I suspect the name may have come from the similarity of motion of the rail bender operator and the drunken crow.
[
en.wikipedia.org]
"The folk concept of a dancing crow predates the Jump Jim Crow minstrelsy and has its origins in the old farmer's practice of soaking corn in whiskey and leaving it out for the crows. The crows eat the corn and become so drunk that they cannot fly, but wheel and jump helplessly near the ground,.."
The name seems to have become international.
India:
[
www.maskohydraulics.com]
Australia:
[
trove.nla.gov.au]
Bruce
Edited 1 time(s). Last edit at 06/10/2018 08:19PM by bcp.