US PATENT SUBCLASS 84 / 332
.~.~.~ Actions

Current as of: June, 1999
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84 /   HD   MUSIC

1  DF  INSTRUMENTS {9}
330  DF  .~ Wind {5}
331  DF  .~.~ Pipe organs {4}
332.~.~.~ Actions {8}
333  DF  .~.~.~.~> Stop chambers
334  DF  .~.~.~.~> Single chamber
335  DF  .~.~.~.~> Pneumatic details {1}
337  DF  .~.~.~.~> Electric
338  DF  .~.~.~.~> Electropneumatic {1}
*  DD  .~.~.~.~> Couplers {2}
342  DF  .~.~.~.~> Key valves
343  DF  .~.~.~.~> Stop actions {1}

DEFINITION

Classification: 84/332

Pipe-organ actions not belonging to a specific subclass.

(1) Note. The speaking of an organ-pipe is usually controlled by the joint operation of devices actuated or controlled, respectively, by a key and a stop. These devices (excluding the keys) are collectively known as the "action". These actions and the corresponding wind-chests are of three types: (1) the older, in which the top of the wind-chest has as many grooves with pallets to control them as there are keys and as many perforated slides crossing the grooves as there are speaking-stops; (2) the type in which there are as many stop-chambers as stops, each carrying a series or "register" of pipes and each controlled by a valve or "ventil", every pipe having its own valve controlled by a key, and (3) the type in which all the pipes stand on a common or "universal" wind-chest and each pipe has its own valve, which is jointly controlled by a key and a draw-stop. In all three types the controlling means may be mechanical, electrical, pneumatic, or electropneumatic. For details of such means see this class, subclass 335, and following subclasses. Patents for combinations of the first type are in this subclass.