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Indicating Apparatus for the Spark Plugs of Hydrocarbon Engines.

Description: Patent for an indicating apparatus for the spark-plugs of hydrocarbon-engines. The apparatus allows the motor vehicle driver to determine "which spark plug is connected in circuit with the timer" (lines 20-21). The patent includes illustrations and specifications.
Date: June 13, 1916
Creator: Remmert, Otto H.
Partner: UNT Libraries Government Documents Department

Improvement in Elevators.

Description: Patent for improvements in elevators, for lifting heavy objects. It includes a description and illustration.
Date: June 13, 1871
Creator: Bishop, Josiah
Partner: UNT Libraries Government Documents Department

Gas-Burner.

Description: Patent for improved gas-burning water heaters. Improvements are meant to "insure complete and economical combustion of gas and to "prevent water of condensation accumulating on the exterior of the coil of the water heater from dropping into the flame opening of the burner and casing injury to the screen thereof" (Lines 20-24).
Date: June 13, 1916
Creator: Cochran, Harry A.
Partner: UNT Libraries Government Documents Department

Controlling Device for Water Heaters.

Description: Patent for a device that controls the gas supply valve for water heaters. Patent includes illustrations and specifications.
Date: June 13, 1916
Creator: Cochran, Harry A.
Partner: UNT Libraries Government Documents Department
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