. Electric railway journal . ny carshops. The shaft of the machine is % in. in diameter by 24in. long. It is threaded for two-thirds of its lengthand turned down at one end to V2-in. in diameter forthe end bearing. A lVi-in. T can be used for the mainbearing by boring it out and bushing it with brass. Onthe driving end of the shaft is mounted a grooved pul-ley for a Vi-in. round belt. Two cones, with about 30per cent taper, the big ends being about 2 in. in diam-eter, are provided to hold the coil frames or cone next the driving wheel is solid on the shaft,while the other slides eas
. Electric railway journal . ny carshops. The shaft of the machine is % in. in diameter by 24in. long. It is threaded for two-thirds of its lengthand turned down at one end to V2-in. in diameter forthe end bearing. A lVi-in. T can be used for the mainbearing by boring it out and bushing it with brass. Onthe driving end of the shaft is mounted a grooved pul-ley for a Vi-in. round belt. Two cones, with about 30per cent taper, the big ends being about 2 in. in diam-eter, are provided to hold the coil frames or cone next the driving wheel is solid on the shaft,while the other slides easily over its threaded tightening the nut the coil spool is held secured forwinding. The end bearing is made so that the standfor it can be slipped off the end of the shaft to clearthe spools when they are to be put on or removed. With this machine the smallest relay coil can bewound and it is adaptable for any of the straight-wound Loose Pulley Air Supply through H \^Bf/!J°, ,Globe Valve J 1 < Cal Winder i Co-. RetreivingSpring Pel ton wheelmotor drivenby shop airsupply at\ pressure y///////^/////i(/////Fi6oy//////////, X Exhaust !! UNIVERAL COIL-WINDING MACHINE—AIR MOTOR ANDAUXILIARIES coils used for contactors, reversers or circuit will also take the long porcelain tubes used on head-light resistances. For driving it, a Pelton water wheelabout 9 in. in diameter using air instead of water fromthe shop air system, furnishes a cheap and efficient mo-tor, and it is easily constructed. A hardwood box, largeenough to contain the wheel and having two bearingsmounted at each side, a regular nozzle and an exhaustpipe, is all that is required. The air is controlled bya globe valve handy for the operator. For stopping andstarting the winder an idler pulley mounted on a bracketand having a foot pedal retrieved by a spring bears onthe belt and makes the machine easy of control. Wehave found that this machine has saved us many timesover its cost in reducing the
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