Other

Marathon Letourneau Company

Letourneau Company

James A Dupuy

Donald M Cross

Clyde H Wilson

Duel J Tarrant

A secure safety anchor that is easy to utilize is provided for attachment to structural angle irons in marine installations and the like. The anchor includes a vise grips with movable and stationary jaws, and a head welded to the stationary jaw. A flange surface portion of the head extends substantially perpendicular to an imaginary line between the vise grips jaws when in the clamping position, and a number of force concentrating set screws pass through the flange surface at an angle of about 15 degrees with respect to the imaginary line. A through-extending opening in the head provides for attachment of a safety belt clasp.

Safety belt anchor

A cable dead end, and method of dead end formation, that can be readily utilized in the field with a minimum of equipment and components, yet providing a durable, tight, dead end. The cable end is cut off and a ferrule is slipped over the cable end onto the cable. The strands at the end of the cable are unwound and separated, an insert is disposed over the core strand and is disposed within a general bird-cage configuration of the cable strands at the cable end. The ferrule is then moved over the bird-cage configuration and to the end of the cable, and the void space inside the ferrule between the strands, ferrule, and insert is packed with steel wool. Then an anerobic, structural, single component adhesive (e.g. an oxygenated methacrylic) is poured into the ferrule interior volume, and quickly cures. Preferably the insert is barbed, and the interior cross-section of the ferrule is elliptical.

Cable dead ending

Apparatus which renders a self-elevating drilling platform self-mobile on land and a method of moving the drilling platform employing the apparatus. The self-elevating platform includes a body, forward and rear legs, and means for adjusting the legs by moving the legs with respect to the body and moving the body with respect to the legs. The apparatus includes a launch pad which will be pivotally mounted to the platform beneath the body. In operation, the legs of platform are adjusted so that, alternatively, the launch pad swings forward beneath the body when the pad is elevated off the ground and the body pivots forward around the pad when the pad is on the ground.

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Vicksburg, MS, United States of America

James A Dupuy