US1126726A

US1126726A - Automatic magazine-firearm.

Info

Publication number: US1126726A
Application number: US79361813A
Authority: US
Inventors: Frederick A Diestelkamp
Original assignee: Individual
Current assignee: Individual
Priority date: 1913-10-06
Filing date: 1913-10-06
Publication date: 1915-02-02
Anticipated expiration: 1932-02-02

Description

Patented Feb. 2

.4 SHEETS-SHEBT'L I A if. Y .,r....... A 21.... ...s

Patented Feb. 2, 191.5A

4 SHEETS-SHEET 2 P. A. DIESTBLKAMP. AUTOMATIC MAGAZINE FIRBARM.

APPMGATION FILED 00116, 1913.

f QQ@ f mw y F. A. DIESTELKAMP..

AUTOMATIC MAGAZINE FIREARM. AYPLIGATION FILED 0016, 191s.

Patented Feb. 2, 1915.

FIA. DIESTELKAMP. AUTOMATIC MAGAZINE FIREARM. APPLIGATIQN FILED UGT. 6. 191,3.

Patented Feb. 2, 1915.

4 SHEETS-SHEET 4. 4'

3, un a n z o 35 l 'causegtheiollower tolmoreupy'a'dWithin athemagazine Vchamber and positively vfeed a new. and useful Improvementl in--Automatie MagazinefFirearms, 'of which the following- To whom .it may concern:

lUNIT6E@sin :aannemen n, DIESTLKAM'P; or'I umn-missouri.

Avremmo p Be itknown that I, FREDERICK A,

KAMP, vcitizen of the United States, residing Lat. Bland, in .thefcounty of Gasconade andI State of Missouri, hare 'invented certain is a specification'.

My invention relates to'rear'ms and parjticularly .to automatic firearms.

' The pri mary objectof .my invention is the 'provision ofa'magazine Vfirearm wherein" positive meansShall be provided 'l for 'shift ing, the magazine.. followerupivard; tol-feed.

the cartridges' one by one into thereceiver. .y A .further objectof theinyentioninthis -connection is tojproxjide means whereby. to

indicate to the user the Anumber ofv cartridges remaining in themagazine..

pro-vision' of means whereby theloreecl'iY block' may befd'raw'nfback byhand to cock'fgthe'. hammer incase-'of a .misire or to -return'the- .part-s' to firing` position an'd operate tl1e`- rile. A further object :of the invention is to proj' vide aiirearm-hani'nga' magazine and la fol- I `lowerv with a' flexible follower operating band or chaii'rgv and to proyi de means for taking'up thisY band apredet'ermined distance A further ob'ect vin.`th. isl connectionwis 'to acting yto v return. the follower actuating. and-'toits' normal pojsfitlcin y Q .jandf-therean endof the .forearm is invuponV each' dischargeof thefgnn to thereby cartridge into the receiver.-

lprovide.y a i sprin fhasf-bemgfed @seeth/@ vbleach to' permitirle "whereby the loreec'hhlockA may be locked in.i

return of the-follementeitsY normal position and t'opermit. the magazine 4be filled'againv Withcartridges. K

Still another Objectis to providefmeans ,further Yolijiect of the invention 'the'v ally operated-:means .for .opening the of; a'

the magazine when desired.

A een; further' Objet@ enden@ f the min' objects," is l to provide 1.a breech block 'that will'flo'ck behind the barrelandsogive vthe :YV projectile ltime teclear `the barrel -whil'e the' block is"un'l0cking,1and While theharrelref mainsperfectly stationary. 5 My invention is illustrated in theaccompanying dra-wings, Wher'einr-fe v: Flgure 1 1s a Vperspective View oa, firearm constructed "in accordance with my inven-x tion; j FigfQ. i/s an. enlarged' vertical y section throngh the firearm, `this section being taken .on theihne 2-2 of.Fig. 4 Fig. 3 is a section' on the 11ne33 of 2 Fig. 4 is .section j tn dinal ,section on the line; 5 -55 of Fig.' 2;' 1T-ig. 6, 1s a section. on the line `6-6 of Fig. 2 Fig.- `7 is a perspective View of; the mechanism-for. operatinghe loading door 'Fig-ix' d lOis` a perspective View of the .breechbolt and, of `the firing pin.y separated therefrom; Fig-1111s aQperspectiVe View of the breech liloclrand the mechanism for manuallyrretivfejview of thcpaiil release mechanism;

' Corresponding f and ,like partsare referred 'to in the' following description-and indi?` catedjin' all the views oflthefaccompanying drzmmgsv by the vsame Vreference characters,

fsertedwithin a` socket. inthe. receiver, the f orxyjard- 'endbeing held tothe barrel in any suitable mannen," Thejstock-.is .held'to the 4'receiver by meansfof upper. and lower tangs.l The receiverllis Ahollow to 1 contain the .firing and cartridge feeding mechanism, and forming part ofthe receiver `is the magazine .6'

i-nwrbi'ch thecartridges.,rI are disposed one ontop. ofjthecther. As will be seen in Fig'. fl'. the lower portion of the receiverisdivirfled'into `two 'part by'lneans of a vertical .wall 7, thel cartridges a beingcontained isa perspective View of the mechanism' for 1 operating the loading doorl and'for locking. the trigger; Fig. 9 is a perspective 'View of' the cartridge feeding Wheelsor. rollers; F

Referring. tel41 ig. 1 it willy be seenthat'my .im l

' the bore of the barrel.

l receiver and normally immediately behind and Aabutting against the rear end of the barrel. 2, is a 'cylindrical hollow. breech block, and disposed within the interior of thisgbreech block 9 and normally projecting therefrom is a piston constituting a breech bolt' iid designated 10.

l* This piston has the lia'pe illustrated in Fig. 10. The forwardl portion of the breech bolt 101has a diameter equal. to that of the cartridge chamber 11 formed by the rear portion of The rear portion of the breech bolt is reduced in diameter so as to pass through a perforation 12 formed in therear end of the breech block, while adjacent its head the. breech bolt is enlarged asvat 13 and formed with relatively heavy screw threads which coact with relatively heavy screwl threads 14 form din the interior of the forward portion of t e breech block. A spring 15 surroundsthe ear portion of the breech briltfand is dis osed between the perforated end of the cylindrical breech block 9 andthe head 13 so that nor- .nally the 4breech'bol orced forward so as to abut against th' lrtridge a in the .manner shown in Fig.- 2.' The forward end of the breech bolt is formed with resilient hooks 16 adapted to engage over'the rim if al cartridge as` illustrated clearly in Fig. 10. The breech bolt is tubular, and disposed within the breech boltA is the firing Jin'17 which projects out through the rear.

ond of the breech bolt andis formed with a head 18.. Disposed between this head '18 `51`hiforward end of the cylindrical breech block 9 as illustrated clearlyin-Fig. 11 is provided with af plurality 4of radially directed locking lugs 21. There are four of these lugs illustrated, shown as arranged in' quartering relation. 'of the receiver just rearward .of its polnt of attachment'to the barrel isalso provided on its interior with four radially projecting,

inwardlyV extending locking lugs 22 shown. clearly in Fig. 4. Normally the lugs 21 are disposed in registry with the lugs 22 and prevent 4any rearward movement of the breech block. lll/*hen7 however, the breech bolt or piston 10 is.l forced rearward by the firing of a cartridge, the screw threads 13 engage the screw threads 14 and this causes a rotation of the lbreech' block through -an eighth-cfa revolutionuntil the lugs 21 escape Vfrom registry with the lugs 22, whereupon the cylindrical breech block will move.

The forward end rearward togetherwith thebreech bolt in cally stated.

For the purpose of preventing any rotation of the breech'bolt 10, I provide the head 19 with laterally extending wings 23 as` shown clearly in Figs. 5 and 10, these wings engaging in guide grooves 24 exa manner to be hereafter and more 'specifitending longitudinally of the receiver, and.

for thepurpose of urging the breech bolt and the breech block forward, T provide the springs 25 disposed/one en each side of of the rearward moving breech block and breech bolt has been sufficiently reduced, the springs 25 will act to return the parts to their initial position.

Mounted within the receiver at the rear end thereof and extending upward and forward therein, and projecting at its rear end partially into lthe stock, is the hammerl 27 This consists of a straight rod as shownin Fig, 8 which impinges against the downw wardly and forwardly beveled face of the head 18 and whlch -is surrounded by a coil spring 28 bearing at one end against the .flanged en'dfof a sleeve 29 andat its other end against uau collar 30 formed upon the hammer. This collar as illustrated in Fig. 8 isl provided with the downwardly and forwardly projecting lug or tooth 31 for engagement with a sear as will be later stated. The trigger is4 mounted within the trigger plate 32 which forms part ofthe receiver, though it may be a separate piece. This trigger plate is slotted at 33 for the' down-V ward prolongation or finger piece 34 of the trigger 35. The trigger 35 is pivoted upon a pivot pin 36 mounted in bearingsv on the trigger plate. As shown in Fig. 8, the trigger has a rearward extension 39, to which is'pivoted an upwardandrearwardly eX- tending link 40.- This link at is upper fend ispivot'ally connected to a sear41 Vin turn rotatably mounted upon a bracket `42 mounted within the receiver. This bracket 42 extends upward soas tosupport the sear 41 adjacent to the line of travel of the tooth 31I on collar 30. The forward vend-of the sear is formed .with a hook 43 adapted to engage over the tooth 31 as illustrated clearlyin 8.- A spring 44 tends to force the rear' endv of the trigger downward and this,'o`f course, will force the forward end of the sear upward. The forward end of this sear forward ofthe hook 43 is rounded or beveled. The trigger is also formed with a -fiorward prolongation i5 whose lower face :s slightly elevated above the pivotal center of the trigger for a purpose which will be later described.

- the force o' the spring QS. .This downward and rearward movement of the hammer will continue until the breech block and bolt with the rear end of breech block and .breech bolt, and at this-point the tooth 3l will slip into' engagement. with the hook -l and the parts will assume the position shown in Fig. 2. The hammer is then cocked and it will be obvious that upon a pull be ing given to the trigger, the forward end of the sear will be depressed,.thus releasing the hammer. The hammer will spring 'tor- Qv'vard under the impetus of the spring 2S and impinging upon the firing pin will force the firing pin forward to explode the Cartridge.' AAs soon as the pressure of the finger upon the trigger has been released, the spring will act to return the triggerv @to its normal position with the hook 43 1n vthe path of movement of the tooth 31. I -also provide means whereby the hammer @aan be cocked by hand in case of misfire but 'this will be later described.

:The mechanism for feeding' cartridges from the magazine 6 consists of a 'follower 46 normally disposed, when the magazine full, at the .lower end of the magazine but 'movable upwardly between the walls T and Sto feed the cartridges one by one into the receiver. Disposed forward of the magazine in a chamber -l is a shaft S and surroundingV theshaft is a convolute spring i9 which Iisboperatively connected to one end of a flexible chain or band 5.0. This chain passes vfrom the compartment li beneath a roller parallel to the rear wall of the magazine and over afroller 53 mounted upon the upper end of this" rear wall. 'The flexible connection is connected to the follower by means of 4an inwardly extendingscrew or pin 5 and a guide block 55 which is attached to oneend of the'follower. lThis guide block enovesin guide grooves 56 formed in the opposite walls of a slot 57 which extends upward- 'hrough the 'rear wall of the magazine'. It

, from the wall of the receiver.

`cartridge into the receiver.

Will be obvious now that .by drawin the flexible connection rearward, the sli e or block will be raised and this Will cause the follower to be raised and elevate the cartridges a.

For the purpose of automatically winding up the flexible connection 50 and thereby raising the Vfollower 46 I; provide the winding wheel 5S illustrated in detail in Fig. 9. This winding wheel, roller or drum 58 is mounted upon a shaft 59 which is rotatably mounted in suitable bearings formed in the receiver, this shaft also carrying upon it the toothed wheel 60 Aas illustrated in Fig. 9. At one point 1n its circumference the winding roller or drum 5S is formed with an upwardly projecting lug 61 through which passes a rod 62 which is operatively 4connected to the re'ar end of the flexible connection,50, preferably by means of a spring 63, there being a nut on the 'end .of the rod wherebyv the tension ofthe spring may be regulated. The.wheel or roller 58 is also provided with the radially extending stop lug 64 which when the magazine is full bears against a' stop shoulder 65 projecting As illustrated, the wheel 5S upon its left handfece is provided with a plurality of numerals disposed equidistantly and/running as illustrated from l to 8, it being of course understood, however. that there may be a greater .number of these numerals or less depending 4upon the number or cartridges held 1n thev magazine. As illustrated, there are seven cartridges in-the magazine and one in the bar-rel and eight numerals, thenumeral l being located adjacent to the lug GL The side wall of the receiver is formed with a perforation 3a, (seen in Fig. l) through which these numerals may be read, this perforation being so located that when the magazine is full and has, for instance, seven cartridges therein, the numeral S will show, while whenthe magazine has only one cartridge therein, the numeral 2 will A'be displayed. Forth@ purpose of shifting the wheel 5S a predetermined distance upon each opening of the breech. l pivotallymount upon the breech block 91 the downwardly and rearwardlyextending pawl 65 as seen clearly in Fig. This pawl is held in its.. engaging position by means of a spring 66. llpon a sufficient'rearward movement 0I the breech block 9 to fall?.v open the breech, the pawl G5" engages with oneof the teeth 60 upon the wheel G0 and this engagement'- will ot course cause the wheel GO to rotate, rotating the shaft 59 and thewheel 58 a dis` tance .suiicient to wind up a certain length of the flexible connection 50 and-so force a l'l'polna return movement of the breech block, the pawl wilhg-of course, yield and escape theteeth 605.] The-Wheel-GQ is' held from any'reverse rotation by means of a hook-shaped pawl .67 pivotally mounted upon a pivotpin 68 ex-v .l vtending Afrom the wall of the receiyelg; the

upper end of the pawl being hook-shaped lto engage over the teeth a. l Theupp'er end f ofthe pawl is yieldingly forced 'inward' by lmeans of a spring 69 surrounding the pin 70 .bearing against the pawl as Shown in Fig. 2.-

he. lower end of thepawl is formed with a forwardly and laterally pfojbft.

-arm 71 (seeFig. 7).'

The ejecting mechanism whereby the empty shell Ais ejected from 'the receiver is illustrated most clearly inFig. 2 and' is also illustrated in `Fig. 4.' As will .be seen from Fig. 4, the receiver isdivided into two `compartments by the vertical wall 7, one of these compartments 'forming the magazine .while the other compartment '7EL forms an ejecting chamben Mounted upon theupper end of the wall 7 is a magazine gate 7 2 which is normally held over the vuppermost carJ tridge. When the uppermost cartridge is dischargedintothe receiver this door 72 will open, but immediately upon the passage of the cartridge into the receiver the 'door will swing back 'into the position shown in Fig. 4. Pvotally mounted yupon the upper wall ofthe lreceiver is a bell cranklever 73 having a long arm and-a short arm. The long arm normally extends forwardand isdesignated 74 while 'the short arm extends nor# mally downwardfand is connected .to a rpd l-75 which extends rearward and in turn is connectedto a lever 76 forming a nger.- Thisleveris pivoted as at '7 7 to the upper wall of the receiver, and a spring 78 resiliently urges the lower end of the finger forward. This finger is disposed inthe path of Increment ofthe 'breech block 9 Aso 'that when this breech block' is forced back by the recoil of the discharging' cartridge, it'will contact with the lower end of the finger'-G, shift it rearward, pull rearward' 'upon .the rod 75 and throw the long arm ofthe bell crank lever 74 'downward into the receiver and against the exploded shell held upon the breech boltlO b v the yspring clip 16. The

lougarm 74. of thisejector lever will, there' l fore, force the empty shell out .of its en.- gagen'ient'with the springclip 16 and cause this shell .to drop into the ejecting chamber 7@ and 'be discharged from the lower end thereof ontothe ground.. It will be noted that the shell is not discharged laterally so that it will Hy in alldirections but that it.

m ovement.

locking vthe trigFger, 1 provide the mechanism illustrated in' ig. 8'.'f."1`he

door

7,2 itiwill be' seen is mounted uponagrock shaft 7 9 havmg a crank arm A` 80 atrone end. Thisv rock shaft is mountedl 'insuitable bearings in the, forward andrear wallsof: the magazine. Thel extremity' of the crank. arm: 80 1s con# nected to aspring 81 whichimturn is conn cted to a 'bracket 82. Passing upward t rough this bracket 82 isa rod 83 normally .forced upward by a spring 84 bearing against a collar 85 on the rod'.v 'This rod as illustrated in Fig.- 6 is sqaisposezi in the receiver thatits upper/end is normally in contact with one of the lugs 21 on 'the breech block, yand when the breech 'blockis rotated in the direction of the arrow, Fig. 6, it will release the rod 83 and permit itto be'forced up by a spring 84." The lower end ofthe rod 83 is connectedto vonearmiof abell crank 86, the otherarm of which is piyotally connected to a 'rod87 which extends rearward through the receiver. The rear end of this rod is disposed adjacent to the forward end of the extension 45 ofthe trigger 35.-. When the triggeris releasedV after firing, this forward extension 45 willrise and at the mo'- ment that thebreech block beginsto rotate the rod 87 willv be forced rearward bythe' mechanism heretofore described and the rod 87 will be inserted betweenl the lower face 'of the extension 45" and the trigger plate',`

tion and 'preventing any rearward 'movement of-the trigger under pull. Ialso pro-` 'vide as means 'for locking the trigger, an angular cam lug or lock 88,' shown in Fig;

. thus locking the trigger inits lforward posi- 2, which is'pivoted upon the trigger plate'at1 89.- ."The downwardly extending arm of this member' projects below the'trigger plate-into.

position to permit the member to bel rotated `hold'this locking camffrom any accidental 1105, vupon its pivot 89 so as to bring the camper.- ltion thereof to bear against the underfface' 45 of the trigger and moveit upward andhold it insthis position. 'A spring 90 actstollt'will' be noted that as the cartridges faire ejected one by one from the magazineinto the receiver,the indicating wheel 58 will turn step by step'andthe follower willrise vuntil it arrives at theupper end of the maga zineand the last-'cartridge has been forced into the receiver. In' order to provide means for automatically returning the follower to its original position immediately after the lastcartridge has been discharged, Iv provide mechanism for releasing the pawl 67 from its'engagement with the vwheel 60 and also locking the breech block and bolt intheir retracted positions until the magazine has' been refilled anda new cartridge inserted in- To this end, I' pivotally I' the open breech. moua-it m the lower portlon of `the receiver the 'lever 91, as shown clearly in 2 and T. This lever 91 is laterally oset toward its forward end, and is provided with the upwardly and forwardly extending arm 92 formed with a hump 92a at its middle, and

. with an upward extension 92b extending forward at only a slight inclination. This arm is disposed in the path of movement of the lug 64 so that when the wheel `58 has moved the lug 64 into engagement with the arm' 92,

the forward end of the lever will be deof the forward end of the lever, this lug 95 will shift the. pawl 6T out of engagement* with the teeth 60a so as to permit a reverse or unwinding movement of the shaft 59 and of the

wheels

60 and 58 under the action irai-ward position.

of the spring i9.` The rod 94: is also formed with a forwardly and laterally projecting arm 9G whose forward end is adapted to engage beneath the pawl when the breech block has been shifted to its rearward position, thus leaving the pawl free from the teeth 60a.- The rear end of the'breech'block is formed with the perforation 97 which registers with the upper end of therod- 94eV when the breech hlokis in its rearmost position and thus when the breech block shifts to its rearmost position under the discharge of a. cartridge, and the forward end of the lever 91 has been depressed lby the engagenient of the finger 92 with the lug 64, the upper end of the rod 91 which. constitutes a bolt' will be shiftedinto this perforation .9T and lock the breech block in its h): .engagement with the lug G4. the loading door 9S which is disposed in the side of the magazine is automatically opened .so as to permit the introduction of new cartridges. This door is actuated b v the following mechanism: The door 9S is mounted upona rock shaft 99 having a crank arm l100. Pivotally caamected tothe forward end of the lever 91 is a link 101. the lower end of which is bent to'an acute angle. as at 102. and pi'voted at 1.03 to. the crank arm 100. lVhen the forward end of the lever 91 is depressed, the arm 100 will be depressed and .the loading door will be fully opened. Then the loading door is full;7 opened, the crank arm will indre past its center. andthe door will be held open with the extension 102 of the crank arm projecting outward.v

In order that the loading door 98 ma) be opened without the necessity of waiting for the last cartridge to be -ire d, 1 provide the llt the same time that the forward end of the lever 91 is depressed metaal-ism illustrated in rig. 7, this methanisin also lockingA the forward end of fthe lever- 91 yfrom any accidentalA depression.

Upon. a shaft 105 is mounted an erin-.106

having spaced laterally extending 107 and 108. The finger l'extend's over the top of the arrnl92, while the 'linger' l108;

extends beneath the arm 92.' The linger 107 carries y a knob 109 which 'projects' 'out through an opening in the receiver in convenient'position to be manipulated by s the thumb of the operator. It will thus.- be seen that upon shifting the knob 109 -inone direction, the forward end of thelever 91 will be' depressed, thus. causing a partial opening of the door 98, after which the door may fully lifted by hand. Usually the forward.

end of lever 9'1 is held raised by spring 110. Arm 106 is also held in position to urge the lever 91'upward by a spring 111. The lug 64 is angular to provide a shoulder 64 and a shoulder 64b. `Upon a discharge of the last cartridge from the magazine, shoulder '64* strikes against finger 107 of arm 106, shifting arm 106 forward and compressingspring 111 until finger 108 is moved from beneatharm 92. At this point, shoulder 64 clears finger 107 and shoulder' 64b engages` with arm 92, depressing the front end of lever 91. The moment shoulder 64b has fully depressed the forward end of lever 91,

pawls

65 and 67 swing clear of teeth 60El and

wheels

58 and 60 are urged back to normal position, withdrawing lug 64 from arm 9.2. The forward end of lever 91 is held depressed because the angular terminal end 102. of llink 101 is past its dead center, thus spring 110 cannot push lever 91 up. The

upward. extension 92h on. arm- 92' prevents linger 108 from catching over end of arm 92 and so making it impossible to close the door 98. Door v98 may be snapped shut without shifting knob 109, and this will cause pawls 6.5 and 6T ,to be released by level' 91, shifting it to its normal position. Lever 91 will again be caught and heldby -finger of the arm 106 rearward and thus to carry.

the arm4 92 vertically. In this position the When the loading leo 108 on arm 1.06 -until it is again shifted for- '12s 'forward end of the lever 91 will be locked 1 fronr any. accidental depression V,until the knob 109 is deliberately shifted by thel oper# ator or until the, lug 64 contacts with the exi vtension 92h.

`underfed'ge of the finger will act to shift the YVhen' this loccurs the curved arm lO6=forward against the force of the -spring'111. Y

T-n case, the gun niisses fire, l provide means fory manually71 retracting fthe breech block and breech bolt to vtheir firing positionl and cooking-the hammer. Thismanuallyv actuatable meansconsists of a rod 112 illus trated in Figs. 10 and 11 having its forward end bent to form a hookl 1131. The rear end ofthis rod passes through the rear end of the receiver and carries upon'it a' collar 114 through which a pin 115 loosely passes. @ne

vend lof this pin is provided with Aa knob 116 while the other end is provided with a head' 117. Between the collar 114 and the head 117 is-disposed a spring 118 which forces the pin downward in the collar-114 so that the .knob 116 bears aga-inst the'collar in theposition shown inFigs. 2 and 11. This pin with its spring vpasses through openings 119 formed .in a prolongation 120 of the rear end of the receiver. The rod 112 is many 'sided' A and .slides through an arm 121 to which a spring. 122 is connected, this spring yieldingly resisting any rotative movement of the rod 112'. The breechblock is formed with'. an opening 123 in which the forward *end 113 of the rod 112r is adapted to engage.

Byfthis means a rotation of the ro'd 112 will initially cause a rotation of the breech block 'suiiicient lto release the. lugs 21 .from their engagement with the lugs 22 and' then a rearward movement of the rod 112 will draw the breech'block rearward and cock the hammer. "When the hammer has been cocked, the rod V112 is released therefrom permitting the breechblock to return lto its initial position'and permitting theg'un to.be againv vrfired.` Normally of course the spring holds the pin 115 in the extension 120 of the .receiver and in order to .cock the piece it is necessary to pull out this pin 115 against the force of the spring until ithas cleared., Vthe extension 120, whereupon tie rod 112 'as before described may be rotated and vretracted.

The general operation of my invention isi Vas follows:l When a cartridge explodes in the cartridge chamber, the recoildrives the breech' bolt back, compressing vthe recoil spring 15. A s the' breech bolt is driven back, the wide heavy threads' on the breechv bolt engage the similar threads on the .in-f

side of the forward part of the .breech block 9. The pitch of these threads is relatively slowsov that the ,force of the explosion will be just strong enough toforce the breech bolt back. Ars the breech bolt goes back, its threads cause,fthe cylinder or. breech block 9 to vturn one-eighth turn to the left and v thisbrings vthe lugs on the front end of the breech block in line with the paces between the lugs 22 on 4thevinside 'of the.A receiver. VVhen`=.\these lugs on the breech block are clear of the projections 22, the whole'breech block is free to move to the rear end of the' receiver.- As the breech block goes back it compressie the. two recoil springs'- 25', andA when th Abreech block is about one inch from the rear of the receiver, it is `stopped by the wings 23 arriving at the ends the grooves 24.- The two recoil springs then immediately pushv the breech block back in its place-in the front of the receiver unless this breech block `is held from such movement by the llocking. bolt 94. When the breech block reaches its-.\place at the front end of the receiver the pressure of the two recoil springs 25 and of the inner recoil spring 15 lforces the breech-bolt forward relative to .the breech block `and as it goes forward the threads 13 turn the breech block one-eighthf'turn to the right. thus again locking the breech block in vits closed position. At thetime that the breech block is moving towardthe'rear end of the receiver it accomplishes three things. It operates the cartridge lifting mechanism as previ-l ously explained@ operates the ejector, 'and it cocks the hammer. The cartridge lifting mechanism. is actuated sufficiently to lift the top cartridge in the magazine in line with Athe breechy bolt land the chamberA or barrel where it is held by the ejector lever 73 and to 'be fired. The kautomatic action heretofore described is repeated each time that the trigger is pulled, discharging the piece until the magazine is empty when Athe breech bolt is held open after the last shot is red lby means of the. locking bolt 94. as previously explained. breech block engages with one ofthe teeth ,60a of the elevating wheel-60, thehead 19 strikes against the ejector lever 7 swinging it toward the. rear end of the receiver. This causes the operation of the ejector `in the manner heretofore explained. As the ejector is placed slightly to the left of the middle lof the top ofthe receiver, the. stroke of the arm' 74 of the ejector knocks the shell Jiist beforethe pawl 65 onthe to tlie'right side of the receiverand down and out through the ej ecting passageway 7, The inner magazine lid 72 prevents the 'empty cartridge from falling into the magazine and also prevents the cartridges rn the magazire from falling out when the. rifle 1s turned `upside down. As long-as the breech iso is at the rear end of the receiver, the ejector nger 74 is held down at right angles to the top of the receiver but as its lower end 1s a t-riiie to the right of the middle planeof the receiver, there is room for' the lnext cartridge from the magazine to come of the receiver, it shoves the hammer 2T' back until. the point on the front end ot the hammer is shifted out ot the path of movement ofthe breech block. It is then pushed back far enough so .that the tooth 31 can be engagedb),v the Sear l1. As the trigger is likelyv to be held rearward at this time owing to the operator not having had time to release it, the Vfront end of the sear 4&1 is depressed so that it cannot hold the hammer but'the rear end ofthe hammer sear is raised and catches behind the tooth 31 if the trigger has not been released. if this state of affairs occurs, then as soon as the trigger isI released therear end of the sear is drawn'down from in front of the tooth of thecollar 30 and the hammer is pushed forward b v the spring '28. As the front end of the sear 41 is elevated, however. it will Aengage the tooth 31. The resultis the same, therefore. whether the trigger `be drawn back at the. time that the hammer is cocked or whether the trigger has been released. As before explained1 when the last cartridge inthe rifle is tired. the elevating wheel is released and the spring 19 acts to return the Imagazine follower to its initial position. The engagement of 'the lug 6l with the finger-92 lifts the rear end of the lid opening lever 9.1. and this movement of the lever 91 accomplishes tour things at the same time. First it Icauses the lid of the magazine to open wide. Tle link 101 is curved so that with the help of the spring 101EL (see Fig. 7), the lower end of the link 101 will be lthrown downward andthenoutside ot the receiver1 when the lid is fullv open so that the lid 98 has to be partly closed bv' hand before. the spring 110 can push the lmer on an empt)v receiver and '112 in a manner heretofore described.

teeth a on the elevating Wheel 60. Fourth, .the proJection 95 releases the pawl 67 from its engagement with the teeth 60 so as to leave the wheels 5S andfGO free to be turned backward to the original posit-ion by means ot' spring i9. l`

lt will be noted that this construction pre1 vents the operator trom snalgipin'gthe hamprevents losing an)` time bj.' opening the magazine breech bolt and lid by hand. The magazine lid being open and the magazine follower being in its lower position, the magazine is read)v to be refilled with cartridges. vhen the magazine is filled. another cartridge must be laid on t'op of the others and when the lid is closed it is pressed down between the other cartridges and the ton cartridge'I in the magazine moves upward swinging the` magazine lid T). open and in line with breech bolt and tiring chamber. lf a cartridge were not laid on top and pressed between the others and so push the top cartridge up in line with the firing chamber` the breech bolt would close behind an emptychamber and it would be necessary to load the cartridge into the chamber by operating the rod 112 as previousljvv explained. vWhen the magazine door 9S is closed bv hand, the bolt. 91 is retracted. thus permitting the breech block to return to its original position. whereupon the arm is again ready to be fired. Then the lid 98 closed and thelid engaging lever 91h; shifted to its normal position. the lid opening latch formed by the members 106 and 108 catches the lever again and the lever-cannot again be pushed down or the lid opened unless the lid opening catch above referred to is again pushed back either b v the knob 109 or bv the action ot' the lug 6l. it a cartridge misses tire, r it' the breech bolt is closed onl an emptvv chamber. or it' t'or any reason it is' necessary or desirable to open the breech block b v hand. :t may be opened b v operating the rod It will be noted that. when the pin 115 is set in the pert'oraioiis 119. the rod 112 will be so turned that the angular extrcmi't \Y 113 will be out ot 'the wav' ot the moving parts ot the breech block. The moment that the breech block commencesy to turn to the -let'tto unlock las 'ineviousl llc-scribed. the'automatic sr .Q4 commences to push the autiii i plunger oirofl upward ffhich car ythe rod Si to be pushed rearward into position beneath thetrgsrer arm -l-. lt the trigger is held back italic moment that the breecL bla-ek 'unlocks iae wd .QT can not get armer the tri sa't'etv arm. but the moment the trigger lsed 'the rod S3 is pushed ..ipward bv the spring Sl and the trigger isautouiaticallv ioctllied a gainst being pulled back. l thus provide two entirelv .parate safetjv rele.

.of chain.

catches, one the bar ,-787 and allied yparts be. ingV automatic in its "action and the other the 'cam 90 which is manually operated.

The flexible connection may vbelmade of any suitable material but preferably is'made In order' to indicate the number of cartridges in the magazine, ythe chain might bemadeof links Vof various colored metals. Thus some of' the links vmay be made,` of brass, someA ofi-iron and some of nickel so that the operator' could tell how many cartridges were left in the magazine byv looking tlirou'ghan opening 3a inthe bottom of the receiver. As long as, for ii i. stance, the brass links would be in lView, he would know that themagazine was full vor nearlyso, but when the nickel links rcame into view he would know that the magazine was nearly empty. Instead of having the links of different colored metals, however,

numbers corresponding withv the number of cartridges in the magazine might lbe placed on the chain or flexible connection 50 at the proper positions,the vfirst number being 8 when there areseveii cartridges in the magazine and one in the chamber, and soon down to. l indicating the last cartridge.

'Tliesenumbers could ,be seen through the.

opening 3a.y Preferably, however, the indieating numerals'are placed upon the wheel l5S as previously stated.

In orderV to prevent small caliber .car-

tridges from getting into the grooves or spaces between the lugs andout of linev the hand safet)7 device 90 is placed near the right hand edge. of the underside of 4the receiver so that there will be no danger of accidentall37 pulling the trigger vwhile operating this safety latch. A

lll aving thus described niv invention, what Tclairn is:

1. In a iii-carin. a vertically' disposed magazine. a verticallyv movable vfollower therein, a flexible coiii'iection engaging .the follower, a rotatable member on which the flexible connection is \vou,iid,'aiid means for rotatablv shifting said member a predetermined distance upon each discharge of the firearm to therebf.v cause a discharge of cartridges from the magazine.

- In a firearm, a vertically. disposed inagaziine, a"verticall v movable follower therein, a flexible connection extending for a portion of its lei'igth up the ,side of said magazine, rotatable members upon which 'the oppositeends of the flexible connection are wound, mea'ns 'yielding'ly resistingI the side of the magazine a predetermine ldistance upon each discharge of the firearm Ato thereby/cause an intermittent 'discharge of cartridges froinfthe magazine.

3. In ai'irearin, a magazine, a movable 'followei-"therein, .a flexible connection .at-

tached to said follower, means for winding up said flexible connection to cause the Afollower to-travel vthrough the magazine, and means actuated upon a discharge ofthe'irearm for actuating said winding means.

4. In aA firearm, a magazine, a follower disposed therein, a flexible' connection operatively connected tothe follower, means for winding up one end of said flexible connection to cause the follower to travel in one direction through the magazine. and means resiliently resisting said. movement of the flexible connection.

5. In a firearm, a magazine, a follower disposed therein, aV flexible connection operatively connected tothe follower, means for4 winding up one end of saidv flexible con-` nection to cause'the follower to travel iii one direction through the magazine, and resilient means for retracting the flexible connection after the last cartridge has been fired.

GfIn a firearm, a magazine, a followerv therein. a flexible connection connected to said follower. a coil spring operativelyY connected to one end of the flexible connection and 'acting to retract the latter and resist its movement in a feeding direction, a shiftable member. operativelv connected to the other end of the flexible connection and adapted to shift itin a feeding direction, and means actuated upon a discharge of the firearm for shifting said member a predeterniined distance.

7. In a firearm, a magazine. a follower therein, a flexible connection operativelyengaged with said follower, a ietracting spring operativel)Y connected to one end of the ilexible connection and resisting its movement in one direction, a winding member operatively' connected t-o the other end of the flexible ioo iio

connection, and means for rotating said winding member for a predetermined distance upon each discharge of the firearm.

S, lii a firearm. :t niaga/.iiie having one wall thereof slotted. a follower. a flexible connection extending along said slotted wall and operatively roiinecteil through the slot to said i'foilovfer. incansi'or iiinding up said .ile connection to cause a retraction of the follower, and means automatically :ictu- Macnee ated upon each discharge of the firearm for winding up said flexible connection to cause it to travel in a feeding direction.

la ln an automatic firearm, a magazine having a rear wall, a flexible connection traveling parallel to said rear wall, a follower in' the magazine connected with said flexible connection and traveling therewith, a winding wheel over which said flexible connection passes, and means actuated uponeach discharge of the firearm for rotating said winding wheel a predetermined distance.

l0. In a firearm, a magazine having a rear wall and a bottom wall, a flexible connection traveling parallel to the bottom wall and to the rear wall, resilient means connected to the forward end of the flexible connection for retracting it, a winding wheel connected to the upper end of the flexible connection, a follower in the magazine operatively connected tothe flexible connection t0 move therewith, andmeans actuated upon a discharge of the firearm for shifting said winding wheel a predetermined angular distance.

1l. ln a firearm, a magazine, a follower therein, a flexible connection passing beneath the magazine and then extending upward parallel to the rear wall thereof` a coil spring operatively connected to the forward end of said connection, a wheel disposed rearward of the magazine and to which the upper end of the said flexible connection is attached, and means actuated upon a discharge of the firearm for rotating said wheel 4a predetermined distance.

1Q. In a firearm, a magazine, 'means for elevating cartridges'disposed in said magazine and including 'a flexible element, a rotatable member operatively connected to said flexible element and whereupon the flexible element may be wound, a member driven rearward by the explosion of a cartridge. and a pawl carried by said member and operativeljfY engaging said rotatable member to shift ita predetermined angular distance upon each discharge of the firearm.

13. ln a firearm, a magazine, a follower,

a flexible element operatively connected to the follower, a windingwheel. over which the flexible element passes, a toothed wheel operativel)T connected to the winding wheel, a member disposed in the breech of the firearm and rearwardlyT movable upon' a discharge thereof,'and a pawl depending from said member and adapted to engage the teeth of said wheel to shift the winding wheel through a 'predetermined angular distance upon each discharge of the firearm..

1l. In a rearm, a barrel, a receiver, a`

magazine, a follower disposed in the magazine. a rotatable member mounted in the receiver, a flexible connection wound on said rotatable member and operatively connected to the follower to elevate the latter upon an actuation of the rotatable member, a toothed wheel connected to said member, a breech block mounted in the receiver and rearwardly movable by the discharge of the cartridge, and a pawll carried upon said breech block and adapted to engage said wneel to therebi...v rotate the rotatable member through a. predetermined distance upon each discharge of the firearm.

'15. ln a firearm, a receiver, a barrel, a breech block, a firing nin operatively mounted in the breech block, a spring actuated hammer, said hammer comprising a straight rod downwardly and rearwardly inclined and adapted when projected to engage said firing pin, a spring urging the hammer into a projected position, said firing pin having a head formed with a downwardlv and forwardlv beveled face', said head beingengaged by the hammer in its proiected posi tion, said hammer being engaged by the beveled face of said head upon a rearward movement of the'breech block and being thereby shifted out of the path of movement of said block, and trigger actuated means normally engaging the hammer upon its retraction.

1S. ln a iirearm, a receiver` a barrel.; a rotatable and rearwardly suhiftable breech block inthe receivera springresisting the rearward movement of the breech block. a breech bolt mounted in the breech block for reciprocating movement but prevented from rotation, a springresist-ing the rearward movei'nent of the breech bolt, means for locking the 'breech block in the receiver against rearward movement. said means being unlocked by an initial rotation of the breech block, and enacting means oii the breech bolt and block whereby an initial rearward movement of the `breech bolt will. cause a rotation of the breech block to an` unlocking position to then permit the breech block to move rearward to open the breech.

1T. 1n a firearm, a receiver, a barrel, a breech block mounted in the receiver` for rotation and 'longitudinal movement, means yieldingly resisting the rearward movement of the breech block, a breech bolt mounted in the breech block for reciprocating movement, a spring normalljv projecting the breech bolt into the chamber bevond the breech block. means interlocking the breech block with the receiver when the breech is closed, means for preventing a rotary movement of the breech bolt but permitting its rearward movement independent of the breech block and against 4the force of said spi-ing. and coacting means on the breech bolt and breech block whereby an initial rearward movement of the bolt will act to turn the breech block through a predetermined angular distance to tliercbvv unlock the breech block and permit its rearward movement to open the breech.

18. In a irearm,a receiver', a barrel, a breech block mounted in the receiver and having radiating lugs, said receiver also having coacting radiating lugs. adapted to ,interlock withl the lugs of the breech block when thelatter is in its closed position, av

breech bolt mounted Ain the breech block, means normally projecting thel` breechbolt beyond rthe breech block, 'coacting screw threads formed upon the interior of the breech block and the extension ofthe breech bolt, and means permitting a rearward movement of the breech bolt but pi'eventing a rotation thereof whereby'to'cause a rotationalv movement ofthe breech bloclg through a predetermined angular distance upon an initial rearward movement of the 'breech bolt to thereby unlock the breech block and to cause a predetermined rotation of thebreech block in the oppositedirection upon a forward movement of the breech bolt.

19. In a firearm, a receiver, a barrel, said receiver having inwardly directed spaced lugs at its forward end, a hollow breech block mounted within the receiver and. having outwardly projecting spaced lugs coacting with the lugs on the receiver to lock the breech lblock inits closed position but permitting rearward movement of the breech block after the breech block has been rotated a predetermined distance, a breech bolt mounted within the breech block and slidable therethrough, a spring holding said breech bolt projected, means on the breech bolt for permitting its rearward movement relative to the block but preventing rotation movement thereof, means yieldinglyurging the breech bolt and block to. their forward positions in thereceiver, a firing 'pin disposed within the breech bolt, coacting means on the breech bolt and breech block' "mer and including a trigger and trigger plate, and a trigger locking member shiftable into position between the trigger plate and trigger to prevent rearward movement of the latter upon the initial rearward movement of the breech lock.

21. In a iirearii, a receiver, a breech block rearwardly movable tlrrein, a hammer, a trigger coperating with the han'inier and including a forward extension, a trigger plate upon which the trigger 'is mounted, a

reciprocatable locking rod shiftable intoengagement between the extension of the trigi tively connected to said rod to shift it, said' member being held from shifting movement in one direction by the presence' of the Y breech block in its forward position.l

22. In a firearm, arf zeiver, a rotatably movable breech block, a hammer, a trigger operatively connected thereto and having a forward extension, a trigger plate upon which the trigger is mounted, a vertically movable -rod disposed in the forward end 'of the receiver, a'spring urging said rod upward, a bell .crank lever connected to the lower endfof the rod, -a locking rod connected to the other end of the bell crank lever and extending rearward to a point adjacent the extremity. of said 'trigger extension, and means carried by saidbreech .block for normally holding the first-named rod depressed when the breech block is in locked position but permitting theV upward movement of said rod when the breech block is4 initially rotated to thereby `cause the projection of the locking rod between the trigger extension and the trigger plate.A I

23. In a firearm, a receiver having a chamber, the forward wall of said chamber having a breech block opening, said wall being provided with inwardly radiating spaced lugs, a breech block rotatably mounted in said opening and' havingradiating spaced lugs coacting with the lugs on the wall of the receiver to prevent a rearward movementof the breech block until said breech block has been rotated a predetermined distance, means for causing a rotation of said breech block and the rearward lmovement of the breech block upon the explosion of a cartridge, a hammerl` a trigger coacting tiierewith,l a locking member shiftable vinto. and out ofA position to lock the trigger from actu-ation, and a spring-actuated rod disposed in the forward end of the receiver and engaging with one of said radiating lugsI on the breech block, said lug preventing an upward movement of the rod 'under the action of thc spring, said member being operatively connected to said locking, rod to causef'a 'projection of the locking rod into engagement with 'the trigger upon a forv-:ard movement of the first-named rod when released by the retation of the breech block.

g2-l. ,ln a firearii'i, a receiver, a barrel, a breech block mounted in the receiver for rearward movement upon the explosion of :i cartridge, a breech bolt mounted in the breech block and normally projecting beyond the same but'shiftable through the breech block, resilient cartritge engaging members mozznted upon the forward extremitjvv of the breech bolt, and eject-ing devices lil() actuated uponthe' rearward movement of the breech block to engage the empty shell v gripping members.

and detach it' from said 25.1n a firearm, a receiver having downwardlyexten'ding side walls, an intermediate partition in said receiver extending parallel toV said side walls and defining on one side a magazine chamber, and on the. vother side an e]ecting chamber, a rearwardly ceiver above said chambers, a 'spring-actuated gate mounted upon said median'wall and normally extending upward and laterally over the magazine chamber',"and ejecting devices actuated by a rearward movement of the breech block to push the empty cartridge in the breechl into the ejecting chamber.

27. In a.- firearm, a receiver having downwardly extending side walls and a median Ywall dividing the lower portion of the receiver into a magazine chamber and an ejecting chamber, the lower end of said'4 ejecting chamber being open, and means actuated -upon a discharge ofthe firearm for ejecting the empty cartridge into said ej ecting chamber.

28. In a firearm, a receiver having a perforated rearward extension, a breech block movable rearward in said receiver upon the explosionof a cartridge, a rod shiftable int'o engagement l.with said breech blockand longitudinally movable to retract'the breech block, a pin movably' mounted` upon the rear end of said rod and formingahand'lev for tliejsame, and means urging said pin throrgh the perforation of the receiver to thereby lock it to the said receiver.

29. In a firearm, a receiver, a breech block normally locked from rearward movement but initially rotatable to unlock it from the receiver, said breech block being then movable rearward in said receiver, and means for manually retractingsaidbreech vblock including'a rotatable-rod having a finger at its forward end adaptedwhen thel 'rod is rotated, to engage said breech block and rotate it to an llnlockedposition, said rod being rearwardly' movable to retract -the breechblock after it is unlocked.

'30.v In a firearm, a receiver, abreech' block therein rotatably and longitudinally movabiein/ iiei'ecfei Tel to' rire ffhevbreecb; 'a

longitudinally extending Qd mounted in the :said breech block to receiver and having a bent finger at one end adapted, when the rod is rot-ated, to engage initiallyy rotate it to permit a rearward movement of the breech block and adapted to lbe retracted to retract the breech block, a collar mounted on the `end of the rod, Ia pin passing through the collar, alspringturging lsaid pin in one direction through said collar,'and an eXtension. on the receiver having perforation's through which said pin normally passes to thereby lock the pinfrom rotation or longitudinal movement.

31. In a rearm, a spring-actuated hammer movable in a straight line, a triggei,'a

pivotally mounted sear having teeth at both ends, a member on the hammer adapted tov be engaged by one or the other of the teeth,

aild an operative connection between the trigger `and said sear.

3Q. In a firearm, a hammer, a trigger, and

a hammer catch adapted to engage and'hold the hammer in a retracted position whether the trigger is pushed forward or drawn to its i'earmost position.

33. In a firearm,- a hammer, a trigger, a

sear pivoted at its middle andhaving retaining teeth. at each end projecting toward the hammer,` an operative connection'between the trigger and the sear whereby to oscillate the latter upon a movement of the trigger in either direction, and a member on the hammer adapted to be engaged by one or the other of the teeth on the sear. v 34. In a firearm, a receiver, a breech block mounted in the receiver and rearwardly movable therein upon the explosion of a cartridge, a downwardly and rearwardly ex- `tending straight hammer, a spring urging the forward end of the hammer against thev rear end of the breech block, said hammerbeing movable to a cocked position by the 'rearward movement ofthe breech block, a' pivoted trigger, a pivotally mounted sear having a tooth at eachlend and operatively connected to the. trigger, anda member on the hammer adapted to be engaged by said `too-th to thereby hold thehainmer retracted.

'35, Ina firearm, a receiver, a magazine form-ingeJ part'thereof, a follower in the' magazine, a flexible connection connected to said follower, means for shifting saidl flexible connection in one directionto cause the iis` elevation of the follower upon each eXplosion of a cartridge, and means for automatically causing a retraction of; said flexible connection when the last cartridge in the 'magazine has been exploded.

36. Ina firearn'i, a receiver, a magazine forming a part thereof, a flexible connection,

spring-actuated winding means disposed at one end ofvsaid'fle'xiblev connection, w'inuing means disposed at theother end ofsaid flexible connection and .actuated to wind up said flexible connection thereon Yupon the ex'' plosion of a cartridge, avfollowerain: theV ing, a follon'f'er in said magazine,` means actuated upon eacn' discharge of the irearmx for causing an upwardv movementof the follower through va v)Laredete'rmi'ned distance,

land lmeans Vactuated upon the.dischargey of the last cartridge inv said magazine for opening the magazine door,

38. In a lirearni,y ay receiver includingv a magazine havingadoon opening, a door'. normally closing said opening, a breech block in the receiierzmo'v'able rearward 'upon tbe explosion of a'- cartridge, means actuatedl lanon the explosion fra. Cartridge fof "feed" ing a new cartridge ,from `thefinagazine into position before the breech-block, land means actuated bythe explosionv of the last'lcar tridge from the magazine, for opening saidV doorfandlocliing tlie'bjreechi block'in a retracted position.

` 39. In la firearm, '.afreceiverjncluding ay magazine, a follow'e'rin the magazine, a

` wardly therein upon'the explosion of a lcarbreechv block in thereceiver'moVable'reartridge, a eXible connection operatiVelyl connected tothe follower, a spring winding means operatively ,connected tothe forward-- end of" the flexible connection, a' winding"k wheel operatively 4connectedto the rea-fend' ofthe fieXible connection and/disposed' rearward of the lupper endfof the"inagazine,. means', actuated upon rearward.. movementE "of the 'breech block jforfrotating'the'wind ijng wheel ay predetermined distance to'cause theej-ection of ay cartridge'in'tothe breecli',

locking means normally preventing uiiwi'ndy ing movement off said windingv v wheel," 'and means actuated, upon-"the explosion ofthe last cartridge from they magazine for 'releasingsaid `locl1ng"means to :permit the spring-actuated winding mean? to *retract the iieX'ible connection and thexfollower", s aid means simultaneously lociingf tlre vbreech b'l'o'cl; in a retracted position.

` 40; In a i'rearm, a'receiver, a magazine, 'a

breecl'i block movable rearwardly `upon the ex'plosion'of'a cartridge,;a follower! in the magazine, 'means for'jc'fausin'g 4a step byst ep' upward nio'ementof'tlieffollonr upon the' explosion of; eacli cartridge and tlie* corre- Spending rearward'mo'yement'of the breeclr'- block, andy means'for returning the follower# magazine door.-

inname to `its initialposition upon the vexplosion of the last cartridge from the magazine.

41,1n afre rm, a receiver; a magazine, a breech; 1gblock ovablerearwardly' upon the enplosonof `a; cartridge, a follower in the magazine, means for causing a step by step upward movement ofthe follower upon the.

explosionv frfeach` cartridge and the correspondin'g' rearward movementof the breech block, means 'for .returning the follower` to its initial position, uponv the explosion of the last cartridge from themagazinefa loading doorto-the magazine, and means for 'causing an opening'rnovement of the'loading'do'or upon the n'ring of said last cartridge from v the.` magazine;

42.^1n,a. firearm, a jreceirer, Va -magazin-e, af breech block movable yrearwardly upon the yexplosion o f the cartridge, aloading 'door to -the magazine, and means for, lock.

ing thelbreecli blockin aretracted position'. afterthe explosion'of a cartridge until 'said door is closed.v y 'i j Ina firearm, a receiver, a' magazine, a breech blockV movable rearwardly upon ltine eiiplosion of the cartridge, means for feeding cartridges from themagazine upon each actuation of the nrearm, 'a maga-zine door,

-m'eans' for causingthe magazine doorlto automatically-open upon the explosion of thelastcaijtridge fromI .the magazine, and

meansforlockingthe breech block'in a re# tracted Aposition caused by-the discharge of said 'lastcartridge and holding insuch lockedfvposition until the .closing ofthe 4r-111 a firearm, a receiv'er,a magazine,

e. breech-'block ymovable rearward-ly upon the explosion 'of'.a c'artridge,-a,follower in the' magazine, means 4for vcausing-av step by step f upward, movement ofthe followerupon the eiplosion 'of 'each cartridge l'and ay .correspondin'g" rearward movement of the breech block, means--for automatically',returning tlie; foljlower'toits initial 'position .upon the explosion of the last `cartr1d ;e"from'tlie magazine, a loading/door to tbe inafgnzine,4v means for causing an opening movement" of the loading door upon the ring of said last Cartridge froniwtlief'inagazine and for simultaneously engaging the breech blockto"h'old' it in itsaetracted position until' the loading dooris closed. f

"lfn' a' firearm, a recei'wer, a magazine,

,a"bree`cli blockl movablev rearwardly upon the explosion offa cartridge, a follower in 'tlieniaga'zine alwindingfwheel, av flexible connection engaging, the' follower and' passeI ingorer saidwinding?wheel, means 'on the breech blockopferatixielv engaging the winding uf-lieelito' rotatev it a "predetermined distance.upon` tlie f' rearwardy rmovement the .biee `cl1 block, means resiliently resisting necti'on, means for locking the winding; wheel from reversel movement but p'errr'i'it ting thewinding movement thereof,'and

means actuated by the firing of the last cartridge from the magazine for releasing the holdingmeans engaging said Winding wheel-to thereby permit the return of the winding wheel to itsoriginal position'and for automatically locking the breech block inits retracted position.

46. In a firearm, a receiver, a magazine,

a breech block movable vrearwardlyupon'v the explosion of a cartridge, a downwardly and rearwardly extending "p awl `on the engaging said follower and extending up the rear wall ofthe magazine, al winding 'wheel connected to the rear end ofthe flexible connection, means adapted to be engaged by said pawlfor causing a predetermined movement of thejwinding wheel to thereby Wind up theflexible connection, a

' pawl holding said Winding wheel front-refv l on :the breech .block tol hold it.v out of eii-l lower step 'by' step through the magazine,

verse movement under the lforce of the spring-actuated means, a magazine door,

al vertically movable member adapted to' engage the breech block whentlie latte-r is retracted tohold `it in reacted position,

-said member adapted to en, ge theholding pawl to. releaseit from its engagementvxvith the 'winding wheel and said member having a prolongation 'adapted to engage the paw-l gagement `with '.tlie Windin-gwhee1, and

means actuated 'by tlie firing. of tlie'last",

cartridge from'the mz'igazine for forcing said. member upward to lock vthe-breech block, unlock the Winding Wheel and shift .47. In a-firea'rm, a` receiver, magazine, -1 j adoor closing the lower portion o'rf the niagazine,a rearward-1y lmovable breech block, a wheel operativelyxengagedjby saidbreech f 'block `upon its rearward movement to .thereby rotate itv apredetermined degree, alever operativelycoinectedjto fthedoor, and a member mounted on the wheelqandlengagf,

. ing 'said `lever .to rotate-fthe door to ariopen Aposition afterthewheel hasnfiovedaprey I y K 'L ftion from the winding drum, and means coacting with thel Winding wheel for indicat-- l 48. In a firearm, a.v I

'a door closing` thel'ower" portion of the mag- 1 determined degree..V

receiver, a magazine,`

azine, a rearwardly movable breech block,

a wheel operatively engaged by saidbreech block upon its rearward movement to therebyrotate it-a predetermined degree, a lever,

a breech block loc'king device operatively `:.prmg-actuated lwinding means connected y c'onneded to saidlever and'movable into engagement with the breechblock when the anld'means won tbewh'eel for engaging lsaid lever to shift it after `the said" wheel moved apredetermined amount.

vhas

y 49. In a firearm, a receiver, amagazine,l aj

azine, a rearwardly mc'iv'al'ilev breech block, a wheel o'perativelyengaged by said breech block upon its rearward movement to thereby rotateI ita predetermined degree,a lever operatively connected to the door, a member -m'ountedgon the wheel andfengagingf said lever to rotate the vdoor fto'anopenposition after the wheel has moved a-predetermi'n'ed degree, and manually operated 'means for door. l

50.' Ina firearm, a' receiver,"`al magazlne,

j manually `shifting saidlever to -open .the

operatively' connected to the door, a member mounted on the'wheel and engaging said lever to rotate tl'iejdoor to an open positionA after the wheel has moved a. predetermined degree, and manuallyoperated means for lockingthe leverf-rom movementor shift- :ing the lever to operi the door. l I

51. Inl a firearm,V avertically disposed .door closing the'. lower portion of the-magmagazine, a verticallymovable followerl therein, a flexible'connection operatively en! gaged with said-follower', said connection extending for a portion of its length par allel to thefside .W'all ofthe magazine, means for giving saidA HeXibleconnection-a step by step Vmovement to thereby'elevate the foland` means foi-indicating vthe degree to which said flexiblev connection has beeny elevated totliere'by indicate the number of cartridges 'in tliemagazine.

52, In 'a firearm, 'a vertically disposed"y magazine, a. follower movable therein to ward the i'ipperend of the magazine, a flex-4 ible/connection attached' to 'said follower, y

aspring actuated winding drum over whichv one i end of the flexible' connection `passes, awinding wheel' overvvhicli the other end of vthe flexible connection passes,. means forshifting the'wiiiding lwheel a predetermined distance. upon'the'explosion of each cartrid-g'e to thereby unwi'ndthe flexible coniiec-l ingthe position 'of the follower in' th ma gazine'. V

p 58- In a firearm, a receiver, a magazine forming a part of the receiver,'a follower' therein, a flexible connection having a ver tical stretch connected to said follower, a

to the lower end of said connection, an au-o- 14 ,l y' y ,j V 1,126,726., Y. A

a breech block ,(i-sloseelfiilfheieceiirer :ind i ',said ysidefopenilig anni indicating 10` movable renrvs'ardupon vthe explosion, of' a thefnumber,ofeartridges yin'the magazine cartridge and. adapted -to operativelyengage :1t/,any time. n u v y l'said Winding Wheel v.to rotate it4 a predeter- :In testimony whereof I affix my signature mined degree upon each. reqrwardn'ovein presence of;.two Witnesses. ment of the breech block, the receiver being .FREDERICK A. DIESTELKAM'P;

provided with aside opening and-fthe ad- Y vVitnesses:l i

' joining face yof,4 they windinglwheel Abeing C. F. TEMPLE, providedfxvlth a,.v=ev'1ee of numeralsvvislole.` MQL STURGES;