GB735992A - Improvements in the manufacture of insulating tubes - Google Patents
Improvements in the manufacture of insulating tubesInfo
- Publication number
- GB735992A GB735992A GB28293/53A GB2829353A GB735992A GB 735992 A GB735992 A GB 735992A GB 28293/53 A GB28293/53 A GB 28293/53A GB 2829353 A GB2829353 A GB 2829353A GB 735992 A GB735992 A GB 735992A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- mandrel
- casing
- compression
- pulp
- 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
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21J—FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
- D21J3/00—Manufacture of articles by pressing wet fibre pulp, or papier-mâché, between moulds
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Insulating Bodies (AREA)
- Thermal Insulation (AREA)
Abstract
735,992. Tubes of fibrous material. VIAL, P., and SIBILLE, R. Oct. 14, 1953 [Oct. 28, 1952], No. 28293/53. Class 99 (2). [Also in Group XVI] An electrical insulating tube is formed by winding a layer of pulp of cellulosic fibres onto a mandrel, e.g. a rubber-covered and expansible mandrel (see Group XVI), and subjecting the tube thus obtained to an outwardly-directed, radial compression while the tube is partially moist. Subsequently the tube may be impregnated with an insulating composition which fills the spaces between the fibres. As shown, paper pulp flows from a distributer 1 to a trough 3 and is deposited on an endless wire cloth 4 passing over a number of suction boxes 5 which draw most of the water from the pulp. The layer of pulp is wound onto the mandrel 6 resting on the cloth 4 and rotatably supported by oscillatable arms 7. The mandrel carrying the still moist tube may be disposed within a casing, e.g. a two-part block, and then expanded so that the tube is compressed against the casing; alternatively, the casing is formed by a metal tube, a sheet-iron plate wound onto the tube and held in place by a coiled wire, a tube of wire cloth, or wire cloth wound around the tube. The tube may be partially dried before compression, or wholly dried after compression, and while still mounted on the mandrel; alternatively the tube is submitted to a drying operation when removed from the mandrel and, if necessary, with the aid of a further support. When the casing comprises a wire cloth, drying of the tube is carried out with the casing in position. If the tube is subjected to a limited degree of compression the outer periphery of the tube is dried to form a hard outer layer and compression takes place without the use of a casing.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR735992X | 1952-10-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB735992A true GB735992A (en) | 1955-08-31 |
Family
ID=9130847
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB28293/53A Expired GB735992A (en) | 1952-10-28 | 1953-10-14 | Improvements in the manufacture of insulating tubes |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB735992A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4098862A (en) * | 1975-08-23 | 1978-07-04 | Markhorst Robert L | Process for the manufacture of polygonal cardboard tube segments |
-
1953
- 1953-10-14 GB GB28293/53A patent/GB735992A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4098862A (en) * | 1975-08-23 | 1978-07-04 | Markhorst Robert L | Process for the manufacture of polygonal cardboard tube segments |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ES365141A1 (en) | Apparatus for drying fibrous webs on external drums | |
GB1374965A (en) | Porous coating web material and method for its manufacture | |
GB735992A (en) | Improvements in the manufacture of insulating tubes | |
ES303795A1 (en) | Procedure to manufacture fiber bands. (Machine-translation by Google Translate, not legally binding) | |
GB522974A (en) | Improvements in and relating to methods of making flanged cylinders and convered gaskets | |
ES413166A1 (en) | Procedure for the preparation of paper manufacturers charged with electroluminising material and conductor network. (Machine-translation by Google Translate, not legally binding) | |
EP0043289A3 (en) | Method and apparatus for manufacturing paper and paperboard | |
US1598793A (en) | Method of and means for making machine-glazed paper | |
US1854230A (en) | Manufacture of waterproof tubing from cellulose pulp | |
US2303124A (en) | Apparatus for handling articles | |
US3101722A (en) | Drum dryer | |
SU716527A3 (en) | Method of manufacturing multilayer fibrous sheet material | |
CN208087964U (en) | A kind of single rope knob clothes hanger | |
GB704610A (en) | Improvements in the production of moulded bodies from mineral wool and binding agents | |
US1764624A (en) | Method of coating material | |
US1672973A (en) | Method for coating cores | |
SU94549A1 (en) | Method for making artificial sausage casing | |
US1529974A (en) | Substitute for metallic foil and process of producing the same | |
US1615390A (en) | Method and apparatus for coating cores | |
US2454854A (en) | Drying wound packages | |
GB854501A (en) | Process for the manufacture of coated paper | |
FR2436571A1 (en) | Making fibrous cigarette filter material moisture resistant - using boric acid and polyvinyl alcohol | |
GB774213A (en) | Improvements in or relating to paper-making machines | |
US1120433A (en) | Paper-making apparatus. | |
FR1193345A (en) | Siphon for rotary drying drum, suitable for use in papermaking machines |