US885324A - Sparking mechanism. - Google Patents

Description

PATENTED APR. 21, 1908.

H. G. & G. G. GOULSON.

SPARKING MEGHANISMJ APPLICATION FILED JUNE 24, 1907.

v dbboeng.

T all whom. it may concern:

UNITED STATES PATENT OFFIGE.

HARRY G. COULSON AND CHARLES C. UOULSON, OF JAY COUNTY, INDIANA.

SPARKING- MECHANISM.

Specification of Letters Patent.

Patented April 21, 1908.

Application filed June 24, 1907. Serial No. 380,391.

. Be it known that we, Hann'v G. CoULso-N and CHARLES C. COULSON, citizens of the United States, residing in the county of Jay and State of Indiana, have invented new and useful Improvements in Sparking Mechanism, ofwhich the following is a full, clear, and

v comprehensive. exposition and s ecilication,

being such as will enable others s 'illed in the art to which the invention relates to makeand use the same with absolute exactitude. The object of our present invention, broadly speaking, is the provision of an improved construction .of the class stated designed to give a maximum of mechanical efficiency with a minimum of expense, to provide an electrical sparker constructed on new and improved lines, and in which the item of exense, for installation and inaintenanoa will be ractically nil.

(,ther objects and specific advantagesof our invention will appear in the course of the ensuing specification, and the oints which are new will be correlated in t 1e appended claims.

Our invention is intended primarily to be employed in connection with the explosion chamber of gas'or gasolene engines, and the special feature of our invention which we desire to emphasize is: The lacing of the larger striker-arm, employed in reaking contact of sparker-pomtsand also all springs, upon members other than the sparker shaft.

Probably the best exemplification of the ossibilities and advantages of our invention is shown most clearly in the accompanying drawin s, forming a part of this specihcation, in whic 1 Figure 1 is a plan or face view of our invention as ap lied to the cylinder of an explosion engine. ig. 2 is a vertical part-sectional view of the parts shown in Fig. 1. And Fig. 3 is a detail view of the free end of the adj ustable actuating-arm.

Similar indices denote like parts through out the several views.

In order to render the construction and operation of our invention readily under stood, we will now take up a detail description thereof, in which we will describe the construction and operation of the invention as briefly and as compactly as we may.

i The letteri, designates a portion of the cylinder-wall of an explosion engine, the parts to the right of which, in Fig. 2, are outside and the parts to the left are inside the cylinder. An aperture is formed through the wall into which is threaded the plug or bushing g, which has a central aperture longitu (linally therethrough into which is' rovolubly mounted the sparkcr-shaft a. which is expanded at its inner end whereby it is taper seated at its inner end against the inner end of the plug or bushing 9 whereby said shaft may not he moved outward cndwise.

The letter It designates the contact arm which is integral, or )ermanently secured, to the inner end of the shaft (1, and it is disposed at right-angles thereto and it extends upward some distance as designated in Fig. .2. Extending out from near the upper end of the contact-arm is a terminal or contact-point s.

The letter h designates the insulated electrode which extends throng-lithe wall i being so located as to engage the free end of the arm 7c, and secured in said electrode, is the terminal or contact point 8 which is adapted to contact with the point 8. To the outer portion of "the electrode 7b is attachedthe electric current wire Q. On the outerex tending portion of said plug or bush ng is formed, longitudinally thereof, a bearing face for the large striker armfwhich as is apparent has no direct connection with the shaft a, except by the interposition of the small striker arm I), which latter is secured to the outer portion of the shal t a by the taperpin 0. The letter e designates a helical spring which is convoluted around the shaft 0 but .is separated therefrom by the reduced extension of the plug or bushing 9 whose outer terminal acts as'a shoulder for the inner face ofthe head of the small striker arm 1). One

end ofsaid spring a engages the striker-arm f and the other end thereof engages the arm I), with the torsion of said spring a such as normally to retain said arms in contact with each other.

The letter 1* designates the actuating shaft which is, in this instance, revolubly mounted parallel to the shaft (1. and it is located some distance therefrom. The actuating arm p is adjustably secured, by the set-screw 2, to the shaft 1", and carried by said arm 1) is the spring actuated bevel-end plunger 0, the same being mounted for endwise movements arallel with the arm and being normally 1m elled in a direction from said shaft by the c'oi spring N shown in Fig. 1.

The letter we designates a sto for the arm f, and the letter a designates a-lielical sprin secured at one end to the arm f, and secure travelin' fro v termina point ,9, the "resultant I spark being ,1.

'rests resiliently against the stop at the other end to the wall-i, to retain said arm f normally, in position to, be engaged by the plunger0, and when not engaged said arm f m, at the same time retainlng thetermmis and s apart, as shown in F1 1.

It will. now,be notably ap arent that if the striker arm f be acted upon y the plunger 0,

carried bythe arm p, it will be moved to the 10 -1n-Fig. 1, the shaft 1" continuously revolving] sition in which it is shown inrdottedf lines in the direction indicated by the arrow... It is" also apparent that when-the arm'f moved as described the shaft a will consequently follow in rotation, resiliently, bythe action of the torsion of the spring ,]until the terminal points 8 and s nge against each other; after which the shaft a, and. the arm blwill stop hile-the arm f continues to rotate,-constantly-increasing'the tension of 'thes' ring "e. As soon as the arm p moves far enoug to release the arm ffrom'the plunger o'then the spring e return thea'rm f smartly back against-thearm b,'.thereb'y making an lnstane,

taneous break of the currentfwhich may be the terminal points tomb of the desired sufficiency toi fire the charge containe'd inithe-cylinder."

Itwill readily .be. deter n1ined "tliat the action of the. sparkerli's independent-of the speed ofthe engine, that to'say'of the shaft, 1', andhence there willbe novariation invthe size of. the s ark produced,s while at thesame time it will e perfectly timed. *It isvals'o a" arent that the circuit ,periodica y y roken, the spark being; produced between". the terminalcontacts at eve interruption of. the current,and'that,when tl1 I D e. engine is not f in operation thelcte'rrninal pointswill be Separated, thereby-preventing awasteof current.

It, should be noted; also,*that should} the:

shaft 1' be rotated reversely that'no damage will resultfas the ta er of the lunger. 0Z'w11limpinge thetaper c whe rm -andthereby driyingtheplunger"downinto the arm' 1) un r the p til' the 1points have 'assed each othen after which t e'plunger-W be ilplpelled to its normal position b the s ring Wedesire t at it eundei'steodthatthe.

specific construction of ,the details'i; f the in- "vention in which novel. features, are yembodied, as,well.as the general construction of arts,- "may be I variously changed and modifiedfwithou't altering the.essent1al printably "mounted on the bushing" at a distance from said other arm-but having a portion adapted to contact therewith, a spring coiled about the bushing between sai v operatively connected therewith at. its ,ends, and mean's for actu atingsgaid striker, arm;

2. Sparker' mechanism for] gas" engines, 1

comprlsing a bushing,- haying its outer end port on reduced, asparker shaft within said ushi'ng, I an arm fixed on said shaft; beyond arms and Iaving now fully shown and described our the outer, end 'ofthe bushing, 'a striker arm rotatablymounted Ion the bushing immedi- 'ately in rear ofthe 'reduced' ortion thereof,

being adapted to contact: wit the other arm, a s ring coiled about said' reduced ortion "of t e bushing with" its endsoperative y con;

n ected-with said arm,'and means foractuatirig the -strikerarm, I

n test-unony-"whereof we. have hereunto subscribed; our names n the presence of two subscribing yiritnefsses.

HARRY- G. COULSON.

CHARLES 'O.- COULSONJ.

Witnesses?

Images