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A Swivel is a mechanical device used on a drilling rig that hangs directly under the traveling block and directly above the kelly drive, that provides the ability for the kelly (and subsequently the drill string) to rotate while allowing the traveling block to remain in a stationary rotational position (yet allow vertical movement up and down the derrick) while simultaneously allowing the ...
Kingpins were always clamped in the centre and the swivel bearings at the ends, to increase the lever arm and so reduce the bearing load. Independent front suspension developed through the 1930s, for high-performance cars at least, often using double wishbone suspension. This performance also encouraged the reduction of unsprung weight.
A swivel is a connection that allows the connected object, such as a gun, chair, swivel caster, or an anchor rode to rotate horizontally or vertically. Swivel designs
Among the company's first video arcade games in 1984 was a video poker machine available in floor-cabinet, swivel-mounted table and countertop table chassis. [10] Greyhound advertised the machine as an amusement game—no cash or prize redemption for winning—and emblazoned the machine with an " amusement only " sticker. [ 11 ]
Zero scrub radius (top) positive scrub radius (center) negative scrub radius (bottom) In an automobile's suspension system, the scrub radius is the distance in front view between the king pin axis and the center of the contact patch of the wheel, where both would theoretically touch the road.
Modern fifth wheels allow the trailers to slide into the fifth wheel and lock into it very reliably when maintained and serviced properly. The engagement of the king pin into the fifth-wheel locking mechanism is the only means of connection between tractor and trailer; no other device or safety mechanism is used.
The first generation King Midget was a single-passenger kit designed to resemble a midget racer. The kit included the chassis, axles, steering assembly, springs, instruction manual, plus dimensioned patterns for the sheet metal, all for a cost of $270.00. [3] It would accept any one-cylinder engine. [3]
Slot screw drives have a single horizontal indentation (the slot) in the fastener head and is driven by a "common blade" or flat-bladed screwdriver.This form was the first type of screw drive to be developed, and, for centuries, it was the simplest and cheapest to make because it can just be sawed or filed.