Wheels Of Industry—con S Detachable Tire Jackets.

One of the latest interesting aysteins for converting discarded pneumatic-tire covers into detachable jackets is that for which Scott's Economizer Co., of Bromford Lane,......

Electric-vehicle Committee's Standard Charging Plug.

The accompanying illustration depicts the construction of a charging plug and receptacle as recommended for standardization by the Electric-Vehicle Committee. The purpose for......