Definition of pulley box in US English:

pulley box

noun

  • 1Pulley block.

  • 2Weaving (in a drawloom) a frame containing the pulleys used to adjust the vertical looped strings (now chiefly historical).

  • 3A broad pulley wheel in the form of a drum or cylinder (rare).

Origin

Early 19th century; earliest use found in Peter Nicholson (1765–1844), architectural writer and mathematician.