Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics (1892)
Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 481
n comingbetween the two journals. To avoid the possibility of locking the nut to the lead-screwwhile the gear and rack are connected, or vice versa, a safety-pin is connected with the yoke K,and the hub of the lever that operates the lead-screw nuts has in it a hole to which this pin 460 LATHES,… … Fig. 4.—Carriage and feed-table. the yoke so that the pinion wil! gear with the rack, the pin will come in contact with theplain surface of the huh, {irevonting its accoiupli.shment. When the di.sk is turned to theposition in which it stands when the nut is off the screw, the hole is in alignment…
Mechanical engineering
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