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Bromochlorodifluoromethane (BCF), also referred to by the code numbers Halon 1211 and Freon 12B1, is a haloalkane with the chemical formula C F 2 Cl Br. It is used for fire suppression, especially for expensive equipment or items that could be damaged by the residue from other types of extinguishers. [ 1 ]
The stained glass windows of Chartres Cathedral are held to be one of the best-preserved and most complete set of medieval stained glass, notably celebrated for their colours, especially their cobalt blue. They cover 2600 square metres in total and consist of 172 bays illustrating biblical scenes, the lives of the saints and scenes from the ...
One of the most prestigious stained glass commissions of the 19th century, the re-glazing of the 13th-century east window of Lincoln Cathedral, Ward and Nixon, 1855. A revival of the art and craft of stained-glass window manufacture took place in early 19th-century Britain, beginning with an armorial window created by Thomas Willement in 1811–12. [1]
The primary aim of conservation is to slow the rate of deterioration, caused by various factors, to the point where the loss of significance, such as historic information and/or aesthetic value can be kept to a minimum (Pye 2001, Ch. 5). However, in the case of stained glass, these efforts are complicated by the nature of the medium itself.
Early life. Born in 1841, the son of a Scottish farmer, in the Gorbals district of Glasgow, MacDonald was trained as a glass painter in London.By 1863, he was a partner in the London firm of McMillan & McDonald of Camden Town, furnishing stained glass for the New Stepney Meetinghouse (destroyed) in the Tower Hamlets district of East London.
Harry Clarke (1889–1931) was an Irish stained-glass artist and book illustrator. He produced more than 130 stained glass windows, he and his brother Walter having taken over his father's studio after his death in 1921. [1] His glass is distinguished by the finesse of its drawing and his use of rich colours, and an innovative integration of ...
Wailes was born and grew up in Newcastle on Tyne, England's centre of domestic glass and bottle manufacturing. His first business was as a grocer and tea merchant. [ 1] However, his artistic talent and practical skills led him to set up a small kiln in the backyard of his premises. He made and fired small decorative enamels which were sold in ...