Comparing Bluthner Patent Action With Standard Lever + Regulating The Patent Action.

Comparing Bluthner Patent action with Standard Lever (Whippen) + regulating the Patent action.

SOLD: Fully restored 230cm 1905 Bluthner grand; thoughts patent action vs lever

Tuning and Tech. Tips 2: Excerpt: Bluthner patent action regulation: the L-spring and the let-off:

Blüthner patent grand action model

Blüthner Patent action.

Heirloom Pianos

Bluthner Grand pt 2 - new hammers & regulating patent action

Blüthner Action

1907 Bluthner Grand Piano Action

Apex Piano Technicians Network

Bluthner VII grand piano after French polishing + patent action converted to roller/lever action.

Assessment of a Bluthner grand 175cm c1876 in rosewood; thoughts on this earlier design of Bluthner.

Assessment of a Bluthner style IV 150cm grand c1933 + common issue: action standards need replacing:

Bluthner style VII 190cm grand piano c1889 + regulating the Patent action spring

Blüthner Aliquot strung Boudoir Grand Piano with Blüthner patent action www.chilternpianos.co.uk

Chiltern Pianos

BEFORE AND AFTER: Action conversion from a Bluthner patent to modern roller; style VI 1912

Assessment of a Bluthner grand piano, 190cm 1910 rosewood + What key dip for patent actions? 9.5mm?

Bluthner 6ft 3in grand piano c1911 in rosewood; Bluthner patent action; some regulation

Assessment of a Bluthner style 10 grand piano 231cm with a replacement action cf. Patent action.

Bluthner Style 7 Grand from Chiltern Pianos

Chiltern Pianos