CH231797A - Telecommunication apparatus. - Google Patents

Telecommunication apparatus.

Info

Publication number
CH231797A
CH231797A CH231797DA CH231797A CH 231797 A CH231797 A CH 231797A CH 231797D A CH231797D A CH 231797DA CH 231797 A CH231797 A CH 231797A
Authority
CH
Switzerland
Prior art keywords
telecommunication apparatus
telecommunication
Prior art date
Application number
Other languages
German (de)
Inventor
Ag Standard Telephon Und Radio
Original Assignee
Standard Telephon & Radio Ag
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 Standard Telephon & Radio Ag filed Critical Standard Telephon & Radio Ag
Publication of CH231797A publication Critical patent/CH231797A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
    • H01H36/0006—Permanent magnet actuating reed switches
    • H01H36/0046—Limit switches, also fail-safe operation or anti-tamper considerations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/04—Supports for telephone transmitters or receivers
    • H04M1/06—Hooks; Cradles
    • H04M1/10—Hooks; Cradles associated with switches operated by magnetic effect due to proximity of receiver or hand-set

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
  • Telephone Set Structure (AREA)
CH231797D 1941-01-24 1942-03-09 Telecommunication apparatus. CH231797A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US375717A US2322851A (en) 1941-01-24 1941-01-24 Magnetic switch hook

Publications (1)

Publication Number Publication Date
CH231797A true CH231797A (en) 1944-04-15

Family

ID=23482018

Family Applications (1)

Application Number Title Priority Date Filing Date
CH231797D CH231797A (en) 1941-01-24 1942-03-09 Telecommunication apparatus.

Country Status (6)

Country Link
US (1) US2322851A (en)
BE (1) BE443017A (en)
CH (1) CH231797A (en)
FR (1) FR887174A (en)
GB (1) GB555527A (en)
NL (1) NL57098C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0027188A1 (en) * 1979-10-11 1981-04-22 KRONE GmbH Hook switch for telephone apparatuses

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2431319A (en) * 1943-02-09 1947-11-25 Walter B Ellwood Magnetic firing device
US2523297A (en) * 1945-08-02 1950-09-26 Charles E Hastings Frequency meter
US2623128A (en) * 1946-03-15 1952-12-23 Automatic Telephone & Elect Telephone instrument with magnetic handset latch
US2546647A (en) * 1946-08-01 1951-03-27 Automatic Elect Lab Magnet operated sealed switchboard
US2672523A (en) * 1949-09-16 1954-03-16 Bell Telephone Labor Inc Telephone subscriber
US2673252A (en) * 1949-09-28 1954-03-23 Automatic Elect Lab Magnetic cradle switch
US2636933A (en) * 1949-11-21 1953-04-28 Allis Chalmers Mfg Co Control system responsive to presence of magnetic materials
US2848572A (en) * 1957-03-06 1958-08-19 Bendix Aviat Corp Electrical disconnect plug
US2912540A (en) * 1958-02-13 1959-11-10 American District Telegraph Co Defeat resistant burglar alarm contact
US3005885A (en) * 1958-09-12 1961-10-24 Foxboro Co Safety switch arrangements
US3009033A (en) * 1959-04-20 1961-11-14 Gen Electric Limit switches
US3157747A (en) * 1960-05-10 1964-11-17 Bell Telephone Labor Inc Automatic selecting switch
DE1149398B (en) * 1962-04-02 1963-05-30 Siemens Ag Arrangement for a telephone handset with local battery, preferably for a test telephone
DE1160019B (en) * 1962-05-05 1963-12-27 Telefonbau & Normalzeit Gmbh Telephone subscriber station with protective tube fork switch contacts
US3147819A (en) * 1963-06-13 1964-09-08 Timothy B Keleher Seat belt control for ignition system
US3305805A (en) * 1963-11-14 1967-02-21 Tann David Proximity switch
GB1038229A (en) * 1963-11-29 1966-08-10 Ass Elect Ind Improvements relating to subscriber's telephone instruments
FR2401508A1 (en) * 1977-06-27 1979-03-23 Commissariat Energie Atomique ELECTRON INJECTOR FOR HYPERFREQUENCY GENERATOR
US4251694A (en) * 1979-08-16 1981-02-17 Western Electric Company, Inc. Tone-ringing circuits and methods for telephone sets
EP0128500A3 (en) * 1983-06-14 1986-08-20 Telelogic, Inc. Telephone with cradle having no moving parts
US4581490A (en) * 1983-12-22 1986-04-08 Richard Genender Wall telephone assembly
US4675903A (en) * 1984-06-29 1987-06-23 Wang Laboratories, Inc. Telephone handset assembly
US6289100B1 (en) * 1999-03-09 2001-09-11 Hubbell Incorporated Communications station having hall effect device for controlling hookswitch operations
TWI577165B (en) * 2015-11-10 2017-04-01 和碩聯合科技股份有限公司 Telephone device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0027188A1 (en) * 1979-10-11 1981-04-22 KRONE GmbH Hook switch for telephone apparatuses

Also Published As

Publication number Publication date
BE443017A (en)
US2322851A (en) 1943-06-29
NL57098C (en)
FR887174A (en) 1943-11-05
GB555527A (en) 1943-08-26

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