US 1345792 A
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Description (OCR text may contain errors)
J. A. McAVOY.
IMITATION BEVELED GLASS PANEL.
CT. I5, 1919. 1,345,792. Pat t d uly 6 1920.
Q g ',6 i a/ g NITED STATES PATENT OFFICE.
JOHN A. MCAVOY, OF CHICAGO, ILLINOIS, ASSIGNOR TO MCAVOY MANUFACTURING COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.
Application filed. October 15, 1919.
To all whom it may concern:
Be it known that I, JOHN A. MeAvor, a citizen of the United States, and a resident of Chicago, in the county of Cook and the State of Illinois, have invented certain new and useful Improvements in Imitation- Beveled-Glass Panels, of which the followin is a specification, reference being had to the accompanying drawings, forming a :part thereof.
T he purpose of this invention is to produce a glass panel, particularly for use as a carriage curtain window, which being of flat glass, shall nevertheless have the semblance of a panel with an ornamental bevel, either as a marginal feature or as a shoulder at a distance back from the margin. It consists in the panel shown and described, having the features for producing such semblance, as indicated in the claims.
In the drawings:
Figure 1 is a face or plan view of a diamond-shaped panel, produced according to and embodying this invention.
Fig. 2 is a section at the line, 2-9., on Fig. 1.
Fig. 3 is a face view of a panel of another form having a semblance of a beveled shoulder set back from the margin.
Fig. i is a section at the line, 4-l, on F i Fig. 5 is a face view of a panel having a semblance of a bevel at one edge only.
Fig. 6 is a section at the line, 6-6, on Fig. 5.
The drawings show a flat glass, A, of the shape desired for the carriage window panel, having in the form shown in Figs. 1 and 2, a groove a, parallel to the boundary of the panel, at a distance back therefrom at which it is desired to produce to the eye of the observer the impression of the angle of a bevel extending through the margin of the panel. In Figs. 3 and i there is shown a parallelsided flat-bottomed groove, Z), whose width is that of a beveled shoulder of which it is desired to produce the appearance or semblance, situated at a distance back from the margin of the panel.
The groove for producing the appearance of the obtuse angle of a bevel which extends Specification of Letters Patent.
Patented July 6, 1920.
Serial No. 330,918.
to the margin, is a sharp, V-shaped groove, so narrow and shallow as to amount to scarcely more than a scratch in the glass, (unavoidably exaggerated in the drawing) and which produces a line of refraction which affects the eye similarly to the obtuse angle of a real bevel.
The groove for the purpose stated as to Figs. 3 and t is not desirably deeper than necessary to produce at each side of said groove a like effect of a line of refraction, and thereby it produces upon the eye an effect not readily distinguishable from that of the two angles of a beveled shoulder.
The bottom of the groove should be fiat and smooth as the unscratched surface of the glass panel, so as not to affect the eye with any impression of special form within its area.
It is essential to the semblance of bevel that the grooves mentioned should not disclose any termination within the face of the panel. They must, therefore, either extend to and disappear at the edge of the panel, or be connected up in circuits endless within the area of the panel. Fig. 5 illustrates the endlessness resulting from the groove disappearing at the edge of the panel, the effect being to show a bevel along one edge only of the panel. The other figures show the groove endless by being connected up in circuits inclosing an area of the panel within the circuit, and defining another area outside thereof.
I claim zl. A glass panelhaving for simulating a bevel, a groove parallel to the margin and endless within the face of the panel, said groove being only of sufficient depth to cause refraction of light at the lines which it occupies.
2. A glass panel having for simulating a bevel shoulder, a parallel-sided, flat-bottom groove, endless within the area of the panel, the distance between the parallel sides of the grooves being substantially the width of the bevel to be simulated.
In testimony whereof, I have hereunto set my hand at Chicago, Illinois, this 11 day of October, 1919.
JOHN A. MOAVOY.