US1096615A

US1096615A - Automatic shotgun.

Info

Publication number: US1096615A
Application number: US74931213A
Authority: US
Inventors: Henry B Febiger
Original assignee: COLLINS C DIBOLL; JOHN C FEBIGER JR
Current assignee: COLLINS C DIBOLL; JOHN C FEBIGER JR
Priority date: 1913-02-19
Filing date: 1913-02-19
Publication date: 1914-05-12
Anticipated expiration: 1931-05-12

Description

H. B. FEBIGER.

AUTOMATIC sHoTGUN. APPLICATION FILED FBB.19, 1913. Patented May 12 a slums-SHEET 1.

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AUTOMATIC sHoTGUN. APPLICATION FILED I'BBJQ. 1913.

Patented May 12, 19M.

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INVENTUR ATTORNEYS Patented May 12, 1914.'

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Patented May 12, 1914.

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Patented May 12, 1914.

H, B. FBBIGER.

AUTOMATIC SHOTGUN.

APPLICATION FILED 21:13.19, 191s.

ATTORNEYS UNITED 'STATES PAIE-NT OFFICE.

. HENRY B. FEBIGER, OF NEW ORLEANS, LOUISIANA, ASSIGNOB 0F ONE-EIGHTH T0 COLLINS C. DIBOLL- AND THREE-EIGHTHS T0 JOHN C. FEBIGER, JR., OF NEW ORLEANS, LOUISIANA.

AUTOMATIC SHOTGUN.

Specification 'o'fJLetters Patent.l

Patented May 12, 1914.

To allfwhom 'it may conce/m Be it known that I, HENRY B. Fumonn, a. citizen of the United States, residing in the city of New Orleans, parish of Orleans, State of Louisiana, have invented a new and useful Automat-ic Shotgun, o-f which the following is a specification.

My invention consists ofl an automatic shotgun in which the recoil of the barrel and breech-block sets the ring pin and causes the exploded shell to be ejected and a fresh cartridge to-be fed from the magazlne.

It further consists of an improved sear and trigger mechanism in such gun.

It further consists of improved mea-ns for holding the breech-block in its recoiled position until the barrel has returned to normal position, the exploded shell has been ejected, and a fresh cartridge has been fed.

It further consists of'improved means for connecting and disconnecting the breechblock and barrel.

It further consists of improved means for feeding the cartridges from the magazine.

It further consists of improved means for stopping the successive cartridges in the magazine as each is fed to the feeder, and for successively releasing them.

It further consists of improved means for feeding the cartridges to the receiver.

It further consists of improved means for locking the barrel to the breech-block during the recoil of the latter.

It further consists of improved means for 'withdrawing the firing-pin.

It further consists of other-novel features of construction, all as will be hereinafter fully set forth.

The annexed drawings and the following description set forth in detail one mechanical form embodying the invention,'such detail construction being but one of various mechanical forms in which the principle of the invention may be used.

In said annexed drawings Figure 1 represents a. longitudinal section of my improved fire-arm, illustrating the parts thereof in position ready for firing. Fig. 2 represents a longitudinal section of the tire-arm after iii-ing and with the barrel and breech-block recoiled. Fig. 3 represents a longitudinal section of the fire-arm with the parts in feeding position. Fig. 4 represents a longitudinal section of the lire-arm, illustrating Fig. 5

` hand side of the lire-arm.

the breech-block and carrier in elevation.` u represents a longitudinal section illustrating said parts as seen from thc left- 4 Fig. 6 represents a longitudinal horizontal section taken on the line -m in Fig. l. Fig. 7 represents a longitudinal horizontal section on the line l.1/--3/ m Fig. 4. Fig. 8 represents a side-elev ation of the fire-arm. Fig. 9 represents a side-elevation of a part of thebarrel and an axial sect-ion of the fore-arm and magazine. llFig. 10 represents a sectional detail view of the outer end of the fore-arm and magae zine. tion of the plug for the forward end of the magazine.

Fig. 11 represents `a transverse sec- F ig. 12 represents a top plan View of the breech-block. Fig. 13 represent-s a slde elevation of the barrel-extensionj Fig. 14 represents a perspective detail view yof the sliding stop for the breech-block. .F 1g. 15 represents a transverse section on the line z-z in Fig. 1. Fig. 16 represents a transverse section on the line a-co in Fig. 1. Fig. 17 represents a transverse section on the line b-; in Fig. l. Fig. 18 represents a transverse section of one-half ofthe receiver on the line 0 0 in Fig. 1. 'Fig 19 represents a front-end view of the receiver. Fig. 2O represents a part section and part side-elevationof the receiver and the ends of the barrel and magazine, Fig. 21 represents a longitudinal horizontal section on the line y-y in Fig. 4, showing the maga 'zine empty. Fig. 22 represents a top-plan view of a portion of the barrel extension and of the breech-block.

Similar numerals of reference indicate corresponding parts in the figures.

Referring to the drawings, the reference numeral 1 indicates the stock of the firearm, toV which a receiver, 2, comprising a top, 147, of substantially cylindrical outline, iat side-walls, 148, and a forward wall or block, 70, and having tangs` 3 and 4, is secured, all of which parts are formed from one integral piece of metal. A trigger vand. sea-r frame, 5, having a triggerfguard, 6, and longitudinal flanges, 7, is secured between the side-walls of said receiver, being inserted through the open bottom of the same. A trigger, 8, is pivoted between said flanges and has a. rearwardly projecting lugq 9, to which a post, 10` is pivotally connected, which post slides in a bearing. 11, between the flanges and has a spring, 12,

' upper tang,

whichltends to throw the trigger forward. The upperl ortion of the trigger has a forwardiy longitudlnal bore, 14, having a slot, 15, in the upper side of its forward end. A plunger, 16, slides in said bore and bears against a spring, 17, witlun the salne, and the forward end of said plunger has a web, 18, slidable in said slot and projecting to engage and be stopped by a pin, 19, secured between the ianges. :The forward end of the plunger has a nose, 20, projecting beyond the forward end of the arm of the trigger. A" sear, 21, slides with a nearly vertical slt, 22, upon a pin, 23, between the lianges, and has a Sear-shoulder, 24, upon its upper edge, and a shoulder, 25, upon its rear edge, which shoulder may be engaged by the nose upon the spring-plunger in the trigger-arm. A pin, 26, extends from the lower edge of the Sear and slides in a. bore, 27, in the trigger-frame, and a spring, 28, is coiled around said pin to force the sear upward.

The barrel, 29, has it rear, reduced and screw-threaded end secured in a threaded socket, 30, in the forward end of a barrelextensicn, 31, having a sliding fit within the upper portion of the receiver and having its bottom, right-hand side and rear end open. A breech-block, 32, has a sliding t in said extension and in the receiver, having footflanges, 33 and 34, sliding upon a shoulder, 35, and in a groove, 36, respectively, in the side-walls of the receiver. The rear end of the breech-block is formed with ears, 37, between which the forked forward end, 38, of a main-spring rod, 39, is pivoted upon a pin, 40, and the rear end of said rod bears against a piston, 41, sliding in a tube, 42, in the stock of the gun and bearing against a main-spring, 43, confined in said tube. The forward end of said main-spring tube is secured in an enlargement, 44, upon the and the rear end of the tube is secured in the foot of the stock, so that said tube serves as a fastening for the receiver to the stock, and the lower tang is secured to the stock by a screw, 45, passing through the stock and into said enlargement of the upper tang. The breech-block is formed with an oblique bore, 46, extending from the lower rear corner to the center of the frontface, and the forward end of said bore is contracted to form a stop for a shoulder, 47, at the reduced forward end of a firing-pin, 48, having play in said bore. A firingspring, 49, is coiled around the firing-pin and bears against a rearwardly-facing shoulder, 50, upon the pin, and against a threaded collar, 51, in the bore, to thro-w the pin forward. The rear end, 52,. of the firing pin is preferably flat or polygonal to slide in the correspondingly shaped rear portion of the bore, and has a forwardly-facing roJecting arm, 13, formed with a' Sear-shoulder, 53, which engages the upper shoulder of the sea-r when the breech-block is thrown forward. A longitudinal bore, 54, is yformed in the upper part of the breechblock, and a bolt, 55, is journaled to rock in said bore and has two oblique flanges, 56,

upon its rear port-ion, which flanges will be engaged by the ends of two fingers, 57, in the closed rear end of the receiver when the breech-block is thrown rearward, thereby giving the bolt a one-quarter turn. A torsion-spring, 58, has one end secured to the4 forward end of the bolt andits other end secured to a screw-plug, 59, in the forward end of the bore, to reverse the twist of the bolt when the latter is released from the fingers. A locking-screw, 60, secures the screw-plug against turning under the torsional strain of the spring. The bore of the breech-block has an enlargement, 61, opening through the top of the same, and the inner face of the top of the barrel-extension has a recess, 62, which registers with the opening of said enlargement when the breech-block is fully within the barrel-eX- tension with its forward end closing the chamber in the barrel. An eccentric block, 63, upon the rotary bolt fits tobe turned into and out of engagement with the recess in the barrel-extension, when such recess registers with the opening of the enlargement in the breech-block, whereby such breech block and extension may be locked together and unlocked by rotating the bolt. A camlug, 64, projects laterally from the eccentric block and through an opening, 65, in the enlargement of the bore for the bolt, into the bore for the firing-pin to engage a forwardly facing shoulder, 66', upon said pin, whereby the latter will be slightly withdrawn when the bolt is rotated, to draw its forward end into the boie. The eccentric block has an oblique shoulder, 146, and the rear end of the barrel extension has an oblique edge, 147, which willengage such oblique shoulder when the breech-block moves forward to turn the rotary bolt and permit the eccentric block to be turned and pass beneath the extension as the breech-block moves forward.

A magazine-tube, 67, has its threaded rear end, 68, screwed into an opening, 69, in the forward wall or block, 70, of the receiver. A spool-shaped plunger or follower, 71, is slidable within said tube and has the lrear end of a coil-spring, 72, bearing within a socket, 73, in the forward end of the, plunger. The forward end of said spring bears against a` plug, 74, secured in the forward end of the tube.V Said plug has a diametrical slot, 75, within which a longitudinally slotted shank, 76, of a finger-piece, 77, slides upon a pin, 78, passed through the plug at right angles to the slot. The forward'portion of the slot in the plug extends through the sides of the same, and" the tube has cory responding slots, A79, in lits end, so that the linger-piece can be drawn out and turned at a right angle upon the pin to have its shank engage the slots in the tube, as indicated in dotted lines in Fig. 1"0 of the drawings, when the tube may be turned to screw its rear end into or out of the threaded opening in the receiver. A fore-arm, 80. has the smaller 4forward portion, 81, of its bore fitted upon the tube and its rea-r end secured in the front-block of the receiver by a tongue-and-groove connection, 82. A col-lar, 88, is secured upon the forward end of the tube by means of screws, 84S, movable in slots in the tube against which the plug bears and bears against the forward end of the fore-arm, thus securing the latter to the tube. A collarbracket, 85, is secured upon the under side of the barrel to be slidable upon the tube and within a large rear portion, 86, of the bore in the fore-arm, and a coiled action-spring, 87, coiled upon the tube, has its forward end bearing against the slidable collar. and its rear end bearing against a rigid collar, 88, upon the tube. f

A carrier comprises a long ,ritudinally7 slotted arm, S9, having a headed .finger-piece or stop, 90, sliding in its slot, and extending forwardly from a yoke, 91, having area-rwardly extending long arm, 92, and a rearwardly, extending short arm, 93, at its ends and fulcrumed upon a pin, 94, secured through the forward ends of the flanges of the trigger-frame. The forward end of the slotted arm extends to near the rear end of the magazine-tube. -A cam-arm, 95, carrying a roller, 96, in its outer end, is pivotedl upon the rear end of the long actuating arm 92 of the carrier, and the inner end of said cam-arm has a cam-surface, 97, which bears against a spring-bolt, 98, vin a bore in said actuating arm and having a= spring, 99, forcing it rearward. The short arm of the carrier has a shoulder, 100, upon its lower edge,

against which bears an upwardly acting spring, 101` so that the normal tendency of the carrier is to have its slotted forward arm tilted downward, ywhile said spring is weaker than the spring within the arm. The inner face of the left-hand wall of the carrierchamber, 102, in the receiver, has an undercut recess, 103, at its rear edge, in which slides a locking-bolt,104, having a spring, 105, forcing it upward. and formed upon its upper end with a hump, 106, or cam inclined forward and rearward, and lwith a rearwardly facing shoulder, 107, which engages a notch, 108, in the forward end of the under side of the breech-block. A cambulge, 109, is formed upon the rear end of the lower edge of the barrel-extension to depressf the hump and locking-bolt when the barrel is moved forward after recoil. The inner face of theright-hand wall of the carrier-chamber has an undercut recess, 110,- at

its forwardv edge, in which slides a flat bolt,

111, having a spring, 112, forcing it up'- `ward, and formed upon its upper edge witha rearwardly facing, steeply inclined camshoulder, 113, which is engaged and depressed, when the breech-'block is inl its forward position, by a cam-lug, 114, projecting downward froml the side of said block. The inner face of said bolt has stop-lug, 115, at its forward edge, which lug will project inward, a short distance across the rear end of the magazine tube, when the bolt is in its upper position, to stop rearward movement of the cartridge in the magazine, and leave such end unobstructed when the bolt is depressed.

A lever. 116, is fulcrumed within the righthand wall of the receiver to rock laterally, and the forward end, 117, of said lever is bent inward to project into the rear end of the magazine, and hasits widened inner end inclined in opposite directions. The rear arm of this lever is inwardly inclined, and the rear end, 145, is bent upward to engage a notch, 146, in a pin, 118, transversely slidable and rocking in the sides of the receiver. Said notch is of sulicient depth to admit of the pin rocking and of the end of the arm engaging it. A spring, 119, bears against a shoulder upon the pin and is con` nected to the pin and the wall of the receiver, so as to normally push the pin to the right and at the same time exert torsion upon the pin.` A stop or pawl, 120, projects upward and rearward from the pin to engage a notch, 121, in the under side of the breech-block when the pin and pawll are moved to their extreme right-hand position by the spring, when the lever is free to rock by the inwardly bent forward end of the latter being free to enter the rear end of the magazine when the latter is empty or versely sliding pin projects beyond the outer face of the wall bf the receiver to admit of the pin being shifted by pressure upon the projecting end.

A stop-lever, 122, is pivoted in a recess.l 123, in the inner face of the left-hand wall of the carrier-chamber, and has a spring, 124, bearing against its rear arm. normally holding said lever flush with the face ofthe wall, and the forward arm of said lever has a stud or butto-n, 125, extending'through the wall of the chamber to admit of the forward arm of the stop-lever being projectedV into the carrier-chamber.

A spring-actuated hooked extractor, 126, is pivotally mounted in a groove, 127, in the forward end of the right side of the-breechblock to enter the chamber of the rbarrel and engage the rim of the cartridge, so as to extract the shell as the breech-blockv recoils.

A longitudinal groove, 128, is formed in the inner face of the side of the barrel-extension, and has an enlargement, 129, and a sprin ejector, V130, is'secured with its head, 131, 1n such enlargement, and has a forwardly-facin shoulder 132, at its free rear end. The le t-hand side of the breech-block has a groove, 133, toadmit of'said shoulder proj ecting beyond the face of the wall.

The forwardly extending arm. of the trigger is formed with a shoulder, 134, at the inner end of its under side, and with a notch, 135, adjoining said shoulder. A safetycatch is formed by a slide, 136, longitudinally slidable over a slot, 137, in the triggerframe and having an upwardly projecting lug, 138, upon its rear end and a fingerpiece, 139, sliding in the slot. When the slide is moved to bring its lug beneath the shoulder of the trigger-arm, the trigger cannot be pulled, and when the slide is moved to bring its lug to register with the notch in the trigger-arm, the trigger may be pulled. The upper side of the slide has two notches, 140, which are engaged'by the end of a spring, 141, so that the catch may be held in safety or free position. The right side-wall of the carrier chamber has an ejectionopening, 142, with which the open side of the barrel-extension registers when in yforward position. The trigger and sear frame is secured in the receiver by a screw, l143, and the bolt 94, upon which the carrier is fulcrumed.

In practice, when the magazine is to be loaded, the shells, 144, are inserted through the open bottom of the carrier-chamber, pushing the slotted carrier-arm upward, and are pushed into the rear end of the magazine, each shell pushing the plunger forward in the magazine. The stop-lever is pushed inward by its button as each shell is inserted, to stop the shell from being again pushed out by the magazine-spring. As soon as the loading is finished, the slotted carrier-arm flies downward, and the lastinserted shell is, forced rearward with its head bearing against the sliding stop in the slotted carrier arm. When now the barrel is pushed rearward, it will move the breechblock with it and release the bolt or cartridge-stop carrying the lug, so that such stop may move upward, bringing the lug upon the same into the path of the succeeding cartridge and preventing the same from entering the carrier-chamber. The barrel is now pushed rearward, carrying the breechblock with it, and when the breech-block arrives at its rearmost position, the shoulder upon the locking-bolt will move upward and engage the notch in .the forward end of the breech-block and retain it in such position. The rearward movement of the breech-block will tilt the cam-arm upon the long arm of the carrier rearward, placing the springbolt in said latter arm under tension. When the barrel is again allowed to .be drawn forward by the action-spring, the spring-bolt will tilt the carrier to raise the slotted arm and the cartridge, to bring the forward end of the 'same in register with the chamber of the barrel and its head in line with the for- Ward end of the breech-block, as seen in Fig. 3 of the drawings. ,When the barrel and its extension arrive at the forward end of their movement, the cam-bulge upon the barrel extension will bear against the hump upon the locking-bolt and depress the same, disengagin its shoulder from the notch in the breechlock and allowing the latter to move forward under the action of the mainspring. .The forward movement of the breech-block straightens the cartridge and carries it forward into the chamber of the barrel, as seen in Fig. 1. The rearward movement of the barrel and breech-block caused the rear end of the rotary lockingbolt in the latter to have its `oblique flanges engage the fingers in the rear end of the receiver to be rotated, thus bringing the eccentric block upon the .rod out of engagement with the' recess in the barrel-extension to allow the barrel and extension to be ymoved forward by the action-spring without moving the breech-block and, at the same time,

allowingthe cam-lug upon said block to engage the Ishoulder upon the liring-pinto draw the latter partly into its bore, so'that its projecting end shall not strike the fulminating'cap of the cartridge when the breechblock moves forward. When the breechblock moves forward and the oblique flanges upon the rotary bolt are released from the lingers, the oblique edge of the barrel extension engages the oblique shoulder of the ec'- centric block upon the rotary bolt and keeps the same turned so that the breech-block may pass into the barrel-extension. As the breech-block moves forward, the searshoulder vupon `the tiring-pin engages the shoulder of the sear, drawing such pin into the block as the latter moves forward. When said block arrives within the barrelextension, the torsion spring will rotate the rotary bolt to turn the eccentric block into the recess in the breech-extension and to disengage its cam-lug from the firing-pin. When during these movements the breechblock arrived at its foremost position, the cam-lug upon its forward end depressed the locking-bolt in the forward end of the carrier-chamber and allowed another cartridge to be fed onto the carrier-arm, which tilted down as soon, as (the breech-block released the cam-arm at the rear end of the carrier. When the trigger. is pulled, it will pull down the sear and release the firing-pin, whose spring will drive it forward'to strike the fulminating cap, exploding the cartridge. The recoil of the explosion will recoil the zo't breech-block and, the latter being locked with the barrel extension, the barrel and extension will also recoil, and the above' described action will be repeated, with the addition that, as there nowis an empty shell in the chamber, the extractor will pull the latter out ofthe chamber when the barrel travels forward and the shoulder of the ejector in the extension will tilt such shell when it strikes the head'- of the latter, and eject itV through the ejection-opening', whereupon a fresh cartridge is fed and the operation may be repeated; As the plunger in the arm of the trigger is drawn inward by the webupon the same engaging the pin 19, and its nose is-consequently disengaged from the shoulder 'upon the sear, when the trigger is fully pulled, the sear can again` move upwa-rd in position-to engage the shoulder upon the firing-pin while the trigger is yet held pulled. When the last cartridge in the magf a'zine has been fed, theV spool-shaped follower moves into the carrier-chamber, and

the inwardly projecting' cam-end of the stop` lever 116 is forced inward, the lever is rocked, and the transverse pin is moved to the right by its spring, placing the pawl thereon in the path' of the notch in the under side of the'breech-block. When the breechblock recoils at the next fire, the pawl will' engage the notch in the breech-block and stop the same in its rear position while the barrel and extension will move forward, ejecting the empty shell. New cartridges may now be charged into the magazine through the open bottom of the carrier. chamber, the finger-operated stop-lever-l preventing the magazine-spring from forcY ing the cartridge back, until the magazine is fully charged, when the gun is again ready for action. The cartridges in the rear end of the magazine keep the pawl in inoperative position by bearing against the cam-edge of the inturned end of the lever 116, and it is only when the magazine is empty that the pawl' is in operative position and holdsthe breech-block in its rear position, from whichv it may be released by pressing inward aL ainst the sprin upon the projecting end of the transversely movable pin. If it is desired .to fire the last cartridge before reloading'the magazine, the pin 118 may be pressed to release .the breech-block. Otherwise, in reloading, the first cartridge loaded into the magazine' releases the breech-blockl to drive the remaining cartridge in the carrier into the chamber. A cartridge may be forced from thel carrier into the chamber of the barrel by means of the linger-piece sliding in the slotted arm, so that an eXtra cartridge may be fed into the magazine.

The gun may be taken down by pullingout the .finger-piece at the forward end of the magazine and tilting it laterally, when the magazine can be unscrewed by the Same from the receiver and removed together with the fore-arm and the barrel and: extension.

'Ihe trigger 'and sear frame may be removed from the receiver by unscrewing the fastening-screws, and the breech-block may be slid out of the forward end of the receiver when the gun is taken down. l

Other modes of applying the principle of my invention may be employed for the mode' hereinexplained. Change may therefore be 'made as regards the mechanism thus' dis- .openings, a trigger and sear carrying frame detachably secured between said side-walls, a magazine tube having its rear end detachably secured in an opening 'in said front wall, and a barrel4 and extension slidable in the top o-f saidframe and through said front wally and having a slidable connection upon said magazine-tube.

2. In an integral fire arm, a receiver frame comprising a ,top of substantially cy.- lindricali outline and Hat side-walls and having tangs at its rear end for attaching it to the stock and aforward wall formed with lan arched upper opening and a screwthreaded lower opening, a trigger, carrier and sear carrying frame detachably secured between the rear portions of said side-walls in the open lower side of the same, a magazine tube having its rear screw-threaded end secured inthe threaded opening of the frontwall of the receiver,va barrel-extension slidable in the top of the receiver, -a barrel having' its rear endsecured to said extension, a

collar-bracket secured to said barrel and sliding upon said magazine-tube, and a coiled action spring upon said tube and bearing against said collar-bracket to fo-rce the same forward.

3. In a irearm, a receiver, a barrel formed with a rearward extension slidable in said receiver-,and formed at the rear end of its edge with a cam-bulge, a breech-block slidablev within the receiver and barrel eX- tension and formed withv a notch in its forward end, separate 'means connected to said barrel and block for automatically drawing them forward, and a locking bolt formed with a cam adapted to be engaged by said cam-bulge to be depressed by the same and with a shoulder adapted to engage said notch and having a spring for forcing it upward. y 4C. In a -rearm, a receiver, a barrel having an extension Vat its rear end slidable in said `receiver and formed with a recess in the inner side of its top, a breech-block slidl able in said receiver and extension and formed with a longitudinal bore having an enlargement opening to register with said recess when the extension and block are in their forward positions a bolt rotatable in said bore and provide with an eccentric block in said enlargement capable of engaging the recess in the extension and with a projecting rear end having oblique flanges, fingers projecting from the rear end of the receiver to have their ends engage said flanges to rotate the bolt, and a torsion spring connected to rotate said bolt.

5. In a fire-arm, a receiver, a barrel having an extension at its rear end slidable in said receiver, a breech-block slidable in said receiver and extension, a firing-pin slidable in said block and formed with a shoulder, a spring forcing said pin forward, a bolt rotatable in said block, and provided with a cam-lug adapted to engage the shoulder of the firing-pin and with a rearwardly projecting end having oblique flanges, fingers projecting from the rear end of the receiver to have their ends engage said flanges to rotate the bolt, and a torsion spring connected to said bolt to rotate it in the opposite direction. t v

6. In a fire-arm, a receiver having a carrier-chamber in its forward portion formed with an open bottom, a magazine having its discharge end opening into said chamber, -a barrel in said receiver, a longitudinally slotted carrier-arm pivoted at its rear end to tilt in said carrier-chamber, and a fingerpiece sliding in said slotted arm and formed with a stop against which the head of a cartridge may bear, whereby a cartridge may be manually inserted into the chamber of the barrel.

7. In a fire-arm, a slidable breech-block, a firing-pin slidable in said block and having a spring for throwing it forward and formed with a forwardly-facing shoulder projecting at the under side of said breechblock, a substantially vertically guided sear formed with a Sear-shoulder upon its upper end for engaging the shoulder of the firing- -pin and a shoulder at its rear edge, a. spring bearing upward upon said sear a trigger having a spring for throwing its free pulling end forward and a forwardly-extending arm formed with a bore having a slot at its forward end, a spring-actuated plunger in said bore and formed' with a nose at its forward end to engage the rear shoulder of the sear and with a web slidable in said slot, and a rigid pin against which said web abuts.

8. In a fire-arm, a receiver, a barrel having an extension slidable in said receiver, a breech-block slidable in said receiver and extension and formed with a lnotch at its rear end, means for automatically drawing said extension forward, means maecla forl automatically moving said breech-block forward, a lmagazine-tube enterin the for-l wardend of sa1d receiver and havin means forffeedin the cart-ridges rearwar la carrier in sai receiver for feedin cartridges to the' barrel, a lever fulcrumed ceiver and having an end formed with a camsurface projecting yinto` the rear end of the magazine tube, anda pawl arranged in .the path of the notch in the breech-block to en.-

gage the same and connected to said lever, to

e disengaged from said notch when the cam-surface is engaged and'actuated by a cartridge in the end of the magazine.

9. In a fire-arm, a receiver, a barrel and extension slidable in said receiver, a magazine-tube having its rear end screwed into said receiver a ore-arm having its forward portion 'fitted upon said tube, a.V collar bear- .ing against the forward end of said forearm and havin means for clamping-it upon the tube, a co ar-bracket secured to the barrel and slidable upon the magazine-tube, an action-spring around said tube and bearing against a flange upon the same and against the collar-bracket, a follower and spring within said tube, a plug closing the outer end of said tube, and a finger-piece slidable in said plug and adapted to be latarally swung to engage said plug and tu in the resovv 10. In a fire-arm, a receiver, a barrel hav- Y ing an extension at its rear end slidable in said receiver and said extension formed with a recess in the inner side of its top and with an oblique edge at its rear corner, a breechblock slidable in said receiver and extension and formed with a longitudinal bore having an enlar ement opening to register with said recess w en the extension and block are in their forward positions, a bolt rotatable in said bore and provided with an eccentric block in said enlargement capable of engaging the recess in the extension and formed with an oblique shoulder and said bolt also provided with a projecting rear end having oblique flanges, fingers projecting from the rear end of the receiver to have their ends engage said flanges to rotate the'bolt, and a torsion spring connected to rotate said bolt.

11. In a re-arm, a receiver, a barrel having an extension at its rear end slidable in said receiver, a breech-block slidable in said receiver and extension, a firing-pin slidable in said block and formed with a shoulder, a spring forcing said pin forward, a bolt rotatable in said block, and provided with a cam-lug adapted to engage the shoulder of the firing-pin, means for rotating said bolt at the rear eXtreme of its stroke to partlywithdraw said firing-pin, and a-torsion spring connected to said bolt to rotate it in the opposite direction.

12. In a fire-arm, a receiver, a barrel, a magazine parallel with said barrel, a breechblock slidable in said receiver and having moved means for automatically throwing it forward, a stop arranged said block when lin its re to engage and hold armost positionfand 5 a lever ulcrumed in said receiver and having a camat onel end rear end of the magazin projecting into the e to be engaged and by the contents of the same, and oo nneeted at the other end to said stop to disengage the same when so moved.

HENRY B. FEBIGER. Witnesses JNOJC. FEBIGER, '.Tr., W. W. YOUNG.