US443747A

US443747A - Albert yon derschait

Info

Publication number: US443747A
Authority: US
Publication date: 1890-12-30
Anticipated expiration: 1907-12-30

Description

(No Model.)

A. VON DERSCHAU. SAFETY LOCK POR PIRE ARMS.

INVENTOR;

WlTNESSESZ Attorney.

...mf Y

sis

UNrTED STATES PATENT Ormes.

ALBERT VON DERSCIIAU, OF VEISENBERG, GERMANY.

SAFETY-LOCK FOR FIRE-ARMS.

SPECIFICATION forming part of Letters Patent No. 443,712?, dated December 30, 1890. Application filed August 1,1890. Serial No. 360,622. (No model.) Patented in France August 16, 1888, No. 192,425; in Buglaud August 16, 1888, No. 11,851; in Italy August 23,1888,

No. 23,976; in Belgium August 23, 1888, No. 82,989; in Sweden September 10, 1888, No. 2,183; in Portugal November 6, 1888, No. 1,287; in Switzerland November 21, 1888, No. 96; in Spain December 7, 1888, No. 8,659, and in Austria-Hungary May 4,

To all wiz/0m it may concern:

Beitknown that I, ALBERT voN DERsoHAU, a subject of the Emperor of Germany, residing at ll'feisenberg, Alsace, German Empire, have invented certain Improvements in Fire- Arms, (for which patents have been granted in France, No. 192,425, dated August 16, 1888; in Great Britain, No. 11,851, dated August 1G, 1888; in Italy, No. 23,976, dated August 23, 1888; in Belgium, No. 82,989, dated August 23, 1888; in Portugal, No. 1,287, dated November G, 1888; in Switzerland, No. 99, dated November 2] 1888; in Spain, No. 8,659, dated December 7, 1888; in Austria-Hungary, No. 7,841 and No. 30,629, dated May 4, 1889, and in Sweden, No. 2,183, dated September 10, 1888,) of which the following is a specification.

My invention relates to that class of firearms and ordnance wherein a gravity-controller is employed to effect the discharge of the gun at a given angle of elevation of thc barrel when the piece is elevated or depressed by the soldier or gunner to that angle.

In my pending application, Serial No. 289,979, I show and describe an electricallyactuated gravity-controller for this purpose; and the object of mypresent invention (which embodies a division of that application) is to substitute for the said electrical device a simple mechanical device for effecting the same result., thereby dispensing with the battery and electrical apparatus mounted in the gunstock.

My invention will be hereinafter fully described, and its novel features carefully defined in the claims.

In the accompanying drawings, illustrative of my invention, Figure 1 is a sectional elevation of a Mauser riiie provided with my improvements, and Figs. 1 and 1b illustrate details of construction of the same. Fig. 2 illustrates another form of the mechanical gravity-controller. Fig. 3 shows the arrangement of the gravity device of Fig. 1 when the piece is to be discharged by elevating it.

My improvements provide a trigger-lock, detent, or stop, whereby the trigger can be operated so as to discharge the piece only 1889, No. '7,841 and No. 80,629.

when the latter is elevated or depressed to a given angle.

Referring to Figs. 1, 1n, and 1b, a is the trigger of the gun, and b is the trigger-guard. c is the lever, which forms a movable stop and which turns about a pivot at c', and has its front end arranged to take behind the trigger and prevent the latter from being pulled or drawn back. A suitable spring 7c presses down upon the rear end of the lever c back of the pivot and keeps that end pressed down against a limiting-stop on the guard, the other or detcnt extremity of the lever being thus maintained in its position behind the trigger a. Another lever d, which I will call the displacing-lever, is pivoted in the gunstock at d', and its frontend takes under the rear end of lever c. The rear end CZ of lever d is arranged to stand below the outlet of a bent or L-shaped tube or guide e, set in the gunstock and containing a ball or shifting weight f, which, when the gun is depressed to a certain angle, rolls down said tube and falls upon'the end d of the displacing-lever, thus depressing the latter and acting through the same to depress the detent end of lever c until it is below and t'ree from the trigger a, when the latter, now freed, may be drawn back and the gun tired.

In order that the angle of elevation at which the gun may be discharged can be varied at will within limits, I prefer to mount the tube@ in a circular casing c, set rotatively or movably in the gunstock and provided with a pointer h, adapted to traverse a graduated plate i, iiXed to the stock. Fig. 1CL is a sectional elevation of this casing g and the tube e This view shows the position of the parts when the gun has been depressed and the ball f has fallen on the displacing-lever. Fig. 1" shows the casing g in transverse section.

The construction illustrated in Figs. 1, l, and lb is adapted for effecting the discharge of the gun by the depression of the barrel thereof. In Fig. 3 the tube e is represented as it will be arranged when the gun is to be discharged by elevating it. It is merely reversed in position.

Fig. 2 illustra-tes a modified construction, wherein a pivotally-mounted tube containing some iuid (preferably mercury) is employed in lieu of the bent tube e and ball f. In this construction a straight closed tube e is piv otally mounted at j in the casing g and partially filled with mercury. Vhen the piece is held in an elevated position, the mercury will flow to the shorter end of the tube and the latter will stand inclined, as represented in dotted lines; but when the piece is depressed to the discharging-point the mercury will flow to the longer end ofY the tube, and this end thus weighted will fall upon and depress the displacing-lever d, as described, with respect to the ball f. It will be obvious that some variation in the construction of the device as above described may be made without materially departing from my invention, and I do not limit myself to the exact construction shown.

Having thus described my invention, I claiml. The combination, with a'gun having a trigger to eect the discharge, of a movable stop arranged behind the trigger to prevent it from being drawn back, the displacing-lever which displaces said stop and frees the trigger, and a mechanical gravity-controlled mechanism, substantially as described, which actuates said displacing-lever when the gun is brought to a predetermined angle of elevation, substantially as set forth.

2. The combination, with a gun having a trigger to effect the discharge, of the movable stop arranged behind the trigger to prevent the same from being drawn back, the displacing-lever which displaces said stop and frees the trigger, the guide e, mounted in the gunstock with its open end over said displacing-lever, and the shifting weight in said guide, all arranged to operate substantially as set forth.

3. The combination, Witlra gun having a trigger to eiect the discharge and a movable stop to prevent said trigger from being actuated, of the shifting Weight mounted in the gunstock and adapted to fall when the gun is brought to a predetermined angle, and intermediate mechanism between said Weight and movable stop, whereby the fall of said weight moves said stop and frees the trigger, as set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ALBERT VON DERSCHAU.

Witnesses:

A. Voe'r, E. FRANK.