Little Falls transcript. [volume] (Little Falls, Morrison County, Minn.) 1876-1894, 1891-02-27
HOW PLATES ARE MADE.
WHAT sTEn1ovyr,%o V AND NOW
II % AccoMpl sos4Go.

- -
= II % ACCOMPLISHED.
q E..b,ss Large rspsrs n Prtas nss-
dseds 81 Thsusasas 81 Copies T. . No.
0srksbIy short Tfas-rAs Pspiss 1la-
che ssd ths Clay Pssesss.
What 10 stereesyptnx and whss SO IL
advAntaResl Il j. ~ .-,
The common idsa Of sesseosyping paper
y thai the type II put through some pro-
eess tor the purpose Of facilitating the
printing. The faet -, sssssosyping Il iistls
oore than duplicatisg The type. The
termx are reproduced In one solid pisoa.
hence the word. Stereotype, solid copy.
The types are used tor patterns only.
while the printing - done entirely from the
plates Thus the typs Il subjected to very
little wear, aud BY the use Of large mum.
Der Of plates the papers are printed with
great rapi,iity. II typs was directly used
to print The Sun, Herald. Or World. . new
dress" would 10 required every day The
wear and tear Of two q three hundred
thousand impressions would destroy che
est type in the world.
/ Not oniy that. but In order to get such .
paper ~ The Sunday Sun. Heralslor World
psinted from the typs - rapidly - from
plates It woaid require all the competitors
Ia the city 70 vet up one edition.
There are few presses In uso on which
the papers are printed directly from The
| type in the form Of q curve. These AZ
called type revolvsrs' or type webs. "
They arr very complicated and are ted By
| = wen or roll Of paper, the same - . per.
fectinR preas. printing both sides. The
payers are matte up IN the form Of turtles.
and. Of course. the press carries only one
+et Ut time. While these pre.~es do
fairly rapid work, they cannot COMPANY
With the persecting presses. What Il
| gained by eliminating the work Of ateFeo
tipping II lo<t by the wear Of the type; b.
sides. for papers Of large circulation they
| Sre OF no use whatever
| PREPARING THE NArEIx
BIZ newspaper stereotypiny ] mean tn
only modern way Of producing stereotype
piate~ for newspaper use. There il praeti
cAlly only one process in use, and that
the papier mache process. Tho old plasts,
OF paris and clay processes are no, nov
used except in rare caves whore some spe
ctai result Is aimed At The old ways AZ,
too slow for newspaper, and have beet
superseded by eIectrotyping for book work
Electrotyping furnishes . copper facot
plate and perfectly reproduoes fine engrsv
'ngS Stereotypinx by Whatever process
can do neither.
| The only place to my knowledge whes,
either OF the old processes Is now used t.
any extent In this country Is the American
Press association in this city. All il
| pages. except the news pages. are drs
stereosypod by the clay process. By thi
means they obeain one deep plate, from
which thereafter large number Of moldl
srr taken BY the papier-mache process
The latter, now 20 universally employed
wns invented some sorty-five years ago 1,
Paris This process is practically divide.
into four par*s-matrix making, moldin2
casting and finishing.
Mstrix making il simply preparing th
| pApier mache. aud must be done in I'd vanc
Of the process proper The paper used II 0
two kinds. biottinx and tissue. manufact
ured expressly for stereotyping. The blot
ting paper is first danpeaed properly, IN,
thr rnatrix $50 called} is usually made b.
pa.ting together TWO sheets of biottinX TO
. back and four sheets Of tissue for facc
The tissues are carefully smonthed down
either by hand or with roller. The past
useo in Of q special kind. and is prepared b.
the stereotyper before he begins his day
work
! TAKING THE IMPRESSION.
/ When Il page is ready to be stereotype,
the prepared matrix is laid on the form
fscr downward. and either beaten In witt
large brushes or passed under u heAv
roller. in order to force the dampene
paper into the spaces OF the type and there
by take an impression of the page. Th
form. with the matrix still on top, is the
placed under the platen Of a steam heate
drying press. resembling large copyia
press. Soft blankets are laid on the ma1ri
in order to absorb the moisture. the pks
il screwed down. and III from three to IT,
minutes the paper mold is dry. The forr
aud matrix are then taken from under til
press. the form l,einy returned to tho con
posing room for distribution.
The mAtrix, now being dry aod nexibl,
- placed in the curved casting box and tn
molten metal poured In. The box
cooled by water. and in few seconds tn
rough plate In thrown out ready for til
6nisher. The TOP, or tail end, Is no,
sawed Of by a peculiar saw. the piAts
trimmed. chiseled and finally shaved O
the back. in order TO give it an even thiel
| ue0Ss "ucU IL II IcAsuy loF tkJo pToAo.
The casting and finishing are repeats
fer every plate needed, but only one mol
or matrx is required for each page. A
each form is received from the compesin
room it il immediasely stsreoeyped, IN
thus the way is made clear for the u,
page. which u held back tor the lasel
news
The time Lost BY stereosyping IL ther,
fore reduced 70 the minimum, and in fss
II Is almost nothing. The last page {
''searter" II invariably put through with
rush. The masrix u beaten In aud dris.
the plates cast and finished In wonderful
" short time All this Is done and th
! 0Est press started In about the same tim
It takes 70 start press when the printin
h done from the type itself. Each SUI
eeedinR PRESS h quickly started, and in
few minutes thsss wonderful machines .,
throwing ont the printed sheets BY ii
thousand or million, according to Il
imagination, Of the circulation ed;sor.-E
win Arlington in jonrualist.