US2912077A

US2912077A - Metallic window structures

Info

Publication number: US2912077A
Application number: US570796A
Authority: US
Inventors: William L Walsh
Original assignee: S H POMEROY Co Inc
Current assignee: S H POMEROY Co Inc; S H POMEROY COMPANY Inc
Priority date: 1956-03-12
Filing date: 1956-03-12
Publication date: 1959-11-10
Anticipated expiration: 1976-11-10

Description

Nov. 10, 1959 Filed March 12, 1956 W. L. WALSH METALLIC WINDOW STRUCTURES 4 Liz {L if J76 a if 4 Sheets-Sheet 1 IN VEN TOR.

WILLIAM L. WALSH his BY WWEQ+M ATTORNEYS Nov. 10, 1959 w. L. WALSH 2,912,077

METALLIC WINDOW STRUCTURES Filed March 12, 1956 4 Sheets-Sheet 2 INVENTOR. WILLIAM L. WALSH ATTORNEYS Nov. 10, 1959 w. L. WALSH METALLIC WINDOW STRUCTURES 4 Sheets-Sheet 3 W Filed March 12, 1956 INVENTOR. WILLIAM L. WALSH ,AAW'W ATTORNEYS.

his

Nov. 10, 1959 w. L. WALSH 2,912,077

METALLIC wmnow STRUCTURES Filed March 12, 1956 4 Sheets-Sheet 4 a 1% Z5 22? ii *22a 2; f6 f7 6! FIG. 6. a

FIG. 8.

INVENTOR. WILLIAM L. WALSH BY WWQwM Is A TTORNEYS.

United States Patent ()fiice 2,912,077 Patented Nov. 10, 1959 METALLIC WINDOW STRUCTURES William L. Walsh, Bronx, N. Y., assignor to S. H. Pomeroy Company, Inc., New York, N.Y., a corporation of New York Application March 12, 1956, Serial No. 570,796

8 Claims. (Cl. 189-65) This invention relates to window structures and embodies, more particularly, improved components for providing a weather tight assembly for metallic window structures.

For many years, metallic window structures have been standard in building operations involving large structures such as office buildings and the like, the material of these metallic window units usually being steel. Recent- 1y, lighter metals such as aluminum have been found to be particularly well suited to buildingstructures and window structures have been made out of such materials. For example, in copending application Serial No. 436,- 191, filed by Herman C. Knebel, a metallic window structure is disclosed which is particularly susceptible of being manufactured from the lightermetals such as aluminum.

In the above discussedmetallic window structures, the problem of providing weather resistant sealing elements between the sash and jamb has presented some difiiculty.

This is due primarily to the fact that such elements must weatherproof the window structure and, at the same time, not impede sliding of the sash in double hung structures. It has been found in some instances that these two qualities are somewhat incompatible, good weather sealing rendering the window difiicult to operate. Accordingly, it is an object of the present invention to provide structure serving to weatherproof 'metallic windows.

It is another object of the invention to provide a weather strip sealer forming an effective seal with any selected surface it may engage.

It is still another object of the invention to provide a ribbed weather strip having a configuration localizing damage and providing an efiective seal when encountering resilient weather strip sealer or other surfaces.

It is yet a further object of the invention to provide weather sealer elements for preventing entrance of dirt and moisture into a jamb pocket used to house a spring balance.

These and further objects of the invention are accomplished by selectively disposing at sliding points of contact between metal window sash and supporting jamb structure novel weather strip in engagement with resilient weather strip sealer. The former element is formed of thin flexible metal and provided with longitudinal'ridges which cooperate with the resilient Weather strip sealer. In addition, the rigid weather strip may be employed in other applications such as in the head and sill structure to render the entire double hung window weather tight.

A further feature of the invention resides in the use of a pocket sealer mounted to cooperate withthe resilient weather strip sealer for substantially enclosing a pocket containing a spring balance. The pocket sealer is formed so that the sash flanges either displace it, in the event it is in the form of pile, or fail to engage it due to its configuration, in the event it is formed of a plastic strip material.

Metallic windows provided with the above weather sealing elements provide substantial protection against air leakage, maintain their spring balances free of dirt and moisture and yet operate with an ease not achieved heretofore.

These and further objects and advantages of the invention will be more readily understood when the following description is read in connection with the accompanying drawings in which:

Figure 1 is a plan view of a metallic window structure formed by a conventional double hung window;

Figure 2 is a partial longitudinal section, greatly enlarged, taken on the view line 22 of Figure 1 looking in the direction of the arrows;

Figure 3 is a partial longitudinal section, greatly enlarged, taken on the view line 3--3 of Figure 1 looking in the direction of the arrows;

Figure 4 is a partial transverse cross section, greatly enlarged, taken on the view line 44 looking in the direction of the arrows;

Figure 5 is a partial transverse cross section, greatly enlarged, taken on the view line 5-5 looking in the direction of the arrows;

Figure 6 is a fragmentary view, greatly enlarged, illustrating the cooperation between weather strip and weather strip sealer constructed in accordance with the present invention;

Figure 7 is a perspective view illustrating the weather strip shown in Figure 6; and

Figure 8 is a transverse section similar to Figure 4' showing a modified form of pocket sealer that may be employed in accordance with the principles of the present invention.

Referring to an illustrative embodiment of the invention with particular reference to Figure 1, an upper sash 10 and a'lower sash 11 are slidably mounted in conventional jamb structure formed by a head 12, a sill 13 and

jambs

14 and 15 joining the ends thereof. The foregoing structure may be mounted in masonry or other building material in any conventional manner.

As shown in Figures 4 and 5, the jamb 14 is formed of side plates 16 and 17, joined by a U-shaped support 18, an inner plate 19 and an angled outer plate 20 all formed integrally, for example, by extruding aluminum in a conventional manner. The inner extremities of the inner and outer plates 19 and 20 respectively carry channels 21 and 22 defined by inwardly extending

flanges

23 and 24. Shoulders 23a and 24a on the

flanges

23 and 24 extend into the channels 21 and 22 to retain elongated pieces of weather strip sealer 25, as will be apparent from Figure 6.

The weather strip sealer 25, best shown in Figure 6, is formed of a resilient material such, for example, as natural or synthetic rubber, a nylon type plastic, a high impact styrene or polyethylene, and comprises a front section 26 having a substantially flat face 27, legs 28 and 29 extending from the section 26 to form an interior recess 30. Notches 31 are provided on the outer surfaces of the legs 28 and 29, portions 32 between each lip of the notches 31 and the face 27 and the rear edges of the legs 28 and 29 being tapered. The rear lips of the notches 3-1 engage the shoulders 23a and 24a to retain the sealer 25 in the channels 21 and 22.

In the central plane of the jamb a parting bead 34 'is supported by a U-shaped snap bracket 35 cooperating with ridges 18a on the U-shaped support 18, which joins the side plates 16 and 17. Integral with the bracket 35 are

pocket closure plates

36 and 37 extending obliquely to the transverse plane of the inner extremity of the parting bead 35 and then extending parallel to the side plates 16 and 17 to lie in spaced relation to the adjacent edges of the inner and outer plates 19 and 20, respectively. I

On the parallel portion of each of the

plates

36 and 37 are respectively formed

channels

38 and 39 in which are secured pocket sealer strips 40. This construction minimizes the entrance of dirt and moisture into

pockets

41 and 42 which are formed in the jamb 1'4 to receive spring balances 43 and 44 (Figure It will be observed that :the main body of the pocket sealers 40 abut the

plates

36 and 37, a thinner and flexible tapered portion 45 on each sealer 40 extending obliquely to a .position adjacent to the weather strip sealer 25 from a pro trusion 46 found on the ends of the

plates

36 and 37.

A sash balance connector 47 joins the spring balance 43 to the sash 10., as shown in Figure -4. Therefore, when the sash is raised, the connector 47 will displace a portion 45a of the tapered-section'45 of the pocket sealer '40, as clearly indicated :in Figure 4. However, since the sash connectors 47 do not travel along the upper section of the

pockets

41 and 42, the pocket sealer 40 may be formed to enclose the upper sections of the pockets to an even greater extent as illustrated in Figure 5. In other words, since the balance connectors 47 are joined to the lower edges of the sashes 10 and 11, they will not interfere with modified pocket sealers 40a in the upper portions of the

jambs

14 and 15. Accordingly, the pocket sealer 4011, similar in most respects to the sealer 40, may be employed in these instances, the sealer 40a including a tapering portion 45a carrying an angled finger 45b further enclosing its corresponding pocket and minimizing the entrance of moisture and dirt.

It will be apparent that the assembly constituted by the parting bead 34, the bracket 35 and the

plates

36 and 37 may be snapped into position on the support 18 to form the substantially enclosed parallel channels or pockets 41 and 42 within which are positioned the spring balances '43 and 44, the pocket sealers '40 and 40a assisting in enclosing these channels.

Further examining the parting bead 34, it will be observed that it is formed in a generally T-shaped section to provide channels 48 and 49 (Figure 4,) formed with inwardly extending flanges 50 and 51, respectively, which receive elongated pieces of the weather strip sealer 25.

The sash structure adapted to be used in connection with the above-described jamb structure is clearly illustrated in Figures 4 and 5 and includes the upper and lower sashes 10 and 11. The sides of each of the sashes l0 and 11 include recesses 52 and 53 respectively formed with

shoulders

54 and 55, flanges 56 and 57 extending therefrom parallel to the planes defined by the outer vertical edges of the sashes 10 and 11 but slightly removed towards the central vertical sash plane.

Secured in the recesses 52 and 53 are elongated pieces of weather strip 58, best illustrated in Figure 7, formed of a thin strip of flexible and springy metal such, for example, as stainless steel. Preferably, one edge of the strip is bent back on itself to form a hem 59 while the other side of the strip is bent to form an obtusely angled section '60. A further bend in the strip provides for an obliquely extending section 61, the sections '60 and 61 cooperating with the recesses 52 and 53 and the

shoulders

54 and 55 to anchor the weather strip 58 in the sashes 10 and 11. A plurality of longitudinally extending ridges 62 are formed in the major surface of the weather strip 58, as clearly shown in Figure 7. An exemplary strip 58 may be formed of type 18-8 stainless steel sheet on the order of .005 inch thick, the ridges 62 being roll formed and having a height of .008 inch with a V inch width at the strip surface.

The number of ridges 62 provided is dependent upon the function that the strip 58 must perform. These ridges 62 serve several purposes since they provide effective lines of contact with cooperating surfaces, localize any damage in the strip to a very small area and add rigidity to the strip. Thus, without the ridges 62, damage to the main body of the strip near its angled section 60 results in bending of the major strip surface for a substantial portion of the distance to the hem 59 due to the thinness and flexibility of the element. In addition, the line contact afiorded by the ridges "62 greatly reduces sliding friction between the strip 58 and its cooperating surfaces, this feature making possible an effectively sealed double hung window that may be easily raised and lowered. Finally, the ridges 62 are 'efiec'tive to add rigidity to the strip 58 so that it will not .p rovide a wavelike surface but will insure an almost completely linear configuration.

As clearly show-n Figure 6, the weather strip 58, due to the obtuse angle between the main body of the strip 58 and the section 60, is secured at one edge by the section 60 and the recess 52 or 53, such arrangement providing unimpaired movement of the other edge of the strip and biasing'oif the ridges 62 against the substantially flat face 27 of the weather strip sealer 25, the ridges 62 providing a pair of line contacts therebetween in order to effect an efficient weather resistant seal between the sash and jamb'st-ructure. It will be apparent from Figure 6 that since the weather strip 58 extends beyond the sealer 25, small differences in the sizes of the sashes 10 and 11 and the -jamb structure will not interfere with the sealing action. If desired, the ridges 58 may be more closely spaced or the face 27 :laterally extended, or both, in order to insure that two or more of the ridges 62 engage the 'sealer 25. However, satisfactory sealing between these elements is achieved when only one of the ridges 62 engages the face 27 and of course, this provides an absolute minimum of sliding friction between these elements.

The plastic pocket sealers 40 of Figure 4 greatly reduce the amount of dirt and moisture entering the

pockets

41 and 42. However, due to the fact that the sash balance connectors 47 must travel along the lower portion of the

jambs

14 and 15 and, accordingly, the lower sections of the

pockets

41 and 42, the additional fingers 45b which serve to further enclose the .pockets 41 and 42 may not be employed in this instance. Even with the use of the sealers 40a as shown in Figure '5, the additional flexible fingers '47 must be spaced from the weather strip 58 for proper operation o'f the sashes 10 and 11. Another form of pocket sealer may be used to improve the closure of the pockets-41 and 42 in certain instances.

More particularly, Figure 8 illustrates a modified form of pocket sealer '63 fitting the

recesses

38 and 39 and formed of a suitably shaped strip of plastic 63 which receives pile 64 in a slot 65, the pile 64 extending into engagement with the weather strip sealer 25. The shoulder 46 at the end of the plates 3'6 and 37 bears against the pile 64 and tends to distribute it evenly in a longitudinal direction. With this arrangement, the sash flanges 56 engage the pile 64 and due to its nature, it will sealably envelop these elements. Furthermore, the sash balance connectors 47 will displace a portion of the pile 64 but will not interfere with its sealing function.

Referring next to Figure 2, a transverse recess '66 in the upper portion of the head 12 receives an elongated piece of Weather strip 67 provided with eight ridges 68, two on each side of the strip. Shoulders 69 in the re cess 66 function to retain the strip 67, the outwardly extending fingers 68 sealably engaging a vertical surface 70 on the sash 10.

A piece of the weather strip sealer 25 is positioned in a recess 71 in the lower portion of the head 12, shoulders 72 in the recess 71 retaining the sealer 25. It will be observed that the strip 25 is oriented with its flat surface 27 against the bottom of the recess 71, a piece of weather strip 58 fitting the cavity 30 in the strip '25. Therefore, the ridges 62 found on the strip 58 bear against a vertical flat outside surface 73 on the sash 10 to seal joint effectively. 7

Considering the manner in which the lower sash 11 is sealed to the sill 13 with particular reference to Figure 3, -a recess 74 extending longitudinally along a bottom rail 75 of the lower sash 11 receives a piece of weather strip 76 retained therein by shoulders 77 and carrying downwardly extending ridges 78 sealably engaging a horizontal surface 79 on the sill 13. A further longitudinal recess 80 in the rail 75 receives a weather strip 580: similar to the strip 58 but provided with only three longitudinal ridges 62.

When the sash 11 is fully lowered, the ridges 78 are forced against the surface 79 to seal this joint effectively. On the other hand, before the sash 11 is completely closed the ridges 62 Will engage a substantially vertical surface 81 on the sill 13 and by the time the sash 11 is completely closed, all three of the ridges 62 will engage the surface 80 to seal this joint effectively. This seal is a substantial improvement over previous seals, such as those provided by resilient plastic weather strip, since it substantially eliminates air leakage resulting from dirt and foreign matter which accumulate on a horizontal sill surface but fails to cling to the vertical surface 81. Furthermore, any foreign matter on the surface 81 may interfere with one of the ridges 62 but another ridge 62 will provide an effective seal. Another advantage resides in the fact that even if the sash 11 is not tightly closed, the strip 58a will effectively seal the joint. Of course, any damage to the strip 581: is minimized due to the ridges 62.

It will be apparent from the foregoing that a weather tight metallic window structure has been provided with elements effectively sealing the spring balance pockets from dirt and moisture to reduce maintenance costs. Of course, while metal structure has been referred to in describing an illustrative embodiment of the invention, certain plastic materials may serve satisfactorily in view of the facility with which they may be extruded. Moreover, it Will be understood that the above-described embodiments of the invention are illustrative only and modifications thereof will occur to those skilled in the art. Therefore, the invention is not to be limited to the specific apparatus disclosed herein but is to be defined by the appended claims.

I claim:

1. A metallic window structure comprising a jamb structure having side, inner and outer plates, upper and lower sashes associated with the jamb structure, a parting bead intermediate the inner and outer plates, means to removably support the parting bead on the side plate and spaced between the inner and outer plates, a weather strip sealer formed of resilient material and including a substantially fiat face, said sealer being mounted on the inner surface of each of the inner and outer plates, an elongated thin metallic weather strip formed with a plurality of longitudinal ridges, means for securing said weather strip to the opposite sides of the upper and lower sashes to urge the ridges against the flat face of the sealer, said strip extending in overlapping relationship to the respective inner and outer plates, closure plates extending laterally from the parting bead towards the inner and outer plates to form pockets in the jamb structure, a flexible pocket sealer extending laterally from said closure plates to a position adjacent to the weather strip sealer, said pocket sealer minimizing entry of dirt and moisture into the jamb pockets.

2. In metallic window structure, jamb structure having side, inner and outer plates, upper and lower sashes associated with the jamb structure, a parting bead intermediate the inner and outer plates, means to removably support the parting head on the side plate and spaced between the inner and outer plates, weather strip means :on the inner plate, the outer plate, the parting bead and the sashes to seal the sash-jamb contact surfaces, closure plates extending laterally from the parting bead towards the inner and outer plates to form sash balance receiving pockets in the jamb structure, a flexible pocket sealer extending laterally from said closure plates to a position adjacent to the weather strip means on the inner and outer plates, said pocket sealer minimizing entry of dirt and moisture into the jamb pockets, and attachment means adapted to be joined to a sash balance extending from the sashes into the pockets, said attachment means displacing the fiexible pocket sealer at its point of entry into the pocket.

3. Structure as defined in claim 2 in which the pocket sealer comprises a strip of resilient material secured on one side to said closure plates, the other side of the pocket sealer being tapered to a reduced thickness as it extends to a position adjacent to the weather strip means on the inner and outer plates.

Structure as defined in claim 3 in which the pocket sealer is provided with another tapered section extending at an angle from said one tapered section for further enclosing the jamb pockets.

5. Structure as defined in claim 2 in which the pocket sealer comprises a resilient strip mounted on the closure plates, said last-mentioned strip carrying pile which extends to a position adjacent to the weather strip means on the inner and outer plates.

6. A metallic window structure comprising a jamb structure having side, inner and outer plates, upper and lower sashes associated with the jamb structure,a parting bead intermediate the inner and outer plates, means supporting the parting head on the side plate and spaced between the inner and outer plates, inner surfaces on the inner and outer plates forming one group of surfaces, opposite sides on each of the upper and lower sashes forming another group of surfaces, a weather strip sealer formed of resilient material and includin a substantially flat face, said sealer being mounted on one of the groups of surfaces, an elongated thin flexible and springy metallic weather strip formed with a plurality of longitudinal ridges, and means securing one edge of said weather strip to the other of the groups of surfaces, said securin means providing unimpaired movement of the other edge of the Weather strip and biasing of the ridges of the Weather strip against the flat face of the sealer.

7. In metallic window structure including movable sash carried by jamb structure with weather resistant elements disposed to form surfaces of sliding contact therebetween, said Weather resistant elements forming each of the surfaces comprising an elongated weather strip sealer formed of resilient material including a substantially flat face, a pair of shoulders disposed on opposite sides of the sealer and displaced rearwardly of its flat face, a longitudinal recess in the jamb structure receivin said shoulders to secure the sealer therein, an elongated thin metallic weather strip formed with a plurality of longitudinal ridges, and means securing said weather strip to the sash to urge the ridges against the flat face of the sealer.

8. An elongated weather strip for metallic window structure formed of thin flexible and springy sheet metal for sealing window structure comprising a single major surface formed with at least three longitudinally extending shallow and narrow ridges parallel to the edges of the major surface, a hem alon one side of the major surface, and a bent portion on the other side of the major surface for anchoring the Weather strip in a recess in the Window structure, said bent portion consisting of a V-shaped section with one leg of the section at an angle on the order of degrees to the major surface and the other leg extending back towards the underside of the ridges.

References ited in the file of this patent UNITED STATES PATENTS 1,020,993 Lane Mar. 26, 1912 1,270,869 Relling July 2, 1918 1,477,225 Macklanburg Dec. 11, 1923 1,781,382 Goellner Nov. 11, 1930 1,957,592 Heid May 8, 1934 2,050,369 Oftedal et al. Aug. 11, 1936 2,111,224 Peremi et al Mar. 15, 1938 2,299,651 Peremi et a1 Oct. 20, 1942 2,752,015 Nolan June 26, 1956