Galvanometer

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Ingenium, 1970.0070.001
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OBJECT TYPE: DIFFERENTIAL/MAGNETIC COIL/ASTATIC/MOVING IRON
DATE: 1900
ARTIFACT NUMBER: 1970.0070.001

MANUFACTURER: SILVERTOWN TELEGRAPH WORKS
MODEL: Unknown
LOCATION: London, England

More Information

General Information

Serial #: N/A
Part Number: 1
Total Parts: 2
AKA: N/A
Patents: N/A
General Description: WOOD CASING/ METAL FACE, POINTER & PIVOT SUPPORT/ BRASS TERMINAL, RING & FITTINGS

Dimensions

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

Length: 8.5 cm
Width: 7.0 cm
Height: 12.0 cm
Thickness: N/A
Weight: N/A
Diameter: N/A
Volume: N/A

Lexicon

Group: Communications
Category: Telegraphy
Sub-Category: N/A

Manufacturer

AKA: SILVERTOWN
Country: England
State/Province: Unknown
City: London

Context

Country: Unknown
State/Province: Unknown
Period: CIRCA 1900
Canada: Unknown
Function: AN INSTRUMENT FOR DETECTING OR MEASURING A SMALL ELECTRICAL CURRENT BYMOVEMENTS OF A POINTER
Technical: MOVING IRON GALVANOMETERS WERE 1ST DISCUSSED BY G.C. PAGE (1845) BUT DIDN'T TAKE OFF COMMERCIALLY 'TIL 1880S. IDEA IS SIMILAR IN PRINCIPLE TO MARCEL DEPREZ'S "FISHBONE GALVANOMETER". A PIECE OF SOFT IRON WAS PUTIN A SOLENOID COIL BETWEEN POLES OF A POWERFUL PERMANENT MAGNET. (SEE COMPLETE WS IN S.I. & 0:DRIVE S.I.)
Area Notes: Unknown

Details

Markings: ON FACE: GRADUATION SCALE:'90 TO 0' & '0 TO 90'/ MANUFACTURER: 'TELEGRAPH WORKS/ SILVERTOWN, LONDON./ 2 ADHESIVE INTERIOR LABELS:.1 'RESISTANCE 115 OHMS';.2 '118 OHMS'
Missing: N/A
Finish: VARNISHED WOOD CASING
Decoration: MORTICE & TENON JOINERY

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SILVERTOWN TELEGRAPH WORKS, Galvanometer, circa 1900, Artifact no. 1970.0070, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1970.0070.001/

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