US1475037A - Pistol - Google Patents

Description

Nov. 20 1923.

E. THIMGREN PISTOL Filed Dec. 28, 1922 I FIG. 1.

' Fatentecl Nov. 20, 1923.

UNHTED STATES PATENT OFFICE.

EDWARD THIMGREN, F POPOTLA, MEXICO.

PISTOL.

Application filed December 28, 1922. Serial No. 609,507.

.To all whom it may concern:

Be it known that I, EDWARD THIMGREN, a subject of the King of Sweden, residing at Popotla, Distrito Federal, Mexico, have invented certain new and useful Improveanents in Pistols, of which the following is a specification.

This invention relates to new and useful improvements in pistols.

An important object of the invention is to provide an improved trigger mechanism that is applicable to breech loading pistols, but may be equally as efiicient when applied to other types of fire-arms.

A further object of the invention is to provide an improved trigger mechanism that is adapted to be actuated by the thumb instead of the usual trigger finger.

A further object of the invention is to provide a rest for the forefinger of the firing hand so that the same may be pointed along the side of the pistol parallel with the barrel, on the theory that a person can more accurately aim when pointing a finger at an object.

A further object of the invention is to provide a trigger mechanism that is simple in construction, reliable in operation, strong,

- and durable.

Other objects and advantages of the invention will be apparent during the course of the following description.

In the accompanying drawing forming a part of this specification and in which like numerals are employed to designate like parts throughout the same,

Figure 1 is aside elevation, partly in section, of the right side of a pistol, and shows in dotted line the operators hand properly positioned in engagement with the same,

Figure 2 is a fragmentary elevational view, partly in section, showing the left side of the pistol with a form of the trigger mechanism displayed in detail,

Figure 3 is a vertical sectional view on line IHIII of Fig. 2, and

Figure 4 is a fragmentary view, showing a modification of the trigger mechanism in detail.

In the drawing, wherein for the purpose of illustration is shown a preferred embodiment of the invention, there is shown a pistol of the Luger or Borchardt type and consists of the barrel 1, barrel extension 2, casing or frame 3 and hand grip 4. Re-

ferring more particularly to Figs. 1 and 3, wherein the right side of the pistol is shown, there is provided a longitudinally extending groove 5 which is parallel with the barrel and along which the forefinger 6, as shown in dotted lines, rests. The object of this construction is to support the theory that one can always point the forefinger at an ob'ect with more accuracy than a pistol.

eferring more particularly to Figs. 2 and 3, there is shown a chamber 7 that extends along a portion of the forward part of the grip 4 and is adapted to house the trigger mechanism as shown. J ournalled to the opposite sides of the chamber 7 is a pin 8 to which is rigidly fixed the lever 9 and offset trigger 10. It is to be understood that the lever 9 is positioned substantially on the central vertical plane of the pistol and that the offset trigger 10 is provided for positioning the thumb piece 11 laterally of the left side of the grip 4 so that it may easily be reached by the thumb of the operator. The angle portion 12 carried by the upper end of the lever 9 is adapted to freely engage one end of a double armed lever 13 that is pivotally supported to the wall of the chamber 7, as at 14. There is provided a spiral spring 15 that is secured to the inner wall of the chamber 7 as at 16, and engages the inner face of the lever 9 to normally retain the said lever in a position against the pin 17. There is also provided a spring 18 that is adapted to normally retain one end of the double armed lever 13 into engagement with the angle portion 12 of the lever 9. Pivotally supported, as at 19 is a sear 20 that is provided with a laterally extending arm 21 that extends through the opening 22, formed in the left side of the chamber 7, to be engaged by the arm 23 of the lever 13. The upper end 24, of the scar 20 is adapted to engage the firing pin 25 for retaining the same in its cocked position.

Referring particularly to Fig. 4 there is shown a modification of the trigger mechanism and embodies a pivot pin 8 to which is rigidly fixed the lever 9 and offset trigger 10 having a thumb piece 11' formed on its outer end. The free end of the lever 9 is provided with an arcuate portion 12 that is adapted to engage the lower arm of the substantially Z-shaped lever l3 which is pivotally supported as at 14. A spiral spring 15 is secured to the hand grip 4, as

at 16, and is provided for normally retaining the lever 9 in a position against the stop pin 17 There is also provided a coil spring 18 that is adapted to bear against the lower arm of the substantially Z-shaped lever 13 to normally retain the same into engagement with the arcuate portion 12 of the lever 9 The sear 20 in this modification is of substantially the same formation as the sear shown in Figs. 2 and 3 and is provided with a laterally extending arm 21 that is adapted to engage the upper arm 23 of the substantially Z-shaped lever 13*. The upper end, 24, of the sear 20 is also adapted to engage the firing pin 25 for retaining the same in its cocked position.

The operation of the device shown in Figs. 2 and 3 is as follows v The firing pin 25, having been moved into its cockedposition, isretained in such position by the upper end, 24, of the sear 20. Whenv the user is desirous of firing the pistol the thumb piece 11- is engaged by the thumb ofthe operator and is pressed downwardly torock the offset trigger 10'and lever 9 with the pin 8 and against the spiral spring 15. This movement of the lever 9 will rock the double armed lever 13 through the medium of the angle portion 12 for throwing the arm 23 downwardly to engage against the laterally projecting arm 21 of the sear 20. This movement of the sear 20will cause the upper end, 2 1, to trip the trigger pin 25 for firing the pistol. In the modification shown in Fig. 4 the movement of the offset trigger 10 will cause the lever 9 to rock the substantially Z-shaped lever 13 upon its pivot 14: for moving the upper arm 23 into engagement with the laterally projecting arm 21 carried by the sear 20. This movement of the sear 20 will cause the upper end 24 to trip the trigger pin 25 for firing the pistol.

It is to be understood that the form of this invention herewith shown and described is to be taken as the preferred example of the same, and that various changes in the size, shape and arrangement of parts may be resorted to without departing from the spirit of the invention or the scope of the subjoined claims.

Having thus described the invention, I claim 1. The combination with a pistol having a hand grip, a casing or frame carried by said hand grip, and a barrel secured to said frame of a finger rest formed in said frame and extending in parallelism with said barrel, a chamber formed in said hand grip and said frame, a pivot pin journaled in said chamber, a lever fixed to said pin, a trigger fixed to said pin and projecting laterally from said case, a pivotally mounted lever secured to said chamber and adapted to operatively engage said first mentioned lever, and a firing pin engaging sear operatively connected to said pivotally mounted lever for actuating the sear to release the said firing pin from its cocked position.

2. The combination with a pistol having a hand grip, a casing or frame carried by said hand grip, and a barrel secured to said frame of a finger rest formed in said frame and extending in parallelism with said barrel, a chamber formed in said hand grip and said frame, a pivot pin journaled in said chamber, a resiliently operated lever fixed to'said pin, a trigger, having a thumb piece, fixed to said pin and projecting laterally from said chamber, a pivotally mounted lever secured to said chamber and adapted to be resiliently held in operative engagement with the first mentioned lever, and a firing pin engaging sear operatively connected to said pivotally mounted lever for actuating the sear to release said firing pin from its cooked position.

3. The combination with a pistol having a hand grip, a casing or frame carried by said hand grip, and a barrel secured to said frame of a finger rest formed in said frame and extending in parallelism with said barrel, a chamber formed in said hand grip and said frame, a pivot pin journaled in said chamber, a resiliently operated lever fixed to said pin, a trigger, having a thumbpiece, fixed to said pin and projecting laterally from said chamber, a pivotally mounted lever secured to said chamber and adapted to be re siliently held into operative engagement with the first mentioned lever, a firing pin engaging sear pivotally mounted on said frame, a laterally projecting arm carried by said sear and adapted to enter said chamber through an opening formed the-rein to operatively engage the pivotally mounted lever for actuating the sear to release said firing pin from its cocked position.

In testimony whereof I have afiixed my signature in presence of two witnesses.

EDWARD THIMGBEN.

' itnesses:

LUIs G. Lnoiv, L. G. CRDovA.

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