US1035971A - Selective signaling apparatus. - Google Patents

Description

D. W. KNEISLY.

SELECTIVE SIGNALING APPARATUS.

AYPLICATION FILED HAYS 1909.

1 335,97 1. v Patented Aug. 20, 1912.

3 SHEETS SHEBK 1.

as X mmm wumml a) m I )33 8mm I D. W. KNEISLY.

SELECTIVE SIGNALING APPARATUS.

APPLICATION FILED MAY 3, 1909;

Patented Aug. 20, 1912.

3 $HEETSSHEET 2.

D. W. KNEISLY.

SELECTIVE SIGNALING APPARATUS.

APPLICATION FILED MAY3, 1909.

1 ,O35,97 1 v Patented Aug. 20, 1912.

3 SHEETS-SHEET 3.'

' reason.

.DANIEL W. KNEISLY, OF DAYTON,

OHIO, LOCKOUT MFG. (70., OF DAYTON,

.essreuoit onto, A oozer'ona'rroiv or onto] SELECTIVE SIGNALING APPARATUS.

v Specification of To all whom it may concern:

Be it known that I, DANIEL "W. Knmsnv,

' a citizen of the United States, residing at Dayton,

na-lin Apparatus, of which the following is a specification.

My invention relates to telephone apparatus and particularly to lockout devices for common or party line telephones.

The objects of the invention are to sim plify the structure as well as the means and mode of operation of such devices whereby they will not only be cheapenedn construction but will be rendered morejpositive and efficient in operation, easily operated, and unlikely to get out of repair.-

One of the primary objects of the inven tion is to provide a device of this character in which only the instrument selected from the series of similar instruments on a common line will be rung in calling the subscriber, and particularly to provide a device whereby any subscriber other than the one called will be prevented from using his instrument until the line is returned to normal, thus preventing interruption to a conversation and'preventing the conversation being overheard by other parties on the common line.

A further object is to provide means for returning the respective instruments to normal instantly atthe -will of the operator without the necessity of completing a series of stepup operations as is usual in such devices. 1

'A further primary object of the present invention is to provide an instrument which may readily be introduced into the circuits of existing common party lines without the necessity of rearranging the circuits or in any way interfering with the telephone mechanism. A further primary object is to provide means whereby thestep up mechanism may be rendered inoperative by the subscriber or; maintained in its normal condition, thus enabling the central operator to call back i on the line and select another instrument on the same. line independent of the calling instrument-,- and further to provide means whereby the calling instrument will thereby be temporarily out out of the talking circuitso that the subscriber can not, by block- !110 .trnn naYrongnLnrrroun Lette s new, Patented Aug. 2o, 1e12 Application filed May 3, 1909. Serial No. 493,730. I

ing his instrument, be enabled to overhear conversations.

With the above primary andv other incidental objects in view, as will more fully appear in the specification, the invention consists of the features of construction, parts and combinations thereof, and mode of operation, or their equivalents, as hereinafter.

described and set forth in theclai'ms.

' In the drawings, Figure 1 is a diagram matio- View indicating the circuits of the central operating station and one subscriber station including the telephone and the loc c out mechanism. Fig. 2 is a side elevation of the assembled lockout device. Figs. 3, 4, and 5 are enlarged detail views of a portion tions or stages of operation. Fig. 6 is an end view of the assembled lockout device. Fig. 7 is a :top plan view of the contacts or circuit terminals. Fig. 8 is perspective view of the detent pawl, the polarized ar- -mat-ure and means for locking the parts. Figs. 9 and 10 are detail perspective views of the polarized armature and locking means therefor. 1.1. is bottom" plan view or" the assembledlockout device.

Like parts are indicated by similar characters of reference throughout the several views.

The device shown in the drawings and hereinafter described is designed to be one of a series of similar instruments located on a common or party line and adapted to be operated from a central station by a series of separate impulses sent over the line, each instrument being adapted to be released or brought into talking condition by a definite predetermined number of impulses. The construction is such that only one instrument is ordinarily in the talking circuit at a time, the remaining instruments of the line being maintained. in an inoperative condition. However, the present invention in volves means for bringing several of the instruments on a common line in talking 'condi'ion at the same time.

In constructing the device there is employed a support or main frame 1 preferably of metal but which may be oi any other suitable material. Supported on brackets 2 and 3 projecting from the 'main frame is an electromagnct 4t bridged across the main line and excited by a current from the central station. A permanent magnet 5 is also oi the lookout mechanism in differentposisupported on the bracket 2 and extends ad- '8 carried on an oscillatin jacent to the electromagnet 1. The bracket 2 is of iron connecting the cores of the respective coils of the ma net 4. Pivoted at 6 on the frame 1 is an oscillating sector having in the periphery thereof a series of notches or ratchet serrations. These ratchet serrations are engaged by an actuating pawl lever 9 pivoted at '10 to the bracket 3. T e lever 9 carries below its pivoted point 10 an armature 11 attracted by the electromagnet 4: to oscillate said lever against the tension of a spring 12 which tends to oscillate the lever to normal after each movement due to an electric impulse through the magnet 4. The actuating pawl; 8 engages the oscillating sector 7 slightly above the pivotal point thereof or eccentric therewith, whereby the pressure on said sector by the pawl due to the pull on the spring 12 upon the lever 9, will cause a revoluble movement of the sector. The op erating pawl 8 is pivoted to the lever 9 and is permitted a slight pivotal movement at each oscillation of said lever due to the elevation of the particular notch of the sector 7 with which it is engaged. The movement of the sectorand pawl, however, is limited to the distance of one tooth or notch at each operation by a pin 13 in the main frame which arrests or limits the upward movement of the pawl 8. The actuation of the sector 7 is further assisted by an inclined cam surface 14 on the underside of the pawl 8, which, during the forward movement of the pawl, engages a pin 15 also in the main frame an thereby serves to elevate the pawl. Upon the oscillation of the lever 9 by the attraction of the electromagnet 4, the pawl is withdrawn from engagement with the sector 7 and when the cam surface 14 has receded beyond the pin 15 the pawl 8 drops to a position to engage the next notch of the series as'shown in dotted lines in Fig. 1. When the electric current is interrupted and the magnet 4 no longer attracts the armature 11, the spring 12 will return the lever 9 to normal position, causing the pawl 8 to engagethe next tooth or notch of the series and thereby oscillate the sector 7 until arrested by the pin 13 as shown in solid lines in Fig. 4. A spring actuated detent arm 16 is pivoted'o'n the main frame and normally engages the ratchet teeth of the sector 7 to maintain the sector in its operated position.

Pivoted to the lower portion of the detent arm 16 is a swinging polarized armature 17 that when the controlled by the electromagnet 4 and permanent magnet 5 and caused thereby to swing about its pivotal connection with the detent arm 16 into and out of the path of the contact screw or stud 18 projecting from the armatiire 11. The construction is such K olarized armature 17 is out of the path of t e stud 18, as shown in Figs.

7 through a step by step movement, the sector being maintained in its operated position by the detent arm 16 under the influence of the spring 19. However, upon the reversal of the direction ofthe current through the electromagnet 4t the swinging polarized armature 17 will be caused to move into the path of the stud 18 and upon the oscillation of the lever 9 due to the attraction of the armature 11 by the electromagnet 4, the stud 18 will engage the swinging polarized armature 17 and thereby oscillate the detent 16 on its pivotal connection 20 causing the with drawal of the detent arm 16 from engagement with the ratchet-teeth of the sector 7 permitting the sector to return to normal position, At its upper extremity the lever 9 carries a contact terminal 21 directly connected with the main line. Supported on the upper portion of the main frame 1 is a ringing circuit terminal 22 and interposed between the ringing c1rcu1t terminal 22 and the movable terminal 21 on the lever 9 is a talking circuit terminal. '23. The arrange ment is such that by the limited movement of the lever 9 the terminal 21 is brought into contact with the talking circuit terminal 23 thereby closing the talking circuit and enabliu g the subscriber to talk with the central operator. By an additional oscillation of the lever 9 the talking circuit terminal 23 is deflected suflicient to contact theringing circuit terminal through the terminal 23 interposed between the ringing circuit terminal 22 and themovable terminal 21. In the series of notches or ratchet teeth in the sector 7 there are two notches of greater depth than the others :--a deep notch a: which varies in its relative location in each sector of the series of instruments on the common line aocording to the number of steps or impulses required to bring the instrument into operative condition; and, a second deep notch 'y whichis the initial notch of the series and which is of less depth than the notch 00 but of greater depth than the remaining notches. The notch j is similarly located in each of the instruments; that is, it is the initial notch of the series. The second notch ofthe series in each of the instruments is a shallow notch. The notch m may occupy any of the remaining positions on the sector but is differently located in each instrument. The adj ustmentof the parts is such that when the actuating pawl 8 is engaged. in the deep notch a". the ringing circuit between the terminal 21 on the lever 9 and the terminal 22 is completed through the contact of the ter- -minal 21 with the talking terminal 23 {and the contact of the terminal 23 which is flexed. by the engagement of the terminal 21 into contact with the ringing circuit ter'minal22.

Thus, when the deep notch-a1 is engaged" the actuating pawl 8 both the talking c1'r-' lever 9 and the adjustment is such that when the pawl 8. is engaged in the said notch}; the movable terminal 21 on the lever 9 will contact the talking circuit terminal 23, but

I the talking circuit terminal 23 will not, in

ringing circuits are inai flexed. sutlicient to contact the terminal '22 and the tin gmg This is this case, be ringing circuit circuit terminal will remain open. clearly shown in Fig:

W'hen theactuating pawl 8 is engaged in one of the shallow notches not only will the ringing circuit be broken by the talking circuit terminal being held out of contact with the terminal 22 but'thc talking circuit also will be broken by the movable terminal 21 being held out. of. contact with the talking circuit terminal 23. The engagement of the actuating pawl -8 with the notches of the sector 7 limits the oscillation of the lever 9 permitting a greater oscillation when engaging the deepest notch :10 thereby closing both ringing and talking circuits permitting less oscillation when engaging the medium deep notch y thereby closing only the talking circuit and permitting the less oscillation of the lever 9 when engaging the shallow notches in which case both the talking and 'ntained open as is particularly shown in Fig. l.

The normal positions of all the instru- I ments on-the line are with the actuating pawl in awl 8 enga cs 8 in the initial deep notch y which permits the lever 9 to oscillate suiliciently to cause the movable terminal 21 to contact the talking circuit terminal 23, thus closing the talking circuit and permitting any ,subscriber on the common line to communicate with central upon removing the receiver from the hook. It will be understood that the normal condition of all the instruments on the line is with the talking circuit closed and the ringing circuit open, the actuating pawl 8 being engaged in the medium deep notch y] as shown in Fig. 3. However, the first step up operation whereby the actu.at the second notch or. tooth which in every case is opens both the talking and ringing circuits as shown in Fig. 4. Subsequent step up operations cause diiiercnt instruments on the common line to be brought into operative condition by the closing or both the talking and ringing circuits upon the engagement of the actuating pawl 8 with the extreme deep notch 02 as shown in Fig. 5.

After the respective devices have been stepped up the desired instrument selected and conversation finished, it becomes necessary to return the devices to normal condiits pivotal the shallow notch .1

tibn preparatory tothe next call. Whenit is desired to return the parts to normal an impulse is sent over the line in a reverse direction from the central station, thus reversing the poles of electrom agnet and cans ing the polarized armature 1.7 to move on connection to theposition indicated in dotted lines in Fig. 6, inv which p0 sition it will be in the path of the stud 18 carried in the armature 11 and through the attraction of the-armature 11 by the magnet e the stud 18 will engage the polarized a1"- ma'ture 17 and oscillate the detent lever 16 uponits pivotal connections 20, to withdraw the detent lever from engagement with the ratchet teeth of the sector 7, whereby permitting the sector to return to the normal position when the actuating pawl 8 Willagain rest in the initial or medium" deep notch 3 as before described. The movement of the polarized armature 17 due to the engage- "inentot the stud 18, is indicated by dotted lines in Fig. 9. Y

It will thus be seen that .the step up or selecting operation and the release or return to normal position are both accomplishe by the oscillation of the lever 9 due to the attraction of the single armature 11 by the magnet Whether the oscillation of the lever} accomplishes the step up or therelease of the sector is determined'by the position of the pivoted polarized armature 17 which is moved into or out of the path. of the stud 18 according to the direction in which the electric impulse is sent through the magnet t. .The oscillation of the lever 9, independent of the polarized armature 17 when said polarized armature is out of the path of the stud. 18, will, upon the return of the lever 9 to normal, cause the sector to he stepped up the distance of one notch. However, when the polarized armature 17 is moved into the path 9 and the detent lever 16 also move in unison due to the attraction of the armature 11 by the magnet l which will not only withdraw the actuating pawl 8 but also the detent leof the stud 18, the lever ver 16 from engagement with the sector thereby permitting the sector-to return to normal. 111. case a subscriber wishes to talk with a second subscriber on the same line, provision is made whereby the calling subscriber may lock his instrument against the step up operation therebyv maintaining the actuating pawl 8 in the initial or medium deep notch y and the talking circuit closed as in Fig. 3. This is accomplished by means of a slide member 24: mounted to reciprocate on the bracket 3 on the main frame and operated by the subscriber by the depression of a button 25 protruding from the case of the instrument. The slide member 24 is provided witharecess or notch '26 within which the extremity of the polarized armature 17 extendskgfldythe depression of the button 25 the slide member 24 is reciprocated and the polarized armature may be moved about its pivotal connection on the detent lever 16 into the path of the stud 18 against the influence of the electromagnet 4. The slide member 24 is provided with a finger portion 27 which projects beyond the polarized armature 17 and when the polarized armature has been moved into the path of the stud 18 by the reciprocatory movement of the slide 24 the finger portion 27 will block the movement of the polarized armature 17 due to the engagement therewith of the stud 18 and thereby prevent the with the detent let'er 16 about the pivotal connection 20 thereof. The'slide member 24:

is normally held in its normal position by a spring plate 28 engaging a stud 29 on said slide. When the slide member 24 is in its normal position and the polarized armature 17 is moved into the path of the stud 18 through the influence oi: the electromagnet 4 through which the impulse is sent in reverse direction; the polarized armature 17 will move beyond the extremity of the finger-portion 27 of the slide member 24: as shown in Fig. 9 in which case it will be permitted to.

} move inward upon'being engaged by the stud 18 thereby operating the detent lever 16 to withdraw it from the sector 7.

As before described, an unscrupulous person might, by depressing the button 25 of his instrument lock his instrument against operation and enable him to overhear conversations. In order to obviate this, the spring plate 28 which returns the slide member 24 to normal is preferably one blade of a switch 30in the talking circuit as shown in Fig. 1

the corresponding blade of which is in con-.

tact with the plate 28 and the circuit closed when the parts are in normal position. However, when the subscriber depresses the button 25 to lock his'instrument against op eration he simultaneously opens the talking circuit through the flexing of the spring plate 28, thus rendering the instrument inoperative until the button 25 is released.

(J'i'rcu-its.ln Fig. 1 is illustrated (liagrammatically the various circuits, operative parts and connections; the central station apparatus being indicated at the top and the subscribers instrument at the bottom of the main line a-a common to a number ot bridged across the line; the drop 1ine 31 f circuit between t the opposite side of the main line by a drop line 32, thus completing the circuitqbetween "the opposite. sides (of the mainline ar.a

through the magnet Land frame. The sub scribers call bellcb is bridged between the terminal 22 on the mainframe 1 and the drop line 31 including in the circuit a switch,

closed by the receiver hook when said-hook l is down.- The ringing circuit is, as follows:

from the main line a through the dropline 32 to the frame, 1; thence-from .the contact 21 to the contact '22 through the intermediate terminal 23; thence through the-switch closed by the receiver hook e and bells b to the drop line 31 and the side a of the main line. The subscribers calling mag-- neto c is bridged between-the drop lines 31 and 32. The receiver .and transmitter cirv cuits are the usual telephone connections. The receiver hook e of the telephone instrumentis connected through the switch 'comprising the plates 28 and 30-wi ththe talking circuit terminal 23, which i'n-turn is in contact with the terminal 21 on the main frame of the lockout instrument and through the drop line 32 with the main line a. The receiver hook is' adapted, when in its down position, or whencarrying the receiver, .to close the ringing circuit and when the receiver is removed and. the hook moves to its upper position,--tobreak the ringing circuit and close the receiver and transmitter circuits as is usual in telephone constructions.

The receiver circuit extends between the re ceiver hook through the-secondarybf the coil (Z to the drop line 31 including'in said circuit "the'receiver e'and condenser f. The

including: in' the circuit, the" transmitter g and;the battery it. At the central. station there are two lines 33 and 34 connected with-the main line a anda through the transmitter circuit extends from the" re ceiver'hook 6 through the primary of the coil (Z and-thence back to' the receiv'er'hook,

usual calling and answering jacks not-shown the drawings. The usual annuhciat'or drop is indicated at z and is normally bridged across the lines 33 and 34;"through a switch j. is is tlieloperators instrument, Z is a keyffon sending separate selecting impulses over the "line: to *operate the subscriber s selector fiii'eclialrism."" A pole otlier source oftenergy t. f0 i's;a generator adapted to be ,broughtlln'to thecirfcuiuby the closing O'fthehv'vitchy): e. figure. Atthe right of the figure is the Opewhioni ivheii in normal position indicated in ahd f3, the actuating pawl 8 engages" thenotch 3 "and the talking ""tmi ls 21 and 23jis thus sending the current through the g'en-' closed. The subscriber operates the calling magneto o and removes his receiver from the.

' hook, allowing the hook to be lifted by suitable spring action, thereby closing the re- 5 ceiver and transmitter circuits and simultaneously breaking the ringing circuit. This call is indicated to the central operator by the annunci'ator drop z'. The-operator moves the switch-j to cut the -drop1 ou t 'of circuit and to bring the operators instrument is into the talking circuit. Upon receiving the subscribers call the operatorwill move the switch j'to cut out the operators instrument to bring into the circuitthe ing key Z. The operator will select or' unlock the key Z to close the circuit a predetermined number of times as may be necessary to bring theactuating pawl 8 of the desired instrument into the deep notch At each closure of the key Z an electric impulse will pass from the battery m through the key I and switch j to the line 33, thence to the main "line a and over the drop lines 32 andthrough the magnet 4 of every instrument on the line, thence returning over the dro lines 31, mainline a and central;- station line 23, to the battery, thus completing the circuit. Each impulse exciting tlie' magnet t will cause the oscillatory sector 7 to be stepped up one notch as before described. At the first step or impulse the I actuating pawl 80f each instrumenton the line will engage the second notch, which in every instrument is a shallow one. This will holdthe lever 9 in such relation that the terminal 21 will be disengaged from the ter minal 23 and the talking circuit will be maintained open At each subsequent step ofthe respective instruments the actuating pawl 8 of some one of the SBI'lGSIOf instru- ,ments will engage the deep notch :12 said .lriotch a". being difi'erently located'in each inisfirument. The instrument illustrated in the '45 Edi-swings is the number nine instrument of the series being brought into operation on the tenth step or impulse. The 'first step serves to break the talking connections between thecontacts 21 and 23, while the ninth subsequent step will release the illustrated instrument by the actuating pawl 8 engag- :ing the deep notch. :22 which will permit the lever. 9 .to'oscillate sufiiciently to close both the-talking and ringing circuits. The subscriber is then called by closing the switch 7?,

v erator 0 over the line 33 51nd main line a to the drop line 32; thence tlirou h the frame 1 to the lever 9 the terminals 1, 23, and 22, through the bell b to the drop line 31 and y to thereturn, mainline a and central station line 34 to the opposite pole of the generatorp. At the time the actuating pawl 8 of the illustrated or called instrument oni 5 gages the notch the pawl 8 of every other' impulse send desired instrument by operating the.

' respective instruments. ity of the magnet 4 will cause the return ance according to the position instrument on the line is engaged with a shallow notch and the ringing and talking circuits of such instrument are the subscriber desires. to talk with a second party on the same common line after calling the central operator as before described, he

will depress the button 25 of his instrument which will operate the slide member 24: to move the 'swingingpolarized armature 17 into the path of the stud 18 at which time the finger portion 27 of the slide member .24 will be thrust behind the polarized armabroken. If. I

ture 17 and will thereby prevent the oscil lation of the detent arm 16 when contacted by the stud 18 and by thus blocking the movement of the armature 11 when attracted by the magnet 4, the oscillation of the lever 9 is effectually prevented and the sector 7 remains in its normal position with the actuating pawl 8 engaging the initial notch y and the talking circuit closed as in Fig. 3. While the calling subscribers instrument is thus held inoperative the remaining instruments on the line are stepped up in themanner before described to selectthe desired instrument which will bring the two instru-' ments, the calling instrument and the select ed instrument into the talking circuit at the same time. When it is desired to return the instruments to normal after the completion of the conversation, the key Z is closed to send an im'pulse 1n the opposite direction over theline through the magnet 4 of the The changed polararmature into the'path of the stud 18 thereby causing'the detent arm 16 to be oscillated by the oscillation of the armature'll to dis engage it from the sector 7 and at the same time withdrawing the actuating pawl 8.

When so disengaged, the sector will be returned to normal by gravity. While a donble metallic circuit ar-a "h as been described, the main line wire 0 might be dispensed with under certainconditions, and the lines 31 and 34 might be grounded at 35and 36 in Fig. 1, "thus completing the circuits through the ground instead of through the line a If-metallic-talking and selecting circuits are desired, the ringing may be accomplished through the ground between points 37 and 38 in Fig. 1.

It willthus be seen that only two con- '3 ductors' are required to form both the" operating and talking circuits one of which conductors may be ground, or two metallic conducto-rs maybe employed with an additional grounded ringing" circuit. However, the preferred. form is two metallic conductors as shown in solid lines in the drawing. It will be noted that no adjustment of resisth ofthe curmenton the line or the, stren of the instru- I the device is actuated by the electrical impulse, the operations aiie erformed independent of the strength (if zhecurrent, the instrument being unaffected by any variations'thereof, providing-it is always of suflilimited to the field of telephony, 'rlout is equally applicable to. other purposes, wherein it is desired to select some particular si .nal apparatus or electrical device of a series connected in a common circuit, the instru ment is especially adapted for use 1n railway signaling work and similar purposes. :wherein it would only be necessary to substitute the. electrical control sign. flipper ratus for the subscribers telephone'instrument in the construction shown in the drawings. I, therefore, do'not limit the invention totelephones. -Furthermore, it will be impossible for a subscriber to monopolize the hue or for an unscrupulous subscriber to persist in eavesdropping by holding the opcrating button 25 in depression and thereby maintaining the instrumentin normal condition as before described. When a subscriber refuses'to vacate the line upon requestbut continues to hold the push button of his instrument depressed the operator may nevertheless step the instrument up zand thereby'break the talking circuit by operation. tion will not affect any oftheinstruments sending one impulse over the line in reverse direction and proceed with the usual step up Thls impulse in reverse direcon the line except the one which is being held by the subscriber in as much as this :reverse impulse is the operation which re turns all instruments to normal under-ordinary circumstances and at the beginning all the calling operation of the instruments on the line are in the normal condition. However, the reverse impulse will affect the instrument being held to step the sector 7 up one step whereby the actuating pawl 8 will engage the second or shallow notch of the series and thereby break the talking circuit. When the sliding member 24 is being held in operated position by the depression of the button 25 the polarized armature 17 is moved by the sliding member 24 against the influence of the magnet 4 into the path of the stud 18 as shown more particularly in detail in Fig. 10. However. upon the reversal of the electrical impulse through the magnet the polarized armature will be swung independent of the sliding member 24 to a position beyond the stud 18 thereby permitting the armature 11 to be attracted by the magnet and the operating lever 911ml connecting pawl 8 to be oscillated inthe nsnalmanner to step up the sector 7 one or advantages. n.

more notches. After this has been accompllshed the remaining instruments on the line may he stepped up by impulses sent in the normal direction which impulses will return the-polarized armature of the unruly subscribers instrument into the path'of the stud l8 and thereby prevent the operation of his instrument to further step up the instrument if he continues to hold theslide member 24 in operated position.

From the above description it will be apparent that there is thus produced a-device of the character described possessing the particular features of advantage-before-enumerated as desirable but which obviously is8 susceptible of modification in its form, de-

' tail construction,proportion, and. arrangevment of parts, .without departing from the principle involved or sacrificing any of its Having thus described my invention, I claim:

1. In a device as described,- the combination with two electric circuits of a stationary terminal peculiar to one of said circuits. a-l movable terminal common to both these circuits, and a yielding terminal peculiar to the other circuit interposed betweensaid movable and stationary terminals and means for electrically controlling saidiimovable termis95 nal whereby one or both, of said circuits may be closed by the movement thereof, sub stantially as specified.

2. In a. device as described, the combinationwith a plurality of electric circuits. 01521 a stationary terminalin one of the circuits,

a movable terminal. common to all the circuits, and a yielding terminalin a second of said circuits interposed between said stationary and movable terminals, means for auto#- matically actuating said movable terminal. from av distant station, means for limiting the movement thereof whereby said-movable terminal may be permitted to engage the yielding terminal and thereby close one of said circuits, or by additional movement, cause the engagement of said yielding and stationary terminals and thereby close an additional circuit, substantially as specified. 3. In a device as described, the combina-.

'tionwith a plurality of electric circuits, of

a stationary terminal, a movable terminal carried on an oscillating lever, an electromagnet adapted to oscillate said lever, amovable stop member adapted to arrest the oscillation of the-lever in predetermined positions. means for varying said stop membcr wheroby the lever will be permitted different, degrees of movement. a yielding ter- 125 nlinalinterposed between the movable and stationary terminals and adapted to be engaged by the movable terminal and upon further moven'lent thereof to engage the star t-ionary terminal substantially as specified.

4:. Ina device as described, the combination with a plurality of electric circuits, of

a stationary terminal, a movable terminal and a yieldlng terminal interposed between theist'ationary and movable terminals with which the movable terminal is normally in contact, a controlling device for said movable terminal adapted upon its initial move-' ment to break the contact of the movable and yielding'terminals and upon a predetermined additional movement to permit the simultaneous intere'ngagement of all three of saidterminals, substantially as specified.

ated by the subscriber rendering the andbrea'k vdevices,

' a series'of'separate lIlCllldll'lgf fln oscillating lever,

, arresting-the oscillation 5.1 In a device as described, a plurality of'electric circuits, circuit make and break mechanism therefor opstation, means open for arresting the operation of the control mechanism and mainmechanism, control I erated from a distant 'taining the instrument in normal condition while permitting other instruments on the common line to be controlled thereby, and means operated from a. distant station for subscr'ibers arresting device ineffective, substantially as specified.

- 6;:Irifia device as described, circuit make mechanism operated electric impulses and means for lever at thefor comprising step-up of the will of the subscriberand thereby renderm r the {stepmp mechanism in-operative, an

' means,controlled from adistant point'for releasing the lever from the control of the subscriber,substantially as specified.

" '2. In a device as described, circuitmake and break devices, control mechanism therefor comprising step-up mechanism operate by a ser es of separate electric impulses meluding anoscillating-lever, a movable stop oscillated from its member normally out of the path of the lever but, capable of being moved into said path by the subscriberpthereby rendering the si e -up-mechanism iii-operative an maintaining the instrument in normal condition, substantially-as specified,

8-. In a device as described, circuit make and break devices, including an oscillatory notched sector, a pawl successively engaging the notches thereof to oscillate said sector, a n electromagnet and an armature cooperating there- Wltll to actuate said control mechanism there-' a magnet, substantially as specified;

,and break. devices, control devices therefor iincluding a movable member having a series io-f ratchet teeth therein, a pawl engaging {said ratchet teeth to advance said member ;through a magnet-and an armature cooperating therewith to actuate said pawl, a polarized armature movable into and out of the path of the actuating armature according to the dij-rection of current net, means for. manually moving said polargizedarmature into the. path of the actuatd vthereby preventing the oscillation of the control devices therefor 4 v and break devices} including a ,electromagnet and an armature ingtherewith to v iized armature movable into andi cut of the,

maintaining i said reciprocating 1 member Z v including a movable member having a series of ratchet teeth therein, a pawl engaging said ratchet teeth to advance said ,member through a predetermined path, an electromagnet and an ar mature coiiperating therewith to actuate said pawl, a detent' lever engaging the movablemember and maintaining it in its operated position, a polarized armature movable intoand out ofthe path of the actuating armature and adapted when actuated thereby to cause the withdrawal of the detentdeyen from said movable member, substantially as specified. i 10. In a device as described,circuit make and break devices, control devices therefor includingEa movablg member having a series of ratchet'teeth said ratchet teethl to advance said member through a predetermined path, an electromagnet and-an'armature cooperating there- 1 ,with to actuate said pauil, a true movable into and the actuating armature according to the ditherein, a pawl engaging polarized armaout' of the path of rection of current through said electromag-= net, means for manually movmg sa d polar ized armature into, the path of the actuating armature against the mfluence of said 11. In a device as described, circultmake predetermined path, an electrothrough said electromag ling armature against the influence of said magnet, and for maintaining the polarized armature immovable in its adjusted position,

actuating armature and rendering the actuating pawl 1n-operat1ve, substantially as specified;

, 12. In a deizice as described, circuit: make pathof the actuating armatureaccordingi tothe direction of current through said electromagnet, a manually ,operated recip- 1 "rocating member adapted to engage the polarized armature and move it into the path ot theactuat-ingarmature against the influence of the electromagnet', a portionr'on projecting into control devices therefor..:,1;1

through a predetermined path f'an A the path of the polarized armature 'andpreventing the oscillation thereof when en gaged by the actuating armature-, substan- .tially as I specified" 4 13: In a'device as described, circuit make.

and break device s, control devices therefor includlng a movable member having a se ries ofratchet'teeththerein, a pawlengaging said ratchet teeth-to advance said memberthrough a predetermined path, an electromagnet and an armature cooperating therewith to actuate said pawl, a doubly pivoted polarized. armature capable of an oscillatory movement-i into and out, ofthe path of the actuating armature, andwhen in the pat-h of'said armature capable of oscillatory movement in unison therewith, substantially as specified. 14. In a device as described, circuit make and break devices, control'd'evices therefor including a movable member having a series of ratchet .teeth therein, a pawlengag- 1 turn thereof so moved adapted to cause the release of the control mechanism and permit the reto' normal, substantially: as specified. v I

15. In a device .as described, circuit make and break'devices, control devices therefo-r including a movable member having a serics of ratchet teeth therein, a pawl engaging sa'id ratchet teeth to advance said member through a predetermined path,'an el ectro magnet and an armature cooperating therewith to actuate said pawl, a polarized armature movable into and out of the path of the actuating armature and further capable of movement in a-plan'e at substantially right angles to the first movement, and

manually operated means to prevent the secend movement thereof, substantially as and for thepurpose specified.

, 16."-In a device as described, circuit make and break devices, control devices therefor including a movable member having a se ries of ratchet teeth therein, a pawl engagingsaidratchet teeth to advance said member through a predetermined. path, an electromagnet and an armature cooperating therewith to, actuate said pawl, manually operated means for arresting and maintaining..sa1dpawl in inoperative condition against the influence of the electromagnet,

substantially as specified.

l7. Ina device as described," the combination with a plurality of electric circuits, of a controlling device therefor comprising a movits relation to static ary or more of said circuits according to the point of said stop member engaged by the lever, and meansto vary the said stop member, substantially as specified.

\ 18. In a device asdescribed, the combination with a plurality of electric circuits, of

a controlling device therefor, comprising an oscillatingsector having points thereon at different. distances from the axis, a pivoted.

lever, a m va-ble terminal carried by said lever, means on said lever engaging said sector, whereby said, leverv will be varied in parts of the device asthe eng'agemenho said lever with said sector is-at a point of\%reater or less distance from the axis where said movable terminal will be caused lZOmClOSG one or more of said electric circuits oitnvhereby said circuits will be maintaine topen according to the point of said sector engaged by the lever, substantially as specified.

19. In a deviceas described, a plurality of electric circuits, a pivoted lever, a movable terminal carried by said lever, means for oscillating said 1ever,a variable stop for the lever comprising. an oscillating sector,

means for varying said stop whereby said lever may be oscillated to a greater or less degree thereby maintaining said electric circuits open or'olosing one or more of said circuits according to the degree of oscillation permitted the lever by said variable stop, substantially as specified.

2O. In a device as described, a plurality of electric circuits, a pivoted lever, a'movable terminal carried by said lever, means for oscillating saidlever, a variable stop to limit the oscillations of the lever in one direction comprising a pivoted sector having portions thereon engaged by said lever at different distances fromthe pivotal point thereby permitting said lever to oscillate throughout a greater or less degree and means to bring the different portions of said sector to the engaging point whereby said movable terminal carried by the lever will close one or more of circuits ormaintain said circuitsin open condition according to the portion of the stop engaged, substantially as specified. l

21. In a, device as described, a plurality of electric circuits, means tomake and break said circuits includinga pivoted lever, a movable terminal carried by said lever, an oscillating sector adapted to limit the movement of said lever, engaging oints on said sectorat different distances mm the axis sector and pivoted lever, substantiailyas cults open according to the degree of such" oscillation, and. means to oscillate both said specified.

22. In a device as described, circu t make and break devices, a pivoted lei er controlling said devices, an electromagnet and an armature adapted to oscillate said pivoted lever through the attraction of said armature by the magnet, and a polarized armature adapted to limit the oscillation of said lever, said polarized armature being movable into and out of operative posit1on according tothe direction of current through said magnet. v

23. In a device asdescribed, circuit make and break devices, a pivoted lever controlling said devices, an electromagnet and an armature adapted to oscillate said pivoted lever through the attraction of said arma-- ture by the magnet, and a polarized armature adapted to limit the oscillation of said lever, said polarized armature being movable into and outv of operative position according to the direction of current through said magnet, andmeans to manually move said polarized armature into operative position against the influence of the magnet.

'24. In a device as described, circuit make and break devices, a pivoted lever controlling said devices, an electromagnet and an armature adapted to oscillate said pivoted lever through the attraction of said armature 'by the magnet, and a stop member manually movable into the path of the lever to prevent the oscillation thereof under the influence of the magnet, substantially as specified.

25. In a device as described, circuit-make and break devices, a pivoted lever controL ling said devices, an electromagnet and an armature adapted to oscillate said pivoted lever through the attraction of said armature by the magnet, manually operated means to-prevei'it the oscillation of the pivoted lever against the influence. of the magnet, and means whereby the said manually operated means willbe rendered inefiective and the pivoted lever releasedby'areversal of the current through the magnet.

- 26-pin adevi'ce as describedpcircuit make and break devices, a pivoted lever controlling. said devices, an electromagnet and an armature adapted to oscillate-said pivoted lever through the attraction of said armature by the magnet, a stop member movable into engagement with said lever and adapted to be moved therefrom. by the influence of said magnet.

la a devi e as de bed, an el m-ri circuit, circuit make and break devices, controlling means therefor, an electromagnet and an. armature actuating said control devices, manually operated means for maintaming the control devices inoperatlve against the influence of the magnet, and electrically operated means for rendering said turning the control devices to operation.

, 28. Ina device as described, an electric circuit, circuit make and break'devices, controlling means therefor, an electromagnet and an immature actuating said control devices,jmanually operated means for maintaining the control devices inoperative against the influence of the magnet, and means, whereby said manually operated means will be rendered inefiective and the control devices released by a reversal of the direction of the current through said magnet.

29. In a device as described, circuit make and break devices, a pivoted lever controlling said devices, an electromagnet and an armature adapted to oscillate said pivoted lever through the attraction of said armatu're by the magnet, a stop member movable into engagement with said lever and adapted to be moved therefrom'by the influence of said magnet, and an electric switch in said circuit opened by the operation of said manually operatedmeans. v

30. In a signaling apparatus, circuit make and break devices, a variable stop member, a movable member the movement of which is limited by said stop member, said movable member being adapted by its movement to actuate the stop member through a predetermined path of travel until the stop member reaches a predetermined position when themovable member will be permitted a greater degree of movement whereby it will cperate the circuit make and break devices.

31. In a si nalin a aratus circuit make and break devices, a. movable operating operating member an additional degree or" movement when the stop member has been such additional degree of movement will operate-the make and break devices.

32. In a signaling apparatus, a talking circuit, make and break devices in said circuit, control mechanism for said make and break devices operated from a distant station, a manually operated stop adapted to positively lock the make and'break devices against movement thereby neutralizing he manually operated means ineffective and removed to a predetermined position whereby distant operation of the control mechanism In testimony whereof, I have hereunto set and lc frevlfnting the o ialeration of the make my hand this 12th day of April A. D. 1909. and tea devices of t e neutralized instru- 1- ment While the make and break devices of DANIEL KNEISLY' the talking circuits of other instruments on Witnesses: the comrnon line are controlled by the dis- HARRY F. NOLAN, tantoperation. j MABEL B. CARR.

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