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US 4,379,417 AGranted
Method of cutting a workpiece
AssigneeRolf Peddinghaus
InventorsPaul Pieper, Walter Cordier
Life of this patent
Estimating the term…
Abstract
A cutting tool arrangement for performing the process of opening up the slit cut in the workpiece by circular saws before the saw is retracted to facilitate removal of the saw. The workpiece being severed is moved perpendicular to the cutting plane as is the saw blade to accomplish the desired result.
Claims8
An improved method of cutting a workpiece comprising the following steps:
- (a) positioning a workpiece for cutting such that a saw, including drive means, supported by an arm is movable with the arm transversely of the workpiece,
- (b) cutting the workpiece into two portions by moving the saw relatively transversely thereof,
- (c) effecting movement of one of the portions away from the other portion,
- (d) displacing the arm laterally of said relative transverse movement to move said saw away from the other portion of the workpiece, and
- (e) retracting said saw relative to the workpiece by moving said arm.
2 more elements
A method of cutting a workpiece comprising the following steps:
- (a) positioning a workpiece for cutting such that a saw, including drive means, supported by an arm is pivotally movable with the arm about a pivot axis in an arc defining a plane extending generally transversely of the workpiece;
- (b) placing said workpiece in tension;
- (c) cutting the tensioned workpiece into two portions by pivoting said arm and said saw relative to the workpiece;
- (d) effecting movement of one of the workpiece portions away from the other workpiece portion;
- (e) displacing said arm and said saw axially of said pivot axis away from the other workpiece portion, and
- (f) retracting said saw relative to the other workpiece portion by pivoting said arm.
3 more elements
Dependencies are inferred from the claim text.