Books › A descriptive catalogue of the musical instruments recently exhibited at the Royal Military Exhibition, London, 1890 …, 1891 › scan 247
Scan 247
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 227. See the scan on archive.org.
1instrument makers, the patent having expired long since. The piston, or pump, is made of a single tube of metal only; the air-passages are fastened into it with silver solder. The spindle and spring were also included in the patent. Previous to this valves had been made of two tubes, one placed inside the other, the inner tube being previously fitted with the air-passages. The extra weight of this latter arrangement, and its consequent influence upon rapid execution, is of course evident.
38. A sectional model of the "Compensating Pistons" invented by Mr. D. J. Blaikley, and made by Messrs. Boosey and Co. The compensating pistons are described at length in the introduction to this section.
59. Two models of the "Cylinder" action. This arrangement is largely used in Germany and Austria. The pump is replaced by a four-way cock of brass, turned perfectly true, and moved by a series of cranks connected with a key. The action is extremely delicate, but for solo playing has many advantages, not the least being the very rapid and singularly clear shake of which it is capable. Indeed, the rapidity of a shake produced thus can be equalled only by that upon the flute.
7NOTE.—As it has been found almost impracticable to adopt a uniform scheme of comparative pitch notation for instruments of all families, described in this work, without danger of misconceptions arising in certain important cases, the following may be useful. The notation shows in real sounds the 4th harmonics produced: the 4th harmonic being the usual tuning note upon most brass instruments.
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