Improvements in Sheet Delivery Mechanism for Printing Machines.
Year: 1899

page_text: Date of Application, 12th Apr., 1899
Complete Specification Left, 12th Jan., 1900 -Accepted, 17th Mar., 1900
PROVISIONAL SPECIFICATION.
Improvements in Sheet Delivery Mechanism for Printing Machines.
I, RICHARD BETTNEY FURNIVAL, of Reddish Iron Works, Reddish, in the
County of Lancaster, Engineer, do hereby declare the nature of this invention
to be as follows:-
This invention relates more particularly to that class of machines known as
two revolution printing machines and is designed to simplify and improve the
arrangement and construction of the sheet delivering mechanism for delivering
the sheet printed side up.
The invention may be applied to any class of printing machine in which the
sheet is delivered from a revolving cylinder.
The invention consists essentially in the combination with the travelling tapes
which receive the sheets from the cylinder of a second set of tapes (or their
equivalent) mounted on a reciprocating carriage or frame which receives the sheets
from the first set of tapes and delivers them face upwards onto the table.
In carrying out the invention the machine is constructed with the ordinary
delivery tapes and below these is placed a reciprocating carriage or frame carrying
a second series of delivery tapes or their equivalent.
The carriage is mounted on a suitable frame and is moved to and fro by a rack
and pinion or other usual form of reciprocating motion. The tapes pass over
spindles or rollers and are for the most part not revolving but the shafts are
rotated at intervals to traverse the tape when the carriage is moving backwards.
The tape rollers are connected by a sprocket or driving chain either at one or
both sides of the machine and with each chain engages a sprocket wheel which
is rotated by the chain as it is moved beneath it. This sprocket wheel is provided
with a pawl pivoted to the frame and is fitted with notches or teeth with which
the end of the pawl engages to prevent the rotation of the wheel.
On the reciprocating carriage or frame is placed a stop or stops which as it
passes to and fro engage the tail of the pawl and alternately throw it into and
out of engagement with the notches or teeth. Instead of a pawl a clutch or
other device may be employed for the same purpose to prevent the rotation of
the sprocket wheel and hold the chain while the carriage travels past it.
Ir operation the ordinary delivery tapes are driven in the usual way and
receive the sheets and deliver them onto the tapes carried by the carriage. The
carriage is timed to start on its outward journey as the sheets from the other
tapes reach it and the second set of tapes-not revolving-carry forward the
sheet with the carriage. The carriage then begins its return run and the pawl
is caused to engage and prevent the rotation of the sprocket wheel this causes
a revolving or traversing movement of the tapes equivalent to the speed of the
carriage and thus delivers the sheet onto the table below as the carriage recedes.
A stop or gauge may be placed at the end of the table.
WM. P. THOMPSON & Co.,
6, Bank Street, Manchester. Patent Agents,

page_text: Improvements in Sheet Delivery Mechanism for Printing Machines.
I, RICHARD BETTNEY FURNIVAL, 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 more particularly to that class of machines known as
two revolution printing machines and is designed to simplify and improve the
arrangement and construction of the sheet delivering mechanism for delivering
the sheet printed side up.
The invention may be applied to any class of printing machine in which the
sheet is delivered from a revolving cylinder.
The invention consists essentially in the combination with the travelling tapes
which receive the sheets from the cylinder of a second set of tapes (or their
equivalent) mounted on a reciprocating carriage or frame which receives the sheets
from the first set of tapes and delivers them face upwards onto the table.
The invention will be fully described with reference to the accompanying
drawings in which sufficient of a printing machine is shown to clearly illustrate it.
Fig. 1. Side elevation partly in section.
Fig. 2. Plan.
The cylinder A and the delivering tapes B which receive the sheets from the
cylinder are of any ordinary or suitable construction or arrangement.
The delivering tapes B are carried over rollers mounted in the frame C and
below them or at a lower level is mounted a reciprocating carriage or frame D
carrying a second series of delivering tapes E.
The carriage D is mounted on a frame F and is moved to and fro by a rack G
and pinion H or other usual form of reciprocating motion. The pinion H receives
a reciprocating movement from the upright rack K gearing with the pinion .
The tapes E pass over rollers e journalled in the frame of the carriage 1) and
are carried to and fro with it beneath the delivering tapes B. The tapes E for
the most part do not revolve but move away from the cylinder A with the
carriage and as the carriage D) returns the tapes are held or retarded the
rollers e rotating to compensate for the movement of the carriage.
The tape rollers are connected by a sprocket or driving chain d at one or both
sides of the carriage 1) and with the chain engages a sprocket wheel L which is
rotated by the cliain as it is moved beneath it. This sprocket wheel is provided
with a pawl pivoted to the frame C and is fitted with notches or teeth with
which the end of the pawl engages to prevent the rotation. of the wheel.
On the reciprocating carriage or frame 1) are placed two stops dd which as
the carriage moves to and fro alternately engage the tail of the pawl 7 and
alternately throw it into and out of engagement with the notches or teeth in the
sprocket wheel L. Instead of a pawl a clutch or other device. may be employed for
the same purpose to prevent the rotation of the sprocket wheel L and hold the
chain while the carriage D travels past it.
To the pawl is attached a spring which is placed to act first on one side of.
the centre and then on the other to hold the pawl into whichever position it
is thrown by reciprocating stops d' d².
The reciprocating carriage D is provided with stops or gauges M which prevent
the sheets of paper as they are delivered from the first set of tapes B being
carried too far forward. The stops M are carried on a shaft m pivoted in the
brackets m on the side of the carriage D and on the end of the shaft is fitted an
arm or bracket N. At the end of the outward traverse of the carriage D this

page_text: arm runs over the incline O by which it is raised lifting at the same time the
stops or gauges M to permit of the delivering of the paper sheets from the
tapes E. A pin n on the rack pinion H or on the frame moves back the stops or
gauges M at the end of the return traverse of the carriage D). The spring n¹
holds the arm N and stops M in either position.
A table P is placed below the carriage D to receive the sheets provided at its
outer end with a stop or gauge p. The table P is preferably hinged or pivoted
to allow of its being raised away from the bed of the machine when desired.
When in operation the ordinary delivering tapes. B are driven in the usual
way and receives the printed paper sheets from the cylinder A delivering them
on to the tapes E carried by the reciprocating carriage D. The carriage D
driven by the rack wheel H is timed to start on its outward traverse as each sheet
from the tapes B reaches it and the tapes E not revolving receive the sheet and
carry it forward by the advancing movement of the carriage. Before the carriage D
stops the stops or gauges M are raised by the action of the arm N on the incline O
to allow the sheets to pass over the end and the stop on the side of the carriage
engages the pawl and throws it into engagement with the sprocket wheel L to
prevent it rotating, thus by reason of the chain holding the tapes E from
moving during the return traverse of the carriage D. As the carriage D travels
back the tapes E are withdrawn from beneath sheet of paper which is deposited
on the table P with the face or printed side uppermost. When the carriage has
nearly completed its travel the stop engages the pawl 7 and throws it out of
engagement with the sprocket wheel 7 and the pin n engages the arm N and
the stops or gauges M back to their original position.
Having now particularly described and ascertained the nature of the said
invention 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 deliver-
ing tapes to receive the sheets from the cylinder and a second set of delivering
tapes mounted upon a reciprocating carriage to receive the sheets from the first
set of tapes and deliver them upon a table placed beneath them substantially as
described.
2. In sheet delivering mechanism for printing machines the combination with
the cylinder A and delivering tapes B of a reciprocating carriage 1) a second
set of delivering tapes E carried backwards and forwards thereby under the first
set a chain connecting the tape rollers e a pawl or sprocket wheel engaging
the chain whereby the movement of the tapes can be stopped stops on the
carriage for throwing the pawl into and out of gear with the sprocket wheel and
fixed table and to receive the sheets printed side uppermost substantially as
described.
3 Sheet delivering mechanism for printing machines constructed and arranged
substantially as and for the purpose described and shown.
Dated this 8th day of January 1900
WM. P. THOMPSON & Co.,
6, Bank Street, Manchester, Patent Agents.