A Practical Treatise on the Steel Square and Its Application to Everyday Use

A Practical Treatise on the Steel Square and Its Application to Everyday Use

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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. 1903 edition. Excerpt: ...ordinary subdivisions will be found sufficient. There will also be a diagonal scale on one side of the tongue; the two figures placed over each other represent viTiTi'i'i't'iTyrrtTithe two nnnil sides of F1g. 63 the square; the figures to the right the hypothenuse, or the exact length of a brace required to touch the measurements given. Let us take a few examples of using the g steel square and plainly show its uses and 5 advantages. We have to cut a brace to support a beam or bracket. (Fig. 63 shows the square.) We wish it to run to a point 16 inches from the inside of the beam and 21 inches down the post or jamb. We apply the square 8r?-inch mark and measure back from this mark half the thickness of the ridge. This is length. Fig. 68 shows section of roof with the square laid on. To get the bevel of collar joist take the run on the blade 11 inches, and the rise on the tongue 8ts inches. The blade gives the cut. Supposing the ends of the building have to be hipped in, to get the length and bevels of the hips, etc., proceed as follows: thus (Fig. 64): Place the corresponding figures 21 on the blade and 16 Y"1 on the tongue just touching the edge of the brace piece; mark by both blade and tongue and you have the length and bevels to fit. Fig. 65 shows the brace in position and the square laid on the angle. This shows the workman that the square simply represents the angle into which the brace has to fit. Now this rule follows likewise right through; you make the square represent the angle you have to fit. Sometimes you have a chance to place the brace in position and mark it. We now have to fit a similar brace touching a point 2 feet 10 inches on the beam and 3 feet 8 inches down the post, with the ends toed-in % inch to prevent its slipping...show more

Product details

  • Paperback | 36 pages
  • 189 x 246 x 2mm | 82g
  • Rarebooksclub.com
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236633628
  • 9781236633620