GB801685A - Improvements in or relating to sparking plugs - Google Patents

Improvements in or relating to sparking plugs

Info

Publication number
GB801685A
GB801685A GB889655A GB889655A GB801685A GB 801685 A GB801685 A GB 801685A GB 889655 A GB889655 A GB 889655A GB 889655 A GB889655 A GB 889655A GB 801685 A GB801685 A GB 801685A
Authority
GB
United Kingdom
Prior art keywords
protrusion
central electrode
ins
diameter
plugs
Prior art date
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
Application number
GB889655A
Inventor
Maxey Hungerford Bland
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LODGE PLUGS Ltd
Original Assignee
LODGE PLUGS Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by LODGE PLUGS Ltd filed Critical LODGE PLUGS Ltd
Priority to GB889655A priority Critical patent/GB801685A/en
Publication of GB801685A publication Critical patent/GB801685A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01TSPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T13/00Sparking plugs
    • H01T13/20Sparking plugs characterised by features of the electrodes or insulation
    • H01T13/32Sparking plugs characterised by features of the electrodes or insulation characterised by features of the earthed electrode

Landscapes

  • Spark Plugs (AREA)

Abstract

801,685. Sparking plugs. LODGE PLUGS, Ltd. Jan. 12, 1956 [March 26, 1955], No. 8896/55. Class 7(4) The insulator 11, at that end thereof which is adjacent the firing tip of the central electrode 12 and is of reduced diameter to lie out of surface contact with the plug body, has axially projecting therefrom a small protrusion 15 of relatively narrow diameter the outer radial end face 16 of which lies flush with the end of the central electrode 12. The protrusion may be parallel throughout its length on the major part thereof but is preferably tapered. The earthed electrode may be tapered at its free end (Fig. 2). The end part 14 of the central electrode is preferably of platinum. The diameter of the end 14 of the central electrode may be in the region of 0.02 ins. while the external diameter of the annular end face 16 of the protrusion 15 is approximately 0.06 ins. The axial length of the protrusion may be 0.03 ins.
GB889655A 1955-03-26 1955-03-26 Improvements in or relating to sparking plugs Expired GB801685A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB889655A GB801685A (en) 1955-03-26 1955-03-26 Improvements in or relating to sparking plugs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB889655A GB801685A (en) 1955-03-26 1955-03-26 Improvements in or relating to sparking plugs

Publications (1)

Publication Number Publication Date
GB801685A true GB801685A (en) 1958-09-17

Family

ID=9861391

Family Applications (1)

Application Number Title Priority Date Filing Date
GB889655A Expired GB801685A (en) 1955-03-26 1955-03-26 Improvements in or relating to sparking plugs

Country Status (1)

Country Link
GB (1) GB801685A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2421585A1 (en) 1973-07-05 1975-01-30 Champion Spark Plug Co SPARK PLUG
EP0073939A1 (en) * 1981-08-20 1983-03-16 Robert Bosch Gmbh High-tension spark plug
EP0101547A2 (en) * 1982-08-14 1984-02-29 Robert Bosch Gmbh High-tension spark plug

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2421585A1 (en) 1973-07-05 1975-01-30 Champion Spark Plug Co SPARK PLUG
DE2463438A1 (en) * 1973-07-05 1985-07-04
EP0073939A1 (en) * 1981-08-20 1983-03-16 Robert Bosch Gmbh High-tension spark plug
EP0101547A2 (en) * 1982-08-14 1984-02-29 Robert Bosch Gmbh High-tension spark plug
EP0101547A3 (en) * 1982-08-14 1984-08-22 Robert Bosch Gmbh High-tension spark plug

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