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Bucyrus-Erie 50-R, 55 feet high and housing a massive drill, was used in the successful rescue of two miners during the 1963 Sheppton, Pennsylvania mining disaster. [17] 1250-B/W and 1260-W walking draglines, with buckets between 33 and 45 cu yd (25 and 34 m 3).
A contract for the construction of four blast furnaces each outputting 500 tons per day, [13] totaling 22 ft × 85 ft (6.7 m × 25.9 m), was awarded to the Ritter-Conley Mfg. Co. in December 1906, which at the time had blast furnaces of the same dimensions under construction for Indiana Steel Co. at Gary. The new furnaces included modern skip ...
Some varieties of flumes are used in measuring water flow of a larger channel. When used to measure the flow of water in open channels, a flume is defined as a specially shaped, fixed hydraulic structure that under free-flow conditions forces flow to accelerate in such a manner that the flow rate through the flume can be characterized by a level-to-flow relationship as applied to a single head ...
Indiana County was an active hub of the Underground Railroad. [7] At least 90 county residents are known to have been conductors or agents, guiding fugitive slaves between hiding places on their way to freedom in Canada. [10] In the 21st century, Indiana County comprises the Indiana, PA Micropolitan Statistical Area.
A simple open center hydraulic circuit. An excavator; main hydraulics: Boom cylinders, swing drive, cooler fan, and trackdrive Fundamental features of using hydraulics compared to mechanics for force and torque increase/decrease in a transmission. Hydraulic machines use liquid fluid power to perform work. Heavy construction vehicles are a ...
A chute, also known as a race, flume, cat, or river canyon, is a steep-sided passage through which water flows rapidly. Akin to these, man-made chutes, such as the timber slide and log flume, were used in the logging industry to facilitate the downstream transportation of timber along rivers.
A hydraulic fracturing operation at a Marcellus Shale well. Hydraulic fracturing of shales goes back at least to 1965, when some operators in the Big Sandy gas field of eastern Kentucky and southern West Virginia started hydraulically fracturing the Ohio Shale and Cleveland Shale, using relatively small fracs. The frac jobs generally increased ...
Hydraulic Flood Retention Basin (HFRB) View from Church Span Bridge, Bern, Switzerland Riprap lining a lake shore. Hydraulic engineering as a sub-discipline of civil engineering is concerned with the flow and conveyance of fluids, principally water and sewage. One feature of these systems is the extensive use of gravity as the motive force to ...