Organ with variable key tension
AssigneeCasavant FrèRes
InventorsDenis Blain, Jens Peter Petersen
Life of this patent
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Abstract
An organ includes keys, a windchest in fluid flow communication with a wind supply. A windchest pallet disposed inside the windchest and connected to the key. An auxiliary chamber is independent from the windchest and in fluid flow communication with a wind regulator. An auxiliary pallet is disposed inside the auxiliary chamber and connected to the key. A first adjustment element controls wind generated from the wind regulator. A bias element urges the auxiliary pallet in a closed position. A second adjustment element controls tension exerted by the bias element on the auxiliary pallet.
Claims22
An organ comprising
- a key;
- a windchest in fluid flow communication with a wind supply;
- a windchest pallet disposed inside the windchest and connected to the key;
- an auxiliary chamber independent from the windchest and in fluid flow communication with a wind regulator;
- an auxiliary pallet disposed inside the auxiliary chamber and connected to the key;
- a first adjustment element for controlling wind generated from the wind regulator;
- a bias element for urging the auxiliary pallet in a closed position;
- and
- a second adjustment element for controlling tension exerted by the bias element on the auxiliary pallet.
A device for controlling a tension of a key of an organ, comprising:
- an auxiliary chamber adapted to be independent from a windchest of the organ, the auxiliary chamber being configured to be in fluid flow communication with a wind regulator;
- an auxiliary pallet disposed inside the auxiliary chamber and connected to the key;
- a first adjustment element for controlling wind generated from the wind regulator;
- a bias element for urging the auxiliary pallet in a closed position;
- and
- a second adjustment element for controlling tension exerted by the bias element on the auxiliary pallet.
A method for controlling key tension of keys of an organ, comprising:
- controlling air pressure exerted on an auxiliary pallet of an auxiliary chamber that is independent from a windchest, the auxiliary pallet being connected to said key;
- and
- controlling tension exerted on a bias element that urges the auxiliary pallet in a closed position, the bias element being connected to the key.
A method of controlling key tension of a key of an organ, comprising:
- connecting an auxiliary pallet to the key, the auxiliary pallet being disposed inside an auxiliary chamber, the auxiliary chamber being adapted to be independent of a windchest of the organ;
- controlling wind generated inside the auxiliary chamber;
- and
- controlling tension exerted by a bias element on the auxiliary pallet.
Dependencies are inferred from the claim text.