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Publication numberUS926456 A
Publication typeGrant
Publication dateJun 29, 1909
Filing dateAug 4, 1906
Priority dateAug 4, 1906
Publication numberUS 926456 A, US 926456A, US-A-926456, US926456 A, US926456A
InventorsBurkard Behr
Original AssigneeBurkard Behr
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 926456 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)


926,456; Patented June 29, 1909.

. Inventor TEN n.



Specification of Letters Patent.

Patented June 29, 1909.

Application filed August 4, 1906. Serial No. 329,207.

To all whom it may concern:

Be it known that I, BURKARD BEHR, a citizen of the German Empire, residing at Suhl, in Thuringia, in the Kingdom of Wurtem. berg, Empire of Germany, have invented cer tain new and useful Improvements in Firearms, of which the following is a description, reference being had to the accompanying drawing and to the letters of reference marked thereon.

This invention relates to a means for locking the barrel in firearms of all kinds. The barrel fastening devices hitherto employed have more particularly the drawback that they are not adapted for use with guns of large bore, as the closing at the breech block is not gas-tight, the latter being either curved concentrically to the axis of rotation or having to be made at an inclination to the axis of the bore in order to allow of the barrel or barrels being turned up. v

Now according to the present invention the barrels may be turned up in such a way that a rectangular breech plate or block may be provided and a thoroughly gas-tight closing of the cartridge chamber to the rear is obtained. Where trunnions are used as pivots for the barrels, this pivoting is attained by the entire system together with the trunnions being adapted to turn on an axis which does not coincide with the axis of rotation of the barrels but lies at the most at the level of the lowest point of the barrel or barrels. If hinge pins be employed as pivots for the barrels, the barrels may either be turned up in a manner similar to that in the case of the arrangement of trunnions, on a separate axis, or even directly on the hinge pin itself.

A further improvement of the fastening mechanism according to the present invention consists in that where hinge pins are used, the weight of the weapon is diminished, which is an effect universally sought after. In other known barrel fastemng mechanisms the arrangement of the trunnions mounted in the walls of the chamber and also the slide lugs of the barrel with their recesses lying also in the chamber walls necessitate considerably longer and thicker chamber walls which involves a considerably greater weight of the weapon provided with such a fastening mechanism. These drawbacks are the more troublesome in the case of double barreled and multi-barreled guns, as the barrels up to the trunnions lie in the pins, the long chamber inclosing the chamber. Now if in order to diminish the weight as far as possible, the barrels be pivotally arranged on the well-known hinge barrel is dispensed with, while for fastening, side cheeks provided on the basquill bolts, which have recesses for the slide lugs of the barrels, suffice. Further, by. arranging trunnions on the barrels and also by making specially broad front shafts, the costs of manufacture are very considerably increased, against which the improved fastening device according to the present invention may be made much simpler.

The object of this invention is shown in the accompanying drawings in several forms of construction Figure 1 is a side view of a form of construction of a single barreled gun with trunnions and projections undercut eccentrically to the latter. Fig.2 a side view of another form of construction of a double barreled gun with a hinge pin as a pivot with projections undercut concentrically; and Fig. 3, a similar view of a three-barreled gun with projections undercut eccentrically to the hinge pin; Fig. 4 is a view of the gun shown in Fig. 3, seen from above.

The barrels a, are pivotally mounted in the ordinary way in a chamber I) and provided with lateral undercut projections c behind which in the closed position, suitable projections d. of the chamber 1) engage.

The form of construction shown in Fig. 1 relates to. a single barreled gun which is provided with trunnions e acting as a pivot. Now according to the projections c are undercut eccentrically to the pins 6 while the breech plate f may be formed flat and rectangular. In consequence of the undercutting of the projections 0 being eccentric to the trunnions e, these may no longer be pivotal in a fixed position, but must be able to yield to follow the eccentrical movement. This is attained by the trunnions e being mounted in suitably shaped slots 9 formed in the sides of the chamber 1),

so that, on the barrel a being turned up, they may move forward. When the gun is closed the trunnions e are completely relieved as the entire pressure is carried by the projections 0.

Figs. 2, 3 and 4 show forms of construction of double or multi-b arrel guns, in which hinge pins h are employed as axes of rotation. Instead of the long chambers b hitherto necessary, only small checks '5 of suitable form are the present invention here here provided, while the projections c in Fig. 2 are shaped concentrically to the hinge pins, but in Figs. 3 and 4 they are cut eccentrically to them, and the hinge pins f, as the trunnions e of the form of construction shown in Fig. 1, lie in suitably shaped slots is formed in the chamber 6.

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that What I claim is 1. In a firearm, in combination, a barrel pivoted on a hinge pin located below the longitudinal axis of the barrel and provided with side projections at its rear end, a breech chamber having substantially long arms in which said hinge pin is journaled and shorter arms provided with projections which cooperate with the projections on said barrel, substantially as described.

2. In a firearm, in combination, a barrel, a hinge pin therefor, side projections at the rear end of the barrel, and a breech chamber having short arms provided With projections which cooperate with the projections on the barrel, substantially as described.

In testimony whereof I aflix my signature, in presence of two Witnesses.




Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2529733 *Dec 26, 1947Nov 14, 1950King Rufus AFirearm
US4199886 *Apr 21, 1978Apr 29, 1980Albert DeuringGuns
US4718186 *Mar 26, 1986Jan 12, 1988Dynamit Nobel AgPivotal connection between break-open action and barrel of a gun
US6907687 *Dec 2, 2002Jun 21, 2005Browning Arms CompanyOver-and-under shotgun apparatus and method
US7207130Jan 5, 2005Apr 24, 2007Browning Arms CompanyOver-and-under shotgun apparatus and method
Cooperative ClassificationF41A3/58