Traversing hoists – With haul-in line
Patent
1978-12-11
1980-12-09
Kunin, Stephen G.
Traversing hoists
With haul-in line
114 61, 212191, 340685, B66C 2352, B66C 1348
Patent
active
042380375
ABSTRACT:
A floating crane on a pontoon of which installed are a crane slewing portion which carries a boom and boom slewing, boom luffing and load hoisting drives controlled by respective master controllers, and also a heel compensation device controlled by a signal from an angle-of-heel transmitter. The crane comprises a control system which controls operation of said drives by a signal from the angle-of-heel transmitter and includes a device which converts the value of a heeling angle to an electrical signal, the input of this device being connected to the angle-of-heel transmitter and the output, to one input of an angle-of-heel comparator unit, another input of this comparator unit being connected to a signal setting device generating a signal proportional to an allowable angle of heel, and the output of the comparator unit is connected in parallel to one group of inputs of OR logic units, the other inputs thereof being connected to the outputs of master controllers of respective drives, the outputs of the OR logic are connected to the inputs of respective drives via voltage converters.
REFERENCES:
patent: 2346066 (1944-04-01), Conrad
patent: 3269344 (1966-08-01), Bell
patent: 3631537 (1971-12-01), Zibolski
patent: 4037742 (1977-07-01), Gustafsson
patent: 4047617 (1977-09-01), Tax et al.
patent: 4078668 (1978-03-01), Hohmann
patent: 4150635 (1979-04-01), Lloyd et al.
Azovtsev Alexandr A.
Cherevaty Anatoly A.
Fadeev Valery G.
Kuznetsov Lev E.
Podbeltsev Viktor I.
Johnson R. B.
Kunin Stephen G.
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