US1011595A - Spark-plug. - Google Patents

Spark-plug. Download PDF

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Publication number
US1011595A
US1011595A US60921711A US1911609217A US1011595A US 1011595 A US1011595 A US 1011595A US 60921711 A US60921711 A US 60921711A US 1911609217 A US1911609217 A US 1911609217A US 1011595 A US1011595 A US 1011595A
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United States
Prior art keywords
spark
plug
casing
electrode
arms
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US60921711A
Inventor
Charles C Eldridge
Edwin J Beebe
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Individual
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Individual
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Priority to US60921711A priority Critical patent/US1011595A/en
Application granted granted Critical
Publication of US1011595A publication Critical patent/US1011595A/en
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Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T13/00—Sparking plugs
    • H01T13/46—Sparking plugs having two or more spark gaps
    • H01T13/467—Sparking plugs having two or more spark gaps in parallel connection

Definitions

  • the object oitI this invention is to produce an improved spark plug adapted to draw a large spark and one which will need cleaning less frequently than .plugs heretofore produced.
  • Figure 1 is 'a side elevation of a spark plug embodying the features of our invention.
  • Fig. 2 is an end view, and
  • Fig. 3 a longitudinal central section through the plug.
  • the present embodiment of ourinvention comprises a casing l, in this instance in the form of a bushing adapted to be screwed into an engine cylinder.- Within the casing is secured an insulating member 2 and extending through said insulating member is a rod 3 forming one of the electrodes of the spark plug. Upon the upper end of the rod 3 is mounted suitable means 4 for attaching an electric conductor to the rod.
  • the other electrode 5 of the plug consists of a Wire of general U shape", the free ends of the arms ot the electrode being secured in the endV ot the casing l in any suitable way.
  • the outer portion of the electrode is shaped to lie more or less'closely along thev end portion of the central electrode tor a considerable distance.
  • trode is not easily bent out ot' position in cleaning the plug when cleaning becomes necessary.
  • a bushing-like casing adapt in combination, a bushing-like casing adapt,- ed to be screwedinto an engine cylinder, an insulating member in said casing, an elect-rode in the-form of a rod lying within said insulating member, means at one ⁇ v end of said electrode for attaching an electric wire thereto, the opposite end of said electrede projecting a relatively great distance" beyond the end of said casing, and 'a second electrode comprising a wire bentat its middle portion to torni two arms, the ends of which'are fixed in the end ofthe casing, the outer end of said arms adjacent tosaid bend being shaped to lie at opposite sides ot said l

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  • Spark Plugs (AREA)

Description

C. 0. BLDRIDGE @L RJ. BBEBB. SPARK PLUG.
APPLICATION FILED FEB. 17, 1911.
1,01 1,595. -Pantedea 12,1911.
f f@ fra STARS oFFiCE-.f
CHARLES C. yELD:RIDGE AND EJWIN J. BEEBE, OF MARSHALLTOWN, IOWA.
SPARK-PLUG.
Specification of Letters Patent.
Patented Dec. 12, 1911.
Application filed February 17, 1911. Serial No. 609,217.
Iprovements in Spark-Plugs, of which 'the following is a specification.
The object oitI this invention is to produce an improved spark plug adapted to draw a large spark and one which will need cleaning less frequently than .plugs heretofore produced.
In the .accompanying drawings, Figure 1 is 'a side elevation of a spark plug embodying the features of our invention. Fig. 2 is an end view, and Fig. 3 a longitudinal central section through the plug.
The present embodiment of ourinvention comprises a casing l, in this instance in the form of a bushing adapted to be screwed into an engine cylinder.- Within the casing is secured an insulating member 2 and extending through said insulating member is a rod 3 forming one of the electrodes of the spark plug. Upon the upper end of the rod 3 is mounted suitable means 4 for attaching an electric conductor to the rod. The other electrode 5 of the plug consists of a Wire of general U shape", the free ends of the arms ot the electrode being secured in the endV ot the casing l in any suitable way. vAs shown in the drawings, the outer portion of the electrode is shaped to lie more or less'closely along thev end portion of the central electrode tor a considerable distance. By reason oi this shape of the lower end of the electrode 5 a relatively' large spark is formed between the two electrodes when an electric circuit is closed throughv the spark plug.
It will be observedthat the electrodes project outwardly from the end of the casing a relatively great distance, so that the incoming fresh charge of gases in the engine Vcylinder will srveep the burned gases away trom the electrodes and carry any deposit of carbon therefrom, and also the spark will be -formed at a point which will be well surrounded bythe fresh charge of gases. :The
result of'this arrangement is that the electrodes need cleaning much less frequently than they would if they were short and perhaps partially housed by the end et the casmg l.
' ,As will be ur. dcrstood, the connecting portion 5 between the two arms of the electrode 5 stitlfens the arms so that the elec;-A
trode is not easily bent out ot' position in cleaning the plug when cleaning becomes necessary.
Ne claim as our invention:
In a spark plug of the character described, in combination, a bushing-like casing adapt,- ed to be screwedinto an engine cylinder, an insulating member in said casing, an elect-rode in the-form of a rod lying within said insulating member, means at one`v end of said electrode for attaching an electric wire thereto, the opposite end of said electrede projecting a relatively great distance" beyond the end of said casing, and 'a second electrode comprising a wire bentat its middle portion to torni two arms, the ends of which'are fixed in the end ofthe casing, the outer end of said arms adjacent tosaid bend being shaped to lie at opposite sides ot said l
US60921711A 1911-02-17 1911-02-17 Spark-plug. Expired - Lifetime US1011595A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US60921711A US1011595A (en) 1911-02-17 1911-02-17 Spark-plug.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US60921711A US1011595A (en) 1911-02-17 1911-02-17 Spark-plug.

Publications (1)

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US1011595A true US1011595A (en) 1911-12-12

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