US 2723427 A
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Description (OCR text may contain errors)
Nov. 15, 1955 w. s. BOBEL MULTIPLE GLAZED WINDOW' LAZING CLIP Filed Dec. 4, 1952 I I unin INVENTOR William S. Bob ei BY (040 2 &WCW
United States Patent O MULTIPLE GLAZED WINDOW GLAZING CLIP William S. Bobel, New Kensington, Pa., assignor to Pittsburgl Plate Glass Company, a corporation of Pennsylvania Application December 4, 1952, Serial No. 324,089
3 Claims. (Cl. 20-56.4)
This invention relates to multiple pane window constructures, and more particularly to improved glazing clips for mountng multiple glazed units in Wood or metal window frames or sash. i
Multiple glazed units comprise two or' more panels of' glass spaced one from the` other to provide an insulating air film between adjacent panes. 'The panes are generally spaced from each: other by metal spacer devices. The panes are generally held against the spacer by means of continuous U-shaped metal channel members engaging the glass, and are held in window frames by glazing stops or by molded resilient members which seal the margins of the panes to a frame. Multiple glazed window units are often mounted in window frames in a plastic glazing or sealing compound and then shipped or transported from the factory or assembly point to a building under Construction. If the unit shifts position inits frame during transportation, plastic glazing compound is displaced, and remounting of the unit in the frame may be required. The present invention rlates to improved resilient "metal glazing clips used in conjunction with continuous channel members to position 'Another object'of'this `inven`tion is to provide 'a glazing clip for multiple glazed window units which avoids displacement of plastic glazing compounds by minimizing possible shifting of a window unit positioned in such glazing compound in a window frame.
A further object of this invention is to provide a glazing clip for multiple glazed window units which will effectively position and secure such a window unit between a window frame or sash shoulder and a retaining stop.
Other objects and advantages of the invention will become more apparent from the following detailed description of preferred embodiments thereof.
In the drawings,
Figure 1 is a perspective view of a preferred form of glazing clip embodying the principles of my nvention.
Figure 2 is a vertical sectional View, partly cut away, of a multiple glazed window unit mounted in a window frame and provided with the glazing clip shown in Figure 1.
Figure 3 is a perspective view of a modified form of glazing clip.
Figure 4 is a vertical sectional view, partly cut away, of a multiple glazed window unit mounted in a sash and provided with the glazing clip illustrated in Figure 3.
Figure 5 is a diagrammatic elevational view, partly cut away, of a multiple glazed window unit of the type shown in Figure 2 and showing the unit positioned in a window frame having the stop and glazing compound omitted in order to show normal positioning of the unit supports and glazing clips.
2,723,427 Patented Nov. 15, 1955 Referring to the drawings, a multiple glazed window unit is designated by the numeral 10, and includes two panes of glass 11 and 12 separated by a hollow spacer device 13 and held together as a unit by a metal channel member or members 14 engaging the magnal portion of each pane. The channel member 14 may be formed of stainless steel of twelve to twenty thousandths of an inch in thickness. A resilient glazing clip 15 is provided to hold the multiple glazed unit 10 in proper position in the window frame 16 by spacing the outer surface of pane 11 from the shoulder of the frame 16 and by spacing the outer suface of pane 12 from the glazing stop or strip 17 and by spacing the edge of the unit 10 from the frame 16. The glazing stop 17 may be Secured to the frame 16 by screws 18. The multiple glazed unit 10 is supported in the frame 16 by having the bottom channel member 14 rest on setting blocks 19 which in turn rest on the frame 16. For a window of average size, two setting blocks 19 are sufiicient, the blocks being positioned inward from the corners of the unit so that the spacing between blocks is about one-half the width of the unit. The setting blocks 19 may be made of Wood about one-quarter inch thick and three-quarters inch long. The illustration in Figure 5 showing the setting blocks is diagrammatic and not drawn to scale. The space between the sides of the window unit 10 and the shoulder of frame 16 and stop 17 is filled with plastic glazing compound 20, such as window putty or the like.
The glazing clip 15 may be formed of light gauge stainless steel or other suitable metal. As illustrated in Figures 1 and 2, the upper ends or legs 21 of the clip are somewhat inclined one toward the other. The base of the clip is curved with two upward humps 22 and a central downward` bulge 23. The lower corners 24 and 25 of the clip extend below the central downward bulge 23 and may or may not engage the fiat surface 26 of the frame 16. The glazing' clip 15 is preferably formed from a stainless steel strip about twelve thousandths of an inch thick, and about five-sxteenths inch wide. The lateral extent of the clip depends on the number of glass panes, spacers, and glass thickness of the multipleglazed unit to be mounted. The clip 15 is somewhat resilient and fiexible so that the upper ends of the legs 21 engage the outer surfacesof the channel 14 to hold the clips in position during mountng a unit in a frame. The humps 22, as shown in Figure 2, may engage the bottom of channel 14. The inward inclination of the legs 21 provides that the clip lower corners 24 are spaced apart further than the upper ends of the legs 21, and hence the clip serves to position the multiple glazed unit 10 midway between the shoulder of frame 16 and the frame stop strip 17.
When mountng a glazed unit 10 in a Window or sash frame, the frame 16 may be supported in a horizontal position with the shoulder of the frame facing upward. Plastic glazing compound 20 is then spread on the frame shoulder. A glazed unit 10 with glazing clips 15 applied at intervals around the channel member 14 as shown in Figure 5 is then lowered into the frame 16 until the corners 24 of the glazing clips engage the frame shoulder and support the glazed unit 10. Next 'two or more setting blocks 19 are inserted between the lower edge of glazed unit 10 and the bottom member of the window frame 16. More plastic glazing compound 20 is then spread around the marginal portions of the glazed unit and the frame stop strips 17 are positioned and secured to the window frame 16. The stop strips 17 are mounted so as to engage the glazing clips and to compress the clips laterally. This compression of the clip 15 causes the humps 22 of the clip to bulge upward into resilient contact with the channel member 14 for further establishing proper spacing and positioning of the unit with respect to the frame 16. The plastieity of the glazing compound 20` is preferably such that il will flow around the legs 21 of the clip during assembly of the unit in a frame. It will be noted that during the assernbly in horizontal position of the frame and glazed unit, the glazing clips 15 prevent the glazed unit from settlirg far enough into the frame 16 to dis` place glazing compound from the space between the unit and the frame shoulder. Likewise during transportation or other handling of the assembled rame and glazed unit, the displacement of plastic glazing compound from the space between the unit and frame is minmized. It is to be unclerstood that the described glazing clips may be used in metal sash as well as in wooden sash or other type window frames. When the assembled window is installed in a vertical position, the setting blocks 19, rather than the glazing clips 15, support the weight of the glazed unit 10 and prevent settling of the unit and displacement of glazing compound.
The modified form of glazing clips 29 shown in Figures 3 and 4 is similar to that described above except that the upper ends of the inclined legs 30 are curved outward and downward to form resilient hooks 31. The base of clip 29 has two spaced corner portions 34 and 35 separated by a raised horizontal bridge 33. The straight bridge 33 is somewhat different from the corresponding portion of the Figure l and 2 clip, and engages the edge of the channel member 14 which secures the glass panes 11 and 12 and the hollow pane spacer device 13 together as a unit. The glazing clip 29 is preferably formed from a stainless steel strip about .016 inch thick, and about one-quarter inch wide. The clip 29 is somewhat resilient and flexible enough to cause the hook ends 31 to engage the outer surfaces of the channel member 14 to hold the clips in place during mounting of a unit in a frame. The lateral thickness of the hooks 31 is such that the outer portions thereof may engage the surface of the sash shoulder and the opposing surface of stop strip 17 to position the multiple glazed unit midway in the sash frame 16. The glazing compound 39 fills the space between the outer margins of glass panes 11 and 12 and the sash shoulder and the stop strip 17. The compound 39 also surrounds the legs 30 and hooks 21 of the glazing clip 29.
It will be apparent to those skilled in the art that various modfications and variations in the nature and arrangement of the glazing clips illustrated are possible without departing from the spirit of this invention or the scope of the appended claims.
What I claim is:
l. A glazing clip for positioning a multiple glazed window unit construction in a window frame, said clip being of sheet metal and comprising a continuous bridge portion having a depending corner portion at each end of the bridge portion, said corner portions supporting said contnuous bridge portion above a plane through said corner portions, and a leg portion extending upward from each of said corner portions and inclined inwardly one leg portion toward the other leg portion, the upper portion of said leg portions being adapted to engage marginal portions of said multiple glazed window unit.
2. A glazing clip for positioning a multiple glazed window unit construction in a window frame, said clip being of resilient sheet metal and comprising a continuous bridge portion having a depending corner portion at each end of the bridge portion, said corner portions supporting said continuous bridge portion substantially above a plane through said corner portions, said continuous bridge portion being of wavy contour and including two upwardly extending humps joined by a downwardly extending bulge, and a leg portion extending upward from each of said corner portions and inclined inwardly one leg portion toward the other leg portion, the upper portion of said leg portions being adapted to engage marginal portions of said multiple glazed window unit.
3. A glazing clip for poistioning a multiple glazed window unit construction in a window frame, said clip being of resilient sheet metal and comprising a continuous substantially flat bridge portion having a depending corner portion at each end of the bridge portion, said corner portions supporting said continuous flat bridge portion above and parallel to a plane through said corner portions, a leg portion extending upward from each of said corner portions and inclined inwardly one leg portion toward the other leg portion, the upper portion of said leg portions being adapted to engage marginal portions of said multiple glazed window unit, and a downwardly extending hook-like portion at the upper end of each leg portion.
References Cited in the file of this patent UNITED STATES PATENTS