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
Application number
Inventor
Jean Henri Laudenbach
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
Application granted granted Critical
Publication of GB190312963A publication Critical patent/GB190312963A/en
Expired legal-status Critical Current

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.
GB190312963D 1903-06-09 1903-06-09 Improvements relating to Keys and Keyboards for Typewriters, Pianos, and like Machines or Instruments. Expired GB190312963A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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