ters (42.64 way, permitting the concrete to set over the upper half are exposed to various dangers, rendering them unre- feet), the diameter being about 8 meters (26^ feet). liable for use in large cities. Here not only the risk of the cable, and thus provide it with a solid concrete The front… … Preparing the Protective Sheath. Laying the Cablo in the Trench, THE LAYING OF A 10,000-VOLT CABLE,
Automobile · Gasoline · Motor · Dam · Concrete · Apparatus · Scientific American · Machine · Liquid fuel · Cubic feet · Mutual life · San Francisco · American june · Motor car · York city · Cubic yards · Touring car
Internet Archive · Public domain (published before 1931). Free to use for anything.
