US93653A - Improvement in revolving fire-arms - Google Patents

Description

R. WHITE.

Revlving Fire-Arm.

Patented Aug. 10, 1869.

@WMM

UNITED STATES PATENT @Errea ROLLIN WTHITE, OF LOVELL, MASSACHUSETTS.

IMPROVEMENT I REVOLVING FIRE-ARMS.

Specification forming part of Letters Patent No. 93,653, dated August 10, 1869.

Arnim and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, making part ot this specification, in which- Figure l'is a side elevation of a pistol on my improved plan; Fig. 2, a view ot' the under sidelhereot'; Fig. 3, a longitudinal section in the plane of the axis of the barrel, and Fig. 4 a cross-section taken at the line -A a of Fig. 3.

The same letters indicatelike partsin all the iigures.

My said invention is for the purpose of discharging the metallic cartridge-cases from the chambers in that class of repeating tire-aims which consists of a cylinder having a series of chambers bored entirely through, and which ,is rotatedto bring the several chambers successively in line with a fixed barrel to be tired.

:A strap ot' metal, a, projectingrearward from the barrel b, is hinged at. c to the upper part of therecoil-shield d, making part of the lockfraipe, and another but downward projection, 6 i'rom the rear part ot' the barrel lits intoiand is secured by a spring-latch in a projectionJ', of. the lock frame.

The many-chambered cylinderg is mounted between the projection f of thelock-frame and the strap a on the end of the barrel. The chambers h of the cylinder are bored entirely through, so that metallic-cased cartridges can be inserted from the rear end of the cylinder when the barrel is unlatched and lifted up, and when the barrel is'brought down and latched the recoil-shield incloses the rear end ot the cylinder and shuts in the cartridges. The central bore of the cylinder is fitted on a tube, i,

which isinserted fro n1 the rear end, the forward end ot' whichis fitted to and secured in the projection e from the under part of the barrel'. The rear portion of this tube is of` greater diameter than the forward portion, and the central bore of the cylinder is of corresponding form, so that when the tube is secured in place the cylinder cannot slide back. To the bore of this tube is fitted acentral cylindrical spindle,

j, which is Iree to slide therein longitudinally,

when broughtin contact with, [its against the rear end ot' the cylinder, and between it and the recoil-shield; and to this plate or disk,and` near the periphery thereof, is secured a cylindrical pin, on, parallel with the spindle j, and tted to slide in a small hole bored in the cylinder near the periphery and between any'two of the chambers.. 'lhe object ot' this cylindrical Ipin is to cause the plate or disk l to turn with the c,\ linder, so that any equivalentmeans may besubstituted for this piu. The rear end ot' the hub kof the plate or disk l is tubular, and when the barrel is locked in place this tubular projection turns in an annular recess in the recoil-shield, the central projection, u, fitting into the hollow of the tubular hub and acting as a pivot to the rear end ofthe spindle.

Ratchet-teeth are formed in the rear edge ot' the. tubular hub to receive the action ot'N the mechanism ot the lock to turn the cylinder in manner well known to those acquainted with this class of repeating-firms.

' The forward end ot' the spindlejis connected `by a swiveljoint with a reciprocating carrier,

w, to which a pair of links, o 0, are hinged, and at their-opposite ends are also hinged to the two forks of a hand-lever,p, which turns on fulcrumpins at q, near the rear end ot' the barrel, by the movement of which the spindlej, with its plate or disk l, can be pushed back when the barrel is unlatched and thrown up to eX- pose the rear end of the cylinder. When the plate or disk is drawn forward in contact with the cylinder the leverpvlies under the barrel, and is there held by a spring-catch at r. The plate or disk l is bored through to correspond with the chambers in the cylinder, and as the i l l i sime diameter as the cylinder, so .as to' entirely surround each cartridge, and as the force of the discharge tends to expand the cases, and this would tend to make the cartridge cases bind in the holes in the plate or disk of the ejector, so that they would not readily drop outl ofthe plate after being drawn ont of the cham'-y bes, I effectuall y prevent such binding by forming the rear end ot the cylinder with projecting flanges t and make the ejectonplate to t outside ot' such anges. The. outer surface ot these flanges I prefer to have beveled andthe holes in the'plate o1; ejector made of a form to tit over such bevel. 1n this way the chambers receive and resist the expansion ot'the cartridge- `cases, and the friction induced by such bindingis readily overcome by the lever-power connected with the ejector, and by which it is operated. This part of my invention may be dispensed with and still retain 4some ot' the advantages due to thc other improvements.

Instead of making the ejector-plate of the full diameter of the cylinder, a recess may be made in the rear end of the cylinder equal in depth to'tbethiekness ofthe plate, to receive the plate, which maybe made ofjust sufficient diameter to extend underaportion ofthe flange ot' each of the cartridges, as represented by the red line s in Fig. 4, which shows a portion ofthe plate so made; and althoughl have described my said invention as applied toa manychambered cylinder in which the vtlanged cartridges are inserted at the rear end, I do not i `vious that it is equally applicable to acylinder having the chambers so formed that the tianged cartridges are inserted at the t'ront end,"fhe flanges of the cartridges being also at the front end.

What I claim as my invention, 4and desire to secure by Letters Patent, is

i1. In combination with a revolving manychambered cylinder anda cartridge-ejector revolving therewith and moved by a reciprocating non-rotating carrier, w, a swivel-joint to allow'the ejector to turn independentlyot' the carrier, substantially as described.

2. The cartridge-ejector and many-chambered cylinder, in combination with a lever to operate the ejector, substantially as described.

3. In combination with the many-chambered cylinder and cartridge-ejector, a projecting flange, t, around or partially around the end ot` each chamber, substantially as described, to prevent the cartridgecase n'from binding in the ejector, as set forth.

4. In combination with the revolving cylinder and ejector, the tubet',substantially asand for the purpose described.4 l

ROLLIN WHITE. Witnesses:

WALTER CURTIS, GEO. L. ROBERTS..

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