US1939513A - Coin checking device for coin-freed telephone installations - Google Patents

Coin checking device for coin-freed telephone installations Download PDF

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Publication number
US1939513A
US1939513A US579543A US57954331A US1939513A US 1939513 A US1939513 A US 1939513A US 579543 A US579543 A US 579543A US 57954331 A US57954331 A US 57954331A US 1939513 A US1939513 A US 1939513A
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United States
Prior art keywords
coin
impulse
spring
wheel
selector
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
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US579543A
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English (en)
Inventor
Moser Otto
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Individual
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Individual
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Publication date
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Publication of US1939513A publication Critical patent/US1939513A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F5/00—Coin-actuated mechanisms; Interlocks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M17/00—Prepayment of wireline communication systems, wireless communication systems or telephone systems
    • H04M17/02—Coin-freed or check-freed systems, e.g. mobile- or card-operated phones, public telephones or booths
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M17/00—Prepayment of wireline communication systems, wireless communication systems or telephone systems
    • H04M17/02—Coin-freed or check-freed systems, e.g. mobile- or card-operated phones, public telephones or booths
    • H04M17/026—Constructional features

Definitions

  • the signals produced by the inserted coins must be more restricted if the check on the amount of money inserted and its correspondence with the telephone communication desired is to be effected without the assistance of an operator by any kind of switching means.
  • the coin checking device at the automatic telephone station is provided with a current impulse transmitter, which, when a coin is introduced into the coin channel, is prepared and when the coin. is found to be correct is released by the latter, the transmitted impulse being employed for establishing the connection or for giving signals;
  • the arrangement according to the invention obtains a satisfactory production of signals as is ensured by the numeral switch which has been employed for years in automatic telephone operation.
  • Fig. 1 shows a coin receiving arrangement partly in section and its circuit arrangement for completely automatic operation.
  • Fig. 2 is a cross section through the apparatus shown in Fig. 1, and
  • Fig. 3 shows the circuit arrangement on the exchange whereby the amount of money introduced into the coin receiver can be checked by means of signals.
  • the spring casing g engages with the toothed wheel w, which is mounted on a common shaft with the
  • the ratchet wheel t and pawl u form a device for preventing the spring '0 being excessively tensioned.
  • the ratchet wheel 1 with the corresponding pawl holds the tensioned spring 1;.
  • a 10 centime piece thus gives one current impulse, a 20 centime piece two and a 50 centime piece five impulses.
  • the connecting relay D responds through the two selector arms a: and y, and the'controlling contact 2, and there is no obstruction to the connection being established. If, on the other hand, at the end of the series of identifying signal impulses the coin selector and the fee selector do not agree, the establishment of communication is prevented. The caller at the automatic machine receives the signal indicating that the number is engaged, and on hanging up the receiver the money inserted is returned.
  • Fig. 3 shows a circuit arrangement in which the making known the actual amount of money inserted a buzzer S is coordinated with the fee selector TW.
  • the trunk operator requires the caller to insert the fee for the desired i call.
  • the coin selector MW (Fig. 3) is operated. After the coins have been inserted this remains at the corresponding contact. Meanwhile the trunk operator has established communication and calls up the automatic machine. Through the c-conductor of the exchange selector a relay H is excited, which, through its contact hz, excites the tax selector TW. This begins to rotate slowly over theinterrupter'l and tests with its a-arm step by step the contacts of the coin selector MW at each step giving to the operator through its b-arm and the buzzer S a short tone. If the amount of money is, for example, 50centirnes,-the trunk operator 1.
  • the arm of the coin selector MW is, the relay P is excited and completes'a retaining current circuit which is not illustrated.
  • the relay Pat its contact p cuts off the passage of signals to the I trunk operator while the two selectors are turned back to the position of rest inknown manner.
  • 1.1An impulse sending device for coin-freed telephone installations comprising coin channels with slots for the insertion of coins of different values, a current impulse transmitter, a driving mechanism for said impulse transmitter, leversthe numberof impulses during rotation of the impulse wheel.
  • An impulse sending device for coin-freed telephone installations comprising coin channels .with'slots for the insertion of coins. of different values, a current impulse transmitter, a driving mechanism for said impulse transmitter, levers protruding into said channels behind the insertion slots and actuated by coins corresponding with the size of the slots to wind the driving mechanism, said impulse transmitter including an impulse wheel, means for locking said impulse wheel against rotation during the winding of the driving mechanism, a lever actuated by the inserted coin for releasing the locking means, said impulse wheel being turned a complete revolution at each insertion of a coin irrespective of the value of the coin, and a lever device for limiting the number of impulses during rotation of the impulse wheel, said lever device being returned to normal position by rotation of the impulse wheel during rotation of the latter.
  • An impulse sending device for coin-freed telephone installations comprising coin channels, a current impulse transmitter including an impulse wheel, a spring driving mechanism for the impulse transmitter, means actuated upon the insertion of a coin in one of said channels for tensioning the driving mechanism, means to lock the impulse wheel against rotation during the tensioning of the driving mechanism, a lever in the path of coins adapted to release the locking 7 means, said impulse wheel being turned through impulse wheel, a spring driving mechanism for the impulse transmitter, means actuated upon the insertion of a coin in one of said channels for tensioning the driving mechanism, means to lockthe impulse wheel against rotation during the tensioning of the driving mechanism, a lever in the path of coins adapted to release the looking means, said impulse wheel being turned through a complete revolution by the driving mechanism upon the insertion of each coin irrespective of the value thereof, and means for limiting the number of impulses of the impulse wheel during a revolution thereof, the first mentioned lever including a substantially triangular member pivotally secured thereto adapted to be engaged by an inserted coin.
  • An impulse sending device for coin-freed telephone installations comprising coin channels for the insertion of coins of different value, a current impulse transmitter including an impulse wheel, a driving mechanism for said impulse transmitter, said driving mechanism including a driving spring, and an escapement device associated therewith, levers in said channels and operated upon the insertion of a coin to tension said spring, means for locking the impulse wheel against rotation during the tensioning of said spring, said impulse wheel being turned through a complete revolution at the insertion of each coin irrespective of the value thereof, and means for limiting the number of impulses of the impulse wheel in accordance with the value of the coin inserted.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
US579543A 1931-01-24 1931-12-07 Coin checking device for coin-freed telephone installations Expired - Lifetime US1939513A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1939513X 1931-01-24

Publications (1)

Publication Number Publication Date
US1939513A true US1939513A (en) 1933-12-12

Family

ID=4566847

Family Applications (1)

Application Number Title Priority Date Filing Date
US579543A Expired - Lifetime US1939513A (en) 1931-01-24 1931-12-07 Coin checking device for coin-freed telephone installations

Country Status (2)

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US (1) US1939513A (de)
CH (1) CH158085A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2805746A (en) * 1957-09-10 Certificate of correction
US3371761A (en) * 1966-05-04 1968-03-05 Ryo Hirano Apparatus for discriminating hard coins

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE764495C (de) * 1937-10-01 1954-04-05 Lorenz C Ag Anordnung fuer Muenzfernsprecher im Netzgruppenverkehr

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2805746A (en) * 1957-09-10 Certificate of correction
US3371761A (en) * 1966-05-04 1968-03-05 Ryo Hirano Apparatus for discriminating hard coins

Also Published As

Publication number Publication date
CH158085A (de) 1932-10-31

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