GB340076A - Method and apparatus for continuously drawing tubes and rods of glass and the like - Google Patents

Method and apparatus for continuously drawing tubes and rods of glass and the like

Info

Publication number
GB340076A
GB340076A GB3193529A GB3193529A GB340076A GB 340076 A GB340076 A GB 340076A GB 3193529 A GB3193529 A GB 3193529A GB 3193529 A GB3193529 A GB 3193529A GB 340076 A GB340076 A GB 340076A
Authority
GB
United Kingdom
Prior art keywords
glass
mandrel
tube
blocks
supported
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
GB3193529A
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.)
NAAMLOOZE VENNOOTSCHAAP MIJ TO
Original Assignee
NAAMLOOZE VENNOOTSCHAAP MIJ TO
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 NAAMLOOZE VENNOOTSCHAAP MIJ TO filed Critical NAAMLOOZE VENNOOTSCHAAP MIJ TO
Priority to GB3193529A priority Critical patent/GB340076A/en
Publication of GB340076A publication Critical patent/GB340076A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B17/00—Forming molten glass by flowing-out, pushing-out, extruding or drawing downwardly or laterally from forming slits or by overflowing over lips
    • C03B17/04—Forming tubes or rods by drawing from stationary or rotating tools or from forming nozzles

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Making Paper Articles (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)

Abstract

340,076. Glass manufacture. DICKER, S. G. S., 20, Holborn, London.-(Naamlooze Vennootschap Maatschappij tot Exploitatie van Uitvindingen, 67, Wynhaven, Rotterdam, Holland.) Oct. 21, 1929, No. 31935. [Class 56.] Drawing ; forming tubes and rods.-Relates to the method of making glass tubes or rods in which cylindrical blocks of glass are threaded on a mandrel, or piled in a tube, the lower end of the mandrel or tube being shaped to support the blocks. The lower end of the pile is heated, and the glass flows downwards and is drawn away by suitable mechanism. According to the present invention, the mandrel or tube is rotated continuously to secure a more regular distribution of the glass. In the apparatus shown in Fig. 1, the glass blocks 11 are inserted in the upper end of an inclined tube 10 which is supported by rollers 15, 16 and is provided with a gear wheel 17 by which it is rotated. The lower end, 12, of the tube is constricted to support the blocks, and it is heated by burners 13. The blocks are shaped as shown in Fig. 2 so that they centre one another when piled, and they may have a central aperture 14 through which air may be blown to maintain the bore of the glass tube as it is formed. The aperture may be dispensed with, the lower end of the holder 10 being formed as a bulbous enlargement so that the molten glass spreads along its sides and forms a tube at the outlet. In the construction shown in Fig. 3, the holder consists of a tubular mandrel 20 supported by three bearings 21 which are spaced apart so that glass blocks can rest between them. Each bearing consists of a pair of pivoted jaws, and the upper jaw of a pair carries gear wheels which transmit the rotation of a driving-shaft 40 to gear teeth formed on a reduced portion of the mandrel. The jaws can be opened to allow a glass block to slip down the mandrel, and by using three of these bearings, the mandrel is constantly supported and rotated. In the construction shown in Fig. 6, a mandrel 50 is supported by a bearing 51 and driven by a pinion 52. Each of the glass blocks 53 is made in two halves, as shown in Fig. 7, and to hold them together the mandrel is surrounded by a rotatable tube 54 which is heated by a burner 55 to fuse the blocks together.
GB3193529A 1929-10-21 1929-10-21 Method and apparatus for continuously drawing tubes and rods of glass and the like Expired GB340076A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3193529A GB340076A (en) 1929-10-21 1929-10-21 Method and apparatus for continuously drawing tubes and rods of glass and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3193529A GB340076A (en) 1929-10-21 1929-10-21 Method and apparatus for continuously drawing tubes and rods of glass and the like

Publications (1)

Publication Number Publication Date
GB340076A true GB340076A (en) 1930-12-24

Family

ID=10330585

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3193529A Expired GB340076A (en) 1929-10-21 1929-10-21 Method and apparatus for continuously drawing tubes and rods of glass and the like

Country Status (1)

Country Link
GB (1) GB340076A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2653418A (en) * 1949-10-13 1953-09-29 Gen Electric Apparatus for drawing vitreous tubes and rods
CN112266153A (en) * 2020-10-20 2021-01-26 凯盛君恒有限公司 Glass tube forming device and using method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2653418A (en) * 1949-10-13 1953-09-29 Gen Electric Apparatus for drawing vitreous tubes and rods
CN112266153A (en) * 2020-10-20 2021-01-26 凯盛君恒有限公司 Glass tube forming device and using method thereof
CN112266153B (en) * 2020-10-20 2023-01-10 凯盛君恒有限公司 Glass tube forming device and using method thereof

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