Definition of locker bar in US English:

locker bar

noun

  • 1A metal bar in a stocking frame or knitting machine which controls the position of the jacks (historical).

  • 2(Lacemaking) a metal bar in a lace machine which controls the motion of the bobbin carriages.

Origin

Mid 18th century; earliest use found in George Charles Deering (?1695–1749), botanist.