US1876340A - Wall board - Google Patents

Wall board Download PDF

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Publication number
US1876340A
US1876340A US355220A US35522029A US1876340A US 1876340 A US1876340 A US 1876340A US 355220 A US355220 A US 355220A US 35522029 A US35522029 A US 35522029A US 1876340 A US1876340 A US 1876340A
Authority
US
United States
Prior art keywords
board
layer
plaster
layers
wall board
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
Application number
US355220A
Inventor
Leslie S Odell
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.)
Building Products Ltd
Original Assignee
Building Products Ltd
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 Building Products Ltd filed Critical Building Products Ltd
Priority to US355220A priority Critical patent/US1876340A/en
Application granted granted Critical
Publication of US1876340A publication Critical patent/US1876340A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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.]
    • Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
    • Y10T428/2495—Thickness [relative or absolute]
    • Y10T428/24959—Thickness [relative or absolute] of adhesive layers
    • 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]
    • Y10T428/31815—Of bituminous or tarry residue
    • Y10T428/31819—Next to cellulosic
    • Y10T428/31823—Paper
    • 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.]

Definitions

  • This invention relates to new and useful improvements in wall board and particularly to insulating board used for inside walls, partitions and the like and the main object of he invention is to provide an insulating board to which plaster may be quickly and easily applied without saturating the board.
  • Another object is to provide an insulating board having moisture proof material in proximity to the side to which plaster is applied.
  • I provide an insulating board built up of a plurality of layers of fibrous material said layers being cemented together by any of the well known cementitious compounds used for this purpose.
  • an outer layer which is attached to the aforementioned by a waterproofing compound.
  • the said outer layer is of fibrous material and may be treated to render same moisture proof.
  • 11, 12, 13 and 14 designate separate layers of fibrous material or pulp which are held together by an adhesive compound 15 to form a comparatively thick insulating .board.
  • the layers 11, 12, 13 and 14 as the moisture from the wet plaster will not penetrate the layer 18 and affect the board. It will also be seen that the layer 18 prevents moisture which may be absorbed by the layers 11 to14 inclusive from affecting the plaster once same has set.
  • the layer 18 may be of asphalt, but it will be readily understood that the layer 18 may consist of an asphalt treated layer of fibrous material, the asphalt being used as an adhesive to form a bond between the adjacent surfaces of the layers 17 and 14.
  • plaster is readily applied to the surface 19 without affecting the back layer of the board as the layer 18 acts as a barrier for the passage of the moisture through the board.
  • a wall board construction comprising a plurality of separate layers of fibrous material adhesively united in face to face relation to form a comparatively thick insulating board, each layer comprising a mass of fibrous material which is continuous throughout the length and width of the layer and a plaster receiving surface for said board comprising an additional layer of fibrous material joined to an outer layer of said board by a comparatively thin layer of asphaltio waterproof material adapted to serve as a barrier against the penetration of moisture from said additional layer.

Description

Patented Sept. 6, 1932 UNITED STATES PATENT OFFICE- LESLIE S. ODELL, F MONTREAL, QUEBEC, CANADA, ASSIGNOR T0 BUILDING PRODUCTS LIMITED, 015 MONTREAL, QUEBEC, CANADA WALL BOARD Application filed April 15,
This invention relates to new and useful improvements in wall board and particularly to insulating board used for inside walls, partitions and the like and the main object of he invention is to provide an insulating board to which plaster may be quickly and easily applied without saturating the board.
Another object is to provide an insulating board having moisture proof material in proximity to the side to which plaster is applied.
According to my invention, I provide an insulating board built up of a plurality of layers of fibrous material said layers being cemented together by any of the well known cementitious compounds used for this purpose. To this board I apply an outer layer which is attached to the aforementioned by a waterproofing compound. The said outer layer is of fibrous material and may be treated to render same moisture proof.
To illustrate my invention, I have shown a cross sectional elevation of a board built according to my invention.
Referring more particularly to the drawing, 11, 12, 13 and 14 designate separate layers of fibrous material or pulp which are held together by an adhesive compound 15 to form a comparatively thick insulating .board. "It it well known that if plaster is applied to the surface of the board in this state it would become a pulpy mass and would swell. Owing to the uneven drying of the plaster and the board, it will be readily seen that internal stresses would be set up in the board and also in the plaster which possibly would result in cracking of the plaster. It is also well known when the plaster is applied directly to the board that moisture is absorbed by the board even after the plaster has set, resulting in bad marking of the plaster. To overcome the above difliculties, is the main object of this invention and to attain this object, I apply an outside layer 17 which is secured to the aforementioned layers by a cementitious waterproofing material 18 such as asphalt. This layer of waterproofing compound between the two outer layers 14 and 17 of the board allows plaster tobe placed on to the surface 19 without affecting v 1929. Serial No. 355,220.
the layers 11, 12, 13 and 14 as the moisture from the wet plaster will not penetrate the layer 18 and affect the board. It will also be seen that the layer 18 prevents moisture which may be absorbed by the layers 11 to14 inclusive from affecting the plaster once same has set. For illustrative purposes I have shown the layer 18 to be of asphalt, but it will be readily understood that the layer 18 may consist of an asphalt treated layer of fibrous material, the asphalt being used as an adhesive to form a bond between the adjacent surfaces of the layers 17 and 14.
In use, plaster is readily applied to the surface 19 without affecting the back layer of the board as the layer 18 acts as a barrier for the passage of the moisture through the board.
Having thus described my invention, what I claim is:
A wall board construction comprising a plurality of separate layers of fibrous material adhesively united in face to face relation to form a comparatively thick insulating board, each layer comprising a mass of fibrous material which is continuous throughout the length and width of the layer and a plaster receiving surface for said board comprising an additional layer of fibrous material joined to an outer layer of said board by a comparatively thin layer of asphaltio waterproof material adapted to serve as a barrier against the penetration of moisture from said additional layer.
In witness whereof, I have hereunto set my hand.
LESLIE S. ODELL.
US355220A 1929-04-15 1929-04-15 Wall board Expired - Lifetime US1876340A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US355220A US1876340A (en) 1929-04-15 1929-04-15 Wall board

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US355220A US1876340A (en) 1929-04-15 1929-04-15 Wall board

Publications (1)

Publication Number Publication Date
US1876340A true US1876340A (en) 1932-09-06

Family

ID=23396670

Family Applications (1)

Application Number Title Priority Date Filing Date
US355220A Expired - Lifetime US1876340A (en) 1929-04-15 1929-04-15 Wall board

Country Status (1)

Country Link
US (1) US1876340A (en)

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