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men of invention and industry-第54章

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In 1862 Mr。 Walter began in The Times office; with tools and

machinery of his own; experiments for constructing a perfecting

press which should print the paper from rolls of paper instead of

from sheets。  Like his father; Mr。 Walter possessed an excellent

discrimination of character; and selected the best men to aid him

in his important undertaking。  Numerous difficulties had; of

course; to be surmounted。  Plans were varied from time to time;

new methods were tried; altered; and improved; simplification

being aimed at throughout。  Six long years passed in this pursuit

of the possible。  At length the clear light dawned。  In 1868 Mr。

Walter ventured to order the construction of three machines on

the pattern of the first complete one which had been made。  By

the end of 1869 these were finished and placed in a room by

themselves; and a  fourth was afterwards added。  There the

printing of The Times is now done; in less than half the time it

previously occupied; and with one…fifth the number of hands。



The most remarkable feature in the Walter Press is its wonderful

simplicity of construction。  Simplicity of arrangement is always

the beau ideal of the mechanical engineer。  This printing press

is not only simple; but accurate; compact; rapid; and economical。



While each of the ten…feeder Hoe Machines occupies a large and

lofty room; and requires eighteen men to feed and work it; the

new Walter Machine occupies a space of only about l4 feet by 5;

or less than any newspaper machine yet introduced; and it

requires only three lads to take away; with half the attention of

an overseer; who easily superintends two of the machines while at

work。  The Hoe Machine turns out 7000 impressions printed on both

sides in the hour; whereas the Walter Machine turns out 12;000

impressions completed in the same time。



The new Walter Press does not in the least resemble any existing

printing machine; unless it be the calendering machine which

furnished its type。  At the printing end it looks like a

collection of small cylinders or rollers。  The first thing to be

observed is the continuous roll of paper four miles long; tightly

mounted on a reel; which; when the machine is going; flies round

with immense rapidity。  The web of paper taken up by the first

roller is led into a series of small hollow cylinders filled with

water and steam; perforated with thousands of minute holes。  By

this means the paper is properly damped before the process of

printing is begun。  The roll of paper; drawn by nipping rollers;

next flies through to the cylinder on which the stereotype plates

are fixed; so as to form the four pages of the ordinary sheet of

The Times; there it is lightly pressed against the type and

printed; then it passes downwards round another cylinder covered

with cloth; and reversed; next to the second type…covered roller;

where it takes the impression exactly on the other side of the

remaining four pages。  It next reaches one of the most ingenious

contrivances of the inventionthe cutting machinery; by means of

which the paper is divided by a quick knife into the 5500 sheets

of which the entire web consists。  The tapes hurry the now

completely printed newspaper up an inclined plane; from which the

divided sheets are showered down in a continuous stream by an

oscillating frame; where they are met by two boys; who adjust the

sheets as they fall。  The reel of four miles long is printed and

divided into newspapers complete in about twenty…five minutes。



The machine is almost entirely self…acting; from the pumping…up

of the ink into the ink…box out of the cistern below stairs; to

the registering of the numbers as they are printed in the

manager's room above。  It is always difficult to describe a

machine in words。  Nothing but a series of sections and diagrams

could give the reader an idea of the construction of this

unrivalled instrument。  The time to see it and wonder at it is

when the press is in full work。  And even then you can see but

little of its construction; for the cylinders are wheeling round

with immense velocity。  The rapidity with which the machine works

may be inferred from the fact that the printing cylinders (round

which the stereotyped plates are fixed); while making their

impressions on the paper; travel at the surprising speed of 200

revolutions a minute; or at the rate of about nine miles an hour!



Contrast this speed with the former slowness。  Go back to the

beginning of the century。  Before the year 1814 the turn…out of

newspapers was only about 300 single impressions in an hourthat

is; impressions printed on only one side of the paper。  Koenig by

his invention increased the issue to 1100 impressions。  Applegath

and Cowper by their four…cylinder machine increased the issue to

4000; and by the eight…cylinder machine to 10;000 an hour。  But

these were only impressions printed on one side of the paper。 

The first perfecting pressthat is; printing simultaneously the

paper on both sideswas the Walter; the speed of which has been

raised to 12;000; though; if necessary; it can produce excellent

work at the rate of 17;000 complete copies of an eight…page paper

per hour。  Then; with the new method of stereotypingby means of

which the plates can be infinitely multiplied and by the aid of 

additional machines; the supply of additional impressions is

absolutely unlimited。



The Walter Press is not a monopoly。  It is manufactured at The

Times office; and is supplied to all comers。  Among the other

daily papers printed by its means in this country are the Daily

News; the Scotsmam; and the Birmingham Daily Post。  The first

Walter Press was sent to America in 1872; where it was employed

to print the Missouri Republican at St。  Louis; the leading

newspaper of the Mississippi Valley。  An engineer and a skilled

workman from The Times office accompanied the machinery。  On

arriving at St。  Louisthe materials were unpacked; lowered into

the machine…room; where they were erected and ready for work in

the short space of five days。



The Walter Press was an object of great interest at the

Centennial Exhibition held at Philadelphia in 1876; where it was

shown printing the New Fork Times one of the most influential

journals in America。  The press was surrounded with crowds of

visitors intently watching its perfect and regular action; 〃like

a thing of life。〃  The New York Times said of it: 〃The Walter

Press is the most perfect printing press yet known to man;

invented by the most powerful journal of the Old World; and

adopted as the very best press to be had for its purposes by the

most influential journal of the New World。。。。  It is an honour to

Great Britain to have such an exhibit in her display; and a

lasting benefit to the printing business; especially to

newspapers。。。。  The first printing press run by steam was erected

in the year 1814 in the office of The Times by the father of him

who is the present proprietor of t
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