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Omni wheels or poly wheels, similar to Mecanum wheels, are wheels with small discs (called rollers) around the circumference which are perpendicular to the turning direction. The effect is that the wheel can be driven with full force, but will also slide laterally with great ease. These wheels are often employed in holonomic drive systems.
A Mecanum wheel is an omnidirectional wheel design for a land-based vehicle to move in any direction. It is sometimes called the Swedish wheel or Ilon wheel after its inventor, Bengt Erland Ilon (1923–2008), [ 1 ] who conceived of the concept while working as an engineer with the Swedish company Mecanum AB, and patented it in the United ...
Bessler's devices were all hollow wheels, with canvas covering the internal mechanism, that turned on a horizontal axis supported by vertical wooden beams on either side of the wheel. [ 4 ] [ 5 ] Christian Wolff, who viewed the wheel in 1715, wrote that Bessler freely revealed that the device utilized weights of about 4 pounds.
The cam can be seen as a device that converts rotational motion to reciprocating (or sometimes oscillating) motion. [clarification needed] [3] A common example is the camshaft of an automobile, which takes the rotary motion of the engine and converts it into the reciprocating motion necessary to operate the intake and exhaust valves of the cylinders.
Rachel Andress, principal of William H. Owen Elementary School, and Amanda Hefner, principal of Margaret Willis Elementary School, wait between rounds of competing on "Wheel of Fortune," earlier ...
A ratchet consists of a round gear or a linear rack with teeth, and a pivoting, spring-loaded finger called a pawl (or click, in clocks and watches [1] [2]) that engages the teeth.
Frank Nasworthy is notable in the history of skateboarding for introducing polyurethane wheel technology to the sport in the early 1970s. After graduating from Annandale High School in Northern Virginia in 1967, Nasworthy attended Virginia Tech for a year. Back with his family for the summer of 1970, he visited a plastics factory in ...
A pneumatic die grinder with a right-angle head. A cordless battery-powered rotary tool used for light tasks. A die grinder or rotary tool is a handheld power tool and multitool used for grinding, sanding, honing, polishing, or machining material (typically metal, but also plastic or wood).