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RANELAGH

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Originally appearing in Volume V22, Page 888 of the 1911 Encyclopedia Britannica.
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RANELAGH , formerly a popular resort by the See also:

Thames in See also:Chelsea, See also:London, See also:England. About 1690 the See also:land lying See also:east of Chelsea See also:Hospital, and bordering the See also:river about the point where Chelsea See also:Bridge now stands, was acquired by See also:Richard, See also:Viscount Ranelagh, later See also:earl of Ranelagh (d. 1711). He built a See also:mansion and laid out See also:fine gardens, which, in 1742, were thrown open as a proprietary See also:place of entertainment. A See also:building called the Rotunda was erected for concerts, and the gardens quickly became a favourite resort of fashionable society. Balls and masquerades, exhibitions of See also:fireworks, regattas and many other forms of amusement were provided; :'gut by the See also:close of the 18th See also:century Ranelagh was ceasing to attract the public, and in 1803 the Rotunda was closed. The buildings were removed, and the grounds became the See also:property of Chelsea Hospital. They are still included in the pleasant gardens belonging to that See also:foundation, but no traces of the popular Ranelagh are preserved. There is, however, a fashionable See also:modern See also:club of the same name. See See also:Warwick Wroth, London See also:Pleasure Gardens of the Eighteenth Century (London, 1896). RANGE-FINDER, TELEMETER Or POSITION-FINDER (Fr. telemetre; Ger. Distanzmesser; It.

Telemetro; Russ. Dalnomier; Span. Telemetro; in the See also:

United States the word telemeter is sometimes applied to the stadia used in connexion with the tacheometer), an See also:instrument, of which many varieties have been invented, for assisting the See also:gunner and the See also:infantry soldier in determining the distance or " range "1 to their See also:objective. Nearly all range-finders may be described as See also:instruments which automatically solve a triangle. Usually it is a right-angled triangle, the length of the See also:base of which is known, and one of the sides is the range it is desired to find. They are, in fact, goniometers, but the See also:angle which they measure, whether it may be at the end of the measured base, or that subtended by it, is usually expressed as a See also:function of the angle in terms of the measured base. Thus the range is recorded directly in metres or yards without calculation. It is proposed here r The word " range," from O.Fr. range, from See also:ranger, to place in a See also:row or See also:rank (rang being a variant of rant, whence Eng. rank "), meant properly a row or See also:line of See also:objects, as still in " See also:mountain-range "; the secondary meanings of an See also:area or space of ground, See also:sphere of See also:action, See also:compass, extent, distance, are derived from the verb " to range," to stretch out in a line, to extend, to move about over a given area.to describe principally the range-finding instruments in the See also:British services (1) as used in the See also:fleet; (2) by the See also:army in the See also:field; (3) in See also:harbour See also:defence; and (4) to refer briefly to range-finders, not under these heads, of See also:English and See also:foreign See also:design. 1. The See also:necessity for a range-finder afloat caused the British See also:Admiralty in 1891 to issue an See also:advertisement in the See also:press inviting inventors to produce an instrument which would, amongst other conditions, See also:record ranges with an accuracy of within 3% at 3000 yds. The resulting competition was declared in favour of a range-finder which is the See also:joint invention of See also:Professor See also:Barr of the See also:Glasgow University and Professor See also:Stroud of the See also:Yorkshire See also:College. The See also:naval range-finder consists of a See also:tube 2 which contains two telescopes.

It is carried on a See also:

frame by See also:bearings, in which the tube is See also:free to revolve about its longer See also:axis. To the frame Barrand is attached a See also:weight capable of See also:movement within a tank. Stroud. This weight balances the range-finder and frame upon See also:knife-edges. By means of the handle on the See also:left of the instrument and an See also:altitude See also:worm beneath it, the See also:motion of the tube is governed, and the line of sight is directed on the objective. By partially filling the tank with See also:water, the swinging of the weight in a seaway can be checked. The frame is supported on a See also:pedestal and can rotate in See also:azimuth upon it (fig. I).

End of Article: RANELAGH

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