BRICK TRAY AUTOMATIC GRIP FOR LIFTING TWO TRAYS AT A TIME Russian patent published in 1999 - IPC

FIELD: civil engineering; load gripping devices. SUBSTANCE: automatic grip has lifting yoke, lower and upper crossmembers connected by guides rigidly secured on lower crossmember. Grip has end face and side walls with pick-ups. Ratchet wheel secured on shaft on lower crossmember is coupled through shaft with cranks and connecting rods turning tray catchers by means of upper levers. Gear rack is secured on upper crossmember. Grip has also twin gripping device with twin catcher for engagement with two trays. Movement to twin catcher is transmitted from shaft by gears, connecting rod and lever. EFFECT: possibility of lifting two trays simultaneously. 8 dwg