US753700A

US753700A - Automatic firearm.

Info

Publication number: US753700A
Application number: US9072102A
Authority: US
Inventors: Clifford Robert Stephen John Halle
Original assignee: HALLE AUTOMATIC FIRE ARMS SYNDICATE Ltd
Current assignee: HALLE AUTOMATIC FIRE ARMS SYNDICATE Ltd
Priority date: 1902-01-21
Filing date: 1902-01-21
Publication date: 1904-03-01
Anticipated expiration: 1921-03-01

Description

PATENTED MAR. 1,1904.

0. R. s. J. HALLE. AUTOMATIC FIREARM.

APPLICATION FILED JAN..'21. 1902.

" v qsHEETs-snBET 1.

N0 MODEL.

PATENTED MAR. 1, 1904.

(LR. s. J. HALLE. ,v AUTOMATIC FIREARM. APPLICATION FILED JAILBI, 1902.

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N0 MODEL.

' UNITED STATES Patented March 1, 1904.

PATENT OFFICE.

ASSIGNOR TO THE HALLE AUTOMATIC FIRE ARMS SYNDICATE,

LIMITED, OF LONDON, ENGLAND, A CORPORATION.

AUTOMATIC FIREARM.

SPECIFICATION formingpart of Letters Patent No. 753,700, dated March 1, 1904.

Application filed January 21, 1902. Serial No. 90,721. (No model.)

To all whom it may concern:

Be it known that I, CLIFFORD ROBERT STEPHEN J OHN HALLlt, a subject of the King of.

Great Britain, residing-at 19 Campden House road, Kensington, London, England, have'invented certain new and useful Improvements in Automatic Firearms, of which the'following is a specification.

This invention relates to certain new anduseful improvements in automatic firearms; and the object thereof is to utilize the recoil of a firearm for the purpose of recock'ing the gun, extracting and drawing out the empty shell, and placing anew cartridge in position, thereby causing the gun to be in readiness for firing. To this end the invention consists of the novel combination 'and arrangement of parts hereinafter more fully specifically described, illustrated in the accompanying drawings, and particularly pointed out in the claims hereunto appended.

In the accompanying drawings, forming a part of this specification, the same reference characters denote corresponding .parts throughout the several views and in which Figure 1 shows an elevation, partly in section, of a firearm with the regulating-lever in its forward position. Fig. 2 is a view similar to Fig. 1 with the lever thrown in the opposite direction, Figs. 3 and 4 are longitudinal horizontal sections corresponding to Figs. 1 and 2, respectively. Fig. 5 is a side elevation of a barrel and barrel extension. Fig. 6 is a side elevation of a magazine, the stock, and the firing mechanism. I

Referring to the drawings by reference characters, A denotesthe barrel of the firearm,

within which is adapted to be placed a' cartridge A in position for firing, and B denotes the barrel-block, into which the barrel A is secured. The reference character C indicates the barrel extension, which consists of two sides and a lid. The barrel extension C is suitably cut away on one side of the breechbolt F sufiicient to allow a cartridge to be thrown out, and the barrel'extension is further cut away to permit of the passage of the pin E, carried by the breech-bolt F. The latter otherwise passes between. the-two sides of the barrel extension C and slides therein .on blocks or ribs in the rear thereof. When the breech-bolt is in its forward position, it slides on the top of the magazine of the firearm. The barrel extension C is further provided with two openings H, formed in the sides" thereof, andthrough which extend the supports I I for the breech-bolt. (See Figs. 3 and 4:.) The barrel extension C is also provided atone side with a depending projection, to which is pivoted, as at L, the regulating-lever K. At the forward'end'of the barrel extension C ahook M is provided, and said hook is connected to a plunger N serving'to compress the recoil-spring P, carried by the frame of the firearm. The barrel extension is placed in 5 over themagazine G, the trigger U, and also 7 the hammer mechanism. e

' The reference character R denotes the trigger-guard.

The depending projection of the barrel ex? tension when in position lies alongside the magazine-wall. (See Figl 9.)

The frame of the firearm is provided with an actuating-block Y for the lever K.

' Within the frame of the firearmis arranged the hammer Z, actuated by a spring (a, which is suitably connected to a block 6. The hammer Z is cocked by meansof a block 0 in the barrel extension C and is pivoted on two lugs which rise from the bottom of the frame sufficient-ly close togetherto allow the sides of 5 the barrel extension to pass over.

The trigger U has a short lever d pivoted to it. The trigger'and lever are actuated by I the double spring a The lever of the trigger engages with the end of, a sliding bar f, the 9 upturned end of-which forms the sear for the hammer. The bar f is pressed backward by a small spiral spring 9, which presses against a block into which the pin that the spring is on passes. bar f is pushed forward untilthehammer is When the trigger is pulled, the

released, and then the lever d trips from the bar f, so that the firearm cannot be fired again until the finger is taken oif the trigger, when the lever trips back again behind the sliding of the firearm, and when held before the thick walls of the barrel extension G hold the bolt so firmly-that the barrel extension must break before the bolt can be moved back therein. When the firearm is fired, the recoil pushes the bolt F back, the bolt presses against the breech-bolt supports I, and these force the barrel extension back, dragging the barrel therewith. The breech-bolt supports I swing open, and when the barrel extension and barrel have recoiled.therequired distance-about .200 or one-fourth inchthe breech-bolt supports I are sufficiently open to allow the bolt F to pass. barrel extension the sides h of the latter close up the breech-bolt supports I when they reach them, which they do directly the bolt is home again. The operation of the firearm is so timed that directly when the breech-bolt supportsI open the bottom end of the regulating-lever K comes into contact with the actuating-block Y, the flat end of the lever having glided along the lower portion of the block until it is over the recess. The regulating-lever now turns. Ifthe movement of the bolt F is faster than necessary, it is checked by the front of the lever touching the front of the slot. If it does not travel quickly enough, the rear end of the slot or cup comes in contact with the rear of the lever and accelerates. its motion. "By strengthening the recoil-spring the bolt can be arrested at any part of its-travel. When the barrel extension is drawn back again by the recoil-spring, the lever closes the bolt in exactly the same manner as it was opened. The lever K must be free to operate almost immediately when the breech-bolt supports I are open, air there is a chance of a jam in' the case of a loose cartridge, for in"that case the momentum of the bolt tends to force the lever round. The breech-bolt supports close at the same point of the travel of the barrel at which they open, and so it-is essential that the bolt should also do so.

Having thus fully described my invention,

what I claim as new, and desire to secure by Letters-Patent, is-

'1. A firearm comprising a frame. provided with a block having a recess, with one wall of said recess of greater height than the other, a lever having an angular projection adapted to engage and have its movement effected by the walls of said recess, a movable barrel extension having a depending projection pivoted to the lower end of said lever, a breech-bolt arranged in the extension and suitably con-' On the return of the barrel and nected to the upper end of said lever, said lever adapted to effect the movement of said bolt, and means for returning the barrel extension to its normal position.

2. A firearm comprising a frame provided with a block having a recess, with one wall of said recess of greater height than the other, a lever having an angular projection adapted to engage and have its movement effected by the walls of said recess, a movable barrel extension having a depending projection pivoted to the lower end of said lever, a breech-bolt arranged inthe extension and suitably connected to the upper end of said lever, said lever adapted to effect the movement of said bolt, means for returning the barrel extension to its normal position, and means for retaining said bolt in its normal position.

3. A firearm comprising a movable barrel, a barrel extension connected thereto and movable therewith, means for returning said barrel and extension to their normal positions, a

breech-bolt adapted to be moved bythe recoil of the barrel, a lever pivoted at its lower end to the barrel extension and at its upper, end connected with the bolt for efiecting the backward or recoil movement of the bolt, means engaging the lower end of said lever for -suitably actuating it, and a pair of locking-blocks pivoted to the frame of the firearm and adapted to retain the bolt in its normal position.

4. A firearm comprising a movable barrel extension, means for returning said extension to its normal position and adapted to be moved by the recoil thereof, means arranged at one side of the extension, connected thereto and to said bolt and adapted to efiect the backward or recoil movement of the bolt, and a pair of locking-blocks pivoted to the frame of.

the firearm for retaining the bolt in its nor mal position.

5. A firearm comprising a frame provided with a block having a recess, with one wall of said recess of greater height than the other, a movable barrel extension having adepending projection, a lever having an angular projection adapted to engage and have its movement effected by the walls of said recess, said lever pivoted at its lower end to the said depending projection of the barrel extension, a breechbolt arranged in the extension and suitably connected to the upper end of said lever, said lever adapted to effect the movement of said bolt, and a spring for returning the barrel extension to its normal position.

6. A firearm comprising a frame provided with a block having a recess, with one wall of said recess of greater height than the other, a movable barrel extension having a depending tion adapted to engage and have its movement effected by the walls of said recess, said lever pivoted at its lower end to the said depending projection of the barrel extension, a breechbolt arranged in the extension and suitably connected to the upper end of said lever, said 8. A iirearin eomprising a movabl barrel lever adapted to effect the movement of said i extension provided with a dep nding 'n'oieebolt, a spring for returning the barrel exiension to its normal position, and a pair of leeklng-bloeks pivoted to the frame of the iirearm and adapted to lock the bolt in its normal position.

7. A firearm comprising a movable barrel extension, a breech-bolt arranged in the extension and adapted to be moved by the recoil thereof, a lever provided with an angular pro- I I i jection and pivoted to the barrel extension and having its upper end provided with a slot, a pin carried by the boltand extonding'through 1 the slot of the lever for connecting the bolt to the lever, said lever adapted to effect the movement of said bolt, means carried in. the frame of the firearm and adapted to be one id by the angular projection of the lever for aetuating the latter, and a pair or locking-l docks pivoted to the frame of the firearm and adapted to lock the bolt in its normal position.

tiou, a momhle le\ er hav ng an angular projection and pivoted near it\- lower end Li the lower end of said depending projection. means carried by the, frame of the; iirearni and a a ted to be engaged by theangular projertion of the lever for etl'ectingtlie movement thereof, a bolt mounted in said extension and connected with said levee said lever adapted to etl'eet the backward or reeoil movementot' said bolt, and a pairof lm'king-bloeks pivoted to the frame of the iii-earn] and adapted to retain Raid bolt in its normal position v ln testimoirv whereof I have hereunto set my hand in presence of two subscribing witnesses.

\v'itn eses:

PERCY E. MA'TTOCKS, WM. 0. BROWN.