GB497796A - Improvements in or relating to extensible rubber threads - Google Patents
Improvements in or relating to extensible rubber threadsInfo
- Publication number
- GB497796A GB497796A GB17781/37A GB1778137A GB497796A GB 497796 A GB497796 A GB 497796A GB 17781/37 A GB17781/37 A GB 17781/37A GB 1778137 A GB1778137 A GB 1778137A GB 497796 A GB497796 A GB 497796A
- Authority
- GB
- United Kingdom
- Prior art keywords
- latex
- filaments
- rubber
- filament
- tank
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H1/00—Propulsive elements directly acting on water
- B63H1/30—Propulsive elements directly acting on water of non-rotary type
- B63H1/34—Propulsive elements directly acting on water of non-rotary type of endless-track type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D99/00—Subject matter not provided for in other groups of this subclass
- B29D99/0078—Producing filamentary 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
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/731—Filamentary material, i.e. comprised of a single element, e.g. filaments, strands, threads, fibres
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
497,796. Rubber thread. AMERICAN ANODE, Inc. June 25, 1937, No. 17781. Convention date, Aug. 15, 1936. [Class 70] [Also in Groups VIII and IX] In the method of making rubber threads by passing a tension-resisting filament through latex to deposit a coating of rubber on the filament and subsequently destroying the tension resisting filament to leave the coating of rubber as an extensible rubber thread, the filament is passed through the latex in a catenary-like sweep without contacting any supporting or guiding means while in contact with the latex or until the deposited rubber coating is set sufficiently to prevent deformation during subsequent handling. The tension resisting filaments may be cotton, wool, silk, or artificial silk, and they may be destroyed mechanically or chemically. The method may be carried out in the apparatus shown. A number of tension resisting filaments F are passed in succession through a bath C of coagulant for the latex, a wiping device B, a bath L of latex, a heater H, a washer W, a device P for applying adhesion preventing powder, a dryer D, a vulcanizer V, and a roller device R for breaking the internal filaments to leave tubular rubber threads T. The wiping device B comprises a pair of positively driven diverging endless rubber belts 12, 12, the lower ends of the belts being immersed in baths 13, 13 of cleaning solution. The latex bath L is constructed so that there may be a steady flow of the main body of the latex in the direction of travel of the filaments to ensure uniform coating of the filaments. The latex flows lengthwise of the main deposition tank 36, spills over a header 37 into a return chamber 38 underneath the tank 36 and then flows through a channel 40 into a sump 34 whence it is returned by a centrifugal pump 33 up the ramp 35 into the tank 36. The filaments guided by the guide member 45 and apertures 43 in a header 42 forming the end of the tank 36 enter the tank 36 horizontally and below the normal level of the latex therein. A minor proportion of the latex escapes through the apertures 43 into a sump 44, whence it flows into the channel 40 and the main sump 33. In order to maintain the desired catenary sweep of the filaments the speed of the feed rollers 17, 17 on the outlet side of the heater H may be varied with respect to that of the feed roller 14 on the inlet side of the latex bath and this variation may be controlled by a photoelectric device 22. The heating of the coated filaments in the heater H should be sufficient to firmly set the surface but not to dry the deposit completely. The roller breaking device comprises a pair of rotating steel rollers 55 driven at a surface speed substantially the same as the rate of travel of the coated filaments. The coagulant may be a solution of calcium nitrate in acetone or alcohol containing a small proportion of lactic acid. To the coagulant there may be added a chemical which will slowly weaken or even completely destroy the filament, e.g. if a cellulose ester filament is used there may be added to the coagulant a small proportion of a solvent for the cellulose ester such as ethyl acetate, methyl aceto-acetate, ethyl aceto-acetate, 2 ethyl-butyl acetate, or isopropyl acetate.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US497796XA | 1918-02-27 | 1918-02-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB497796A true GB497796A (en) | 1938-12-28 |
Family
ID=21961688
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB17781/37A Expired GB497796A (en) | 1936-08-15 | 1937-06-25 | Improvements in or relating to extensible rubber threads |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR497796A (en) |
GB (1) | GB497796A (en) |
-
1919
- 1919-04-03 FR FR497796D patent/FR497796A/en not_active Expired
-
1937
- 1937-06-25 GB GB17781/37A patent/GB497796A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR497796A (en) | 1919-12-17 |
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