GB667014A - Improvements in or relating to a piano action - Google Patents
Improvements in or relating to a piano actionInfo
- Publication number
- GB667014A GB667014A GB311650A GB311650A GB667014A GB 667014 A GB667014 A GB 667014A GB 311650 A GB311650 A GB 311650A GB 311650 A GB311650 A GB 311650A GB 667014 A GB667014 A GB 667014A
- Authority
- GB
- United Kingdom
- Prior art keywords
- wippen
- opening
- jack
- wedge
- action
- 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)
- Body Structure For Vehicles (AREA)
- Seats For Vehicles (AREA)
- Hinges (AREA)
Abstract
667,014. Pianofortes. ROLLINSON, E. W. (Pratt, Read, & Co., Inc.). Feb. 7, 1950. No. 3116/50, Class 88 (ii). In a pianoforte action, the usual pin-and-bush pivots are replaced by knife-edge connections with the object of increasing the speed of operation. As shown, Figs. 1, 3, 5, a flange 27 secured to a rail 10 has wedge-shaped portions 30 on either side of a projecting portion 34 which extends through an opening 35 in a, wippen 12. The edges 31 of the wedge-shaped portions 30 engage the lowest points 32 of grooves 33 formed in the wippen 12 on either side of the opening 35. A leaf spring 40 passes through the wippen 12 below its upper surface 41 and through an opening in the flange 27, engaging the edge 37 of a wedge 36 in the opening and thereby holding the wippen 12 and flange 27 in engagement. The edges 31. and 37 are in alignment. A similar connection is provided between the wippen 12 and a jack 15, a single leaf spring 40 being used for both connections. Alternatively, two separate leaf springs may be used, and by slightly offsetting the two knifeedges 45, 49 on the jack 15, Fig. 7, the leaf spring 51 may be enabled to hold the jack 15 against the hammer butt so that the usual spring 28, Figs. 1, 3, 5, may be dispensed with. Other moving parts of the action may be pivoted in a similar fashion, and the action may. be constructed of metal or plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB311650A GB667014A (en) | 1950-02-07 | 1950-02-07 | Improvements in or relating to a piano action |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB311650A GB667014A (en) | 1950-02-07 | 1950-02-07 | Improvements in or relating to a piano action |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB667014A true GB667014A (en) | 1952-02-20 |
Family
ID=9752215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB311650A Expired GB667014A (en) | 1950-02-07 | 1950-02-07 | Improvements in or relating to a piano action |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB667014A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4414100A1 (en) * | 1994-04-22 | 1995-10-26 | Helmut Karl | Damping mechanism unit for upright piano |
| DE4414099A1 (en) * | 1994-04-22 | 1995-10-26 | Helmut Karl | Transmission mechanism for upright piano damping |
-
1950
- 1950-02-07 GB GB311650A patent/GB667014A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4414100A1 (en) * | 1994-04-22 | 1995-10-26 | Helmut Karl | Damping mechanism unit for upright piano |
| DE4414099A1 (en) * | 1994-04-22 | 1995-10-26 | Helmut Karl | Transmission mechanism for upright piano damping |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB667014A (en) | Improvements in or relating to a piano action | |
| GB488760A (en) | Improvements relating to piano and like musical instrument cases provided with hinged tops | |
| GB1519918A (en) | Sostenuto systems for pianos | |
| US2193716A (en) | Piano action | |
| GB699826A (en) | Improvements in and relating to pianos | |
| US2700914A (en) | Piano key action | |
| GB826776A (en) | Improvements in or relating to pianoforte constructions | |
| GB331444A (en) | Improvement in upright pianos | |
| GB313836A (en) | Improvements in and relating to stays for the hinged lids or covers of gramophones, boxes, and the like | |
| GB491985A (en) | Improvements in or relating to upright pianofortes | |
| US922828A (en) | Pianissimo device. | |
| US1180675A (en) | Piano-action. | |
| GB342163A (en) | Ball bearing arrangement, more particularly for the tone arm of talking machines | |
| GB468960A (en) | Improvements in or relating to miniature pianos | |
| GB600625A (en) | Improvements in pianos | |
| US1391054A (en) | Bracket for grand-piano actions | |
| GB538527A (en) | Improvements in apparatus for recording and reproducing sound | |
| GB351890A (en) | Improvements in or relating to cases for violins and similar musical instruments | |
| GB898250A (en) | Improvements in or relating to upright pianos | |
| US2469668A (en) | Piano | |
| GB850647A (en) | Improvements in high speed tripping mechanisms | |
| GB479231A (en) | Improvements relating to lever actuated bolts for doors and the like | |
| GB470218A (en) | Anti-rattle dovetail for doors | |
| GB352885A (en) | An improved door stop or buffer | |
| ES216100A1 (en) | New system of operation of doors and contacts in elevators and lifting appliances in general (Machine-translation by Google Translate, not legally binding) |