UNT Libraries Government Documents Department - 48 Matching Results

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Heater.

Description: Patent for a heater adapted for use in an internal combustion engine for the purpose of assisting the vehicle to start in cold weather.
Date: May 27, 1919
Creator: Pirtle, Claiborne Clinton
Item Type: Refine your search to only Patent

Ratchet Pipe Cutter

Description: Patent for improvements to a ratchet pipe cutter, which includes an adjustment system to allow for pipes to "approximately quickly adjusted to different sizes of pipe and subsequently automatically moved toward the cutting roller"(lines 11-13).
Date: May 27, 1919
Creator: Hestand, Rue S.
Item Type: Refine your search to only Patent

Peanut Digger.

Description: Patent for new and useful improvements to a machine for harvesting or digging peanuts, including instructions and illustrations.
Date: May 15, 1917
Creator: Amos, Thomas E. & Abernathy, George J.
Item Type: Refine your search to only Patent

Trolley-Harp.

Description: Patent for improvements to the efficiency of trolley harps by changing how the currents that power "overhead type electric car systems" (lines 13-14) are conducted.
Date: May 15, 1917
Creator: Carmack, James H.
Item Type: Refine your search to only Patent

Facing-Blocks

Description: Patent for facing blocks used as a veneer or facing with wood or metal framework. In using "uncemented tongue and groove" joints, the facing blocks allows for adjustment due to settling of the frame and features durable and efficient construction.
Date: May 25, 1915
Creator: Neimeyer, Frederich George
Item Type: Refine your search to only Patent

Poultry-Crate

Description: Patent for a poultry-crate with new and useful specifications for a "light but very durable constriction that can be very readily washed out when desired" (lines 27-29).
Date: May 11, 1915
Creator: White, William R.
Item Type: Refine your search to only Patent

Card Holder

Description: Patent for improvements made to card holders, mostly for handbags and other cases much like luggage tags today. The patent describes and illustrates improved design and construction so they can be manufactured at an economic price.
Date: May 19, 1914
Creator: Grabendike, Clyde C.
Item Type: Refine your search to only Patent

Trolly Wheel and Harp.

Description: Patent for trolley wheels, where "the transmission of the current through the wheel to the harp is maintained at the maximum and the necessary wear of the relatively movable parts reduced to a minimum" (lines 11-15).
Date: May 7, 1912
Creator: Neighbour, William W.
Item Type: Refine your search to only Patent

Relay.

Description: Patent for an electric relay "which is normally actuated by weak currents, and adapted when abnormally energized by heavier currents to shift the local current from one connection to another in order to prevent the relay armature from sticking" (lines 10-15).
Date: May 18, 1909
Creator: Rice, Hugh C.
Item Type: Refine your search to only Patent

Journal-Box.

Description: Patent for a journal or wheel axle box that allows the wheel to rotate freely and reduces friction stopping the boxes from becoming hot.
Date: May 7, 1907
Creator: Neighbor, William W.
Item Type: Refine your search to only Patent

Combination-Tool

Description: Patent for a combination-tool which includes a putty-knife and hammer and claw. The idea is that when one tool is in use, the other portion can be closed away.
Date: May 22, 1906
Creator: Carlton, Thomas R.
Item Type: Refine your search to only Patent
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