GB333609A - Improvements relating to upright pianos and more particularly to check actions therefor - Google Patents

Improvements relating to upright pianos and more particularly to check actions therefor

Info

Publication number
GB333609A
GB333609A GB15343/29A GB1534329A GB333609A GB 333609 A GB333609 A GB 333609A GB 15343/29 A GB15343/29 A GB 15343/29A GB 1534329 A GB1534329 A GB 1534329A GB 333609 A GB333609 A GB 333609A
Authority
GB
United Kingdom
Prior art keywords
hammer
lever
arm
back check
hanek
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
GB15343/29A
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
Publication of GB333609A publication Critical patent/GB333609A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10C—PIANOS, HARPSICHORDS, SPINETS OR SIMILAR STRINGED MUSICAL INSTRUMENTS WITH ONE OR MORE KEYBOARDS
    • G10C3/00—Details or accessories
    • G10C3/16—Actions
    • G10C3/24—Repetition [tremolo] mechanisms
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10C—PIANOS, HARPSICHORDS, SPINETS OR SIMILAR STRINGED MUSICAL INSTRUMENTS WITH ONE OR MORE KEYBOARDS
    • G10C3/00—Details or accessories
    • G10C3/16—Actions
    • G10C3/161—Actions specially adapted for upright pianos

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Electrophonic Musical Instruments (AREA)

Abstract

333,609. Hanek, R., Hanek, K., and Hofmann, J. C. Dec. 28, 1928, [Convention date]. No Patent granted (Sealing fee not paid). Pianoforte actions. - A repetition action for an up right pianoforte comprises an articulated lever with unequal arms 2<a>, 2<b> mounted on the back check 1 and held up against the bottom edge of the back check felt 4 by a spring 3. When the key is pressed, and during the approach of the hammer towards the string, the back check 1 moves towards the left and the arm 2b of the lever engages with the spoon piece 9 on the fixed rail 7 and causes the arm 2<a> of the lever to move relatively downwards. The hammer rebounding from the string is arrested owing to the stud 6 on the hammer balance 5 contacting with the arm 2<a>. When the key is released the lever 2<a>, 2<b>, regains its original position and lifts the hammer sufficiently to allow the jack 10 to slip into position under the hammer butt 11 ready for a fresh actuation.
GB15343/29A 1928-12-28 1929-05-16 Improvements relating to upright pianos and more particularly to check actions therefor Expired GB333609A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT333609X 1928-12-28

Publications (1)

Publication Number Publication Date
GB333609A true GB333609A (en) 1930-08-18

Family

ID=3671871

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15343/29A Expired GB333609A (en) 1928-12-28 1929-05-16 Improvements relating to upright pianos and more particularly to check actions therefor

Country Status (1)

Country Link
GB (1) GB333609A (en)

Similar Documents

Publication Publication Date Title
GB333609A (en) Improvements relating to upright pianos and more particularly to check actions therefor
US1866152A (en) Piano action
US2329009A (en) Piano action
US2116117A (en) Piano
US2524835A (en) Action for upright pianos
US1301908A (en) Pianoforte-action.
US2273789A (en) Upright piano action
GB325148A (en) Improvements in piano actions
US2109192A (en) Upright piano action
GB225000A (en) Improvements relating to pianofortes
US2267538A (en) Piano action
GB226616A (en) Improvements in or connected with pianoforte actions
GB725638A (en) Improvements in pedal actuated drum sticks
US2469308A (en) Vertical piano action
US1829314A (en) Grand piano action
GB383051A (en) Improvements in and relating to traps for mice and other small animals
US1803890A (en) Grand piano action
GB461337A (en) Improvements to pianofortes
US2280982A (en) Repeat action for grand pianos
GB699826A (en) Improvements in and relating to pianos
US1558817A (en) Piano action
US2230698A (en) Spinet piano action
GB590661A (en) Improvements relating to pianoforte actions
GB237022A (en) Improvements in upright piano actions and the like
US2193715A (en) Piano action