Assertion: rack's side | /r/CapableOf | engage in rack teeth
Facets:
Source sentences:
text: John Blenkinsop thought that the friction would be too low from metal wheels on metal rails, so he built his steam locomotives for the Middleton Railway in 1812 with a 20-tooth, 3-foot (914 mm) diameter cog wheel (pinion) on the left side that engaged in rack teeth (two teeth per foot) on the outer side of the rail, the metal "fishbelly" edge rail with its side rack being cast all in one piece, in three-foot (one-yard; nine-hundred-and-fourteen-millimetre) lengths.