US1264943A - System of selective electrical distribution. - Google Patents

Description

I C. F. KETTERING & W. A. CHRYST.

SYSIEM 0F SELECHVE ELECHHCAL DISIHIBUTIUN.

APPLICATION rum) MAY x. I916, 1,264,943. Patented May I, l9lb.

(J. I. KEHEPHNU 61 Vt. A. CHHMm, SYSTEM FF SkLECTH/l: HKCUHUH HISIITHHHIU APPLICATION mm mm 1, 1w

Pnlvntml \lzl) I ins C. F. KETTEIHNG & W. A. CHRYST. SYSYEM 0F SELECTIVE ELECTRICAL DISTRIBUTION.

APPLICATION FILED MAY u. 19m. 1,264,943 l'utvntud May IEHh.

3 SHEEIS bHEtI 3.

Fgs-El- 6 j v 751122515 W51". j 4,

GHARLES F. KETTERING AN!) WILLIAM A. CHRYST, OF DAYTONJOHIO, ASSIGNORS TO THE DAYTON ENGDTEEBING LABORATORIES COMPAN A CORPORATION OF OHIO.

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Original application filed November 20, 1912, Serial No. 782,483. Divided and this 1916. Serial No. 94,664.

To all whom it may concern:

Be itknown that we, Crmnnns F. KETTER- mo and WILLIAM A. Cnnrsr, citizens of the United States of America, residing at Dayton, county of Montgomery, and State of Ohio, have invented certain new and useful Improvements in Systems of Selective Electrical Distribution, of which the following is a full clear, and exact description.

This invention relates to ignition systems such for example as are used with internal combustion engines, and has moreparticular relation to the combination of such a system with a starting-system for starting the engine by a dynamo electric machine.

It is among the objects of the invention to arrange this system in such a. manner that upon operating the ignition switch to close the ignition circuit, the engine starting device will at the same time be given an initial movement to facilitate the coupling of the starting device to the engine for cranking purposes.

Other objects will appear in connection with the ensuing description, having reference to the drawings accompanying this specification.

This present application is a division of original application, Serial No. 732,483, filed November 20, 1912. a

The subject matter of the original application relates in general to various arrangements of ignition circuits and construction of so calledpush button switches for controlling the ignition circuits.

.The present application relates to the combination of the ignition apparatus with the starting apparatus as above mentioned.

The original'application just referred to, made reference to other applications upon which the improvements were based or which were referred to for more detailed description, and of these cases which were previously referred to, the present case relates more particularly to an application which issued into Patent 1,150,523, dated August 17, 1915, and application 721, 237, filed September 19, 1912.

Referring to the drawings: Figure 1 represents a diagram of the electric circuits.

Figs. 2 to 6 inclusive, re resent views of the push button switch mec anism.

F 1g. 7 1s a cross section of the double bind- Speculation of Letters Patent.

to the circuit for the preliminary starting tact plates 30, andBLthz-ou Patented May v, 1918. application filed May 1,

motor with y-wheel of the engine, for the starting or cranking operation. This corresponds to a similar view in Patent 1,150,523, above referred to.

Fig. 9 is another diagrammatic view of the electrical circuits. for the initial movement of the starting device. This view is .in correspondence with a similar diagram: .matic view of application 721,237, above referred to.

The general circuit arrangements accolding to Fig. 1 will first be described, in order to explain the push button arrangements for the ignition circuit, with enera'l reference operation.

There are four push buttons embodied in the push button switch, namely, 420, 421, 4 59 and 131.

The lower butto'n 420 may for convenience be called the vibrator button, because when so pressed in, it closes'such an ignition circuit as to give what may be called a vibrator spark, in distinction to a single spark hereinafter referred to. It is this button which also serves to close another for the purpose of giving the starting device the preliminary operation to facilitate coupling of the sta g motor and engine together for cranking urposes.

The ignition circuit closed by this vibra- 90 tor button 420 will first be described.

As soon as the button 420 is depressed, the contact plates 36 and 35 jare se ted, while the contact point 36" is moved mte engagement with the-contact rent will now flow' ,from p through wire 27, th hepvy wmdujg. 28 of the ignitiorrrelay device, acmssthe cqnhthe wires 600 and 609, thence P the contact. oint as, contact plate 178 m the timing evice.25, -via wire-601. This current then flows; through the ti'ming device 25 to the wireor conductor 602, through the primary winding 22 of the -induction coil, 10 5 back to the battery, via the 'wire24. From the above, it will be seen that the current from the battery will through preferable to embody in 55 ectrical circuit plate 178.. cur -,.;a fliebattery 15536, through the envy coil or winding 28, andthis winding "ill so energizethe core 32 of the ignition relay, as to attract the armature 33, and thereby tend to effect the separation of the contact plates 30 and 31, and this will of course cause a demagnetization of the core 32 and consequently permit the armature 33 to return to its normal position, again permitting-the contact plates 31 and 30 to make contact. l

A repetition of the "above operation will be'efiected, as long as current. continues to flow through the main circuit. That is, the successive breaking and making of the main circuit will be effected by the operation of 4 the armature 33 and the consequent opening and closing of thecontacts 30 and 31.

This successive breaking and making of the main ignition circuit will of course create successive sparking impulses in; the induction coil, andthereby furnish a succession of igniting sparks in the proper cylinders of the'engme." g

This type of ignition is well known in the; air, as vibrating type ignition. 1 11- itc -As stated hows, the pushbutton' .s includes- buttons 421 and 459. v If the button 459 is depressed, the magneto "system of ilglnition will be brought into operation by v t e current' from the storage batter-r 330 clos' From of the following circuit; 1. e magneto'606,. through wire 61,

through contact plates and 58, wire 62,

through the resistance uriit 57, and the pri mary winding 56 -'of the '{induction' coil, through the timer' 51, thence back tothe ma eto606. en it is' desired to use the sin le spark I battery ignition, the button 421 is dhpressed, and providing the button 420 isi'n' such position as to permit the contact plates 36.? and 35? to make contact, the following circ'uit' will ,bel'closedz 4' Q From' the battery'20, through. wire 27, 1 across the heavy coil 28 oi the ignition relay device, thence across contact plates and 31, o the wire-600.1 Fromthe wir'efiOO,

through the wire'607, contact plates38 and 21-,ithrough the wire 608, ithence to the wire L 601; through "the timer 25, wire 602," pri-' f rly ,wincling 22 of, the induction coil, back e W-f f T i J asT'thefcui-rent,; tends to ss through the coil 2s, theatersr the igni-i Ation relay device'w-ill tend 26 become mag I netizetl'andattr'nct the armature 33, -so as f to break themain circuit by the separation ofthe contact plates 30 ;aml131. Assoon as this separation of the'conta'ct, plates 30 and 31 occurs, and the main circuit is broken I in the manner described v above, a supplemental or auxiliary circuit will be estab- -lished. so that a small amount of current will tend to pass from the coil 28, through tho-fine winding 29, which is of much higher resistance than the coil 28. This reduced in a su tab e amount of current is only suflicient to maintain the core 32 of the ignition relay so magnetized as to maintain the armature 33 in position to separate the contact plates 30 and 31.

The current after passing through the fine winding 29, will'pass through the wire 34, across the contacts 35 and 36, thence through conductor'609, to the conductor 607 from which point, it will follow the course 75 of the circuit above described, that is, across the contacts 38-and 21, thence through wire 608, to wire 601, through timer 25, wire 602, primary winding 22 of the induction 'coil, back to the battery. I I v so The flowof current through the fine winding 29 will continue until such time as the main circuit is broken at the timer 25. It will thereiore be' seen that when f the' l button 421s in depresse position, tl ie c3 cuit arrangements will be. 'th'utonl "a single sparking impulsewill creed-ii theinductio'n coil for each time, new e circuit is closed by the timer The operation of thelstartinglcirciiit b '90 the same vibrator butonj420'is asiollows.

It will be obvious from Fig-1* depression of thevibrator button 42 the contact at'the' point---=438', ;.so"

which is explained more :in.detail.in the ut 3 cut and application above referred tow-I e a brief, this clutch 40 servestosconnectau the operating" pedal in such mannerathat the "depression of (thee rating editL then, establishes a connection t e sptartin motor: and the flywheel of the-'gasj-engin These partsare shown n ,Fig. 8ofthe pres ent drawingsandoperateasjfollowsz j i The depression ofi thencllltch pedal; ,0 tends to efiecti the shifting, ofgtheiclutchf shaft .704 andloonsgqufgntlylthe, the o 48 assessme i ml y s 91, f,

ever-T49, whichisfpivoted a rs; while. the o paositeendthereofgi's t he. d he new ane-" flexible connection, as' isjshown at '76. ,uf-ith the stud shaft 72, which 'is 'cdhr'icted ic'tlie shiftable gearing, comprising the pi n'ions 71 and 73, which constitute a. means'fon-coupling the electricmiichi-ne'43l to the flywheel 705 of the engine, Njgypon the'actuation of the'rod 48,-

due the depression of the clutch pedal 703, he straight arm lever 49 will be shifted 7 so as to pull the leve 53 in such a direction mentioned patent, the

' as to draw the pinion 73 into enmeshment with the armature pinion 74 of the electric machine, and the pinion 71 into enmeshment with the teeth 710 of the flywheel 705, thus coupling up the engine and electric machine.

As explained more in detail in the above ordinary de ression 0f the clutch pedal 703 does not e ect the starter-coupling o eration. But, when the push button 420 Fig. 1) is operated, this sends the current from the battery through the magnet 433, so as to o erate t e armature of the clutch 40. This clutch is likewise shown in Fig. 8, and when operated by the magnet as described, this connects the clutch pedal 703 to the operating rod 48, in

such manner that the depression of the clutch edal operates the rods 48 and 53, to shift the coupling gearing in the manner just described. v

In order to facilitate the clear understanding of this arrangement with reference to the present description, a fragmentary portion of one of the views in application 721,237 (above referred to), is incorporated into the present application, namely in.

By referring to this figure, it will be seen thatv the depression of the aforesaid ush button 420, at the sametime that it c oses the circuit throu h the magnet coil 433, also establishes the circuit from the stora e battery 430 through the dynamo electric machine 431.

The nature of the armature windings of this dynamo electric machine 431, utilized for the slow initial starting movement, as described in the application referred to, is such, (being of high resistance,) that the flow of the battery current therethrou h gives only a slow turning movement to t e electric machine 431 so as thereby to facili-' tate the couplin of the electric machine to theflywheelof 51c engine.

Then, as soon as this coupling is effected,

the continued movement of the operating said application,

. ment to "the engine.

pedal above referred to, and as explained in throws the main switch for sendin the electric current of the battery throng the motor windings of the electric machine, in order to give the cranking move- These heavier motor windings are for convenience designated on Fig. 9 as 310.

The diagrammatic circuit arrangement of F1 9 is as follows he movable element 98 of 'the main switch is normally in the position. shown in full lines in Fig.0. When the button 420, (see Fig. 9) is depressed, it closes the contacts between 438 and 420, which will effect the closin of the'following' circuit: From to battery 430, through the line wire 440, to the common contact late 103 of the main switch, thence throng the mov- 105, thence throu h lish the slow 'mentioned circuit will effect a slow initial movement of the electric machine, because of usi the high resistance armature windings the dynamo electric machine 431. The flow of this current will also efl'ect the operation of the clutch 40 which tends to couple up the main operating pedal 703, in such a manner that when the pedal is do pressed connection will be established between the starting motorand the flywheel of the gas engine.

This slow initial movement is for the purpose of facilitating the enmeshment of the coupling gears 74. 73, 71 and 710, so that the car 74 of'the electric machine is turning s owly while the operator is depressing the pedal 703, and this insures easy enmeshment of the gears.

- Now, as soon as the coupling gears have been enmeshedbythis initial 0 eration, the further movement of the peda 703 effects the main cranking movement. The movable element 98 of the main switch is shifted into dotted line 'tion, (see Fig. 9, and'the circuit just above will broken and the following circuit will beestablished:

From the battery 430, through the wire 440, common contact plate '103, movable element 98o); the'main switch, contact plate the low resistance armature windings of t eelectric machine. These low resistance windings are for convenience designated as 310 in Fig. 9. From these windin s 310,- the current flow's through wire 221 baci to the battery, via wire 222. This circuit may be referred to as the starting or crankingcircuit,-and-one which is brought into effect for the actual cranking OPBIMZIOII.

The i iti'on circuit having meantime been closed y the button 420, the engine will now" begin its self-operation as aresult of this crankin movement.

- If desired the arrangement of the push button 420 for closing the circuit to estabinitial movement, can be such out the circuit arrangements as to carry Patent 1,150,523 abovereferred shown in the to but the garticular form is-not important,

it being su ient merely for the urposes of the present case that the push lautton 420 when depressed, establishes the ignition circuit referred to, and at .the same time provides for giving the starting apparatus the slow initia mo'velnent'to facilitate the coupling of 'the' starting apparatus to the engine.

In this we the operator is sure that in facilitatingt e starting operation, and as a part thereof, he is at the sametime closing liisignition circuit so that he is thus sure i course a preferable operation because less current is thereby utilized from the batter for the ignition purpose. i

Then when it is desired to erase the. operation of the engine, the release button 131' is operated, which releases either one of the buttons 4:21 and 459, in case. they have been depressed for the ignition system operation,

'or to release the vibrator button 420 .in case.

that has been utilized.

The mechanism itself for accomplishing the latching-in. of the various push-buttons of the button releasing devices above referred to,'will now he described. I

Thelgeneral form of. the push button switch is shown in Fig.2. This shows the face'of theswitch wit-h the four previo isly mentioned buttons 420, 459, 421 and 31,

projectingoutwzirdly froui the face.

ThonumeralIOO re resents anonter' casing'having zin e xten ed shell portion .102, 'wherein certain of the operating elements are. contained. These elements include a Fig. 5), on which is mounted a latching detect plate 106'.- sprin'g.107,, secured to the detent plate'at 105 and to projecting pin 108 (which i 104), ho ds the detent plate normally in-on'el spring tension to normal position, but thereposition. This detent plate is adapted to'he oscillated against its spring tension, whenever one of the said puslibuttons is ushed inwardly, and then to return on er its by latchingthe button in its depressed posi- The" ush-- buttons are normally held in outwa position by springs 125 (seeFig 3).

'The inner end o'f each button com rises a? flange 127,- separated from the have ed p'ortion 128 b a'gro'o've 129. The extreme end portion 0 the-button is reduced as at 130.

The location of the beveled portion 128 with reference-to this detentplate'lqfi; 'is

such, (as shown in Fig. 6), that when the button is-pressed inwardly, the beveled portion 128 will strike the edge of the detent plate 106, oscillating it against its springtension enough to let the beveled portion of the button slide by the detent plate, and then articular construction of .the sivitch "button.

.ti0n 128, so thatthis l tivgiledi ,thedetent late, 106 and; late-s it to release anyone of the otherd'epiessedbuttons,

but of course the buttonJm' vouldjnotbe in criteirdstlirough to -the plate ward position.

. locking. mcchanisni, y-a;

scribed, this actual contact closing operation being described presently. As previously referred to, each one of the buttons 420, 421, and 159 may be arranged in this manner to be latched in its normal position for closin the respective contacts.

But, as already re erred to in the original application, of which the present application is a division, the vibrator button .420 may be constructedwithout the-latching prov]:

sion, in which case, obviously, there would be no such groove 129 for latching by the tletent plate;

As is common 1n key latching mechanism of this so'rt, it willhe obvious that the construction of this flange portion 128 would be: such that when any one of the thre buttons} referred to, had been depressed, the depressing of one of tho-othenjor inoperative buttons, \voulcl'oscillate the detent plate, thus releasing the previously latched-in button and then latching inward the ow. operatedgf" i But a releasing but; 131 's 'm vided so that whenganyone of the-fit ree.

lower buttons is depressed and latched, the depressed button, may be released by mere pressinginwardof-the :top button 131."- To f performthis releasing function, the push button 131, hasno latching groove correspending to the groove'il29 biit siinplly has 1* a beveled portion corresponding t rtion stnkes' latched in becausejit has, no latching groove. A springsimilar tothe sprmg125, restores The parts shoti n "in in Fig. 6. nu rient-tetra king detent contact elemems by the rai ing of th ush,

buttons referred miss o'i'iir-m Fig. 4.

Referring to El =1, williboseen. that.

thereleasingbuttonilallto itsfiiormal outof the various pu buttod'bontact "strips,

three of them, Daniel SSQITB-Tafid 60, hire on the under sides; set at view-ing'thse parts I of the switch mechanism f from the under side, as shown in Fig. 4, these three elements are shown in their respective positidnagxtending outwardly from the point of'atta'ch-. ment t'o the main body portion 104.

Considering for exam 1c the contact strip 38, it will. be seen that t 'ere-isanother strip 21 (Fig. 1'),- which overlies contact strip .38.

This strip in Fi 4 is of course not shown, because it is be the button' 421 is depress its inner end 130 (see Fig. 3), first comes in contact with the strip 21, and then presses it downwardly into engagement with 'the strip 3,8 shown in l i I here 18 a similar arrangement of cdn tacts for the other push buttons,and in ad- .dition', for the vibrating button 420, Fi 4,

shows the additional contat'plate 438 w 'c extends outward from the central portion of the switch, so that it may be connected to 'oht the circuit a terminal connected to the wireto fo1low"*- V ignition circuit; of a selective switch comarrangementof diagram- The vibrator button .420

matic Fig. 1.

' strikes directly on the plate 438.

In Fig. 7 is shown the double bindin' post which may conveniently be used wit this type of switch. The meta'l part of the switch, namely the parts 100 and 102 con stitutes the ground portionof the 1 circuit, referred to in die ammatic' Fig. 1. By. this means, the pusfi button 420' is included directly in the circuit. i

The central stud 505 of the bindingjpost shown in Fig. 7, passes through the' sup porting plate 104,and occupies'the posit and electrical Mon at the central portion of theswitch shown in Fi 4. Thus, the central ortion 505 'of the inding post is ifrrnec anical connection with the supportin plate 104' and thus froundedl The 'ot er extremity of the bin ing postdias a clamping element 472. The wire 441 is connected to the clamping element 472, and thus to the supporting plate 104, which constitutes the ground connection to connect this circuit to the push button 420.

Surrounding the. center portion 505 is an insulatin sleeve 506. ThlS in turn is surrounded hy a sleeve 507 which is reduced at 508, to form an abutment for the coil s ring 509. Over the sleeve 507 is a sliding eeve 507. i This sleeve is adapted to move to the left in Fig. 7, against the tension of the spring 509, so-that the contact terminal 439 may he slipped in between the slidin sleeve 507 and the body portion of the inding post. The effect of thisis to connect the wire 439 to the metallic sleeve 507'.

ind strip 38.- But, when Then this entire bindin' post is screwed into the center ortion of t e switch, so that the under shou der of the sleeve 507' comes directly in contact with the contact plate 438, shown in Fig. 4. That is, in Fi 4, it is to be understood that this double binding post -1s secured directllyzinto the central portion of the switch itse so as to bring the sleeve 507 into contact with the plate 438, as described.

- The effect of this is to connect the wire .439 tothe plate 438, in the manner explained in diagrammatic Fig. 1. At the same time. the wire 441 is shown in Fig. 7 as connected to the other terminal cli 472 vof the binding post, whereby to groun this wire and thus connect it to the push button 420 and in this manner carry out the die-- grammatic showing of Fig. 1. -While the above described mechanism constitute a preferred form of embodiment of our invention, itis to be understood that other forms might boutilized within the sec of the claims which follow;'

what is claimed is as follows:

1. In a system of electrical. distribution, the combination with an electric machine having a slow initial starting circuit and an prising an element for closing the starting circuit concurrently with the closing of the ignition circuit.

2. In a system of electrical distribution, the combination with an electric machine having a slow initial starting circuit and af plurality of ignition systems; of a selective switch for controlling the ignition systems aud'starting circuit, where ythe starting circuit and the ignition systems may be brought into operation concurrently or the ignition systems mafy be brought into operatron independent 0 the startinghcircuit. In a system of electrical stribution,

the combination with an electric machine,

crating element for con-- currently. controlling the closing of the-stai'ting circuit and the establishing of the vibrating spark circuit.

4. In a system of electrical distribution, the combination with an electric machine, having a slow initial starting circuit, and i ition systems of the magneto e, single sgiirk battery type and vibrating sfigk type; of a selective switch for contro g said starting circuit and ignition systems, comprisin independent elementsjor controlling t e magneto type of ignition and the single spark battery type of ignition;

and an independent operating element for concurrently controlling the closing of the starting circuit and the establishing of the vibrating spark circuit; and means cooperating with said controlling elements, whereby all of said elements may be operated concurrently.

5. In a system of electrical distribution, the combination with an electric machine, having a slow initial starting circuit, and ignition systems of the magneto type, single spark buttery type and vibrating spark type; of a selective switch for controlling said starting circuit and. ignition systems, comprising independent elements for controlling the nnigneto type of ignition and the single spark battery type of ignition; and an independent operatin element for concurrently controlling the closing of the starting circuit and the establishing of the vibrating spark circuit; and means for maintaining the elements for controlling the single spalrk battery type of ignition and the magneto type in operative position without interfering with the operation of the element for controlling the starting circuit.

6. In a system of electrical distribution, the combination with a starting andignition system for combustion or explosion engines; of a selective switch including a. ush button element operable to efl'ect t einitial operation of the starting system to fac litate the connection ofthe startin system with the engine and to concurrent y brin said ignition system into operative con ition,

whereby ignition will be furnished to the engine, incident to the starting operation thereof.

7. In a system of power distribution and control, the combination with an en e; of a starting a centre ling element for imparting a slow initial movement to said starting system, incident to the establishment of the ignition system.

In testimony whereof we aflixour signatures in the presence of two subscribing witnesses.

CHARLES E. KETTERING. WILLIAM A. CHRYST. ir-st Do Q. D. Mowxn and ignition system there or; and

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