Патент USA US2020908код для вставки
Nov. '12, 1935. _ c. H. SCAMMELL 'MET-AL LATH ' I Filed Jan. 16, 1955 2,020,908‘ Patented ‘Nov. 12, 1935 2,020,908 UNITED STATES PATENT OFFICE 2,020,908 METAL LATH Charles H. ,Scammell, Forest Hills, N.‘ Y., assignor to Charles H. Scammell Company, New York, N. Y., a corporation of New York Application January 16, 1935, Serial No. 1,993 5 Claims. (Cl. 72-116) This invention relates particularly to metal lath of that type in which sheets of expanded or perfo rated metal or wire netting carry a backing sheet against which plaster or other plastic material 5 may be molded and the desired clench of the plaster secure d with a comparatively small amount of plas ter. The invention includes, also, constructions in which backing sheets are used on both sides of metallic lathing for shielding or other purposes. Such metal lath in different forms forms the subject matter of my Patents Nos. 1,210,849, 1,499,408, and 1,569,144. The object of the invention is to provide an improved metal lath in which the metallic lathing 15 shall be provided on one or both sides with a transparent and water-proof sheet, so that no additional layer of water-proof material is ie— quired and the lathing may be quickly and con veniently positioned in use, the studs or other members to which the lath is to be attached being visible through the transparent sheet or sheets, 50 that no marker on the lath is required. 25 Transparent and-water-proof materials of dif~ ferent types may be used, but preferably a ?exi ble, transparent, and water-proof sheet of cel lulose material will be used, and I have found that the material known in the trade as “Cello phane” is well adapted for such use, this material having the above qualities, and in addition the quality of not breaking up or cracking on driving nails or staples through the lath for securing it in position. For a full understanding of the invention, a description of a construction embodying the in ~vention in a preferred form, as applied in a lath for holding plaster, will now be given in connec tion with the accompanying drawing, and the adhesive 2, which may be asphalt composition, and conveniently applied by running the metallic lathing over a, roller carrying the adhesive. Other means for securing the backing sheet to the lathing may be used. 5 As shown in the drawing, the studs are visible through the, backing sheet, so that no marker is necessary, and the lath may readily and con veniently be secured in position simply by laying the sheets of lath over the studs and stapling the 10 lath to the studs, after which the plaster or other plastic material is applied. If the invention be applied in connection with sheathing having backing sheets on both sides of the metallic member, the construction is the same 15 and may be secured in position in the same way by attaching means passing through both sheets of lath. In such sheathing lath, the metallic member will not be used to hold plastic composi tion, but the inner side of the sheathing may be 20 treated in any desired manner. It will be understood that the lath may be used in connection with widely different building con structions and attached to either wood or metal supports, the transparency of the lath making it 25 excellently adapted for use in connection with metal work, on which attaching members are lia ble to be irregularly spaced, rendering it difficult. to properly apply and position non-transparent lath. 30 What is claimed is: 1. A new article of manufacture comprising metallic lathing having secured thereto‘a back ing of transparent and water-proof material. , 2. A new article of manufacture comprising 35 metallic lathing formed to anchor plastic mate invention then speci?cally pointed out in the rial between it and a plane surface in contact with such lathing, and a backing sheet of trans claims. 40 ' parent and water-proof material secured to said In the drawing: lathing. 40 Figure 1 is a face View of a portion of the , backed‘ lath applied to studs or similar furring in a wall construction; and 45 V Figure 2 is a section on the line 2 of Figure 1. Referring to the drawing, the studs iii are se cured in position in the usual way with respect to a joist H, and the floor (not shown). rI‘he metal lath consists of the expanded metal or other open mesh metallic lathing l2, and the 50 transparent and water-proof backing sheet !3, which are shown as secured to the studs by staples I, although it will be understood that any other suitable securing means may be used. The-lath ing is covered with the body of plaster or con crete mixture l 4, this being broken away to illus trate the lath construction. The backing sheet I3 is shown as secured to the metallic lathing by 3. A new article of manufacture comprising metallic lathing formed to anchor plastic mate rial between it and a plane surface in contact With such lathing, and a backing sheet of trans parent and water-proof material secured to said 45 lathing by adhesive. 4. A new article of ' manufacture comprising metallic lathing having secured thereto a back ing of transparent and water-proof cellulose ma terial, such as “Cellophane”. 50 5. A new article of manufacture comprising metallic lathing formed to anchor plastic mate rial between it and a plane surface in contact with such lathing and a ?exible, transparent and water-proof backing sheet of cellulose material, 55 such as “Cellophane”, secured to said lathing. CHARLESH. SCAMMELL.