FR825817A - Perfectionnements aux émetteurs d'impulsions tels que ceux utilisés dans les systèmes téléphoniques - Google Patents

Perfectionnements aux émetteurs d'impulsions tels que ceux utilisés dans les systèmes téléphoniques

Info

Publication number
FR825817A
FR825817A FR825817DA FR825817A FR 825817 A FR825817 A FR 825817A FR 825817D A FR825817D A FR 825817DA FR 825817 A FR825817 A FR 825817A
Authority
FR
France
Prior art keywords
those used
telephone systems
pulse transmitters
transmitters
pulse
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
Other languages
English (en)
French (fr)
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.)
Associated Electric Laboratories Inc
Original Assignee
Associated Electric Laboratories Inc
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 Associated Electric Laboratories Inc filed Critical Associated Electric Laboratories Inc
Application granted granted Critical
Publication of FR825817A publication Critical patent/FR825817A/fr
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D41/00—Freewheels or freewheel clutches
    • F16D41/12—Freewheels or freewheel clutches with hinged pawl co-operating with teeth, cogs, or the like
    • 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
    • H04M1/30—Devices which can set up and transmit only one digit at a time
    • H04M1/31—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/15—Intermittent grip type mechanical movement
    • Y10T74/1558—Grip units and features
    • Y10T74/1565—Gripper releasing devices
    • Y10T74/1566—Power pawl lifter
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/15—Intermittent grip type mechanical movement
    • Y10T74/1558—Grip units and features
    • Y10T74/1565—Gripper releasing devices
    • Y10T74/1566—Power pawl lifter
    • Y10T74/1568—Automatic
    • Y10T74/1569—Idle stroke
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20576—Elements
    • Y10T74/20732—Handles
    • Y10T74/20834—Hand wheels
    • Y10T74/2084—Knob or dial
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/21—Elements
    • Y10T74/2133—Pawls and ratchets
    • Y10T74/2135—Noiseless

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)
FR825817D 1936-09-05 1937-08-20 Perfectionnements aux émetteurs d'impulsions tels que ceux utilisés dans les systèmes téléphoniques Expired FR825817A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US99547A US2133469A (en) 1936-09-05 1936-09-05 Calling device

Publications (1)

Publication Number Publication Date
FR825817A true FR825817A (fr) 1938-03-15

Family

ID=22275530

Family Applications (1)

Application Number Title Priority Date Filing Date
FR825817D Expired FR825817A (fr) 1936-09-05 1937-08-20 Perfectionnements aux émetteurs d'impulsions tels que ceux utilisés dans les systèmes téléphoniques

Country Status (3)

Country Link
US (1) US2133469A (en:Method)
BE (1) BE422956A (en:Method)
FR (1) FR825817A (en:Method)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2522004A (en) * 1947-12-24 1950-09-12 Telephonics Corp Electric impulse transmitter pawl silencer
US2781666A (en) * 1951-12-26 1957-02-19 Itt Dial type of impulse sender
US2757250A (en) * 1953-09-11 1956-07-31 Gen Motors Corp Direction signal mechanisms
US2800542A (en) * 1955-08-12 1957-07-23 Gen Motors Corp Direction signal
CH410540A (de) * 1963-09-02 1966-03-31 Micro Electric Ag Nockenscheibeneinrichtung
US3422699A (en) * 1967-04-11 1969-01-21 Friden Inc Antibackup device
US3658655A (en) * 1969-09-19 1972-04-25 Peter N Heere Direct reading relux rating controller for a distillation apparatus
AT353107B (de) * 1978-04-19 1979-10-25 Poettinger Ohg Alois Antriebsvorrichtung fuer den roll- oder kratz- boden eines ladewagens

Also Published As

Publication number Publication date
BE422956A (en:Method)
US2133469A (en) 1938-10-18

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