A Perfecting Rotary Printing Machine for General Book-work.
Year: 1891

page_text: Date of Application, 19th June, 1891
Complete Specification Left, 3rd Feb., 1892-Accepted, 5th Mar., 1892
PROVISIONAL SPECIFICATION.
A Perfecting Rotary Printing Machine for General Book-work.
EDWARD CHARLES KINGSNORTH 81 Lavender Hill, Clapham Junction, S. W.
Practical Printer do hereby declare the nature of this invention to be as follows:-
The machine will consist of four cylinders, two large and two small. The small
cylinders can be covered with blankets or sheets, to form hard or soft impression.
The type is placed half round the large cylinders, and the other half of the
cylinders are used as inking slabs. The ink is supplied from a ductor at the end of
each of the large cylinders from which will be vibrating rollers to convey the ink,
from the ductors on to the large cylinders, each side of the large cylinders will be
four inking rollers, (or more if required) which will take the ink off the slabs, and
deposit it on the type.
The paper will be laid on the small cylinder, which is called the inner form
impression cylinder, and pass round and print one side, from the type on the inner
form large cylinder, then transfer by gripper motion on to the outer form impression
cylinder, and print the other side from the type on the outer form large cylinder,
then will pass from the outer form cylinder, into tapes, which will carry the sheet
up straight, then will run down again on to a flyer which is called taking off
apparatus, the flyer will turn the sheet over, and lay it on to a board.
A circular cutter can be used to cut the sheet, as it passes through the tapes if
required.
Dated this 19th day of Lumo 1801
EDWARD CHARLES KINGSNORTH.
COMPLETE SPECIFICATION.
A Perfecting Rotary Printing Machine for General Book-work.
I, EDWARD CHARLES KINGSNORTH of 141 Lavender Sweep Clapham
Junction, London, 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 :-
This invention relates to an improved perfecting rotary sheet printing machine
adapted for general book work and will be described with reference to the
accompanying drawings forming part of this Specification wherein
Figure 1 is a vertical section Figure 2 a plan (with the laying-on board the
taking-off mechanism and some of the inking-rollers removed) and Figure 3 a
detail section on line 1-1 Figure 2.
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The same letters of reference indicate the same parts in all the figures.
The machine comprises two large "form" or plate-carrying cylinders A' A² and
two smaller impression cylinders B1 B2 about half the diameter of the cylinders A¹A*.
The cylinder A' carries the inner "form" a upon half its circumference, the other
half forming an ink-distributing surface a', the cylinder A² carrying the outer
form" a and a similar ink-distributing surface a'. The impression cylinders B¹ B³
can be covered with blankets or sheets, as usual, to give a hard or soft impression
CC are the two ink-fountains from which ink is supplied by sets of vibrating
rollers D' D² to the ink-distributing surfaces a¹ of the large cylinders each set of
vibrating rollers comprising two vibrating rollers d¹ d² vibrating together as one,
the former vibrating between the ink-fountain roller and an intermediate rotating
waver cylinder d³ and the latter vibrating between the said cylinder d³ and the ink-
distributing surface a'. D³ D³ D* D* are the inking-rollers arranged in two sets
+

page_text: for each cylinder A'A². E is the laying-on table from which the sheets are laid on
to the impression cylinder B' provided with the usual grippers b¹, upon which
cylinder the paper receives the impression from the cylinder A'. The sheet is
then transferred by the gripper motion hereafter described to the grippers 62 of the
impression cylinder B2 upon which it receives on the other side the impression of
the cylinder A. From the impression cylinder B2 the sheet passes to the taking-
off apparatus comprising the tapes T and the flyer F by which it is delivered on to
the table G. H are brush rollers working within a casing h and adapted to brush
the surface of the sheet and lay it smooth on the impression cylinder preparatory
to the impression by the "form." These brushes which are revolved (in the
direction shewn by the arrows) by bands, serve also to keep the blankets of the
impression cylinders clean. The casingh catches the dust which is removed
through a doorway for the purpose. The cylinders A¹ A* B¹ B2 are all geared
together so as to be rotated simultaneously, these and the other parts of the
mechanism being timed so as to ensure the proper relation of the parts.
The mechanism by which the grippers are operated at the proper moments to
seize and release the sheets and to effect their transfer from the one impression
cylinder to the other, is illustrated in detail in Figure 3. 1 2 3 4 are cams, carried
by a support I receiving intermittent motion in the transverse direction of the
machine by means of a cam i on the face of a gear wheel rotated at half the speed
of the impression cylinders, this motion of the support I having for effect to bring
the cams 12 and likewise the cams 3 4 in aud out of the paths of the arms & bon
the gripper shafts, the operation being as follows:-The cam 1 in the position
shewn, stands in the path of arm of grippers and opens the latter to receive
and grip the edge of the sheet laid on. After the grippers are closed, the
cams 1234 are retracted until the grippers have made a complete revolution,
during which the impression is made by the "form whereupon the cams are
returned to the position shewn and the grippers opened by their arm b meeting
the cam 2. At this moment the grippers are opened by the cam 3 to receive
and grip the edge of the sheet which thus becomes transferred to cylinder B² by
which it is carried round to receive the impression from the "form" on cylinder A²
whereupon the grippers are opened by cam 4 and the sheets delivered to the
tapes Tas shewn.
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Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, I declare that what 1
claim is ;
The hereindescribed improved perfecting rotary sheet printing machine con-
sisting essentially in the combination of the two large "form" cylinders with the
two small impression cylinders and with the respective sets of ink-distributing
mechanism and with the mechanism for transferring the sheets from the one
impression cylinder to the other, substantially as herein specified.
Wahman 1802
E. C. KINGSNORTH,
By A. M. & Wm. Clark,
53, Chancery Lane, London, Chartered Patent Agents.