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Vacuum-Regulator for Oil-Pumps.

Description: Patent for vacuum regulator for oil pump. This device is simply constructed and easy to operate. It is an automatic cut-off in the vacuum of the pipe line to the pump.
Date: March 12, 1918
Creator: Hobb, James W.
Partner: UNT Libraries Government Documents Department

Table Attachment for Beds

Description: Patent for a table attachment for beds. This table serves as a place for medicines, food, writing, or a book rest.
Date: May 12, 1914
Creator: Thorniley, Clarence W.
Partner: UNT Libraries Government Documents Department

Pipe-Tongs.

Description: Patent for improvement upon the use of chain tongs. The invention "permits the application of a very strong rotative force" (lines 11-12), "produce rotation of a pipe in either direction" (lines 17-18), and "provides a chain tong which will not crush the pipe..." (lines 22-23).
Date: May 12, 1914
Creator: McLeod, Rueben A.
Partner: UNT Libraries Government Documents Department
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