US2383155A

US2383155A - Seal for window sash

Info

Publication number: US2383155A
Application number: US403388A
Authority: US
Inventors: Harold T Peirson
Original assignee: Individual
Current assignee: Individual
Priority date: 1941-07-21
Filing date: 1941-07-21
Publication date: 1945-08-21
Anticipated expiration: 1962-08-21

Description

5- H. T. PEIRSON' SEAL'FOR WINDOW SA SHES Filed July 21, 1941 Patented Aug. 21, 1945 PATENT OFFICE a a 1 2,383,155 l i i 1 Q FOR- wmnow SASH Harold]; Peirson, Brooklyn. N. Y. Application Jilly 21, 194;, Serial No; 403,388

This invention 'relates to a seal forhmetallic window sash tor the-purpose. oiwaterproofing andsealin-g the sashwhere it connects to the masonry. of the wall and where it connectsto metallic mullions.

oi the sash whereit enters the; wallflor is used between a sash and the mullion. The asphalt is waterproof and durable and in the form of a fabricated-strip is easily appliedwAnother obiect of the invention isfto provide a flexible, preformedstrip of asphalt which maybe applied in the form of a U-shap'e to the rib of the sash or may be applied in the form of an angle to the sill oi the sash. Another object of the invention is to provide. for waterproofing the bolt holes securing the sash to the mullion from the strip ofqasphalt that separates theseparts. Other objects of the invention will appear from the following specification and the accompanying drawing, in which: w

Fig. Lis a strip of fabricated asphalt'used in. carryinguout this invention; Fig. 2 is an end view of au-shapedeveloped from. strip I; l l Fig. 3;,is an angular shape. developed from M Fig. 4 is a sectional view of a header construction with the window sash in placei Fig. 5 is a sectionalview of the side Tof the sash in the masonry; L

Fig.-6 is a sectional view oi the window sill; Fig. -7 is asectional'view of a pairof window sashes secured, to a mullion; Fig. 8. is a front roding or rusting of metallic or steel window sash where it is built into the masonry. The rust grows in scales arising from the dampness transmitted through the masonry; these scales build up layer upon layer and ultimately lead to a An object of the invention is to, provide a. waterproof seal in the, form of a strip oasphalt which surrounds the metallic part ams. (01. 189-75) To avoid these conditions the present invention provides a strip of asphalt around the rib oi the sash which enters the masonry. This strip is applied to the rib by a waterproof adhesive andiis of sufficient thickness to form a pad or cushion for the metal in the masonry that yields to any pressure that may arise from normal building, movement or settling. In addi- ,tion to thisthe asphalt forms a durable wateradjustable to the sizeof the sillmember without trimming.

.When the sash is supported bya metallic plate such as a metallic mullion, a strip of asphalt is inserted between the sash and the mullion to seal and waterproof this connection. lt is common practice to bolt the sash to the mullion and bolt holes are provided .for. thispurposei These bolt holes; however, are considerably larger than the bolts to provide for adjustment ofthe window sash. It is necessary to. prevent leakage. at the bolt holes so that moisture getting access to the metal at this place cannot spreadand'dev'elop rust,v and so that weather leaks will not occur around the bolts. This condition is effectively avoided by applying a strip of asphalt. with an adhesive to the surface. offfthe window sash or the surface ofthe mullion and opposite thebolt holes to slit it radially so that as the bolt is forced into the hole against the offset asphalt strip the radial projections of the asphalt are carried into the holes. This effectively providesa coating of asphalt for the hole and as the bolt is tightened and the asphalt being somewhat viscous it distortion of the window sash or even to'fracture of the masonry. Other corrosions also occur which over a period of time affect the usefulness of the sash.

flows into the space between the bolt and the walls of the hole to make an eiiective seal which layers from adhering to each other in handling. 1

Prior to this one side of the strip of asphalt may be coated with an adhesive as a rubber cement, and then rolled up for shipment to the place of use. The strip is preferably applied to the metallic surface with a waterproof adhesive, but it can be made adhesive by the application of heat.

When the skin of the asphalt is broken as in the case where it is slit at the bolt holes, the interior asphalt of the strip which is released is adhesive and sticks .permanently to the metal. The adhesive holds the surface of the strip to the iron while the soft interior flows under pressure into the hole and is free to fill the hole. The extent to which this result can be secured depends upon the thickness of the asphalt strip and the space between the bolt and the walls of the hole: If the space is too great, or the strip too thin, the hole will' not be filled with the free flowing asphalt.

When the strip is applied with threaded bolts in holes which have considerable clearance the threads act as a screw conveyor fordistributing the apshalt in the hole.

The fabricated strip of asphalt holds its shape and adheres to the surface of the metal; it does not tend to run under ordinary temperatures.

In the drawing the asphalt strip 31 is folded along the lines a and b into the U-shape, Fig. 2, with the

legs

32 and 33 spaced at d. and the V-groove at 34 having the depth 0. This U- shape is applied as shown in Figs. 4 and 5 to the rib l2 of the sash H which supports the glass 14 by the putty l5 on the sash. In Fig. 4 a groove is provided at 22 between the angles 2| of the header which supports the masonry 20, and the rib l2 with the strip 3| is fitted into this space 22. In Fig. 5 the rib I2, with the protecting strip 3| is built directly into the masonry 20 without a form or other preparation. It should be noted that the thickness of the asphalt strip provides for a Sliding motion of the sash relative to the masonry,

and at the same time the depth of the groove at 34 provides for a large relative movement in this direction.

In the sill construction in Fig. 6 the masonry base 23 tapers oil in a slope 24 to shed the Water and is built in an upstanding ridge against which the angle l2a of the sill member of the sash l I is placed as shown with the strip 3| covering both faces of the angle. The strip 3l'is the same strip as used in Figs. 4 and 5 but the leg 33 is bent around as indicated by the arrow e in Fig. 2 to the angular construction shown in Fig. 3 which fits the angle of the sash. In practice it is desirable that the strip 3| cover the faces of the angle and does not project beyond the angle. At the same time it is not convenient to trim this material on the ground. The loop formed at the groove 34 is adjustable for this purpose so that it may be flattened out to increase the length of the legs Or it may be made larger to take up the surplus. This is readily carried out by the workmen as the installation is being made and the sealing material fills up the corner.

In themullion construction, Fig. 7, the sash I2 is secured to the plate 29 of the mullion 30 by the bolts 26. The face of the. sash adjacent to plate 29 has applied thereon by an adhesive the asphalt strip 25 which forms a seal and cushion for this connection. The sash and the mullion have apertures therein for the bolts 26 and, after the strip 25, Fig, 8, is secured to the sash over the holes2l, radial slits as indicated at 28, are

made in the asphalt directly over the holes 21. The bolt is then applied as indicated in Fig. 9 in which the entering end of the bolt forces the radial portions of the fabric into the hole 21 as indicated at 4|. 7. The bolt is fully threaded and when it is tightened to compress the strip 25 the asphalt flows into the holes in the space around the bo'ltas indicated at 40, thereby making a complete waterproof seal at this point. In this operation, the threads of the bolt which are loose inthe'holes of the plates, also act as a screw conveyor to distribute the asphalt. The fabric 32 is coated on both sides with asphalt 25, and this fabric also is engaged by the threads of the screw and tends to follow the screw in the hole.

The skin of the strip is held in place on the iron by the adhesive while the pressure of the screw clamp forces the asphalt from a. considerable area into the space in the hole; The space that may be filled is limited by the amount of free flowing asphalt that can be forced from the strip.

Having thus described my invention, I claim:

1; In combination with a metallic window frame having a sill member of substantially right angle cross section, and a sill to receive the sill member, of means for sealing the joint between the sill member and sill against corrosion and infiltrations, said means comprising a strip of asphalt affixed to both undersurfaces of the sill member by an adhesive, the asphalt strip having a V formed adjacent the center thereof whereby the same is adjustable to different sizes of sill members. I

2. A protection for the projecting ib of a metallic window sash against corrosion and infiltrations comprising a pre-formed, substantially U- shaped asphalt. cover for said rib having one leg thereof longer than the other leg, and having an inwardly extending groove at thebend of the U- shape.

HAROLD T. PEIRSON.