IMPROVEMENTS INTRODUCED IN THE CONSTRUCTION OF TELESCOPIC HYDRAULIC ELEVATORS, characterized in that the elevator will be constituted by an outer cylindrical body, threaded by its external lower part, to be hermetically closed by means of another piece of similar characteristics, but much shorter, threaded by its internal part, by means of which the assembly can be opened and assemble the pistons that are disposed in its interior; having in its middle part a collar terminated in two diametrically opposed trunnions that serve to support and rotate the lift on the frame of the vehicle to which it is applied, in one of whose trunnions the fittings and conduits for the oil that drives it are arranged. of a manual or mechanical pressure pump, the tightness being guaranteed by virtue of the existence of a press-tow; in the supero-internal part of the cylinder, a V-joint is provided, and a threaded bushing that retains it and acts as a friction joint for the piston that is housed in it, made of material of a different nature. (Machine-translation by Google Translate, not legally binding)
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