Improvements in Printing Machinery.
Year: 1897

page_text: Date of Application, 15th Apr., 1897
Complete Specification Left, 17th Jan., 1898– Accepted, 5th Mar., 1898
PROVISIONAL SPECIFICATION.
Improvements in Printing Machinery.
I, ALFRED FRANCIS BATTEY, of 103, Farringdon Road, London, E.C., Engineer,
do hereby declare the nature of this invention to be as follows:-
This invention relates to that class of printing machinery in which a flat re-
ciprocating type-bed is employed, and the object of the invention is to provide
simple means for producing the reciprocating motion.
The invention consists in the adaptation of a motion of the character known
as the mangle motion, to effect the reciprocation of the type bed.
In carrying out this invention, the bed is provided, on its underside, with a
slotted plate of suitable depth.
The slot has an endless rack all round, and parallel with this rack the plate
is provided with a groove in which a guiding roller or bowl moves.
On the end of an axle mounted in suitable bearings, and conveniently driven,
is a toothed wheel, and with this wheel gears a second wheel mounted on a stud-
axle carried by a swinging counterweighted plate mounted on the main axle.
To this second wheel, which turns loose on its axle, is secured a pinion which
works into the rack, and the axle also carries the bowl before referred to.
As the main axle is driven, the spur wheels will be driven, and the pinion will
be caused to move the rack along. At the end of the stroke, the bowl being held
in the groove, will cause the pinion to travel round the ends of the rack, being
assisted by the counterweight, and thus reverse the motion of the type bed.
By these means, a very smooth, simple, and satisfactory reciprocating movement
will be given to the type bed.
Improvements in Printing Machinery.
I, ALFRED FRANCIS BATTEY, of 103, Farringdon Road, London, E.C., 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
0 statement:-
This invention relates to that class of printing machinery in which a flat re-
ciprocating type-bed is employed, and the object of the invention is to provide
simple means for producing the reciprocating motion,

page_text: The invention consists in the novel adaptation of a rack and pinion motion to
effect the reciprocation of the type bed.
In carrying out this invention the bed is provided, on its underside with a plate
of suitable depth, which has an endless rack formed thereon, and parallel with this
rack the plate is provided with a groove in which a guiding roller or bowl may
move.
On the end of a shaft mounted in suitable bearings, and conveniently driven,
is a toothed wheel, and with this wheel gears a second wheel mounted on an axle
carried by a swinging counterweighted plate or frame mounted on the main axle.
To this second wheel, which may turn loose on its axle, is secured a pinion which
works into the rack, and the axle may also carry the bowl before referred to, or
the axle itself may form the guiding pin.
As the main shaft is driven, the spur gear will be driven and the pinion will
be caused to move the rack along. At the end of the stroke, the end of the axle
or the bowl being held in the groove, will cause the pinion to travel round the
ends of the rack being assisted by the counterweight and thus reverse the motion
of the type bed.
By these means, a very smooth simple, and satisfactory reciprocating movement
will be given to the type bed.
In the accompanying drawing.
Fig. 1 is a longitudinal sectional elevation of so much of a machine as is
necessary to illustrate my invention.
Fig. 2 is a transverse sectional elevation; and
Fig. 3 a sectional plan view with the type bed removed.
A represents the main frame of the machine, and B the reciprocating type bed.
C is a plate or frame pendent from the underside of the bed B.
On the face of this plate or frame C is formed the endless rack D.
E is a groove in the plate, which runs parallel with the rack, whatever form the
rack may take.
F is the main driving shaft, which turns in bearings G G', the bearing G being
on the frame and G¹ a bracket bearing to support the inner end of the shaft.
The shaft carries on its inner end the spur wheel H and it also carries the
swinging plate or frame J. This frame has at one end, the bearings for an axle K
and at the other end a counterweight J.
On the inner end of the axle K is preferably loosely mounted a spur wheel L
which gears with the spur wheel H, and connected to the wheel L is the pinion M
which gears with the rack D). In the drawing the axle is shown as projecting into
the groove E and forms the guiding pin to rock the frame J on its axis, as the pinion
works round the ends of the rack D, and also to ensure that the pinion shall remain
in contact with the rack, so as to reciprocate the bed.
Having now particularly described and ascertained the nature of my said in-
vention and in what manner the same is to be performed I declare that what I
claim is:-
The means substantially as herein shown and described for reciprocating the
type-bed in printing machines of the class in which such type beds are used.
Dated this 15th day of January 1898.