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Well Drilling Mechanism

Description: Patent for a well drilling mechanism. This invention addresses the time consuming labor of screwing together sections of drilling pipe. This invention "contemplates an apparatus adapted to be attached to the frame of the rotary and operated by the driving mechanism of the rotary...screwing and unscrewing accomplished by mechanical means without manual means" (lines 38-44). Illustration included.
Date: January 14, 1913
Creator: Hall, Samuel N.
Partner: UNT Libraries Government Documents Department

Mail Bag Catcher and Deliverer

Description: Patent for a mail bag catcher and deliverer. "This invention relates to mail bag catchers and deliverers and the principle object of the invention is the provision of simple and efficient mechanism of the character which may be readily and conveniently thrown to operative and inoperative position and wherein the saddle bars and their respective guards may be aligned with the track and car" (lines 9-17). Illustrations included.
Date: January 14, 1913
Creator: Freeman, Richard J.
Partner: UNT Libraries Government Documents Department

Valve for Toilet-Basins

Description: Patent for a valve for toilet basins which is specifically placed outside the bowl to prevent the operator's hands from becoming wet when discharging the contents of the bowl.
Date: January 14, 1913
Creator: Kelley, Robert W.
Partner: UNT Libraries Government Documents Department

Rail Fastening

Description: Patent for a rail fastening device that does not require spikes. Illustrations included.
Date: January 14, 1913
Creator: Hellner, Peter Herm
Partner: UNT Libraries Government Documents Department

Slide Rule

Description: Patent for a slide rule. Illustration included.
Date: January 14, 1913
Creator: Hamby, Robert M.
Partner: UNT Libraries Government Documents Department

Carbid-Feed Valve

Description: Patent for carbid-feed valve for acetylene generators whose improved form allows for balanced feeding whether closed or open.
Date: January 14, 1913
Creator: Ballard, John S.
Partner: UNT Libraries Government Documents Department

Animal-Trap

Description: Patent for an animal trap whose specially designed cylinders play a crucial role in tiring the animal while it is struggling to escape the trap doors Ultimately, succumbing to exhaustion and hastening its drowning in the trap's water reservoir.
Date: January 14, 1913
Creator: Link, William A.
Partner: UNT Libraries Government Documents Department
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