pallet jewel

См. также в других словарях:

• Jewel bearing — A jewel bearing is a bearing in which a metal spindle turns in a jewel lined pivot hole. The hole is typically shaped like a torus and is slightly larger than the shaft diameter. In operation, the shaft tilts slightly so as to contact the jewel… …   Wikipedia

• Pallet fork — The pallet fork or pallet lever is an integral component of the lever escapement of a typical mechanical watch. [cite web last = Odets first = Walt authorlink = coauthors = title = The Anchor Escapement work = The Horologium publisher =… …   Wikipedia

• pallet stone — noun Etymology: pallet (III) : a hard stone or jewel forming the rubbing face of the pallet of a timepiece and serving to diminish friction and wear …   Useful english dictionary

• Pin-pallet escapement — A Roskopf, pin lever, or pin pallet escapement is an inexpensive, less accurate version of the lever escapement, used in mechanical alarm clocks, kitchen timers, mantel clocks and, until the 1970s, cheap watches now known as pin lever watches. It …   Wikipedia

• roller jewel — noun : a usually ruby or sapphire pin set upright in the roller disk and pushed by the pallet fork called also impulse pin …   Useful english dictionary

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