Elevator – industrial lift truck – or stationary lift for vehicle – Stationary lift for roadway vehicle or required component... – Having specific drive means for support
Patent
1989-12-26
1990-12-18
Skaggs, H. Grant
Elevator, industrial lift truck, or stationary lift for vehicle
Stationary lift for roadway vehicle or required component...
Having specific drive means for support
187108, 187 74, 188180, B66B 516
Patent
active
049779826
ABSTRACT:
The cable drive sheave (14) carries a wedge-shaped brake ring (44) engageable with V-shaped brake shoes (52, 58). Each shoe is spring biased (68, 76) tangentially toward the ring and resiliently supported and biased radially (50) toward the ring. The shoes are restrained (84) during normal elevator operation and released on either cab upward overspeed (22) or on cab movement from a landing with the doors open (32).
REFERENCES:
patent: 3469678 (1969-09-01), Schroder et al.
patent: 3587785 (1971-06-01), Krauer et al.
patent: 3695396 (1972-10-01), Jones
patent: 4095681 (1978-06-01), David
patent: 4538706 (1985-09-01), Koppensteiner
patent: 4923055 (1990-05-01), Holland
Bialy Louis
Cooney Anthony
Reiskin Edward
Sheridan William
Kochey Jr. Edward L.
Noland Kenneth
Otis Elevator Company
Skaggs H. Grant
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