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!!!!隆堋響頼��紗秘慕禰厮宴和肝写偬堋響��




Walter�察�for The Times。  Other English newspaper proprietorsboth

in London and the provinceswere supplied with the machines�察�as

many as thirty´five having been imported from America between

1856 and 1862。  It may be mentioned that the two ten´cylinder

Hoes made for The Times were driven at the rate of thirty´two

revolutions per minute�察�which gives a printing rate of 19��200 per

hour�察�or about 16��000 including stoppages。



Much of the ingenuity exercised both in the Applegath and Hoe

Machines was directed to the ;chase�察─�which had to hold securely

upon its curved face the mass of movable type required to form a

page。  And now the enterprise of the proprietor of The Times

again came to the front。  The change effected in the art of

newspaper´printing�察�by the process of stereotypes�察�is scarcely

inferior to that by which the late Mr。 Walter applied steam´power

to the printing press�察�and certainly equal to that by which the

rotary press superseded the reciprocatory action of the flat

machine。



Stereotyping has a curious history。  Many attempts were made to

obtain solid printing´surfaces by transfer from similar surfaces��

composed�察�in the first place�察�of movable types。  The first who

really succeeded was one Ged�察�an Edinburgh goldsmith�察�who�察�after

a series of difficult experiments�察�arrived at a knowledge of the

art of stereotyping。  The first method employed was to pour

liquid stucco�察�of the consistency of cream�察�over the types�察�and

this�察�when solid�察�gave a perfect mould。  Into this the molten

metal was poured�察�and a plate was produced�察�accurately resembling

the page of type。  As long ago as 1730�察�Ged obtained a privilege

from the University of Cambridge for printing Bibles and

Prayer´books after this method。  But the workmen were dead

against it�察�as they thought it would destroy their trade。  The

compositors and the pressmen purposely battered the letters in

the absence of their employers。  In consequence of this

interference Ged was ruined�察�and died in poverty。



The art had�察�however�察�been born�察�and could not be kept down。  It

was revived in France�察�in Germany�察�and in America。  Fifty years

after the discovery of Ged�察�Tilloch and Foulis�察�of Glasgow��

patented a similar invention�察�without knowing anything of what

Ged had done�察�and after great labour and many experiments�察�they

produced plates�察�the impressions from which could  not be

distinguished from those taken from the types from which they

were cast。  Some years afterwards�察�Lord Stanhope�察�to whom the art

of printing is much indebted�察�greatly improved the art of

stereotyping�察�though it was still quite inapplicable to newspaper

printing。  The merit of this latter invention is due to the

enterprise of the present proprietor of The Times。



Mr。 Walter began his experiments�察�aided by an ingenious Italian

founder named Dellagana�察�early in 1856。  It was ascertained that

when papier´mache matrices were rapidly dried and placed in a

mould�察�separate columns might be cast in them with stereotype

metal�察�type high�察�planed flat�察�and finished with sufficient speed

to get up the duplicate of a forme of four pages fitted for

printing。  Steps were taken to adapt these type´high columns to

the Applegath Presses�察�then worked with polygonal chases。  When

the Hoe machines were introduced�察�instead of dealing with the

separate columns�察�the papier´mache matrix was taken from the

whole page at one operation�察�by roller´presses constructed for

the purpose。  The impression taken off in this manner is as

perfect as if it had been made in the finest wax。  The matrix is

rapidly dried on heating surfaces�察�and then accurately adjusted

in a casting machine curved to the exact circumference of the

main drum of the printing press�察�and fitted with a terra´cotta

top to secure a casting of uniform thickness。  On pouring

stereotype metal into this mould�察�a curved plate was obtained��

which�察�after undergoing a certain amount of trimming at two

machines�察�could be taken to press and set to work within

twenty´five minutes from the time at which the process began。



Besides the great advantages obtained from uniform sets of the

plates�察�which might be printed on different machines at the rate

of 50��000 impressions an hour�察�or such additional number as might

be required�察�there is this other great advantage�察�that there is

no wear and tear of type in the curved chases by obstructive

friction�察�and that the fount�察�instead of wearing out in two

years�察�might last for twenty�察�for the plates�察�after doing their

work for one day�察�are melted down into a new impression for the

next day's printing。  At the same time�察�the original type´page��

safe from injury�察�can be made to yield any number of copies that

may be required by the exigencies of the circulation。  It will be

sufficiently obvious that by the multiplication of stereotype

plates and printing machines�察�there is practically no limit to

the number of copies of a newspaper that may be printed within

the time which the process now usually occupies。



This new method of newspaper stereotyping was originally employed

on the cylinders of the Applegath and Hoe Presses。  But it is

equally applicable to those of the Walter Press�察�a brief

description of which we now subjoin。  As the construction of the

first steam newspaper machine was due to the enterprise of the

late Mr。 Walter�察�so the construction of this last and most

improved machine is due in like manner to the enterprise of his

son。  The new Walter Press is not�察�like Applegath and Cowper's��

and Hoe's�察�the improvement of an existing arrangement�察�but an

almost entirely original invention。



In the Reports of the Jurors on the ;Plate�察�Letterpress�察�and

other modes of Printing�察─�at the International Exhibition of

1862�察�the following passage occurs�此 �It is incumbent on the

reporters to point out that�察�excellent and surprising as are the

results achieved by the Hoe and Applegath Machines�察�they cannot

be considered satisfactory while those machines themselves are so

liable to stoppages in working。  No true mechanic can contrast

the immense American ten´cylinder presses of The Times with the

simple calico´printing machine�察�without feeling that the latter

furnishes the true type to which the mechanism for newspaper

printing should as much as possible approximate。;



On this principle�察�so clearly put forward�察�the Inventors of the

Walter Press proceeded in the contrivance of the new machine。  It

is true that William Nicholson�察�in his patent of 1790�察�prefigured

the possibility of printing on ;paper�察�linen�察�cotton�察�woollen��

and other articles�察─�by means of type fixed on the outer surface

of a revolving cylinder�察�but no steps were taken to carry  his

views into effect。  Sir Rowland Hill also�察�before he became

connected with Post Office reform�察�revived the contrivance of

Nicholson�察�and referred to it in his patent of 1835 ��No。  6762����

and he also proposed to use continuous rolls of paper�察�which

Fourdrinier and Donkin had made practicable by their invention of

the paper´making machine about the year 1804�察�but both

Nicholson's and Hill's patents remained a dead letter。��2��



It may be easy to conceive a printing machine�察�or even to make a

model of one�察�but to construct an actual working printing press��

that must be sure and unfailing in its operations�察�is a matter

surrounded with difficulties。  At every step fresh contrivances

have to be introduced�察�they have to be tried again and again��

perhaps they are eventually thrown aside to give place to new

arrangements。  Thus the head of the inventor is kept in a state

of constant turmoil。  Sometimes the whole machine has to be

remodelled from beginning to end。  One step is gained by degrees��

then another�察�and at last�察�after years of labour�察�the new

invention comes before the world in the form of a practical

working machine。



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

machinery of his own�察�experiments for constructing a perfecting

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

from sheets。  Like his father�察�Mr。 Walter possessed an excellent

discrimination of character�察�and selected the best men to aid him

in his important undertaking。  Numerous difficulties had�察�of

course�察�to be surmounted。  Plans were varied from time to time��

new methods were tried�察�altered�察�and improved�察�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�察�and a  fourth was afterwards added。  There the

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

previously occupied�察�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�察�but accurate�察�compact�察�rapid�察�and economical。



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

lofty room�察�and requires eighteen men to feed and work it�察�the

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

or less than any newspaper machine yet introduced�察�and it

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

an overseer�察�who easily superintends two of the machines while at

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

sides in the hour�察�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�察�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�察�tightly

mounted on a reel�察�which�察�when the machine is going�察�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�察�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�察�drawn by nipping rollers��

next flies through to the cylinder on which the stereotype plates

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

The Times�察�there it is lightly pressed against the type and

printed�察�then it passes downwards round another cylinder covered

with cloth�察�and reversed�察�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�察�b

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