US1545045A

US1545045A - Firearm

Info

Publication number: US1545045A
Application number: US692367A
Authority: US
Inventors: William E Dute
Original assignee: HOFFMAN ARMS Co
Current assignee: HOFFMAN ARMS Co
Priority date: 1924-02-15
Filing date: 1924-02-15
Publication date: 1925-07-07
Anticipated expiration: 1942-07-07

Description

,. July 7,1925. Y 1,545,045

. IW.-E.DUTE

' FIREARM I I Filed Feb. 15 2 2 sl xe etssheet 2 wmMmp lI-Ml INVEN TOR.

Q. levels.

h the 'bqlt i oprateg1- hdnzywlngs'fattached t z and fdrmi thg rear: end Of thQibQIRSLHQWh" "to iitheg v 1 m be fleSGribed' mQfQ detail harm-mite t and safety'lock 15. 16 indicates a breech bolt sleeve of new. 'andIimp-roved form, which consists of a portion l6 yin whichthe cocking piece 13 is movable and on which the safety lock is mounted, as is the usual practice. The sleeve 16 is provided with a slot in its bottom wall of sufiicient size to receive slidably the lug 14 on cocking: piece 13. The sl'eevel6 is provided on the left side with means for mounting a pinion to engage withthe cylinder 9 ofbolt 4,"this means preferably comprisinga hollow extension 17 and a second projection18 spaced rearwardly'ltherefrom. Pinion 19, housed in hollow extension ll', is provided with an axially arranged pin 20 extending through an opening in therear wallof extension 17 and through extension 18.

A portion of the pin 20, which" normally lies between the two projections 17 and '18, may, if desiredfbe suitably squared-s0 that a lever 21 mounted thereinmay turn the pin rear of projection 5- and on the top of the 'rece1ver'3 20 and thereby actuate pinion 19. J The pinion 19 oarries,on a portion of its periphery, a series of gear teeth 22adapted to engage with corresponding gear teethor serrations 1 23 provided on the-cylindrical portion 9 of bolt 4 so that'when the lever 21' is movedthe bolt is in firing position in the receiver.

'26 indicates a spring pressed pawl carried'in bolt sleeve 16 to engage with lug 12 in 'certain positionsof the bolt 4: with re-' spect to the sleeve 16 and thereby prevent relative rotation of these parts. To release the 'p'awl26, I have provided projection 8 hereinabove described, which is so positioned that'when the bolt 4 isin firing position' in the receiver 3, the pawl 26'engages with projection '8 and is disengaged from lug 12 so thatthe bolt may be freely rotated.

When for example a Springfield rifle of the model of 1903 type is to be altered in accordance i with 'my invention, the only parts which require'changing or alteration are the receiver and bolt'parts, The receiver may be made suitable for my purpose by cutting away a portion of the ordinary projection on the left side to form projection 5. In so doing, projection 8 may be formed and the receiver suitably altered as by removal of a portion of the metal immediately to the to accommodate the breech bolt sleeve 16. I

The bolt 4: may bejemployed substantially in its entirety but it is necessary to provide sleeve 16 of the form hereinabove described. The lever in the 1903 model type of Springfield rifles, corresponding to operating lever '21 shownherein, may be removed entirely, but I prefer to sever it from 'thebolt so as to leave a lug 26 integral with lug 12 and of sufficient height and dimensions to engage with the cylindrical part 3 of the receiver and thereby enable the bolt to perform all of its normal functions and movements in the receiver traceable to the shank of the operating lever before the same is "severed. {It will ibe observed that I have provided a' bolt for a fire arm, particularly of the Springfield and Mauser bolt operated repeatingrifle types which can be operated from the left side and is therefore easier for a leftha-nded person to employ, and 'furthermore that the device by which this has been accomplished are extremely simple and can be readily applied to an existing fire arm'without extensive alterations or prohib 'itive'cost. It will further be noted-that I provided a pinion operated bolt which may be actuated from the left side of the gun. "Having thus described my invention so that those skilled in the art may be'able to practice the same, whatI desire to secure by Letters Patent is defined in 'what is claimed, it being understood, however, that various changes or alterations may be made in the; structure hereinabove described without departing from the spirit and scope of my invention.

What is claimed is: V

"1; A bolt operated fire arm comprising in combination a magazine, means to eject shells therefrom on the right side of the fire arm, a bolt receiver, a bolt rotatably mounted therein and means on the left side of the said bolt for rotating the bolt in the receiver.

2. A bolt operated fire arm comprising in shells therefrom on the right side of the fire arm, a bolt receiver, a bolt-rotatably mounted therein and means on the left side of the said bolt for rotating the bolt in the receiver, said means comprising a pinion and an operating lever.

r 3. A' bolt operated fire arm comprising in combination a magazine means to eject shells therefrom on the'right side of the fire arm, a bolt receiver, a bolt slidably and rotatably mounted therein, and means on the left side of said bolt comprising a pinion and lever pivoted to the bolt for actuating the bolt longitudinally and rotatably.

4. Abolt operated fire arm comprising in combination a magazine, means to eject shells therefromonthe right side of the fire arm, a bolt receiver, a bolt movably mount 7 ed therein,a 'pinion'housing carried'by the combination a inagazine, means to eject A 'e "therein, 1s pihijona: gboltgolkpinion i in the amusing p -;gagiiig:thebolt,mid l on of 's'zti'dholt andysecu'red hells tliefieffo nldn the :rightisld of tlieffire rm, a bqltreceiyeigi boltgmoygibly;mount ed itheitein having gear lteeth n' 7 surface, 'a pinion housingicari ied by the bolt;

'1 ing the gear teeth in the said LPlIllOfi and t ting the; pinion.-

' housing operatively the lb ojlt rojec ing rearyverdly;ffoinifthe{extension movablyniounted inithe'; receiver? and provided adj a'centto its rear end with gear:teeth extending longitudinally thereof, 1 ta breech olt sleeveh'av-ing a hollow extension on its aleftlside' a piniouhoused inlsaidl "extension I V and ope iatively engaging thebolt," said-Pill 40;"- ion having an axial recess, the said spindle -la teral extension on 'its' left side, a spi'ndle iv tudinal"; axis of [the receiver, a breech} lb'olt inovably V mounted in the receiverfend 'p'r0-' 5 vided adjacent to itsi'ear end With ge'ar teeth j extendinglongitudinally thereof; '3 "breech gbgolt sleeve having a hollowvexterision on fsion having :an "axial 'recessgl'the spindle being adaptedtoiextend into the recess'to Vement I tension am onibinatiojn ,a 7 magazine, 1-1nee)i1s gitei eject a pinion in the housing foperatively I eng'ag j i bolt sleeve and engaging the bolt. pmeans onfthe left'sideof'said 'bolt fer ia ctu-r V U f- 7 f v 1 in combination a breech bolt'receivei having" 1 .7 A bolt operated e fire ai in comprising in I" ombina-tion ;a bolt receiver, a bolt: inovably :mountedtherein, t 'pinion housing i c e i'riedhy 7 theioolt" on llllQjlBfUSld"tllefeoffit pinion in Igltudinalaxis of thsreceiver, ,a, breec and. means for actuatingthe said' pinion; 8; 'A bolt: operatedifire'afm' coinprising inl v combination, a; vb i eeel'if bolt fee"e'iveifhaying 4 V, "a lateral extensionfon its 'left jside, aspindle ind in substantial alignment with thelongiflsaid pinion having anjaitxial recess udinal axis of the l rece iverfa breech bolt fth'e 'pinicn is Totzited, Ineans forovin the v1 g breech bjoltin the recei ver," andlineans foi'; 1; flocking the bolt against rotational-niovementq comprisinga'spring pressed pa lfear-r'ied 10y 1 ]tl 1e;b1?eechbolt sl'eevennd engaging thevbolt, {fthe stiidpawl being disengaged from locking 5 l 1 g adapted'tozextendf intotherecess-torengaggementWiththe 'bolt by cOnt C l 'fl i suppo t I the: pinionuinteifnz lly when the pin ion is rotated, 11163115 for. HlOYlllg the'ibreecli P bolt. in the receiver; and" means --for "l 'oclzingr combination, a breech bolt iec'eiver haying a projecting r'eerwai dly Iifroni the extension l a'nd'in substantial talignmentwith the'longiside, a pinion housed inisa id extension I 7 operatively. engaging the. bolt, said -pinion', I its left side, 'a -pin io'n" housed in said' exten .;.l1ai i ng'an exi ztl'i ecessnthe sz tidspindlebe-i ing a'daptedto 'extend'intotlie recess to sup-:

{suppottthe pinion inte'rnjillyowhen the ping-f .ln'g't'hebreech bolt in'th 'ion' is fotgited; means'ffoi'=-moving"the hi eeeh bolt in the 'i'eceivef, comprising 2y "let er-3e?" lived i to the pinion to rotate the same end Y S e ip' ie t sub s exterior i 11. (bolt ope rated fire a rma latefelextension onits' left side, a sp i ndle" PKOJBQtlIlg rearw'a dly fro n the -extension" and, in substantial alignment with; ei lonlmoyaloly niounted inf thefjreeeiyer; and pica: idedndzijcent to fits reai'f;end- Jwith teeth extending longitudinally, 'thereo breech 'boltsleeYehaVinga, hollow extensie on its left side iietipinion housed-in tension andiope'rativ'ely engagi g spindle-being"ddaptedto extendfin V cess to support the "pinionfinternally when W110i itspositions with the said ieCeiv'erf; j 1 1 A bolt zopei atedffire arms comprising e in combination is breech. bolt receiver haymg I a lateral extensioi onits left side,a spindleprojecting reifwardly fromqtheextension and insubstantial alignment with theflon gitudinal-axis of the receiver, afgaifiguagr'dv on the said spindl L breechboltInoablyi mounted in the receiver ma p oiiided" ja'd; jacentjto its rear end with geaiflteeth ex tending longitudinally thereof, I a br echgbol ,sleevelmving a hollow extension? 011i left; 7

end

n'ie a'ns for 'movw ceiverfandineans, f

for; l'ocking'the vb01111against 'otzition al move- 25;

.A belt, :o'pel te f arm om r n Y tspindlefin thejsid pr ort' the piiiiqnf intern: 11

jection carrying a cut-out lever between the projections, and extending rearwardly ofthe rear projection, a gear guardon the rearward extension of the said spindle, a breech bolt movably mounted in the'said receiver and having gear teeth, a breech bolt fsleeve having a hollow extension on its left sidev 'the Wall of wlnchls cut away ad acent to the bolt to expose the said gear teeth on the bolt, a pinion in'the sardhollow extension engaging with the said gear teeth and 'hav- "ing a central recess to receive the end of said spindle, a lever secured tothe pinion, a spring pressed pawl in the breech bolt sleeve lockingly engaging the bolt, the said pawl being adapted to engage the said rearward top extension on the receiver in certain positions of the boltin the receiver and being thereby withdrawn from looking engagenient with the bolt.