Assertion: rake | /r/HasProperty | raised by the cam
Facets:
value: through bell crank
type: MANNER
value: through the rocker arm
type: MANNER
Source sentences:
text: At the end of this upward stroke the rake is raised by the cam through the rocker arm and bell crank so that, on the return stroke of the crank (9), it moves down clear of the sand which has been settling on the bottom of the tank.