Assertion: hoist's trolley | /r/CapableOf | run along rail
Facets:
value: horizontally
type: MANNER
value: on top of the bridge girders
type: LOCATION
Source sentences:
text: A hoist can be mounted to a trolley running along a beam or a rail, giving you the ability
text: The trolley runs on rails on top of the bridge girders.
text: With a manual hoist trolley, the operator simply pulls the hoist hook to the desired object to be moved and the trolley will follow on the rail above.
text: A gantry crane has a hoist in a fixed machinery house or on a trolley that runs horizontally along rails, usually fitted on a single beam (mono-girder) or two beams (twin-girder).