Dallas Sheet

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 1:125000
Date: 1902
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History
Wrench. (open access)

Wrench.

Patent for improvements “in axle-nut wrenches in which the wrench comprising an angular socket portion adapted to extend partially within the wheel-hub to engage the nut,” (lines 81-83) so that the nut may be unscrewed by rotating the wheel. Illustration is included.
Date: April 15, 1902
Creator: Haines, Samuel Alfred
Object Type: Patent
System: The Portal to Texas History
Percolator. (open access)

Percolator.

Patent for a percolating tea- or coffeepot that segregates the tea or coffee within the body of the pot so that the material doesn't float freely in the liquid.
Date: February 25, 1902
Creator: Seney, Joshua C.
Object Type: Patent
System: The Portal to Texas History