US71075A - spillman - Google Patents

Description

2 Sheets-Sheet 1.

w; SPILLMAN.

Bullet Machine.

Patented Nov. 19, 1867.

ERS FNQTq-LITMWRAMER, WASHINGTON. D, c.

2 Sheets-Sheet W. SPILLMANE Bullet Machine.

' I Patented Nov. 19, 1867.

@niteh tater. {3mm @ffirr.

-W. SPILLMAN, OF MARION STATION, MISSISSIPPI.

Letters Patent No. 71,075, dated November 19, 1867.

IMPROVED BULLET MACHINE.

TO ALL WHOM IT MAY CONCERN:

Be it known that I, W. SPILLMAN, of Marion Station, in the county of Landerdale, and State of Mississippi, have invented a new and improved Bullet Machine and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable those skilled in the art to make and use tlle'same, reforcnce being had to the accompanying drawings, forming part of this specification, in which- Figure 1 is a. side view of the device for forming spherical bullets. I

Figure 2 is a top view of the machine, showing the devices for forming spherical and conical bullets.

Figure 3 is avertical section taken in the line a: x, fig. 2.

Figure 4, a vertical section taken in the line 3 3 fig. 2.

Figure 5, a modification.

Similar letters of reference indicate corresponding parts.

This invention relates to improved devices for forming bullets or mini balls, and consists in revolving disks or rollers, having one or more eccentric grooves cut inthe'face of their peripheries, in combination with cams and impinging-rollers or stationary dies, so constructed and arranged as to compress and shape cylindrical sections of lcad,-fed into the machine, as to form spherical or conical balls, as desired.

Ais a strong frame for the supportof the machinery required. The devices for making spherical and conical balls differ somewhat in construction, but both are shown connected in the same machine in the drawings, fig. 2. On the shaft S S, operated by hand-crank B or power, are hung the revolving rollers for compressing the bullets. For making round bullets, a roller, 0, is hung on the shaft S S, and its periphery is grooved with one or more grooves, as desired, the groove commencing at some point of the circumference quite shallow, and as wide as the cylinder of lead which is to form the bullet is long, and gradually narrowing in width and increasing in depth, until it reaches about three-quarters of the circumference from the starting-point, when i the groove becomes semicircular, and of the diameter of the bullet to be formed, which semicircular shape is continued around the periphery of the rollers, to the place of beginning. On one side of thecircumfercnce of the roller 0 is placed a stationary die, D, which fits around the roller, with a corresponding groove beginning wide at the top, to receive the cylindrical piece of lead, and gradually narrowing and deepening until near the bottom of the, stationary die, when the groove also becomes semicircular, to match the semicircular part of the groove in the roller 0. At the upper side of the machine a feed-tube, a, is placediat one side, through which round bars of lead are fed into the formingroller and die. The bar of lead is cut off the proper length by a shear-knife, Z1, attached to a shaft, E, which is worked by a. rod, 0, connected with an eccentric, F, placed on the side of the frame, and on the shaft S S. The knife 5 cuts off a piece oflcad while the roller C is rotating, to form the bullet. This piece of lead is held in a. recess by means of a catch, '01, until the forming=roller 0 comes around to the point ready to receive it, when the catch is tripped by a tappet, e, on the circumference of the eccentric F. As soon as the tappet 8 passes, a. spring, g, throws the catch into place itgain, ready to receive and hold another piece of lead to form the next bullet. The catch (1 operates by a flap in the receiis, below the shear-knife b, and above the roller C and the die D. When the roller 0 is revolved, a cylindrical piece of lead drops between it and the upper side of the stationary die D. The motion of the roller turns the lead around andforms the bullet or ball. The ends of the cylinder arc first pressed, owing to the form of the grooves at that point, and gradually the pressure increases by the converging tendency of the grooves, until, by the rapid rotation of the piece of lead, it becomes perfectly spherical bctweenthe semicircular portions'of the roller 0 and the die, D, and the finished bullet is discharged below, It is obvious that the periphery of the roller 0 may be cut into a number of grooves, as shown in fig. 5, to form a. number of bullets at the same time.

For making conical bullets or mini balls, a. similar roller, 0', has its periphery formed with aconcave face, beginning at a certain point shallow, and gradually assuming the form required to shape the surface of a mini ball, as shown in the drawings. At the upper part of the machine, where, as before, a piece of the bar of lead is cut off from a feed-tube, a, two rollers, G G, are hung in the end of a bentlever, H, facing tberoller O. The rollers G G have their faces curved to the shape of a mini ball, and the surface of the lower roll, G, is scored or checked diagonally, to hold the lead firmly as it bears against them when the ball is forming. The surface of the concave forming-surfaceof the roller 0. is also checked or scored diagonally. For cutting off the piece of lead to make a mini ball, a simple device is adopted, by sharpening one side of the roller 0, which is formed by the gradual curve of the periphery to fit the bullet," so that the bar of lead is severed by the edge of the roller while it revolves. The rollers G G are regulated in their pressure bya cam, L on the side of the forming-roller C, which bears against one end of the.bei1t lever H, in connection with a spring, Iz,.fig. 3. The face of the cam I is so formed that the rollers G G are placed at their maximum distance from the formingroller C at the beginning of the operation in making a bullet, and are gradually brought towards the roller, as the operation proceeds, to press the lead into shape, until the ball is finished, inthe same manner as before described in making a spherical bullet whcn thc rollers recede to admit another piece of load, and the operation is repeated. Between the rollers G- G', on one side, is fixed a former-point or projection, i, for making the cavity in the rear of themini'e ball, It has a cutting edge, to remove any excess of lead, and make the bullet smooth. Infig. 4 is shown a modified arrangement for making mini balls, a cam, is, encompassing the formingroller C, being substituted for the rollers G G, which cam is enclosed in a sliding box, L, that is shifted from side to side by the cam I, to form the bullet, as before. I

Having described my invention, I claim as new, and desire to secure by Letters Patent- 1. The combination and arrangement of the forming-roller C, the stationary die D, and the eccentric F, constructed and operating substantially as and for the purposeherein described.

2. The shear-knife b, operated by the eccentric F, combined with the catch d, operated by the tappet e and a the spring g, as and for the purpose specified. v I

3. The forming-roller 0, combined with the rollers G'G, the bent lever H, the camI, and the spring a, l constructed and operating substantially as and for the purpose set forth.

The above specification of my invention si'gncd'by me this 29th day of July,-1867. W. 'SPILLMAN. Witnesses:

A. WESTBROOK, D. W. FORD.

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