US193836A - Improvement in revolving fire-arms - Google Patents

Description

D..sM1TH.

REVOLVING FIREfARMs. l

Patented Aug. 7,1877.

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hUNITED STATES PATENT 'OEEroE.

DExTEE SMITH, oF SPEINGEiELD, MASSAoHUsETTS, AsSIGNoE To DANIEL B. wEssoN, 0F SAME PLAGE.

, iMPRovEMi-:NT'IN REvoLvlNe FIRE-ARMS.

' Specification forming part of Letters Patent No. 193,836, dated August 7, 1877; application filed June 12,1817.

To all whom it may concern:

Be it known that I, DEXTER SMITH, of Springfield, in the1 State of Massachusetts,

have invented a new and useful Improvement .to engage with the xed projection, and, by

tilting either the barrel or the frame, to extract the empty shell from the chamber, the nature and character of the invention being more fully hereinafter described.

, Figure 1 represents one modification of my invention, and Fig. 2 represents another modij fication of the same.

In the drawings, A represents the frame of a revolving fire-arm, to which my invention is applicable. B represents the barrel, and C the chambered cylinder, arranged to revolve on the tubular pivot or base pin h, fixed to the arm just beneath the barrel B, and the extractor-stem b extends into this tubular pivot or base pin, in the usual manner. Y Y

A recess is made in the arm in front of the base-pin h, and, as arranged in the modification shown in Fig. 1, into this recess is fitted a tube, s, to slide to and fro therein, with a spline therein, and a pin` inserted, or other convenient arrangement for limiting the slid- 'ig movement of the tube.

A rod or sliding piece, a, is inserted into this tube, with a spring, n, wound upon the forward and smaller part, said spring bearing, at its rear end, against a shoulder or projection on the sliding piece, and at its forward end against a shoulder in the forward end of the tube s, the end of the piece a projecting through the forward end of the tube, and having a button or knob, 1c, secured thereto.

In Fig. 1 a small projection, c, is made upon the sliding piece a, which, when the barrel is locked to the frame, stands just in front of the fixed projection f on the joint D.

The extractor and its stem b, and their arl rangement within the cylinder with the actu- Yating-spring m, are the same as ordinarily used. 1n Fig. 1 the extractorstem b is made somewhat short, or of about the same length as the cylinder, with a screw, e, turned into the end ofthe stem, to serve as a shoulder for the end of the spring m to bear against, and the sliding piece a is directly in front of this screw.

As arranged in Fig. l, the operation of my invention is as follows: With the parts all in place, as Shown in the drawings, it' the frame A be held stationary, and the forward end of the barrel be tilted down, the small projection o upon the sliding piece a comes into contact with the fixed projection f on the joint D on the frame part of the arm; and while this tilting movement continues the sliding piece is pushed back and upward against the extractorstem and screw e, forcing the extractor back and removing the shells. During the' latter part of this backward movement the sliding 'piece a, moving in a straight line while being carried around the joint, finally moves so far away from the fixed projection f that the latter loses contact with the point c, and the extractor aud stem b are quickly carried back into the cylinder, and the sliding piece a and the tube s (which has moved with the sliding piece) back into their original position in their recess. As the forward end of the barrel is then tilted up to lock the barrel to the frame, the point c is then in front of the fixed projection f, instead of behind it-,as at first, and as the barrel moves up, the point c comes in contact with the front side of the projection f, and the sliding piece is carried forward to the position shown in dotted lines in Fig. 1, or until the point cis carried forward so far as to lose contact with the projection f, when the spring n carries the sliding piece a quickly backward, with the point c behind the projection f, or into the original position shown in Fig. l. y

The samemechanical equivalents, with the same principle of operation, are shown in Fig.

2, in which b isfthe extractor-stem, enlarged;

to the recess beneath the barrel, that part of it forward of the shoulder t" being made smaller, and the sliding piece a in Fig. 2 is made in the form of an annular collar, and slides freely to and froon the small part of the stem, a spring, n, placed upon this part of the stem, and bearing` at its forward end against a knob or button, k, secured to the end of the stem, or made thereon, operating f LI claim as new isto keep the collar or sliding piece a back against the shoulder i. l

The operation in this modication is precisely similar to thatl already hereinbefore -described-that is to say, as the barrelE B is tilted down, the fixed' projection f comes in contact with the front side of the point,` c, which, in this case, is-made annular, andthe extractor-stem and the sliding piece-a are carried-back and upward until-the annular point closes its contact with the projection f, and

the spring m forces the stein and sliding piece a quickly back into theirl original position,

the projection f being'then in the rear of the.

sliding piece a. As the barrel is then tilted upward again the projection c on the sliding 5 piece comes in contact witlr the i'rontvsideot' Y the projection f, and the sliding piece'iscar, ried forward until it loses contact with the projection, when it is forced quickly to the rear side of the latter by the spring n into its `originalposition, as shown in Fig. 2.

It is evident that this-invention isequally Wellladapted to be used upon all tire-arms in which the barrel is pivoted to and tilts upon aframe orvbreech,yand the extractor can be larran ged to remove one ormore shells, according to the nature of the arm, Without departingfrom the principle of operation, as above described;

Having thus described my invention, what In an automatic extractor for fire-arms, the combination of a fixed projection vizithaslid ing piece arrangedrin co,nnection,with theextractorfstem, said sliding-piece 11a-vin ga back,- ward `movementwhen len gagedl with thexedj projection. to. extract the shells, and; hayingA alsoaf movement-forward; independent of the. extractor, to enable it lto-engage Withthe fixed projection, and placeitself in p ositioufto ex.,- tract the shells, substantiallyfas,descri-bkeL:

DEXTER` SMITH.

Witnesses:

T.- A. CURTIS, E. A. THAYER.Y

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