Stabbing board assembly

Details Stabbing board assembly Stabbing board assembly

1978-04-26

1979-06-05

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Wall- or floor-attached

182148, 182114, 414 22, E04G 310, E04G 314

Patent

active

041571290

ABSTRACT:
A stabbing board assembly comprising a support platform mounted for powered vertical adjustment on a pair of laterally spaced vertical rails which are in turn fixed, preferably releasably, to structural members of a derrick by upper and lower sets of longitudinally adjustable mounting arms. The platform in turn includes a section slidably engaged therewith and power controlled for selective extension and retraction.

REFERENCES:
patent: 2076810 (1937-04-01), Deckard
patent: 2425302 (1947-08-01), Calhoun
patent: 2570076 (1951-10-01), Sims
patent: 3023831 (1962-03-01), Bevis
patent: 3061041 (1962-10-01), Taylor
patent: 3596735 (1971-08-01), Denier

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