US1314720A - varley - Google Patents

Description

RfVARLEY.

IGNITION SYSTEM.

APPLICATION FILED JUNE 28. I9I8- Patented Sept. 2,1919.

2 SHEETS-SHEET 1.

R. VARLEY.

IGNITION SYSTEM.

APPLICATION FILED JUNE 23. mm.

1,314,720. I r Patent-ease 2, 1919.

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STATES Arnn'r orrron.

RIQHARD VARLEY, 0F ENGLENVOOD, NEW JEItfiEY, ASSIGNOR TO VARLEY DUPLEX EMAGNET COMPANY, OF JERSEY CITY,

JERSEY.

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JERSEY, A CORPORATION OF NEW isnrrron srsrn'n.

Patented Sept. 2, 3919.

Application flied 511.11% 28, 1518. Serial No. $42,367.

'full, clear, concise, and exact description,

reference being had to the accompanying drawings, forming a part of this specification.

My invention relates toimprovements in ignition systems.

It has been found in practice that in ignition systems in which magnetos are em- I ployed to provide current for the spark plugs or other ignition devices, in the course of time the ability of the magneto to deliver a strong, hot spark becomes diminished. This is probably due, among other things, to the vibrations and sudden, severe jolts to which the magneto is subjected during operation.

the proper ignition current, to remove the magneto from the automobile or othcr ap paratus with which 1t is connected, and to then remove the permanent magnets and re- I charge them by means of some special suitable apparatus. The removal of the permanent magnets from many types of magnetos makcs it' necessary to practically dismantle the magneto and for this reason and for a further reason that it requires considerable time and effort to remove the magneto and to properly connect it after the magnets have been re-charged, it is highly desirable to provide some means for recharging thepermanent magnets without removing either the magneto from the machine with which it is connected, orthe permanent magnets from the magneto. I

The objects of my invention are:

First, to provide an ignition system comprising a magneto of such construction that the magnets thereof can be re-charged without removing either the magneto or the permanent magnets thereof, this system being preferably a double system, that is, one

In which the means are provided for supplying current to the ignition devices from either a magneto or a source of unidirectional current, usually a batter and including means for connecting the means for recharging the permanent magnets with the unidlrcctional source of current of the ignition system.

jects, adaptabili'ties and capabilities will appear as the description progresses.

In the preferred embodiment of my improved magneto I provide a. pair of magnetizing coils 'formed from copperribbon, the coils being wound in opposite directions about the opposite poles of the permanent magnets and insulated therefrom. I then connect the inner ends of the coils together and ground them upon the magneto frame, and also connect the outer ends of the coils together and provide means for insulating this connection from the magneto frame. I further provide a pair of contacts one sooured to the outer convolution of each coil adjacent the connection between the outer ends of these coils.

In the old ignition systems which include as a source of current a separate battery, one terminal of the battery is usually grounded when the ignition system is used in connection with automobile engines. This terminal is grounded upon the frame of the automobile. When the frame of my improved magneto is secured to the metal fran'le work of an automobile and in electrical contact therewith, the inner ends of the coils will then be connected with the ground terminal of the battery. I also provide means for connecting the other terminal of a battery battery and the other end provided With a contact adapted to be brought into contact with either of the contacts on the re-charg ing coil or coils of the magneto. By thus connecting the recharging coils with the battery the current will flow through the two coils in opposite directions and with substantially the same strength, thereby recharging the magnetos.

I have illustrated a preferred embodiment of my invention in the accompanying drawings in which Figure 1 is an isometric View showing the body or framework of my improved magneto and the permanent magnet thereof in combination with the means for re-charging the magnet;

Fig. 2 is a transverse section taken on a line corresponding to line 2-2 of Fig. 3;

Fig. 3 is a longitudinal sectional view taken on the line- 3--3 of Fig. 2;

Fig. 4 is a more or less diagrammatical sketch of a system embodying my improved magneto and the means for re-charging the same, certain features of the ignition system being well known.

Similar characters of reference refer to similar parts throughout the several views.

Referring to Figs. 1, 2 and 3 of the drawings the reference character 5 indicates the body or framework of my improved magneto which may be formed of any suitable non-magnetic material, but is preferably formed from an alloy which can be *ast about the pole pieces 6. The reference characters 7 indicate the opposite poles of the horseshoe magnet, these poles being secured to the pole pieces G'by means of screws 9.

. T he construction described above forms no part of my present invention. The reference' characters 10 indicate two coils of wire, which surround the poles of the permanent magnets, and which are wound in'opposite directions. These coils are formed from a single piece of copper ribbon, the inner ends of which are brought up over the top of the horseshoe magnets 8 and secured together in overlapped relation, as indicated at 11. The ribbon from which these coils are formed is insulated except at the point wherethe inner ends overlap. These portion of the ribbon are free from insulation, so that the inner ends of the coils are grounded upon themagneto and will consequently be connected with the grounded terminal of the storage battery located on the automobile in which my improved magneto is used.

That portion of the copper ribbon which extends between the two coils is bent down Wardly, first along lines extending at an angle of substantially 45, with the edges of the copper ribbon as shown in Fig. 3, and then along lines parallel with the lower edges of the coils to form a loop, the bight of which rests upon a sheet 12 of insulation. By this construction the outer ends of the coils are insulated from the frame of the magneto. Secured to each of the coils at a point adjacent its outer end is a contact plate 13 which is secured to and in electrical con tact with the outer convolution of the coil.

Referring now to Fig. 1 wherein I have illustrated my improved ignition system as embodying certain features of awell known ignition system, the reference character M indicates a magneto embodying the novel features described above. This magneto supplies current to the ignition devices it through conductors 15. My improved magneto is here illustrated as being of the high tenstion type and supplies high tension cur rent to the ignition devices. It includes, among other things, a distributing apparatus indicated in general by the reference character 16, the details of which form no part of my present invention, and the interrupter mechanism of the low tension windings of the magneto, which is indicated in general by the reference charactc r 17. the details of which form no part of my present invention. The reference character 18 indicates in general a single unit induction coil which is supplied with current from the battery 19 through the conductor 20. the opposite end of the coil being grounded by the conductor 21, whereby the current returns to the grounded terminal of the battery 19 through the conductor The primary winding of the induction coil includes the conductors 23 and 24-, which lead to mechanism connected with the interrupter mecha nism 17 of the magneto for interrupting the primary circuit, all in a well known manner. The secondary coil of the induction coil is connected by the conductors 25 and 26 with the ('listributing mechanism of my magneto in such a manner that the single distributor of the magneto functions to distribute current of both magneto and the induction coil to the ignition device. This structure is also well known.

As showing one means for supplying re charging current to the coils 10 of the mag neto, I have illustrated a conductor 27 having a switch 28 interposed therein and mounted in any suitable position such as upon the dash of an automobile, one end of the conductor 27 being connected with the ungrounded terminal of the battery 19, and the other end of the conductor 27 being connected in any suitable manner with one or both of the contacts 13 of the coil or coils 10. A conductor 29 shown for grounding the frame of the magneto upon the automobile frame.

i'i hen the operation of the magneto indicates that the permanent magnets thereof should be re-charged, it is simply necessary to close the contacts of the switch 28, whereupon current flows from the ungrounded terminal of the battery 19 through the conductor 27 to one or both of the contacts 13, then around the coils 10 in opposite directype but may simply include a magneto of my improved type, and whenever it is necessary or desirable to re-charge the magnets of the magneto, it .IS simply necessary to bring the opposite terminals of a source of unidirectional current in contact with one of the. contacts 10 and the body of the magneto respectively. Further modifications will readily suggest themselves to any person skilled in the art to which my. invention relates. U

Having thus described my invention What I claim as new and desire to secure by Letters Patent ofthe United States is:

1. The combination witha magneto comprising a permanent magnet, of means for chargine said magnet comprising a pair of coils wound around the opposite poles of said magnet in opposite directions, the outer ends of said coils being connected together and insulated from said magneto, and the inner ends of said coils being connected together and grounded upon the said magneto, and means for conducting current secured to one of said coils adjacent its outer end.

2. The combination with a magneto comprising a permanent magnet, of means for charging said magnet comprising a pair of coils wound around the opposite poles of said magnet in opposite directions, means for electrically connecting the inner ends of said coils, means for connecting the outer ends of said coils, and means for insulating one of said connecting means from the magneto, the other of said connecting means being grounded upon said magneto.

3. The combination with a magneto comprising a pern'ianent magnet. of a pair of coils.wound upon the poles of said magnets, means for connecting the ends of said coils to form a single. closed circuit, and'means for insulating said circuit from said magneto except at one point where said circuit is grounded upon said magneto, another portion of said circuit being exposed to form a contact.

4. The combination with a magneto having a permanent magnet, of, means for charging said magnet comprising a pair of coils wound around the poles of'said magnet in opposite directions, and having their inner and outer ends respectively connected together, and a contact secured to one of said coils adjacent one of said connections, the other of said coi'mections being grounded upon said magnet.

In witness whereof I hereunto subscribe my name this seventeenth day of June,

RICHARD VARLEY. \Vitnesses J. Gno. M'uYnns, E. I. Cuoswmm.

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