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Expired
Application number
Inventor
Wolf Heilbrunn
Simon Blueth
Wilhelm Pape
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Individual
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Individual
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Publication of GB190611634ApublicationCriticalpatent/GB190611634A/en
Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof
(AREA)
Auxiliary Devices For Music
(AREA)
Abstract
11,634. Heilbrunn, W., and Bl³th, S., [trading as Heilbrunn S÷hne, K.], and Pape, W. Oct. 31, 1905, [date applied for under Patents Act, 1901]. Automatic instruments. - P n e u - matic playing- apparatus for keyb o a r d musical instruments is arranged to ensure rapidity of action together with accurate regulation of the strength of tone. A small passage k leads from the tracker to the primary pneumatic, and the double valve c, operated by the primary pneumatic, controls a secondary pneumatic d to which the valve e of the motor pneumatic g is directly connected. The vacuum in the wind-chest b is maintained constant, while that in the wind-chest h is varied to regulate the tone.
GB190611634D1905-10-311906-05-18Improvements in and connected with Mechanically Played Key-board Musical Instruments.
ExpiredGB190611634A
(en)