A - Human Necessities – 62 – C
Patent
A - Human Necessities
62
C
26/111, 137/4.3
A62C 37/12 (2006.01) H01H 69/02 (2006.01)
Patent
CA 1037342
ABSTRACT OF THE DISCLOSURE A pair of substantially flat rectangular fusible links is constructed from progressive dies by partially cutting them from sheet metal stock as blanks, flanging edges on the parts and including the forming of triangular camming surfaces on such flanges, and then shearing the parts from the stock. Thereafter, the links are fluxed and soldered together and are held in internested complementary relation. It is characteristic of the links that there are no voids or discontinuities in the joined surfaces and into which flux will not flow; the interfacing tri- angular cam surfaces insure a clean breaking apart of the links once the eutectic temperature of the links biases them laterally apart under the camming action to insure a complete break-away of the con- fronting soldered surfaces.
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