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Well-Liner Clamp.

Description: Patent for a well-liner clamp for oil, gas, and other similar wells that prevents the well from caving in. The well-liner clamp is made of resilient material to hold in place, contracts while being placed into the well, and can be released after being placed into the well to expand to fit the walls of the well.
Date: May 31, 1921
Creator: Bigelow, Robert J.
Partner: UNT Libraries Government Documents Department

Stock-Chute for Dipping-Vats.

Description: Patent for new improvements that allow for easier transition of animals from a stock-chute into a dipping vat because the "animal will overcome the effect of the counterbalancing weight and will cause the discharge end of the chute to move downwardly precipitating the animal into the vat or trough" (lines 20-26) including instructions and illustrations.
Date: May 31, 1921
Creator: Burt, Clement P.
Partner: UNT Libraries Government Documents Department

Templet.

Description: Patent for templets or steel models used in building ships. The steel can be easily shaped into parts.
Date: May 31, 1921
Creator: Nies, Gershom John
Partner: UNT Libraries Government Documents Department

Power-Transmitting Means

Description: Patent for improving power-transmitting means. The patent reduces the ratio of rotary to reciprocatory movement, with illustrations.
Date: May 31, 1921
Creator: Benson, Madison H.
Partner: UNT Libraries Government Documents Department

Sectional Rim

Description: Patent for a sectional rim, which provides a sectional demountable tire rim with interlocking means to easily actuate and separate so that the tire can be removed from or applied to the rim.
Date: May 31, 1921
Creator: Williams, Harry S.
Partner: UNT Libraries Government Documents Department

Washing-Machine.

Description: Patent for a washing machine that launders articles of clothing. The machine has a plunger that causes rotary movement allowing cleaning fluid to reach all articles, including illustrations.
Date: May 31, 1921
Creator: Carroll, Houston M., Sr.
Partner: UNT Libraries Government Documents Department

Oil Pump

Description: Patent for an oil pump that may be attached to a barrel or container and dispense liquid in predetermined quantities.
Date: May 31, 1921
Creator: Hughes, Stanley R.
Partner: UNT Libraries Government Documents Department

Fluid-Conditioning Apparatus.

Description: Patent for an air conditioning apparatus that provides "new and improved means for moistening and cooling air," including the "collection and accumulation" of the cooling fluid (lines 10-12).
Date: May 31, 1921
Creator: Lindauer, William A.
Partner: UNT Libraries Government Documents Department

Flytrap.

Description: Patent for a "new and improved fly trap arranged to insure [sic] a proper transfer of the flies or other insects" in such a way that the trap bait is preserved for repeated use (lines 14-16).
Date: May 31, 1921
Creator: Wallace, William Simpson
Partner: UNT Libraries Government Documents Department

Pneumatic Tire.

Description: Patent for improved pneumatic tires for motor vehicles that will prevent deflation when punctured.
Date: May 31, 1921
Creator: Williams, Harry S.
Partner: UNT Libraries Government Documents Department
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