Overspeed device test disconnect device

Details Overspeed device test disconnect device Overspeed device test disconnect device

1980-03-17

1981-05-12

Swisher, S. Clement

Measuring and testing

Instrument proving or calibrating

Volume of flow, speed of flow, volume rate of flow, or mass...

340515, G01P 2100

Patent

active

042664225

ABSTRACT:
A device for testing, or exercising, or calibrating an emergency governor by disconnecting the overspeed device from the equipment it protects, and driving the overspeed device throughout the entire speed range by using an auxiliary drive.

REFERENCES:
patent: 1622100 (1927-03-01), Flanders
patent: 1782914 (1930-11-01), Townsend
patent: 2552542 (1951-05-01), Duerr, Jr.
patent: 3363446 (1968-01-01), Kaley
patent: 3508443 (1970-04-01), Nutter

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