GB396572A - Method of manufacture of tubes, posts or other hollow ware - Google Patents
Method of manufacture of tubes, posts or other hollow wareInfo
- Publication number
- GB396572A GB396572A GB2671732A GB2671732A GB396572A GB 396572 A GB396572 A GB 396572A GB 2671732 A GB2671732 A GB 2671732A GB 2671732 A GB2671732 A GB 2671732A GB 396572 A GB396572 A GB 396572A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bucket
- cord
- pipes
- travel
- pipe
- 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
- B28B21/42—Methods or machines specially adapted for the production of tubular articles by shaping on or against mandrels or like moulding surfaces
- B28B21/50—Details of compression or compacting means
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Moulds, Cores, Or Mandrels (AREA)
Abstract
396,572. Moulding concrete pipes. VIANINI, G., 33, Via Nizza, Rome. Feb. 25, 1932, No. 26717. Divided on and addition to 382,290. [Class 87 (ii).] In a method of making asbestos cement &c. pipes according to the parent Specification the weight suspended from the endless cord is automatically or manually increased during the operation so as gradually to increase the compression exerted on the wall of the pipe. At the end of its travel the cord runs on to a coned pulley 5 and the bucket 4 strikes a lever 6 to open a flap 9 allowing gravel &c. to enter the bucket. A reversing switch for the motor 14 is then actuated by adjustable contacts 24, 25, and the direction of travel of the cord is reversed. Weight may be added to the bucket at each end of the pipe. The method may be applied to metal and other pipes covered with a layer of cement.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2671732A GB396572A (en) | 1932-02-25 | 1932-02-25 | Method of manufacture of tubes, posts or other hollow ware |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2671732A GB396572A (en) | 1932-02-25 | 1932-02-25 | Method of manufacture of tubes, posts or other hollow ware |
Publications (1)
Publication Number | Publication Date |
---|---|
GB396572A true GB396572A (en) | 1933-08-10 |
Family
ID=10248118
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2671732A Expired GB396572A (en) | 1932-02-25 | 1932-02-25 | Method of manufacture of tubes, posts or other hollow ware |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB396572A (en) |
-
1932
- 1932-02-25 GB GB2671732A patent/GB396572A/en not_active Expired
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