Resource Type

Funnel and Gage. (open access)

Funnel and Gage.

Patent for a funnel and gage with a mechanism used to indicate "when the proper amount of water has been inserted in the battery" (lines 14-15).
Date: October 16, 1917
Creator: Burkett, Joseph Benjamin
System: The Portal to Texas History
Heat-Producing Process. (open access)

Heat-Producing Process.

Patent for Improvements in Heat-Producing Processes by way of "process of producing heat and conserving heat..." for use in various types of furnaces (lines 9-10).
Date: October 15, 1918
Creator: Bone, David R.
System: The Portal to Texas History