Success Library Volume 7

Success Library Volume 7

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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. 1901 edition. Excerpt: ...another block, as described in the preceding lesson, and enter it in the mortise. The tenon must not fit too tightly in the mortise. If you have to use great force in driving it in, you may split the mortised block. Withdraw the tenon, if it fits too snugly, and you will see on its faces bruises where it has crowded against the @ sides of the mortise. Try the faces of the tenon with the / square, and if they are plane, look for the corresponding bruises on the sides of the mortise and use the chisel very sparingly Fill-37 on these places. There is another method of removing the superfluous wood from the mortise, after the holes have been bored with the bit. This is to insert a keyhole-saw in one of the holes (Fig. 87) and saw nearly to the lines of the mortise. The sides are then pared with the chisel. This method is speedier than the one previously described, but does not afford as much practice with the chisel. A blind mortise-and-tenon joint is one in which the mortise is sunk only part way through the wood. In this case, the end of the tenon does not appear at the outer surface of the mortised block but is hidden or "blinded" within the block. A common example of the blind mortise is that which is sunk in the stile of a door, to admit the lock. In making a mortise of this kind, holes are bored into the wood with the bit, care being taken not to bore too deep. The depth of the mortise should be marked on the wide surface of the block, and the bit removed from time to time, during the progress of boring, so that the depth to which it has penetrated may be determined. This is most quickly done by placing the finger against the bit, close to the wood, and laying off on the side of the block Fig-B8 the depth to which the bit...
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Product details

  • Paperback | 220 pages
  • 189 x 246 x 12mm | 399g
  • United States
  • English
  • black & white illustrations
  • 123683660X
  • 9781236836601