The National Carpenter and Joiner; A Complete Work on Constructive Carpentry; Showing the Simplest Methods of Finding All Joints and Geometrical Forms, Including Splayed Work, Groined Ceilings, Framing, Roofing, Domes, Niches, Raking and

The National Carpenter and Joiner; A Complete Work on Constructive Carpentry; Showing the Simplest Methods of Finding All Joints and Geometrical Forms, Including Splayed Work, Groined Ceilings, Framing, Roofing, Domes, Niches, Raking and

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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. 1873 edition. Excerpt: ...the are 2M 1; make POequalC9; make OUequal 9 P, on U, with U O as radius, mark the are 3, O, 6; make S Q equal 4, l0; makcQ W equal 10, S; on W, with W Q as radius, mark the are 4 Q 7; make V T equal 11, 12; makeTY equal12, V; on Y, with Y T as radius, mark the are 5 T 8; through the points 2, 3, 4, 5, X, 8, 7, 6, 1, trace the curve of rib for the line of ceiling. The four ribs forming the concave arch above the ceiling are segments of circles drawn from the centers R. U, W, Y. If the ceiling is inclined, make the angle O R B to agree, and proceed to find the ribs accordingly. Fro. 1.--For Moulding Stuck by Power.--T find the shape of any given moulding on the face of the cutting iron, two things must be known, viz.: the distance from the center of the cutter head B, to the face of the cutting iron M; and the distance from the center of the cutter head B, to the bed plate A. Let the face of the cutting iron M N be placed at right angles to the bed plate; and let B A be parallel to M F; place a draw _ ing of the given moulding O on the bed plate in the posi tion shown; parallel to A C, draw E D, S L, and asmany more measuring lines as seem desirable; on B as center, draw A F, D J, L N, and so continue with the remaining measuring lines; at right angles to F N, draw F G, J K, NT, etc.; makeFGequalAC; makeJRKequalDQE, etc. Trace through these the shape of the cutting iron P. lithe shape Pbe transferred to apiece ofthin tinand cut out, it might be kept for correcting the wear of the iron. Fm. 2.--'I'o Find the Shape of an Inclined Back for a Circular Seat.--Let A B, D E, be the circular seat, let M N be the inclination of the back, and N C the horizontal surface of the seat; make F G indefinitely and at right angles to F N; continue M N to G;...show more

Product details

  • Paperback | 30 pages
  • 189 x 246 x 2mm | 73g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236817664
  • 9781236817662