[Bubier], Edward Trevert, 1858- [from old catalog] · Lynn, Mass., Bubier pub. co. · leaf 17
can be produced in larger quantities by influence orfrictional machines. The first machine of thiskind was invented by Otto Guericke and consisted KECENT APPLICATIONS. 15 of a globe of sulphur being revolved on an axis byturning a crank, one hand being held against theglobe as a rubber. He… … THE HOLTZ MACHINE. electricians, Holtz and Topler. The Holtz machine,of which there are a number of styles, is shown onthis page. On a wooden base are mounted twoglass plates; the rear plate B stationary, and sup-ported by three ebonite insulators, two below and 16 ELECTKICITY AND ITS one above;…
Electricity
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
