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Journal-Lubricator
Patent for journal-lubricator. To provide continuous lubrication for a railway car axle.
Date:
July 3, 1917
Creator:
Urbieta, Jose Maria
System:
The Portal to Texas History
Ventilator for Refrigerators.
Patent for an improved, simple, and inexpensive ventilator for large refrigerators. It "can be readily applied to an ice box or refrigerator and so constructed that the hot air which is pressed upward is forced through the ventilator and thereby lowering the temperature of the ice box and a consequent saving of ice" (lines 23-28). The ventilator has a valve that releases hot air and automatically closes after the air is released.
Date:
July 11, 1893
Creator:
Netzer, Joseph
System:
The Portal to Texas History
Combination Tool
Patent for a combination tool. This invention combines tools for a variety uses and box to hold small items. Illustration included.
Date:
July 14, 1903
Creator:
Brunl, Louis
System:
The Portal to Texas History