B - Operations – Transporting – 44 – F
Patent
B - Operations, Transporting
44
F
41/12
B44F 9/02 (2006.01) B27M 1/06 (2006.01) B44C 1/02 (2006.01) F23D 23/00 (2006.01)
Patent
CA 1098310
ABSTRACT An apparatus to simulate a woodgrain finish on composite wooden sheet material. The apparatus comprises a plurality of burner heads coupled to a gas supply and each having a row of transversely disposed nozzles. The burner heads are mounted on transversely disposed rods longitudinally reciprocated in their mountings. Reciprocation of the rods is by a cam associated with each rod, the cams being of different profiles and/or timing relative to one another. With ignition of the nozzles corresponding carbonisation scorch lines are formed on the surface of the sheet as the sheet is passed through the apparatus. The reciprocal action of the burner support rods imparts a substantially wavy motion to the lines, a random wave pattern resulting from the varying profiles and timing of the cams. The scorching results in minimal charring and the surface is finish sanded to remove raised smut. -1-
318567
Bates Robert E.
George H. Riches And Associates
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