JPS648276B2 - - Google Patents

Info

Publication number
JPS648276B2
JPS648276B2 JP15001980A JP15001980A JPS648276B2 JP S648276 B2 JPS648276 B2 JP S648276B2 JP 15001980 A JP15001980 A JP 15001980A JP 15001980 A JP15001980 A JP 15001980A JP S648276 B2 JPS648276 B2 JP S648276B2
Authority
JP
Japan
Prior art keywords
board
plate
scraping
opening
shingle
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
JP15001980A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5682377A (en
Inventor
Pirure Rooberu
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.)
SANTORU DO RUSHERUSHU METARYURUJIIKU
Original Assignee
SANTORU DO RUSHERUSHU METARYURUJIIKU
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 claimed from BE6046979A external-priority patent/BE879644A/fr
Application filed by SANTORU DO RUSHERUSHU METARYURUJIIKU filed Critical SANTORU DO RUSHERUSHU METARYURUJIIKU
Publication of JPS5682377A publication Critical patent/JPS5682377A/ja
Publication of JPS648276B2 publication Critical patent/JPS648276B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/0006—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means to keep optical surfaces clean, e.g. by preventing or removing dirt, stains, contamination, condensation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D21/00—Arrangement of monitoring devices; Arrangement of safety devices
    • F27D21/02—Observation or illuminating devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D25/00—Devices or methods for removing incrustations, e.g. slag, metal deposits, dust; Devices or methods for preventing the adherence of slag
    • F27D25/001—Devices or methods for removing incrustations, e.g. slag, metal deposits, dust; Devices or methods for preventing the adherence of slag comprising breaking tools, e.g. hammers, drills, scrapers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Blast Furnaces (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Radiation Pyrometers (AREA)
JP15001980A 1979-10-25 1980-10-24 Improvement of device for monitoring inside of shroud Granted JPS5682377A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE6046979A BE879644A (fr) 1979-10-25 1979-10-25 Perfectionnements aux dispositif pour surveiller l'interieur d'une enceinte

Publications (2)

Publication Number Publication Date
JPS5682377A JPS5682377A (en) 1981-07-06
JPS648276B2 true JPS648276B2 (OSRAM) 1989-02-13

Family

ID=3874836

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15001980A Granted JPS5682377A (en) 1979-10-25 1980-10-24 Improvement of device for monitoring inside of shroud

Country Status (2)

Country Link
JP (1) JPS5682377A (OSRAM)
DE (1) DE3040127A1 (OSRAM)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0643679Y2 (ja) * 1988-03-16 1994-11-14 川崎重工業株式会社 密閉容器の覗き窓

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT177529B (de) * 1952-09-08 1954-02-10 Alois Dr Vogt Verfahren und Vorrichtung zur Reinigung von Beobachtungsfenstern, die dem Einblick in Hochvakuumräume dienen
LU52435A1 (OSRAM) * 1966-11-24 1968-06-25
DE2628781C2 (de) * 1975-07-01 1983-10-20 Centre de Recherches Métallurgiques-Centrum voor Research in de Metallurgie-Association sans but lucratif-Vereniging zonder winstoogmerk, Bruxelles Vorrichtung zur Beobachtung des Innern eines geschlossenen Raumes, insbesondere eines Hochofens

Also Published As

Publication number Publication date
JPS5682377A (en) 1981-07-06
DE3040127A1 (de) 1981-05-07

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