Abstract: For a hydraulic rack-and-pinion steering assembly for which a working piston is guided in a hydraulic cylinder which features an end limit stop by which, in an end position of the working piston, a path for the pressure agent supplied to the working piston by drill holes for the pressure agent is formed from the working space under pressure to a space of less pressure, in order to improve the hydraulic rack-and-pinion steering assembly such that it is simple to manufacture at limited cost, a rack-and-pinion steering assembly is improved by having, in the region of each pressure supply drill hole, at least one drill hole which can be executed and sealed from the housing exterior and which can be connected by means of a connecting line to the respective pressure supply.

Abstract: Weighed, rod-like product is deposited into a receptacle having a bottom wall formed by an iris plate assembly, which may be vibrated and which opens on command to drop the product into one of two cylindrical holding canisters with clamshell doors on their sides. The canisters are mounted in an "L" configuration which toggles back and forth through a 90 degree rotation presenting each canister first in a vertical position to receive product from the receptacle and then in a horizontal position to release product via the clamshell doors into a pocket such as a timing hopper, or a paperboard tray carried by a conveyor to a packaging machine. Interlocks are provided to preclude release of the product or movement of the conveyor when synchronization is lost with respect to either the weighing or packaging machine.

Abstract: The present invention relates to an endless chain structure incorporating a series of cages with a mechanism for varying the distance between the cages. The cages are arranged in two rows, one above the other, and are very close together in the straight stretches. Each of the cages is attached to a mechanism for varying the distances which determine an increase or a reduction in the separation between the cages before or after, respectively their passage over end pulleys or wheels of the structure, so that a cage begins its ascent towards the upper level or its descent towards the lower level, following a curved line determined by the rim of the pulley, to avoid the cage in question from being reached or touched by the cage immediately following and travelling in a direction that is still rectilinear.