Definition of Expansion coupling. Meaning of Expansion coupling. Synonyms of Expansion coupling

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Definition of Expansion coupling

Expansion coupling
Expansion Ex*pan"sion, n. [L. expansio: cf. F. expansion.] 1. The act of expanding or spreading out; the condition of being expanded; dilation; enlargement. 2. That which is expanded; expanse; extend surface; as, the expansion of a sheet or of a lake; the expansion was formed of metal. The starred expansion of the skies. --Beattie. 3. Space through which anything is expanded; also, pure space. Lost in expansion, void and infinite. --Blackmore. 4. (Com.) Enlargement or extension of business transactions; esp., increase of the circulation of bank notes. 5. (Math.) The developed result of an indicated operation; as, the expansion of (a + b)^2 is a^2 + 2ab + b^2. 6. (Steam Engine) The operation of steam in a cylinder after its communication with the boiler has been cut off, by which it continues to exert pressure upon the moving piston. 7. (Nav. Arch.) The enlargement of the ship mathematically from a model or drawing to the full or building size, in the process of construction. --Ham. Nav. Encyc. Note: Expansion is also used adjectively, as in expansion joint, expansion gear, etc. Expansion curve, a curve the co["o]rdinates of which show the relation between the pressure and volume of expanding gas or vapor; esp. (Steam engine), that part of an indicator diagram which shows the declining pressure of the steam as it expands in the cylinder. Expansion gear (Steam Engine). a cut-off gear. See Illust. of Link motion. Automatic expansion gear or cut-off, one that is regulated by the governor, and varies the supply of steam to the engine with the demand for power. Fixed expansion gear, or Fixed cut-off, one that always operates at the same fixed point of the stroke. Expansion joint, or Expansion coupling (Mech. & Engin.), a yielding joint or coupling for so uniting parts of a machine or structure that expansion, as by heat, is prevented from causing injurious strains; as by heat, is prevented from causing injurious strains; as: (a) A side or set of rollers, at the end of bridge truss, to support it but allow end play. (b) A telescopic joint in a steam pipe, to permit one part of the pipe to slide within the other. (c) A clamp for holding a locomotive frame to the boiler while allowing lengthwise motion. Expansion valve (Steam Engine), a cut-off valve, to shut off steam from the cylinder before the end of each stroke.

Meaning of Expansion coupling from wikipedia

- In physics, a coupling constant or gauge coupling parameter (or, more simply, a coupling), is a number that determines the strength of the force exerted...
- A coupling is a device used to connect two shafts together at their ends for the purpose of transmitting power. The primary purpose of couplings is to...
- Knuckle couplers are a semi-automatic form of railway coupling that allow rail cars and locomotives to be securely linked together without rail workers...
- Kinematic coupling describes fixtures designed to exactly constrain the part in question, providing precision and certainty of location. A canonical example...
- typically describe the interactions of the components. These may be variable couplings which measure the strength of various forces, or m**** parameters themselves...
- the spin–orbit interaction (also called spin–orbit effect or spin–orbit coupling) is a relativistic interaction of a particle's spin with its motion inside...
- data is in the order of 10−10. This close agreement holds because the coupling constant (also known as the fine-structure constant) of QED is much less...
- There are two types of grooved coupling; a flexible coupling allows a limited amount of angular movement, and a rigid coupling does not allow movement and...
- The railcar couplers or couplings listed, described, and depicted below are used worldwide on legacy and modern railways. Compatible and similar designs...
- system Length over headstocks Multi-function couplers Railway coupling Railway coupling by country Rotary car dumper Safety of tank cars Slack action...