GB279158A - Improvements in or relating to gramophone record cutting devices - Google Patents

Improvements in or relating to gramophone record cutting devices

Info

Publication number
GB279158A
GB279158A GB1804426A GB1804426A GB279158A GB 279158 A GB279158 A GB 279158A GB 1804426 A GB1804426 A GB 1804426A GB 1804426 A GB1804426 A GB 1804426A GB 279158 A GB279158 A GB 279158A
Authority
GB
United Kingdom
Prior art keywords
relating
cutting devices
gramophone record
armature
supported
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
GB1804426A
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 Individual filed Critical Individual
Priority to GB1804426A priority Critical patent/GB279158A/en
Publication of GB279158A publication Critical patent/GB279158A/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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/16—Mounting or connecting stylus to transducer with or without damping means

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Knives (AREA)

Abstract

279,158. Round, H. J. July 19, 1926. Magnetic instruments, -A block 10 of rubber, "artgum," &c. is attached by a spike 9 to the armature 7 or to the cutter associated therewith so as to be set in longitudinal vibration thereby, and is so proportioned as to eliminate resonance almost entirely. The outer end of the block may be supported from, or shaped for connection to, the magnet frame 1, and blocks may be provided at both ends and on both sides of the armature. The magnet frame is supported on knife edges 4 and counterbalanced by a weight 3 adjustable on a screwed stem.
GB1804426A 1926-07-19 1926-07-19 Improvements in or relating to gramophone record cutting devices Expired GB279158A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1804426A GB279158A (en) 1926-07-19 1926-07-19 Improvements in or relating to gramophone record cutting devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1804426A GB279158A (en) 1926-07-19 1926-07-19 Improvements in or relating to gramophone record cutting devices

Publications (1)

Publication Number Publication Date
GB279158A true GB279158A (en) 1927-10-19

Family

ID=10105672

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1804426A Expired GB279158A (en) 1926-07-19 1926-07-19 Improvements in or relating to gramophone record cutting devices

Country Status (1)

Country Link
GB (1) GB279158A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2480272A (en) * 1944-01-20 1949-08-30 Philco Corp Phonograph pickup device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2480272A (en) * 1944-01-20 1949-08-30 Philco Corp Phonograph pickup device

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