Improvements in Printing Machines.
Year: 1890

page_text: Date of Application, 25th Mar., 1890
Complete Specification Left, 20th Dec., 1890-Accepted, 21st Feb., 1891
PROVISIONAL SPECIFICATION.
Improvements in Printing Machines.
I, WILLIAM SILVER FOORD, of Kinaston Works, Johanna Street, Lambeth,
in the County of Surrey, Manufacturer, do hereby declare the nature of this
invention to be as follows:-
My invention relates to printing machines of that kind or class known as
perfecting machines that is to say, machines which are intended to print upon
both sides of the paper during its passage through the said machines.
My said invention relates more especially to printing machines of this kind or
class wherein an inner and an outer impression cylinder situated some distance apart
are employed and comprises certain improvements hereinafter set forth.
An important feature in my said invention consists in the combination with the
inner impression cylinder of an additional or "time" cylinder the said additional or
"time" cylinder being placed preferably between the inner and outer impression
cylinders. I provide moreover suitable fliers for removing the sheets after printing.
In carrying my said invention into practice I provide an inner and outer
impression cylinder and an additional or time cylinder which is preferably
arranged in close proximity to the said inner impression cylinder, and between
the latter and the outer impression cylinder. Two other or supplementary
cylinders are moreover provided between the inner and outer impression cylinders
for conveying the sheets of paper after they have been printed upon on one side by
the inner impression cylinder to the outer impression cylinder from which they are
removed by means of suitable fliers. The above mentioned cylinders are supported
in suitable bearings provided in the frame of the machine.
The sheets of paper to be printed on both sides are fed to the turned off part of
the inner impression cylinder from a suitable feed board, and are carried round by
the said cylinder and delivered to the above mentioned additional or
"time"
cylinder. During the time the said additional or time cylinder is performing a
complete revolution the inner impression cylinder has rotated a sufficient distance
to bring its printing or impression surface into an operative position relatively to
the sheet upon the said additional or "time" cylinder. The said sheet is then
delivered from the said inner impression cylinder to the above mentioned supple-
mentary cylinders and passed on to the outer impression cylinder which prints upon
the other side thereof and delivers it in the usual manner to the fliers, by means of
which it is removed from the machine.
Suitable grippers actuated in any convenient manner are employed for holding or
retaining the sheets upon the said cylinders, or tapes may be employed for this
purpose.
The impression and other cylinders are driven in any well known manner.
Moreover although I have hereinbefore described a convenient and advantageous
method of carrying my said invention into practice it is obvious that I can some-
what modify the construction of my improved printing machine without however in
any way departing from the nature of my said invention. For instance the
herein before mentioned additional or "time" cylinder instead of being placed in
close proximity to the inner impression cylinder may be placed at a slight distance
therefrom.
23
In some instances the said additional or "time cylinder is arranged on the
outside of the inner impression cylinder in connection with any other suitable portio"
of the periphery thereof

page_text: In some cases the said time cylinder may be placed in connection with the outer
cylinder instead of m connection with the inner cylinder.
Dated this 25th day of March 1890.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Printing Machines.
I, WILLIAM SILVER FOORD, of Kinaston Works, Johanna Street, Lambeth,
in the County of Surrey, Manufacturer, do hereby declare the nature of this
invention and in what manner the same is to be performed to be particularly
described and ascertained in and by the following statement:
My invention relates to printing-machines of the kind or class known as
"perfecting machines wherein the paper, during its passage through the said
machines is printed upon both sides thereof.
My said invention relates more especially to printing machines of this kind or
class wherein an inner and an outer impression cylinder situated some distance
apart are employed.
An important feature of my said invention consists in the combination with the
inner impression cylinder of an additional or time cylinder co-operating there-
with in such a manner that I am enabled to use a flier outside the cylinders and to
thus dispense with the necessity for taking off the printed sheets from the space
between the cylinders. Another feature of my said invention is the arrangement
of inking rollers in the space between the cylinders thus ensuring the more effectual
inking of the formes.
In the accompanying drawing I have shown how my said invention may be
conveniently and advantageously carried into practice.
A is the base or support of the machine, B is the additional or "time" cylinder
thereof, C and D respectively the inner and outer impression cylinders and E, F
are supplementary cylinders hereinafter described.
The additional or "time" cylinder B is preferably arranged in close proximity to
the said inner impression cylinder C, and between the latter and the outer impression
cylinder D. The two supplementary cylinders E, F are situated between the inner
and outer impression cylinders and serve for conveying the sheets of paper from the
inner cylinder C after they have been printed on one side thereby to the outer
impression cylinder D by which they are printed upon the other side and from
which they are removed by means of suitable sheet-fliers G. H H represent the
inking rollers which are of ordinary construction but situated between the impression
cylinders in a very advantageous position this being rendered practicable by the use
of the "time" cylinder as shown.
The above mentioned cylinders are supported in suitable bearings A' provided in
the frame A of the machine.
25
The sheets of paper to be printed are fed first to the "turned off" portion of the
inner impression cylinder C, from a suitable feed board H, and are conveyed upon
the said turned off portion to the above mentioned additional or "time" cylinder B.
When the said additional or "time cylinder has performed a complete revolution
the inner impression cylinder has rotated a sufficient distance to bring its printing
or impression surface into an operative position relatively to the sheet upon the
said additional or "time cylinder." Suitable grippers then remove the sheet from
the time cylinder" B to the said operative surface of the cylinder C whereby it is
printed. The said sheet is then delivered from the inner impression cylinder C to
the reversing drums EF and thence to the other impression cylinder D, and after
being printed on its other side is taken off by the flier G.
Suitable grippers attached in any convenient manner are employed for holding

page_text: or retaining the sheets upon the said cylinders; or tapes may be employed for this
purpose.
The impression and other cylinders or drums are driven or rotated in any
convenient manner and the impression cylinders C D are geared together by
suitable toothed wheels C¹ D' whereby they are caused to move in unison with one
another.
Moreover although I have hereinbefore described a convenient and advantageous
method of carrying my said invention into practice it is obvious that I can some-
what modify the construction of my improved printing-machine without however in
any way departing from the nature of my said invention. For instance the position
of the additional or "time" cylinder relatively to the other parts of the machine
may be varied in any convenient manner for the purpose above specified.
i
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
First. In a printing machine, an additional or "time" cylinder arranged between
the impression cylinders for the purpose above specified.
Second. In a printing-machine the combination, with the impression cylinders,
and reversing drums arranged between the same, of an additional or "time" cylinder
for receiving the sheet from and returning it to the first impression cylinder, sub-
stantially as herein before described and for the purpose specified.
"time
"
Third. A printing machine which is provided with an additional or
cylinder, and with inking rollers arranged in the space between the impression
cylinders, substantially as, and for the purposes, set forth.
Dated this 20th day of December 1890.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.