Communications: electrical – Tactual indication – With input means
Patent
1980-11-25
1982-07-27
Caldwell, Sr., John W.
Communications: electrical
Tactual indication
With input means
116205, 340671, G08B 100
Patent
active
043420281
ABSTRACT:
A drum rotation indicator for a power driven cable drum operated by a control lever, which includes an arbor rotatably mounted within the control lever and having an exposed end with a thimble-like recess. An electric motor rotates the arbor, and the motor is driven by a signal generator driven by the cable drum. A control circuit triggers operation of the motor in one direction or the other upon rotation of the generator in one direction or the other, and a tachometer driven by the motor limits the effect of the generator so that motor speed is held proportional to generator speed.
REFERENCES:
patent: 2754505 (1956-07-01), Kenyon
patent: 2776814 (1957-01-01), Sparks
patent: 4098221 (1978-07-01), Mickelson
Caldwell Sr. John W.
Myer Daniel
The Manitowoc Company Inc.
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