Elevator – industrial lift truck – or stationary lift for vehicle – Stationary lift for roadway vehicle or required component... – Having specific drive means for support
Patent
1977-12-13
1979-08-14
Reeves, Robert B.
Elevator, industrial lift truck, or stationary lift for vehicle
Stationary lift for roadway vehicle or required component...
Having specific drive means for support
187 29R, 200153LA, B66B 136, B66B 150
Patent
active
041642716
ABSTRACT:
A system for indicating the stop levels for an elevator car in a hoist shaft so as to transmit signals to the elevator machinery when a selected stop level is approached. Vertically aligned pins are provided projecting from the wall of the hoist shaft; at least one pin being provided for each stop level. The pins extend into the path of the arms of the a cross, fixed to one end of a shaft journaled in a box which is attached to the outside wall of the elevator car and cause the cross and shaft to rotate a quarter turn each time one of the arms of the cross engages one of the pins. The other end of the shaft carries a pinion gear which engages a movable rack connected to a linearly movable slide mounted on the elevator car. One end of the slide ends in a stairstep-like configuration, each step serving to actuate one microswitch in a transverse row of microswitches as the slide moves. The slide is advanced one step, corresponding to one story, for each quarter of a complete revolution by the cross when the elevator car is traveling through the hoist shaft. Thus, when each floor level is reached, the corresponding microswitch will be closed by the slide to transmit a signal to the elevator machinery.
REFERENCES:
patent: 681555 (1901-08-01), Kammerer
patent: 1219061 (1917-03-01), Worthen
patent: 1505699 (1924-08-01), Clancy et al.
patent: 2014821 (1935-09-01), Staley
patent: 2018958 (1935-10-01), Jones et al.
patent: 3674113 (1972-07-01), Richmon
Linden-Alimak AB
Reeves Robert B.
Rowland James L.
LandOfFree
System for indicating stop levels for an elevator does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System for indicating stop levels for an elevator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for indicating stop levels for an elevator will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1374697