. Canadian forestry journal. Forests and forestry -- Canada Periodicals. Canadian Forestry Magazine, October, ig20. 451. On the left is a completed back or "; In the foreground the sounding board and bridge are being secured to the back. wood is SO arranged as to prevent warp- ing and also to secure that harmonious arrangement of the grain of the wood which long experience has showed to be most conducive to the best tonal effects. From these small widths are built up the various larger members that enter into the piano such as the "back" or "rim"; the delicate
. Canadian forestry journal. Forests and forestry -- Canada Periodicals. Canadian Forestry Magazine, October, ig20. 451. On the left is a completed back or "; In the foreground the sounding board and bridge are being secured to the back. wood is SO arranged as to prevent warp- ing and also to secure that harmonious arrangement of the grain of the wood which long experience has showed to be most conducive to the best tonal effects. From these small widths are built up the various larger members that enter into the piano such as the "back" or "rim"; the delicate sounding board, the heavy posts of the frame and the various sections of the case. No screws or nails are used but by glue and pressure the larger portions are built up or shaped a? required. Having touched upon the preparation of the w(K)d before it is sha])ed and built up as well as mentioning the principal woods utilized, let us now pass on to the TicUial coiislruclion of a piano. I'lic lurch or "; This in llic I'lmiidatioii to which llio whole systemâsounding board, plate, pin-block and strings is attaclicil. Ir assists the nictal I'ranu' in taking up the strain of the strings, which ol'len aggre- gates 25 tones and by its intimate con- nection witli the siinii(Hng board assists in securing thr desired resonant {|nalities. The back or â "rim" of a (irand piano is constructed somewhat dilTcrenlh- but it is intended to describe only the ordin- ary upright type in this article. Each post which goes to make up the back of a piano is made from several carefully selected pieces of wood, accu- rately matched and glued together, not a single bolt or screw being used. Cut No. 1 shows a corner of the factory v/here a number of backs are receiving the final touches. The heavy posts are made of Maple or Birch. At its upper end the back or "rim" carries the pin- block or tuning block which is made of maple. This section of the jiiano is built up of s
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