Object Record
Images
Metadata
Catalog Number |
Learning Lab 9 |
Object Name |
Meter |
Lexicon category |
10: Unclassifiable Artifacts |
Description |
General Electric Company-Thomson High Torque Induction (AC Watt) Meter. Patented March 19,1889 May 27,1890 July 22, 1890 March 17, 1891 Dec. 3, 1895 Dec. 17, 1895 Oct. 17, 1899 March 13, 1900 Apr. 2, 1901 July 14, 1903. General Electric Company, U.S.A." Meter measures about 7 inches wide, 8 inches high and 6 inches deep. No. 1761243 Type: I Volts: 100-110 Cycles: 6 AMP: 10 Wattmeter measures how much electricty a circuit or building is comsuming. Allows electric companies to determine how much a household or commercial building is using in order to charge consumers properly. Type I (Single Phase) "The Type I was one of the first "modern" meters as it had all the basic features and adjustments found in today's meters. This model proved to be as popular with the utilities as the Thomson Recording Wattmeter had been just a few years earlier. In fact, this model proved to be dependable enough that many Type I meters were used into the 1960s. This is also the last model without a separate chamber for wire connections, the wires entering through holes in the sides of the base (requiring removal of the main cover for access to the terminals). The Type I comes in three different sizes depending on the meter's capacity. The vast majority of this model have metal covers, but a few have been made with glass covers (which have the nameplate attached to the cover instead of sitting behind the glass!). Most of the metal covers are stamped, but some of the very earliest Type I's have cast covers." Type I-8 (Single Phase) (1906 to 1913) "In 1906, the basic Type I was redesigned by moving the terminals to a separately sealed chamber at the bottom of the meter to allow access to the terminals without having to take off the meter's cover. In all other respects, the I-8 was identical to the Type I, including the low capacity / high capacity sizes. This model also had an unique feature: the jewel screw was accessible from the outside of the meter once the terminal cover was taken off." (TESCO-The Eastern Specialty Company-Watthour Meters) |
Imagefile |
025\Learning Lab 9.JPG |