[机] 曲件调直器

Jim-crow \Jim"-crow`\, a.
For negroes only; set aside for used of negroes as a policy
of racial discrimination.
[PJC]


Jim-crow \Jim"-crow`\, n. (Mach.)
1. A machine for bending or straightening rails.

2. A planing machine with a reversing tool, to plane both
ways.