GB589918A - Improvements in telephone relaying and amplifying means for the aid of deaf or like persons - Google Patents

Improvements in telephone relaying and amplifying means for the aid of deaf or like persons

Info

Publication number
GB589918A
GB589918A GB2374844A GB2374844A GB589918A GB 589918 A GB589918 A GB 589918A GB 2374844 A GB2374844 A GB 2374844A GB 2374844 A GB2374844 A GB 2374844A GB 589918 A GB589918 A GB 589918A
Authority
GB
United Kingdom
Prior art keywords
telephone
deaf
aid
persons
improvements
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
GB2374844A
Original Assignee
Gerard Michael Horvitch
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 Gerard Michael Horvitch filed Critical Gerard Michael Horvitch
Priority to GB2374844A priority Critical patent/GB589918A/en
Publication of GB589918A publication Critical patent/GB589918A/en
Application status is Expired legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers; Analogous equipment at exchanges
    • H04M1/02Constructional features of telephone sets
    • H04M1/21Combinations with auxiliary equipment, e.g. with clock, with memoranda pads
    • H04M1/215Combinations with auxiliary equipment, e.g. with clock, with memoranda pads by non-intrusive coupling means, e.g. acoustic couplers

Abstract

589,918. Sub-station features. HORVITCH, G. M. Nov. 28, 1944, No. 23748. [Class 40 (iv)] A telephone relay, consisting of a magnet 1 and a coil 2 in a non-magnetic casing 9, is secured to the earpiece of a telephone by a rubber band 9a. The coil winding terminals 7, 8 are connected to a high-gain hearing aid or other amplifier (not shown), thus enabling an ordinary telephone to be used by a deaf person without dismantling it or interfering with its wiring. Figs. 2 and 3 (not shown) illustrate embodiments using inductive and microphonic or piezo-electric pick-ups for the same purpose.
GB2374844A 1944-11-28 1944-11-28 Improvements in telephone relaying and amplifying means for the aid of deaf or like persons Expired GB589918A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2374844A GB589918A (en) 1944-11-28 1944-11-28 Improvements in telephone relaying and amplifying means for the aid of deaf or like persons

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2374844A GB589918A (en) 1944-11-28 1944-11-28 Improvements in telephone relaying and amplifying means for the aid of deaf or like persons

Publications (1)

Publication Number Publication Date
GB589918A true GB589918A (en) 1947-07-03

Family

ID=10200663

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2374844A Expired GB589918A (en) 1944-11-28 1944-11-28 Improvements in telephone relaying and amplifying means for the aid of deaf or like persons

Country Status (1)

Country Link
GB (1) GB589918A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2554834A (en) * 1948-06-29 1951-05-29 Bell Telephone Labor Inc Coupling for telephone receivers and hearing aid sets
US2659772A (en) * 1948-09-13 1953-11-17 Janvier F O'hara Telephone adapter for hearing aids
EP1271899A1 (en) * 2001-06-28 2003-01-02 Nokia Corporation Cover with induction coil for a mobile telephone handset
EP2698971A1 (en) * 2012-08-15 2014-02-19 Colin Britton Audio amplification apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2554834A (en) * 1948-06-29 1951-05-29 Bell Telephone Labor Inc Coupling for telephone receivers and hearing aid sets
US2659772A (en) * 1948-09-13 1953-11-17 Janvier F O'hara Telephone adapter for hearing aids
EP1271899A1 (en) * 2001-06-28 2003-01-02 Nokia Corporation Cover with induction coil for a mobile telephone handset
EP2698971A1 (en) * 2012-08-15 2014-02-19 Colin Britton Audio amplification apparatus

Similar Documents

Publication Publication Date Title
GB382268A (en) Improvements in sound translating devices, particularly loud-speakers and telephone or like transmitters
GB512242A (en) Magneto strictive devices and electrical and electro-mechanical systems therefor
GB961369A (en) Improvements in electro-acoustic transducer which is incorporated in a capsule and comprises a transistor amplifier particularly for telephone handsets
GB746773A (en) Improvements in electroacoustic devices
GB858678A (en) Loudspeaking telephone using transistors
GB729895A (en) Improvements in and relating to direct current amplifiers employing junction transistors
GB574611A (en) Improvements in or relating to directional microphones
GB636903A (en) Electronic hearing aid
GB604159A (en) Improvements in or relating to acoustic transducers
GB706039A (en) Improvements in magnetic modulators or amplifiers
GB705100A (en) Improvements in telephone instruments and microphones of the moving coil type
GB865224A (en) Negative feedback amplifiers
GB528400A (en) Electro-acoustic devices
GB757111A (en) Improvements in or relating to electric transducers
GB677225A (en) Improvements in or relating to electro-acoustic transducers
GB943321A (en) Improvements in earphones
GB672467A (en) Improvements in and relating to sound reproducing devices
GB358878A (en) Apparatus for preventing snoring and the like
GB464418A (en) Improvements in or relating to sound reproducing apparatus
GB495171A (en) Improvements in deaf-aids for use in cinema auditoriums or the like
GB1065326A (en)
GB761169A (en) Improvements in or relating to hearing aids
JPS5312320A (en) Mfb circuit
GB847224A (en) Improvements in or relating to electrical decision element circuits
GB581189A (en) Improvements in or relating to telephone receivers