US35275A - Improvement in machines for casting bullets - Google Patents

Description

y @traf `To @ZZ whom/.it may concern." Beit .known that we, ROBERT CHADWIOK and NORMAN ALLEN, both ofthe city of Hartford,in the countyofHartford andState ofConneeticut, have invented a new and Improved.` i Machine for CastingV Bullets; and we do hereby declare that` the following is a full, clear, "and exact description'` of thelsame, reference being had to the accompanying drawings, Y forming part of this specification, in which- Figurelis a top view of the machine. Fig.

`Fig. 3`is ahorizontal section ofthe'same.

Similar letters of reference indicate corre ysponding parts in the several iigures.

This invention consists in a machine cour posed of a series of bulletmolds, such as are `used in casting bullets byhand, pivoted to a circular frame, vwhich isarranged to rotate about a central shaft, and which has attached to it a series of levers with appendages which are caused to open and close the molds by the rotation of the levers with the molds around a suitable system of stationary cams. rlhe molds `when in a closedcondition have the molten lead poured into them one after the other by Vone or more attendants, and after the metalis set within them are opened yto discharge the bullets by the rotation of the eircular frame.

y To enable those skilled in the artto make i and use our invention,we will proceed to describe its construction and operation.

A is a base furnished with a Xed socket, B, in which a shaft, C, is firmly secured in aposition slightly inclined from a vertical line.

D is a collar firmly secured to the shaft C for the support of the circular rotating frame E F, which is bored centrally to iit and ro- `tate upon the upper part of the shaft.. vThis frameis made of two separate pieces-viz., a

`wheel-like piece, E, and a ring, F, secured on the top of the rim of E by screw-bolts b b with intervening studs, a a, to` keep the ring at a `suitable distance froni E for the reception of the molds G Gbetween them. The said-molds are or may be constructed like ordinary hand bullet-molds, and are secured in the rotating frame by the elongation of their j oint-pins c c to `pass through the upper andlower parts of the ;trame. The molds are1 arranged with their 2 is a central vertical section of the saine.

rica.

y i `ROBERT oHADwioK AND NORMAN ALLEN, or HAn'rroaD, looNNno'ricUT,

" i AssIGNoRsro nOBnn/r oi-iAiowIoK.1

lwlPROVsivliau'r lN'iviAcl-lmss FOR OAS-ntie BULLETS.

Specification forming part of` Letters Patent No. 35,275, dated May 13,1862.

4handlesg g `projecting outward beyond the periphery of the rotating frame, and whenv they are closed their mouths are presented opposite to recesses d d in the upper part, F, ot' the sai-d frame. rlhree pairs of nippers only are shown, but there may be a larger number it' the rotating' frame is made of large enough circumference. The rotating frame and nippers are slightly inclined from the horizontal position, being perpendicular to the inclined shaft C.

H H are the levers for opening and closing the molds, one for each mold, pivoted by fulcrum-pinsf to rigid hangers I secured to the bottom of therotating frame.l Y The upper portions of these levers which are farthest from the shaft are iiattened and tapered,as shown at 7L h,

to operate as wedges between the handles of the molds to open them, and they have attached Lto them inverted fork-like pieces Mto lap over the handles g g and operate thereon as wedges to close the molds, and the upper ends have attached weights j j, which tend to pull them down and make the fork-like pieces@ i close the molds. J J are two cams firmly secured on the lower part ofthe shaft C, the duty of the cam .I being to operate upon the inner and upper surfaces of the lower portions of the levers to make them open the molds, and the duty of J to operate upon the outer and lower surfaces of the said portions of the levers to start them in their movement to close theY molds, the latter movement being for the most part produced and completed by the action of the weightsjj.

K is astationary trough secured to the shaft C for the purpose of catching any met-al that may overiow in iilling the molds.

L isa funnel attached securely to the fixedv lowerside of the inclined shaft and turns the frame EF in the direetion of the arrow shown in Fig. l as often as required by applying his other hand to the handles of the molds to bring them successively to a position to have the lead poured into them. The cams are so arranged as to canse the closing of the molds before their arrival in this position. As eaeh mold is brought to this position he pours the lead into it and turns the machine to bring` the next one to the same position and repeats the pouring. As the lower ends of the levers of the several molds arrive and pass in contact with the outer surface of the eani .l the said ends of the levers are moved outward from the shaft, and their upper ends are thus moved between the handles of the molds toward their pivots c c, and their wedge-like portions lt Il are thereby caused to force apart the handles and open the molds. to release the bullets which drop out into and through the funnel L. As the rotation of the frame, molds, and levers is Continued the lower portions of the levers come in Contact with and this movement being thus commenced is continued by the weight j, causing the inelined sides of the forks i t' by their action on the outer sides of the handles g g to close the molds ready for being refilled with molten lead on their arrival at the proper position. The cam J" may not be necessary as the Weights jj may be heavy enough to affect the whole operation of closing` the molds; but the said cam is desirable to insure the starting of the levers to close the molds and thereby prevent the possibility of any failure in that part of the operationn The molds may be of any form to make either spherical or elongated bullets.

That We claim as our inventiomand desire to secure by Letters Patent, is-

The combination of a rotating mold-frame, E F, a series of molds, G G, a system oflevers1 H H, and a earn or cams, the whole applied and arranged to operate substantially as herein specified.

ROBERT CHADWIGK. NORMAN ALLEN.

the inner surface of the cam J and are thereby started toward the shaft, causing,` the upper portions of the levers to move outward, l

Witnesses Gno. GILMAN, l-I. XV. KING.

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