US1552748A

US1552748A - Process for the manufacture of double-glazed windows

Info

Publication number: US1552748A
Application number: US581850A
Authority: US
Inventors: Kopplinger Hermann
Original assignee: Individual
Current assignee: Individual
Priority date: 1922-08-14
Filing date: 1922-08-14
Publication date: 1925-09-08
Anticipated expiration: 1942-09-08

Description

Sept. 8, 1925. 1 H. KOPPLINGER PROCESS FOR THE mn-umcwuna 0F DOUBLE GLAZED wmnows Filed mm. 14. 1922 frame sides may Patented Sept. 8, 1925.

Hermann 'nsrrtinsan, or ienna, sesame.

PROCESS non THE MANUFACTURE OF DQUBLE-GLAZED VVINIDOHS.

Application filed August 14, 19221 Serial N0.;.5; 81,85 0.

To all whom it may concern: X. y

' Be it known that LIIERMANN KorrLINcnR, a citizen of the Republic of Austria, residing at Vienna, -Austria, have invented certain new and useful Improvements in a Process for the Manufacture of Double-Glazed indows (for which application for patent was filed in Austria, February 10,1921), of which the following is a specification.

The fact that double windows afford a sufiicient protection from the loss. of heat even when the distance between the panes is merely a few centimeters has led to the inner and outer panes being secured to one and the same section, a single casement-sash window with double glazing thus being obtained. In spite of the great advantages which such windows possess on account of the simplicity of their manufacture, theyhave not been used much, as the inner glass surf ces nno b eaned, an it pp a possible to insure an air tight oint between the two panes. It has ;therefore been necessary even in the case of double windows of iron to arrange the outeria nd the inner panes in separate sash frames, in the same way as is usual in the case of wooden sash windows. But unlike the well known construction, one of the two sash frames is not hinged to the window frame, but to the other sash frame, in order to enable both sash frames to be opened simultaneously. In double windows of this kind it appears desirable to keep the distance between the panes as small as possible. The minimum dimension is however admissible only when the space between the panes can be closed in a perfectly air tight manner, that is to say when the two sash frames fit exactly into each other.

According to the present invention, this is rendered possible by a special process of manufacture which involves the division of the sash of a double-paned window along a plane lying between the two panes.

In order to enable of effecting this division by punching or shearing, the ends of the be split before the sides are mounted to form the combined sash. The cutting of the latter into two sashes may be carried out in such manner, that only one cut is made, for instance by means of a saw, or else by punching or shearing out a small strip of material from the stock.

This process of manufacturing ensures perfect registry of the angles opposite each other at the corners; it guarantees exact registryof the two sash frames and produces sashes exactly fitting into each other even when the rolled stock used has not been straightened. if i i v A. construction of a double window made according to the invention illustratedby way of'example in the accompanying drawmg. 7 Y I Figure 1 is an elevation of the window, Figure 2 a longitudinal section. A i V Figure 3 a cross-section, and Figure 4 shows the rolled stock used for the manufacture of the two-sash frames.

1 is the sash frame for the outer glazing, and 2 the sash frame for the inner glazing. The outer sash frame 1 is connected byhinges 8 to the window frame 6, hingest to the inner sash frame. The stock used for the inner sashframe agreessubstantially with the usual frame moss-seam; The outer sash. frame has an. outwardly turned gutter-like extension 5 in which is mounted the inner edge of the outer frame. The

gutter or channel 5 is f lled with cement or the like in order to avoid leaky places liable to be formed owing to any unevenness of the rolled stocks.

The window consisting of the inner and outer sash is mounted in the outer frame 6 with a double butt. One butt is formed by the flange 7 of the outer sash frame and the outer flange 8 of the frame 6, and the other by the flange 10 of the sash frame 2 and the inner flange 9 of the frame 6. Simultaneous action of the two butts presupposes that the distance between the two.

flanges 8 and 9 is in fact identical at all polnts and agrees exactly with the distance between the two flanges 7, 10 of the outer and inner sash frames.

Such an accuracy cannot however be obtained in the present state of the rolling industry. This drawback is overcome according to the invention by making the distance between the two flanges 8, 9 of the outer. frame greater than the distance between the flanges 7, 10, and by making one of the two flanges (for instance the flange 9) of such a small thickness that it can be bent by hand or hammered down and easily brought into contact with the adjoining flange 10 of the sash frame. In orderto avoid the necessity of rolling undercut sections, the flange 9 to be bent should be preferably arranged in the same plane as .the flange 11, as shown dotted in Figure 3 of the drawing. The window frame 6 is provided at the inner side with a groove 12 with which engages the flange 10 of the lateral part of the sash frame 2, adjacent the hinge 3, for the purpose of improving the joint between the two sash frames and the frame 6, and of making impossible any unauthorized removal of the windows by removing the hinges 8.

The part above the line a-a is identical with the cross-section of the inner sash and the part below the line bb with that of the outer sash. These parts are united by the stripe of material between the lines a-a and Z -b. From the metal bars having this cross-section pieces of the length of the sashsides are out and then mounted to form a frame. If now the stripe between the lines aa and bb is cut out, for instance by means of a saw, the resulting two frames will exactly fit into one another. Separating these two frames by punching or shearing would require a rather complicated machinery, but the latter can be dispened with, if the end parts of said stripes of each side piece are cut out before the frame is mounted. Consequently, after mounting, only the middle part of the stripe is to be cut out, which operation can easily be effected by means of simple known punching or shearing machines.

What I claim is:

1. A process for the manufacture of double glazed windows with hinged outer and inner sashes, which process consists in preparing rolled fashioned metal bars, the cross-section of which represents the united cross-sections of the two sash frames placed side by side with a small strip connecting said two cross-sections, forming from these then uniting the sides to form a frame of the dimensions of the sashes to be made and thereupon cutting through the remaining joint of the two sash cross sections.

3. A method for manufacturing double glazed windows as set forth in claim 1, in which method close fitting of the sashes to the outer frame of the window is obtained by bending a thin flange provided on the outer frame of the window so as to touch closely the sash frame.

In testimony whereof I have affixed my signature.

HERMANN KOPPLINGER.