Rock milling cutter tongue and slot connected

Details Rock milling cutter tongue and slot connected Rock milling cutter tongue and slot connected

1978-02-27

1979-12-25

Purser, Ernest R.

Mining or in situ disintegration of hard material

Miscellaneous

37142A, 408 66, E21C 3518

Patent

active

041802926

ABSTRACT:
A plurality of cutter tool holders are mounted to a milling cutter head by tongue and groove connections. Each connection comprises a groove formed in the cutter head and a tongue formed on the tool holder. The groove has an undercut portion and an enlargement at one end. The tongue includes a projection which can be inserted into the enlargement and then into the undercut to prevent, via wedging action, dislodgement of the tool holder. The groove and tongue each includes a side wall which is straight along its height.

REFERENCES:
patent: 3305274 (1967-02-01), Goodfellow et al.
patent: 3666321 (1972-05-01), Lundstrom
patent: 3820849 (1974-06-01), Lundstrom

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