Popular electricity magazine in plain English (1913) (14578961040)

Identifier: popularelectric619131chic (find matches)

Title: Popular electricity magazine in plain English

Year: 1912 (1910s)

Authors:

Subjects: Electricity

Publisher: Chicago, Ill. : Popular Electricity Pub. Co.

Contributing Library: Smithsonian Libraries

Digitizing Sponsor: Smithsonian Libraries

Text Appearing Before Image:

tfDfli Complete SAdde Details of Lamp Shade means of the paper fasteners in theshown. A small hole is now cut in the top throughwhich the cord is drawn. The socket supportsthe shade.— Wilson S. Sutfin. mop To place a screw in an inaccessible place, fillup the slot in the screw head with common yel-low soap, then stick them on the screwdriver,when one can place them anywhere the screw-driver will reach. 834 POPULAR ELECTRICITY and the WORLDS ADVANCE

Text Appearing After Image:

POPULAR ELECTRICITY and the WORLDS ADVANCE 835 BATTERY AND COIL IGNITION SYSTEM In the battery and coil system for automobilesand motor boats the battery may be a set of drycells usually not less than five connected inseries, by which we mean that the outside bindingpost of one cell is connected to central bindingpost of its neighbor and so on for all the cellsused. It may also be an accumulator, commonlycalled a storage battery, this being a single unithaving its positive terminal marked with a +sign and its opposite terminal with a — sign asin Fig. 1, on the preceding page. The current produced by the battery is not ahigh pressure current and unless aided by someother device it could not overcome the resistanceof the wire and have enough push to force apassage across the spark gap, Fig. 2, to saynothing of its increased resistance due to thehighly compressed mixture. The battery current, however, does haveample volume and this volume is used to accom-plish an increase of pressure,

popular electricity magazine in plain english 1913 book illustrations electricity electric engineering high resolution images from internet archive

1913

Smithsonian Libraries

http://commons.wikimedia.org/

public domain