Measuring & Mapping
Where, how far, and how much? People have invented an astonishing array of devices to answer seemingly simple questions like these. Measuring and mapping objects in the Museum's collections include the instruments of the famous—Thomas Jefferson's thermometer and a pocket compass used by Meriwether Lewis and William Clark on their expedition across the American West. A timing device was part of the pioneering motion studies of Eadweard Muybridge in the late 1800s. Time measurement is represented in clocks from simple sundials to precise chronometers for mapping, surveying, and finding longitude. Everyday objects tell part of the story, too, from tape measures and electrical meters to more than 300 scales to measure food and drink. Maps of many kinds fill out the collections, from railroad surveys to star charts.
"Measuring & Mapping - Overview" showing 1 items.
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- This oscillating piston water meter with split case and no serial number fit a ¾” pipe. It was made by the Well Machinery & Supply Company in Fort Worth, Texas. It has a cast-iron body and so was probably made during the materials restrictions of World War II.The city of Fort Worth agreed, in 1930, to purchase 8,000 oscillating piston meters from the California Meter Company of Los Angeles. The Well Machinery & Supply Company acquired California Meter soon thereafter, and advertised Calmet water meters as “A Texas Made Product.”
- Ref: “Water Meter Concern Cites Accepted Bid,” Los Angeles Times (Aug. 30, 1930), p. E1.
- Well Machinery & Supply Company, Calmet. The Precision Built Water Meter (Fort Worth, n.d.).
- date made
- early 1940s
- Well Machinery & Supply Company
- ID Number
- accession number
- catalog number
- Data Source
- National Museum of American History, Kenneth E. Behring Center