US2248820A - Electrical indicating means - Google Patents

Description

July 8, 1941. Y M. L. HASELTON 2,248,820

ELECTRICAL INDICATING MEANS Filed Oct. 6 192a s Sheets-sheaf, 1

To APP/Maia;

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1943a ATTORNEYS Juli! 3, 1941- 'M. L. HAS ELTON --2,248,820

ELECTRICAL INDICATING mums Filed 001:. 6, 192a s shbts-sheet 2 55 SEE H6. 3

SEE FIG 5 SEE F/ e. 5

SEE F16 5 SEE F/ 6 3 SEEP/6 5 555 Fla 5 M ATTORNEYS y 1941- M. L. HASELTON 2,248,820;

ELECTRICAL INDICATING MEANS Fil ed Oct. e, 1928 s Sheets-Sheet s n FIG 1 Jam ATTORNEYS y 1941- M. L. HASELTON 2,248,820

- v ELECTRICAL INDICATING MEANS I Filed Oct. 6, 192a 6 Sheets-Sheet 4 was TERD/l Y's CL 0.55

INVENTOR TENS U/v/ rs F/McT/ m/s BYW- y a g fall/b ATTORNEYS July 8, 1941. I-YIASIELTON 2,248,820

ELECTRICAL INDICATING MEANS Filed Oct. 6, 1928 6 Shee'ts-Sheet 5 INVENTOR Marlazzlfiawll'ozz.

" UM/Vang M2 ATTORNEYS July 8, 1941- M. 1. HASELTON ELECTRICAL INDICATING MEANS 6 Sheets-Sheet 6 Filed Oct. 6, 1923 53.0% hwww HE is Gdumii w w QM Ab ATTORNEYS Patented July 8, 1941 ELECTRICAL INDICATING MEANS Merton L. Haselton, New York, N. Y., assignor, by

mesne assignments, to The Teleregister Corporation, New York, N. Y., a corporation of Delaware Application October 6, 1928, Serial No. 310,719

27 Claims.

This invention relates to electrical indicating means and more particularly to indicating or signaling apparatus and methods, according to which indicating devices corresponding to a large number of different items may beoperatedat various receiving stationsand all controlled over a single wire or a small number of wires from a central point or points. 7 ,g

While not limited thereto, the invention isparticularly adaptable to the transmission and posting of varying quotations or prices of a multitude of items such as stocks, bonds or commodities.

The transmission of the quotations may be controlled from central points such as stock exchanges, and arrangements are provided whereby a large number of brokers or others may be simultaneously provided with quotation service for as many of the stocks or other items as are of particular interest at each receiving station.

The objects of this invention include the provision of apparatus of the above indicated class which will be rapid,'accurate and dependable in operation, and if desired, operable over a single line wire.

Further and more specific objects, features and advantages will more clearly appear from the following description; when taken in connection with the accompanying drawings and'the appended claims. V

The invention consists in' the novel signaling features, circuit arrangements, methods and combinations of circuits and parts as'he'reinafter described by way of example only, as being illustrative of a certain preferred embodiment of the invention.

In the drawings, Fig. 1 comprises a schematic diagram showing in part the circuit arrangements of a receiving equipment comprising one embodiment of the invention. It will be noted that this figure is divided into parts 111,111, 10 and 1d, and the figure extends over four sheets;

Fig. 2 is a schematic diagram illustrating the general method of transmission utilized in connection with this invention;

Fig. 3 illustrates in further detail a portion of the schematic diagram of Fig. 1, which is repeated several times in the circuit arrangements, as indicated particularly in Fig. 1b;

Fig. 4 comprises a tabulation of the circuits and relays of Fig, 3 and indicates the manner of operation of the same;

Figs. 5 and 6 respectively illustrate in further detail portions of the schematic diagram of Fig. 1b, and

Fig. 7 is a sectional view of one type of indicator that may be used in the system disclosed.

of the four digits of each quotation, such as open, high, low or last of each stock or other item. The circuit arrangements hereinafter described in addition provide for posting the fyesterdays close or other like quotation, controllable in certain respects independently of the open,? high, low and last quotations or their equivalents. The indicators of; the present apparatus like those of my co-pending application, are arranged to be operated stepby-step by the use of spaced impulses. Such indicators are also designed to be'restored toa normal setting prior to the setting up of a new quotation, and such restoration is preferably as- 'complished by applying a total of at least tenimpulses to all of the indicators which are to be reset. These ten restoration impulsesserve to advance each of the indicators individually until they arrive ata predetermined normal position, whereupon a control switch at each indicator is operated to render any further restoration impulses inefifective to operate the indicator thus restored. Accordingly, the provision of at least ten restoration impulses insures movement of all of the indicators which are to be reset, to their normal positions, regardless of their previoussettings and regardless of whether the previous settings were accurate or otherwise. The details of construction of the indicators and the brokers board per se are set forth in full and claimed in my aforesaid patents, and accordingly the same will not be here described in further detail. In this connection, reference may be made to Fig. 1d, however, which illustrates the electrical connections for a typical group of such indicators for posting the digits of'the quotations for one stock.

The circuit arrangements of Figs. 1 and 2 will now be briefly outlined to give the general scheme of operation of the system and thereafter the various circuits will be described'in further detail.

It will be understood that numerous brokers boards located at separatedpo'ints may be' controlled from a single transmitting device. A

distributor is indicated at 2 l transmitting device adapted to the particular receiving circuits hereinafter described is schematically indicated in a general way at the left-hand side of Fig. 2. The system of multiplex transmission embodying the use of a well known type of synchronous distributor is used. In Fig. 2 a distributor is indicated at l adapted for use with a five unit code system. Five transmitting keys are schematically indicated as at H for applying current from the source [2 to the desired segments l3 on the distributor to transmit impulses according to a predetermined code relationship over a line wire I4. It will be understood that the transmitting keys ll maybe operated automatically or semi-automatically by suitable transmitting apparatus forming no part of the present invention.

The line wire I4 may be branched as indicated at [5 to run to the various receiving stations. Line relays as at It may be located at each receiving station, a ground return from each of such relays being provided as indicated to complete the line circuit back to the source of current l2. A typical receiving station distributor ,is schematically indicated at H and its rotating known, the details of construction and operation thereof will not be described herein except in so far as necessary to reveal the manner in which the same may beutilized tooperate the receiving station circuits hereinafter described.

In Fig. 1a a well knownform of stop-start This distributor is arranged to distribute impulses received over the line 14 to the five receiving selector relays 22 which function to prolong the effective length of the line impulses to insure proper operation of the circuits. The relays 22 also function to delay actual operation of the succeeding circuits until the-distributor has completed one revolution, thus insuring proper functioning of 'the apparatus in accordance with the intended code.

From the relays 22 the coded impulses are brought into either a group of bus wires 23 for operating the 'selector circuits shown in Fig. 1,

apparatus maybe used .to select another stock while the indicators for the stock chosen by the circuits shown inFig. 1 are being reset.

During the initial revolution ofthe distributor at 2| a group of coded impulses will be received, whichat thetermination of the first revolution of the distributor are imparted to the busses 23 and thence/through busses 26 into a group of code register relays located at 21 in Fig. 1b and shown in further detail in Fig. 3. These relays will function to place a grounded battery connection upon one of the bus wires 28,

which in turn will complete a circuit through one of the relays 29, 30, 3|, 32, 33, 34, 35, 36 or 31 (see Fig. 1c). The operation of one of the relays 29 to 33 will determine whether or not the open, high, low, last or yesterdays closing quotation is to be reset for whatever stock is subsequently selected, The operation of the relay 34 will cause the high and last indicators to be operated together. The operation of relay 35 will cause the indicators for the low and last to be operated together, and if relay 36 is energized, then the open, high, low" and last will be operated in unison. If the relay 31 is operated, the existing open, high,"

"low and last quotations posted for the particular stock to be chosen will be wiped out or in other words, the indicators therefor will be restored to exhibit blank spaces.

Therefore, the first group of coded impulses resulting from the initial rotation of the distributor at 2| will choose or select for operation one of the relays 29 to 31 and thus determine in which of their various difierent characteristics the quotations to be subsequently selected will bechanged.

Upon arrival over the line wire of the second series of coded impulses, the distributor at 2| will be released for another rotation and a second group of coded impulses will be prolonged at the relays 22 and subsequently simultaneously applied to the busses 23. However, due to the operation of certain relays hereinafter described in connection with Fig. 3, this second series of impulses will be conducted over connection wires 38 into a group of code register relays at 39, which as above stated are also arranged as shown in detail in Fig. 3. The operation of the code register relays 39 in turn cause a grounded battery connection to be applied to a selected one of the connection wires 43, which operation in turn causes the energization of one of the relays asat 4|, 4m, 4|b, etc. In a similar manner, the third group of coded impulses received during the third rotation of the distributor are applied 'to connection wires 42, and thence to a third group of code register relays at 43 for choosing one of the wires 44. This selection of one of the wires 44 in turn results in the energization of one of the contacts as at 45,- 45a, 45b, etc., a group of each of which is provided respectively upon the relays 4|, 41a, etc.

Also,-in a similar manner, the fourth group of coded impulses may be conducted over connection wires 46 to a fourth group of code register relays 41, which in turn cause a grounded battery connection to be applied to a selected one of the wires 48'. The wires 48' in turn are continued by suitable conductors as at 48' (see Fig. 10) which conductors form the horizontal bars of a selector grid, the vertical conductors or bars :of which, as at 49 respectively being electrically connected to the various relay contacts 45, 45a, 451), etc., whenever the corresponding relays 4!, 41a, etc., are energized.

The three groups of code register relays 39. 3 and 41 therefore function to choose a desired stock or other item, the quotations for which are to be reset. Such choice of a particular stock involves applying a grounded battery connection to one of the horizontal grid conductors 48 and to one of the vertical grid conductors 43. Relatively demountable connections or quick-detachable plugs may be applied as at 50, 5! and 52 at the various intersection points of the horizontal and vertical grid conductors. From these detachable or plug connections pairs of relatively 'flexible'seleotor circuit wires as at 53 may extend for operating certain relays on the brokers vof the various stocks or other items for which service is made available by the system. However, individual brokers will not be interested in many of these stocks or items, so that in many actual installations, selector circuits and detachable connections or plugs may be applied to only those intersections on the grid board corresponding to stocks of particular interest at such installations.

The fourth revolution of the distributor at 2| will be immediately followed by a fifth revolution, which in turn will impart a group of coded impulses from bus wires 23 to connection wires at 54 for operating a fifth group of code register relays at 55, the arrangement of which is also shown in detail in Fig. 3. The code. register relays at 55 will cause a ground connection, to be applied to one of the connection wires at 56 running to a local impulse transmitter, or counting device 51.which is illustrated in detail in Fig. 6. In like manner, the sixth, seventh and eighth revolutions of the distributor at 2| will cause groups of impulses to be imparted to connection wires 58, 59 and 60 respectively for operating code register relay groups at 6|, 62 and 63 respectively. The code register relays 6|, 62 and 63 when thus operated, cause a ground connection to be placed upon one of the wires of each of the groups 64, 65 and 66 respectively, all ofwhich wires run to the local impulse counter 51 for controlling the operation of the same at the proper time. 1

Meanwhile, however, at .the completion of the selectingoperations by the code register relays 41, one of the relays embodied in the group 41 not only serves to transfer the succeeding group of code impulses to the code register relays 55,

but also initiates the operation of a local impulse counter or transmitter 61, the details of which are illustrated in Fig. 5. The operation of the impulse counter 61 is started through the medium of 'a connection wire 68 running from the code register relays 41.

The purpose of the impulse counter 61 is to apply a series of ten impulses to each of, four bus wires at .69 and. after this is accomplished, a,relay associated withthisimpulse counter and operating over connection wires 10 and 10', causes the impulse counter 51. to be set in operation for applying a predetermined number of impulses to each of the bus wires 1|, 12, 13 and 14.w bich are joined respectively to the several bus wires .69. The last four groups of coded impulses, which as above explained cause ground connections to .be applied to one of each of the groups of wires 56, 64, 65 and 66, serve to determine the values respectively of the four digits representing the new quotation which is to be posted by the selected indicators. The ten impulses initiated on each of the bus wires 69 by the impulse counter 61 will serve to insure the advance of the indicators for each-of the four digits of thestock selected, through a sufficient number ofsteps to restore the same to a normal or blank setting. Thereafter the impulse counter51as controlled by the four grounded connections 56, 64, 65 and 66, will serve to apply to the bus-wires 1| to 14 respectively in each case, a number of impulses corresponding to each of the four new digits to be posted by the indicators. That is, the code register relays 63, 62 6| and 55 respectively correspond tothe hundreds, tens, units and fractions digits to be posted. Likewise, the bus bars 1|, 12, 13 and 14 correspond respectively to the hundreds, tens, units and fractions digit indicators.

The keys I I of the transmitter shown in Fig. 2 cause signals to be impressed on the segments 53 of the distributorv In in various combinations to transmit coded impulses representing digits and to transmit coded impulses representing the blank position, and thevarious relays 22 of Fig. la are set up in combinations inaccordance with the code transmitted, whether such code represents digit. control or blank control. One advantage of the, arrangement is that if there is a price change, f or example, from ten to nine, then a digit will be transmitted to reset the units indicator to 9, anda blank will be transmitted to set the tens indicator drum to blank position. Thus the transmitter is arranged to transmit item selection signals andsignals corresponding "to avariable number of digits and to exercise upon the number 'to (see Fig. la) .'to a duplicate selector apparatus (not shown in the drawings) for the purpose of choosing another stock for which the indicators are to be reset, and for the purpose of storing in other code register relays, impulses which will determine the resetting of such other selected indicators.

In this way the partof the receiving circuit shown in Fig. 1 may be utilized during the actual operation of the chosen indicators to reset the same, while in the other half of the system the necessary impulses are being stored up for later changing another quotation. The two portions of the receiving apparatus may thus be alternately brought under the control of the distributor.

In each of the two portions of the receiving apparatus, as soon as the local impulse counter 51 has completed its operation of supplying the desired impulses, it automatically performs the additional function of releasing the setting of all of the code register relay groups, whereby the same are restored to normal condition ready for the next cycle of operations.

Referring to Figs. 1c and 111, it will be observed that a plurality of busses 15, 1.6, 11, 18 and 19 extend from the contacts of relays 29 to 33 respectively. These busses are continued into the the brokers board per se and run adjacent to the indicators for all of the various stocks or other items. A plurality of similar busses 86, 8!, 82, 83 and 84 are also indicated and these are intended to cooperate with the duplicate selector apparatus above referred to in the same manner that the busses 15 to 19 cooperate with the selector equipment above described. As will be hereinafter further explained in detail, either of these two sets of busses may be alternatively associated with the indicators for any particular stock. A multicontact relay as at 85 is provided for the connections to the indicators of each stock, whereby when such relay is actuated, the indicators for the particular stock chosen will be connected in circuit with one of these groups of busses. The multicontact relays as at 85 in turn are operated over selector wires as at 86, which as indicated in Fig. 1c are associated with the selector circuits as at 53, through relays as at 81.

The connections associated with one of the selector circuits 53 may be conveniently explained in detail at this point. It will be recalled that the code register relay group 43 serves to choose one of the connection wires 44 and to place a grounded battery connection thereon. Let us assume that such a battery connection has been applied to the connection wire indicated as 44' in Fig. 10. Let us also assume that relay lId has been selected and energized by the operation of the code register relays 39. Then the connection wire 44' will run from the grounded battery connection at the code register relays, through the corresponding contact of relay Md, to one of the vertical conductors indicated at 88 on the grid board, and such conductor will therefore be connected to the battery. Let us further assume that one of the horizontal grid conductors as indicated at 89 has likewise been connected to a grounded battery by the operation of code register relays 41. The detachable plug or connection shown at 52 is provided with two contacts electrically connected respectively to the intersecting conductors 88 and 89 so that the battery circuits thereof are continued respectively through the selector wires 53. It will be observed that the circuit of the conductor 88 runs through the relay 81 and thence to a ground return. Hence, this relay will be energized closing its contact 99, which completes the battery circuit of conductor 89 through wire 36 to relay 85 and thence to ground return. Therefore, the energization of the intersecting conductors 89,

99, on the grid board as a result of the selecting operation, results in the operation of the multicontact relay 85 corresponding to the particular stock selected.

Operation. of distributor.Reverting now to the description of the distributor H, the arrangement I and operation of the same will be described in detail.

The distributor is provided with a rotatable arm 9I operated by a rotating shaft 92 through a friction clutch 93, which in turn may be connected to a constantly driven shaft member 94. The shaft member 94 may be driven as by a motor 95 at a speed slightly greater than the maximum normal rotational speed of the shaft 92 and arm 9|. A locking and releasing member is indicated at 96, the position of the same being magnetically controlled by relay or solenoid 91, so that when the latter is deenergized, the looking member 96 will engage the rotating arm 9I and prevent rotation of the same. solenoid 91 is energized, the same will retract the locking member 96 and permit the rotatable arm 9I to rotate through one revolution in the direction indicated by the arrow.

' 7 An impulse generating device is indicated at 98, the same being operated from the shaft 94 to apply impulses from a grounded source of current 99 to a bus wire I99 for actuating the indicators step-by-step through circuits hereinafter described. Gear boxes as at I9I and I92 When the are preferably interposed in the shaft 94 at each side of the impulse generating device 98, whereby the impulse generator may be arranged to generate impulses at a desired predetermined rate in respect to the rate of rotation of the distributor arm 9|. That is, such gear boxes may be so designed as to operate the distributor at the proper speed to economically utilize the elapsed time necessary for the actual operation of the brokers board indicators.

It will be observed that the distributor 2I has an outer ring comprised of five code segments I93 to I91 inclusive, which are respectively con nected to the circuits of the five receiving selector relays 22. This outer ring of the distributor also has a sixth insulated segment I98 connected to a contact I99 of a starting and holding relay H9. The circuit'from segment I98 through contacts I99 is continued through an associated starting and holding relay III, and thence through a ground return to a battery II2, which in turn is connected to a segment II3 on another ring of the sunflower. Whenever the rotating arm 9| passes over segments I98 and II3, these two segments are connected together by way of a connection on the arm as indicated at H4. The major part of the ring in which segment II3 is located comprises a segment II5 also associated with the code segments I93 to I91 by means of the connection II4. The distributor has in addition two inner rings having cooperating segments II 6 and H1, which during a portion of each revolutionof the distributor are connected together by a connection IIB carried by the rotatable distributor arm.

The operation of the distributor is as follows: When the line wire I4 is deenergized, line relay l6 will be deenergized and its two sets of contacts H9 and I29 will be open. Assuming that the distributor arm is in locked position, when an impulse arrives over the line I4, the relay I6 will close its contacts H9 and I29, thus applying current from a grounded source I2I to the segments H5 and H6. From segment IIB the circuit will be continued through connection II8, segment II1 to relay or solenoid 91, and a ground return, whereupon this relay or solenoid will unlock the catch 96 and permit the rotatable arm to start a revolution. As soon as the rotatable arm reaches segment II5, it will be in a position to impart any succeeding impulses arriving over the line wire to the several code segments I93 to I91 by way of the connection II4. Therefore whenever the rotatable arm arrives over a code segment at a time when an impulse is arriving over the line wire, circuits will be established as follows: grounded source of current I2I, contact I29, segment I I5, one of the segments I93 and I91, through one of the relays 22, connection wire I22 to release contact I23 under the control of the relay or solenoid 91. Contact I23 will be closed at these times because solenoid 91 will be 'deenergized as soon as the rotatable arm leaves segment II 1.

Operation of selector relays 22.Let us assume that for example two of the relays 22 have become momentarily energized in the manner above described. Such two relays will immediately be provided with momentary holding circuits by way of contacts as at I24, which will complete such holding circuits through the winding of relay II9 to a battery and ground at I25 and through the ground return, contact I23 and connection I22. Relay II9 when thus energized will close the contacts I99 and prepare a circuit therethrough.

After a very short interval, the rotatable distributor arm will'arrive at the sixth segment I08, which will result in the closing of a circuit through contacts I09 and relay III. Contacts I25 and I2? of this relay will thereupon be closed for a short interval, whereupon circuits will be completed from a ground at I23, through contact I27, through contacts as at I29 of such of the relays 22 as have been energized, thence through the corresponding connections I30 and throu h the contacts of the multicontact relay 24 to the busses 23 or 25 as above explained. Meanwhile another circuit is established from grounded battery I3I, through contact I26, thence through break contact I32 on relay 24, and through the winding of a relay I33. The relay I33 thereupon picks up and establishes a holding circuit for itself through its contacts I34 from a grounded battery I35, the circuit being continued through a release bus I36 which is normally grounded within the local impulse transmitter 51 in a manner hereinafter explained. This bus remains thus grounded and the relay I33 remains energized until the new quotation is postedor other actuating operations completed, and until such time as the code register relaysare .to be released in the manner above outlined. Meanwhile relay I33 maintains its contacts at I31 and I38 closed, the former providing a battery supply circuit irom a grounded battery connection at I39 to a battery supply wire I40. The contact I38 applies a ground as indicated, to a ground supply wire I4I. These battery supply andfground supply wires are instrumental in the control of the code register relay groups as hereinafter explained and hence these circuits are maintained by the relay I33 and its holding circuit until the impulse counter ,51 completes the actuation of the chosen indicators.

The original circuit of relay I33, however, and contact I26 will be opened as soon as the distributor arm passes segment I08 and completes its revolution, since at this time battery .2 will become disconnected, permitting relay III to drop out. The interval during which the relay III is maintained energized thus determines the duration of the elongated code impulses which occur in the busses 23 and 25.

Also, when the distributor arm arrives again at its starting position, it will be at least momentarily stopped by the catch 96 and it will wait at this position until another starting impulse arrives over the line wire for energizing solenoid 97. This next starting impulse will of course open contact I23 and thus release the holding circuits of relays 22 and also release relay'IIO, thereby restoring the distributor circuits to condition for receiving another group of coded impulses.

Operation of duplicate selector apparatus.As soon as the code register relays 63 have completed their operations, they will apply in a manner hereinafterdescribed, a ground connection to a wire I42 (see Fig. lb), and thereby complete a circuit through relay 24 and its operating battery and ground at I43. Relay 24 will thereupon operate its two-way contacts as at I44 and shift the same so as to connect the several wires I30 to the busses 25 running to the duplicate selector apparatus, whereby the coded impulses resulting from the succeeding rotation of the distributor will be delivered to such duplicate apparatus while the part of the system shown in Fig. 1b is completing its operation. Relay 24 thereupon immediately establishes a holding circuit for itself through its contact I45 and a contact I46 provided on a relay I41. Also relay 24 moves its contact I32 to the make position whereby a relay in the duplicate apparatus corresponding to relay I33 may be operated.

After the appropriate group of coded impulses are delivered to the duplicate apparatus, such apparatus will automatically apply a current to relay I41 in substantially the same manner that relay 24 was operated, whereupon the holding circuit of relay 24 will be released because of the opening of contact I46. The circuits will now be in condition for discharging a group of coded impulses into the busses 23 again.

Operation of code register reZays.The circuits of the code register relays as shown in Fig. 3 in connection with the table of Fig. 4, as above stated, are repeated eight times in the circuits as shown in Fig. lb and accordingly the following description is made applicable to such relays as interposed in each of these eight positions.

The respective relays of this group are designated by the letters (A) to (G) inclusive. Five connection wires leading out to the busses 23 are designated respectively as KI to K5 inclusive. The connection leading out to the battery supply wire I40 (as with code register relays 21, 39, 43 and 47) or alternatively, to the ground supply wire I4I (as with code register relays 55, 6|, 62 and 63) is identified in Fig. 3 by the letters GS or BS. In addition, each group of code register relays has an incoming grounded wire or ground in, GI, and an outgoing ground wire, or ground out, G0, the relationships of which are indicated in Fig. 1b.

Assuming that with code register relays 21, for example, a ground has been applied to GI by the operation of relay I33, then such ground will be extended through contact I48 of relay A, to relay B, which will be energized by its battery I49, through the ground return indicated. Relay B has five contacts as at I50 for completing the circuits of wires KI to K5 respectively, throughrelays C to G inclusive respectively, by way of battery and ground connections as at I 5 I. Below each of the relays C to G inclusive, are a plurality of interconnected make and break contacts under the control of these relays and all arranged to be connected either directly or indirectly to GS or BS when the relays are actuated in proper combinations. These contacts are also all interconnected directly or indirectly with one or more of the outgoing 11 wires, as at I52. These 11 wires (numbered respectively 1 to 11 with small numbers) represent the groups of wires 28, 40, 44, 48, 56, 64, 65 or 65. It will be noted that 11 wires are provided in each of the last four groups, Whereas in the first four groups only ten need be provided. However, if desired, the eleventh wire may be provided in all groups whereby a spare will be available for future purposes in connection with the first four groups if desired. It will be understood that coded impulses will arrive, for example over one or two of the wires KI to K5, and the manner in which these impulses serve to actuate the relays C to G in'the proper combinations tochoose one of the outgoing wires I52 is indicated by the table in Fig. 4. For example, if K leads I and 2 are energized by impulses, the first outgoing lead will be attached to GS or BS by reason of the operation of relays C and D. The circuits which accomplish this may be readily traced on Fig. 3 without further explanation.

The coded impulses, however, will persist only for a short interval, whereas it is desired to maintain' the GS or BS connection to the chosen outgoing lead I52 for a longer period of time. Therefore each of the relays O to G, is-provided with a holding circuit running from GI, through coil of relay A, to the top relay contacts as at I53, thence through one or more of the relays C to G; to battery and ground. So long as the impulses persist over wires KI to K5, relay A will not be energized by this circuit, since contacts I53 will be grounded through wires KI to K5. However, when the KI to K impulse circuits are broken by the removal of the ground connection at I28 (see Fig. la), then relay A in series with one or two of relays C to G inclusive will be energized by batteries as at I5I. The relay A as thus energized, closes its contact at I54 for applying and maintaining a ground connection to GO. With each set of code register relays it will be noted that GO" runs to the succeeding set of code register relays, (to wire I42 in the case of register relays 63) whereby the next revolution of the distributor may impart its group of coded impulses to the succeeding set of code register relays. Meanwhile, however, relay A upon becoming energized, opens its contact I48 and thus releases relay B so that no more than one group of coded impulses may pass into each set of register relays.

Operation of impulse counters.-When code register relays 41 complete their operation and apply a ground to the GO" connection, such ground as above explained, not only prepares the code register relays 55' for operation, but also provides a GI connection to the impulse counting device 61 by way of connection 68. This will start the operation of the impulse counter 61 for providing ten impulses to insure restoration to normal of all of the indicators which have just previously been selected. When the impulse counter 61 completes its operation, it functions to apply a ground connection to its G0, which ground connection is continued to GI of impulse counter 51 by way of connection wire 10.

Impulse counter 51 will be first described, inasmuch as the operation of impulse counter 61 will thereafter be obvious in view of the similarity of the circuits.

Actuation impulse counter.-Referring to Fig. 6, it will be recalled that these circuits operate to impart a predetermined number of impulses to each of the four wires H to 14 for actuating respectively the hundreds, tens, units and fractions digit indicators. Also, in each of the groups of 11 Wires, 56, 64, 65 and 66, under the control of the code register relays, one wire has been grounded for determining the particular digit to be posted for each decimal place. The operation of the impulse counter begins as above stated when a ground is placed on its GI and immediately after the completion of the restoration of the chosen indicators. Impulse carrying wires I00 and I00a are indicated at the lower part of Fig. 6 and both of the same carry impulses from the impulse generator 98 above referred to. The wire I36 at the bottom of the figure, it will be recalled, comprises the wire which provides a holding circuit for relay I33, this wire being normally grounded through a relay contact I54, this ground not being removed until after this impulse transmitter has imparted the required number of impulses to reset the in-. dicators.

The ground GI completes a circuit from the impulse wire I00, through a stepping magnet I55, in a manner obvious in Fig. 6. The stepping magnet I55,- as will be understood from the conventional showing of the drawing, is mechanically connected to a group of rotary switches I56; I51, I58, I59 and I60, so as to advance the same step-by-step in accordance with the stepping impulses supplied over connection I00. GI also energizes a-relay I6I, the circuit being completed through battery and ground at I62, but-this relay being slow operating, does not pull up until the rotaryswitches I56 to I60have been stepped from their rest position shown. G1 is also connected to bottom contact springs I63, I64, I65-and I66, which are operated respectively by relays I61, I68, I69 and I10, the circuits through said bottom springs then continuing on through the winding of a relay I1I to battery and ground. Accordingly relay I1I is at once operated so that it opens its contact at I12, which contact controls the circuit of a relay I13 and prevents relay I13 from operating until all four of the relays I61 to I10 have pulled up and opened their bottom contacts I63 and I66.

The rotary switch I56 having stepped one step, grounds its wiper, inasmuch as all of its contacts I14 exceptv the first, are grounded as indicated. This completes a circuit from these grounded contacts through the windings of relays I15- and I16 to battery and ground at I11, thus actuating these relays. The relay I15 in actuating, closes its contacts I18, thus replacing a ground on the stepping magnet I55, the GI ground having been just previously removed by the delayed operation of relay I6I controlling a contact I19. Relay I16 in actuating, closes its contacts-I80, I8I, I82 and I83, which connects the impulse wire I00a to the four upper contact springs I84, I85, I86 and I81 respectively of the relays I10, I61, I68 and I69. From these upper contacts, impulses may thus be imparted respectively tothe four outgoing bus wires 14, ll, 12 and 13. Relay I16 also closes its lowermost contact at I88, placing a ground in position to hold up any of the relays I61, to I10, through their'contact springs I88 to I92 respectively.

With each impulse arriving over the impulse wire I00, the stepping magnet I55 will be operated, thus advancing step-by-step the wipers on the switch banks I51 to I60. Eventually, however, each of these wipers will arrive at a contact which has been grounded by the action of the impulse storage relays 55, 6|, 62 and 63 as above explained, such grounded contacts corresponding respectively to the digits of the quotation tobe set up. Assuming that the third point designated as I93 on the switch I51 has been grounded, as the wiper for this switch comesto such point, a circuit is completed from this ground connection through the wiper and connection wire I94, thence through winding of relay I61 to battery and ground. Relay I61 in pulling up, opens its top contact I85, cutting off impulses to outgoing bus H, but without interfering with the further application of impulse wire I00a to the other busses providing the relays I68, I69 and I10 have not yet been actuated. Relay I 61 in actuating also places a holding ground on its own winding through its contact I89 and the contact I88 as above explained. Relay I61 also closes a bottom make spring contact I95 which in part prepares a grounded circuit which will eventually operate relay I13.

Each of the rotary switches I58, I59 and I60 in conjunction with their relays I68, I69 and I10 operates in a manner similar to the operation of switch I 51 and as the last of these relays operates, all of the contacts I63, I64, I65 and I66 will become opened, thus releasing relay I1! and permitting its contact I12 to close. At the same time all of the bottom make spring contacts I95 of the re1ays|61 to I10 will have become closed, thus completing a ground connection running from I96, through the four bottom make spring switches as at I95, and through contacts I12 to relay I13 to battery and ground.

Relay I13 thereupon opens its break contact at I91 and thus removes impulse wire I from the stepping magnet I55. However, contacts I91 in moving to their make position, apply a buzzer contact circuit to the stepping magnet through contacts I98. The stepping magnet is thereupon provided with impulses in rapid succession through'the buzzer contact from the batteryand ground I99 and accordingly the rotary switches will be quickly advanced to normal position, at which the ground will be disconnected from the wiper I56 for stopping the operation of thestepping magnet and for releasing relays I15 and i116, the latter in turn releasing the holding circuits of relays I61 to I10. Relay I13 will then become released and relay I1I may then be again energized for a short interval.

The operation of relay I13, in opening its contact I54, opens the release bus circuit I36, which in turn permits relay I33 to drop out for removing the battery supply and ground supply to the several groups of impulse storage relays, which in turn also results in the removal of the ground connections to GI in each of the impulse counters at 51 and 61. With this ground removal, relay I6I drops out, as does also relay I1I, completing the restoration of the circuits to normal condition.

Restoration impulse counter.--The operation of the impulse counter of Fig. for delivering the ten indicator restoration impulses will be readily understood from the above description. Corresponding parts have been identified by the same numerals accompanied by prime marks. However, it will be noted that as this impulse counter always provides ten impulses over the busses 69, only one control switch as at I51 is required. The tenth point as indicated at 200 is permanently grounded on this control switch, so that it will be permitted to always control the transmission of ten impulses whenever it is operated, Of course in lieu of the four controlling relays I61 to I10, a single controlling relay as at I61 may be provided. Also, a contact I54 on relay I13 is arranged to make instead of break when this relay is energized. This is for the reason that with this impulse counter, it is desired to have the same perform the final operation of imparting a grounded connection to GO for initiating the operation of impulse counter 51. Also, in order that the relay I13 after once being energized, may be kept pulled up as long as a ground connection is continued on GI, an

, additional contact 20I is provided on relay I13,

whereby when this relay is actuated, a holding circuit is provided as indicated on the drawings from G1, through the coil of relay I13, to battery andground. This relay is thus kept pulled up, regardless of the dropping out of relay I1I. Furthermore, in lieu of the single contact I85, four contacts I84 are here provided in order that the four buss'es 69 may be kept separate back to the contacts I80, IBI, I82 and I83 respectively. Thereby, although the impulse counter of Fig. 5 imparts the same impulses to all four of the wires 69, these wires will not be short circuited together after relay I16 releases.

It will be noted that each of the rotary switches in both of the above described impulse counters may be of the type as schematically indicated, which have interconnected duplicate sets of contacts and duplicate wiper arms, so that successive operations of the switch may be had without necessitating a complete revolution thereof. It

will be understood that other arrangements of 7 various known types might be provided for locally counting the necessary impulses.

' Operation of wipe-out connections.If it is desired to operate the wipe-out relay 31, the impulse, storage relays 21 are operated so as to apply a battery to one of the connection wires 28 designated as 202. The wipe-out relay 31 will thereupon be energized and'its four contacts as at203 will be closed for applying current from a battery indicated at 204 to all four of the wires 28 running to the open, high, low and last relays 29 to 32. Therefore the open, high, low and last indicators for the particular stock to be chosen will all be placed in operative condition. Relay 31 also has a make and break contact at 205, the break contact of which is interposed in the circuit of wire 10 by way of a return wire 10'. Thus, when relay 3! is not energized, wires 10 and 10 will provide a continuous path from GO of impulse counter 61 to GI of impulse counter 51. However, when relay 31 is energized, and its lower contact spring moves to its make position, wire 10 will be disconnected from wire 10 and instead will be connected to the coil of a relay 206, thence to battery and ground 201. Relay 206 thereupon opens its contacts at 208 and thus breaks the circuit of release bus I36, causing release relay I33 to drop out. The wipe-out relay thus not only disconnects impulse counter 51 and prevents its operation, but also opens the release bus to restore the selector circuits to normal. Also if desired, the wipe-out relay may be utilized to operate the relay 24 to shift the next selecting impulses to the other portion of the system. This may be accomplished by connection wire 68' running'from wire 68 (see Fig. 1b) to a make contact 205 under the control of relay 31, thence the wire 68 runs to wire I42 (see Fig. 1a) Therefore when connection 58 becomes grounded and the wipe-out relay 3'! is also energized, a ground connection will be applied to wire I42 resulting in the actuation of relay 24, which thereupon operates its associated circuits in the same manner as above described.

It will be understood that the relays 34, 35 and 36 operate to perform their above described functions by reason of the control of their contacts in a manner similar to the control of contacts 203 by the relay 31.

Indicator circuit connections-It will be noted that the terminals as at 208 of all of the indicaing the ground 2I0 to actuation bus 2| 4. This bus provides a ground return path for the actuation impulses supplied by the impulse counter 51.

In Fig. 1d as above stated, indicator connections are shown for the indicators for posting the quotations of one stock; the magnets for operating the indicator units are schematically indicated as at 2I5. Each indicator unit is provided with a cam operated switch or commutator as schematically indicated at 2l6, this commutator being arranged to normally connect the magnet winding through contacts or segments as at 2l'l, to the restoration bus 209. However, when the indicator arrives at normal or blank position, the commutator or cam switches the magnet winding from contacts 2|! to connect the same to contacts as at 2l8, whereby the return magnet circuits run to the actuation bus 214. Relatively quick detachable connections are schematically indicated as at 2!!! for the circuits of each of the indicators, whereby the indicators may be quickly removed or replaced in respect to the brokers board frame structure. It will be observed that a lead wire as at 220 from each indicator magnet is connected by way of connections as at 22l to contacts as at 222 respectively on the multicontact relay 85. 85 is energized, these connections are continued to terminals as at 223 which are arranged to be alternatively brought into engagement with either terminals 224 or 225, the latter terminals being associated respectively with the two sets of operating busses for the two parts of the system. It will be understood that the busses indicated are prolonged to provide for additional stock indicators of the same group. Also, the same busses may be branched as schematically indicated at 226 to extend to other adjacent groups of indicators.

Fig. 7 shows one type of indicator unit that may be used in connection with the system disclosed. In this figure the indicator drum is shown at 230 and is supported on the shaft 23! mounted in the indicator frame 232. Also secured on the shaft 23! is a ratchet wheel 233 which is operated by a fork 234 suitably pivoted in the frame, and having integrally formed thereon or connected thereto an armature 235 coopcrating with the operating magnet 2 I 5 before referred to. As the magnet 2l5 is energized the pawl is rocked into the position shown in Fig. 7, and upon release is rocked clockwise by the spring 238. As stated before, each unit may be provided with slip connections which are indicated in Fig. 7 at 223', 209 and 2M. The slip connection 223 makes an electrical connection with the contacts 223, Fig. 1d, which through the contacts 224 or 225 may be connected to the busses T5 to F9 or 83 to 84. The slip connection 269" is adapt ed to be connected to the restoration ground 209 and the slip connection 2M is adapted to be connected to the actuation ground 2M;

As shown in Fig. 7, impulses coming in over the slip connection 223' will pass over the winding magnet 2l5 and thence to the contact member 231 and from there to ground over the contact member 238 or 239 and the slip connections 209. and 2 l4, respectively. The indicator is shown in Fig. 7 in the position into which it is moved by the last effective restoration impulse. In this position arm 24!] on the indicator shaft 231 has opened the restoration circuit made through the contact members 23! and 238, and therefore has prevented any surplus impulses over the restorationcircuit from operating the indicator beyond the normal position. The-arm 240 at the same When the relay time has moved the contact member 231 into' contact with thememb'er 239 thereby closing the actuating circuit through the magnet 2l5 to cause the indicators to be moved forward during setting-up operations.

If the terminals 223 are brought into engagement with the terminals 224, then the connected indicators for this particular stock will be operated' from the' selector apparatus shown in Fig. 1, whereas if the terminals 223 were brought into engagement with the terminals 225, then the duplicate selector apparatus would control the operation of these particular indicators. The plugs- 50, etc. corresponding to the stocks now connected to the busses of the duplicate selector mechanism will be removed from the grid associated with the mechanism of Fig. 1 and then connected to the grid associated with the duplicate selector mechanism. In the transmission of the impulses from the central point, groups of impulses for operating indicators connected to terminals as at 224 are transmitted alternately with groups of impulses for stocks, the indicators for which are connected to terminals such as 225. As above stated, for more detailed description of the circuits shown in Fig. 1d, reference may be had tomy copending application above mentioned relating to the indicator units and associated parts.

It may be noted that the system in its preferred example as' disclosed, is intended to operate the duplicate selecting and indicating means alternately and it is unnecessary to operate successively the indicators of the same group or portion of the system. It may also be noted that it is unnecessary to apportion the listed stocks or items evenly between the two parts of the system. In fact with applicants present commercial system now in use with the New York Stock Exchange quotations, the indicators are divided into two groups, the stocks represented by abbreviations of the first portion of the alphabet being in one group, the last portion of the alphabet being allotted to the other group. The allocation of indicators to these groups may vary from time to time, as for example when stocks represented by abbreviations of the first part of the alphabet are more active or where more numerous additions may be made to the listings represented by abbreviations of one or the other of the groups. To" accommodate these varying conditions, applicant provides means whereby his multicontact relays (see Fig. 1d) may have their terminals connected alternatively with the control busses of either portion of the system (through contact terminals 224 or through contact terminals 225). In this way the system may be so arranged that substantially'the same number of quotations are actually transmitted during the day over the two duplicate portions of the system. Thereforethe two portions of the system may conveniently be used alternately or if the system is divided into a greater number of portions than two, the plurality of sets of selecting and indicating apparatus may be used alternately, i. e., in rotation. Of course if the service is not quite evenly balanced between the two portions of the system, then a few dummy or blank quotations may be sent over one or the other of the portions of the system from time to time so that the alternate and prompt operation may still be maintained. That is, it will be apparent for example, that selecting impulses'may be sent over one portion of the system to select indicator terminals'to which no indicator is connected, or any desired indicator or group of indicators might be reset to the previous quotation in order to preserve the alternate operation of the portions of the system.

It will be understood that while the above described apparatus is particularly adaptable for operating indicators such as disclosed in my said copending application, nevertheless other well known forms of indicator units might be satisfactorily substituted under various conditions.

The various relays such as of the local impulse generating devices and the releasing relays, etc., may be adjusted by trial to operate within such time limits as will most economically utilize the line wire or wires While at the same time assuring dependability of operation.

It will be understood that many features of the invention are applicable to transmitting arrangements other than the multiplex distributor as above described. For example, the circuits are adaptable for use in connection with analogous forms of multiplex radio transmitting circuits, or if desired, particularly for short distance work, the distributor may be replaced by direct line wires corresponding to the various distributor segments.

While the invention has been described in detail with respect to a certain preferred example thereof which gives satisfactory results, it will be understood by those skilled in the art, after understanding the invention, that various changes and modifications may be made without departing from the spirit and scope of the invention, and it is intended therefore, in the appended claims to cover all such changes and modifications.

What is claimed as new and is desired to be secured by Letters Patent is:

1. In a signalling system, a transmitting distributor operative in cycles, each cycle comprising the transmission of a complete message, a receiving distributor operative in corresponding cycles, means for operating said distributors in their respective cycles, a plurality of receiving mechanisms respectively operative by the cycles of operation of said distributors for posting a complete message, an electrical circuit connecting said distributors over which intelligence signals are transmitted, and means operated over said circuit to associate a certain cycle of said transmitting distributor with a selected cycle of the receiving distributor and thereby with a selected one of said receiving mechanisms.

2. In a telegraph system, a receiving distributor, a selecting mechanism, a plurality of receiving devices selectable thereby for subsequent operation in response to signals received by said distributor, and means associated with said distributor to cause said selecting mechanism to respond variously to select difierent ones of said receiving devices in response to the same code signals occurring in successive revolutions.

3. In combination, a multiplex telegraph system, a plurality of message display devices each associable with one of the channels of the system for displaying a message and each capable of variable operation, and means controllable over said system for operatively associating each of said display devices with one of the channels of said system with which it is at the time associated in accordance with a predetermined arrangement.

4. In a synchronous multiplex telegraph system, a plurality of receiving apparatuses each for receiving a message and each associable with one of the channels of the multiplex system for receiving a message, transmitting apparatus adapted to be operated over a single channel of the multiplex system, and means operated over said channel to establish a predetermined phase relation between said transmitting and receiving apparatuses.

5. In combination, a multiplex telegraph system, a set of independent receiving devices each adapted to receive a message and respectively associated with individual channels of said system, a single transmitter including circuit connections for establishing signalling conditions with each of said channels, means to control all of said devices from said single transmitter, and means operated over a channel of the multiplex system to establish a predetermined phase relation between said single transmitter and said independent receiving devices.

6. Automatic brokers board apparatus comprising a plurality of indicators for posting various quotations such as open, high, low, last and "yesterdays closing of numerous stocks or other items, means for selectively operating the indicators for the open, high, low, last and yesterdays closing of any desired stock, and means for concurrently restoring the open, high, low and last indicators of any desired stock.

7. Automatic brokers board apparatus comprising a plurality of indicators for posting quotations such as the open, high, low and last of numerous stocks or other items, means for operating the indicators for the open, high, low and last of any desired stock selectively singly or in unison.

8. In a receiving mechanism comprising a plurality of groups of indicators, a plurality of sets of storage devices for effectively storing impulses for subsequently controlling the selection and operation of any group of indicators, means responsive to the stored impulses in said storage devices for selecting and operating any group of indicators, and switch connections whereby any group of indicators may be selected and operated from either of said sets of storage devices.

9. A stock quotation board comprising a plurality of indicators, means for receiving impulses to select and operate said indicators, a set of storage devices for storing received impulses corresponding to a complete quotation, a second set of storage devices for storing received impulses corresponding to a complete quotation, means for applying said received impulses alternately to said sets of storage devices, and means for selecting and operating said indicators from either set of storage devices.

10. The combination of a plurality of indicator assemblies, each assembly comprising a plurality of electromagnetically operated indicators, groups of storage relays, means controlled by said storage relay groups for selecting any one of said assemblies, impulsing means for transmitting impulses to the individual indicators of the selected assembly to restore the same, and a no reset group of storage relays for determining how many of the individual indicators of the selected assembly receive impulses from said impulsing means.

11. In a signaling system, a source of signals, a distributor having receiving segments corresponding to a plurality of groups of character code signals, two sets of storage elements associated with said distributor, means for applying signals received on said receiving segments alternately to said sets of storage elements during successive cycles of operation of the distributor and retransmitting means associated with each set of storage elements.

12. In a signaling system, a source of signals, a distributor having receiving segments corresponding to a plurality of character code groups of signals, two sets of storage elements associated with said distributor, means for applying signals received on said receiving segments alternately to said sets of storage elements during successive cycles of operation of the distributor, and separate retransmitting means associated with each set of storage elements arranged to retransmit said signals.

13. In a system of the character described, the combination of a receiving distributor, an indicator board comprising two sections, each of which includes a plurality of groups of indicators, means for selecting and operating any group of indicators on either of said boards, and means under the control of the distributor for controlling said selecting and operating means to select and operate the groups of indicators on said boards alternately.

14. In a system of the character described, the combination of a receiving distributor, an indicator board having the stocks thereof divided into two groups, each of which stock groups includes a plurality of groups of indicators, means for selecting and operating any group of indicators in either of said stock groups, and means under the control of the distributor for controlling said selecting and operating means to select and operate the groups of indicators in said two stock groups alternately.

15. Automatic posting board apparatus comprising a plurality of indicators for posting the varying quotations of stocks or other items, means controlled from a distance for selecting for operation any desired indicators to be reset, local means for restoring the selected indicators after selection thereof, to a normal position, and means for receiving from a distance and effectively storing, during said restoration operation, groups of coded impulses representative of the new quotation or quotations to be posted by the chosen indicators and for rendering said coded impulses effective to operate the indicators after r the same have been restored to normal settings.

16. Automatic posting board apparatus comprising a plurality of electromagnetic indicating devices each movable to exhibit a plurality of digits, a plurality of successively operable selecting devices for selecting indicators which it is desired to reset, means for controlling said selecting devices to cause the same to operate successively over a single group of impulse channels, several of said selecting devices including means for bringing said impulse channels into operating relationship with the succeeding selecting device, and means controlled by the last selecting device to be operated, for initiating the movement of the selected indicator or indicators.

1'7. Automatic posting board apparatus comprising a plurality of electromagnetic indicating devices each movable to exhibit a plurality of digits, a plurality of successively operable selecting devices for selecting indicators which it is desired to reset, said selecting devices being controllable successively over a single group of impulse channels, several of said selecting devices including means for bringing said impulse channels into operating relationship with the succeeding selecting device, and means controlled by the last selecting device to be operated, for causing automatic restoration to normal of the indicator or indicators selected.

18. Automatic posting board apparatus comprising a plurality of indicating devices controllable by a distant transmitter over a small number of impulse channels, a plurality of selecting devices for choosing any indicators desired to be reset, connections for associating said impulse channels successively with said selecting devices, connections controllable by the last selecting devices to be operated, for causing the selected indicator or indicators to be restored to a normal setting, and circuits completed upon such restoration for resetting the restored indicators to post a desired new quotation under the control of impulses received over said impulse channels.

19. Means for selectively controlling a large number of electromagnetic devices comprising multi-stage remotely controlled selecting means for choosing as between a plurality of connections, at least three groups of said connections being provided, each of said groups correspond ing to one selecting stage, a plurality of relays having normally open contacts, each of the connections of one of said groups being associated with one or more of said electromagnetic devices through said normally open relay contacts, each of said connections of the others of said groups being associated with windings of one or more of said relays controlling said relay contacts, whereby the selection and energization of one of the connections of the first of said groups, together with one of said connections of the other groups, will result in the energization of the circuit of one of said electromagnetic devices, the circuit of such selected device being closed by the operation of one of said relays.

20. Selecting apparatus comprising an arrangement of two groups of conductors, each conductor of each group being arranged to cooperate with any one of the conductors of the other group when energized to make a particular selection, one of said groups comprising a much larger plurality than the other, means for choosing and energizing one conductor of each of said groups, and electromagnetic means connected with the conductors of the larger plurality whereby the chosen conductor of the larger plurality electromagnetically controls a circuit including the chosen conductor of the smaller plurality.

21. Selecting apparatus comprising an arrangement of two groups of conductors, each conductor of each group being arranged to cooperate with any one of the conductors of the other group when energized to make a particular selection, one of said groups comprising a larger plurality than the other, means for choosing and energizing one conductor of each of said groups, electromagnetic means connected with the conductors of the larger plurality whereby the chosen conductor of the larger plurality electromagnetically controls a circuit including the chosen conductor of the smaller plurality, a plurality of groups of indicating devices, control busses common to said groups, and means operated by said last named circuit for connecting a plurality of said indicating devices to said control busses.

22. Selecting apparatus comprising a plurality of selecting switches, an arrangement of two groups of conductors, each conductor of each group being arranged to cooperate with any one of the conductors of the other group when energized to make a particular selection, one of said switches being connected to select a conductor of one of said groups, said other group of conductors being divided into a plurality of subgroups, a plurality of multiconta-ct relays, each of said sub-groups being under the control of one of said multicontact relays, another of said switches being connected to select any one of said relays and to thereby prepare a circuit through a contact of the chosen relay to a selected conductor of the sub-group controlled by the chosen relay.

23. Selecting apparatus comprising an arrangement of two groups of conductors, each conductor of each group being arranged to cooperate with any one of the conductors of the other group when energized to make a particular selection, means for choosing and energizing any one conductor in each of said groups, electromagnetic means connected with the conductors of one of said groups whereby the chosen conductor of such group electromagnetically controls a circuit including the chosen conductor of the other group, a plurality of groups of indicating devices, control busses common to said groups, and means operated by said last named circuit for connecting a plurality of said indicating devices to said control busses.

24. In a stock quotation system of the character described, a receiver comprising a single receiving distributor, a stock quotation board comprising two sections, each section including a plurality of groups of electromagnetically operated indicators, means operable responsive to signals received over said distributor for selecting any group of indicators on either of said boards for operation, means associated with each board section and responsive to impulses received for storing signals corresponding to the price to be set up on the selected indicators, means for directing said impulses into the price storage means associated with the board section including the chosen indicators, and impulse controlling means associated with each of said price storage means for operating the selected indicators under control of said of the price storage means whereby the selected indicators on either board may be operated while selection and price information is stored for the selection and operation of indicators on the other board section.

25. In a stock quotation system of the character described, a receiver comprising a single receiving distributor, a stock quotation board having the stocks thereof divided into two groups, each such stock group comprising a plurality of groups of electromagnetically operated indicators, means operable responsive to signals received over said distributor for selecting any group of indicators in either of said stock groups for operation, means associated with each stock group and responsive to impulses received for storing signals corresponding to the price to be set up on the selected indicators, means for directing said impulses into the price storage means associated with the stock group including the chosen indicators, and impulse controlling means associated with each of said price storage means for operating the selected indicators under control of said of the price storage means whereby the selected indicators in either stock group may be operated while selection and price information is stored for the selection and operation of indicators in the other stock group.

26. In a receiving system for the reception of code signal messages divided into groups for communication over separate channels, each message being divided into item selection and item price portions, a telegraph circuit over which said messages are received; a storage device operatively associated with said telegraph circuit for storing the signals or" one portion of each message, and a storage device operatively associated with said telegraph circuit for storing the signals relating to the other portion thereof; an item board having a plurality of indicators for each item, each indicator adapted to be stepped to indicating position by electrical impulses; means for selecting certain indicators of one item by signals stored in one storage device; a plurality of translating units, one for each channel, each unit adapted to transmit impulses to the selected indicators in accordance with the item price portion of the message; means for selecting the translating unit of the channel to which the item being quoted is assigned; and means operated by said translating unit for pulsing the selected indicators to selected new positions in accordance with the received code signals.

27. In a receiving system for the reception of quotation code signals for selecting an item and the price thereof, said items being divided into groups for transmission over separate channels, a telegraph circuit over which said signals are received; a storage device operatively associated with said telegraph circuit for storing the signals relating to the item selection, and a storage device operatively associated with said telegraph circuit for storing the signals relating to the price; an item board having a plurality of indicators for each item, each indicator adapted to be stepped to indicating position by electrical impulses; means for selecting certain indicators of one item by signals stored in one of said storage devices; a plurality of translating units, one for each channel, each unit adapted to transmit impulses to the selected indicators in accordance with the price signals received; means for selecting the translating unit of the channel to which the item being quoted is assigned; and means operated by said translating unit for pulsing the selected indicators to blank positions and thereafter pulsing them to selected new positions in accordance with the received code signals.

MERTON L. HASELTON.

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