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English direct lever grand action, developed by Broadwood from Backers (1884)

English direct lever grand action, developed by Broadwood from Backers (1884).png Action by Andreas and Nanette (Stein), Streicher Viennese escapement (1794)ThumbnailsDouble repetition action of Sebastian Erard as used by S. & P. Erard, ParisAction by Andreas and Nanette (Stein), Streicher Viennese escapement (1794)ThumbnailsDouble repetition action of Sebastian Erard as used by S. & P. Erard, ParisAction by Andreas and Nanette (Stein), Streicher Viennese escapement (1794)ThumbnailsDouble repetition action of Sebastian Erard as used by S. & P. Erard, Paris

 1. Key.
 2. Jack.
 3. Jack operating spring.
 4. Rail and cushion limiting travel of jack.
 5. Button and screw regulating escapement of hammer.
 6. Hammer-butt with operating notch.

 7. Hammer-butt flange.
 8. Hammer-shank.
 9. Hammer-head.
10. Check.
13. Action-rails.

Author
Theory and Practice of Piano Construction
With a Detailed, Practical Method for Tuning
By William B White
Published in 1906
Available from gutenberg.org
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