Mining or in situ disintegration of hard material – Cutter tooth or tooth head – Rolling or rotatable-type bit mount
Patent
1996-12-17
1998-02-24
Bagnell, David J.
Mining or in situ disintegration of hard material
Cutter tooth or tooth head
Rolling or rotatable-type bit mount
E21C 35197
Patent
active
057205280
ABSTRACT:
A rotatable cutting tool-holder assembly which has a cutting tool having a forward and a rearward end. The cutting tool contains a groove adjacent to the rearward end thereof. A holder contains a bore therein wherein the bore has a forward opening and a rearward opening. The holder has a rearward surface. The holder presents a rearwardly extending boss from the rearward surface thereof. The cutting tool is carried in the bore so that the groove of the cutting tool extends rearwardly past of the rearward opening of the bore. A retention clip is received within the groove of the cutting tool and the boss engages the retention clip so as to retain the cutting tool within the bore of the holder so that the cutting tool is free to rotate relative to the holder.
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Strathclyde Limited Brochure, "Side Pull-Lock Tools and Toolholders", Leaflet 70-110 (Date unknown).
Yatskikh et al., Mining Machines and Systems, Gomye Mashiny Kompleksy, 4th Ed., (1974) Moscow Nedra, selected pages. MT-76 (date unknown).
Bagnell David J.
Kennametal Inc.
Prizzi John J.
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