US3828539A - Open-end textile spinning machines - Google Patents

Open-end textile spinning machines Download PDF

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Publication number
US3828539A
US3828539A US00340082A US34008273A US3828539A US 3828539 A US3828539 A US 3828539A US 00340082 A US00340082 A US 00340082A US 34008273 A US34008273 A US 34008273A US 3828539 A US3828539 A US 3828539A
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US
United States
Prior art keywords
feed
pedal
roller
feed pedal
opening roller
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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US00340082A
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English (en)
Inventor
K Norman
F Croasdale
J Clayton
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Hollingsworth UK Ltd
Original Assignee
Platt International Ltd
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Publication date
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Publication of US3828539A publication Critical patent/US3828539A/en
Assigned to HOLLINGSWORTH (UK) LIMITED, SCAITCLIFFE ST., ACCRINGTON, LANCASHIRE ENGLAND, AN ENGLISH COMPANY reassignment HOLLINGSWORTH (UK) LIMITED, SCAITCLIFFE ST., ACCRINGTON, LANCASHIRE ENGLAND, AN ENGLISH COMPANY ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: PLATT SACO LOWELL LIMITED,
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/30—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls
    • D01H4/32—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls using opening rollers

Definitions

  • a sliver feeding device for an open-end spinning machine includes a feed roller, an opening roller. and a displaceable feed pedal biased towards the feed roller.
  • a sliver forming nip is formed between a first surface of the feed pedal and the peripheral surface of the feed roller.
  • the feed pedal also has a second surface adjacent the peripheral surface of the opening roller.
  • the device is provided with constraining means associated with the feed pedal to constrain the feed pedal whereby displacement of the feed pedal produces no substantial variation in the minimum clearance between the first surface and the peripheral surface of the open roller.
  • the present invention generally relates to the manufacture of silver chloride and, more particularly, to improvements in a process for preparing silver chloride from metallic silver by contact with chlorine gas at elevated temperature.
  • Prior Art A conventional method of manufacturing silver chloride involves dissolving silver or silver-containing scrap material in nitric acid and then precipitating silver chloride from the resulting solution by contacting the solution with sodium chloride or hydrochloride acid or the like. The thus precipitated silver chloride is then washed and dried. Attempts to manufacture silver chloride by reaction of silver with chlorine gas at room temperature or somewhat elevated temperatures, such as 500F. have been largely unsuccessful due to the lack of reaction or the slowness of the reaction.
  • the present invention satisfies the foregoing needs.
  • the invention comprises improvements in a process for preparing silver chloride from solid silver by contacting elevated temperature with chlorine gas.
  • the improvements of the process are substantially as set forth in the Abstract above. Such improvements permit pure silver chloride powder or granules to be easily provided from molten silver chloride formed as the end product of the process described andv claimed in US. Pat. No. 3,147,073.
  • the highly purified silver chloride in granular or powder form is useful for a variety of purposes including water purification and the like due to the bactericidal properties of the silver chloride.
  • Such silver chloride is also useful in the photochemical industry, for example, in the preparation of photographic emulsions and the like.
  • the improvements permit the patented process to operate on an even more economical basis than heretofore, do not involve complicated steps or machinery and can be carried out rapidly in a simple controlled manner. Other advantages and details of the improvements are as set forth in the following detailed description.
  • the molten silver chloride which exits in the above-described process at a temprature substantially below 1 100F., usually at a temperature of about 900F. is heated in a separate heating zone to at least about 1100F. but below the decomposition point thereof and preferably, to about 1300F. Higher temperatures are not necessary to achieve the desired results and may result in a waste of energy and time due to unnecessary heating. Lower temperatures are insufficient to achieve the desired results.
  • the molten silver chloride After the molten silver chloride has been reheated to the indicated temperature it is then dripped or otherwise passed intoa tank or vessel or reservoir containing water.
  • the water is cooled water, at least initially, and it is desired that the temperature difference between the molten silver chloride contacting the water and the water be at least about l050F.
  • This temperature difference is necessary in order that the drops of molten silver chloride when solidifying in contact with the water do so sufficiently rapidly to cause them to be very brittle.
  • the procedure of the invention forms brittle flakes of the silver chloride which may vary in size but may be, for example, up to about one-half or so along the major axis thereof and irregularly thin.
  • the flakes are then disintegrated in a hammer mill or other similar disintegrating device. It is preferred that the disintegration be carried out while the flakes are in dry form. Accordingly, the flakes may be removed from the water in which the flakes were formed, dried by conventional means such as heating, air blowing and/or the like and then passed to the disintegrating means for reduction to the desired particle size.
  • a typical product has been produced which has a silver chloride content of 99.5% and which can be readily milled to an average particle size such that 100 percent of the particles readily pass through a 60 mesh screen. The brittleness of the flakes assures that the milling operation is very readily carried out. Further aspects of the present invention will be apparent from the following specific Examples.
  • EXAMPLE I A silver ingot weighing 100 pounds is placed in a closed reaction chamber fitted with external heating means, a gas inlet and outlet above the silver and a bottom liquid drainage outlet.
  • the reaction chamber is heated to a temperature of about 1300F. whereupon chlorine gas slightly above atmospheric temperature is introduced into the reaction chamber through the gas inlet, circulates over the top surface of the silver and exits the chamber through the gas outlet.
  • the amount of chlorine gas is regulated to be in excess of that utilized in the reaction with the silver.
  • the reaction is carried out for a period of about 100 minutes during which time molten silver chloride is formed on the top surface of the silver, drains from the solid silver, collects in the bottom of the chamber and is removed from the bottom liquid outlet.
  • the molten silver chloride at this point has a temperature of approximately 900F. and is caused to flow to a separate heating zone in the form of a furnace and is heated therein to a temperature of about 1200F. and at about that temperature is dripped from the furnace into water in a tank, the water having an average temperature of about 50F.
  • the water greatly exceeds the silver chloride in volume and is maintained within the temperature range of about 40F. to about 60F. by inflow of fresh cooled water.
  • Brittle flakes of silver chloride are recovered from the bottom of the tank of water, dried by heating and air blowing and then passed into a hammer mill and therein granulated to about 60 mesh screen size.
  • the energy computed to be utilized in granulating this silver chloride is less than about percent that required to granulate silver chloride prepared by the same process except for first casting the silver chloride into molds solidifying and then breaking into small pieces and hammer milling. Accordingly, the present process and its improvements represent a substantial advance in the art.
  • a process for preparing silver chloride comprising heating metallic silver to above the melting point of silver chloride but below the melting point of said silver in a reaction zone, introducting chlorine gas above said heated silver, withdrawing resulting molten silver chloride from said reaction zone below said heated silver and, therefore, recovering solid silver chloride, the improvement which comprises effecting said recovery by heating said withdrawn silver chloride to at least about 1100" F. but below the decomposition point thereof and then passing said heated silver chloride in finely dispersed liquid form into water at a temperature of at least about 1050F higher than said water, sepa rating the resulting brittle silver chloride flakes from said water and disintegrating said flakes to granular form.
  • said silver is essentially pure silver bullion, wherein said chlorine gas curvature coincides with the rotational axis of the opening roller
  • the constraining means further including a fixed guide means slidably engaging in the channel or slot and serving to position and locate the feed pedal whereby on displacement of the feed pedal, cooperation between the guide means and the channel or slot constrains the feed pedal to move in an arcuate path which is concentric with the surface of the opening roller.
  • a device as claimed in claim 4 wherein the guide means comprise a pair of spaced fixed pegs which are 4 a sliding fit in the channel or slot.
  • guide means comprises a fixed elongate arcuate spigot which is a sliding fit in the slot or recess.
  • a device as claimed in claim 1 wherein the feed pedal includes upper and lower parts formed integrally, the said first surface being provided on the upper part and the said second surface being provided on the lower part.
  • the said second surface comprises a planar surface extending from the feed roller towards and over the periphery of the opening roller, the planar surface lying parallel with a tangent to the peripheral surface of the opening roller and wherein the constraining means constrains the feed pedal to move toward and away from the feed roller in a path parallel to the said tangent.
  • a device as claimed in claim 8 wherein the constraining means includes a sliding surface parallel with said planar surface and arranged to slide along a fixed planar guide surface which is also parallel with the said planar surface.
  • constraining means further includes a fixed spigot which slidably engages in a blind bore in the feed pedal thereby serving to support and position the feed pedal.
  • a device as claimedin claim 1 including a housing for the device, and wherein the said first surface defines with a surface of the housing a sliver feed channel which gradually converges towards the sliver forwarding nip.
  • the feed pedal includes upper and lower parts formed integrally, the said first surface being provided on the upper part and the said second surface being provided on said lower part, wherein the spring is a helical spring having one end engaging in a recess in the upper portion of the feed pedal, and having the other end engaging a fixed abutment.
  • a device as claimed in claim 13 including a fixed spigot which slideably engages in a blind bore in the feed pedal, thereby serving to support the feed pedal, wherein the spring is a helical spring located in the blind bore of the feed pedal, and having one end engaging an end wall of the bore and the other end engaging the fixed spigot.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Preliminary Treatment Of Fibers (AREA)
US00340082A 1972-03-13 1973-03-12 Open-end textile spinning machines Expired - Lifetime US3828539A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1152672A GB1368886A (en) 1972-03-13 1972-03-13 Open-end textile spinning machines

Publications (1)

Publication Number Publication Date
US3828539A true US3828539A (en) 1974-08-13

Family

ID=9987866

Family Applications (1)

Application Number Title Priority Date Filing Date
US00340082A Expired - Lifetime US3828539A (en) 1972-03-13 1973-03-12 Open-end textile spinning machines

Country Status (9)

Country Link
US (1) US3828539A (de)
JP (1) JPS5335166B2 (de)
CH (1) CH564614A5 (de)
DE (1) DE2312169B2 (de)
ES (1) ES412554A1 (de)
FR (1) FR2175971B1 (de)
GB (1) GB1368886A (de)
IN (1) IN139233B (de)
IT (1) IT979813B (de)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3894386A (en) * 1974-06-06 1975-07-15 Alexandr Alexeevi Sharychenkov Arrangement for feeding fibres into the twister of an open-end spinning frame
US3974635A (en) * 1973-09-03 1976-08-17 Daiwa Boseki Kabushiki Kaisha Feed roller for feeding fibers to a combing roller in an open end spinning machine
US3986327A (en) * 1973-11-05 1976-10-19 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Separation of dirt from fibers in spinning machine
US4008562A (en) * 1974-06-18 1977-02-22 Vyzkumny Ustav Bavlnarsky Apparatus for supplying a staple fiber formation to a fiber separating device of an open-end spinning unit
US4024699A (en) * 1974-10-11 1977-05-24 Schubert & Salzer Maschinenfabrik Aktiengesellschaft Sliver resolving apparatus for open-end spinning machines
US4035871A (en) * 1974-08-22 1977-07-19 Fritz Stahlecker Opening and cleaning apparatus for an open end spinning unit
US4058965A (en) * 1974-07-03 1977-11-22 Platt Saco Lowell Limited Open-end spinning machines
US4109453A (en) * 1976-04-26 1978-08-29 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Fiber separating device of an open-end spinning apparatus
US4254612A (en) * 1978-10-13 1981-03-10 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Device for preventing the accumulation of fibers in an open-end spinning frame
US4459801A (en) * 1981-07-11 1984-07-17 Fritz Stahlecker Feeding and opening device for open-end spinning units with a separation opening for impurities
US4815269A (en) * 1987-03-20 1989-03-28 W. Schlafhorst & Co. Silver opening and feeding device for an open-end spinning device

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2448584C3 (de) * 1974-10-11 1984-10-25 Schubert & Salzer Maschinenfabrik Ag, 8070 Ingolstadt Auflöseeinrichtung für eine Offen-End-Spinnvorrichtung
DE2548434C2 (de) * 1975-10-29 1985-08-01 Fritz 7347 Bad Überkingen Stahlecker Zuführeinrichtung für ein Offenend-Spinnaggregat
GB2042599B (en) * 1978-10-26 1983-09-21 Platt Saco Lowell Ltd Open-end spinning apparatus
JPS5587341U (de) * 1978-12-12 1980-06-16
JPS6078842U (ja) * 1983-11-07 1985-06-01 成瀬　泉 芥取用逆巻粘着テ−プ
DE19504607A1 (de) * 1995-02-11 1996-08-14 Schlafhorst & Co W Faserbandzuführvorrichtung für OE-Spinnmaschinen
CN108888411B (zh) * 2018-08-14 2023-04-25 江西省美满生活用品有限公司 一种便于固定的纸尿裤生产用吸水棉蓬松装置

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3360918A (en) * 1966-03-04 1968-01-02 Vyzk Ustav Bavlnarsky Arrangement for guiding staple fibers into a separator of a ringless spinning machine
US3455097A (en) * 1967-06-01 1969-07-15 Vyrkumny Ustav Bavlnarsky Apparatus for spinning of fibrous material
US3511045A (en) * 1968-01-22 1970-05-12 Elitex Zavody Textilniho Spinning apparatus having a servicing position
US3571859A (en) * 1968-04-16 1971-03-23 Vyzk Ustav Barlnarsky Fiber-processing apparatus
US3680300A (en) * 1969-12-03 1972-08-01 Schubert & Salzer Maschinen Process and apparatus for fiber band spinning
US3695022A (en) * 1969-11-13 1972-10-03 Schubert & Salzer Maschinen Method and apparatus for the interruption of silver supply in open end spinning machines
US3696604A (en) * 1970-05-12 1972-10-10 Toyoda Chuo Kenkyusho Kk Centrifugal spinning device
US3728853A (en) * 1970-07-23 1973-04-24 Rieter Ag Maschf Method and apparatus for interrupting the supply of fiber material to a spinning machine

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3360918A (en) * 1966-03-04 1968-01-02 Vyzk Ustav Bavlnarsky Arrangement for guiding staple fibers into a separator of a ringless spinning machine
US3455097A (en) * 1967-06-01 1969-07-15 Vyrkumny Ustav Bavlnarsky Apparatus for spinning of fibrous material
US3511045A (en) * 1968-01-22 1970-05-12 Elitex Zavody Textilniho Spinning apparatus having a servicing position
US3571859A (en) * 1968-04-16 1971-03-23 Vyzk Ustav Barlnarsky Fiber-processing apparatus
US3695022A (en) * 1969-11-13 1972-10-03 Schubert & Salzer Maschinen Method and apparatus for the interruption of silver supply in open end spinning machines
US3680300A (en) * 1969-12-03 1972-08-01 Schubert & Salzer Maschinen Process and apparatus for fiber band spinning
US3696604A (en) * 1970-05-12 1972-10-10 Toyoda Chuo Kenkyusho Kk Centrifugal spinning device
US3728853A (en) * 1970-07-23 1973-04-24 Rieter Ag Maschf Method and apparatus for interrupting the supply of fiber material to a spinning machine

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3974635A (en) * 1973-09-03 1976-08-17 Daiwa Boseki Kabushiki Kaisha Feed roller for feeding fibers to a combing roller in an open end spinning machine
US3986327A (en) * 1973-11-05 1976-10-19 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Separation of dirt from fibers in spinning machine
US3894386A (en) * 1974-06-06 1975-07-15 Alexandr Alexeevi Sharychenkov Arrangement for feeding fibres into the twister of an open-end spinning frame
US4008562A (en) * 1974-06-18 1977-02-22 Vyzkumny Ustav Bavlnarsky Apparatus for supplying a staple fiber formation to a fiber separating device of an open-end spinning unit
US4058965A (en) * 1974-07-03 1977-11-22 Platt Saco Lowell Limited Open-end spinning machines
US4035871A (en) * 1974-08-22 1977-07-19 Fritz Stahlecker Opening and cleaning apparatus for an open end spinning unit
US4024699A (en) * 1974-10-11 1977-05-24 Schubert & Salzer Maschinenfabrik Aktiengesellschaft Sliver resolving apparatus for open-end spinning machines
US4109453A (en) * 1976-04-26 1978-08-29 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Fiber separating device of an open-end spinning apparatus
US4254612A (en) * 1978-10-13 1981-03-10 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Device for preventing the accumulation of fibers in an open-end spinning frame
US4459801A (en) * 1981-07-11 1984-07-17 Fritz Stahlecker Feeding and opening device for open-end spinning units with a separation opening for impurities
US4815269A (en) * 1987-03-20 1989-03-28 W. Schlafhorst & Co. Silver opening and feeding device for an open-end spinning device

Also Published As

Publication number Publication date
JPS5335166B2 (de) 1978-09-26
IN139233B (de) 1976-05-22
IT979813B (it) 1974-09-30
CH564614A5 (de) 1975-07-31
ES412554A1 (es) 1976-01-01
FR2175971B1 (de) 1976-04-30
FR2175971A1 (de) 1973-10-26
DE2312169B2 (de) 1979-09-20
DE2312169A1 (de) 1973-09-20
JPS491830A (de) 1974-01-09
GB1368886A (en) 1974-10-02

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Legal Events

Date Code Title Description
AS Assignment

Owner name: HOLLINGSWORTH (UK) LIMITED, SCAITCLIFFE ST., ACCRI

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:PLATT SACO LOWELL LIMITED,;REEL/FRAME:004198/0296

Effective date: 19830801