GB527660A - Improvements in drying webs - Google Patents

Improvements in drying webs

Info

Publication number
GB527660A
GB527660A GB1169339A GB1169339A GB527660A GB 527660 A GB527660 A GB 527660A GB 1169339 A GB1169339 A GB 1169339A GB 1169339 A GB1169339 A GB 1169339A GB 527660 A GB527660 A GB 527660A
Authority
GB
United Kingdom
Prior art keywords
air
paper
passage
fan
exhaust passages
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
Application number
GB1169339A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1169339A priority Critical patent/GB527660A/en
Publication of GB527660A publication Critical patent/GB527660A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
    • B41F23/0403—Drying webs
    • B41F23/0423—Drying webs by convection
    • B41F23/0426—Drying webs by convection using heated air

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

527,660. Drying webs. OFFEN, B. April 18, 1939, No. 11693. [Class 34 (i)] Webs particularly of printed paper are dried by passage over rollers 20 and under a hood in which air is blown from channels 16a, 16b through inwardly directed nozzles 22a, 22b on to the paper and air is withdrawn through a central exhaust passage 11, 13 in close proximity to the paper, whence the air passes to atmosphere or to a solvent recovery plant; air having a lower solvent vapour content is withdrawn through separate side exhaust passages 12, 14, whence it is recirculated by a fan 25 to the paper with fresh air entering by an aperture 29 with adjustable baffles. A fan 25a exhausts air from the passage 13, to a chamber 15 and outlet 16. The air supply hoods 16a, 16b separated by the passage 13 are tapered from the fan across the chamber and may be longitudinally subdivided by partitions 37 into compartments each with a heater 33a so that air of different temperatures is projected on different parts of the paper. The separate exhaust passages may be connected by a slidable plate 28. Baffles 32 adjust the amount of air returned to circulation and when closed, only fresh air is projected on the paper. Fine mesh wire screens may protect the nozzles from flames from the web. Partitions 14a form the exhaust passages 14 into triangles. Specification 477,684 is referred to.
GB1169339A 1939-04-18 1939-04-18 Improvements in drying webs Expired GB527660A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1169339A GB527660A (en) 1939-04-18 1939-04-18 Improvements in drying webs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1169339A GB527660A (en) 1939-04-18 1939-04-18 Improvements in drying webs

Publications (1)

Publication Number Publication Date
GB527660A true GB527660A (en) 1940-10-14

Family

ID=9990969

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1169339A Expired GB527660A (en) 1939-04-18 1939-04-18 Improvements in drying webs

Country Status (1)

Country Link
GB (1) GB527660A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2247738A (en) * 1990-08-17 1992-03-11 Monforts Gmbh & Co A Exhausting drying or heat treating gas

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2247738A (en) * 1990-08-17 1992-03-11 Monforts Gmbh & Co A Exhausting drying or heat treating gas

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