7 Matching Results

Results open in a new window/tab.

Baby Net Frame. (open access)

Baby Net Frame.

Patent for a frame that can support a baby net and can be collapsed for easy storage. The frame also features components that prevent collapse and provide stability when in use.
Date: June 6, 1922
Creator: Akers, Blessie E.
System: The Portal to Texas History
Refrigerator (open access)

Refrigerator

Patent for a refrigerator made of wood with an inner shell of reinforced concrete and vacuum chamber or metal jacket. "The inner concrete shell is divided into four separate chambers, the former containing ice and the other three being adapted to contain food." (lines 61-64)
Date: April 11, 1922
Creator: Knutson, William K.
System: The Portal to Texas History
Counter. (open access)

Counter.

Patent for improvements to store counters that can be easily constructed in whatever form fits the user.
Date: July 18, 1922
Creator: Jones, Laurence E.
System: The Portal to Texas History
Spark Plug. (open access)

Spark Plug.

Patent for a spark plug with the capacity to afford an intense spark, prevent leakage of current, and to preclude fouling of the plug in carbon.
Date: October 24, 1922
Creator: Bronson, Fred L.
System: The Portal to Texas History
Pump (open access)

Pump

Patent for improvements to pumps in working barrels, packing, and packing chambers, the purpose of which is to eliminate easily worn parts and improve the efficiency of these pumps, including illustrations.
Date: November 28, 1922
Creator: Kerr, Michael A.
System: The Portal to Texas History
Refrigerator (open access)

Refrigerator

Patent for improvements for vacuum refrigerators such that cold air circulation and heat exclusion are improved, including illustrations.
Date: June 27, 1922
Creator: Knutson, William K.
System: The Portal to Texas History
Electric Battery (open access)

Electric Battery

Patent for an electric battery. This battery is designed to be more efficient and run for a longer time, without adding water.
Date: October 24, 1922
Creator: Holmes, Frank M.
System: The Portal to Texas History