US2649497A - Control of dirving motors of teleprinters - Google Patents

Control of dirving motors of teleprinters Download PDF

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Publication number
US2649497A
US2649497A US136323A US13632349A US2649497A US 2649497 A US2649497 A US 2649497A US 136323 A US136323 A US 136323A US 13632349 A US13632349 A US 13632349A US 2649497 A US2649497 A US 2649497A
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US
United States
Prior art keywords
relay
motor
contacts
receiving
line
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
US136323A
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English (en)
Inventor
Munck Leslie Stampe
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.)
Creed and Co Ltd
Original Assignee
Creed and Co Ltd
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 Creed and Co Ltd filed Critical Creed and Co Ltd
Application granted granted Critical
Publication of US2649497A publication Critical patent/US2649497A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/12—Arrangements for remote connection or disconnection of substations or of equipment thereof
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/50—Reducing energy consumption in communication networks in wire-line communication networks, e.g. low power modes or reduced link rate

Definitions

  • the present invention relates to the control of driving motors of teleprinters having a receiving relay, the armature of which is presented at timed intervals to the electro-magnet cores by mechanical motion derived from the machine.
  • this start element consists in efiect of a break in transmission lasting one signal element, the normal condition of rest between transmissions being marked by the existence of current on the line.
  • the stopping of the motor may be controlled from the distant end by, for example, the transmission of a characteristic signal combination, the actual disconnecting of the motor being performed by a function member moved only in response to the receipt of the characteristic motor stop signal combination over the line.
  • receiving selector magnet i is connected directly across lines 2 and 3 through contacts 4.
  • the receiving magnet has an armature la associated therewith of the mechanically assisted type already described.
  • Printer motor 5 is supplied from a suitable source at terminals 6 through contacts 1. Contacts t and l are mechanically coupled as shown.
  • Cam 5a is driven by the motor 5 via the shaft 5b and the battery urges armature la in proximity with the magnet I so that Weak signalling currents received over the line may draw the armature to operating position.
  • contacts 4 and l Mechanically coupled to contacts 4 and l are a third pair of contacts ll. These are arranged to close when the other two open and in closing they connect a relay coil I2 across battery 8 and resistor 9. As there is no potential difference across this part of the circuit when the line current is flowing, relay [2 remains de-energised.
  • the interruption of line current also (causes receiving relay l to release its armature.
  • relay I4 On the restoration of line current, relay I4 is energised and closes contacts 45 thus re-connecting motor 5 to the supply ate.
  • contacts 4 complete the circuit for the receiving relay; contacts I provide anothe er closure for the motor circuit and contacts ll break the retaining circuit for relay 12-. Contacts Itiarethereby closed to; reconnect the battery and resistor circuit to line i and contacts iiiare openedtode-energise' the relay coil M. In consequence, contacts [5 open and the circuit is restored'to the condition shown inthe drawing. Sincethe operating circuit for the receiving-relay was not closed until after the arma ture had been moved mechanically for the last time, the armature is still in the de-energised position at the end of the revolution: Conse quently the clutch mechanism is operated again and the mechanism goes through a second cycle of events.
  • a circuit for remotely controlling a teleprinter motor over a signal current path comprising a receiving magnet having an armature associated therewith, means coupled to said inotor for mechanically assisting said armature, a function member actuable under controi of said armature upon receipt by said magnet of a characteristic code signal combination over said path, said signal combination preceding a change in current condition on said path, a plurality of contacts coupled to said function member, a first of said contacts adaptedto normally connect said motor to a source of power, a second of said contacts adapted to normally connect said receiving magnet to said receiving path, counter-potential means in shunt with said second contact, afirst relay serially connected between a third of said contacts andsaid countor-potential means, said first relay adapted to operate upon removal of current from saidpath after said function member has been actuated and said second contact has been opened and said third contact is closed, a second relay serially connected between said line and an additional contact associated with said first relay, a further contact associated with said second relay

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Toys (AREA)
  • Control Of Direct Current Motors (AREA)
  • Stopping Of Electric Motors (AREA)
US136323A 1949-01-04 1949-12-31 Control of dirving motors of teleprinters Expired - Lifetime US2649497A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB164/49A GB656821A (en) 1949-01-04 1949-01-04 Improvements in or relating to control of driving motors of teleprinters

Publications (1)

Publication Number Publication Date
US2649497A true US2649497A (en) 1953-08-18

Family

ID=9699530

Family Applications (1)

Application Number Title Priority Date Filing Date
US136323A Expired - Lifetime US2649497A (en) 1949-01-04 1949-12-31 Control of dirving motors of teleprinters

Country Status (3)

Country Link
US (1) US2649497A (fr)
FR (1) FR1007536A (fr)
GB (1) GB656821A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3317660A (en) * 1963-08-07 1967-05-02 Teletype Corp Printing telegraph motor start-stop mechanism
US3462552A (en) * 1966-02-08 1969-08-19 Siemens Ag Control apparatus for telegraph exchange repeater

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US189891A (en) * 1877-04-24 Improvement in sheetvmetal cans
US1921990A (en) * 1931-08-01 1933-08-08 Western Union Telegraph Co Motor control circuit for telegraph printers
US2209192A (en) * 1939-08-12 1940-07-23 Michael E Demsey Medication appliance
US2273236A (en) * 1940-10-17 1942-02-17 Teletype Corp Printing telegraph system
US2495131A (en) * 1947-07-31 1950-01-17 Marconi Wireless Telegraph Co Motor stop-start arrangement for telegraph receivers

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US189891A (en) * 1877-04-24 Improvement in sheetvmetal cans
US1921990A (en) * 1931-08-01 1933-08-08 Western Union Telegraph Co Motor control circuit for telegraph printers
US2209192A (en) * 1939-08-12 1940-07-23 Michael E Demsey Medication appliance
US2273236A (en) * 1940-10-17 1942-02-17 Teletype Corp Printing telegraph system
US2495131A (en) * 1947-07-31 1950-01-17 Marconi Wireless Telegraph Co Motor stop-start arrangement for telegraph receivers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3317660A (en) * 1963-08-07 1967-05-02 Teletype Corp Printing telegraph motor start-stop mechanism
US3462552A (en) * 1966-02-08 1969-08-19 Siemens Ag Control apparatus for telegraph exchange repeater

Also Published As

Publication number Publication date
GB656821A (en) 1951-09-05
FR1007536A (fr) 1952-05-07

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