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The term free point is used to describe the delineating point between the stuck pipe and the free pipe in a pipe string. Every joint of pipe above the free point is free, meaning it can rotate freely and be moved in and out of the hole, provided it was not attached to the remaining joints of stuck pipe below the free point.
Ophicleide (/ ˈ ɒ f ɪ k l aɪ d / OFF-ih-klyde) and Contra Ophicleide are powerful pipe organ reed pipes used as organ stops. The name comes from the early brass instrument, the ophicleide, forerunner of the euphonium. The Ophicleide is generally at 16 ft pitch, and the Contra Ophicleide at 32 ft.
Charles Brenton Fisk (February 7, 1925 – December 16, 1983) was an American pipe organ builder who was one of the first to reintroduce mechanical tracker actions in modern organ building over electro-pneumatic actions.
Free point: The highest point at which the drill pipe is "free" or not stuck. Free-point tools are designed to measure torque and stretch in tubing, casings, and drill pipes and to provide accurate free pipe indication. A common method which involves deploying a wireline device to estimate the depth at which the pipe string is stuck. The pipe ...
Permanently fitted, rigid voice pipes are still in use and are generally covered with heavy lids to avoid ingress of water. The speaker has to place his mouth in the "horn" or bell-shaped end of the pipe and the receiver has to 'bend an ear' to hear what is being said. Voice pipes have generally been replaced by sound-powered telephones.
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A cat had to be rescued by fire crews after getting stuck in a drainpipe. Avon Fire and Rescue said firefighters from Clevedon, Somerset, were called out at about 10.00 GMT on Saturday.
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