Insulating materials : vulcabeston controller parts, field spools, bushings, etc. ... (1894)
H. W. Johns Mfg. Co. · H. W. Johns Mfg. Co. · leaf 6
lded Mica Insulation. TheMalleable iron Skirt insulated on the under side to affordample surface insulation protects the insulation from blowsof the tro.ley wheel. A loose yoke fitting a groove in the metal shell facilitatesthe easy attachment and adjustment of the hanger to thespan wire and… … The mechanical features of this hanger are similar in prin-ciple to those of the rVinch Swivel Hanger, and possess sim-ilar advantages. The swivelled collar permits the insulatorto be screwed to a shoulder and assures a rigid connection be-tween hanger and ear. The hanger is insulated thoroughly…
Electricity · Electrical utilities · Insulators
Internet Archive · Building Technology Heritage Library · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer04inte-226-85.webp)
