Matches in DBpedia 2016-04 for { <http://dbpedia.org/resource/Pallet_fork> ?p ?o }
Showing triples 1 to 36 of
36
with 100 triples per page.
- Pallet_fork abstract "The pallet fork is a component of the lever escapement of a mechanical watch. The pallet fork and the lever form one component that sits between the escape wheel and the balance wheel. Its purpose is to lock the escape wheel, and release it one tooth at a time at each swing of the balance wheel, and also give the balance wheel small pushes to keep it going. In early watches the pallet fork and the lever were made as separate components and joined together. In later watches they were made as a single component as shown in the picture. The combined component is often referred to simply as the \"lever\". In a straight line Swiss lever type escapement, the lever is shaped like a 'T' or an anchor, which gives this escapement its alternative name of anchor escapement. The lever is pivoted in the center; in operation it rocks back and forth. On the arms of the 'T' are angled surfaces called pallets which alternately engage the teeth of the escapement's escape wheel. The central shaft of the lever ends in a fork, which gives pushes to the balance wheel's impulse pin, which is set off center in a disk on the balance wheel's shaft. To reduce friction, the pallets are made of precisely shaped pieces of ruby jewel. The pallet which the teeth first contact is called the entry pallet, while the other one is called the exit pallet. Under the fork there is a projecting guard pin which passes through a notch in a separate safety roller disk on the balance shaft. In normal operation it doesn't have a function. Its purpose is to make sure the fork is in the right position to receive the impulse pin if a jar to the watch prematurely 'unlocks' the lever from the escape wheel.Mechanical alarm clocks and kitchen timers use a less accurate form of the lever in which vertical metal pins are substituted for the pallet jewels. This is called a Roskopf or pin-pallet escapement, and was previously used in cheap pin-lever watches.".
- Pallet_fork thumbnail Pallet-lever.jpg?width=300.
- Pallet_fork wikiPageID "1567176".
- Pallet_fork wikiPageLength "3044".
- Pallet_fork wikiPageOutDegree "13".
- Pallet_fork wikiPageRevisionID "694779734".
- Pallet_fork wikiPageWikiLink Alarm_clock.
- Pallet_fork wikiPageWikiLink Balance_wheel.
- Pallet_fork wikiPageWikiLink Category:Timekeeping_components.
- Pallet_fork wikiPageWikiLink File:Pallet-lever.jpg.
- Pallet_fork wikiPageWikiLink Georges_Frederic_Roskopf.
- Pallet_fork wikiPageWikiLink Lever_escapement.
- Pallet_fork wikiPageWikiLink Mechanical_watch.
- Pallet_fork wikiPageWikiLink Pin-pallet_escapement.
- Pallet_fork wikiPageWikiLink Timer.
- Pallet_fork wikiPageWikiLink File:Chinese_movement_escapement_and_jewels.jpg.
- Pallet_fork wikiPageWikiLinkText "Pallet fork".
- Pallet_fork wikiPageWikiLinkText "lever".
- Pallet_fork wikiPageWikiLinkText "pallet fork".
- Pallet_fork wikiPageWikiLinkText "pallet".
- Pallet_fork wikiPageWikiLinkText "pallets".
- Pallet_fork subject Category:Timekeeping_components.
- Pallet_fork hypernym Component.
- Pallet_fork type MilitaryUnit.
- Pallet_fork type Component.
- Pallet_fork comment "The pallet fork is a component of the lever escapement of a mechanical watch. The pallet fork and the lever form one component that sits between the escape wheel and the balance wheel. Its purpose is to lock the escape wheel, and release it one tooth at a time at each swing of the balance wheel, and also give the balance wheel small pushes to keep it going. In early watches the pallet fork and the lever were made as separate components and joined together.".
- Pallet_fork label "Pallet fork".
- Pallet_fork sameAs Q557067.
- Pallet_fork sameAs Anker_(Uhr).
- Pallet_fork sameAs Ankergang.
- Pallet_fork sameAs m.05b_cw.
- Pallet_fork sameAs Ankare_(urverksdel).
- Pallet_fork sameAs Q557067.
- Pallet_fork wasDerivedFrom Pallet_fork?oldid=694779734.
- Pallet_fork depiction Pallet-lever.jpg.
- Pallet_fork isPrimaryTopicOf Pallet_fork.