The National tribune., 1882-03-18

realizes problem which has long puzzled
the ablest mechanicians. When the cylin,
ders have made half revolution, the central
margin of the printed paper comes opposite
the "creaser," which forces it into groove
in an opposite cylinder where it is held by
grippers which were previously opened by a
cam to receive it. The double edge of the
sheet thus formed is then carried around
until asecond creaser transfers it to grippers
IN third cylinder, which thus effects the
second fold, when it passes to n delivery
frame, where a circular knife with a serrated
edge, revolving
WITH INCoNCEIvABLE RAPIDITY,
cuts the paper in two, and flyer deposits
them on the delivery table in perfect order.
One marked feature in the machine is its
simplicity, doing away largely with tapes
and belts, pulleys, flying cams, switches, and
an endless train of fine gearing and small
wearing parts, which require constant watch
ing and oiling. All the principle movements
are rotary and consequently can be run at q
high rate of speed without arrangement.
THE FOLDING
is done by rotating creasers, as the knife re
wolves and cuts off the sheet, 80 the creaser
revolves and folds them. The folding de
vices can be changed to fold different sized
sheets and different number of folds All
the parts are easily got at, either for adjust
ing or repairing. 1t has superior distribu-
tion of ink, all the linking rollers being on
the top of the machine, in view of the press
man when standing on the floor, no steps
being required, and when the press is idle
they can all be raised, and the impression
put off at one time, thus preventing the
rollers from getting fat-sided.
A set of plates can be put on without NOV
ing the press. There is ample provision
made for set-off. The whole press, including
the roll and the delivery table, is about
twenty feet long, and stands five feet high;
and weighs with its attachments, the damp
ening and stereotyping machines, sixteen
tons. 1t has heavy iron bed plate built on
a stone foundation. All the shafts are of
steel and forced into their cylinders with a
pressure of twenty-five tons, besides being
keyed.
WHAT IT DOES.
No other machine in the world does such
work, no other machine combines
such compactness and simplicity. There are
fewer parts in the Scott machine than in any
other, yet it performs more maneuvres and
functions; and it seems destined
10 supersede all the noted fast printing ma
chimes now in vogue.
THE DAMPING MACHINE.
The machine used for dampening the
paper previous to printing (the paper having
10 be moistened before it is printed) was also
invented by Mr. Scott. The paper is wrapped
around core. a spindle is run through
his core and placed in bearings. A full roll |
If paper, as it comes from the mill, is placed |
opposite it, hung also in bearings; the |
rec end Of the paper is attached to the |
Empty core, the power turned on, and as the |
,aper begins to pass from the roll to the
ore fine spray of water from jet over
lead dampens the sheet just sufficiently for
he purpose of printing. The spools on
which the paper is wound are very ingeni-
usly controlled by friction, so that the rolls
re made perfectly true and even. The pro-
ess is very rapid and very pretty.
The economy of the new press in printing
9th sides of the paper at once, and in doing
IS own folding, cutting, and pasting, deliver
ng the papers all ready for mailing or dis
without employing extra work.
len-in fact, employing q less numl . of
len than were required under the old sys-
em to perform either one of these three
perations-is clearly manifest to ANYBODY.
saves the use of folders; it saves work.
,g one side at time; it expedites the busi-
ess of mailing; it enables us to publish
much larger paper at any time we desire
do so. But the greatest saving, and the
reatest necessity for fast press, are in the
,ving of time at the last moment. and
nabling the TRIBUNE to print the latest
ews up to the hour of going to press.
VISITORS TO THE PREss-RooM.
The fact that THE NATIONAL TRIRrNE
as the first journal published in Washing
N to introduce the Scott perfecting press
aturally attracted considerable attention ,
Id there were numerous visitors to the ,
restroom to witness its operations-Mem-
ITS of Congress, army officers, journalists, ]
i'd others-all of whom expressed their j
lmiration at the marvellous simplicity of ]
e machinery and the rapidity with which !
performed the work of printing, cutting, {
'sting, and folding the paper. We will /
Ike pleasure in showing to the readers of
HE TRIBUNE, upon the occasion of their /
sitting Washington, the operations of our
w press. I