Year: 1887

page_text: Date of Application, 9th Mar., 1887
Complete Left, 9th Dec., 1887
Complete Accepted, 13th Jan., 1888
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 that kind or class of printing machinery known as
"perfecting" machines that is to say:-Machines which are designed to print upon
both sides of the paper in its passage through the same, and its chief object is to
improve that description of perfecting machines having large cylinders and in which
the paper is fed to the machine in single sheets in contradistinction to those known as
web printing machines, in which the paper is fed from a reel or drum.
The essential feature of my said invention is the employment of a cylinder, herein-
after called the additional cylinder, which is supported in suitable bearings in close
proximity to and parallel with the inner impression cylinder. The said additional
cylinder is one half the diameter of the impression cylinders and is provided with
suitable grippers to lay hold of the sheet at the proper moment and hold it while it
remains upon this cylinder, during which time another sheet is taken by the grippers
at the top of the impression cylinder.
The sheets of paper to be printed upon both sides are fed in succession to grippers
on the inner impression-cylinder from the feed-board and the impression having been
effected on the exposed side of the sheet in the usual manner the latter is carried
upward by the rotation of the impression cylinder until it comes in contact with the
grippers on the additional cylinder which grip the paper, and it is thus caused to
travel once around the said additional cylinder but when its edge comes round to
the impression cylinder again, grippers suitably secured upon the latter have in the
rotation thereof arrived at such a position that they will remove the sheet of paper
from the additional cylinder, and transfer it to the impression cylinder again along
the upper part of which it travels until it reaches the outer impression cylinder to
which it is transferred with the imprinted or plain side outwards. In this position it
travels downward upon this outer cylinder and receives the second impression and
then passes upward on the other side directly to the sheet-fliers.

page_text: The rotation of the cylinders is effected by suitable gearing in a well known manner
and need not be described. The impression cylinder nearest to the additional cylinder
is provided with two sets of grippers placed suitably for effecting the operation above
described.
In some cases, instead of placing the additional cylinder in close proximity to the
inner impression cylinder I may place it in a similar position against the outer
cylinder. The modifications with respect to the feeding arrangement and other details
necessary in this case will be apparent to any one understanding this class of
machinery.
By means of my invention I am enabled to considerably reduce the length of the
machine for the reason that the two impression cylinders are brought much nearer
together, moreover I entirely dispense with the use of tapes except the ordinary
backing-up tapes. I am also enabled to get or run a greater number of the inking
rollers over the full sized formo.
J
Mana 1007
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.

page_text: 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-machinos of the kind or class known as
perfecting machines, that is to say, machines which are designed to print upon both
sides of the paper in its passage through the same.
The chief object of the said invention is to improve the construction and increase
the efficiency of perfecting machines having large cylinders and in which the paper
is fed to the machine in single sheets in contradistinction to those known as web-
printing machines in which the paper is fed from a reel or drum.
According to my said invention I employ in conjunction with a printing machine
of the kind or class above mentioned, a supplementary or additional cylinder or time-
cylinder for receiving the paper after one side thereof has been printed and delivering
it so that the other side thereof may be printed. This cylinder I will hereinafter
term the "additional" cylinder. By the use of this additional cylinder I am enabled
to place the impression cylinders of a double-cylinder printing machine considerably
closer together than heretofore and thus reduce the length of the machine, I am also
enabled to run more inking rollers, and I can, if desired dispense with the use of
tapes, with the exception of the ordinary backing up tapes.
In the accompanying drawing I have shown how my said invention may be con-
veniently and advantageously carried into practice.
The drawing shows a side elevation of part of an ordinary perfecting printing
machine, the position of the cylinders and gearing being shown in dotted lines.
A is the bed of the machine B is the inner or first impression cylinder and C is the
outer or second impression cylinder. D is one of the side frames or brackets for
supporting the impression cylinders. E is the feed-board, F the sheet-flier cylinder
and G one of the sheet-fliers. H, I are two wheels of the gearing for driving the
machine.
In close proximity and parallel to the inner impression cylinder B I provide an
"additional cylinder a supported in suitable bearings 6 in brackets c bolted or
otherwise attached to the bed A and to the side frames or brackets D; or the supports
of the said bearings may form part of the same casting as the said side frames or
brackets. The diameter of the additional cylinder_a equal or about equal to one
half of the diameter of the impression cylinder B. The said cylinder is provided
with grippers such as are usually employed or with other suitable means for seizing
the sheet of paper at the proper moment and retaining it upon the said cylindor a.
The sheets of paper to be printed upon both sides are fed in succession to suitable
grippers on the inner impression-cylinder B from the feed-board E and the impression
having been effected on the exposed side of the sheet in the usual manner, the said

page_text: "
sheet is carried upward by the rotation of the inner impression cylinder B until it is
seized by the grippers or equivalent devices on the "additional" cylinder a; these
devices grip the paper and thus cause it to travel once around the said "additional "
cylinder. The edge of the paper then again comes in contact with the inner
impression cylinder B and is seized by grippers thereon and transferred from the
additional "cylinder a to the said inner impression cylinder B whereby it is carried
around until it reaches the outer impression cylinder C. It is then transferred to
this cylinder with the unprinted or plain sido outwards. In this position it travels
downward upon the said outer impression cylinder C and receives the second
impression and then passes upward on the other side of the said eylinder and is taken
off by the small cylinder F and delivered directly to the sheet-fliers G.
The rotation of the above described cylinders may be effected by any suitable
gearing. The inner impression cylinder or the impression cylinder nearest to the
additional cylinder a is provided with two sets of grippers suitably placed for effecting
the operation above described.
In some cases, instead of placing the additional cylinder a in close proximity to the
inner impression cylinder B, I place it in a similar position against the outer
impression cylinder C. The modifications with respect to the feeding arrangements
and other details necessary to carry out my said invention will be apparent to any
one understanding this class of machinery.
I sometimes employ tapes in place of grippers upon the "additional" cylinder a or
upon the impression cylinders B, C, for holding or retaining the sheets to be printed
whilst upon the said cylinders. In this case the additional cylinder a is not situated
in close proximity to one of the impression cylinders but is placed at a distance of
few inches therefrom.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed I wish it understood that
I claim:-
The employment, in a "perfecting" printing-machine, of an additional or supple-
mentary cylinder, substantially as, and for the purpose, set forth.
Dated this 7th day of December 1887.
W. S. FOORD.
Haseltine, Lake & Co.,
45, Southampton Buildings, London,
Agents for the Applicant.