General Information

Serial #

673910

Part Number

1

Total Parts

1

AKA

N/A

Patents

N/A

General Description

Metal/Glass/Wood

Dimensions

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

Length

N/A

Width

25.4 cm

Height

38.1 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Energy-electric

Category

Measurement

Sub-Category

N/A

Manufacturer

AKA

General Electric

Country

Canada

State/Province

Ontario

City

Toronto

Context

Country

Unknown

State/Province

Unknown

Period

Unknown

Canada

Typical example used in industrial applications.

Function

Ammeter used as standard in early period of alternating current. Could also be used on direct current.

Technical

AC - Thompson Horizontal type. Contains counterweight mechanism for efficiency of moving parts (invented by Willard Porter of GE in Lynn, Mass. 1914). Design: "All horizontal edgewise instruments are of uniform size, thus presenting a pleasing appearance when installed." Can. GE catalogue, no. 15, p. 856.

Area Notes

Unknown

Details

Markings

Mfr's plate reads: "CANADIAN GENERAL ELECTRIC CO. LIMITED A-113627 TORONTO, ONTARIO, CANADA" Name plate reads: "ALTERNATING CURRENT AMMETER" Red sticker reads: "CF 104"

Missing

N/A

Finish

Lengthwise gauge on the front/ Glass covered/ Indicator travels in its center slot/ Graduated from 0 -30 by 0.5 amp increments/ Rest of case is metal, painted black/ Mounted on an L-shaped frame of 3/4" plywood/ Mounted with 2 brass screws protruding from back/ Wooden stand has handle carved out near its top/ Good, but dirty.

Decoration

N/A