Table of Contents
Clock and Watch Escapement Mechanics

    Section 1: Clock Escapements (for beginners)

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          Introduction. Page 3

      1. Efficiency and Power Losses. Page 4

      2. Drawing an Escape Wheel. Page 5

      3. Drawing the Graham Pallets. Page 6

      4. The Graham Explained. Page 8

      5. The Importance of the Simulation. Page 11

      6. The Recoil Escapements. Page 16

      7. The Brocot Escapement. Page 18

      8. The Pin Wheel Escapement. Page 19

      9. Other Design Considerations. Page 20

    10. The Graham Reconsidered. Page 22

    11. Efficiency in Numbers. Page 23

    Section 2: Watch Escapements (for more advanced designers)

    12. Drawing the Club-Tooth Escape Wheel. Page 41

    13. Drawing the Pallets. Page 44

    14. Changing the Design. Page 50

    15. Improving the Design. Page 53

    16. The English Lever. Page 57

    17. The Pin Pallet Escapement. Page 60

    18. The Cylinder Escapement. Page 61

    19. The Duplex Escapement. Page 63

    20. The Chronometer Escapement. Page 67

    21. Daniel's Independent Double-Wheel Escapement. Page 72

    22. The Double-Roller. Page 79

    Section One Notes

    The first nine chapters are explained without math. These chapters are less complicated, and they introduce the reader to the logic behind the drawing techniques, so as to serve the needs of those who want to learn about escapements but would not be drawing them on their own computers. The tenth chapter explains the math behind the previous chapters. This way the reader has the option whether or not to become involved with the math.

    Section Two Notes

    Chapters 12 to 18 are similarly presented in order to introduce the reader to the logic behind the drawings, though these drawings are more involved and require some understanding of watch theory, such as lock, drop, draw, and impulse. These drawings are not simplified (as in Section 1) and are shown in full detail with full method outline. Chapter 19 and beyond become more involved with the math that is required to create the drawings. The reader who does not want to become involved with the math could benefit from the logic of the latter chapters by passing over the math.

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