Self-adjusting brake engine limit switch assembly

Details Self-adjusting brake engine limit switch assembly Self-adjusting brake engine limit switch assembly

1980-09-24

1982-08-17

Scott, James R.

Electricity: circuit makers and breakers

Special application

200 47, 200 6144, 84 111, H01H 316

Patent

active

043451233

ABSTRACT:
The self-adjusting limit switch assembly of this invention has two switches mounted on a slide for sliding movement on a bracket. A transverse slot in the slide has two facing surfaces. The switches are mounted on each side of the slot with their operating members extending slightly past the slot. The actuator is positioned to extend into the slot. When the brakes are first moved to the brake released position the actuator engages not only the operating member of the switch on that side, but also a wall of the slot and moves the slide to a brake released position thereby correctly adjusting the position of the switches. When the brakes require adjustment due to wear, the actuator engages the operating member of the second switch, as before, causing an indicator to function.

REFERENCES:
patent: 2566824 (1951-09-01), Carlson
patent: 3218403 (1965-11-01), Le Wan
patent: 3715530 (1973-02-01), Dalton
patent: 3776329 (1973-12-01), Hope et al.
patent: 3783210 (1974-01-01), Spooner

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