Locke issues new catalog

The Locke Insulator Manufacturing Company, Victor, N. Y., in an interesting booklet entitled "The Insulator Book" and just issued by the company, presents 10 designs of insulators, as manufactured by this company. Catalog descriptions, illustrations and dimensioned drawings are shown for each one of the 10 designs considered in this booklet. The voltages which these insulators are designed for range from 27,000 to 80,000 volts, and they include designs with two, three and four petticoats.