Wiktionary
slipe
n. A sledge runner on which a skip is dragged in a mine.
Usage examples of "slipe".
They were stacked like link sausages in long rows, some of them (especially the discontinued meltons and irregular slipes for which there were no orders) years old and dirty grey with industrial wastes.
Th mist parted somewhat and I saw what appeared to be three dark slipes moving along the river bank.