Mechanisms

2. A toothed wheel that works with others to alter the relation between the speed of an engine and the speed of the driven parts.
3. Information fed into a system.
8. The part of a machine which contains two or more pieces arranged so that the motion of one compels the motion of the others.
9. A gear between the driver and the driven gear used to change rotational direction.
10. Movement that is back and forth in an arc
11. Movement that is back and forth in a straight line
12. A mechanical arrangement consisting of a toothed wheel driven by a short revolving cylinder bearing a screw thread.
13. A combination of two or more gears used to transmit motion between two rotating shafts or between a shaft and a slide.
17. The member of a pair of gears to which motion and power are transmitted by the other. The output gear.
20. A push or pull on an object.
21. The gear which transmits power and motion to the rest of the system. The input gear.

1. A pivot pin near the outside edge of a wheel or disk that changes reciprocating motion into rotary motion.
4. A twisting force.
5. A pear-shaped disk with an off-center pivot point, used to change rotating motion into reciprocating motion.
6. A rotating gear that meshes with a bar that has gear teeth along its length. Changes rotating motion into linear motion.
7. Movement that is straight in one direction.
14. ratios The ratio of the speed of the driving member of a gear train to that of the driven member.
15. motion Circular movement.
16. Opposite in position, direction, order or effect.
18. Movement that is around in a circle
19. A threaded shaft used to convert rotary movement to linear movement.