GB469102A - Piano action - Google Patents

Piano action

Info

Publication number
GB469102A
GB469102A GB34660/35A GB3466035A GB469102A GB 469102 A GB469102 A GB 469102A GB 34660/35 A GB34660/35 A GB 34660/35A GB 3466035 A GB3466035 A GB 3466035A GB 469102 A GB469102 A GB 469102A
Authority
GB
United Kingdom
Prior art keywords
key
repetition lever
jack
spring
wippen
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB34660/35A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB34660/35A priority Critical patent/GB469102A/en
Publication of GB469102A publication Critical patent/GB469102A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10CPIANOS, HARPSICHORDS, SPINETS OR SIMILAR STRINGED MUSICAL INSTRUMENTS WITH ONE OR MORE KEYBOARDS
    • G10C3/00Details or accessories
    • G10C3/16Actions
    • G10C3/24Repetition [tremolo] mechanisms
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10CPIANOS, HARPSICHORDS, SPINETS OR SIMILAR STRINGED MUSICAL INSTRUMENTS WITH ONE OR MORE KEYBOARDS
    • G10C3/00Details or accessories
    • G10C3/16Actions
    • G10C3/22Actions specially adapted for grand pianos
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10CPIANOS, HARPSICHORDS, SPINETS OR SIMILAR STRINGED MUSICAL INSTRUMENTS WITH ONE OR MORE KEYBOARDS
    • G10C3/00Details or accessories
    • G10C3/16Actions
    • G10C3/18Hammers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Golf Clubs (AREA)

Abstract

469,102. Pianofortes. FINHOLM, W. S. Dec. 13, 1935, No. 34660. [Class 88 (ii)] In a repetition action for a pianoforte, the jack 35, Fig. 1, acts on the hammer 22 through a knuckle 39 on the repetition lever 32 which lever is pivoted on the flinge 25 at a point 33 spaced from the pivot 30 of the wippen 31 so that the wippen and the repetition lever move through eccentric arcs. A spring 45 carried by the repetition lever maintains the contact both of the repetition lever with the hammer and of the wippen with the key. In this construction, as the parts are raised on key actuation, the spring 45 bows, and by its turned over end 47, Fig. 6, causes the escapement of the jack 35 from the knuckle 39. On release of the key, the spring 45 restores the jack by acting on its tail 37, and a hook member 60 on the wippen assists to draw the repetition lever down. A second spring 50 is carried by the repetition lever 32 and held at the other end by an adjusting screw 51 so as also to tend to lift the repetition lever. The two springs 45, 50 may be made integral, passing through the repetition lever, Fig. 7 (not shown). In Fig. 8, a "set-off " button 146 is provided for the jack, the spring 135, of which the tension is adjusted by a screw 138, sliding on the tail 130 of the jack and assisting in the return movement thereof only. The balance pin 70, Fig. 3, for the key 11 has a key-supporting collar 76 of felt and is screwed into or out of the key-frame 10 by a squared end 12 in levelling the keys.
GB34660/35A 1935-12-13 1935-12-13 Piano action Expired GB469102A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB34660/35A GB469102A (en) 1935-12-13 1935-12-13 Piano action

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB34660/35A GB469102A (en) 1935-12-13 1935-12-13 Piano action

Publications (1)

Publication Number Publication Date
GB469102A true GB469102A (en) 1937-07-13

Family

ID=10368393

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34660/35A Expired GB469102A (en) 1935-12-13 1935-12-13 Piano action

Country Status (1)

Country Link
GB (1) GB469102A (en)

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