US1872126A

US1872126A - Quotation board or the like apparatus

Info

Publication number: US1872126A
Application number: US246474A
Authority: US
Inventors: Robert L Daine; Guye Rene
Original assignee: Teleregister Corp
Current assignee: Teleregister Corp
Priority date: 1928-01-13
Filing date: 1928-01-13
Publication date: 1932-08-16
Anticipated expiration: 1949-08-16

Description

15, 1932- R. DVAINE ET AL 1,872,126

QUOTATION BOARD OR THE LIKE APPARATUS Filed Jan. 15, 1928 6 Sheets-Sheet 1 avwuwozs Robert LDm'Iw Re/w' Gay ggn thcir flblromm d Aug. 16, 1932.

R. L. DAINE ET AL QUOTATION BOARD OR THE LIKE APPARATUS Filed Jan. 15'. 1928 6 Sheets-Sheet 2 gllllilvl. llllli I 5 www lllll r III xlln ul avwenbow Robert L. Min/0 Augw 16, 1932- R. L. DAINE ET AL 6 QUOTATION BOARD OR THE LIKE APPARATUS Filed Jan. 15, 1928 s Sheets- Sfieet s Hobart ZLDa/z'mq awh ir alum- 5;?

1932- R. L. DAlNE ET AL QUOTATION BOARD OR THE LIKE APPARATUS Filed Jan. 13, 1928 6 Sheets-Sheet 4 JNl {ENTORS Robert L.Da/m/a.

III] Ill 51 a nun Home 6 e' Aug. 16, 1932- R. L. DAINE ET AL 1,872,126

QUOTATION BOARD OR THE LIKE APPARATUS Filed Jan. 13, 1928 e Sheets-Sheet 5 DDDD DDDD DDDD DDDD DEIDD DDDD DDDD DDDD DDDD DDDD DDD DDDD DDDD DUE! DDDD UDDD DDEI D DDDD DDDD DDEID D DDDD DDDD DDDD D UDEID DD DD DDDIJ avwemtow Aug. 16, 19 R. DAINE ET AL QUOTATION BOARD OR THE LIKE APPARATUS 6 Sheets-Sheet 6 Filed Jan. l3, 1928 AM. AG.

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OPEN EM LOW INVENTORS Roberllflaine BY Berze'Gaqye' (Ma/Id, Guava; M

ATTORNEYS Patented Aug. 16, 1932 UNITED STATES PATENT? OFFICE ROBERT L. DAINE, OF NEWYORK, N. Y., AND RENE GUYE, OF NEUCHATEL, SWITZER- IiA-N-D, ASSIGNORS, BY" DIRECT AND MESNE ASSIGNMENTS,TO THE TELEREGISTER CORPORATION; OF NEW YORK, N. Y., A CORPORATIONLOF DELAWARE QUOTATION BOARD OR" THE LIKE APPARATUS Application filed January 1 3, 1928. Serial No; 246,474.

This invention relates to quotation indicating boards and the like apparatus such, for example, as brokers stock or commodity quotation boards, the invention being particu larly'applicable to automatic electrically operated equipment of this class.

The objects of this invention include the provision of apparatus and equipment of the above-indicated class which will'be adaptable with a wide degree of flexibility to various fication and. illustrate, merely by way of eX- ample, several embodiments of'the invention.

The invention consists in such novel features, arrangements and combinations of parts as may be shown and described in connection with the apparatus herein disclosed by way of example only and. as illustrative of preferred arrangements.

In the drawings, Fig. 1 is a front view, partlybroken away, showing an assembled group of demountable sections comprising a brokers stock. quotation board. illustrating .111 embodiment of the invention;

Fig. 2 is a vertical sectional view,.partly broken away, of. a boardsuch as shown in Fig. 1';

Fig. 3 is a plan view showing ademountable group of indicating units such as may be comprised: in a board as of Fig.1;

Fig. 4 is an end elevational view of the devices and the parts shown: in Fig. 3';

Fig. 5- is a plan view, partly in section, showing a detachable plug; which may be used in connection with leading in. wires toa board as ofF-ig. 1; s

Fig. 6 is a front elevational view. of an illdicating unit of the type shown in Figs. 3 and 4;

Fig. 7 is a front elevational view, partly broken away and in" section, showing one manner of constructing the demountable board sections Fig. 8 is a" sectional View taken substantially along the line8-8 of Fig. 7;

Fig. 9 is a front elevational view, partly broken away and in section, showing an-' other manner of constructingthe demountable board section; I

*igs. 10 and 11, respectively, are sectional views taken substantially along the line 10-10 and 1111 ofFig: 9;. Fig. 12 is a horizontal sectional view through amodified formof detachable indicator;

Fig. 13 is a rear View partly broken away' showing an assembledbrokers board utilizing indicators as of Fig. 12;-

Fig. 14 is avertical seet-ionthrough amodi lied form of container;

Fig. 1-5 is a rear view similar to Fig; 13 showing the use of containers such; asshown in Fig. 14;

Fig. 16 shows theface ofabrokers board constructed according to either of the modifications-as of Fig. 1-3 or Fig. 15; Fig. 17 shows a brokers board partly in longitudi-r' nal'section on three different planes illustrating the construction of the containers shown in Figs. 12 and 13 and their relation to the frame of the board; and

Fig. 18 is. a View similar to that shown in; Fig. 17 showing the containers illustrated in Figs. 14 and 15.

Referring to Fig. 1, it will be noted that a. brokers board is provided to exhibit quotations in substantially a conventional arrangement. The board here shown may comprise a plurality of sections as, for example, at 20, 21:, 22 and 2.3, which are demounta'ble with respect to each other. These sections may be arranged in a plurality of side-by sid'etiers" resting upon a suitable supporting frame, as at 24. The sections of each tier may rest one upon another. A typical board might be a made up of sections each having indicators I for exhibiting the fluctuating quotations of ten stocks. Five of such sections may be conveniently arranged one on top of another'to form a tier, and then two OfSUClLiZlGIS side by side would have a capacity for quotingonev hundred stocks or other items.

Along the top edge of each section, space may be provided, as at 25, for painting or otherwise applying the conventional abbreviations indicating which stock or other item is being quoted by the indicators immediately below in the same section. At the left-hand side of the board a suitable section of sheet material, as at 26, may be secured upon which may be painted or otherwise indicated the conventional indicia such as to indicate the ()pen, High, Low and Last quotations of any particular item as well as corresponding indicia denoting yesterdays High, Low and Closing quotations. Since the numbers exhibiting the previous days quotations are ordinarily changed but once each day, such numbers may conveniently be of the ordinary manually changeable type comprising interchangeable slips of cardboard or other material bearing numbers, such slips being retained upon the board in a conventional manner in slots as, for eXampie,

indicated at 27 in Fig. 2.

On the other hand, for the fluctuating quotations automatic changeable indicating units may be provided as shown in Figs. 3, 4 and 6, and the same will be hereinafter described in detail. Where the board is to be used for New York Stock Market quotations, each quotation, such for example as the opening quotation of a particular'stock, ordinarily may require the use of four digit indicators, respectively, for the hundreds, tens, units and fraction values, and therefore where four quotations, namely, Open, High, Low and Last, are'to be simultaneously exhibited, a total of sixteen digit indicating units must be provided. According to the arrangement shown in Fig. 3, such digit indicating units may be conveniently arranged in groups of four, each group comprising the units necessary for one quotation of one stock, and in the embodiment here shown, each of such groups of four is arranged to be quickly demounted in respect to the larger demountable sections. Furthermore, as will be here'- lnafter further explained, individual indicator units of each of such groups of four may also be readily demounted. The demountable features of the sections, groups of units, and units include not only the features of the mechanical supporting structure but the electrical connections, in each instance may, if desired, be simultaneously demounted substantially without interference with the electrical connections to adjacent sections or units, as the case may be.

Such demountability in respect to themechanical and electrical features not only makes it possible to quickly inspect, repair or replace any section or unit, but such fea- Lures are of particular advantage in connec-- tion with an automatic electrically operated brokers board for numerous other reasons. If the quotations of a large number of stocks ware exhibited with sixteen digit indicating units used for each stock, the necessary multitude of units may, according to this invention, be standardized and made interchangeable. Furthermore, the sections being separable may be arranged to best suit the requirements of the broker and so as to best fit into the space available at his office. For example, a number of tiers greater or smaller than two may be arranged, or if the brokers space is relatively narrow, a large number of sections may be placed one on top of another. Also, if necessary, the sections of one tier may be placed at an angle to those of another tier to best fit the space available. As the number of stocks which the broker desires to quote is increased or reduced, the corresponding required number of sections may be in-- creased or decreased without interfering with the more permanent sections, hence no wasted or unused sections or spaces are necessary on the board to 'usure the desired capacity for future purposes. Since the indicating units and groups thereof may, according to this invention, be standardized and may be quickly interchanged even by an inexperienced person, only a small number of spares need be provided for replacements or additions in emergencies.

With the form of demoun'mble construction hereinafter described, the electrical connections to the board may be made flexible and quickly detachable, and-this, together with the demountable form of units, makes it possiblefor the broker to exhibit the stocks of connection wires to other sections and units. llso, since the units are interchangeable, those which exhibit the morerapidly fluctuating stocks, if desired, may be occasionally interchanged with indicating units of inactive stocks, whereby there willbe less tendency for particular units to become worn out before others.

The quotation board here described may have its quotation indicating units interchangeably connected to selecting apparatus, as for example in the manner disclosed in the cop nding United States patent application of Robert L. Daine, filed September 17, 1927, Serial No. 220,244. entitled Methods and apparatus for indicating quotations or other items. Patent No. 1,658,516 of February 7 1928. actuating circuits with which such a board may be operated may be of various forms. such for example as that described and claimed in the copending application of The selecting apparatus and the core of the magnet 31. drums 29 maybe secured 1n respect to a teeth of the star wheel.

FrancoisiFavarger, filed January 16, 1923, Serial No. 613,012, entitled Electricalimpulse transmitting devices, and the pending patent application in Switzerland of F abrique *D Appareils 'Electriques F avarger A., of N euenburg, Switzerland, No. 47,911, filed April 5, 1927 upon which the copending United States application of Frischknecht et'al Serial No. 267,680, filed April 5, 1928, is based.

Referring to Figs. 3, 4 and 6,the details of construction of the indicator units here shown will now be further/described.

The digits to be exhibited may be ary ranged as at 28, around the periphery of r tatable drum members as 29, which may be enclosedwithin frame members as at 30. Within each of the frame members an operating magnet as at 31 may be mounted to cooperate with an armature member 32, pivotally mounted as at 33; a leaf spring 34 en gaging a suitable stop member as at 35 may be secured to the armature 32-t0 normally retain the same in a position spaced from Each of the star Wheel as at 36, which in turn is designed'to engage an operatingfork or'pawl member 37, secured to'and operated-by'the armature32. The star wheel 36 and operating fork 37 are preferably ofthe particular shapes and relative dimensions substan tially'as shown-in Fig. '4, and the same are designed to cooperate in a manner such that with each .movement of the armature and the fork member 37, the star wheel;36 together with the drum member 29 is advanced always in the same direction through an angle subtended by the space between two The star wheel preferablyhas a number of teeth equal to the number of digits or digit spaces to be exhibited at the periphery of the drum and in the example shown eleven teeth are used,

providing for ten digits and a blank space. Accordingly, whenever an electrical impulse is transmitted through the magnet the drum is advanced through such-an angleas to re-' move fromexhibition one digit,and to ex- ;jjhibit the next succeeding digit or space.

For normal operation of the unit, current ma be su lied to one windin of the magnet througha pair of terminals, as. for ex: ample, at 38 and 39. However, when a quoation is to be changed, it may be found to be expedient to first restore the indicating unitor a group of such units to a zero position or position of rest. For this operation a separate circuit including a second winding may be applied to the magnet 31,

which circuit ,may either be brought in through two independent terminals, or as in the form illustrated 1nthe drawlngs, one

additional terminal '40 may.be-used,;in conjunction with one of the-terminals 38-or39 acting asa return conductor commontoboth circuits.--

The terminal 40- may be connected 5 to the winding of the magnet by way of a circuit breaker, comprising a pair of cooperating H spring contacts 41. Toactuatethe-members 41 a contact operating'member '42; may be pivotedto the frame as at 43' and formed with an extension 44 for engaging anin-su' lating stud 45 which acts to separate the I contacts at 41 whenever the member- 42 engages the'same. The member'42 may also be provided with a cam portion46, normally resting against a stop pin 47 affixed to the main in closed circuit position."

With. the above described constructional series of impulses may be sent throughthe circuit of terminals 38-and39 to rotate'the drum to exhibit the desired digit. Therea'fter, when-it is desired to-change 'theexhibit a series of, say, 11 impulses may be appli e' to the circuit of terminal '40 and'such im-'* pulses will be effective in operating themag net and turning'thedrum-with a'step' by-ste'p movement until the drum arrives at the'zero position, whereupon the contacts 41 will separated and the circuit broken through the:

magnet 31 rendering'the circuit of terminal 40'inelfect1ve tofurther actuate the'drum unt l after the samehas'been resetas 'deslred' by impulses through the circuit-of terminals 38 and 39. The details ofthis indicator and the electrical circuits for controlling the same, except for the features "hereinafter" claimed, form no part of the present invention but are described andclaimed inthe copendin g plication of Frischknecht et' a1. Serial 258,219,fi1e d1\4arch1,1928.

As shown inFig. 3, the frame portio ns,- or

frame, but such cam portion is also arranged casi'ngs 3O of the group of 4 indicating units a may be arranged side by-side and attached? by suitable screws, etc, passing through lugs as at49, for aflixing the units to amounting plate'as at 50 (see Fig. 9). The .group'of 4 indicating units when thus assembled :will: be readlly handled as a single quotati'onunit;

In order that such unit may be quickly insert-- ed or removed froma section of the board without particular --attention being paidto the'contacts, a quick-detachable contact are,

rangement, as best shown in Figsc3and 4 -may'be used and will now be described-w Insulating strips as at 51 may beafiixede within the boardsections at the ,rear of each eating units. 1 I

' tionof sectional frame work is illustrated,

group of indicating units. Within such strip a plurality of cooperating pairs of contact terminals as at 52 may be mounted, a number; of such terminals being provided equal to. the number of terminals on the indicator units. Each of the indicating units may be provided with an insulation contact supportingportion 53 upon which the terminals as at 38, 39 and 40cmay be mounted so as to be slidably embraced by the cooperating spring terminals 52 when the group of indicating units is slid into place. In this manner dependable, quick-detachable connections are provided for all of the terminals for each group of units.

Referring more particularly to Fig. 2, it will benoted that from each pair of terminails-52, connection wires as at 54 may be provided, vto a quick-detachable plug member 55,

; which is shown and described in full detail in the above mentioned patent toRobert L.

Daine. From the detachable plug members 55 flexible cables or lead wires 56 may extend. to the selecting or other apparatus as above referredlto.

Referring to Fig. 7 a board section 57 is here shown comprising an outer frame formed of suitable angle irons and of such shape that several of such frames may be readily placedeither side by side or one on to'pof another. The section may be subdivided vertically into compartments one for each stock, by vertical partitions as at 58; each of such partitions may be formed with 3 struck-out lugs as at 59, such lugs forming as shown, meansfor slidably engaging the lIldicating unit, supporting plates 50, and also forming supporting means for the contact supporting strips 51. The general arrange- '5 ment of the indicator units mounted in operating position is shown in the drawings as isalso'the detachable plug member 55 and the quick-detachable contacts at 52.

V Spaces for receiving slips indlcating the previous days quotations may be provided at indicated at 60. The front of the section may be provided with a suitable facing panel 61 having openings opposite each of the indi- In Figs.i9, 10 and 11 a modified construccomprising-section frames as at 62 having vertical supporting strips 63. In this in- V stance angle 1rons as at 64 may be welded or otherwise secured to the strips 63 for slidably receiving the indicator mounting plates 50 aswell as the insulation contact supporting strips 51'. \Vith the sectional indicator board'provid- :d by this invention, the proprietors of brokerage houses may also provide an additional service to such of their customers as have private offices. That is, each of such customers who may be interested principally in a relabively small number of stocksmay have their connections need be changed.-

private offices equipped with one or more indicator'board sections controlled from the same source as the main brokers board of the establishment. Indicators of these additional board sections are preferably made interchangeable in accordance with the inven tion of the above mentioned patent to Robert L. Daine. In this manner the special custom ers may be provided with an indicator board of almost universal flexibility as to service provided, yet such board may be of relatively small dimensions.

Further modifications of the invention are shown in Figs. 1218 in which compartments are provided for digit indicators. As shown in Figs. 12 and 17 four of such compartments as at 65 may be arranged in side-byside relationship within a single container 66 designed to be slidably received between division plates as at 67, which in turn form a part of a section frame. Electrical impulses for operating the indicators may be conducted thereto through a flexible cable as at 68 passing through the rear wall of the compartments 66 and substantially permanently affixed in respect thereto in any suitable manner, such as indicated at 69. The numerous wires within the flexible cable may be either permanently or detachably secured to their respective indicators as at 70. With this form of construction, the front of the indicator board may be made smooth and continuous as at 7l except for the openings- 72 for exhibiting the digits; This form of construction is particularly adaptable to brolrers boards which are accessible from the rear, inasmuch as the digit indicators for one quotation as contained within one of the compartments 66 may be slid out of the indicator board frame toward the rear and the electrical connections through the cable 68 need not be disturbed. VJitlrt-his arrangement indicators may be interchanged at various parts of the brokers board to enable the broker to rearrange the display of the stock quotations and such rearrangement may be secured either with or without interchangeability of the particular items quoted, according to the abovementioned Daine patent. If

desired, the indicators per se may be made to be removable from the front of'the compartments 65 after the compartments 66 have been removed from the brokers board, or if desired, the four separate indicators may be substantially permanently mounted within the compartments 65, in which case all separable contacts at the brokers board itself may beeliminated. With this construction a brokers board may be rearranged and repaired from the rear without the workmans obscuring the view at the front of the board and also, if merely rearrangement of the stocks on the board is desired, no electrical In Fig. 13 the rear view of part of an as- 7 sembled bro-kers board is indicated showing the manner in which four of the compartments or containers 66 may be arranged, one on top of another, to provide for the four quotations for one stock, namely the Open, High, Low and Last" QUOttLt-IOHS. The

construction of the containers and their arrangement in the board is also clearly shown inl ig. 17. If desired, the cables 68 as running to each quotation may be joined to form a larger cable 73 individual to one stock or other item. 7

- Figs. l4, l5 and 18. illustrate. a modified arrangement similar to that of Figs. 12, 13 and 17, exceptthat the indicators for one stock or other. item may be all placed within a single container as at 74 having four smaller subcompartments, 7 o. The subcompartments in turn are each designed to contain the four digit indicators necessary for. one quotation. In this instance, a single cable 76 providing for electrical circuits of all of the indicators for one stock may be substantially permanently aiiixed in the compartment 74: in the manner shown.

Fig. L6 illustrates the front View of a brokers board as embodying the modifications of either Figs. 13 or 15. This figure also illustrates a different. arrangement of the board sections. Sections of. the brokers boardwhich are to be filled with the digit indicators are indicated at 77. In some instances, for the sake-of economy of space, brokers may prefer not to exhibit previous days quotations, and to provide for such cases the board sections as at 7 8 upon the face of which yesterdays quotations are posted, may be made separate and detachable from the section 77, the section 78 being eliminated if the broker so chooses.

In the first modification above described, the'board sections were provided with spaces for the indicia. denoting the stocks quoted. If desired, according to the construction shown in Fig. 16, such indicia may be applied toboard sections as at 79 which are also constructed independently of the

sections

77 and 78; Withthe indiciathus on separate sections, changes in the markings may be much more conveniently effect-ed, since it will be possible. for an indicia section to be prepared with the desired characters painted or otherwise affixed thereon, and the old indiciasection may he slid out and the new in" dicia' section inserted substantially without interruptionof the operation of the board. Furthermore this construction permits digit indicator sections to be usedinterchangeably ith various indicia sections so thatample provision may be made for all contingencies and the brokers desires, as to the indicia, without: making it necessary to maintain on hand an extra quantity of the indicator sections.- Also, in some forms of construction, it may be found advisable to utilize the space within the sect-

ions

78 and 7 9 for the operatbrohers boards to arrange in a vertical tier the va 'i-ous quotations, such as Open, High, Low and Last, for each stock. The space necessary for such quotations for one stock, together with the space required'for yesterdays quotations and the control wires and devices, is such as to be substantially equivalent to the desirable height of board section. Therefore, with the preferred embodiments of the invention as here disclosed, each section comprises the indicators for the quotations of a single horizontal row ofdifferent stocks. Inasmuch as the space necessary for each stock is considerably greater in its vertical dimension than in the horizontal direction, and while'on the other hand the space available in brokers ofiices is generally greater in its horizontal dimension than in its vertical dimension, for this additional reason we find it preferable to limit the height of the sections to that-necessary for the quotations for one stock-rather than providing for a plurality of stocks one above another in each section. Substantially, the widest possible range of flexibility of arrangement of the brokers board to fit thespaces generally available, therefore, is assuredby the constructions shown.

The usual practice as followed in the design of sheet metal frame work and the like constructions may be here followed as to constructionald-etails which are not specifically referred to herein.

l Vhile the invention has been described in detail with respect to particular preferred examples thereof which give 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:

V] hat is claimed as new and desired to be secured by Letters 7 Patentof the United States is:

1. .A brokers quotation board comprising a plurality of frame sections, each having a pluralityof vertical partitions dividingthe section into spaces, each such space corresponding to a particular stock or other item, a plurality of horizontal shelves subdividing each of such spaces to provide sub-compartments each corresponding to a particular quotation such as Open, High, Low and Last of a certain stock or item, and-a plurality ofelectromagnetically operated indicating devices slidably received within each.

of said sub-compartments respectively for indicating the various digits of each quotation as the same fluctuates, each of said devices being an assembled unit separable as such from the others.

2. An automatic electromagnetically operated brokers board for indicating stock operating circuits arranged for quick-detachable engagement with cooperating-contact terminals relatively permanently mount ed on the framework, a plurality of multicontact circuit disconnecting devices mounted on theoframework, one of such devices being individual to each group of indicating devices for one stock or other item and mounted adjacent thereto, and electrical connections from said devices to said contact terminals for their respective associated indicators.

3. An automatic electrically operated brokers quotation board comprising a plurality of substantially similar and inter changeable sections, separable from each other as assembled units and each carrying a plurality of electromagnetically operated indicators for exhibiting fluctuating quotations of a-number of different stocks or other items, said indicators being arranged in a plurality of groups, each group individual to one stock or like item, and providing a vertical tier of several quotations pertaining to each such stock or item, and each of said sections comprising a single horizontal row of such groups of indicators.

4. An automatic electromagnetically op erated brokers quotation board comprising a plurality of sections separable from each other as assembled units and each carrying means for exhibiting at one time fluctuating quotations ofseveral different stocks or other items, said sections being designed to be superposed in tiers to form the brokers board, and independent board sections carrying changeable exhibitors for displaying Yesterdays quotations corresponding to each stock or item, said last named sections being insertable between said superposed first named sections.

5. An automatic electrically operated brokers quotation board comprising a plurality of substantially similar interchangeable and relatively separable frame sections, each such section carrying a plurality of substantially similar interchangeable quick-demountable electromagnetically operated indicators for exhibiting fluctuating quotations of anumber of different stocks or other items, said indicators being positioned in the front portions of said sections, terminal contacts within said sections for quick-detachable engagement with cooperating contacts on the indicators, and relatively permanent connections within the rear portions of the section frames running from said terminal contacts to groups of section terminals, a group of such section terminals bein provided individual to each group of indicators for one stock or other. item. 7

6. An automatic electrically operated broker's quotation board comprising a multitude of similar interchangeable quick-demountable indicating units for respectively exhibiting the several digits of the various quotations, a supporting frame having compartments individual to each quotation, the several indicating units for each quotation being carried in such compartments side by side in close-relationship to cooperate in giving a legible quotation, and said indicating units having contacts for their respective operating circuits arranged for quick-detachable engagement with corresponding cooperating contact terminals within the compartments, whereby the several indicators for the digits of one quotation may be quickly removed or replaced and whereby also any individual digit indicator may be independently and quickly replaced by another. .7. Indicating apparatus comprising a pin-,- rality of electrical indicator units, each hav-- ing rotatable character display drums, a supporting frame for slidably receiving said indicator units to support the same in spaced groups so that the characters displayed cooperate to exhibit a plurality of quotations or other information, apertured masks individual to each of said indicator units and mounted thereon whereby the characters to he GXililJlllGCl are exposed at the apertures, while other characters on the drums are con cealed from view by the masks, and additional masking means common to a plurality of groups of indicator units and located in front of said first named masks, to cover spaces between the indicator units of a group and between the groups of indicator units andto prevent slidable removal thereof.

8. A brokers quotation board construction: comprising a large number of electromagnetically operable rotatable digit indicating drums, supporting means for mounting said drums insuitable spaced relationship where-. by digits will be exposed at the face of the brokers board to indicate quotations of numerous stocks or other items, the drums for each stock or item being arranged in a group, a multicontact disconnectable terminal device individual to each of said groups and through which the control circuits therefor are operated, and means on the face of the board for identifying each of said groups of drums, the space to the rear of said identifying means being occupied by said multicontact terminal device.

9. A brokers quotation board construction comprising a large number of electromagnetically operable rotatable digit lndicating drums, supporting means for mounting said drums in suitable spaced relationship whereby digits will be exposed at the face of the brokers board to indicate quotations of numerous stocks or other items, the drums for each stock or item being arranged in a group, a multicontact disconnectable terminal device individual to each of said groups and through which the control circuits therefor are operated, means on the face of the board for identifying each of said groups of drums, the space to the rear of said identifying means being occupied by said multicontact terminal device, and a plurality of apertured masks for forming the face of the board, said mas is carrying said identifying means and covering the spaces between said groups of drums.

10. A brokers quotation board comprising a plurality of groups of closely spaced rotatable digit indicating drums, one such group being provided for each stock or other item, electromagnetic operating means occupying the space to the rear of said drums, a group of manually changeable indicia on the face of the board adjacent each of said groups of drums, and a multicontact disconnecting device for the circuits of the operating devices for each of said drum groups, said multicon tact devices respectively occupying the spaces to the rear of said manually changeable indicia.

11. The combination of a stock quotation board comprising vertical and horizontal Walls defining compartments, a plurality of sets of indicators for indicating the price ranges of a stock, and a container for each of said sets of indicators slidably and removably mounted in one of said compartments.

12. The combination of a stock quotation. board comprising vertical and horizontal Walls defining compartments, a plurality of groups of sets of indicators each group indicating the various price ranges of a stock, and a container for each group of indicators mounted slidably and removably in one of said compartments.

In testimony whereof We have signed our names to this specification.

ROBERT L. DAINE. RENE GUYE.