Miller, Kempster Blanchard, 1870-1933 · New York : McGraw publishing company · leaf 162
connections of the automatic shunt are clearly shown in thisfigure. Normally a short circuit exists around the generator,through the wire, .y. This is broken between the pair of springswhen the generator is operated as already described. In Fig. IIS is shown a view of a complete instrument using… … riG. 115—COMPLETE WALL TELErHONE SET. battery, usually consisting of two wet cells of the LeClanche type,is located in the box at the bottom of the wall board, the batteryresting on a cast iron shelf secured to the wall board and beingcompletely exposed for inspection by the removal of the…
Telephone
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