An Improved Bullet and Shot Machine.
Year: 1889

page_text: Date of Application, 28th May, 1889-Accepted, 23rd Nov., 1889
COD DIE DI DUIFICATION.
[Communicated from abroad by EDWIN JOHNSON LUMLEY, residing in Washington,
District of Columbia, U.S.A.]
An Improved Bullet and Shot Machine.
I, WILLIAM HENRY CHAMBERLAIN of Hotel Victoria, Northumberland Avenue, in
the County of Middlesex, Gentleman, 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 :-
My invention relates to bullet and shot machines for the manufacture of bullets
and shot, and it consists in the novel instrumentalities which will be fully understood
from the following description, taken in connection with the annexed drawings in
which
Figure 1. is a side elevation of my improved machine, parts of the frame of which
are broken away, and parts of which are in section. Figure 2 is a top view of the
twin spherical bullet or shot-forming rollers showing the journal bearings and
gearing.
Figure 3 is a vertical transverse section in detail indicating the shearing device,
the guiding or sash-frame for the vertically reciprocating knife or shear, and the
driving arrangement.
Figure 4 is a vertical detail view showing the mode of attaching the knife G¹, to
the frame G.
Figure 5 shows in detail a portion of the bed or platen, and one of the bevelled side
guides D for a sheet of lead or other suitable metal.
Referring to the annexed drawings by letter, A designates a frame adapted to
sustain the devices which I shall hereinafter explain.
The front or feeding end of this frame is open-notched at a to receive the journals
of a roller adapted to hold a ribbon of lead a* or other suitable material of which
it is desired to produce spherical shot. This sheet or ribbon is indicated in the
annexed drawings coiled or wound about the said roller. In front of which roller is
an anti-friction roller a¹, the journals of which are sustained in notches a² formed in
the cheek of the main frame A. The periphery of this anti-friction roller a¹, at its
highest point is flush with a solid flat bed or platen b, which extends to and terminates
at a point x, hereinafter again referred to, and shown in dotted lines, figure 1. The
object of this platen or bed b, is to cause the sheet of metal a* after it crosses the
roller a to lie flatly and evenly.
Behind the said roller a' I show twin rollers c, c', the object of which is threefold,
first to spread the sheet or blank ribbon a* evenly upon the bed b, second, to feed the
ribbon forward in. the direction indicated by the arrows on figure 1, and, third to
condense and compress the said ribbon and prepare it for a further process herein-
after explained. The highest point of the lower feed-roller c¹ is flush with the
horizontal plane of the bed or platen 6, and this roller is journalled in bearings c²
bolted to the bottom of the upper bar of the main frame A. The upper roller c is
practically the evener and pressure roller for which reason the journals of this roller
are applied in the guiding slots of pillar blocks C, provided with adjusting screws C11
as shown in figure 1.
The axes of the two rollers c, c', are strictly parallel.
After the compressed sheet a* eaves the said rollers c, c¹ I have found in practice,
that it is liable to buckle up laterally.
To obviate this I employ side-guides D, which are open sheath-shaped portions
wedging and having laterally over-hanging lips d. At the point of the platen b
the sheet of metal is cut into strips, as will be hereinafter explained.

page_text: On one end of the journal of the feed-roller c¹ is keyed a ratchet-wheel c³ the teeth
of which are evenly spaced and pitched as shown in figure 1.
The
With the teeth of this wheel engages a spring-actuated pawl c which is pivoted
to a reciprocating lever c which is pivoted to the main frame A, at e.
front end of the said lever is pivoted to a rod c which receives vertical movement
from an eccentric g¹, on the horizontal transverse shaft B of a master gear-wheel E.
It will thus be observed that an intermittent rotary motion is imparted to the lower
feed-roller c¹ from the said nain shaft B. The main shaft B is journalled in boxes on
standards B' rising from the upper bar of the main frame A.
Below the discharge point x, of the platen 6 is a transverse hopper, which I shall
presently describe.
The standards B¹, have on their inner sides tenons f, f, shown in figure 3, which
afford vertical guides for a knife-bearing frame G, shewn in fig. 3, which receives
vertical reciprocating motion from eccentrics gġ keyed on the main shaft B, acting
through the medium of straps or links 92, 92. To this frame G, is suitably secured a
knife or shear G¹, which is adjustable and preferably set for operation in an inclined
position. My object being to cut the sheet transversely and squarely by the knife G¹
bolted against a fixed bar G³, shewn in figs. 4 & 3, with a clean shearing action.
During this act of severing a shot-blank-strip from the sheet a* its free end will
naturally drop. Now, for the purpose of presenting each shot-blank-strip evenly to
above
shot-forming rollers H, H¹, I employ my peculiarly constructed hopper F,
referred to This hopper is formed of an inclined rigid wall h² and vibrating wall h
which is pivoted at ³ to the upper bar of the frame A and provided with an arm i
bent to form a toe the said arm being acted on by a spring j, and is also acted
on at proper times by a tappet k, fixed to the shot-forming roller H¹. This shot-
forming roller is journalled in boxes supported by the lower bar of the frame A. On
one end of the shaft of the said roller H¹ is keyed a cog-wheel E', which engages
'with the main wheel E, and which also in turn engages with an idler E².
This idler engages with a cog-pinion wheel E3 which is keyed on the shaft of the
roll H. The two rollers H, H¹, are provided with grooves p, shewn in Fig. 2 & 1
which, when each roll is taken diametrically, present a semi-circle, the points pl, of
both rollers exactly coinciding, forming knife-edges which cut through and aid in
condensing the metal without waste.
J is a funnel for the front roll H. This funnel is closely adapted to the several
corrugations of this roll and in practice it may be filled with raw cotton, saturated
with water for the purpose of cleaning the several corrugations thereof and in part
acting as a lubricant.
I have above described my device for producing condensed bullets or shot of one
gauge or size from a sheet of metal or other material, I contemplate, and it is shown,
that the rollers H H¹ may be removed, and other rollers substituted for them, having
corrugations of various sizes. In doing this I prefer to adjust the lever c length-
wise and thus gauge the throw of the pawl c, and I shall change the ratchet-wheel c³
on the journal of the lower feed roller c¹.
It will be observed that the two rollers H H' rotate in the direction indicated by
the arrows thereon.
Also that these two drums are so respectively speeded that the drum H rotates
more rapidly than its fellow H'.
The object of this movement, is that after a shot-blank strip is received in the bite
of the two rollers it will be gradually rotated, sub-divided into bits, and these
bits condensed again, compressed and delivered in spherical form into a suitable
receiver.
It will also be observed that one jaw of the strip-blank hopper F, is actuated
synchronously with the feed, the cutting-off device, and the final condensing
rollers H H. Instead of giving vibration to the wall h¹, by a tappet k and the
arm i, this arm may be extended in an opposite direction so that it will be actuated
directly by the knife or shear cutter-frame G, thus giving a more positive movement
to the said wall, and at the same time a more sensitive movement.

page_text: It will be observed that the rollers H, H³, are of the same diameter, and that
these rollers are geared so that the roller H revolves more rapidly than the roller H'.
The object of this is, that the strips or blanks are evened between these rollers and cut
off squarely. Should both rollers have the same speed, the blank-strips falling between
them might be cut obliquely and the material wasted.
If desirable I may use a knife or shear G¹ which, if desired, is adjustable for the
purpose of setting it more or less obliquely to regulate the cut of the shear, and also.
to nicely compensate for the wear and grinding of the said knife or shear so that the
several steps shall be strictly synchronous.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
First. In a shot & bullet making machine a pair of corrugated rollers adapted to
cut and condense a blank strip and produce shot, as specified.
Second. In a shot & bullet making machine a pair of shot-forming rollers adapted
to rotate about their axes and provided with means whereby one roller is rotated
at a quarter the speed of the other, as and for the purpose set forth.
Third. In a shot & bullet making machine the combination of a sheet metal feeder,
a transverse cutter, and corrugated spherical forming-rollers, as specified.
Fourth. In a machine for producing spherical objects, the combination of a
sheet-metal feeding device, a condensing device for the sheet, and side-guides therefor
arranged between the sheet-metal roll-supplying device and strip knife or shear as
specified.
Fifth. The combination in a shot & bullet making machine of a guiding and
flattening roll at the front of a platen, and feed rollers one of which is adjustable,
and lateral guides arranged to guide the sheet on its way to the cutting devices, as
specified.
Sixth. The combination in a shot & bullet making machine of a sheet-supplying
roller, a guiding and flattening roller, a platen flush with the highest point of said
roller, two feed-and-condensing rollers, one of which is adjustable and the other
adapted to receive an intermittent rotative motion, a knife or shear for cutting off
strips from the sheet, a hopper for receiving these strips, and two rollers adapted
to sever the said strips and condense them into spheres, as specified.
Seventh. The combination in a shot & bullet making machine of two corrugated
cutting-and-condensing rollers, with a feed hopper one wall of which is adapted
to act first as an arresting-blade for the strips, and second as a means för
delivering the blank strip of lead straight to the bite of said rollers, as specified.
Eighth. The combination in a shot and bullet making machine, of rotative cutting,
condensing and moulding-rollers, having variable speeds, as specified.
Ninth. The combination in a shot and bullet making machine, of a sheet-blank
feeder, condenser and straightener or flattening device, a knife or shear adapted to
shear the sheet-blank into narrow strip-blanks, a hopper having an adjustable
wall, and rotating, cutting, condensing, and spherical forming grooved rollers, as
specified.
Tenth. In a machine for making spherical objects, the combination of a transverse
knife or shear adapted to shear blank strips from a sheet of material, a hopper
adapted to direct said strips and deliver them successively to rollers, and rollers
which have corrugated peripheries adapted to sub-divide blank strips without waste,
condense the bits into spheres and discharge them, as specified.
Eleventh. The combination of a moistening or lubricating device with the roller H¹
of a shot-making machine, as specified.
Twelfth. The combination with twin corrugated rollers, of a vertically movable
knife or shear adjustable as specified.
Thirteenth. In a machine adapted for producing from a sheet of pliable and
condensable material, moulded objects, consisting of the following instrumentalities ;
to wit, first a main frame having a solid platen, an evening-roller, a pair of flattening

page_text: and condensing rollers, actuated intermittently, lateral guides, a sash-frame having an
adjustable knife or shear, a feed-and-self-adjusting hopper, two rollers adapted to
cut, condense, and mould the spheres and discharge them; and devices for giving
intermittent rotative motion to the said feed-rollers, and simultaneously there with
giving vibrating movement to one side of the hopper, all as specified.
Fourteenth. In a shot & bullet making machine, a pair of corrugated rollers,
adapted to rotate in the same direction, as and for the purpose specified.
Fifteenth. In a shot-machine, a pair of shot-forming rollers adapted to rotate in
the same direction, and provided with means whereby one roll is rotated at a greater
speed than the other, as and for the purpose specified.
Dated this 28th May 1889
S. S. BROMHEAD,
97, Newgate Street, London, Agent for Applicant.