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in subjects: "Concrete construction"  
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Tie-Mold.

Description: Patent, including illustrations, for an improved railroad tie mold relating to a previous patent (1229154) by the same inventor (Frederick C. Shearer). Objects of the invention include improved recesses, depressions, and support for interior structural elements during cement pouring.
Date: February 24, 1920
Creator: Shearer, Frederick C.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Molding Apparatus

Description: Patent for an improved model of a molding apparatus for producing blocks of concrete that is cheaper to manufacture and more durable and adjustable than its predecessor.
Date: March 20, 1920
Creator: Nelson, William E.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Concrete Building-Block.

Description: Patent for concrete building blocks, intended for use in the building of smaller structures, which are strong, easily assembled, and light weight.
Date: December 27, 1921
Creator: McEwen, James R.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Clamp

Description: Patent for clamps used in framing and forming of concrete construction. The clamps are easily removed and reused eliminating the need for wooden framing used in the past.
Date: February 24, 1920
Creator: Ferguson, William D.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Floor System.

Description: Patent for improved T-beams for floor support, which improve bonding between the beams and poured flooring and columns.
Date: April 26, 1921
Creator: Moore, Stuart B.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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