US8406A - Improvement in tanning - Google Patents
Improvement in tanning Download PDFInfo
- Publication number
- US8406A US8406A US8406DA US8406A US 8406 A US8406 A US 8406A US 8406D A US8406D A US 8406DA US 8406 A US8406 A US 8406A
- Authority
- US
- United States
- Prior art keywords
- skins
- tanning
- arsenic
- improvement
- hides
- 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
- 229910052785 arsenic Inorganic materials 0.000 description 8
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- GOLCXWYRSKYTSP-UHFFFAOYSA-N Arsenious Acid Chemical compound O1[As]2O[As]1O2 GOLCXWYRSKYTSP-UHFFFAOYSA-N 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 244000286663 Ficus elastica Species 0.000 description 1
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 210000004209 hair Anatomy 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
- C14C1/00—Chemical treatment prior to tanning
- C14C1/08—Deliming; Bating; Pickling; Degreasing
Definitions
- my invention or new and useful improvement consists in the use or application of arsenic or arsenious acid to skins and hides during the process of tanning or otherwise preparing them by anyof the known processes for various useful purposes.
- the eifect of the arsenic is to preserve and give a permanent tone and strength to the animal fiber and to retard its tendency to decomposition.
- the effect is to be produced by immersing the hides or skins in a solution of arsenic in water, made sufficiently strong to accomplish the object. It'one pound of arsenic be dissolved in one hundred gallons of'water, at a temperature of about 100 Fahrenheit, it will be suftioient for ordinary purposes.
- the skins or hides should be immersed in the solution about twenty-four hours, it used when the skins are fresh, or before they have undergone other processes, which is deemed the most favorable period. If used after the liming process, the arsenic may be added to the usual hating-liquor, and a similar effect will be produced, or it may succeed the batin g process.
- VVorkmen should guard against the absorption of the poisonous qualities of the arsenic while immersing or handling the skins in the liquor by using tools or wearing india-rubber gloves.
- arsenic or arsenious acid substantially in the manner and for the purposes herein set forth.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Description
' UNITED STATES PATENT OFFICE.
NATHL. O. TOVLE, OF WASHINGTON, DISTRICT OF COLUMBIA.
IMPROVEMENT IN TANNING.
Specification forining'part of Letters Patent No. 8,406, dated October '7, 1851.
To all whom it may concern:
Be it known that I, NATHANIEL U. Towns, of the city of Washington, District of Columbia, have invented or discovered a new and useful Improvement in the Art of Tanning Skins and Hides, either with or without the wool, hair, or fur, and in preparing parchments or other manufactures of skins and hides; and I do hereby declare that the following is a full and exact description thereof.
The nature of my invention or new and useful improvement consists in the use or application of arsenic or arsenious acid to skins and hides during the process of tanning or otherwise preparing them by anyof the known processes for various useful purposes.
The eifect of the arsenic is to preserve and give a permanent tone and strength to the animal fiber and to retard its tendency to decomposition. The effect is to be produced by immersing the hides or skins in a solution of arsenic in water, made sufficiently strong to accomplish the object. It'one pound of arsenic be dissolved in one hundred gallons of'water, at a temperature of about 100 Fahrenheit, it will be suftioient for ordinary purposes. The skins or hides should be immersed in the solution about twenty-four hours, it used when the skins are fresh, or before they have undergone other processes, which is deemed the most favorable period. If used after the liming process, the arsenic may be added to the usual hating-liquor, and a similar effect will be produced, or it may succeed the batin g process.
The peculiar properties of arsenic by which it tends to suspend the natural tendency of the animal fiber to decomposition upon the extinction of animal life are well known,and of course they are not patentable; but their application to the processes of tanning and otherwise preparing skins and hides for useful purposes by which they are rendered stronger and more durable, is believed not to have been heretofore known and used. I do not therefore intend to limit my claim to any particular mode or period of using the article, but I shall apply it in such form or in such strength of solution as the nature of the case may require to effect the objects named.
VVorkmen should guard against the absorption of the poisonous qualities of the arsenic while immersing or handling the skins in the liquor by using tools or wearing india-rubber gloves.
After the skins are taken out of the liquor and rinsed thoroughly the danger ceases.
What I claim as my invention or discovery V as a new and useful improvement, and desire to secure by Letters Patent, is-
The use of arsenic or arsenious acid, substantially in the manner and for the purposes herein set forth.
N. C. TOWLE.
Witnesses:
B. B. FRENCH, H. H. SYLvEs'rEn.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US8406A true US8406A (en) | 1851-10-07 |
Family
ID=2068730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US8406D Expired - Lifetime US8406A (en) | Improvement in tanning |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US8406A (en) |
-
0
- US US8406D patent/US8406A/en not_active Expired - Lifetime
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