Relay
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1978.0379.001
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- OBJECT TYPE
- POLAR/HIGH SPEED/100+100 OHMS
- DATE
- 1920
- ARTIFACT NUMBER
- 1978.0379.001
- MANUFACTURER
- A.T.M. Co. Ltd.
- MODEL
- R336
- LOCATION
- Liverpool, England
More Information
General Information
- Serial #
- 678
- Part Number
- 1
- Total Parts
- 1
- AKA
- N/A
- Patents
- N/A
- General Description
- WOOD BASE/ BRASS CASING, INTERNAL MECHANISM, BINDING POSTS & ADJUSTMENT KNOB/ STEEL CONTACTS/ GLASS/ BAKELITE/ WIRE.
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- 13.5 cm
- Width
- 13.0 cm
- Height
- 13.2 cm
- Thickness
- N/A
- Weight
- N/A
- Diameter
- N/A
- Volume
- N/A
Lexicon
- Group
- Communications
- Category
- Telegraphy
- Sub-Category
- N/A
Manufacturer
- AKA
- Automatic Telephone
- Country
- England
- State/Province
- Unknown
- City
- Liverpool
Context
- Country
- Canada
- State/Province
- Unknown
- Period
- Unknown
- Canada
-
Unknown - Function
-
A DEVICE WHICH OPENS OR CLOSES AN AUXILIARY CIRCUIT UNDER PREDETER- MINED ELECTRICAL CONDITIONS IN THE MAIN CIRCUIT. IT ENABLES A WEAK CURRENT TO BE STRONGER. - Technical
-
IMPROVED THE QUALITY & CAPACITY OF LONG DISTANCE TELEGRAPH COMMUNICATION. - Area Notes
-
Unknown
Details
- Markings
- ON BRASS CASING: 'THE/ ATM' ENCLOSED IN A CIRCLE/ 'HIGH-SPEED/ RELAY/PAT. NO. 156353/ 678'/ 'MARKING SPACING' WITH DIRECTION ARROWS OVER SIDE ADJUSTMENT KNOB. MARKINGS ARE INCISED/ '100+100/ R336' STAMPED INTO BOTTOM.
- Missing
- From CA of 08/09/1996 by Kevin Machan: Undetermined
- Finish
- VARNISHED WOOD BASE/ METAL ADJUSTMENT SCREWS PAINTED BLACK.
- Decoration
- BEVELLED GLASS EDGE.
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
A.T.M. Co. Ltd., Relay, circa 1920, Artifact no. 1978.0379, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1978.0379.001/
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