FOOTNOTES.
p.3 |
This was not the first voyage of a steamer between
England and America. The Savannah made the passage from
New York to Liverpool as early as 1819; but steam was only used
occasionally during the voyage. In 1825, the Enterprise,
with engines by Maudslay, made the voyage from Falmouth to Calcutta
in 113 days; and in 1828, the Curacoa made the voyage between
Holland and the Dutch West Indies. But in all these cases,
steam was used as an auxiliary, and not as the one essential means
of propulsion, as in the case of the Sirius and the Great
Western, which were steam voyages only.
Ed.—the Sirius
was originally built for the London to Cork route. In April
1838 she made the first wholly steam-powered trans-Atlantic crossing, between Cork
and New York, in 18 days 4
hours and 22 minutes compared with the average westbound passage of
40 days. |
p.4 |
"In 1862 the steam tonnage of the country was 537,000
tons; in 1872 it was 1,537,000 tons; and in 1882, it had reached
3,835,000 tons."—Mr. Chamberlain's speech, House of Commons,
19th May, 1884. |
p.5 |
The last visit of the plague was in 1665. |
p.6-1 |
Roll of Edward the Third's Fleet. Cotton's
Library, British Museum. |
p.6-2 |
CHARNOCK'S
History of Marine Architecture, ii. 89. |
p.7 |
State Papers. HenryVIII. Nos. 3496, 3616, 4633.
The principal kinds of ordnance at that time were these:—The
"Apostles," so called from the head of an Apostle which they bore; "Curtows,"
or "Courtaulx"; "Culverins" and "Serpents"; "Minions," and
"Pot-guns"; "Nurembergers," and "Bombards" or mortars. |
p.9-1 |
The sum of all costs of the Harry Grace de Dieu
and three small galleys, was £7,708 5s. 3d. (S.P.O. No. 5228, Henry
VIII.) |
p.9-2 |
CHARNOCK,
ii. 47 (note). |
p.11 |
MACPHERSON,
Annals of Commerce, ii. 126. |
p.12 |
The Huguenots: their Settlements, Churches, and
Industries, in England and Ireland, ch. iv. |
p.24-1 |
MACPHERSON,
Annals of Commerce, ii. 156. |
p.24-2 |
Ibid. ii. 85. |
p.24-3 |
PICTON'S
Selections from the Municipal Archives and Records of Liverpool,
p. 90. About a hundred years later, in 1757, the gross customs
receipts of Liverpool had increased to £198,946; whilst those of
Bristol were as much as £351,211 in 1883, the amount of tonnage of
Liverpool, inwards and outwards, was 8,527,531 tons, and the total
dock revenue for the year was £1,273,752! |
p.25 |
There were not only Algerine but English pirates
scouring the seas. Keutzner, the German, who wrote in
Elizabeth's reign, said, "The English are good sailors and famous
pirates (sunt boni nautae et insignis pyratae)."
Roberts, in his Social History of the Southern Counties (p.
93), observes, "Elizabeth had employed many English as privateers
against the Spaniard. After the war, many were loth to lead an
inactive life. They had their commissions revoked, and were
proclaimed pirates. The public looked upon them as gallant
fellows; the merchants gave them underhand support; and even the
authorities in maritime towns connived at the sale of their plunder.
In spite of proclamations, during the first five years after the
accession of James I., there were continual complaints. This
lawless way of life even became popular. Many Englishmen
furnished themselves with good ships and scoured the seas, but
little careful whom they might plunder." It was found very
difficult to put down piracy. According to Oliver's History
of the City of Exeter, not less than "fifteen sail of Turks"
held the English Channel, snapping up merchantmen, in the middle of
the seventeenth century! The harbours in the south-west were
infested by Moslem pirates, who attacked and plundered the ships,
and carried their crews into captivity. The loss, even to an
inland port like Exeter, in ships, money, and men, was enormous. |
p.26-1 |
Naval Tracts, p. 294. |
p.26-2 |
This poem is now very rare. It is not in the
British Museum. |
p.27 |
There are three copies extant of the autobiography,
all of which are in the British Museum. In the main, they
differ but slightly from each other. Not one of them has been
published in extenso. In December, 1795, and in
February, 1796, Dr. Samuel Denne communicated to the Society of
Antiquaries particulars of two of these MSS., and
subsequently published copious extracts from them in their
transactions (Archlœ. xii. anno 1796), in a very irregular
and careless manner. It is probable that Dr. Denne never saw
the original manuscript, but only a garbled copy of it. The
above narrative has been taken from the original, and collated with
the documents in the State Paper Office. |
p.29 |
See, for instance, the Index to the Journals of
Records of the Corporation of the City of London (No. 2, p. 346,
1590–1694) under the head of "Sir Walter Raleigh." There is a
document dated the 15th November, 1593, in the 35th of Elizabeth,
which runs as follows:—"Committee appointed on behalf of such of the
City Companies as have ventured in the late Fleet set forward by Sir
Walter Raleigh, Knight, and others, to join with such honourable
personages as the Queen hath appointed, to take a perfect view of
all such goods, prizes, spices, jewels, pearls, treasures, &c.,
lately taken in the Carrack, and to make sale and division (Jor. 23,
p. 156). Suit to be made to the Queen and Privy Council for
the buying of the goods, &c., lately taken at sea in the Carrack; a
committee appointed to take order accordingly; the benefit or loss
arising hereon to be divided and borne between the Chamber [of the
Corporation of the City] and the Companies that adventured (157).
The several Companies that adventured at sea with Sir Walter Raleigh
to accept so much of the goods taken in the Carrack to the value of
£12,000 according to the Queen's offer. A committee appointed
to acquaint the Lords of the Council with the City's acceptance
thereof (167). Committee for sale of the Carrack goods
appointed (174). Bonds for sale to be sealed (196). . . .
Committee to audit accounts of a former adventure (224 b.)." |
p.31 |
There were three sisters in all, the eldest of whom
(Abigail) fell a victim to the cruelty of Nunn, who struck her
across the head with the fire-tongs, from the effects of which she
died in three days. Nunn was tried and convicted of
manslaughter. He died shortly after. Mrs. Nunn,
Phineas's mother, was already dead. |
p.32 |
It would seem, from a paper hereafter to be
more particularly referred to, that the government encouraged the
owners of ships and others to clear the seas of these pirates,
agreeing to pay them for their labours. In 1622, Pett fitted
out an expedition against these pests of navigation, but experienced
some difficulty in getting his expenses repaid. |
p.34 |
See grant S. P. O., 29th May, 1605. |
p.35 |
An engraving of this this remarkable ship is given in
Charnock's History of Marine Architecture, ii. p. 199. |
p.36 |
The story of the Three, or rather Two Ravens, is as
follows:—The body of St. Vincent was originally deposited at the
Cape, which still bears his name, on the Portuguese coast; and his
tomb, says the legend, was zealously guarded by a couple of ravens.
When it was determined, in the 12th century, to transport the relics
of the Saint to the Cathedral of Lisbon, the two ravens accompanied
the ship which contained them, one at its stem and the other at its
stern. The relics were deposited in the Chapel of St. Vincent,
within the Cathedral, and there the two ravens have ever since
remained. The monks continued to support two such birds in the
cloisters, and till very lately the officials gravely informed the
visitor to the Cathedral that they were the identical ravens which
accompanied the Saint's relics to their city. The birds figure
in the arms of Lisbon. |
p.37 |
The evidence taken by the Commissioners is embodied
in a voluminous report. State Paper Office, Dom, James I.,
vol. xli. 1608. |
p.38 |
The Earl of Northampton, Privy Seal, was Lord Warden
of the Cinque Ports; hence his moving in the matter. Pett says
he was his "most implacable enemy." It is probable that the
earl was jealous of Pett because he had received his commission to
build the great ship directly from the sovereign, without the
intervention of his lordship. |
p.39 |
This Royal investigation took place at Woolwich on
the 8th May, 1609. The State Paper Office contains a report of
the same date, most probably the one presented to the King, signed
by six ship-builders and Captain Waymouth, and counter-signed by
Northampton and four others. The Report is headed "The Prince
Royal: imperfections found upon view of the new work begun at
Woolwich." It would occupy too much space to give the results
here. |
p.41-1 |
Alas! for the uncertainties of life! This noble
young prince—the hope of England and the joy of his parents, from
whom such great things were anticipated— for he was graceful, frank,
brave, active, and a lover of the sea,—was seized with a serious
illness, and died in his eighteenth year, on the 16th November,
1612. |
p.41-2 |
Ed.—the following entry appears in Wikipedia:
HMS Prince Royal was a 55-gun Royal Ship of the English Royal
Navy, built by Phineas Pett at Woolwich and launched in 1610.
In 1641 she was rebuilt by Peter Pett I at Woolwich as a 70-gun
ship. During the time of the Commonwealth of England she was
named Resolution and fought in most battles of the First
Anglo-Dutch War. By 1660 she was carrying 80 guns. In
1663 she was rebuilt at Woolwich Dockyard by Phineas Pett II as a
92-gun first rate ship of the line.
In 1665, during the Second Anglo-Dutch War, she served as flagship
of Edward Montagu, 1st Earl of Sandwich at the Battle of Lowestoft
on 3 June. A year later in 1666, as Vice-Admiral George Ayscue's
flagship in the Four Days Battle, on the third day of which she ran
aground on the Galloper Sand. When Dutch fireships began approaching
the stranded ship, her crew panicked and struck her colours. Ayscue
was forced to surrender to Lieutenant-Admiral Cornelis Tromp aboard
the Gouda. Lieutenant-Admiral Michiel de Ruyter ordered Prince
Royal to be burned, then a general Dutch policy with captured
prizes to prevent them from being recaptured later in a battle. |
p.42 |
Pett says she was to be 500 tons, but when be turned
her out her burthen was rated at 700 tons. |
p.43-1 |
This conduct of Raleigh's was the more inexcusable,
as there is in the State Paper Office a warrant dated 16th Nov.,
1617, for the payment to Pett of 700 crowns "for building the new
ship, the Destiny of London, of 700 tons burthen." The
least he could have done was to have handed over to the builder his
royal and usual reward. In the above warrant, by the way, the
title "our well-beloved subject," the ordinary prefix to such
grants, has either been left blank or erased (it is difficult
to say which), but was very significant of the slippery footing of
Raleigh at Court. |
p.43-2 |
Sir Giles Overreach, in the play of "A new way to pay
old debts," by Philip Massinger. It was difficult for the
poet, or any other person, to libel such a personage as Mompesson. |
p.45 |
Pett's method is described in a paper contained in
the S. P. O., dated 21st Oct., 1626. The Trinity Corporation
adopted his method. |
p.47-1 |
Ed.—Sovereign of the Seas was ordered
in August 1634 on the personal initiative of Charles I, who desired
a giant Great Ship to be built. Originally ordered as a 90-gun
first rate ship of the line, when launched on 13 October 1637 she
carried 102 bronze guns (at the King's insistence). Later
renamed Sovereign, and then Royal Sovereign, she
served from 1638 until 1697, when she was destroyed by fire at
Chatham. |
p.47-2 |
Memoirs of the Life and Services of Rear-Admiral
Sir William Symonds, Kt., p. 94. |
p.48 |
Pett's dwelling-house at Rochester is thus described
in an anonymous history of that town (p. 337, ed. 1817):—"Beyond the
Victualling Office, on the same side of the High Street, at
Rochester, is an old mansion, now occupied by a Mr. Morson, an
attorney, which formerly belonged to the Petts, the celebrated
ship-builders. The chimney-piece in the principal room is of
wood, curiously carved, the upper part being divided into
compartments by caryatydes. The central compartment contains
the family arms, viz., Or, on a fesse, gu., between three
pellets, a lion passant gardant of the field. On the back of
the grate is a cast of Neptune, standing erect in his car, with
Triton blowing conches, &c., and the date 1650." |
p.49 |
SYMONDS,
Memoirs of Life and Services, 94. |
p.50 |
In the Transactions of the Institution of Naval
Architects for 1860, it was pointed out that the general dimensions
and form of bottom of this ship were very similar to the most famous
line-of-battle ships built down to the end of last century, some of
which were then in existence. |
p.51 |
According to the calculation of Mr. Chatfield, of Her
Majesty's dockyard at Plymouth, in a paper read before the British
Association in 1841 on shipbuilding. |
p.53 |
The phrase "wooden walls" is derived from the Greek.
When the city of Athens was once in danger of being attacked and
destroyed, the oracle of Delphi was consulted. The inhabitants
were told that there was no safety for them but in their "wooden
walls,"—that is their shipping. As they had then a powerful
fleet, the oracle gave them rational advice, which had the effect of
saving the Athenian people. |
p.54 |
An account of these is given by Bennet Woodcroft in
his Sketch of the Origin and Progress of Steam Navigation,
London, 1848. |
p.58 |
See Industrial Biography, pp. 183-197. |
p.66 |
The story is told in Scribner's Monthly
Illustrated Magazine, for April 1879. Ericsson's modest
bill was only $15,000 for two years' labour. He was put off
from year to year, and at length the Government refused to pay the
amount. "The American Government," says the editor of
Scribner, "will not appropriate the money to pay it, and that is
all. It is said to be the nature of republics to be
ungrateful; but must they also be dishonest?" |
p.70-1 |
This six-bladed propeller proved totally
unsatisfactory in service and was quickly replaced with a
four-bladed model. |
p.70-2 |
Memoirs of the Life and Services of Rear-Admiral
Sir William Symonds, Kt., p. 332. |
p.73 |
Originally published in Longman's Magazine,
but now re-written and enlarged. |
p.74 |
Popular Astronomy. By Simon Newcomb,
LL.D., Professor U. S. Naval Observatory. |
p.77 |
Biographia Britannica, vol. vi. part 2, p.
4375. This volume was published in 1766, before the final
reward had been granted to Harrison. |
p.79 |
This date is not correct, as will be found in the
subsequent statement. |
p.82-1 |
Harrison's compensation pendulum was afterwards
improved by Arnold, Earnshaw, and other English makers. Dent's
prismatic balance is now considered the best. |
p.82-2 |
Ed.―the Gridiron Pendulum was an
improved clock pendulum invented by Harrison around 1726, which
didn't change in length with temperature so that its period of swing
stayed constant with changes in ambient temperature. It
consisted of alternating zinc and iron rods assembled so that their
different thermal expansions (or contractions) cancel each other
out. The diagram shows its operation. |
p.82-3 |
See Mr. Folkes's speech to the Royal Soc., 30th Nov.,
1749. |
p.83 |
Ed.—the Board of Longitude was the
popular name for the Commissioners for the Discovery of the
Longitude at Sea. It was a British Government body formed in
1714 to solve the problem of finding longitude at sea. The
Board recognised that any serious attempt would be based on the
recognition that the earth rotates through 15° of longitude every
hour. The comparison of time between a known place
(e.g., Greenwich, Longitude 0°) and the local time would determine
longitude. Since local apparent time could be determined with
some ease, the problem centred on finding a means of determining the
time at a known place (e.g. Greenwich). |
p.84-1 |
No trustworthy lunar tables existed at that time.
It was not until the year 1753 that Tobias Mayer, a German,
published the first lunar tables which could be relied upon.
For this, the British Government afterwards awarded to Mayer's widow
the sum of £5,000. |
p.84-2 |
Ed.—the following description appears in
Wikipedia (an excellent animated image also appears, which illustrates the
sextant's operation):
A sextant is an instrument generally used to measure the
altitude of a celestial object above the horizon. Making this
measurement is known as sighting the object, shooting the object, or
taking a sight. The angle, and the time when it was measured, can be
used to calculate a position line on a nautical or aeronautical
chart. A common use of the sextant is to sight the sun at noon to
find one's latitude.
Held horizontally, the sextant can be used to
measure the angle between any two objects, such as between two
lighthouses, which will, similarly, allow for calculation of a
position on a chart. |
p.85 |
Sir Isaac Newton gave his design to Edmund Halley,
then Astronomer-Royal. Halley laid it on one side, and it was
found among his papers after his death in 1742, twenty-five years
after the death of Newton. A similar omission was made by Sir
G. B. Airey, which led to the discovery of Neptune being attributed
to Leverrier instead of to Adams. |
p.86-1 |
Ed.—Latitude is an angular measurement
in degrees ranging from 0° at the Equator to 90° at the Poles.
It therefore gives the location of a place on Earth, North or South
of the Equator.
Lines of Latitude are the imaginary
horizontal lines (particularly so in the Mercator projection) shown
on maps and navigation charts. |
p.86-2 |
Ed.—Dead Reckoning is the process of
estimating one's current position based upon a previously determined
position, or fix, and advancing that position based upon known or
estimated speeds over elapsed time, and course. The
disadvantage of 'traditional' dead reckoning in marine navigation is
that the navigator needs to estimate the ship's 'course made good'
and 'speed over the ground', both of which depend (among other
things) on the effects of wind and current, which cannot be
determined precisely. And since new positions are calculated
solely from previous positions, the errors of the process are
cumulative, so the error in the position fix grows with time.
However, modern electronic Inertial Navigation Systems
overcome these problems. |
p.110-1 |
"This was equally the case with two other
trades;—those of glass-maker and druggist, which brought no
contamination upon nobility in Venice. Ina country where wealth was
concentrated in the hands of the powerful, it was no doubt highly
judicious thus to encourage its employment for objects of public
advantage. A feeling, more or less powerful, has always existed in
the minds of the high-born, against the employment of their time and
wealth to purposes of commerce or manufactures. All trades, save
only that of war, seem to have been held by them as in some sort
degrading, and but little comporting with the dignity of
aristocratic blood."— CABINET CYCLOPEDIA - Silk Manufacture, p. 20. |
p.110-2 |
A Brief State of the Inland or Home Trade.
(Pamphlet.) 1730. |
p.112-1 |
A Brief State of the Case relating to the Machine
erected at Derby for making Italian Organzine Silk, which was
discovered and brought into England with the utmost difficulty and
hazard, and at the Sole Expense of Sir Thomas Lombe. House
of Commons Paper, 28th January, 1731. |
p.112-2 |
Self-Help, p. 205. |
p.118 |
The Trade and Navigation of Great Britain
considered, p. 94. |
p.119 |
The petition sets forth the merits of the machine at
Derby for making Italian organzine silk—"a manufacture made out of
fine raw silk, by reducing it to a hard twisted fine and even
thread. This silk makes the warp, and is absolutely necessary
to mix with and cover the Turkey and other coarser silks thrown
here, which are used for Shute,—so that, without a constant
supply of this fine Italian organzine silk, very little of the said
Turkey or other silks could be used, nor could the silk weaving
trade be carried on in England. This Italian organzine (or
thrown) silk has in all times past been bought with our money, ready
made (or worked) in Italy, for want of the art of making it here.
Whereas now, by making it ourselves out of fine Italian raw silk,
the nation saves near one-third part; and by what we make out
of fine China raw silk, above one-half of the price we pay
for it ready worked in Italy. The machine at Derby contains
97,746 wheels, movements, and individual parts (which work day and
night), all which receive their motion from one large water-wheel,
are governed by one regulator, and it employs about 300 persons to
attend and supply it with work." In Rees Cyclopedia
(art. 'Silk Manufacture') there is a full description of the
Piedmont throwing machine introduced to England by John Lombe, with
a good plate of it. |
p.120 |
Sir Thomas Lombe died in 1738. He had two
daughters. The first, Hannah, was married to Sir Robert
Clifton, of Clifton, co. Notts; the second, Mary Turner, was married
to James, 7th Earl of Lauderdale. In his will, he "recommends
his wife, at the conclusion of the Darby concern," to distribute
among his "principal servants or managers five or six hundred
pounds." |
p.122 |
FLETCHER'S
Political Works, London, 1737, p. 149. |
p.124 |
One of the Murdocks built the cathedral at Glasgow,
as well as others in Scotland. The famous school of masonry at
Antwerp sent out a number of excellent architects during the 11th,
12th, and 13th centuries. One of these, on coming into
Scotland, assumed the name of Murdo. He was a Frenchman, born
in Paris, as we learn from the inscription left on Melrose Abbey,
and he died while building that noble work: it is as follows:—
"John Murdo sumtyme calt was I
And born in Peryse certainly,
An' had in kepyng all mason wark
Sanct Andrays, the Hye Kirk o' Glasgo,
Melrose and Paisley, Jedybro and Galowy.
Pray to God and Mary baith, and sweet
Saint John, keep this Holy Kirk frae scaith." |
|
p.125 |
The discovery of the Black Band Ironstone by David
Musket in 1801, and the invention of the Hot Blast by James Beaumont
Neilson in 1828, will be found related in Industrial Biography,
pp. 111-161. |
p.128 |
Note to LOCKHART'S
Life of Scott. |
p.130-1 |
This was stated to the present writer some years ago
by William Murdock's son; although there is no other record of the
event. |
p.130-2 |
Ed.—the Wikipedia caption to this illustration
reads:
"Schematic animation of Murdoch's sun and planet gears. The
Sun is yellow, the planet red, the reciprocating crank is blue, the
flywheel is green and the driveshaft is grey. Notice that the
sun and flywheel rotate twice for every rotation of the planet when
they have a 1:1 ratio of teeth." |
p.133 |
See Lives of Engineers (Boulton
and Watt), iv. pp. 182-4. Small edition, pp. 130-2. |
p.137-1 |
Mr. Pearse's letter is dated 23rd April, 1867, but
has not before been published. He adds that "others remembered
Murdock, one who was an apprentice with him, and lived with him for
some time—a Mr. Vivian, of the foundry at Luckingmill." |
p.137-2 |
Murdock's house still stands in Cross Street,
Redruth; those still live who saw the gas-pipes conveying gas from
the retort in the little yard to near the ceiling of the room, just
over the table; a hole for the pipe was made in the window frame.
The old window is now replaced by a new frame."—Life of Richard
Trevithick, i. 64. |
p.139 |
Ed.—for an explanation of slide valves in
general, and a schematic of Murdoch's 'long D slide valve' in
particular, see this entry at
Wikipedia. |
p.142-1 |
Philosophical Transactions, 1808, pp. 124-132. |
p.142-2 |
Winsor's family evidently believed in his great
powers; for I am informed by Francis Galton, Esq., F.R.S., that
there is a fantastical monument on the right-hand side of the
central avenue of the Kensal Green Cemetery, about half way between
the lodge and the church, which bears the following inscription—
"Tomb of Frederick Albert Winsor, son of the late Frederick
Albert Winsor, originator of public Gas-lighting, buried in the
Cemetery of Pere la Chaise, Paris.
"At evening time it shall be light.—Zachariah xiv. 7.
"I am come a light into the world, that whoever believeth in
Me shalt not abide in darkness.—John xii. 46." |
p.144 |
Mr. Parkes, in his well-known Chemical Essays
(ed. 1841, p. 157), after referring to the successful lighting up by
Murdock of the manufactory of Messrs. Phillips and Lee at Manchester
in 1805, "with coal gas issuing from nearly a thousand burners,"
proceeds, "This grand application of the new principle satisfied the
public mind, not only of the practicability, but also of the economy
of the application; and as a mark of the high opinion they
entertained of his genius and perseverance, and in order to put the
question of priority of the discovery beyond all doubt, the Council
of the Royal Society in 1808 awarded to Mr. Murdock the Gold Medal
founded by the late Count Rumford." |
p.153 |
"Thus," says Sir Charles Babbage, "in a future age,
power may become the staple commodity of the Icelanders, and
of the inhabitants of other volcanic districts; and possibly the
very process by which they I will procure this article of exchange
for the luxuries of happier climates may, in some measure, tame the
tremendous element which occasionally devastates their provinces."—Economy
of Manfactures. |
p.160 |
Koenig's letter in The Times, 8th December,
1814. |
p.163 |
Koenig's letter in The Times, 8th December,
1814. |
p.164 |
Date of Patent, 29th April, 1790, No. 1748. |
p.165 |
Koenig's letter in The Times, 8th December,
1814. |
p.167 |
Mr. Richard Taylor, one of the partners in the
patent, says, "Mr. Perry declined, alleging that he did not consider
a newspaper worth so many years' purchase as would equal the cost of
the machine." |
p.176 |
Mr. Richard Taylor, F.S.A., memoir in 'Philosophical
Magazine' for October 1847, p. 300. |
p.179 |
The price of a single cylinder non-registering
machine was advertised at £900; of a double ditto, £1,400; and of a
cylinder registering machine, £2,000; added to which was £250, £350
and £500 per annum for each of these machines so long as the patent
lasted, or an agreed sum to be paid down at once. |
p.189 |
Diary, Reminiscences, and Correspondence of Henry
Crabb Robinson, Barrister-at-Law, F.S.A., i. 231. |
p.202 |
After the appearance of my article on the Koenig and
Walter Presses in Macmillan's Magazine for December, 1869, I
received the following letter from Sir Rowland Hill:—
"HAMPSTEAD,
"January 5th, 1870.
MY DEAR
SIR," In
your very interesting article in Macmillan's Magazine
on the subject of the printing machine, you have
unconsciously done me some injustice. To convince
yourself of this, you have only to read the enclosed
paper. The case, however, will be strengthened
when I tell you that as far back as the year 1856, that
is, seven years after the expiry of my patent, I pointed
out to Mr. Mowbray Morris, the manager of The Times,
the fitness of my machine for the printing of that
journal, and the fact that serious difficulties to its
adoption had been removed. I also, at his request,
furnished him with a copy of the document with which I
now trouble you. Feeling sure that you would like
to know the truth on any subject of which you may treat,
I should be glad to explain the matter more fully, and
for this purpose will, with your permission, call upon
you at any time you may do me the favour to appoint.
"Faithfully yours,
"ROWLAND HILL."
|
On further enquiry I obtained the Patent No. 6762; but found
that nothing practical had ever come of it. The pamphlet
enclosed by Sir Rowland Hill in the above letter is entitled 'The
Rotary Printing Machine.' It is very clever and ingenious,
like everything he did. But it was still left for some one
else to work out the invention into a practical working
printing-press. The subject is fully referred to in the 'Life
of Sir Rowland Hill' (i. 224, 525). In his final word on the
subject, Sir Rowland "gladly admits the enormous difficulty of
bringing a complex machine into practical use," a difficulty, he
says, which "has been most successfully overcome by the patentees of
the Walter Press." |
p.221 |
This article originally appeared in 'Good Words.'
A biography of Charles Bianconi, by his daughter, Mrs. Morgan John
O'Connell, has since been published; but the above article is
thought worthy of republication, as its contents were for the most
part taken principally from Mr. Bianconi's own lips. |
p.231 |
Minutes of Evidence taken before the Select Committee
on Postage (Second Report), 1838, p.284. |
p.239 |
Ed.—Wikipedia
offers the following entry for "Whiteboys"
"The Whiteboys were a secret Irish agrarian
organization in 18th-century Ireland which used violent tactics to
defend tenant farmer land rights for subsistence farming.
Their name derives from the white smocks the members wore in their
nightly raids, but the Whiteboys were as usually referred to at the
time as Levellers by the authorities, and by themselves as "Queen
Sive Oultagh's children", "fairies", or as followers of "Johanna
Meskill" or "Sheila Meskill", all symbolic figures supposed to lead
the movement. They sought to address rack-rents, tithe
collection, excessive priests' dues, evictions and other oppressive
acts. As a result they targeted landlords and tithe
collectors. Over time, Whiteboyism became a general term for
rural violence connected to secret societies. Because of this
generalization, the historical record for the Whiteboys as a
specific organisation is unclear." |
p.242-1 |
Evidence before the Select Committee on Postage,
1838. |
p.242-2 |
Ed.—Anna Maria Hall [née Fielding]
(1800–1881), Irish writer and journal editor (Sharpe's London
Magazine [1852–3]), and the St James's Magazine [1861–8]
in which she published much decent serial fiction. In 1824 she
married the Irish journal editor and writer (Samuel) Carter Hall
(1800–1889). Between them they published over 500 books. |
p.243-1 |
Hall's 'Ireland,' ii. 76. |
p.243-2 |
Paper read before the British Association at Cork,
1843. |
p.245 |
Ed.—The National Association for the
Promotion of Social Science, otherwise known as the Social
Science Association and also NAPSS, was the pre-eminent
forum for the discussion of social questions and the dissemination
of knowledge about society in mid-Victorian Britain. Founded
in 1857 and active until 1884, it provided expert guidance to
policy-makers and politicians in the era of Gladstone and Disraeli.
The Association’s achievements took different forms. As
a supposedly neutral forum it brought contending parties together to
engage in reasoned debate. As an expert forum, it sponsored
important social research such as its famous, compendious
investigation of trades’ unions, Trades’ Societies and Strikes,
which was published in 1860, and which the Webbs adjudged the best
analysis of organised labour in the whole of the nineteenth century.
From its headquarters off Pall Mall it was an assiduous lobbyist,
organising some prominent delegations to press for reform. Its
"Transactions" have been described as ‘cardinal documents for the
history of social research and policy’. See also
Isa Craig. |
p.248 |
The British Association for the Advancement of
Science or the British Science Association, formerly
known as the BA, is a learned society with the object of
promoting science, directing general attention to scientific
matters, and facilitating interaction between scientific workers.
Its original purpose, expressed through its annual meetings held in
different towns and cities throughout the UK was: ‘to give a
stronger impulse and a more systematic direction to scientific
inquiry; to promote the intercourse of those who cultivate Science
in different parts of the British Empire with one another and with
foreign philosophers; to obtain more general attention for the
objects of Science and the removal of any disadvantages of a public
kind that may impede its progress.’ In the Abstract of the 1857
meeting in Dublin there appears ;
"In the Statistics section we have 5 out of 40,
mostly on land and crime; there was, however, a gem from Bianconi,
following up an earlier paper at Cork on transportation system
management, in which he showed how he had adapted to the railways.
In contrast to the other topics, he defended Irish morality against
the scurrility of the English press, on the grounds that he had
never had a vehicle delayed as a result of any criminal act, or
robbed." |
p.256 |
Ed.—it's interesting to read what Smiles has
to say about the Irish politics of his time and its reporting, for
on the day that I transcribed these pages (4th Nov. 2009) the BBC
published this news report:
"The drift of members from the Provisional IRA to the
ranks of the dissident groups will cause the most alarm for
politicians reading the latest report from the Independent
Monitoring Commission. The nightmare scenario for the peace
process is that just as one IRA disappears, another one emerges with
the same level of bomb-making capability and weapons experience.
It would be like turning the clock back in Northern Ireland to the
dark old days of the 1970s and 1980s . . . . in 1989, the IRA killed
53 people. That amounts to a death every week."
Mark Simpson, BBC News Ireland correspondent. |
p.260-1 |
Report in the Cork Examiner, 5th July, 1883. |
p.260-2 |
In 1883, as compared with 1882, there was a decrease
of 58,022 acres in the land devoted to the growth of wheat; there
was a total decrease of 114,871 acres in the land under tillage.—Agricultural
Statistics, Ireland, 1883. Parliamentary Return, c. 3768. |
p.260-3 |
Statistical Abstract for the United Kingdom,
1883. |
p.261 |
The particulars are these: deposits in Irish Post
Office Savings Banks, 31st December, 1882, £1,925,440; to the credit
of depositors and Government stock, £125,000; together, £2,050,440.
The increase of deposits over those made in the preceding year,
were: in Dublin, £31,321; in Antrim, £23,328; in Tyrone, £21,315; in
Cork, £17,034; and in Down, £10,382. |
p.263 |
The only thriving manufacture now in Dublin is that
of intoxicating drinks—beer, porter, stout, and whisky.
Brewing and distilling do not require skilled labour, so that
strikes do not affect them. |
p.264 |
Times, 11th June, 1883. |
p.265 |
The valuation of the county of Aberdeen (exclusive of
the city) was recently 866,8161., whereas the value of the herrings
(748,726 barrels) caught round the coast (at 25s. the barrel)
was £9335,907, thereby exceeding the estimated annual rental of the
county by £69,091. The Scotch fishermen catch over a million
barrels of herrings annually, representing a value of about a
million and a-half sterling. |
p.266 |
A recent number of Land and Water supplies the
following information as to the fishing at Kinsale:—"The takes of
fish have been so enormous and unprecedented that buyers can
scarcely be found, even when, as now, mackerel are selling at one
shilling per six score. Piles of magnificent fish lie rotting
in the sun. The sides of Kinsale Harbour are strewn with them,
and frequently, when the have become a little 'touched,' whole
boat-loads are thrown overboard into the water. This great
waste is to be attributed to scarcity of hands to salt the fish and
want of packing-boxes. Some of the boats are said to have made
as much as £500 this season. The local fishing company are
making active preparations for the approaching herring fishery, and
it is anticipated that Kinsale may become one of the centres of this
description of fishing." |
p.267-1 |
Statistical Journal for March 1848.
Paper by Richard Valpy on "The Resources of the Irish Sea
Fisheries," pp. 55-72. |
p.267-2 |
HALL,
Retrospect of a Long Life, ii. 324. |
p.267-3 |
The Commissioners of Irish Fisheries, in one of their
reports, observe:—"Notwithstanding the diminished population, the
fish captured round the coast is so inadequate to the wants of the
population that fully £150,000 worth of ling, cod, and herring are
annually imported from Norway, Newfoundland, and Scotland, the
vessels bearing these cargoes, as they approach the shores of
Ireland, frequently sailing through large shoals of fish of the same
description as they are freighted with!" |
p.268 |
The following examination of Mr. J. Ennis, chairman
of the Midland and Great Western Railway, took place before the
"Royal Commission on Railways," as long ago as the year 1846:—
Chairman—"Is the fish traffic of any importance to your
railway?"
Mr. Ennis—"Of course it is, and we give it all the facilities
that we can. . . . But the Galway fisheries, where one would expect
to find plenty of fish, are totally neglected."
Sir Rowland Hill—"What is the reason of that?"
Mr. Ennis—"I will endeavour to explain. I had occasion
a few nights ago to speak to a gentleman in the House of Commons
with regard to an application to the Fishery Board for £2,000 to
restore the pier at Buffin, in Clew Bay, and I said, 'Will you join
me in the application? I am told it is a place that swarms
with fish, and if we had a pier there the fishermen will have some
security, and they will go out.' The only answer I received
was, 'They will not go out; they pay no attention whatever to the
fisheries; they allow the fish to come and go without making any
effort to catch them. . . . '"
Mr. Ayrton—"Do you think that if English fishermen went to
the west coast of Ireland they would be able to get on in harmony
with the native fishermen?"
Mr. Ennis—"We know the fact to be, that some years ago, a
company was established for the purpose of trawling in Galway Bay,
and what was the consequence? The Irish fishermen, who inhabit
a region in the neighbourhood of Galway, called Claddagh, turned out
against them, and would not allow them to trawl, and the Englishmen
very properly went away with their lives."
Sir Rowland Hill—"Then they will neither fish themselves nor
allow any one else to fish!"
Mr. Ennis—"It seems to be so."—Minutes of Evidence,
175-6. |
p.269 |
The Derry Journal. |
p.270-1 |
Report of Inspectors of Irish Fisheries for
1882. |
p.270-2 |
The Report of the Inspectors of Irish Fisheries on
the Sea and Inland Fisheries of Ireland for 1882, gives a large
amount of information as to the fish which swarm round the Irish
coast. Mr. Brady reports on the abundance of herring and other
fish all round the coast. Shoals of herrings "remained off
nearly the entire coast of Ireland from August till December."
"Large shoals of pilchards" were observed on the south and
south-west coasts. Off Dingle, it is remarked, the supply of
all kinds of fish is practically inexhaustible." "Immense
shoals of herrings off Liscannor and Loop Head;" "the mackerel is
always on this coast, and can be captured at any time of the year,
weather permitting." At Belmullet, "the shoals of fish off the
coast, particularly herring and mackerel, are sometimes enormous."
The fishermen, though poor, are all very orderly and well conducted.
They only want energy and industry. |
p.272 |
The Harleian Miscellany, iii, 378-91. |
p.273 |
The Harleian Miscellany, iii. 392. |
p.276 |
See The Huguenots in England and Ireland.
A Board of Traders, for the encouragement and promotion of the hemp
and flax manufacture in Ireland, was appointed by an Act of
Parliament at the beginning of last century (6th October, 1711), and
the year after the appointment of the Board the following notice was
placed on the records of the institution:—"Louis Crommelin and the
Huguenot colony have been greatly instrumental in improving and
propagating the flaxen manufacture in the north of this Kingdom, and
the perfection to which the same is brought in that part of the
country has been greatly owing to the skill and industry of the said
Crommelin." In a history of the linen trade, published at
Belfast, it is said that "the dignity which that enterprising man
imparted to labour, and the halo which his example cast around
physical exertion, had the best effect in raising the tone of
popular feeling, as well among the patricians as among the peasants
of the north of Ireland. This love of industry did much to
break down the national prejudice in favour of idleness, and cast
doubts on the social orthodoxy of the idea then so popular with the
squirearchy, that those alone who were able to live without
employment had any rightful claim to the distinctive title of
gentleman. . . . A patrician by birth and a merchant by profession,
Crommelin proved, by his own life, his example, and his enterprise,
that an energetic manufacturer may, at the same time, take a high
place in the conventional world." |
p.278 |
BENN'S
History of Belfast, p. 78. |
p.281 |
From the Irish Manufacturers' Almanack for
1883 I learn that nearly one-third of the spindles used in Europe in
the linen trade, and more than one-fourth of the power-looms, belong
to Ireland,—that "the Irish linen and associated trades at present
give employment to 176,303 persons; and it is estimated that the
capital sunk in spinning and weaving factories, and the business
incidental thereto, is about £100,000,000, and of that sum
£37,000,000 is credited to Belfast alone." |
p.284 |
The importation of coal in 1883 amounted to over
700,000 tons. |
p.286 |
We are indebted to the obliging kindness of the Right
Hon. Mr. Fawcett, Postmaster-General for this return. The
total number of depositors in the Post Office Savings banks in the
Parliamentary borough of Belfast is 10,827 and the amount of their
deposits, including the interest standing to their credit, the 31st
December, 1882, was £158,064 0s. 1d.
An important item in the savings of Belfast, not included in the
above returns, consists in the amounts of deposits made with the
various Limited Companies, as well as with the thriving Building
Societies in the town and neighbourhood. |
p.288 |
Ed.—Sir Edward James Harland, 1st Baronet
(1831-95) was a British shipbuilder and Conservative politician.
Outside of his shipbuilding activities, which are described in his
autobiographical note, he served as a Belfast harbour commissioner
and as Mayor of Belfast (1885 and 1886). He retired from the firm of
Harland and Wolff in 1889 and in the same year was elected as Member
of Parliament for Belfast North, retaining his seat until his death.
In 1885 Harland was granted a knighthood and a baronetcy. |
p.295 |
Although Mr. Harland took no further steps with his
lifeboat, the project seems well worthy of a fair trial. We
had lately the pleasure of seeing the model launched and tried on
the lake behind Mr. Harland's residence at Ormiston, near Belfast.
The cylindrical lifeboat kept perfectly water-tight, and though
thrown into the water in many different positions—sometimes tumbled
in on its prow, at other times on its back (the deck being undermost),
it invariably righted itself. The screws fore and aft worked
well, and were capable of being turned by human labour or by steam
power. Now that such large freights of passengers are carried
by ocean-going ships, it would seem necessary that some such method
should be adopted of preserving life at sea; for ordinary lifeboats,
which are so subject to destructive damage, are often of little use
in fires or shipwrecks, or other accidents on the ocean. |
p.304 |
Ed.—"the Sicilian was built in 1860 by
E. J. Harland at Belfast with a tonnage of 1492grt, a length of
175ft 5in, a beam of 34ft and a service speed of 8 knots.
Sister of the Venetian she was launched on 12th November 1860
and delivered to J. Bibby & Sons on 24th November. Chartered
to P&O she operated the same route as her sisters, was lengthened
and equipped with a compound engine in 1872 and sold to Frederick
Leyland & Co. in 1873. In 1878 she was chartered to the
African Steam Ship Co. and acquired by the company and renamed
Mayumba in 1880, commencing her first sailing on 13th November of
that year. She hit and sank R. Gayner's barque Severn
off Madeira in 1881. Acquired by C. R. Gillchrist of Liverpool in
1882 she ended her career in the following year when she caught fire
when at Arzue in Algeria. The ships was scuttled but declared
a total loss."
Courtesy of the
Merchant Navy Association.
The Bibby Line is a British company concerned
with shipping and marine operations. It has operated in most areas
of shipping throughout its 200 year history, and claims to be the
oldest independently owned deep sea shipping line in the world. |
p.305 |
Ed.—the following entry is from Wikipedia:
"Gustav Wilhelm Wolff (1834-1913) was a British shipbuilder and
politician. Born in Hamburg, Germany, he moved to Liverpool in 1849
to live with his uncle, Gustav Christian Schwabe. After
serving his apprenticeship in Manchester, Wolff was employed as a
draughtsman in Hyde, Greater Manchester, before being employed by
the shipbuilder Edward Harland as his personal assistant. In
1861, Wolff became a partner at Harland's firm, forming Harland and
Wolff. Outside shipbuilding, Wolff served as a Belfast harbour
commissioner. He also founded the Belfast Ropeworks and as a
member of the Conservative and Unionist Party served as Member of
Parliament for Belfast East for 18 years. |
p.312 |
Ed.—The 'History'
section (see year 1859) of the Bibby Line website carries the following entry:
In 1859 Bibby Line’s “Venetian” was the first vessel
built by the Belfast shipyard Harland & Wolff. Of the first 21
ships built by the yard 18 were for the Bibby Line. It states in the
official history of this yard … this is the history of the
Belfast Shipyard Harland & Wolff and the Liverpool based Bibby Line.
Without the Bibby family there would have never been a Harland &
Wolff. |
p.313 |
Ed.—Thomas Henry Ismay (1837-99) was founder
of the Oceanic Steam Navigation Company, more commonly known as the
White Star Line (viz Titanic). |
p.314 |
Ed.—the following entry is from Wikipedia:
"RMS Oceanic was the White Star Line's first
liner and an important turning point in passenger liner design.
She was built by Harland and Wolff in Belfast, and was launched on
27 August 1870, arriving in Liverpool for her maiden voyage on 26
February 1871. Powered by a combination of steam and sail, she
had twelve boilers generating steam at 65 pounds-force per square
inch, powered a single four cylinder compound steam engine, 2 x 78
inch (1.98 m) and 2 x 41 inch (1.04 m), with a stroke of 60 inches
(1.52 m). A single funnel exhausted smoke and four masts
carried sail. The hull was constructed of iron and divided
into eleven watertight compartments. Oceanic could
carry 166 first class and 1,000 third class passengers, with a crew
of 143. White Star had spared no expense in her construction,
and the contemporary press described the ship as an 'imperial
yacht'. . . ."
Oceanic had a successful carer, remaining in
service until 1896 when she was broken up for scrap. |
p.317 |
Ed.—The Britannic was sold for scrap in
1903, but the Germanic had a very long and varied
life—including being sunk in 1915 by the British submarine E-14,
after which she was refloated and repaired—eventually being sold for
scrap in 1950. |
p.320 |
A full account is given in the Illustrated London
News of the 21st of October, 1868, with illustrations, of the
raising of the Wolf; and another, more scientific, is given
in the Engineer of the 16th of October, of the same year. |
p.325 |
Ed.—Stirling
Smith Art Gallery and Museum is an institution based in
Stirling, dedicated to the promotion of cultural and historical
heritage and the arts, from a local scale to nationally and beyond.
It is also known locally by its original name of The Smith
Institute. Alexander Croall (1804-1885), its first
Curator, is still remembered for the four volume work that he and
William Grosart Johnstone published in 1860, The Nature-Printed
British Sea-Weeds : a history, accompanied by figures and
dissections of the Algae of the British Isles. A knowledgeable
botanist, his passion for seaweed was such that he was known locally
as ‘Roosty Tangle’. Croall lectured in Botany at the High
School of Stirling, and founded the Stirling Field Club, which
continues today as the Stirling Field and Archaeological Society.
Croall's daughter Annie (1854-1927) also made a significant
contribution in Stirling. After finding a baby abandoned on
the Back Walk, she opened a house for homeless women and then the
Stirling Children’s Home. Her story is recounted in Fifty
Years on a Scottish Battlefield 1873-1923. |
p.327 |
A "poet," who dates from "New York, March 1883," has
published seven stanzas, entitled "Change here for Blairgowrie,"
from which we take the following:—
"From early morn till late at e'en,
John's honest face is to be seen,
Bustling about the trains between,
Be 't sunshine or be 't showery ;
And as each one stops at his door,
He greets it with the well-known roar
Of 'Change here for Blairgowrie.'
Even when the still and drowsy night
Has drawn the curtains of our sight,
John's watchful eyes become more bright,
And take another glow'r aye
Thro' yon blue dome of sparkling stars
Where Venus bright and ruddy Mars
Shine down upon Blairgowrie,
He kens each jinkin' comet's track,
And when it's likely to come back,
When they have tails, and when they lack
In heaven the waggish power aye;
When Jupiter's belt buckle hings,
And the Pyx mark on Saturn's rings,
He sees from near Blairgowrie." |
|
p.332-1 |
The Observatory, No. 61, p. 146; and No. 68,
p. 371. |
p.332-2 |
In an article on the subject in the Dundee Evening
Telegraph, Mr. Robertson observes: "If our finite minds were
more capable of comprehension, what a glorious view of the grandeur
of the Deity would be displayed to us in the contemplation of the
centre and source of light and heat to the solar system. The
force requisite to pour such continuous floods to the remotest parts
of the system must ever baffle the mind of man to grasp. But
we are not to sit down in indolence: our duty is to inquire into
Nature's works, though we can never exhaust the field. Our
minds cannot imagine motion without some Power moving through the
medium of some subordinate agency, ever acting on the sun, to send
such floods of light and heat to our otherwise cold and dark
terrestrial ball ; but. it is the overwhelming magnitude of such
power that we are incapable of comprehending. The agency
necessary to throw out the floods of flame seen during the few
moments of a total eclipse of the sun, and the power requisite to
burst open a cavity in its surface, such as could entirely engulph
our earth, will ever set all the thinking capacity of man at
nought." |
p.334 |
The Observatory, Nos. 34, 42, 45, 49, and 58. |
p.336-1 |
We regret to say that Sheriff Barclay died a few
months ago, greatly respected by all who knew him. |
p.336-2 |
Ed.—a friend of Smiles, Nasmyth—pictured here
in one of Hill and Adamson's fine Calotype studies—was famous for
his development of the steam hammer. Smiles was to edit his
autobiography. |
p.337 |
Ed.—for a remarkable example of Smiles's
pronouncement, that "The one is thrown upon
his own resources, the other works in the company of his fellows:
the one thinks, the other communicates" one need look no further
than the 'Leicester Chartist' and onetime shoemaker,
Thomas Cooper. |
p.341 |
Sir E. Denison Beckett, in his Rudimentary
Treatise on Clocks and Watches and Bells, has given an instance
of the telescope-driving clock, invented by Mr. Cooke (p.213). |
p.343 |
J. NORMAN
LOCKYER, F.R.S.—Stargazing,
Past and Present, p. 302. |
p.344 |
This excellent instrument is now in the possession of
my son-in-law, Dr. Hartree, of Leigh, near Tunbridge. |
p.345 |
An interesting account of Mr. Alvan Clark is given in
Professor Newcomb's 'Popular Astronomy,' p. 137. |
p.346 |
A photographic representation of this remarkable
telescope is given as the frontispiece to Mr. Lockyer's
Stargazing, Past and Present; and a full description of the
instrument is given in the text of the same work. This
refractor telescope did not long remain the largest. Mr. Alvan
Clark was commissioned to erect a larger equatorial for Washington
Observatory; the object-glass (the rough disks of which were also
furnished by Messrs. Chance of Birmingham) exceeding in aperture
that of Mr. Cooke's by only one inch. This was finished and
mounted in November, 1873. Another instrument of similar size
and power was manufactured by Mr. Clark for the University of
Virginia. But these instruments did not long maintain their
supremacy. In 1881, Mr. Howard Grubb, of Dublin, manufactured
a still larger instrument for the Austrian Government—the refractor
being of twenty-seven inches aperture. But Mr. Alvan Clark was
not to be beaten. In 1882, he supplied the Russian Government
with the largest refractor telescope in existence—the object-glass
being of thirty inches diameter. Even this, however, is to be
surpassed by the lens which Mr. Clark has in hand for the Lick
Observatory (California), which is to have a clear aperture of three
feet in diameter. |
p.360 |
Since the above passage was written and in type, I
have seen (in September 1884) the reflecting telescope referred to
at pp. 357-8. It was
mounted on its cast-iron equatorial stand, and at work in the field
adjoining the village green at Bainbridge, Yorkshire. The
mirror of the telescope is 8 inches in diameter; its focal length, 5
feet; and the tube in which it is mounted, about 6 feet long.
The instrument seemed to me to have an excellent defining power.
But Mr. Lancaster, like every eager astronomer, is anxious for
further improvements. He considers the achromatic telescope
the king of instruments, and is now engaged in testing convex
optical surfaces, with a view to achieving a telescope of that
description. The chief difficulty is the heavy charge for the
circular blocks of flint glass requisite for the work which he
meditates. "That," he says, "is the great difficulty with
amateurs of my class." He has, however, already contrived and
constructed a machine for grinding and polishing the lenses in an
accurate convex form, and it works quite satisfactorily.
Mr. Lancaster makes his own tools. From the raw material,
whether of glass or steel, he produces the work required. As
to tools, all that he requires is a bar of steel and fire; his
fertile brain and busy hands do the rest. I looked into the
little workshop behind his sitting-room, and found it full of
ingenious adaptations. The turning lathe occupies a
considerable part of it; but when he requires more space, the
village smith with his stithy, and the miller with his water-power,
are always ready to help him. His tools, though not showy, are
effective. His best lenses are made by himself: those which he
buys are not to be depended upon. The best flint glass is
obtained from Paris in blocks, which he divides, grinds, and
polishes to perfect form.
I was attracted by a newly made machine, placed on a table in the
sitting-room; and on inquiry found that its object was to grind and
polish lenses. Mr. Lancaster explained that the difficulty to
be overcome in a good machine, is to make the emery cut the surface
equally from centre to edge of the lens, so that the lens will
neither lengthen nor shorten the curve during its production.
To quote his words: "This really involves the problem of the 'three
bodies,' or disturbing forces so celebrated in dynamical
mathematics, and it is further complicated by another quantity, the
'coefficient of attrition,' or work done by the grinding material,
as well as the mischief done by capillary attraction and nodal
points of superimposed curves in the path of the tool. These
complications tend to cause rings or waves of unequal wear in the
surface of the glass, and ruin the defining power of the lens, which
depends upon the uniformity of its curve. As the outcome of
much practical experiment, combined with mathematical research, I
settled upon the ratio of speed between the sheave of the lens-tool
guide and the turn-table; between whose limits the practical
equalization of wear (or cut of the emery) might with the greater
facility be adjusted, by means of varying the stroke and
eccentricity of the tool. As the result of these
considerations in the construction of the machine, the surface of
the glass 'comes up' regularly all over the lens; and the polishing
only takes a few minutes' work—thus keeping the truth of surface
gained by using a rigid tool."
The machine in question consists of a revolving sheave or ring, with
a sliding strip across its diameter; the said strip having a slot
and clamping screw at one end, and a hole towards the other, through
which passes the axis of the tool used in forming the lens,—the slot
in the strip allowing the tool to give any stroke from 0 to 1.25
inch. The lens is carried on a revolving turn-table, with an
arrangement to allow the axis of the lens to coincide with the axis
of the table. The ratio of speed between the sheave and
turn-table is arranged by belt and properly sized pulleys, and the
whole can be driven either by hand or by power. The sheave
merely serves as a guide to the tool in its path, and the lens may
either be worked on the turn-table or upon a chuck attached to the
tool rod. The work upon the lens is thus to a great extent
independent of the error of the machine through shaking, or bad
fitting, or wear; and the only part of the machine which requires
really first-class work, is the axis of the turntable, which (in
this machine) is a conical bearing at top, with steel centre
below,—the bearing turned, hardened, and then ground up true, and
run in anti-friction metal. Other details might be given, but
these are probably enough for present purposes. We hope, at
some future time, for a special detail of Mr. Lancaster's
interesting investigations, from his own mind and pen. |
p.369 |
The translations are made by W. Cadwalladr Davies,
Esq. |
p.376 |
This evidence was given by Mr. W. Cadwalladr Davies
on the 28th October, 1880. |
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