Resource Type

Improvement in Automatic Fans. (open access)

Improvement in Automatic Fans.

Patent for " a new and improved Table-Fan"
Date: April 20, 1875
Creator: Stamps, Lorenzo D.
System: The Portal to Texas History
Improvement in Processes of Reducing Asphaltum to a Liquid. (open access)

Improvement in Processes of Reducing Asphaltum to a Liquid.

Patent for a process to "reduce asphaltum to a liquid, and hold the same in a semi-fluid condition without heat, and which constitutes an entirely new article of commerce, and furnishes to the trade an article of asphaltum prepared and ready for use, without the labor, expense, and delay of melting, for paving and roofing purposes, and one most admirably adapted for use by manufacturers of varnish and japan." (Lines 8-16) Includes instructions and illustrations.
Date: April 20, 1875
Creator: Lee, Archibald K.
System: The Portal to Texas History
Improvement in Processes of Reducing Asphaltum to Liquid. (open access)

Improvement in Processes of Reducing Asphaltum to Liquid.

Patent for improved “process of reducing asphaltum to a liquid and holding the same in a fluid condition without heat or the use of dead-oils” (lines 31-34).
Date: April 20, 1875
Creator: Lee, Archibald K.
System: The Portal to Texas History