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An instrument invented by Professor Wheatstone, consisting of a reflecting knob at the end of a vibrating rod or thin plate, for making visible, in the motion of a point of light reflected from the knob, the paths or curves corresponding with the musical notes produced by the vibrations.

An instrument invented by Sir David Brewster, which contains loose fragments of colored glass, etc., and reflecting surfaces so arranged that changes of position exhibit its contents in an endless variety of beautiful colors and symmetrical forms. It has been much employed in arts of design. Shifting like the fragments…

A process for the manufacture of steel armor plates, invented or practiced by Krupp, the details of which are secret. It is understood to involve the addition of chromium as well as nickel to the metal, and to include a treatment like that of the Harvey process with unknown variations or additions. The product is menti…

ogen on being led over platinum sponge; -- named after the German chemist Döbereiner, who invented it. Called also philosopher's lamp. -- Flameless lamp, an aphlogistic lamp. -- Lamp burner, the part of a lamp where the wick is exposed and ignited. Knight. -- Lamp fount, a reservoir for oil, in a lamp. -- Lamp jack…

of Paris in the twelfth century, who wrote largely in this measure, though he was not the inventor. The following line is an example: Gloria factorum temere conceditur horum.

coating, for the purpose of charging it with electricity. It is so named from having been invented in Leyden, Holland.

A curve of the fourth degree, invented by Pascal. Its polar equation is r = a cos + b.

a fictitious narrative, in prose or verse, are effected. The machinery, madam, is a term invented by the critics, to signify that part which the deities, angels, or demons, are made to act in a poem. Pope.

A waterproof outer garment; -- so called from the name of the inventor.

A feigning to believe, as in the play of children; a mere pretense; a fiction; an invention. "Childlike make-believe." Tylor. To forswear self-delusion and make-believe. M. Arnold.

ess for decarbonizing cast iron. So called from Pierre Manhès, a French metallurgist, who invented it.

To oppose as equal; to contend successfully against. Eternal might To match with their inventions they presumed So easy, and of his thunder made a scorn. Milton.

A kind of machine gun; -- named after its inventor, Hiram S. Maxim.

cent of copper, and forty of zinc. Sometimes a little lead is added. It is named from the inventor. -- Prince's metal (Old Chem.), an alloy resembling brass, consisting of three parts of copper to one of zinc; -- also called Prince Rupert's metal.

An autographic stencil copying device invented by Edison.

To invent; to forge; to fabricate; to fashion. Titles... of such natures as may be easily minted. Bacon. Minting mill, a coining press.

ervative against poison; an alexipharmic; -- so called from King Mithridates, its reputed inventor. [Love is] a drop of the true elixir; no mithridate so effectual against the infection of vice. Southey.

A process, invented by P. Ostberg, for producing malleable iron castings by melting wrought iron, to which from 0.05 to 0.1 per cent of aluminium is added to lower the melting point, usually in a petroleum furnace, keeping the molten metal at the bubbling point until it becomes quiet, and then pouring the molten metal…

odiment of an ideal; sometimes, a drawing; a plan; as, the clay model of a sculpture; the inventor's model of a machine. [The application for a patent] must be accompanied by a full description of the invention, with drawings and a model where the case admits of it. Am. Cyc. When we mean to build We first survey the pl…

A vessel in which glasses are washed; -- so called from the name of the inventor. New things produce new words, and thus Monteth Has by one vessel saved his name from death. King.