US1040881A - Firearm. - Google Patents

Description

B. F. CASE.

FIREARM.

APPLIUATION FILED MAY 14, 1912.

Patented Oct. 8, 1912.

WITNESSES 27 BENJAMIN FRANK CASE, OF MITCHELL, INDIANA.

FIREARM.

Specification of Letters Patent.

Patented Oct. 8, 1912.

Application filed May 14, 1912. Serial No. 697,299.

To all whom it may concern: 1

Be it known that I, BENJAMIN FRANKLIN Own, a citizen of the United States, and a resident of Mitchell, in the county of Lawrence and State of Indiana, have invented a new and Improved Firearm, of which the following is a full, clear, and exact description.

My invention has for its object to provide one having an extractor movable longitudinally of the barrel, and rotatable there with on a stud mounted on the breech piece, so that when the barrel is rotated the extractor will engage a member on the stud, which will hold the extractor against movement when the barrel is moved longitudinally away from the breech piece, the extractor in this way removing from the barrel the shell.

Additional objects of the invention will appear in the following complete specification, in which the preferred form of the invention is disclosed.

In the drawings similar characters of ref erence indicate corresponding parts in all the views, in which- Figure 1 isa side elevation partially in section of a firearm embodying the invention, showing the firearm ready to be fired; Fig. 2 is a sectional plan view of the firearm, showing the extractor ejecting the shell; Fig. 3 is a sectional view on the line 3--3 of Fig. 1; Fig. 4 is a sectional view on the line 4-4 of Fig. 2; and Fig. 5 is a sectional View on the line 55 of Fig. 2.

By referring to the drawings it will be seen that the firearm has a breech piece 5, in which is secured a stud 6, the barrel 7 having a plate 8 with an opening 9, through which the stud 6 is disposed, this plate 8 also having grooves 10','which are connected with the opening 9, the key members 11, which are secured to the stud 6 being adapted to move in the said grooves 10 when the barrel is rotated on the stud to the position shown in Figs. 2 and 4 of the drawings, these key members 11 being normally engaged by the cam members 12, which are secured to the front face of the plate 8, as shown in Fig. 1 of the drawings. Secured to the barrel 7, and spaced from the plate 8, there is a flange 13, having an opening in which the stud is dispmed, the barrel 7 being supported by this flange 13. and the plate 8 when it is rotated on the stud 6 to the position shown in Fig. 2. In the barrel Tthere is a groove 11, in which is disposed the ejector 15. the flange 16 of the extractor being normally disposed in a recess 17 in the barrel. This extractor 15 has an offset portion 18, with a recess 19, the forward terminal. 20 of the extractor 15 be ing disposed. in a guideway in the flange 13. The recess 19 is provided to receive the lug 21, on the stud 6, when the barrel with the extractor is rotated on the said stud so that when the lug 21 is disposed in the recess 19 the extractor 15 will be held against movement longitudinally of the stud, and when the barrel is moved forward, as shown in Fig. 2 of the drawings. the flange 16 of the extractor, which engages the rim 22 of the cartridge 23, will serve to extract the cartridge from the barrel.

In the lower portion of the plate 8 there is a recess 24, in which the bolt 25 on the finger loop 26 is normally disposed. this bolt 25, when it is disposed in the said recess 24, serving to hold the barrel in firing position. When the firearm has been fired, this bolt 25 is pulled rearwardly, which withdraws the bolt 25 from the recess 2t in the plate 8, when the barrel 7 is rotated to the right, as shown in Fig. 2 of the drawings. When the barrel has been so-rotatcd. the cam members 12 are moved away from the key members 11. and the grooves 10 are moved in position to receive the key members 11. so that when the barrel 7 is moved forward, the key members 11 will travel in the grooves 10, to support the rear of the barrel against rotary movement when the cartridge 23 is extracted from the barrel by the flange" 16 on the extractor 15, this extractor 15 being prevented from moving forward with the barrel 7 by means of the lug 21, which is disposed in the recess 19 in the extractor 15, ash-as been described.

A collar 29 is secured to the stud 1', against which the cam members 12 st iketo limit the forward movement of the barrel relatively to the stud G and the brow-b piece 5. The spring 27. which is held against the flange 13 by the nut sci-"cs llll to more the tlange 13 and with it the barrel T rearn'ardly, which will free the key members 11 from the grooves 10, and when the said key members have been freed from the grooves it. the rotation of the barrel 7 on the studs (5 will cause the cams to ride on the inner ends oi the key members ll, to pre s the cams l2, and with the cams the plate rearwartlly. and against the breegh piece.

llaving thus described my invention, I. claim as new and desire to secure by Letters Patent:

l. A firearm l'laving a breech piece, a stud secured to the breech piece, a barrel having two members FPLHZH'] apart with ori- [ices in which the stud is disposed, there being EXll'zictfil grooves in the members, an extractor disposed in the grooves, and having a set oti' portion with a recess, and a member on the stud f r engaging the ewe tractor at the recess. when the barrel is rotated on the ind to?" holding the extractor against movement vrith the barrel when the barrel is moved longitudinally relatively to the stud.

2. A firearm having a breech piece, a stud secured to the breech piece, a barrel having a plate with an opening through which the stud is disposed, there being a groove in the plate extending to the opening, resilient means for holding the barrel yielding-1y toward the breech piece, a can in the front :l'ace ot' the plate at one side of the groove, a key on the stud or moving in the groove when the barrel is moved away from the bremrh piece, the cam engaging the key for holding the barrel toward the breech piece when the barrel is moved rearwardiy to a position with the plate free from the key, and the barrel is rotated.

3. A firearm having a breech piece, a stud secured to the breech piece, a barrel mounted to rotate on the stud, and to move longitudinally relatively to the breech piece, an extractor for the barrel mounted to rotate therewith and to move longitudinally relatively to the barrel, and lug on the stud with which the extractor is adapted to engage, n hen the barrel is rotated for bolding the extractor against movement when the barrel moved away from the breech piece. resilient means for holding the barrel yieldingly toward the breech piece, and means for locking the barrel to the breech piece in osition for firing.

4. A rearm having a breech piece, a stud secured to the breech piece, a barrel having a plate at its breech with an opening through which the stud is disposed, and a recess, a member spaced from the plate secured to the barrel and having an opening through which the stud is disposed, there being ax;- tfxtractor groove in the barrel, an

extractor in the groove, 21 member on the stud with. which the extractor engages when the barrel with the extractor is rotated on the stud 'for holding the extractor against longitudinal movement with the barrel, and a member on the breech piece. having a bolt normally disposed in the recess.

- 5. A firearm having a breech piece, a stud secured to the breech piece, a barrel having a plate with an opening through which the stud is disposed, there beino' a groove in the plate extending to the opening, a cam on the front face of the plate at one side of the groove, and a key on the stud for moving 1n the groove when the barrel is moved away from the breech piece. the cam engaging the key for holding the barrel toward the breech piece when the barrel is moved rearwardly to a position with the plate free from the key and the barrel is rotated.

6. A firearm having a breech. piece, a stud secured to the breech piece, a barrel having a plate with an opening through which the stud is disposed, there being a groove in the plate extending to the opening, an extractor for the barrel mounted to rotate therewith, and to move longitudinally relatively to the barrel, means on the stud with which the extractor is adapted to engage when the barrel is rotated for holding the extractor against movement when the barrel is moved away from the breech piece, a cam on the front face of the plate at one side of the groove, and a key on the stud for movin in the groove when the barrel is rotate and is moved away from the breech piece, the cam engaging the key for holding the barrel toward the breecn piece when the barrel is moved rearvvardl to a position with the plate free from t e key and the barrel rotated to firing position.

barrel mounted to move laterally and longitudinally relatively to the breech piece, an extractor for the barrel mounted to move laterally therewith and to move longitudi- Which the extractor is adapted to enga 0 when the barrel is moved laterally for bolding the extractoragainst movement when the barrel is moved away from the breech piece, means for holding the lug in posimeans for holding the barrel towst'rd the breech piece, and means for locking the barrel to the breech piece in position for firing.

8. In a firearm having a breech piece, a barrel mounted to move laterally and longitudinally relatively to the breech piece, a member secured to the barrel and having a recess, there being an extractor groove in the barrel, an extractor in the groove, a member with which the extractor is adapted to one? when the barrel with the extractor 105, 7. In a firearm having a breech piece, a

nally relatively to the barrel, a lug with tion relatively to the breech piece, resilient is moved laterally relatively to the breech In testimony whereof I have signed my piece for holding the extractor against 1on name to this specification in the presence of ltudinal nhovement with the barrel, means two subscribing witnesses.

1 01' holding the member in position rela- BENJAMIN FRANK CASE. 5 tively to the breech piece, and a member on \Vitnesses:

the breech piece havlng a bolt normally dis- HARRY CHAPPLE,

posed in the recess. CALVIN Fame.

Copies of this patent may be obtained for five eents each, by addressing the "Commissioner of Patents,

Washington, D. G." V

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