Sae Transactions Volume 10, PT. 1

Sae Transactions Volume 10, PT. 1

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1915 edition. Excerpt: ...each end. All spokes were equally spaced at the rim, as well as the hub, this method of spoking being a radical departure from the foreign methods. The spokes are placed at an angle of 40 to a tangent at their point of contact with the hub. The old method of building a wire wheel, allowing the hub to float during the tightening of spokes, and having the truer locate the tread, as well as its trueness, left some of the spokes carrying most of the load, causing spoke breakage. By fixing the position of the hub before the spokes are tightened, and using a wrench turned by a flexible shaft driven by weight-controlled friction to tighten the spokes, a wheel is produced with equal spoke tension, leaving but a slight inaccuracy to be overcome by the truer. The seating of nipples at the rim requires very careful and accurate punching to give them a full seat. The means for detaching wire wheels call for much careful study. They may be classified as "positive locking" and "self-locking." In the former the locking nut remains where the wrench leaves it. There 'S some danger of the operator not pulling the locking nut home and seating the shell to the inner hub. Relatively few miles of travel under this condition will cause damage to both shell and hub. The self-locking nut, if left loose, will find its seat as soon as the wheel has traveled a mile or so. This is due to the eccentric motion of the outer hub in relation to the inner hub; the frictional surface of the threaded portion of the locking nut offering more resistance than the contact surfaces of the smooth taper permits it to creep, and the nut will travel in the direction it should. A simple spring-latch, with the point beveled in the direction of its travel, with a notched...
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Product details

  • Paperback | 156 pages
  • 189 x 246 x 8mm | 290g
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236556054
  • 9781236556059