Cutters – for shaping – Including holder having seat for inserted tool – Plural simultaneously usable separable tools in common seat...
Patent
1976-07-08
1977-12-20
Hinson, Harrison L.
Cutters, for shaping
Including holder having seat for inserted tool
Plural simultaneously usable separable tools in common seat...
407102, 407107, 407113, 407117, 408239R, B26D 100, B26D 112
Patent
active
040638413
ABSTRACT:
An indexable insert for cutting internal and external grooves in a workpiece is adapted for mounting and securing upon a tool holder having a pocket therein; whose bottom edges define an obtuse angle. The insert comprises an elongated body of rectangular cross section having a flat top surface along one edge of the body and a pair of angular bottom surfaces extending from a central point of the body and inclined toward and extending to said top surface at a corresponding included obtuse angle. These inclined surfaces define a pair of separately usable transverse cutting edges at the opposite ends of said body which is adapted for snug registry within said pocket. Said pocket also defines within the tool holder a back up plate against which the insert bears. The insert, one or more, is held down within said pocket by a clamp which bears across the top edges of said inserts. A cam lock device is also mounted upon said holder to apply lateral pressure to the insert holding it snugly against the back up wall. The preferred angle involved is 140 degrees approximately or in the range of 130.degree. to 150.degree..
REFERENCES:
patent: RE25955 (1966-02-01), Emmons
patent: 2289464 (1942-07-01), Simmons
patent: 3205558 (1965-09-01), Stier
patent: 3245288 (1966-04-01), Fried
patent: 3653107 (1972-04-01), Hertel
patent: 3805350 (1974-04-01), Stein
patent: 3813746 (1974-06-01), Price
Hinson Harrison L.
Posa-Cut Corporation
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