US142298A - Improvement in the processes for softening and toughening blocks of wood - Google Patents
Improvement in the processes for softening and toughening blocks of wood Download PDFInfo
- Publication number
- US142298A US142298A US142298DA US142298A US 142298 A US142298 A US 142298A US 142298D A US142298D A US 142298DA US 142298 A US142298 A US 142298A
- Authority
- US
- United States
- Prior art keywords
- wood
- blocks
- softening
- toughening
- improvement
- 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 18
- 238000000034 method Methods 0.000 title description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 239000000126 substance Substances 0.000 description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 239000004328 sodium tetraborate Substances 0.000 description 4
- 235000010339 sodium tetraborate Nutrition 0.000 description 4
- 238000009835 boiling Methods 0.000 description 2
- 238000010025 steaming Methods 0.000 description 2
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/693—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural or synthetic rubber, or derivatives thereof
Definitions
- My invention relates to an improved process for softening and toughening blocks of wood preparatory to cutting them into veneers or boards with a veneer-cutting machine.
- My process consists in filling the tank half full of hot water, and then placing in the water a quantity of ammonia or borax, or both combined, so as to make a strong solution of these substances.
- the quantity of these substances to be employed will be governed by the quantity of water in the tank in each case,
- Blocks prepared in this way can be out into veneers or boards of any desired thickness without trouble, and will retain their flexibility after becoming dry an indefinite length of v time.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Description
UNITED STATES PATENT OFFIGE.
GEORGE W. SWAN, OF SAN FRANCISCO, CALIFORNIA.
IMPROVEMENT IN THE PROCESSES FOR SOFTENING AND IOUGHENING BLOCKS 0F WOOD.
Specification forming part of Letters Patent No. 142.298, dated August 26, 1873; application filed June 17, 1873.
To all whom it may concern:
' fornia, have invented an Improved Process for Softening and Toughening Blocks of Wood; and I do hereby declare the following description sufficient to enable any person skilled in the art or science to which it most nearly appertains to make and use my said invention or improvement without further invention or experiment.
My invention relates to an improved process for softening and toughening blocks of wood preparatory to cutting them into veneers or boards with a veneer-cutting machine.
Heretofore it has been the practice to either steam the blocks of wood or boil them in hot water before cutting them into veneers, in order to soften the wood and render it pliable, so that it would not split while being cut. This process, however, would only admit of .the cutting of very thin veneers, and in some kinds of wood even this imperfectly.
My process consists in filling the tank half full of hot water, and then placing in the water a quantity of ammonia or borax, or both combined, so as to make a strong solution of these substances. The quantity of these substances to be employed will be governed by the quantity of water in the tank in each case,
no particular quantity being required so long as the solution is made strong with the chemicals. I then place the blocks of wood in the tank until it is filled and the solution covers them, after which I cover the tank closely and introduce steam from a steam-boiler into the bottom of the tank, or apply heat to it, as most convenient. The blocks, are thus left until they become thoroughly saturated and steamed, the length of time required varying according to the character of the wood.
Blocks prepared in this way can be out into veneers or boards of any desired thickness without trouble, and will retain their flexibility after becoming dry an indefinite length of v time.
Having thus described my invention, what I claim, and desire to secure by Letters Patent, is
The process of boiling or steaming blocks of wood in a solution of ammonia and borax, substantially as and for the purpose above dc scribed.
In witness whereof I hereunto set my hand and seal.
GEORGE W. SWAN. [L. s.]
Witnesses:
JOHN L. BOONE', 0. M. RICHARDSON.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US142298A true US142298A (en) | 1873-08-26 |
Family
ID=2211711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US142298D Expired - Lifetime US142298A (en) | Improvement in the processes for softening and toughening blocks of wood |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US142298A (en) |
-
0
- US US142298D patent/US142298A/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| NO115680B (en) | ||
| US142298A (en) | Improvement in the processes for softening and toughening blocks of wood | |
| US887683A (en) | Method of starching fabric. | |
| US53610A (en) | Improvement in preparing timber for cutting into veneers | |
| US102665A (en) | Richard a | |
| USRE5289E (en) | Improvement in machines and processes for making paste | |
| US779761A (en) | Process of fireproofing wood. | |
| US2567292A (en) | Method of impregnating wood with chemical solutions | |
| US92406A (en) | Improvement in the manufacture of granulated sugar | |
| US1266957A (en) | Manufacture of wood-pulp. | |
| US148752A (en) | Improvement in processes of treating wood for bending | |
| USRE4384E (en) | Improvement in processes of seasoning lumber | |
| US436007A (en) | Process of disintegrating pine-needles | |
| US1194404A (en) | ifficintyre | |
| USRE11515E (en) | Process of preserving timber | |
| US1775387A (en) | Process of treating lumber | |
| US107620A (en) | Improvement in preserving- and hardening wood | |
| US197220A (en) | Improvement in production of wooden bottle-stoppers and bungs | |
| US1403536A (en) | Process of staining wood | |
| US234143A (en) | Proges | |
| US659313A (en) | Apparatus for manufacturing cellulose. | |
| US243502A (en) | Dayid h | |
| AT76327B (en) | Method and device for the production of sub-fuze. | |
| US110738A (en) | Improvement in preserving woods | |
| US321233A (en) | Joegen geobg maaedt |