Static structures (e.g. – buildings) – Frangible section or means
Patent
1982-08-18
1984-06-12
Murtagh, John E.
Static structures (e.g., buildings)
Frangible section or means
52 89, 52573, E04B 100
Patent
active
044533527
ABSTRACT:
A refractory brick without a metal casing and having built-in expansion at the hot face is formed by having at least one side face divided into two sections, the section adjacent the cold face being of normal configuration, but the section adjacent the hot face being inclined at a greater angle to the opposed side face, whereby expansion allowance is provided at the hot face, the section adjacent the hot face also having at least one raised portion, preferably adjacent the hot face, the height of the raised portion being such that its surface lies substantially in the plane extended of the lower, cold face section. By this construction, a brick is provided with built-in expansion allowance at the hot face, substantial bearing surface at the cold face to prevent loosening of the refractory structure in use, and means to prevent inadvertent closing of the hot face thermal expansion allowance during placement of the brick in a kiln or furnace.
REFERENCES:
patent: 1191271 (1914-12-01), Bow
patent: 2186223 (1940-01-01), Willetts
patent: 2192642 (1940-03-01), Griffith
patent: 3139048 (1964-06-01), Hall
patent: 3324810 (1967-06-01), Neely
patent: 3346248 (1967-10-01), Martinet
patent: 3394511 (1968-07-01), McKenna
Allen Jim E.
Martinet Jacques R.
Ford Kathryn L.
Kaiser Aluminum & Chemical Corporation
McQuarrie Malcolm
Murtagh John E.
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