Groove cutting machine

Details Groove cutting machine Groove cutting machine

1978-03-20

1979-05-01

Lawson, Patrick D.

Boot and shoe making

Sole machines

Grooving

834251, 83671, 83693, 83917, 69 2, A43D 6300, B06C 1104, B06D 112

Patent

active

041516222

ABSTRACT:
To eliminate the noisy milling machines for cutting grooves in articulation pieces of innersoles, a machine is provided which comprises a series of pairs of forwarding rollers, one of the rollers of the first few pairs of rollers has a double knife formed on at least a part of its circumference so that a piece passing between such a pair has two longitudinal cuts formed thereon which are to become the side walls of the groove; a transverse skinning knife is pivotally mounted so as to be moveable into and out of the path of this piece as it passes a subsequent pair of rollers, this knife has the width of the groove and is pivoted into the path of the piece to remove the material between the longitudinal cuts. Preferably, a bracket device is associated with the skinning knife to maintain the straight path of the piece as the skinning knife works on it.

REFERENCES:
patent: 1247519 (1917-11-01), Fern
patent: 1298859 (1919-03-01), Schoenky
patent: 1856433 (1932-05-01), Schillo
patent: 1861913 (1932-06-01), Gannon et al.
patent: 2230383 (1941-02-01), Monfils

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