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: M- M. M1 M2 M3 M< Ma Mb Mc Md Me Mf Mg Mh Mi Mk Ml Mm Mn Mo Mp Mr Ms Mt Mu Mv Mw Mx My
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CIDE DICTIONARY
manoeuver | manoeuvrability | manoeuvrable | manoeuvre | manoeuvrer | manograph | manometer | manometric | manometrical | manor | manor hall

manograph

CIDE DICTIONARY

manographn. [Gr. thin, rare + -graph: cf. F. manographe.].
     An optical device for making an indicator diagram for high-speed engines. It consists of a light-tight box or camera having at one end a small convex mirror which reflects a beam of light on to the ground glass or photographic plate at the other end. The mirror is pivoted so that it can be moved in one direction by a small plunger operated by an elastic metal diaphragm which closes a tube connected with the engine cylinder. It is also moved at right angles to this direction by a reducing motion, called a reproducer, so as to copy accurately on a smaller scale the motion of the engine piston. The resultant of these two movements imparts to the reflected beam of light a motion similar to that of the pencil of the ordinary indicator, and this can be traced on the sheet of ground glass, or photographed.  [Webster 1913 Suppl.]

For further exploring for "manograph" in Webster Dictionary Online


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