US536618A - Andrew fyrberg - Google Patents

Description

(No Model.)

A. FYRBERGQ EJEG'IOR FOR REVOLVERS.

No. 536,618. Patented Apr. 2, 1895 arr-122555 at";

- UNITED ."rATEs ATENT FFICE...

HARRINGTON & RICHARDSON ARMS COMPANY, or SAME PLACE.

" IEJ ECTOR FOR REyoLvsRs.

' .SPECIFICA'IION=-forming part of Lette'rs m m. 536,618, dated'April 2,1895.

. Applicatioufiled September ,1894. 'serialnmazsesv. (Nomodeld Z'o'all whom it nea/y cohcerrir Be it known that, I, ANDREW of Massachusetts, have invented certain new and useful Improvements in Revolvers; and

I I do hereby declare that the following is a full,

. to illustrate myimprovement applied thereto.

Fig. 2 represents a vertical section of that portion of the revolver. to JVhlCh said inven tion relates, showing the parts in their normal positions before the barrel is unlocked and broken down as aforesaid. Fig. 3 is,

a bottom, edge view of the parts shown in" Fig. 2, and Fig. 4 is a detached view of the extractor-lifter and its spring, previously al-.

luded to.

To enable others skilled in the art towhich my invention appertains to better understand the nature and purpose thereof, Iwillnow-p'rovceed to describe it more in detail.

In the drawings, A represents the revolven .frame, having the hearing A at its forward, end to which the base 13 of the barrel B is pivoted by means of the screw a, as usual.

0, is the extractor-lifter,consisting of a cir-.

cular disk having a hook b'adapted to engage with the inner end of the spring extractor-pin c, and an ear or projection (1, adapted to en gage with the end 6, of frame A, to hold said disk from turnin g in forcing out the extractor to eject the empty cartridge shells by ,swinging down the barrel in the usual way.

I), is a spring, preferably made of fiat wire,

and attached to the inner edge or periphery of the disk at a convenient'point between the lifter-hook b and projection d, substantiallyas shown in the drawings. Its free end curves up over the disk toward its hook and bears at its outer side upon the under side of the extractor-pin; thus producing a constant friction thereon to hold the same and the cylinder E, to which it is attached, from turning 7 FYRBERG, ofthe city and countyof Worcester -and State too freely when the cylinder is not locked, or in other words, when the arm is in its normal position ready for raising the hammer preparatory tofiring. Said spring not only serves 55 to impart said friction to hold the cylinder fromturning. too easily; but also, by b earing on the under side of the extractor-pin, as aforesaid,exertsacoustant,outward pressure .upon the extractor-lifter to hold it so that its 6c projection will always catch and hold against A the end c of theframe to lock said extractorlitter in the usual operation of extracting the empty cartridge shells. To admit of said outward movements of the extractor-lifter, its 63 central opening f is made oblong in'shape as is shown in the drawings. I 3

I am aware thatit is not broadly new to provide special means for imparting frictional power to hold the cylinder of a revolving fire- 7o arm from turning too easily. I am alsoaware that extractor-lifters similar in construction 3 and operation to the one herein shown have heretoforebeen used, having aspring for ir'nparting an outward yielding pressure thereon.- 7 5- for the purpose herein stated, and I therefore make no claim to either feature independ ently. It is believed to be now, however, to so attach and dispose the extractor -lifter spring in the manner herein set forth, whereby 8o the same may be made to serve the'double purpose specified.

By said construction and arrangementthe mechanism of the revolver to which my in- .vention relates is greatly simplifiedfand im 85 pr0v d; is rendered less liable to impairment in use, and when out'of order'it is simply nee; vessary to remove the pivot screw a. to reach the parts for repairs or renewal, without d'e-' 1 taching or disturbing any-01": the other parts 0 of the arm, as is now .necessary'by the old constructions for efiecting the purposes herein set forth. In this instance, I' have shown a bushing g, in the opening f-of the extractorlifter, over the transverse screw a, and-which 5 I prefer to use in practice, but as it is an inessential feature to the carrying out of my invention, I do not limit myself to the use thereof. I

Having now described said invention, what roo I claim therein as new, and desire to secure by Letters Patent, is-- In a revolving fire-arm the frame A having the usual shouider'e and bearing A; the barrel B having its base pivoted to said hearing A by means of the transverse screw a, said screw, and the spring extractor pin 0; in comb ina'tion with the extractor-lifter 0 having the projection d adapted to engage with said end eof frame A, and also'having'the-liftinghook b adapted to engagewith the inner end to of the extractonpin e; and spring D, attached at its lower end to the inner edge or pe riphery of the extractor-lifter, then curving up over said lifter toward its hook'and bearing at its outer side against the under side of the extractor-pin, substantially as and for the x5 purpose set forth. 7 r ANDREW FYRBERG. Witnesses: A. A. BARKER,

. O. FOB EsT-WEssoN,

Images