US1363380A - Joint for sparking plugs and the like - Google Patents

Joint for sparking plugs and the like Download PDF

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Publication number
US1363380A
US1363380A US300342A US30034219A US1363380A US 1363380 A US1363380 A US 1363380A US 300342 A US300342 A US 300342A US 30034219 A US30034219 A US 30034219A US 1363380 A US1363380 A US 1363380A
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United States
Prior art keywords
joint
insulator
sparking plugs
ring
shell
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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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US300342A
Inventor
Zimmermann Desire
Plattier Clovis
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Individual
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Individual
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Priority to US300342A priority Critical patent/US1363380A/en
Application granted granted Critical
Publication of US1363380A publication Critical patent/US1363380A/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

  • This invention relates to improvements in joints for sparking plugs and the like.
  • a tight joint is ob tained by means of a ring or washer or" aluminium or the like placed in a circular fiat recess between the insulator and the base of the plug and fitted between these two parts by means of a circular tool.
  • the insulator of the plug is in two parts A, and B, 01": porcelain, steatite or the like, partially fitting one in the other.
  • the part .B has a conical shoulder which bears on another shoulder, which is also conical, arranged inside the metal base or shell F.
  • the part A rests on an aluminium ring 0 which bears on a fiat seat in the body F and on a similar seat formed on the part B.
  • the central electrode E is threaded and carries a nut G abutting against the part A and holding the parts A and B together.
  • the central electrode E has a circular shoulder forming a joint on a metal ring H lodged in a circular recess in the low r part of the insulator so that by tightening up the nut G the joint is maintained.
  • ing piece B is obtained by compressing by means of a circular, conical tool, a thick washer C of aluminium to jam it by pressure between the two parts F and B.
  • the conical circular groove I is formed by forcing back the metal of the washer C by the tool.
  • the parts are then assembled to form an integral piece.
  • This joint formed by the spinning of a malleable metal can be applied to all types or" plugs.
  • a spark plug comprising a shell, a two-part insulator, one part thereof being seated within the shell, a metallic ring within the shell and securing said insulator part its seat, and means for retaining the other insulator part in contact with said ring.
  • a spark plug comprising a shell, a pair of tubular insulator members, a metallic ring within said shell for retaining one of said insulator members therein, said ring being provided on one side thereof with an annular groove, and means for securing the other insulator member in contact with said ring along the edges of said groove.

Description

D. ZIMMERMANN AND C. PLATTIER.
JOINT FOR SPARKING PLUGS AND THE LlKE.
APPLICATION FILED MAY 28,1919.
Patented Dec. 28, 1920.
UNlTED PATENT OFFICE.
DESIRE ZIMIVIERMANN AND CLOVIS PLATTIER, OF MARSEILLE, FRANCE.
JOINT FOR SPARKING PLUG-S AND THE LIKE.
Application filed May 28, 1919.
To all whom it may concern.
Be it known that we, Diisimi Zmnrnn- MAN and CLovls PLATTIER, citizens of the Republic of France, residing at 12 Rue dJ na, Marseille, France, have invented new and useful Improvements in and Relating to Joints for Sparking Plugs and the like, of which the following is a specification.
This invention relates to improvements in joints for sparking plugs and the like. According to the invention a tight joint is ob tained by means of a ring or washer or" aluminium or the like placed in a circular fiat recess between the insulator and the base of the plug and fitted between these two parts by means of a circular tool.
The invention is described with reference to the accompanying drawing in which one form of construction according to the present invention is illustrated in vertical sec tion. v
The insulator of the plug is in two parts A, and B, 01": porcelain, steatite or the like, partially fitting one in the other. The part .B has a conical shoulder which bears on another shoulder, which is also conical, arranged inside the metal base or shell F. The part A rests on an aluminium ring 0 which bears on a fiat seat in the body F and on a similar seat formed on the part B.
The central electrode E is threaded and carries a nut G abutting against the part A and holding the parts A and B together.
The central electrode E has a circular shoulder forming a joint on a metal ring H lodged in a circular recess in the low r part of the insulator so that by tightening up the nut G the joint is maintained. The joint between the body F and the insulat- Specification of Letters Patent.
Patented Dec. 28, 1920. Serial No. 300,342.
ing piece B is obtained by compressing by means of a circular, conical tool, a thick washer C of aluminium to jam it by pressure between the two parts F and B. The conical circular groove I is formed by forcing back the metal of the washer C by the tool.
The parts are then assembled to form an integral piece.
This joint formed by the spinning of a malleable metal can be applied to all types or" plugs.
Having now particularly described and ascertained the nature of our said invention and in what manner the same is to be performed, we declare that what we claim is l. A spark plug, comprising a shell, a two-part insulator, one part thereof being seated within the shell, a metallic ring within the shell and securing said insulator part its seat, and means for retaining the other insulator part in contact with said ring.
:2. A spark plug, comprising a shell, a pair of tubular insulator members, a metallic ring within said shell for retaining one of said insulator members therein, said ring being provided on one side thereof with an annular groove, and means for securing the other insulator member in contact with said ring along the edges of said groove.
In testimony whereof we have signed our names to this specification.
L. RoNDmR, OUY MOXKET.
US300342A 1919-05-28 1919-05-28 Joint for sparking plugs and the like Expired - Lifetime US1363380A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US300342A US1363380A (en) 1919-05-28 1919-05-28 Joint for sparking plugs and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US300342A US1363380A (en) 1919-05-28 1919-05-28 Joint for sparking plugs and the like

Publications (1)

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US1363380A true US1363380A (en) 1920-12-28

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US300342A Expired - Lifetime US1363380A (en) 1919-05-28 1919-05-28 Joint for sparking plugs and the like

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6285008B1 (en) 2000-01-11 2001-09-04 Federal-Mogul World Wide, Inc. Ignition plug and method of manufacture

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6285008B1 (en) 2000-01-11 2001-09-04 Federal-Mogul World Wide, Inc. Ignition plug and method of manufacture

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