MECHANISM CHANGING OVER FEEDING OF GUN Russian patent published in 1997 - IPC

FIELD: remote control mechanisms with changed-over feeding. SUBSTANCE: handle for changing over feed includes pulley made fast on it and spring-loaded locating arm which limits swinging angle of lever. Rope is attached with mid tip to pulley of mechanism changing over feeding, ends of rope are anchored on pulley of handle for changing over feed. Pulley of mechanism changing over feed has boss with groove where slider moves, linger is pressed into slider. To change over feeding operator shifts handle for changing over feed from which effort is transmitted via rope to pulley of mechanism changing over feed. In this case finger presses against lever of stopper of lever for changing over feed and moves it aside. Stopper comes out of groove, releases lever for changing over feed and this lever is moved to the other extreme position. With further turning of pulley finger moves in groove, disengages lever of stopper which returns under action of spring into central position fixing lever for changing over feed. During subsequent backward shifting pulley rotates in opposite direction and finger presses against lever of stopper on the other side. EFFECT: enhanced functional reliability and efficiency. 1 cl, 6 dwg