Voltmeter
Object number2018.45.1
Manufacturer
Westinghouse Electric and Manufacturing Company
(1886 - 1945)
Datec. 1950
OriginUnited States of America
OriginNewark, NJ
MediumMetal; Paint; Glass; Rubber; Leather; Electrical tape; Electrical wire; Fabric; Plastic; Paper; Ink
Credit LineGift of Daniel J. McDermott
DescriptionType-A recording voltmeter. Black metal framework forms rounded rectangular base, back, and top of unit. Mounted on front center of framework is circular black metal drum with colorless glass window on front revealing black-and-white chart for recording volts. Chart has black printed circular grid with printed black text at center and on chart; there is a chrome metal recording arm in the viewer's top right area. Top of framework has leather handle covered in black electrical tape. Above glass window is black metal maker plate. Mounted on reverse of framework is power unit with maker plate on back center. Four circular black rubber feet.DimensionsHeight x Width x Depth: 12.25 x 8.625 x 6.625 in. (31.1 x 21.9 x 16.8 cm)InscriptionsRecording chart inside glass window has black printed text around center "MADE IN U.S.A. / WESTINGHOUSE / LOT F5C / CHART / STYLE / 1095785 / CHART / STARTED / A.M. / P.M. / DATE / CIRCUIT / TYPE-A / RECORDING / VOLTMETER".
Recording chart inside glass window has black printed hours around the perimeter in one-hour increments; chart grid has printed numbers "90-140" in 10-number increments in four areas.
Rectangular calibration card inside window along bottom of drum has printed, stamped, and handwritten text including "CALIBRATION CARD / Serial No. 1356800 / Portable a.c. VOLTMETER / ... / OK ON ALL POINTS / Dep't SWGR. ENG. Date SEP 25 1953 / Calibrated by R. McClelland / Approved by [signature] / Form 3591-B".
MarksAbove glass window is black metal plate with text "21094 Westinghouse 4-1-36 / TYPE A RECORDING VOLTMETER / 1 DAY CHART / VOLTS 90/140 - 180/250 60 CYC CIRCUIT / STYLE 879991-A SER. 1356800 / WESTINGHOUSE ELECTRIC & MANUFACTURING COMPANY, MADE IN U.S.A."
Mounted on back center of power unit is metal plate with text "Westinghouse / 2305 / (4-28-28) / RESISTANCE / PATENTED 7-9-12 / 11-15-21 / FOR INSTRUMENT / SERIAL NO. 1356800 / ... / WESTINGHOUSE ELECTRIC & MFG. CO. / NEWARK WORKS, NEWARK, N. J., U. S. A."
Historical NotesWestinghouse portable voltmeter. Donor Daniel J. McDermott's father-in-law, Calivn H. Furfari, worked for Westinghouse as a Mining Industry Application Engineer from 1948 to 1986. The “Recording Voltmeter” measured voltage on a chart over a period of time. A volt is the size of the force that sends electrons through a current.
Previous owner
Calvin H. Furfari
Related person
R. McClelland
Terms
On View
Not on view
Magnasync/Moviola Corporation
Quickie Designs, Inc.
1968-2001
