steam engine indicator

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• Cutoff (steam engine) — In a steam engine, cutoff is the point in the piston stroke at which the inlet valve is closed. On a steam locomotive, the cutoff is controlled by the reverser. The point at which the inlet valve closes and stops the entry of steam into the… …   Wikipedia

• Watt steam engine — The Watt steam engine was the first type of steam engine to make use of steam at a pressure just above atmospheric to drive the piston helped by a partial vacuum. Improving on the design of the 1712 Newcomen engine, the Watt steam engine,… …   Wikipedia

• Indicator — In di*ca tor ([i^]n d[i^]*k[=a] t[ e]r), n. [L.: cf. F. indicateur.] [1913 Webster] 1. One who, or that which, shows or points out; as, a fare indicator in a street car. [1913 Webster] 2. (Mach.) A pressure gauge; a water gauge, as for a steam… …   The Collaborative International Dictionary of English

• Indicator card — Indicator In di*ca tor ([i^]n d[i^]*k[=a] t[ e]r), n. [L.: cf. F. indicateur.] [1913 Webster] 1. One who, or that which, shows or points out; as, a fare indicator in a street car. [1913 Webster] 2. (Mach.) A pressure gauge; a water gauge, as for… …   The Collaborative International Dictionary of English

• indicator diagram — Indicator In di*ca tor ([i^]n d[i^]*k[=a] t[ e]r), n. [L.: cf. F. indicateur.] [1913 Webster] 1. One who, or that which, shows or points out; as, a fare indicator in a street car. [1913 Webster] 2. (Mach.) A pressure gauge; a water gauge, as for… …   The Collaborative International Dictionary of English

• Indicator telegraph — Indicator In di*ca tor ([i^]n d[i^]*k[=a] t[ e]r), n. [L.: cf. F. indicateur.] [1913 Webster] 1. One who, or that which, shows or points out; as, a fare indicator in a street car. [1913 Webster] 2. (Mach.) A pressure gauge; a water gauge, as for… …   The Collaborative International Dictionary of English

• Indicator diagram — of engines.The diagram is simply a chart of the pressure of steam in a cylinder against the steam s volume. In 1796, Southern developed the simple, but critical, technique to generate the diagram by fixing a board so as to move with the piston,… …   Wikipedia

• Indicator diagram — Diagram Di a*gram, n. [Gr. ?, fr. ? to mark out by lines; dia through + ? to draw, write: cf. F. diagramme. See {Graphic}.] 1. (Geom.) A figure or drawing made to illustrate a statement, or facilitate a demonstration; a plan. [1913 Webster] 2.… …   The Collaborative International Dictionary of English

• richards's indicator — ˈrichə(r)dz(ə̇z) noun Usage: usually capitalized R Etymology: after Charles B. Richards died 1919 American engineer, its inventor : a steam engine indicator using a straight line reducing motion between the working piston and the recording stylus …   Useful english dictionary

• Heat engine — Thermodynamics …   Wikipedia

• gasoline engine — Most widely used form of internal combustion engine, found in most automobiles and many other vehicles. Gasoline engines vary significantly in size, weight per unit of power generated, and arrangement of components. The principal type is the… …   Universalium