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16,540 · Ewen · "Framing Window Prism Lights by Under-cutting the Corners and Depositing Metal therein" · Page 2 Home  > Prism Glass  > Patent Index  > Page 2

16,540: 2 of 3

2 Nº 16,540.—A.D. 1897.   Ewen's Framing Window Prism Lights by Under-cutting the Corners, &c. the electro-glazing process. While this method is applicable to any sort of glass or tile sections, intended to be united into a plate, it is particularly applicable to prismatic lights and is intended by me particularly for that purpose.     I have illustrated prism lights rectangular in cross-section, but it is evident that my invention is equally applicable to various shapes of prism lights. The squares here shown as cut out or formed at the corners of the prism lights may be of any desired size, but probably ought to be much smaller than indicated in the proportions of the drawing. Moreover, the solder is shown in an excessive quantity. It need not extend beyond the surface of the body of the prism lights on either side. When the parts are all laid securely on a table, it will not of course form in any considerable quantity on the plain sides of the prisms, and if it so forms there, it can be removed without danger to the plate so as to leave that surface smooth and plain. By leaving this aperture or cavity between the corners of the prism lights and about the members of the grid, net or frame, there is room for the introduction of solder in the indentations, resulting in the formation of a mass at this point which will hold the parts together without projecting on either side of the surface of the body of the prism lights. I have shown indentations F but of course projections could be employed. The main point is that this mass of material or solder secures a hold on the prism lights between the two opposite surface of each of such lights.     In Figure 2 I have shown the mass of solder as not even covering the outer edges of the members of the grid, while in Figure 3 I have shown this mass as covering such outer edges and extending over onto the surfaces of the prism light bodies. In some cases, of course there would be some solder on the surfaces of the grid members, but in most cases this would be very slight.     The mass of material to be deposited at the corners may be placed there in any desired manner and the indentation may be of any desired shape or thickness, indeed in some instances a roughening of the surface of the edge where the corner has been cut off will be sufficient.     Having now particularly described and ascertained the nature of said invention and in what manner the same is to be performed, I declare that what I claim is:—     1. A prism plate comprising a series of prism lights, a net-like frame in the meshes of which the prism lights lie, said prism lights reduced and indented at the corners of such meshes, a mass of solder about the corners of the meshes and filling the space between the same and the lights and in the indentations, and a mass of electrically deposited metal between the sections of the net and the edges of the prism lights and over the surface of such solder.     2. A prism plate comprising a series of prism lights and a series of frame pieces, said prisms reduced at the junction of the frame pieces and indented and deposited metal about the junction of the frame pieces and in such indentation, so as to hold the parts together.     3. A prism plate comprising a series of prism lights each cut off and indented at the corner and a grid or frame with a mass of material at each corner, said material binding the portions of the grid together and projecting into the indentations of the prism lights to hold them in position.     4. A prism plate consisting of prism sections or lights with reduced corners, interposed frame pieces and deposited metal at the corners, the whole shaped and proportioned as described so as to produce the result set out.         Dated this 13th day of July 1897. For the Applicant,     W. LLOYD WISE. 46 Lincoln's Inn Fields, London, W.C., Chartered Patent Agent. Redhill: Printed for Her Majesty's Stationary Office, by Malcomson & Co., Ltd.—1897