US1090689A - Lath. - Google Patents

Description

G. P. ORUMBAUGH. LATH. APPLICATION FILED APR. 28, 1913.

Patented Mar. 17, 1914.

\ULLMBIA PLANOGRAPH cu. WASHINGTON. n. u.

UNITED sTA'rns GEORGE P. CRUMBAUGH, OF ST. LOUIS, MISSOURI, ASSIGNOR 0F ONE-HALF TO EDWIN W. GROVE, OF ST. LOUIS, MISSOURI.

Patented Mar. 17, 1914.

Application filed April 28, 1913. Serial No. 704,220.

To all whom it may-concern Be it known that I, GEORGE P. CRUD/{- BAUGH, a citizen of the United States, residing at St. Louis, in the State of Missouri, have invented new and useful Improvements in Laths, of which the following is a specification.

This invention relates to a lath, wall covering or key base adapted to replace the ordinary wood lath and plaster covering for walls and embodies the formation of a number of air cells and elongated grooves or channels arranged in alternation to provide a novel form of key base for walls to receive and positively hold a plaster covering of any desired nature. The members of the improved lath, wall covering or key base are held in desired relative positions by wires threaded therethrough at intervals in planes at an angle to the grooves or channels. The elements or members of the improved lath, wall covering or key base comprise essentially a series of corrugated strips reinforced by layers or laminae in superimposed relation and secured to each other, the several elements or members being disposed in edgewise relation to each other so that the edges will be exposed to receive a plaster covering, the elements, members or components providing exposed openings into which the plaster covering is forced or pressed when applied, and between these exposed openings the longitudinal channels or grooves are located and also receive the plaster covering, said channels or grooves causing ribs to be formed at regular intervals at the rear portion of the plaster covering which operate to'sustain the latter in adhering association with the lath or key base. The plaster is also secured in and around the wires threaded through the lath, and after the latter is secured in applied position to the studding, the plaster covering will be maintained in place though the material of which the. lath or key base is composed may rot away.

In the drawing :-Figure 1 is a perspective View of a portion of a wall support illustrated as being partially covered by the improved lath, wall covering or key base embodying the features of the invention; Fig. 2 is an enlarged front elevation of a portion of one of the laths or key base devlces; Fig. 3 is a transverse vertical section taken in the plane of the line 3-3, Fig. 2.

The numeral 5 designates studding of the usual form or any other supporting means that may be embodied in a wall structure, and the improved lath, wall covering or key base essentially comprises a cellular member 6 and a channeled or grooved member 7, parts of which contribute to the formation of each other, or a portion of the said groove 7 being comprised in the formation of the member 6, the members 6 and 7 being arranged in alternation and providing exteriorly exposed openings in regular sequence, so that the lath as a whole is cellular. To maintain the members 6 and 7 in their desired position relatively to each other, wires 8 are threaded therethrough and bent to follow the various angles of the said members, as clearly shown by Fig. 3. .The improved lath, key base or wall covering as thus constructed is made in suitable lengths and widths and applied to the studding 5 in,such manner as to produce break joints or to have the joints at the ends of contiguous laths or key bases come over an intermediate portion of an adjacent lath, and after the laths or key bases are thus arranged, they are preferably secured to the studding or other supporting devices 5 by metal strips 9 which are nailed over the laths or key bases at intervals and cover the joints between the contiguous ends of the latter. A plaster covering is applied to the laths as thus constructed in the manner shown by Fig. 3 at 10, the plaster being pressed into the exposed openings of the cells and also into the channels or grooves 7 and in and around the exposed portions of the wires 8 to thereby produce a multiplicity of keys or securing means for the plaster covering to prevent the latter from readily separating or falling away from the improved lath or key base. The plaster is pressed into the channels or grooves 7 to produce ribs, as at 11, which extend longitudinally over the plaster covering as an entirety and not only reinforce or strengthen the plaster covering, but operate as a holding means for the said plaster covering, though the material of which the improved lath or key base is formed may rot away or become destroyed, and in which case the wires 8 will remainintact and with the ribs 11 of plasterwill-preserve a wall of a firm and reliable character, particularly after the metal securing stripsf) have been applied over the laths or key bases in the manner hereinbefore specified.

Specifically the members 6 consist of corrugated strips 12 of suitable material secured to straight strips 13 by any suitable waterproof cement or glue, and secured thereto are intermediately bent angular strips or connectors 14 arranged in reverse positions so as to alternately open at the front and back of the lath or key base, the strips 14 being additional to the strips 13 in the production of a portion of the connectors and the strips 13 being continuous or intermediately bent to produce the remaining portion of the connectors. The connectors 14 provide means for positively securing the members in associated relation, the said members following the angular position of the main components of the connectors, as clearly shown by Fig. 3, and the wires 8 are threaded through the members and bent in curved planes at the front and rear over the angles of the connectors, as shown by Fig. 3. By having the members with their exposed openings alternately projected upwardly and downwardly at the front or exposed side of the complete lath or key base covering, it will be seen that the plaster which ispressed into the openings will be locked or keyed at corresponding angles and will resist weight strain and displacement in-all directions, and any tendency to cracking or checking will be reduced to a minimum and, in fact, will be absolutely prevented. It will also be seen A 7 that the components orelements of the membersare arranged in sidewise relation and likewise the channeled or grooved members are similarly disposed relatively the members with material advantage in resisting weight strain and in producing a uniformly strong covering for a wall upon which to apply the plaster. The plaster may be applied either as a single finishing coating to the improved lath or key base covering, or a concrete plaster may be first applied and then a finishing coating afterward disposed on the concrete plaster. After the laths have been made in suitable lengths as may be determined, they are dipped or coated with a waterproofing varnish or other material which also adds to the strength of the laths, and furthermore, the laths may be treated with any well known fireproofing material.

The improved lath will be found exceptionally advantageous in its use upon board partitions for receiving plaster where it is impracticable to apply the ordinary laths,

and furthermore, in reduced spaces or corners of closets and hallways of irregular form where it'is frequentlyimpracticable to apply the-ordinary lath, the improved lath will be found readily applicable and efficient in its serviceas a positive holding means for a plaster coating. It is also proposed to use the improved lath on rounded corners and as a plaster support on composite pillars or columns, and it will be understood that changes in the proportions, dimensions and minor details may be resorted to to accommodate such applications. Furthermore, the corrugations may be varied as to their dimensions and the material employed in making the lath may be either paper, stiffened cloth or a combination of paper and wood strips, or any other material applicablefor the purpose.

What is claimed is z- 1. A lath or key base comprising distinct pairs of corrugated members, the two members'of each pair being arranged at angles to each other and having side edges thereof exposed to form margins or distinct openings, and channelmembers forming unbroken longitudinal grooves and disposed between and in alternaterelation with each of the corrugated members to receive the plaster covering. 7

2. A lath or key base comprising distinct pairs of corrugated members, the two members of each pair being atangles to each other and forming openings ,therebetween, and angular connectors arranged in alter nation with each of the corrugated members and providing straight unbroken channels between the said members for receiving 'portions of a plastercovering.

3. A lath or key baseco'mprising distinct pairs of corrugated members, the two mem bers of each pair beingdisposed atan angle to each other and having a plurality of opena ings produced therebetween and exposed at the edges thereofrand channeled members arranged in alternation relatively with each of the corrugated members and having unbrokenstraight channels of V-formbetween the said corrugated members for receiving portions of a plaster covering.

4. A lath or 'key'base comprising alternately arrangedcorrugated and channeled members, the corrugated membersbeing disposed in pairs at angles relatively to each other to provide alternate downwardly and upwardly exposedopenings, and the channeled members also disposed at an angle relatively toeach other and alternately opening to the front and to the rear and serving as connectors for the -corrugated members. r p 5. 'A lath or key base comprising alternately arranged corrugated and channeled members, the corrugated members being dis- In testimony whereof I have hereunto set my hand 1n presence of two subscribing wltl0 nesses".

GEORGE P. CRUMBAUGH.

Witnesses:

H. H. MOCULLY, F. N. HAMMERS.

copies of this patent may be obtained for five cents each, by addressing the Gommlusioner of Patent. Washington, D. G.

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