. Railway mechanical engineer . rivet that iseither too hot or too cold. At the first opportunity the new apprentice should betaken to a grindstone or emery wheel and be shown how atwist or common flat drill should be ground. Seventy-fiveper cent of the boilermakers have to grind their own drills insmall shops and roundhouses. He should be shown that flatchisels should have the corners rounded off, so that thesheet next to the one that is being chipped will not be gashed1-16 in. deep. The reason for clearance on cape and roundnose chisels should also be explained. When it comes to putting shee
. Railway mechanical engineer . rivet that iseither too hot or too cold. At the first opportunity the new apprentice should betaken to a grindstone or emery wheel and be shown how atwist or common flat drill should be ground. Seventy-fiveper cent of the boilermakers have to grind their own drills insmall shops and roundhouses. He should be shown that flatchisels should have the corners rounded off, so that thesheet next to the one that is being chipped will not be gashed1-16 in. deep. The reason for clearance on cape and roundnose chisels should also be explained. When it comes to putting sheets together, the best job to>tart him on is petticoat pipes. Some day he will have tobuild a boiler shell and he will then know enough not toget the seams flat. He cannot depend on steam pressureto make a flat scam in a boiler shell assume a true circularcurve. When it comes to laying out work, the apprentice shouldbe told to get a good book on that subject, some drawingtools and to study at home. While he should be put with. Pneumatic Machine for Riveting Coupler Yokes through a wrought iron fulcrum arm working in an arbor, a good layout man he should also be given to understand built of bar iron. that on this particular job he must do more than listen to This machine was designed and built at the Clifton Forge After it Had been put into use, it was found to be If placed with a first-class man on patch work, it will handy in straightening out couplers having the shanks or not be long before the apprentice will find that all the holes lugs bent. The bent parts are heated and the coupler placed cannot be put in flanged patches until the patches are in in the machine and power applied. place, iron to iron. He should be put with a man who will December, 1916 R \ii.\V VJ MECHANICAL ENGINEER 657 allow him tn handle the tools himself. In this way hewill gain confidence and learn kinks that it would take hima long time to pick u|> otherwise. Before starting a
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
