Books › A descriptive catalogue of the musical instruments recently exhibited at the Royal Military Exhibition, London, 1890 …, 1891 › scan 214
Scan 214
A descriptive catalogue of the musical instruments recently exhibited at the Royal Military Exhibition, London, 1890 …, 1891
8 lines. Read by computer on 1 October 2026. Printed page 194. See the scan on archive.org.
1valve notes and their harmonics are perfectly true. The registre can be also applied as a transposer, when it becomes a fourth valve, and is placed horizontally at the side and moved by a lever. The annexed woodcut will explain this; the valve is in its normal position; the dotted lines show the position when the lever is depressed; the actuating touch-piece is placed upon the reverse side, and hence is not visible. The exact arrangement of the air passages is very ingenious, but is of too complicated a nature to be described at length here.
3A different compensating arrangement is found in the cornet invented by the well-known artist M. Arban, and for some time adopted at the Paris Conservatoire. M. Arban's system is described more particularly in a subsequent page, and therefore needs only passing mention here.
5Another compensating device consists in applying a set of valves to the slide trombone or trumpet. The instrument can thus be used either as a slide or valve instrument; in the latter case the slide can be employed as a compensator.
7Whilst speaking of valved instruments this article would be incomplete if it failed to mention several applications of a single valve to a slide instrument. This single valve has, in the case of the trombone, been used variously; an arrangement by which the air column thus brought into use lowered the pitch one fourth, was constructed by M. Besson, with the object of lessening the distance required between the shifts. A trombone constructed with this extra valve gave 10 positions instead of seven, and the usual length of the slide was therefore unnecessary. Similar applications have been made both to the trumpet and cornet by M. Antoine Courtois, and shake valves, giving a tone or semitone difference in pitch, are frequently applied to the slide trombones used by American and French solo players.
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