Pull switch (original) (raw)
A pull switch, also known as pull-cord switch, or light pull, or pull chain is a switch that is actuated by means of a chain or string. 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 Harvey Hubbell, who was granted its patent in 1896. 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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| dbo:abstract | A pull switch, also known as pull-cord switch, or light pull, or pull chain is a switch that is actuated by means of a chain or string. 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 Harvey Hubbell, who was granted its patent in 1896. 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 illumination). 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 string. The other type would switch to closed (or open) only when releasing after 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. 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. Most commercially available pull switches use a short length of ball chain, 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. (en) |
| dbo:thumbnail | wiki-commons:Special:FilePath/A_pull_switch_for_a_ceiling_light.jpg?width=300 |
| dbo:wikiPageExternalLink | http://www.coolceilingfans.com/accessories/ceiling-fan-pulls.html |
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| dbo:wikiPageLength | 3032 (xsd:nonNegativeInteger) |
| dbo:wikiPageRevisionID | 1124083623 (xsd:integer) |
| dbo:wikiPageWikiLink | dbr:Electric_light dbr:Light_switch dbc:Switches dbr:Switch dbr:Ceiling_fan dbr:Ball_chain dbr:Harvey_Hubbell dbr:Pullstring dbr:Link_chain dbr:File:A_pull_switch_for_a_ceiling_light.jpg |
| dbp:wikiPageUsesTemplate | dbt:Citation_needed dbt:R dbt:Reflist dbt:Use_dmy_dates dbt:Switches |
| dct:subject | dbc:Switches |
| gold:hypernym | dbr:Switch |
| rdf:type | dbo:BaseballPlayer yago:Artifact100021939 yago:Control103096960 yago:Device103183080 yago:Instrumentality103575240 yago:Mechanism103738472 yago:Object100002684 yago:PhysicalEntity100001930 yago:Switch104372370 yago:Whole100003553 yago:WikicatSwitches |
| rdfs:comment | A pull switch, also known as pull-cord switch, or light pull, or pull chain is a switch that is actuated by means of a chain or string. 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 Harvey Hubbell, who was granted its patent in 1896. 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. (en) |
| rdfs:label | Pull switch (en) |
| owl:sameAs | freebase:Pull switch yago-res:Pull switch wikidata:Pull switch http://ta.dbpedia.org/resource/இழுவை_ஆளி https://global.dbpedia.org/id/4tkPe |
| prov:wasDerivedFrom | wikipedia-en:Pull_switch?oldid=1124083623&ns=0 |
| foaf:depiction | wiki-commons:Special:FilePath/A_pull_switch_for_a_ceiling_light.jpg |
| foaf:isPrimaryTopicOf | wikipedia-en:Pull_switch |
| is dbo:wikiPageRedirects of | dbr:Pull-chain_switch |
| is dbo:wikiPageWikiLink of | dbr:Bridgeport,_Connecticut dbr:The_Tatami_Galaxy dbr:Switch dbr:Ceiling_fan dbr:Harvey_Hubbell dbr:Three's_a_Crowd_(1932_film) dbr:Chain dbr:Pullstring dbr:Pull-chain_switch |
| is foaf:primaryTopic of | wikipedia-en:Pull_switch |
