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2. Pull switch - Wikipedia

   en.wikipedia.org/wiki/Pull_switch

   The most common use of a pull switch is to operate a ceiling electric light.The ceiling fan and mechanical wall fans are also appliances often operated by pull switches. . Pull switches may be either two-position (open or closed) or multi-position (allowing for different fan speeds or levels of illuminati

3. Light switch - Wikipedia

   en.wikipedia.org/wiki/Light_switch

   A toggle light switch Internal components of a toggle switch. The toggle mechanism provides "snap-action" through the use of an "over-center" geometry. The design was patented in 1916 by William J. Newton and Morris Goldberg. [2] The switch actuator does not control the contacts directly, but through an intermediate arrangement of springs and ...

4. Mechanically powered flashlight - Wikipedia

   en.wikipedia.org/wiki/Mechanically_powered...

   A version using a pull-cord was used in World War I. [2] The photo shows the internal mechanism: the L-shaped handle has a gear rack , which spins the white step-up gear, which in turn spins the flywheel on which is mounted both a centrifugal clutch (to allow freewheeling after the lever stops its travel and then returns) and a dark grey magnet ...

5. Pullstring - Wikipedia

   en.wikipedia.org/wiki/Pullstring

   A pullstring (pull string, pull-string), pullcord (pull cord, pull-cord), or pullchain (pull-chain, pull chain) is a string, cord, or chain wound on a spring-loaded spindle that engages a mechanism when it is pulled. It is most commonly used in toys and motorized equipment. More generally and commonly, a pullstring can be any type of string ...

6. Andon (manufacturing) - Wikipedia

   en.wikipedia.org/wiki/Andon_(manufacturing)

   Once the problem is troubleshot and fixed, a second pull of the andon cord authorizes the production to be resumed. The system typically indicates where the alert was generated, and may also provide a description of the issue. Modern andon systems can include text, graphics, or audio elements.

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