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Mounted inside a pull switch, there could be two types of two-position toggle switches. (In both cases the stable physical open- or closed -situation would be switch in outer and string in upper position.) One type would switch to closed (alternatively open) already during the initial pull in the
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a full pull. With the first type, the weight of the string and handle could accidentally switch the load intermittently on and off, when still around the initial position (depending on the internal spring). This could potentially increase the danger of overheating in the switch.
206:, which may then be connected to any number of optional leads for added length or decoration. Leads for decoration or utility are usually made of metal or plastic. They can come in many different shapes ranging from animals, geometric shapes, or look just like a weight.
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In a damp environment, electrical pull switches have a safety advantage because the user is separated from the electricity by a significant distance if the lead is made of an electrically insulating material, such as cotton string.
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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 illumination).
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An electric pull switch is attached to a toggle type switch: one pull to switch on and next pull to switch off. It was invented by
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Most commercially available pull switches use a short length of
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A Dictionary of
Construction, Surveying, and Civil Engineering
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The most common use of a pull switch is to operate a ceiling
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Switch operated with pull chain found on ceiling fans
241:. Oxford Quick Reference. OUP Oxford. p. 960.
49:. Unsourced material may be challenged and removed.
235:Gorse, C.; Johnston, D.; Pritchard, M. (2012).
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109:Learn how and when to remove this message
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496:Motion-triggered contact insufficiency
169:, who was granted its patent in 1896.
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47:adding citations to reliable sources
161:A light fixture using a ball chain.
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141:that is actuated by means of a
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491:Miniature snap-action switch
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471:Magnetic proximity fuze
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626:Wireless light switch
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406:Electric switchboard
43:improve this article
296:19 January 2013 at
376:Contact protection
366:Centrifugal switch
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631:Zero speed switch
248:978-0-19-104494-6
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431:Inertial switch
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381:Crossbar switch
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58:"Pull switch"
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54:Find sources:
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32:This article
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606:Touch switch
561:Sense switch
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511:Piezo switch
461:Light switch
451:Limit switch
446:Knife switch
411:Float switch
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254:13 September
252:. Retrieved
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41:Please help
36:verification
33:
601:Time switch
551:Sail switch
541:Reed switch
531:Push-button
526:Push switch
521:Pull switch
506:Photoswitch
436:Kill switch
401:Dry contact
183:ceiling fan
123:pull switch
596:Thermostat
571:Softswitch
556:Sea switch
441:Key switch
421:Humidistat
396:DIP switch
361:Cam switch
222:References
204:ball chain
135:pull chain
131:light pull
69:newspapers
576:Spark gap
291:Fan Pulls
173:Mechanics
661:Switches
655:Category
391:Cryotron
294:Archived
210:See also
153:History
83:scholar
334:Switch
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181:. The
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139:switch
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