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US1873685A - Apparatus for spinning tubular bodies made of cellulose - Google Patents

Apparatus for spinning tubular bodies made of cellulose Download PDF

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Publication number
US1873685A
US1873685A US341433A US34143329A US1873685A US 1873685 A US1873685 A US 1873685A US 341433 A US341433 A US 341433A US 34143329 A US34143329 A US 34143329A US 1873685 A US1873685 A US 1873685A
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United States
Prior art keywords
cellulose
bodies made
tubular bodies
spinning
nozzle
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 - Lifetime
Application number
US341433A
Inventor
Voss Julius
Schade Arthur
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.)
Visking Corp
Original Assignee
Visking Corp
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 Visking Corp filed Critical Visking Corp
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Publication of US1873685A publication Critical patent/US1873685A/en
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    • 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

Definitions

  • the present invention relates to an apparatus for spinning tubular bodies made of cellulose.
  • D is an annular nozzle which is open at both ends the nozzle is provided with inlet pipes V and V through which viscose is introduced.
  • a bar Sis fitted the upper part of which is movable and which is provided with a number of rings R R R etc., and ends in a triangular piece B as shown on thedrawing.
  • the member B may be in the form of a closed triangle but its lower rim may also be discontinuous or made in such a manner that its width can be adjusted as desired.
  • elements S and B correspond to elements S and B, respectively, of Fig. 1.
  • the tube S is provided with a number of rings R and R and carries at its lower end a triangular piece B which is connected to S by means ofmovable members as shown on the drawing.
  • the tubular body is made in the following manner: The core (tube S with the rings R) is lifted out of the nozzle D; the viscose is then pressed into the precipitating bath through the tubes V and V and the inferior part of the nozzle D; the tubular body is then distended by introducing the precipitating bath inside the tubular body.
  • the core S is then caused to descend gradually into the tubular body and the element B is adj usted to the desired width.
  • the tubular body is supported during the precipitation process by the rings R; the latter also give the precipitating bath everywhere access to the tubular body and assure also a constantly uniform composition of the precipitating bath inside the tubular body.
  • the element B causes the tubular body to pass into a bandlike form without the edges becoming bent over.
  • annular nozzle open on both ends, and a core which can be freely moved upwards and downwards inside of the nozzle.
  • annular nozzle open on both ends, and a core which can be freely moved upwards and. downwards inside of the nozzle, which core is provided with at least one ring and at its lower part with a triangular piece.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Description

J. VOSS ET AL Aug. 23, 1932.
APPARATUS FOR SPINNING TUBULAR BODIES MADE OF CELLULOSE Filed Feb. 20, 1929 v ark" war.
Patented Aug. 23, 1932 UNITED STATES PATENT OFFICE JULIUS VOSS AND ARTHUR SCHADE, OF WIESBADEN-BIEBRIGH, GERMANY, ASSIGN- ORS, BY MESN E ASSIGNMENTS, TO THE VISKIN G CORPORATION, OF CHICAGO, ILLI- NOIS, A CORPORATION OF VIRGINIA APPARATUS FOR SPINNING TUBULAR BODIES MADE OF CELLULOSE Application filed February 20, 1929, Serial No. 341,433, and in Germany February 23, 1928.
The present invention relates to an apparatus for spinning tubular bodies made of cellulose.
We have found that in apparatus as they are in use for spinning tubular bodies made of cellulose, the spinning start easily takes place by employing in the first place an annular nozzle which is open at both ends, and by placing into the said nozzle a specially formed core the size of which can be adjusted upwards and downwards. ,Any difiiculties caused by the conduit for the precipitating bath and the nozzle becoming clogged are avoided and the change of the tubular body into a band-like form also takes place without the latter becoming wrinkled. A'device of the above described kind is illustrated in the accompanying drawing, in which Fig. 1 is a vertical section through one form of apparatus and Fig. 2 is a fragmentary view, partially in cross section, showing a modified form of a detail.
In Fig. 1, D is an annular nozzle which is open at both ends the nozzle is provided with inlet pipes V and V through which viscose is introduced. Within the nozzle a bar Sis fitted the upper part of which is movable and which is provided with a number of rings R R R etc., and ends in a triangular piece B as shown on thedrawing. The member B may be in the form of a closed triangle but its lower rim may also be discontinuous or made in such a manner that its width can be adjusted as desired.
In Fig. 2 elements S and B correspond to elements S and B, respectively, of Fig. 1. The tube S is provided with a number of rings R and R and carries at its lower end a triangular piece B which is connected to S by means ofmovable members as shown on the drawing. A. bar H situated within the tube S when moved upwards or downwards, enlarges or reduces respectively, the width of the element B 7 The tubular body is made in the following manner: The core (tube S with the rings R) is lifted out of the nozzle D; the viscose is then pressed into the precipitating bath through the tubes V and V and the inferior part of the nozzle D; the tubular body is then distended by introducing the precipitating bath inside the tubular body. The core S is then caused to descend gradually into the tubular body and the element B is adj usted to the desired width. The tubular body is supported during the precipitation process by the rings R; the latter also give the precipitating bath everywhere access to the tubular body and assure also a constantly uniform composition of the precipitating bath inside the tubular body. The element B causes the tubular body to pass into a bandlike form without the edges becoming bent over.
'We claim:
1. In an apparatus for spinning from above downwards tubular bodies made of cellulose, an annular nozzle open on both ends, and a core which can be freely moved upwards and downwards inside of the nozzle.
2. In an apparatus for spinning from above downwards tubular bodies made of cellulose, an annular nozzle open on both ends, and a core which can be freely moved upwards and. downwards inside of the nozzle, which core is provided with at least one ring and at its lower part with a triangular piece.
3. In an apparatus for spinning from above downwards tubular bodies made of cellulose, an annular nozzle open on both ends, and a core which can be freely moved upwards and downwards inside of the nozzle, which core is provided with at least one ring and at its lower part with a triangular piece,
the width of which can be adjusted.
In testimony whereof, we ailix our signatures.
JULIUS .VOSS. ARTHUR SCHADE.
US341433A 1928-02-23 1929-02-20 Apparatus for spinning tubular bodies made of cellulose Expired - Lifetime US1873685A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1873685X 1928-02-23

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2462807A (en) * 1944-04-04 1949-02-22 Danner Edward Apparatus for the manufacture of tubular glassware
US5773035A (en) * 1996-07-01 1998-06-30 Alfacel S.A. Tubular cellulosic casing die
US5783131A (en) * 1996-08-27 1998-07-21 Alfacel S.A. Method to slowly regenerate cellulosic sausage casing

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2462807A (en) * 1944-04-04 1949-02-22 Danner Edward Apparatus for the manufacture of tubular glassware
US5773035A (en) * 1996-07-01 1998-06-30 Alfacel S.A. Tubular cellulosic casing die
US5783131A (en) * 1996-08-27 1998-07-21 Alfacel S.A. Method to slowly regenerate cellulosic sausage casing

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