US1008864A - Impregnation of wood, &c. - Google Patents
Impregnation of wood, &c. Download PDFInfo
- Publication number
- US1008864A US1008864A US1909517914A US1008864A US 1008864 A US1008864 A US 1008864A US 1909517914 A US1909517914 A US 1909517914A US 1008864 A US1008864 A US 1008864A
- Authority
- US
- United States
- Prior art keywords
- wood
- vacuum
- impregnating
- pressure
- impregnation
- 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 12
- 238000005470 impregnation Methods 0.000 title description 5
- 239000000463 material Substances 0.000 description 20
- 239000007788 liquid Substances 0.000 description 13
- 238000011282 treatment Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 239000007789 gas Substances 0.000 description 7
- 239000011148 porous material Substances 0.000 description 7
- 238000009489 vacuum treatment Methods 0.000 description 3
- 239000003755 preservative agent Substances 0.000 description 2
- 230000002335 preservative effect Effects 0.000 description 2
- WHRZCXAVMTUTDD-UHFFFAOYSA-N 1h-furo[2,3-d]pyrimidin-2-one Chemical group N1C(=O)N=C2OC=CC2=C1 WHRZCXAVMTUTDD-UHFFFAOYSA-N 0.000 description 1
- FOHHNHSLJDZUGQ-UHFFFAOYSA-N 3-(dibutylamino)-1-[1,3-dichloro-6-(trifluoromethyl)-9-phenanthrenyl]-1-propanol Chemical compound FC(F)(F)C1=CC=C2C(C(O)CCN(CCCC)CCCC)=CC3=C(Cl)C=C(Cl)C=C3C2=C1 FOHHNHSLJDZUGQ-UHFFFAOYSA-N 0.000 description 1
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical group CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 description 1
- 235000006173 Larrea tridentata Nutrition 0.000 description 1
- 244000073231 Larrea tridentata Species 0.000 description 1
- 239000002969 artificial stone Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229960002126 creosote Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- -1 felt Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 229960003242 halofantrine Drugs 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 239000003415 peat Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/4935—Impregnated naturally solid product [e.g., leather, stone, etc.]
- Y10T428/662—Wood timber product [e.g., piling, post, veneer, etc.]
Definitions
- rAx RfiPING 0E GHARLOTTENBURG, GERMANY, ASSIGNOB rro THE'FIBM 0E nuns- BERG & 01E, GESELLSCHAFT mrr EEscHRANKrEn HAETUNG, 0F GHARLOTTENBURG, GEmrANY, A conronA'rroN 0E GERMANY.
- My invention relates to improvements in methods of impregnating wood and other materials, this method being an improvement on my former patent, Reissue No. 12,707, dated'O'ctober 22, 1907.
- This invention relates to the so-called empty cell method of impregnation and is adapted for the impregnation of all sorts of porousmaterials, such as fabrics, wood, peat, paper, felt, artificial stone, and the like, but lts principal use is for impregnating railway ties, bridge and wharf timbers, and wooden articles which are exposed to the weather, for the purpose of preserving the same.
- This method consists in subjecting the air dried wood or other material submerged in the impregnating liquid in a closed vessel to a pressure sufficient to force the desired quantity of the preservative into the material, this pressure preferably not exceeding about three atmospheres. After this treatment has been continued for a short time, an hour or two for example, the impregnating liquid is drawn ed and a vacuum established in the vessel. The air which has been compressed in the material while the preservative'is being forced into the material vacuum,
- This treatment under a vacuum is continued for a short time, say from halfan hour to two hours more or less, for example.
- Air or an inert gas is then forced into the vessel under a pressure of up to six atmospheres and even more according to the nature of the material under treatment which pressure has the effect of causing the air or other gas to enter into the cells of the wood.
- This gas pressure treatment is continued for a short time, a half an hour or an hour for example, and then the pressure is released and a vacuum again established in the vessel, whereupon the air which has been forced into the material under treatment expels an .additional quantity of the impregnating liquid.
- the two steps last described may be repeated indefinitely, but it is desirable that the last step should be the vacuum treatment and not the gas pressure treatment, as the former (viz. the vacuum treatment) upon Patented Nov. 14, 1911. I Renewed September 1591909.
- I claim v 1 The method of impregnating wood and other poro'us materials',' which consists in subjecting the material under treatment to the action of an impregnating liquid at a pressure greater than that of the atmospheric air, and then subjecting the material to a vacuum, then breaking the vacuum, and subjecting the material to a gas pressure higherthan that of the atmospheric air, and then reestablishing the vacuum, substantially as described.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Description
U ITED STATES PATENT OFFICE.
rAx RfiPING, 0E GHARLOTTENBURG, GERMANY, ASSIGNOB rro THE'FIBM 0E nuns- BERG & 01E, GESELLSCHAFT mrr EEscHRANKrEn HAETUNG, 0F GHARLOTTENBURG, GEmrANY, A conronA'rroN 0E GERMANY.
IMPREGNATION OF WOOD, &O.
Specification of Letters Patent.
30, 1904, Serial No. 234,961. Serial No. 517,914.
To all whom it may concern:
Be it known that I, MAx RfiPrNe, a subject of the German Emperor, and resident of Charlottenburg, Prussia, Germany, haveinvented new and useful Improvements in the Impregnation of Wood and other Porous Materials, of which the following is a specification. Y
My invention relates to improvements in methods of impregnating wood and other materials, this method being an improvement on my former patent, Reissue No. 12,707, dated'O'ctober 22, 1907.
This invention relates to the so-called empty cell method of impregnation and is adapted for the impregnation of all sorts of porousmaterials, such as fabrics, wood, peat, paper, felt, artificial stone, and the like, but lts principal use is for impregnating railway ties, bridge and wharf timbers, and wooden articles which are exposed to the weather, for the purpose of preserving the same.
The methods used formerly had for their object the filling up of the cells or pores and hollow places of the material under treatment with the impregnating liquid; In contradistinction thereto, it is the object of my present invention, as well as 'of the reissue patent hereinbefore referred to, not to fill up the cells, pores, and cavities, completely with the impregnatin liquid, but only to impregnate the1r wa s with said liquid, or in other words to provide them with a coating of the latter and to leave the cells, pores, and cavities empty. The impregnating liquid which I prefer to use is creosote or heavy oil oftar, but I do not restrict myself to this particular liquid.
This method consists in subjecting the air dried wood or other material submerged in the impregnating liquid in a closed vessel to a pressure sufficient to force the desired quantity of the preservative into the material, this pressure preferably not exceeding about three atmospheres. After this treatment has been continued for a short time, an hour or two for example, the impregnating liquid is drawn ed and a vacuum established in the vessel. The air which has been compressed in the material while the preservative'is being forced into the material vacuum,
then expands and forces out a part of the liquid which has entered the pores of the Wood, and this liquid is then drained OK. This treatment under a vacuum is continued for a short time, say from halfan hour to two hours more or less, for example. Air or an inert gas is then forced into the vessel under a pressure of up to six atmospheres and even more according to the nature of the material under treatment which pressure has the effect of causing the air or other gas to enter into the cells of the wood. This gas pressure treatment is continued for a short time, a half an hour or an hour for example, and then the pressure is released and a vacuum again established in the vessel, whereupon the air which has been forced into the material under treatment expels an .additional quantity of the impregnating liquid. g
The two steps last described may be repeated indefinitely, but it is desirable that the last step should be the vacuum treatment and not the gas pressure treatment, as the former (viz. the vacuum treatment) upon Patented Nov. 14, 1911. I Renewed September 1591909.
reestablishing the atmospheric air pressure around the treated material will result in forcing the impregnating liquid into the interior of the wood or other'substance treated, leaving the outside dry.
I claim v 1. The method of impregnating wood and other poro'us materials',' which consists in subjecting the material under treatment to the action of an impregnating liquid at a pressure greater than that of the atmospheric air, and then subjecting the material to a vacuum, then breaking the vacuum, and subjecting the material to a gas pressure higherthan that of the atmospheric air, and then reestablishing the vacuum, substantially as described.
2. The method of impregnating wood and other porous materials, consisting in subjecting the material under treatment to the action of an impregnating liquid under a pressure of not more than three atmospheres, then. subjecting'the material to then subjecting the material to a gas pressure of several atmospheres and then reestablishing the vacuum, substantially as described.
5 a pressure of not more than three atmos- 3. The' method of impregnating wood said gas ressure aml -vacuum treatments, 10 andother plorous materials, consisting in substantia y as described.
Isubjecting t e material under treatment to p In testimony whereof, I aflix my slgnathe actlon of an impregnating l1 qu1d under 'ture, inpresence of two witnesses.
.- pheres, thensubjecting the material to a RUPING' vacuum, then subjecting'the material to a Witnesses: gas pressure of several atmospheres and then Wonimmn HAUPT,
restablishing the vacuum and repeating HENRY HASPER.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US1909517914 US1008864A (en) | 1909-09-15 | 1909-09-15 | Impregnation of wood, &c. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US1909517914 US1008864A (en) | 1909-09-15 | 1909-09-15 | Impregnation of wood, &c. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1008864A true US1008864A (en) | 1911-11-14 |
Family
ID=3077175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US1909517914 Expired - Lifetime US1008864A (en) | 1909-09-15 | 1909-09-15 | Impregnation of wood, &c. |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1008864A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3632409A (en) * | 1969-11-17 | 1972-01-04 | Jackson H Barnett Jr | Method of impregnating porous substrates with treating liquids |
| US3895138A (en) * | 1971-04-28 | 1975-07-15 | Boliden Ab | Impregnation of wood and the like |
-
1909
- 1909-09-15 US US1909517914 patent/US1008864A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3632409A (en) * | 1969-11-17 | 1972-01-04 | Jackson H Barnett Jr | Method of impregnating porous substrates with treating liquids |
| US3895138A (en) * | 1971-04-28 | 1975-07-15 | Boliden Ab | Impregnation of wood and the like |
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