US718588A - Electric motor or generator. - Google Patents

Description

PATENTED JAN. 13, 1903.

J. 'TITZEL, SR ELECTRIC MOTOR 0R GENERATOR.

APPLICATION FILED HA3. 26, 1902.

30 MODEL.

WITNESS. v 4 J/ UNITED STATE PAT NT OFFICE;

iiQHN; AN REW TITZEL, s'ti,v or FRANKLIN, PENNSYLVANIA, ASSIGNOR or ONE-THIRD TO JAMES C. TITZELI,-OF GLENSHAW, PENNsY-IJVANIAi iEL'sc -mo' M or-on on c EN E'R'ATO R. r

i, SBIGIII'CATIOR forming part of Letters Patent No. 718,588, dated Jam ie, 190a.

Original-applioitioh 1521 member 13, 1900, sen'n No. 39,628. Divided and this application filed March 26, 1902. Serial No. 100,044. (No model.)

' To all whom it mag concern; lar pole-pieces 7 8 of thearmature-magnets, Be it known that I, JOHN ANDREW TITZE'L, the magnets 9 of which are arranged in two Sn, aciti-zen of the United States, and a resisets, the coils of one set alternating with those, '5 5 v dent of Franklin, in, the county of Venango of the other set; .The number of armaturesandState of Pennsylvania, have invented a coils is equal to twice the number of fieldnew and Improved Electric Motoror Generaooils-.'that is, sixteen in the present case- ;tor, ofwhich the followingis a full, cleanand and the armature-coils are evenly spacedexafit description. 7 4 that is, adjacent coils from an angle of twenty- -'My-'nvention relates to electric devices catwo and one-half degrees or one-half of that '10 pable'of use either as motors or as generators, separating adjacent field-coils of the same set. and has for' its object' the production ofa The reduced pole-pieces 5 6 ofv the field-magstrongan'd uniform magnetic field, so that the nets are about equal in width tcthe spaces, 4 apparatnswill be very efficientin either of its between the reducedpole-pieces 7 8 of adjacapacities. cent armatur'e-magnetsn Owing to thesym- .15 This application is a'division of another apmetrical arrangement of the two sets of fieldlication formerly filed by me-to wit, Serial coils 3 4 the field-coils4 will be half-way be- No, 39,628,'fi1ed December 13, 1900'. tween armature-coils when the'field-coils 3 The invention-consists in the novel conregister with the armature-coils, as'shown in struetion and combination of the several Fig. 1', and vice versa. The armature-coils "parts ae win be hereinafter fully set forth, are mounted on a su'pportll, rotating with amm out in the claims. the shaft 12, which also carries a commutator if: -fReferehce is to be had to the accompanying having thirty-two sections-that is, twice 'as' drawings, forming a part of this specification, many as there are armature-coils. Alternate 7 5 in which similar characters of reference indisections 13 are unconnectedor made of insu- 2' 5 eate corresponding parts in both the. figures. lating material, and between saidsections are Figure 1 is a side elevation of my device, located conducting-sections1415 in regular a Fig. 2 is a central vertical section through alternation. Of these thesectio'ns 14 are consam'e. 4 nected by wires 16 with one end of each coil 9, 8o IAs hown in the figures mentioned, the apwhile-wires 1 7 similarly connectthesections 15 50f "j, :tuscomprisesa frame 1, with plates 2ifor with one end of each coil, 10. The other end of e'the field m'agnetsand coils 3 4. These each coil 9 is connected'by a wire 18 with the a *arrangedin two sets, and within wire 16 of the adjacent coil 9, and-similarly he field-coils are equidistant; but the other. end' of each coil 10 is connected by Y fa ace r end coils of different setsrare ara wire 19' with the wire 17 of the adjacent coil 5 rnged unsymmetrically. Thus there are 10. The, field-coils 3 4 should be wound so as shown eight field-coils-viz., four vcoils 3 and to produce the same polarity at the inner ends four coils 4. The angle separating adjacent of the field-magnets. The coils of each set coils of the same set is 360-'.8:45 degrees; are connected in series by wire's' 2021, and but at thetop the adjacent coils 3 and4 form one end or each-wire is connectedwith the v 45 Y binding-post 22, to which leads the feed-wire 1 a g o g and at the 23, while the other ends of the wires 2021 are connected with upperbrushes 2425, respec- 4:0 tively, engaging the commutator at. points 5 3 an 4 is 2% X 56% deg ees. Genericall-y distant from each other about twelve degrees,

' .1- (eleven andone-fourth degrees is the exact 45 speakmg the angle. Separating .such 00115 distance found by calculation.) To secure I im be equal to an unevqn mullnple of contra clockwise rotation, these brushes l of the angle sepmililg'rdlaceni field should be in the position shown by full lines coils of the same set-that is, in the present in Fig It will be seen that this connects the Brush 24 with that armature-coil which is nearest to the uppermost field-c0113 in. its l movement toward said coil, and the brush 25 ll; be QHIOflJlIG angle separating the endcoils' case 11;; degrees. The field-magnets have reduced poleepieoes 5 6, corresponding to simiis connected with that armature-coil which is nearest the-uppermost field-coil 4 in its move- ,nent toward saidcoil. At the bottom the commutat or is engaged by two similar brushes 24:

25, likewise located at eleven and one-fourth degrees from each other. These lower brushes are both connected by wires 26 27 with the ind'ing-post 28 and are so arranged that they will conncctw'ith those armaturecoils which are'nearest the lowermost field-coils .3 and 4, respectively. A feed-wire 29 leads to the binding-post 28. 'In the position shown in Fig. 1 the following circuit is just being brokenz wire 29, post 28, wire 26, brush 2a, a sectorl thence dividing into parallel and passing through wires 16 and 18 tothe right and leftof the figure, thence upward through." those of the armaturecoils numbered 9 to through right-hand field-coils 4 to post 22 and wire 23'that isto say, as the upper sector 14 is disengaging the upper brush 24c and engaging the brush 25 the left-hand field, made np 'of magnets 3, is being deenergized, and the right-hand field, made up of magnets 4:,

' isjus'tbeginningtobe energized. This-transi- Vance of the adjacent magnets 9.

, ate ly after rea tion occurs when the field and armature magnets are in the relative position shown, the left-hand field-maguets being in juxtaposition withadjacent armatureunagnets 3, and the right-hand field-magnets beinga little in adlVith the parts in the position shown the magnets of the left-hand field have justceased to attract the armature-coils 9 adjacent and the righthand field-magnets arejust commencing to draw the armature-coils 9- to which they are adjacent, so that the rotation of the armature is continued in the same contra-clockwise direction. As soon, however, as the armature rotates a little farthenso that the right-hand field-coils a are brought into juxtaposition with such of the armature-coils -9 as are immediately adjacentthereto, the sectors 1a are succeeded by thesectors 15, so that the current flows through armature-coils 10 instead of 9, the circuits being otherwise the same-- that is, during the rotation immediately pre ceding the reaching'of the position shown in Fig, 1 thejniotor has been driven contra clockw i. ,b yfthe attraction ofthe field-coils 4 upon many armature-coils immeding said positionthe motor is driven in the she-direction by the attraction of the ficld co'i lsf3 upon as many arn;a-'" hen follojws'a period during 1 which the field coils' 4' are energizedsimulta neou'sly with'as'many-ar'maturevcoils l0, and, finally, the four field-coils 3'attract as many armaturecoils 10. of these periods correspond to a rotation of the armature The follow through an angle of ele-venand one-fourth degrees. The armature is supported upon a shaft 30 in the usual manner. ternation in magnetic attraction is thus obtained. It will of course be understood that the armature-coils are all Wound so as to give the armature-magnets the same polarity,

bringing the brushes 24 to the position shown .for the brushes 25 and the latter to the posi tion shown by dotted lines. To enable the brushes to be thus shifted, they would be mounted on a carrier, as shown in the other Aregular ab.

view, having a limited turning-movement 1 about the axis of the commutator.

I prefer to make the conducting commutator-sections 14 15 of a slightly-greater width than the distance between adjacent brushes 24 25, so, that said brushes will fora moment broken and revents arkin' The apparatus is reversible-tha't is, it may be used as a dynamo or generator for the proboth engage the same section 14 15, thus mak ling one circuit before the preceding-circuit isduction of a continuous current. Further,

the apparatus may be employed as an alterhating-current generator. For this purpose a source of electricity would be connected. with the binding-posts22 28 to energize. the

field-coils 3 4 and power would be applied to turn the armature. An alternating current-- could then be taken 0E from the top brushes 24 25 to one binding-post and the bottom brushes to the other binding-post. Finally, I may use the apparatus as an alternatingcurrent motor. The motor will start in any position, Whether used with a direct current or an alternating one, and in the latter case the motor Will synchronize itself with the generator driving it. The motor can beoperated in either direction. The motor can also be constructed as a twin motor, as shown in Fig. 2. I Y

'Having thus described my invention; I claim as new and desire to'secure by Letters Patent 1. An electric motor or generator, comprising'a rotary armature, a commutator therefor, and a fragmentary field comprising separate sets of field-magnets, the magnets in each set being equally spacedapart and the two sets being so disposed :that the iz carest magnets in ad jacent sets are spaced apart by a different distance from the spaces-between adjacent magnets. in a set, and means for supplying a current to said armature and I saidfield-magnets. H w v 2. An electric motor or genera r,'co'm'pris- :ing a rotary armature, a commutator therefor and a fragmentary field comprising separate sets of field-magnets, the magne'ts'in each set being spaced symmetrically-as remerges I gards a common center and the jse tsbeing spaced symmetrically as regards said center, a set of brushes arranged to engage-the comznntator, each brush being connectedwith one set of field-coils, and another-"set of brushes connected :with the feed-wire and engaging said commutator at points substantially opposite the first-named brushesg am other feed-wire being connected wit" aid sets of field-magnets. v

3. An electric motor or generator, comprising two sets of coils, Viz: stationary or field:

coils, and rotary or'armature coils held to move in unison, the number of field-coils being two sets of r coils, viz: stationary or field coils and rotary or armature coils held to move in unison, the number of immaturecoils beingin excess of that of the field-coils, 3o a-coinmutator stationary in relation to the armature set vof coils and having as many evenly spaced conducting sections" as the said set has coils, eachv section being connected with one end of a coil of said setgand 35 the length of each commutator-se'ction"correspending to one-half of the angle separating adjacent coils of said set, said field-coils being divided into semicircular groups, and said groups beingarranged asym metrica1ly,spaced 4c brushes stationary relatively to the fieldsetof coils and engaging the commutator, and connections for supplying current to the; armature-coils and the field-coils respectively.

- In testimony whereof I have signed my 45 -name to this specification in the presence of two subscribing witnesses.

JOHN ANDREW TITZEL,

Witnesses:

T. S. BEATTY, M. R. HENDERSON.

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