SEISMIC WAVE RADIATOR Russian patent published in 1995 - IPC

FIELD: seismic survery. SUBSTANCE: guiding device mounts additional hydraulic cylinder whose rod is joined with guide block. Piston elements of main and auxiliary cylinders communicate through channel with check valve and throttle valve. This makes it possible to push forward auxiliary hydraulioc cylinder rod during recoil of weight from radiating plate and to hold weight on rope passed through guide block thereby preventing radiating plate restriking by weight. Besides, controlled flow regulator is introduced in hydraulic scheme and mounted in parallel with check valve in main line connecting distributer with piston element and communicating through control element and main line with other main line which enables matching of rod pushing-forward and weight displacement speeds during working stroke of weight. EFFECT: eliminated reduction in radiator energy and formation of loops of rope. 3 cl, 3 dwg