US640627A

US640627A - Magazine-firearm.

Info

Publication number: US640627A
Application number: US72738099A
Authority: US
Inventors: Bethel Burton
Original assignee: Individual
Current assignee: Individual
Priority date: 1899-08-16
Filing date: 1899-08-16
Publication date: 1900-01-02
Anticipated expiration: 1917-01-02

Description

No. 640,627. Pten fed Ian. 2,1900. B. BURTON.

MAGAZINE FIREARM.

(Applicatiofi filed Aug. 16, 1899.)

(No Nlodl.)

A nates the handleor Units Snares P TE T union.

BETHEL BURTON, NEW YORK, N. Y.

MAGAZINE=FIREARM.

SPECIFICATION forming part of Letters Patent No. 640,627, dated January 2, 1900.

Application filed August 16. 1899. Elerial No. 727,380. (No model-l To all whom it may concern.-

Be it known that I, BETHEL BURTON, acitizen of the United States,residing in New York, (Brooklyn,) in the county of Kings and State of New York, have invented certain new and useful Improvements in Magazine-Firearms, of which the following is a specification.

This invention relates to magazineiirearms, and has for its object a construction in which the bolt mechanism is withdrawn and the empty shell is expelled by the reactive force of the explosion, the bolt being again immediatelyautomatically advanced to force a new cartridge into the ter set forth.

My invention als as For a. further object the provision of a magazine embodying a plurality of chambers each of which is adapted to contain a number of cartridges and which is separately chargeable when another of said seriesof chambers is in position to discharge the cartridges therefrom consecutively and deliver the same to a carrier, whereby they are positioned adjacent to the end of the barrel and subsequently forced into'proper position therein by bolt mechanism of suitable construction.

A further object of my invention is the pro-' vision of improved means for releasing the firing-pin, as illustrated in the drawings accompanying and forming part of this specification, in which- Figure lis a side view of my improved firebarrel, as will be hereinaf-' arm. Fig. 2 is a top viewof the same. Fig. 3 1s a central longitudinal section. Fig. 4 is a similar view of some of the parts in another position. Fig. 5 is a perspective view of the bolt by which the cartridges are forced into the barrel. Fig. 6 is a detail view of the extractor carried by said bolt. Fig. 7 is an under side perspective view of the bolt, and Fig: 8 is a detail view of the actuator for operating the carrier whereby the cartridges aretransferred from the magazine into position to be forced into the barrel.

Similar characters of reference designate like parts in all the figures of the drawings. In the accompanying drawings, 10.desig stock of the firearm provided with a frame having a head 11 for receiving the barrel l2,which is in screw-threaded engagement therewith and which supports on.trunnions 13 and desired chamber thereof into will hereinafter appear and as spring 25, the otherend of which 13 a magazine, (designated in a general way by M,) comprising a series of chambers '14 and 14, said magazine being revoluble on the trunnions to bring the a position from which the cartridges may be delivered to the b Located in each of the chambers Hand 14: is a spring 15, resting at one end against the end plate 16 of the magazine and with its other end against a follower 17, which when the cartridges are inserted into a chamber will afford a yielding abutment, whereby when the magazine is rotated the cartridges will be discharged therefrom and will be delivered to a carrier 18, consisting substantially of a U shaped receptacle guided between

walls

19 and 20 of the frame and which is vertically re-- ciprocative to transfer a cartridge from one of the chambersin-the present instance, chamber14into position to be forced into the barrel 12, as shown in Fig. 4.

InFig. 3 is illustrated the manner in which one of the chambers of said magazine is being supplied with cartridges, an opening 21 being provided for that purpose in each of said chambers 14 and 14., while the wall 19 is cut away at 10 near its lower extremity to permit the passage of a cartridge into the chamber.

YVhen a cartridge has been transferred by the carrierlS to a position adjacent to the rear end of the barrel and nearly in Mine ment with the bore thereof, a bolt 22 will force said cartridge into the bore of said barrel, said bolt being'shown in the nature of a reciprocatory slide guided within a frame 23, which is provided at its rear end witha plug 24 in screw-threaded engagement therewith, said plug serving as an abutment for the rests against the end of the bolt 22, and whereby said bolt is normally advanced toward the bar-rel.

Properly disposed within the bolt 22 is a firing-pin 26, having its end 26 slightly reduced and providednear its opposite end with a collar 27, secured to or forming a part ofone face of said pin, said collar being pressed against by a spring 28, and the other face thereof being engaged by a sear 29, whereby said firing-pin willberetainedin full-cock position upon the return of the bolt 22 to force a cartridgeinto the barrel.

Thejnovei nent of the firing-pin is at .first full limit and will then aid in ejecting the empty shell, as will be hereinafter described.

' Inasmuch as the bolt 22 must have sufficient movement to permit a complete cartridge to be carried in front thereof, while onlya comparatively slight movement of the firing-pin is necessary forits proper operation to explode a cartridge, the bolt 22 is preferably provided with a slot- 22, into which the sear 29 may project to engage the collar 27 during the final-closing movement of said bolt. The scar 29 is vertically guided in the frame 23, and is secured atits lower end to a lever BO, which is pivoted at ill to the frame, and the arm 30' of which is engaged by a spring 32, normally tending to retain the sear 29 in its raised or engaging position.

The arm "30 of the lever is provided near its free end with a hook-shaped projection 30", engaging a series of teeth on a disk 33, which is loosely iournaled upon a spindle 3-}, each of said teeth being effective on the pr0- jeetion 30" for raising the arm 30, and there by Withdrawing said sear 29 from the collar 2'7. Also snpported on the spindle 3-1; is the trigger 1, one face of which is engaged by a spring E 35, normally tending to throw said trigger forward, such movein out being limited by the face 36 striking a slop-face formed in the guard 37.

The web of the trigger 'jl carries a springactuated pawl 38, which is pivoted at L3!) and one end of which is adapted to engage the teeth of the disk 53 to rotate the same for the purpose of withdrawing the scar 2!), as will be readily understod.

Various means may be employed for properly operating the carrier, those shown in the drawings being operated by the bolt to lower the carrier 18 during the closing movement of said bolt, such means consisting of a lever 40, which is pivoted at ii and one end of which may be slotted to receive a pin .12, projecting from an car 43 of the carrier '18, while the arm ll) extends upwardly and into position to be engaged by a shoulder ll, formed in the bolt 22 to rock said lever, and thereby lower the carrier against the action of the spring 45, which normally tends to rock said lever in the reverse direction until the arm 40 strikes an abutment 40, provided on the frame 23.

In Fig. the carrier 18 is shown in its lowermost or cart-r-idgo-receiving position, the" shoulder stl of the bolt being in engagement with the lever 10' anal the .spring t5 being under increased tension. ll, now, the bolt 22 is pulled back by hand, (an cxtra-nconslydisposed linob l7 being provided for that pun pose.) and the iipring should .not properly erat in raise-the carrier with a fresh cartridge, the end of the lever s0"willbeengaged bya shoulders, formed in the bolt 22, during the latter part of its retrograde or opening movement, thereby positively rocking said lever,and consequently operating said carrier.

Pivoted near the under side of the frame, as at ll), is a cover 50,whoreby the receivingopening of the

lowermost chamber

14 or 14!, asthe case may be, and simultaneously therewith the passage in the frame for the move-' ment of the carrier may be closed. After such chamber has been filled said cover may be held in either its open position (see Fig. 3) or in its closed position (shown in Fig. 4) by one arm of the above-mentionedspring 45. The cover 50 is provided with a thumb-piece 60, whereby it may be opened either to gain access to the lowermost chamber of the magazinc or to facilitate the cleaning of the firearm. 7

Means are pro vidod whereby the cartridgeshell may be automatically extracted from the barrel, such means consisting substantially of a yielding extractor 51, having at its end a lip 51, which is beveled atits front edge to automatically seat itself over the rim of the cartridge when the bolt is forcing the same into place in the barrel. I

'i"ho extractor 5i. preferably formed with an enlarged portion 5l",whercby it is prevented from longitudinal displacement relatively to the bolt 23, which is provided with a corresponding recess 5; for the reception of said extractor.

Upon the rearward movement of the bolt 22, caused by the explosion of the cartridge, the shell will ordinarily be aided, if necessary, by the extractor 51 until the front end of said shell in position to clear the rear end of the barrel, when the tiring-pin 26 will. be slightly projected outward and against the head of the shell until the shoulder 27 of said pin engages the stop-face 22 of the bolt. By this. slight liual forward movement of the firiug pin the shell, the head-flange of which engages the lip 51 of the extractor 51,Will be caused to turn on said lip as a fulcrum and will be ejected through an aperture provided for the purpose in the upper part of. the frame in the manner shown in Fig. I

It will be observed that the bolt- 22 is provided near its fo ward end with a lip (31, th front face of which is substantially in vertical alinement with the point of the firing-pin when the latter is in its full forward position, and that, furthern'ioro, saidlip is in alinement with the .rear edge of the carrier 18, so that when said carrier is raised with a cartridge in place thereon no obstruction is presented to the free movement thereof.

'l,lie lip (31 wilhgtfter the cart-ridge has been forced into place in the barrel, seat itself under the head of the cartridge, (see Fig. 3,) and will during the return or opening movement of the bolt 22 serve as a means whereby the 'shellwill be prevented from dropping into the carrier-passage, as will be readily understood.

, The operation of m invention is as follows:

he chambers of the revoluble magazine are first filled with cartridges in the manner indicated byFig. 3, and the bolt or breechblock 22 is forced rearward against the action of the spring 25 by manipulating the handle or knob 47. By this action the carrier is ele- =vatedand brings a cartridge into line with p the breech opening of the barrel, and the bolt being released it is impelled forward by its spring and forces the cartridge into the barrel. On theforward movement of the bolt the shoulder 27 of the firing-pin comes into contact with the sear 29, thereby setting said pin. Thearm is now in condition for automatic work, and when the trigger is pulled the firing-pin is released, strikes the cap, and explodes the cartridge. In'the above connection it is particularly to be noted that each cartridge is to contain a charge of explosive,

which is nicely proportioned to accomplish,

' the Work intended. On the explosion of the cartridge the gas generated thereby expands the shell and causes it momentarily to be frictionally Held by the wall of the chamber of the barrel, aided by the pressure of the spring 25, and about the time the bullet reaches the 'muzzle the pressure on saidshell is sufticient to loosen and expel the same by its reactive 'fdrce, the bolt 'orbrceclrblock being then thrown rearward against the pressure of the spring 25, which acts as-a bufier to cushion and gradually check the recoil of said block. Upon this rearward action of t e bolt, due to the reactive force of the exploding-charge, as stated, the carrier 18 is again operated to bring a new cartridge into line with the bore of the barrel, whereupon the bolt is again advanced by its spring to force said cartridge into the barrel, the firing-pin being then again set as above stated.

In a firearm of this description it is only I necessary to withdraw the breech-block or flS bolt once by hand, and when the block has returned'to its normal position, closing the breech of the barrel, the firearm being automatic in action, it is only necessary to pull the trigger until the supply of cartridges in one of the chambers of the magazine is exhausted, when the magazine'is moved to bring its other chamber into position to supply cartridges seriatim to the carrier. The spring 25 is to be-so proportioned that it will correspond with the reactive force of the gas generated by the explosion of the powder or 01 her projectile-propelling agent.

any changes may be made in the construcr tion of the devices appertaining to my invention without departure therefrom, and the invention is not limited to the precise details of the bolt or breech-block mechanism nor to the means forreleasing the firing-pin illustrated and described. Having described my invention, I claim- 1. A firearm comprising a barrel; a bolt or breech-block automatically operated in one direction by the recoil of the cartridge-shell, due to the reactive force of the explosion of the charge; means for automatically advancing said bolt to cause it to close the breech after a cartridge has been inserted therein; a firing device; a scar for setting said device; and an independent rotative cam actuated by the trigger for withdrawing the sear.

2. A firearm comprising a barrel; a magazine; a carrier for conveying cartridges seriat'im into position to be forced into said barrel a bolt or breech-block operated in one direction by the reactive force oi?v the explosion; a spring for automatically causing said bolt to close the breech aftera cartridge has been inserted therein; a firing-pin; a scar for setting said pin; and an independent rotative device actuated by the trigger for withdrawing the sear.

3. In a firearm, the combination, with a magazine, of a carrier for conveying cartridges from said magazine to the barrel; a breech-block normally operating to close the breech; a firing-pin carried by said breechblock; means cooperating with the breechblock for automatically operating the cartridge-carrier on the recoil of said breechblock; a scar for setting the firing-pin a lever connected to the sear; and an independent rotative cam device actuated. by the trigger for withdrawing the sear.

4. In a firearm, the combination, with the barrel, of a bolt or breech-block; yielding means for automatically closing said bolt against the breech; a firing pin having a shoulder; a multichambered magazine; means operated by the bolt for delivering cartridges from said magazine to the barrel; a scar movable in an opening of the frame and adapted to engage the shoulder on the firing-pin; a toothed wheel controlling the movement of the scar; and a trigger for actuating said wheel.

5. In a firearm, the combination, with a movable mult-ichambered magazine, of a bolt normally held against the barrel by a'spring to close the breech; a spring-actuated firingpin carried by the bolt; a scar for setting said pin; a toothed device controlling the movement of said scar and serving to release the same; a trigger; and a pawl carried thereby for actuating said toothed device.

6. A firearm embodyinga magazine having a plurality of separately-chargeable chambers for con tainingcartridges; a cover for locking said magazine and closing the opening in the frame; and a carrier movable in said opening in the frame and adapted to receive acartridge from one of said chambers and to convey said cartridge into position to be fired.

7. In a-firearm, the combination, with the barrel, of a reciprocatory breech-blocker bolt having a lip on the lower partof its front end; an extractor carried by the bolt; a firing-pin a magazine forcontaining cartridges; means for transferring a cartridge from the maga- 4 en ear zine to the barrel; means for actuating the bolt; a sear; and a rotative toothed device for actuating said sear.

8. In a firearm, the combination, with the barrel, of a movable magazine having separately-chargeable chambers each having a cartridge-receiving opening; a carrier adapt- 7 ed to receive a cartridge from one of said chambers; means for actuating said carrier tobring a cartridge into. line with the barrel means for/forcing the cartridge into the barrel and for explodingthe same; and means for locking the magazine and simultaneously closing the cartridge-receiving openingin one of the chambers.

9. In a firearm, the combination, with the barrel and a magazine having a plurality of separately-chargeable chambers for contain ing cartridges, ot' a carrier; a device for ac ma ing said carrier; a belt for forcing a car-' tridge from the carrier into the barrel; a firing-pin carried by the bolt; a spring for actuating said pin; a sear adapted to engage a shoulder on the firing-pin; and an independent rotative cam actuated by the trigger for Withdrawing the scar and thereby releasing the pin.

10. In a firearm, the combination, with the barrel, of a magazine having a plurality of separately-chargeablo chambers for receiving cartridges; trunnions on which the magazine is revolubly supported; a carrier adapted to receive cartridges from either of said chambers; a bolt for forcing a cartridge from the carrier into the barrel; a pivoted lever positively actuated by thebolt in both directions said lever being connected to the carrier; and

means for locking the magazine in position and also closing the openings to the cham bers thereof.

11. In a firearm, the combination, with a barrel, of a movable magazine comprising a plurality of separately chargeable and dischargeable chambers; means for locking said magazine in position and closing openings therein; a carrier adapted to receive a cartridge from one of said chambers; and means for forcingsaid cartridge into the barrel and simultaneously depressing the carrier.

12. In a firearnn'the combination, with the barrel, of a magazine revolnbly mounted thereon and comprising a plurality of separately chargeable and dischargeable chambore; a carrier for receiving a cartridge from one-of said chambers and for positioning the same adjacent to one end of the barrel; abolt for forcing said cartridge from the carrier into the barrel, said bolt having shoulders on one of its sides; andapivotcd leverconnected at one end to the carrier and having an arm adapted to be engaged by the shoulders of the bolt.

, 13. In. a firearm, the combination, with the barrel, of a magazine movably mounted thereon,and means fox-simultaneously locking said magazine and closing the cartridgerccciving opening therein.

14. In a firearm, the combination, with the barrel, of a magazine revolubly mounted thereon and comprising a plurality of separately chargeable and dischargeable chambers having openings adjacent to the rear ends thereof forweceiving cartridges, and a cover adapted to lock the magazine in position and to close said openings.

1.5. In a firearm, the combination, with the barrel, of a magazine revolubly mounted thereon and comprising a plurality of separately chargeable and dischargeable chain bers having openings adjacent to the rear ends thereof for receiving cartridges; a cover adapted to lock the magazine in position and to close said openings; and means for retain ing said cover in its open or closed position.

16. In a firearm, the combination, with the barrel and a chamber containing cartridges, of a carrier adapted to receive a cartridge from saidchamber and to positionit adjacent to one end-of the barrel; a bolt for forcing said cartridge from the carrier into'the barrel; an extractor for extracting eu shell from the barrel during one movement of the bolt; 2. firing-pin coiiperatingwith the extractor-in the expulsion of an emptyshell; a scar for setting said pin; and a rotative cam for withdrawing said sear.

17. In a magazine-firearm, the combination, with the barrel, of a carrier for receiving a cartridge from the magazine'and positioning the same adjacent to one end of the barrel; a spring-actuated belt for forcingthe cartridge into the barrel; a firing-pin carried by the bolt; a spring-actuated lever for actuating said carrier during one movement of the bolt;

and an extractor carried by the bolt and 00- operating with the firing-pin in the expulsion of the cartridge-shell.

' 18. In a firearm, the combination with firing mechanism, of a scar movable in an opening of the frame and serving to retain the firing mechanism in set position; a pivoted lever connected to said sear; atrigger; and an independent rotative cam operated by said trigger for releasing said sear.

19. in a firearm, the combination, with firing mechanism embodying a firing-pin, a sear for retaining said pin in set position, of a trigger, and a pivoted lever connected to said sear and a device having a series of cam-faces for successively acting upon said lever and releasing the sear from the firing-pin.

20. In a firearm, the combination, with a bolt, of a firing-pin carried by said bolt; a,

scar for retaining said pin in set position; a pivoted lever con neoted to the sear and spring: actuated in one direction; a trigger; a disk having a series of teeth for successively acting upon said lever and releasing the sear;

and a pawl carried by the trigger forengag ing said teeth.

BETHEL BTTRTON.

Ni tnesses:

C. A. WEED, WM. llnbnooonrr.