Improvements in Sheet Delivery Apparatus and Ink Supply of Printing Machines and the like.
Year: 1898

page_text: Date of Application, 15th Dec., 1898
Complete Specification Left, 13th Sept., 1899-Accepted, 11th Nov., 1899
Improvements in Sheet Delivery Apparatus and Ink Supply of
Printing Machines and the like.
We, WILLIAM HENRY DAWSON, of Maple Bank, Otley, Printers' Engineer, and
JAMES STOTT, of 7, Ashfield Place, Otley, Printers' Engineer, do hereby declare
the nature of this invention to be as follows:-
The object of our invention is to so construct an apparatus to take sheets issu-
ing either direct from a printing machine cylinder, or from an auxiliary cylinder
or from any suitably constructed sheet carrying apparatus used in the delivery
of sheets on printing machines or the like, and deposit them on a delivery board
suitably mounted within the are formed by the carrying arms, so that the
smearing of sheets is avoided, space economised, thereby giving greater freedom
to the operator; and is of cheaper construction, to be used either with or without
tapes; also to stop the ink supply when the cylinder is stopped.
In carrying out our invention we mount in a suitable position and in bear-
ings, a shaft provided with two lever arms, one on each side of the machine.
At the end of the lever arms we mount a box (transversely) provided with a
gripping device which is made to swivel and is guided in suitably constructed
paths so as to bring the gripping device into position for receiving and deliver-
ing the sheets upon a board suitably placed.
The said lever arms are of a suitable length to admit of the desired size of
sheet to be delivered.
In some cases we employ an auxiliary or taking off cylinder between the
printing cylinder and the said lever arms.
When taking the sheets from tapes an extra swinging arm may be employed.
We also employ an extra gripping device to stay and pile the sheets, consist-
ing of fingers fixed on suitably pivotted bearings near the end of the delivery,
or a finger may be made to descend upon the centre or other required position of
the sheet where there is no printed matter.
For operating the flyer or the aforesaid levers, we employ a pivotted lever,
the end of which works in a slide, the slide being attached to the flyer shaft:
the said lever is operated by the ordinary flyer lever and cam from any con-
venient part of the machine, or by a lever on the stud and a lever on the flyer
shaft connected by suitable link and operated as before described.
For stopping the ink supply at the same time as the cylinder we connect to
the ordinary lever from the ink roller a short heavy ended pivotted lever, pro-
vided with a runner or projection placed so as to be in contact with a long
pivotted weighted lever reaching to the operating slide (which stops the printing
cylinder).
When the printing cylinder stops, the heavy end of the long lever is raised and
the short end depressed, releasing the short weighted lever connected to the
ink stopping lever, which is raised by the short weighted lever and stops the ink
supply.
1000
JOHN E. WALSH,
Royal Exchange Chambers, Boar Lane, Leeds,
Patent Agent for the Applicants.

page_text: Improvements in Sheet Delivery Apparatus and Ink Supply of
Printing Machines and the like.
We, WILLIAM HENRY DAWSON, of Maple Bank, Printers' Engineer, and JAMES
STOFT, of 7, Ashfield Place, Printers' Engineer, both in Otley, in the County of
York, 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:-
The object of our invention is to construct an apparatus to take sheets issu-
ing either direct from a printing machine cylinder, or from an auxiliary cylinder,
or from any suitably constructed sheet carrying apparatus used in the delivery
of sheets on printing machines or the like, and to deposit them on a delivery
board suitably mounted within the are formed by the carrying arms, so that the
smearing of sheets is avoided, space is economised (thereby giving greater
freedom to the operator), and the machine is of cheaper construction, to be used
either with or without tapes; also to stop the ink supply when the cylinder is
stopped.
In describing our invention in detail reference is made to the accompanying
sheets of drawings, in which such parts only are shown as are required to illus-
trate our invention, and in which similar parts are indicated by similar
references.
Fig. 1 is a side elevation of our improved stop cylinder printing machine for
taking sheets direct from the cylinder."
Fig. 2 is a side elevation of our improved stop cylinder printing machine in
which an auxiliary cylinder is employed.
Fig. 3 is a side elevation (partly in section) showing our method of taking the
sheet after the leading end has been switched from the cylinder.
Fig. 4 is a side elevation of our improved apparatus for stopping the ink supply
at the same time as the cylinder.
Fig. 5 is a plan of Fig. 4.
The feeding board A, cylinder B, and grippers C are of the ordinary con-
struction, and are operated in the usual manner, viz.:-
The cylinder is geared to the table by means of wheels and racks, and revolves
in one direction during one stroke of the table, and is stationary during the
reverse stroke.
According to our invention as illustrated at Fig. 1, we mount revolving
arms DD of suitable length at each side of the machine, and connect them by
suitable gearing to the impression cylinder B so as to revolve with the said
cylinder. At the end of the said arms is mounted transversely a gripping
device E, which may be either fixed or swivelled, and suitably guided so as to
bring the gripping edge into line for receiving or delivering the sheets. And
within the arc of travel we suitably mount a board F for the reception of the
sheets.
When in operation a sheet is fed from the board A to the gripper C, and is
then carried round to a point in the line of diameters of the impression cylinder B
and the gear wheel of the revolving arms D.
At this point the gripper G (shown in the position f on the carrying arm) has
been brought into position by the aforesaid gear to receive the sheet from the
cylinder, and conveys it to a point f¹.
The sheet is kept at this point until the table reverses and re-engages the
cylinder, when another sheet is taken from the feed board A and the operation
is repeated.

page_text: As the gripping devices are diametrically opposite, the gripper G' has been
brought into the position previously occupied by G, ready for the second opera-
tion as above described. When the second operation is completed the gripping
device G has made one revolution, and at this point the sheet is deposited upon
the delivery board F.
According to our invention as illustrated at Fig. 2 we employ (with the feed
board A, cylinder B, and grippers C as before described) an auxiliary or taking-
off cylinder H between the impression cylinder B and the delivery arms 1),
the said arms D having a reciprocating movement.
The auxiliary cylinder (or revolving carrying arms) H is provided with a
gripping device and is geared to the impression cylinder B. The carrying
arms D), one on each side of the machine, are mounted on a shaft I, and are
provided with a gripping device E transversely mounted on the said arms
Secured to the shaft I is a slide box J in which works the end of a pivotted
lever K.
In operation the sheet is taken (as before described in reference to Fig. 1).
until it arrives at a point in the line of diameters of the impression cylinder B
and the auxiliary cylinder H, when it is taken by the grippers of the auxiliary
cylinder and conveyed to the point f. At this point the impression cylinder and
auxiliary cylinder, having made one revolution, are stationary during the back-
ward travel of table (as described in reference to Fig. 1).
The arm D then commences to reciprocate, carrying with it the sheet until
it arrives at the point f, when the gripping device E delivers the sheet upon the
board F.
The carrying arms D are operated by the lever K, which is provided with a
bush or bowl so as to slide in the box J, and is actuated from any convenient
part of the machine by a rod L attached to a suitable eccentric or cam.
According to our invention as illustrated at Fig. 3, we employ (with the feed
board A, cylinder B, and grippers C as before described) an auxiliary set of
grippers M, which rest on the cylinder B under the sheet. Switches N are also
provided, and a shaft O with a series of bowls resting on the cvlinder B.
In operation the grippers C convey the sheet from the feed board A as before
described, until they arrive at the point shown, when the said grippers Copen
Then the points of the grippers M. being
sufficient to allow the sheet to clear.
under the sheet, rise so as to lift the edge of the sheet on to the switches N.
The sheet is then forced forward by the bowls resting on the cylinder B and
carried by the shaft O.
When the leading edge of the sheet arrives at the point f5, the gripper
device E on the carrying arm D takes the sheet and deposits it on the board as
described in reference to Fig. 2, the said carrying arms D being worked as before
described in reference to Fig. 2.
The grippers shown in the several figures are of the ordinary pattern, and are
operated by any suitable means.
According to our invention for stopping the ink supply, as illustrated at Figs. 4
and 5, we connect to the ordinary upright pawl lifting bar Q from the ink roller
a heavy-ended pivotted lever R, pivotted at R¹ and provided with a projection S
so placed as to be in contact with a long weighted lever T, pivotted at T. The
long end rests upon a pin V attached to the slide U, the said lever T being of
sufficient length to rest on the projecting pin V, and the weight being so
0 arranged as to lift up the opposite end and raise the weighted lever R. U is
the operating slide for stopping and starting the cylinder. W is a pawl for
operating the ink roller. X is a bowl resting on top of the bar Q. Z is the
connecting rod for actuating the ratchet gear Y Y which operates the ink roller.
P is the frame of the machine.
5
In operation, when the slide bar U rises to stop the cylinder, the lever T
resting upon the pin V is also raised, causing the opposite end of the lever to
be depressed,

page_text: The weighted lever R then falls and raises the upright pawl lifting bar Q;
this in turn raises the bowl X which rests upon the top of the bar Q, thereby
lifting the pawl W out of gear with its catch wheel, and stopping the ink
supply.
ifs
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is: :-
1. In a stop cylinder printing machine, the employment of the revolving
arms D provided with gripping devices E, for taking sheets from the impression
cylinder and depositing them on the board F placed within the arc of revolution
of the said revolving arms, the whole arranged and operated substantially as
described and as illustrated at Fig. 1 of the accompanying drawings.
2. In a stop cylinder printing machine, the combination of the delivery
arms D, the gripper device E, and the auxiliary cylinder H, for taking sheets
from the impression cylinder and delivering them on the board F placed within
the arc of travel of the said delivery arms D, the whole being arranged and
operated substantially as described and as illustrated at Fig. 2 of the accompany-
ing drawings.
3. In a stop cylinder printing machine, the combination of the delivery
arms D, the gripper device E, the switches N, the grippers C and M; the delivery
board F, and the bowl shaft O, the whole being arranged substantially as and
for the purposes described, and as illustrated at Fig. 3 of the accompanying
drawings.
4. In a stop cylinder printing machine, the combination of the slide box J
mounted on the shaft I, and the pivotted lever K operated by the rod L, sub-
stantially as and for the purposes described, and as illustrated at Figs. 2 and 3
of the accompanying drawings.
5. In a stop cylinder printing machine, the combination of the bar Q, the
short weighted lever R, with projecting pin S, the long lever T, the pivot T',
the pin V, and the slide U, all arranged and operated substantially as and for
the purposes described, and as illustrated at Figs. 4 and 5 of the accompanying
drawings.
Dated this 11th
Contamh 1800
JOHN E. WALSH,
Royal Exchange Chambers, Boar Lane, Leeds,
Patent Agent for the Applicants.