Recorder

DETAILED DESCRIPTION Accordingly the present invention provides in a wind-instrument such as a recorder having a mouthpiece, a core disposed in the mouthpiece, a blowing duct in the mouthpiece, a lower wall face of the blowing duct being provided by the core, the improvement comprising forming at least that portion of the core which provides the lower wall face of the blowing duct from dimensionally stable and absorbent material.
For the purpose of the invention in principle it is possible for a large number of non-deforming absorbent materials to be used, such as, for example, porous ceramics or porous plastics.
Surprisingly hardened plaster has been found to be an especially suitable material.
This proposal avoids the use of additional components such as platelets which need to be fixed by the adhesive in the vicinity of the blowing duct.
Instead the absorption capability is incorporated into a single component which in any case must be present as a constituent of the recorder and which is not affixed by adhesive but is held as a tight fit in the central passage through the headpiece.
All the deficiencies attributable to the unsatisfactory properties of adhesines now no longer occur.
In addition by this proposal, the volume of the absorbent material is substantially so increased that a larger quantity of introduced humidity can be absorbed.
This enables the musical quality of the recorder itself to be maintained over unusually long periods of play.
It is of course necessary with the recorder having an absorbent core for an opportunity to be provided for the blowing duct to be later dried out.
This however does not present any problem, because the core, at least in its end surface which extends towards the body tube, possesses an additional (additional, by comparison to the glued-in platelets) evaporation surface, through which the absorbed humidity can escape.
Such a mouthpiece is now extremely easy to maintain in good repair in the case of damage to the porous core which constitutes approximately one half of the blowing duct boundary, since the core may be replaced in a simple manner