Insulating materials : vulcabeston controller parts, field spools, bushings, etc. ... (1894)
H. W. Johns Mfg. Co. · H. W. Johns Mfg. Co. · leaf 5
loo, Round Top, mall, iron shell, without ear $ .80 no, Round Top, brass shell, without ear 1.15 112, Round Top, Feed In Hanger, brass, withoutear 1.65 . Johns Manufacturing Co. UNE INSULATOR. 7=10 INCH SWIVEL HANGER. … This hanger offers specially valuable features as a TrollevInsulator. The steel screw stud I jVinchi is firmly imbeddedin and extends from solid Moulded Mica Insulation. TheMalleable iron Skirt insulated on the under side to affordample surface insulation protects the insulation from blowsof the…
Electricity · Electrical utilities · Insulators
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