GB396572A - Method of manufacture of tubes, posts or other hollow ware - Google Patents

Method of manufacture of tubes, posts or other hollow ware

Info

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
Application number
GB2671732A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB2671732A priority Critical patent/GB396572A/en
Publication of GB396572A publication Critical patent/GB396572A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B21/00Methods or machines specially adapted for the production of tubular articles
    • B28B21/42Methods or machines specially adapted for the production of tubular articles by shaping on or against mandrels or like moulding surfaces
    • B28B21/50Details 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.
GB2671732A 1932-02-25 1932-02-25 Method of manufacture of tubes, posts or other hollow ware Expired GB396572A (en)

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)

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