ES244174A2 - A device of articulated retractable ramps c. B. Adaptable in the sports fields and other in spectacles (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

By improvements introduced in the object of the main Patent No. 212,434, relating to a device of Articulated Retractable Ramps, a device of ascending and descending Articulated Tracks is claimed, characterized in that it consists of four reinforcements but joined together, forming a single body, two lines and two curves, the external coating of these materials being adequate to the strength required by these facilities. The aforementioned reinforcements will have attached to their interior or base the supports of lift, elevation and descent, as well as on the sides the hinges, bolts or hemispheres as an articulation device in their two drives, these will be adhered to the wall of the pit, in the other lateral and by the same system as the previous one will be coupled the lifting box, for the constitution of these in velodrome. There are two, but to install independent, the devices of supports, both in the tracks as in the descending ramps, embedded or articulated, the first are those driven by compressed air or hydraulic devices with the corresponding installation of conductive tubes. The seconds by the action of electric motors or explosion with their cables and pulleys that facilitate the displacements of the ascending and descending ramps when they are placed and connected with the lift boxes of the tracks by means of the screws or pins that are carriers the ramps and bolts of security of the boxes of the tracks, the latter are provided with cables that by means of tubes embedded in the ground will connect with the pulleys of inverse rotation to those of the ramps for their shot to ensure the descent and the horizontal position once posed. With the installation of this new device the tracks for the displacement of the Retractable ramps will be suppressed, as well as the taxi system. This will be replaced by solid rubber wheels or sliders with or without bearings. Surrounding the entire playing field will be a small pit with its lid for the storage of sand and ashes to cover the slopes. (Machine-translation by Google Translate, not legally binding)