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4 Matching Results
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Water-Cooler.
Patent for a simple, efficient, and inexpensive portable water cooler that refrigerates the water "by the action of the air and the evaporation of the liquid or vapor percolating the material" (lines 12-14). It does not use ice and can be used in rural areas.
Date:
September 5, 1893
Creator:
Hymans, Joseph
System:
The Portal to Texas History
Boiler Cleaning Compound
Patent for a boiler cleaning compound for steam-boilers and furnaces to prevent buildup from hard water.
Date:
September 27, 1904
Creator:
López, Néstor
System:
The Portal to Texas History
Medical Compound
Patent for a medical compound which "when taken internally, is a cure for gonorrhea, gravel, dysentery, and diarrhea, and when applied externally a cure for rheumatism" (lines 12-14).
Date:
September 4, 1906
Creator:
Mendez, Jesus M.
System:
The Portal to Texas History
Car-Door.
Patent for a sliding car door and the frame that allows its sliding mechanism to work.
Date:
September 7, 1915
Creator:
Sneddon, William
System:
The Portal to Texas History