21 Matching Results

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in place name: "United States - Texas - Harris County - Houston"  
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Wrench.

Description: Patent for a wrench with a head having a pair of rigid jaws to engage the object. One unique use of this wrench is that it can tighten any threaded joint beyond the degree of tightness that can be obtained by pulling the handle of an ordinary wrench in the usual manner.
Date: July 19, 1921
Creator: Duda, Oswald
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Wall Construction

Description: Patent for a relatively simple constructed wall that is built using concrete slabs. It is constructed in a manner that requires less material thus resulting in a wall that is hollow all the while providing sufficient strength to hold weight and pressure. Includes illustrations.
Date: April 19, 1921
Creator: Needham, Edward F.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Washing-Machine

Description: Patent for an improved clothes containing basket within washing machines that is longer-lasting and less likely to become imbalanced. The device increases agitation of clothes and water.
Date: April 19, 1921
Creator: Seifert, John W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Reamer.

Description: Patent for rotary reamers for progressively enlarging holes in pilot drills, particularly roller disk type reamers used in oil, water, or mining applications.
Date: April 19, 1921
Creator: Humason, Granville A.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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