US1722397A - Carriage for automatic firearms - Google Patents

Description

July 30, 1929 H. scHULER Er AL 1,722,397

CARRIAGE FOR AUTOMATIC FIREA'RMS Filed Nov. 28, 1928 vA-rrn RN xx Patented July 30, 1929.

' HERMANN VSCIFLULER, OF DUSSELDGRF, AND .ALFRED KRUM, OF DUSSELDQRF-ELLER,

GERMANY, ASSIGNORS TO RHEHHSCEE META,l'Jf'i/'AAREINV UND MASCHINEN- FABRIK, 0F DUSSELDORF-DERENDORF, GERMANY. y

CARRIAGE FOR AUTOMATIC FIREARMS.

Application led November 28, 1928, Serial No.

Generally automatic tire arms are detachably mounted upon a support which may, for the purpose of vertical pointing, be oscillated in a vertical plane about trunnions provided on the body of the carriage. A spring is arranged between the support of the fire arm and the carriage for balancing the arm masses unequally distributed about the trunnions as a rule in such a manner7 thatthe greater weight is directed forwardly.

The present invention consists in a locking device arranged between the fire arm support and the body of the carriage which locking device comes, as soon as the lire arm is lifted off its support, from a position ready to work into the active position and prevents, for instance by locking the balance spring or by coupling the lire arm support to the carriage, throwing upwards of the support relieved of the fire arm. This locking device being automatically released when the fire arm is put upon itssupport, so that the balance spring again becomes effective and the lire arm supiport may again be oscillated.

The fire arm may then rest in the carriage and be oscillated either freely by hand without a pointing machine, or the self locking gear elements, necessary up to now in pointing machines, may be omitted which eX- tremely facilitates the simple mounting and quick pointing, without endangering the gunner or damaging the carriage by a force of the balance spring becoming active on dismounting of the fire arm.

In the accompanying drawing the invention is shown by way of example.

Fig. l is a longitudinal section through the carriage head with the support carrying an automatic tire arm, and 2 illustrates a rear elevation of the carriage head.

The upper carriage a is, in a well known manner, arranged upon a frame, not shown in the drawing, for instance upon a tripod, in such a manner, that it may be oscillated in a horizontal plane. In bearings al in the walls of the upper carriage, the support for the automatic fire arm is journalled by means of the horizontal trunnions in such a manner, that it may be oscillated in a vertical plane. Fixed to the support b of the fire arm is a toothed sector (Z which engages with a gear wheel e keyed upon the shaft e, of the upper carriage. The gear wheel e is rotated by 322,515, and in Germany September 12, 1928.

means of a suitable driving mechanism, not shown in the drawing, which may, if desired, be adapted to be engaged and disengaged.

The fire arm c is mounted upon cross bolts provided on the forked front and rear ends Z22, b3 of the support Z) in a manner to be easily disconnected and dismounted. Accord` ing to the invention a toothed sector b4 provided with notches is connected to the forked rear end 3 of the support Z) for the fire arm. rlhe toothed sector b, carries a slide g which is guided, by means of pins g1, in slots g2. Arranged opposite the teeth of the sector b, and the circular shaped outer surface of the slide g is a spring actuated locking bolt 7L which maybe displaced in a casing o2 of the upper carriage a.

.Vhen the lire arm c is put upon the su pport Z) its weight acts by means of a lateral cam c upon the slide g which is shifted downwardly and thereby disengages the locking bolt h from the toothed sector 72,. By means of the pointing machine el, d, or if desired, by direct pressure upon the handle of the fire arm, the support b and thereby there arm o may new be oscillated about the trunnions 7),. A torsional spring f acting upon the pointing shaft el balances, in a well known manner, the front weight of the oscillating masses.

When the fire arm c is to be taken ofi' its support the rear end of the arm c is first disconnected from the support 7) and then lifted. whereupon the spring` loaded loekins bolt 7i shifts upwardly the relieved slide (,1 and engages the notch of the toothed sector Zi; which is just situated in front of it. Hereby the fire arm support I) is rigidly coupled to the upper carriage a and the force of the balancingr spring f which tends to throw upwardly the support o has no effect.

Y What we claim is:

1. ln a carriage for an automatic tire arm. trunnions provided in the body of the carriage, a support for the automatic lire arm adapted to be oscillated about said trunnions. a balancing; spring acting upon saidsupport, a locking' device between said fire arm support and said carriage body and means for automatically engaging and di-sengagin said locking device as soon as the fire arm is taken off and mounted upon its support respectively., said locking* device, when engaged, serves fire arm support to thel'carriage body andL thereby to prevent upward throwing of the fire arm support relieved from the fire arm.

2. In a carriage' for an automatic fire arm, trunnions provided in the bodyv of the carridge7 @support or'the automatic fire arm adapted to be oscillated about said trunnions, a balancing springV acting upon said support, a locking device between said fire arm Support and said Carriage body, said loclfingv device consistingof at .toothed Sector, curved around the axis of the trunnionsand connected to the lire arm support, ay spring loaded Y locking bolt, provided at the upper carriage and cooperating With the toothed sector, and

a slide, guided in slots provided in the toothed y In testimony whereof We have affixed our 20 signatures.

HERMANN SCHULR.

ALFRED KRUM.

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