US1590458A - Metal lath - Google Patents

Description

5 June 29 1926.

G. F. VOIGHT METAL LATH Filed Sept. 29. 1924 3 Sheets-Sheet 1 .00 00 00 00000000000000000 0000000 0 0000000000000000%0000000000000000% 000000000000000000000000000000000 wwwwwvmw0www$ 0 0 0 0$00 0 0 0 $0 0 000000000000000 0000000 00 0 00000 0 00000000000000 0000000000 00000000000 00000000000000 0 0000000000000 0000000000 0 0 0ww0n0m0w0 $$WVM&&%AMVn%%%n$%w%%%% 00 0 0 000000 0 0 0 00 0 0000 w w w w w w ww w 0 %0 0 0 w0 %0 %0 0 0ww0 0 0 0 0 0w0 000 %%0 0 0 0 %0 00 0 &0 0 0 0 0 .#0 04040 v U1. K m K. n Kw n F u N.

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Patented June 29, 1926.

UNITED STATES GEORGEF. VOIGHT, OF OAKLAND, CALIFORNIA.

METAL LATE.

Application filed September 29, 1924.- Serial No. 740,581.

My invention relates to improvements in -metal lath particularly adapted for cooperation with the wall sheathing of stucco structures for supporting and reinforcing the stucco composition; and one of the objects thereof is the provision of elongated indentations or channels pressed into the body of the lath at right angles with its margins and extending approximately half way across the face thereof.

With the foregoing and further ob ects and purposes in view which will appear as the description proceeds, my invention resides in the combination and arrangement of partsand in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made within the scope of what is claimed without departing from the spirit of the invention.

In the accompanying drawings- Figure 1 is aview in elevation of a section of metal lath constructed in accordance with my invention, secured to the face of the wall sheathing of a stucco structure;

Figure 2 shows a modified form of the lath and a fragmental section of wall sheathing;

Figure 3 is a detailed view'of a portion of the lath attached to the wall sheathing;

Figure 4: is a sectional view through the lath, approximately on line 4=4 of either Fig. 1, Fig. 3 or Fig. 6;

Figure 5 is a sectional view on line 5 5, Fig 2, an intermediate portion being broken away; and

Figure 6 shows an edge view of a portion of the lathl Referring to the drawings in detail, throughout which likereference characters designate like arts:

The numera 1 desi ates the usual wall sheathing, secured pre erably in lateral closeup order across the face of the wall timbers ofa structure adapted to be provided with an exterior coating of stucco composition 2.

3 designates my improved lath, which comprises upper and lower marginal wires 4, and intermediate inter-wovenmesh wires 5, formin a web or body portion 6, the latter provi ed with upper and lowerlatera'lly spaced apart indentations 7, which embrace the shaded ortions 8. of the intermediate wires 5 insi e of the broken or dotted lines 9, and extend from the marginal wires 4 of" either edge of the lath to approximately the middle of the body portion, and are formed.

by pressing portions of said marginal wires and portions of said intermediate wires to one side out of the plane of the body portion.

The indentations 7 are adapted primarily as spacing means for holding the lath a prefer to arcuate, the indentations in cross section so that only the comparatively limited areas of the apexes thereof will engage the sheathing.

In the preferred form of the invention,

indentations 7 extend from both the upper and lower marginal wires 4 laterally inwardl to a point approximately equi-dis' tant rom each, at which point they terminate (see Fig. 1), while in the modified form they begin at a, point a distance inwardly from the marginal wires and terminate the same as in the preferred form,

namely, approximately midway from either of said marginal wires (see Fig.2). With the exception mentioned, namely, beginning distant from the marginal wires 4, the indentations are formed and located relative to each other the same as above set forth for the preferred form of the invention. The modified form may possess some advantages over the preferred form where it is desired to over-lap the edges of the one course of the lath over the edge of the next adjoining course above or below. The marginal wires 4 in the modified form not being crimped informing the indentations,

permit of relatively close engagement with the adjoining course when overlapping it.

Thebroken lines 10 illustrate the approximate curvature of the inner ends of the indentationsof the preferred form, and of both the inner and outer ends of the modified form of the invention.

In both of said forms of the invention, the indentations of one edge of the lath are intended to be disposed in staggered relation to the indentations of the other edge, whereby the axes of one set or series thereof will extend approximately equi-distant between, and parallel with, the indentations of the other set (see Fig. 1).

Commercial metal lath is usually manufactured in sheets 36 inches wide and from 25 feet to 50 feet long, and as such is rolled into tightly coiled bundles for purposes of transportation, and I have found by experimenting that when the indentations are formed to extend all the way across the sheet, instead of terminating half way from either edge in staggered order as in the present invention, the lath when unrolled will retain more or less of the curvature of the bundle from which it was unrolled, causing it to bulge out between the indentations after its application to the wall sheathing, which is objectionable, particularly to the plasterer, who finds it difficult to apply the stucco composition uniformly on bulging lath. In the present invention, however, in which the indentations are shorter and extend only half way across the sheet, and in which the lower series of indentations are arranged in staggered relation to the upper series, there is much less danger of bulging of the lath between the indentations. It is also to be noted that as the lower series of indentations are disposed intermediate the upper. series, they materially assist in supporting vertically the stucco composition applied to the wall sheathing in the spaces intermediate the upper indentations.

As the indentations are intended primarily 1 for spacing the lath outwardly from the wall sheathing, their depth, obviously, should be equal to the distance it is desired tospace the lath, which, considering the stucco to be applied to be of the usual thickness, is about of an inch; while the distance between the indentations of either series is preferably about 6 to 8 inches from center-to-centei" of indentations, depending upon the dimensions of the mesh of the lath and also on the thickness of the stucco coating to be applied.

To apply my improved lath to the wall sheathing of a stucco structure, it is simply necessary to stretch the lath longitudinally horizontally across the sheathing, with the indentations seating against the face thereof (see Fig. 1), and drive ordinary nails 11 at suitable intervals through the indentations part way into the sheathing and then bend them over against the lath for binding the sheathing thereagainst, and like nails through the lath intermediate the indentations, the latter nails to be driven part way into the sheathing and then bent over against the lath at a distance outwardly from said sheathing, for securing the lath thereto at said distance outwardly therefrom. The latter nails are adapted both for assisting the former mentioned nails in securing the wall sheathing and for assisting the lath in supporting the stucco applied against the sheathing intermediate the indentations. Any number of nails may be employed for attaching the lath .or for supporting the stucco composition.

WVhile fastening means other than the nails 11 may be employed for attaching the lath to the wall sheathing, such, for instance, as staples or the like, I prefer'to use the nails for the reason that they are less expensive, are more readily manipulated preparatorily to driving, are easier driven, and may be employed advantageously as levers for stretching the lath laterally in any direction if it is desired to do so.

It is to be understood that I do not desire to limit In self to the particular type of woven wire ath shown and described in the present application, but on the contrary the lath may comprise any suitable form of mesh fabric, including that commonly known as poultry netting, or such metal lath known as expanded metal lath, or the like.

It is further to be understood that building paper may be applied to the face of the wall sheathing before the application of the lath or stucco compositionfand, as

such paper when so applied may be considered to form a portion of such sheathing,

the designation wall sheathing or sheath.

ing as used in this specification shall include such paper.

I claim:

1. In lath of the character described, a body portion having a plurality of indentations pressed thereinto from one side and extending from one edge thereof to approximately the center thereof, where they terminate.

2. In lath of the character described, a body portion having a plurality of indentations pressed thereinto at intervals and extending from one of its margins laterally inwardly and terminating substantially inwardly from the opposite margin.

3. In lath of the character described, a body portion having a plurality of elongated indentations pressed thereinto at regular intervals from one side, said indentations intersecting with one of the margins of the lath and extending from said margin inwardly at right angles therewith but ter-= minating short of the opposite margin.

4. In lath of the character described, a body portion havin an elongated indentation formed therein and extending from one of its margins a distance inwardly but terminating short of the opposite margin,

and a second indentation formed in said body portion and extending from said op- Mil posite mar 'n a distance inwardly but terminating ort of said first named mar 'n,

the axes of said indentations eaten g parallel with each other.

5. In lath of the character described, a body portion havin a plurality of elongated indentations ormed therein, a division of said indentations extending from its upper margin at right angles inwardly and terminating approximately midway of said body portion, the other division of said indentations extending from the lower margin of said body portion at right angles upwardly and termina' approximately midway thereacross, said mdentations disposed at regularly spaced apart intervals and in such relative order that the axes of of the other division of said indentations.

6. Metal lath oi the character described,

comprising, a body portion having upper and lower marginal wires, said body portion ha 'a plurality of laterally spaced elongated indentations pressed therein from one side, opposed ends of said indentations disposed in'parallel planes, one of said planes extending between said marginal wires and parallel therewith.

7 In metal lath of the character described, a body portion having upper and lower marginal wires, an elongated indentation formed in said body rtion, the axis of said indentation exten g at an angle with the axis ofsaid body portion, one end of said indentation terminating intermediate said mar a1 In testimony of the foregoing being my own, I have hereunto afiixed my signature this 22nd day of September, 1924.

GEORGE F. vo an'rj

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