US1547342A - Magneto - Google Patents

Description

July 28; 1925.

E. B. NOWOSIELSKI MAGNETO Filed y 2, 1921 3 SheetsSheet 1 IN l/EN TOR Edward D. Nvwasjeiski A TTOR/VE V July 28, 1925.

E. B. NOWOSIELSKI MAGNETO Filed July 2, 1921 3 Sheets-Sheet 2 WW MM 5 July 28, 1925. 1,547,342

E. B. NOWOSIELSKI MAGNETO Filed July 2, 1921 3 Sheets$hee.t 5

IN [/5 IV TOR fawamj Mms/e/JK/ W 27%? Patented July 28,1925.

UNITED STATES PATENT OFFICE. 7

ELECTRICAL COIPANY, F NEWARK, NEW JEBSE ILGNETO.

Application filed July 2,

To allwhomitmy concern:

Be it known that I, EDWARD B. Nowosnm- SKI, a citizen of the United States, residing at Bloomfield, in the county of Essex,

7 State of New Jersey, have invented certain new and useful Improvements in Magnetos, of which the following is a description, reference being had to the accompanying drawing and to the figures of reference marked thereon.

This invention relates to magnetos and in particular to the circuit breaker mechanism and high tension distributor mechanism thereof.

It is an object of this invention to enclose these mechanisms within a unitary housing, such that when the cover is removed, all of the breaker and distributor mechanisms are exposed for inspection and repair.

It is a further object of this invention to so construct the above mechanisms that the whole may be removed for replacement and repair without dismantling the current generating portion of the magneto.

These and further objects will be apparent after reading the followin specification and claims in connection wit the accompanying drawings in which- Figure 1 is a sectional view of my complete magneto.

Figure 2 is an interior view of m housing front plate showing the circuit reaker and high tension distributor mechanism in lace.

p Figure 3 is an interior view of the cover for my housing front plate.

Figure 4 is a view similar to Fig. 2,some of the parts being removed.

Figure 5 is a diagrammatic cross sectional view of the magneto showin the relationship between the pole pieces, t e magnet and the induction coil.

Figure 6 is a detailed view on a reduced scale illustrating the mechanism for driving the distributor spool.

Figure 7 is a fragmentary view of a portion of my mechanism, also on a reduced scale, and;

Figure 8 is a back view of the condenser employed with my construction.

Now referring to the several figuresmore in detail, 1 indicates a base structure to which is secured an end plate 2 and a housing 3 as by means of screws 4. The end .plate 2 and housing 3 carry bearings for a 1921. Serial No. 482,053.

rotor 5, and are, therefore, generally referred to as the back and front plates, respectively, of the magneto, said rotor being of the inductor type and acting to direct the flux from a permanent magnet 6 in alternately opposite directions through the core 7 of an induction coil 8 via magnet pole pieces 80 and 81 and core pole pieces 9 and 10 embedded in the base structure 1. The induction coil is provided with a high tension terminal 11 which projects within a bore 12 of a connector block 13 and makes contact with a metallic insert 14 therein through a coiled spring 15. The connector block is seated within an opening in the back wall of the housing 3, and is provided with a shoulder 16 to fit against the edge of the opening. To retain the same against displacement a metallic ring 17 is provided, said ring having two cars 18 secured to the back wall of the housing by means of screws 19. Since the ring is grounded to the housing, it is spaced away from the connector block adjacent to the exposed portion 20 of the insert 14 to provide a suitable air gap therewith, and an annular flange 21 is provided to bear against a shoulder 22 on the connector block to retain the same in place. Mounted within the housing is a spider, its legs 23 being secured to the back wall of the housing by means of a stud 24 and screws 25. Rigidly secured in the hub of the spider is a bearing 26 within which is rotatably carried a hollow shaft 27 ha fixed to it a gear 28 meshing with a second gear 29 keyed on to a projecting shaft end 30 of the rotor 5.. The shaft 27 is held against lateral displacement through the expedient of a snap ring 31 engaging a circumferential groove 84 in the shaft. Slidably retained within the hollow shaft is the shaft of a distributer spool 32, the same having a metallic core 33 bored out at its end to receive a spring pressed brush 34 referably of carbon to collect the current rom the insert 14 in the connector block 13. The core adjacent the bored out end is provided with a ring 35 which cooperates with the grounded metallic ring 17 to form a safety spark gap therewith so as to prevent rupture of the coil should the secondary circuit remain open during operation of the magneto. The spool is driven by the hollow shaft through a key 36 moulded on the distributor spool engaging within a slot 37 in the from side to side of the cover and. which is insert 49 in the distributor S.

secured at its ends b means of pins 45 secured in ears 46 men ded on the cover 43. The distributor block is provided with collector brushes 47 which are connected to the high tension leads of the magneto by means of stiletto cable. connections :48, only one of which is shown in Fig. 1, the path of the high tension current then being from the coil through, the brush 11, insert 14 in the connector block, the brushv 34, cor-e33, an ol, one Of the collector brushes 47, and om a cable connection 48 to the engine spark plug and ground back .to a grounded end of the induction coil.

One end of the prima induction .coil is connecte circuit of the by a cable 50 which may be enclosed by a sheath 51 throughout aportion of its length, with a stationary contact 52 as by means of a screw 53,;said contact being mounted on an ear struck up from a plate 54 secured to a breaker base plate 55.by means of screws 56 and insulated therefrom by an insulating plate 57. Also struck up from the same lateis a wiper holder having prongs 58 ween which is pinched a felt wiper 59 bearing on the elevated portions of a cam 60 removably secured on, the shaft 30, to wipe 01f any excess oil that may have (Yollected thereon. The breaker base plate is essentially annular in form and is free to rotate in bosses 61 cast u from the back wall of the housing, said sses. being snitably shouldered as at 62 to rotatably seat the breaker base plate. To retain the same i into holes in the housing. The stu against lateral displacement two spring clips 63 are provided, the same bein secured to the housing 3 by means of'stu 64 ta ped s 24 and 64 are each threaded at their free ends and project through apertures 66 in the cover 43, nuts 67 being provided to secure the cover to the housing, and a suitable cork J a bumper 71', and a spring 72 is secured to or felt gasket'68 being interposed at the said lever arm and its free end rests a'projecting arm 73 struckup'from the base .to resiliently maintain the contacts 52 and in engagement. The cam 60 in itsrotationengages the bumper to make and break the .prlmary circuit through the contacts 52 and 70, thelever arm 69 being ounded directly to the frame by means 0 a cable 74 secured beneath one of the studs '64.

Bridging the contacts 52 and70 is a condenser 75, the terminals of which are secured to the screw 53 and to a stud 76 which is'tapped into the breaker base.

The back of the condenser has a struck up rtion to which is rigidly secured a lea spring'86 as by a nut 87, said spring being provided at its free end with a button 88 adapted to bear against the hub of the lever arm, toretain-the same on the stud when the condenser is in osition. r

In order to oscillate the reake'r base plate carrying the breaker mechanism to advance or retard the spark, as. will be well under stood by those s illed in the art, a bell crank lever 77 is journaled in the cover 43 and-the same may bejactuated by means of a rod or a cable engaging an exterior end portion 78 {.Ihereof. The inner end of tha bell cranlk as a portion e gin a s otte portion 9 of the breaker biise glate. The spider is provided with a pro ection 82 adapted to engage an are. shaped recess 83 in the breaker base late to limit the extrem advanced and retarded positions thereof.

From the above'descriptionit will be seen that by removing the nuts 67 that the: cover 43 of the housing may be removed together with the distributor block 42, thereby exposing the circuit breaker and high tension distributor mechanism. The above mechanisms" may then be dismembered for repair or replacement as follows. i

The distributor spool 32 may be simply slid out of its hollow shaft; the stud 24and screws 25 beingremoved, the spider together with the gear 28, bearing 26and its.-

lubricating mechanism may be removed and thereafter these latter parts may be .dis as- :sociated by removing the snap r by pryin off the cover 27 from t e bearing 26.

removed by removing thetwo screws 19.

f so desired, the h tension connector. block and safety spar gap may be t .31 and The condenser 75 may be easily removed p by removing the screws 53'and 76. .The

lever arm 69 with its contact and spring loosening any screws, etc, the end of the spri 72 bein free and not screweddown to a ed ortlon of the breaker base late as is now t e common construction, an the breaker base. late with its entire mechanism may be lifte oil from its'boss by'removing thespring clips 63.

I havethus provided a magneto" wherein all of the parts are-enclose'd'withina s' housmgin' such a mannerthat all of gie may be removed from. off its-stud without a grounded meta cover for said housing,

parts may be exposed for inspection, repair or replacement, without disturbing'the current generating portion of the magneto.

Having thus described my invention what I claim is:

1. In a magneto, a front plate forming .a substantial part of a housmg, a metallic a rotary distributer finger and distributer mechanism enclosed within said housing, a distributer block detachably carried by and removable with said cover and having parts extending through the cover into cooperative engagement with said rotary distributer, all the portions of said mechanism being readily removable from the housing upon removal of the cover.

2. In a magneto, a front plate forming a housing, a removable metallic cover therefor carrying a quickly detachable distributor block, a distributer spool co-operating therewith, a hollow shaft slidably retaining the spool and driving the same, a gear secured to the hollow shaft, a bearing detachable from the interior of the housing provided with means for retaining said gear and shaft in place within the housing and means cooperating with the gear to drive the same.

3. In a magneto having an induction coil, a front plate forming a housing, a removable cover therefor carrying a distributer block, a distributer spool cooperating there with, a hollow shaft slidably retaining the spool and driving the same, a gear secured to the hollow shaft, a bearing detachable from the interior of the housing provided with means for retaining said gear and shaft in place within the housing, and a connector block for completing a circuit between said induction coil and the distributer spool secured in said housing and removable from the interior thereof.

4. In a magneto, a housing, a removable cover therefor carrying a distributor block, a distributer spool provided with a conductive element cooperating therewith, a hollow shaft slidably retaining the spool and drivmg the same, a gear secured to the hollow shaft, a bearing detachable from the interior of the housing provided with means for retaining said gear and shaft in place within the housing, a connector block having lic ring spaced from the distributor spool conductive element and forming a safety spark ap therewith secured in said housing and removable from the interior thereof and means cooperating with the gear to drive the same.

5. In a magneto, a housing, a removable cover thereforcarrying a distributor block,

, a distributer spool provided with a conducshaft slidably tive element cooperating therewith, a hollow retaining the spool and drivmg the same, a gear secured to the hollow shaft, a bearing detachable from the interior of the housing provided with means for retaining said gear and shaft in place within the housin having a grounde metallic ring spaced from the distributer s ment and forming a sa ety spark gap therewith secured in said housing and removable from the interior thereof, said connector block being provided with a flange to rest a connector block 1 conductive eleagainst the interior of the housing and said ring having ears to receive screws to bind the same and the connector block to the housing.

6. In a magneto, a distributor mechanism comprising a hollow shaft, a distributor spool having a portion in said hollow shaft, said shaft being rotatably mounted in a bearing, and lubricating mechanism for said shaft comprising a cup frictionally retained on and encompassed about the bearing, an P1 to the shaft and a lubricating wick in said opening.

8. In a ma eto, a housing, a cover therefor, and rea ily dismemberable distributor mechanism com rising a hollow shaft, a distributor spool idably removable therefrom but rotatable therewith, said shaft being rotatably mounted in a bearing, a snap ring retaining the shaft from removal from said bearing, and lubricating mechanism for said shaft comprising a cup frictionally retained on and encompassed about the bearing, an opening through said hearing from sai cup to the shaft and a lubricating wick in said openingysaid spool, shaft, lubricating cup and gear being removable as a unit from said housing.

9. In a magneto, a housing, a rotor having a shaft end projecting into said housing, a removable cam on said shaft end, a boss in Ill said housing, a breaker base rotatably mounted on said boss, a spring clip removabl secured in said housing and retainin sai breaker'base in place on said boss, an

a circuit breaker mounted on said base 00- operating with the cam.

10. In a m eto, a housin a circuit breaker mechanism housed therem comprisi a breaker base, a lever mounted thereon, a umper and a contact at opposi t eends' of said lever, a cam cooperating with said bumper, andhn insulated plate mounted on said breaker base, said plate being bent to provide a holder for awiper, a wiper in said holder coo crating with the cam, said plate being furt er bent to provide a stationary mounted contact in position to cooperate with the lever carried, contact, and means to connect said plate to a conductor.

'11. In a magneto, a front plate iorg a housi, a distributor mechan mounted in the upper part of said housing; a circuitv breaker mechanism housed within the lower portion of said housing comprising a breaker base plate, a contact carrying lever mounted thereon, a stationa contact mounted on said breaker base p ate in position to cooperate with said lever carried contact, and a spring mber secured to the lever urging said contacts into engagement, the other end of said spring bearing against an abut meht on said plate but being free and unattached therefrom.

12. In a ma etc, a housing, a circuit breaker mechanism housed therein comprisi a breaker base plate, a contact carrying lever mounted thereon, a' stationary contact mounted on said breaker base plate in position to cooperate with said lever carried contact, and a condenser fired in position above the contact lever, said condenser having a resih ent a bearing on the contact carry ing'lever to maintain the same on its pivot,

13.,1In a etc, a front plate foing a housing, a spder mounted within the top portion of said housing and carrying a distributor mechanism including a' bearing shaft, gear and distributer spool with lubrieating mechani for the shaft and bearing,

' a cit breaker mechanism carried in the portion of said housing and carrying a diser base p ate. v 4

15, In a magneto, a front plate forming a housing, aspider mounted within the top ing wit 7 lever for adjustably moving said breaker lower portion of said housing, comprising a breaker base plate carrying a stationary and movable contact, and a single cover plate for closing said housing. v

1a. In a magneto a front plate forming a housing, a spider mounted within the top portion of said housing and carrying a distributer mechanism including a bearing shaft, gearrand distributer spoolwith lubricating mechanism for the shaft and bearing,

a circuit breaker mechanism mounted within the lower portion of said housing compris-- ing a breaker baseplate carrying a movable contact and a cooperating adjustable contact together wit a condenser bridged acrom said contacts, a single cover plate carryingk a distributor block and cooperat 4 said distributor mechanism and mechanism.

In testimony whereofl a my signature.

EDWA B. NQOSELSKL

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