Pawl 1


Pawl 1 : (1) (Fire Pr) A part of a locking mechanism that secures an extension ladder in the desired extended position by engaging the beams of the fly ladder to the rungs of the bed ladder. See also: Dog. (2) (Mech Eng) A mechanism or catch that prevents a wheel from turning in a backward direction by engaging a rachet tooth or by cam friction on a smooth wheel. Note: A pawl can also be used to advance a rachet wheel forward in increments
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