US165314A - Improvement in processes of tanning hides - Google Patents
Improvement in processes of tanning hides Download PDFInfo
- Publication number
- US165314A US165314A US165314DA US165314A US 165314 A US165314 A US 165314A US 165314D A US165314D A US 165314DA US 165314 A US165314 A US 165314A
- Authority
- US
- United States
- Prior art keywords
- hides
- tanning
- improvement
- processes
- tanning 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
- 229910052799 carbon Inorganic materials 0.000 description 10
- VXMKYRQZQXVKGB-CWWHNZPOSA-N Tannin Chemical compound O([C@H]1[C@H]([C@@H]2OC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)O[C@H]([C@H]2O)O1)O)C(=O)C1=CC(O)=C(O)C(O)=C1 VXMKYRQZQXVKGB-CWWHNZPOSA-N 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- 230000005611 electricity Effects 0.000 description 8
- 235000018553 tannin Nutrition 0.000 description 8
- 229920001864 tannin Polymers 0.000 description 8
- 239000001648 tannin Substances 0.000 description 8
- HCHKCACWOHOZIP-UHFFFAOYSA-N zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 8
- 239000011701 zinc Substances 0.000 description 8
- 229910052725 zinc Inorganic materials 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 210000003491 Skin Anatomy 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 241000219495 Betulaceae Species 0.000 description 2
- 241001070941 Castanea Species 0.000 description 2
- 235000014036 Castanea Nutrition 0.000 description 2
- 239000000899 Gutta-Percha Substances 0.000 description 2
- 229920000588 Gutta-percha Polymers 0.000 description 2
- 240000000342 Palaquium gutta Species 0.000 description 2
- 241000219492 Quercus Species 0.000 description 2
- 235000016976 Quercus macrolepis Nutrition 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 235000020127 ayran Nutrition 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 235000018185 birch Nutrition 0.000 description 2
- 235000018212 birch Nutrition 0.000 description 2
- 150000001721 carbon Chemical class 0.000 description 2
- 239000003610 charcoal Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 230000036633 rest Effects 0.000 description 2
- 230000000284 resting Effects 0.000 description 2
- 230000003068 static Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
Classifications
-
- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14B—MECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL; PELT-SHEARING MACHINES; INTESTINE-SPLITTING MACHINES
- C14B1/00—Manufacture of leather; Machines or devices therefor
Definitions
- the bottom of my vat is formed of a plate of a carbon or' charcoal conductor, or by a bed of this carbon, coarsely ground, and spread over several plates of the same substance.
- a plate of zinc which rests on a layer of bark, and above the zinc is a final layer of wet bark.
- the nega-f' tive pole of the electric pile communicates with the zinc.
- the carbon remains undissolved, and a movement of transmission is established from one pole to the other through the skins.
- the basic elements go to the negative pole, the acids to the positive pole. From this results a constant molecular movement in. all the hides, and'the tannin alone is in action.
- poles each into several surfaces, according to the depth of the vat and the number of hides they contain. In this way time will be saved, and the skins will be more equally acted on; but under all circumstances there remains the one indispensable condition of an insoluble anode at the positive pole.
- the above arrangement is productive of advantage in tanning independently of the ap plication of electricity derived from an independent machine or apparatus.
- I would remark that I may apply an induction-current, derived from Ruhmkorff coil or other induction apparatus, to effect the tan ning of hides in the same way as the continuous current of an electric pile, or that derived from a magneto-electric machine.
- This application enables me to effect a considerable saving in expense, and, besides, does not require an insoluble anode.
- the molecular movement imparted to all the organic matter by the electric current hastens the tanning of the hides, and is itself a tanning agent.
- Static electricity produces exactly the same effects as dynamic electricity, and for the same reasons of molecular action.
- the described method of tanning hides which consists in arranging the wet bark and negative anodes, which connect with an electric pile'or other source of electric action, as
Description
UNITED STATES PATENT Orrron,
AUGUSTE DE MnRITENsoF PARIS, FRANCE.
IMPROVEMENT IN PRQCESSE S OF TANNING HIDES.
Specificai ion forming part of Letters Patent N0. 165,314, dated JulyG, 1875; applicaion filed June ll, 1875. V
To all whom it may concern:
Be it known that I, AUGUSTE DE MERITENs, of Paris, France, have invented certain new and useful Improvements in Tanning Hides by Means of Electricity, of which the following is a specification:
If through a solution of the bark of the oak, chestnut, or birch tree, or of any other matter containing tannin, there be passed an electric current, in such manner that one of the poles will be at the bottom of the receptacle, (comprehending, as far as possible, all of the bottom or lower surface of said receptacle,) while the other pole occupies, in like manner, the upper surface of the receptacle, and if the hides to be tanned be placed between the two poles, a continual movement takes place from one pole to the other. The basic elements move toward the negative pole, and the acid elements toward the positive pole. There results from this a general molecular movement,-
which acts on all the hides, and traverses them without cessation. The absorption of tannin is thus effected under excellent conditions, and with much more rapidity than is ordinarily the case. The most resistant material will be completely tanned in from thirty to thirty-five days-a very great gain over the old methods, which require from twelve to fifteen months.
If the tanning solution and the hides are.
The bottom of my vat is formed of a plate of a carbon or' charcoal conductor, or by a bed of this carbon, coarsely ground, and spread over several plates of the same substance. A
copper wire, covered with gutta-percha or other insulating material, is in contact with the carbou, ascends the vertical wall of the vat, and,
on the outside, connects with the positive pole of the electric pile.
A layer of bark, containing tannin properly impregnated with water, is spread over the carbon; over this is spread a hide, then a new layer of bark, then another hide, and so on. On top of the charge is placed a plate of zinc, which rests on a layer of bark, and above the zinc is a final layer of wet bark. The nega-f' tive pole of the electric pile communicates with the zinc. Through the charge thus prepared the electric current is caused to pass. The carbon remains undissolved, and a movement of transmission is established from one pole to the other through the skins. The basic elements go to the negative pole, the acids to the positive pole. From this results a constant molecular movement in. all the hides, and'the tannin alone is in action.
It is preferable to divide the poles each into several surfaces, according to the depth of the vat and the number of hides they contain. In this way time will be saved, and the skins will be more equally acted on; but under all circumstances there remains the one indispensable condition of an insoluble anode at the positive pole.
The above arrangement is productive of advantage in tanning independently of the ap plication of electricity derived from an independent machine or apparatus.
I would remark that I may apply an induction-current, derived from Ruhmkorff coil or other induction apparatus, to effect the tan ning of hides in the same way as the continuous current of an electric pile, or that derived from a magneto-electric machine. This application enables me to effect a considerable saving in expense, and, besides, does not require an insoluble anode.
The molecular movement imparted to all the organic matter by the electric current hastens the tanning of the hides, and is itself a tanning agent.
Static electricity produces exactly the same effects as dynamic electricity, and for the same reasons of molecular action.
I claim as my invention- 1. The described method of tanning hides, which consists in arranging the wet bark and negative anodes, which connect with an electric pile'or other source of electric action, as
described, and passing the electric current through the charge, all in the manner substantially as set forth.
2. As an improvement in the art of tanning, the arrangement of the hides and wet bark in alternate horizontal layers, the one resting on the other, between zinc or its equivalent on top, and carbon or its equivalent below, as herein described.
In testimony whereof I have signed mynanie to this specification before two subscribing witnesses.
AUGUSTE DE MEBITEN S.
Witnesses:
R0131. M. HOOPER, EMILE RICHARD.
Publications (1)
Publication Number | Publication Date |
---|---|
US165314A true US165314A (en) | 1875-07-06 |
Family
ID=2234723
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US165314D Expired - Lifetime US165314A (en) | Improvement in processes of tanning hides |
Country Status (1)
Country | Link |
---|---|
US (1) | US165314A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040213582A1 (en) * | 2002-10-08 | 2004-10-28 | Joyner Charles H. | Transmitter and receiver photonic integrated circuit (TxPIC and RxPIC) chips utilizing compact wavelength selective combiners/decombiners |
-
0
- US US165314D patent/US165314A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040213582A1 (en) * | 2002-10-08 | 2004-10-28 | Joyner Charles H. | Transmitter and receiver photonic integrated circuit (TxPIC and RxPIC) chips utilizing compact wavelength selective combiners/decombiners |
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