Image:Wornum5384.svg

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Wornum5384.svg‎ (SVG file, nominally 465 × 1224 pixels, file size: 27 KB)

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[edit] Summary

Description

detail, Robert Wornum's double action for the professional piano-forte
Source

Patent for improvements in piano-fortes - English patent no. 5,384
Date

July 4, 1826
Author

Robert Wornum (1780-1852)
Permission
(Reusing this image)

see below
Other versions reproduced in Lawrence Nalder, The Modern Piano The Gresham Press, Old Working, Surrey. 1927 p.120

c Socket, d Hammer, e Hammer ruler, f Hammer rail, g Sticker, e Damper wire and button, h Check lever, j Check, k k Hopper centre and mortoise bushed, lHopper spring fixed to sticker, m Dog spring fixed in hopper to keep the hammer from dancing after the blow, n Lifting wire for check fixed in sticker with worm and slipped into check lever : hole bushed.

[edit] Licensing

Public domain This image (or other media file) is in the public domain because its copyright has expired.

This applies to the United States, Canada, the European Union and those countries with a copyright term of life of the author plus 70 years.

Note that a few countries have copyright terms longer than 70 years: Mexico has 100 years, Colombia has 80 years, and Guatemala and Samoa have 75 years. This image may not be in the public domain in these countries, which moreover do not implement the rule of the shorter term. Côte d'Ivoire has a general copyright term of 99 years and Honduras has 75 years, but they do implement that rule of the shorter term.

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File history

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Date/TimeDimensionsUserComment
current21:24, 8 October 2007465×1,224 (27 KB)Mireut ({{Information |Description=Robert Wornum's double action for the professional piano-forte |Source=Patent for improvements in piano-fortes - English patent no. 5,384 traced by User:Mireut |Date=July 4, 1826 |Author=Robert Wornum (1780-1852) |Permission)
21:22, 8 October 2007507×1,277 (93 KB)Mireut ({{Information |Description=Robert Wornum's double action for the professional piano-forte |Source=Patent for improvements in piano-fortes - English patent no. 5,384 |Date=July 4, 1826 |Author=Robert Wornum (1780-1852) |Permission= |other_versions=reproduc)
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