US831526A - Signaling apparatus. - Google Patents

Description

110.831,526. PATBNTED SEPT.18, 1906. H. 0.11UGH. SIGNALING APPARATUS.

APPLICATION FILED JAILB, 1904.

A A Afa/Z1.

which the followingis a ful, c

' UNITED STATES PATENT OFFICE.

HARRY O. RUGH, OF CHICAGO, ILLINO] H, ASSIGNOR TO WESTERN TELEGRAPHONE COMPANY, OF MINNEAPOLlS,.MINNESOTA, A CORPORATION OF SOUTH DAKOTA.

SIGNALING APPARATUS.

Specification of Letters PatentY Patented Sept. 18. 1906.

Application led January 8, 1904.. Serial No. 188.210.

To au whom it may concern.-

Be it known that I, HARRY O. RUGH, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Si alin Apparatush of ear, concise, and exact description, reference being had to the accompanying drawing, forming a part vof this specification.

a 'My invention relates tovsignaling apparatus and systems.

In accordance with one feature of my in- .vention I employ a relay having a polarized armature in combination with a suitable source of signaling-current for polarizing the relay alternately, thereby effectin the operation of the -armatureandf a signa -producing device governed by the armature. The re ay preferably presents two poles to the armature, the winding of the relay being such that thesepoles are of unlike sign, so that when alternating current is impressed upon the relay each pole alternates in sign, the armature being at such times continuously vibrating out -of operative contact with the unlike oles or contacts desirably associated therewith when a source of high-frequency calling-current isl employed. I preferably so arrange the apparatus that when such calling-current is not impressed upon the relay a signal controlled b f the armature will remain quiet, while when such calling-current is impressed u on the relay the armature will effect the pro uction of signals owing to its ra id vibration.

n the preferred embodiment of my invention I employ a subsidiary or secondary signaling-circuit desirably having one terminal in the aforesaid armature and the other terminal in the frame of the said relay, the armature being adap'ted for electrical connection with one or the other of the said poles that desirably serves to normally complete the said subsidiary circuit. There is desirably included in the said subsidiary circuit a signal-producing electromagnet, such as the magnet of an ordinary make-and-break direct-[current vibrating bell. This subsidiary circuit desirably includes a closed-circuit battery, the signalproducing'magnct being thus normall. energized when the apparatus is idle. hen the apparatus is started in operation during the presencev of high-frequency calling-current upon the main signaling-circuit, the subsidiary circuit is broken at the armature of the relay, they armature then being out of operative electrical contact with both of the poles, an ormake-and-break circuit being then estab ished about the signal-producing electromagnet which istcaused to effect a signal,

f such as the sound of the bell.

In the preferred embodiment of my invention the relay-armature is `desirably of soft iron and is itself not materially magnetized permanently. The permanent magnet is,

or otherwise movably mounted for t e pul-,

pose of this adjustment. By this means all mechanical adjustment of the rela Y-arIna ture may be avoided. vThis form ofs relayI believe to be novel with ine, and in it I prefer to employ two poles between which the armature is dis osed; but I do not Wish to be limited in all) embodiments of the invention to a relay wherein this disposition of the armature is effected.

The device of my invention is adapted for a wi'de variety of uses and is particularly serviceable in connection with com osito telephony-and tele raphy, though it 1s not to be restricted to tIii's use. A

I will explain my invention more fully by reference to the accompanying drawing, which illustrates one type of apparatus designed in accordance with the invention.

I have indicated a main signaling-conductor a, that may have included therewith a suitable source of calling-current b, located at th' station from which signals are being sent, which signaling-current is desirably a high-frequency alternating current, particularly where the invention is adapted for use 'in systems of composite telephony and telegra hy, there being indicated a circuit-closer c 'or the purpose of associating the source of calling-current with the said circuit.- The said circuit includes the winding of a relay d, located at the signal-receiving station, this winding being desirably divided into two IOS - 3o cuit lis opened., This secondalf'y t? l 5o connection wit coils e and f, that are placed about the cores g \and h, which are desirably of soft iron and A '/preferablyunited at their heel portions by a soft-iron yoke i, the magnetic circuit being 5 complete save fora slight space between the inner ends of the cores g and h, which 'cores4 iare preferably placedv in axial ahnement.

L'lhe coils are so vrelatively disposed or Wound that when current 'is passed through the same o''in a given direction the adjacent poles ofthe cores g and h are of unlike' sign. The swlngingI/armature 7c, anchored at 'one end and su stantiallyiree at the other, is polarized and'isv normally desirably electrically coni v15 nected with one or the other ofthe poles' of -the cores g and' h,f the poles being desirably v provided with platinum contacts, as is the v"armature, it being assumed that? the armature is interposed between 'the zo The armature is thus desirab x normally maintain the ysubsidiary or secondary signaling-circuiti closedn The terminals of this secondary circuit reside. in the armature and desirably in a contact carried 2 5 by the 'core or cores of the relay. When signailing-current is-passed over the main. signaling-zcircuit, the armature is moved out of operative c ontactywith the frame of the re- `lay., whereupon the seconda signaling-cireircuit inf cludes av signal `presenting ore tromagnet sm, which this instance controls a signalhih the forni of a. gong n, the arl matureI ofthe magnet carrying a clapper o 315 for-striking the gong. "The same armature -also carries a contact-spring p, that has a back contact g, the contacts and g, with their connections rand s,-esta lishing a tertiary signaling-circuit that is brought into ac- 4o tion when the secondary circuit is open at the armature 7c, the battery t being desirably common to both the secondary and tertiary circuits. 'As long as the armature 7c is in open circuit; which is during the resence of suitable signaling-current upon t e line, the si aling-magne'tm will remain in operation ter the manner of an ordinary vibrating v e When the ap aratus is to be employed in composite telephone and telegraph lines, the signaling-current that is most desirably employed is' one of high frequency. I have indicateda line t-, that may serve to carry both telephonie and telegraphic currents; but I have not deemed an illustration of the apparatus to be used upon such a line for these purposes to be essential to an understanding of my present invention.

The permanent magnet v serves to polar- 6o ize the armature ci the relay. 'lhismagnet permanently polarizes the armature and is made.-v adjusta le, S0 that the strength of the coaction between the relay-poles and armature may be regulated.

' 655s. It will be seen thatllihave provided a relay pair oi poles. v

y caused to v cting elecwhereinA the 'armature is subject to the adjustin of the relay-poles'and the armature.

It is obvious .that changes may be made in the a paratus I haveherein disclosed without e arting from the spirit of my invention. II do not, therefore, wish to be limited to the precise meehanism'and circuits illustrated; but, y u

vHaving 'thus described my invention, 'I

influence of fa magnet Without thel necessity of modifyingthe physical relations claim as new and desire to secureby Letters Patent- 1. The combination with a relay havln two op osed polar portions and provide With-co1 s wound to secure'in said polar pory. tions polarities-of unlike sign and having a vermanently-polarized armature inter7 osed between the same, of a source of hig -freuency current in circuit with said coils to simultaneously cause in said polar portions polarities of unlike sign, signal-producing means controlled by the armature and a subsidiary signaling-circuit placed in one operative condition by the armature when it is idle and attracted toward one or the other of the said poles and placed in an alternativelyoperative conditionl When the armature is alternately attracted by said poles, substantially as described.

2. The combination with a relay having two opposed soft-iron olar portions and provided With coils Woun to secure in said polar portions polarities oi unlike sign and having 'a permanently-polarized armature interposed between the same, of a source of highfrequency current in circuit with said coils to simultaneously cause in said polar portions polarities of unlike sign, signal -producing means controlled by the armature and a subsidiary signaling-circuit placed in one operative condition by the armature when 1t is IOO idle and attracted toward one or the other of j thesaid poles and placed in an alternativelyoperative condition when the armature is alternately attracted bythe poles, substantially as described.

3. The combination With a relay-having two opposed polar portions and provided With coils Wound to secure in said polar portions polarities of unlike sign and having a permanently-polarized armature interposed between the same, of a source of highre' uency ,eurrent'in circuit with said coils to simultaneously cause in said polar portions polarities of unlike sign, vsignal-producing means controlled by the armature, a subsidiary signaling-circuit placed in one operative condition by the armature when it is idle and attracted toward one or the other of the said polesv and placed in an alternatively- ,f

operative condition when the armature is alternately attracted bythe poles, and an adjusting-magnet for polarizing the armature, substantially as described.

- justing-mavnet for I the said poles and .4. The combination with a relayhaving two opposedsoft-ironiolar portions and provided with coils woun to secure in said polar portions polarities of unlike sig'nrand having a permanently-polarized amature interposed between the same, of a source of highequency current in circuit with said coils to simultaneously cause in said polar portions polarities of unlike sign, signal-producing means controlled by the amature, a subsidiary signaling-circuit placed in one operative condition by the armature when it is idle and attracted toward one orthe other of placed in an alternativelyoperative condition when the armature is alternately attracted by the poles, and an adpolarizing the armature, substantially as described.

5. The combination with a relay havin two opposed polar portions and provide with coils wound to secure in said polar portions polarities of unlike sign and having a permanently-polarized armature inte osed etween the same, of a source ofghig -frcquency current in circuit with said coils to simultaneously cause in said polar portions polarities of unlike sign, signal-producing means controlled by the armature, a subsidiary signaling-circuit placed in one operative condition by the armature when it i's idle and attracted toward one or the other of the said polos and placed in an alternativelyoperative condition when the armature is alternately attracted by the poles, and a permanent adjusting-magnet for polarizing the armature, substantially as described.

6. The combination with a relay having two opposed soft-iron olar porti ons and provided with coils wound) to secure in said polar portions polarities of unlike sign and having a permanently-polarized armature interposed between the same, of a source of highfrequency current in circuit'with said coils to simultaneously 'cause in said polar portions polarities of unlike sign, signal-producing means controlled by the armature, a subsidiary signaling-circuit placed in one operative condition by the armature when it is idle and attracted toward one or the other of the said poles and placed in an alternativelyoperative condition when the armature is alternatelv attracted by thevpoles, and-a permanent adjusting-magnet for polarizing thc cause in said polar portions polarities of;un-'

like sign, signal-producing means controlled by the armature and a normally closed slubsidiary signaling-circuit placed in one o erative condition by'the armature when it is idle and attracted toward one or the other of the said poles and placed in an 4alternativelyoperative condition when .the armatureiis alternately attracted by the poles, said armature controlling one termina of the signalingcircuit, the other terminal of the circuit being duplicated, one or the other of the duplicated terminals being normally connected with the terminal controlled by the armature.

8. The combination with a relay having two opposed soft-iron olar portions and provided with coils wound) portions polaritics'of unlike sign and having a polarized armature interposed between the same, of a source of high-frequency current adapted for inclusion in licircuit with said coils to simultaneously causein said polar portions polarities of unlike sign, signal-producing meansv controlled bv and a normally lclosed subsidiary si nalingcircuit placed in one operative condition by the armature when it is idle and attracted toward one or the other of the said poles and placed in an alternatively-operative condition when the armature is alternately Aattracted by the poles, said armature controlling one terminal ofthe signaling-circuit, the other terminal of the circuit beingduplicated, one or the other being normally connected with the terminal controlledby the armature.

' In wit-ness whereof I hereunto subscribe my name this 14th da of March, A. D. 1903.

' ARRY O. RUGH.

Witnesses GEORGE L.CRAGG, JEssIE L. Davis.

to secure in said polar the armature.

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