Metal working – Method of mechanical manufacture – Electrical device making
Patent
1978-07-24
1980-07-08
Hall, Carl E.
Metal working
Method of mechanical manufacture
Electrical device making
29609, H01F 4102
Patent
active
042109949
ABSTRACT:
A method of fabricating a lifting magnet includes welding dished shells in a nested relationship to form a dome-shaped case, cutting at least one radial slot in the case, welding a central core interiorly of the case, and placing a removable, internally coolable conducting coils on the core. A coolant is flowed through the coil.
REFERENCES:
patent: 2479248 (1949-08-01), Moore et al.
patent: 2511693 (1950-06-01), Burghoff
patent: 3054026 (1962-09-01), Lovell
patent: 3693126 (1972-09-01), Rybak
patent: 3840983 (1974-10-01), Ryff
patent: 3891953 (1975-06-01), Thomin
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