Using a come-along, the sand is leveled to the precise elevation, determined by readings received from the transmitters.
Because there is no ratchet or coil, it permits very small adjustments, unlike either come-alongs or winches.
Others moved the concrete into position with come-alongs.
The underpinning has some eight-ton structural steel sections that had to be placed through windows using chain falls, come-alongs and a trolley system, he adds.
If you have ever looked at the end of a crane, or if you have ever used an engine hoist or a come-along, or if you have ever looked at the rigging on a sailboat, then you have seen a block and tackle at work.
Definition of come-along in US English:
come-along
nounˈkəməˌlôNG
North American informal
A hand-operated winch.
〈北美，非正式〉手动绞盘；手动绞车
Example sentencesExamples
Using a come-along, the sand is leveled to the precise elevation, determined by readings received from the transmitters.
The underpinning has some eight-ton structural steel sections that had to be placed through windows using chain falls, come-alongs and a trolley system, he adds.
Others moved the concrete into position with come-alongs.
Because there is no ratchet or coil, it permits very small adjustments, unlike either come-alongs or winches.
If you have ever looked at the end of a crane, or if you have ever used an engine hoist or a come-along, or if you have ever looked at the rigging on a sailboat, then you have seen a block and tackle at work.