GB308698A - Improvements in talking machines - Google Patents

Improvements in talking machines

Info

Publication number
GB308698A
GB308698A GB2512027A GB2512027A GB308698A GB 308698 A GB308698 A GB 308698A GB 2512027 A GB2512027 A GB 2512027A GB 2512027 A GB2512027 A GB 2512027A GB 308698 A GB308698 A GB 308698A
Authority
GB
United Kingdom
Prior art keywords
strips
armature
sheets
plate
juxtaposed
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
GB2512027A
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.)
WILLIAM SPENCER PURSER
Original Assignee
WILLIAM SPENCER PURSER
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 WILLIAM SPENCER PURSER filed Critical WILLIAM SPENCER PURSER
Priority to GB2512027A priority Critical patent/GB308698A/en
Priority to GB245029A priority patent/GB308747A/en
Publication of GB308698A publication Critical patent/GB308698A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R11/00—Transducers of moving-armature or moving-core type
    • H04R11/08—Gramophone pick-ups using a stylus; Recorders using a stylus

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Moving Of Heads (AREA)
  • Toys (AREA)

Abstract

308,698. Purser, W. S., and Holman, H. E. Sept. 23, 1927. Phonographic recorders and reproducers; magnetic instruments. - Vibration responsive apparatus, more particularly a device for recording or reproducing sound, is provided with damping means consisting of a number of juxtaposed separate strips or sheets cf rubber or other resilient vibration absorbing medium arranged on each side of the vibration member in the direction of its vibrations. The strips or sheets may be of the same or different materials. In the construction shown, the armature b of an electrical recording apparatus is pivoted at e and carries at its upper end a plate a arranged in a casing c containing a series of juxtaposed rubber strips d arranged upon each side of the plate. Artificial resonance may be added as described in Specification 308,747 by interposing one or more large inertia bodies k amongst the strips d and by forming the stylus arm f carried by the armature b with a reduced part g, movement of the armature being communicated to the stylus arm through fingerpieces h and resonance inserts i.
GB2512027A 1927-09-23 1927-09-23 Improvements in talking machines Expired GB308698A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB2512027A GB308698A (en) 1927-09-23 1927-09-23 Improvements in talking machines
GB245029A GB308747A (en) 1927-09-23 1927-09-23 Improvements in talking machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2512027A GB308698A (en) 1927-09-23 1927-09-23 Improvements in talking machines

Publications (1)

Publication Number Publication Date
GB308698A true GB308698A (en) 1929-03-25

Family

ID=10222531

Family Applications (2)

Application Number Title Priority Date Filing Date
GB2512027A Expired GB308698A (en) 1927-09-23 1927-09-23 Improvements in talking machines
GB245029A Expired GB308747A (en) 1927-09-23 1927-09-23 Improvements in talking machines

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB245029A Expired GB308747A (en) 1927-09-23 1927-09-23 Improvements in talking machines

Country Status (1)

Country Link
GB (2) GB308698A (en)

Also Published As

Publication number Publication date
GB308747A (en) 1929-03-25

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