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The axial flow valve, or Thayer valve, is a brass instrument valve design patented in 1978 by American inventor Orla Ed Thayer. [1] Designed with assistance from instrument maker Zigmant Kanstul, it was originally intended to replace the traditional rotary valve on the French horn , but instead revolutionized the design of trombone valve ...
Greer Spring is a first magnitude spring located in the southeast portion of the Ozark Plateau, in Oregon County in south-central Missouri within the boundaries of the Mark Twain National Forest. The spring is the second largest spring in the Ozarks , with an average discharge of 360 cubic feet (10 m 3 ) of water per second. [ 1 ]
An American Rotary Phase Converter with a Transformer. A phase converter is a device that converts electric power provided as single phase to multiple phase or vice versa. The majority of phase converters are used to produce three-phase electric power from a single-phase source, thus allowing the operation of three-phase equipment at a site that only has single-phase electrical service.
The term replacement cost or replacement value refers to the amount that an entity would have to pay to replace an asset at the present time, according to its current worth. [1] In the insurance industry, "replacement cost" or "replacement cost value" is one of several methods of determining the value of an insured item. Replacement cost is the ...
A backplate with threads may screw onto a threaded spindle nose (for lathe work) or onto an adapter plate with the same nose, to be mounted on the table of milling machines or surface grinding machines. This "threaded spindle nose" type of mounting was the typical method in the 19th century through 1930s.
Greer is an unincorporated community in Oregon County, in the U.S. state of Missouri. [1] Greer lies on Missouri Route 19 between Alton to the south-southwest and Winona to the north. [ 2 ] Route 19 crosses the Eleven Point River at Greer Crossing, approximately three miles northeast of the village. [ 2 ]
Thayer School of Engineering is named for Colonel and Brevet Brigadier Sylvanus Thayer, a Dartmouth College alumnus from the Class of 1807, who had developed an extensive engineering curriculum West Point's United States Military Academy unlike any other in the United States at the time and was known as the "Father of West Point" for his 16-year superintendency and leadership at the academy.
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