US856085A - Electrical cut-out. - Google Patents

Description

PATENTED JUNE 4, 1907.

P. T. MONALLY.

ELECTRICAL CUT-OUT.

APPLIOATION FILED MAY 25, 1906.

2 ISHBETSSHEET 1 6 n a m a M a WA WN c M H M P WITNESSES I ,4 Tram/5Y5 No. 856,085. PATENTED JUNE 4, 1907.

. PJT. MONALLY.

ELECTRICAL CUT-OUT.

APPLICATION FILED MAY 25, 1906.

2 SHEETS-SHEET 2 j INVENTOH Pmu PT. MCNALLY ATTORNEYS separateline circuit from the power house, or'

UNITEDsTArns PATENT oFFroE.

PHILIP THOMAS MoNALLY OF MANDAN; NORTH DAKOTA.

ELECT ICAL cur-our.

Specification of Letters Patent.

Patented June 4, 1907.

Application filed May 25,1906. Serial No. 318,766.

switches; or other electrical cut-outs. It is. especiallyintended for turning on and off any one ormore ofa system of arc lamps,

operated by a. single alternating current dynamo, where it is not profitable to make a install a separate alternator for operating the arc lamps and incandescent lamps. It

, may be used also .for' shutting a trans formers when not required. for use, thus preventing loss 1 of -'power; 1n the ldle transformers; or for any other analogous purpose.

It consists in -the novel construction J and arrangement of 'electro-mechanlcal parts 1n connection w th various circults in which a special small wire circuit from the power house extends, to. the instrument which if works theIsnap-s'wi'tch, or otheranalogous electrical cut-out, and operates a controlling electroemagnet whichcloses two local circuits-in' which are -two other chemo-magnets,"

, one of which'cuts in the main line circuit into 4. cut m. or out, are shown in double lines.

a solenoid which turns the. switch, and the other one of which local-circuits, with its electro-magnet'acts as a detent to prevent recurrent action as hereafter described.

Figure 1.is a front elevation of my new instrument with its parts connected to the various circuits. I The main line, and branch line containing the lamp or lamps to be The controlling circuit from power house, is shown by single heavy unbroken line, The

cut-in. circuit is shown by the crossed line and the detent circuit is shown by the dot anddash line. Fig. 2 is a vertical section of Fig.1 takenv on about line 22 and looking in the direction of the arrow. Fig. 2* is a sectional detail of the upper part of the solenoid 7 showing its plunger .in elevated position.

Fig. 3 is-a detail on line 3-3 of Fig. 1 looking in the direction of'thearrow. Fig. 4 is a sectional detail through the switch operating shaft taken-on line 4'.-4of Fi'grl, looking in the" direction of'the arrow.

Similar letters of reference indicate the same arts inall the views.

Referring to Fig. 1, X Y are the main lines running from the power house and X Y represent the two wires of a branch linein -which are located one or more lamps which by gravity when the circuit is cut-off; by the upward movement of the soft iron plunger forcing armature lever B away from spring jaw contacts 0c as seen in Fig. 2 and; more fully described hereafter.

.To the lower end of the soft iron plunger F is attached a rack bar G which meshes with a loose inion I turning freely on' the shaft H. This pinion on one side, see Figs, carries a spring pawl i which engages a ratchet'wheel h rigidly fixed to the snaft H,- so that when the soft iron plunger and the attached rack rise the pinion I is turned and through pawl i gives the necessary turn to the ratchet wheel h and the attached shaft II.

This shaftis arranged coaxially or "concenthe power house, or any other remote point,

a small iron wire circuit from the powerhouse is extended to the 1nstrun1ent,.-as shown by the sin le heavv lines 0 0 and in one of these wiresis placed a key or circuitcloser C One of these wires 0 is connected to a'binding post '0 and thenceby wired to an electromagnet (1., The other wire 0 is connected. \to the binding post 0 and thence by wire a to the other terminal of the helix of the same electro-nlagnet C. This circuit I term the controlling circuit and when it isclosed at the power house-it serves to actuate the electro-magnet' C which I term the controlling magnet. This ele'ctro-magnet has an armature lever E fulcrumed at 6 and bearing anarmature e, playing upon the poles of the electro-magnet O. The armature is normally held awayfroni the magnet by a coil spring 6 at one end of the lever, and the other end of the lever bears across head contact plate e that simultaneously closes two local circuits, one of which cuts in the main line current into the solenoid, and the other of which operates the detent magnet for the purpose hereafter described.

The circuit which cuts in the main line into the solenoid acts upon the electromagnet B and is indicated by the crossed lines n n n n "rt" n n. It flows from the local battery N and has two points at which it may be closed or opened. One of these points is between a pivoted bar J. and spring jaw contacts k, and thiother-point is between the cross head (2 ol lever E and the subjacent contact 71.

The detent circuit, acts upon electro-rnagnet D as willbe more fully described hereafter. It is shown by the dot and dash line m, m, m m, m, m m. 'lt llows from the local battery M and is opened and closed between the cross head e of lever E and the subjace-nt contact m.

To operate the solenoid two lead wires w y connect the main line wires to the fuse block Z of my instrument. One wire a: con meets with :0 and binding post andspringjaw contact at. The other wire '31 connects with wire y, binding post 3 and wire g with one terminal of the solenoid coil. The other terminal of this coil connects by wire it with armature lever B". This lever is lulciumerl upon a post in and has an armature if that is normally held away l'rom the poles of the electro-i'nagnct l3 b means of a spring t). The other end of this lever is formed with a knife edge l) which when arms! l is drawn down, passes between the spring-- jaw contacts :r. so that when clectro-n:agnci B is energized by the battery .I through (:o ntrol electro-magnet (l, the armature lever B is drawn down and cuts in the line current into the solenoid coil through the following path: wire m, post 11 spring-jaw contact :r. armature lever B, wire at", the wire of the solenoid and out through wires y and y.

The ell'ect ol the above cutting-in ol the solenoid L5 to raise the soft iron plunger l and rack bar G and thus turn the snap switch. As the plunger rises. as indicated in dotted lines in Fig. 2 and full lines in Fig. 2, it forces out arn'iature lever B from spring-j aw contact 0:, thus throwing the solenoid out of circuit and allowing the soft iron plunger and attached rack bar to drop, and unless prevented this action of the solenoid would be repeated as long as contact key 0 at the power house was held down. This action however is prevented in the manner described farther alon Referring to Fig. 2, it will be seen that there is a cam i attached to the side oi pinion E and when the pinion is turned by the rise of the soft iron plunger and its attached rack bar this cam strikes against an insulating block on the bar J and as this bar is pivoted at its upper end 1, the lower end of the bar is pressed outwardly, as shown by dotted lines, separatingthe bar J from the spring-j aw con tacts 7c, and bringing armature D within ef fective range of electro-magnet'D, where the armature i's firmly held as long as contact is maintained at power house. The two parts (bar J and contacts is) form apart (see Fig. 1) of the crossed-line circuit of electro-magnet B and this break in the circuit demagnetizes magnet B, and when the iron plunger falls the action of the solenoid would be repeated and the whole instrument useless for the purpose for which it is intended. To bring the lighting and the extinguishing of the lamp under definite and exact control, it is neces sary to prevent the recurrent cutting-in and cutting-out of the solenoid, and this is done by the detent electro-magnet D and its local battery M as will be now described.

T he elcctro-magnet I), 1, has an armature l) mornted on lever D which is fulcrtmed in the middle and at its other end is pivoted to a link bar 1), Fig. 2, which connects it with an ins: lated block ZfiXed to the end of the bar J. A'spring Z pulls the bar J down into contact with jaws lc'and holds the armati re D normally away from the electromagnet I). ll, however, this electro-mamiet D is energized and the soft iron plunger of the solenoid starts to move up in the solenoid and turns pinion l throtgh rack bar and raises cum 1' innnediately breaking circuit through bar J, this movement of bar J from cam i, brings the armature D of magnet D in close proximity tosaid magnet l) where it is clasped and firmly held, thus immediately preventing the elosu re of the circ it through electromagnot B. The circrit through electro-magnet B cannot be restored until contact at the power ho se isbroken and restored. Thus the clos re of key C at the power house is made to close the detent circuit thro"gh dc,- tent elcctro-magnet D and hold bar J away from contact it, so long as key C is kept closed, so that one elosu re of key (l makes only one movement in the soft iron plunger ol' the solenoid and not a repeated or recurrent movement of the soft iron plunger, which would alternately turn on and oil the lamp,

1 claim 1. An electrical cut-out, comprising an 'e'lectrr -mechahical device for turning a switch, an elcctro-magnet with local battery circr-it for cutting-in said electro-mechaiiical device to the main line, a controlling electromagnet with an individual circuit extending to the control station, a circuit closer placed in the cut-in magnet circuit and operated by the control magnet, and means for making one impulse of the control circuit produce one movement only of the elect ro-mechanical switch moving device.

2. An electrical cut-out, com prising an electro-mechanical device for turmng a switch, an electro-magnet with local battery circuit for cutting-in the saidv electromechanical device to the main line, a controlling clectro-inagnct with an individual circuit extending to the control station, a circuit closer placed in the cutin magnet circuit and operated by the control n'iagnct, a detcnt clectro-magnet with local bat tery cir" cuit for checking the clectr i-mechanical cutin device alter its lirst moven'icnt and circuit closer for this last named circuit also operated by the control magnet simultaneously with the cut-in magnet closer.

I). An electrical cut-out, comprising a solenoid with circuit contacts arranged in a main line lead, a rack bar attached to the plunger of the solenoid,- a shaft for turning the switch and having a loose pinionthereon engaged hy the rack bar and hearing a mi, a ratchet wheel rigidly lixed to the shalt and engaged l v the pawl, a cut-in el'ectrotnag net operating the contacts of the solenoid, a local hatter circuit. for the lltlli magnet with circuit c oser therein and a control elec tt'O-tntrgtu-l arranged to adjust said last. named circuit closer and having an individual circuit extending to the control station. I

4. An ltctrical cut-out. comprising a solenoid nith circuit contacts arranged in a main line lead, a rack bar attached to the plunger ol' the solenoid, a shaft for turning the switch and having a loose pinion. thereon engaged in the rack bar and bearing a pawl. a ratchet wheel rigidly fixed to the sh lt nd engaged by the pawl, a cut-in eleetroe net operating the contacts of the soleni local batter circuit for the cut-in 111i with circuit. closeetl'ierein, a circuit breaking switch for the cut-in circuit opened o the switch turning devices, a detent circuit with an electriemagnet and stop device for holding open the circuit breaker of "the cut-in magnet alter its initial movement, and a control magnet and circuit extended to the control station, said control me -net being arranged to close the circuit closers of both the cut-in magnet and the detent magnet.

5. An electrical cutout, comprising a solenoid with circuit contacts arranged in a main line lead, a rack bar attached to the plunger ot the solenoid, a shaft l or turning the switch and having a loose pinion thereon meshing with the rack and provided with a am and a pawl,- a ratchet wheel rigidly att. ached to the shaft and engaged by the pawl,

a pivoted bar arrai'iged in the plane of the cam and moved laterally by the same and forming a part of the circuit breaker, a cut-in electro magnet for the solenoid having its circuit completed through said bar and circuit breaker, and a control magnet operating a circuit closer of the cut-in circuit, and means for holding the pivoted bar circuit breaker in an open position after its initial movement. I

ttain electrical cut-out, comprising a so lenoid with circuit contacts, arranged. in the main line lead, a rack bar attached to the plunger of the solenoid, a shaft for turning the switch and having a loose pinion thereon meshing with the racl; and provided with a am and a pawl, a ratchet wheel rigidly attached to the shaft and engaged by the pawl, a pivoted bar arranged in the plane of the cam and moved laterally by the same and forming a part oi a circuit breaker, a cut-in eleetro-magnet for the solenoidhaving its circuit completed "irough said bar and cir-- cult breaker, a control magnet and circuit operating a circuit closer of the cut-in circuit, a detent magnet and circuit. having a circuit closer also operated by the control magnct and an armature lever and spring for said detent magnet, said lever being arranged to hold the circuit ljn'eaking bar oi" the cut-in magnet in its open position where ever the detent magnet cla its armature.

T, An electrical cut-out, comprising a main line with a lead for the cut-out device and a. hranch line for th: lamps to beoperated, a solenoid with circuit cont-acts arranged in said lead, a rack bar attached to the plu'nger of the solenoid, a shaft with a clasp on its end engaging the snap-switch ol the branch circuit, a loose pinion on. said shaft meshing with the rack and provided with a cam and a pawl, a ratchet wheel rigid lv attached to the shaft and engaged by the pawl, a pivoted ha: arranged in the plane of the cam and moved laterally by the same and forming a part of a circuit hrealter, a cut-in eleetro-magnet for the solenoid having its circuit completed through said bar and circuit breaker, a control magnet and circuit operating a. circuit closer of the cut-in circuit, a detent magnet, and circuit having a circuit closer operated hy the control magnet and an armature lever and spring for said detent magnet, said lever heing arranged to hold the circuit breaking bar in an open position whenever the detent magnet clasps its armature. 7

PHILIP THOMAS idcNAliliY. YVitn esses J. R. GILBRE/tlil, l). M. Snoou.

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