AUTOMATIC MECHANICAL LEVELLING DEVICE

Abstract: Device for examples given in the description and other situations, where regulation of heights, adjustment of surfaces according to predetermined, maintained level, or for counteracting centrifugal force, heaving of objects on water or land, of objects travelling on rails, wheels, belts, skis, objects driven by propellors or other forces. These wants have been solved by allowing a pendulum (2) to transfer force from the weight of the pendulum in the vicinity of the centre point (1) at the attachment plate (7), from which it is transferred via pendulum rod/rods acting on a piston or pistons (5), which transfer the force via pipes or hoses (6) in parallel or crosswise to pistons or vacuum pressure springs, of which there are two or a plurality arranged in pairs or triangularly.

Description: AUTOMATIC MECHANICAL LEVELLING DEVICE. Device for use when automatic, mechanical control/regulation is required in the fields given in the description, as well as other fields. BACKGROUND OF THE INVENTION The present invention, comprising pendulum, pendulum attachment and hydraulic pistons, actuates hydraulic pistons by the movement of the pendulum in relation to its attachment and the plumb line, the pistons transferring force via pipes or hoses to a piston or pistons to someapparatus given in the description, or to a part thereof, or to some else, which are to be actuated by regulation, control or the maintenance of a level against the action of centrifugal force. DESCRIPTION The device is intended to supplement a control and/or dampening regulator, and includes a hydraulic piston or pistons and a pendulum. The automatic, mechanical leveller can be used in other connections where a surface such as a boat deck, chassis, vehicle body, load surface, apparatus substructure, prime mover apparatus or the like is desired to have a maintained or predetermined level, e.g. a horizontal level. The device is intended to supplement a control and dampening regulator, or to be used coupled together with hydraulic pistons/vacuum subpressure springs in different combinations and positions, to maintain or correct a plane, a surface, a vehicle body, a deck, a platform or other object which is to maintain its horizontal or predetermined attitude in relation to plumb. The movement is transferred to additional hydraulic pistons, which correct or maintain the pre- determined attitude of the object in relation to plumb. It may also be used to counteract centrifugal force in vehicles with changing direction of travel, so-called negative steering. OBJECT OF THE INVENTION AND ITS MOST IMPORTANT CHARACTERISING FEATURES The correctable range of movement may be varied depending on the size of the pistons, weight of pendulum and its length. The force obtained is transferred via the fluid or air in parallel or crosswise to pistons connected to the supporting points of the object or apparatus, with the aid of levellers placed in parallel or crosswise. The correction achieved can be fixed by shutoff valves placed centrally or at the ends of the pistons. The invention will be understood from the drawing, and it is defined in the accompanying claims. OTHER FIELDS OF USE Levellers can be combined crosswise or from a centre point like a star in a height direction. In this case support wheels correct the position of a drilling pipe in relation to the centre point the predetermined plumb line. DESCRIPTION OF DRAWING An automatic, mechanical leveller is shown from the left hand side, with a section at the centre point of the pendulum. The right hand Figure illustrates the principle of the leveller seen from the front. DESCRIPTION OF EMBODIMENT 1. Pendulum attachment 2. Pendulum 3. Pistons 4. Piston rod/pendulum shaft 5. Liquid 6. Pipe/hose, these are suitably provided with shut¬ off valves for fixation of the leveller and pistons 7. Attachment plate

Claims: CLAIMS Leveller comprising pendulum (2) , attached to a pendulum attachment (1) arranged in a carrier (7), characterized in that the relative movement of the pendulum in relation to the carrier is transferred to a piston rod (4) , which affects the lateral position of a corresponding piston or pistons (5) , and in that the force transferred achieves with the aid of the pistons a pressure or suction, which increases or decreases the liquid or air in the piston/pistons (5) , the liquid/air being transferred via piping or hose, in parallel or crosswise, to pistons/hydraulic sub- pressure springs placed at the outer edges of the leveller.

Inventors: KRAL JAN, KRAL, JAN
Applicants: KRAL JAN, KRAL, JAN
Application year: 1986
Main classification: G12B5
IPC codes: B60G17, B63B29