US265783A - Regulator for dynamo-electric machines - Google Patents

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(No Model.)

' T. A. EDISON REGULATOR FOR DYNAMO ELECTRIC MACHINES. I No. 265,783. 7 Patented Oct. 10, 1882.

INVENTORi 0/ iAw \fi v gaazm i ot'translat-iugdevices in circuit.

UNITED STATES PATENT OrFicE.

T OMAS A. nurses, or Minnie. PARK, new JERSEY.

REGULATOR FOR. DYNAMIC-ELECTRIC MACH l NES.

s mmmmm forming part of Letters recent Ito 265,783, dated October 10, 1882.

- application filed August H, lfll. ,(No mudt-l.)

To all irhomyi-t may concern:

, Be it known thatI, THOMAS A. Entsom of lll'enlo'larlt, in the county of Middlesex and State oi New. Jersey,have invented a new and useful improvement in Means for .lte'g'ulating Electrical Generators, (Case 'No. 461;) and 1 do hereby declare that the following is a full and exact description of the same, reference being had to the accompanyingdrawing, and to the letters ot'ret'erence marked thereon.

The objectof the present invention is to produce means for automatically regulating the generative capacity of dynamo or magneto electric machines, which means will be simple and compact in construction, avoiding the use of bulky resistances, and, further, willhe cilicient in operation, regulating'both forchang'es in the speed of the-engine and in-the number w The means are applicable more especially to dynamo or magneto electric machinessupplying lamps, inoto rs, or other translating devices arranged 'in independentmnltiple arc circuits. The object is accomplished by the'use ot a peculiar circnitbrcaher located in the field-circuit of the machine and controlled by an electromagnet another electrical controlling deviec'arranged 'in-xuultiplej-arc and affected the same as the lamps by variations in electrofinotive force caused byehanges in the speed of the onme as well as by changes-in the" number of translating devices.

In carrying out the inventiontherc is uscda' revolving cylindrical circuit-breaker, which is divided up between'metal and insulation on a plane arranged obliquely to the axis of rotation, the insulation and'metal having a tapering shape. By this construction the circuitbreaking cylinder .is made to present in revolving various proportions of insulation and metal at diiferen't points ot'itsilength. At one end of the cylinder theinsulation predominates largely, while towurd the other end the insulation regularly diminishes to a point. This end of the cylinder has preferably a band of metalextcuding ent 'ely around the cylinder, upon which rests a stationary brush or spring.- A'inovable brush is carried by a pivoted bar, and rests upon the cireuitdn'eaking cylinder at points varying from the stationary brush to the other end of the cylinder. This pivoted the retarding iorce oi the air.

bar is moved bytwo elcctro-magnctsarrangedr on opposite sidesof its pivot, audits movement is retariledai-ld made regular by means of one or two reciprocatin,1 dash-pot plungers, which are preferably of large area aud worlr against The circuits 0t: these eiectro-magnets are made and brokenat tllQCOlltflCY-S ot' the armature-lever of an elec- 'tro-magnet.arrangedinmultiple are, or by a c thermostatic device, sothat the movable brush or spring will be adjusted upon the breakingcylindcr andwillheep thctlcld-eircuit open .more or lessot'the time, according to whether the electro-inotive force is above or below the y 6 normal limit.

The tbregoing will-be better understood by reference to thedrawing, which. illustrates an apparatus embodying theinvention, the arma- 'ture ot'the generator being separated from the A is'therevolving armature of a dynamo 'or magneto eleetric'machine, and- B the commutna'gnet for clearucss ot' illustratator-cylinder of the same, upon which rest the 7 commutator-brushes a, I), connected with the main conductors 1 53.

O represents lamps, motors, or other translatingdevices, arranged in separate multiplearc circuits from 1 2. D is thefield-of-t'orce electronnagnet'of the generator.

E-is a revolving circu t-breaking cylinder, divided between metal 0 and insulation (1 on a plane oblique to the axis'of rotation',.thc metal and insulation having a tapering form, as'' shown, and the metal t'orming'a complete hand at its large end. This circuit-breaking cyliin der may be mounted upon thearmature-shaft, as

Sll0WI1,D1f it may been aseparateshaft worked 0 from any moving part 'of the generator or en,

'vginc, or it conldjbc revolved by a small eleptromotor or by a spring or weight-operated mech anism. 'A stationary brush or spring, 6,

rests upon the band of metal at the eudof c,- 5 while a movablebruslnf, rests upon the cylinder E, between the brush 0 and the other end. of the cylinder. This movable brushj'is carried by a centrally-pivoted bar, F,-the position of which is controlled by two' clectro-magnets,

G H. The bar F is connected with one or more reciprocating dash-pot; plungers, l, which are preferably ot: large area. andyvorl; against the resisting'forcc of the airin cylinders L Sol aro onergizeii-froin any 2 nos closed on ons or both ends suitable s innlliplc-nrc circuit Zhoir licwno nseai for tho purpose. This circa. ifcrn of connection 3, running, from 2 snar ZlIfitlliQ-EEVEP), and from the; contacts ihsii lover h v wires 3 l, to ihs coils n i and W i rnnniinr to conductor 1, i c lining: prol'rrzihly employed ijilfi ci n max mum-lover is moral-flo al if? n a .il' 4 is hsid in n central position ":wccn by spring fingersio mag" f3? in n'mnllipis-crc circuinfi Lfroin i 2" Tho cironii, oi" the ljold-of-iorco may be supplied froin-snynuii'aiiissource, it is.

prcfcra-hly n ninltiplc-nrc circuit; 8 9 from' i 2;

hi] brushes or s irings e i'and circnithrcakin a cylinder E bei ngincluri'eil in thecircuili. ,Whc'i'i the elcolzro-nioiirc force is normal, lever grriil.

stand in (i-central position heiWeei'i-h" and ii and the circnitsofinngncts' i and H. will. ho

hroig n. "lihc billF \i'ill hssintionary, and tho rcvol'ii'iion ofthc-c i'lindcr E will keepthefieldcircuit open a definite proportion'ioi" the vtime. For convenience of illustration, this maybe considered ns o'nc-hali' of the onciro iiine,-ihe. brush rssring on E or, a point; where its cir-' cumfe'rcncs is divided equally becween met-cl and insulation.- Now, if there is an increase of eieciro-motirfeiorco, the lsvcrg will make tho contact c, closing circuit through Hand draw ing-F downwardly on the right ofi rs pivot. The brush F will noiv rest on E,-wlicro the insulation is greater than the metal, and hence the fiilil -0l1'0llli1 Wili be kept ope'n'a greater proportion of. tho iime anrl we lieldnagnci; will ho weakened. if there i'sa. decrease of ole'ciro-niotivo force below ilhc normal, leverg will make contact Ii and the circuit ofG will he completed, tipping bar Fnml ihmwingthe movable brushf towards to a point on thccylimlcr E where there is more metal than insulation, and reducing the length or time that the field-circuit is lrcptopen in each revolution of E.

The inn-go cis G The which ziirscts 1;, is localozl.

insieao. of using the. clectromagnet K for ccnrroiiing G- mdHrthe tlier'mostaticoevice dcscriheriin mgapplicmion 1N o. 460(3011211 No.

62 258) my be Employed.

What claim s- I Th "ombination, with n dynamo or mag:

in machine, of a circuit-breaker for the. gcnerativc cnpacily of the maunc'i moans controlled by the current for ho proportion ofn'iiike and break,

lly sct forth;

neizo'eiecbric machine, of'a revolving circuitircoking cylinder having a. surface of tapered insulating mntcrisiland nictaha movable brush or spring and a mechanism controlled by tho corrosion-n l adjusiing sniil movable brnshor 6 spring upon the breaking-cylinder, for regulating the generative capacity of-bhe machine, sniistnniially as sob-forth.

The combination, with a dynamo or mag ncto electric mnchine, of a revolving circuit- 7 breaking oyliniir'located in the field-circuit onl having a surfacc of tapered insulating material and meraha movahle'brush or spring,

oppositcly-working elcctro m a'gnets for adjusting said movable brush or-spring, and a con-' trolling device arranged in multiple arc, substantially as sci: fort-hi 4. The combination, with adynamo ormagncto-clectricmachinc, of a revolving circuibbreaking cylinder located in the field-circuit-8 of the machine and .hnvinga surface of ta- 4 pered insulating material and metal; an adjustahlc brus'hor spring, a pivoted bar for ailnets noting oppositely anrlseparatly upon such 8 hiir, means located in muhiple-a-rc for controllingt'ho circuits to said electro-magnets, and one or more dash-pots for retarding the movement, substantially as set; forLh.

21- The combination, with a dynamo or mag- 6o This specification signed and witnrsscd'this 0 7th ilziy ofJuly, 1882. THOMAS A. EDISON. Witnesses:

Ricrrn. N. DYER, EDWARD H. Pr.uu'.

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