US1226971A - Combined starting and ignition switching device and circuits therefor. - Google Patents

Description

W. I. HART.

COMBINED STARTING AND IGNITION SWITCHING DEVICE AND CIRCUITS THEREFOR- APPLICATION FILED JULY 21, I9I4.

1,226,971 Patented May 22, 1917.

IN VEN TOR.

I BY 7 A TTORNEY ill W'ELLIAM. J. HART, Oh MUUIQ'T VERNON, unwfionx, ASSIGNOE 1'0 SPLITDOEF ELEC- TRICAL COMEANY, i NEVTABK, NEVJ JERSEY.

' I GQIl IIBINED STARTING AND IGNITION SWITCHING IDEVICE AND CIRCUITS THEREFOR.

' ignition coil of New, Yorlr,

Leeann.

To (157/ whom it may concern:

Be it known that I, l VILLIAM J. HART, a citizen of the -United States, resident of Mount Vernon, county of Nestchester, grate have invented certain new and useful Improvements in a Combined Starting and Ignition Switching Devi and Circuits 'lherefor, of which the following is a specification, giving a full and clear description, such will enable others skilled in the art to which it appertains to make and use the same.

My invention relates particularly to ap- T paratus used in starting and operating an internal combustion engine, such as used on automobiles and other moving vehicles. In certain systems now in use on moving vehicles, it is customary to start the engine using battery for a source of ignition. current, and as soon as the engine is started, to throw over on to magneto. It sometimes happens that a driver will in stopping the vehicle he is driving, throw his ignition switch-over on to battery instead of to the ofil position, and in a number of other ways, leave the switch on battery, in which case either the batteries are run down or the is burned out, or both things may occur. It also happens driver starts his engine he forgets to switch over to magneto and runs for a long time on battery. If he is using'dry cells, in the ignition circuits, he soon finds himself without any ignition battery for starting;

To overcome all of these diliiculties, I have combined the control of the ignition circuits with the starting switch which is now commonly used for operating and starting the motor, whichcranks the engine. By

my invention, it is impossible to leave the battery on the-ignition circuits orto run on I the battery after the engine has been started.

My involution is more particularly described in the attached drawings and specification, in which Figure 1 is a view of one form of starting moved and showing the various circuit contacts in their normal position.

Fig. 2 is a side elevation of Fig. 1' with Specification of Letters Patent.

that after athis runs them down andtherefrom by suitable switch with the cover re- Yatentcd may as, raw.

Serial no. 852,209.

one section of the switch box broken away to expose the switch plunger.

Fig. 3 shows a simplified wiring diagram of the ignition circuits in connection with the starting switch, a portion of which is shown as a section on line J K of Fig. l and the side walls on sections AA througl which the ignition circuit terminals project.

Fig. 4 shows a simplified wiring diagram of the starting motor circuit and the contacts used in the starting'switch for the ignition circuits.

in the various figures of the drawing like numbers are used for the corresponding parts. Referring particularly to thedetails, 17' is a starting switch box. 16 is a plunger which carries a contact arm '3. When the plunger 1; is depressed the contact arm 3 is brought into contact relation with the brushes .1 and 2, which are connected respectively to terminals 15) and 18. Terminal 1%) is connected to battery B, which has its opposite terminal grounded.

Terminal 18 e other terminal of which is grounded. Itis thus seen that the motor circuit is completed and the motor will begin to operate and continue to operate as long as the plunger 16' is held in a depressed position. Mounted on the side of the box 17, are suitable spring members 6, 9, 10 and 11. The member (3 has two forks, at Fig. l, the spring member 9 is below the fork 8, there being no spring member below the for]; 7. The spring member 6 is con nected by terminal 30 and wire 15 to a con-- tact s\\"itch l). Spring member 9 is connccted by means of terminal 31 to the frame of the box 1? which is grounded. The member 3 of the starting switch has mounted thereon two contact blades 4 and 5. 4C is not insulated therefrom, while 5 is insulated,

bushings, The contact blade 10'is connected by a terminal 28 and wire 12 to the primary P of the induction coil. The'switch blade 11' is connected by terminal 29 to a winding A of the magneto armature, the other end of said winding being connected to the frame 01 the magneto which is grounded. The blades 6,

7 and-8. Looking- 10 and 1,1, with their respective terminals are insulated from the box 17 as will be seen in Fig. 3. (onnected to wire 12 is wire 13, which runs to a contact screw K and the condenser L is a breakerboxlever usually mounted on the magneto and operated by the am ll. (onnected across prin' ary l is a condenser (l. Leading from the induction coil is a wire 1t running to the lever of the I switch I), which may be mounted in any convenient place to suit the driver of the vehicle. The semndary S of the induction coil is connected to one end of the prin'rary 1 and condenser and wire 1-1. The other end l) runs to the distributei' ot the magneto. This distributer is not shown. as; it is a well known piece of apparatus and forms no part of the present invention.

In the operation of the starting switch, by pushing plunger 10 'downward the member 21, which is carried on the auxiliary member 20 of the plunger and having two grooves 2(3 and 27, is caused to pass suddenly the plungers 2i andQS. in going from one position to the other, and by lllkllls ot the springs 22 and 23 a quick action is obtained so that there is no are at brushes 1 and 2. and no time is lost in switching from battery to magneto. lhe starting switch is made antomatic by means ot'the springs 22 and 23, so that as soon as the pressure is removed from the plunger 16, innnediately the engine starts on its own power, the switch blade is blade 5. switch blade it). contact carried back to its normal position, which position is the. operating position of the magneto and the off position for the start ing motor and battery ignition.

The ignition circuits so tar as the starting with a special switch,

fork 8, switch blade t and contact blade 9, terminal 31 to ground, to which the other end of the armature winding is connectial. second circuit is obtained for the armature .current from the wire 12through wire 13, contact l\, lever L to ground,

charged through the-winding l oi" in luc-' tion coil in the ordinary manner for circuits ot this nature.

It is thus seen that by my arrangement of switch parts and wiring I. am enabled to and thus it combine the ignition controlling apparatus with thestarting switch, thereby doing away which is ordinarily used with ignitioncircuits. \Vhile I have shown a so-called low tension ignition tem, my invention is broad enough to include all sysi ms in which battery is used in the ignition circuits during the starting period. The form ot' starting switch shown is no part oi my invention as my improvements may be applied to any of the numerous start ing swit hes now in use. I have also shown. the saint battery for ope 'ating both the startii'ig motor and ignition amiaratus. but this is not necessary, and it will be seen that numerous and extensive changes and alterations may be made in various details. without departing from the spirit of my invenswitch is concerned can be traced as follows:

Assun'iing that the plunger 16 is pushed down, so that the plungers 24 and-27 rest in a. groove 27 of member 21. then as previously described, the starting motor circuit. will be closed and battery will be taken from the switch member 3 to contact bl adesl. tork 7 0t switch'blade t'. terminal 30 to switch 1). the same being now closed, wire 14-, primary P of induction coil, wire 13. contact K. lerer L to' ground, which is also the opposite side of battery B. As the engine is cranked, contact K is opened and closed by the cam E acting on the lever lr. and a spark is pro duced by the secondary S oi the induction coil through'thc distributer and spark plugs oi the engine in the ordinary manner. \Vhen the engine begins to tire. the pressure is removed i'rom the plunger-"16. and it is returned to its normal position as shown in Fig. '1. pleted l'rom the magneto armature through contact 2 switch blade 11. contact 23 to the primary l of induction coil. wire 1-l. switch D, wire 15, contact Cit). switch blade. (1. and its it is now seen that a circuit is comtion and the scope of the appended claims.

Having thus described my invention, what I claim is: i I

1. In a device of the character described, the combination of a battery, 11. starting motor. a switch for connecting said battery to i said motor. a magneto hating a circuit. l iker and circuits therefor. said magneto operating said circuit breaker in one of said circuits when said switch connects battery to the starting motor and operating said cir cuit breaker in another circuit when said switch is in its normal position.

2. in combination. a starter circuit. a battery circuit aml a magneto circuit. a switch member manually movable in one direction close the starter circuit and :il1l()lllt\ll(:lll. movable in the opposite. direction to break such circuit. other switch members manually movable to break the magneto circuit and close the battery circuit and automatically operable to break the battery circuit and to close the magneto circuit. the battery circuit closing movements of said other members being dependent on starter circuit closing movements of said tirst switch member.

23. in a device ol' the character described, the combination of a battery. a starting IDO- tor. a switching mechanism connecting said the combination of a battery,

ber adaptedv to bridge the whereby battery is'connected'to the starting coil, said housing by said motor switching mechanism,

substantially as and for the purpose described. v

4. In a device of the. character described, the combination of a battery, a startingmotor, a switch. for closing the circuit of the battery to said motor, a. magneto, an induction coil, said switch also closing the circuit of battery to the induction coil, at the same time that closes the starting motor circuit, said switch also at this time opening the nctocircu'it, means for returning the switch to itsrnormal position, thereby opening the battery circuit to the motor and induction coil and closing the magneto circuit, substantially as and for the purpose described.

In a device of the character described, the combination of a battery, astarting motor, means for closin the circuito'f the batignition apparatus means for controliing the said ignition circuits, whereby an operative ignition circuit is closed, when said first mentioned means is in its normal position, substantially as and "for the purpose described.

3. in a device of the character cescribed, a starting motor, and means for. closing the circuit of the battery to said motor, said means having a normal and an abnormal position, a magneto, an induction coil in co-relation, and circuits therefor, said means also carrying means for closing the battery circuit to said ignition coil and opening the magneto cir-' cuits when the said means are in the abnormal position, and opening the battery circuit to the ignition coil andwclosing the magneto circuits when said means are in their normal position, substantially as and for the purpose described.

,7 In a device of. the character described, the combination of a battery, a starting 'motor, a switch, a magneto, an induction coil, a circuit brea'kerand circuits adapted to wor in congunction therewith, said mag;

neto beingremovedfrom said circuits when said switch is in its abnormal-position, subas and for the purpose described.

In a deviceoii the character described, the combination of a battery, a starting stantially motor, aswitch therefor, said switch ba ing two terminals, said'battery'being connected to one terminal and said-motor to the other terminal, a plunger. carrying a contact memtwo terminals,

eluding a magneto and an induction coil,

coil,

and close the co-relation b u battery'to said motor, a box tor containing said switching mechanism, a magneto, an in-.

duction'coil, a circuit breaker, and circuits therefor, contacts mounted in the side of said boX, said contacts being in said magnote, and induction coil circuits, the said switching mechanism also serving to open said contacts to said magneto, and said induction coil, substantially as and for the purpose described.

'10. In adcvice of the character described, the combination of a battery, astarting motor, a switch member- 'for closing the circuit of the battery to said motor, a magneto, an induction coil, and a circuit breaker in co-relation therewith, circuits for said magneto, a. circuit for said induction coil, the saidcircuits including; the circuit breaker, means'operated by said switch member "for opening the circuit of the magneto, and for closing the circuit of the battery to the induction coil and said breaker, at the same cuit of the battery to said motor, a' magneto,

an induction coil, and a. circuit breaker in therewith, circuits for said magncto, a circuit for said induction coil, said circuits including the circuit breaker, means operated by said switch member for closing the circuit or the magneto to the said circuit breaker, and opening the circuit of said battery to said induction coil and circuit breaker, when said; switch member is in its normal position, substantially as and for the purpose described.

12. lin a device of the character described,

the combination or'a battery, an induction coil, a magneto, a circuit breaker arranged in circuits common to both con and magneto,

.a switch adapted to open one of the common.

portions of said circuits, a starting motor and source of power therefor, means for closing the circuit betwee said source of power and said motor, said means controlling; switching; means, whereby the magneto I is removed from the ignition circuits, and a source'of power is connected to the induction 0011 at one means, and where y the magneto 1s connect- 0 l I ed into the ignition circuits and the source or power isremoved theretrom"'when the switching means is in another position, substantially as and for the purpose described. 13. In a device of the charactir described.

.osition of the switching the combination of a battery, .1 starting motor, and a switch therefor, said switclr liming two terminals, szticl battery being connected toonc terminal and said motor. to

icriminal'wlicreby battery is connected to the st :ntmg motor, said bridge member operating switch contacts controlling ignition cuits, substantially as described.

In testimony whereof I ailix my signature in the presence of two witnesses.

' \VILLIAM HART.

\V'itnesses M. V. BARTLETT, C. W. CURTIss.

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