Catholic - Historic Brass Society

UTLEY & KLAUS
125
Utley Collection (Figure 6a, b) and one short-model fluegelhorn of presumably Bavarian
origin in the private collection of Maximilian Goldgruber (Figure 39), have this feature of
interchangeability.
Figure 39
Fluegelhorn, unsigned, Bavaria?, ca. 1890 (Goldgruber Collection).
The constructional characteristic of the interchangeable valve order can be seen in
Figure 39, in the equal length of the internal part of the first and the second valve slides and
their receivers. They may be either moving inner slides and equal-length outer slide
receivers, as on this Bavarian fluegelhorn; or moving outer slides, as on the Bradshaw
cornopean in the Webb collection—in which case equal length of the inner slide tube
receivers is required.
The situation concerning the valve slides in the fixed valve order is more complex and
partly deceiving. Apart from instruments with no slides or just one slide, where the fixed
design is obvious at first glance, four different constructions of the moving slides can be
distinguished:
outer slides for both valves
inner slides for both valves
inner slides for one valve, outer slides for the other
one inner and one outer slide for each valve.