USRE12162E - Pole-changer - Google Patents

Description

No. 12,162. REISSUED OCT. 13,1903. W. F. WARNER.

- POLE CHANGER. AIPLIOATION- FILED DBO. 9.11902.

V a SHEETS-$111221 1,

c wvawtz l himmao William F.Wa.i-ner 12.102. REISSUED OCT. 13, 1903.

W; P. WARNER. POLE CHANGER.

APPLICATION FILED DEC. 9,1902v 3 SHEETS-SHEET 2.

gmmwboz WiJliamRWarner v QHMW REIS'SUED OCT. 13, 1903.

,W. F. WARNER.

POLE CHANGER. APPLIOATIOII Hun-mo. 9, 1902.

' Snow Wax William F.W8I1IGI WILLIAM F. WARNER, or MUNCIE Reissiied October 13, ieos.

PATENT OFFICE.

, INDIANA, ASSIGNOR TO E WARNER ELECTRIC COMPANY, OF MUN CIE, INDIANA.

POLE-CHANGER.

SPECIFICATION forming part of Reissued Letters Patent No. 12,162, dated October 13, 1903. Original No 685,887, dated November 5. 190i. Application for reissue filed December 9, 1902. Serial No- 134.688.

',To all whom it may concern: v I

. Be it known that LWIVLLIAM F.WARNER',,a' citizen of the United States, residing at Muncie, in the county of Delaware and State of 5 Indiana, have invented certain new and user f ul Improvements in Pole-Changers, of which the following is a specification. v My present invention relatesto a machine for alternating or changing the polarity of an to electric current which,'although capable of .use in many situations, particularly wherever electric signaling is to be done, is especially designed for use in connection with telephone-exchanges to furnish an alternating r 5 current of electricity with which to ring their I polarized bells, the current being derived from any appropriate source of electrical energy, such as suitable batteries. I The capabilities, objects,.and advantages, of my invention will-hereinafter appear. Said invention consists both in features of particular construction and arrangement and in the assemblage and combination of various electrical and mechanical devices whereby the advantageous results specified may beatlarly described and, claimed.

Referring to the accompanying drawings, which aremade a part hereof, and on which 3o.similar reference characters indicate similar parts, Figure 1 is a perspective View of a pole ch'anger embodying one form of my invention. Fig. 2 is a diagrammatic view showing particularly one suitable arrangement 5 of electrical circuits and connections in an apparatus-wherein my invention is employed; Fig. 3, a side elevation of the vibrating arm of such an apparatus and immediately-adjacentparts on a considerably-enlarged scale; n Fig. 4, a top. or plan view of said'ar'in and the adjacent parts, including substantially .the same features shown in Fig." 3; Fig. 5, a

horizontal sectional View as seen when-looktained, as will be hereinafter more particu;

ing' downwardly from the arrows, indicated" trical and moving parts.

one of the devices embodied in my apparatus l are mounted, such as supports for the elec= A post 22 is shown as a principal one of these supports, and upon 5.5 this I mount a vibrating arm 23, preferably using a thin metallic (and consequently flexi ble) connecting piece '24, which is firmly united to both the arm and to the post or support, (by screws or otherwise,) the arm itself being preferably formed of non-conducting material, so that the electrical parts attached or adjacent thereto maybe insulated. At or near the rear end of this arm 23 1s a contact member 25, which in the arrangement shown is electrically connected to the flexible'rnetallic portion 24 and is adapted as the arm vibrates to coinein contact with another contact member 26, which is carried on an arm 27, extending out from a post or-support 28. This contact member 26 is adjustable, its'ad- .just'inent being effected by means of a screw 29, the latter being held to adjusted position by a jam-nut 30. The support 27, 28 is connected to one, pole of a battery 31, and a wire '33 runs from the otherpole of said battery to an electromagnet 34, and said magnet isiconnected to. the support 22 by a. wire 35. An armature 36 to the magnet 34 is mounted on the ar'n'123 and is electricallyconnected to thecon- 8o tact member 25. By this arrangement it will be readily seen that Ihav'e' an ordinary circuitbreakerfor vibrating the arm. The course of the current is through the magnet 34, the wire 35-, the post 22, the flexible metallic connecting-piece 24, the contact members 25 and 26, and the support 27 28 to the battery. This acts to energize the magnet, moving the arm vto the left, but breaking the circuit, which causes the magnet to become inoperative, 9o whereupon the spring flexible connectingpiece24 moves the arm to the right, causing it to resume its normal position and restablishgthe circuit. Thismovement may continne indefinitely, thus enabling my device to 5 operate continuously, it desired. I have shown another battery 50 as'the source of electrical energy from which cp nes the continnous current, which by..means of my de.

vice is transformed into an alternating'current, and while I prefer tousesnch a battery on account of its convenience and low cost,

yet I desire it to be understood that any convenient form of primary or secondary battery or other suitable means for generating electrical current or source of electrical energy may be employed and that the term battery or batteries as used in this specithence to the support 22, passing to the arm 23 at or'near the point of least motion, and

' thence along said arm to where it is connect- .the arm 23.

ed to t hecontact memberoS. The means which I. have shown for securing the flexible'connectlug-piece 24 to the main post or support 22 consists of a block 20 of wood or other nonconducting material, which is held to said post or support by screws 19. As most plainly shown in Fig. 3, both the wires 51 and 55 run first to and are supported by this block and pass thence below and abovethe flexible metallic connecting-piece 24, and at a point be-. yond said connecting-piece are attached to They are thus completelyinsuv latcd from the metallic portion in a very con venient manner, although the particular method of leading these wires to the arm is not important so long as they are attached thereto at or near the point of least motion. As is also shown in the drawings, (best in Fig. 3,) these wires are formed in coils where they pass under and above the flexible metallic portion 2 L. This is a very simple way of providing, for taking up the slack in the wires due to the change of position as the arm vibrates. The flexibility of the wires will correspond with the flexibility of the flexible metallic portion of the arm,so as not tohindcr the vibration of the arm,while the wires are easily kept in proper position and fi ee from electrical contact with adjacent parts. This arrangement also (as the bending of any part of the wire in the coils is almost infinitesimal) obviates the dangerof crystallization and breaking of the wires in long-continued use.

The great advantage, however, of the particular arrangement of conducting the wires to thc=- arm is, as above statethdue to the fact that they are thus connected at substantially the point of least motion, while the motion at the point where the contact members are mounted on the arm may be made as great as is desired without being in any way limited or interfered with-bccause of the wire connections. The construction which I prefer for these contact members 53 and 58'is toform the V bodies thereof as a continuous screw-threaded rod passing through the arm and extending to the hell or annunciator 66.

shown four posts or supports 61, 62, 63, and

64. For purposes of convenience I will describe the arrangement of wiring shown in Fig. 2 in explaining the operation of changing the continuous current from the batteries to alternating currents. Referring now particularly to said Fig. 2, it will be seen that the posts 61 and 63 are connected together by branches of one wire 65, which extends through the switchboard in the central office and 64 are electrically connected .by branches ofanother wire 67, likewise leading to the switchboard in the central office, and thence to the hell or annunciator. Secured to each of the said four posts or supports is a plate or arm extending outwardly toward the contact members carried by the vibrating arm The posts 62.

23 and terminating in a flexible or yielding portion or brush. These arms for-purposes of convenience of construction are'shown in two parts, each arm being composed of the parts 68 and 69, the first of which in the form shown is comparatively stiff, while the latter is comparatively flexible. As in many, other particulars, however, this construction can be varied, as desired. These brushes or contact members are sulliciently fiexible so thatthey will yield considerably when the arm 23 is vibrating (see especially Fig. 4) and the contact members carried thereon come .in contact with the brushes. As the arm in the arrangement shown is intended to vibrate continuously, the importance of the yielding flexible brushes or platinum hearings will become apparent. The. yielding contact members reduce the friction to a minimum, making the device practically indestructible and one that will operate indefinitely without repairs.

The arrangement here spoken of is one of the important features of my invention. As has heretofore been stated, the arm 23 is cari'istl by a fixed support 22, which is a certain distance from the contactmembers now under discussion, a part of which is carried by said arm. The other contact members, as has just been described, are, in the construction shown, carried by the posts or supports 61, 62, 63, and 64, which are diiferently positioned relatively to the points of contact than the support for-the arm. Both the arm and the contacts not carried thereby being yield-. ing or movable, these ditlering points of support cause dilferent motions where the contact members engage, so that said contapt members slide one upon the other, producing contact members and v the positive, and that the contact member53- is connected to the negative pole of thesame battery, and assuming that the; arm 23 is moved to the left, thereb'y connecting the wire 65 to the positive pole and the wire 67 to the negative pole, a positive currentiwill besent to the, central office, thence through the bell or annunciator 66, returning through the wire 67. When the arm is moved to the right, making a connection with the supports 63 and 64:, the positive contact member 58 will connect with the wire 67, so that the direction of current will be reversed, passing tbroughtwire 67 to the central officeyfrom whenceit is sent to the 'ann'unciator or bell (36, and thence through the wires 65 to the contact member 53, thereby alternating the direction of currents in both wires 65 and 67 at each vibration of the arm. These wires are shown as running to ordinary binding- posts 71 and 72; but itis to be'unde'rstood that the wire 67 could be groundedin case it is desired, "Thesebindingposts, let it be understood, are thecircuit-terminals, so far as my device is concerned, as is plainly shown in Fig, 1, and the continuation of the circuit to the bell as indicated in Fig. 2,]is merely for the purpose of illustrating an apparatus operatively'complete. This particular arrange ment of posts,,brush'es, and wiring is, howard 81, resting on thebase 21.

ever, immaterial'so longas the positive pole is connected tofone" wire and the negative poleto the other wire when thearm is moved to one position and vice versa When1the arm is moved to the opposite position.

I, findit desirable in the use ofmy device to employ a condenser 75-to prevent spark ing and'also to prevent induction or noise in lines adjacentto those signaled over. The condenser is not normally electrical-lyin'c-lu-ded in the circuit embodying the wires '65 and 67,

but is automatically electrically connected by means of a relay when said wires are .connected' and in use and when so connected operates in the usual manner. One end of the condenser is connected by the wire 76 to the Wire 67, and the other-fend of the condenser.

is'con'nected, by means of a wire 77, to a me tallic post 78. The relay consists of a stand- The standard is connected to the wire 35 by means of a wire On top of the standard ispivoted an armature 83, to the forward portion of which is se'cu'reda spring contact-arm 84, which extends outover the post 78, but is normally out of contact therewith. 0n the other end I have made and used it.

of the armature is located an adjustable counterweight 85. Below thisend-of, the arma ture is a supporting-post 86', which can be varied in height by means of a screw 87 ,which is screwedinto the top of said post. As heretofore stated, the relayrmagnet 56 is included I in the oircuit'ofwhich the wire forms a part and which wire is connected to one of the poles of the signaling-battery. vWith this arrangement when a circuit 'is established through thewiresfidand 67 and the magnet 56 is energized by the circuit in-which it is. included said magnet will draw down the armature 83, so that the'spring 84will bear againstthe post 78, making acircuit through i the condenser, as will be clearly seen upon,

an'inspeetion of Fig. 2 of the drawings, the current first passing over the wire 67 to the -wire'76, through the condenser, and from the condenser through the wire 77, post 78, springarm 84, post 81, and wire 82 to the wire of the signaling circuit; When the current from the batteries is broken, the-armature will be released' from the magnet andthe connterweightfwill cause the armature to drop into contact with the adjacent screw 87, separating the spring-arm'84 from the post-78 and breaking the circuit leading to the 0on denser; m

It is desirable to of the vibratingarm. For this purpose I provide an adjustable weight 90 on the out-.

wardly-extending end of said arm, which may variably govern the speed 7 be adjusted nearer to or farther from the 1 7 point of support, according 'as a faster-0r slower speed is desired.

I havealso provided anordinary switch for the usual purpose of breaking th'ecircuits and cutting out-the batteries. This switch 95 is shown as adouble switch capable of cut ting both circuits at once.

The drawings illustrate the apparatus as It will, however, be understood that many changes can be made inihe construction and arrangement of the parts and in the wiring oi? the dilfer;

ent portions of my device without in the least departing from the nature and purpose of my invention.

Having thus fully described my said'jnvention,what' I claim as new, and desire to secure by Letters Patent, is- I 1. In a pole-changer, the combination with rzo a support, of a vibrating arm secured to the] support, means for automatically vibrating the arm, aringing-battery, a pair of wires in the ringing-battery circuit carried by-the arm, one wire co nected to each pole respectivelyof the ringin -hattery,contactipointsarranged in pairs, each pair projecting from opposite sides of the arm, each pair of points acting as'a terminal for each wire respectively, a pair of brushes on} each side of-the arm each pair adapted to alternately contact with the contact points, a pair of exchange wires, and branch wires connecting'the exchangewires to the brushes so that each exchange wire will alternately be connected to each pair of contact-points on the arm and an annunciator in the battery-circuit.

- 2, In a pole-changer, the combination with a support, of a vibrating arm secured to the support, a ringing-battery, a wire connected to each pole of the ringing-battery, the wires secured to and carried by the arm, a terminal contact-point carried by the amnion each wire, means for changing the continuous current at the'contact-points to an alternating current, a circuit-breaker for automatically vibrating the arm, and a separate battery for actuating the same and an annunciator in the battery-circuit.

3. In a pole-changer, the combin'ationwith a support, of a vibratingarm having a flexible metallic end secured to the support, a circuitbreaker for vibrating the arm, the metallic portion of the arm acting as a conductor for the circuit-breaker current, a ringing-battery, a wire connected to each pole of the ringingbattery, the wires carried by the arms and insulated from the metallic portion thereof, a terminal contact-point carried by the arm for each wire, and means for changing the continuous current at the contact-points to an alternating current and an annunciator in the battery-circuit.

4. In a pole-changer, the combination with a support, ofa vibrating arm having a flexible metallic end secured to the support, a circuit-' breaker for vibrating the arm, the metallic portion of the arm acting as a conductor for thecircuit-breakercurrent, a rin ing-battery,

a wire. connected to each pole o the ringing.- a, battery, the wires carried by the arms and insulated from thevmetallic portion thereof and formed in-a coil at the metallic portion, a terminal contact-point carried by the arm for each wire, and means for changing the continuous current at the contact-points to an alternating current and an annunciator in the battery-circuit.

5. In a p'oleschanger, the combination with a support, of a vibrating arm secured to the support provided with a flexible portion,

' mechanism for vibrating the arm, a ringingbattery, a wire connected to each pole of the.

ringing-battery, the wires carried by the arm and formed in a coil at the flexible portion, a terminal contact-point carried by the arm for each wire, and means for changing the continuous current at the contact to an alternating current and an annunciator in the battery-circuit.

'6. In a pole-changer, the combination with a vibrating arm, means for ant'oinatically'vibrating the arm, a ringing-battery, wires to the opposite poles of the battery carried by the arm, a terminal contact-point carried by the'arm for the wires, and a yielding flexible brush located adjacent the side of the arm and with which the contact-point on the arm is adapted to contact and an annunciator in the battery-circuit. I

'7. In a pole-changer, the combination with a vibrating'arm, of means for automatically vibrating the arm, a ringing-battery, wires connected to the opposite poles of the battery carried by the arm, a terminal contactpoint carried by the arm for the wires, a platinum tip for the contact-point, and a yielding-flexible brush located adjacent the side of the arm and with' which the contact-- point of the-arm is adapted to contact, and

a platinum hearing or contact-point located near the end of the brush and an annnncia tor in the battery-circuit.

'8. In a pole-changer, the combination with a support, of a vibrating arm secured tothe support, means for automatically vibrating.

the arm, a ringing-battery, a pair of wires in.

the ringing-battery circnitcarried by the arm, one wire connected to each pole respectively of the ringingrbattery, contact-points arranged in pairs,,each pair projecting from opposite sides of the arm, each pair 0: points acting as a terminal for each wire "respec-' tively, a pair of posts locatedadjacent to and on opposite sides of the arm, platessupported by the posts, the plates on each side of the arm projecting toward each other, flexible yielding brushes secured tothe. plates and extending therefrom, and arranged in the line of travel of the contact-points when the arm is vibrating and an annunciator in the battery-circuit. t I 4 9. In a pole-changer, the combination with a ringing-batteryv generating a continuous current and an annunciator, of means for changing the continuous current to aualter- ,nating current, a condenser and means for antomatically connecting theeondenser across the ringing-circuit'at thetimeot ringing,

10. In a pole-changer, the combination with a ringing-battery generating a continuous current and an annunciator, of means 'for changing the continuous current to an alternating current, a condenser, means for automatically connecting the condenser across --the ringing-circuit at the time of ringing, and

a wire leading from each pole of the ringingbatteryto the'changing means, one wire actuating theconnecting means for the .condenser. v

11. In a pole-changer, the combination with a ringing-battery generating a continuous current and an annunciator, of means for changing the continuous current to an alternating current, a condenser, means for an- ,tomatically connecting the condenser across the ringing-circuit at the time of ringing, the v said means consisting of a vertical magnet, a metallic standard, an armature pivoted on itop of the standard extending over the magnet', aconnecting-post, a spring contact-arm secured to the armature and extending over the post. H

12. The combination, in a pole-changer, of a support, a vibrating arm secnre'd to'the support, means for automatically vibrating the arm, circuit-wires running to saidiarm at or near the point of least motion and extending thence along and carried by said arm and,

terminating in contact members also carried by said arm, and other suitable contact members also forming terminals of circuit-Wires and located opposite the contact members carried by the arm with which they will engage as the arm is vibrated.

13. The combination, in a pole-changer, of a support, a vibratingarm secured to the support by means of a flexible connecting-piece,- means for automatically vibrating the arm, circuit-wires running to said arm at or near the point of least motion and extending thence along and carried by said arm and terminating in contact members also carried by said arm, and other suitable contact members also forming terminals of circuit-wires and located opposite the contact members carried by the arm with which they will engage as the arm is vibrated.

14. The combination, in a pole-changer, of

a support, a vibrating arm secured to the sup-,

port by means of a flexible connecting-piece set vertically whereby horizontal but not vertical swing is permitted, means for automatically vibrating the arm, circuit-wires running to said arm at or near the point of least motion and extending thence along and car-- ried by said arm and terminating in contact members also carried by said arm, and other suitable contact members also forming terminals of circuit-wires:-'.and located opposite the contact members carried by the arm with which they will engage as the arm is vibrated.

15. The combination, in a pole-changer, of,

a support, a vibrating arm secured to the support, means for automatically vibrating the arm, a battery, a wire connected to each pole thereof, wires leading to terminal contact.

members carried by the arm, other contact members positioned to contact therewith as the arm vibrates, means for changing the continuous current at the contact-points into an alternating current, an annunciator in the battery-circuit, and means for regulating the speed of the vibrating-arm.

16. The combination, in a pole-changer, of asupport, a vibratinarm secured to the support, means for automatically vibrating the arm, a battery, a wire connected to each pole thereof, wires leading to: terminal contact members carried by the arm, other contact members situated in the path of said contactpoints, means for changing the continuous current at the points of contact into an alternatingcurrent, and an annunciatorin the battery-circuit. I

17. The combination, in a pole-changer, of asupport, a vibrating arm secured to the support, means for automatically vibrating the arm, a battery, a wire connected to each pole thereof, wires leading to terminal contact members'carried by the arm, other-contact members positioned to contact therewith as the arm is vibrated, means for changing a continuous current at the contact-points into an alternating current, an annunciator in the battery-circuit, and a relay in the batterycircuit.

18. The combination, in a pole-changer, of a support, a vibrating arm carried by the support, means for vibrating the arm, suitable electrical circuits, contact members in said circuits carried by said arm, other contact members arranged adjacent to said arm and in the path of the contact members thereon as the arm is vibrated, means for changing a direct current into an alternating current, an annunciator-circuit,and a condenser across said circuit.

19. The combination, in a pole-changer, of a support, a vibrating arm secured to thc support, a circuit-breaker for vibrating the arm,

a battery, a wire connected to each pole thereof, wires leading to terminal contact mem bers carried by the arm, other contact mem" bers positioned in the path of the contact members on the arm, means for changing a continuous current at the contact-points into an alternating current, an annunciator in the battery-circuit, a condenser, and means for cutting in said condenser across the batterycircuit at the time of signaling.

20. The combination, in a pole-changer, of

a support, a vibrating arm secured to the support, means for vibrating the arm, a battery, a wire connected to each pole thereof, wi es leading to terminal contact members carried by the arm, other contact members positioned r to contact therewith as the arm vibrates, means for changing the continuous current at the contact-points into an alternating current an annunciator in the battery-circuit, arelay in the battery-circuit, a condenser, and means for cutting said condenser into said battery-circuit at the time of signaling.

In witness whereof I have hereunto set my hand, at Muncie, vember, A.v D. 1902.

WILLIAM, F. WARNER.

Indiana, this 22d day ofNo-

Images