MAKE A MEME View Large Image 1842wornumfig4.svg en Diagrams of the second and first improvements from the specification of the English patent granted to Robert Wornum dated February 15 1842; traced and colorized by User Mireut Fig 4 sheet 3 from Robert Wornum ...
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Keywords: 1842wornumfig4.svg en Diagrams of the second and first improvements from the specification of the English patent granted to Robert Wornum dated February 15 1842; traced and colorized by User Mireut Fig 4 sheet 3 from Robert Wornum Improvements in the action of pianofortes English patent no 9 262 February 15 1842 Robert Wornum 1842-08-15 a key; b hammer; d hammer return spring; k spring lever; l strap of leather; m hammer rail; n rocking lever; p projection; q hopper; s damper wire; v damper lever; w damper lever axis PD-old Piano action
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