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
GB29496/26A
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 IndividualfiledCriticalIndividual
Publication of GB270578ApublicationCriticalpatent/GB270578A/en
G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
G11B33/02—Cabinets; Cases; Stands; Disposition of apparatus therein or thereon
Landscapes
Motor Or Generator Frames
(AREA)
Abstract
270,578. W³thrich, E. Sept. 30, 1926, [Convention date]. Speed - regulating. - The speed regulator is insulated by providing a layer of insulating material 5, such as cork, between its mounting bracket 2 and the foundation plate 1, and the fixing screws pass through brushes 6 of similar insulating material. The worm wheel 3<a> through which the regulator is driven is made of fibre or raw hide.
GB29496/26A1926-09-301926-11-22Improvements in gramophones
ExpiredGB270578A
(en)
Device for the production of an electric control voltage varying essentially according to an enveloping of an acoustic oscillation to accelerate, to record the reproduction of the sounds