SE9000974D0 - CONSTRUCTION THAT BREAKS CROWDING OF TRAE - Google Patents

CONSTRUCTION THAT BREAKS CROWDING OF TRAE

Info

Publication number
SE9000974D0
SE9000974D0 SE9000974A SE9000974A SE9000974D0 SE 9000974 D0 SE9000974 D0 SE 9000974D0 SE 9000974 A SE9000974 A SE 9000974A SE 9000974 A SE9000974 A SE 9000974A SE 9000974 D0 SE9000974 D0 SE 9000974D0
Authority
SE
Sweden
Prior art keywords
timber
grain
inserts
right angles
sapwood
Prior art date
Application number
SE9000974A
Other languages
Swedish (sv)
Other versions
SE9000974L (en
SE469975B (en
Inventor
V Koivusalo
Original Assignee
Paloheimo Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Paloheimo Oy filed Critical Paloheimo Oy
Publication of SE9000974D0 publication Critical patent/SE9000974D0/en
Publication of SE9000974L publication Critical patent/SE9000974L/en
Publication of SE469975B publication Critical patent/SE469975B/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G1/00—Machines or devices for removing knots or other irregularities or for filling-up holes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M1/00—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching
    • B27M1/08—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching by multi-step processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
    • B27M3/04—Manufacture or reconditioning of specific semi-finished or finished articles of flooring elements, e.g. parqueting blocks

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)

Abstract

The structure prevents warping of sawn timber at right angles to the grain when drying, with one face (2) formed by the heartwood and the opposite one (3) by the sapwood. One or more inserts (10) are set in the timber at the sapwood side, with their thickness (M) and width being appreciably less than those (H, D) of the timber itself. They extend for the full length of the timber in the direction of the grain. In the transverse direction of the timber and at right angles to its grain the alteration in dimensions of the inserts, due to variation in the moisture content, is considerably less than that taking place in the timber for the same reason. ADVANTAGE - Warping prevention, less waste during planning, and plank stiffening.
SE9000974A 1990-03-16 1990-03-19 Design and procedure to prevent curvature of wood SE469975B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19904008431 DE4008431A1 (en) 1990-03-16 1990-03-16 Drying timber warping preventing structure - uses inserts less affected by moisture alteration than main portion in sap wood side

Publications (3)

Publication Number Publication Date
SE9000974D0 true SE9000974D0 (en) 1990-03-19
SE9000974L SE9000974L (en) 1991-09-20
SE469975B SE469975B (en) 1993-10-18

Family

ID=6402356

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9000974A SE469975B (en) 1990-03-16 1990-03-19 Design and procedure to prevent curvature of wood

Country Status (2)

Country Link
DE (1) DE4008431A1 (en)
SE (1) SE469975B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29821688U1 (en) * 1998-12-05 2000-04-06 Gustav Wilms Fa Wooden articles with a flat plate part
CN102229170A (en) * 2011-06-23 2011-11-02 中南林业科技大学 Method for manufacturing high-quality poplar composite material

Also Published As

Publication number Publication date
SE9000974L (en) 1991-09-20
SE469975B (en) 1993-10-18
DE4008431A1 (en) 1991-09-19

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