US1266574A - Lath-board. - Google Patents

Description

S M. FORD.

LATH BOARD.

APPLICATION FILED Aue.21.1s1s.

- Patented May 21,1918.

[ nmniar SIZZQSMFQTd fliior e To all whom it mag concern and add thereto the additional air sites in. roan, on ST. m, MINNESOTA;

I LATE-BOARD.-

aaeegsraq Be it known that I, SILAs' M. FORD, 'a

citizen of the United States residing at St.

Paul, in they county of Ramseyand State of Minnesota, have invented certain new and useful Improvements in. Lath-Boards, lof which the following is a specification.

One object of my invention isv to provide.

in a lath board improved air spacesthat will .be left unfilled with plaster when the lathv board is put into service.

Another object of my invention is to provide means, for applying to lath boards manufactured without the additional air spaces contemplated in this invention, that can readily be applied to such lath boards spacescontemplated herein. r

Another object of my invention is to provide a style of lath board that can be used either as an insulating medium between walls or floors, or as the commercial type of lath-board. p

Another object of my invention is to pro vide a lath board that can'be positioned in a cement blockor title, furnishing an insulating wall through the body of the block .or

e Y shaped formation serve to space the lath til i Another object of my invention is to provide means for stifi'ening the lath board to prevent distortion.

With these and 'ncidental objects in view, the invention consists of certain novel features of construction and combination of parts, the essential elements of which are hereinafter described with reference to the drawing which accompanies and forms a part of this specification.

In the drawing Figure 1 is an isometric view of a portion of a lath board embodying my preferred construction.

Fig. 2 is a similar view of a modification of the same type of board. Fig. 3 is a'similar view of a second modification.

'Fig. 4: is an isometric view of a portion of a still further modified form of inserted strip used in the lath board,-and Figure 5 is an isometric view of a cement block or title.

embodying my improved'insulat ing board. A sheet of fibrous water-proof paper 1, or other suitable material, is corrugated or plaited into a dove-tailed formation, as shown in- Fig. 1 and in the space behind. eachof the lath-like projections a strip of similar material is inserted;

' Specificationof Letters Patent.

' Application filed August 21,191 Serial No. 116,146.

Patented May 21,.1Qli8.

when positioned as shown in the drawing, it

'- I This strip 2 is of suflicient width that I maintains acurved shape soas to provide just behind the lath-like face an air space 3. In the modification shown in Fig. 2, the

strips 2 have a corrugated center 4 to provide additional elasticity, and flat strips 5 either thread'through these corrugations as at 6, or the corrugations are slotted as at 7, and the strips laid therein.

In order'to stiffen the corrugated sheet 1 without the use of the flat strips 5, I bend a strip of the material as at 8, giving the arch 9 with the air space 10 between the arch and the lath-like faces, and continue each end of the arch into the Z-shaped lips 15,

which are preferably glued or cemented to the corrugated sheet at 12, or if desired are cemented along the entire surface of contact. The cementing of this Z-shaped stripat "12 and also along the surface 13 prevents the angle 14: from readily increasing in size, and

as it is impossible for the board to become distorted without'these angles 14 being increased, the c'onstruction' gives a stifiened effect'to the corrugated board. I

In addition the lips '15 terminating'the Z- faces from the wall, and hence provide an air space between the wall and the back faces ofjthe board, as well as the air spaces 10 between the front faces and the arch 9.

I may also employ a strip shaped as shown in Fig. tin place of the strips 2 illustrated in the other figures forobtaining the same results.

By forming a cement block or tile around a sheet ofinsulating board, as shown in Fig. 5, I secure a substantial solid block of cementitious material with continuous air spaces extending through the center plane of the block and also with a water-proof medium extending through the central plane of the block;

While I have described myinvention and illustrated it in several particular designs, I do not wish-it understood that I limit my.

self to these constructions, as the application I of my invention may be varied in many ways within the scope of the following claims:

Claims: I 1. In a lath board, the combination of a sheet of material formed into dove-tailed corrugations having alternate faces on either side thereof, and a strip of material positioned adjacent to the inner surface of each of said faces, and below the plane of the opposite surfaces of said lath board?i thereby forming air spaces between sai strips and the inner' faces of said corruguated sheet. I z

2. In a lath" board, the combination with a sheet of insulating material; formed into dove-tailed shaped corrugations of means associated with said dove-tailed shaped corrugations positioned below tllQOPPOSltB face of said lath board for maintaining air spaces.

throughout the entire body of said sheet.

3. In a lath board, the combination of a sheet of material formed into substantially dove-tailed shaped corrugations; a strip of fibrous Water proof material positioned of substantiallydove-tailed shaped corrugations and havlng strips of material positioned in each of the corrugations thus formed and positioned below the face of the completed lath board for maintaining air spaces throughout the block or sheet of cementitious material in which said insulating board is used.

5. In a lath board the combination of a sheet of material formed into dove-tailed shaped corrugations,- and spacing strips positioned on and running longitudinally of the faces formed in said sheet to space said faces from the Wall to which said insulating board is applied, said spacing strips each having a fold or V-shaped section, one

positioned within the depression of the corrugations and the other arm lying along the exterior .of the lath-like faces.

- of the arms ofthe V-shaped section being.

. 6. In a lath board the combination of a sheet of insulating material formed into dove-tailed shaped corrugations; and reinforcing strips having V-sh'aPed portions positioned over the outer angles of said dovetailed corrugations, one arm of each V- shaped portion being positioned on the face of the lath-like projection formed, and the other arm being positioned within thev depression between thelath li'ke faces.

sheet of material formed into substantially dove tailed corrugations, astrip of material positioned in the depressions formed by saidcorrugations, said strip being formed into a U shaped section with the ends out 7 In a lath board the combination of a turned and the curve of the bight inverted.

SILAS M. FORD.

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