US473174A - Jwibjd i v - Google Patents

Description

(No Model.) 4 Sheets-Sheet 1.

A H. J. HAIGHT.

ELECTRIC INDICATING SYSTEM AND INSTRUMENT.

Patented Apr. 19, 18,92.

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(No Model.) 4 Sheds- Sheet 2. H. J. HAIGHT. ELECTRIC INDIGATING SYSTEM AND INSTRUMENT.

Patented Apr. 19, 1892.

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ELEGTRIG INDIGATING SYSTEM AND INSTRUMENT.

APatendaed Apr. 19, 1892.

(No ModeL) 4 Sheets-Sheet 4. H. J. HAIGHT.

ELECTRIC INDIGATING SYSTEMAND INSTRUMENT.

No. 473,174.- Patented Apr. 19, 1892.'

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fn/Q9( f [Zezwyu R9@ wm my l ff f Unirse- STATES PATENT OFFICE.

-HENRY JANSEN HAIGHT, ory NEw YORK, N. Y.

ELEc'rmo `INnlcsrrrlne SYSTEM A Np AlNsl'nurvu-:Nn

SPECIFICATION forming' part Letters Patent No. 413,174, dated April 19, 1892.

'pplication tiled December 15, 1891, Serial 1170.415134. (No model.)

following is av specification.

The object of the invention is to provide a system for the intertransmission between a plurality of stations by electrical meaps of information which is capable of being rendered intelligible through the movements ot' the indices of electric indicating-instruments.

The present invention consists in improvements ou the systems and instruments set forth in Letters llatent of the United States Nos. 442,880 and 442,882, granted to me'December 16, 1890; No. 454,867, granted to me J une 30, 1891, and in application for Letters Patent of the United States, Serial No. 380,612, tiled by me February 17, 1891.

The' new system comprising a portion of the present improvements is especially designed for the purposeof enabling a variety of data concerning each of several subjects to be transmitted. For example, the system may be applied to the transmission of the meteorological data of a number of localities, and for convenience of illustration and description' the improved system will be so described.

The invention consists, also, in improvements upon the 'electric indicating-instruments employed and in improvements upon the multiple-circuit closers employed.

The present improvements are illustrated in the accompanying drawings, wherein- Figure 1 is an exterior view of a casing equipped with a number of the indicatinginstruments and two of the multiple-circuit closers. Fig. 2 is a diagram of the electric circuits at one station. Fig. 3 is a diagram showing the electrical connections between two stations. Figs. 4, 5, and 6 are views in detail of the indicating-instrument.

l will first describe the improvements in the indicating and multiple-circoit-closer instruments, and will then describe the improvements in the system.

Electric indicating t'nstfrwrrtcnt.-This instrument is in most respects substantially similarto theindicating-instrumentdescribed in myapplicatiou Serial No. 380,612, or in number of the parts heretofore employed (par-A ticularly the pawl-lifting mechanism) are dispensed with.

The instrument comprises as its primary features a properly-graduated dial or readingscale A, an index B, capable of astep-by-stepl movement in either direction, two actuating electro-magnets CO2, and mechanism intermediate between said magnets and vsaid index. The excitation of magnet C causes the movement of the index in one direct-ion, while the excitation of the other magnet C2 causes its movement in the opposite direction. nThe scale, index-magnets, and actuating mechanism are allsupported on a suitable supportingplate D of insulating material--such as Woodand to the rear of this plate D is rigidly secured a metallic plate E. On opposite sides ofthis plate E are rigidly mounted two metallic brackets F Fwhich support the magnets C C2, respectively. Also rigidly mounted on the plate E are three perpendicular metallic posts G G. A T-shaped bridge H is rigidly secured to the outer ends of the posts G by screws ct a, so that said bridge is held parallel with the plate E and in rigid and immovable connection therewith. On this rigidly mounted and secured bridge H and the plate E are mounted all the actuating mechanism intermediate between the magnets C C2 and'theindex B. Con- 'lhe index B is se- Thisshaft or spindle c carries at its rear end,

between the plateEand the bridge H, a pinion d, which meshes with a pinion e, carried by a shaft journaled at opposite ends on the metal plate E and bridge H, the shaftf being parallel with the shaft or spindlec. The shafts c f are held in any position in which they may be left by a spring g, which bears frictionally against the shaftf. By rotating pinion c altcrnately in opposite directions tliepinion d (and with it the shaft c and index B).will be rotated alternately in op posite directions.' 'To enable the pinion c to be rotated in one di- IOO -.J should be always uniform and exact.

rection the magnet C is provided. The armarent and in the opposite direction by a'spring- 1c. The upper arm of the armature-lever J carries a pawl ln,'p ivotally mounted thereon.' This pawl engages with a ratchet-Wheel o, (or, more properly speaking, a star-wheel fixed to the shaft f.

' The location ofthe pawl n relative to the ratchet or star wheel o and its method of cooperation therewith constitute one of the essential features of the present invention. The

extent of the movement of the armature-lever Con- sequently provisions are provided forlimitin g its movement in both directions. In the construction shown the magnet C limits the move- -mentof the pawl n toward the ratchet or star wheel o, while one of the posts G limits its movement in the opposite direction, thelever being normally eld in contact with the post by the springl k The pawl fn, is lalso in the normal positiorr of the armature-lever mainf tained in a definite normal position. The pawl li'as atail end q, which is normally heldin contact with a fixed stop-pin l1*'(carried by the arl mature-lever) by a spring s. When the armathe pathr'ofits teeth.

-ture-lever and its pawlsare in their normal po-l sition, the'fpawl is entirely out'of contact with the ratchet lor star wheel andentirely lout of Consequently the ratchet or star wheel is free to be rotated, the

presence of the pawl offering no obstruction whatever; but when the armat ure-lever swings on its pivot the pawl swings in such an arc that it is brought in contact with one of the teeth of the ratchet or star wheel, and the extent of the movement of the pawl is such that v in each movement of the armature-lever the pawl turns\ the ratchet-wheel (and consequently the index B) through a certain defibackwardly, the pivotal vconnection therewith of the pawl permits the latter to ride back idly over the teeth of the ratchet or star wheel, thespring g preventing backward rotation of the ratchet. Since the pawl n when inactive and idle is entirely out of contact with the ratchet or star wheel o, no pawl-lifter, such as has heretofore been employed by me, is necessary to enable the ratchet or star wheel vto be rotated inthe opposite direction. In au exactly similar manner the magnet C2 controls the movement of an armature-lever J 2, carrying its armature h2. LeverJ2 is located on thepside of the shafts c v f, oppositeto that on which the lever J is 1ocated, and it has a pawl n2, (held in normal position by stop-pin r and spring 3,) which is normally out of Acontactwith the ratchet or When the armature-lever swings star wheel o, and whichco-operates with said ratchet or star wheel o (on .the opposite side from the pawl fn) to rotate the index B inthe opposite direction. The relation of the armature-lever J 2 and 'its pawl 'n2 to the ratchet or star wheel o is exactly the same as that of thelever J and pawl ln., except that they are on the opposite side of the ratchet or star Wheel. Consequently said pawl ln,2 in its normal position oers no obstruction to the free rotation of the ratchet or star wheel, and no pawl-lifter for it is necessary.

The extent of` movement of the armatures tive lengthsof the two arms of the armaturelevers, ythe number of teeth of the ratchet or star wheel and the proportionate sizes of the pinions d e determine the distance or step which the index B moves. The dial .oi-scale A is graduated in accordance with the length of the step, and each graduation is deter-'fy desirednumber of steps or degrees in one direction, and by successively magnetizingv and demagnetizing the other magnet C2 the indx may be moved any desired number of steps or degrees' in the opposite direction'.

To enable the magnets C C260 be actuated,

they are'included in proper electric circuits.

l is a'circuit-wire leading tomagnet C. 2 is a wire leading to magnet C, and l1 is areturn- Wire common to them both. Suitable. binding-posts are shown for the connection of the circuit-wires.

MuZtpZe-circait-close'r 'instrument-T wo of these instruments are used at each station, and with a single exception both of the circuit-closing instruments are (or may be) identical in construction with the multiple-circuit closer set forth in my United States Patent, No. 442,882,above referred to. Consequently lthe multiple-circuit closer is shown in the accompanying drawings diagrammatically only, reference being made to said patent for further disclosure of its construction. The object of the multiple-circuit closer is to bring a 'number of branch circuit-Wires, as 1 2, successively into communication lwith one pole of an electric generator. provided with a circuit-closing arm L, which is in constant communication with an electric generator. This circuitclosing arm L is given a step-by-step movement in a single direction, so that it maybe brought into contact with the severalixed electrodes/zz, with which the multiplecircuitcloser is provided. Whenever the circuit-closing arm L is at rest, one of the branch wires, as 1, is in circuit. The step-by-step movement of the circuit-closing arm L is eected by means of an electro-magnet M and suitable intervening mechanism of `To this end it is IOO IIO

8o ,of the magnets iu connection with therelacloser.

trated the instruments for a single statiom It is assumed, for the sake of illustration and description, that the system is adapted for .the transmission and indication of meteorological data. The number of indicating-instruments for each station will therefore depend upon the variety of meteorological data which it is desired to transmit and indicate and the number of localities to which the data refers.v Assuming then that 'thermometric, wind,weather, and time indicationsam to be indicated for Jeach of four separate localities (such as New York, Philadelphia, Baltimore,

and Washingtom) each station Awould be equipped with sixteen indicati ng-instru ments, four for each locality. Fig. 1 is designed to illustrate such a system, showing, 4as it does,

. sixteen indicators, each instrument as a whole being lettered I', I2, la, or I4. There are alsp ateach stationtwo multiple-circuit closers,

(lettered as a whole MC and MC2, respectively,)one of which MC is a locality-determining multiple-circuit closer, and the otherv MC2 is a data-determining multiple-circuit The connections of the multi ple-circuit closers MC MC2 with each other and With the in dicating-instruments are Aillustrated in the diagram, Fig. 2. Of the mechanism of each in this ligure only the index B andthe actuating electro-magnets C C2. p The sixteen indicatinginstruments are arranged in four groups (one group for each locality) containing four instruments foreach locality, one instrument I' being for thermometric indications, one P for time, one I8 for wind, and the other 14 for weather. These four instruments in each groupliaving eight actuating electromagnets C C2, there Iare consequently eight 'equally-spaced electrodes in the data, multiple-circuit. closer, and there are eight wires 1, 2, 3, 4, 5, 6, 7, and 8, connecting the respective electrodes with the magnets C C? of all sixteen instruments.

The wire connections are as follower The odd-numbered'wires 1 3 5 7 are connected-with lthe sixteen magnets C,while the even-numbered wires 2 4 6 8 are connected with the sixteen'magnets C2. The wire l is connected in multiple (by branch wires) withthe magnetsr C of all four corresponding instruments I in each of the four groups. lVire 2 is connected in multiple(by branch wires) with the magnets C2 of all four corresponding instruments 1 in each of the four groups. Wire 3 is connected in multiple (by branch wires) with the magnets C of all four corresponding instru ments'l2 in each of the four groups. Wire 4 is connected in multiple (by branch wires) with the magnets Czof all fourcorrespcnding ployed.

instruments l2`in eachjof the four groups.

Wire 5 is connected in multiple.`(by branchwires) with the magnets C of all four corresponding instruments I3 in each of the 'four groups. Wire 6 is connected in multiple (by branch wires) with the magnets C2 of all four corresponding instruments I3 in each of the four groups. Wire 7is connected in multiple (by branch wires) with the magnets C of all four corresponding instruments I'L in each of the four groups, and wire 8 is connected in multiple (by branch wires) with the magnets L C2 of all four corresponding instruments I? inl l8o each ofthe'four groups. The data multiplev circuit closer MC2 accordingly has asf'many electrodes 'v as there are actuating-mag C2 in each group of instruments. The circuitrclosing arm L of the dat tiple-circuit closer'MCzis connected byff 9 with one pole of an electric generato Consequently the position of the circuit-elo. ing arm L with reference to the several elec trodes e 'determines which of the wires 1, 2, 3,--k go fw is in circuit and the particular magnet of that. l l

instrument. It'does not,however, determine I 1 which of the groups of instruments is in cir- 'roo' cuit, since each electrodesisinelectrical'cornection (by its wire and the branches thereof).v

with all four'otthe corresponding instruments 'I 'L v 12.12, I3, and I4 of Ieach of the several groups? Since each group of instruments relates toLrogk a given locality, other meansare 'necessary todetermine the locality, and 'therefore the locality multiple-circuit closer MC is em-A multiple-circuit closer is connectedV by wire `l() with the oppositepole of the generator N, and it has as many electrodes (whi'chare'lettered c' to distinguish them from the electrodes c of the data multiple-circuit closer,`4

MC2) as there are groups of instruments, and'` i t 5 consequently as many electrodes as there are localities. Itis therefore appropriately termed a locality multiple-circutticloser. As there' are four localities provided for `in the illufs tratcd system, and consequently four uroups '12o of instruments, there are four lelectrodes 'u' .in the locality multiple 'circuit closer MC. Fourreturn- wires 11, 12, 13, 14 connect the' electrodes c'respectively with the several groups of indicators. The eight magnets C C2 0E the four indicators I 12 I3 I4 of the first group (upper left-hand group, as, shown-,in Fig. 2) are all connected in multiple (by branch wires) with the return-wire 11, andin a similar manner the eight magnets of each of the other groups are connected ,in multi- Y ple, by their return- wire 12, 13, or 14, with oneV of the electrodes c' of the locality multipleg `circuit closer MC. Consequently in order v Thecircuit-closing arm L ofthis` f um that any particular magnet of 4any particular one of the several indicating-instruments may be in circuit with. generator N the conjoint action ofthe circuit-closing arms-L L of the two multiple-circuitclosers MCl and MC2 is necessary.

With the position of lthecircuit-.closing arms L L shown in:Fig..2 the circuit-.lisas follows: from batteryN, through wire 9, to armL of multiplecircuit closer MC2, elec-y trode fu, -wire 1, magnet C of inst'r-umentl of vthe upper left-hand group, wire' -.11, to elec-l trode 'v' of multiple-circuit closer MC, arm- L thereof, and wire 10,-'back to the opposite pole of the battery N. It is therefore, evident that locality multiple-circuit cleser'MC -must have as many electrodes fu as there are localities, that data Vmultiple-circuit closer MC2 must have .as many electrodes u as there are magnets in the several findicatorslfor each locality, and that consequently the producty of the number of electrodes omultiplied by vthe number of electrodes/U must equal the total numberuofy the magnetsC C2 of v.all thel indicators at the station. Thus if there'were twenty-four localities tol be reported andsix charactersof indications for each local-ity there would be two hundred and eighty-eight of the magnets C C2. I Under the systemshown in my patent, hid/142,882, hereinbefore referred to, this would have necessitated two hundred -and eighty-eight electrodes in the single 'm ultiple-circuit closer there employed,

and (since the multiple-circuit closing arm can .move only in one direction) it might have required in the most extreme cases al making and u reaking ofthe-.circuit which controls the movement ot the circuit-closing arm two hundred and eighty-seven -times in order to bring 4the'desired electrode into circuit. By .using "the 'two multiple-circuit closers MC and MC2,

however, in the supposed instance the locality multiple-circuit closer MC would have twenty-four electrodes o', and the data multiple-.circuit closer -MC2 would have'twelve )electrodes e, andunder the most disadvanta- "'fgeous' circumstances it would only require making and breaking a circuitv thirty-four ftimes (twenty-three plus eleven) to bring the desired magnet C o'r C2 into circuit-that is, if independent means were provided for operati-ng the two multiple-circuit closers. Fig. 2. also shows electrical means for controlling the movements of the circuit-closing arms L L of the two multiple-circuit closers MC and MC2,

and also for moving in the proper direction the index f the particular indicating-instru-l ment which is brought into circuit by means of the conjoint action'of t'ne two multiple-.circuit closers. v

The controlling-magnet M of multiple-circuit closer MC is in a local circuit 15,having generator LB', said local circuit having a break controlled by a relay-magnet RM. Relay-magnet RM is a circuit having linewire 1G and a wire 17 leading to a main battery MB. A break in wire 17 is controlled by a switch or `key O. L Byv manipulating switch or key O the arm L of vmultiple-circuit closer MC is given .a step-by-step; movement, which brings it successively inl contact. with the several electrodes lv. .By including a plurality of relay-'magnets RM in series in the line 16 it is evident that-a plurality of multiple-circuit closers =MCiat aI plurality ofstations can be operated in unison. f

Thevcontrolling-.magnet M of multiple-circuit closer MC2 is in alocal circuit 18, having generator ,LB2, said :local circuit having a breakA controlled by a relay-magnet RM2. Relay-magnet lRM2 is in a circuit havingline- -wire 19 and va wire 2O leading to the main battery MB. A break in wire 20 is controlled byza switch or key P. .Bymanipulati-ngswitch or key P the arm L. of multiple-circuit closer MC2. is given aste-p-by-step. movemenurwhich brings it successively in-contact withtheseveral electrodes c. VBy including a plurality of lrelay-magnets RM2 inseries in the line 19 it is evident that a plurality of multiple-circuit closers .MC2 at al plurality ofstationscan be operated in unison.

The local circuit,which includes the battery N, wires-9 10, armsL L of thetwo multiplef circuit closers, and one magnet of one of the .indicating-instruments, has a break either in .wire 9 or in wire 10, (it being shown in wire 10,) which is controlled by a relay-magnet RMS. ing a line-wire 21 and a wire 22'leadiug to the battery MB. A break in wire 22 is controlled by aswitch or key Q. By manipulating key or switch Q the index B of the particular indicating-instrument in circuit is given ,a-stepby-step motion forward-or back, depending -upon whether magnet C or ,C2 is in circuit. By including a plurality of the magnets RM3 in series in the line 21 it is evident that a plurality of corresponding indicating-instru1 ments ata plurality of stations can be operated in unison. Y

The system as thus far disclosed is distintwo multiple-.circuit closers having. special relation to each other are employed. In Fig. 3, however, an arrangement of multiple-eir- 'cuit closers at two stations X and Y is shown which dispenses with one of the three linewires 16 19 21, one of the three lfocalfbatteries LB LB2 N, and one of lthe switches or keys O P Q. This is done by dispensing with my special means for operating one of the multiindicated how the relay-magnets can be arranged in series in orderfto operate the instruments at two or more.v stations in unison. In this iigure,for conveniencein illustration, only one indicating-instru ment at each of the stations Xand Y is stima- 11.I The circuit-wires of the other.,in dmating-instruments are, however, indicated. The-arrangement of the circuits in this yfigure is the saine-as in Fig. 2, except` as followsi Line-wire 1G, relay-magnet RB/Iwirefw, andv switch C (which control guished from my prior patents only in that Relay-magnet RM3 is in a circuit hav- IOO ple-circuit closers, as MC. In'Fig. 3 it is also the locality multiple-circuit closer MC) are omitted. Wire l5, leading from the controlling-magnet M of multiplecircuit closer MC, is joined to wire l0, and a wire 23 leads to said magnet M from an additional intercalated fixed electrode w on the data multiple-circuit closer MC2. Consequently magnet M of locality multiple-circuit closer MC is in a local circuit, including wires 9 23 15 l0, arm L of data multi ple-circuit closer MC2, electrode w, and the local battery N, which effects the movements ot' the indicating-instruments.

When the arin L ot multiple-circuit closer MC2 makes the step from the two adjacent electrodes t' o on either side of the intercalated electrode w, the arm L, in passing over said electrodew, makes and breaks the circuit, including the magnet M of the multiplecircuit closer MC, and consequently the arm L thereof is moved one step at each complete rotation of the arm L of the multi plecircuit closer MC2.

1t may be here noted that the only difterence in construction between the multiplecircuit closer here employed and that set forth in my patent, No. L142,882, consists in the intercalated electrode w, on which the circuitclosing arm L does not dwell.

As a convenient and preferred construction, all the instruments at a station are mounted in one casing, as indicated in Fig. l, the op# erating mechanisms ot' each group of indicating-instruments I 121314 being mounted on a single metallic plate E.

I claim as my inventionl. A ratchet or star wheel capable of rotation in opposite directions, the rotary shaft or spindle carrying said star wheel, and the spring g, bearing on said shaft or spindle, in combination with two oppositely-swinging levers on opposite sides of said ratchet or star wheel, each of said levers swinging through a definite and determined arc, a pivoted pawl pivoted to each of said levers, and a stop r and spring s ou each lever, which co-operate to maintain said pivoted pawl in its normal position resting against said stop, each of said pawls in its normal position and in the normal position of its lever being entirely out ot' contact and interference with said ratchet or star wheel, but each of said pawls beingr brought into contact with one of the teeth of said ratchet or star wheel when its said lever ing a step-by-step movement, whereby it is p brought successively into contact with and dwells upon each ot' said electrodes, and an actuating-magnet M, an electric generator N, an electric conductor connecting one pole of said generator with the circuit-closin g arm of said multiple-circuit closer MC2, an electric conductor 23, connecting said electrode 'w with said actuating-magnet M, and an electric conductor connecting said magnet M with .the opposite pole of said generator,substantially as set fort-h. c u v 3. A plurality of groups of electric indicating-instruments, each group of indicating-instruments having a plurality of said instruments, the indicating -instruments in one group corresponding with the instruments in the other group or groups, in combination with two multiple-circuit closers MC and MC2, 'each having a plurality of electrodes, and a circuit-closing arm capable of a step-by-step movement, whereby it is brought successively into contact with` and dwells upon each of the electrodes, each of the electrodes of one of said multiple-circuit closers, as MC2, being connected in multiple with the corresponding electric indicating-instrument in each of said groups, and each of the electrodes of the other multiple-circuit closer MC being connected in multiple with all of the indicating-instruments in one of said groups, substantially as set forth.

In witness whereof l have hereunto signed my name in the presence of two subscribing witnesses.

` HENRY JANSEN HAIGHT.

Witnesses:

ARTHUR S. BROWNE, CARLETON E. SNELL.

IOO

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