UNT Libraries Government Documents Department - 44 Matching Results

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Chuck.

Description: Patent for chucks that secure pipes, preventing movement when being cut or threaded, including illustrations.
Date: December 27, 1921
Creator: Castanie, William
Item Type: Refine your search to only Patent

Power-Hammer.

Description: Patent for a power hammer that can utilize any power source and only needs one person to operate it. The design also uses less parts, making it more affordable.
Date: December 13, 1921
Creator: Karlson, Eric Fritjof
Item Type: Refine your search to only Patent

Traveling Block.

Description: Patent for a traveling block construction. The invention resides in the combination and arrangement of parts and in the details of construction that provide a novel form of nut to be positioned on the ends of the supporting shaft of the block, the nuts being hollowed out to provide oil chambers for supplying the shaft with a lubricant.
Date: December 16, 1920
Creator: Boykin, Burwell Jr.
Item Type: Refine your search to only Patent
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