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Publication numberUS1386554 A
Publication typeGrant
Publication dateAug 2, 1921
Filing dateSep 15, 1920
Priority dateSep 15, 1920
Publication numberUS 1386554 A, US 1386554A, US-A-1386554, US1386554 A, US1386554A
InventorsEaston Dalglish John
Original AssigneeEaston Dalglish John
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 1386554 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)



Patented Aug. 2', 1921.


` WALL-:30113311 ATo all whom it may concern."

Be it known that'l, JOHN Ev.- DALGLISH, a, citizen of the United States, residingat Somerville, in ythe county of Middlesex and State of Massachusetts, have invented new and useful Improvements/in Wall-Boards, of which the following is a specification.

rlhis invention relates to facings for buildand more particularly to devices of this kind in :the form of a slab or tile. The invention has for its object to provide a very strong and durable as well as a fire proof wall board, and one which has a smooth surface and which will not warp.

5 The invention also has for its object to provide a wall board which is very simple cation.

and inexpensive,and which can be manufactured at thebuildin site.A

Other objects and vantages of the in. vention will be pointed-out in the detailed description appearing hereinafter, and in order that the same may be better under stood, reference is had t0 the accompanying drawing forming a part of this specifi- In the drawing,

Figure 1 is a plan view of the article, and Figs. 2 and 3 are cross sectionslon the lines 2-,2 and 3 3, respectively of F'ig. 1 Referring specifically to the drawing, the `wallboard is 'composed of a rectangular slab 5 of plastic material in which are embedded wooden strips 6. The material of which the slab is made is a mixture of plaster of Paris, saw dust and marble dust to which a ysuitable quantity of water isadded to produce a plastic mass which is molded "and allowed to set until it assumes a hard mass. The plastic composition is poured lnto the mold, a sufficient quantity being poured to I produce a thin slab. A sheet of burlap 7 or other suitable rough reticulated binder niaterial is then placed on top ofthe slab and pressed down into the composition, after which the wooden strips 6 are placed on top of the burlap sheet, which latter is now pulled over the wooden strips along the sides of the slab, and short pieces of burlap 8 are spread Specification of Letters Patent.


soMEnvrIl-LE, MAssAcHUsE'rrs Patented Allg'. 2, i921. 15, `1920. serial No. 410,356. y

smooth. After the plastic mass has hardened the top is polished to form the face of the slab. The burlap embedded in the slabl act/s as a binder to hold the plastic composition ing walls generally known as wall boards, together, and the wooden strips serve to reinv force the slab, and they are also employed for nailing purposes. It will be noted that the slab is rabbeted at its edges so that when a number of slabs are assembled to produce a wall facing, they may be interlocked and a smooth joint between the slabs is made possible. It will be understood, however,

that any other type .of joint may be employed. The wooden strips are positioned to lie in the rabbeted portions-of the slab,

and hence the heads of the nails driven therethrough are completely concealed. f

A slab constructed as hereinbefore dealso very strong and durable. The slabs can be nailed directly to the studding, and by .pplying some of the same plastic composi'- g t1on over the joints, and troweling the same smooth, a perfectly smooth w'all is obtained, l-all the joints beingcovered and thus con- 'lcealed The slabs may also be given an ornamental face and used for ceilings, and

scribed is lire-proof and water-proof and no lathing or grounds are needed. A'further advantage of a slab constructed as hereinbefore'described is its cheapness, and the fact that it can be manufactured directly at the building site, thus saving transportation expenses.

I claim: 4

A building unit composed 0f a slab of plastic material having rabbeted edges,

wooden strips embedded in the body of the slaband also in the rabbeted edgewportions thereof, 'said edge strips running in the direction of the length of the edges of the slab, and a reticulated binder sheet around the strips, said sheet being also embedded in the slab.

In testimony whereof I aliix m si attire.'


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4031285 *Dec 16, 1974Jun 21, 1977Miller Charles HLightweight, reinforced foamed organic polymer and cementitious material structure
US4089465 *Dec 15, 1976May 16, 1978Georg Fischer AktiengesellschaftWear protective liner assembly
US4361995 *Feb 4, 1980Dec 7, 1982Isover Saint-GobainU-Shaped plasterboard
US5404687 *Apr 24, 1991Apr 11, 1995Avco CorporationIntumescent fireproofing panel system
US5900203 *Dec 2, 1996May 4, 1999Poly Plus Inc.Method of making load-bearing structures
US6494013Jan 20, 2001Dec 17, 2002Richard W. WinskyeBuilding construction system, components thereof, and method therefore
US7748183 *Nov 7, 2005Jul 6, 2010Composite Foam Material Technology, LlcSystem, methods and compositions for attaching paneling to a building surface
US8205403Jun 26, 2012Composite Foam Material Technology, LlcSystem, methods, and compositions for attaching paneling to a building surface
US8806826 *Jul 11, 2011Aug 19, 2014Matthew MannLocking panel veneer system
US8997423Jun 14, 2013Apr 7, 2015Matthew MannPanel veneer system with cage-type embedded rail
US9267295Mar 23, 2015Feb 23, 2016Matthew MannSuspension rails for panel veneer systems
US20060123729 *Nov 7, 2005Jun 15, 2006Myers Jeffrey DSystem, methods and compositions for attaching paneling to a building surface
US20070125041 *Sep 13, 2005Jun 7, 2007Harvey MisbinWallboard system and methods of installation and repair
US20100269438 *Jul 2, 2010Oct 28, 2010Composite Foam Material Technology, LlcSystem, methods, and compositions for attaching paneling to a building surface
US20120174516 *Jul 11, 2011Jul 12, 2012Matthew MannLocking Panel Veneer System
U.S. Classification52/591.4, 52/600
International ClassificationE04C2/04
Cooperative ClassificationE04C2/043
European ClassificationE04C2/04C