Safety device for lifting magnets

Details Safety device for lifting magnets Safety device for lifting magnets

1978-07-10

1980-12-02

Swann, III, Glen R.

Communications: electrical

Condition responsive indicating system

Specific condition

294 655, 340540, 340666, 340668, G08B 2100, B66C 1500

Patent

active

042374553

ABSTRACT:
A safety device for lifting magnet has sensor means responsive to flux produced by the device in the magnetic circuit including the body to be lifted, a transducer responsive to the lifting tension produced by the device together with a signal translation circuit effective to compare signals from the sensor and from the transducer and to provide an output indicative of a safety margin between lifting tension and the field available for lifting.

REFERENCES:
patent: 3638211 (1972-01-01), Sanchez
patent: 3823395 (1974-07-01), Rigney et al.

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