The Model Engineer and Practical Electrician Volume 14

The Model Engineer and Practical Electrician Volume 14

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1906 edition. Excerpt: ...and secured with a lock-nut. The bearings are of solid gun-metal, and have ijins. of bearing surface. The rocker bar was cut to shape from a piece of in. thick fibre sheet. Making it of this material does away with insulation washers, etc., and these are always troublesome to fix properly. As can be seen on the photograph, the brushes are adjustable, and have spring holders. The bottom magnet lias extension pieces cast on for fixing the bearings to. I made all the patterns, also the brass castings, including the washers for bobbin ends. This machine gives its full A Small Manchester Type Dynamo. and the covering letter should contain a declaration to this effect. The competition will close on March 31 st. Engineering Drawing for Beginners. By H. MunCaster. Continued from page 259.) IF the preceding geometrical exercises have been thoroughly mastered, no difficulty should be experienced in correctly joining lines and circles in all cases generally met with. It will be useful to remember (1) that if a line touches a circle, a second line drawn through the centre of the circle and the point of contact is perpendicular to the first line; (2) that if two circles touch each other, a line joining the centres of the circles parses through the point of contact. The following is intended as an exercise. It is taken from a drawing of a connecting-rod end, and as there are circles to join circles and lines to join circles, the student will have to fall back on the principles taught in the former exercises. lines showing any indication of a join. At present it will suffice to draw neatly in pencil without inking-in the lines. It is, in every case, desirable to make a complete drawing in pencil before inking any lines whatever, as it is worth...
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Product details

  • Paperback | 422 pages
  • 189 x 246 x 22mm | 748g
  • United States
  • English
  • black & white illustrations
  • 1236805208
  • 9781236805201