Books › The Violin: A concise exposition of the general principles of construction.., 1871 › scan 64
Scan 64
The Violin: A concise exposition of the general principles of construction.., 1871
4 lines. Read by computer on 28 September 2026. No printed page number was found. See the scan on archive.org.
1long the pressure upon the tables will be too great, and the acute sounds of the instrument, those of the E string, will gain in brilliancy, to the detriment of the low sounds of the fourth string. In a word, if the pressure is too feeble, it is equivalent to decreasing the thickness of the tables; if the post is too long, the same effect is produced as if the tables were increased in thickness. It is necessary, then, to calculate the dimensions of the post, the position of the bridge, and above all, to try at every change if the sound of the air contained in the case corresponds with the fundamental sound we have already indicated, supposing all the other conditions fulfilled in the instruments. As the makers of instruments must necessarily try their tables before glueing them, it will be useful to enter into some details as to the method of determining the sounds they give.
3If we take a square plate of deal, having two of its sides parallel to the fibres, and if we make it vibrate normally so as to produce two nodal lines parallel to the direction of the fibres, we shall produce a certain sound; if we now turn it and cause it to vibrate so as to produce two parallel nodal lines at right angles to the fibres, the sound will be different, although the mode of division is the same. In one case the plate is deflected in the direction of the fibres, and in the other perpendicularly, or rather at right angles to this direction. The resistance to flexion being different in these two directions, the sound must change. But we can make the plate produce a nodal figure, consisting of two nodal lines at right angles to one another, and
The computer misreads some letters and numbers. Where a name matters to you, read the scan.