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Radium dials are watch, clock and other instrument dials painted with luminous paint containing radium-226 to produce radioluminescence. Radium dials were produced throughout most of the 20th century before being replaced by safer tritium -based luminous material in the 1970s and finally by non-toxic, non-radioactive strontium aluminate ...
The Radium Dial Company was one of a few now defunct United States companies, along with the United States Radium Corporation, involved in the painting of clocks, watches and other instrument dials using radioluminescent paint containing radium. The resulting dials are now collectively known as radium dials.
The Waltham Watch Company, also known as the American Waltham Watch Co. and the American Watch Co., was a company that produced about 40 million watches, clocks, speedometers, compasses, time delay fuses, and other precision instruments in the United States of America between 1850 and 1957.
Lenzkirch Clock Co (Aktiengessellschaft fur Ukrenfabrikation) (1851-1929) factory operated by Junghans 1929-1932; Mauthe Clock Company (c1870 - 1976) Jakob Schlenker Grusen, Schwenningen (JSGUS/ISGUS) (1888–present) Johannes Schlenker, Schwenningen (1822-1883) then Schlenker and Kienzle (1883-1897) then Kienzle
The Seth Thomas Clock Company was founded by Seth Thomas in Plymouth Hollow, Connecticut, and began producing clocks in 1813. [1] It was incorporated as the "Seth Thomas Clock Company" in 1853. [ citation needed ] Plymouth Hollow, a part of the town of Plymouth, was incorporated in 1875 as the town of Thomaston , named for Seth Thomas.
Waterbury Clock sold the London-based arm of the Ingersoll watch business, Ingersoll, Ltd., to its board of directors in 1930, making it a wholly British-owned enterprise. [7] In 1944 the Waterbury Clock Company was renamed United States Time Corporation (now Timex Group USA ) and continued producing Ingersoll watches in the United States ...
A 1950s radium clock, exposed to ultraviolet light to increase luminescence. Radioluminescent paint was invented in 1908 by Sabin Arnold von Sochocky [3] [failed verification – see discussion] and originally incorporated radium-226. Radium paint was widely used for 40 years on the faces of watches, compasses, and aircraft instruments, so they ...
The Gilbert Clock Factory is a historic factory complex at 13 Wallens Street in Winsted, Connecticut. Developed between 1871 and 1897, its surviving elements are a preservation of the state's history as a center for the manufacture of low-cost clocks. The company was one of the town's largest employers for many years.
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