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 194
Fig. 1.036.—Clock monogram or electric sign clock, operated by the mechanism shown infig. 1,037. … Fig. 1,0.?7.—Betts clock mechanis.-n for operating electric monogram time flasher. The sec-ondary mechanism consists of a three cylinder flasher and is controlled by a master clockwhich transmits an electric impulse through a relay snitch one each minute. This flashesthe time in figures on the…
Electrical engineering
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
