US1985193A - Plaster base - Google Patents

Description

Patented Dec. 18, 1934 PATENT l walter F. senulz, Youngstown, 01110;-assignbr-tof y h lL fl'rnscon Steel Company-Youngstownyohio,"a corporation of Michigan y Animation August "it, 19,33, y ',s'erjia1 No.,` stava/fittiY z claims. ,lotsa-11th The .present invcntionrelates ,to plaster bases'A of sheet metal, andthe-object lis to provide astructure which imay be made of light gauge material, is extremely cheap to manufacture, can be applie'dtothe 'supports with ease and expedition, and when in place constitutes a carrier or base for the plaster which will most effectively support the same, and will eliminate discoloration due to breathing and dusting that is common with wood laths. in a great saving of plaster due to the character of the structure and its mounting on the studding or other supports, and in addition effecting a tremendous saving in dead weight load wherever employed, but especially in tall buildings.

In the accompanying drawing:

Figure 1 is a face view of a portion of a wall showing the plaster base in place.

Figure 2 is a vertical cross sectional view illustrating the complete wall with the plaster in place. f

Figure 3 is a detail rear elevation to show outstanding fianges around the slots.

Figure 4 is a detail view showing the means for securing the lath to metal supports.

In the embodiment disclosed spaced studs 3 are provided which may be of the usual form and either of wood or metal, the plaster base being applicable to either. The base is in the form of a relatively light sheet of metal 4 which is provided with a plurality of intermediate longitudinal ribs 5, these ribs being of V-shape in cross section. One margin of the sheet is provided with a rearwardly turned flange 6, the cpposite margin also has a rearwardly turned flange 7 having an outstanding edge portion 8, providing a groove 9 along said edge. The portions of the sheet between the ribs 5 and between said ribs and flanges 6 and 7 are provided with sets of longitudinally disposed slots 10, the deformation of the material in the production of such slots being rearwardly disposed, providing flanges 1l around the edges of said slots. These flanges, as will be clear by reference to Figure 2 are of less depth than the depth of the ribs 5 and anges 6 and 7 and lie between the same. The slots are arranged in rows, the slots of each row being located end-to-end, and staggered with relation to the adjacent rows. More than that, as clearly shown in Figure 1, the slots on opposite sides of a rib are located side by side, thereby providing convenient means for passing fastening wires, as 12, through the same when the sheets are secured by said means. It will be understood that any suitable means however may be employed Furthermore it results n .r It will also be noted that the V-shaped formation and that wires or like-fasteners are particularly useful Wherfh-e Stud 01? .SUDPQS'N Qf metal.- In ,the application this structure tothe supports E3. the sheets are arrngedfhlzomlly, With the edsesf "the ,ribs against fthsasuppflrts; as shown in Figure 2. As a consequence it will be evident that the main body of the plaster base is spaced `from the supports or studs and that as a consequence the slots 10 have their rear sides entirely open and not obstructed by the studs.

of the ribs provides `in the outer `side of the sheet correspondingly formed channels 13 and that these channelsare relatively narrow. The ribs extending transversely of the studs constitute effective reenforcements or stiffening agents for the intermediate portions of the sheet, while the marginal flanges 6 and 7 act as stiffening means for the edges of the sheet. It will also be noted by reference to Figure 2 that the flange 6L of one sheet will engage in the marginal groove 9 of an adjacent sheet, so that the parts are interlocked.

When the complete plaster base for a wall is thus assembled and secured, it provides a smooth outer surface without obstruction to the sweep of the plastering tools and consequently a thin sheet of plaster can be easily applied. When sov applied by reason of the V-formation of the channels whch flare outwardly toward the exposed surface, these channels will readily receive the plaster and be substantially lled with the same. As they are narrow, however, they do not require a large amount of plaster to fill them. The plaster will pass through the narrow slots l0 and form keys over and around the flanges 11 made by the deformation of the metal in producing said slots.

The consequence is that a wall structure is provided in which the plaster is smooth and even and is not materially subject to cracking or dislodgment. At the same time the plaster coat is thin but it is effectively keyed to the base and is further held, especially while green, against slipping by the ribs formed thereon by the plaster entering the channels 13. The plaster base moreover is spaced from the supports or studding except for narrow lines of contact due also to the form of the ribs 5. It will be obvious that the base can be readily and cheaply manufactured and easily applied, and that the completed structure will be light in weight, thus materially decreasing the deadl load that must be carried by the other structural parts of the building.

From the foregoing, it is thought that the construction, operation and many advantages of the herein described invention will be apparent to those skilled in the art without further description, and it Will be understood that various changes in the size, shape, proportion and minor details of construction may be resorted to without departing from the spirit or sacrificing any of the advantages of the invention.

1. A vwall structure including spaced lsupports and a plaster base on said supports, said base including an elongated metal sheet extending across a plurality of the supports and having spaced ribs formed therein, said ribs being of substantially V-form in cross section and disposed across the supports with their closed edges bearing against the same, the portions of the sheets between the ribs being thereby spaced from the supports and having substantially smooth outer faces inter-v rupted by substantially V-shaped channels'formed by the'ribs and said portions being each provided with rearwardly punched slots that are disposed longitudinally of the ribsand channels, and transversely of the supports, said slots being arranged in rows vend to end parallel with the channels, a plurality of 'said rows being located between adtened and the portions of the sheet between the, ribs being fiat and normally lying in substantially a common plane and being spaced by the ribs from said supports, said ribs forming spaced subl stantially parallel openV-shaped channels in the outer plaster-receiving face of the sheet, and said portions of the sheet between the channels having aplurality of rows of substantiallyparallel elongated plaster key-receiving slots punched rearwardly through the sheet between adjacent ribs, the slots being substantially parallel to the channels and the deformed material' around theslots forming rearwardly extending flanges between and parallel to the ribs andr materiallyof less depth than the same.

WLTER sc-HLZ.-

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