The word "pulley" is correct in written English.
It is used to refer to a simple machine consisting of a wheel on an axle or shaft designed to support movement and change the direction of force.
Example: "The workers used a pulley to lift the heavy load to the top of the building."
Alternatives: "Block and tackle" or "Hoist mechanism."
That thing at your gym, with a pulley rope and a seat, that you never see anyone on.
He revelled in gross, boastful or mechanical descriptions of sex ("a hard punishing session with pulley weights, stationary bicycle and ten breath-seared laps round the track"), not least because this outraged the women's libbers with whom, in the 1970s, he was permanently at war.
Power steering, for instance, used to be operated by a hydraulic pump driven by a pulley connected to the engine; now many cars have electric motors doing the same job.
Buy from Amazon.com, Amazon.co.ukMANKIND has been hauling loads up and down since the pulley was invented.
He has rigged up a pulley system to clear the debris, moving slabs of concrete and twisted metal into a sewage-filled pit nearby, hoping to sell the material.Israel has blockaded Gaza since 2007, when Hamas, the Palestinians' Islamist movement, took over after winning an election and violently forcing out its rival, the nationalist Fatah group.
After weeks of preparation, a group of mechanical-sciences undergraduates had pushed the van, wheelbarrow-like, minus its doors and back wheels, into place, then hoisted it using a derrick of five 24-foot scaffolding poles, 250 feet of steel wire, 200 feet of hemp rope, pulley blocks and hooks, planks, and even sacking to protect the building.
The weight is made manageable by using a z-pulley system that gives the person hauling a mechanical advantage.
"Up Burtons," ordered Captain Ahab, and the old Funk & Wagnalls dictionary used to suggest this block-and-pulley tackle came from a proper name.
Intricate pulley-systems and rope-bridges connect the trees into an arboreal village.
Camels have front and rear cannon bones, but the fusion does not extend right to the bottom, the lower articular surfaces being less pulley-like than in ruminants.
A measure of the force amplification available with the pulley-and-rope system is the velocity ratio, or the ratio of the velocity at which the force is applied to the rope (VF) to the velocity at which the weight is raised (VW).
