. American engineer and railroad journal . All the feeds, for horizontal traverse of column, and hori-zontal and vertical feeds of spindle head, are taken from thespindle; they are positive-geared and reversible, eight in num-ber by hand or power, and are arranged in geometrical pro-gression from .007 to % In. per revolution of the spindle. Thespindle speeds are ten In number, arranged in geometrical pro-gression from 4 to 260 rev. per mln. The gear ratio from thecone-driving shaft to spindle Is 2 2-3 to 1. and the ratio ofback gears is to 1. SPECIFICATIONS. Dinm«tiT of splndio bar 4 Ins.

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. American engineer and railroad journal . All the feeds, for horizontal traverse of column, and hori-zontal and vertical feeds of spindle head, are taken from thespindle; they are positive-geared and reversible, eight in num-ber by hand or power, and are arranged in geometrical pro-gression from .007 to % In. per revolution of the spindle. Thespindle speeds are ten In number, arranged in geometrical pro-gression from 4 to 260 rev. per mln. The gear ratio from thecone-driving shaft to spindle Is 2 2-3 to 1. and the ratio ofback gears is to 1. SPECIFICATIONS. Dinm«tiT of splndio bar 4 Ins. DlamcUr of spindle noso 6 Idb. Traversl^ of spindle 22 Ins. Vertiial adjustment of head on column 36 ln«. Horizontal adjustment of column on bed 32 Ins. Maximum distance table to center of spindle 44 Ins. Minimum distance table to center of spindle T^h I- Size of table 31 I 72 ins. Tigbt and loose pulley on countershaft 16 i 4 Ins. Speed of countershaft 228 rev. per mln. Width of belt on cone W ^4 !° Distanco i-nd of pulley shaft to e

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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering