191.—the Care Of Lighting Dynamos.

If there is a considerable loss of efficiency in the lighting dynamo, this will often be found attributable to discoloration of the commutator by corrosion or by deposition of a......

The Garage Lathe.

Its Equipment for Special Jobs, as Described by Our Driver and Mechanic Readers. T HE ENGINE lathe, once the king of machine tools, has long since fallen from its high estate at......