Elevator speed and position indicating device

Details Elevator speed and position indicating device Elevator speed and position indicating device

1992-05-01

1994-09-27

Chapman, John E.

Measuring and testing

Speed, velocity, or acceleration

With distance registering means

73493, 73535, 187134, G01P 318, B66B 504

Patent

active

053498542

ABSTRACT:
An elevator speed and positioning device includes an elongated member and a rotating disk. The elongated member includes an apparatus for indicating position along the member and the disk includes an apparatus for communicating the indicating apparatus. A constant relationship exists between the elongated member and the disk such that relative positions between the two are repeatable. The relative motion between the elongated member and the disk may be quantified to determine the relative position of the elevator car.

REFERENCES:
patent: 1275673 (1918-08-01), Hajek
patent: 3872949 (1975-03-01), Snyder
patent: 4311212 (1982-01-01), Simpson
patent: 4427095 (1984-01-01), Payne et al.

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