. Electric railway journal . Chicago Railways Shops—Commutator Slotter rior fittings was done by the Lyon Metallic ManufacturingCompany, of Aurora, 111. The machine tool equipment of the toolroom includes aUniversal milling machine driven by a Reliance 2-hp motor;Pratt & Whitney 16-in. toolroom lathe with a S-hp motor;Yankee drill grinder; Universal grinder with 14-hp motor;sensitive drill press designed for four speeds driven by a i-hpmotor, and a Universal shaper with a 5-hp motor. The tool-room fittings include substantial benches of oak having lockeddrawers fitted with trays designed for s
. Electric railway journal . Chicago Railways Shops—Commutator Slotter rior fittings was done by the Lyon Metallic ManufacturingCompany, of Aurora, 111. The machine tool equipment of the toolroom includes aUniversal milling machine driven by a Reliance 2-hp motor;Pratt & Whitney 16-in. toolroom lathe with a S-hp motor;Yankee drill grinder; Universal grinder with 14-hp motor;sensitive drill press designed for four speeds driven by a i-hpmotor, and a Universal shaper with a 5-hp motor. The tool-room fittings include substantial benches of oak having lockeddrawers fitted with trays designed for storing different toolsused in the toolroom. The tools which are kept in stock fordistribution in the machine shop are stored in sheet-steel casesand drawers which were designed particularly for this use. A. Chicago Railways Shops—Motor Installation for DrivingTwo Hack Saws system of brass checks is used to keep track of the location ofeach tool taken out of the toolroom. Across one end of this room is a set of sheet-steel compart-ments for the storage of jigs and dies. This group of compart-ments is 20 ft. long by 6 ft. high and each section is about2 ft. deep. The assortment of jigs and dies kept here for machine-shop use is very complete. It includes jigs for finish-ing brush holders on milling machines, for drilling brake levers,jigs for punching and cutting off controller finger springs withone operation, numerous dies for making all small parts ofthe electrical equipment and for general shop use. The jigsand dies have all been manufactured at this shop and with aview to averting accidents each die block is equipped with aspring trigger to throw out automatically the finished pieces. ELECTRICAL SHOP EQUIPMENT AND PRACTICE I he electrical shop and armature room occupy a Moor space15
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