PRODUCT STRETCHER STRAIGHTENING APPARATUS Russian patent published in 1995 - IPC

FIELD: metal working. SUBSTANCE: apparatus has loading device with three hydraulic cylinders positioned on base in parallel one with respect to the other, fixed and movable carriages with grips and pump bar lengthening control detector with spring-loaded pusher. Detector is further provided with intermediate link, double-armed lever, plate with longitudinal slot, stop and actuating member. Stem of first hydraulic cylinder is rigidly connected with movable carriage, stems of first and second pushers are progressively movable till contact with one of pushers with subsequent contact of both stems with movable carriage. Pusher is mounted on movable carriage and connected through intermediate link and double-armed lever with stop, which is positioned in slot for movement during displacement of movable carriage along slot till it comes in contact with actuating member. Plate is positioned for angular displacement till contact with supporting platform connected with base. EFFECT: increased efficiency in straightening of objects, simplified construction and enhanced reliability in operation. 3 dwg