Improvements in Compressing and Stamping Machinery.
Year: 1886

page_text: Date of Application, 22nd May, 1886.
Complete Left, 19th Feb., 1887.
Complete Accepted, 22nd Mar., 1887.
Improvements in Compressing and Stamping Machinery.
We JOSEPH WHETNALL of 5 Peel Street Manchester Fitter and GEORGE HENRY
RICHMOND of 6 Brighton Street Chorlton on Medlock Manchester Mechanical Engineer
do hereby declare the nature of our said invention for IMPROVEMENTS IN COMPRESSING
AND STAMPING MACHINERY to be as follows:-
This invention consists in improvements in that class of machinery used for
compressing or stamping different substances into cakes or discs.
In carrying out our invention we mount a table upon side frames and through
bosses in these side frames we mount a horizontal crank shaft arranged with a crank at
each end these cranks give motion to a pair of connecting rods which we prefer to
construct with springs in one end so as to allow of adjustment to give different
pressures according to the nature of the material being compressed or stamped.
These connecting rods give an up and down motion to a cross bar which cross bar is
mounted above the table and is guided through holes by two studs rising from the
table working on a sleeve passing through the table is a revolving disc provided with
holes to receive the meterial to be compressed or stamped. The motion of the
hereinbefore mentioned dise is so timed that it shall stop when each one of the holes
arrives at a possition under the cross bar which is provided with a punch, this punch
entering the hole at such time as the cross bar receives its downward stroke from the
connecting rods. The manner of actuating the hereinbefore dise is as follows. Upon
a vertical shaft mounted upon a footstep and guided in a bracket cast to the table and
to which shaft motion is imparted by means of a train of spur wheels and a pair of
bevel wheels one of such bevel wheels being mounted upon the crank shaft and the
other bevel wheel being mounted upon a shaft working in the sleeve before mentioned
and supported by a bracket projecting from one of the side frames is a slotted plate
carrying a pawl this pawl engaging into notches cut in the disc hereinbefore
mentioned and is so arranged that it shall give one eighth of a revolution to the disc
to every complete revolution of the slotted plate. It will thus be apparent that if the
dise be provided with eight holes the punch will enter each hole as such hole is
presented to the punch. The herein before mentioned disc is further provided under
cach hole with a hinged drop plate having upon it a projection which projection

page_text: exactly fits the holes in the disc and acts as a false bottom to the holes. In the
surface of the table and underneath that portion of the radius of the disc where the
holes come we form a slot provided with an inclined edge.. This slot allows the hinged
drop plate to fall when the drop plate arrives over it, and the inclined edge serves the
purpose of again raising the drop plate into its original position. If desirable a
hopper may be provided to feed into the holes the material to be compressed or
stamped. The side frames are further provided with a counter shaft having mounted
upon it a pair of fast and loose pullies for driving and also a spur wheel gearing into a
spur wheel mounted upon the crank shaft and so motion is imparted to the whole
machine. The action of the machine is as follows. The material to be compressed or
stamped is fed into the hopper from whence it falls into one of the holes in the disc
the machine being then started the hole (full of the material to be compressed or
stamped) advances by eighths being driven by the pawl worked by the slotted plate
until it comes to a position under the punch in the cross bar the punch then decends
into the hole whilst the pawl is taking its back stroke and consequently the disc is at
rest, and compresses or stamps the material, having so done the punch rises out of
the hole and allows the disc to travel onwards until it arrives at the slot in the table
which slot is underneath another portion of the cross bar provided with a second
punch or forcer, the hinged drop plate then falls and allows this second punch or
forcer to force out the compressed.material. The inclined edge of the slot serving the
purpose of gradually raising the hinged drop plate into its original position so making
the hole ready for another charge. It will be obvious that the punches and holes may
he of any desired shape and the punch and projection on the hinged plate may have
letters or devises formed on them, to mark the compressed or stamped material as
desired:

page_text: Improvements in Compressing and Stamping Machinery.
We JOSEPH WHETNALL of 5 Peel Street Chorlton on Medlock Manchester in the
County of Lancaster Fitter and GEORGE HENRY RICHMOND of G Brighton Street
Chorlton on Medlock Manchester in the County of Lancaster Mechanical Engineer, dó
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 consists in improvements in that class of machinery used for
compressing or stamping different substances into cakes, discs or tablets.
And in order that this our said invention may be better understood and carried into
practical effect we have hereunto annexed a sheet of drawings illustrative of our
improvements and will now proceed to describe the same with the assistance of the
various figures and letters of reference marked thereon, like letters being used in each
figure to denote similar parts.
Fig. 1. is a side elevation partly in section, Fig. 2. a plan view and Fig. 3. an end
view of a compressing or stamping machine constructed in accordance with our
improvements and drawn to a scale of about three inches to the foot. Fig. 4. is a side
section and Fig. 5. a plan view (broken off for want of space) of the disc and drop
plates hereinafter described both drawn full size.
In carrying out our invention we arrange a table A upon side frames B and B¹ and
through bosses D in these side frames we mount a horizontal crank shaft C arranged
with a crank E at each extremity-These cranks give motion to a pair of connecting
rods and G which we prefer to construct with springs H at one end so as to allow
of adjustment to give different pressures according to the nature of the material
being compressed-These connecting rods give an up and down motion to a cross
har I which is mounted above the table A and is guided through holes J by two
studs K and L rising from the table-Working on a sleeve M passing upwards
through the table A is a revolving disc N provided with a series of holes O to receive
the material to be compressed-The motion of the hereinbefore mentioned disc is so
timed as hereinafter described that it shall stop when each one of the holes O arrives
at a position under the cross bar I and which cross bar is provided with a punch or
stamper P for entering each hole successively at such time as the cross bar I receives
its downward stroke from the hereinbefore mentioned connecting rods.
The mode of actuating the disc N is as follows:- -Upon a vertical shaft Q working
in a footstep R and guided through a hole in the table A a cam Y is mounted-This
shaft Q is driven by means of a pair of spur T and S and bevil Y and U wheels. One
of such bevil wheels is mounted upon the crank shaft C and the other upon shaft W
working in the sleeve M. hereinbefore mentioned-This shaft Wis further supported by
a bracket X projecting from one of the side frames and has keyed upon it one of the
spur wheels S above mentioned whilst the other spur wheel T is keyed upon the
shaft Q carrying the cam Y. This cam Y is so formed as to releace a stop lever Z

page_text: which engages with one of a series of notches a. cut into the edge of the hereinbefore
mentioned disc N. Upon this cam shaft Qis mounted a single toothed wheel b. the
tooth of which gears at each revolution into one of the eight teeth of a star wheel c
mounted upon the sleeve M herein before mentioned and so imparting one eighth of a
revolution to such sleeve M. and dise N to every complete revolution of the cam
shaft Q-This cam is so timed and formed that it shall lift the stop lever Z just
before the single toothed wheel b. gears into the star wheel c. The object of employing
this stop lever is to hold the disc N stationary in position whilst the punch or presser P
descends by the action of the connecting rods F and G into one of the holes O in the
disc N and which holes will be successively timed to arrive exactly underneath the
punch or presser at the instant of its descent.
It will thus be apparent that if the disc N be provided with eight holes and eight
notches the punch or stamper P will enter each successive hole as it is carried round
by the action of the single toothed wheel . gearing into the star wheel e and so coming
opposite to the punch or stamper. Each hole in the disc N is further provided with a
hinged drop plate d. having upon it a projection e. which exactly fits and so acts as a
false bottom to each such hole.
In the surface of the table A and underneath that portion of the radius of the disc
where the holes come opposite we form a slot-f. provided with an inclined edge-This
slot allows the hinged drop plate to fall when it arrives over it whilst the inclined
edge also serves the purpose of again raising the drop plate into its original position as
the disc proceeds-The set screws n. is provided for regulating the length of the
punch and the set screws r. r. for regulating the pressure on the springs H.
t. t. are also set screws for holding the punch or presser and the forcer in position.
If desirable a hopper may be employed to feed the material to be compressed or
stamped into the holes. The side frames B and B also carry a counter shaft y. having
9.
mounted upon it at one extremity a pair of fast and loose pullies h. and i. for driving
and at the other a fly wheel j. The same shaft also carries a spur pinion k. gearing
with a spur wheel 7. mounted upon the crank shaft and thus motion is imparted to
the whole machine.
The action of this improved machine is as follows:-
The material to be compressed or stamped is first fed into the hopper from whence it.
falls into and fills one of the holes in the disc N.
Upon starting the machine it will be seen that the crank shaft give reciprocating
motion to the connecting rods F. and G. and so raises the cross bar I whilst at the
same time the bevil wheel U gives motion to the shaft. W. This shaft. Win turn gives
motion to the cam shaft by the action of the spur pinion S gearing into the spur
wheel T. The single-toothed wheel b. engages with and strikes one tooth of the star
wheel c. every time it revolves and as this star wheel c. is keyed to the sleeve M which
carries the disc N it will be obvious that such disc N will move one eighth of a
revolution to every revolution of the shaft Q and cam Y. This movement takes place
at the instant that the cross bar I. is about at its highest position and consequently
when the puncher or presser P and the forcer p. are clear of the holes. The cain Y is
so timed that it shall lift the stop lever Z. out of the notch a. just before the single
toothed wheel b. strikes the star wheel c. and so the disc is free to make one ciglth of
a revolution Upon the completion of each revolution of the cam Y. the stop lever Z.
is ready to drop into the next notch a. by the action of the spring m. and the disc N
is thereby held stationary whilst the punch P descends into the hole beneath it, and so
compresses or stamps the material contained therein-Having now completed the
compressing operation the punch or presser P. rises out of the hole O. by the action
of the connecting rods F. and G. and allows the disc N to travel onward until the
hole containing the now compressed or stamped material arrives at the slot f. in the
table A. and so permits its hinged drop plate to fall whilst a second punch p. mounted
in the same cross bar simultaneously descends and pushes out the compressed or
stamped material-As the disc N. again proceeds the inclined edge of the slot comes
in contact with and so raises the hinged drop plate into its original closed position and
so making the hole ready again for another charge,

page_text: In this manner each hole in the disc N. is charged, compressed, and emptied
successively as the disc revolves intermittently upon its axis.
It will be obvious the punches and holes in the disc N. may be of any desired shape
and that the punch P. and projections e. on the hinged drop plate d. may have letters
or devices embossed engraved or otherwise formed on them to correspondingly stamp
and mark the compressed material as desired.
Having thus particularly described and ascertained the nature of our invention and
in what manner the saine is to be performed we wish it to be understood that we do
not confine ourselves to the precise details relative proportions or dimensions of the
various parts hereinbefore described, as the same, may be considerably varied without
departing from the invention nor do we confine ourselves to the size or shape of the
punches, holes and drop plates hereinbefore described and illustrated on the
accompanying drawing but what we claim is :-
1st. The improvements in compressing or stamping machinery substantially as
hereinbefore described.
2nd. The combination and arrangement of mechanism substantially as and for the
purposes hereinbefore described and illustrated on the accompanying drawing.
3rd. The improved disc fitted with hinged drop plates and operating substantially
as and for the purposes hereinbefore described and illustrated on the accompanying
drawing.
4th. The novel arrangement of mechanism constituting an intermittent motion for
the disc substantially as hereinbefore described and illustrated on the accompanying
drawing.