Woodworking – Veneer lathe – Knife or knife block
Reexamination Certificate
1999-10-27
2001-10-09
Bray, W. Donald (Department: 3725)
Woodworking
Veneer lathe
Knife or knife block
C144S209100, C144S211000
Reexamination Certificate
active
06298888
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a new kind of veneer and a method for manufacturing the same. This veneer originally has the straight grain but assumes the cross grain which resembles especially the one technically termed “Chijimi” grain. The present invention relates also to a method of forming the cross grain artificially on the surface of straight-grained veneer.
2. Description of the Prior Art
Veneer is conventionally produced by cutting wood thin (0.2 to 0.5 mm) by using veneer peeling machines, such as slicer and rotary lathe. These machines are provided with a knife to cut wood, which is of such a type that the cutting edge runs straight in the lengthwise direction of the knife. The veneer cut from wood is backed with paper or nonwoven fabric and the resulting sheet is used as the surface decorative material for the interior of building, furniture, and vehicles.
Some kinds of wood have a kind of cross grain which is seen on the section of straight grain. (This cross grain is termed “Chijimi” grain in the woodworking industry.) For example, Aesculus turbinata BLUME (Japanese horse chestnut) has a kind of interlocked grain called “Tochitorachijimi” grain, and Swietenia mahagoni JACQ or Swietenia macrophylla KING has a kind of wavy grain called “Gozachijimi” grain. A variety of cross grain is also found in Fraxinus longicuspis of F. mandshurica, Acer saccharun MARSH., Larix leptolepis, Khaya sp. (Acajou), and the like. Since the cross grain mentioned above is found only at a specific part of a specific species of wood, any wood having the designwise fine cross grain is highly regarded because of its scarcity value. However, some kinds of wood which have the cross grain (especially wavy grain and interlocked grain) of good appearance and artistic value are becoming less available than before owing to the recent exhaustion of wood resources. Therefore, cross-grained veneer is highly prized in the market.
SUMMARY OF THE INVENTION
With the foregoing background in mind, the present invention was completed to provide a new kind of veneer which has the cross grain artificially formed on the surface of the straight grain. This veneer is produced from a species of wood which should yield the cross grain but actually has no cross grain. Accordingly, it is an object of the present invention to provide a new kind of veneer having the cross grain and a method for producing the same. It is another object of the present invention to provide a knife for the veneer peeling machine which is indispensable for the production of said veneer having the cross grain. These and other objects of the present invention will become clear from the detailed description and claims which follow and the accompanying drawings.
REFERENCES:
patent: 63128 (1867-03-01), Wilson
patent: 249379 (1881-11-01), Mark et al.
patent: 389624 (1888-09-01), Wilson
patent: 507713 (1893-10-01), Mark
patent: 1772726 (1930-08-01), Mengel
patent: 1828873 (1931-10-01), Miller
patent: 4142931 (1979-03-01), Viol et al.
patent: 4388133 (1983-06-01), Hirao
patent: 4465539 (1984-08-01), Saihara
patent: 4541756 (1985-09-01), Kubota
patent: 4731145 (1988-03-01), Senzani
patent: 4890656 (1990-01-01), Ohsumi
patent: 5413814 (1995-05-01), Rowen
patent: 351159 (1922-04-01), None
patent: 544050 (1922-06-01), None
patent: 50-141798 (1975-11-01), None
patent: 6-15612 (1994-01-01), None
Holz Lexicon, 3rdEd., Rudolf Mombacher, ed., pp. 400-402.
Bull, S.J., “Fantastic Finishes,”Decorating and Craft Ideas, Apr. 1982, pp. 44-47.
R. Bruce Hoadley,Understanding Wood, pp. 19-20 (1980).
Bray W. Donald
Hokusan Ltd.
Oliff & Berridg,e PLC
LandOfFree
Cross-grained veneer and manufacturing method of the same does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Cross-grained veneer and manufacturing method of the same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cross-grained veneer and manufacturing method of the same will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2598584