Abstract: An apparatus is disclosed for a two-stage crushing of empty cans along their longitudinal axes to collapse them to minimum bulk. The apparatus has a stanchion fixed to a base and long and short lever arms pivotally mounted on the stanchion. A pivotal linkage interconnects the long lever arm with the short lever arm. First and second crush heads are pivotally mounted between the base and the long and short lever arms with a pantograph type linkage to control the attitude of the crush heads.In the first stage of crushing, the can is placed between the first of the crush heads and the base, and the long lever arm is moved toward the base to partially crush the can axially. In the second stage, the partially collapsed can is placed between the base and the second crush head. The long lever arm is moved toward the base thereby moving the short lever arm toward the base and the can is thereby completely axially crushed.

Abstract: A product dispensing measuring device especially adapted to be affixed to an axially deformed or non-linearly rotating dispensing shaft in order to measure the rate of rotation thereof. The device comprises a pick-up wheel having a plurality of radially outwardly projecting teeth securely affixed to a rotating shaft and a mounting affixed to the shaft adjacent the pick-up wheel and provided with a plurality of roller bearings which enable the mounting to remain stationary as the shaft rotates therein. A mounting arm extends radially from the outer circumferential edge surface of the mounting, and a sensor mechanism is affixed thereto. The sensor mechanism detects the passing of the radially outwardly projecting teeth and converts these impulses into a shaft revolution speed and displays it to an operator of the device. If the shaft rotational speed is observed to be other than that desired, the speed of the rotating shaft may be easily and quickly adjusted.