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Metal encased refractory brick

  • US 4,170,856 A
  • Filed: 03/20/1978
  • Issued: 10/16/1979
  • Est. Priority Date: 03/20/1978
  • Status: Expired due to Term
First Claim
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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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