US888711A - Sparking plug. - Google Patents

Description

7N0. 888,711 PATBNTBD MAY 26, 1908.

L. KANTROWITZ.

$PARKING PLUG.

APPLICATION FILED MAR.6.1907.

In ventor:

{my W- circuited. As is well known, the carboniz which is caused by soot deposits during the between the tips ofthe electrodes.

, repaired or replaced.

scribed;

in connection withthe illustration in the tended up nearly to its tip'. The other ele'c- ,mg had to the-accompanying drawings, formsparlil'ig' p'iug" veifigines, and the like in of an electric sparkiiin whichsparking. plug said path of lower resistance without pro -ments, the insulation around one of the. elecing a, stem 1) and thumb nut c, which nut holds the stem and .casing together. One of I the electrodes (2 preferably projects from the.

the plug. The stein may be made of'po rc'e- I KAusrRoWrrz,

once'i'h: v H yLours KA-NTROWITZ, "a' States and a resident I t nh attan, of the city of Q p 4 unty and State of New Yo av certain new and useful Improvement parking Plugs, of which w,- ii-wt LEA the follow ng 1s a specification, reference ber m-ail A mg a part hereof. p

The ob ect ofthe invention is to provide, a

which the combustion is'effected by means the electrodes shall nlo't readily become short ing of the electrodes and adjacent parts,

operation of internal combustion engines, soon produces a path of lower resistance for the lgnitlng clrcuit than that across the gap The high tension current then passes through ducing the re uired sparln The spark plugthus iails to e feet the ignition and has to be In accordance w1ththe present improvetrodes is provided with a vibratory orotherwise movable member or members in orderto prevent the permanent lodg'ment of soot, and in the present case this is effected bysurrounding one of the electrodes with nonconductingplate's as. willpresently be'de- The invention will be more fully described drawings of a suitablev embodiment of the invention; 1

' In said drawings the.single.figure reprs sents partly in section and partly in elevation,' a sparking plug containing the improvements.

, The plug may have theusual body or cas inner end ofthe casinga and'is covered with a suitable'insulatmg material e wlnch s-eX:

tr'ode j is preferably straight and projects substantially from thecenter of the stem of UNITED .srn'rnsi...

a'rnn'r oFFrcE;

H' Patented May 2T62 j 907; seriai No. 3611931.

. lain or of any other suitable material and "513} inner end is preferably corrugated as shown.-

Around theelectrodej, a plurality of nonconducting plates '9 are mounted. beingslightly separated. from each other, as" by still smaller disks h, and preferably forming a .series of disks-decreasingin size toward the endof the electrodef. The. other elec-- trode d may be curvedso that its up er end b or tip is brought within the. proper istance from the end of the electrode], the curvature. of the electrode dvconfor'ming in general to thesloping of the edges of the series of disks.

The disks are formed preferably of'mica' and are mounted so as to be capable of vibrating or otherwise moving to a slight degree; and this may be accomplished by fitting v them upon the electrode securely enough to retain them but not rigidly enough'to pre- Means such as a washersmay be provided to retain thQdlSkS if necessary.

The provision ofthe disks, as will beobvi' ous, will prevent the formation of sootjacross the inner end of the stem b between the "elecvent themfrom having somer'reedom of move-. ment. In this way the jar produced by the operation of the engine'will cause the disks to vibrate more or less.

trodes, and the vibration of the disksfwill odged deposit thereon. The soot therefore cannot readily bridge itself across from one electrode to the other and thus cause-a short circuit in themanner heretofore pointed out.

. i It will be clear that the disks may be more or less resilient and hence may'vibra'te sufliciently even'when they are'made quitetighttothe electrode. However, it is preferable to mounttheni ioosely upon the electrode, as

- was stated hereinbefore. 'Itwill be clear-too that it will be possibleto change the confj prevent the formation of a 'permanently" structionfof the plug inunany particulars" without departing front the spirit .of the-Jim ventlon.

I claim asimy inventionz' i 1. In a-sparking plug, the combination bf an electrode, and insulation around thesarne." havil'ig armaportion and a- Vibrating por-- tion.

' 2. In a sparking plug, lfi e onlbinafi l- I an electrode and'a lurality of non-conduct:

ing plates nioun'tei to vibrate on. the same and slightly .separated from each other. 3. In a sparking plug,.the'colnbinationof an electrode, aplurality of non-conducting" electrode. v

in a sparking plug, the combination of an electrode projecting centrally therefrom, an electrode projecting from one side, and a pinraiitv of plates of a non-conducting ma.- niounted to vibrate on the first electrode and separated from each other.

5. in a sparking )lug, the combination of straight GlBCt-IOC e projecting centrally therefrom, a curved electrode projecting from one side, and a plurality of non-conducting plates mollntedto vibrate aro und the first electrode and slightly separated from each.

other.

In a,- sparking plug,the combination of anelectrode, and a plurality of non-conduct- Y disks mounted to vibrate around the electrode. I v

' in a sparking plug, the combination of means for maintaining the plates upon the an electrode and a serles of non-conducting disks'loosely mounted around the electrode and decreasing in size toward the end of the electrode.

8. In a sparkin plug, the combination of a straight electro e projecting therefrom, a

the end of-the electrode, and a curved electrode rojectingl'rom one side.

9. I a sparking plug, the combination of the two electrodes, and an oscillating interrupter of nonconducting material on one of the. electrodes to prevent the formation of a continuous line of soot between the electrodes.

This s )ecification' signed and witnessed this 2nd ilay of March 1907.

Lotus KAN'IROWIIZ.

Images