US1783044A - Reproducer - Google Patents

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Publication number
US1783044A
US1783044A US72541A US7254125A US1783044A US 1783044 A US1783044 A US 1783044A US 72541 A US72541 A US 72541A US 7254125 A US7254125 A US 7254125A US 1783044 A US1783044 A US 1783044A
Authority
US
United States
Prior art keywords
armature
magnet
shaft
stylus
combination
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 - Lifetime
Application number
US72541A
Other languages
English (en)
Inventor
Edward W Kellogg
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.)
General Electric Co
Original Assignee
General Electric Co
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
Priority to NL24797D priority Critical patent/NL24797C/xx
Priority to BE338052D priority patent/BE338052A/fr
Application filed by General Electric Co filed Critical General Electric Co
Priority to US72541A priority patent/US1783044A/en
Priority to GB4461/26A priority patent/GB260148A/en
Priority to FR32727D priority patent/FR32727E/fr
Priority to DEA49358D priority patent/DE515378C/de
Application granted granted Critical
Publication of US1783044A publication Critical patent/US1783044A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • 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
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response
    • H04R3/08—Circuits for transducers, loudspeakers or microphones for correcting frequency response of electromagnetic transducers

Definitions

  • YORK ASSIGNOR TO GENERAL ELECTRIC COMPANY, A CORPORATION OF NEW YORK REPRODUCER Application filed December
  • My invention relates to devices for producing sound. and has for its principal object the provision of an improved piek-up device that is rugged in construction and is capable of accurately reproducing sound from phonographic records or the like.
  • Fig. 1 is a perof a sound reproducing device wherein my invention has been embodied;
  • Fig. 2 shows the device with its cover plate removed:
  • Fig. 3 is a sectional view of the device;
  • Fig. 4 shows the device with its interior parts removed:
  • Figs. 5 and. 6 show various details of the device; and
  • Figs. 7 and 8 show a modification in certain of these details.
  • Y V Fig. 1 shows a disk record 1 which is adapt- 1, 1925- Serial No. 72 541.
  • the armature 11 is provided with a shaft 17 mountedin a bearing between the lower pole piece flanges.
  • This bearing comprises journals or sleeves 18 made of rubber or other resilient material by which friction is avoided and the armature is biased to its mid-position.
  • the needle 19 is clamped in the end of the armature 11 by means'of a screw 20 threaded into the end of the armature shaft-along its rotational axis; and that rubber pads 21 are provided at the end of the armature for damping its motion and producing a biasing force augmenting that exerted through the resilient journal 18.
  • the resilient journal 18 obviously may be replaced by a spring 24 which is held in contact with the armature shaft in any suitable manner.
  • a stylus holder comprising a shaft, a plurality of stylus holding surfaces, and means movable along the axis of said shaft for applying a clamping pressure at a point intermediate said surfaces.
  • armature adapted to vibrate between said pole tips, one end of said armature being adapted to receive a stylus, and holding means for the stylus located in the axis of rotation of the armature.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electromagnetism (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Electromagnets (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
US72541A 1924-07-29 1925-12-01 Reproducer Expired - Lifetime US1783044A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
NL24797D NL24797C (enrdf_load_stackoverflow) 1925-12-01
BE338052D BE338052A (enrdf_load_stackoverflow) 1925-10-28
US72541A US1783044A (en) 1925-12-01 1925-12-01 Reproducer
GB4461/26A GB260148A (en) 1925-12-01 1926-02-16 Improvements in and relating to electromagnetic apparatus for the interconversion ofelectrical and mechanical oscillations
FR32727D FR32727E (fr) 1924-07-29 1926-11-24 Perfectionnements à la fabrication des phonogrammes
DEA49358D DE515378C (de) 1925-12-01 1926-12-01 Elektromagnetische Schalldose

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US72541A US1783044A (en) 1925-12-01 1925-12-01 Reproducer

Publications (1)

Publication Number Publication Date
US1783044A true US1783044A (en) 1930-11-25

Family

ID=22108258

Family Applications (1)

Application Number Title Priority Date Filing Date
US72541A Expired - Lifetime US1783044A (en) 1924-07-29 1925-12-01 Reproducer

Country Status (4)

Country Link
US (1) US1783044A (enrdf_load_stackoverflow)
DE (1) DE515378C (enrdf_load_stackoverflow)
GB (1) GB260148A (enrdf_load_stackoverflow)
NL (1) NL24797C (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
DE515378C (de) 1930-12-31
NL24797C (enrdf_load_stackoverflow)
GB260148A (en) 1926-10-28

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