GB313259A - Apparatus to enable deaf people to hear - Google Patents

Apparatus to enable deaf people to hear

Info

Publication number
GB313259A
GB313259A GB1124928A GB1124928A GB313259A GB 313259 A GB313259 A GB 313259A GB 1124928 A GB1124928 A GB 1124928A GB 1124928 A GB1124928 A GB 1124928A GB 313259 A GB313259 A GB 313259A
Authority
GB
United Kingdom
Prior art keywords
tube
hear
instruments
deaf
deaf people
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
GB1124928A
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 GB1124928A priority Critical patent/GB313259A/en
Publication of GB313259A publication Critical patent/GB313259A/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
    • H04R15/00—Magnetostrictive transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/60—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles
    • H04R25/604—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles of acoustic or vibrational transducers
    • H04R25/606—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles of acoustic or vibrational transducers acting directly on the eardrum, the ossicles or the skull, e.g. mastoid, tooth, maxillary or mandibular bone, or mechanically stimulating the cochlea, e.g. at the oval window

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Magnetic Treatment Devices (AREA)

Abstract

313,259. Harrison, E. P. April 16, 1928. Telephonic instruments for deaf persons; magnetic instruments.-A receiving-apparatus comprises an element of magneto-strictive alloy 1 set into longitudinal vibration at acoustic frequency by means of a varying or alternating current passed through the coil of wire 2 wound on it. One end of the element may be secured by hard wax 5 to a tube 4. The other end is placed in contact with some part of the bony structure of the deaf person or is clenched in his teeth either directly or by means of a rigidly attached mouth piece 3. The tube 4 can be a hollow permanent bar magnet or alternatively can consist of non-magnetic material. The Provisional Specification also refers to an electromagnetically operated reed or diaphragm. Specification 17138/08 is referred to.
GB1124928A 1928-04-16 1928-04-16 Apparatus to enable deaf people to hear Expired GB313259A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1124928A GB313259A (en) 1928-04-16 1928-04-16 Apparatus to enable deaf people to hear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1124928A GB313259A (en) 1928-04-16 1928-04-16 Apparatus to enable deaf people to hear

Publications (1)

Publication Number Publication Date
GB313259A true GB313259A (en) 1929-06-13

Family

ID=9982746

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1124928A Expired GB313259A (en) 1928-04-16 1928-04-16 Apparatus to enable deaf people to hear

Country Status (1)

Country Link
GB (1) GB313259A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2174863A (en) * 1985-05-10 1986-11-12 Raytheon Co Permanent magnet biased magnetostrictive transducer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2174863A (en) * 1985-05-10 1986-11-12 Raytheon Co Permanent magnet biased magnetostrictive transducer
GB2174863B (en) * 1985-05-10 1989-06-28 Raytheon Co Permanent magnet biased magnetostrictive transducer

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