US75691A - Improvement in bleaching paper-stock - Google Patents
Improvement in bleaching paper-stock Download PDFInfo
- Publication number
- US75691A US75691A US75691DA US75691A US 75691 A US75691 A US 75691A US 75691D A US75691D A US 75691DA US 75691 A US75691 A US 75691A
- Authority
- US
- United States
- Prior art keywords
- stock
- improvement
- paper
- bleaching paper
- bleaching
- 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 6
- 239000012530 fluid Substances 0.000 description 6
- 239000002184 metal Substances 0.000 description 4
- 239000002023 wood Substances 0.000 description 4
- 241000681094 Zingel asper Species 0.000 description 2
- 210000000038 chest Anatomy 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- 230000001066 destructive Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 239000000463 material 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
- 239000000126 substance Substances 0.000 description 2
Images
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
- D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
Definitions
- This invention has for its object the elimination of bleaching-fluids from paper-stock without the use of draining vats or chests, thereby saving a greater portion of the chlorine or other bleaching solution, and arresting its destructive power, so that from a given quantity of material a larger yield of paper will be obtained.
- Figure l is a perspective view ofthe apparatus or machine to be used to accomplish the objects herein ⁇ set forth.
- Fig. 2 is a sectional view of the4 same.
- A represent the driving-pulley;
- B B rubber rolls, pressed together by the screws F F acting on springs of rubber or metal E E.
- D D D represent the rolls for the felts O 0 O, that guide the stuff77 S through the rubber rolls;
- K pressure-roll;
- l perforated or grooved platform, (for supporting the felt or apron loaded with stuii',) and for which rolls may be substituted;
- H H the box or vat for the escaping fluids.
- the rubber rolls may be connected and controlled with gears, and pressed together as in the ordinary clothes-wrin ger, or with levers andweights.
- the machine may be constructed with one or more pairs of rubber rolls, or with pairs of one of rubber and one of metal o1 wood.
- any suitable press may be used for discharging bleachingliquors from what is technically known as stuff or half-stuff. 4
Description
UNITEDk STATES PATENT OEEICE.
S. T. MEBRILLOF BELOIT, WISCONSIN.
IMPROVEMENT IN BL'EACHING PAPER-STOCK.
Specication forming part of Letters Patent No. 75,691, dated March 17, 1868.
To all 'whom it may concern:
Be itknown 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 Eliminating Bleaching-Fluids and in Desiccating Paper-Stock; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable those skilled in the art to make and use the same, reference being had to the accompanying drawings, and to the letters of reference thereon.
This invention has for its object the elimination of bleaching-fluids from paper-stock without the use of draining vats or chests, thereby saving a greater portion of the chlorine or other bleaching solution, and arresting its destructive power, so that from a given quantity of material a larger yield of paper will be obtained.
y It has also for its object Vthe desiccation of fibrous substances before they have been bleached, and preparatory to the bleaching process.
In the accompanying drawings, Figure l is a perspective view ofthe apparatus or machine to be used to accomplish the objects herein `set forth. Fig. 2 is a sectional view of the4 same.
Similar letters of reference indicate like parts.
A represent the driving-pulley; B B, rubber rolls, pressed together by the screws F F acting on springs of rubber or metal E E. D D D represent the rolls for the felts O 0 O, that guide the stuff77 S through the rubber rolls; Q Q desiccated stuff; K, pressure-roll; l), perforated or grooved platform, (for supporting the felt or apron loaded with stuii',) and for which rolls may be substituted; H H, the box or vat for the escaping fluids.
The rubber rolls may be connected and controlled with gears, and pressed together as in the ordinary clothes-wrin ger, or with levers andweights. The machine may be constructed with one or more pairs of rubber rolls, or with pairs of one of rubber and one of metal o1 wood.
In lieu of the rubber rolls, any suitable press may be used for discharging bleachingliquors from what is technically known as stuff or half-stuff. 4
Having described my invention, I claim as new and desire t0 secure by Letters Patentl. The manipulation of paper-stock (particularly wood and straw) in the bleachingfluids without the use of draining-vats.
2. The desiccation of stuff and half-stuff with rubber rolls, substantially asset forth.
S. T. MERRILL.
i Witnesses:
D. W. C. GAsTLE, W. T. RANDALL.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US75691A true US75691A (en) | 1868-03-17 |
Family
ID=2145195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US75691D Expired - Lifetime US75691A (en) | Improvement in bleaching paper-stock |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US75691A (en) |
-
0
- US US75691D patent/US75691A/en not_active Expired - Lifetime
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