US2783550A - Drying roll - Google Patents
Drying roll Download PDFInfo
- Publication number
- US2783550A US2783550A US487832A US48783255A US2783550A US 2783550 A US2783550 A US 2783550A US 487832 A US487832 A US 487832A US 48783255 A US48783255 A US 48783255A US 2783550 A US2783550 A US 2783550A
- Authority
- US
- United States
- Prior art keywords
- drum
- drying
- feed pipe
- roll
- pontoons
- 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
Links
Images
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
- F26B13/10—Arrangements for feeding, heating or supporting materials; Controlling movement, tension or position of materials
- F26B13/14—Rollers, drums, cylinders; Arrangement of drives, supports, bearings, cleaning
- F26B13/18—Rollers, drums, cylinders; Arrangement of drives, supports, bearings, cleaning heated or cooled, e.g. from inside, the material being dried on the outside surface by conduction
- F26B13/183—Arrangements for heating, cooling, condensate removal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D7/00—Producing flat articles, e.g. films or 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
- B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
Definitions
- the present invention relates to a drying roll which may be used for drying continuously traveling sheets or" flexible material such as cellophane.
- the invention relates to a drying roll which, when heated to a drying temperature, maintains a temperature differential between the end and central surface portions of the roll.
- the temperature differential may be adjusted as desired.
- Another object of my invention is to provide a drying roll wherein a temperature differential is maintained between the end and central portions of the roll surface.
- Still another object of my invention is to provide a drying drum wherein the maximum heat exchange between the drum surface and the heating medium intro- 2,783,550 Patented Mar. 5, 1957 cuted within the drum interior is substantially confined to the central portion of the drum.
- FIG. 1 is a longitudinal section of the drying roll showing the internalmake-up of the roll; and a Figure 2 is a cross section of the roll taken along line II-II of Figure 1.
- a stationary heating medium feed pipe or conduit extends through one'of the end supports into the drum interior and .is journaledwithin the opposite end support.
- Suitable outlets such as spray nozzles leading off from the feed pipe deliver the drying medium to the central portion only of the innersurface of the drum shell and drum interior.
- Flow restricting pontoons are supported by and lie below the feed pipe adjacent the end portions of the drum interior whereby circulation of the heating medium is somewhat restricted in the end sections of the drum.
- the drying roll A is shown with a sheet of paper such as cellophane or other flexible sheet material b passing thereover.
- the roll A comprises a hollow metal drum 1 having end supports 2 and 3 for journaling the drum in a suitable vertical frame support (not shown).
- a heating medium feed pipe 4 for conducting steam or other heating medium under pressure to the interior of the drum 1 extends through end support 2 and is journaled in the opposite end support 3.
- the pipe 4 is stationary and does not rotate with the drum 1.
- a series of spray nozzles 8, 8 extend from the feed pipe 4 to conduct the drying medium from the pipe to the inner surface of the drum shell and to the drum interior. The nozzles 8, 8 break up the drying medium passing therethrough into a fine spray and impel the spray directly against the inner surface of the drum 1.
- the nozzle 8, 8 are so positioned that they direct the spray of drying medium on the central portions of the inner drum surface only, there being no nozzles positioned under the end portions of the inner surface of the drum.
- the temperature along the central portion of the inner drum surface and drum interior will be higher than along the end portions of the drum surface and interior.
- the positioning of the nozzles 8, Salong the pipe 4 whereby they cooperate with the inner surface of the drum to spray the heating medium on only the central portions of the drum 1 constitute an important feature of my invention.
- liquid displacing or flow restricting members such as pontoons 9, 9, another important feature of my invention, are afiix-ed by clamps 10, 10 to the feed pipe 4 so that they lie below the feed pipe and adjacent the ends of the drum A.
- the pontoons are made of light weight metal, the joints of which are sealed to prevent drying medium from passing thereinto.
- the pontoons 9, 9 become submerged within the condensed drying medium as the condensed drying medium level builds up within the drum thereby displacing a quantity of the medium at each end of the drum to decrease the amount of space in theend portions of the drum interior occupied by the heating medium.
- the pontoons 9, 9 also restrict the flow of the condensed drying medium between the central and end sections of the roll A thereby decreasing the rate of heat exchange between the warmer medium in the center of the drum and the medium of lower temperature in the end sections of the drum.
- the position of the pontoons 9, 9 along feed pipe 4 may be adjusted or varied as desired merely byloosening the clamps and sliding the'pontoons lengthwise of the pipe whereby different temperature differentials may be set up within the drying roll A.
- Gaskets 12, 12 ofmetal or other suitable material are affixed to the ends of the pontoons 9, '9 facing central portion of the drum A.
- the gaskets 12, 12 extend downwardly from the pontoons 9, 9 to form a loose fit with the inner surface of the drum 1.
- a small clearance remains between the gasket and the inner wall of the drum 1.
- the purpose of the gaskets12,'12 is to further restrict the how of the condensed medium from the central to the end portions of the drum thus further decreasing the heat exchange rate therebetween to further effect a temperature differential between the end and central sections of the drum.
- the condensed drying medium is discharged from the drum interior through passageway 15 formed by the bore of end support 2 and feed pipe 4 which extends through the bore.
- the end surface portions of the drum will be of a suflicient temperature, although of a lower temperature than the central surface portions of the drum, to properly dry the edge portions of the sheet traveling over the drum since heat transfer occurs to a certain degree between the central surface portions of the drum and the end surface portions thereof.
- some heat transfer is, of course, effected by the heating'mediuin present in the ends of the drum and the end surface portions of the drum.
- a dryingroll for uniformly drying a continuous sheet of flexible material comprising a drum, end sup ports for the drum, a heating medium supply conduit extending through one end support, at least one outlet nozzle leading off from the supply conduit for directing the heating medium against the central section of the inner surface of the drum, and means affixed to at least one end of the supply conduit for substantially decreasing the area at one end of the drum interior which may be occupied by the heating medium.
- a drying roll for uniformly drying a continuous sheet of cellophane comprising a drum, end supports for the drum, a drying medium feed pipe extending through one end support and journaled in the opposite end support, a plurality of spray nozzles leading from the feed pipe for directing the drying medium in spray form against the central section of the inner surface of the drum, and pontoons loosely affixed to the feed pipe, said pontoons lying adjacent the drum ends and below the feed pipe.
- a drying roll for uniformly drying a continuous sheet of flexible material comprising a drum, end supports for the drum, a feed pipe extending through one end support and journaled in the opposite end support, spray nozzles leading from the feed pipe for directing the drying medium against the central section of the inner surface of the drum, pontoons secured to the feed pipe, said pontoons lying below the feed pipe and adjacent the end sections of the drum, and flow restricting members affixed to the pontoon which members extend downwardly to a position adjacent the inner surface of the drum to leave a slight clearance between the drum inner surface and the flow restricting member.
- a drying roll for uniformly drying a continuous sheet of cellophane comprising a drum, end supports for the drum, a drying medium feed pipe extending through one end support and journaled in the opposite end support, a plurality of spray nozzles atiixed to the feed pipe for directing the drying medium in spray form against the central section only of the inner surface of the drum,
- pontoons affixed to the feed pipe, said pontoons lying adjacent the drum end portions and below the feed pipe, gaskets aflixed to the sides of the pontoons facing the center of the drum, said gaskets extending downwardly to a position adjacent the inner surface of the drum to leave a slight clearance between the drum inner surface and the gaskets, and means for discharging drying medium from the drum interior.
- a drying roll for uniformly drying a continuous sheet of flexible material comprising a drum, end supports for the drum, a drying medium feed pipe extending through one end support and journaled in the opposite end support, a plurality of spray nozzles leading from the feed pipe for directing the drying medium in spray form against the central section of the inner surface of the drum, pontoons adjustably positioned on the feed pipe, said pontoons lying below the feed pipe and adjacent the ends of the drum, clamps afiixed to the upper surface of the pontoons for securing the pontoons to the feed pipe, means for discharging drying medium from the drum interior, and gaskets afiixed to the sides of the pontoons facing the center of the drum interior, said gaskets extending downwardly to a position adjacent the inner surface of the drum to leave a slight clearance between the drum inner surface and the gaskets.
Description
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US487832A US2783550A (en) | 1955-02-14 | 1955-02-14 | Drying roll |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US487832A US2783550A (en) | 1955-02-14 | 1955-02-14 | Drying roll |
Publications (1)
Publication Number | Publication Date |
---|---|
US2783550A true US2783550A (en) | 1957-03-05 |
Family
ID=23937284
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US487832A Expired - Lifetime US2783550A (en) | 1955-02-14 | 1955-02-14 | Drying roll |
Country Status (1)
Country | Link |
---|---|
US (1) | US2783550A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3065552A (en) * | 1960-03-03 | 1962-11-27 | Beloit Iron Works | Paper machine dryer drum |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1594718A (en) * | 1925-05-20 | 1926-08-03 | William B Fulton | Paper drier and the like |
US1670113A (en) * | 1927-04-14 | 1928-05-15 | Harrison Albert Dex | Paper-drying machine |
US2316212A (en) * | 1941-12-13 | 1943-04-13 | Du Pont | Regenerated cellulose apparatus |
-
1955
- 1955-02-14 US US487832A patent/US2783550A/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1594718A (en) * | 1925-05-20 | 1926-08-03 | William B Fulton | Paper drier and the like |
US1670113A (en) * | 1927-04-14 | 1928-05-15 | Harrison Albert Dex | Paper-drying machine |
US2316212A (en) * | 1941-12-13 | 1943-04-13 | Du Pont | Regenerated cellulose apparatus |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3065552A (en) * | 1960-03-03 | 1962-11-27 | Beloit Iron Works | Paper machine dryer drum |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3874997A (en) | Multiple cylinder drier in a paper machine | |
US4986009A (en) | Process for drying a material web and device for the application of the process | |
US3807056A (en) | Device for the contact-free support of a web of material | |
GB1340360A (en) | Web stabilizer | |
USRE25358E (en) | Process of and apparatus for papermaking | |
US2864176A (en) | Web-guiding apparatus | |
KR830003710A (en) | Pneumatic Dryer | |
US3019130A (en) | Fluid cushioned coating method and apparatus | |
GB1463838A (en) | Apparatus and method for sterilizing webs of packaging material | |
US2956348A (en) | Drying roll | |
US2081945A (en) | Means and method of drying coated flexible webs | |
US2054391A (en) | Multiple cylinder web drier | |
US1470953A (en) | Paper-making machine | |
US1970180A (en) | Paper making machine | |
US2783550A (en) | Drying roll | |
US2099162A (en) | Process and apparatus for drying | |
US3242583A (en) | Method of drying a running web of sheet material | |
US2902774A (en) | Tempered turbulence roll-type drier | |
US2443443A (en) | Apparatus for producing films | |
US2691225A (en) | Web treating apparatus | |
US2354033A (en) | Method and apparatus for coating sheet material | |
US1658485A (en) | Paper-waxing apparatus | |
FI120773B (en) | dryer | |
US2616188A (en) | Web drying apparatus | |
US2046553A (en) | Film drying method and apparatus |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: KELLOGG CREDIT CORPORATION A DE CORP. Free format text: AGREEMENT WHEREBY SAID HELLER AND RAYONIER RELEASES ALL MORTGAGES AND SECURITY INTERESTS HELD BY AVTEX ON APRIL 28, 1978, AND JAN. 11, 1979, RESPECTIVELY AND ASSIGNS ITS ENTIRE INTEREST IN SAID MORT-AGAGE AGREEMENT TO ASSIGNEE;ASSIGNORS:WALTER E. HELLER & COMPANY, INC. A NY CORP.;ITT RAYONIER INCORPORATED, A DE CORP.;AVTEX FIBERS INC., A NY CORP.;REEL/FRAME:003959/0350 Effective date: 19800326 Owner name: WALTER E. HELLER & COMPANY, INC., A CORP. OF DEL. Free format text: AGREEMENT WHEREBY AETNA RELEASES AVTEX FROM ALL MORTAGES AND SECURITY INTERESTS IN SAID INVENTIONS AS OF JANUARY 11,1979, AND ASSIGNS TO ASSIGNEE THE ENTIRE INTEREST IN SAID MORTAGE AGREEMENT TO ASSIGNEE;ASSIGNORS:AETNA BUSINESS CREDIT, INC., A CORP. OF N.Y.;AVTEX FIBERS, INC, A CORP. OF NY;KELLOGG CREDIT CORP., A CORP. OF DEL.;REEL/FRAME:003959/0250 Effective date: 19800326 Owner name: JOHN HANCOCK MUTUAL LIFE INSURANCE COMPANY JOHN HA Free format text: AS SECURITY FOR INDEBTEDNESS RECITED ASSIGNOR GRANTS , BARGAINS, MORTGAGES, PLEDGES, SELLS AND CREATES A SECURITY INTEREST WITH A LIEN UNDER SAID PATENTS, SUBJECT TO CONDITIONS RECITED.;ASSIGNOR:AVTEX FIBERS INC. A NY CORP.;REEL/FRAME:003959/0219 Effective date: 19810301 Owner name: BALBOA INSURANCE COMPANY C/O THE PAUL REVERE EQUIT Free format text: AS SECURITY FOR INDEBTEDNESS RECITED ASSIGNOR GRANTS , BARGAINS, MORTGAGES, PLEDGES, SELLS AND CREATES A SECURITY INTEREST WITH A LIEN UNDER SAID PATENTS, SUBJECT TO CONDITIONS RECITED.;ASSIGNOR:AVTEX FIBERS INC. A NY CORP.;REEL/FRAME:003959/0219 Effective date: 19810301 Owner name: PAUL REVERE LIFE INSURANCE COMPANY THE C/O THE PAU Free format text: AS SECURITY FOR INDEBTEDNESS RECITED ASSIGNOR GRANTS , BARGAINS, MORTGAGES, PLEDGES, SELLS AND CREATES A SECURITY INTEREST WITH A LIEN UNDER SAID PATENTS, SUBJECT TO CONDITIONS RECITED.;ASSIGNOR:AVTEX FIBERS INC. A NY CORP.;REEL/FRAME:003959/0219 Effective date: 19810301 Owner name: WESTERN AND SOUTHERN LIFE INSURANCE COMPANY THE C/ Free format text: AS SECURITY FOR INDEBTEDNESS RECITED ASSIGNOR GRANTS , BARGAINS, MORTGAGES, PLEDGES, SELLS AND CREATES A SECURITY INTEREST WITH A LIEN UNDER SAID PATENTS, SUBJECT TO CONDITIONS RECITED.;ASSIGNOR:AVTEX FIBERS INC. A NY CORP.;REEL/FRAME:003959/0219 Effective date: 19810301 Owner name: PROVIDENT ALLIANCE LIFE INSURANCE COMPANY C/O THE Free format text: AS SECURITY FOR INDEBTEDNESS RECITED ASSIGNOR GRANTS , BARGAINS, MORTGAGES, PLEDGES, SELLS AND CREATES A SECURITY INTEREST WITH A LIEN UNDER SAID PATENTS, SUBJECT TO CONDITIONS RECITED.;ASSIGNOR:AVTEX FIBERS INC. A NY CORP.;REEL/FRAME:003959/0219 Effective date: 19810301 Owner name: NEW ENGLAND MUTUAL LIFE INSURANCE COMPANY 501 BOYL Free format text: AS SECURITY FOR INDEBTEDNESS RECITED ASSIGNOR GRANTS , BARGAINS, MORTGAGES, PLEDGES, SELLS AND CREATES A SECURITY INTEREST WITH A LIEN UNDER SAID PATENTS, SUBJECT TO CONDITIONS RECITED.;ASSIGNOR:AVTEX FIBERS INC. A NY CORP.;REEL/FRAME:003959/0219 Effective date: 19810301 |