US1908034A - Firearm - Google Patents

Description

c. c. LooMls May 9, 1933.

FIREARM Filed May 28, 1931 IN VEN TOR.

TORNEYS.

Patented May 9, 1933 CRAWFORD C. LOOIVIIS, OF ILON, NEW YORK, ASSIGNOR T0 REMINGTON COMPANY, INC., A CORPORATION 0F DELAWARE ARMS FIREARM Application filed May 28,

A nism is actuated by manipulation of a handle connected with a reciprocating breech bolt; andthe slideaction type, in which the breech mechanism ordinarily comprises a block having a somewhat complex movement, rather than a simple rectilinear reciprocation, andthe breech and cartridge transferring mechanism is actuated by'recipiocating a forearm arranged below the barrel. The bolt action type has the advantages of simple andv rugged construction;l

and the slide action type, the advantage of more ready and simple manipulation.

rThe present invention contemplates a breech mechanism of the bolt action type provided with means whereby it may be operated by the reciprocation of a forearm.

)Vith these and other objects in view, the invention consists in the novel constructions, combinations, and arrangements of parts, hereinafter more fully described, and illustrated in the drawing, in which:

Fig. 1 is a fragmentary side elevation of a firearm embodying the present invention.

2 is a fragmentary side elevation of the receiver portion of the firearm, the stock being sectioned and a portion of the receiver wall being broken away to show certain interior mechanism.

Fig. 3 is a fragmentary, top plan view of a firearm embodying the present invention, the breech being closed.

Fig. 4 is a top plan View of the receiver and a fragment of the barrel, the breech being open` and a part of the wall of the breech cover being broken away.

Figf5 is a section on the line 5-5 of Fig. 1.

Fig. 6 is a section on the line 6-6 of Fig. 1.

Fig. 7 is a section on the line 7-7 of Fig. 1.

1931. Serial No. 540,642.

The firearm comprisesy a barrel k10 anda receiver .11, which ispreferably madefof a single piece of folded sheet metal, rhaving an upper substantially cylindrical bolt ,re-vceiving portion apertured to accommodate,

bolt 'operating' and locking devices,.and to provide an ejection opening; and-a lower portion comprising a pair of spaced substantially parallel flanges 12 and 13. Transverse sections of this sheet metal receiver are shownin Figs. 5 and 6, and its constructionV is more fully described in'my cor-'pending application, Serial No. 540,641, filedvofeven date herewith. The forward ends of the flanges 12 and 13 are spaced and joined by a block 14, the lower part of which is elongated, as shown in Fig. 2, to receive a magazine tube 15. Said block 14 is likewise apertured to provide a passage from said magazine to said receiver, and. comprises a downwardly extending lug ladapted to receive `a take-down screw 17 ,by which a stock 18'is secured to the barrel vand receiver assembly.

The construction of the bolt is described in detail in my co-pending application, above-identified. Said'bolt reciprocates in the receiver, but it does notl rotate. An intermediate section of the bolt is surrounded by an operating ring 19 (Figs. 2 and 6) arranged for rotation upon the bolt. The ring 19 is provided with oppositely disposed projections 2O (Fig. 6) and 21 (Fig. 4) which are received in locking apertures in the wall of the receiver 11. The aperture which receives the projection 20 Iis a simple slot so located as to come opposite the projection 20 when the bolt is in breech closing position. The aperture which receives the projection 21 is the transversely extending portion of an L-slot 211, the` longitudinal part of which Iis traversed by said projection as the bolt is reciprocated. rlhe breech bolt being forward in breech closing position, and being locked by the engagement` of lugs 20 and 21 with their co-operating locking surfaces, the opening of the breech requires two movements: iirst, the rotation of the ring 19 to disengage projections 20 and 21 from their slots in the receiver; and second, the

retraction of the bolt. Both of these movements are effected by means of a circular lug 22, associated with ring 19, and shown as integral with or rigidly secured to the locking projection 21. Said lug 22 enters a cam slot 23 in a reciprocating operating member or receiver cover 24C. Member 24 is of generally cylindrical outline, conforming to the contour of the upper part of the receiver, and is arranged to be reciprocated on the receiver by the operation of a forearm 25 connected to operating links or bars 26 and 27 which in turn are connected to the cover.

VCover 2li and links 2G and 27 are preferably integral, and formed from a single piece of sheet metal. Fig. 2 shows the breech bolt forward and locked, the lug ..2 being in the rear end of the slot 23. With the parts in this position, if the forearm 25, and with it the cover 2li, is drawn rearwardly, the lug 22 first travels to the opposite end of the slot 23 and, owing to the inclination of the slot this movement rotates the ring 19 to disengage projections 2O and 21 from the receiver. The parts are shown in this position in Fig. 3, the squared projection or locking lug 21 being in alignment with the 1ongitudinal portion of the receiver slot in which said projection travels. Further rearward movement of cover member 24 will obviously retract the breech bolt, bringing the parts to the position shown in Fig. 4c. Upon the forward stroke of the action bar, the movements just described are reversed, the breech bolt being first brought to its forward breech closing position and the ring 19 subsequently rotated to lock the bolt.

The forearm 25 preferably encircles the magazine tube 15 and is arranged for reciprocation with respect to said tube, the mounting devices comprising a bushing 2,8 which encircles the tube and is threaded to receive screws 29 and 30 arranged in suitable reinforcing plugs 31 and 32 in the sides of the forearm. rllhe bushing28 is channeled to receive the forward ends of the bars or links 26 and 27 which are apertured to receive the screws 29 and 30; thus, securing the forearm to the links.

A suitable fire control and cartridge transferring mechanism are more fully illustrated and described in my co-pending application, above-identified. For the purpose of the present application, it is sufficient to say that a suitable carrier device in the receiver is adapted to receive a cartridge delivered fromk the magazine, elevate such cartridge into alignment with the chamber, insert the cartridge in the chamber, and be restored to depressed position in alignment with the magazine, all under the control of the breech bolt or parts associated therewith.

The embodiment of the invention herein described, and illustrated in the drawing, is to be understood as illustrative, rather than restrictive, the invention being susceptible of embodiment in many other forms, all falling within the scope of the appended claims.

What is claimed is:

1. A. firearm-comprising a barrel, a sheet metal receiver adapted to house breech mechanism, a sheet metal breech mechanism operating device mounted upon and substantially covering said receiver and adapted for reciprocation but not rotation. relative to saidreceiver, and operating means for said device comprising a fore-end supported beneath said barrel.`

2. In a firearm comprising a barrel, a sheet metal receiver adapted to house a breech mechanism a reciprocating, non-rotating breech mechanism operating device comprising a sheet metal cover extending the length of and substantially surrounding said receiver, operating links extending forward from and integral with said sheet metal cover, and a reciprocating fore-end supported beneath said barrel and secured to said links.

3. A firearm comprising a receiver adapted to house breech mechanism, an operating lug for said breech mechanism projecting from said receiver, a reciprocating, non-rotating housing extending the length of said receiver and comprising a cam slot adapted to receive said lug, and means for reciproeating said housing.

t. In a firearm comprising a breech bolt adapted for reciprocating movement, a locking and operating device for said breech bolt comprising a ring mounted for rotation thereon, locking lugs projecting from said ring.4 an operating lug associated with said ring, and a manual operating device adapted for reciprocating movement and comprising a cam slot adapted to receive said lug.

5. A firearm comprising a receiver adapted to contain a reciprocating breech bolt, a breech bolt reciprocable therein, breech bolt locking apertures in said receiver, cooperating locking devices associated with said breech. bolt and adapted to be rotated into engagement with said locking apertures, an operating lug associated with said breech bolt and locking devices, and means for rotating said locking devices and reciprocating said breech bolt comprising a reciprocating member provided with a cam slot adapted to receive said lue. i

6. A firearm comprising a barrel, a reciprocating non-rotating breech bolt, a ring rotatably mounted on said breech bolt, locking lugs projecting from said ring, an operating lug extending from one of said locking lugs, a reciprocating, non-rotating breech cover comprising a cam slot adapted to receive said operating lug, and connections from said cover to a fore-end supported beneath said barrel.

7 A firearm comprising a receiver of sheet metal, a reciprocating, non-rotating breech bolt mounted in said receiver, a ring rotatably mounted on a portion of said breech bolt intermediate its ends, locking lugs projecting from said ring7 locking apertures in said sheet metal receiver adapted to receive said lugs, an operating lug associated with one of said locking lugs, a reciprocating, non-rotating sheet metal breech cover extending substantially the length of said receiver and provided With a cam slot adapted to receive said operating lug7 and means for reciprocating said breech cover.

CRAWFORD C. LOOMIS.

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