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
GB6305169A
Inventor
Sven Birger Emanuel Lager
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.)
NORDISKA PIANO AB
Original Assignee
NORDISKA PIANO AB
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 NORDISKA PIANO ABfiledCriticalNORDISKA PIANO AB
Priority to GB6305169ApriorityCriticalpatent/GB1273620A/en
Publication of GB1273620ApublicationCriticalpatent/GB1273620A/en
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)
Stringed Musical Instruments
(AREA)
Abstract
1,273,620. Keyboard frame. NORDISKA PIANO A.B. 29 Dec., 1969, No. 63051/69. Heading G5J. A keyboard frame comprises a balance rail 10 and a front rail 11 fixed to a supporting structure, consisting of transverse and support beams 8, 9, by screws or set screws to be vertically adjustable. Spacers may be used for adjustment. Rear rails 13, shown welded, may be attached by screws. Rails 10 and 13 are filled with wood 13, laminated or otherwise treated to be unaffected by climatic changes, supporting guiding pins 5, 7, and avoiding resonance in the rails. The rails may be moulded in solid reinforced plastics. The beams 8, 9 may consist of welded metal sections, or the members 8, 9, 10, 11, 12 may be moulded in one or more of cast iron, light metal or reinforced plastics. The pads 15, 16 are of felt, leather respectively.
GB6305169A1969-12-291969-12-29Improvements in or relating to keyboard frames
ExpiredGB1273620A
(en)
Device for handling and placing a prefabricated frame of building openings, such as windows, doors, doors, windows or windows, windows (Machine-translation by Google Translate, not legally binding)