Books › The Violin: A concise exposition of the general principles of construction.., 1871 › scan 123
Scan 123
The Violin: A concise exposition of the general principles of construction.., 1871
6 lines. Read by computer on 28 September 2026. No printed page number was found. See the scan on archive.org.
1parts, and trace the corners s s. Again, upon Q mark off 24 parts b b, with those as centres prolong the curves from R through c c to d d, and upon N mark off 16 1/2 parts t t, with those as centres, and radii to the parts where P joins i, trace the curve u to d d. Finally open the compass 19 1/2 parts from the point 49, and trace the corners d d. The angles of the curves between L L and M M must be formed into a proper shape by a file.
3THE PROPER ELEVATION FOR THE ARCHINGS OF BACK AND BELLY.—For the longitudinal model of the arching, dress a piece of wood to the following dimensions:—15 inches long, 2 inches broad, and about 1/8 inch thick; divide it in the middle as at Fig. 30. Open the compass to three times the length of the perpendicular b, r r, Fig. 29, or 216 parts, and with this as a radius, from a perpendicular drawn through a, trace the curve b, a, c.
5THICKNESS OF THE BACK.—From 42 as a centre, set off 4 1/2 parts as a radius, and trace a circle; all the wood within this circle must be reduced very carefully to one part in thickness; then from the same centre 42, trace another circle with a radius of 12 parts, the thickness of the wood from the inner circle to the edge of this second circle must diminish very gradually to two-thirds of a part, and from the latter circle to the parts whereon
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