US2516199A - Heating means - Google Patents

Heating means Download PDF

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Publication number
US2516199A
US2516199A US41271A US4127148A US2516199A US 2516199 A US2516199 A US 2516199A US 41271 A US41271 A US 41271A US 4127148 A US4127148 A US 4127148A US 2516199 A US2516199 A US 2516199A
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United States
Prior art keywords
drum
shaft
oil
heating
drums
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
US41271A
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English (en)
Inventor
Jr Horace P Fry
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.)
Akzo Nobel UK PLC
Original Assignee
American Viscose 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
Priority to IT454566D priority Critical patent/IT454566A/it
Application filed by American Viscose Corp filed Critical American Viscose Corp
Priority to US41271A priority patent/US2516199A/en
Application granted granted Critical
Publication of US2516199A publication Critical patent/US2516199A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
    • F26B13/001—Drying and oxidising yarns, ribbons or the like

Definitions

  • HEATING MEANS Filed July 29, 1948 Patented July 25, 1950 HEATING IVIEANS Horace P. Fry, Jr., Swarthmore, Pa., assignor to American Viscose Corporation, Wilmington, DeL, a corporation of Delaware Application July 29, 1948, Serial No. 41,271
  • This invention is concerned with apparatus for heating running filaments, yarns, strands, films,
  • a common expedient of the prior art is to employ a steam-heated drum or the like over which or' under which the filaments or films pass.
  • the introduction of steam internally of the drum gives rise to corrosion problems and it requires a special rotary joint and two sets of packings, one to control the steam and another to control the oil needed for lubricating the bearings. Similar difiiculties are encountered when hot water is employed in place of steam for internally heating such a drum.
  • a liquid lubricant such as an oil
  • Figure l is an elevation in section of one embodiment of the invention.
  • Figure 2 is a longitudinal section through a modification.
  • FIG 1 there are shown a pair of drums I mounted one above the other on axes which may be parallel or somewhat askew such as from 1 to 3- degrees out of parallel.
  • the axes may be parallel and one or more films may be passed around either of the drums and then about the second of the drums and the heating equipment may comprise a great number of such pairs of drums on parallel axes for providing the desired amount of contact with may be transversely of the plane of the paper in Figure 1.
  • Such a pair of canted drums constitutes a common form of device and carries the filaments. yarns or cords comprising them through a path of generally helical configuration.
  • the drum I may be a cast or forged aluminum shell with a chromium plated outer surface 2 and a finished inner surface 3. At the outer end, insulation 4 is held in place by retaining ring 5. Back plate 6 and the insulating plate 6a are bolted to the drum by screws I with gasket 8 between.
  • the hollow shaft 9 is welded to the back plate 6.
  • a packing nut l2 presses a leather or brass ferrule l3 against the ring l4 which is held by shoulder
  • the door casting I1 is bolted to the steel housing I8, which is the main supporting structure for the pair of drums or for a series of such drying units, by bolts 19 with gasket 20 between.
  • of casting 11 holds a conventional sealing ring 22 and a bearing 23.
  • Below extensions 2! are semicircular catch troughs 25 and 25a, bolted to ca ting H by screws 26 which are sealed with a gasket to prevent leakage to the outside.
  • a driven spiral gear 21 which meshes with driving gear '28 mounted in bearing bracket 29 that is bolted to inside of housing l8.
  • Gear 28 and its counterpart 28a (for driving the lower drum) are so located that the bearing bracket 29 holds both their driving shafts 30 and 30a. thus making one part serve for two.
  • Bearing 31 fixedly secured on shaft 9 restsin a. recessed casting 39, free to move axially thereof as shaft 9 expands upon heating. Sealing ring 40 s pressed into the cup-like extension 39.
  • Ca ting 39 is bolted to housing I8 by screws 43 with a gasket 44 between. Insulation 48 covers all exposed portions of the housing l8.
  • a fitting 48 on one end of tube l5 screws into one end of shaft 9.
  • Supply tubes 58 are fastened to the casting 39 and a three-way cook 52.
  • a nipple 58 connects the cock 52 to supply header 58.
  • Insulation 5! covers the header as shown and all connections may be similarly insulated.
  • the arrows show the direction of flow.
  • the liquid such as a hydrocarbon oil
  • the contact surfaces 62 between the sta-- tionary seals 40 and rotating shaft 9 prevent bypassing of oil from chamber 69 around hollow shaft 9. A slight seepage is desirable for purposes of lubricating the contact surface. It is at this contact surface that the nearest approach to a rotary joint is made.
  • the arrangement is as simplified as possible and slight leakage does no harm.
  • the oil is fed into the drums from the end of tubes i5 and thereby fresh oil is continuously supplied to 360 of the inner surface of the drums as they rotate.
  • the two or more tubes II are made to provide a minimum clearance between the inner surface of a drum and the ends of the tubes. This reduces the skin effect of the oil against the drum to a minimum.
  • the oil leaves the drums through tubes II and enters the hollow annular portion ii of shaft 9. Some of the oil leaves the hollow shafts through one or more holes 68 and enters chambers 61 from which it flows through the bearings 23 which are shown as ball bearings, the balls of which have surfaces contiguous with the surfaces of the outer and inner races relative to which they rotate and between which the oil flows.
  • slots 68 are preferably 45" to 60 below the horizontal but are shown on top for purposes of illustration.
  • the oil passing through holes 68 finds its way into catch troughs 25 and 25a. Trough 25 directs the oil onto driving gear 28.
  • the oil fills trough 25a and the lip of trough 25a maintains an oil level suilicient to contact the teeth of driven gear 21a on the lower shaft 9.
  • housing l8 which forms a receiver the length of the machine and is in turn connected to a pipe 14 that conducts the oil back to a heat exchanger, which is in turn connected to the supply header 52 to which it is fed at a constant rate such as by a pump or a constant head gravity feed.
  • a single internally casing 88 is provided with a cover 83 and seals or packings 84; and 85.
  • seals may be of a plastic material, such as rubber or synthetic rubber, such as neoprene, to resist dissolution in the heating oil or other heating liquid.
  • a discharge conduit 86 is connected to each of the casings 89 and to a common pipe 8! connected to a reservoir or sump 88 for the lubricating liquid.
  • a heating coil 98 may be provided in this reservoir to re-heat the contents to the proper temperature prior to re-circulation through the drum.
  • a pump 89 is connected by its suction pipe 98 to the reservoir 88 and by a pipe 9! to one of the casings 80.
  • the shaft 16 is hollow at both ends. Within the longitudinally extending hollow recess of that end disposed in the casing to which pipe 9
  • the heating liquid is sucked from the reservoir 88 by the pump 99 and forced into the end of one of the casings 89 through the central bore of tube 92, bore 94 and one or more bores 95 into the hollow interior of drum (5.
  • the heating medium heats the peripheral wall of the drum 15 and is discharged through tubes 96. That discharged through the end of the shaft shown at the left in Figure 2 flows through the longitudinal recess 96a of the shaft into one end of .the casing 89 and then through the oil groove 82 to the other end of casing 89 from which it is discharged through the pipe 86 to the reservoir 88.
  • That flowing to the other bearing passes through the annular space between tube 92 and the outer shell of shaft 16 through bores 91 into the space between the seal and bushing 8
  • films that may be handled are paper sheets, cellophane films, woven or knitted fabrics, felts, continuous sheets or ribbons of plastic materials, such as of cellulose derivatives, specifically cellulose acetate or cellulose ethers, or resins, such as virrvl resins and the like.
  • the equipment of Figure l When the equipment of Figure l is employed for the heating or drying of filaments, yarns, cords, or other strands, a number of such articles can be assembled into a single strand and then be passed about a pair of such drums mounted on canted axes 'and the aggregate strand can then be carried about the drums in a helical path.
  • the equipment is useful for heating filaments, yarns, cord and the like of any material whatsoever whether this be of natural or artificial matzrial. For example, yarns and cords of cotton, wool, or silk may be treated on this unit.
  • the equipment is especially advantageous for the drying of artificial filaments produced from viscose, cuprammonium cellulose, cellulose acetate obtained by wet-spinning, wetspun resin filaments or yarns and the like.
  • a single unit may be passed through a helical path on the canted drums; or, if desired, a plurality of units may be passed through a helical path over the drums side by side, i. e., each convolution of the helix will comprise a plurality of unit strands laid side by side.
  • Apparatus for heating running articles of indefinite length comprising a hollow drum, a shaft extending into the interior of the drum, the shaft having a longitudinal hollow portion, bearing means for the shaft, conduit means extending through one end of the shaft and having at least one terminal opening within the drum for introducing a heated liquid into the interior of the drum, conduit means in the drum for leading the liquid from the drum to the hollow portion of the shaft, a transverse passage through the shaft wall adjacent the bearing means and communicating with said hollow portion to conduct liquid from the hollow portion to the bearing means.
  • the bearing means comprises two bearings spaced apart along the shaft, sealing means is provided in the housing for separating the bearings from a region in the housing near that end of the shaft farthest from the drum, and a conduit outside of the housing is connected to said region.
  • Apparatus for heating running articles of indefinite length comprising a hollow drum, a shaft for rotatably supporting the drum having a, hollow portion having two concentric axiallyextending passages, bearing means for the shaft adjacent the hollow portion thereof, a housing enclosing the bearing means and one end of the with said region, a passage through the shaft connecting the outer of the two concentric passages with a zone in the housing between the sealing means and the bearing means, a second conduit connected to the housing on the other side of the bearing means, and passageways through the shaft for providing intercommunication between the drum interior and eachof the concentric passages in the shaft.
  • Apparatus in accordance with claim 1 comprising a supporting housing for enclosing the bearing means, a discharge conduit connected to the bottom of the housing, means in the housing for driving the shaft, and means in the housing for directin liquid discharged from the hearing means to the driving means.
  • Apparatus in accordance with claim 6 comprising at least one pair of said drums mounted on canted shafts supported by the housing.
  • each bearing comprises a lubricant-conveying groove.
  • each bearing comprises spaced rotary anti-friction elements.
  • Apparatus in accordance with claim 1 comprising means for forcing a liquid into the firstmentioned conduit means.
  • Apparatus for heating running articles of indefinite length comprising at least one hollow drum, bearing means for mounting the drum rotatably, said bearing means comprising at least one bearing surface with respect to which a contiguous surface rotates, driving means for rotating the drum, and means for circulating a liquid heating medium through the interior of the drum and between the contiguous surfaces of the bearing means in succession.
  • Apparatus for heating running articles of indefinite length comprising at least one hollow drum, bearing means for mounting the drum rotatably, said bearing means comprising at least one bearing surface with respect to which a contiguous surface rotates, driving means for rotatshaft adjacent the bearing means, sealing means for separating the bearing means in the housing at the end of the shaft, a conduit connected to the housing and communicating from the region ing the drum, and means for circulating a liquid heating medium through the interior of the drum, between the contiguous surfaces of the bearing means, and through the driving means in succession- HORACE P. FiRY, Ja.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rolls And Other Rotary Bodies (AREA)
US41271A 1948-07-29 1948-07-29 Heating means Expired - Lifetime US2516199A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
IT454566D IT454566A (fr) 1948-07-29
US41271A US2516199A (en) 1948-07-29 1948-07-29 Heating means

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2654962A (en) * 1951-03-09 1953-10-13 Ind Rayon Corp Thread processing reel
DE1010264B (de) * 1952-07-01 1957-06-13 Aladar Rabofsky Dipl Ing Elektrische Schalteinrichtung zum Konstanthalten der Oberflaechentemperatur von Kalanderwalzen
US2809392A (en) * 1954-06-15 1957-10-15 Toscony Fabrics Inc Apparatus for embossing thermoplastic film
US2902774A (en) * 1955-12-02 1959-09-08 Hot Oil Heater Company Inc Tempered turbulence roll-type drier
US3807950A (en) * 1971-10-13 1974-04-30 R Rogers Method of dyeing and/or washing fabric
US3887250A (en) * 1970-03-06 1975-06-03 Vepa Ag Godet for use in drawing apparatus and drum dryer units
US5947610A (en) * 1997-11-19 1999-09-07 Danieli Wean Hydrodynamic thrust bearing assembly
DE102005001782A1 (de) * 2005-01-14 2006-07-20 Berstorff Gmbh Vorrichtung zur Kalandrierung von kontinuierlich hergestellten Gegenständen mit mindestens einer Kalanderwalze
US20060242855A1 (en) * 2003-09-11 2006-11-02 Konepaja Kopar Oy Rotating steam drying apparatus

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US971176A (en) * 1910-02-17 1910-09-27 Thomas F Dexter Drying-machine.
US2046553A (en) * 1934-04-20 1936-07-07 Du Pont Cellophane Co Inc Film drying method and apparatus
US2281406A (en) * 1939-09-28 1942-04-28 Ind Rayon Corp Apparatus for treating thread or the like
US2328297A (en) * 1941-04-17 1943-08-31 Ray B Roberts Fish stop

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US971176A (en) * 1910-02-17 1910-09-27 Thomas F Dexter Drying-machine.
US2046553A (en) * 1934-04-20 1936-07-07 Du Pont Cellophane Co Inc Film drying method and apparatus
US2281406A (en) * 1939-09-28 1942-04-28 Ind Rayon Corp Apparatus for treating thread or the like
US2328297A (en) * 1941-04-17 1943-08-31 Ray B Roberts Fish stop

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2654962A (en) * 1951-03-09 1953-10-13 Ind Rayon Corp Thread processing reel
DE1010264B (de) * 1952-07-01 1957-06-13 Aladar Rabofsky Dipl Ing Elektrische Schalteinrichtung zum Konstanthalten der Oberflaechentemperatur von Kalanderwalzen
US2809392A (en) * 1954-06-15 1957-10-15 Toscony Fabrics Inc Apparatus for embossing thermoplastic film
US2902774A (en) * 1955-12-02 1959-09-08 Hot Oil Heater Company Inc Tempered turbulence roll-type drier
US3887250A (en) * 1970-03-06 1975-06-03 Vepa Ag Godet for use in drawing apparatus and drum dryer units
US3807950A (en) * 1971-10-13 1974-04-30 R Rogers Method of dyeing and/or washing fabric
US5947610A (en) * 1997-11-19 1999-09-07 Danieli Wean Hydrodynamic thrust bearing assembly
US20060242855A1 (en) * 2003-09-11 2006-11-02 Konepaja Kopar Oy Rotating steam drying apparatus
DE102005001782A1 (de) * 2005-01-14 2006-07-20 Berstorff Gmbh Vorrichtung zur Kalandrierung von kontinuierlich hergestellten Gegenständen mit mindestens einer Kalanderwalze

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Publication number Publication date
IT454566A (fr)

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