Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUS1294186 A
Publication typeGrant
Publication dateFeb 11, 1919
Filing dateNov 29, 1916
Priority dateNov 29, 1916
Publication numberUS 1294186 A, US 1294186A, US-A-1294186, US1294186 A, US1294186A
InventorsFred R Stava
Original AssigneeFred R Stava
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 1294186 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

zen `of the United States, residing at UNITED sTATEs PATENT oFFIoE.



gagement of the hammer with the pin in the event the hammer is accidentally actuated or released, and to emplo a means in connection therewith operab e to shift the said means to permit firing.

An important object is to provide a gun with the means to prevent 4accidental firing and which' is opera-ble to permit firing byv engagement with the shoulder of the gunner or operator and thus operate automatically during the act of positioning the gun.

vWith the above and additional objects, such as will hereinafter appear in'detail, the invention has been embodied in Vone preferred form4 as illustrated in the accom.- panying drawings, wherein Figure 1 is a fragmentary view of a gun shown mostl in section at the stock, and provided wit my improvements,

Fig. 2 is a'view showing my improvements in top or plan view,

Fig. 3 is a cross sectional view -on the line 3-3 of Fig. l, and.

Fig. 4 is a detail perspective of the cam l comprising the guard-shifting means.

Referrino` to the drawings, wherein like reference c aracters designate like or simi-` lar parts, a gun is shown fragmentarily but merely by way of example since the specific construction is immaterial as far as m improvements are concerned. The gun s own has a suitable stock at 10 provided with the usual pivoted hammer 11 adapted to engage a 'rin pin 12 disposedas usual at the rear of the arrel 18. A guard 14 is provided for normal disposition intermediate the hammer 11 and the firing pin 12, that is the guard projects beyond the exposed end ofthe firing pin towardthe hammer, so-'that'if the hammeris accidentally released, it will engage the guard 14 but will not engage the firing pin 12 and accordingly will notfire the car- Speciication of Letters Patent.

Patented Feb. 11, 1919.

Amiiimion mea November 2911916. seri-a1 Nu. 134,145.

tridgelor charge. This guard 14 may be of any suitable construction, for instance an arm which is vertically disposed in a guide 15 of any suitable construction. If desired the guide may be dispensed with and the stocl 10 cut away to provide a substantially longitudinally disposed hollow or space at 16 within which mostiof the parts for actuating the guard 14. are disposed. A fulcrum 17 extends .transversely of the stock and has l mounted thereon a lever 18 which is pivoted by means of the pin 20 to the guard 14:. This lever is normally main-tained raised at its forward end, so that the guard 14 will be in guarding position, by means of a spring 21 which engages and surrounds a lu provided'on lever 18 and a lug 23 provided on a plug 24 screwed, as shown, into the stock 10. A lug or shoulder 18 onlever' 18 limits the rearward pivotal movement of the uard and maintains it in a vertical position.

'his guard at the forward end is contiguous to the rear Aend of barrel 13 and it extends backward beyond the exposed end of the firing pin so as to be in the p ath of movement of the hammer before striking the pin.

AIt will thus be seen that I have rovided a means which will revent` acci ental dis# charge of the cartri ge '0r load and thus the arm may be handled with absolute safety.

A suitable means is provided to shift the guard in order that the hammer 1 1 may engage the firing pin 12 at thel desired time.

Any suitable means may be employed, but l:`

preferably employ a cam 25 w ch rests on a flat wall 26 in the hollow 16. This cam has an inclined or cam wall 27 which the rear end of the lever 18 en ages so that 'as the cam is moved toward the ammer, it will tilt the lever 18, raising the rear end and lowering the front end and moving the guard 14 out of the path of movement of the hammer-11. Cam-25 may be fastened to a rod 28 disposed .in the hollow 16 and extending from push block or button 29 also mounted inhollow 16. A Lplate 30 is anchored to the stock and dispose in the hollow 16 and the rod 28 `slides therethrough havinga crank or angle 31 to abut the plate and mit the outward movement of the rod. A coil expansion spring 32 surrounds the rod 28 intermediate the plate 30 and the block 29, bearing against the same and serving to normally roj ect the push block beyond the butt end o `the stock and the crank 31into engagement .with the plate 30.A Inward movement 'of the ,pusb

-. merA automatically during positioning of the block 29 is limited by the wall 33 of the stock f at the hollow. l It is important that the push block 29 should extend beyond the butt end since it forms a 'construction whereby the guard is moved out of the path of the hamgun for firing. v In use, the gunner the stock at the butt end against the shoulder. However, during such movement, the

` push block 29 first engages the shoulder and it is moved as a result interiorly of the stock, that 'is Within .the hollow 16. As a result, the rod 28 and cam 25 are pushed toward the hammer against the tension of spring 32, raising the lever 18 at itsrear end against the tension of spring 21 and lowering the l guard 14v out of the path of movement of the hammer 11. These parts will remain in this position while the gun stock at the butt end is held against the shoulder and while they are in such position, the firing may be' effected. As soon as the gun is moved away from the shoulder, the spring 32 will force the block 29 outwardly and spring 21 will force the lever 18`and guard 14 into normal I vpositions whereby the latter is in the path of movement of the hammer.- A

Since merely the preferred embodiment of the invention has been illustrated and described, it is to be understood that changes in the details of. construction ma be resorted `to without departing from t e spirit and scope of the invention.

1. In combination with a lire-arm and the firing means thereof,a guard member toy normally render the liri means inactive, a lever to actuate the guar member, aV removable plug on Athe fire-arm, a spring on the r opposite side of the fulcrum of the lever to the guard member,and means on the plug and lever to mount said spring.

2f. In combination with a re-arm and the firing means thereof, a slidable guard member, a lever to which the guard member is oroperator manipulates the hre-arm 1n ythe usual manner, bringing.

pivoted, means to -mai'ntain the guard meniber against' dis-placement, a slidable rod,

means to tiltthe lever through movement of the rodthe fire-.armhaving a hollow space in which the rod is disposed,'a plate extending into said space, said rod .being mounted by said plate, said rod havingl a push member, a spring intermediate t e push member. and plateand bearing against one side of the plate,'and means on the other sideof the plate.

3. In combination with a fire-arm and its firin means, the .stock of the ire-arm being ollow and provided withan abutment wall in the hollow, a bearingdisposed with- Ain the hollow, aguard means to render the irin means inactive, a slidable means disposed in the hollow to actuate the guard, said slidable means having a head to engage the abutment wall, and said slidin means extending through the bearing an being provided with an abutment to engage the bearing to limit the projection of the` slidable member, land a sprin interposed between 'the said head and sai bearing.

yrod and engaging the push member and plate. v

In testimonywhereof I.a1lix my signature in presence of .two witnesses.

i FRED R. s'rAvA.


. S. F. Soo'rr, H. G.KRAMER.

the rodl to abut

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US6941692 *Jun 12, 2003Sep 13, 2005Alvern J. KrinkeFirearm safety mechanism
U.S. Classification42/70.8
Cooperative ClassificationF41A17/74