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Ratchet Pawl Mechanism

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Ratchet is form of gear in which the teeth are cut for one way operation. Ratchet pawl mechanism is used in lifting equipment and to preventing the reverse rotation when the input force is removed. This mechanism is also used in wrenches. The pawl engages the ratchet teeth, is pivoted at one end and the other end engages with the ratchet teeth. Both the locking and driving pawl are spring loaded to maintain constant contact against the ratchet wheel.