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Triangular curved spokes!
Triangular curved spokes!
They're sort of curvy pie-slices, with a curved "spoke" running from hub to rim, then along the rim, and then a curved "spoke" running back from the rim to the hub. Look carefully at the junction of rim and "spoke": http://i18.tinypic.com/4vmxzwz.jpg Each curved "spoke" touches the curved "spoke" of another triangular unit, and every surface is brazed to every other surface. This wall-to-wall brazing probably leaves no lingering questions about stress-relief. According to the inventor, George S. Long, the spokes are "nicely made and bent pieces of steel, which perform important functions. . . . I have shown the arms as curved. This may be of advantage in giving elasticity. . . . Unlike the wheels in common use with wire arms, every part is capable of serving both to resist a thrusting and a tensile force." http://i17.tinypic.com/6f7s9cm.jpg But, hey, let's not be dogmatic: "I do not consider . . . these features essential to the success or partial success of the invention. I can make a good wheel with straight arms extending directly radial." http://i10.tinypic.com/4q4h2lh.jpg And by George, he can! The small rear wheel is shown as the same pie-slice design, but without the curviness. Cheers, Carl Fogel |
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