US557814A - richardson - Google Patents

Description

(ModeL) G. H. HARRINGTON & W. A. RICHARDSON.

EJEGTOR MECHANISM FOR REVOLVERS.

N0. 557,814. Patented Apr. 7, 1896.

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UNITED STATES PATENT OFFICE GILBERT H. HARRINGTON AND IL-LIAM A. RICHARDSON, OF WVOROESTER, MASSACHUSETTS, ASSIGNORS TO THE HARRINGTON & RICHARDSON ARMS COMPANY, OF SAME PLACE.

EJECTOR MECHANISM FOR REVOLVERS.

SPECIFICATION forming part of Letters Patent No. 557,814, dated April '7, 1896. Application filed December 22,1894. Serial No. 532,682. (ModeL) T (bZZ whom, it may concern: To enable others skilled in the art to which Be it known that we, GILBERT H. IIARRING- our invention appertains to better understand TON and \VILLIAM A. RIOHARDsON, of the city the nature and purpose thereof, we will now and county of IVorcester, State of Massachuproceed to describe it more in detail. setts, have invented certain new and useful Referring to the drawings, A represents the Improvements in Revolvers; and we do here revolver-frame, having the bearing A at its by declare that the following is a full, clear, forward end, to which the base B of barrel and exact description thereof, reference being Bis pivoted by means of our improved screw had to the accompanying drawings, forming a or axis-pin O. D is the extractor-lifter, con- IO part of this specification, and in which sisting of a circular disk having a hook D, Figurelrepresents a side view of a revolver adapted to engage with the inner end ofthe with thefront end unlocked and swung down spring, extractor-pin E, and an ear or proas in practice in the operation of extracting jection D adapted to engage with the end A the cartridges or shells from the cylinder,part of frame A to hold said disk from turning I 5 of the side being broken away to illustrate our when the barrel is swung down, as shown in improvements hereinafter described. Fig. 2 Fig. 1 of the drawings, to extract the empty represents a vertical section of that portion-of cartridge-shells. the revolver to which our said invention re- F is a flat spring attached to the inner edge lates, showing the parts in their normal posior periphery of the disk at a convenient point 2o tions prior to unlocking and swinging down between its lifter-hook D and projection D the front end, as aforesaid. Fig. 3 is a bottom Its free end curves up over the disk toward its edge view of the parts shown in Fig. 2. Fig. hook and bears at its outer side against the t is a detached view of the extractor-lifter underside of the extractor-pin for the purpose and its spring. Fig. 5 is an enlarged perof producing a constant friction thereon to 25 spective view of our improved pivot-screw or hold it and the cylinder G, to which it is ataxis-pin, which will be hereinafter described. tached,fro1n turning too freely when the cylin- Fig. 6 is a section taken at the point indicated der is not locked, or, in other words, when the by line a in Fig. 4, with the pivot-screw or arm is in its normal position ready for raisaXis-pin shown in side view in the position ing the hammer preparatory to firing. Said 8o 30 which it occupies in the extractor-lifter when s pring,it is obvious, serves the double purpose the parts are fitted in place in the revolver. of exertingaconstant friction upon the extrac- Figs. 7 and S are perspective views of two tor-pin, as aforesaid, and also to shift the exmodifications in the construction of the pivottractor-lifter forward and downward, so that screw or axis-pin, which will be hereinafter its projection will always engage with and 3 5 described; and Fig. 9 isa section through the hold against the projection A on frame A extractor-lifter and pivot-screw or axis-pin, to lock said extractor-lifter in the usual optaken at the point indicated by line b in eration of extracting the cartridge-shells. To Fig. 6. admit of said shifting movements of the ex- Our invention consists, in brief, of combintractorlifter, the circular transverse opening 4o ing the frame, barrel, spring, extractor-pin, D in the latter is made larger in diameter all and extractor-lifter, provided with a suitable around than the diameter of that part of the actuating-spring and a substantially round pivot-screw or axis-pin in said opening, so as transverse opening therethrough to receive to allow the spring F to shift said lifter into the pivot-screw or axis-pin, with a pivotthe required position for its projection D to 5 5 screw or axis-pin whose transverse or cross engage the end A of the frame A, as aforediameter at its point of contact with the eX- said. tractor-lifter, when fitted in the round openhile we prefer to make the opening 3 in ing thereof,is enough smaller than said round the extractor-lifter D round, as shown in the opening to admit of the usual lateral movedrawings, itwill be understood that this open- 50 ments of said extractor-lifter, as will be hereing need not necessarily be mathematically inafter more fully set forth. round to permit of the shifting movement using a round opening in the extractonlifter and a pivot-screw or axis-pin constructed as described is that it practically does away with the extreme accuracy of adjustment in making and fitting the parts (especially when the annular grooved or plain pivot-screws or axis-pins are used) which has heretofore been considered necessary by the old constructions, thereby materially reducing the cost of manufacture and at the same time enhancing the value of the arm.

Another advantageous feature which we claim is that by the use of a round instead of the customary oblong or similar-shaped openings the extractor-lifter has a free circular shifting movement on the pivot-screw or axispin as it is turned forward and downward, and therefore automatically assumes, with out friction, any position it is forced into by its spring and theaction of operating the arm. This and the advantage first described we claim are essential and important features.

Having now described our said invention, what we claim as new, and desire to secure by Letters Patent, is

In a revolving firearm, the combination with the frame, barrel, and extractor-pin, of an extractor-lifter spring, a pivot-screw or axis-pin, and an extractor-lifter having a round transverse opening through which said pivotscrew or axis-pin passes and which opening is larger in diameter than the diameter of that part of said pivot-screw or axispin in said opening, to permit of a free circular shifting movement of said ext actor-lifter, as well as a forward and downward movement thereof, substantially as and for the purposes set forth.

GILBERT II. HARRINGTON. WVILLIAM A. RICHARDSON. IV itnesses:

WALTER B. Nounsn, ALBERT A. BARKER.

above described, so long. as it is larger in diameter all around than the diameter of that part of the pivot-screw or axis-pin therein.

The pivot-screw or axis-pin may be made of various shapes to pass through the extractorlifter and at the same time admit of the afore said shifting movement of said lifter thereon, and we therefore do not limit ourselves to any special shape so long as the principle described is carried out-viz., of making that portion of said screw or axis-pin which comes within the limit of the two sides of the lifter around its opening of less transverse diameter than the size of said opening.

In Figs. 1, 2, 5, 6, and 9 we have shown the pivot-screw or axis-pin with an annular groove 0 formed therein at the above-mentioned point, the shoulders at each side of said groove coming at each side of said opening, while in Fig. 7 we have shown a pivotscrew or axis-pin with said groove extended only part way around the periphery thereof, in practice said grooved portion being arranged to come in line with the line of motion of the extractor-lifter, so as to permit its spring to force it forward and downward, as previously specified.

In Fig. 8 We have shown a plain pivotscreW or axis-pin of equal diameter of shank, which in practice is made of the proper transverse diameter to carry out substantially the same proportion in size to the opening in the lifter as the diameter of the grooved portion of the annular grooved screw or axis-pin is to said opening.

It will at once be apparent that the same result may be accomplished by the use of any of said constructions in connection with a round opening in the extractor-lifter, and we therefore do not limit ourselves to any special shape of pivot-screw or axis-pin in carrying out said principle.

One of the advantages which we claim of

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