10 amp shunt
Datecirca 1912
Inventory Number0533c
ClassificationShunt
Subject
Maker
Weston Electrical Instrument Corporation
founded 1888
User
Department of Physics, Harvard University
founded 1884
User
Harvard Engineering School
1918 - 1951
Cultural Region
Place of Origin
Dimensionsshunt: 4.8 × 15.5 × 3.2 cm (1 7/8 × 6 1/8 × 1 1/4 in.)
blue board box: 5.7 × 29.2 × 21 cm (2 1/4 × 11 1/2 × 8 1/4 in.)
blue board box: 5.7 × 29.2 × 21 cm (2 1/4 × 11 1/2 × 8 1/4 in.)
Material
Description10 AMP shunt #64146 6" long single strip of resistance material secured between 2 cast brass blocks, large nuts and small screws for line and meter. On wood block.
Signedunsigned
Inscribedon metal strip: PAT MAY 16 1893 No. 497482;
on left block: 64146
on right block: 20 AMP;
painted in white on wood: 33B;
FunctionAccording to card, the shut is pivoted with bolts rather than wing bolts for current conductors, which would indicate it was used with a switchboard meter.
ProvenanceFrom the Jefferson Physical Laboratory, Harvard University. Was used for teaching Physics 3 class; and from Pierce Hall, Engineering School, Harvard University.
Weston Electrical Instrument Corporation
Date: circa 1912
Accessories: two cast metal connectors
Object number: 0533d
Jefferson Physical Laboratory, Harvard University
Date: ca. 1950-1980
Object number: 1997-1-0406
Weston Electrical Instrument Corporation
Date: late 19th-early 20th Century
Object number: 1997-1-1075
Weston Electrical Instrument Corporation
Date: circa 1910
Object number: 1997-1-0331
Jefferson Physical Laboratory, Harvard University
Date: ca. 1950-1980
Object number: 1997-1-0407
Weston Electrical Instrument Corporation
Date: late 19th Century
Accessories: goes with #0270a
Object number: 0270b
Jefferson Physical Laboratory, Harvard University
Date: ca. 1950-1980
Object number: 1997-1-0405
Weston Electrical Instrument Corporation
Date: dated 1888
Object number: 0417b
Weston Electrical Instrument Corporation
Date: circa 1925
Accessories: is an accessory of standard voltmeter (0531a)
Object number: 0531b
See also/See also
