Elevator – industrial lift truck – or stationary lift for vehicle – Stationary lift for roadway vehicle or required component... – Having specific drive means for support
Patent
1982-08-09
1984-10-16
Rolla, Joseph J.
Elevator, industrial lift truck, or stationary lift for vehicle
Stationary lift for roadway vehicle or required component...
Having specific drive means for support
410103, 24 69T, B66B 920
Patent
active
044769601
ABSTRACT:
The lift system for the mast assembly of a lift truck normally includes at least one hydraulic cylinder and a pair of lift chains for selectively raising and lowering a movable assembly (upright or carriage assembly) on a fixed upright assembly. The tensions in the lift chains must be precisely set and periodically adjusted by use of an adjustable anchor, including a bolt threadably mounted on the fixed upright assembly and connected to the chain. Space limitations in present day mast assemblies have dictated the need for an adjustable chain anchor that is compact and is designed to be conveniently mounted on an upper end of the fixed upright assembly for ready access. The adjustable chain anchor (19) of this invention solves this problem by providing a cam member (26) adapted to be rotated to adjust chain tension in response to selective rotation of an end of the chain (17) about a fixed pivot axis (A).
REFERENCES:
patent: 2207688 (1940-07-01), Ulinski
patent: 2354178 (1944-07-01), Ulinski
patent: 3101927 (1963-08-01), Gray
patent: 3158107 (1964-11-01), Sharp
patent: 3394778 (1968-07-01), Brinton
patent: 3506092 (1970-04-01), Shinoda et al.
Noland Kenneth
Rolla Joseph J.
Towmotor Corporation
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