bull wheel


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bull wheel

[′bu̇l ‚wēl]
(mechanical engineering)
The main wheel or gear of a machine, which is usually the largest and strongest.
A cylinder which has a rope wound about it for lifting or hauling.
A wheel attached to the base of a derrick boom which swings the derrick in a vertical plane.
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References in periodicals archive ?
It drives a single Sauer-Danfoss pump, which powers a Sauer-Danfoss motor mated with a Brevini Rudittori 122.6:1 reduction gear that is connected to the back of the second bull wheel. Also actuated by a hand coupling, this is considered the "evacuation" drive and would only be used as a last resort to bring the cars home at 3.9 ft.
The 2-inch pipe used as the axle for the bull wheel was U-bolted to the bottom of the Model T frame about 4 feet ahead of the rear drive axle.
The 1 ft.-wide, 200 ft.-long leather belt slapped as it turned the 10 ft.-wide bull wheel to pull the shackle rods and pump the oil.
The rear wheels were bull wheels salvaged from grain binders.
Unbelievably, the bull wheeled in my direction and galloped over, slowing to a trot at just over 15 yards.
We must have seen each other at the same moment, as the handsome bull wheeled and turned before I even had a chance to pull back on my bowstring.
Its manufacturing plant in Salt Lake City provides the classic structural components such as towers and terminal structures and its Sacramento facility manufactures the chairs, bull wheels and specialty equipment.
The bull wheeled and vanished beyond the crest in a flash, but I knew he was done.
The bull wheeled at the shot and bounded behind a small knoll about 75 yards away, making a huge racket, and then complete silence fell like a curtain.
The bull wheeled and ran directly away, and as the mature cow followed him, the bush around me came alive.