Vertically moving platform supported on legs

Details Vertically moving platform supported on legs Vertically moving platform supported on legs

1981-08-13

1984-03-20

Taylor, Dennis L.

Hydraulic and earth engineering

Marine structure or fabrication thereof

With work deck vertically adjustable relative to floor

74421R, 254 97, 254112, 405196, E21B 712

Patent

active

044377924

ABSTRACT:
A mobile platform with relatively vertically movable legs, of the off-shore drilling platform type, has a plurality of pairs of opposed racks on each leg, with a row of pinions supported in a pinion carrier for each rack. A link for each pinion carrier is pivoted at one end of the pinion carrier and at the other end to the platform and is disposed in the medial plane of the teeth of the double rack. On the opposite side of the leg from one of these double racks is provided structure for detachably interconnecting the lower end of the leg to the platform for vertical swinging movement of the leg when the leg is in raised position, about an axis parallel to that plane, so that the legs can be swung together at their upper ends when in raised position, into a pyramidal configuration.

REFERENCES:
patent: 3367119 (1968-02-01), Rybicki
patent: 3399578 (1968-09-01), Lindabury et al.
patent: 3570032 (1971-03-01), Allen
patent: 3965757 (1976-06-01), Barrus
patent: 4269543 (1981-05-01), Goldman et al.

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