Method for repairing iron molds

Details Method for repairing iron molds Method for repairing iron molds

1975-12-05

1977-07-12

Lanham, C.W.

Metal working

Method of mechanical manufacture

Converting

29522, B23P 700

Patent

active

040344622

ABSTRACT:
This invention relates to an improvement in the method for repairing a damaged iron mold and similar casting devices by bridging the damaged area with a metal plate and securing the plate by means of fastening elements inserted into apertures in the plate and prepared recesses in the iron mold, the improvement comprising inserting expansible straddling dowels in said apertures and recesses, and expanding said dowels with a powder-force-actuated setting device.

REFERENCES:
patent: 2492579 (1949-12-01), Kahn
patent: 3480306 (1969-11-01), Hsu
patent: 3487745 (1970-01-01), Brunelle
patent: 3629928 (1971-12-01), Hammerle
patent: 3758939 (1973-09-01), Galvani
patent: 3768412 (1973-10-01), Dardick
patent: 3802059 (1974-04-01), Fischer

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