US1314107A - Expanded board lath. - Google Patents

Description

J. A. WALLER.

EXPANDED BOARD LATH- APPLICATION FILED AUG.26| 191a.

Patented Aug. 26

nvvsrvrom J1. Miller "74 ATTORNEY WITNESSES:

UNITED STATES PATENT OFFICE.

JOHN AUGUST WALLER, OF CHICAGO, ILLINOIS, ASSIGNOR TO EXPANDED WOOD LATE CORPORATION, OF COOK COUNTY, ILLINOIS, A CORPORATION.

EXPANDED BOARD LATH.

To all whom it may concern:

Be it known that I, JOHN A. WALLER, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Expanded Board Lath, of which the following is a specification.

My invention relates to'building construction and has particular reference to expanded wood lath. The general object of the present invention is to effect further economies in material and labor; to speed up construction; to provide an expanded lath that will readily receive and key to itself mortar and other plastic coatings; to provide a form of construction and arrangement of parts adapted to be manufactured rapidly with the aid or simple machinery that will produce the finished lath in a series of uninterrupted operations, and which shall have self-contained or integral spacers that eliminate the cost of metal strips and the like and firmly hold the strips of individual lath in their proper spaced apart relations.

With the above-named objects in view my invention consists in the novel construction, combination and arrangement of parts, all as hereinafter described in detail, illustrated in the accompanying drawing and more particularly pointed out in the appended claims.

In the drawing- Figure 1 is a face or outside view of a section of board sawed and expanded with integral connecting ribs and spacers between the individual strips of lath.

Fig. 2 is a section of board with saw-cuts therein as it appears prior to its expansion.

Fig. 3 is substantially a section on the line 3-3 of Fig. 4. Fig. 4: is a broken away portion of Fig. 1 showing the opposite or rear side of the lath and particularly the integral braces or spacers between the strips of lath.

Fig. 5 is a transverse section of Fig. 1, substantially similar to Fig. 3 with the spacer portions omitted.

In the several views the expanded board as a whole is represented by the numeral 2. In this board are a plurality of series of saw-cuts 3 to 9 inclusive, each series overlapping the adjacent series preferably about one-third of its length. The board 2 is preferably about one-fourth of an inch in thickness, so that one foot of lumber, board measure, when moderately expanded, will yield approximately eight square feet of lat ing.

Specification of Letters Patent.

Application filed August 26, 1918,

shown in Fig. 5

Patented Aug. 26, 1919.

.Serial No. 251,406.

he saw-cuts 3 to 9 are, as shown, made at a uniform slant in the same direction with reference to the edges of the board 2, and are arranged to form connecting ribs 10, 10 between lath strips 11, 1.1. In the present improvement I obviate the cost, weight, material and projections from the surface of the lath involved in providing the usual means for holding lath strips in expanded positions, by providing the integral spacers specifically shown in Figs. 8 and 4:. As the diagonal ribs 10 are thinner than the strips 11 and even with the front side, which makes the rear faces of the lath project beyond said ribs. In these rear portions of the strips 11 I provide enlarged or mortar-key spaces by rabbeting the edges of the strips 11 beyond the plane of the connecting ribs, as at'17, 17 Figs. 4 and 5.

The thus narrowed rear portions of the strips 11 are separately identified by the numeral 18 to distinguish them from the wider outer face portions 11, 11.

Out of these rear or key portions 18 I out at suitable intervals sections 19 by making two longitudinal cuts at right angles to each other, labeled 20 and 21, and a transverse cut 22. The thus partly released section 19 is then bent out at right angles and caused to bear against the adjacent lath 11 in which I provide a recess or shallow pocket 23 into which the free end of the section 19 is inserted and held against, angular movement. I make it possible to bend the section 19 without breaking off the fibers at its base, by partly crushing or pulping the wood as at 2.4, 24 which show indentations made by such pulping. This makes the fibers at the base sufliciently free and pliable to withstand off the bending strain. In Figs. 3 and 4t one lath strip is separately indicated by the numeral 11. In this strip the spacer 19 is shown before being crushed at its base and bent out and is indicated as 19.

without breaking Its dotted lines indicate its operative position at the right hand side of Figs. 3

and 1 the remaining portions of which show the ends of the spacers l9 become firmly cemente'd into the force the strips 11 together is ordinarily sufficient to hold the spacers Sheathing (not shown) may, in like manner, be glued or. cemented to the rear sides of the sheets of lathing by applying it to the lath immediately after the dipping or coating re ferred to.

I claim as 1nyiinvention- V,

1. A Wood lath that consists of aboard with a plurality of series of cuts therethrough and expanded into spaced-apart l strips of lathwith connective ribs thereb-etween and spacers between said strips that are also a part of said board. 7 a 2. A Wood lath Which consists of a board recesses 23. However, the; tension of the connectlng ribs tend ng to firmly in place.

with a series of parallel saw cuts therein and partly cut and bent out spacer portions which hold said saw cuts expanded.

by said lugs;

l. A Wood lath which consists of an eX panded board having a plurality of series of identicalsaw cutstherethrough and having also, a seriesof spacers struck out and pro jecting from one strip to another and hold ing said strips apart. p 3

In testimony whereof I have hereunto subscribed my name.

JOHN AUGUST WALLER'.

Copies of this patent may be obtained for five cents each, b'yaddres'singf the "Commissi'on er of Patents, Washington IL 0 7, i v v

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