Definition of "crossrail"

The stroke of the planer is remarkably uniform, the reverse taking place at the same the same screws which carry the crossrail.

1905 March 2, The Iron Trade Review, volume 38, page 70

After you have done caveletti for a little bit you should go into small crossrails about 1 foot high.

2006, Carol Jenkins, Once Upon a Fact: Helping Children Write Nonfiction, page 74