Tuning pin apparatus having impediment function against the rewi

Details Tuning pin apparatus having impediment function against the rewi Tuning pin apparatus having impediment function against the rewi

1997-07-15

1999-02-09

Shoop, Jr., William M.

Music

Instruments

Stringed

84202, 84304, 84305, G10C 310

Patent

active

058697802

ABSTRACT:
A piano tuning pin apparatus for prevention of loosening of the piano string, i.e., of rewinding of a piano tuning pin, characterized by setting the tuning pin constructed additionally a brake structure having the impediment function against the rewinding on the circumference surface of the piano tuning pin and the fixing portion of pin having two putting pipes each other, to prevent loosening of the piano. Between a tuning hammer tip inserting part and a hole of the tuning pin, a brake structure is formed to take a projection having a suitable distance and height along with a circumference surface.

REFERENCES:
patent: 31589 (1861-03-01), Clark
patent: 1351616 (1920-08-01), Burke
patent: 2736224 (1956-02-01), Trinkle
patent: 3754494 (1973-08-01), Ticehurst
patent: 4398443 (1983-08-01), Kovach
patent: 4920847 (1990-05-01), Conklin, Jr.
patent: 5471902 (1995-12-01), Chaplin

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