Cotton Loading Derrick.
Description:
Patent for a new and improved cotton-loading derrick. This design consists in "[t]he portable derrick, comprising the barrow-base having the longitudinal handle-bars, the extended longitudinal and transverse base-sills, and the bearings, the rotary shaft or mast having the slot and sheave, the upper shoulder and upward-projecting stud, the cross-head, the oblique braces connecting its rear arm to the mast, and the derrick-pulleys suspended from the free arm of said cross-head, the rope passing …
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Date:
April 22, 1890
Creator:
Field, Eldon M.; Peggs, Jack & Bassinger, Steve
Item Type:
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Partner:
UNT Libraries Government Documents Department