GB1189800A - Drum Beater Device. - Google Patents
Drum Beater Device.Info
- Publication number
- GB1189800A GB1189800A GB9750/69A GB975069A GB1189800A GB 1189800 A GB1189800 A GB 1189800A GB 9750/69 A GB9750/69 A GB 9750/69A GB 975069 A GB975069 A GB 975069A GB 1189800 A GB1189800 A GB 1189800A
- Authority
- GB
- United Kingdom
- Prior art keywords
- standards
- housings
- shaft
- spring
- detents
- 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
- G10D—STRINGED MUSICAL INSTRUMENTS; WIND MUSICAL INSTRUMENTS; ACCORDIONS OR CONCERTINAS; PERCUSSION MUSICAL INSTRUMENTS; AEOLIAN HARPS; SINGING-FLAME MUSICAL INSTRUMENTS; MUSICAL INSTRUMENTS NOT OTHERWISE PROVIDED FOR
- G10D13/00—Percussion musical instruments; Details or accessories therefor
- G10D13/10—Details of, or accessories for, percussion musical instruments
- G10D13/11—Pedals; Pedal mechanisms
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Centrifugal Separators (AREA)
Abstract
1,189,800. Drum beaters. J. R. RAMSEY. 24 Feb., 1969, No. 9750/69. Heading G5J. [Also in Division F2] A drum beater device comprises a base portion including a pair of upright standards 2, 3, a shaft 24 j ournalled in said standards and supporting a beater element 27, first and second spring members each anchored at one end to first and second spring housings 30, 31 and at the other end to the shaft 24, each of the housings 30, 31 being rotatably mounted on one of the standards and being provided with a series of detents (Figs. 3 and 4, not shown) and locking means e.g. pin springs, carried by said standards, spring biased into engagement with one of the detents whereby the opposing spring forces acting on said shaft may be varied by the selective rotation and locking in place of said housings. The standards terminate in circular plates 28, 29 having annular shoulders each having a circumferential groove corresponding with an internal groove in the cup-shaped housing for the joint reception of a radially expanding ring for retaining said housing against axial movement (Fig. 7A, not shown). The device is foldable in its entirety into compact form.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9750/69A GB1189800A (en) | 1969-02-24 | 1969-02-24 | Drum Beater Device. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9750/69A GB1189800A (en) | 1969-02-24 | 1969-02-24 | Drum Beater Device. |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1189800A true GB1189800A (en) | 1970-04-29 |
Family
ID=9878054
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9750/69A Expired GB1189800A (en) | 1969-02-24 | 1969-02-24 | Drum Beater Device. |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1189800A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2333821A (en) * | 1998-01-28 | 1999-08-04 | Audience Systems Limited | Adjustable coil spring assembly |
ES2785676A1 (en) * | 2020-02-18 | 2020-10-07 | Univ Madrid Politecnica | ELASTIC DEVICE WITH VARIABLE RIGIDITY, ACTUATOR WITH VARIABLE RIGIDITY AND COUPLING WITH VARIABLE RIGIDITY (Machine-translation by Google Translate, not legally binding) |
ES2797550A1 (en) * | 2020-02-18 | 2020-12-02 | Univ Madrid Politecnica | ELASTIC DEVICE WITH VARIABLE RIGIDITY, ACTUATOR WITH VARIABLE RIGIDITY AND COUPLING WITH VARIABLE RIGIDITY (Machine-translation by Google Translate, not legally binding) |
-
1969
- 1969-02-24 GB GB9750/69A patent/GB1189800A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2333821A (en) * | 1998-01-28 | 1999-08-04 | Audience Systems Limited | Adjustable coil spring assembly |
ES2785676A1 (en) * | 2020-02-18 | 2020-10-07 | Univ Madrid Politecnica | ELASTIC DEVICE WITH VARIABLE RIGIDITY, ACTUATOR WITH VARIABLE RIGIDITY AND COUPLING WITH VARIABLE RIGIDITY (Machine-translation by Google Translate, not legally binding) |
ES2797550A1 (en) * | 2020-02-18 | 2020-12-02 | Univ Madrid Politecnica | ELASTIC DEVICE WITH VARIABLE RIGIDITY, ACTUATOR WITH VARIABLE RIGIDITY AND COUPLING WITH VARIABLE RIGIDITY (Machine-translation by Google Translate, not legally binding) |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLE | Entries relating assignments, transmissions, licences in the register of patents | ||
PCNP | Patent ceased through non-payment of renewal fee |