US2368104A - Impulse sender for use in telephone or like systems - Google Patents

Impulse sender for use in telephone or like systems Download PDF

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Publication number
US2368104A
US2368104A US343399A US34339940A US2368104A US 2368104 A US2368104 A US 2368104A US 343399 A US343399 A US 343399A US 34339940 A US34339940 A US 34339940A US 2368104 A US2368104 A US 2368104A
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US
United States
Prior art keywords
dial
impulses
plate
finger
telephone
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
US343399A
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English (en)
Inventor
Beltrami Vittorio
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.)
Automatic Electric Laboratories Inc
Original Assignee
Automatic 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 Automatic Electric Laboratories Inc filed Critical Automatic Electric Laboratories Inc
Application granted granted Critical
Publication of US2368104A publication Critical patent/US2368104A/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
    • H04M1/27—Devices whereby a plurality of signals may be stored simultaneously
    • H04M1/272—Devices whereby a plurality of signals may be stored simultaneously with provision for storing only one subscriber number at a time, e.g. by keyboard or dial

Definitions

  • an impulse sender of the dial type for use in telephone or like system successive operations of the finger hole plate produce storage of corresponding numbers of impulses, the transmission of the stored impulses in a single train-being initiated by a further operation on the part of the user.
  • Fig. 1 is a vertical section along the main axis as indicated by the arrows II in Fig. 5;
  • Fig. 2 is an elevation looking in the direction indicated by the arrows 11-11 in -Fig. 1;
  • Fig. 3 is a corresponding elevation looking in the opposite direction from the same section line as indicated by the arrows III-III in Fig. 1;
  • Fig. 4 is a somewhat similar view but with a difierent section line as indicated by the arrows IV'IV in Fig. 1,while Fig. 5 is a rear elevational view.
  • This designation plate is kept in position by a spring ring l0 which engages with a groove in the up-turned edge of the member I, while a corrugated spring washer H engages the plate on the other side to maintain it in position.
  • the finger plate 1 is secured to the boss l2 which is fixed to the shaft 6 and carries a pawl 58 which is arranged to engage with the ratchet wheel l3.
  • the ratchet wheel [3 is free to rotate on the shaft 6 and is secured to the gear wheel I4 which meshes with the pinion l5 secured to the shaft Hi.
  • This shaft is supported in the brackets I1 and I8 and also carries the worm wheel I9 which engages with the worm 20 driving the governor 2
  • the pawl carried by the arm 24 mounted on the shaft 6 engages with a ratchet wheel 26 which is secured y to a boss 21 rigidly fixed to the shaft 28 which is journalled in bosses 29 and 30 on the rear plate 2.
  • a ratchet wheel 26 When the ratchet wheel 26 is rotated by the pawl 25 on the forward movement of the finger plate 1, tension is stored in the spring 3
  • the pawl 25 carries a pin 55 adapted to engage with a post 56 supported on the front plate I and provided with a cam surface. The engagement of the pin 55 with this cam surface withdraws the pawl 25 from the path of its associated ratchet wheel 26 and permits the rotation of this wheel when impulses are to be transmitted by the operation of the rear mechanism.
  • One application of the invention is to a party line or selective signalling system in which the number of stations is greater than 10 so that selection cannot be made by the dialling of a single digit.
  • a member having a normal position manually operable means for variably moving sai member in a given direction to register any one of certain digits, said means operated a plurality of times in succession to register a plurality of digits, means for moving said member in the opposite direction after each movement of it in said given direction, thereby to restore said member to normal between successive movements of it in said given direction, a second member adapted to be moved only in a predetermined direction while said digits are being registered, means mechanically linking said two members during said registration of said digits to cause said first member to move said second member in said predetermined direction to store impulses corresponding to said digits, means for thenmoving said-second member in the opposite direction, and means operated by said second member during'its movement in said opposite direction for transmitting said stored impulses.
  • a separate governor for each of said members to control the speed at which said member restores to its normal position.
  • an impulse sender two members each having a normal position, a spring for each member urging that member toward its normal position, means for manually rotating one of said members repeatedly away from its normal position against the force of its spring, said spring effective to restore said one member to .normal between successive rotations of it away from its normal position, a pawl and ratchet coupling between said members causing said one member to rotate the other of said members away from its normal position against the force of its spring whenever said one member is rotated in a particular direction, a detent normally effective to sition alter each operation.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
US343399A 1939-07-08 1940-07-01 Impulse sender for use in telephone or like systems Expired - Lifetime US2368104A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB19975/39A GB531693A (en) 1939-07-08 1939-07-08 Improvements in impulse senders for use in telephone or like systems

Publications (1)

Publication Number Publication Date
US2368104A true US2368104A (en) 1945-01-30

Family

ID=10138229

Family Applications (1)

Application Number Title Priority Date Filing Date
US343399A Expired - Lifetime US2368104A (en) 1939-07-08 1940-07-01 Impulse sender for use in telephone or like systems

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US (1) US2368104A (en))
BE (1) BE464784A (en))
GB (1) GB531693A (en))

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2759429A (en) * 1951-06-11 1956-08-21 Phillips Petroleum Co Valve control for gas lift
US3046355A (en) * 1957-12-30 1962-07-24 Bell Telephone Labor Inc Impulse transmitting mechanism
US3104286A (en) * 1960-07-15 1963-09-17 Mc Graw Edison Co Mechanical telephone dialing instrument

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2759429A (en) * 1951-06-11 1956-08-21 Phillips Petroleum Co Valve control for gas lift
US3046355A (en) * 1957-12-30 1962-07-24 Bell Telephone Labor Inc Impulse transmitting mechanism
US3104286A (en) * 1960-07-15 1963-09-17 Mc Graw Edison Co Mechanical telephone dialing instrument

Also Published As

Publication number Publication date
GB531693A (en) 1941-01-09
BE464784A (en))

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