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Magneto-Telephonic Apparatus
Patent for an invention to improve transmitting vocals and other sounds. It is a magneto telephonic system based on an magnetic field of high intensity.
Date:
May 4, 1886
Creator:
Brown, Fred. H.
System:
The Portal to Texas History
Mechanical Dentistry.
Patent for new and improved mechanical dentistry. This design consists in "[a] dental plate provided with a series of holes or perforations and a continuous groove upon the upper surface of the plate communicating with the holes or perforations therein" (lines 62-65).
Date:
May 18, 1886
Creator:
Mayfield, William Dudley
System:
The Portal to Texas History
Safety Valve Attachment for Lamps.
Patent for a new and improved safety attachment for oil lamps. This design is "to permit of the escape of any gas which may be formed in the upper part of the oil-reservoir by the evaporation of its contents; and the object thereof is to provide a simple form of valve stamped from a single piece of sheet metal, with a shank adapted to be inserted through a slot in the lamp-collar and the valve afterward bent down over the valve-opening, thus presenting a valve that will be sensitive to the pressure of gas within the reservoir, and consequently insure its successful operation at all times" (lines 18-29).
Date:
May 11, 1886
Creator:
Ingle, Ezra William
System:
The Portal to Texas History