- dumb sheave
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Naut.1. a block having no sheave or other part rolling with the movement of a line.2. a groove in a spar or other timber, through which a rope can slide.[1855-60]
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Universalium. 2010.
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Universalium. 2010.
dumb sheave — noun : a block with a sheaveless hole or a groove in a spar for a rope to be rove through * * * Naut. 1. a block having no sheave or other part rolling with the movement of a line. 2. a groove in a spar or other timber, through which a rope can… … Useful english dictionary