GB169021A - Improvements in repetition actions for pianos - Google Patents
Improvements in repetition actions for pianosInfo
- Publication number
- GB169021A GB169021A GB1680220A GB1680220A GB169021A GB 169021 A GB169021 A GB 169021A GB 1680220 A GB1680220 A GB 1680220A GB 1680220 A GB1680220 A GB 1680220A GB 169021 A GB169021 A GB 169021A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hammer
- check
- key
- movement
- jack
- 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
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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
169,021. Eastwood, R. June 22, 1920 Pianoforte actions. - In a repetition action for pianofortes, a counter check 15 is provided with means adapted to engage with the check 22 so that during the first part of the release movement of the key 1 after a note has been sounded, the counter check and the hammer 13 are supported by the check, thereby permitting the reengagement of the jack 10 with the hammer butt 13<a>. In the construction shown, the means provided comprise a lip 23 which rides over the check during a small initial release movement of the key, the hammer having little or no rearward movement. On the jack 10 a piece of wire 18 is adjustably fixed, one end of which 18<e> is bent at right-angles and engages with the counter check 15 when the key 1 is kept depressed, thereby preventing forward movement of the hammer. Braking means may be provided in conjunction with the hammer comprising a shoe 24 pivotally connected by an arm 25 to the hammer butt 13a and adapted to engage frictionally with a rail 26.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1680220A GB169021A (en) | 1920-06-22 | 1920-06-22 | Improvements in repetition actions for pianos |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1680220A GB169021A (en) | 1920-06-22 | 1920-06-22 | Improvements in repetition actions for pianos |
Publications (1)
Publication Number | Publication Date |
---|---|
GB169021A true GB169021A (en) | 1921-09-22 |
Family
ID=10083916
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1680220A Expired GB169021A (en) | 1920-06-22 | 1920-06-22 | Improvements in repetition actions for pianos |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB169021A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4840101A (en) * | 1987-03-18 | 1989-06-20 | Fernand Kummer | Escapement mechanism for upright piano |
-
1920
- 1920-06-22 GB GB1680220A patent/GB169021A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4840101A (en) * | 1987-03-18 | 1989-06-20 | Fernand Kummer | Escapement mechanism for upright piano |
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