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Automatic Valve

Description: Patent for an automatic valve that uses a lever to open and close quickly, with illustrations.
Date: November 20, 1906
Creator: Pinkerton, Henry S.
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Partner: UNT Libraries Government Documents Department

Automatic Valve

Description: Patent for an automatic valve, "designed to automatically control the water-supply to a suitable reservoir through the operation of a float (lines 9-11), with illustrations.
Date: April 25, 1905
Creator: Pinkerton, Henry S.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Brace For Heel Sweeps

Description: Patent for a brace to be used with the class of agricultural implements known as 'heelsweeps'. Illustration included.
Date: February 12, 1907
Creator: Ingram, John H.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Attachment for Tractors.

Description: Patent for attachments in tractors. "This invention relates to tractors and has for its object the provision of means where by when the front axle and wheels of the tractor rise caused by rearing of the tractor, the clutch will be automatically disconnected and remain so until the front wheels of the tractor descend again into engagement with the ground. An important and more specific object is the provision in a tractor of a front axle formed n sections pivotally connected, one section being c… more
Date: August 30, 1921
Creator: Cholick, Joseph John
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Partner: UNT Libraries Government Documents Department

Machine-Brake.

Description: Patent for a machine brake for motorized fans that allows the speed to be regulated.
Date: July 25, 1911
Creator: Mallory, John W. & Peters, Walter C.
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Partner: UNT Libraries Government Documents Department

Animal-Poke

Description: Patent for an animal poke that is worn on the head of the animal to prevent it from breaking or going underneath wire fences.
Date: May 21, 1907
Creator: Carter, Joel F.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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