A short history of the printing press and of the improvements in printing machinery from the time of Gutenberg up to the present dayHoe, Robert
History
A short history of the printing press and of the improvements in printing machinery from the time of Gutenberg up to the present day
Hoe, Robert
Printing -- History; Printing machinery and supplies; R. Hoe & Company
“At the end of a long row of machinery stands the web press--a
massive and complicated construction, especially built by Hoe & Co.
for printing, cutting and folding the plain and advertising pages
of the ‘Century.’ Web presses for newspapers are common enough,
but this press has distinction as the first, and for three years
the only, web press used in this country, for good book work. At
one end of the machine is a great roll of paper more than two
miles long when unwound, and weighing about 750 pounds. As the
paper unwinds it passes first over a jet of steam which slightly
dampens and softens its hard surface and fits it for receiving
impressions, without leaving it wet or sodden. It passes under a
plate cylinder, on which are thirty-two curved plates, inked by
seven large rollers, which print thirty-two pages on one side.
Then it passes around a reversing cylinder which presents the
other side of the paper to another plate cylinder, on which are
thirty-two plates which print exactly on the back the proper pages
for the thirty-two previously printed. This is done quickly--in
less than two seconds--but with exactness. But the web of paper is
still uncut. To do this it is drawn upward under a small cylinder
containing a concealed knife, which cuts the printed web in strips
two leaves wide and four leaves long. As soon as cut the sheets
are thrown forward on endless belts of tape. An ingenious but
undetectable mechanism gives to every alternate sheet a quicker
movement, so that it falls exactly over its predecessor, making
two lapped strips of paper. Busy little adjusters now come in
play, placing these lapped sheets of paper accurately up to a
head and a side guide. Without an instant of delay down comes
a strong creasing blade over the long center of the sheet, and
pushes it out of sight. Pulleys at once seize the creased sheet
and press it flat, in which shape it is hurried forward to meet
three circular knives on one shaft, which cut it across in four
equal pieces. Disappearing for an instant from view, it comes out
on the other side of the upper end of the tail of the press in
the form of four folded sections of eight pages each. Immediately
after, at the lower end of the tail of the press, out come four
entirely different sections of eight pages each. This duplicate
delivery shows the product of the press to be at every revolution
of the cylinder sixty-four pages, neatly printed, truly cut, and
accurately registered and folded, ready for the binder. Two boys
are kept fully employed in seizing the folded sections and putting
them in box trucks, by which they are rolled out to the elevator,
and on these sent to the bindery. This web press is not so fast as
the web press of daily newspapers, but it performs more operations
and does more accurate work. It is not a large machine, nor is
it noisy, nor does it seem to be moving fast, but the paper goes
Public-domain text, read in full here on John Shaqi.
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