Biased sheave frame for aerial tram

Details Biased sheave frame for aerial tram Biased sheave frame for aerial tram

1980-05-13

1982-05-18

Reese, Randolph A.

Railways

Traction

Cable

104115, 104173R, 104197, B61B 1206

Patent

active

043299261

ABSTRACT:
A compound frame to support a plurality of sheaves on a tower of an aerial tram with a predetermined bias between each sheave and a supported transiting cable. The sheaves are supported in paired opposed groups with each sheave of a group in substantial opposition so that the bias of each group of sheaves provides a safety factor to aid in maintaining a transiting cable therebetween. The manner of biasing paired sheave groups requires minimal forces for greater economy. An associated desheavement annunciating system is disclosed.

REFERENCES:
patent: 2709966 (1955-06-01), Boynton et al.
patent: 3347172 (1967-10-01), Sowder
patent: 3429279 (1969-02-01), Pomagalski

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