NationMaster - Encyclopedia: Cylinders

For the geometric object, see Cylinder (geometry).
For the engine component, see Cylinder (engine).
In firearms the cylinder is the rotating device that contains the firing chambers of a revolver.
The phonograph cylinder was the dominant medium of audio storage from the 1870s to the 1910s, and continued in limited use (such as in the dictaphone) through the mid 20th century.
A cylinder is also a type of lens and a form of refraction error.
And see gas cylinder.

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Categories: Disambiguation | Firearm components

Results from FactBites:

Cylinder - Wikipedia, the free encyclopedia (190 words)
	Cylinder (disk drive), a unit of data division on a hard disk drive
	Phonograph cylinder, the dominant medium of audio storage from the 1870s to the 1910s and in limited use (such as in the dictaphone) through the mid 20th century
	Cylinder (firearms), the cylinder is the rotating device that contains the firing chambers of a revolver

Phonograph cylinder - Wikipedia, the free encyclopedia (1684 words)
	Early cylinder records would commonly wear out after they were played a few dozen times; the buyer could then either bring the worn cylinders back to the dealer to be traded in as partial credit for purchase of new recordings, or have their surface shaved smooth so new recordings could be made on them.
	Cylinder phonographs also usually used a worm gear to move the stylus in synchronization with the grooves of the recording, whereas most disc machines relied on the grooves to pull the stylus along.
	Cylinder phonograph technology continued to be used for dictaphone recordings for office use into the early 1950s when the cylinder dictaphone was supplanted by magnetic tape.

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