Winch for handling an elevating dome shaped member of a building

Details Winch for handling an elevating dome shaped member of a building Winch for handling an elevating dome shaped member of a building

1978-05-31

1980-04-01

Noland, Kenneth W.

Implements or apparatus for applying pushing or pulling force

Step-by-step traveling bar

Pawl actuated

49141, B66D 100

Patent

active

041958195

ABSTRACT:
The locking device comprises a rod and cooperates, on the one hand, with a ratchet wheel fixed onto the winch drum and, on the other hand, with a flap comprising a spring and which is maintained in the lowered position by a breaking pane, destruction of said breaking pane freeing the flap which under action of the spring raises the locking device whereby freeing the ratchet wheel and the winch drum of which the cable freely unrolls under action of a motor opening the dome shaped member.

REFERENCES:
patent: 1136141 (1915-04-01), Kelley
patent: 2029818 (1936-02-01), Fleming
patent: 2100782 (1937-11-01), Kellogg
patent: 3461607 (1969-08-01), Kiyoshi et al.

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