US1616651A - Lath board and method of making the same - Google Patents

Description

Feb. 81.921.

s. M. FORD Lum vom: Ann METHOD oF MAKING' Tm; `smi:

Filed Nov., 27. A192.2y l

Hrrae/rcr i5 proofing material.

Patented F eb. 8, 1927.

lFORD, Y1D.EClllASElD, ASSIGNR 'lO CLARA FORD.

BOARD-AND METHOD O-F MTA-KIN G ,'llHEfSLAlVIE.

Application filed November 27, 1922. Serial No. 603,655.

One object of my invention isvtoprovide a lath board formed of paper or other suitable material 4corrugated into dove-tailed shape plaits, the material of which is impregnated ,5 from both sides With a Water-proofing.com-

.of the class described having reinforcing wires therein `Which are coated with a Water- Another object is to provide in a lath board of the iclassvdgescribed, vhaving reinforcing Wires therein, means 'for making .a substantially yrigid rconnection between Lthe wires and .material composingthe lathboard.

Another object isto ,previde a ,method `for making a .lath board of the class .described vith the central `portion lthereof havinghigh insulating qualities and ,all exposed Iportions ithereof Water-proofed Vlilith these and incidental objects in View, the invention consists of certain novel featurcs of construction and combinations of parts, the essential elements of which are 3U hereinafter described With reference to the drawing which accompanies and forms a part of this specification.

ln the drawing, Figure l is a perspective view of a lath board embodying` my invention; Figure 2 is an enlarged fragmentary detail of the same, showing the outer surf faces of the sheet impregnated and the inner portion unimpregnated with a water-proofing compound and lfig. 3 is an enlarged sec-V fi) tion taken longitudinally through one of the reinforcing Wires. t

A s shown in the drawing, the lath board consists of a sheet of paper, felt or of other suitable material preferably corrugated into a substantially dove-tailed formation with lath like faces l on one side thereof and intermediate depressions 2 between the lath like faces and supporting faces 3 0n the other side of the lath board, the latter faces being narrower than the lath like faces as described in my co-pending application of even date, entitled, Lath board.

Reinforcing fiat Wire or ribbons t are threaded thru the Webs 5 connect-ing the lath like faces and the supporting faces as dei scribedn said application aforesaidand also in various patents heretofore' issued to me.

lt vwill :be noted that Where the reinforcing Wires lpierce the Webs, there is an vaccumulation of the Water-proofing compound 6 (Fig) which flows up around the Wire forminga vheavy lirm ,fillet which not only cementsthe Wire vfirmly to the web but also stiflens and reinforces .the Wire in its connection with ythe web soV the same stiffness of completed board can be obtained with 'fa' thin Wire cemented -in this .manner that could be obtained :by a much thicker vvire that merely'piercedthe Web ivithoutvhaving a iill'etrbuilt up aroundltheaperture.

,In the past it 'has .been common yin the manufact-ure of ylath board of ,this class ,to use a'fsheet of material which` has been impregnated With a bituminous compound such as asphalt .andvto corrugate the material so impregnated into the desiredshape.

l/Vhere-the lathboard has been reinforced ,with -,metal, it has been customary to [use Wire or ribbon .uncoated and hence subject to rdeterioration .if lleft exposed to the Weather.

It is also Well known that paper or felt which has high heat insulating qualities loses a great dealof its heat insulating qualities When impregnated With Waterproofing or fire resisting compound.

Inasmuch as the heat insulating qualities on any material of this class depends upon the amount of air trapped in and held by the fibers 0f the material between the outer surfaces thereof, it is evident that if the sheet is impregnated with the Waterproof-A ing compound, this air Will practically all be expelled from the sheet and heat can be more readily transferred through the Waterproofing substance ivhich completely fills the sheet than through the dead air spaces in the unimpregnated sheet. n

It is also evident that steel Wire Will rust when exposed to moisture and that instorage, shipment and ordinary usage, the reinforcing -Wire Will be subject t0 exposure and consequently to deterioration.

In my present invention, ll prefer to form an unimpregna-ted sheet of material into a dove-tailed shape, thread reinforcing Wires through the Webs and then dip the entire board With its reinforcing Wireinto a Water-proofing compound.

The board is left inthe compound suf- `both sides of ivhich'are formed of the samer. .material but impregnatedwith Waterprooff ing compound. v Y Y In other words, the completed board is "very much' the same as Yif Vit Was made voi two sheets of impregnatedmaterial With a v sheet of uniinpregnat'edV material therebetween butivith the fibers'oit all three sheets Vintimately joinedV together. Moreover the yreinforcing Wires are entirely covered With Water-prooiing Y. material and are closely j'cemented `to the Webs Where they pass throughand any holes or imperfections in Y' the sheet Which might have crept in during the'process ofmanufacture will be filled bynthe dipping operation. n

While IhaveV described my invention and illustrated it in one particular style and method, I do not wish yit-understood ythat l limit myself to this particular embodiment as it isv evident the invention may be varied in 'many Ways Within the scope` of the fol'- lowing claims: y Y* l. A klath board comprising a'sheet of j suitable material yhaving thejouter `'surfaces thereof ycoated'with a Water-prooing com-y pound and' the' inner portion thereof unf impregnated with'y said compound, said sheet Ybeing formedv intoa substantially dove-tailed shaped formation` having- Yoppositely dis-V Y posed lath like faces With intermediate de@ pressions therebetween and Webs connecting said lfaces andy a `plurality of Vreini'oreing Wires threaded through said `Webs 'between said facesfsaidwires,being covered With' aV Waterproofing compound. s Y n 2. The method of making lath board comprising the corrugating of a sheet of suitable material of high insulatingkqualities into the Y desired shape,vv passing reinforcing Wires through said material parallel to the outer' faces of the completed board, thendipping said reinforcing lsheet finto Water-prooiing compound sufliiciently longv to coat the Wires and outer surfaces' of they sheet Wit-h said compound and cement Vthem together, but leaving a `substantial portion of the g sheet between' the Iaces unimpregnated'with said 'Y compound.

3. ln a lathboa'rd,V thecombination otra Y sheet of'corrugated material, a reinforcing Wire threadingsaid material andY fillets of a dipping compound surrounding said wire Where it pierces said niaterial.V Y

4. A lathboard comprising the combination with a sheet of suitable material formed into 'substantially dove-tailed shaped corrugations having oppositely disposed lath- Vlike facesA with vconnect-ingWebstherebetween7 `of a pluralityi'of reinforcing Wires piercing said Webs;VV and fillets of van adhesive material connectingsaid Wires to said Webs Where said Webs are pierced byV said Wires.Y

., SILAS M. FGRD.V

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