Grooved sheet material

Details Grooved sheet material Grooved sheet material

1975-02-28

1977-10-18

Schran, Donald R.

Woodworking

Shaping machine

Grooving machine

144133R, 83 5, B27C 500

Patent

active

040541657

ABSTRACT:
The invention provides a method, and apparatus for carrying out the method, of preparing a sheet material having two sets of grooves disposed one across the other, one set of grooves being continuous and the other set of grooves being formed in an intermittent and alternated manner simulating ladder pattern or brickwork. The material may be a simple sheet, especially chipboard or hardboard, or a laminated sheet prepared with strip material secured on a base, especially strip wood on a veneer or paper base.

REFERENCES:
patent: 3036605 (1962-05-01), Joa
patent: 3259157 (1966-07-01), Runnion
patent: 3470924 (1969-10-01), Short
patent: 3616826 (1971-11-01), Murphey et al.
patent: 3672415 (1972-06-01), Holan

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