Bit holder

Details Bit holder Bit holder

1976-10-18

1978-05-30

Hinson, Harrison L.

Metal tools and implements, making

Blank or process

299 91, B21K 2100, E21C 1300

Patent

active

040916928

ABSTRACT:
A bit holder consisting of steel, said bit holder comprising a bore for accommodating the bit shaft and being welded to the cutting head of a cutting machine, characterized in that the bit holder consists of a part of heat-resistant steel of high strength and of a foot consisting of an unalloyed or low alloy steel of good weldability and being welded to said foot over the whole contacting area. In making the holder a blank corresponding to the part accommodating the bit shaft is over the whole contacting area welded to a blank corresponding to the foot to provide a composite blank which is subsequently forged in a forging die.

REFERENCES:
patent: 3356418 (1967-12-01), Healey et al.
patent: 3533311 (1970-10-01), Allds et al.
patent: 3544166 (1970-12-01), Proctor
patent: 3614164 (1971-10-01), Davis
patent: 3913979 (1975-10-01), Strauss et al.
patent: 3958832 (1976-05-01), Sigott et al.

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