Hawkins electrical guide. Questions, answers & illustrations; a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833- · New York, T. Audel · leaf 181
nife tj-pe of flasher with metal contacts. The construction is cheaperthan the carbon type. It is mounted on a slate base, and is heavily built throughout.The switches are designed for 15 amperes capacity double break. SIGN FLASHERS 869 Brush Flashers.—These machines are provided with… … Fig. 1,017—Sign flasher transmission gearing. The vieiv shows an oil tight gear case with coverplate removed. The gears are equipped with ball bearings and run in graphite grease.By means of the worm gear the large speed reduction necessary between the flasher shaftand motor is obtained without a…
Electrical engineering
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
