US1321201A - Process for reclaiming rubber and cotton from waste - Google Patents
Process for reclaiming rubber and cotton from waste Download PDFInfo
- Publication number
- US1321201A US1321201A US1321201DA US1321201A US 1321201 A US1321201 A US 1321201A US 1321201D A US1321201D A US 1321201DA US 1321201 A US1321201 A US 1321201A
- Authority
- US
- United States
- Prior art keywords
- rubber
- cotton
- waste
- sheet
- picker
- 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
- 229920000742 Cotton Polymers 0.000 title description 52
- 239000002699 waste material Substances 0.000 title description 42
- 238000000034 method Methods 0.000 title description 22
- 239000004744 fabric Substances 0.000 description 18
- 239000000835 fiber Substances 0.000 description 16
- 239000000463 material Substances 0.000 description 8
- 239000002245 particle Substances 0.000 description 8
- 238000000926 separation method Methods 0.000 description 8
- 210000001138 Tears Anatomy 0.000 description 4
- 238000007664 blowing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 239000002985 plastic film Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 235000012495 crackers Nutrition 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000002657 fibrous material Substances 0.000 description 2
- 108060002971 flz Proteins 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002093 peripheral Effects 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/02—Separating plastics from other materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2021/00—Use of unspecified rubbers as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2030/00—Pneumatic or solid tyres or parts thereof
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S209/00—Classifying, separating, and assorting solids
- Y10S209/93—Municipal solid waste sorting
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S241/00—Solid material comminution or disintegration
- Y10S241/31—Rubber preparation
Definitions
- my invention involves the use of novel methods of separating the rubber from the cotton. Y At the time the plies or strands are torn from the sheet and stripped of rubber I permit both the rubber and the cotton to be thrown-bythe picking machinery With considerable force and effect a separation by the different physical qualities of the two when so thrown. For example, if the two are thrown against an inclined boardthe cotton will slide down the board or, if Wet enough, W1ll stick to it, while therubber will bounce some distance away.
- the co'tstick to the conveyer 9'and is carried over the upper end of this conveyer, from which it drops to the floor.
- the fine fibers of cotton that dry so rapidly that they do not stick to the conveyer 9 are largely carried over the top of this conveyer by the. draft created through the rotation of the wheel 8.
- Separation of the lint from the air current may be accomplished by inclosing the picker in a casing 11, in one side of which is a screen 12. While the material behind the conveyer 9 will be found to be largely cotton, and the bulk of the rubber will be in the receptacle 10, it is not to be understoodthat one pass through this picker will give a. clean separation.
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Processing Of Solid Wastes (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Description
w P. E. YOUNG.
PROCESS FOR RECLAIMING RUBBER AND COTTON FROM WASTE. APPLICATION FILED SEPTI-19. 1918.
1,321,201 Patented Nov. 11, 1919.
UNITED s TEs PATENT OFFICE.
PHILIP E. YOUNG, or FAIRHAVEN, MASSACHUSETTS, ASSIGNOR 'ro AcUsHfIE'r rnocEss COMPANY; 1110., A CORPORATION OF NEW YORK.
PROCESS FOR BECLA-IMING RUBBER AND common rRoM wAsrE.
To all whom iii-may concern Be it lmown that I, PHILIP E. Young, of F airhaven, Massachusetts, have made certain new and useful Improvements in Proc- .esses for Reclaiming Rubber and Cotton from Waste, of which the following s a.
specification.
Many elforts have been made to reclaim Waste containing both cotton and rubber in such manner that both products will be obtained in forms of value. It has been pointed out in the application of Theodore F. Furness, Serial No. 163,520, filed April 20, 1917, that such a result can be obtained by disintegrating the fabric while in the presence of water and stripping the rubber from the threads and fibers resulting from such disintegration. My process relates to an improved method of disintegratlng the fabric and stripping the rubber from the threads and fibers, whereby material savings in operation are had and improved products are obtained.
As an illustration of my invention I Wlll describe it as applied to the uncured trimmings resulting from the manufacture of automobile tires that are known to the trade as friction scrap. This waste largely consists of strips of canvas with which the rubber is very closely incorporated. 1 The fabric in the strip is usually cut on the'bias so that if the strip is about half an inch wide the threads of the fabric willnot be substantially more than three-quarters of an inch long. Such a strip can very readily be unwoven into its separate threads but, if so unwoven, each thread will remain largely coated with rubber. I have discovered, however, that if such a strip is wet and subjected to a strenuous plcking operatlon which will tear out from the strip not the threads themselves but the strands of plies of the threads, the rubber will tend tocohere into small balls and the strands that are torn loose will be stripped practically clean bf rubber. It is, of course, impracticable to or particles.
In addition to. my improved method of progressively disintegratlng the fabric and stripping the rubber from thethreads and ers, my invention involves the use of novel methods of separating the rubber from the cotton. Y At the time the plies or strands are torn from the sheet and stripped of rubber I permit both the rubber and the cotton to be thrown-bythe picking machinery With considerable force and effect a separation by the different physical qualities of the two when so thrown. For example, if the two are thrown against an inclined boardthe cotton will slide down the board or, if Wet enough, W1ll stick to it, while therubber will bounce some distance away. So if both are thrown horizontally or in an upward direction the rubber will be thrown some distance away while the cotton will drop very near the point from which it is thrown. *These'efiects may also be aided by blowing or winnowing the cotton from the rubber. In other words I use the same force which helps in -pickingthe cotton from the rubber, to impart motion to both, and effect a separation through their difference-in mass and density.
In practising my invention I first pass the fridtionscrap through an ordinary cracker mill and sheet it in thepresence of water, and then feed it into a picker, such as the one diagrammatically represented in the ac- Specifieation of Letters Patent. Patented Nov, 11 1919,
Application filed September 19,1918. I Serial No. 254,761.
companying drawing. The wet'sheet formed I per minute up the surface of thefeed plate 5 against which it is held by the roll 6. As the sheet emerges from between the feed plate 5 and the roll 6, it comes in contact with the-teeth 7 of the cylinder 8. This cylinder rotates with a peripheral speed of from 3,000 to 5,000 feet per minute so that the teeth tear the plies or strands out of the fabric. As the cotton fibers are torn from the waste the rubber collects in small balls I The cotton and rubber together are thrown by the wheel 8 against the conveyor apr0n 9, and the rubber, having a considerable resiliency, bounces from the conveyer 9 into aconveniently placed receptacle 10, as shown in dotted lines. The co'tstick to the conveyer 9'and is carried over the upper end of this conveyer, from which it drops to the floor. The fine fibers of cotton that dry so rapidly that they do not stick to the conveyer 9 are largely carried over the top of this conveyer by the. draft created through the rotation of the wheel 8. Separation of the lint from the air current may be accomplished by inclosing the picker in a casing 11, in one side of which is a screen 12. While the material behind the conveyer 9 will be found to be largely cotton, and the bulk of the rubber will be in the receptacle 10, it is not to be understoodthat one pass through this picker will give a. clean separation. However, if the cotton is partly dried, one or two additional passes through the machine will leave it sufficiently clean to be garnetted and carded; in like manner the rubber should be resheeted and given a second pass-or more if necessary. After substantially all of the cotton is picked out ,of the rubber, the latter should be washed.
For this purpose I have found that while there is considerable difliculty in getting the rubber clean on an ordinary wash mill, very satisfactory results can be obtained by the use of the type of wash mill shown in United States Patent No. 1,267,492, of May 28, 1918.
To have my process operate to the. best advantage it is advisable that the sheet of ,rubber waste, on which the picker roll operates, be wet. It also will be found that this process is far more effective on rubber waste in which the rubber has a considerable degree of plasticity, such as uncured friction scrap. With other forms of waste it may be necessary, first, to subject the rubber to some well known plasticizing treatment, for I find it highly desirable that the waste should be in such condition that it will sheet and not pulverize upon being ground on a mill-a condition exactly the reverseof that desired by those who heretofore have attempted to separate cotton from rubber by winnowing or similar processes.
It will be readily apparent that my process can be carriedout on many types of machine other than the one suggested in the drawings and I do not wish to limit myself to the type of machine shown.
It is also apparent that this process can be used to separate w-ool or silk from rubber, if waste containing these materials is obtainable. The use of cotton is described in the claims and specification for illustrative purposes only, as this is substantially the only fibrous material found to any greatextent in rubber scrap.
What I claim is: Y
1. The process of separating cotton fiber or the like from rubber wast which con prises the steps of wetting the waste, pass-' ing the waste between rollers whereby the waste is, formed into a sheet, and feeding such sheet gradually to a high speed picker or the like from rubber waste which comprises the steps of forming the waste into a plastic sheet, feeding the sheet gradually to a high speed picker whereby threads and fibers of the cotton ai'e progressively torn from the sheet and simultaneously stripped of rubber and the plastic rubber is torn from the sheet in small aggregates, throwing the cotton and rubber through the air before opportunity is given for the material to reform into large aggregates, and separating cotton from the rubber during the movement imparted by such throwing.
3. The process of separating cotton fiber or the like. from rubber waste which comprises forming the waste into a moist plastic mass sucli that particles er rubber from the mass will tend to cohere to each other more readily than such particles will adhere to fibers of the fabric and comminuting such mass by the action of a picker whereby threads and fibers of the fabric are produced substantially free from rubber, and the rubher is produced in the form of small aggregates without the formation of rubber dust.
4. The process of separating cotton fiber or the like from rubber waste which comrises forming the waste into a plastic sheet, feeding the sheet gradually to a picker so thatthreads and fibers of cotton and small aggregates of the rubber are torn from the edge of the sheet, throwing the rubber and waste gradually to a high speed P101161" whereby the fabric is torn from the waste in the form of threads and fibers and the rubber is torn into small particles, throwing the. cotton and rubber together from the picker and separating cotton from the rub her by blowing the cotton out of its normal course.
PHILIP E. YOUNG.
Publications (1)
Publication Number | Publication Date |
---|---|
US1321201A true US1321201A (en) | 1919-11-11 |
Family
ID=3388666
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US1321201D Expired - Lifetime US1321201A (en) | Process for reclaiming rubber and cotton from waste |
Country Status (1)
Country | Link |
---|---|
US (1) | US1321201A (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2471043A (en) * | 1945-06-19 | 1949-05-24 | Benjamin Epstein | Treating waste rubber, etc. |
US2526355A (en) * | 1946-03-21 | 1950-10-17 | Riley Stoker Corp | Pulverizing apparatus |
US2736319A (en) * | 1953-06-29 | 1956-02-28 | Molins Machine Co Ltd | Tobacco-feeding apparatus |
US2890493A (en) * | 1953-11-25 | 1959-06-16 | Fibrofelt Corp | Method and means for defibering materials |
US3098264A (en) * | 1960-06-25 | 1963-07-23 | Meinicke Erich | Multiple swift textile waste tearing machine |
US3364526A (en) * | 1961-06-03 | 1968-01-23 | Varady Sandor | Process for the recovery of textile fibers from motor vehicle tires |
US3463311A (en) * | 1967-11-07 | 1969-08-26 | Ocean Spray Cranberries Inc | Crusher separator apparatus and method |
US3617590A (en) * | 1966-12-29 | 1971-11-02 | Harry O Neukomm | Process for producing thermoplastic filter material |
WO2000000290A1 (en) * | 1998-06-30 | 2000-01-06 | The United States Of America, As Represented By The Secretary Of Agriculture | A method for separating elastomeric particulates from fibers |
US6325215B1 (en) | 1999-04-07 | 2001-12-04 | The United States Of America As Represented By The Secretary Of Agriculture | Method and apparatus for separating elastomeric particulates and fibers from a pulverized mixture |
-
0
- US US1321201D patent/US1321201A/en not_active Expired - Lifetime
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2471043A (en) * | 1945-06-19 | 1949-05-24 | Benjamin Epstein | Treating waste rubber, etc. |
US2526355A (en) * | 1946-03-21 | 1950-10-17 | Riley Stoker Corp | Pulverizing apparatus |
US2736319A (en) * | 1953-06-29 | 1956-02-28 | Molins Machine Co Ltd | Tobacco-feeding apparatus |
US2890493A (en) * | 1953-11-25 | 1959-06-16 | Fibrofelt Corp | Method and means for defibering materials |
US3098264A (en) * | 1960-06-25 | 1963-07-23 | Meinicke Erich | Multiple swift textile waste tearing machine |
US3364526A (en) * | 1961-06-03 | 1968-01-23 | Varady Sandor | Process for the recovery of textile fibers from motor vehicle tires |
US3617590A (en) * | 1966-12-29 | 1971-11-02 | Harry O Neukomm | Process for producing thermoplastic filter material |
US3463311A (en) * | 1967-11-07 | 1969-08-26 | Ocean Spray Cranberries Inc | Crusher separator apparatus and method |
WO2000000290A1 (en) * | 1998-06-30 | 2000-01-06 | The United States Of America, As Represented By The Secretary Of Agriculture | A method for separating elastomeric particulates from fibers |
US6536690B1 (en) | 1998-06-30 | 2003-03-25 | The United States Of America As Represented By The Secretary Of Agriculture | Method for separating elastomeric particulates from fibers |
US6325215B1 (en) | 1999-04-07 | 2001-12-04 | The United States Of America As Represented By The Secretary Of Agriculture | Method and apparatus for separating elastomeric particulates and fibers from a pulverized mixture |
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