BR8106422A - Laminado resistente ao fogo - Google Patents

Laminado resistente ao fogo

Info

Publication number
BR8106422A
BR8106422A BR8106422A BR8106422A BR8106422A BR 8106422 A BR8106422 A BR 8106422A BR 8106422 A BR8106422 A BR 8106422A BR 8106422 A BR8106422 A BR 8106422A BR 8106422 A BR8106422 A BR 8106422A
Authority
BR
Brazil
Prior art keywords
fire resistant
resistant laminate
laminate
fire
resistant
Prior art date
Application number
BR8106422A
Other languages
English (en)
Inventor
Harold Orr Mccaskey
Melvin Edward Benson
Original Assignee
Westinghouse Electric 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
Application filed by Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of BR8106422A publication Critical patent/BR8106422A/pt

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B19/00—Layered products comprising a layer of natural mineral fibres or particles, e.g. asbestos, mica
    • B32B19/02—Layered products comprising a layer of natural mineral fibres or particles, e.g. asbestos, mica the layer of fibres or particles being impregnated or embedded in a plastic substance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B19/00—Layered products comprising a layer of natural mineral fibres or particles, e.g. asbestos, mica
    • B32B19/06—Layered products comprising a layer of natural mineral fibres or particles, e.g. asbestos, mica next to a fibrous or filamentary layer
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/34—Ignifugeants
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/30—Multi-ply
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H5/00—Special paper or cardboard not otherwise provided for
    • D21H5/0002—Flame-resistant papers; (complex) compositions rendering paper fire-resistant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/02—Composition of the impregnated, bonded or embedded layer
    • B32B2260/021—Fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/04—Impregnation, embedding, or binder material
    • B32B2260/046—Synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/101—Glass fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/92—Fire or heat protection feature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • Y10T428/24851—Intermediate layer is discontinuous or differential
    • Y10T428/24868—Translucent outer layer
    • Y10T428/24876—Intermediate layer contains particulate material [e.g., pigment, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/251—Mica
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/256—Heavy metal or aluminum or compound thereof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/259—Silicic material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/608—Including strand or fiber material which is of specific structural definition
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/659—Including an additional nonwoven fabric
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/659—Including an additional nonwoven fabric
    • Y10T442/664—Including a wood fiber containing layer
BR8106422A 1980-10-09 1981-10-06 Laminado resistente ao fogo BR8106422A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/195,550 US4371579A (en) 1980-10-09 1980-10-09 Fire-resistant filler sheet laminates

Publications (1)

Publication Number Publication Date
BR8106422A true BR8106422A (pt) 1982-06-22

Family

ID=22721831

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8106422A BR8106422A (pt) 1980-10-09 1981-10-06 Laminado resistente ao fogo

Country Status (4)

Country Link
US (1) US4371579A (pt)
EP (1) EP0050448A1 (pt)
JP (1) JPS5795455A (pt)
BR (1) BR8106422A (pt)

Families Citing this family (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4600634A (en) * 1983-07-21 1986-07-15 Minnesota Mining And Manufacturing Company Flexible fibrous endothermic sheet material for fire protection
US4480001A (en) * 1983-09-30 1984-10-30 Westinghouse Electric Corp. Antistatic laminates containing metal salts
JPS60161143A (ja) * 1984-02-01 1985-08-22 大日本印刷株式会社 不燃化粧材
DE3408932A1 (de) * 1984-03-12 1985-09-19 Fiebig & Schillings Gmbh, 8772 Marktheidenfeld Decklagenmaterial auf vlies- oder gewebebasis
US4572862A (en) * 1984-04-25 1986-02-25 Delphic Research Laboratories, Inc. Fire barrier coating composition containing magnesium oxychlorides and high alumina calcium aluminate cements or magnesium oxysulphate
US4661398A (en) * 1984-04-25 1987-04-28 Delphic Research Laboratories, Inc. Fire-barrier plywood
BR8506821A (pt) * 1984-07-02 1986-11-25 Essex Group Laminado composto de mica e processo para produzir o mesmo
US4601952A (en) * 1984-07-02 1986-07-22 Essex Group, Inc. High density moisture resistant mica sheet
EP0175635A3 (en) * 1984-09-11 1986-09-03 Essex Group Inc. High density moisture resistant mica cylinders
US4601931A (en) * 1984-09-11 1986-07-22 Essex Group, Inc. High density, moisture resistant mica cylinders
US4637852A (en) * 1984-10-22 1987-01-20 Essex Group, Inc. Neoalkoxy titanate in high density mica laminates
US4603088A (en) * 1984-10-22 1986-07-29 Essex Group, Inc. Neoalkoxy titanate in high density mica laminates
DE3512842A1 (de) * 1985-04-10 1986-10-16 Feodor Burgmann Dichtungswerke Gmbh & Co, 8190 Wolfratshausen Dichtung
JPH0699880B2 (ja) * 1985-07-26 1994-12-07 小野田セメント株式会社 不燃紙及びその製造方法
US4803113A (en) * 1985-09-30 1989-02-07 Essex Group, Inc. Corrugated mica product
FR2588711A1 (fr) * 1985-10-11 1987-04-17 Cableco Sa Plaque pour foyer de cuisson a chauffage a induction et ustensile de cuisine utilisable avec un tel foyer
US4783365A (en) * 1986-04-09 1988-11-08 Essex Group, Inc. Mica product
US4683162A (en) * 1986-04-09 1987-07-28 Essex Group, Inc. Mica product
JPS63204782A (ja) * 1987-02-20 1988-08-24 古河電気工業株式会社 印刷配線基板
US5411793A (en) * 1987-06-12 1995-05-02 Kabushiki Kaisha Osaka Packing Seizosho Molded boards of calcium silicate and process for producing the same
JP2683532B2 (ja) * 1987-06-25 1997-12-03 王子化工株式会社 耐熱性食品容器材料
US5028984A (en) * 1988-11-04 1991-07-02 International Business Machines Corporation Epoxy composition and use thereof
US4960634A (en) * 1990-03-14 1990-10-02 International Business Machines Corporation Epoxy composition of increased thermal conductivity and use thereof
US5232745A (en) * 1991-03-01 1993-08-03 Manville Corporation Method of neutralizing acid containing compositions present in an insulation board
JP2654735B2 (ja) * 1992-12-04 1997-09-17 日東電工株式会社 ラベル基材、インク及びラベル
US5641553A (en) * 1993-03-24 1997-06-24 Tingley; Daniel A. Cellulose surface material adhered to a reinforcement panel for structural wood members
US5460864A (en) * 1993-05-07 1995-10-24 Ciba-Geigy Corporation High temperature 2000 degrees-F burn-through resistant composite sandwich panel
DE4419007C2 (de) * 1994-05-31 2000-06-15 Freudenberg Carl Fa Verfahren zur Herstellung einer imprägnierten Flachdichtung
EP0795671B1 (de) * 1996-02-14 2001-11-28 Schörghuber Spezialtüren GmbH & Co. Betriebs-KG Feuer- und/oder Rauchschutztürblatt
TW455538B (en) * 1996-09-04 2001-09-21 Sumitomo Bakelite Co Flame-retardant or incombustible decorative laminated sheet
IT1284901B1 (it) * 1996-10-01 1998-05-28 Mauro Ambrosiano Apparecchio di riscaldamento per indumenti e biancheria
US6958184B2 (en) * 1997-01-16 2005-10-25 Sekisui Chemical Co., Ltd. Fire-resistant sheetlike molding, fire-resistant laminate for covering steel, fire-resistant structure for wall, and method for constructing fire-resistant steel and fire-resistant wall
CA2277991C (en) * 1997-01-16 2006-04-25 Sekisui Chemical Co., Ltd. Fire-resistant sheetlike molding, fire-resistant laminate for covering steel, fire-resistant structure for wall, and method for constructing fire-resistant steel and fire-resistant wall
US6287681B1 (en) * 1999-07-20 2001-09-11 The Mead Corporation Preparation of wear-resistant laminates using mineral pigment composites
US7037865B1 (en) * 2000-08-08 2006-05-02 Moldite, Inc. Composite materials
JP4610238B2 (ja) * 2004-06-21 2011-01-12 ダイセルポリマー株式会社 樹脂成形体の接合方法
US20060234026A1 (en) * 2005-04-18 2006-10-19 Huusken Robert W M Non-combustible high pressure laminate
US20070004307A1 (en) * 2005-06-30 2007-01-04 Wyss Kurt H High intensity flame resistant composites
US7608550B2 (en) * 2005-11-04 2009-10-27 Johns Manville Fire retardant fiberglass mat
DE102009004970A1 (de) * 2009-01-14 2010-07-15 Johns Manville Europe Gmbh Mineralisch beschichtete textile Flächen für Holzwerkstoffe
US8104519B1 (en) 2010-08-13 2012-01-31 Johns Manville Pipe insulation product with charge dissipater
TWI521016B (zh) 2012-07-18 2016-02-11 財團法人工業技術研究院 蝕刻含聚亞醯胺之膜層的方法
CN104760106B (zh) * 2015-03-30 2017-01-11 广西宾阳县荣良新材料科技有限公司 一种阻燃低醛实木复合地板的生产工艺
WO2017010352A1 (ja) * 2015-07-10 2017-01-19 アイカ工業株式会社 化粧シート
US11555312B2 (en) * 2015-12-31 2023-01-17 Holcim Technology Ltd Polyolefin thermoplastic roofing membranes with improved burn resistivity
US10633082B2 (en) 2017-02-10 2020-04-28 Goodrich Corporation Heat resistant systems and methods for composite structures
US10744355B2 (en) 2017-03-29 2020-08-18 Goodrich Corporation Heat resistant systems and methods
CN109853289B (zh) * 2019-03-15 2021-04-13 浙江科技学院 一种利用反应型阻燃纤维制备的阻燃纸基材料及其制备方法

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3018206A (en) * 1957-12-31 1962-01-23 Westinghouse Electric Corp Fire-resistant decorated composite laminate members and method of producing same
US3220918A (en) * 1961-07-28 1965-11-30 Domtar Ltd Incombustible board containing mineral and cellulosic fibers and metal oxide and method therefor
DE1817536A1 (de) * 1968-12-31 1970-07-23 Scheufelen Papierfab Nicht brennbare Dekorplatte
US3523061A (en) * 1969-06-20 1970-08-04 Minnesota Mining & Mfg Porous sheet materials of mica and unfused staple fibers
US3881978A (en) * 1974-03-11 1975-05-06 Westinghouse Electric Corp Method of forming a polyester preimpregnated fiberglass sheet
JPS5716894B2 (pt) * 1974-11-09 1982-04-07
DE2700608A1 (de) * 1977-01-08 1978-07-20 Basf Ag Nichtbrennbarer verbund-daemmstoff
US4157414A (en) * 1977-05-26 1979-06-05 Westinghouse Electric Corp. Resin rich polybutadiene-mica flexible high voltage insulation
US4262788A (en) * 1977-10-14 1981-04-21 Yasunobu Yamamoto Friction member of non-asbestos
DE2963591D1 (en) * 1978-02-18 1982-10-28 Lowe & Fletcher Ltd Key, method of producing same and process and apparatus for use in the method for magnetising the key
GB2031043A (en) * 1978-06-20 1980-04-16 Turner & Newall Ltd Fibrous Sheet Material
JPS5519723A (en) * 1978-07-27 1980-02-12 Mitsubishi Paper Mills Ltd Electric insulated sheet
EP0009310B1 (en) * 1978-08-17 1983-06-08 Imperial Chemical Industries Plc Compositions of vermiculite lamellae and solid particulate materials and process for the production of vermiculite articles
US4244781A (en) * 1979-06-11 1981-01-13 Nicolet, Inc. Non-asbestos millboard composition
US4247364A (en) * 1979-07-02 1981-01-27 Armstrong Cork Company Method of making a smooth, dimensionally stable, mica-filled, glass fiber sheet
US4259398A (en) * 1979-07-23 1981-03-31 Mitsubishi Paper Mills, Ltd. Electrical insulating material
US4271228A (en) * 1980-02-04 1981-06-02 Hollingsworth & Vose Company Sheet material containing exfoliated vermiculite

Also Published As

Publication number Publication date
JPS5795455A (en) 1982-06-14
US4371579A (en) 1983-02-01
JPH0249220B2 (pt) 1990-10-29
EP0050448A1 (en) 1982-04-28

Similar Documents

Publication Publication Date Title
BR8106422A (pt) Laminado resistente ao fogo
DK101281A (da) Brandalarmsystem
TR21510A (tr) Soguga karsi yuezey tesirli sulu formuelasyon
NL185026C (nl) Brandwerend bouwelement.
NO811124L (no) Brannhemmende midler
BR8406442A (pt) Valvula de gaveta resistente ao fogo
AT382414B (de) Wand- oder deckenverkleidung
DK272782A (da) Brandresistente materialer
AT364252B (de) Feuerloeschkreiselpumpe
JPS57100592A (en) Fire alarm
NO164926C (no) Brannsikker vegg.
DK488884D0 (da) Ildslukker
ES498897A0 (es) Aparato extintor de incendios
IT1155334B (it) Dispositivo antincendio
NO810625L (no) Brannslukningsapparat.
BE883020A (fr) Zuigmondstuk voor een stofzuiger
AT387569B (de) Feuerfeste erzeugnisse
BE889846A (fr) Sous-plafond
ATA267480A (de) Feuerloeschkreiselpumpe
BE889493A (fr) Hefinrichting met rechtgeleiding
JPS56111991A (en) Fire alarm
AT364251B (de) Feuerloeschkreiselpumpe
ES492435A0 (es) Perfeccionamientos introducidos en la construccion de chime-neas de fuego abierto
BE881881A (fr) Remenergierecuperator met perslucht
SU915087A2 (en) Fire alarm