Resource Type

Month

Spring-Scale. (open access)

Spring-Scale.

Patent for improvements in spring-scales by providing novel means for measuring and indicating the quality of liquid left in or drawn from a container. (Lines 9-10) Illustration is included.
Date: April 22, 1902
Creator: Smith, John D.
System: The Portal to Texas History
Fluid- Dispensing Control (open access)

Fluid- Dispensing Control

Patent for the improvement of fluid dispensing controls. The invention provides a more efficient way to discharge fluid from a storage container by using compressed air, and valve arrangement.
Date: April 22, 1919
Creator: Catron, John J
System: The Portal to Texas History