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Hydrant Valve.

Description: Patent for an improved valve for hydrants that, when closed, allows water to drain out of the riser and bib, preventing freezing. Includes illustrations.
Date: September 26, 1911
Creator: Ziller, William
Partner: UNT Libraries Government Documents Department

Sinking Hydraulic Piles.

Description: Patent for new and improved sinking hydraulic piles. This design has for its object "the sinking of wooden or other piles in quicksand or ground in which the lateral pressure upon the piles practically prevents their being driven beyond a certain depth. To that end [the design] make[s] use of a jet of water supplied at the entering-point of the pile, and in connection therewith [the design] also use[s] weight applied at the upper end of the pile" (lines 8-16).
Date: September 1, 1885
Creator: Blake, Lowell Everett.
Partner: UNT Libraries Government Documents Department

Hydraulic Excavating Machine.

Description: Patent for a new and improved hydraulic excavator. This design "consists in combining a submerged propeller-wheel with a water-jet tube having a flexible connection with the supply-pipe, so as to permit the water-jet tube to rise and fall . . . and also move laterally, whereby the tube will, when it meets an obstruction, yield sufficiently to prevent breaking, jarring, or injuring any of the parts, the water-jet tube and propeller bearing such relative positions to each other that the . . . obstructions disengaged by the jet will be held in suspension . . . and carried off by the natural current" (lines 14-27).
Date: January 15, 1884
Creator: Mansfield, Samuel M.
Partner: UNT Libraries Government Documents Department

Hydraulic Motor.

Description: Patent for a new and improved hydraulic motor. This design "consists, broadly, in alternately directing a moving column of water or like fluid into two cylinders placed side by side, and containing working-pistons united at their outer ends to crank-arms connecting with the power-shaft and with a cam-wheel operating the cut-off mechanism" (lines 15-22).
Date: October 28, 1884
Creator: Woodburn, William W.
Partner: UNT Libraries Government Documents Department

Hydraulic Propulsion of Vessels.

Description: Patent for a new and improved hydraulic propulsion. This design "is to provide an improved means for the application of the jet principle in the hydraulic propulsion of vessels; and it consists in the combination, with the hull of the vessel, of one or more main or trunk tubes arranged longitudinally to the vessel and of tapering shape, largest at its front end, which is open, and provided along its length with a series of nozzles opening along the side of the vessel in rearward direction, and one or more propeller-wheels arranged within the main tube and adapted to suck water in at the front" (lines 8-20).
Date: August 9, 1892
Creator: Walker, James C.
Partner: UNT Libraries Government Documents Department

Hydraulic Milk Cooler

Description: Patent for a hydraulic milk cooler. This invention is shrouded in coolant agent absorbing material that is hydraulically applied to keep dairy products cool. Illustrations included.
Date: December 8, 1903
Creator: Womble, Zachariah C.
Partner: UNT Libraries Government Documents Department

Hydraulic Performance of Staggered-Barrel Culverts for Stream

Description: This report takes compiled information to infer guidelines to assist assessing multiple barrel staggered-systems to simulate natural stream behavior to allow solids to migrate and keeping sufficient clear-water hydraulic capacity.
Date: May 2013
Creator: Cleveland, Theodore G.; Strom, Kyle B.; Barnes, Wade J. & Dixon, Jeremy V.
Partner: UNT Libraries Government Documents Department

Hydraulic Swivel.

Description: Patent for a hydraulic swivel used with wells including instructions and illustrations.
Date: May 16, 1911
Creator: Layne, Mahlon E.; Hall, Samuel N. & Layne, Charles F.
Partner: UNT Libraries Government Documents Department

Hydraulic Drill

Description: Patent for a hydraulic drill that allows drill bits to be easily inserted and removed and locks them in place when inside the drill.
Date: May 21, 1907
Creator: Charlton, James
Partner: UNT Libraries Government Documents Department

Life-Boat.

Description: Patent for a life-boat that improves on a previous patent (No. 512,591) for a hydraulic propelling device and adapts the jet propulsion means to a life boat. The life-boat is made to have compartments that, when one compartment gets crushed, the others remain afloat. The water goes into the stove or crushed compartment and can be used to propel the boat forward. The boat also has a system of bulkheads on the roof of the boat, each independent of the others and has valved pipes. Independent oil-holding tanks connected with valved pipes to the hydraulic main pipes, and with valved pipes going outside the boat so they can be emptied in case of emergency.
Date: June 2, 1896
Creator: Walker, James C.
Partner: UNT Libraries Government Documents Department

Cotton-Press.

Description: Patent for a simple, inexpensive, and powerful plunger for a cotton-press that is directly controlled by the operator. The plunger is hydraulically powered, the pressure being created by steam.The plunger's parts are arranged so the power is multiplied.
Date: April 24, 1894
Creator: Williams, Silas Jackson
Partner: UNT Libraries Government Documents Department

Hydraulic Propulsion of Vessels.

Description: Patent for an improvement on a previous patent granted to the inventor (No. 480,533). "It consists in means for draining the bearings of the jet nozzles, and in means for ventilating and draining the ship's hold" (lines 12-16).
Date: January 9, 1894
Creator: Walker, James C.
Partner: UNT Libraries Government Documents Department

Steam-Cushion Valve.

Description: Patent for "a new and useful steam cushion valve, and its object is to provide a steam cushion valve that will sever to automatically retard the exhaust from a cylinder as the piston approaches one of the cylinder heads." (lines 9-14) including instructions and illustrations.
Date: March 23, 1915
Creator: Henry, Nelson B. & Murray, J. S.
Partner: UNT Libraries Government Documents Department

Hydraulic capacity of type-h inlets: final report

Description: Type H Inlets are frequently used by the Texas Department of Transportation as median drains for divided highways. Despite frequent use, engineers do not have adequate design information to mathematically describe the hydraulic performance of these structures. Typically, it has been assumed that IL-H-G and IL-H-L function essentially the same as roadway grates or curb inlets, but there is no basis for that assumption. Type-H drop inlets were investigated using a database from literature-reported experiments for similar inlets and physical model studies conducted at Texas Tech University (TTU). SWMM was investigated as a predictive tool by comparison to the TTU experimental results. The SWMM model was subject to very minimal calibration yet predicted performance reasonably well, especially when full inlet capture may occur. Examples of performance prediction using HEC-22, the power-law model and SWMM are presented to provide some guidance for Type-H inlet design.
Date: December 2010
Creator: Cleveland, Theodore G.; Rainwater, Kenneth A.; Smirnov, Sergey; Barnes, Wade; DaCosta, Larissa; Basnet, Bijay et al.
Partner: UNT Libraries Government Documents Department

[News Script: Parking lift]

Description: Script from the WBAP-TV station in Fort Worth, Texas, covering a news story about a demonstration of an elevated parking lift device in Dallas designed to increase the capacity of parking lots.
Date: April 26, 1956
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections

[News Script: Capacitor discharger]

Description: Script from the WBAP-TV/NBC station in Fort Worth, Texas, covering a news story about the invention of a new system called the capacitor discharger machine to form metal parts quicker for production at the Electro-Hydraulics, Inc. in Fort Worth, Texas.
Date: September 19, 1961
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections

[News Script: Accident]

Description: Script from the WBAP-TV station in Fort Worth, Texas, covering a news story about an accident on a Fort Worth highway after a hydraulic dump truck malfunctions, sending its bed flying upward and crashing into an overpass. The driver is injured, but not critically.
Date: June 11, 1956
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections