Slow descender including fluid and mechanical braking devices

Details Slow descender including fluid and mechanical braking devices Slow descender including fluid and mechanical braking devices

1974-12-17

1976-03-30

Halvosa, George E. A.

Implements or apparatus for applying pushing or pulling force

Step-by-step traveling bar

Pawl actuated

182 5, 188 653, 188271, 188290, 188291, 188292, 188185, 254160, B66D 504

Patent

active

039469891

ABSTRACT:
A slow descender includes a rope pulley and a braking apparatus which restricts the rotation speed of the rope pulley. The braking apparatus includes a mechanical braking device containing a centrifugal brake which has centrifugal weights, a V-shaped lining part cooperating with the weights, and a speed multiplying gearing device connecting the rope pulley and the centrifugal friction brake. The slow descender further includes an oil hydraulic braking device of the vane pump type or of the inscribed gear pump type.

REFERENCES:
patent: 531567 (1894-12-01), Roper
patent: 1303460 (1919-05-01), Cain
patent: 2484913 (1949-10-01), Snell
patent: 3172626 (1965-03-01), Haber et al.
patent: 3188052 (1965-06-01), Longworth
patent: 3259213 (1966-07-01), Daniels et al.
patent: 3760910 (1973-09-01), Koshihara

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