Mounting arrangement for a key shaft in a musical instrument

Details Mounting arrangement for a key shaft in a musical instrument Mounting arrangement for a key shaft in a musical instrument

1992-06-15

1994-04-05

Gellner, Michael L.

Music

Instruments

Wind

84385R, G10D 700, G10D 708

Patent

active

052994864

ABSTRACT:
A mounting arrangement for the key shaft of a musical instrument which has a finger pad and a key attached to the shaft for operating a valve on the instrument when the finger pad is moved is herein disclosed. The mounting arrangement includes a bearing at each end of the shaft, a blind hole in each end of the shaft, an elongated tapered pin in each blind hole, a spring in each blind hole urging the respective pin outwardly, and a tapered bore in each bearing receiving the respective pin. Also, each bearing has an extension to the bore, forming a lubrication passage.

REFERENCES:
patent: 1345486 (1920-07-01), Gulick
patent: 2090011 (1937-08-01), Selmer
patent: 2744435 (1956-05-01), Anderson et al.
patent: 2895578 (1959-07-01), Winchell
patent: 3421398 (1969-01-01), Whiteside et al.
patent: 3865005 (1975-02-01), Carree

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