Speed pattern generator

Details Speed pattern generator Speed pattern generator

1977-08-24

1978-12-26

Schaefer, Robert K.

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

B66B 130

Patent

active

041311825

ABSTRACT:
A speed pattern generator for use with manually operated construction elevator car controls. Leveling and running patterns, as well as linear acceleration and deceleration patterns are provided by a pair of operational amplifiers connected to provide integrating and amplifying functions.

REFERENCES:
patent: 1930900 (1933-10-01), Lindquist et al.
patent: 1931030 (1933-10-01), Mortensen
patent: 1953783 (1934-04-01), Stone
patent: 2128045 (1938-08-01), Hanna
patent: 2228072 (1941-01-01), Borland
patent: 3921046 (1975-11-01), Anzai et al.

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