P. MAUSEB. BEGOIL LOADING RIFLE.

Arrmouion FILED MAY 6, 1907.

Patented Apr. 20, 1909. 2 SHEETS-SHEET 1.

918360.

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P. M AUSER. BEGDIL LOADING RIFLE.

. Arrmouloii Hum MAY 6,.1907.

Patented Apr. 20, 1909. 2 SHEETS-811E133 2

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UNITED sTAT Es PATENT OFFICE. PAUL MAUSER, OF oBEENDoEF-oN-THE-NEoKAR, GERMANY.

,nEoornLoAnme ‘RIFLE.

No. 918,760. Speci?cation of LettersOI‘Patent. > Patented April 20, 1909.

Application ?led May- 6, 1907. Serial Nol 372,109.

T 0 all whom it may concern: Be it known that I, PAUL MAUsER, royal

commercial councilor, a subject of the King ‘of Wiirtemberg, Germany, and a resident of Oberndorf-on-the-Neckar, in the Kingdom of Wiirtemberg, German Empire, have in vented certain new and useful Improvements in Recoil-Loading Ri?es, of whichv the fol lowing is a full, clear, and exact description. The present invention relates’ to recoil-j

loading rifles with sliding barrels, and more especially to the arrangement of the breech and to the locking mechanism for locking the breech bolt. 7 - -

In a previous construction'of mine, for the locking means, a block similar to a rocking cradle is provided, the upper part of which rests with its face against the rear surface of

- the breech bolt, andits side arms being pro

pee

- levers or arms in the locking

vided with noses or projections which coact‘ with corresponding grooves in the walls of the frame, in order to assure the, compulsory‘ movement of the block in the unlocking vand locking direction. ' _ I In accordance with the resent invention two- separate movable locking and unlocking .levers or arms are provided‘ instead of this block, which levers are located on either side of the breech framejand being mounted in the barrel extension, are free to swing, whereby the compulsory. adjustment of the

and unlocking positions is effected by the co-action of pro

> jections ,on the arms with corresponding '35 gr

40

ooves inthe frame or in any other part rig-_ idly connected with the frame, The advan tage of the present arrangement is that these horizontally or laterally swinging levers or armssupport the breech-bolt on either side symmetrically to the lon itudinal axis of the breech and barrel, an further that by

' mounting the arms or levers laterally the whole breech system with casing can be kept

~ . lower. -

45 . In the accompanying drawings two ar rangements of locking lovers are shown con

, structed in accordance with the present in

so

'55.

vention, Figure '1 bein'gr an elevation partly in'section, Fig. 2 a lan also partly in sec tion, and Fi .. 3 a an showing a diiferent< osition of t e locking levers or arms, while ig. 4_ is a plan partly in section showing a

modi?cation. I wish it to be distinctl un- _ derstood, however, that-the exampless own by no means limit the number of ossible ar rangements, but that a number 0 variations

ipulsory swing

in detail are possible which would still be within the scope of the'invention.

In the construction shown in Fi s. 1,2 and 3, both locking levers or arms I? are one armed levers or arms, and are pivoted on the pins a in the rear ‘Wall of thebreech- barrel extension jh. The pins a are integral with the arms and project far enough into the cor‘ responding sockets‘ in the sides of the barrel, extension, to be prevented from falling out. “The compulsory guidance of the levers or arms in t e locking and unlocking'positions, is e?ected by projections c1 on the fore ends of the levers or arms, said projections engag ing in correspondingly curved recesses ‘g1 in the ‘upper w'allof the frame g. , - The action of' the above described locking

mechanism readily understood. InZ the locking position (Figs. 1 and 2), the locking levers or arms lie with their fore ends in clined inward in such a manner ‘that the fore ends of the levers or arms (which are rounded off to the radius having the centers of. the pins 0, astheir centers) act like single arm- ?aps and abut against both sides of the rear surface of thebreech-bolt 7c and thus support the breech-bolt in 'a' symmetrical manner. Upon the ‘barrel and barrel ex tension oing back, the pins or gprojections c1 of the evers or arms in the grooves 91, also slide back, the grooves beingso shaped that, when the 5barrel extension has reached its extreme ackwardvv position, the locking levers or arms will have swung out into the unlocking position, is released and is able to ass backward be tlg‘ween the parallel locking evers, as shown in

' . 3. ’ .

the construction shown in Fig. 4, the locking levers or arms 6 are not pivoted, as in the ?rst instance, at the rear end of the bar rel extension h, but near the center so that they act as ‘double armed levers. The com

of the levers or arms I)1 6?, for the purpose of locking and unlocking, is ef fected by projections c2 the levers or arms I)‘, the corresponding grooves 92 being provided for said projections - at the rear part of the wall of the frame 9.

It is obvious that the princi le of the mode of action of the breech or‘loc ' g system ef fected by the examples shown, might also be attained by using other detail arrangements; for instance the compulsory movement of the-locking levers or arms might be effected by other means than projections and curved

65

75

80

90 so that the breech-bolt \~

100

on the rear’ ends'of ‘

105

110

. could vary considerabl .'

grooves, and the sha e, construction and mode of mounting the ockin levers or arms,

t vis, however, always essential that t e arrangement be such that the breech-bolt should be ‘symmet rically supported at its rear surface by the shoulders of supporting mechanism (levers

. or arms), and that the relative'supporting ' mechanism should be automatically moved

10

15

20 - substantially the whole length-of the

in and out, whereby‘ the same should, when moved out, allow a free passage for the breech-bolt to pass backward. A What I claim as my invention, and desire

to secure by patent is‘: U. 1. In recoil loading ?re arms, the combina

tion with a frame, a movable barrel sliding on the frame and havin \an extension, and a breech bolt sliding in t e extension, of bolt locking levers pivoted in the rearward part of the barrel extension and extending) over

\ arrel extension and means for moving the said levers into the locking and unlocking posi

' tions.

25 2. In recoil loading ?re arms, the combina tion with a frame, a movable barrel sliding on the frame and havin an extension, and .a breech bolt sliding in t e extension, of bolt

1 locking levers pivoted in the rearward part

918,766

of the barrel extension and extendin sub stantially over the whole length of thelliarrel extension, said levers being provided with projections near their fore ends and- the rame having cam, slots or rooves, wherein said projections engage, the evers thus being moved like single-arm ?a s and in their look ing position abutting wit their fore ends on both sides against the rear face of the bolt.

‘ 3. In recoil loading ?re arms, the combina tion with a frame, a movable barrel sliding on the frame and havin an extension, and a breech bolt sliding in t 1e extension, of bolt locking levers pivoted in'tlre rearward part of the barrel extension and rovided with projections en aging in cam s ots or grooves

30

35

40

45 of the frame, t e barrel extension having the. ' holes for the pins of the locking levers in its rear transverse wall, and lengthwise in its side walls, cavities wherein the levers enter? when swung. laterally into the unlocked po-‘i

' sition.

In testimony whereof have hereunto set 'my hand in presence of two subscribing wit- \ nesses. . -

PAUL MAUSER. Witnesses: V

HENRY HASPER, WOLDEMAR HAUPr