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Sulfuric-Acid Process of Extracting Precious Metals From Solutions

Description: Patent for "new and useful Imporivements in Processes of Recovering Precious Metals from Their Solutions, and which I designate as the 'Sulfuric-Acid Process;' [...] to separate the precious metals from their cyanid solutions in a rapid and thorough matter and to recover the precious metals from solutions thereof." (lines 5-8 & 22-26)
Date: June 23, 1903
Creator: Bahn, Gustavus A.
Partner: UNT Libraries Government Documents Department

Oil Burner

Description: Patent for an oil burner. Invention relates for the use with fireboxes of domestic ranges and stoves.
Date: June 23, 1903
Creator: Rumple, James F.
Partner: UNT Libraries Government Documents Department

Felt Picker

Description: Patent for a felt picker. This invention is for use of piano-workmen in making flexible the felts in piano-actions.
Date: June 23, 1903
Creator: Bell, William Jackson
Partner: UNT Libraries Government Documents Department

Plow Bar and Regulating Lever

Description: Patent for a plow bar and regulating lever. This invention is to improve regulating depth of plow.
Date: June 23, 1903
Creator: Horton, James L. & Bennett, Dosier A.
Partner: UNT Libraries Government Documents Department

Disk Plow

Description: Patent for a disk plow. This design of plow provides multiple blades and constructed to be less dangerous to the operator.
Date: June 23, 1903
Creator: Creager, James A.
Partner: UNT Libraries Government Documents Department

Combined Planter, Cotton Chopper, and Cultivator

Description: Patent for the improved construction, arrangement, and combination of parts of a combined planter, cotton chopper, and cultivators.
Date: June 23, 1903
Creator: McKenzie, John D.
Partner: UNT Libraries Government Documents Department

Double Acting Pump

Description: Patent for a double action pump. "This invention relates to improvements in double-acting pumps; and its object is to provide a vertical double-acting pump in which provision is made for automatically exhausting the air from the upper portion of the piston-chamber" (line 11-16) illustration included.
Date: June 23, 1903
Creator: Hall, S. N.
Partner: UNT Libraries Government Documents Department

Thill Coupling

Description: Patent for a thill coupling. This invention is designed to be placed between the rear end of the thill and the connection of the thill with the axle of a vehicle to reduce rattling noises.
Date: June 23, 1903
Creator: Trainer, Edgar
Partner: UNT Libraries Government Documents Department

Pump

Description: Patent for a pump and is designed to be of simple construction and production.
Date: June 23, 1903
Creator: Hall, Sam N.
Partner: UNT Libraries Government Documents Department

Apparatus for Sizing Ores or for Other Uses

Description: Patent for an apparatus for sizing ores. This invention is to "accomplish and accurate or approximately accurate sizing or classification of ores or granular materials in a rapid and thorough manner and with as large a capacity as possible" (line 15-19) illustrations included.
Date: June 23, 1903
Creator: Swain, Seth Russell
Partner: UNT Libraries Government Documents Department
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