7 Matching Results

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Hydraulic Swivel

Description: Patent for the hydraulic swivel. This is an improvement to the hydraulic swivel that already exists. It involves "the rotary well-drilling machines, to permit the flow of water to the point of the drill." (Black)
Date: December 1, 1914
Creator: Black, Lee J.
Partner: UNT Libraries Government Documents Department

Piano Key Bushing.

Description: Patent for an improved piano key bushing that designed to reduce sticking of the keys. Important parts of the bushing are made of metal and given ample room to expand without causing friction that might cause the keys to stick.
Date: August 25, 1914
Creator: Rogers, Karl C.
Partner: UNT Libraries Government Documents Department

Straightening-Machine

Description: Patent for an improved straightening machine to "straighten pipes, rails, and allied structures in an expeditious manner."
Date: May 12, 1914
Creator: Boykin, Burwell, Jr.
Partner: UNT Libraries Government Documents Department

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
Partner: UNT Libraries Government Documents Department

Meter.

Description: Patent for a meter measuring the flow of liquid with a dial indicating gallons per hour for use in vehicles with internal combustion engines.
Date: April 21, 1914
Creator: Carroll, William G.
Partner: UNT Libraries Government Documents Department

PUMP CYLINDER

Description: Patent for a removable liner for a pump cylinder bore, including illustrations.
Date: February 24, 1914
Creator: Black, Lee J.
Partner: UNT Libraries Government Documents Department

Mowing Machine

Description: Patent for various refinements in mowing machines.
Date: August 25, 1914
Creator: Caruthers, Edgar
Partner: UNT Libraries Government Documents Department