General Information

Serial #

N/A

Part Number

1

Total Parts

2

AKA

N/A

Patents

N/A

General Description

.1 METAL BASE & ELECTRODE, PORCELAIN INSULATOR, COPPER WASHERS/.2 CARDBOARD

Dimensions

Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.

Length

9.0 cm

Width

3.4 cm

Height

3.4 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Motorized Ground Transportation

Category

Automotive engineering

Sub-Category

N/A

Manufacturer

AKA

AC Spark Plug

Country

United States of America

State/Province

Michigan

City

Flint

Context

Country

Canada

State/Province

Ontario

Period

C. 1928

Canada

FROM COLLECTION OF AUTOMOBILE PTS & SERVICING EQ ACQUIRED BY MR. T.H. OLIVER, FATHER OF DONOR, DURING CAREER IN AUTOMOTIVE SERVICING. AFTER WORKING AT WILLYS-OVERLAND & FAIRBANKS-MORSE IN TORONTO, & IN AUTO GARAGE IN AURORA, IN 1931 HE BEGAN HIS OWN BUSINESS, ONE PART OF WHICH INVOLVED AUTOMOTIVE ELECTRICAL SERVICING.

Function

PART OF IGNITION SYSTEM OF INTERNAL COMBUSTION ENGINE; SPARK PLUG IS FITTED INTO CYLINDER OF ENGINE TO PROVIDE PAIR OF ELECTRODES BETWEEN WHICH IS PASSED ELECTRICAL DISCHARGE OR SPARK WHICH IGNITES MIXTURE OF GASOLINE VAPOUR & AIR.

Technical

EARLY PORCELAIN PLUG WITH CANFIELD BASE USED IN NUMBER OF CONFIGURATIONS ON WIDE RANGE OF AUTOMOBILES OVER NUMBER OF YEARS, INCLUDING 1927 OLDSMOBILE, STUDEBAKER MOST MODELS, 1927 RIO, VELIE ALL MODELS, WILLYS-KNIGHT MOST MODELS, 1927-1929 FALCON-KNIGHT, HAYES TO 1924 ETC (REF. 1)

Area Notes

Unknown

Details

Markings

.1 BLACK "AC/ E4 1/2" ON INSULATOR; INCISED "MADE IN U.S.A." ON BASE/.2 ORANGE & BLACK LETTERING ON BOX ENDS READS "AC/ LONG-LIFE E-4 1/2" & ON BOX SIDES "AC/ SPARK/ PLUGS/ A.C. SPARK PLUG COMPANY - FLINT, MICHIGAN, MADE IN U.S.A." WITH PATENT INFO.

Missing

.1 END OF ELECTRODE

Finish

.1 DARK GREY BASE, WHITE PORCELAIN, COPPER COLOURED WASHERS/.2 BUFF & NAVY BLUE

Decoration

N/A