IMPROVEMENTS IN PRINTING MACHINES
Year: 1873

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 7th November 1873, and dated the 9th May 1873.
PROVISIONAL SPECIFICATION left by the said David Payne at the
Office of the Commissioners of Patents, with his Petition, on the
9th May 1873.
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 typographic or letter-press, and lithographic
printing machines, and more especially to that class or kind which have
a self-acting delivery by means of a "flyer," and the object (of my

page_text: improvements) is to render such machines capable of printing and
delivering either large or small sheets without having to make alterations
for the purpose; also to facilitate or render them more convenient for the
process of "making ready." This object I effect by employing a taking-
off cylinder with rollers and tapes, which I mount in lever arms hinged
to the framework in such manner as that the said taking-off cylinder
may be readily removed clear of or from contact with the impression
cylinder (which is without tapes), so that the attendant may get to any
part of its surface. The flyer is also operated or caused to oscillate
by means of a stud fixed eccentrically in the usual cam wheel, entering
into and acting on a suitable cam groove formed in or attached
to the rack rod, which communicates motion to the flyer, giving a
positive motion in both directions, thus dispensing with the springs now
in use; the said cam groove being formed so as to produce a dwell, or
allow the "flyer" to remain stationary for a suitable time to receive the
printed sheets from the tapes, and also at the delivery, and thereby
holding the sheets upon the table or platform until the air has escaped
from underneath them.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said David Payne in the Great Seal Patent Office on
the 8th November 1878.
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 Ninth day of May, in the year
of our Lord One thousand eight hundred and seventy-three, in the
thirty-sixth 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, administrators, and assigns,
or such others as I, the said David Payne, my executors, adminis-
trators, and assigns, should at any time agree with, and no others, from

page_text: time to time and at all times thereafter during the term therein expressed,
should and lawfully might make, use, exercise, and vend, within the
United Kingdom of Great Britain and Ircland, the Channel Islands,
and Isle of Man, an Invention for "IMPROVEMENTS IN PRINTING MACHINES,"
upon the condition (amongst others) that I, the said David Payne, my
oxccutors or administrators, 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
Seal 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
the nature of my said Invention, and in what manner the same is to
be performed, to be particularly described and ascertained in and by the
following statement and accompanying Sheets of Drawings :-
This Invention relates to typographic (or letter-press), and lithographic
printing machines, and more especially to that class or kind which have
a self-acting delivery by means of a "flyer," and the object of my
improvements is to render such machines capable of printing and
delivering either large or small sheets without having to make alterations
for the purpose; also to facilitate or render them more convenient for the
process of "making ready." This object I effect by employing a taking-
off cylinder with rollers and tapes, which I mount in lever arms hinged
to the framework in such manner as that the said taking-off cylinder
may be readily removed "clear of," or from contact with the impression
cylinder (which is without tapes), so that the attendant may get to or
have free access to any part of its surface. The "flyer" is also operated
or caused to oscillate by means of a stud fixed eccentrically in the usual
cam wheel entering into and acting in a suitable cam groove formed in
or attached to the rack rod, which communicates motion to the flyer,
giving a positive motion in both directions, thus dispensing with the
springs now in use, the said cam groove being formed so as to produce a
dwell, or allow the "flyer" to remain stationary for a suitable time to
receive the printed sheets from the tapes, and also at the delivery, and
thereby holding the sheets upon the table or platform until the air has
escaped from underneath them.

page_text: A is the "taking-off" cylinder, with rollers and tapes, which I mount
and carry by means of the lever arms B; these arms are hinged at C to
the framework D, so that the cylinder A may readily be removed from
contact (as shewn by dotted lines) with the impression cylinder E
affording free access to any portion of the said cylinder's surface. The 1
flyer F is operated or caused to oscillate through the agency of the
stud G fixed in the cam wheel H, the stud G being received within a
cam groove formed in or by the end of the rack rod J, which rod by
means of the rack M thereon engages with and rotates the pinion N on
the shaft P, which shaft carries the flyer F; the pinion N is thrown out
of gear with the rack when the taking-off cylinder is in its raised.
position.
It will be clear that at each revolution of the cam wheel H one portion'
of its revolution will, through the stud, rack rod, and pinion on the
flyer's shaft, move and place the flyer forward ready to receive a sheet,
the other half revolution of the said cam wheel will return the flyer to
its original position on the table S. (as shewn at Fig. 1), the groove J.
being of such form (shewn correctly in the Drawings) as to produce a
"dwell" of the flyer, that is to say, the flyer will remain stationary
until the printed sheets are received from the tapes, and also at the 1
delivery, holding these sheets upon the table or platform until the air
escapes.
Having thus fully described the nature and particulars of this my
said Invention, together with the manner in which the same is to be or
may be performed or carried into practical effect, I would have it.
understood that I claim as my Invention,―
The use and employment of the lever arms B, as and for the purpose
heroin fully described and illustrated.

page_text: The apparatus comprising the cam groove and actuating pin for
operating the rack rod, as and for the purpose herein fully described and
shewn in the Drawings.
In witness whereof, I, the said David Payne, have hereunto set
my hand and scal, this Sixth day of November, in the year of
our Lord One thousand eight hundred and seventy-three.
Witness,
WALTER BRIERLEY,
Tasker & Brierley,
Patent Agents,
DAVID PAYNE. (L.S.)
Halifax, Bradford, & Blackburn.