Resource Type

Keyless Padlock (open access)

Keyless Padlock

Patent for combination padlock.
Date: December 28, 1915
Creator: Moses, Richard
System: The Portal to Texas History
Pipe System for Discharging Waste Water from Refrigerator-Cars. (open access)

Pipe System for Discharging Waste Water from Refrigerator-Cars.

Patent for a pressurized pipe system designed to discharge waste water from melted ice used to reduce car temperature including illustrations.
Date: July 28, 1914
Creator: Applewhite, James A.
System: The Portal to Texas History