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Detail of a cornice moulded in staff, Manufactures and Liberal Arts Building at the Chicago World's Columbian Exposition, 1893. Staff is a kind of artificial stone used for covering and ornamenting temporary buildings. Facade of the Fisheries Building, World's Columbian Exposition. Three pillared archways are constructed and finished, in front ...
On heating to 180 °C (350 °F), the nearly water-free form, called γ-anhydrite (CaSO 4 ·nH 2 O where n = 0 to 0.05) is produced. γ-anhydrite reacts slowly with water to return to the dihydrate state, a property exploited in some commercial desiccants. On heating above 250 °C (480 °F), the completely anhydrous form called β-anhydrite or ...
In 1909, Avery led the USG acquisition of the Sackett Plaster Board Company, [13] inventor of Sackett Board, which was a panel made of multiple layers of plaster and paper. Patented by USG in 1912, a new manufacturing process produced boards with a single layer of plaster and paper that could be joined flush along a wall with a relatively ...
1818: December 3, Illinois joins the Union and becomes a state. 1820 Chicago 1821 Survey of Chicago. 1830 August 4, Chicago is surveyed and platted for the first time by James Thompson. Population: "Less than 100". [1] 1833 1833 Treaty of Chicago; Chicago incorporated as a town. [1] 1835
Depending on the setting time of the plaster. once the moisture of the plaster starts to be drawn by the board a second pass is made. this is called knocking down. it is much like applying paint with a roller in wrist action and purpose. to smooth out any lines and fill in any major voids that will make extra work once the plaster starts to ...
[17] On July 12, 1834, the Illinois from Sackets Harbor, New York, was the first commercial schooner to enter the harbor, a sign of the Great Lakes trade that would benefit both Chicago and New York state. [15]: 29 Chicago was granted a city charter by the State of Illinois on March 4, 1837; [18] it was part of the larger Cook County. By 1840 ...
The location of the fair was decided through several rounds of voting by the United States House of Representatives. The first ballot showed Chicago with a large lead over New York, St. Louis and Washington, D.C., but short of a majority. Chicago broke the 154-vote majority threshold on the eighth ballot, receiving 157 votes to New York's 107. [11]
Lath and plaster is a building process used to finish mainly interior dividing walls and ceilings. It consists of narrow strips of wood which are nailed horizontally across the wall studs or ceiling joists and then coated in plaster. The technique derives from an earlier, more primitive process called wattle and daub. [1]