Insulating materials : vulcabeston controller parts, field spools, bushings, etc. ... (1894)
H. W. Johns Mfg. Co. · H. W. Johns Mfg. Co. · leaf 18
m 0000 B. & S., up to500000 C. M. Threaded for one inch standard pin. No. 904, No. 1, Iron-Clad, plain top No. 905 No. 2, i>£ inch top groove No. 906, No. 3, y% • •• . W. Johns Manufacturing Co. SECTION INSULATORS. THE EMERSON. Has a straight under-run for trolley wheel and a wood in-sulated… … No. 952, The Grauten Break, for >6-in. screw stud...THE PHILADELPHIA. No. 954, Philadelphia Break, for side wire attachment... I6.50No. 955, with ^-inch socket for attachment to hanger 6.50 NOISELESS FROG.
Electricity · Electrical utilities · Insulators
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