Shaft guide alignment measurement

Details Shaft guide alignment measurement Shaft guide alignment measurement

1985-10-17

1986-12-09

Little, Willis

Geometrical instruments

Area integrators

Electrical

33178F, 33533, 33544, 33180R, G01B 731

Patent

active

046271708

ABSTRACT:
A conveyance guide alignment measuring device adapted to track along conveyance guides in a shaft, such as a lift shaft, comprises a substantially rigid frame, roller assemblies at either end of the frame and a sub-frame movably suspended from the frame. A pair of opposed roller assemblies are mounted in the sub-frame. The roller assemblies include a fixed assembly which engages a reference guide in the shaft and an outwardly biased assembly which engages an opposed conveyance guide. The sub-frame, being freely suspended, follows any misalignment in the guides and motion sensors are mounted to detect and measure relative motion of the frame, the sub-frame and the roller assemblies mounted on the sub-frame whereby predetermined alignment parameters of the conveyance guides may be determined.

REFERENCES:
patent: 3882606 (1975-05-01), Kaenel et al.
patent: 3886665 (1975-06-01), Lowen
patent: 4048009 (1977-09-01), Weilbacher
patent: 4571848 (1986-02-01), Krutz et al.
patent: 4583297 (1986-04-01), Jewell

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