US1475640A - Weather strip - Google Patents

Description

Nov. 27 1923. 1,475,640

L. A, M KL NBURG WEATHER S TRI P Filed April 29. 1922 L0ui5A.Macklanbur:5r.

3mm, a citizen of the in the county of Oklahoma and State of Oklahoma, have invented cercorresponding Patented Nov. 27, 1923.

LOUIS A. MACKLANBURG, OKLAHOMA, OKLAHOMA.

WEATHER STRIP.

Application filed April 29, 1922. Serial No. 557,253.

To all whom it may concern:

Be it known that I, LOUIS A. MACK AN- United States, residing at Oklahoma city,

tain new and useful Improvements in Weather Strips; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. j

his invention relates to strips of-springy sheet material adapted to be secured between the edge of a sash, door or other closure and its frame for the purpose of excluding dust and air currents. I object of the invention is to enable elastic metallic weather strips to be secured by nails or other headed fastenings without leaving the heads protruding above the gene. eral surface of the strip and without the necessity of performing countersinks in the stri Tlie object is attained in a transversely elastic metallic strip having a suitable offset edge, or suitable edges, for engaging with a relatively movable member, and having an embossed or rolled rib in relief, or convexed on the face of the strip, extending longitudinally thereof along the zone through which the nails or other headed fastenings are driven to secure the strips in place. Nails driven through this transversely convexed zone may be sunk surface thereof by the final blow of the hammer thus depressing the material around the nail head while the spaces left between the sunken heads of the nails serve as a cushion and ide means for the relatively movable memi r, such as the edge of a sash,

even should theelastic engaging portion of the weather strip be forced in so far that the edge of the movable member contacts with the embossed rib.

In the accompanying drawings in which reference characters designate corresponding parts throughout the several views:

Figure l is a cross section through apiece of weather strip made in accordance with this invention;

Figure 2 is a cross section through a fragment of a window casing and sash illustrating the improved weather strip nailed to the casing;

Figure 3 is a view of a fragment of beneath the general secure the weather strip of the embossed portion peather strip nailed in place looking at the ace;

Figure 4 is a longitudinal section on the line H of Figure 3;

Figures 5 and 6 are cross sections of a slightly modified form;

Figures 7 and 8 are cross sections of a further modified form, and

Figure 9 is a cross section of still another form.

Refarring to the drawings, 1 indicates a-lportion of a window casing; 2 the usual windo'w stop; 3 the separating strip, and 4 one"of the'stiles of a sash. W indicates, as a whole, an elastic weather strip, shown in Figure 2, as nailed to the window casing within the groove lying between the stop 2 and the separating strip 3, the offset edge of said strip engaging the stile and sealing the space against the entrance of air currents and dust. The weather strip W may be composed of a thin piece of hard sheet brass or other suitable sprin material formed by suitably fluted, ribbe or grooved bending rolls so as to have a rib transversely convexed or embossed, to form a rolled zone 10 in relief on the face side of said strip and a corresponding groove or channel on the back side thereof. When this stri is nailed in place the edge 11 and the bead 12 on the back side of the strip bounding the channel come in contact with the base to which it is nailed, usually the window casing. Extending from the rib l2 obliquely outward and forward, away from the base, is the relatively broad elastic portion 13 at the edge of which is a recurved bead 14 the convex face of which is intended to engage with the sliding member,as with the inner edge of the stile of a window sash. Thus a smooth bearing surface is provided for the stile and sharp edges which would cut into and wear the wood are avoided. The strip is secured in place usually on the window casing between the stop 2 and separating strip 3' by driving nails 15 at ihtervals through the embossed convexed zone 10. The final blow of the hammer in driving the nail home causes the head of the nail to depress the region surrounding it and sinks the head of the nail below the normal surface of said embossed ridge as shown in Figures 2, 3 and 4. Between the heads of the several nails or other fastenings which in place the metal will retain its origpushed in against the bead 14 so far as to come in contact with the embossed portions of the strip between the nail heads ,there will be no heads projecting to engage with the stile and cut, or wear it, or catch on it to render the opening and closing of the sash I tion and the strip" is shown as vexed on the face of concerned as in t The preferred form of my weather strip is that which is illustrated in Figures 1, 2, 3 and 4. Various modifications thereof may be made, however, that preserve the princlpal feature of utility adapting the weather strip to be nailed in place, without the previous formation of countersunk ortions, whereby the driving of the heade fasteners causes them to sink into a convexed embossed portion and bury their heads below the face surface thereof. In Figures 5 and 6 the embossed portion 10 is rounded in cross secribbed or longitudinally embossed alon parallel lines, as at 16 and 17, principally or the purpose I of rendering the strip stiffer longitudinally in orderto prevent it from bending over and to make it more convenient for handling during nailing. In the form shown in Figures 7 and 8 the embossed or rolled nailing zone 1O forms approximately a wide a le. in cross section and when nails are riven throu h this embossed zone 10 the material imme iately, surrounding the nail head when the latter .is driven home will be flattened out while the portion of said embossed zone between the nail heads will retain substantially its original ribbed form except for the distortion produced adjacent the nail head.

Although I prefer to use a strip nailed adjacent one edge, the free obliquely projected edge elastically engaging the edge 0 the stile or other relatively movable memher, the Weather strip may be made transversely curved in cross section, of symmetrical contour, having two recurved engaging ed es as illustrated in Figure 9 with a centra rolled or embossed portion 10 conthe strip, extending longitudinally midway between the stile engaging edges and forming a convexed ridge or zone a ong the middle of the face side of the strip. Nails or other headed fasteners driven through the nailing zone 10 to secure the stri to the casing will depress the embossed ridge at and around the head so that the outer surface of the head will be sunk below the general surface of the rib and the effect will be the same inso far as the countersinkingl of the fastener heads is e other forms.

Although it is contemplated that the improved weather strip shall be secured by nails or screws to the casing of a sli door or window, it will be obvious that the benefits of this improvement may be ob;

13 therein, a weather and holding secure said strip dmsga tained by nailin or screwing the, strip to 1. A weather strip of thin, sprin materialhaving a convexed zone for t e re-.

ception of means for securing said. strip in operative position, the thickness of the ma terial in said zone being so related to the elasticit thereof that only the portion immediate y adjacent the securing means 1s depressed when the latter is forced to operative position.

2. A weather having a longitudinall convex cross section means for securing said position, the thickness of the ,mat'erial in said. zone being so related to the elasticity thereof that only the portion'immediately adjacent the securing means is depr when the latter is forced to operative position.

3. In combination with a casing member and a closure member movably mounted therein, a weather strip of thin s 'ringy sheet material here having an e'mbossed'zone in relief along the face of the stri and headed fasteners penetrating the em (1 zone and seated in said member havin their heads depressed below-the er surface of said relief zone and ho ding only the material, around said heads depressed and in contact with said member. 1

4. In combination with a casing member and a closure member movably' mounted strip of thin 'springy material having an em zone in relief along the face of the strip and longitudinally spaced headed fasteners penetratin the embossed zone and seated in one of sai members having their heads depressed below the general surface of said relief zone only the part of the zone around'said' heads depremed and in contact with said member.

strip of resilient sheetmetal extending zone of or the reception of 5. A weather strip of springy sheet ma-' terial having an embossed zone in relief extendin longitudinally on the th1ckne$ and resiliency of in said, zone being so" related that, headed fasteningsmay in place without de resing, said zone except t imany portions of strip in operative carried by one of sai memthe face thereof the material be driven therethrough tomediately around-said'fasteners, and a resilient engaging portion extendin obliquely forward and having a recurve free edge the convex face of which-is ada; ted to Ten e a" relatively. slidable" mem r.

n testimony whereof I afiix my signature.

LOUIS A. MACKLANBURG.

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