US1066737A

US1066737A - Extractor for firearms.

Info

Publication number: US1066737A
Application number: US73865112A
Authority: US
Inventors: Charles William Laird; Paul Marie Menteyne; Pierre Albin Degaille
Original assignee: Individual
Current assignee: Individual
Priority date: 1912-12-26
Filing date: 1912-12-26
Publication date: 1913-07-08
Anticipated expiration: 1930-07-08

Description

G. W. LAIRD, P. M. MENTEYNE & P. A. DEGAILLE. EXTRAGTOR FOR FIREARMS.

APPLICATION FILED DEC. 26, 1912.

1,066,737. Patented July 8,1913.

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CHARLES WILLIAM LAIRD, OF LONDON, ENGLAND, AND PAUL llIARIE MENTEYNE AND PIERRE ALBIN DEGAILLE, OF PARIS, FRANCE.

EXTRACTOR FOR FIREARMS.

Application filed December 26, 1912.

To all whom it may concern:

Be it known that we, CHARLES WILLIAM LAIRD, of 58 Pall Mall, London, S. W'., England, engineer, PAUL lVIARIE MENTEYNE, of 114 Rue Legendre, Paris, France, engineer, and PIERRE ALBIN DEGAILLE, of 85 Rue de Mnilmontant, Paris, France, engineer,have invented Improvements in Extractors for Firearms, of which the following is a full, clear, and exact description.

It frequently happens in automatic and other firearms, after a discharge, that the claw of the flexible extractor rises and releases the rim of the cartridge case, in which case a great effort is necessary to free this case from the chamber of the arm. Owing to this release of the extractor, the case remains in the chamber, so that the arm is, for the time being, out of working order.

The present invention has for its object an improvement in or connected with the said flexible extractors, with a view to remedy the above mentioned inconveniences.

The improvement consists in the application to these extractors of an arrangement of spring bolt consisting of a rod having a part cut away and a shoulder which permits the extractor to push back the bolt when the extractor is seizing the cartridge, after which the rod is held by its spring against the extractor and energetically maintains the claw in contact with the rim of the case when the breech is opened, so as to render impossible any release and consequently any sticking of the case in the chamber of the arm.

This invention will be described by reference to the accompanying drawing, in which:

Figure 1 is a horizontal section and represents the extractor at the moment when it withdraws a case from the chamber of the arm, its holding or supporting apparatus being then in action. Fig. 2 is a horizontal section showing the extractor and its supporting apparatus at the moment of the closing of the breech.

The head a of the extractor a has a shoulder or abutment a which is movable with the breech block (Z of the arm and acts in Specification of Letters Patent.

Patented July 8, 1913.

Serial No. 738,651.

conjunction with a kind of bolt V constantly pressed toward the rear by a coiled spring 0. The bolt V comprises a head (Z and a rod cl which has a cut-away part (Z and a shoulder (Z The rod (Z retains the head of the extractor when the breech is closed, as seen in Fig. 1, while the extractor enters into the cut-away part (Z during the last instants of the closing of the breech, as seen in Fig. 2. The bolt V and its spring 0 are located in a kind of socket e which is part of the breech casing of the arm. A screw stopper 7 closes this socket in front and acts as an abutment for the spring 0 which presses against the head d of the bolt. A small screw, for example, entering into a convenient groove, prevents the bolt V turning while allowing it to move longitudinally. The rod cl of the bolt may equally well be of square section to prevent the bolt turning.

In closing the breech b at the moment when the claw a of the extractor is about to pass over the rim 9 of the cartridge to seize this rim, the shoulder a of the extractor comes into contact with the shoulder (Z of the bolt V so that this latter is pressed forward while its coiled spring 0 is being compressed. The claw a of the extractor having passed the rim 9 of the cartridge, moves in front of this rim owing to its elasticity. At this moment, the shoulder a of the extractor is disengaged from the shoulder (Z of the bolt V so that this latter thus liberated may move backward under the action of its spring 0 whence it results that the rod cl then wedges or presses against the extractor laterally as indicated in Fig. 1. The head of the extractor being wedged or supported, as just stated, when opening the breech of the arm after the discharge, the claw of the extractor will always pull the empty case backward however much this latter may stick in the chamber of the arm, as the extractor can not escape from the rim during this sticking. After the case has been freed, the extractor acts without the help of the bolt, the extraction of the case offering no longer any ditliculty.

It will be understood that the form, details, accessories, material and dimensions of this apparatus may be Varied without cleparting from the principle of the invention.

Claim:

An extractor for fire arms, comprising a spring bolt having a rod with a cut away part and a shoulder, this latter permitting the extractor to press back the bolt during the time when the extractor is seizing the rim of the cartridge, the rod which is held by the spring against the extractor supporting the latter during the unsticking of the cartridge case from the chamber of the fire arm by said extractor.

The foregoing specification of our improvements in extractors for fire arms,

signed by the said CHARLES WILLIAM LAIRD, this ninth day of December 1912.

CHARLES WILLIAM LAIRD. In the presence of EUSTACE BURKE, A. E. TUewooD. Signed by the said PAUL MARIE MEN- TEYNE and PIERRE ALBIN DEGAILLE, this 12th day of December 1912.

PAUL MARIE MENTEYNE. PIERRE 'ALBIN DEGAILLE. In the presence of LUcmN MEMMENGER, RENE THIRIOT.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). c.