. Railway mechanical engineer . long before he has completed the required time of hisapprenticeship, and can be tried out alone on a job. The realtest of a good mechanic is the way he handles his work andwhile a boy may be a perfect apprentice, he may be a failure asa mechanic when he is placed on his own resources. The bestway to help the older apprentice is to let him work alone, or givehim a helper and try him out on regular mechanics work. Anapprentice will not have some experience on every class ofmechanical work while serving his time; as an apprentice he istaught only the simple rules o
. Railway mechanical engineer . long before he has completed the required time of hisapprenticeship, and can be tried out alone on a job. The realtest of a good mechanic is the way he handles his work andwhile a boy may be a perfect apprentice, he may be a failure asa mechanic when he is placed on his own resources. The bestway to help the older apprentice is to let him work alone, or givehim a helper and try him out on regular mechanics work. Anapprentice will not have some experience on every class ofmechanical work while serving his time; as an apprentice he istaught only the simple rules of his trade. To be a successfulmechanic he must learn to use his head and to keep his eyes open. In summing up, if the boy is started right and is taught toobserve things and is treated like a man, it is the best and onlyway to help him become successful in his chosen trade. EXHAUST PASSAGE DRAIN VALVE The illustration shows a simple automatic drain valve foruse in cylinder exhaust passages which was developed by A. L. zPpeTap. the upper one of wliicli is attached either to the wall of thecylinder casting or to a pipe connecting it with the exhaustpassage. Into this is threaded the other section which containsthe outlet from the valve and a coil spring of light brass wirejust strong enough to lift the check valve from its seat butpermitting it to close positively under steam pressure. Thevalve has a lift of about ^ in., which is limited by lugs cast inthe upper part of the top section of the casing. The valve isguided by a Yi-m. stem passing through the lower part of thecasing and also by four wings just under the valve disc. PNEUMATIC HAMMER .• ingenious and serviceable air hammer has been devised byWilliam Baird, shop superintendent of the Plattsmouth, Neb.,car shops of the Chicago, Burlington & Quincy, for weldingliolts and for hammering out scrapped rods to rods of smallerdiameter. The photograph shows one of these hammers locatedadjacent to a furnace and used for welding
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
