US1280105A - Electric igniter. - Google Patents

Description

E. J. KANE.

ELECTRIC IGNITER.

APPLICATION FILED JAN. 14. I9I5.

Patented Sept, 24, 1918.

ems AVALLABLE COPY 51313 CHECAGG, KLLIL-BTOIS, ASSIGIQ'GR, BY ME$IE ASSIGNMENTS,

TC FESTEE, ELECTTEL-EG CGIIIEANY, G16 REGIME, WISCONSIN, A. CORPORATION OF IG-NITEE.

angina spells-115011. files February 2, 1e19, Serial l lo lilsfifl.

specification Letters Patent.

ii meiitefi Sept. 24,1918.

(Patent 1%. 1,204,573. Divided and this application file-'3 Jami spy 1915. Serial 3%. eoev.

Be it lens" that 1, En. i as :iUhd'ligI-i' i l-Al is. 2L citizen oi: the United iZiLELiQS; residing at Chie o. in the eoiinty of Cool; an. to of ti iilinoqli \e invented. certain new mo.

in Improvements in Elect which the following is a spe tieetioii.

l v invention relates to iimgiieto geneb store i'i l' if 'tioii fy tei'ns (it explosive engines, and pplietition a liv 1m; prior on for eieetiie i g ii? eiiplosive o .ies, "lied i ehi'uiii :5. with serial Number S ine-2 The object of my invention to proviiile a simple an f eiiicient cievii oi i ilfil chm'zietei' ineiitieneii. i fur her i to seduce 1* end llitiiil'lifiklilig filliiiflfifiiil contacts, anal.

iiigneto go en gments in: an

ester, shown.

' inciting my invenfig 2*. leig geir motion oi Lil: pgi'ne than i, and iiir-igiieio cut away in amiable to employing o ind in 1.. Web

I J en on line Ll--2 oi 5i and insulated therefrom in the usual iiianneif,

such insulation not being shown. At the.

outer and oi the contact member is secured. e. conductor wire 11, between .nuts 12 anti 13.

in block an arm lihaving a-beering member 15 at its outer end. In the-bearing member journeleci eshaft 16, which cari'ies the armature or inductor 17. The inductor 17 rotates between thefield-eores 18 llllki 19. The cores-18 and 19 are provided with suitable electrical windings and formed on the pole eieces S30 and 21, and the latter erejoiiied by fixed magnets 22 and 23. The pole pieces 20 and 21 are carried on supporting; block which is seouredhy set screw 2.) to the bearing member of bracket on or in which the magneto gen-erato is mounted, thus rendering the magneto generator iu'ope r, detachable from its firm supporting i nise. shelf or bracket formed integrally with ignition block or ping-8 as described.

to or part of the winding on pole-core 19,

on pole-core 18 in the usual manner. and is not specifically shown. The other end 24: of iillilflv'ilh' iim on polc-eore 18 is secured to the support block 25 at the set screw 25 or ether suitable fastening means to ground the (filfCHit in the framework of themagneto.

movable contact 26 isadepted to coopere mith fixed Contact 10, and. is provided with t: portion extending through block 8-, and in'eleetrioel Contact therewith. On the outer end of the portion 26 which extends through and beyond block 8 is fixedan arm zmii on the extended portion of part 26 is, mountedit torsion spring 28 with one end engaging; block 8, end the other end engagingi min 237 in e. manner to cause contacts 26 fl'liki. 10 to normally remain in contact. In

the tree emi of arm 27 is threaded an anvil.

The envii 29 is adjustahiy mounted in the 1GB end. of arm "27, so that timing of the engine may be varied slightlyyby such iuiji'istinents. v Secured on the shaft 16 is a. yoke member 30, having two arms extending 111 opposite directions from shaft 16, with one of the arms positioned at one end of anvil 29, anti adapted. upon oscillation of shaft 16, to eeiise movement 0% the anv l to openjthe eon- (luv and of the conductor 11. is connected pole pieces 20 and 21, so thatlthe tension of; springs 31 and normally maintains the 36 is actuated from thecrank shaft. of. the engine, not shown. 'jTheend of plunger rod tacts 26l0, asivill be described later, The arms of member30are 'provided with lateral extensions which: areconnected to tension springs 31 and32, said springs being-secured attheir otherends-to brackets 33 and 34 on arm memberi30 in a position so that one of its arms is in striking relation to the anvil-1 29, the position of the anvil vary1ng 0lW1- ously with its described adjustment. On the member 30is an actuating arm 35 adapted to be engaged by a'plunger 3b. The plunger 36 Whiehengag'es arm 35 is mounted-on a the plunger, the latter will engage M11135 to' oscillate member '30 and arm 35, and after riding on the cam surface .n'illbe' raised from the arm 35, permitting springs 31' and 32 to restore member 30; to its normal posit-1on'.-

Owing to the elasticity of springs 31 and 32 and the moment um oi member 30 the latter, will be carried slight ly past its normal-posh" tion. and en a 'e an vil 29 and rock contact b C i member 26 awaytrom contact 10 to open the electric circuit. The opening of thecircmtproduces the spark for igniting the engine.

By referring to the preferred embod i men t of my invention as depictedin the d raiving it will be seen that thesinglei spring 28 is. due to the manner of its connectionivith the movable electrode shaft and the .ignitcr block 8, ot' the torsional class of springs, while the multiple springs 31, acting cumulatirely upon the oscillating yoke member, 30mm tension springs'exerting theireombined ela'stension upon yoke member tic resistanceft 30 whenever itis oscillated from lthllifll'n'ifll sion spring is shown formed ofa much smaller grade of spring Wire than the mul- 1 tiple tension springs;3], 32,it[will also be obvious that its rel at ve tensional relation to the combined spr ngsiiiil, 32 Will be greatly diminished by the system-of leverages disclosed in the drawings of these associated parts. For example, torsion spring 28 must exert its reaction uponanvil lBVOlfQT at a point relatively close to the'fulcrum of th s lever while the combined tension of's )rin 's 31 and 32 is exertedupon the outer extremities of yoke 30, oneof'whiehparts also t'orms the striker and comes in direct contact with the anvil 29 on arin'27, so that therefls no loss of the J.'ea(.'tn'1g power otthls pair of springs. 'lh i's multiplies the eifectiveness of springs 31, 32 over the torsion spring 28 many times, with the result that in the comrection; means fordisengag ng the reciprobination {ZS f these elements shown in; the

drawing the reaction of the combined rotor springs is controlling, andwhen the momentum/of the rotor carries it=over center obviously the less effectively arran e'd single spring 28 will 'yieldyallowing the igniter points to separate, butclosing them quickly when the reboundingetfect of the rotor yoke iswithdrawn y In practice, I prefer to adjust, the anvil 29, which shown inthe drawings, is of an old and Well known form to those skilled in n this art, in relation to movable electrode arm 27 and the strikingpart of the yoke 30, so that when the yoke is at rest'it will not influence the position of'the movable elec-' trode arm 27 with the resultthat normally the electrode points will be in contact, which, as well known to those skilled in this art, is desirable in keeping the contact points of the electrodes treefrom deposits of carbon.

orother substances on the-interior of the engine cylinder thatmay interfere with the free discharge ofthe ignition. spark between the contacts. An obvious adjustment, however," ofanvil: 29 to preciselylclose the normal gap between it and .yok e llllyas shown, for fexainple-iirliigs. 2 andt}, will not change the described .mode of *operaticm oi" the igniter lpoints, but if the anvil be still furthen adjusted toward the yoke after the ga p disappears, obviously theanvil27will rest norn'ially in contact. with the yoke and the.

i niter points will be normally scpa 'ated by t 10 increasedleverage of springs31, 3'2 over spring 28 ,'to' be closed momentarily when the inter-yoke is-ro cked or cocked away from it and{afterward quickly separated by the reopcra'ting plunger 36. a l t The portion of member 30wvliicl1 engages bouu -impact ofthe yoke on jitsrelease from or curved in order to effect uni form movement of the arin 27 during thetiine the mem ber 30 is incontact witlranvil 29. The field pieces and inductor are not shown in detail, since their specific parts are'not part of this invention. A-nysuitable field pieces or inductor maybe used, as desired;

\Vhile I have illustrated and described the preferred form of my inventionyI do not desire tobe limited to the precise details and arrangement set forthdbutjdesire to avail myself of such variations" andchangesas claims.

I may come within the scope ofthe appended "l. In combination, afield magnet, an inductor mounted. upon a shaftfor oscillation relative to the fieldn'iagnet, a yoke mounted upon the shaft for oscillation with the inductor, an,operat1ng arinYearried by the yoke, a reciprocating:n'len'ibcr 'drivenby an nternal coinl'iustion engine to engage the operating arm to swing theyoke HLOlle d1- 105 the bottom of'anvil 29 is preferably rounded -the swinging contact SEST AVAILABLE COP nee les cating member from the operating arm to permit the oscillating parts to return to their normal position, spring mechanism connected with the diametrically opposite arms of the yoke, to return it to the normal position when relieved of the pressure of the reciprocating member, a curved cam surface on one arm of the yoke, a fixed electrical contact and a swinging electrical contact in the combustion chamber of the internal combustion engine, a spindle upon which is mounted, a push finger mounted upon the contact and spindle and carrying an anvil normally disengaged from the cam surface of the yoke but adapted to be engaged by the cam surface upon the overthrow of the oscillating yoke to separate the electrical contacts, and a light spring acting to bring the swinging contact and the push mal positions.

'2. In a device of the class described, a suitable field magnet, an inductor adapted for oscillating with respect to the field magnet, a yoke rigidly connected with the inductor and having projections at diametrically opposite points, main actuating springs connecting the pr01ecti0ns of the yoke with suitable stationary projections on the frame, the said actuating springs tendirig always to return the oscillating members to their normal positions, a pair of electrical contacts in the combustion chamber of an internal cdmbustion engine, a light spring tending to maintain theclosure of said electrical contacts, a push finger adapted when struck to separate the electrical contacts against the tension of the light spring, a curved cam surface on the yoke adapted to engage the push finger upon the overthrow of the yoke when returned to its normal p0 sition by the main actuating springs, an

operating arm associated with the yoke, and

reciprocating mechanism driven by the in ternal combustion engine to engage the operating arm to swing the yoke and the inductor out of their normal position.

3. In a device ofthe class described, the combination or a field magnet, an inductor mounted for oscilhtion within the. field magnet, a pair of main -actuating springs, each connected at one end with the field magnet frame, an integral yoke member the inductor, the being connected at said. yoke member,

main actuating springs their free ends with the an operating armconstituting a part of the integral yoke Ineinb'er andadapted to he encontact points within berof the internal combustmn engine, :L-

gaged by a reciprocating member driven by an internal cmnhust lm ei'igine, separable the combustion chamlight spring tending to maintain the closure of the electrical contacts. and mechanism adapted to be engaged by a cam surface on finger into their nor the end of ther'eci mechanism whereby I rotor effects the r-rpzufuhfin of saidelectrodes the yoke member to cause the separation of said contacts in opposition, to the tension of the said light spring.

l. Ina device of the class described, the combination of a field magnet, an inductor mounted for oscillation therein, spring mechanism tending to return the inductor to its normal position when moved out of said normal position, an, operating arm for turning the inductor out of its normal position, a reciprocahig actuating rod driven from the shaft of an internal combustion engine, the end of the reciprocating rod being adapted. normally to engagd'the end of the inductor-operating arm, means for shifting the path of travel of the reciprocating rod to determine its engagement with the operating arm, generating windings supported by the field magnet, separable electrical contacts' in the combustion chamber of the engine, and a member fixed relative to the inductor adapted to effect the operation of said contacts to create an ignition spark Within the combustion chamber of the engine. i 5. In a d'erice of the class described, a field magnet, an inductor mounted for oscillation I therein, an operating armfor said inductor,

a reciprgcating actuating rod driven from the shaft of an internal combustion engine,

rocating rod adapted normally to engage t' e and of the inductor-opcrating arm, generating windings supported by, the field magnet, separable electrical contacts in the combustion chamber of the engine, and an impact member fixed relasaid contacts to create a spark in the combustion chamber.

6. in a device of the class described, a fieldmagnet, a shaft, an inductor mounted uion the shaft for oscillation relative to the T old 7 magnet, a yoke mounted. upon said shaft for impact member fixed relative to the inductor .1 5 v and shaft arranged to effect the separation of said contacts to create an ignition spar k in the combustion chamber of the engine.

7. In an electrical ignition device for internal combustion engines, the combination of a magneto generator comprising rotor and stator and generating Winding, a ip'ai r'of relatively movable make and break sp'ark electrodes adapted to beflocatcd, within an engine cylinder, spring means tending normally to hold said rotor'in a certain position, the movement of the at a predetermined point in the movement or the rotor. a rigid unitary and integral support upon which all of the aforesaid parts electrical contacts within the:

100 tively to the inductor adapted to separate arej ilounted, u herebyall of said arts be removed from and returned to their position upon an engine cylinder without disturbing their relations one to another, conductors said generating winding to saidteleetrodes, and engine said rotoragainst the aetionof saidspring means and then toIi-eleaseit; j

S. In aneleetrioal ignition (le'vicefor in ternal combustion engines, the combination of a magneto and stator andgenerating winding, :1 pair,

generator comprising rotor of relatively movable make and break spark electrodes adapted to'bedooatedwithin an engine cylinder, spring means tending normany to hold said rotor in a certain position, mechanism whereby t-he movement of the rotor ell'ects the separation of said elec trodes at a predetermined point in the movement of the 'otor, a supportingmember upon the several parts ofwhieh all of the aforefor carryingelectric current from driven means adapted to oscillate medics:

said mechanism is mounted and hating a single integral part adapted tobe attached to the engineifwhereby all of said eneclnunsm may be removedfrom the engine hy reinovi ing. said single integral part a id may be re turned to its position upon the engine with unchanged relations between any a all;- of the parts of all of said mechanism,thereby insuring the predetermined synchronism and interrelated adjustment of'said mechanism when it is re )laced' upon the engine "and en gine drivenmeans adapted to oscillate said rotor against the action of 'saidfspr'ingmean: I

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