US754689A - Electrical selective apparatus. - Google Patents

Description

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Ikmrmr 'MW MW No;.'754,689. PATENTED MAR. 15, 1904. F. D. PEARNE Ac G. KRUM. ELECTRICAL SELECTIVE APPARATUS. APPLIQATIOH FILED FEB. a. 1902.

N0 MODEL.

I a I V X N-o.'754.s"89. PATENTED MAR. 15,1904. E. 1), PEARNE & c. E. KRUM. ELECTRICAL SELECTIVE APPARATUS.

APPLICATION FILED FEB.3. 1902. H0 MODEL. 3'SHEETS-SHE3T 3.

lie 7 A1 7% /5 1 tion on line 8 8 of Figs. 1 and 7. 4 diagrammatic view of the circuits.

UNITED STATES Patented March .15, 1904.

PATENT OFFICE.

FRANK I). PEARNE AND OHARLEs L. KRUM, OF CHICAGO, ILLINOIS, AssIeNoRs TO PEARNE ELECTRIC AND MANUFACTURING O MRANY, or OHIOAeO, ILLINOIS, A CORPORATION.

ELECTRICAL SELECTIVE APPARATUS- SPEGIFIGATIONfOrming part of Letters Patent No. 754,689, dated March 15, 1904. I Application filed Pebriiary 3, 1902. Serial No- 92,264. (No model.)

To all whom it may concern:

Be it known that we, FRA K D. PEARNE and CHARLEs L. K UM, citizens of the United States, and residents of Chicago, in the county of Cook and State of Illinois, have jointly invented certain new and useful Improvements in Electrical Selective Apparatus, of which the following is a full, clear, and exact descrip- .tion. I v The invention relates to the electrical select ive apparatus, and seeks to'provide a selective relay which will be extremely sensitive, positive and rapid in operation, and by which one of two or three branch circuits may be selected 5 or closed',-and to provide in conjunction therewith a magnetic lock arranged to hold the selected branch circuit in a closed condition.

. The improved apparatus is particularly designed to beone of several similar devices cated in a line-circuit and used to control a series of local branch circuits operating a set of signals, the separate parts of a printingtelegraph or electricaltype-writer, or other similar receiving devices.

"The invention consists in'the features set forth in the following description, illustrated in. the accompanying drawings, and more particularly pointed out in-the appended claims.

In the drawings, Figure 1 is a plan view of 3 the improved apparatus. Fig. 2 is a horizontal section on line 2 2 of Fig. 3. Fig. 3 is a side elevation, parts being broken away and ip'arts shown in section. Fig. 4 is a partial Y horizontal 'section on line 44 of Fig. 3. Fig. 355 is a vertical section on line ,5 5 of Fig. 3.

Fig. 6 is an enlarged detail section on line 6 6 of Fig. 1. Fig. 7 is a vertical section on line 7 7 of Fig. 1. Fig. 8 is a partial vertical see- Fig. 9 is a N ear one end of a base-board A are firmly securedthe uprights or corner-supports 10,

upon which is -fixed a top plate 11, of insulating-imaterial. The corner-supports 10 are preferably of brass, and each side pair is connected intermediate the ends of the supports by a side frame-bar 12, which is also of brass and preferablyjcast-or formed in one piece with. the connected corner-supports. Afieldmagnet B is secured in transverse position to a pair of central downwardly'projecting lugs 13 upon side bars 12. This field-magnet is formed of magnetsteel and its ends bent upwardly and then inwardly to form the polepieces 14 and 15, located in the same horizontal plane. The bar B is permanently magnetized, with the poles-14 and 15 of like polarity and with a central unlike pole-that is, if the central part of the bar (marked N) is the northpole the oppositely-facing ends (marked S) are south poles. An armature C, of soft iron, extends between and in line with the oppositely-dis'posed like poles 14 and 15 and is fixed to a vertically-disposed center pivot or spindle 16, the lower cone-shaped end of which is stepped or journaled within an opening formed in central position upon the top face of the field-magnet B and at its unlike pole. The spindle 16 extends upwardly through an opening in the top plate 11, and its upper coneshaped end is journaled within the end of a screw 17, which is adjustably threaded through a piece 18, of inverted,-Ushape, fixed to the upper face of plate. llandheld thereby some distance above the top plate..- A lock-nut 10 serves. to hold the bearing screw 17 in its proper adjusted position.

A head or block 20, of insulatingmaterial, is

fixed to the upper end of-spindle 16 intermediate the plate 11 and screw-bearing 17 and serves as a support for a metal .contact or switch arm D. Upon a block 21, of insulating material, fixed to the under side of top plate 11, are mounted three spring strips or contacts d, ii, and (P, which project upwardly through an opening 23 in top plate 11 and surround the end of the contact-arm D. Each of these spring-strips is-preferably brazed to or fixed in any suitable manner at its lower end to a spring-strip 24, which also projects upwardly through the opening 23 in the top plate. The upper ends of the spring-contacts 1d, d, and d are bent inwardly, as shown, and spaced apart from the upper ends of the springstrips 24, while a thumb-screw 25, adjustably gage the upper end of each of the springstrips 24. The contacts d, d, and 0Z v are thus threaded through a lug 26, is arranged to en yieldinglyand adjustably held in position,and the adjusting thumb-screws are situated at the upper portion of the apparatus, and thus are easily accessible.

With the arrangement of field-magnet and armature above described the lines of force will pass from the north pole of the ma, t through the lower portion of the spindle 10', in direct contact therewith, and then divide and pass in opposite directions through the armature C to the south poles 1e and 15. Armature (J is thus polarized by the magnetic actionpf the field-magnet B and held in normal central position in line-with the like poles lei and 15. So, also, the contact-arm Dis normally held in central position in engagement with the contact-spring d and out of engagement with the contact-springs d and By rocking the armature in one or the other d1- rection contact with spring d will be broken and contact made spring 02 I For rocking armature Q a pair of electromagnets E E are mounted upon. either side of the armature U and with their opposite pole-pieces respectivelyadjacent the opposite ends of the armature. Each of these actuating magnets is preferably formed of a single spool 22, transversely arranged between the side framepieces 12, and to the soft-iron cores 27 of which are swaged or otherwise firmly tired in. placethe pole-pi'eces 28, which project inwardly toward the armature C.

in order to adjust the sensitireness of the relay, the magnets are-movably supported between the side bars 12, the pole-pieces 28 being mounted-to slide in'slots or guideways "29, formed in the side-bars 12. To the ends oi each of the cores 2'6 oi the spools 22 are plnned or otherwise rigidly fixed in position the up wardly extending lng-pieces 30, througheach to and ne t veness of the relay thus quickly and accu-.

rately ad usted.

adiacent side pair of which are threaded the opposite ends of a right and left handed screw 31. Each of the screws 31 is held against longitudinal movement by a'centerlug 32 upon the'adjacent cross oar 12-, which extends between and engages a pair of collars 33 upon screw 31. Right and ieft hand screws 31 are of similar size and pitch and connected by a gear-chain 34, passing over a pair of sprockets 35, fixed to the outer ends of the screws, and one of the screws is provided, as shown, with an adjustingthumb nut 36. or poles of both of the actuating-magnets E E may be adjusted simultaneously and equably the armature U 'andthe sensi- Upon the opposite end of the'base-board A is secured by screws-37 an upright ti -shaped permanent field-magnet E, having inwardlyturnednnlike pole- pieces 38 and 39. A-crossstrip roger insulating ma erial, extends be e ni'e'ces dia -and pieces by the interposed blocks 4-1.

with either springd or a in one or the other direction.

By thismeans both ends 1 spring ct,

assess A binding-post 2 is secured in central position in the cross-strip i0, and to its lower end is fixed a yoke 13, in which is centrally pivoted an armature Gr, extending between the pole-pieces 38 and 390i the field-magnet E, so as to be held in normal central position by the attrac tion of the magnet.

- Metallic contact-pins 4A; and are adjustably threaded through metallic sleeves 4L6, fixed in the opposite ends of the insulatingstrip 40, the lower ends of the pins forming contact-points in position to be engaged, respectively, by the opposite ends of armature Gr when the latteris rocked in one or the other direction. A contact-pin L7, fixed centrally to the armature G and extending downwardly therefrom, normally engages a bent springcontact 48, which is fixed to a lug on a bind ing-post 49, mounted upon the base-board-A. An adjusting-screw for spring-contact 4:8 is threaded through a second lug on the hinding-post 4:9 and engages the springcontact, as shown.

Upon a brass piece 51, secured to the horizontal portion of magnet E, are fixed two separate electromagnets H H, arranged adjacent the opposite ends of armature G, so that by energizing one or the other of said magnets the armature may be rocked into en- 'gagement either with contact 44; or with contact 45, while the contact between pin 47 and spring 48 is broken.

At one end of base-board A in line with binding-post 49 are mounted the bindingposts 52, 53, 5e, 55, and 56, and at the opposite end of the base-board adjacent the relay are fixed thebinding- posts 57 and 58.

I In Fig. 9 the line-circuit may be traced by wire 59 to binding-post 57, by wire 60 to relaymagnet E, thence through the coil of this magnet and by wire 61 to the relay-magnet E, and through its coil and by wire 62 to binding-post 58, and from thence back by wire 63 over the line or to the next succeeding relay, if more than one are employed. Line impulses of the proper strength andoi opposite polarity will serve to move armature When the current passes in one-direction, one end of polar ized armature C will, for example, be attracted toward the adjacent poleof magnet E and re pelled by theadjacent pole of magnet E, while its opposite end is repeiled by the adjacent pole of magnet E and attracted by adjacent pole of magnet E and the armature rocked to I bring contact -arn1 D, against contact- When the line impulse passes in the reverse directiomthe effect of the relay-magnets E and E upon armature C will be the reverse of that I abore stated, and the armaturewill be rocked to bring contact-arm D into engagement with lit is thus obvious that t e E contact-spring 0Z ezi ects e. c

at a single station or located at a separate station and usedfor a variety of purposes. Each of these devices is includedinaseparate branch circuit, in this instance separate branch circuits of a battery K. In the nor mal position of armature (l of the relay the circuit from battery K is traced by wire 64 to binding-post 55', by wire 65 to contact-arm D,

thence by contact-spring dand wire 66 to binding-post 56 and by wire 67 to the next succeeding relay.

50 represents the return-wire to the battery. ,In the normal position of armature Gr a branch of battery K in this instance is closed through the member '1 of the receiv ing apparatus, as follows? By wire 64 andbranch wire 68 to aspring-held make-andbreak switch L, normally engaging a'contact 69, from thence by wire 70 tobindingpost 54, by wire 71 to binding-post {L2, thence by armature G and contact-pin 47 to contactspring 455, thence by binding-post 49 and wires 7 2, 7 3, and through thereceiving device I back to battery K.

' When the armatureC is rocked by a line impulse as describedfor example, against the contact dthe circuit from battery K is traced by wire 64 to binding-post 55, by wire to contact-arm I), bycontact d and wires 7 1 and 7 5 through the coilof'magnet H to binding post 52, thence by wires 76, 77, and 50 through receiving device I back to net H is thus energized, and the amature G,

' which responds to the slightest impulse passing through thebranch circuit, is rocked into engagement with contact t i and the contact between pin 47 and" spring 48 is broken. The branch circuit through the receiving member I is then closed through a shunt around the contact-arm D as follows: .from battery K by wires64s'and 68 to make-andbr'eak switch L, by contact 69,'wire 7 0 to binding-post 54.1,

by wire 71 and binding-post 42 to armature Gr, by contact 44 and wires 78 and 7 4 through the coil of magnet H, thence by wires 7 5 to bind ing-post 52 and by wires 76, 77,'and 50 through the receivingdevice I back to battery K;

When the lineimpulses ofopposite polarity rock armature 'O'to bring contact-armD into engagement with the spring-contact 63 the branch circuit through receiving device I and locking-magnet His closed in a similar manner. The line impulses of opposite pobattery K. Maglarity thus operate through the medium of the sensitive relay to select one of two branch circuits, and the slightest impulse through the selected branch serves, through the medium of the locking-magnet H H,to hold said branch circuit'in a closed condition through the selected receiving device until broken at the make-and-break switch L. The latter may be actuated automatically'i'rom the separate receiving devices I and I or otherwise, as desired.

When the line impulses cease, armature C is at once returned to normal by field-magnet B and contact-arm D brought into engagement with spring d. The circuit from battery K is then closed at this point and through wires 66 and 67 to the next succeeding relay. hen the circuit through either of the controlled branch circuits is broken by the makeand break device L, the armature G is returned 'to normal byfield-magnet F. The apparatus is then in condition to be actuated by the next succeeding line impulse.

It will be understood that various changes may be made in the arrangement and construction of the variousfeatures without de' parture from the essentials of the invention.

Having thus described our invention, what.

we claim as new, and desire to secure by Letters Patent, is I 1. The combination with a line-circuit and with two independent, separate branch circuits, of a relay in said line-circuit, means controlled by said relay for closing either of said branch circuits, a pair of locking-magnets, one controlled by each of said branch circuits and a shunt around said circuit-controlling means arranged to be closed bytl'ie operation of said locking-magnets-through the selected branch circuit.

2. The combination with a line-circuit and with two independent, separate branch circuits, of a'polarized relay in said line-circuit comprising a pivoted armature having means for controlling said branch circuits, means for holding said armature in central position with both of said branch circuits open, means for rocking said armature in one or the other direction to close either of said branch circuits,

a locking-magnet in each of said branch circuits, means controlled by said locking-magnets and a shunt around said circuit-controlling means arranged to be closed through the selected branch circuit by said means.

3. The combination with. a line-circuit and with-"two independent, separate branch circuits, of a relay in said line-circuit comprising a permanent field-magnet, a pivoted armature held innormal central position thereby and means for rocking said armature in one or the other direction, a contact-arm controlled by said armature and normally held thereby out of engagement with the terminals of said separate branch circuits but arrahged to close either of the latter as said armature is rocked in one IIO.

or the other direction, a locking-magnet in each of said branch circuits, a common piveted'armature for said tion thereby and a shunt around said contactarm arranged to be closed through the selected branch circuit by the movement of said lockin -armature.

' said branch circuits,

4c. The combination with a line-circuit and with two separate independent branch circuits, ofa relay comprising a permanent fieldrnagnet having two like poles and one unlike pole, an armature extending in line with and normally held in central position between said like poles and. an electromagnet for rocking said'armature in one or the other direction, a

contact-arm controlled byfsaid relay-armature and normally held out of contact with the terminals of said branch circuits but arranged to close one or the other of the latter as said armature is moved, a locking-magnet in each of said branch circuits,

a shunt around said contact-arm arranged to be closed through the selected branch circuit by the movement ofsaid locking-armature.

5. The combination with a line-circuit and with two normally open branch circuitscontrolling receivingdeviceaof means coxitrolled by said line-circuit for closing either of saidbranch circuits, a locking-magnet in each' of said branch circuits'and a shunt arranged to be closed by said locking-magnets through theselected branch circuit.

6. The combination with a line-circuit and with two independent, normally'open branch circuits controlling separate receiving devices,

of a relay controlled by said line-circuit for closing either of said branch circuits, a pair of locking-magnets arranged side by side one in either of said branch circuits, at common centrally-pivoted armature arranged to be moved in one or the other direction by said locking-magnets and a shunt arranged to be closed by the movement of said armature through the selected branch circuit.

Y; The combination with a line-circuit and with two normally open branch circuits controlling separate receiving devices, of a relay in said line-circuit arranged to close either of a pair of locking-magnets arranged side by side, one in either of said branch circuits, common centrally-pivoted armature, a permanent field-magnet arranged to hold said armature in normal central-position and a shunt arrangedto be closed by said armature through the selected branch circuit when said armature is rocked in one or the other direction by theoperation of said loclring-magnets.

8. The combination with a line-circuit andwith-two independent, normally open branch circuitscontrollingseparate receivingdevices, of means controlled by-said line-circuit for closing either of said branch circuits, a pair locking-magnets, arranged to be rocked in one or the other d1recacommon centrally-piv- 'oted armature for said locking-magnets, and

of locking-magnets, one arranged in either of said branch circuits, a common plvoted armature normally held in central position, a thirdbranch circuit ccntrollinga third receiving device and a shunt controlled by said pivoted armature and norm ally closed thereby through said third branch circuit but arranged to be broken through said third branch and closed.

through either of the normally open branches 7 when said armature is rocked in one or theother direction by the operation of said locksaid relay, a pair of locking-magnets, one con 4 trolled by each of said branch circuits and shunt-circults around sald switch-contacts con-- trolled respectively by said locking-magnets.

' 11. The combination with a line-circuit and with two independent, separate branch. circuits, of a relay 1n said line-circuit, means operated by said relay for controliingsaid branch circuits, a pair of locking-magnets controlled.

respectively by said separate branch circuits,

a shunt around said circuit-controlling means having switch-contacts controlled by said locking-magnets and an unlocking-switchin said shunt.

12. The combination with a line-circuit and With two independent, separate branch. cir

cuits, of a relay in said line-circuit, means controlled by said relay for closing either of said branch circuits, a pair of locking-magnets con trolled respectively by said separate branch circuits, a shunt around said circuit-controlling means arranged to be closed by the operation of said locking-magnets through the selected branch circuit and unlocking switch in said shunt.

13. The combination with a line-circuit and 'with two independent, separate branch circuits, of a polarized relay in said line-circuit comprising sw tch-contacts for respectively controlling said separate branch circu1ts,a

locking-magnet in each of said branch circuits, a shunt-circuit around the switch-contacts of said relay, switch-contacts in said shunt-circuit controlled by said lochi11g-magnets and an unlocking-switch in said shuntcircuit.

FRANK PEARNE. CHARLES L. KRI'JM Witnesses:

.Annnnrn Anni/non,

Cmur V. HINES,

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