US1133786A - Multiple-contact relay. - Google Patents

Description

G. BABOOCK.

MULTIPLE CONTACT RELAY.

APPLICATION FILED SEPT.21,1912.

1,1 33,786. Patented Mar. 30, 1915.

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G.- EABCOOK.

MULTIPLE CONTACT RELAY.

APPLICATION TILED $32121, 1912. Y

1,1 33,786. Patented Mar. 30, 1915.

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G BABCOGK. MULTIPLE ooumcw RELAY.

APPLICATION FILED SIEIIT.21A 1912 1,1 33,786, Patem'xed Mar. 80, 191-5.

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UNITED STATES OFFICE.

GABRIS'ON BABCOC'K, OF ROCHESTER, NEW YG'EK. BY MESNE ASSIGNMENTS,

- TO FKEDERZCK C. "STEVENS, OF AKTICA, HEX

MULTIPLE-GONTACT RELAY.

Specification of Letters Eateat.

Itatentetl Mar. 30, 1915.

To all 11: om it may, Bower-n:

Be it known that l. (lanzusox Bane/out, citizen of the United States. residing at Rochester. in the county of Monroe and. State of New York. have inrentecl Certain new and useful linproreinents in Multiple (outact Relays. of which the following is a specification.

My invention relates to imprmements in inultiplwcontact relays. and has for its ob ject the })l()\'l. .)ll of a relay device. which will combine a maximum etlieienov. certainty of operation and extreme connactness. whereby a relatively large number of electriea l. circuits may be o'penen or closed simultaneonsly.

My invention particularly applicable for use in automatic or semiautomatic telephone systems. wherein certain groups or units of contacts must be frequently made and broken uncler severe o 'ierating conclit-ions.

My relay (lerice in its seven embodimerits. heretofore produeeifl l..,i; ne(l for use, and insures satisiactory servit until-r the cornlitions mentioned.

Describing in a preliminary \rlv the salient features oil my unproremen the same consists of an actuating electro-n'iagnet. or a plurality' of such magnets acting together for the purpose of altering the elee triral condition of associated. paired Contact springs, eat-l1 pair forming one terminal ol the controlled circuit. These spring are mounted closely together in paired rel: .ion upon eil e. preterahlv staggered in two liurizontal Pl'rll'lifl. "the vials of the paired springs prob ably are (lixnrgentlv bent. anil beneath the diverging enils there are respectively positional the opposingcircuit ierurinals comprising partially llatteneil wires, which are similarly staggered in a common insulating mounting trip, aetuated. through the agency of the electi o-maguet or magnets. Obviously. these circuit-terminals may nor anally he llt'ltl in engagement or out of contact. ill-pending upon the character of. the circuits to he ontrolled. and the groups of springs and ('OZIJ-llllff terminals may he assenilileil in accorrlan a it'll the (lo-area uun'ilier ol' rouia sts to he nnule or lHOlitll, since runzpart erlgewise lllll Sl'HJ Pl'Ml.KHOUUL 1. a \'i W in side elevation of a orealtingr. reiav rleviee embodying my imp winents. Fig. 2, a similar View a circuit making! relay-device. F 3. is an underside rim anal Fig. 3 isia cross sectional e assembling strap for se terminals and insulating Jell within the relay. Fig.

girartiallr broken snay, of the i i i. Fig. 5. is an end.

2. Fig. 6, is 6 is a frag- 6 is a fragview: all upon an enlarged scale. filifflhlg two contact springs and their assoeii'rril I :lfillltll. Fig. 7, shows a side and entl View respectively of one of the ininginounting blocks for llllll enacting terminal. Fig. 1 a time unit multiple (Ol'ltElCt my in'iprorenients. Fig.

l an eruil view -.tivel Show Hzfil anti end naming the springs and terll'zl"ll'ltilllll)-' portions therein. l sirle elevation. and partially in section showing a sin 'le electroniagnct adapted for the actuation of my improved multiple contact relay. Fig. 2 shows an extension. pole-piece thereof in side and end elevations. Fig. 3", shows side and top elevations of the spacing-member and mounting screw for tl. (la lro -rnagnet. Fig. l". is iile view ol the single-magnet, rrmltiplewonaart relay eniomlying my imnrorenients. Fig. 5 is an enlarged detail of view or a l rag in menta ry menial";

iniuars Fig. 1. l1:

rgeeyse one of the flattened Wire terminals preferably em )loyed in my relay. Fig. is an enlarged detail partially broken of one set or contact springs and F 1g. '2'", is a fragmentary section showing the mounting of a. group of springs-end'contaet termin-ale within a snitahle insulating cement.

. p see.

'lhronghentthe several figures of the drawings; 1 have employed the serne ehamcter of reference to indicate similar parts.

. It will he observed that in the different types of relays thus far developed along the lines of my invention, that the general reletion of the magnet or magnets, the springs, the coacting terminals, and their ac taunting parts is substantially identical. In the tyne of cimuit breeking relay, of course, action of the armature is for the purpose of separating the normally closed contacts thereof, while said contact parts may more conveniently mounted beneath, instead ofabove the nets.

1 will first explain my improvements as embodied in the oireuitqnalaing relay of .Figs. 2- end 5, and detail the diiferences appeering in the other relays, as in particular the preferred singlemngnet relay, of Figs 1' end 4 es representing the most eflicient, simple and compact type for many pur- The magnet frame (5 supports the two electro-rnagnets I) b, partially inclowd beneath said frame. The ermatures a c are of the bell-crank type, and are united for concerted action by the strap 05. The longer arms of the bell-crank lovers 0' lie upon the top of the frame; being substantially eo-extenslve in length with the electro-magnets. The paired contact springs e and their 00- acting terminals f are reerwardly secured Within the composite mounting strip; the former preferably being in staggered reletion. Somethirty one pairs of springs are shown in "full size by Fig. 5 of the drawings. These springs are of riecnlier rectangular form, and are mounted upon edge with the rectsngnlarly extending ends thereof, sliglii'tly tiered or divergently bent, respectively to engage the enacting terminals. Somewhat the same result of a. staggered mounting for the springs, may he obtained by employing alternating paired springs having longer and shorter rectangular extensions, as indico ted in Fig. 7 The meeting; terminals are also of distinct-i '1 con struction being-formed of short it ths of Wire 1 tenet] approximately throughout one-ha t' to two-thirds of their lengths and reerwardly milled, or suitably roughened, as are the springs, in order to hold these parts more secmely 'Wltl'llll the composite mountstrip. These springs and terminals are capable of being very closely mounted edjncent to each other in the desired group-s, or substantially unitary structure, between the paired springs 6, While the top is cut by,

e groove '2' for the accommodation of the mounting strip This strip is shown in Fig. 3, with an interior rib j, which is adapted to be seated in the groove a" of the assembled insulating parts 2', is, Z, the latter being but partially grooved sincethey are designed for the spacing or terminal insulators only.

The requisite no tier of paired springs e and coacting terminals being assembled in groups, or otherwise, as indicated in Figs. 3 and 5, for example, and tightly compressed to insure the retention of the parts in place, the binding strip is positioned about the assembled insulators, springs and terminals, and the ends j thereof are passed tirougli openings out in frame a, and bent inwardly to secure the composite mounting strip in position upon the relay. Thewires forming the terminals 7 are then passed through staggered holes bored for their reception in the common actuating strip m of fiber or other insulating inhterial, which. strip m is secured at the ends of the lever erms'c. Thus the rounded cylindrical ends of sold terminals are held closely ad- ]acent to the staggered ends of their coacting paired springs, as best shown in Fig. 5;

the normal tension of the flattened Wires".

serving to maintain the terminals out of Contact, andzthe arrnatures in their normal positions, a. short distance from the cores of their respective eleotromagnets. Upon the excitzition of said magnets, the arms, tore-s will be instentlv attracted, thereby raising their extended ends ofthe attached nsulating strip m, and respectively 'engag mg the round Wire terminals f betweien their pznred springs e; the contact relatilin there oi being shown by the springs and. erminals t Fig. 4. staggering the divergent ends the springs in horizontal planfs, there is etforded no opportunity for short-circuitlng these closclyhssembled members, While all are accessible for inspecti 'gin, and adjustment in the relay as inounthd for giving service. Since the paired springs terminate one side of the circuit, while the Wire terminal forms the other side of said dircuit Within the relay, series contacts are avoided and an ellicient rubbing contact with relae'ly light pressure, is insured for the terminal, between ee' 1 springs. This member. moreover, is easily entered between the paired spring While the tension. of the fiat tened Wie, tendsto sephrete the terminal h uilording s cheap and etlicientasseinbinge for these parts. Instead of using the sepiirste fiber insulators, however, I also mount the springs and terminals in. suitnblj spaced relation, within a jig and embed the parts Witl'iiu an. insulating cement n, which takes the place of the fiber blocks and mounts the springs in equally close relation shown in 4 and 7 A cement of gum srabic, lava dust and plaster Paris be used, I

1e contact-breaking relay of Figs. 1 and s structurally the as the one already rilied, except as to those dC-llilllS/WlliCll L i it for opening a, plurality of nornuilly osed circuits, rod the pro ision of cement sulzited sin-ii o and terminals. In this the strip is mounted within :1 rec lair rolic 0 which :lCiUiitCtl by the relay :irinstures to raise suid strip against J tension or" the terminals 7" and open the 'orsl controlled circuits at the paired r'ng contacts 0. These terminals and springs are. positioned upon an extension 0,

v of the .t'i-zinie which mounts them in {-i plane hmow the electromsgnots.

l i- 'sr It, 2 and 3 :1 fire-unit mounting contncts is provided, controllable I ndi'z'ig number if t o elcotro rung u as sp and assoc-uteri ten minals are mounted in groups or four coasting sets, each cinitrolloble by its own armature, Othorivisc. the construction is identical with the relay of l igs. 3 and heretofore d :scribod The inoiiilicrl tr shown in l is n v utilizi the mount of springs, and torn'iinu previously :ioined, hut :1 single armature 1.1-" is prod for sc rimtion by i. elongate-d clrctro This is provided with extrusion Z9, titted upon the sore oi said magnet ud mspeotiveiy losing the cxtromi iios of the armature c" having their heads tapped to receive the screws r extending through frame a, are attached to the extensionpoles for securing elsotromagnut in position upon the relay. 'ypc of relay dcrelruvs it much higher tor given current consumption, uiiido the rc 'ously dose bud, and y nor to construct, tliun are the others, which recommends it for s 'iplicotious, to automatic or tolephony. The extension Scrow-bolts of The novel means for mounting the contact springs, provided in the inclosing strap having its ends clenched or suitably secured upon the opposite side 01' the frame, affords n simple and extremely cheap ()I1S."Hil011. It will be observed that the contact springs and the flattened portions of the terminals are mounted in different planes, at right angles to each other Within the insulation. These terminals serve to lock the separate insulating-parts against vertical movement, because of their engagement Within the two opposing grooves between each adjacent pair of insulating parts. Thus the usual intermed ate fastening-menus, Whenever a plurality of Contact springs and insulating parts are assembled in prior constructions, has been obviated by the interlocking festuros of the pr wont type of mounting. (lo-enter rigidity is insured by using ribbed inolosing strap for the assembled-parts The terminals 7" preferably are made of pl:osphor-bronzo wire cut to lengths corre sponding with the Contact springs. The flattened roar portions of these terminals, :i'l'lord soldering contacts for the wires, While the portions thereof intermediate of the insulating mountings of said terminals, constitute springs for restoring the armo lure, thus making the some self-restoring. Since th actuating insulator strip for the terminals is disposed reurwzirdly of the contuctmwlaing ends of the springs and tor minals, those parts are accessible for inspection and adjustment, while the relay is con nectcd for giving scrvice.

Having now described several types of relay cruisti'ncted in accordance with the principles of my invention, I claim as new and desire to secure by those Lrttcrs Patent, the following r 1. ln a relay device, thc romliinntion with a plurality of Contact sprin mounted in closely ndincmit \ori'ioul 3" 19s, of a plu it sourcing insuintors respectively poso id ping ends thereof are in staggered relation along said horizontal planes, and means controllable by the armature for altering the electrical relation of said springs, substantially as set forth.

3. In a relay device, the combination with an electromagnet and its actuating armature, of paired contact springs having dicombination with a plurality of rectangular paired contact springs having divergent ends; the said endsbeing disposed in staggered relation, coacting terminals positioned adjacent to said ends and adapted respectively to be actuated therebetwecn, an electromagnet, its armature and means governed by the armature for engaging and dis engaging the terminals between said contact springs, substantially as set forth.

5. In a relaydevice of the class described, the combination with an electro-magnet and its actuating armature, of a plurality of paired contact springs mounted on edge in a horizontal plane, a plurality of contact terminals mounted adjacent to the contactstaggered relation in a plurality of horizon tal planes, and means controllable by the armature for engaging and disengaging the respective terminals intermediate of the paired contact springs, substantially as set forth,

6. In a relay device of the class described, the combination with a plu ality of contact springs and their associate terminals, of a plurality of interposed spacing insulators, slotted upon their sides a accommodate said springs and terminalsj and along their tops to accommodate a binlzling-strap, said binding-strap inclosing gthe assembled springs and insulators; the same having a ribbed portion to engage: the top slots formed in said insulators, and adapted to hold them in their assembled relation against displacement, an electro-magnet, its

actuating armature, and means controllable.

thereby for altering the electrical condition of the springs and terminals, substantially as set forth.

7. In a relay device, the combination with an electro-magnet and its actuating armature, of a plurality of contact springs, an associated terminal comprising a wire flattened and rendered springdike throughout a portion of its length, whose rounded portion is adapted to be entered the contact springs, an insulating mountin for the springs and terminal at a distance rom their contact making portions, and means App T1 controllable by the armature lor engaging semiling member adapted to co'mpr and hold the parts firmly ainst dis, nent, attachingparts $116k" and means con trollable by the armatm electrical relation of l contact-melting members, substantially set forth.

9. In a relay device of the ole d..scrihed, the combination with. a plurality of paired contact springs, substantially rectangular in shape and having divergent ends arranged in staggered relation along horizontal planes, of a plurality of concting wire con tact terminals, an insulating member holding the contact making ends thereof in staggored relation, an electroniagnet, itsarmature, and means controllable by said armature for engaging and disengaging said terfor altering the .ininals intermediate of the rospectivd paired contact springs, substantialzl ivas set forth. making portions of the paired springs; said portions and terminals being disposed in 10. In a relay of the class described, the combination with a plurality of paired contact springs, of a plurality of coacting wire terminals adapted to be respectively flexed into engagement therewith, common insulating member mounting said terminals adiacent to their contactmial-ting portions, and adapted to hold them in relative posi tion With respect to the springs, an electro magnet and its bell ci'anlr r rnature; the free arm thereof lying paralle .ith said terminals and engaged by said insulating member, whereby said terminals are actushed and the armature is restored by the tension thereof, substantially as set forth.

11. In an electrical eontaehmaking de vice, the combination with an insulating mounting, of a plurality of contact springs mounted therein closely adjacent upon edge along a horizontal plane, a plurality of coacting spring contacts mounted fiotwise in a horizontal plane closely adjacent thereto, and means for altering the'electrical rela=- tion of said contacts,substantially as set forth.

12. In a device or" the class described, the combination with a plurality of insulating parts, of a plurality of contact springs and spring contacts mounted between said insslating parts; the insulated parts being grooved or channeled to mount one set of l loination with a plurality of CM contacts with the ooilies thereof positioned. planes at right angles to the other, inter mediate of the adjacent insulaing pari binding strap inclosing said insulatifl and contacts for securing their. olos I j gather against displacement. substantu. s

Set forth. I

I contact-making springs armature, plurality of mounting said SHlIi}jS they inolosing strap lirn'ily seen ancl insulatiz ends of said strap being pa: frame and secured upon the opp from the springs, sulismmialiy as so lortn lfl. In a relay (levies, ilie ooniliination with a. frame of a plurality of contact springs insulatinglv mounted 7 frame, nn'eloeiro- I at nnnnin il ugi oi'i Cllfii frame at right angles to said. rings an a distance from tlze'r free; i irinutui'e '25 controlling eoncaoz', 'iiisiiioneil parallel with said electri: also con trolling the Contact spring, L extension pole pieces extending from aitliv and of llllQ electro-magnet to insure a 31 all air-gap a ljacent to the ends of the armature. substantially-as set forth.

15. In a multiple oonlaol. relay. the tmilb v nation Witlin frame, of a Pllltlllii eontast springs there 11. a night-w e ect-romagnet. disposed at right ugfirs to said springs at a distance from bell "crank ari'naiure liarii 1 ing in a planev adjacent lo controlling their eletriml r. other arm disposal parallel magnet. and extension pole substantially the distance llilhiivi. net-core and the ends of llu: iuriuiurv. substantially as set forth.

16. In a nniliiple Contact relay. nation with a plurality of (,Oiil. I of a plurality of eoacting ininai's pOb-h tioned substantially parallel t'luzrew ili and adapted to be fiQKOLl intontael wit; said springs adjacent to ilie' respective ends, a common insulating strip inrlosiun .nul movabl v mounting said terminals rearwarblly of their plane of Contact Willi saii'l sprin eleeuro-inagnet and. its armature em with said insulating strip and all mate the terminals into an out ment with the s irings. siibstanliiuliy. forth.

rectangular in outline. of a pluiali .u co acting. terminals. an lIlSllltlilflQ' mounting rearwardly maintaining the same in two :25.-

jacent planes, a common insulaifinggstrip for "M the free ends of the terminals positioned rearwariily of the rectangular encls of the springs, an eleetro-magnet and its armature ooni'ieotsil with said strip for the actuation of the terminals into and out of engagement with the springs, substuntiall as set forth.

1%. in an electrical ronliaooniraking do vice, the eomliinalion .Yllli a plurality of srpni'aie insulating parts grooved in lWO different planes. of a plura spring mnlurts respectively mounted be tween said insulating parts and. interlocking the sums an illilOHi binding strap. and means for altering the electrical relation of the spring eontuots. substantially as set 1? In a inulliple contact relay. the combination \Vllli a plurality of Contact springs arranged in paired relation and upon edge. of a plurality of conoling' contact terminals osilionecl iiru plane sulistanl ll parallel ierewilli zinil :nluplied 1'i-.spo(:tivel lo lie .9 l =Serri0ailV into engagement between the paired contact springs. wlierelrv tlie latlei are horizontally flexed. and electroanug neiie means for actuating: said contaet ne ininals. substantially as set forth.

20. In. a multiple rontact: relay. the combination with a plurality of contact springs, rectangular in outline. and presenting opposed or paired ei'igaging leriu nuls. of a plurulity oi springlike Contact terminals positioned respectively to be engaged between said terminals. 'wl sreli urinal; may loo es- :zlvlislied between sprin respectively 1 exeil n planes at riglil. angk to each other, and eleCtro-ana"uetie mean for actuating tlie nonmel. pa. into and out of ongagemoni,

l1 substantially as set forth.

21. In a multiple eonla 4 liinalion with a frame. oi a plurality of contact springs iusulatingly mounted thereon, a

relay. the c0mrelay device. the combination lei-.ii'iii-inagnet and it angular {ariiial'u e. of a sup 'ioifinj frame upon which sziii'l aruuiiiu'e is rearn'urill "l. an insulating nuiunting rearwar upon the l ra ie arljaoenl to llie axis of said armature. o'l coasting conluctsnaliing members overlying 7 said armature and mounted by saifl insulation substantially parallel to the ungularly extended end, and aninsulat-ing iii'einber positioned rearwardly lit of ilaicenerl posilioneil of the engaging pol-Liens of said conmc'e makmg members and silpgertad by in extrennty of the ammture whereby aha (122' tact making members are fiexed. intu and eat In iamimsmy whereof 1 do new afiix. my s1 gmmre presence cf two wltmssss.

GAHEESGE BABCOCK,

Winesses

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