Turning – Lathe – Tool rest
Patent
1991-09-19
1992-12-01
Schwartz, Larry I.
Turning
Lathe
Tool rest
82161, 407 64, 407103, 407 78, 407 81, B23P 1530
Patent
active
051671760
ABSTRACT:
A tool for use with a tool holder has a body to which at least one blade such as a circular saw blade or milling cutter is clamped to prevent the blade from turning when a selected tooth is brought into cutting or grooving contact with a rotating work piece, the blade is of a type having its teeth so spaced and arranged that each tooth is spaced 90.degree. from another tooth. The body of the tool has first and second parallel clamping surfaces through which a straight slot opens. A first or front clamping member has a hub on which a blade is rotatably mounted and which fits the slot and is held thereby against turning. The two clamping members are connected by a threaded member by which the clamping members are drawn towards each other to clamp the blade against the first clamping surface. The slot is disposed and dimensioned so that, in use, it is normal to the axis of the work piece with one end above and the other end below that axis. A member threaded through the body extends into the upper end of the slot and is operable to move the hub lengthwise of the slot enabling the position of a selected tooth relative to the work piece to be precisely established. When more than one blade is mounted on the hub, the blades are held apart by a spacer. The front of the tool has a series of graduations having a central marker spaced from the periphery of the blade and 90.degree. from the no rake position of the tooth selected for cutting or grooving rotating work. The marker divides the graduations into two groups, one group reflecting a positive rake position and the other, a negative rake position.
REFERENCES:
patent: 349475 (1886-09-01), Barclay
patent: 2520205 (1950-08-01), Girardin
patent: 3163062 (1964-12-01), Schultz
patent: 3182534 (1965-05-01), Hoffmann
patent: 4326437 (1982-04-01), Fischer
patent: 5044838 (1991-09-01), Brookfield
Carroll Kevin J.
Schwartz Larry I.
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