GB300704A - Improvements in sound-reproducing instruments - Google Patents

Improvements in sound-reproducing instruments

Info

Publication number
GB300704A
GB300704A GB2407228A GB2407228A GB300704A GB 300704 A GB300704 A GB 300704A GB 2407228 A GB2407228 A GB 2407228A GB 2407228 A GB2407228 A GB 2407228A GB 300704 A GB300704 A GB 300704A
Authority
GB
United Kingdom
Prior art keywords
links
pick
traverses
carried
sound
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
GB2407228A
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.)
COLUMBIA GRAPHOPHONE CO Ltd
Original Assignee
COLUMBIA GRAPHOPHONE CO Ltd
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 COLUMBIA GRAPHOPHONE CO Ltd filed Critical COLUMBIA GRAPHOPHONE CO Ltd
Priority to GB2407228A priority Critical patent/GB300704A/en
Publication of GB300704A publication Critical patent/GB300704A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor

Abstract

300,704. Columbia Graphophone Co., Ltd., and Mitchell, F. A. July 11, 1927. Divided on 302,190. Electromagnetic reproducing devices, supporting.-An electric pick-up for gramophones is carried by two or more links arranged so that the stylus is maintained in a plane substantially tangential to the sound groove as it traverses the disc record. The pick-up C, which may be of the type described in Specifications 302,190 and 302,216, is pivoted in a forked bracket J<5> carried by a pair of links, or by three parallel links T<2>, T<3>, T<4 >from a fixed support, whereby the angle of the pick-up is varied as it traverses the record. With three links, the central one T<4> may embrace the outer ones T<2>, T<3>, as shown. The links may form electric conductors from the pick-up terminals, which are then connected to the links by short flexible connections, and switching arrangements, or the mounting disclosed in Specification 298,685, may be employed therewith.
GB2407228A 1927-07-11 1927-07-11 Improvements in sound-reproducing instruments Expired GB300704A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2407228A GB300704A (en) 1927-07-11 1927-07-11 Improvements in sound-reproducing instruments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2407228A GB300704A (en) 1927-07-11 1927-07-11 Improvements in sound-reproducing instruments

Publications (1)

Publication Number Publication Date
GB300704A true GB300704A (en) 1928-11-12

Family

ID=10205920

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2407228A Expired GB300704A (en) 1927-07-11 1927-07-11 Improvements in sound-reproducing instruments

Country Status (1)

Country Link
GB (1) GB300704A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2516565A (en) * 1948-03-30 1950-07-25 Gen Electric Phonograph reproducing arm
US2522997A (en) * 1944-11-20 1950-09-19 Archie E Coppleman Phonograph pickup arm

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2522997A (en) * 1944-11-20 1950-09-19 Archie E Coppleman Phonograph pickup arm
US2516565A (en) * 1948-03-30 1950-07-25 Gen Electric Phonograph reproducing arm

Similar Documents

Publication Publication Date Title
GB300704A (en) Improvements in sound-reproducing instruments
GB282906A (en) Improvements in or relating to means for recording or reproducing sound
GB364610A (en) Improvements in or relating to electrical sound reproducing devices and the like
US1742257A (en) Combined tone arm and electrical pick-up
GB387974A (en) Improvements in electrical reproducers for disc records
US1745118A (en) Sound-reproducing device
GB320994A (en) Improvements relating to sound reproducing instruments
GB285454A (en) Sound recording and reproducing apparatus
GB303986A (en) Improvements in or relating to electro-magnetic gramophone reproducers
GB311461A (en) Diaphragm for sound reproduction
GB276708A (en) Improvements in sound recorders and reproducers
GB276971A (en) Improvements in and connected with the sound boxes of talking machines
GB301113A (en) Improvements in or relating to vibratory magnetic devices such, for instance, as areemployed in sound-reproducing or sound-recording apparatus
GB300490A (en) Improvements in apparatus for use in the electric reproduction of sound from disc orequivalent sound records
GB298275A (en) Improvements in or relating to apparatus for the electrical transmission of sound
GB331242A (en) Improved means for driving kinematographs and sound recording or reproducing means in synchronism
GB302022A (en) Improvements in and relating to sound reproducing apparatus
GB298685A (en) Improvements in sound-reproducing instruments
GB259850A (en) Improvements in reproducers or sound boxes for gramophones and the like
AU1113723A (en) Improvements in phonograph tonearm extensions and reproducer mountings
GB315505A (en) Improvements relating to gramophones and like sound reproducing instruments
GB340789A (en) Improvements in and relating to sound-reproducing devices
GB238372A (en) Improvements in gramophones
GB261143A (en) An improved disc talking machine and process for the reproduction of sounds recorded on record discs
GB337783A (en) Improvements in or connected with photographically recording sound