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in creator/contributor: "Parker, R. L."  
Results: 1 - 8

Engine.

Description: Patent for a rotary engine with a coupled rotary shaft and piston. This engine uses a lubricant for keeping parts of the engine cool, including illustrations.
Date: April 29, 1919
Creator: Sheridan, Leslie M.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Furnace.

Description: Patent for a "furnace adapted especially for use outdoors for heating a wash pot or kettle" (lines 10-11) including instructions and illustrations.
Date: April 2, 1918
Creator: Cornelius, Samuel S.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Shock-Absorber.

Description: Patent for shock absorbers that are simple and can be readily used on vehicles to prevent the sudden rebounding of springs.
Date: April 18, 1916
Creator: Crowson, Jonas Henry
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Grave-Filler.

Description: Patent for a grave-filler device that holds dirt from the grave and can be shifted longitudinally from the grave and be titled vertically to refill the grave.
Date: April 25, 1916
Creator: Imhoff, Louis P.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Rotary Engine

Description: Patent for a rotary engine to be used as "a pump for liquids, as an air compressor, as a vacuum pump and for other purposes"(lines 10-12) including instructions for assembly and illustrations.
Date: April 29, 1919
Creator: Sheridan, Leslie M.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Separator.

Description: Patent for separator to be used with a plow in removing undesirable materials from dirt.
Date: April 10, 1917
Creator: Crowson, Jonas H.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Wheel.

Description: Patent for a new vehicle wheel that has adjustable tire sections that can be placed while unexpanded to create a permanent fit, and also has interlocking components to prevent movement. It includes a text description with reference illustrations.
Date: April 25, 1916
Creator: La Croix, Cicero Hamilton
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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