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GB1079378A - Keyboard device - Google Patents

Keyboard device

Info

Publication number
GB1079378A
GB1079378A GB40410/65A GB4041065A GB1079378A GB 1079378 A GB1079378 A GB 1079378A GB 40410/65 A GB40410/65 A GB 40410/65A GB 4041065 A GB4041065 A GB 4041065A GB 1079378 A GB1079378 A GB 1079378A
Authority
GB
United Kingdom
Prior art keywords
bushings
openings
glue
nubs
key
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
GB40410/65A
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.)
PRATT READ AND CO Inc
Original Assignee
PRATT READ AND CO Inc
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 PRATT READ AND CO Inc filed Critical PRATT READ AND CO Inc
Publication of GB1079378A publication Critical patent/GB1079378A/en
Expired legal-status Critical Current

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
    • G10C3/10—Tuning pins; Tensioning devices
    • 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
    • G10C3/12—Keyboards; Keys

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Electrophonic Musical Instruments (AREA)

Abstract

1,079,378. Key For musical instruments. PRATT READ & CO. Inc. Sept. 22, 1965 [Oct. 6, 1964], No. 40410/65. Heading G5J. [Also in Division F2] Key 11 is guided in its rocking movement 11-11a by pins 13 and 25, which engage with resilient, low-friction plastics bushings 21 and 31 and slide in the elongated slots within them during the rocking, the bushings being held in openings 15 and 28 in the key by mechanical engagement of grooves in their outer surfaces with glue nubs in the interior walls of the openings. The nubs are of a space-filling glue, such as polyvinyl-chloride glue, which adheres to the walls of the openings, although it need not bond to the plastics bushings, which may be of ethylene/vinyl-acetate copolymer, tetrafluorethylene, fluorocarbon, silicone copolymers, rubber or other materials. The glue is applied to the ends of the moulded bushings or to those of the openings during assembly and forms suitable nubs as it hardens, adhering to the wood sufficiently to survive removal and replacement of the bushings.
GB40410/65A 1964-10-06 1965-09-22 Keyboard device Expired GB1079378A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US401929A US3248992A (en) 1964-10-06 1964-10-06 Keyboard device

Publications (1)

Publication Number Publication Date
GB1079378A true GB1079378A (en) 1967-08-16

Family

ID=23589835

Family Applications (1)

Application Number Title Priority Date Filing Date
GB40410/65A Expired GB1079378A (en) 1964-10-06 1965-09-22 Keyboard device

Country Status (2)

Country Link
US (1) US3248992A (en)
GB (1) GB1079378A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3738216A (en) * 1970-10-28 1973-06-12 Jasper Electronics Mfg Corp Keyboard for musical instruments
DE7105117U (en) * 1971-02-11 1971-05-27 Schuetze R TRAINING AND ARRANGEMENT OF KEY GUIDANCE ON PIANO CEMBALI AND DGL.
US4205583A (en) * 1977-12-12 1980-06-03 Cbs Inc. Keyboard construction for pianos
US4418605A (en) * 1980-06-25 1983-12-06 Pratt-Read Corporation Keyboard for musical instrument
JP4333509B2 (en) * 2003-09-12 2009-09-16 ヤマハ株式会社 Key structure
JP7206648B2 (en) * 2018-06-21 2023-01-18 カシオ計算機株式会社 keyboard instrument
DE102023200631B3 (en) 2023-01-26 2024-07-04 Piano-Schulz e.K. Arrangement with a first balance beam pin and at least one button

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US316023A (en) * 1885-04-21 Piano-action
US669729A (en) * 1900-11-17 1901-03-12 Frederick W Hedgeland Mounting for piano-keys.
US927945A (en) * 1908-08-21 1909-07-13 Pratt Read & Company Key for organs, pianos, &c.
GB139901A (en) * 1919-03-27 1920-03-18 John Collier Improvements in the keys of pianofortes, organs, and like musical instruments
FR545898A (en) * 1922-01-13 1922-10-23 Improvements in the construction of pianos, organs, harmoniums and similar instruments
US1813751A (en) * 1930-01-24 1931-07-07 Thomas J Malcolm Musical instrument key busher
FR926003A (en) * 1945-04-04 1947-09-19 Improvements made to the articulations of piano mechanics
US2815253A (en) * 1954-01-15 1957-12-03 Nylacore Corp Bearing liner
US3008779A (en) * 1959-06-03 1961-11-14 John D Spriggs Nylon lined bearings
US3033624A (en) * 1959-11-23 1962-05-08 Illinois Tool Works Retainer bushing
US3120146A (en) * 1961-06-02 1964-02-04 Pratt Read & Co Inc Musical instrument key
US3173329A (en) * 1962-06-22 1965-03-16 Edward R Camillucci Piano key actions

Also Published As

Publication number Publication date
US3248992A (en) 1966-05-03

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