UNT Libraries Government Documents Department - 29 Matching Results

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Friction-Clutch

Description: Patent for friction clutch (used in automobiles) that would allow better control over rotary parts, even when driving in reverse. The improved control is partially due to the inclusion of a tension device unique to this clutch.
Date: July 21, 1914
Creator: Barry, David Redmond
Item Type: Refine your search to only Patent

Saw-Hammering Machine.

Description: Patent for a simple hammering machine for circular saws that "carries the saw in such a way that it may be held at any necessary or desired angle to suit the operator, which has a sliding anvil adapted to be adjusted so as to come opposite the various parts of the saw, which is provided with an adjustable hammer adapted to be brought opposite the anvil, which is constructed so as to cause a blow to expand both sides of the saw equally, and which in general is intended to facilitate the quick an… more
Date: July 18, 1893
Creator: Dillon, Thomas H.
Item Type: Refine your search to only Patent

Wave Motor

Description: Patent for an improvement to wave motors, intended to use "the force of waves as motive power for operating machinery" (lines 9-10).
Date: July 11, 1911
Creator: Ford, William W.
Item Type: Refine your search to only Patent

Hen-Nest

Description: Patent for an improved hen nest. This nest prevents hens from roosting when the keeper chooses by the ability to turn the nests from horizontal to vertical.
Date: July 25, 1916
Creator: Hebert, Joseph
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Hoisting Drum.

Description: Patent for an invention that "relates to improvements in hoisting drums" (line 15-16). Structure, objective, and illustrations of hoisting drums are included.
Date: July 3, 1917
Creator: Howard, Henry Fischer
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Feed-Cooler

Description: Patent for a feed-cooler "relates to driers, and more especially to those having vertical shafts; and the object of the same is to produce a machine for cooling and drying molasses feed, hot grain or any granular feed substance or material containing heat or moisture or both" (lines 12-18).
Date: July 6, 1915
Creator: Josey, Jackson E. & Miller, Rudolph C.
Item Type: Refine your search to only Patent

Manufacture of Aluminum Chlorid

Description: Patent for the manufacture of aluminum chlorid and the method of making aluminum chlorid to produce vapors that are subsequently condensed in any suitable manner. This patent is important because it is advantageous to work with a producer of gas made at as high a temperature. This is because of the greater amount of sensible heat it carries forward for use in the reaction.
Date: July 1, 1919
Creator: King, George H.
Item Type: Refine your search to only Patent

Electric-Current Relay

Description: Patent for Electric-Current Relay to allow capability of use with either a direct or alternating current. This is adapted for economical use in constant temperature apparatus. Further, this technology avoids the possibility of "sticking of relay movable contacts".
Date: July 19, 1921
Creator: Lorenz, Charles O.
Item Type: Refine your search to only Patent

Elevator and Conveyer for Concrete-Mixers.

Description: Patent for improvements in elevators and conveyers for concrete-mixers “whereby the mixed concrete can be fed to the wall mold at different elevations, the elevator being extended and the conveyer raised for constructing the successive stories of the building.” (Lines 17-21) Illustration is included.
Date: July 1, 1913
Creator: Miller, Frederick
Item Type: Refine your search to only Patent

Dry Closet.

Description: Patent for improvements in dry closets with an illustration. The improvements patented are specific to separating "fecal matter and urine" (line 15).
Date: July 15, 1919
Creator: Moore, Joseph B.
Item Type: Refine your search to only Patent

Rice Harvester

Description: Patent for an improved rice grain harvester. This harvester gather only grain, not straw or stalks, in order to prevent the grain from gathering dampness or moisture over long periods of time.
Date: July 11, 1916
Creator: Motte, James N. & Katz, Adam
Item Type: Refine your search to only Patent
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