E - Fixed Constructions – 21 – D
Patent
E - Fixed Constructions
21
D
85/2, 72/67, 61/
E21D 20/00 (2006.01) E21D 20/02 (2006.01) F16B 13/00 (2006.01)
Patent
CA 1046305
ABSTRACT OF THE DISCLOSURE The present invention provides a method of anchoring a securing element in a material, characterised in that one end of an elongated member is maintained in contact against the said material, and at the said end combustion is effected which is capable of producing a sufficient amount of heat to bring at least the portion of the said material in the vicinity of the said end to a temperature at least equal to the melting point of the said material so as to cause the said member to penetrate the material to the extent that the portion of the material adjacent to the said end of the said member melts, and by the fact that when the said member has penetrated the material to the desired depth the said combustion is stopped, while leaving the said member in the position corresponding to this depth, the fusion and/or combustion products ensuring the anchorage of the said member in the said material by solidification and the said member thus anchored constituting the said securing element. The present invention also provides a member for use in said method which comprises an essentially elongated body of which at least the end intended to be inserted in the material to be drilled has a combustible charge, means being provided to bring a combustion supporting substance into intimate contact with this charge to enable combustion to be effected at this end whereby a temperature at least equal to the melting point of the material to be drilled can be achieved, and the other end of the body has securing means co enable objects to be attached to the said material once the said member has been anchored in the said material. - 1 -
241310
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