IMPROVEMENTS IN PRINTING MACHINES
Year: 1874

page_text: LETTERS PATENT to David Payne, of Otley, in the County of York,
Printing Machine Maker, for the Invention of "IMPROVEMENTS IN
PRINTING MACHINES."
Scaled the 18th September 1874, and dated the 21st March 1874.
PROVISIONAL SPECIFICATION left by the said David Payne at the
Office of the Commissioners of Patents, with his Petition, on the
21st March 1874.
I, DAVID PAYNE, of Otley, in the County of York, Printing Machine
Maker, do hereby declare the nature of the said Invention for "IM-
PROVEMENTS IN PRINTING MACHINES," to be as follows:-
This Invention relates to that class of printing machinery having only
one impression cylinder, but with two feeds, or wherein paper to be
printed is fed or supplied on both sides of the said cylinder, which has a
rocking or a partial rotary motion, and having two sets of grippers or
holding instruments, so that a sheet of paper is fed and printed at each
stroke or alternate back and forward movement.

page_text: The object of my improvements is to render-sucli machines adaptable
for the printing of different sizes of sheets, and this is effected by having
two adjustable jaws fitted in the shell of the cylinder, cach jaw being
truc or even with the surface of the said cylinder, and carrying one set
of grippers. These jaws are so fitted and fastened as to be readily
loosed, moved laterally, and fastened again to extend or contract the
circumference or distance on the surface of the cylinder between one set
of grippers and another, different sizes of dovetail slips or filling up
pieces being used to introduce between the said jaws and the fixed shell
or body of the cylinder, such said slips being also made truc or even with
the outer surface of the cylinder.
The crank pin which gives reciprocatory motion to the type or printing
surface is fixed in a slot or slots of the driving wheel or wheels, and
adjusted or set to suitable positions therein by screws, so that the stroke
of the type bed can be regulated or adjusted according to the extent of
surface of the cylinder in use.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said David Payne in the Great Seal Patent Office
on the 21st September 1874.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, DAVID
PAYNE, of Otley, in the County of York, Printing Machine Maker, send
greeting.
WHEREAS Her most Excellent. Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-first day of March, in the year
of our Lord One thousand eight hundred and seventy-four, in the a
thirty-seventh year of Her reign, did, for Herself, Her heirs and
successors, give and grant unto me, the said David Payne, Her
special licence that I, the said David Payne, my executors, admi-
nistrators, and assigns, or such others, as I, the said David Payne,
my executors, administrators, and assigns, should at any time agree
with, and no others, from time to time and at all times there-
after during the term therein expressed, should and lawfully might
make, use, exercise, and vend, within the United Kingdom of Great
Britain and Ireland, the Channel Islands, and Isle of Man, an

page_text: Invention for "IMPROVEMENTS IN PRINTING MACHINES," upon the condition
(amongst others) that I, the said David Payne, my executors or admi-
nistrators, by an instrument in writing under my, or their, or one of
their hands and seals, should particularly describe and ascertain the
nature of the said Invention, and in what manner the same was to be
performed, and cause the same to be filed in the Great Scal Patent Office
within six calendar months next and immediately after the date of the
said Letters Patent.
NOW KNOW YE, that I, the said David Payne, do hereby declare tho
nature of my said Invention, and in what manner the same is to bo
performed, to be particularly described and ascertained in and by the
following statement and accompanying Sheet of Drawings (that is to
say) :—
This Invention relates to that class of printing machinery having only
one impression cylinder, but with two feeds, or wherein paper to be
printed is fed or supplied on both sides of the said cylinder, which has a
rocking or a partial rotary motion, and having two sets of grippers or
holding instruments, so that a sheet of paper is fed and printed at each
stroke or alternate back and forward movement.
The object of my improvements is to render such machines adaptable
for the printing of different sizes of sheets, and this is effected by having
two adjustable jaws fitted in the shell of the cylinder, cach jaw being
truc or even with the surface of the said cylinder, and carrying one set
of grippers. These jaws are so fitted and fastened as to be readily
loosed, moved laterally, and fastened again to extend or contract the
circumference or distance on the surface of the cylinder between one set
of grippers and another, different sizes of dovetail slips or
filling up
picces" being used to introduce between the said jaws and the fixed
shell or body of the cylinder, such said slips being also made truc or
even with the outer surface of the cylinder.
"
The crank pin which gives reciprocatory motion to the type or printing.
surface is fixed in a slot or slots of the driving wheel or wheels, and
adjusted or set to suitable positions therein by screws, so that the stroke
of the type bed can be regulated or adjusted according to the extent of
surface of the cylinder in use.
In order that the Invention may be more clearly understood I havê

page_text: Fig. 1 is a sectional end elevation of a printing machine cylinder
constructed according to my Invention; Fig. 2 is a front view of same;
and Fig. 3 is an end elevation partly in section shewing the end plate
attached thereto.
paper.
A, A, are the adjustable jaws carrying the grippers B, B. The jaws A
rest upon the surface C of the cylinder, and as they are moved nearer to
or further from each other they adapt the grippers to different sizes of
The spaces between the jaws and the outer surface of the
cylinder are filled up with dovetailed pieces of iron C¹, which are
segments of a circle of the same diameter as the cylinder. The jaws
are fastened to the surface C by means of screws D, and each jaw has a
tongue or projecting piece E which fits into a groove in a plate F, which
wlien the jaws are adjusted is fitted on to the end of the cylinder and
keeps all secure. The plate is secured by screws G.
Fig. 4 shews the driving wheel with adjustable crank pin H, the
adjustment being secured by the screw J.
Having thus described the nature of this my said Invention, and
shewn by Drawings how the same is to be performed or carried into
practise, I would have it understood that I do not confine myself to the
precise details of construction as herein shewn, but what I claim as my
Invention is, the construction of cylinders whereby the printing surface
on the circumference thereof is extended or contracted, substantially as
shewn and described.
In witness whereof, I, the said David Payne, have hereunto set my
hand and seal, this Nineteenth day of September, in the year of
our Lord One thousand eight hundred and seventy-four.
Witness,
J. W. TASKER,
Patent Agent,
Halifax and Bradford.
DAVID PAYNE. (L.S.)