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US2116990A - Selector apparatus - Google Patents

Selector apparatus Download PDF

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Publication number
US2116990A
US2116990A US56321A US5632135A US2116990A US 2116990 A US2116990 A US 2116990A US 56321 A US56321 A US 56321A US 5632135 A US5632135 A US 5632135A US 2116990 A US2116990 A US 2116990A
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US
United States
Prior art keywords
relay
circuit
wire
contact
circuit closer
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
US56321A
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English (en)
Inventor
Watanabe Yoshito
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Individual
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Individual
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L15/00—Apparatus or local circuits for transmitting or receiving dot-and-dash codes, e.g. Morse code
    • H04L15/24—Apparatus or circuits at the receiving end
    • H04L15/26—Apparatus or circuits at the receiving end operating only on reception of predetermined code signals, e.g. distress signals, party-line call signals

Definitions

  • This invention relates to a system of receiving a low speed repeating signal consisting of an alarming part composed of any desired number of signal relays and space relays alternately arranged which are operated successively to correspond to the repetition of the regular signal and space till finally an alarm circuit is completed; a signal relay system consisting of several delayed action rela s combined in such a man ner as to be operated successively in response to a signal lasting a certain time; and a relay system comprising several delayed action.
  • relays combined so as to be operated successively for a certain time interval or space between signals, characterized by wholly operating the alarming relay system for only a warning signal consisting of a certain number of the regular signals and spaces, starting the operation of said system over again in case of the irregularity in the time duration of the signal current and the time interruption of it or the time space in the above warning signal; continuing the operation of the space relay system once when started, even upon arrival of a signal and stopping such operation only when the above incoming signal has lasted a certain time.
  • the object thereof is to receive a warning signal accurately by preventing the operation of the space relay system from being disturbed by the arrival of another ordinary signal, for example, a signal according to Morse code, in the regular space time and thus saving said warning signal from being interferred with by such code signal.
  • the warning signal as it is termed in the present invention is such an electric signal that, for ex ample, signals lasting a pretty long time alternate with certain time intervals, and in a working example evplained later an alarm is operated when electric signals each lasting 3-5 seconds are repeated three times at intrevals of onehalf to one and one-half seconds.
  • an electric signal or impulse of about four seconds duration is transmitted continuously twelve times at intervals of about 1 second and any three of the signal impulses will be registered by the receiving system of this invention, whereupon. an alarm rings.
  • Figure 1 is a wiring diagram of the alarm signal receiving system according to the present invention.
  • Figure 2 is a sectional side view of an electric relay used in this system
  • Figure 3 is a front view of the same and Figure 4 is a, diagram showing the relation between the duration of the signal impulses as received and the starting and stopping periods of the space relays.
  • IM, 2M, and 2M are relays operated by incoming electric signals, each hav- 5 ing a delayed action, that is, the first-mentioned relay has a delayed action of 1 second; and the last two have delayed action each of 2 seconds, while the delayed action of a space relay S operated in the absence of an incoming signal impulse is /2 second.
  • the space relays IS and IS operate their respective contacts at the interval of 1 second.
  • A is an instantaneous relay at the receiving end and is adapted for closing a contact I when an electric current fiows through it by the arrival of an electric signalling impulse and also closing a contact 2 in the absence of a signal impulse.
  • B, D and E too are instantaneous relays.
  • the relays mi, 81, m2, S2, 1123 and s3 operate successively at the first regular impulse and regular space, the second regular impulse and space, and the third regular impulse and space, each being of instantaneous type for resetting the previously operated relay and also holding its own operation.
  • the last relay S3 is adapted for completing the circuit of an alarm L by its operation.
  • each relay When this receiving system is not operated, the contact of each relay maintains the condition as shown in the drawings, but makes an opening and closing movement instantaneously or within a certain time limit when in energized condition.
  • FIG. 1 is a relay which when energized opens its contact 1 for a moment.
  • Figures 2 and 3 show its construction.
  • a core 1' is mounted in a sleeve 10 of non-magnetic material. This core has its both ends engaged by springs P1 and P2 and is provided at its lower end with an arm projecting through a slot 10 formed in the sleeve.
  • a solenoid winding or coil C1 surrounds the upper end of sleeve w. When the core is energized the core 1 is attracted so as to compress the spring P1 and the arm u is moved to the position indicated by u.
  • the core Will drop down and running over the original position by its inertia and pressing the spring P2, will reach the position u"; where it enters the V-shaped space 1) formed by two contact springs l to push open the contact 1 for a moment and then is returned to its original position by the spring P2.
  • This circuit leads from terminal or pole il, through wire 48, circuit closer i, wire 42, wire 53, circuit closer 2), wire 54, circuit closer 1), wire '55, win lg of relay 5M and wire 55 to negative termina-
  • the contact e1 is closed to energize and operate the first mar relay m1 of the alarming part, while the contacts it] and 20 are closed, so that the operation of the said relay m1 is maintained by the said contact ill.
  • the circuits here run from the positive terminal through the circuit closer 61, wire 84, wire 85, wire Bl, wire 9
  • circuit closer ll As the circuit closer ll] is closed current will flow from positive terminal 16 through wire ll, circuit closer 1', wire 18, contacts 1, wire 79, wire 8
  • the circuits are as follows.
  • the circuit for relay D runs from the positive terminal through circuit closer or, wire M, winding of relay D and to negative terminal 85. Now current flows from positive terminal through circuit closer 03", wire 63, wire 62, circuit closer (1, wire 6!, winding of relay E, wire 60, circuit closer i, and wire 48 to negative terminal 49.
  • circuit closer e The closing of the circuit closer (ii by relay E establishes a holding circuit from posi tive terminal 64, circuit closer (14, wire 62, circuit closer d and wire 6
  • Energization of relay E opens the circuit closer e4.
  • the relay 2M When the signal impulse is of the regular length, namely 35 seconds, the relay 2M does not act on the circuit closers a, b, d and d. When said mark ends and the relay A becomes deenergized to open the contact I, the relays 2M and 2M will be deenergized, while the relays B, E and mi remain energized through the action of their holding circuits. The cessation of the signal im pulse is followed by a space and the following changes in the condition of the apparatus occurs.
  • the first space relay S is energized through the contacts 8, d, d1, 9 and g from the positive pole.
  • This circuit starts from the positive terminal and passes through circuit closer 8, wire 68, circuit closer cl, wire 69, circuit closer (11, wire Ill, circuit closer g, wire 'H, circuit closer 9', wire "i2, winding of the relay S, wire 13 and wire 48 to negative terminal 49.
  • the relay ilVI is reenergized to open (1" 1 second later, namely the time of delayed action of said relay IM and the relay E is deenergized because the circuit ,closer at is opened and the holding circuit through relay E is broken. This opens the contact 8, whereupon the circuit of the relay S is broken and the relay S is deenergized.
  • circuit closer 35 and to negative terminal I02. The energization of relay 81 opens contact 3
  • the circuit closer II is, however, closed and a holding circuit is established from the relay 81 through the wire 82 from the positive terminal I6 over the same circuit as closed the holding circuit for relay mi.
  • the energization of the relay IS also opens the circuit closer g and thus breaks the circuit through the relay S and deenergizes this relay so that the circuit closers j and 71/ open.
  • the energization of the relay IS also closes the circuit closer h in preparation for closing a circuit through the circuit closer IS.
  • the contact I is closed as described above to energize the relay IM and then a second after the second relay 2M. Also, the contact d is opened to cut off the circuits of the relays E, S and IS. Then, 2 seconds later, the relay 2M is operated to open the contact b and consequently the relay IM is reset and also it energizes the relay m2 of the alarming part by means of the closed contact e1, which relay m2 holds itself by its contact I2. The relay s1 is deenergized by the open contact 32.
  • the circuits here follow the same course as described for the energization of relay m1 except that from the wire 86 current flows through the wire 85, circuit closer 2
  • the circuit closer 32 is opened which cuts out the relay s1.
  • the circuit closer I8 is closed to establish a holding circuit for the relay m2 and the circuit closer 22 is closed in preparation for establishing a circuit through relay .92.
  • the relay S is energized as before and this starts a train of operations which eventually deenergizes relay m2 and energizes relay s2. It is not thought necessary to trace the circuits here because they can be traced by following the circuits for relays m1 and 81.
  • the relay 2M When, however, the received signal impulse lasts for three seconds the relay 2M operates as described above and the circuit of the first space relay S is brought to a condition open at only the contact d of the relay 2M, and accordingly if the signal impulse discontinues in 3 seconds and said contact 11' is closed, the said relay S starts the operation. If the signal impulse does not last 3 seconds and the contact I is opened, the relay 2M is deenergized and does not reach the time limit, so that the contact e remains in an open condition and the relay C is deenergized to open its contact I and cut off the circuit of the line q leading to the alarming part, thus deenergizing the relays mi .91, etc.
  • Figure 4 shows a relation between the periods of starting and stopping the operation of the space relay for the lengths of the regular signal and the space.
  • the lengths of the signal m and time space are 4 and 1 seconds respectively.
  • they are 3 and 1 seconds respectively.
  • the space relay S begins to be energized every 4 seconds as shown at So and a circuit leading to the space relay is cut off every 6 seconds by the opening of the contact d of the relay 2M.
  • the latter case may be easily understood from the above explanation.
  • the space relay mechanism thus starts its operation with the commencement of the space time and operates the relays S, IS and IS successively at the predetermined time limits, 1 and 2% seconds.
  • said space relay is reset, only when said signal impulse still lasts one second after it begins. Therefore, if a signal impulse begins after the space lasted more than 1 seconds, the time limit of the third space relay IS comes before the relay IM reaches its time limit, so that the contact 2' of the relay IS connected with the line q is opened to cut off the holding circuit of the relay mi, 31, etc. If a signal lasts more than 5 seconds, the relay 2M operates similarly to open the contact d and cut off the same holding circuit.
  • the alarm is not operated by an interference or noise, nor does any extraneous signal impulse arriving in the space time hinder the progress of the operation of the space relay mechanism.
  • the alarm is operated only when the regular alarm signal impulse and space are repeated certain times. Otherwise, the already operated part of the apparatus constituting this invention is restored to normal condition.
  • a master impulse receiving relay having a normally closed circuit closer and a normally open circuit closer, a control relay, circuit connections between said normally open circuit closer and the control relay including a normally closed circuit closer, a set of primary delayed action relays including a first primary relay and a plurality of successive primary relays including second and third primary relays, said plurality of relays including normally closed circuit closers each associated with a respective relay to open upon energization thereof, said last mentioned circuit closers being connected in series between the normally open circuit closer of the master relay and the first primary relay, each of said primary relays except the last including a normally open circuit closer closed by the energization of the respective relay to establish a circuit through the next succeeding relay, means actuated by the energization of each of the plurality of primary relays to establish a holding circuit through the energized relay, a pair of supplemental relays including first and second supplemental relays, means to establish a circuit through the first of said supplemental relays including a normally open circuit closer associated

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Alarm Systems (AREA)
  • Braking Arrangements (AREA)
US56321A 1935-03-27 1935-12-27 Selector apparatus Expired - Lifetime US2116990A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP468229X 1935-03-27

Publications (1)

Publication Number Publication Date
US2116990A true US2116990A (en) 1938-05-10

Family

ID=12758029

Family Applications (1)

Application Number Title Priority Date Filing Date
US56321A Expired - Lifetime US2116990A (en) 1935-03-27 1935-12-27 Selector apparatus

Country Status (5)

Country Link
US (1) US2116990A (xx)
BE (1) BE413292A (xx)
DE (1) DE667701C (xx)
FR (1) FR801262A (xx)
GB (1) GB468229A (xx)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2451810A (en) * 1944-12-22 1948-10-19 Ward Leonard Electric Co Electromagnetic controller
US3000002A (en) * 1956-02-29 1961-09-12 Koepenick Funkwerk Veb Electronic alarm system
US3119981A (en) * 1957-06-05 1964-01-28 North Electric Co Supervisory control system
US3194910A (en) * 1962-10-04 1965-07-13 Frank R Edgarton Inertial switch device
US3515992A (en) * 1967-06-09 1970-06-02 Itt Automatic alarm detector

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2451810A (en) * 1944-12-22 1948-10-19 Ward Leonard Electric Co Electromagnetic controller
US3000002A (en) * 1956-02-29 1961-09-12 Koepenick Funkwerk Veb Electronic alarm system
US3119981A (en) * 1957-06-05 1964-01-28 North Electric Co Supervisory control system
US3194910A (en) * 1962-10-04 1965-07-13 Frank R Edgarton Inertial switch device
US3515992A (en) * 1967-06-09 1970-06-02 Itt Automatic alarm detector

Also Published As

Publication number Publication date
FR801262A (fr) 1936-07-31
DE667701C (de) 1938-11-18
BE413292A (xx)
GB468229A (en) 1937-07-01

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