Bow & Bridge Violin and bow makers, as the old books printed them

Books › A descriptive catalogue of the musical instruments recently exhibited at the Royal Military Exhibition, London, 1890 …, 1891 › scan 213

Scan 213

A descriptive catalogue of the musical instruments recently exhibited at the Royal Military Exhibition, London, 1890 …, 1891

6 lines. Read by computer on 1 October 2026. Printed page 193. See the scan on archive.org.

1tubing into use by the depression of a supplementary valve. Improving upon this, M. Mahillon succeeded in constructing an automatic arrangement, of which a diagram (an exact facsimile, reduced in scale, from that in the patent specification) is annexed, and which he designated his automatic regulating pistons.
3In the diagram it will be seen that when the third piston is employed alone, or in combination with the second, the air column passes through the branch A of the additional tubing attached to the third piston, enters the first valve at C, and, passing through the bend D into the branch E, rejoins the main tubing F G. The additional tube A D E is of the exact theoretical length required to produce a lowering in pitch of a tone and a half. Each time, however, that the first and third pistons are employed in combination, the air column passes through the branch A of the additional tubing, and enters the first valve at C, whence it passes into the bend H (which is longer than the bend D to a degree necessary to ensure the exact theoretical length required, when the two additional loops of tubing are employed simultaneously) to E, rejoining the main tubing F G.
5An improvement upon the "registre" of Gustav Besson, already mentioned, has been patented in the last year by his successors (Patent No. 6649, A.D. 1890). In this arrangement the third valve itself acts as the registre, and, when used in conjunction with any of the other valves, causes the air column to pass into a duplicate set of valve tubings of the requisite theoretical length. Hence the combinational

The computer misreads some letters and numbers. Where a name matters to you, read the scan.