. The railroad and engineering journal . RAILROAD AND [November, 1889. tables, traveling cranes, and other machinery where a portable and compact power is required. The accompanying illustrations show the motor for an electrichoist which has recently been built by the Sprague Electric Rail-way Motor Company of New York, for railroad shops, mills,and other places where a simple and portable hoist is desiredand where a constant potential electric current is machine was built at the Edison Machine Works, Sche- notches will run it at full speed, while turning the handle inthe opposi
. The railroad and engineering journal . RAILROAD AND [November, 1889. tables, traveling cranes, and other machinery where a portable and compact power is required. The accompanying illustrations show the motor for an electrichoist which has recently been built by the Sprague Electric Rail-way Motor Company of New York, for railroad shops, mills,and other places where a simple and portable hoist is desiredand where a constant potential electric current is machine was built at the Edison Machine Works, Sche- notches will run it at full speed, while turning the handle inthe opposite direction of rotation. The movements are verysimple, so that no expert labor is required, and any one ofordinary engines will quickly become used to the hoist and canhandle the switch and operate the motor. Especial attention has been paid in designing the machine tosecuring the qualities of durability, compactness, ease of operalion, and minimum of wear—qualities valuable in any case, but ,;^^iII[J^;,f;;;»•,,llllJ^llJ X < •J s < az •u w _1 o a o as nectady, , from designs made by engineers of wide experi-ence in electric work. The speed of the motor is controlled by an electric switch atone side, by means of which the speed can be varied at will bya single movement of the switch handle. Turning the handleto one notch will make the motor run slowly, lo the secondnotch will increase the speed, and through the lull number of especially so should it be desired to use this hoist for miningpurposes. The illustrations show that no extra room is takenup by the motor, but that everything is arrangedjto fit closelyupon the iron base-frame. The gears are all boxed in iron cases toprotect them fromdust, etc., but these cases are so made that they can be quicklyremoved should_ it be necessary 10 reach the working parts. Vol. LXIII, No. II.] ENGINEERING JOURNAL. 531 The motor is designed to give the greatest possible power withthe least weight, and has ttius
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectrailroa, bookyear1887
