US945066A - Sparker or igniter. - Google Patents

Description

UNITED-,STATES PATENT current.

WALTER c. wns'rAwAY, or BnLorr, WISCONSIN, Assrenon, BY eraser AND ians'Nn i ASSIGNMENTS, 'ro J. W, DUNTLEY, orcnrcAGo, rLLrNors.

SPARKE'R oa IGNITER.

'Specication of Letters Patent:

latented J an. 4, 1910.

[o all whom tt may concern: Be it known that I, WALTER C. Wns'rA- WAY, a citizen of the United States, residing at Beloit, county of Rock, and State of Wisconsin, have invented certain new and ilseincreasing the first cost of the device.

flo this end my invention consists in the novel construction, arrangement, and combination of parts herein shown and described and more claims.

In the accompanying drawings wherein like or similar reference characters ,indicate like or corresponding parts,"Figure l'is an elevation of an igniter attached in -a comparticularly pointed out in the bustion chamber. Fig. 2 is a sectional View of part of a combustion chamber showing an igniter plug with parts broken away to more clearly show the construction. Fig. 3 is a section taken on line3-3 of Fig. 2. Fig. 4'

is a section similar to that shown in Fig. 3 showing a slightly modified form of ignitcr points. l i

In the. drawings I have shown my improvement in connection with a simple form of igniter mechanism arranged in operative relation with the combustion chamber of an. Q internal combustion engine or similardevice.V

As shown 1 is the combustion chamber;

above referred to, and 2 is an ignitei plug,

of the usual or any preferred constructiom secured into the wall 'of the combustion provided with the electrode able material,l the e ectrode rod 3 bein pro-4 vided with a suitable head 7 upon t e in# terior of the combustion chamber to which the electrode or contact member 8 is attached. The outer end of the electrode rod 3 is provided with a washer 9 and a nut 10,

by which the electrode rod is rigidly secured in place by clamping the insulated washers 6 6 firmly against the surfaces of the plug 2 between the head 7 and nut 10. A. second nut 11 or equivalent means is arranged upon the outer end of the electrode rod 3 to provide suitable means for firmly attaching an electrical conductor'12 to the electrode rod 3 shown.

The electrode rod 4 is partially rotatable and extends through a suitable opening in the plug 2 and is provided upon its inner end With a head 14 arranged to'bear against the inner face of the plug 2, and having a lateral extension, 15 provided to carry an electrode or Contact member 16 in suc-li a position that by a partial rotation of the electrode rod 4 the face of the electrode lo will be brought into contact with the face of the electrode 8.

A sleeve 17 is fitted upon the electrode rod 4 outside the'plug 2 and rigidly fixed in position upon'the electrode rod by means oi a. .pin 18 or other suitable means for the purpose.` v

nut 19 o'r equivalent means is provided upon the outer end 'of the electrode rod 4 to provide means for attaching an electrical conductor 20 thereto. Obviously as the electrode rod 4 may sometimes not be insulated 'from'. the plufn2 orother parts of the conibstioncham er; if preferred the conductor 120 may, in Such cases, be attached to suoli 'other parts as desiredandaccomplish the same resultas when connected as shown.`

'flier spring; 21`is provided preferably in forml sliowfnwithA one end attached to a upon the .pliig2 and the other end at- "taefiedftoan armQfZ upon the sle ve iT' to 9 Anormally,'maiirit'ain the electrode rod 4 in a lp'osition" in Whichthe member 16 is not in Y contact; with the member 8.- A spring 23- or 'equivalent part may be, attached .to the sleeve 17"'by means of the bracket 24 with its free end" extendedin position to be engaged by a hook 25' or other partwhich is moved in a suitable manner by'means of a crank, cam, or other suitable part, .carried by a suitable movable portion of the engine or device upon.

igniter 1s describedo but my invention re ates yonly to the electrode or contact members 8 and 16v usually known as igniter points or contact points shown in section in Figs. 3 and -l-. These contact members may be of any desired form or size, but provided with a Contact surface only near their peripheries.

In the form shown in F ig. tubular contact nienibers are provided, in this form an opening n? extends longitudinally entirely through each member providing a passage for spreading the flame started at the contact surfaces, thus greatly increasing the initial etl'ective area of the ignition. 1n the orin shown in Fig. 1i: the meinberl is provided with the opening 27 as above described and the member 8 is provided with a plain tlat surface; this form while not as effective as the form shown in F ig. 3 is greatly superior to the usual form of electrode or contact member. Une advantage of these forms of electrodes not heretofore mentioned, is that the contact area is maintained and the well known tendency of the contact members to wear to a. point by the action of the electric current and the heat of the combustion chamber is apparently entirely overcome. Also apparently owing to the rush of gas from the interior of the electrodes at each ignition, the faces of the electrodes as well as the interior oiI the opening 2T are free from the usual annoying tendency to accumulate a coating of soot or other dirt.

In my improved points it is proved by actual practice that the above i'nentioned tend-f ency is obviated or reduced to a minimum, and that the points keep clean upon their contact faces and produce a much larger and iiiore intense spark than with the usual fiat or solid points.

Having thus described my improvement,

obviously immaterial modifications may be made without departing from the spirit of my invention hence I do not wish to be understood'as limiting myself to the exact form and construction shown.

What l claim as new, and desire to secure by Letters Patent is:

1. In a device or" the kind described, electrodes provided with cooperating flat meeting surfaces which contact only near the periphery or" each, one of said electrodes cony sisting of a tubular member having a direct passage entirel therhrough, with a Contact surface forme at one end.

2. In a device of the kind described, electrodes provided with cooperating meeting surfaces, each electrode consisting of a tubular member having a. direct passage entirely therethrough, with a contact surface formed at one end.

3. ln a device of the kind described, electrodes provided with similarly formedflat meeting surfaces which contact only near their periphery, each'electrode consisting of a member with an opening formed longitudinally therethrough and having a contact surface formed at one end about said opening.

et. ln a device of the kind described, a combastion chamber, a tubular electrode open at both ends positioned within said chamber,

and means attached to said electrode to 0perate the same ,to make and break an electric circuit.

5. In a device or' the kind described, a combustion-chamber, a stationary and armovable electrode positioned within said chamber, one of said .electrodes consisting of a tubular member open at both ends, and means attached to said movable' electrode to operate the sa-me.

6. In a'device 0I' the kind described, a combustion chamber, a stationary and a movable electrode positioned within said chamber, each electrode consisting ot' a tubular inember open .at both ends 'with an annular con tact surface formed upon its end, and means attached to said movable electrode to operate the same.

T. An igiiitei'for internal combustion engines, comprising a stationary electrode and a movable electrode, one of said electrodes comprising a hollow tube open at both ends.

8.. An' igniter for internal combustion engines, comprising two relatively movable electrodes, each formed of a tube open at both ends.

S). Au ignitei for internal combustion en` gines, comprising two relatively movable clectrodes, each formed of a tube open at both ends, said tubes being in alinement during the igniting action.

'10. An igniter for internal combustion engines, comprising two rods, means for insu lating them from the engine proper, an electrode upon the inner end of one of said rods, and comprising a hollow tube open at both ends and adapted to be moved to a position with one end adjacent one end of the other electrode. and means foi-oscillating the first mentioned rod.

In testimony whereof, I have hereunto signed my name in the presenceof two (2) subscribing witnesses.

WALTER C. VESTAWAY.

Witnesses J. G. 1iVionHnrvi, M. L'. TREADwAY.

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