Scan 68
How to Make a Violin, and Violin Notes by Ole Bull. Revised edition., 1910
4 lines. Read by computer on 3 September 2026. Printed page 58. See the scan on archive.org.
1arily placed with its outer side on a line parallel to the centre line or glue joint of the top, and at a distance from it about equal to one-half the width of the bridge, measured from the outer extremities of the feet. A slight spring is given to the ends of the bar, so that when glued to the top it produces an upward pressure at the centre, under the foot of the bridge. This pressure should equal the downward thrust of the bridge, the force of which will depend upon the angle of the strings over its top. Practice soon discovers a certain medium of spring which agrees fairly with a certain height of bridge.
3An entirely successful result is not always insured, but a positive failure is avoided. But in the case of the oblique bar, no such common factor can be found to fit all cases, even averagely well. Each instrument presents its own particular problem. The spring at each end must be accurately determined by mechanical means, which will take into account both the resistance of the top, due to its comparative strength of fibre and the resistance due to the form of
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