The Artisan, or, Mechanic's instructor : containing a popular, comprehensive and systematic view of the following sciences ... also biographical notices of eminent scientific men, enriched by portraits : with many interesting and valuable articles relating to the mechanical and useful arts : the whole intended as a companion to the institutes (1825)
Carey, George G · London : Printed for William Cole · leaf 440
THE ARTISAN. 10 … A is the cylinder of glass ; B the cushion The conductors are insulated by varnished or rubber ; C the silk flap ; D the negative rods of glass. conductor; E the positive conductor; F The following figure represents a plate a ball connected with the internal coating machine. of a glass jar,…
