GB413832A - Improvements in or relating to the manufacture of seamless casings of regenerated cellulose from viscose, cuprammonium cellulose or the like - Google Patents

Improvements in or relating to the manufacture of seamless casings of regenerated cellulose from viscose, cuprammonium cellulose or the like

Info

Publication number
GB413832A
GB413832A GB11937/33A GB1193733A GB413832A GB 413832 A GB413832 A GB 413832A GB 11937/33 A GB11937/33 A GB 11937/33A GB 1193733 A GB1193733 A GB 1193733A GB 413832 A GB413832 A GB 413832A
Authority
GB
United Kingdom
Prior art keywords
cellulose
liquid
mandrel
viscose
tube
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
GB11937/33A
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.)
DAVID LESLIE PELLATT
TRANSPARENT PAPER Ltd
Original Assignee
DAVID LESLIE PELLATT
TRANSPARENT PAPER Ltd
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 DAVID LESLIE PELLATT, TRANSPARENT PAPER Ltd filed Critical DAVID LESLIE PELLATT
Priority to GB11937/33A priority Critical patent/GB413832A/en
Publication of GB413832A publication Critical patent/GB413832A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/919—Thermal treatment of the stream of extruded material, e.g. cooling using a bath, e.g. extruding into an open bath to coagulate or cool the material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Abstract

<PICT:0413832/IV/1> Apparatus for making seamless casings of regenerated cellulose from viscose, cuprammonium cellulose, or other solutions comprises an annular extrusion nozzle and a detachable and collapsable mandrel which is preferably expanded by means of a non-compressible fluid such as water. The mandrel may be deflated or removed when starting the operation but as soon as the tube of regenerated cellulose issues from the annular orifice and is taken up by the rollers in the precipitating bath, the mandrel is inserted through the top of the nozzle and inflated to the required size. This may be effected by the introduction of a measured quantity of liquid. As shown in Fig. 1 an annular nozzle A is arranged in a coagulating bath F. A collapsable former C consisting of a rubber envelope is kept in position by a tube I through which liquid for inflating the former is introduced. Precipitating liquid fed through the pipe E bathes the interior of the extruded tube J. An overflow D is provided for removal of excess precipitating liquid. The extruded tube J passes round the rollers K.
GB11937/33A 1933-04-24 1933-04-24 Improvements in or relating to the manufacture of seamless casings of regenerated cellulose from viscose, cuprammonium cellulose or the like Expired GB413832A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB11937/33A GB413832A (en) 1933-04-24 1933-04-24 Improvements in or relating to the manufacture of seamless casings of regenerated cellulose from viscose, cuprammonium cellulose or the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB11937/33A GB413832A (en) 1933-04-24 1933-04-24 Improvements in or relating to the manufacture of seamless casings of regenerated cellulose from viscose, cuprammonium cellulose or the like

Publications (1)

Publication Number Publication Date
GB413832A true GB413832A (en) 1934-07-26

Family

ID=9995375

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11937/33A Expired GB413832A (en) 1933-04-24 1933-04-24 Improvements in or relating to the manufacture of seamless casings of regenerated cellulose from viscose, cuprammonium cellulose or the like

Country Status (1)

Country Link
GB (1) GB413832A (en)

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