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Interliner for Tires

Description: Patent for a liner that goes inside of an inner tube that is inside of a pneumatic tire. The device works to help slow flats in tires and improve the structure of a tire.
Date: October 7, 1919
Creator: McDonald, John P.
Partner: UNT Libraries Government Documents Department

Mechanism for Rotating Earth-Drill Bits.

Description: Patent for a mechanism for rotating earth-drill bits that introduces an up and down motion.
Date: October 7, 1919
Creator: Nippert, Worley
Partner: UNT Libraries Government Documents Department

Tool Holder.

Description: Patent for a device to hold a tool with a beveled edge against an emery wheel for the purpose of sharpening. The tool holder can be adjusted and used for multiple tool types.
Date: October 7, 1919
Creator: Quillin, Alphonso L.
Partner: UNT Libraries Government Documents Department

Projecting-Machine.

Description: Patent for improvements to a projector that relate to advertising. The inventor references adjustments to a previous patent, No. 1069521 from August 5, 1913. Adjustments include making the device more accurate and reliable, and to adapt it to be able to display opaque surfaces, postcards, and other printed items during any time of day. Additionally, the revoluble slide magazine has a mechanism that allows it to operate continuously without assistance from the operator.
Date: October 7, 1919
Creator: Bernard, Oscar C.
Partner: UNT Libraries Government Documents Department

Tire Structure

Description: Patent for a tire structure that eliminates circumferential differences and also renders a simpler, less expensive model for tire construction.
Date: October 7, 1919
Creator: Smith, Jesse G.
Partner: UNT Libraries Government Documents Department

Draft-Equalizer.

Description: Patent for Draft Equalizer. Patent states this invention "relates to the new and useful improvements in draft-equalizers" (lines 10-11). Includes instructions and illustrations.
Date: October 7, 1919
Creator: Dudley, Thomas J. & Bryant, Marvin H.
Partner: UNT Libraries Government Documents Department

Fishing-Rod Handle.

Description: Patent for a fishing rod handle that also functions as a pistol.
Date: October 7, 1919
Creator: Key, Henry C.
Partner: UNT Libraries Government Documents Department

Automatic Gas Control for Gas Water-Heaters.

Description: 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.
Partner: UNT Libraries Government Documents Department
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