Pivoted elevator mounting for mobile land seismic energy source

Details Pivoted elevator mounting for mobile land seismic energy source Pivoted elevator mounting for mobile land seismic energy source

G - Physics

01

V

349/13

G01V 1/047 (2006.01) G01V 1/09 (2006.01)

Patent

CA 1141853

ABSTRACT OF THE DISCLOSURE A seismic energy generating assembly includes a seismic energy generator positioned within a cage-like frame and adapted for vertical movement within the frame in re- action to the powerful seismic energy impulses that are trans- mitted downwardly into the earth. The assembly further includes hydraulic catch cylinders for easing the seismic energy generator back down to the ground within the frame after each impulse is generated. Horizontal extensions from this frame ride in guides formed by tubular channels for guiding the entire seismic energy generating assembly when lifted up from the ground by hydraulic lifting cylinders so that the assembly can be readily moved from place to place during seismic exploration. The tubular channels are pivotal- ly mounted to an outer supporting frame on a land vehicle. The seismic energy generating assembly is thereby adapted for swinging movement with the tubular channels about a horizontal pivot axis passing through the assembly and extending trans- versely with respect to the vehicle for accommodating local variations, as encountered, in the slope of the earth's surface. The horizontal extensions include tough, slip- pery plastic polymer sleeves at least partially surrounding vertical cylindrical mandrels which ride within the tubular channels. The tubular channels are pivotally mounted through spherical self-aligning bearings, and in this illustrative embodiment the swinging movement is limited to within approximately 10° from the vertical, but this limit may be more or less.

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