UNT Libraries Government Documents Department - 6 Matching Results

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Automatic Control for Gas Water-Heaters.

Patent for improvements to "a gas control for instantaneous gas water heaters" (lines 9-10), including illustrations and instructions.

Date: June 17, 1919

Creator: Hamilton, Paul H.

Item Type: Patent

Automatic Gas Control for Gas Water-Heaters.

Patent for an automatic control for instantaneous water heaters to control a supply of water and simultaneously an automatic supply of gas to the heater.

Date: October 7, 1919

Creator: Hamilton, Paul H.

Item Type: Patent

Cotton-Ginning Machinery.

Patent for cotton ginning machinery, which separates cotton faster and more cleanly and continuously feeds cotton into the saws.

Date: June 14, 1910

Creator: Wilson, Ralph E.

Item Type: Patent

Electric Switch For Street-Railways.

Patent for an electric switch for street railways. This invention allows for the operation of switches of the track from the car, so the operator can turn the switches without stopping the car.

Date: January 30, 1906

Creator: Posey, James A.

Item Type: Patent

Patent for drying briquets. Briquets are placed on a track, which is then rotated by chains as it dries, before falling into a stack in a chamber. This allows for faster, more even drying of the briquets before use.

Date: July 20, 1917

Creator: Baker, Burke

Item Type: Patent

Needle for Hand-Embroidery and Similar Work.

Patent for an embroidery needle that is inexpensive to manufacture and allows for rapid stitching.

Date: November 30, 1920

Creator: Pade, George V. & Neitzel, Conrad T.

Item Type: Patent

UNT Libraries Government Documents Department - 6 Matching Results

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Automatic Control for Gas Water-Heaters.

Automatic Gas Control for Gas Water-Heaters.

Cotton-Ginning Machinery.

Electric Switch For Street-Railways.

Means for Drying Briquets

Needle for Hand-Embroidery and Similar Work.