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Lock-Nut.
Patent for a nut lock that secures two nuts of a pair within a tubular casing through opposing threading and rotation, where one nut is immobilized and the other remaining adjustable to meet situational need. Illustrations included.
Date:
February 17, 1920
Creator:
Greer, Benjamin J.
Object Type:
Patent
System:
The Portal to Texas History
Kemp Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:62500
Date:
1920
Creator:
United States. Army. Corps of Engineers.
Object Type:
Map
System:
The Portal to Texas History