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The Dorothy Mae building, located at 821 Sunset Boulevard, was constructed primarily of bricks and had been opened to tenants in 1927. [6] [7] The 43-unit building housed nearly 200 people. [4] The Dorothy Mae Apartment-Hotel fire was the impetus for the 1984 passage of a fire sprinkler law known as the Dorothy Mae ordinance. [2]
A fire sprinkler system is an active fire protection method, consisting of a water supply system providing adequate pressure and flowrate to a water distribution piping system, to which fire sprinklers are connected. Although initially used only in factories and large commercial buildings, systems for homes and small buildings are now available ...
Sprinkler system may refer to: Irrigation sprinkler, a device for irrigation of lawns or crops; Fire sprinkler system, the entire systems of pipes and sprinklers ...
Dorothy Mae Richardson (May 3, 1922 – April 28, 1991) was an African American community activist who is credited with introducing a new model of community development in the late 1960s when she led a resident campaign for better housing in her neighborhood on the Central North Side of Pittsburgh, Pennsylvania.
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Dorothy Mae is a given name. People with this given name include: Dorothy Mae Kilgallen, American writer and game show contestant (1913–1965) Dorothy Mae Richardson, American community activist (1922–1991) Dorothy Mae Stang, American nun murdered in Brazil (1931–2005) Dorothy Mae Taylor, American politician (1928–2000)
He continued to improve the device and in 1890 invented the glass disc sprinkler, essentially the same as that in use today. Such sprinklers are called le Grinnell in France. [2] He secured some 40 distinct patents for improvements on his sprinklers, and invented a dry pipe valve and the automatic fire-alarm system as well.
A sprinkler system timer is an electrical device that is used to set an irrigation sprinkler system to come on automatically at a certain time. Irrigation timers first appeared in the early 1960s to control large-radius lawn sprinklers, which at the time usually contained their own electrically operated valve (most golf-course sprinklers still use this type of actuation).
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