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"Hoist with his own petard" is a phrase from a speech in William Shakespeare's play Hamlet that has become proverbial. The phrase's meaning is that a bomb-maker is blown ("hoist", the past tense of "hoise") off the ground by his own bomb ("petard"), and indicates an ironic reversal or poetic justice. [1]
Hoist atop an elevator. A hoist is a device used for lifting or lowering a load by means of a drum or lift-wheel around which rope or chain wraps. It may be manually operated, electrically or pneumatically driven and may use chain, fiber or wire rope as its lifting medium.
Hoist controller, a machine for raising and lowering goods or personnel by means of a cable; Hydraulic hooklift hoist, another machine; Hoist (mining), another machine; Hoist (flag), the half of a flag nearer to the flagpole; Hoist, by Phish; USS Hoist (ARS-40), a Bolster class rescue and salvage ship acquired by the U.S. Navy during World War II
A team of riggers design and install the lifting or rolling equipment needed to raise, roll, slide or lift objects such as heavy machinery, structural components, building materials, or large-scale fixtures with a crane, hoist or block and tackle. Rigging comes from rig, to set up or prepare.
Used to repeat the third flag of a hoist later within the same hoist. Code/Answer Pennant: At the dip (about half-way up the halyard): Ready to receive message Close up: Message has been received and understood (the flag is then hauled back at the dip to receive the next hoist) Hauled down: Signals end of message. With numerals: Decimal point
A drum hoist (steel wire rope visible) and motor. In underground mining a hoist or winder [1] is used to raise and lower conveyances within the mine shaft.Modern hoists are normally powered using electric motors, historically with direct current drives utilizing Ward Leonard control machines and later solid-state converters (), although modern large hoists use alternating current drives that ...
The generally accepted definition of a crane is a machine for lifting and moving heavy objects by means of ropes or cables suspended from a movable arm. As such, a lifting machine that does not use cables, or else provides only vertical and not horizontal movement, cannot strictly be called a 'crane'. Types of crane-like lifting machine include:
Main article: Flag § Hoisting the flag. A piece of loose fabric running along the hoist for attaching a flag to its rope. Hoist The half or edge of a flag nearest to the flagpole. This term also sometimes refers to the vertical dimension of a flag. Length The span of a flag along the side at right angles to the flagpole. Width or breadth