Books › A descriptive catalogue of the musical instruments recently exhibited at the Royal Military Exhibition, London, 1890 …, 1891 › scan 234
Scan 234
A descriptive catalogue of the musical instruments recently exhibited at the Royal Military Exhibition, London, 1890 …, 1891
18 lines. Read by computer on 1 October 2026. Printed page 214. See the scan on archive.org.
1418.
3EUPHONION, in B♭. With long fourth valve. The tubing in connection with the first, second, and third valves passes through the fourth valve. In the fourth valve there are extra passages, so placed that when the valve is down a duplicate set of tubing is brought into action with the first, second, and third valves. This duplicate set of tubings is tuned to agree with F, which becomes the pitch note of the instrument when the fourth valve is down. The extreme length of the fourth valve, and the fact that there are nine distinct passages through it, constitutes the weak point in this arrangement of pistons. This system was designed originally by Adolphe Sax. Stamped "Distin, London," and probably made about 1867.
5Lent by Messrs. Boosey and Co.
7419.
9TROMBONE, in B♭. Large calibre, with four compensating pistons. Made by Boosey and Co. With the fourth valve down this instrument can be used as a bass trombone in F; as by the compensating arrangement, the valve slides, on the depression of the fourth valve, are automatically adjusted to the lengths required for an instrument in F.
11This instrument was designed by Mr. D. J. Blaikley, and made as an experiment in 1874. The essential difference between the valve system employed, and any other previously designed on a "compensating" principle, lies in the reduction of the number of passages through the valves. The idea, as worked out for three-valve instruments, became the subject of the "Compensating Pistons" patent in 1878 (No. 4618), and described, in the introduction to this section, upon page 191.
13Lent by Messrs. Boosey and Co.
15420.
17CORNET, in B♭. By Antoine Courtois, with removeable echo attachment. This instrument is one of the original cornets of this maker, made about the year preceding his death.
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