. American engineer and railroad journal . COMBINATION CHAIN AND BELTrD PRIVE UPON A 6-FT RADIAL DRILL.—POND MACHINE TOOL COMPANY,. plate, and drives the lower cone shaft through bevel gearswithin the column. At the left is illustrated a type of individual drive thatwas recently applied to a 6-ft. plain radial drill built by thePond Machine Tool Qompany, Plainfleld, N. J. Upon this ma-chine the cone pulleys and standard belt drive to the arm isretained in its entirety; in addition to the speed-range thusafforded a variable-speed motor is used, from which combina-tion a wide range of speeds are
. American engineer and railroad journal . COMBINATION CHAIN AND BELTrD PRIVE UPON A 6-FT RADIAL DRILL.—POND MACHINE TOOL COMPANY,. plate, and drives the lower cone shaft through bevel gearswithin the column. At the left is illustrated a type of individual drive thatwas recently applied to a 6-ft. plain radial drill built by thePond Machine Tool Qompany, Plainfleld, N. J. Upon this ma-chine the cone pulleys and standard belt drive to the arm isretained in its entirety; in addition to the speed-range thusafforded a variable-speed motor is used, from which combina-tion a wide range of speeds are available. The motor, which is a Lundellmotor at revolutions per minute,is mounted upon a bracket above theupper cone pulley, from which itdrives that cone shaft by a Renoldsilent chain. The balance of the drivedoes not differ from that on thestandard radial. The speed variationis obtained by field control, the handcontroller being located on the armas shown above the mans head; a flex-ible cable effects the connections be-tween the controller and resistancebo.\ located on the side of the engraving be
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
