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The word yo-yo probably comes from the Ilocano term yóyo, or a cognate word from the Philippines. [1] [2]Boy playing with a terracotta yo-yo, Attic kylix, c. 440 BC, Antikensammlung Berlin (F 2549) A 1791 illustration of a woman playing with an early version of the yo-yo, which was then called a "bandalore" Lady with a yo-yo, Northern India (Rajasthan, Bundi or Kota), c. 1770 Opaque ...
Fischer designed the ball grinding mill, a machine that allows steel balls to be ground to an absolutely round state in large volumes for the first time. His innovation was to tilt slightly the grinding wheel by 1.9°, forcing the balls to rotate on both their axis while they are ground. [ 1 ]
Although bearings had been developed since ancient times, the first modern recorded patent on ball bearings was awarded to Philip Vaughan, a Welsh inventor and ironmaster who created the first design for a ball bearing in Carmarthen in 1794. His was the first modern ball-bearing design, with the ball running along a groove in the axle assembly. [1]
Philip Vaughan was a Welsh inventor and ironmaster who patented the first design for a ball bearing in 1794. [1] [2] Vaughan's patent [3] described how iron balls could be placed between the wheel and the axle of a carriage. The balls let the carriage wheels rotate freely by reducing friction. [4]
The yo-yo is an example of a skill toy. A skill toy is an object or theatrical prop used for dexterity play or an object manipulation performance. A skill toy can be any static or inanimate object with which a person dances, manipulates, spins, tosses, or simply plays.
1794 - The first patent for the ball race was given to Phillip Vaughn of Carmarthen, Wales. This is the first design seen with a spherical object moving through a groove. 1869 -Jules Suriray receives the first patent for a radial ball bearing, his design was used by James Moore to win the first 80 mile bicycle race from Paris to Rouen. [6]
The Chinese yo-yo, often considered a type of diabolo, has been described as "a short round wooden stick with two round disks, 1.5 cm thick with a space between them, attached on either end of the stick...It will rotate on a string, each end tied to a thin stick," [21] and as "two hollow discs of light wood, with openings in the sides, united ...
Pedro Edralin Flores (26 April 1896 – 3 January 1964) [1] was a Filipino businessman and yo-yo maker who has been credited with popularizing yo-yos in the United States.He patented an innovation to yo-yos that used a loop instead of a knot around the axle, allowing for new tricks such as the ability to "sleep".
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