UNT Libraries Government Documents Department - 4 Matching Results

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Plow

Patent for a plow which plows two furrows simultaneously. An axle is mounted on wheels, and the two adjustable plow beams pivot from the axle so that furrow depth and the width between furrows can be adjusted. Patent includes illustrations.

Date: November 30, 1920

Creator: Henderson, Warren H.

Item Type: Patent

Soil map, Texas, Lubbock County sheet

Map displays soil types along with creeks, experiment farms, towns, schools, roads, and railroads. Includes legend and symbols.

Date: 1920

Creator: United States. Bureau of Soils.

Item Type: Map

Soil survey of Lubbock County, Texas

Text describes the climate, agriculture, and soils of Lubbock County, Texas.

Date: 1920

Creator: Veatch, J. O. (Jethro Otto) & Lewis, H. G. (Henry Guy)

Item Type: Book

Vignetting Attachment for Multiple-Exposure Cameras.

Patent for a multiple exposure camera attachment that allows multiple exposures to be made on a single plate or film, blending the exposures perfectly while avoiding harsh lines. The attachment is a telescopic tubular attachment with "a plurality of apertured light ray interrupting diaphragms" (lines 77-78).

Date: April 5, 1921

Creator: Moine, Selest E.