US3276073A - Cover for centrifugal spinning pot - Google Patents

Cover for centrifugal spinning pot Download PDF

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Publication number
US3276073A
US3276073A US353459A US35345964A US3276073A US 3276073 A US3276073 A US 3276073A US 353459 A US353459 A US 353459A US 35345964 A US35345964 A US 35345964A US 3276073 A US3276073 A US 3276073A
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US
United States
Prior art keywords
cover
pot
centrifugal spinning
spinning pot
centrifugal
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
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US353459A
Inventor
Colombu Eugene
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.)
Chimiotex SA
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Chimiotex
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Publication date
Application filed by Chimiotex filed Critical Chimiotex
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Publication of US3276073A publication Critical patent/US3276073A/en
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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H7/00—Spinning or twisting arrangements
    • D01H7/02—Spinning or twisting arrangements for imparting permanent twist
    • D01H7/74—Cup or like arrangements
    • D01H7/78—Constructions of cups, e.g. spinning boxes
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D7/00—Collecting the newly-spun products
    • D01D7/02—Collecting the newly-spun products in centrifugal spinning pots

Definitions

  • centrifugal pots employed more especially in the centrifugal spinning of artificial and synthetic filaments are provided with a detachable cover which is held fast on an inner cut-away portion of the edge of the pot by appropriate means during the winding of the filament.
  • the cover has a central hole for the passage of the spinning funnel actuated with a vertical reciprocating movement which ensures the formation of the cross filament layers of the cake thus formed in the pot.
  • the cover is generally flat and its horizontal bearing plane corresponds to the uppermost position of the vertical reciprocating movement of the funnel.
  • the turns are parallel to one another instead of being crossed and can thus slide between the cover and its seat on the pot if the closure is not perfect.
  • turns are likely to be damaged by the sliding efiect of the cover, which results in Weak points and even breakage's on the subsequent unwinding of the cake. Also, they may be simply entangled with other turns, which also give rise to a possibility of breaking during subsequent unwinding.
  • the invention makes it possible to obviate these disadvantages in a simple manner, namely by means of a convex, bell-shaped profile of the cover instead of the usual fiat form.
  • This arrangement also aflords the advantage of increasing the useful capacity of *a centrifugal pot for given vertical dimensions and of imparting to the cover a better dimensional stability.
  • the drawing shows a cover seated on a circular bearing surfiace within the edge of a pot.
  • the figure illustrates only the upper portion of the pot 1, with the groove 2 tor the resilient annular coil fior securing the cover 3.
  • the coil has not been shown. It may be replaced, for example, by a known open ring spring.
  • the cover 3 has a central hole 4 for the passage of the vertically reciprocable tunnel.
  • the cover 3 is convex and comprises a skirt 5 on its periphery, which centers the cover on the pot.
  • the said skirt has at 6 a conical inlet to facilitate the positioning of the cover in the pot. It bears under the effect of the vertical reaction due to the coil, on a machined circular portion 7 of the pot.
  • the internal profile of the cover is exactly fitted to the internal diameter of the pot.
  • the cover may be moulded from an appropriate plastic material, its bell shape imparting to it a rigidity which is not possessed by the cover of fiat -form, which very ofiten becomes warped.
  • a cover for a pot for the centrifugal spinning of artificial and synthetic filaments having a horizontal upper rim, said cover having a bell-shaped form with a tapering in the downward direction, which is seated on said upper rim of the centrifugal pot, said bell-shaped cover extending above said rim and having ⁇ a central opening for passage of a spinning funnel, said skirt having an internal diameter equal to the internal diameter of the pot.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Description

Oct. 4, 1966 E. COLOMBU Filed March 20, 1964 United States Patent 1 Claim. (:1. 1s-s The centrifugal pots employed more especially in the centrifugal spinning of artificial and synthetic filaments are provided with a detachable cover which is held fast on an inner cut-away portion of the edge of the pot by appropriate means during the winding of the filament.
The cover has a central hole for the passage of the spinning funnel actuated with a vertical reciprocating movement which ensures the formation of the cross filament layers of the cake thus formed in the pot. The cover is generally flat and its horizontal bearing plane corresponds to the uppermost position of the vertical reciprocating movement of the funnel.
It is known that the movement of the funnel is not exactly followed by the filament owing to the free length of filament between the funnel and the inner wall of the pot.
At each end of travel of the funnel, the turns are parallel to one another instead of being crossed and can thus slide between the cover and its seat on the pot if the closure is not perfect.
These turns are likely to be damaged by the sliding efiect of the cover, which results in Weak points and even breakage's on the subsequent unwinding of the cake. Also, they may be simply entangled with other turns, which also give rise to a possibility of breaking during subsequent unwinding.
The invention makes it possible to obviate these disadvantages in a simple manner, namely by means of a convex, bell-shaped profile of the cover instead of the usual fiat form.
This arrangement also aflords the advantage of increasing the useful capacity of *a centrifugal pot for given vertical dimensions and of imparting to the cover a better dimensional stability.
The invention will be more readily understood from an embodiment which is shown in the accompanying drawing, in which the figure is a sectional elevation of a pot and cover.
"ice
.The drawing shows a cover seated on a circular bearing surfiace within the edge of a pot. The figure illustrates only the upper portion of the pot 1, with the groove 2 tor the resilient annular coil fior securing the cover 3. The coil has not been shown. It may be replaced, for example, by a known open ring spring.
The cover 3 has a central hole 4 for the passage of the vertically reciprocable tunnel. The cover 3 is convex and comprises a skirt 5 on its periphery, which centers the cover on the pot. The said skirt has at 6 a conical inlet to facilitate the positioning of the cover in the pot. It bears under the effect of the vertical reaction due to the coil, on a machined circular portion 7 of the pot.
The internal profile of the cover is exactly fitted to the internal diameter of the pot. The cover may be moulded from an appropriate plastic material, its bell shape imparting to it a rigidity which is not possessed by the cover of fiat -form, which very ofiten becomes warped.
Owing to the fiact that the bearing plane of the bellshaped cover is oifset *at a certain distance below the upper dead-center of the vertical reciprocating movement, the turns of filament, when travelling past this hearing plane, are inclined in relation to the latter and thus cannot become engaged between the cover and the pot if the contact between the two is not perfect.
What is claimed is:
A cover for a pot for the centrifugal spinning of artificial and synthetic filaments, having a horizontal upper rim, said cover having a bell-shaped form with a tapering in the downward direction, which is seated on said upper rim of the centrifugal pot, said bell-shaped cover extending above said rim and having \a central opening for passage of a spinning funnel, said skirt having an internal diameter equal to the internal diameter of the pot.
References Cited by the Examiner UNITED STATES PATENTS 1,189,294 7/1916 Ruggles 22024 1,885,753 11/1932 Morton 188 X 1,956,805 5/1934 Meyer 22042 X 2,306,233 12/ 1942 Smith 220-42 X 543,147 2/ 1932 Germany.
263,239 12/ 1926 Great Britain.
FOREIGN PATENTS WILLIAM J. STEPHENSON, Primary Examiner.
US353459A 1963-03-22 1964-03-20 Cover for centrifugal spinning pot Expired - Lifetime US3276073A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR928926A FR1359906A (en) 1963-03-22 1963-03-22 Pot-turbine cover

Publications (1)

Publication Number Publication Date
US3276073A true US3276073A (en) 1966-10-04

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ID=8799868

Family Applications (1)

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US353459A Expired - Lifetime US3276073A (en) 1963-03-22 1964-03-20 Cover for centrifugal spinning pot

Country Status (5)

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US (1) US3276073A (en)
CH (1) CH404071A (en)
FR (1) FR1359906A (en)
GB (1) GB1030142A (en)
NL (1) NL6402765A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107761181A (en) * 2016-08-23 2018-03-06 吉林化纤股份有限公司 A kind of semi-continuous spin viscose glue continuous yarn long filament outer protection unit of spinning-drawing machine tophan box

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1189294A (en) * 1915-02-23 1916-07-04 Albert S Gill Packing-can.
GB263239A (en) * 1925-09-26 1926-12-28 James Lever Rushton Improvements in or relating to artificial silk and like spinning machines
DE543147C (en) * 1930-12-28 1932-02-02 Eduard Wurtz Reversible holder for the thread guides of the spinning pots of rayon spinning machines
US1885753A (en) * 1928-04-10 1932-11-01 Courtaulds Ltd Process and apparatus in and relating to the manufacture and production of artificial threads, filaments, and the like
US1956805A (en) * 1932-06-08 1934-05-01 Continental Motors Corp Engine
US2306233A (en) * 1940-04-23 1942-12-22 Maytag Co Means for alignment of cover to gear case

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1189294A (en) * 1915-02-23 1916-07-04 Albert S Gill Packing-can.
GB263239A (en) * 1925-09-26 1926-12-28 James Lever Rushton Improvements in or relating to artificial silk and like spinning machines
US1885753A (en) * 1928-04-10 1932-11-01 Courtaulds Ltd Process and apparatus in and relating to the manufacture and production of artificial threads, filaments, and the like
DE543147C (en) * 1930-12-28 1932-02-02 Eduard Wurtz Reversible holder for the thread guides of the spinning pots of rayon spinning machines
US1956805A (en) * 1932-06-08 1934-05-01 Continental Motors Corp Engine
US2306233A (en) * 1940-04-23 1942-12-22 Maytag Co Means for alignment of cover to gear case

Also Published As

Publication number Publication date
NL6402765A (en) 1964-09-23
FR1359906A (en) 1964-04-30
CH404071A (en) 1965-12-15
GB1030142A (en) 1966-05-18

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