FIELD: materials-handling equipment. SUBSTANCE: safeguard has digital computing unit 1, analog-to-digital converter 2, digital storage unit 3, sound synthesizer 4, visual indicator unit 5, actuator unit 6, n number of crane analog parameters pickups 7, m number of discrete parameters and crane operation signals pickups 8. EFFECT: enhanced overload protection. 2 dwg
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Authors
Dates
1994-04-30—Published
1991-12-29—Filed