Ammeter
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1967.0123.001
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- OBJECT TYPE
- Switchboard AC/Edgewise/Thomson Ammeter/Single Range
- DATE
- 1915–1921
- ARTIFACT NUMBER
- 1967.0123.001
- MANUFACTURER
- Canadian General Electric Co. Ltd.
- MODEL
- Thomson H-2
- LOCATION
- Toronto, Ontario, Canada
More Information
General Information
- Serial #
- 673039
- Part Number
- 1
- Total Parts
- 1
- AKA
- N/A
- Patents
- N/A
- General Description
- Metal/ Glass/ Paper.
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- 21.6 cm
- Width
- 15.9 cm
- Height
- 27.9 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
- Canada
- State/Province
- Quebec
- Period
- Unknown
- Canada
-
Used in Quebec electrical industry. - Function
-
An instrument used for measuring the strength of an electrical current in amperes. - Technical
-
Commercial type ammeter for alternating current. Example of early Thomson H-2 type with range up to 400 amps. Moving Iron type Switchboard Edgewise AC Ammeter. Popular style on switchboards where many meters need to be stacked vertically. This form appeared before the turn of the century and remained popular for decades afterwards. Errors due to parallax are reduced because the pointer is in line with the scale. - Area Notes
-
Unknown
Details
- Markings
- Top mfr. plate reads: "THOMSON [model] AMMETER" Bottom mfr. plate reads: "CANADIAN GENERAL ELECTRIC CO. LIMITED/ TORONTO, ONTARIO, CANADA" Markings found on amp. scale reads: "NO. 673039/ PAT. JUNE 1, 1909 SEP. 28, 1915/ C. TRANS SO:1/ P. TRANS"
- Missing
- N/A
- Finish
- Unknown
- Decoration
- N/A
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
Canadian General Electric Co. Ltd., Ammeter, circa 1915–1921, Artifact no. 1967.0123, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1967.0123.001/
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