Metal encased refractory brick
First Claim
1. A refractory brick unit resistant to heat induced expansion spalling comprising:
- a heat resistant brick body having at least one sidewall which is adapted to be disposed adjacent the side of another proximal brick in refractory construction; and
a metallic member having at least a section thereof overlying said one sidewall of the brick body in at least partial covering relationship thereto and spaced from the face of said one sidewall,there being a plurality of elongated indented surfaces in said one sidewall of the brick body defining each of a plurality of spaced depressions therein,said brick body being provided with a pair of surfaces defining each of the depressions in said one sidewall thereof with one of said surfaces being in substantially perpendicular relationship to said one sidewall of the brick body while the other depression defining surface is inclined with respect to said one surface and said one sidewall of the brick body,said section of the metallic member being provided with extension means thereon projecting into each of the depressions, each of said extension means comprising an elongated tab integral with said section of the metallic member and having a free end which engages a corresponding inclined depression defining surface of the brick body in normally spaced relationship from said one surface proximal thereto, said extension means at least partially supporting said section of the metallic member in said spaced relationship from said one sidewall of the brick body whereby when the brick unit is laid side-by-side with another brick with the metallic section in abutting relationship to said other proximal brick, the space between the section of the metallic member and said one sidewall of the brick body accommodates expansion of the brick body during heating thereof without spalling attributable to pressure engagement with said other brick.
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Accused Products
Abstract
A refractory brick unit is disclosed which is resistant to heat induced expansion spalling by virtue of the provision of a metallic sleeve member around four sides of the brick body with the metallic envelope being constructed in a manner such that two adjacent side sections thereof are spaced from proximal side walls of the brick and supported in such disposition by elongated tabs integral with the sleeve member side sections and slidably received in complemental elongated depressions therefor in the opposed sidewall of the brick body. When the brick units are laid in side-by-side relationship with one side of a corresponding metallic side section abutting the side section of a proximal brick unit, the sleeve members as well as the brick units are able to undergo heat induced expansion without placing compression loads on the bricks which could cause spalling of the brick bodies.
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Citations
12 Claims
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1. A refractory brick unit resistant to heat induced expansion spalling comprising:
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a heat resistant brick body having at least one sidewall which is adapted to be disposed adjacent the side of another proximal brick in refractory construction; and a metallic member having at least a section thereof overlying said one sidewall of the brick body in at least partial covering relationship thereto and spaced from the face of said one sidewall, there being a plurality of elongated indented surfaces in said one sidewall of the brick body defining each of a plurality of spaced depressions therein, said brick body being provided with a pair of surfaces defining each of the depressions in said one sidewall thereof with one of said surfaces being in substantially perpendicular relationship to said one sidewall of the brick body while the other depression defining surface is inclined with respect to said one surface and said one sidewall of the brick body, said section of the metallic member being provided with extension means thereon projecting into each of the depressions, each of said extension means comprising an elongated tab integral with said section of the metallic member and having a free end which engages a corresponding inclined depression defining surface of the brick body in normally spaced relationship from said one surface proximal thereto, said extension means at least partially supporting said section of the metallic member in said spaced relationship from said one sidewall of the brick body whereby when the brick unit is laid side-by-side with another brick with the metallic section in abutting relationship to said other proximal brick, the space between the section of the metallic member and said one sidewall of the brick body accommodates expansion of the brick body during heating thereof without spalling attributable to pressure engagement with said other brick. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification