METHOD OF CONTROL OF MACHINE GUN WITH ELECTRICAL TRIGGER MOUNTED ON ROTATING HATCH OF ARMORED REPAIR-EVACUATION VEHICLE CARRYING EXTERNAL EQUIPMENT AND DEVICE FOR ITS REALIZATION Russian patent published in 1998 - IPC

FIELD: control of machine gun with electrical trigger mounted on rotating hatch of vehicles furnished with external equipment (load platform, crane, etc). SUBSTANCE: to provide firing within maximum probable range of training angles by machine gun mounted on rotating hatch of vehicles, at hatch rotation the machine gun firing electric circuit is automatically broken at the entry to the zone of external equipment and kept broken for manual closing. When the machine is out of the zone the electric circuit gets automatically closed. In the machine gun control device provision is made for a trigger electromagnet connected via a contact ring to the vehicle hull and "PLUS" supply circuit of the vehicle mains. The end of the electromagnet winding is connected to the supply circuit via the relay break contacts. One end of the relay control winding is connected to the hull, and the other end via a toggle switch is connected to the break contacts - to terminal switch with make contacts. The latter is fixed to the hull for engagement with former made as part of a ring with end entries and fastened to the rotating hatch. EFFECT: enhanced reliability. 2 cl, 3 dwg