GB400869A - Improvements in the manufacture of insulating tubes - Google Patents
Improvements in the manufacture of insulating tubesInfo
- Publication number
- GB400869A GB400869A GB13332/33A GB1333233A GB400869A GB 400869 A GB400869 A GB 400869A GB 13332/33 A GB13332/33 A GB 13332/33A GB 1333233 A GB1333233 A GB 1333233A GB 400869 A GB400869 A GB 400869A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mould
- tube
- mandrel
- wound
- strip
- 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
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/92—Methods or apparatus for treating or reshaping
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
400,869. Fibrous tubes. NAAMLOOZE VENNOOTSCHAP MAATSCHAPPIJ TOT BEHEER EN EXPLOITATIE VAN OCTROOIEN, 57, Zeekant, The Hague. May 8, 1933, No. 13332. Convention date, May 17, 1932. [Class 99 (ii).] A tube for use as a heat non-conducting covering for a pipe &c. comprises glass silk or like fibrous material 5 with an outer layer 12 of helically-wound strip paper, asbestos, metal, &c., and it is formed in apparatus comprising a rotatable mandrel 1 with radial ribs 4 and a surrounding mould 2 having an internal thread 3. The fibrous material is fed to the mandrel and is wound thereon to form a charge 5 which is forced into the mould to engage the thread 3 by a member 6, slidable upon the mandrel and having slots to accommodate the ribs 4 thereof, whereupon it is caused to move helically forward. Simultaneously the paper &c. strip 12 from a roll 11, after passage over a glueing roller 14, is fed to the mould through a longitudinal slot 10 in its wall and is consequently wound upon the previously-formed fibrous body. Several outer layers may be applied simultaneously to the tube, in which case a corresponding number of lead-in slots are provided in the mould, and when strip metal is used adjacent coils may be united by welding or soldering. The completed tube is cut into lengths by a disc &c. saw 16, and another saw (not shown), may be provided for slitting the tube longitudinally so as to enable it to be bent open for application to the pipe.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE400869X | 1932-05-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB400869A true GB400869A (en) | 1933-11-02 |
Family
ID=6402502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB13332/33A Expired GB400869A (en) | 1932-05-17 | 1933-05-08 | Improvements in the manufacture of insulating tubes |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB400869A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8743030B2 (en) * | 2005-09-16 | 2014-06-03 | Semiconductor Energy Laboratory Co., Ltd. | Display device and driving method of display device |
-
1933
- 1933-05-08 GB GB13332/33A patent/GB400869A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8743030B2 (en) * | 2005-09-16 | 2014-06-03 | Semiconductor Energy Laboratory Co., Ltd. | Display device and driving method of display device |
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