Sir Robert Hookie’s joint was identical in principle to the Cardan Joint, merely different in construction and similarly Cardan’s joint was essentially identical to the Chinese gimbals but different in application, so neither man can be credited with the invention of the principle. Cardan however was the first to realize that gimbals could be used to transmit rotary motion through an angle. Sir Robert Hooke was the first to construct a Cardan Joint (of different design) and Sir Robert was the first to address the problem of Constant Velocity. After the advent of the industrial revolution and particularly after the invention of the steam engine and internal combustion engine, universal joints were used, but because they were not constant velocity and were poorly lubricated they regularly failed with the result that chains and belts were used in preference. Between Hooke’s time and 1903 there was essentially no advance in universal joint technology. In 1903 Clarence Spicer was charged with designing a motorcar, but did not want to use chain drive that was usual at the time, so he invented a universal joint with bearings and sealed against dust. Spicer began production of his joint in 1904, he later took in Charles Dana as a partner and the firm Dana Spicer is today one of the worlds largest companies with in excess of 70,000 employees. The Tracta Joint gained widespread usage in Britain, Europe and America and was still used widely during the Second World War in light military vehicles including those made World of Warcraft Gold by Ford and Dodge. It was however a horrid thing, with large torque transmitting surfaces sliding inside forks. It had a high wear rate and a lot of friction however, with cheap petrol and no greenhouse concerns it gained acceptance. In 1925 Carl Weiss patented a constant velocity joint that became known as the Bendix-Weiss joint. It consisted of two interlocking yolks and four steel balls situated EVE ISK in grooves formed in each yolk. This problem with this joint was that there were only four balls transmitting the torque through their line of contact and the balls skidded rather than rolled in the grooves with the result that wear rates, heat and friction were high however, this joint also gained widespread usage in light vehicles and applications. Sodini clearly felt that he was entitled not just to sex and a romantic relationship, but to sex and a romantic relationship with a much younger woman. And he was following the advice of a love-and-romance guru who encouraged him to hold on to that belief and filled him with false hopes. Not normally a problem, cheap ed hardy I supposed. But Sodini wasn't just another socially maladapted schlub furious with the world—and with women—for denying him all the 22-year-old ass he felt he deserved. He was a nut. And he couldn't understand why, if he was doing everything right, he wasn't finding the success that was Steele guaranteed him. He was employed, dressed nicely, in good shape—he even bought a matching sofa set. ("Couch and chair—they match, steel balls the woman will really be impressed.") But none of it worked—and his failure couldn't have been his own fault, since he was doing everything right, doing it all by the book. Unfortunately the book was Date Young Women: For Men Over 35. |