IMPROVEMENTS IN THE METHOD OP AND APPARATUS FOR TREATING OR PRESSING PAPER, PASTEBOARD, AND SIMILAR MATERIALS AFTER PRINTING ON THE SAME
Year: 1867

page_text: PROVISIONAL SPECIFICATION :left by Rowland Wood and Austin Wood
at the Office of the Commissioners of Patents, with their Petition, on the
8th May. 1867.
We, ROWLAND WOOD and AUSTIN WOOD, both of Parkfield Street,
Islington, in the County of Middlesex, and Gough Square, in the City of
London,, Type Founders, do hereby declare the nature of the said Invention
for "IMPROVEMENTS IN THE METHOD OP AND APPARATUS FOR TREATING OR PRESSING
PAPER, PASTEBOARD, AND SIMILAR MATERIALS AFTER PRINTING ON THE SAME,”
to be as follows:-
Heretofore after printing has been applied upon paper, pasteboard, and
similar materials it has been usual to treat the same in, the following manner
in order to remove the traces or impressions of the printing from the reverse
side of the sheet or piece on which the printing has been applied. A number
of such printed sheets or pieces, between each two of which a glazed board
is interposed are placed one over the other and the heap is placed between
two hot plates; also a standing press has been used; this process involves
considerable time and trouble and the results are irregular, insufficient,
inefficient, and unsatisfactory.
Whereas, according to our Invention, we employ a pair of revolving
rollers or cylinders, made truly smooth or polished on their surface and
heated by gas or by other heating agency; these rollers or cylinders are so
contrived as to be capable of nice or delicate adjustment with respect to each
other, so that they may be brought as near to or as far from each other as

page_text: desirable in order to accommodate the space between them to sheets or
pieces of any required thickness. The paper or other material to be treated
is fed between these rollers and their rolling pressure-aided by-the-agency of
heat removes from the reverse the impression of the typography applied on
the required surface. Moreover this operation imparts a gloss or finish to
the paper or material, and communicates an improved appearance to the
typography. Sometimes only one of the rollers may be heated and sometimes
we do not heat either roller, but subject the paper or material to cold pressure.
Sometimes only one roller is revolving or capable thereof. We can combine
our pressing rollers with a printing press or printing machinery, and can
actuate them by the driving power, which operates- the working parts of the
said printing press or machinery.
We construct as follows one arrangement of apparatus capable of being
worked by hand for the purposes of our Invention:-A pair of hollow rollers
are mounted in a frame; the surfaces of these rollers are ground, polished,
burnished, or made as perfectly true and accurate as practicable, so that
they may work together with nicety; gas or other, heating: medium is
supplied to the interior of the rollers. Sometimes we insert in the rollers a
wire gauze or perforated metal cylinder capable of being removed or with-
drawn to receive the direct contact of the flame. Motion is. communicated
to one of the rollers by a winch handle and transmitted to the other roller by
toothed wheels or other contrivances, but preferably by a worm wheel and
screw. The necessary adjusting pressure is applied to the rollers by a screw
bearing on the upper part of the top roller. Instead of hand power other
driving power may be used.
.