US2176312A - System for remotely switching in and out the driving motor of telegraph apparatus - Google Patents

System for remotely switching in and out the driving motor of telegraph apparatus Download PDF

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Publication number
US2176312A
US2176312A US58231A US5823136A US2176312A US 2176312 A US2176312 A US 2176312A US 58231 A US58231 A US 58231A US 5823136 A US5823136 A US 5823136A US 2176312 A US2176312 A US 2176312A
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United States
Prior art keywords
motor
relay
contact
driving motor
slow
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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
US58231A
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English (en)
Inventor
Rassow Horst
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.)
Siemens and Halske AG
Siemens Corp
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Siemens Corp
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Publication date
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    • 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

  • This invention relates to a system for remotely starting and stopping the driving motor of telegraph apparatus, and more particularly for the wireless telegraph apparatus in which the signal characters are analyzed in lines.
  • the systems hitherto known for the remote control of motors of wireless telegraph apparatus have the great disadvantage that they are influenced adversely by atmospheric disturbances.
  • the present invention relates to a system for remotely controlling the motors of telegraph receivers operating on the same wave, whereby undesirable influences due to atmospheric disturbances are avoided.
  • control means are arranged having control elements operating with retardation which cause a starting of the motor in response to the reception of a longer current impulse at least longer than the longest marking character impulse and a stop in response to the reception of an impulse of at least twice the duration of that for the starting.
  • a current impulse is transmitted from the sending station for stopping the driving motor of the telegraph apparatus which has a duration about ten times that of the starting impulse. In this manner a confusion of the function of a starting and a stopping signal is prevented.
  • a hand-operated switch arranged according to the invention in parallel relation to the remote starting system may cause starting of thedriving motor independently of the remote control in such a manner that when this hand-operated switch is brought back into its initial position a remote control condition which may have occurred in the meantime is maintained.
  • At rest relay A is energized to hold contact a open by a current of the battery through the relay A and through the armature contact L of the receiving magnet M which simultaneously opens the contact L in vibrating manner and efiects the recording of the signal characters in lines, thus providing means for opening the contact a as shown in the drawing. If a current impulse is received which is longer than the longest marking signal of character transmission the magnet system M is operated to open contact L for a sufiicient period and the release of the armature of the retarded or slow-to-release relay A is permitted.
  • the retardation is effected in part by a condenser C having an attenuation resistance R1 and in part by a resistance R2 through which flows a weak residual current.
  • the contact a closes and energizes the relay B1 over a circuit through contact a, contact e, winding BI, contact th, contact 0, and ground.
  • the relay B is operated and, on the one hand, energizes the holding coil BII through the contact In and, on the other hand, connects the motor Mo to the supply circuit through the contact b2, thus causing starting of the driving motor.
  • Slow to operate relay Th has received current but has not operated.
  • the operation may be effected also by hand by a reversible switch K2, or K3. If the switch K3 is brought into the lower position and retained there the contact is closed at d so that the motor is connected to the supply circuit independently of the automatic remote control system. This is important if, for instance, the battery B fails.
  • the hand switch K3 is arranged as reversible switch in such a manner that while it is retained depressed a remotely controlled starting condition may be set up through the control relay B and will be maintained after the reversible switch is brought back to its central position correspond ing to the position shown.
  • operation of the motor may be accomplished by the momentary operation of key K2 due to the fact that in the lower position the circuit for B1 will have been closed by K2 through the contact I, so that the B-relay could remain energized through the holding circuit. Thereafter, stopping may be effected remotely.
  • the circuit for the B-relay may be manually opened at c, thereby'causing the motor to be stopped by local control.
  • the present system is rendered independent of atmospheric disturbances by correspondingly designing the A-relay for a predetermined retardation.
  • the release of the relay A may be retarded to such an extent that the ratio of atmospheric interference time to the motor control interval of the recording magnet contact L may be very great. Since even in very unfavorable cases short intervals always occur between the atmospheric disturbances the condenser C will always be again rapidly discharged through the resistance R1 even in the case of a very short period during which the contact L is closed.
  • An essential feature is to avoid atmospheric disturbances by the contact L that may affect the wireless receiver placed immediately adjacent to the recorder. A low voltage of 4 volt as is applied to commercial wireless receivers for tube heating has been, therefore, chosen.
  • the condenser C has been, therefore, amply dimensioned; however, it is of very small dimensions in the case of electrolytic condensers.
  • a further resistance R2 is parallel connected to the contact L which resistance is so high that the residual current does not hold the armature of A, but causes the armature only to drop with retardation.
  • a system as set forth in claim 1 characterized in that the operation of the said slow operated contacts is retarded to such an extent that the ratio of atmospheric interference time to the interval from the opening instant in the closing instant of said signal contacts for motor control is substantial.
  • a system for remotely controlling the driving motor of telegraph apparatus particularly for the wireless operation of telegraph apparatus in which the transmitted characters are analyzed in lines comprising a relay responsive to remotely generated received signals, a slow-acting relay responsive to said first mentioned relay, another relay responsive to said slow-acting relay, means responsive to said slow-acting relay to start a motor, and means responsive to said other relay to stop the said motor.
  • a system for remotely controlling the driving motor of telegraph apparatus particularly for the wireless operation of telegraph apparatus in which the transmitted characters are analyzed in lines comprising a relay responsive to remotely generated received signals, a slow-acting relay responsive to said first mentioned relay, a further slow-:acting relay responsive to said slowacting relay, means responsive to said slow-acting relay to start a motor, means to maintain said motor in operation, and means responsive to said further slow-acting relay to stop said motor.
  • a system for remote control of telegraph motors comprising a slow-acting relay, a further slow-acting relay, first means responsive to said slow-acting relay to start a motor, second means to maintain said motor in operation, third means responsive to said further slow-acting relay to stop the motor, and a manual control key cooperating with said second means to start the motor and to maintain the motor in operation subject to control by said third means.
  • a system for remotely controlling the driving motor of telegraph apparatus comprising a first slow-acting relay responsive to a received prolonged line signal to operate its contacts, a driving motor, a relay responsive to operated contacts of said slow-acting relay and effective to start said motor, and a further slow-acting relay responsive to operated contacts of said first slowacting relay and eifective upon its energization to stop said motor.
  • a system for remotely-controlling the driving motor of telegraph apparatus comprising means responsive to a measured received signal ofpredetermined nature for starting a motor, local means for maintaining said motor in operation, and means responsive to a prolonged received signal of said nature for stopping said motor.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Selective Calling Equipment (AREA)
  • Relay Circuits (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)
  • Toys (AREA)
US58231A 1935-01-09 1936-01-08 System for remotely switching in and out the driving motor of telegraph apparatus Expired - Lifetime US2176312A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE449857X 1935-01-09

Publications (1)

Publication Number Publication Date
US2176312A true US2176312A (en) 1939-10-17

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ID=6538327

Family Applications (1)

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US58231A Expired - Lifetime US2176312A (en) 1935-01-09 1936-01-08 System for remotely switching in and out the driving motor of telegraph apparatus

Country Status (6)

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US (1) US2176312A (en(2012))
AT (1) AT148661B (en(2012))
BE (1) BE413003A (en(2012))
CH (1) CH187261A (en(2012))
FR (1) FR800963A (en(2012))
GB (1) GB449857A (en(2012))

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2561668A (en) * 1946-12-28 1951-07-24 Wm O Ballard Control device for dental engines and the like
US2583737A (en) * 1943-09-06 1952-01-29 Fed Cartridge Corp Photoelectric recording device
US2640874A (en) * 1949-08-04 1953-06-02 Times Facsimile Corp Starting and switching control apparatus for facsimile recorders

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2583737A (en) * 1943-09-06 1952-01-29 Fed Cartridge Corp Photoelectric recording device
US2561668A (en) * 1946-12-28 1951-07-24 Wm O Ballard Control device for dental engines and the like
US2640874A (en) * 1949-08-04 1953-06-02 Times Facsimile Corp Starting and switching control apparatus for facsimile recorders

Also Published As

Publication number Publication date
GB449857A (en) 1936-07-06
FR800963A (fr) 1936-07-23
CH187261A (de) 1936-10-31
AT148661B (de) 1937-02-25
BE413003A (en(2012))

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