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Man with glasses. A woman with glasses. Glasses, also known as eyeglasses or spectacles, are vision eyewear with clear or tinted lenses mounted in a frame that holds them in front of a person's eyes, typically utilizing a bridge over the nose and hinged arms, known as temples or temple pieces, that rest over the ears for support.
This page provides a list of the oldest brands and companies operating only in the eyewear manufacturing business to date and in any country. "Eyewear", although a relatively modern terminology, refers to the category of all items and accessories worn over the eyes for fashion adornment, protection against the environment and medical issues, including glasses (also called eyeglasses or ...
In the 1790s, the O'Hara and Craig glass works was the first glass works in Pittsburgh, and this works was another early user of coal as a fuel for its furnaces. [67] By 1800, it is thought that roughly ten glass works were operating in the United States. [68] Challenges for American glass works revolved around labor, raw materials, and imports.
The first half of the 18th century saw British optician Edward Scarlett perfect temple eyeglasses which would rest on the nose and the ears. The innovations presented by Scarlett would not only spark some to look at aesthetic customization of eyewear for fashion within Europe but also lead Benjamin Franklin to invent bifocals in colonial America. [12]
Most of the original Anchor Hocking glass container plants then operating were "spun off” in 1983 to form the newly created Anchor Glass Container Corporation (AGGC), with headquarters in Tampa, Florida. A wide variety of glass containers for many types of foods, beverages, and other products was produced. AGCC filed for bankruptcy in 2011.
Archeological evidence indicates that window glass was made using the cylinder method. Various types of bottles were also made. The glass works appears to have operated through 1784. [117] Schuylkill glass works: In 1794 John Nicholson built a glass works on the west side of Philadelphia at the falls of the Schuylkill River. [30]
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Nine of those factories made flint glass (crystal). The remaining factories made products such as bottles and window glass. [62] [Note 4] The best known Pittsburgh glass company was Bakewell, Pears and Company. The company was known for its crystal, including cut and engraved glassware. It also made window glass, bottles, and lamps. [64]