Improvements introduced in hidraulic platforms portacamaras of cinema or television. (Machine-translation by Google Translate, not legally binding)

摘要

Improvements introduced in the hydraulic platforms portacamaras of cinema or television, of the type that are constituted from a transportable chassis, endowed with four directional wheels, on whose chassis is installed a platform that is rotating within a horizontal plane and that it incorporates a liftable boom, to the front end of which a base for the camera and its operator is articulated, suitably counterbalanced all by placing gravitational loads at the rear end of the boom, which is essentially characterized by the elevation and lowering of the boom, as well as rotation in both directions of the platform, can be done either manually and by hydraulic means, using for this last, a battery of hydraulic accumulators that are loaded from an oil tank, with the collaboration of a pump and whose discharge is governed by pressure reducing and regulating valves oras of flow, driving it, with the collaboration of four valves of distribution, four-way and three positions each, located two on the rotating platform and two others in the base articulated to the boom, two oleohydraulic cylinders, one double effect and another rotary that, each one is governed by two of these valves that according to receive fluid produce the elevation and the descent of the pen and the turn in one or the other sense of the platform, respectively. (Machine-translation by Google Translate, not legally binding)