Howell portable voltmeter
date: label: date made
content: ca 1891
name: label: maker
content: Edison United Manufacturing Company
notes: label: Description (Brief)
content: Portable voltmeter that includes a leather case and a cable. Meter has a sliding cover engraved "Howell voltmeter, Edison Lamp Co., E. Newark, N. J. No.52". Case is brown leather with a strap handle and "D" rings at each end. There are also two straps for securing the hinged cover. Imprinted: "Edison United Manufacturing Co. 65 Fifth Ave. New York". A 2-wire power cable is broken in two. One end is attached to a medium-screw base socket adapter, the other has a special two conductor instrument connector. Conductors are stranded and about #18 gauge, about 6-8 ft. long total. See US Patent 435896, "Electrical Indicator," issued 2 September 1890 to John W. Howell.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from W. S. Andrews
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.306680
label: catalog number
content: 306680
label: accession number
content: 63413
objectType: label: Object Name
content: Wire, Accessory
label: Object Name
content: voltmeter
label: Other Terms
content: Wire, Accessory; Cables and Wires
physicalDescription: label: Measurements
content: meter: 3 3/4 in x 6 5/8 in x 1 1/4 in; 9.525 cm x 16.8275 cm x 3.175 cm
label: Measurements
content: case: 6 in x 7 in x 1 11/16 in; 15.24 cm x 17.78 cm x 4.318 cm