US1828029A - Wall board, sheathing lumber and the like - Google Patents
Wall board, sheathing lumber and the like Download PDFInfo
- Publication number
- US1828029A US1828029A US373052A US37305229A US1828029A US 1828029 A US1828029 A US 1828029A US 373052 A US373052 A US 373052A US 37305229 A US37305229 A US 37305229A US 1828029 A US1828029 A US 1828029A
- Authority
- US
- United States
- Prior art keywords
- board
- fibres
- lumber
- suspension
- sheathing
- 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
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21J—FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
- D21J1/00—Fibreboard
- D21J1/16—Special fibreboard
-
- 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
- Y10S428/907—Resistant against plant or animal attack
-
- 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
- Y10S428/921—Fire or flameproofing
-
- 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
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2933—Coated or with bond, impregnation or core
- Y10T428/2938—Coating on discrete and individual rods, strands or filaments
-
- 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
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31971—Of carbohydrate
- Y10T428/31993—Of paper
- Y10T428/31996—Next to layer of metal salt [e.g., plasterboard, 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
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
- Y10T442/2762—Coated or impregnated natural fiber fabric [e.g., cotton, wool, silk, linen, etc.]
Definitions
- redwood bark sheathing lumber has a comparatively absorbent and open texture. For some purposes this is undesirable, and it there-fore becomes necessary to treat said board or lumher with a sizing material, or the like, so as to cause a firmer adhesion of the fibres to each other.
- One of the objects of the present inven tion is to treat finished porous sheathing lumher or wall board of the type outlined with a material that, while in liquid condition, may be readily applied to the board, possesses the property of hardening comparatively rapidly and formin with the board a unitary structure where y the board is provided with a mineral comparatively non-absorbent surface which may have the additional prop erties of being fire-retardent. For example, we may.
- magnesium oxide in a solution of magnesium chloride, say of a strength of from 18 to 22 Baurn, the effect in either case being the same. If it is desired to vary the color of the material, which in the case of magnesium oxide is substantially white, suitable pigments may be added.
- a creamy suspension of calcined gypsum preferably of-a type which is Suficiently retarded in its setting so that the, material may be sprayed thereon much in the manner of paint.
- a suspension may be obtained by mixing calcined gypsum with Water in which a small amount of sodium phosphate has been dissolved, preferably the disodium phosphate, although known organic retarders of the setting of gypsum may employed with equal effect, the object being in either case so to retard the setting of the gypsum that the same will take place substantially simultaneously with the drying of the board.
- the board of a thin suspension of neat Portland cement and suflicient water to form a sprayable'suspension. If it is desired to endow the board with particular resistance to certaintypes of insects, this may be accomplished by spraying the board with a suspension of zinc oxide in zinc chloride, which also has the properties of setting into a cementlike body.
- Boards prepared in accordance with our invention may be employed as a plaster board, especially if. the material applied thereto is of the same nature as the material which penetrates the fibres, as thereby a particularly good bond is obtained.
- a further advantage, especially when using the board as a base for plastering, is the fact that the suction or absorbent power of the board has already been partly compensated by the presence of the hardened mineral material surrounding the fibres.
- the board prepared in accordance with our .invention has a substantially organic inner portion, consisting of redwood fibres (or other fibres, if they be used), while the outer portions of the fibres are provided with a coating of a set mineral cementitious substance which lends additional strength thereto and greatly diminishes the dusting usually encountered when handling redwood board.
- a board consisting of an inner layer of compacted felted fibres and an outer layer of similar fibres which individually are encased in a cementitious material, there being insufficient of the latter to form a distinct layer on the surface of the board.
- Plaster-board consistin of a mass of bark fibres, the outer layers of said fibres being provided with a coating of a set cement, the cement being insufficient in amount to form a substantially individual layer above the surface of the board.
- Plaster-board consisting of a mass of compacted felted fibres, at least one side of said board having the fibres constituting the same provided with a coating of a set cement, the cement being lIlSllfllClGIlt in amount to form a substantially individual layer above the surface of the board.
Landscapes
- Finishing Walls (AREA)
Description
tree stares FAT CARL MARX, OF CHICAGO, AND ELTON R. DARLING, OF DANVILLE, ILLINOIS, ASSIGNORS TO PACIFIC LUMBER COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF MAINE No Drawing.
WALL BOARD, SEEA'I'HING LUMBER AND THE LIKE Application filed June 28,
set forth in the co-pending application of Elton R. Darling, Serial No. 372,224, filed. June 19, 1929.
As ordinarily prepared, redwood bark sheathing lumber has a comparatively absorbent and open texture. For some purposes this is undesirable, and it there-fore becomes necessary to treat said board or lumher with a sizing material, or the like, so as to cause a firmer adhesion of the fibres to each other.
However, it is desirable to maintain the interior of the board in its open and porous condition, while substantially treating or impregnating the outer portions of the board.
One of the objects of the present inven tion is to treat finished porous sheathing lumher or wall board of the type outlined with a material that, while in liquid condition, may be readily applied to the board, possesses the property of hardening comparatively rapidly and formin with the board a unitary structure where y the board is provided with a mineral comparatively non-absorbent surface which may have the additional prop erties of being fire-retardent. For example, we may. apply to the board, either after it has been dried or while undergoing drying, a thin coating of what inherently amounts to Sorel cement or the like, For example, we may make a suspension of magnesium oxide in .suficient hydrochloric acid to form a certain amount of magnesium chloride as a; result of the interaction of the magnesium oxide and the acid; having the suspension thin enough so that it may be applied to the surface of the board, on either or both sides thereof, by means of a spray gun or may be applied by rollers or even by a brush, although the spray gun is to be preferred as thereby the solution or suspension is caused to penetrate somewhat deeper into the board. This suspension of magnesium oxide in magnesium chloride soon after it penetrates the board will set into a cementitious body which closes up the pores of the board and also sur- 1929. Serial No. 873,052.
rounds the fibres near the surface thereof with a coating of magnesium oxychloride or S'orel cement. After the boards are dried, they will have thus been endowed with a penetrating coating infusible, insoluble and fire-proof material.
It is also possible to suspend the magnesium oxide in a solution of magnesium chloride, say of a strength of from 18 to 22 Baurn, the effect in either case being the same. If it is desired to vary the color of the material, which in the case of magnesium oxide is substantially white, suitable pigments may be added.
As an alternative method for providing the board with an interpenetrating surface of mineral material, it is also possible to apply thereto a creamy suspension of calcined gypsum, preferably of-a type which is Suficiently retarded in its setting so that the, material may be sprayed thereon much in the manner of paint. Such a suspension may be obtained by mixing calcined gypsum with Water in which a small amount of sodium phosphate has been dissolved, preferably the disodium phosphate, although known organic retarders of the setting of gypsum may employed with equal effect, the object being in either case so to retard the setting of the gypsum that the same will take place substantially simultaneously with the drying of the board.
A further alternative is the application to, v
the board of a thin suspension of neat Portland cement and suflicient water to form a sprayable'suspension. If it is desired to endow the board with particular resistance to certaintypes of insects, this may be accomplished by spraying the board with a suspension of zinc oxide in zinc chloride, which also has the properties of setting into a cementlike body.
We are aware of the use of solutions of organic sizes, glues, casein, and the like for the stifienin and water-proofing of wall board. We are a so aware of the use of said board as a base for plastering operations. We desire, therefore, to point out wherein our invention differs from the known application of cementitious material to the surface of a 7 of the board, the object being to reinforce and compacted felted redwood to coat the particles of the board with the mineral material without of necessity forming a distinct layer above the surface of the board.
Boards prepared in accordance with our invention may be employed as a plaster board, especially if. the material applied thereto is of the same nature as the material which penetrates the fibres, as thereby a particularly good bond is obtained. A further advantage, especially when using the board as a base for plastering, is the fact that the suction or absorbent power of the board has already been partly compensated by the presence of the hardened mineral material surrounding the fibres.
Instead of applying water for making up the solution of the magnesium chloride or for suspending the gypsum, we may employ the waste liquors resulting from the leaching of redwood bark, whereby we thus incorporate with the board all of the material originally contained therein, the tannic acid naturally present in these leach waters acting as a natural retarder for the settingof the gypsum, so that nothing further will be required than to suspend the calcined gypsum in these leach liquors. In case magnesium chloride solutions are prepared, there will be formed a certain amount of magnesium tannate which is particularly desirable as a component of the finished board as it acts as a fire-proofing agency.
The board prepared in accordance with our .invention has a substantially organic inner portion, consisting of redwood fibres (or other fibres, if they be used), while the outer portions of the fibres are provided with a coating of a set mineral cementitious substance which lends additional strength thereto and greatly diminishes the dusting usually encountered when handling redwood board.
We consider any suitable mineral cement as an equivalent for the Sorel cement, gypsum or Portland cement herein recited. The method of applying the cement is also purely a mechanical expedient and is immaterial in interpreting the hereunto appended claims.
. We claim:
1. A board consisting of an inner layer of compacted felted fibres and an outer layer of similar fibres which individually are encased in a cementitious material, there being insufficient of the latter to form a distinct layer on the surface of the board.
2. Plaster-board consistin of a mass of bark fibres, the outer layers of said fibres being provided with a coating of a set cement, the cement being insufficient in amount to form a substantially individual layer above the surface of the board.
3. Plaster-board consisting of a mass of compacted felted fibres, at least one side of said board having the fibres constituting the same provided with a coating of a set cement, the cement being lIlSllfllClGIlt in amount to form a substantially individual layer above the surface of the board.
4. The process of makin a building material in the form of a boar which comprises sizing redwood bark fibres, forming the same into a compacted board and spraying or otherwise applying to at least one surface of said board a penetrating coating of a cementitious material capable of setting into a hardened insoluble mass, and drying said board.
5. The process of making a building material in the form of a board which comprises sizing redwood bark fibres, forming the same into a compacted board and spraying the same with a suspension of a cementitious substance in the leach waters from the treatment of said redwood bark. V
6. The process of making a building material in the form of a board which comprises sizing redwood bark fibres, forming the same into a compacted board; suspending calcined gypsum in the leach-waters resulting from the leaching of said bark, and applying said suspension to said board in such manner that said suspension impregnates at least one side of said board to an appreciable depth and sets therein to a mass of hardened gypsum.
In witness whereof, we have hereunto subscribed our names.
CARL MARX. ELTON R. DARLING.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US373052A US1828029A (en) | 1929-06-22 | 1929-06-22 | Wall board, sheathing lumber and the like |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US373052A US1828029A (en) | 1929-06-22 | 1929-06-22 | Wall board, sheathing lumber and the like |
Publications (1)
Publication Number | Publication Date |
---|---|
US1828029A true US1828029A (en) | 1931-10-20 |
Family
ID=23470711
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US373052A Expired - Lifetime US1828029A (en) | 1929-06-22 | 1929-06-22 | Wall board, sheathing lumber and the like |
Country Status (1)
Country | Link |
---|---|
US (1) | US1828029A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3150215A (en) * | 1959-03-30 | 1964-09-22 | Willits Redwood Products Compa | Method of producing acoustic tile from redwood bark fibre and product obtained |
US3350261A (en) * | 1966-05-12 | 1967-10-31 | Weyerhaeuser Co | Paper stiffened with bark extractives and method of making the same |
US4231975A (en) * | 1979-09-27 | 1980-11-04 | Peltier John W | Evaporative cooler and liquid-gas contact pad therefor |
US4868039A (en) * | 1988-12-29 | 1989-09-19 | Lehan Warren A | Structural panel incorporating clay grog and vermiculite and method for making said panel |
US6176920B1 (en) | 1998-06-12 | 2001-01-23 | Smartboard Building Products Inc. | Cementitious structural panel and method of its manufacture |
-
1929
- 1929-06-22 US US373052A patent/US1828029A/en not_active Expired - Lifetime
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3150215A (en) * | 1959-03-30 | 1964-09-22 | Willits Redwood Products Compa | Method of producing acoustic tile from redwood bark fibre and product obtained |
US3350261A (en) * | 1966-05-12 | 1967-10-31 | Weyerhaeuser Co | Paper stiffened with bark extractives and method of making the same |
US4231975A (en) * | 1979-09-27 | 1980-11-04 | Peltier John W | Evaporative cooler and liquid-gas contact pad therefor |
US4868039A (en) * | 1988-12-29 | 1989-09-19 | Lehan Warren A | Structural panel incorporating clay grog and vermiculite and method for making said panel |
US6176920B1 (en) | 1998-06-12 | 2001-01-23 | Smartboard Building Products Inc. | Cementitious structural panel and method of its manufacture |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE2810180C2 (en) | Process for the production of a fire-protecting, foamed material as well as coatings, insulation, cable insulation, insulation protection layers, plates, molded bodies and other objects formed therefrom on the basis of magnesia cement | |
US1828029A (en) | Wall board, sheathing lumber and the like | |
DE1646495B2 (en) | Plaster compounds with a high thermal insulation value | |
DE1222413B (en) | Process for the production of optionally colored pigmented wall coverings | |
US1868372A (en) | Gypsum plaster products and plaster-base material | |
US2126622A (en) | Nail holding building composition | |
US2716617A (en) | Felted fibrous cellulosic structural board having rigidified portion and method of making same | |
US1693715A (en) | Hardened-plaster product | |
US1421888A (en) | Process for weatherproofing clay | |
US2354876A (en) | Method of treating cementitious objects | |
US2879578A (en) | Method of rust-proofing concrete reinforcing elements | |
KR20070077733A (en) | Negative ion emission wall structure of building using environmental porous rock | |
US2295814A (en) | Laminated structural material | |
US2115612A (en) | Method of facing walls | |
US2711377A (en) | Construction material and method of making | |
DE2224307C3 (en) | Process for sealing porous building surfaces against the effects of water | |
DE3230638C2 (en) | ||
USRE26362E (en) | Catalyzed gypsum wallboard and mutho j of production thereof | |
DE322132C (en) | Process for the production of plasterable plasterboards and floorboards | |
US1891878A (en) | Coating composition | |
DE949264C (en) | Process for the elimination or prevention of sooting of masonry | |
US1838075A (en) | Waterproofing material and process therefor | |
DE847570C (en) | Process for the production of cement glazes | |
DE1037944B (en) | Process for the production of porous magnesia cement | |
DE2051755A1 (en) | Plaster - made from hard synthetic foam base |