block and tackle
Rope-and-wheels lifter
A block and tackle is a system of pulleys and rope used to lift or move heavy loads.
The rope threads through two or more pulley blocks, multiplying the pulling force: They rigged a block and tackle to hoist the engine out of the boat.
Essential equipment in sailing, construction, and theatrical rigging.
Raise with tackle
- craneLifter or wader
- winchDrum-and-cable lifting mechanism
- derrickMovable boom apparatus
- raiseLift or increase
haul · heave · load · cargo · rigging · spreader bar · overhead · suspension
Force output over input
- sheaveChanneled wheel for rope
- ropeThick twisted fibers
- cableHeavy-duty woven line
- force multiplierIncreases effective strength applied
leverage · wheel · axle · reeving · drum · bearing · gear reduction · counterweight
Ropes controlling ship sails
cleat · capstan · marlinspike · seafaring · ship · vessel · yacht · schooner
Theater production expertise
- curtainFabric hung for privacy
- sceneryVisible natural surroundings
- battenStrip for securing
- counterweightBalancing mass in machinery
backstage · grid · loft · rigging · set design · theatrical · backdrop
hoist
Raise with tackle
raise · haul · heave · load · cargo · rigging · spreader bar · overhead · suspension · deadweight
mechanical advantage
Force output over input
force multiplier · leverage · wheel · axle · reeving · drum · bearing · gear reduction · counterweight · friction
rigging
Ropes controlling ship sails
deck · cleat · capstan · marlinspike · seafaring · ship · vessel · yacht · schooner · sailor
stagecraft
Theater production expertise
counterweight · backstage · grid · loft · rigging · set design · theatrical · backdrop
- Pre-electric technologywaterwheel, water wheel, windlass, plow, bellows
- simple machineslever, wheel and axle, inclined plane, screw, wedge
- cargo handlingforklifts, pallets, crates, containers, loaders
- compound machinesbicycle, scissors, can opener, pencil sharpener, sewing machine
- Greek inventionsArchimedes screw, astrolabe, automata, ballista, catapult
- lifting equipmenthoist, scissor lift, davit, crane, elevator
block and tacklebare hands
Ungloved, unequipped extremities
hydraulic lift · brute force · brute strength · forklift · hydraulic jack
block, tackle, blocking, blockage, blocks, pulley, blockhead, tackling, tackled