Month

Language

Valve (open access)

Valve

Patent for an automatic valve for use upon hydraulic or suction dredges to prevent sore material such as clay, sand and mud from preventing the efficient use of the dredge sure to the closing of heavy material in the mouth of the dredge. The valve is intended to supply water to flush out the mouth of the dredge.
Date: June 12, 1917
Creator: Miller, Henry L.
System: The Portal to Texas History
Electric Signal (open access)

Electric Signal

Patent for an alarm device to indicate overheating of an internal combustion engine.
Date: June 1, 1915
Creator: Lièvre, Joseph
System: The Portal to Texas History
Shirt. (open access)

Shirt.

Patent for an improvement in shirts which have the ability to be reversed in the event that one side should become soiled; includes illustration.
Date: June 22, 1915
Creator: Miles, John J. & Williams, Jerome A.
System: The Portal to Texas History