GB190312963A - Improvements relating to Keys and Keyboards for Typewriters, Pianos, and like Machines or Instruments. - Google Patents
Improvements relating to Keys and Keyboards for Typewriters, Pianos, and like Machines or Instruments.Info
- Publication number
- GB190312963A GB190312963A GB190312963DA GB190312963A GB 190312963 A GB190312963 A GB 190312963A GB 190312963D A GB190312963D A GB 190312963DA GB 190312963 A GB190312963 A GB 190312963A
- Authority
- GB
- United Kingdom
- Prior art keywords
- keys
- pianos
- key
- instruments
- typewriters
- 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
Abstract
12,963. Laudenbach, J. H. June 9. Pianofortes.-The keys of pianos and other keyboard instruments are distinguished by means which affect the senses of sight, touch, hearing, or muscular effort, &c. The different keys may be made to present differences in appearance, such as colour, shape, or brilliance, &c. Various arrangements are provided for differentiating by touch or hearing, Fig. 1, or by muscular effort, such as springs, bellows, balls, lateral projections, &c. Fig. 2 shows a type-writer key having a disc J supported on it by a spring j, Fig. 3 a key having a cap or bellows K with a small orifice, and Fig. 7 a key with a ball M in a slot, which slot may be straight or circular &c., or may be replaced by a socket. Small rollers, discs, wires, or projections, &c. may be attached to the sides or ends of the keys as shown at 0 in Fig. 13 as applied to piano keys.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB190312963T | 1903-06-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB190312963A true GB190312963A (en) | 1904-04-14 |
Family
ID=32432006
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB190312963D Expired GB190312963A (en) | 1903-06-09 | 1903-06-09 | Improvements relating to Keys and Keyboards for Typewriters, Pianos, and like Machines or Instruments. |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB190312963A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5190287A (en) * | 1990-11-27 | 1993-03-02 | Kabushiki Kaisha Gakushu Kenkyusha | Jigsaw puzzle toy using blocks |
-
1903
- 1903-06-09 GB GB190312963D patent/GB190312963A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5190287A (en) * | 1990-11-27 | 1993-03-02 | Kabushiki Kaisha Gakushu Kenkyusha | Jigsaw puzzle toy using blocks |
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