Alexandria gazette & daily advertiser. [volume] (Alexandria [Va.]) 1817-1822, 1818-03-27

nj the iB'n JdnudIJ -
TIE PATENT COMPLETING PRINTING
MACHINE.
In our Lest number we mentioned that
f'ha t.i,e,a,Y Glzstte was tie only Jour
mai in the world printed by this most all
nirst'e machine; and as q matter Of eX-
tram,!;nsry mechanical interest we sub
join brIef account Of the process by
which about thsusand OF these large
sheets arc per tour P,odrced by this ma
gical invenliOa. The beauty of the move
men's, their rapidity, their precision are
advanced To the imagination by the IA
lure ct he operation they perform: il
looks as &c mind aud net matter were at
work. We see boy lay white sheet
of paper upon the web (here dcseribed)
aud while we tell three, IL is received BY
smother boy, as flour comes from the
mill, 4 perfect newspaper, printed on
both sides, with degree OF unequalled
force, clearnesS anu correctness. A
more gratifying scene than the action OF
this piece al mechanism, it is impossible
10 CONCEIVE il seems the very climax OF
human ingruuity aud II ever a thing Of
the Kind merited public admiration and
acknowledgment, We hesitate not TO say
that it is this wonderful appaHatus.-
Printed IN the house where Stmuel John
sou lived and died, by msehiue as Gu
rious ant unique rs ms endOwmentS were
stupend0us and uHTiyalled: the IIterary
Gazette now presents at least two Incl
al 30 has
which have been already honOred with
such cheering encouI aSemeat.
We request tie notice OF our readers
10 our page as d specimen OF tie art of
printing by the singular means devised
and perfected as below explained.
About zen years ago Mr.. BeQsley was
applied to by NJ, Kopig, Saxon, WHO
submitted to hin proposals for jui ing
him in The prosecution Of a plan Tor i'm
proving the commoD printing press, which
consisted C!.:eRy in moving he press BY
machinery. by which the labcr of one
man might b. saved. A press was form
ed or tbs plan; but the result was so
unsatisfactory as 20 induce the rejection
81 i, altogether. Ii will readily be con-
eeiyed that this resolution was not takeH
I'LL after numberIess experiments had
rendered the prospect Of sIcce's hope
= less. The idea oe cyl:Ed ical imp ession
now presented it'elf, which had bceA az
temptsd By others without success; and
mGch;re on this construction was COM
plet"d, after eucou"teEing grea, difficult
ties, al me close &C the year 1919. 1t
nav b. proper here 10 Introduce Nh out
line Of it' operation
The form IT, ? the composed tvpes) Is
placed TN carriage or coffin, which Is
constantly Passing under the mixing cy-
hnders. Ubfdiniag Goa; of ink in ia in"
gre's and egress; these cylinders have a
laerl sad rotary motion, for the pur-
pose oG gCna'iZiag the ink before IT is
CO omu,icated To the form. After the
form /, thoroughly mixed, il passes under
the p'in'irg cyIi,der, gu which the pape'
rs laid, where it receives re impression
and theuce delivers itself into the hands
Of tie boy who waits 10 receive it. This
is termed single machine Sy the as
si,tance at two BOYS It prints T60 sheets
on ere side pei hour. As despatch. how
ever, is Of the utmost importance to a
newspaper, II was deemed advisable 70
construct what il called double ma
chine. This differs in no respect from
ths' above described, excepting the adj
dit,oa Of a second printing cylinder, BY
Which means, with the assistance OF four
boys, llC0 sheets are printed within the
hour on one side The machines used for
printing the Times new spaper are on this
pan, and have now been constantly in
use since November 1914 Af,er the
Times machines were constructed, the
grand Improvement Of the Completing
.aachire was suggested. so called for its
delivering the sheet printed on both sides.
II has a double linking aud printing appa-
ratus, with Two carriages OF collins, each
large enough 10 admit double denny form
Sd! nv FL inches. The paper is laid on
an endless web. called the feeder, which
IavOlves at intervals thence the sheet
passes into TIE machine, and is elected
in irw seconds printed on cath sides.
~ this means 900 sheets are struck III
N an heur, printed On both sides, or 1900
impressions; it the double sized paper
he used, 5000 single impressions. Two
bays and an OVer-loOker 6rs all the assist
snce requisite. and steam engine of
ons horse power is sufficient force TO i'm
pcl Il.
The Pa'entecs must feel a Just pride in
the completion of such ah srluouS under
tskrg, alter 80 mary years OF labor and
expense; it is not the least CRAFTY ing
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