block tackle
Rope-and-wheel hoist
A block and tackle (often shortened to block tackle) is a system of pulleys and rope used to lift or move heavy loads.
The pulleys multiply force, allowing one person to raise weight they couldn't lift directly.
The term appears in nautical and construction contexts: We rigged a block tackle to hoist the engine out.
- pulleyGrooved wheel for rope
- ropeThick twisted fibers
- hoistRaise with tackle
- liftMechanism for vertical transport
- heavy liftingArduous physical or mental exertion
rigging · mechanical · advantage · force · haul · crane · load · dead weight · simple machine · mechanical advantage · sheave · line · football · offensive line · defensive · sack · open field · quarterback