US132584A - Improvement in processes of preserving wood - Google Patents
Improvement in processes of preserving wood Download PDFInfo
- Publication number
- US132584A US132584A US132584DA US132584A US 132584 A US132584 A US 132584A US 132584D A US132584D A US 132584DA US 132584 A US132584 A US 132584A
- Authority
- US
- United States
- Prior art keywords
- wood
- improvement
- processes
- preserving wood
- pores
- 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 - Lifetime
Links
- 239000002023 wood Substances 0.000 title description 22
- 238000000034 method Methods 0.000 title description 14
- 239000007788 liquid Substances 0.000 description 12
- 239000011148 porous material Substances 0.000 description 12
- 238000004821 distillation Methods 0.000 description 10
- 238000009835 boiling Methods 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- 229940108066 Coal Tar Drugs 0.000 description 4
- 239000011280 coal tar Substances 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000002335 preservative Effects 0.000 description 4
- 239000003755 preservative agent Substances 0.000 description 4
- 206010022114 Injury Diseases 0.000 description 2
- 230000002939 deleterious Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000000149 penetrating Effects 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000002522 swelling Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
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
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/34—Organic impregnating agents
Definitions
- This invention consists of the process for preserving wood, as hereinafter described.
- Grude coal-tar is placed in a retort and distilled.
- the first products of distillation which are very light and ethereal in character, are passed off and are not available for this purpose.
- the heavier products, which come from the last distillation, are those which are used, and have a gravity of about 10 Baum, which will float water.
- the pavin g-blocks which are usually cut in lengths of about five or six inches, are fitted for the treatment without further preparation.
- the distilled product is placed in a large tank having a furnace beneath, and'is raised to a boiling-heat. This heat is of sufficient intensity to retain the boiling capacity after the blocks are inserted.
- the blocks are applied quickly in this mass and boiled for a space of five minutes, more or less, which causes the wood to swell and the pores to open, and the pungent and penetrating properties of the liquid enter and follow the grain from end to end, thus'permeating every part of the wood.
- the blocks are removed quickly before becoming sodden or erisped by the heat, which would injure the fiber. In due time after the removal the liquid will penetrate and spread through all the textures of the Wood and become equalized, filling all the pores.
- a necessary step in the process is to use only a given quality of the product of the distillation, viz, th atwhich approximates l0 Baum.
- a higher quality will etherealize and evaporate, leaving the pores still open, and thus fail to produce a preservative.
- a lower quality will. contain too much sediment, and obstruct the pores against a ready entrance of the liquid.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Description
PATENT OFFICE.
WILLIAM H. JONES, or ROCHESTER, NEW YORK.
IMPROVEMENT IN PROCESSES OF PRESERVING WOOD.
Specification forming part of Letters Patent No. 132,584, dated October 29, 1872.
To all whom it may concern:
Be it known that I, WM. H. JONES, of Rochester, in the county of Monroe and State of New York, have invented a certain Process for Preserving Wood, of which the following is a specification:
This invention consists of the process for preserving wood, as hereinafter described.
Grude coal-tar is placed in a retort and distilled. The first products of distillation, which are very light and ethereal in character, are passed off and are not available for this purpose. The heavier products, which come from the last distillation, are those which are used, and have a gravity of about 10 Baum, which will float water.
The pavin g-blocks, which are usually cut in lengths of about five or six inches, are fitted for the treatment without further preparation.
The distilled product is placed in a large tank having a furnace beneath, and'is raised to a boiling-heat. This heat is of sufficient intensity to retain the boiling capacity after the blocks are inserted. The blocks are applied quickly in this mass and boiled for a space of five minutes, more or less, which causes the wood to swell and the pores to open, and the pungent and penetrating properties of the liquid enter and follow the grain from end to end, thus'permeating every part of the wood. The blocks are removed quickly before becoming sodden or erisped by the heat, which would injure the fiber. In due time after the removal the liquid will penetrate and spread through all the textures of the Wood and become equalized, filling all the pores.
A necessary step in the process is to use only a given quality of the product of the distillation, viz, th atwhich approximates l0 Baum. A higher quality will etherealize and evaporate, leaving the pores still open, and thus fail to produce a preservative. A lower quality will. contain too much sediment, and obstruct the pores against a ready entrance of the liquid.
Another necessary step in the process is the boiling temperature of the liquid when the blocks are inserted. This produces a sudden swelling and expansion of the wood and opens the pores with rapidity, which a slow process of heating would not do. The quick removal, when the pores are filled, is also essential to prevent injury to the fiber.
The old process of treating wood to coal-tar in its crude state, or even artificially thinned below its natural state, is very imperfect to thoroughly impregnate the material. It contains a large amount of solid sediment, which cannot enter the wood and obstructs the entrance of the other parts. In fact, the solid matter and the liquid are so thoroughly combined that they will only enter together. The consequence is that wood treated with such material only becomes covered at the surface, with a very slight penetration.
In my process the solid matter is left behind in the distillation, and the product that passes over is simply a liquid which is free of these parts, which would obstruct the action, and which are really deleterious and useless as a preservative.
I do not confine myself to the treatment of pavingblocks alone in this way, but design to cover the treatment of all kinds of wood.
I claim- The process herein described fortreating wood, Yiz, by inserting the wood for a space of five minutes, more or less, in the product of coal-tar produced by distillation at a gravity approximating 10 Baum, said product being raised to boiling-heat at the time of insertion.
In witness whereof I have hereunto signed my name in the presence of two subscribing witnesses.
WM. H. JONES.
Witnesses:
R. F. Oseoon, A. BAINE.
Publications (1)
Publication Number | Publication Date |
---|---|
US132584A true US132584A (en) | 1872-10-29 |
Family
ID=2202001
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US132584D Expired - Lifetime US132584A (en) | Improvement in processes of preserving wood |
Country Status (1)
Country | Link |
---|---|
US (1) | US132584A (en) |
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0
- US US132584D patent/US132584A/en not_active Expired - Lifetime
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