US2126846A - Multiple selector system - Google Patents

Description

Aug. 16, 1938. Y. WATANABE MULTIPLE SELECTOR SYSTEM Filed Jan. 17, 1955 2 Sheets-Sheet l INVENTOR. YqsHxTo W9 779M935 BY M04:

A TTORNEYS.

-Aug. 16, 1938. Y. WATANABE 2,126,346

MULTIPLE SELECTOR SYSTEM Filed Jan. 17, 1935 2 Sheets-Sheet 2 INVENTOR. YosH/To WATANADE 4' A TTORNEYS.

Patented Aug. 16, 1938 UNITED STATES PATENT OFFICE MULTIPLE SELECTOR SYSTEM Yoshito Watanabe, Kinukake-cho, Sums-kn,

Kobe, J

apan

Application January 17, 1935, Serial No. 2,157

In Japan March 12, 1934 3Claims.

elements to trace separate tracks when said mov-' able controller travels; the present invention is characterized by the fact that the sets of the groups of contact switching elements arranged to correspond with the arrangement of said controlled rollers are provided in a large number for several different signals, so that if there is any one among these sets which corresponds to an arriving signal, it is selected to complete its own alarming circuit; and also that directly after the operation of one set another signal is received and the corresponding set is operated in turn. The object of this invention is to enable a single system to serve as several different receiving systems and to receive messages independently of one other. The mechanical structure of the selector used in the present invention is described more clearly in my British Patent No. 436,343, or my French Patent No. 791,554, which correspond to the application previously mentioned.

Referring to the accompanying drawings,

Fig. 1 is a plan of the main part of a multiple automatic -telegraph receiving machine constructed according to the present invention; the groups of contact members disposed on the fixed frame are not shown in this figure.

Fig. 2 is an end view of a rotatable controller partly in section;

Fig. 3 is a section along the line 3-3 of Figure 1 and shows the superposed contact members;

Fig. 4 is a development showing an example of the arrangement of the contact making elements;

Fig. 5 is a development showing as examples several arrangements of groups of contact switching elements;

Fig. 6 is an across-the-line-wiring diagram of the whole system.

Referring to Figs. 1 to 3 a rotatable controller formed by mounting a group of slidable contact making rollers 4 upon studs 3 arranged between opposite side plates 2 with equal space between each stud and an adjacent one to form a squirrel cage, is adapted to rotate one'section forward for every element of a signal according to the Morse code, and also to rotate the rollers 4 at a certain selecting line to a predetermined side according to the kind of each element. Groups of switches to complete the contacts by being operated by the rollers are arranged to correspond with the expected signal and are connected to an alarming electric circuit, so that upon coincidence with an arriving signal they may be operated. Now, in the present invention as shown in Fig. 3, sets of several contact switching elements are pro- 'vided for many different signals and are connected to their respective alarming circuits equipped with electric magnets for operating electric lamps and other alarming devices said magnets having auxiliary contacts for self-holding in order that when-a set of contact point arrangement is operated by the arrival ofthe corresponding signal the alarming may be continued, unless said magnets are opened, and when another signal follows the above one, substantially the similar operation is caused.

In the drawings, I is a fixed frame of drum type secured to the base of the machine at either side of the rotatable body 2 and forms a bearing I for the shaft 8 of the rotatable body. At the periphery of said fixed frame I holes 9 for attaching the contact switching elements are provided at the position corresponding to that of each stud 3 of the rotatable body 2. 5 are several arcshaped partitions starting from a section next to the selecting line of the contact making rollers. They are combined with suitable holding plates 6 to partition the positions of the forward movement of the rollers into three tracks; 1. e., right, middle and left tracks, along the outer periphery of a row of the studs 3. s and m are the levers pivoted to the base at pivots f1 and f2 and also partially fitted to the ends of the rods 11.1 and uz connected to the armatures h' and g of magnets h and g respectively, so as to remove the roller 4 to correspond with a "letter space and dash marks according to Morse code. They are provided at their endswith pawls s and m consisting of springs. k and l are push rods having the end pawls mesh with theteeth of the ratchets w and w fixed to the shaft 8 of the rotatable body 2, while their other ends 01 and v2 arefitted to levers or rods Ill and Ill pivoted at their ends is and f4 respectively, said rods l0 and I0 being fitted to the ends of the rods us and 144 connected with the armatures i' and 1' of the electric magnets i and 7'.

Since it is undesirable to have the two selecting levers operate upon a roller of the same section, these levers are provided with side apertures and are guidedto move horizontally, as described more clearly in my co-pending patent application, Serial No. 2,156, filed January 17, 1935.

In Figure 6. A, B, D, E, h, 17,71, 7' show electric magnets; K1 is a switch to change an aerial line N in a radio for a wire telegraph line T; K: is a by-path switch; It is a controlling switch with an auxiliary contact 0 which opens when the switch is closed and which closes when the switch opens; R, a receiving relay; M, an amplifier and amplitude regulator; C1 and C2 are electric sources; F1 to F5 illustrate diagrammatically the arrangement of several series of multiple contacts on the fixed frame I; m to qtare relays which are provided with normally open and instantly closed contacts 114 to m, normally closed and instantly open contacts 151 to is and holding contacts e1 to es; L1 to L5 are signalling lamps;

Z and Z1 are buzzers.

The relay A is provided with an electric contact 01, which is a normally open and instantly closed contact, a normally open time delay closing contact oz, and a normally closed and instantly opening contact ce.' The electro-magnets B, D and E are provided with normally open and instantly closed contacts 03, c4, and as, respectively, while the electro-magnets i and a have push rods k and Z, which in cooperation with theratchets w and w fixed to the shaft of the rotatable body 2 move the rotatable body 2 forward by one step each time the magnets i and 7 are energized. As stated above, the electro-magnets h and 9 have selective levers s and g, respectively, which shift the contact-making rollers 4 selectively when each magnet is operated, the lever 3 being provided with electric contacts a and b, which are closed when it operates.

In the arrangement shown in Figure 6, if the switch K1 is closed on the side of the antenna II or the wire telegraph line 2 and the switch k: is kept closed and an electric signal corresponding to the dot mark is received, the relay R is energized so that it attracts its armature 20 and closes the contact 2|. Then the circuit of the electromagnet A is completed, said circuit comprising Cl, the lines 22, 23, and 23', the coil of the electro-magnet A, the line 24, the closed contact 2|, and the lines 26, 26, and 21; then the electro-magnet A is operated.

If, however, the incoming signal is a clot mark,

the current flows through the coil of the magnet A for a very short .time only, and, therefore, merely closes and opens the contacts 01 and 0e, respectively, without closing the time delay contact ca. Then the circuit of the electro-magnet :i is completed, said circuit including the battery C1, the line 22, the battery C2, the lines 28, 29, and 36, the closed contact oi, the line 3|, the coil of the electro-magnet 1, and the lines 32, 26, and 21. Thus the electro-magnet 7' moves the controller 2 forward by one step through the ratchet w by means of a push rod 1.

However, upon receiving an electric signal corresponding to the dash mark, the relay R attracts its armature 20 to close the contact 2| for a comparatively long time, and consequently the electro-magnet A first closes the contact 01 by the completion of an electric circuit similar to the one described and actuates the electromagnet 5!, whereby the controller 2 is moved for-' ward by one step, and then the time delay contact ca is closed, so that the magnet B is enersized by a circuit consisting of 'the contact c2,

the line 34, the coil of the magnet B, the lines 36, 26, and 21, the battery C1 and the lines 22, 23, and 36; the magnet B closes the contact 0:. Then the magnet Q is energized by a circuit consisting of the closed contact 03, the line 33, the magnet g, the lines 33', 26, and 21, the batteries C1 and C2, and the lines 28, 29, and 40, and moves the roller4 along the stud 3 by a selective lever m so as to transfer it to the dash mark track. Consequently, upon receipt of the dash mark by this system, the magnets A, a, B and g are actuated to move the controller 2 forward by one step and at the same time to shift the roller 4 to the left from the middle position and thus transfer it to the dash track.

Next,'in case of the letter space or the termination of an incoming signal, the contact 2| of the relay R is kept open for a longer time than the space time and, accordingly, the contact ca of the magnet A too is kept in a contacting condition for a similar time. Therefore, on this occasion D is energized by a circuit consisting of the closed contact 06, the lines 31 and 38, the coil of the magnet D, theJlines 39, 26 and 21, the battery C1 and the lines 22 and 22. The magnet D closes thevcontact c4, whereupon the magnet E is energized by a circuit consisting of the contact 04, the line 4|, the coil of the magnet E, the

lines 42, 26 and 21, the battery 01, the lines 22 and 22', the contact cc and the lines 31 and 31. The magnet E closes the contact 05, and then the magnet 11. is actuated by a circuit consisting of said closed contact 05, the line 43, the coil of the magnet h, the lines 46, 26 and 21, the batteries C1 and C2 and the lines 28, 29 and 45, thus removing the roller'4 to the space track or the right track and at the same time closing the contacts a and b. Then, the magnet i is actuated by a circuit consisting of the closed contact a, the line 46, the coil of the magnet i, the lines 46, 29 and 28, the batteries C2 and C1 and the lines 21, 26 and 41, and moves the controller 2 forward by one step through the ratchet W. In short, according to this arrangement, if the dot mark is received, the controller 2 is moved forward and the roller is caused to enter the middle track. Also, in case of the dash mark the controller 2 is moved forward by one step, and after that the roller 4 is caused to enter the left track or dash track, while when it is a letter space, theroller is removed with regard to the right track or the space track, after which the controller is moved a step forward.-

The multiple contact groups F1F5 shown. in Figure 6 have their respective contacts I4, |5,and l6 (see Fig. 3) arranged on the fixed frame-so as to be able to receive the signals SOS, the ordinary call signal, ABC, the weather signal, MM, the general search signal, QC, and the alarm to sailing vessels, TIT, as indicated in Figure 5. Consequently, with a single apparatus it is possible to receive several kinds of predetermined signals. Each of these contacts consists of a stationary contact member I6 and a movable contact member having an arm l5 adapted to receive pressure from the roller 5; the contact terminals l3 connected with these contact members are connected in series in a certain order to correspond to the predetermined signals SOS and ABC, so that upon the entry of the roller 4 into the dash track, each dash contact I in said track is closed successively, while when it enters the dot track, each contact H5 is closed. Also, when the roller has been selected to the space track, each contact I6 is closed.

the controller moves forward three times for the first three dots and delivers the rollers Nos. 2, 3 and 4 to the middle track, and for the next letter space transfers the roller No. 5 to the space track.

With regard to the next three dash marks representing the letter it advances threetimes and at the same time transfers the rollers Nos. 6, 7 and 8 to the dash track, while for the letter space it removes the roller No. 9 to the space track. Next, the rollers Nos. 10, 11 and 12 are sent to the middle track successively for the three dot marks representing S, followed by the long letter space, when the electro-magnets h and i operate. Therefore, the controlled roller arrangement takes the form shown in Figure 4. Accordingly,

the contacts of the contact group F1 are connected in series and also since the electro-magnet h is actuated to close the contact b in Fig. 6, the alarm relay Qi is operated by a complete circuit consisting of the contact I), the line 48, the contacts connected in series in the group F1, the line 49, the alarming relay (11, the lines and 51, the switch K3, the lines 23 and 22, the battery C1, and the lines 21, 2B and 53 to close the contacts e1 and m and open the contact 151. That on this occasion the relay qi operates alone is evident from the difference of the arrangement of the contacts of. the groups F2-F5 from that of the controlled rollers Nos. 1-12 corresponding to SOS.

Thus, as explained above, when SOS is received and the relay m is operated, its holding circuit is completed by a circuit consisting cf the auxiliary contact e1, the lines 54 and 49, the relay m, the lines 5| and 5|, the switch K3, the lines 23 and 22, the battery C1, and the lines 21, 25, 55 and 56. Thereupon the lamp L1 and the buzzer Z are operated by a circuit consisting of a closed contact 121, the line 5-1, the lamp L1 and the buzzer Z, which are connected in parallel, the lines 58 and 5|, the switch K3, the lines 23 and 22, the battery C1, and the lines 21, 26, 55 and 59.

Similarly, if the signal "ABC is received, the arrangement of the controlled roller groups coincides with that of. the series contacts in F2, whereby qz is operated by a complete circuit consisting of the closed contact series in F2, the line 60, the relay qz, the lines 6| and 5 I, the switch K3, the lines 23 and 22, the battery C1, the lines 21, 26 and 53, the contact b and the line 48. Thus, the contacts 112 and er are closed and is opened. Then the relay qz is held in an operative position by the device [2 and the signal lamp L2 and the buzzer Z1 are operated by a closed circuit consisting of the closed contact m, the line 54, the lamp L2, the line 65, the buzzer: Z1, the line 5 I the switch K1, the lines 23 and 22, the battery C1, and the lines 21,26, 55 and 63.

The operating circuits of the alarm relays qa, I14 and (15 corresponding to the signals MM", QC and TTT, respectively, may be easily traced in a similar manner.

When the switch K2 is left open, the current which has entered from the aerial line N and has been amplified by the amplifier M, passes through the switch K1, the line 4, the relay R, the line 58, the contact ts, the line 61, the contact t4, the line 68, the contact ta, the line 69, the contact t2, the line 10, the contact t1, the lines 1| and 12, the switch K1, and the line 13 to earth. Accordingly, upon receipt of a desired predetermined signal any of the relays q1qs operate to energize the corresponding lamp and buzzer and at the same time the coil circuit of the relay R is broken by oneof the contacts t1,te of any of. the operated relays (Ii-(15, so that none but the first arrived predetermined signal is received.

In the above example,although the alarm circuit completed upoh' receiving, for instance, the signal SOS is cut oil by opening the switch &, the series contact in F1 regains its original condition corresponding to "808 when the switch K2 is closed again, thus completing the alarm circuit. To obviate this inconvenience, the switch K3 is provided with the auxiliary contact 0, which is temporarily closed when the switch K3 is opened, and the magnet A is temporarily energized by a circuit consisting of a contact 0, the lines 15 and 24, the coil of the magnet A, the lines 23 and 22, the battery C1, and the lines 21, 26, 25 and 16 to close the contact c1, whereby the magnet :i is actuated to move the controller 2 forward by one step, thus breaking the connection of the series contact of F1, sothat the alarm circuit is not completed again even if the switch K3 is closed again, and the whole system is reset so that it is able to receive the next signal.

I claim:

1. A selector device for closing selectively one of a plurality of circuits in response to different prearranged codes of dot, dash and interletter space impulses, comprising a stationary frame, a rotatable squirrel-cage type. controller mounted for rotation in said frame and having studs fixed thereto, said studs being equally spaced at the periphery of said controller and each having a contact roller mounted thereon .slidable longitudinally thereof, partitions fixed to said frame adjacent to the path of movement of said studs forming three passageways corresponding to dots, dashes and interletter spaces having entrances for said rollers, means for normally causing the rollers to be positioned to enter the dot passageway, selecting means positioned at the'entrance to the passageways for moving the positioned roller to cause the roller to enter either the dash or interletter space passageway, means responsive to the receipt of a dot, dash or interletter space impulse to move the controller the space from one stud to the next to successively present the rollers to the selecting means, means responsive to the receipt of a dash impulse to cause the selecting means to move the then presented roller into the dash position, means responsive to the receipt of an interletter space impulse for causing the selecting means to move the then presented roller to interletter space position, a plurality of groups of contacts mounted on said frame to be engaged by the rollers. said groups of contacts being each ar-- a and including a receiving relay for receiving the impulses and repeating them to the selector, a circuit for said receiving relay, a separate relay included in said separate selective circuits for energization each having a contact normally closed when the relay is deenergized, each of said normally closed contacts being included in series in said receiving relay circuit to thereby render the receiving relay non-responsive to further impulses and means for shunting said normally closed contacts.

3. A device in accordance with the first claim,

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