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| The figures below belong to the Franklin Science Institute's Escapement collection. Notice that each escapement has a gear with teeth. There is also a pendulum which has a device to engage the teeth of the gear. As the pendulum swings back and forth, one tooth of the gear escapes. |
| Click on each photo to magnify and learn more! | |
 "Anchor Recoil" (1675) |  Made about 1825 |
 Double Pin Wheel (1700's) |  Chevalar De Bethume (1727) |