US70878A - Improvement in bleaching stock for paper - Google Patents
Improvement in bleaching stock for paper Download PDFInfo
- Publication number
- US70878A US70878A US70878DA US70878A US 70878 A US70878 A US 70878A US 70878D A US70878D A US 70878DA US 70878 A US70878 A US 70878A
- Authority
- US
- United States
- Prior art keywords
- stock
- paper
- improvement
- bleaching
- gas
- 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
- 238000004061 bleaching Methods 0.000 title description 8
- 229910052801 chlorine Inorganic materials 0.000 description 10
- 239000000460 chlorine Substances 0.000 description 10
- ZAMOUSCENKQFHK-UHFFFAOYSA-N chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 10
- KZBUYRJDOAKODT-UHFFFAOYSA-N chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 8
- 239000002253 acid Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000010902 straw Substances 0.000 description 2
Images
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
- D21B1/14—Disintegrating in mills
- D21B1/16—Disintegrating in mills in the presence of chemical agents
Definitions
- This invention has for its object the bleaching of paper-stock in a more economical manner than hitherto; and consists in subjecting the stock to the action of chlorine gas while the former is undergoing'the process of comminution in what is known as the rag-engine,77 or the stock agitated in a close vessel.
- Figure l is a side sectional view of my invention, taken in the line a: a', Fig. 2; Fig. 2, a plan or top view of the same.
- A represents an ordinary rag-engine, commonly used for comminuting paper-stock, rags, straw, or other fiber, the work being accomplished by the rotation of a toothed or corrugated cylinder, B, in a concave, C, at the upper part of. a double-inclined elevation, D, in a suitable box or'reservoir, E.
- This rag-engine is provided with a tight cover, F, and the box or reservoir E is supplied with a chlorine solution.
- muriatic, sulphuric, or other suitable gas is admitted into the box or reservoir E, and chlorine gasis thereby disengaged from the chlorine solution.
- This gas in consequence of being closely confined within the box or reservoir E of the engine, attacks or acts upon the ber or stock which is being constantly thrown up and exposed to the gas by the action of the cylinder B, and the ber or stock and the gas thereby brought in direct contact, and the former properly bleached.
- an ordinary close vessel may be employed, with an agitator of any suitable kind placed in it, and an acid admitted into the vessel to set free or disenlgage the chlorine gas om the chlorine solu' tion; or chlorine gas may be admitted directly into the vessel.
- an agitator of any suitable kind placed in it, and an acid admitted into the vessel to set free or disenlgage the chlorine gas om the chlorine solu' tion; or chlorine gas may be admitted directly into the vessel.
Description
UNITED STATES. PATENT OEEIoE.
S. T. MERRILL, OF BELOIT, WISCONSIN.
IMPROVEMENT IN BLEACHING STOCK FOR PAPER.
Specification forming part of Letters Patent No. 70,878, dated November 12, 1867.
To all whom it may concern:
Be it known that I, S. T. MERRILL, of Beloit, in the county of Rock and State of Wisconsin, have made and invented a new and useful Improvement in Bleaching Paper-Stock 5 and I do herebypdeclare that the following is a full, clear, and exact description thereof, which will enable those'skilled lin the art to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon.
This invention has for its object the bleaching of paper-stock in a more economical manner than hitherto; and consists in subjecting the stock to the action of chlorine gas while the former is undergoing'the process of comminution in what is known as the rag-engine,77 or the stock agitated in a close vessel.
In the accompanying sheet of drawings, Figure l is a side sectional view of my invention, taken in the line a: a', Fig. 2; Fig. 2, a plan or top view of the same.
Similar letters of reference indicate like parts.
A represents an ordinary rag-engine, commonly used for comminuting paper-stock, rags, straw, or other fiber, the work being accomplished by the rotation of a toothed or corrugated cylinder, B, in a concave, C, at the upper part of. a double-inclined elevation, D, in a suitable box or'reservoir, E. These parts, being of ordinary construction, do not require a special description. This rag-engine is provided with a tight cover, F, and the box or reservoir E is supplied with a chlorine solution. When the engine is in operation, muriatic, sulphuric, or other suitable gas is admitted into the box or reservoir E, and chlorine gasis thereby disengaged from the chlorine solution. This gas, in consequence of being closely confined within the box or reservoir E of the engine, attacks or acts upon the ber or stock which is being constantly thrown up and exposed to the gas by the action of the cylinder B, and the ber or stock and the gas thereby brought in direct contact, and the former properly bleached.
In lieu of the rag-engine, an ordinary close vessel may be employed, with an agitator of any suitable kind placed in it, and an acid admitted into the vessel to set free or disenlgage the chlorine gas om the chlorine solu' tion; or chlorine gas may be admitted directly into the vessel. It will be seen, however, that the most desirable and economical plan would be to use the closely-covered rag-engine, as it, by having the close cover, is made to perform simultaneously two dferentfunctions-to wit, its legitimate one of comminuting the stock or ber, and the throwing up of the latter to subject it to the action of the gas.
Having thus described my invention, I claim as new and desire to secure-by Letters Patentengine, or other close vessel provided with an agitator, of chlorine gas, or the disengaging of the latter from a chlorine solution contained' Within the box of the enginevor other vessel,
for the purpose of bleaching paper-stock, substantially as set forth.
The above speciiication of my invention signed by me this 3d day of September, 1867.
S. T. MERRILL.
The introduction into a close-covered rag-
Publications (1)
Publication Number | Publication Date |
---|---|
US70878A true US70878A (en) | 1867-11-12 |
Family
ID=2140395
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US70878D Expired - Lifetime US70878A (en) | Improvement in bleaching stock for paper |
Country Status (1)
Country | Link |
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US (1) | US70878A (en) |
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0
- US US70878D patent/US70878A/en not_active Expired - Lifetime
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