International Library of Technology · Scranton, International Textbook Co. · leaf 468
Fig. 46. Fig. 47. be put in multiple. The lamp wires pass under the porce-lain base through two grooves made for that purpose andcome up into posts /, /, where they are held by screws. Whenthe key /i is turned to the right, spring /> winds up as far aspossible and switch blade k then jumps loose…
Electrical engineering
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