GB412175A - Improvements in methods of drying and impregnating wood - Google Patents

Improvements in methods of drying and impregnating wood

Info

Publication number
GB412175A
GB412175A GB3561732A GB3561732A GB412175A GB 412175 A GB412175 A GB 412175A GB 3561732 A GB3561732 A GB 3561732A GB 3561732 A GB3561732 A GB 3561732A GB 412175 A GB412175 A GB 412175A
Authority
GB
United Kingdom
Prior art keywords
wood
steam
vapour
impregnating
ratio
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB3561732A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB3561732A priority Critical patent/GB412175A/en
Publication of GB412175A publication Critical patent/GB412175A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
    • B27K5/04—Combined bleaching or impregnating and drying of wood
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/02—Processes; Apparatus
    • B27K3/0271—Vapour phase impregnation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/02—Processes; Apparatus
    • B27K3/0278—Processes; Apparatus involving an additional treatment during or after impregnation

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Drying Of Solid Materials (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)

Abstract

412,175. Treating wood. WILL, H. E., 53A, Br³derstrasse, Remscheid, Germany. Dec. 15, 1932, No. 35617. [Class 140.] Wood is dried and impregnated by treatment with steam and the vapour of the impregnating agent in superheated condition and moving with a velocity of at least several metres per second. During a drying or impregnating operation, a constant ratio is maintained between the velocity of circulation and the degree of superheat, but these two factors are progressively reduced during the operation. To determine this ratio, thermometers are introduced at different distances from the surface of a specimen of the wood to be treated. For a given speed of circulation, the degree of superheat is varied until the curve showing the relation between temperature and distance from the surface is parabolic, whereupon the required ratio is determined. The operations may be conducted under reduced or elevated pressure. Steam or oil of turpentine vapour may be used as " catalytic " agent to facilitate impregnation, e.g. with a phenol-turpentine mixture. The operations may be conducted in container m, into which the timber is run on carriages b. A series of variable speed fans g circulate the steam, which is formed from the wood and rapidly displaces the air initially present. The impregnating agent is admitted through a perforated pipe i, and passes with the vapour current through heating apparatus h.
GB3561732A 1932-12-15 1932-12-15 Improvements in methods of drying and impregnating wood Expired GB412175A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3561732A GB412175A (en) 1932-12-15 1932-12-15 Improvements in methods of drying and impregnating wood

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3561732A GB412175A (en) 1932-12-15 1932-12-15 Improvements in methods of drying and impregnating wood

Publications (1)

Publication Number Publication Date
GB412175A true GB412175A (en) 1934-06-15

Family

ID=10379707

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3561732A Expired GB412175A (en) 1932-12-15 1932-12-15 Improvements in methods of drying and impregnating wood

Country Status (1)

Country Link
GB (1) GB412175A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0296851A1 (en) * 1987-06-23 1988-12-28 Her Majesty The Queen In Right Of New Zealand Acting By And Through The Minister Of Forestry For New Zealand Gaseous or vapour phase treatment of wood with boron preservatives
WO2006051155A1 (en) * 2004-11-10 2006-05-18 Tekmawood Oy Method and apparatus for the protection of timber

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0296851A1 (en) * 1987-06-23 1988-12-28 Her Majesty The Queen In Right Of New Zealand Acting By And Through The Minister Of Forestry For New Zealand Gaseous or vapour phase treatment of wood with boron preservatives
US5024861A (en) * 1987-06-23 1991-06-18 Her Majesty The Queen In Right Of New Zealand Acting By And Through The Minister Of Forestry For New Zealand Gaseous or vapor phase treatment of wood with boron preservatives
WO2006051155A1 (en) * 2004-11-10 2006-05-18 Tekmawood Oy Method and apparatus for the protection of timber

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