Fire escape – ladder – or scaffold – Wall- or floor-attached
Patent
1979-01-05
1982-04-27
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Wall- or floor-attached
182142, 182114, 175 85, E04G 310, E21B 1900
Patent
active
043266029
ABSTRACT:
A portable stabbing board adapted to be attached to a rig for supporting a worker while stabbing joints of tubular members together during running operations including a frame member mountable with the rig, attachment members with the frame member for removably securing the frame member with the rig, a platform adapted for vertical movement along the frame member for supporting a worker during running operations, power means mounted with the platform for providing motive force for moving the platform vertically with respect to the frame member, and safety members with the platform and frame member for preventing unwanted vertical movement of the platform during such running operations.
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RCA Technical Notes "Servicing Ladder", Kenneth C. Gasper, 6/11/1975.
Houston Tong Services, Inc.
Machado Reinaldo P.
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