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 through said slot and over said sheave and to said pulleys and windlass" (lines 79-90).
Date: April 22, 1890
Creator: Field, Eldon M.; Peggs, Jack & Bassinger, Steve
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department