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1. Ratchet and Pawl
Mechanism
Presentation On :-
©Pradeep Prajapati

2. Introduction
A ratchet is a mechanical
device that allows
continuous linear or rotary
motion in only one
direction while preventing
motion in the opposite
direction.
©Pradeep Prajapati

3. Components
1) A ratchet featuring a gear
2) pawl
3) mounted on a base
©Pradeep Prajapati

4. 1) Ratchet
A device consisting of a
bar or wheel with a set
of angled teeth in which
a cog or tooth engages,
allowing motion in one
direction only.
©Pradeep Prajapati

5. 2) Pawl
A ratchet consists of a
round gear or a linear
rack with teeth, and a
pivoting,
spring-loaded finger
called a pawl
©Pradeep Prajapati

6. 3) Base
The lowest part or edge of
something, especially the part on
which it rests or is supported.
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7. Model picture
Rachet
Pawl
Base
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8. Uses
1. Clocks
2. Jack's
3. Cable ties
4. Flywheel
5. Cycles
6. Typewriters
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9. THANK YOU
©Pradeep Prajapati