Improvements in Sheet Delivery Mechanism for Printing Machines.
Year: 1898

page_text: Date of Application, 23rd Aug., 1898
Complete Specification Left, 23rd May, 1899-Accepted, 8th July,
1899
Improvements in Sheet Delivery Mechanism for Printing Machines.
RICHARD BETTNEY FURNIVAL, Reddish Iron Works, Reddish, in the County of
Lancaster, Engineer, do hereby declare the nature of this invention to be as
follows:-
-
My invention relates to improvements in sheet delivery mechanism applicable
more particularly to that class of machines known as two-revolution printing
machines although it obvious it may be adapted to other cylinder printing
machines having a reciprocating bed motion. .
The primary object of my invention is to deliver the sheet printed side up.
This invention consists in certain features of novelty in construction, com-
bination and arrangement of parts so arranged that each sheet of paper as it passes
through the machine is delivered printed side up.
With this end in view I will now describe the means:-The sheet is delivered
on to a series of tapes by well known means (which is no part of my invention).
In my invention these tapes are geared to run at the same surface speed as
the cylinder, and carry the sheet to a stop which may be a part of a series of
grippers or a separate stop. When the edge of the sheet arrives at or near the
stop the tapes cease running by being thrown out of gear automatically by means
of a catch box or friction clutch. In connection with the stopping of the tapes
it may be necessary to apply a brake to the tape shaft. Immediately the tapes
stop the sheet is seized by a series of grippers which are fixed on a carriage having
a reciprocating motion for the purpose of delivering the sheet printed side up on
a delivery board, the sheet being released at the end of the travel of the carriage
by means of a stationary cam fixed near the end of the machine which opens the
grippers and so releases the sheet which drops on the delivery board, this being
accomplished without allowing the printed side of the sheet to come in contact
with any part of the printing machine and thus preventing smearing.
The method of actuating the aforesaid gripper carriage is as follows:-
The carriage has a rack attached to it which gears into a tooth wheel the latter
of which is worked by a rack rod from a cam keyed on one of the principal driving
shafts.
The shaft carrying the, tapes which is put out of gear automatically is allowed
to get in gear again automatically at any time after the gripper carriage has
begun to take the sheet away in order to carry the following sheets in the manner
described above.
Dated this Nineteenth day of August 1898.

page_text: I, RICHARD BETTNEY FURNIVAL, of Reddish Iron Works, Reddish, in the
County of Lancaster, Engineer, 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 improvements in sheet delivery mechanism applicable
more particularly to that class of machines known as two revolution printing
machines though the invention may also be adapted to or applied to other cylinder
printing machines having a reciprocating bed motion.
The invention is designed to provide an improved construction and arrange-
ment of mechanism for delivering the sheets as they are printed with the printed
side up.
It will be fully described with reference to the accompanying drawings;-
Fig. 1. Side elevation of the machine with the parts in position before the
traverse of the carriage begins with the grippers K, K-closed on the paper
and the travelling bands B stopped.
Fig. 2. Plan with parts in position as in Fig. 1.
Fig. 3. Side elevation (enlarged) partly in section of the carriage in almost the
same position as in Fig. 1, but with the grippers open to receive the printed
sheet of paper.
Fig. 4. Part plan of one side of the machine.
Fig. 5. Part plan of other side of the machine.
Fig. 6. Side elevation (enlarged detail) of mechanism for operating the travelling
delivering bands or tapes.
Fig. 7. End or front elevation of same.
Fig. S. Side elevation (enlarged detail) of modified arrangement for operating
the travelling bands.
Fig. 9. End or front elevation of same.
The cylinder A is of any ordinary or suitable construction (either two or one
revolution) with a number of delivering bands or tapes B arranged in front to
transfer or carry the sheets direct from the cylinder A to the travelling carriage D
with the printed side uppermost.
The travelling or delivering carriage 1) is mounted on runners & which traverses
backwards and forwards on the frame or rail E and has a horizontal rack F affixed
to it at each side of the machine with which gear the pinions G the rotation
of which first in one direction and then in the other operates the carriage and
moves it to and fro. The pinion shaft is actuated by a vertical rack rod H
which is reciprocated or moved to and fro by the cam H keyed to one of the
principal driving or rotating shafts of the machine. The cam H is connected
to the rack rod H by the connecting rod h bell crank lever and link h² and
the rack H gears with a pinion G on the pinion shaft g.
The reciprocating delivering carriage I carries a set or series of grippers K K¹
one movable and the other stationary which seize or grip the edge of the paper
when it is carried down by the travelling tapes and continue to hold it during the
traverse of the carriage. A stop L is provided to prevent the sheet travelling too
far before being seized by the grippers K K¹.
The grippers are held close by a spring k and as the carriage D approaches
the travelling tapes B the movable grippers K are caused to open by the pivoted
lever M which engages with a bowl or runner on the end of an arm or

page_text: lever. The lever M is pivoted to one arm of the rack pinion G and is rotated
or carried round by it and when the pinion has reached the position shown in
Fig. 3 the cam or projection m on the end of the lever M engages with the bowl
or runner on the arm and raises it causing the grippers to open. The
reverse movement of the pinion G to traverse the carriage back again instantly
releases the bowl and permits the grippers to close on the paper.
The finger is attached to the spindle of the movable gripper and moves with
it and engages the arm of the stop L thereby moving the stop L out of the path
of the paper at the same time as the paper is seized by the grippers. The stop L
when lifted is held up by the spring acting on the other side of the centre
during the outward travel of the carriage 1), the cam piece on the side of the
pinion G then strikes or engages the stop arm and throws the stop L down again
into the position shown in Fig. 3.
The gripper K is opened at the end of the traverse of the carriage D to
release or deliver the sheet on to the delivery board O by the arm also secured
to the gripper spindle. At the outer end of the frame is placed an incline N (or
a cam piece or its equivalent) up which the bowl at the end of the arm & runs
lifting the arm and depressing or opening the grippers K. The travel of the
sheet of paper is stopped by the stationary adjustable stops fixed at the end of
the machine and these stops also serve to guide the sheet of paper when released
down to the delivering board O.
The travelling tapes B are stopped or caused to cease running when the edge
of the sheet of paper arrives at or near the stops L by means of a catch box P
or a friction clutch R actuated by a cam S on any rotating part of the machine.
In Figs. 16 and 7 the shaft 6 carrying the pulleys by which the tapes B
are driven is operated by a catch box P provided with a pawl p which engages the
tooth or ratchet p¹. The movement of the cam S throws the pawl p out of gear
at the proper time to stop the travel of the bands B.
In Figs. 8 and 9 the shaft bis driven by the friction clutch R which is thrown
into and out of gear at the required moment by the cam piece S¹ on the side of the
cylinder A or by a cam placed in any other convenient position.
In operation the sheets are delivered from the cylinder A in the usual way
printed side up on to the travelling tapes B and are carried by them to the
grippers K. As the edge of the sheets reach the stops L the tapes cease running
and the grippers K K₁ seizing them, at the same time the pinion G, is rotated by
the vertical rack H and operating upon the horizontal rack of the carriage D
moves the carriage to the other end of the machine carrying the sheet with it in
the gripper K K¹. When the carriage reaches the end of the machine the
grippers Kare opened by the incline N and the sheet delivered printed side upper-
most upon the delivering table O.
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 I
claim is:-
1. Sheet delivering mechanism for printing machines constructed with a reci-
procating carriage to deliver the sheets printed side uppermost traversed back-
wards and forwards by a pinion or pinions engaging a horizontal rack thereon and
operated by a reciprocating rack preferably vertical which derives its movement
from a cam on the driving shaft or elsewhere substantially as described.
2. In sheet delivering mechanism for printing machines constructed with a
reciprocating carriage to deliver the sheets printed side uppermost the combination
therewith of a series of grippers by which the sheet is seized and carried forward
from the delivering tapes substantially as 'described.
3. In sheet delivering mechanism for printing machines the combination with
a reciprocating carriage to deliver the sheets printed side uppermost of a series

page_text: of travelling tapes which are caused to cease running when the edge of the sheet
reaches the carriage substantially as described.
4. Delivering mechanism for printing machines to deliver the sheets printed
side uppermost constructed and arranged substantially as described and shown.
1
"
eac
1000
WM. P. THOMPSON & Co.,
6, Bank Street, Manchester, Patent Agents.