US1570676A - Fastening for plaster terminals - Google Patents

Description

Jan. 26 ,1926. 1,570,676

E. H. JONES FASTENING FOR PLASTER TERMINALS Filed June 1922 A TTORNEYS.

Patented Jan. 26, 1926.

UNITED STATES 1,570,676 PATENT oFFic EDMUND I-I. JONES, OE MILWAUKEE, WISCONSIN, ASSIGNOR TO MILWAUKEE CORRU- GA'IING COMPANY, OF GREENFIEIJD, WISCONSIN, A CORPORATION OF WISCONSIN.

FASTENING FOR PLASTER TERMINALS.

Application filed June 24, 1922. .Serial No. 570,537.

To all whom it may concern:

Be it known that I, EDMUND H. JONES, a citizen of the United States, residing at Milwaukee, in the county of Milwaukee and State of Wisconsin, have'invented certain new and useful Improvements in Fastenings for Plaster Terminals, of which the following is a specification, reference being had to the accompanying drawing, forming a part thereof.

This invention relates more particularly to sheet metal plaster terminals such as door and window moldings or casings.

The main objects are to facilitate fastening such sheet metal moldings, casings or terminals to the wood or other supporting frame-work or foundation to which they are applied, and to prevent them from springing away from the frame-work or foundation to which they are attached and forming therewith exposed and unsightly or objectionable open joints or crevices.

It consists in the construction, arrangement and combination of parts as hereinafter particularly described and pointed out in the claims.

In the accompanying drawing like characters designate the same parts in the several figures.

Figure 1 is a perspective view of a portion of a plaster terminal consisting of a sheet metal door or window molding as ap plied to a door or window frame; Fig. 2 is a longitudinal section on the line 22, Figs. 1 and 3; Fig. 3 is a cross section on the line 33, Fig. 2; and Fig. 4: is a perspective view of the wedge or key forming the main part of the fastening.

As shown by the drawing illustrating one of various kinds of sheet metal plaster ter minals to which the fastening constituting the present invention is applicable, the plaster terminal, which is designed to take the place of the ordinary wood trim or casing, comprises an attachment plate or base 1,

formed with an overhanging bead or mold ing 2, which serves as a gage or ground, as well as a flush terminal, for applying a coating of plaster to the adjoining wall. The attachment plate or base l may consist partly of unexpanded metal and partly of expanded metal as shown, or it may consist of a plain or perforated attachment wing of various designs. It is formed at intervals adjacent the fold or bend between it and the overhanging bead or molding 2, with openlngs 3 of suflicient size to pass freely over the heads 4 of studs such as strip inclined from one end towards the other, and bent adjacent its closed end to form a lateral offset and longitudinally extended bearing/7, enabling the key to act as a wedge when driven orwforced towards its cleft end between the head l of a stud or screw and the base 1 of the terminal, and thereby tightly clamp and hold the terminal against the framework or foundation to which it is applied.

The lateral bend or offset adjacent the closed end of the wedge or key forms a shoulder which facilitates driving or forcing it into place with a chisel or similiar tool, whch can be inserted between the base 1 and overhanging bead or molding 2 of the terminal. It is thus possible to locate and apply the fastenings close to the exposed fold or bend of the terminal underneath the overhanging bead or molding 2, where they are most effective to bind and hold the terminal securely and snugly against the jamb 5 or other foundation to which the terminal is applied.

It has been customary hitherto to fasten this kind of sheet metal terminals to the casings or frame-work of doors and windows by nails driven through the attachment plates of the wings or bases of the terminals outside or clear of the overhanging beads or moldings, the space underneath the beads or moldings being inaccessible for driving nails, so that terminals so fastened at a distance from the exposed folds or bends next to the frame-work or foundation to which they are applied, have had a tendency to spring away therefrom and form therewith open joints or crevices, which are unsightly and otherwise objectionable.

In applying the fastenings, the wedges or keys 6 are preferably placed with their offset ends uppermost, so that if they become loosened from any cause, they will not fall out, of place and release the terminal, but will tend by gravity to take up any play between them and the heads 3 of the screws or studs and the base 1 of the terminal.

lhe base or attachment plate or wing 1 of the terminal is preferably slightly concaved on the back side, as shown in Fig. 3, so that when it is clamped by the wedges or keys 6 to the frame-work or foundation to which it is applied, it will tightly hug the same at the edges, particularly at the fold or bend of the overhanging head or molding 2.

Modifications in details of construction of the fastening may be made without materially affecting its mode of operation and without departure from the principle and scope of the invention as defined in the following claims.

I claim:

1. A fastening for a sheet-metal plaster terminal comprising a headed stud secured in the foundation to which the terminal is applied and adapted to project through an opening in the terminal, and a forked wedge adapted to straddle the stud and when forced under the head of the stud against the base of the terminal to clamp and hold it tightly to the foundation.

2. A fastening for a sheet metal plaster terminal having a perforated base and a molding overhanging the perforated base, comprising a headed stud adapted to be secured in the foundation to which the terminal is applied and to pass freely through an opening in the base of the terminal, and a forked sheet metal wedge adapted to be forcedarastride the stud between the protruding head thereof and the base of the termi nal.

3. The combination with a plaster terminal and foundation therefor, the latter having a headed stud protruding therefrom and through an opening in the base of said terminal, of a forked Wedge movable lengthwise on said base to straddle said stud between the head of the latter and said base to thereby clamp and hold the terminal firmly against said foundation.

In witness whereof I hereto afiix my signature.

EDMUND H. JONES.

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