GB546191A - Improvements in spark plug insulators - Google Patents

Improvements in spark plug insulators

Info

Publication number
GB546191A
GB546191A GB3680/41A GB368041A GB546191A GB 546191 A GB546191 A GB 546191A GB 3680/41 A GB3680/41 A GB 3680/41A GB 368041 A GB368041 A GB 368041A GB 546191 A GB546191 A GB 546191A
Authority
GB
United Kingdom
Prior art keywords
magnesium
added
per cent
alumina
plug insulators
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
GB3680/41A
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.)
Motors Liquidation Co
Original Assignee
Motors Liquidation Co
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 Motors Liquidation Co filed Critical Motors Liquidation Co
Publication of GB546191A publication Critical patent/GB546191A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
    • C04B35/111—Fine ceramics

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

546,191. Spark-plug insulators. GENERAL MOTORS CORPORATION. March 18, 1941, No. 3680. Convention date, April 23, 1940. Addition to 481,769. [Class 22] Spark-plug insulators of the kind described in the parent Specification are prepared from a mixture of 95 per cent. alumina, 3¢ per cent. zircon and 1¢ per cent. talc, or substances yielding the same chemical composition. The raw materials are finely ground, moulded with the aid of a thermo-plastic resin and fixed at 1530-1730‹C. Alumina is introduced as calcined alumina, diaspore or bauxite or in the combined form as clay, silimanite, magnesium aluminate or magnesium aluminium silicate. Zirconia is added as such or as zircon or magnesium zirconium silicate. Magnesium is added as such or as carbonate, or forsterite. Silica may be added in crystalline, amorphous or combined form.
GB3680/41A 1940-04-23 1941-03-18 Improvements in spark plug insulators Expired GB546191A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US546191XA 1940-04-23 1940-04-23

Publications (1)

Publication Number Publication Date
GB546191A true GB546191A (en) 1942-07-01

Family

ID=21992350

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3680/41A Expired GB546191A (en) 1940-04-23 1941-03-18 Improvements in spark plug insulators

Country Status (1)

Country Link
GB (1) GB546191A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE974384C (en) * 1950-01-31 1960-12-08 Werner Dr-Ing Scholz Radio suppressed spark plug

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE974384C (en) * 1950-01-31 1960-12-08 Werner Dr-Ing Scholz Radio suppressed spark plug

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