GB379789A - An improved pourer or hopper for use in the manufacture of transparent films, bands,foils or the like of regenerated cellulose derived from viscose, cuprammonium and other cellulose solutions - Google Patents

An improved pourer or hopper for use in the manufacture of transparent films, bands,foils or the like of regenerated cellulose derived from viscose, cuprammonium and other cellulose solutions

Info

Publication number
GB379789A
GB379789A GB17867/31A GB1786731A GB379789A GB 379789 A GB379789 A GB 379789A GB 17867/31 A GB17867/31 A GB 17867/31A GB 1786731 A GB1786731 A GB 1786731A GB 379789 A GB379789 A GB 379789A
Authority
GB
United Kingdom
Prior art keywords
lips
hopper
pict
viscose
rigid structure
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
GB17867/31A
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
HERBERT HALLAM
TRANSPARENT PAPER Ltd
Original Assignee
DAVID LESLIE PELLATT
HERBERT HALLAM
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, HERBERT HALLAM, TRANSPARENT PAPER Ltd filed Critical DAVID LESLIE PELLATT
Priority to GB17867/31A priority Critical patent/GB379789A/en
Publication of GB379789A publication Critical patent/GB379789A/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
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/305—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
    • 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
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

<PICT:0379789/IV/1> <PICT:0379789/IV/2> <PICT:0379789/IV/3> <PICT:0379789/IV/4> An extrusion device for making films, bands, or foils from viscose, cupraammonium and other cellulose solutions comprises a rigid structure constituting the pourer body, a movable lip or lips of noncorrosive material fitted to the bottom of the rigid structure with micrometric horizontal adjustment, and a seal of resilient material such as rubber inserted between the lips and the rigid structure to prevent leakage. Adjustable end plates may be provided for preventing leakage while allowing for differences in thermal expansion between the lips and the rigid structure, and for adjustment of the lips. A filter may be inserted between the pourer body and its lid. The pourer body may be of iron and the lips of nickel. As shown in the drawings, the width of the extrusion slit between the lips A, B is adjusted by the micrometer D operating on the movable lip A. A rubber joint E is inserted between the lip A and the wall F of the pourer body in order to prevent leakage. End plates H are provided with holes L into which fit dowel-pins J attached to the walls F, G of the hopper. Steady pins K are provided on the plates H which are bolted to the lips A, B by studs passing through the holes M. A rubber joint I is fitted into a recess between the end plate H and the end wall of the hopper in order to assist in reliably sealing the hopper. As shown in Fig. 4 the filter, which forms an integral part of the lid of the hopper, consists of a framework of iron or steel N recessed to support a mesh of steel wire which carries the filtering medium R such as cotton cloth, cambric, calico, swansdown, or raised twill. The filtering medium is stretched over the wire mesh and the framework N by rubber jointing. Viscose is fed into the hopper through inlets O provided with baffles to ensure even distribution. Air releases are provided by the holes P.
GB17867/31A 1931-06-19 1931-06-19 An improved pourer or hopper for use in the manufacture of transparent films, bands,foils or the like of regenerated cellulose derived from viscose, cuprammonium and other cellulose solutions Expired GB379789A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB17867/31A GB379789A (en) 1931-06-19 1931-06-19 An improved pourer or hopper for use in the manufacture of transparent films, bands,foils or the like of regenerated cellulose derived from viscose, cuprammonium and other cellulose solutions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB17867/31A GB379789A (en) 1931-06-19 1931-06-19 An improved pourer or hopper for use in the manufacture of transparent films, bands,foils or the like of regenerated cellulose derived from viscose, cuprammonium and other cellulose solutions

Publications (1)

Publication Number Publication Date
GB379789A true GB379789A (en) 1932-09-08

Family

ID=10102600

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17867/31A Expired GB379789A (en) 1931-06-19 1931-06-19 An improved pourer or hopper for use in the manufacture of transparent films, bands,foils or the like of regenerated cellulose derived from viscose, cuprammonium and other cellulose solutions

Country Status (1)

Country Link
GB (1) GB379789A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2923971A (en) * 1960-02-09 Extrusion nozzle
DE1225846B (en) * 1956-01-16 1966-09-29 Scherer Corp R P Slot caster for producing films from gelatine or the like.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2923971A (en) * 1960-02-09 Extrusion nozzle
DE1225846B (en) * 1956-01-16 1966-09-29 Scherer Corp R P Slot caster for producing films from gelatine or the like.

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