General Information

Serial #

5121

Part Number

1

Total Parts

1

AKA

N/A

Patents

N/A

General Description

Metal (steel and brass?)/ Glass/ Paper/ Synthetic?

Dimensions

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

Length

24.0 cm

Width

19.0 cm

Height

14.5 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

Weston

Country

United States of America

State/Province

New Jersey

City

Newark

Context

Country

Canada

State/Province

Quebec

Period

Unknown

Canada

Example of early 20th century DC switchboard meter used in Quebec.

Function

To measure DC current in amperes.

Technical

Permanent magnet moveable coil type DC fan-shaped switchboard ammeter. Duplicate, except for the scale, of 1969.0160. Fan-shaped for longer scale. Weston claims that its fan-shaped meters have the longest scales in the world relative to their size. For standard switchboards. 0 to 50 scale. This switchboard meter could have been mounted on a panel for battery charging and use. It would be connected to rheostats along with a voltmeter and help to charge batteries without overloading them.

Area Notes

Unknown

Details

Markings

Remnants of damaged label glued to the back of the ammeter reads: "NOTICE/ This instrument is SEALED./ If the instrument fails, we recomm?/ that it be sent to the maker for repair?/ ?out breaking the seals./ Claims for damages ca?/ by this Company if th?/ Weston El?" Mfr. plate reads: "WESTON/ MODEL 273 NO. 5121/ WESTON ELECTRICAL INSTRUMENT CO./ NEWARK, N.J., U.S.A." Patent info on scale reads: "PATENTED JULY 10, 1894 NOV. 20, 1894 JAN. 29, 1895 OCT. 4, 1898 JULY 16, 1901 OTHER PATENTS PENDING" Info. on scale reads: "D.C. AMPERES/ MODEL 273 NO 5121"

Missing

N/A

Finish

Unknown

Decoration

N/A