US2903739A - Glazing method and glazing nozzle - Google Patents

Description

Sept. 15, 1959 s. E. HANN GLAZING METHOD AND GLAZING NOZZLE Filed June 15, 1956 lHt fl WM MH 5 0 0 d y 6 ATTORNEYS GLAZING METHOD AND GLAZING NOZZLE Gordon E. Hana, Novelty, Ohio, assignor to The Trenico Manufacturing Company, Cieveland, Ohio, at corporation of Ohio Application June 15, M56, Serial No. 591,685

1 Claim. (Cl. lit-3.5)

This invention relates to improvements in the glazing art and more particularly, to a glazing nozzle.

One of the objects of the present invention is to provide a means for applying mastic glazing material from a bulk supply simultaneously to opposite sides of a window frame bar between adjacent window panes in uniformly contoured shape.

A further object of the present invention is to provide a new and particularly useful dispensing nozzle for aplying and forming mastic glazing material at the intersection of a window pane and a window frame bar.

A further object of the present invention is to provide a glazing nozzle which is characterized by its structural simplicity, its ease of operation, its strong and sturdy nature, its inexpensive manufacturing cost, and its operating efficiency.

Further objects of the present invention and certain of its practical advantages, will be referred to in or will be evident from the following description of a glazing nozzle embodying the invention, the nozzle being illustrated in the accompanying drawing, in which Fig. 1 is a sectional view through a window pane and its associated window frame, and a side elevational view of a mastic material dispenser for applying and forming mastic glazing material at the intersection of such window pane and such window frame;

Fig. 2 is an enlarged horizontal sectional view on the line 22 of Fig. 1, showing the material dispensing nozzle;

Fig. 3 is a bottom plan view of the nozzle removed from the window frame and on a much larger scale;

Fig. 4 is a transverse sectional view, on the line 4-4 of Fig. 2, showing the window frame bar and the two window frames on opposite sides thereof, before the glazing material has been applied;

Fig. 5 is a transverse sectional view, on the line 5-5 of Fig. 2, after the mastic glazing material has been applied; and

Fig. 6 is a sectional view, similar to Fig. 5, but after a protective cover has been pressed over the mastic material.

Before the invention here illustrated is specifically described, it is to be understood that the invention here involved is not limited to the structural details or the arrangement of parts or the method details here disclosed, as glazing nozzles embodying the present invention may take various forms. It also is to be understood that the phraseology or terminology herein employed is for purposes of description and not of limitation, as the scope of the present invention is denoted by the appended claim.

In the drawings, a portion of a conventional window and window frame structure is shown, with the portion illustrated consisting of one of the cross bars 11 of the window frame and two window panes 12 and 14 in straddling and abutting relationship to opposite parallel surfaces lla and 11b of the bar, with the panes 12 and 14 being generally mutually coplanar and being perpendicular to the side surfaces 11a, 11b to form corners therewith atom in the manner shown in Fig. 4. The bar surfaces 11a, 11b and the top surface 11c protrude upwardly out of the plane of the window panes 12 and 14, as shown in Fig. 4. In the glazing operation, mastic material, in the form of any suitable caulking compound, is pushed into these corners, as in the conventional window construction, to form the completed assembly.

A mastic material dispenser 24 here shown as in the form of a caulking gun, has a bulk supply of mastic glazing material and is adapted to feed the material out in a uniform flow. The illustrated dispenser 20 has a pivotally mounted trigger 21 for advancing, or moving toward the left in Figs. 1 and 2, an operating piston rod 22 by a pawl and ratchet drive to thereby dispense mastic material in bulk supply from the cylinder 23, the mastic material in such bulk supply being contained, if desired, in an insert cartridge of conventional type.

Mounted on the forward end of the dispenser 20 is a nozzle 39 for applying and forming the mastic material in straddling relationship on the window frame bar 11 and the window panes 12 and 14 as such nozzle travels along the bar in the direction of the arrows in Figs. 1 and 2, the glazing material taking the form shown in Fig. 5. As shown in Figs. 2 and 3, the nozzle 30 is of channel shape for receiving and sliding along the bar 11, with a tube 32 brazed or otherwise secured thereto and inclined with respect to the direction of nozzle travel along the bar 11. Preferably and as here shown, the upper end of the tube 32 is rigidly but detachably secured to the discharge end of the dispenser cylinder 23 by threads or in any other suitable manner. The mastic material is thus dispensed outwardly through the front end of cylinder 23 and through the open front end of the tube 32, into the interior of the channel shaped nozzle 30.

As best shown in Fig. 3, the nozzle 30 has a guide portion 31a and a material forming portion 31b spaced rearwardly (toward the left in Fig. 3) along the nozzle from said guide portion, with a diverging portion 310 smoothly connecting these two portions 31a and 31b. The free edges 31d and 31d of the nozzle which extend along the length thereof are coplanar and adapted to travel along and in contact with the window panes 12 and 14 in the manner shown in Figs. 1 and 2, while the nozzle guide portion 31a snugly slides over frame bar 11 during horizontal travel of the nozzle in the direction of the arrows in Figs. 1 and 2. The interior of the guide portion 31a is smaller in cross section than that of the forming portion 31b, although both portions have generally parallel planar interior surfaces respectively shown as 31e, Sale and 31 31 with forming portion surfaces 31 31 being laterally disposed farther from the bar surfaces 11a and 11b than the guide portion surfaces Sle, 31c. This provides a suitable space between the forming surfaces 31], 31f and top surface 31g and the top and straddling sides 11c, 11a and 11b of bar 11 for forming the mastic material into the contour shown in Fig. 5, with surfaces 35a, 35b and 35c.

A trailing, inwardly directed lip 31h is provided at the trailing end of the nozzle top surface 31g for the purpose of generally flattening the top portion 35a of the extruded or dispensed mastic material or otherwise preventing such material from bulging at or along said top portion. In addition and as here shown, the lip 31h forms a groove 35d in the top surface of the mastic material, as shown in Fig. 5.

If desired, a protective cover, Fig. 6, may be adhesively secured in straddliing relation over the mastic glazing material 35 on the window panes 12 and 14 and the intermediate window frame bar 11. This protective cover preferably is of channel form or generally U-shape in cross section, and as shown, has a fiat base 38a and generally diverging side walls 38b, 38c.

The mode of operation should be readily apparent. A workman can glaze simultaneously two window panes 12 and 14 abutting in straddling relationship a window frame bar 11, as in Fig. 4. Since the nozzle 30 is rigidly secured to the mastic material dispenser 20, the workman can use the dispenser as a handle for moving the nozzle along its direction of travel (the direction of the arrows. in Figs. 1 and 2) in the glazing operation. One hand can be placed on the hand grip and trigger 21 to control the rate of feed of the mastic material from the bulk supply in the cylinder 23, while the other hand presses downwardly upon the forward end of said cylinder so as to press the nozzle 30, and especially its lower edges 31d and 31d, firmly into engagement with the top surfaces. of window panes 12 and 14. As the nozzle moves in the direction of the arrows in Figs. 1 and 2, the guide portion 31a keeps the forming. surfaces 31 and 31f equidistant from their respective bar surfaces 11a and 1111 so that the mastic material flowing downwardly out of tube 32, Fig. 1, will be applied simultaneously to all three surfaces 11a, 11b and 110 of bar 11 in the form of top surface 35a and side surfaces 35b and 35c and thus in a uniformly contoured shape, as shown in Fig. 5. The mastic material thus will be located over the top of the bar and in both corners formed by bar surfaces 11a and 11b and window panes 12 and 14. Also, trailing lip 31h of the nozzle will form the depression 35d in the top surface of the mastic material non-complementary with the flat base 38a of the overlying protective cover. This need not necessarily take the form of a groove but may be of any non-complementary shape with respect to the cover surface to which it is to engage. Also, the non-complementary shape may be in any of the three surfaces of the mastic material (surfaces 35a, 35b or 35c) or in all three surfaces, as shown herein by comparison of the contour of the mastic material in Figs. and 6. Also, this trailing lip 31h may cause any excess material to fiow down the side surfaces 35b and 350 if so desired. This depends, as will be readily understood, upon the relative location between lip 31/2 and forming surfaces 31 and 31 Then, the protective cover, if used, is pressed over the mastic material to protect the glazing. It will adhesively adhere to the mastic material for either or both of two reasons: (1) the tacky nature of the mastic material and/or (2) the non-complementary shape of the material with respect to the cover before the cover is pressed thereon and the deformable nature of this material. Preferably and as shown, this cover extends all the way down to the top surface of the window panes 12 and 14 to pro tect the mastic material from weathering, from erosion and from chipping so that it will have a long wear life. Although the mastic material may be utilized to hold the protective cover resiliently down in place against the window panes by suction and adhesion, screws are preferably used for the holding of said protective cover, the screws being anchored, of course, in the underlying cross bar. The cover may be formed of any suitable metal or plastic material providing the desired functions. It should be noted that the sides 38b and 38c of the cover slope downwardly away from the top 38a so that rain water, etc. will quickly run off.

Alternative constructions readily suggest themselves as being within the scope of the present invention. First, non-complementary surface shape 35a' in Fig. 5 may take the form of a groove or any other surface shape noncomplementary with respect to the cover portion with which it engages and may be located in any one or all of the surfaces 35a, 35b and 350, Fig. 5. Location in surface 35a is preferred, as there will be an equalized adhesion action pulling the cover symmetrically down against the window panes 12 and 13. Second, although the invention is disclosed herein for glazing in straddling relationship with respect to a window frame bar 11, Fig. 5, it should be readily apparent that the principles could be used in glazing only a single corner formed by the edge of a single window pane and a window frame member, such as found on one side of the complete window assembly with the peripheral surface of the glazing material shown by the dotted line A in Fig. 5. This invention includes the method of forming such surface A and the nozzle for forming said surface. Of course, then in nozzle 30, the surfaces 31a and 31 would not be needed and surface 31g may be lowered to contact the top surface of the window frame member.

Various changes in details and arrangement of nozzle parts can be made by one skilled in the art without de parting from either the spirit of this invention or the scope of the appended claim.

What I claim is:

A nozzle for applying and forming mastic glazing material. in straddling relationship to a window frame bar as it travels along said bar, wherein said bar has abutting planar window panes With said bar protruding out of said plane, said nozzle being of channel shape for receiving and sliding over said bar, said nozzle having a guide portion adapted to snugly fit and slide over said bar, a mastic material forming portion spaced rearwardly along the nozzle from said guide portion, a material feeding tube in communication with said forming portion and inclined with respect to the direction of nozzle travel so that said tube may be used as a handle for moving said nozzle along its direction of travel, said guide portion having generally parallel planar surfaces, and said forming portion having surfaces disposed laterally outwardly from and above the surfaces on said guide portion to provide a space for material forming between said forming surfaces and the top and straddled sides of said bar, said nozzle having a trailing lip for forming a groove in the mastic material over said bar most remote from said panes so that a protective cover applied to said material will be adhesively secured thereto.

References Cited in the file of this patent UNITED STATES PATENTS

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