US2794861A - Combination telephone switch and dial - Google Patents

Combination telephone switch and dial Download PDF

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Publication number
US2794861A
US2794861A US420172A US42017254A US2794861A US 2794861 A US2794861 A US 2794861A US 420172 A US420172 A US 420172A US 42017254 A US42017254 A US 42017254A US 2794861 A US2794861 A US 2794861A
Authority
US
United States
Prior art keywords
contact
dial
selector
disc
spring
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
US420172A
Other languages
English (en)
Inventor
Heine Bruno
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.)
ALLG TELEFON FABRIK GmbH
Allgemeine Telefon-Fabrik G M B H
Original Assignee
ALLG TELEFON FABRIK GmbH
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 ALLG TELEFON FABRIK GmbH filed Critical ALLG TELEFON FABRIK GmbH
Application granted granted Critical
Publication of US2794861A publication Critical patent/US2794861A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/26—Devices for calling a subscriber
    • H04M1/52—Arrangements wherein a dial or the like is mechanically coupled to a line selector
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/002—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems

Definitions

  • the present invention relates to improvements in switching arrangements, being especially adapted for use with a conventional telephone instrument with a selector dial to enable the setting of additional switching.
  • Another object of the invention is to provide a switching arrangement of the type described in which a push button is provided at the central axis of the finger plate for making contact with the selected contact of the switching device.
  • a further object is to provide a switching arrangement for selectively operating a plurality of switching devices, which is simple and reliable in operation and inexpensive to produce.
  • a particularly simple arrangement is provided, according to the present invention, if the switch means initiating actual operation of the contacts or spring sets is arranged along the central axis of the selector dial.
  • FIG. 1 One such embodiment of the invention is illustrated diagrammatically in Figs. 1 and 2. All parts not necessary for understanding the invention are omitted.
  • Fig. 1 shows a selector dial for operating eleven additional calling contacts in side View;
  • Fig. 2 shows this selector dial in front elevation.
  • the proper selector dial which serves for giving digital pulses, consists of the finger-hole disc 1, the base plate 2, the pulse-producing elements 3 (not shown in detail) and the finger stop 4.
  • the central axis of the selector dial is provided with a Patent "ice central opening.
  • the spindle 5 with the pressure knob 6 and spring 7 are located in the central opening.
  • a contact spring 8 with precious metal contacts is mounted by means of insulating material not shown.
  • the insulating plate 9 disposed therebeneath carries a contact plate 10 with a precious metal coating as well as eleven contact elements 11 with precious metal coatings.
  • the contact spring 8 is rotated on operating and releasing the selector dial but, contact with the insulating plate 9, the contact plate 10 or the contact elements 11 does not occur. Any additional friction, which could prevent normal running of the selector dial, is hence prevented.
  • the contact spring 8 is set up over the desired contact plate by means of the finger-hole disc 1. Whilst one finger has turned the finger-hole disc 1 up to the finger stop 4, the thumb for example can then operate the pressure knob 6 against the force of the spring 7. The contact spring 8 hence bridges the desired contact plate 11 with the contact plate 10.
  • the contact by which a circuit (e. g. call circuit), is closed can be operated as often as desired. After releasing the finger-hole disc 1, this is returned to its normal position by springy or resilient means not shown.
  • a selective switch for an intercommunicating telephone system the combination with a conventional tele phone selector dial assembly having a rotary finger selector disc of means mounted in said disc for movement in a plane perpendicular to the plane of rotary motion of the disc, said means including a spindle and means for moving said spindle in said perpendicular plane, a contact carrying element secured on said spindle beneath said disc for movement with said spindle, a base plate beneath said contact carrying element, said element being normally spaced from said base plate, and contact means on said base plate, said contact carrying element being movable to establish electrical contact with selected contact means upon said base plate by movement of said spindle in said perpendicular plane in the direction of said base plate.
  • said contact carrying element being in the form of a spring blade extendig radially from said spindle, said blade carrying electrical contacts at its opposite ends, said base plate having a central contact part for engagement by the contact at one end of said blade and having also a circumferentially spaced series of contacts for selective engagement by the contact at the opposite end of said blade, said selective engagement being dependent upon rotation of said selector disc.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
US420172A 1954-01-19 1954-03-31 Combination telephone switch and dial Expired - Lifetime US2794861A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE739873X 1954-01-19

Publications (1)

Publication Number Publication Date
US2794861A true US2794861A (en) 1957-06-04

Family

ID=6643140

Family Applications (1)

Application Number Title Priority Date Filing Date
US420172A Expired - Lifetime US2794861A (en) 1954-01-19 1954-03-31 Combination telephone switch and dial

Country Status (5)

Country Link
US (1) US2794861A (de)
BE (1) BE526806A (de)
FR (1) FR1107002A (de)
GB (1) GB739873A (de)
NL (2) NL185694B (de)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3103401A (en) * 1960-08-24 1963-09-10 daniels etal
US3365550A (en) * 1964-06-30 1968-01-23 Bell Telephone Labor Inc Telephone set
US3647972A (en) * 1968-08-16 1972-03-07 Squaires Sanders Inc Low-cost portable terminal device for electronic data processing
US20070155369A1 (en) * 2006-01-05 2007-07-05 Jobs Steven P Replay Recommendations in a Text Entry Interface
US20080276168A1 (en) * 2006-10-13 2008-11-06 Philip Andrew Mansfield Method, device, and graphical user interface for dialing with a click wheel
US7860536B2 (en) 2006-01-05 2010-12-28 Apple Inc. Telephone interface for a portable communication device
US9092132B2 (en) 2011-01-24 2015-07-28 Apple Inc. Device, method, and graphical user interface with a dynamic gesture disambiguation threshold
US9128614B2 (en) 2010-11-05 2015-09-08 Apple Inc. Device, method, and graphical user interface for manipulating soft keyboards
US9141285B2 (en) 2010-11-05 2015-09-22 Apple Inc. Device, method, and graphical user interface for manipulating soft keyboards
US9367151B2 (en) 2005-12-30 2016-06-14 Apple Inc. Touch pad with symbols based on mode
US9436381B2 (en) 2011-01-24 2016-09-06 Apple Inc. Device, method, and graphical user interface for navigating and annotating an electronic document
US9442654B2 (en) 2010-01-06 2016-09-13 Apple Inc. Apparatus and method for conditionally enabling or disabling soft buttons
US10139870B2 (en) 2006-07-06 2018-11-27 Apple Inc. Capacitance sensing electrode with integrated I/O mechanism
US10353565B2 (en) 2002-02-25 2019-07-16 Apple Inc. Input apparatus and button arrangement for handheld device

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1290645A (en) * 1917-05-07 1919-01-07 Theodore H Nelson Switching mechanism for intercommunicating telephone systems.
GB297454A (en) * 1927-09-22 1929-09-12 Siemens Ag Improvements in or relating to telephone sets incorporating manually operable selectors
US1894828A (en) * 1931-04-27 1933-01-17 Associated Electric Lab Inc Substation telephone set
US1992389A (en) * 1933-03-29 1935-02-26 Moser Otto Selector arrangement for the selective call of telephone subscriber stations for the private and official exchange
US2073568A (en) * 1934-06-21 1937-03-09 Shipton Edward Manually operable selector
FR823685A (fr) * 1936-07-18 1938-01-25 Sélecteur téléphonique
US2370264A (en) * 1943-05-29 1945-02-27 Bell Telephone Labor Inc Telephone call transmitter
US2622154A (en) * 1945-01-17 1952-12-16 Deschamps Pierre Telephone substation set with multistation connecting switch

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1290645A (en) * 1917-05-07 1919-01-07 Theodore H Nelson Switching mechanism for intercommunicating telephone systems.
GB297454A (en) * 1927-09-22 1929-09-12 Siemens Ag Improvements in or relating to telephone sets incorporating manually operable selectors
US1894828A (en) * 1931-04-27 1933-01-17 Associated Electric Lab Inc Substation telephone set
US1992389A (en) * 1933-03-29 1935-02-26 Moser Otto Selector arrangement for the selective call of telephone subscriber stations for the private and official exchange
US2073568A (en) * 1934-06-21 1937-03-09 Shipton Edward Manually operable selector
FR823685A (fr) * 1936-07-18 1938-01-25 Sélecteur téléphonique
US2370264A (en) * 1943-05-29 1945-02-27 Bell Telephone Labor Inc Telephone call transmitter
US2622154A (en) * 1945-01-17 1952-12-16 Deschamps Pierre Telephone substation set with multistation connecting switch

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3103401A (en) * 1960-08-24 1963-09-10 daniels etal
US3365550A (en) * 1964-06-30 1968-01-23 Bell Telephone Labor Inc Telephone set
US3647972A (en) * 1968-08-16 1972-03-07 Squaires Sanders Inc Low-cost portable terminal device for electronic data processing
US10353565B2 (en) 2002-02-25 2019-07-16 Apple Inc. Input apparatus and button arrangement for handheld device
US9367151B2 (en) 2005-12-30 2016-06-14 Apple Inc. Touch pad with symbols based on mode
US7860536B2 (en) 2006-01-05 2010-12-28 Apple Inc. Telephone interface for a portable communication device
US8918736B2 (en) * 2006-01-05 2014-12-23 Apple Inc. Replay recommendations in a text entry interface
US20070155369A1 (en) * 2006-01-05 2007-07-05 Jobs Steven P Replay Recommendations in a Text Entry Interface
US10890953B2 (en) 2006-07-06 2021-01-12 Apple Inc. Capacitance sensing electrode with integrated I/O mechanism
US10359813B2 (en) 2006-07-06 2019-07-23 Apple Inc. Capacitance sensing electrode with integrated I/O mechanism
US10139870B2 (en) 2006-07-06 2018-11-27 Apple Inc. Capacitance sensing electrode with integrated I/O mechanism
US7667148B2 (en) * 2006-10-13 2010-02-23 Apple Inc. Method, device, and graphical user interface for dialing with a click wheel
US20080276168A1 (en) * 2006-10-13 2008-11-06 Philip Andrew Mansfield Method, device, and graphical user interface for dialing with a click wheel
US9442654B2 (en) 2010-01-06 2016-09-13 Apple Inc. Apparatus and method for conditionally enabling or disabling soft buttons
US9141285B2 (en) 2010-11-05 2015-09-22 Apple Inc. Device, method, and graphical user interface for manipulating soft keyboards
US9146673B2 (en) 2010-11-05 2015-09-29 Apple Inc. Device, method, and graphical user interface for manipulating soft keyboards
US9128614B2 (en) 2010-11-05 2015-09-08 Apple Inc. Device, method, and graphical user interface for manipulating soft keyboards
US10042549B2 (en) 2011-01-24 2018-08-07 Apple Inc. Device, method, and graphical user interface with a dynamic gesture disambiguation threshold
US9436381B2 (en) 2011-01-24 2016-09-06 Apple Inc. Device, method, and graphical user interface for navigating and annotating an electronic document
US10365819B2 (en) 2011-01-24 2019-07-30 Apple Inc. Device, method, and graphical user interface for displaying a character input user interface
US9092132B2 (en) 2011-01-24 2015-07-28 Apple Inc. Device, method, and graphical user interface with a dynamic gesture disambiguation threshold

Also Published As

Publication number Publication date
NL91183C (de)
BE526806A (de)
FR1107002A (fr) 1955-12-27
GB739873A (en) 1955-11-02
NL185694B (nl)

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