Патент USA US2122608код для вставки
July 5, 1938. ' w. L. HARLOW GASKET STRIPPING Filed Dec. 23. 1935 _ 2,122,608 2,122,608 Patented ‘July 5, 1938 - UNITED STATES PATENT OFFICE 2,122,608 GASKET STBIPPING Woodward L. Harlow, Newton, Mass. Application December 23, 1935, Serial No. 55,782 11 Claims. This invention relates to gasket stripping which may be used, for example, for weather stripping of windows and the like, sealing of man and hand hole covers and the like, and while not re 6 stricted thereto, has been developed more par ticularly to meet the exacting requirements of casement windows, and where the frame parts are metal, such windows presenting extraordinary difficulties to satisfactory weather stripping, which have hitherto not been satisfactorily met. In such windows the sashes may at some parts make metal to metal contact with the casement frames when the windows are closed normally, and at other points these parts may be spaced apart. Any satisfactory continuous gasket strip of uniform cross section must, therefore, be able to effect a weather-tight joint where the parts are spaced and yet not extend between the sash and its casement frame and prevent contact where there is such contact in the normal closed position of the window. This non-interference with metal to metal contact is of very great im portance, particularly where such contact occurs near a hinge axis of the window since any ob ‘5 struction to complete normal closing here would cause a much greater failure to close remote from the hinge axis. One of the important objects of the present invention, therefore, is to provide a construction of continuous gasket stripping whereby when ap plied, metal to metal contact is permitted wher ever it will normally take place and wherein the parts will be sealed where such contact is not present. , ' A further object is to provide a construction wherein any deformation of the strip in use will be ineffective to pull the strip away from the part to which it is secured as by cement. ' A further object is to provide a stripping con struction which will be effective where the rela tively removable window or like parts have rela tive sliding motion as closed position is ap proached. A further object is to provide a weather strip ping construction which will be serviceable in use. Further objects and advantages will appear from a more complete description of certain em 50 bodiments of this invention shown in the accom (CI. 20-69) showing various forms of strip illustrating this invention. ' Figure 9 is a section through a window sash and its casement frame showing the action of a strip like Figure 2 in effecting a weather-tight seal when the relatively movable parts are out of contact when the window is closed. Figure 10 is a view similar to Figure 9, but showing the frame parts in contact, and Figures 11 and 12 are sectional views somewhat 10 similar to a portion of Figure 9, but showing the window partly open and closed, respectively, and using the stripping of the form shown in Figure 6. Referring first to Figures 1, 9 and 10, at I is indicated the side frame portion of a casement window, this frame portion I, as shown, being of substantially 2 cross section. Cooperating with this casement frame is a sash frame 2 also of sub stantially 2 cross section and carrying between the angularly disposed walls 3 and 4 a retainer 5 to hold the pane of glass 6. The frame 2 is shown as pivoted to the frame I as by the hinge ‘I. In closed position of the window so con structed, the ?ange 4 of the window may at cer tain' points contact with the face III of the ?ange ll of the frame member I and at other points it may be somewhat out of contact with this face when the window is closed. In accordance with this invention stripping is so applied that where the ?ange 4 may, in its 30 normal closed position, contact with the face II), it is permitted to do so, but where this ?ange 4 is spaced from the face I0, it is sealed in weather tight relation thereto. Stripping suitable for this purpose is shown in Figures 2 to 8. In Figure 2, this stripping comprises a body portion I5 of soft yieldable material such as sponge rubber, though it might be extruded or otherwise formed. It is preferably reinforced at both top and bot tom faces with a non-extensible but flexible ma terial such as cloth, as at I6 and II. The base face at I 6 is preferably coated with a suitable adhesive by which the stripping may be secured to the face III of the easement frame and this may be protected by an additional tape which may be removed, when it is desired to apply the stripping in position, to expose the adhesive, as shown, for example, in the Brown Patent No. 1,960,137 granted May 22, 1934. Unlike the structure of the Brown patent, however, the 50 outer face of the body is likewise preferably pro Figure 1 is a front elevation of a metal window vided with a reinforcing fabric IT. This not only construction to which the weather strip may be ' reinforces the strip, but prevents adhesion to the panying drawing in which applied. 55 Figures 2 to 8, inclusive, are fragmentary views cooperating window member which is likely to occur with a rubber surface particularly if the 55 2 2,122,608 ~\ mating surface contains oil, as when somewhat recently painted. The side face of the body member i5, which may be termed the forward face, is shown as recessed at I8 so that the body strip is channel shape in cross section and, for a purpose which will later appear, the upper por tion of the body is partly cut away from the ‘tower portion as by means of a slit I9, leaving a neck of uncut material as at 20 between the inner 10 edge of the slit I9 and the recess I 8. The body strip may be cut of rectangular cross section from a sheet of materiai of a thickness equal to the height of the strip and provided with a fabric reinforcement on opposite faces, after which the shown at the right end of Figure 10, depending somewhat on the exact placing of the strip as secured to the frame member I. In some instances there is more or less relative lateral motion of the'cooperating frame members $1 when approaching closed position. For example, there is some such motion on the left in the con struction shown in Figures 9 and 10, due to the relative angular motion of these parts on the hinge ‘I, and this neck portion 20 furnishes a 10 yielding connection between the head and the base of the strip which yields to this motion, per mitting the head portion to be rearwardly offset relatively to the base, the engagement of the recess I5 and the slit I9 may be cut therein. ' frame member 2 on the head of the strip forcing The strip such as shown in Figure 2 is cemented in position on the marginal face Ill of the ?ange II with its recessed face posiotioned toward the frame member 3 when this member is in closed 20 position, as shown in Figures 9 and 10. The this head rearwardly relatively to the base of the strip. . In Figures 3 to 8, other forms of stripping which may be employed in accordance with this invention are illustrated. These may be made of outer edge of the base portion 2i of the strip is ' sponge or xtruded rubber with or without a positioned at one side of the angularly disposed sponge rubber lower face, if desired, or in thin outer faces of the wall members 3 and 4, which, sections even from metal or in combination with as usually constructed, meet each other in an metai. In Figure 3 the stripping is. shown as 25 outwardly extending bead portion 22, the strip formed of readily deformable material such as 25 being so placed that this bead portion 22 engages the upper lip portion 23 of the gasket strip above the recess I 8, this lip being spaced from the base portion and extending toward the forward edge 30 thereof. Thus, when the parts 2 and I fail to make metal to metal contact when the window is closed, as shown in Figure 9, the lip or flange portion 23 makes sealing engagement with some part cf the bead portion 22, either bearing on the top face thereof, as shown at the right hand sponge rubber reinforced at its top and bottom faces as by the fabric I‘! and I6, as in the con struction shown in Figure 2,\but the recess in the forward face is shown as angular as at I 8a, forming the lip or ?ange portion 23a similar to 30 the corresponding part of the construction shown in Figure 2. Stripping of this form also, is pro vided with the slit IS in its rear edge for the same purpose as for the construction shown in Figure 2. - . end of Figure 9, or, if the member 4 approaches In Figure 4, the recess lab in the forward wall is su?iciently close to the surface I 0, the ‘rower face shown as of arcuate contour, but otherwise the construction is the same as in Figures 2 and 3. of this lip 23 bears on the outer face of the bead 22, as shown at the left end of Figure 9. It will be 40 noted that where the member 2 strikes against the upper face of the lip, it tends to rock the upper or head portion of the strip about the resili In Figure 5 the head portion 30 of the stripping is shown as made of a separate membenfrom 40 the body portion 3| and is secured thereto. The head portion in this construction has the for ent neck portion 20. The provision of the slit I9 prevents this rocking from being transmitted to the base portion. 3i and the base portion 3i is the outer or rear edge of the stripping in a man provided with the slit I9 ner tending to lift it away from the surface I0, which would be likely, if permitted, to cause the stripping to be pulled away from the surface I0 after some period of use. This slit I3, however, .50 affords a yielding neck portion for supporting the upper or head portion of the stripping which can yield or bend without tending to pull the rear edge of the stripping away from the surface to which it is cemented. It also provides for a 55 portion of some substantial width of the full thickness of the strip material presenting a top face for engagement anywhere within this width by the relatively movable frame member, thus providing for commercial variations: in such The substantial width of the bead por 60 frames. tion also affords a more susbtantial lateral sup port for the lip 23. Preferably also the lips 2I and 23 are tapered outwardly so that they more nearly conform under pressure to the shape of the bead portion 22 which may contact therewith, thus to increase the area of such contact and the completeness of sealing. In Figure 10 is shown the position of‘ the strip 35 wardly extending lip 230 which extends beyond its rear face as in the constructions previously described. This is in e?ect the same as though the base were cut back to the ‘depth of the recess in the forward side face of the strip. ' In Figure 6, a somewhat different construction is employed preferably made of extruded rubber. This includes a ?at base portion 35 from which extends a yieldable neck portion 3-6, preferably placed inwardly from opposite edges 31 and 38 of the face portion 35, although with a relatively 55 long neck, such as shown, the stresses which would otherwise tend to lift the back edge of the base portion 35 may be sufficiently taken care of in the length of this neck without requiring any extension of the, base portion back of the 60 root of this neck. This neck also carries at its upper end a head portion 39 having the for wardly extending lip or ?ange 23d which is spaced from and extends over toward the edge 38 of the base member. This head member may also 65 extend rearwardly of the top of the neck portion 36 as shown at 4.0 in order to impart a desirable lateralsti?ness to the head and width of top ping where the frame member 2 may make metal ' face for engagement by the movable frame part, to metal contact with the ?ange member I I. The although in some cases this may not be important 70 lip 23 then engages the bead portion 22 either on or back of the face 4 and may ride up more or less onto the outer face of the portion 3 either above the bead portion 22, as shown at the left 75 end of Figure 10, or on the outer face thereof, as and may be omitted. If desired, the upper and lower faces of this strip may be reinforced with fabric, but if it be made of extruded rubber it is not so important that the upper face be so rein forced. The reinforcement of the lower face has 3 2,122,608 for one of its objects the prevention of the se curement of the strip in stretched condition, the recoil tendency tending to release the securement of the strip in position, or to cause it to draw back so as not to produce weather tightness for the full length of the cooperating window parts and this upper face reinforcement also aids in these respects. In Figure 7 is shown a construction wherein the forward face of the strip is cut back on a bevel to its base, so that in effect the forward \face is recessed and the base cut back, as men tioned with respect to the construction shown in Figure, 5. The rear face may be complemental ly beveled to produce a wider securing face and to save waste in cutting. The ?at cut is easier to produce than a out such as shown in Figures 2, 3 and 4 arid it results in a construction which presents a lip or ?ange 23c spaced from the base which acts similarly to the corresponding part of each of the constructions hereinbefore de scribed. Figure 8 illustrates a construction particularly suitable for production by extrusion. It may be extruded as a complete tube with or without a thickened side portion to form a base 45 and the part between the edges 46 and 41 may then be cut out to leave the arcuate portion 48. If the thickened portion to form the base is not initially 30 formed, it will usually be found desirable to se cure a suitably shaped part to the tube to form such a base before the tube is cut to form the edges 46' and 41. The portion adjacent to the edge 41 of this construction serves as a lip or 35 ?ange spaced from the base for sealing engage ment with one of the parts to be sealed, this part tending to coil to a shorter radius when pressed upon by such part, that part of the tube toward the base serving as a resilient neck between the 40 base and the head portion spaced from the base. In Figure 11 a strip such as is shown in Figure 6 is shown as secured in position on the face ll) of the casement frame. The lip or ?ange portion 23d extends over in position to be contacted by the part 22 of the frame member 2 before this frame member contacts with the face Ill so as to effect sealing engagement therewith should it fail to reach actual contact with the face ID in normally closed position, but permitting such actual face to face contact where the construction and relation of the frame parts will allow this in the ?nal closed position. Figure 12 shows this sealing of the strip to the member 2 while this member 2 is still spaced somewhat from the face Ill. While this stripping is shown as applied to a single form of window, it will be evident to those skilled in the art that it may be applied in a I claim: 1. A gasket strip comprising a body member having a base face for securement to an object, said body member having a recess along a side face to form a pair of spaced edge portions one adjacent to and one remote from said base face, the opposite side face having a slit extending inwardly therefrom toward said recess to leave between them a neck portion. 2. A gasket strip comprising a body member having a base face for securement to an object, said body member having a recess along a side face to form a pair of spaced edge portions one adjacent to and one remote from said base face, the opposite side face having a slit extending in wardly therefrom toward said recess to leave be tween them a neck portion, said edge portions tapering outwardly. 3. A gasket strip comprising a body member having a base face for securement to an object, 20 said body member having a recess along a side face to form a pair of spaced edge portions one adjacent to and one remote from said base face, the opposite side face having a slit extending in wardly therefrom toward said recess to leave be tween them a neck portion, said strip being com posed of deformable material. 4. A gasket strip comprising a body of soft ex tensible material, a relatively non-extensible but yieldable material secured at the top and bottom 30 face portions of said strip, said body having a recess in one side face to form a lip overhanging a base in position to form a sealing element for cooperation with a relatively movable part of a structure to which said strip is secured. 5. A gasket strip comprising a body of soft extensible material, a relatively non-extensible but yieldable material secured at the top and bot tom face portions of said strip, said bottom face portion having an adhesive coating by which said 40 strip may bei-secured in position, said body hav ing a recess in one side face to form a lip over hanging a base in position to form a sealing element for cooperation with a relatively mov able part of a structure to which said strip is secured. 6. A gasket strip comprising a body of soft extensible material, a relatively non-extensible but yieldable material secured at the top and bottom face portions of said strip, said body hav ing a recess in one side face to form a lip over hanging a base in position to form a sealing element for cooperation with a relatively movable part of a structure to which said strip is secured, and slit inwardly from the face opposite to said recess. '7. A gasket strip comprising a body of soft extensible material, a relatively non-extensible similar manner to windows or like parts variously but yieldable material secured at the top and supported for closing and opening movement and . bottom face portions of said strip, said bottom 60 60 that in some cases it may be desirable to attach face portion having an adhesive coating by which the strip to the window or other movable part said strip may be secured in position, said body rather than to the casing. It may be employed having a recess in one side face to form a lip over to great advantage when the parts to be sealed hanging a base in position to form a sealing ele have relatively rough contact faces, as, for exam ment for cooperation with a relatively movable 65 ple, those produced by casting, as it is not neces part of a structure to which said strip is secured, sary to face off or otherwise render smooth these ' and slit inwardly from the face opposite to said faces, the sealing taking place not between these faces, but between one of them and an angularly related face which more or less wipes by the seal ing lip of the strip when the relatively movable parts approach each other. It will also be evident that various other changes and modi?cations may be made without departing from the spirit or scope of this invention as de?ned by the ap 75 pended claims. recess. 8. A gasket strip comprising a body member having a base face for adhesive securement to 70 an object, said body member having a recess along a side face to form a pair of spaced edge portions tapering outwardly one adjacent to and one re mote from said base face, said strip being com posed of deformable material, said body also hav 4 9,198,608 ing its upper portion partly severed from its lower by to preventtransverse rocking stresses impart base face secured to said surface portion at one side of said angular portion in closed position whereby to permit direct contact of said sur ed to said upper portion from reaching the back face portions with each other, said strip having 1 portion on the side. opposite to said recess there 10 edge of said strip where it is secured by said adi hesive in a direction to pull said edge loose. 9. In combination, a pair of relatively‘ movable parts having cooperating faces which may con tact at certain places when said parts are brought together and at other places be out of contact, one of said parts having a face at an angle to a yieldable portion normally spaced from said base face in position to engage said angular sur face portion and e?’ect a weather-tight seal thereto when said angular surface portion is somewhat spaced from said marginal surface portion. '\ ‘ 10 to the other of said parts and positioned to offer no obstruction to contact between said cooperat 11. In combination with relatively closable and openable building parts, one of said parts having a marginal surface portion and the other having an angular surface portion provided with ing faces and having a yieldable .part positioned to make sealing contact with saidflrst part on a rounded bead at the outer apex of said angle 15 closable to said marginal surface portion, a gas either its cooperating face or on said. angularly related face to effect sealing of said parts when they are brought together irrespective of con 20 tact or lack of contact between said cooperating faces at any place. 10. In combination with relatively 'closable and openable buildingv parts, one of said parts having a marginal surface‘ portion and the other 25 having an‘ angular surface portion closable to said marginal surface portion, a gasket strip comprising a ‘body of strip material having a ket strip comprising a body of strip material hav ing a base face secured to said surface portion at one side of said angular portion in closed po sition whereby to permit direct contact of said 20 surface portions with each other, said strip hav ing a yieldable portion normally spaced from said base face in position to engage said bead its cooperating face, and a gasket‘ strip secured and effect a weather-tight seal thereto when said angular surface portion is somewhat spaced from 25 said marginal surface portion. . . ' WOODWARD L. HARLOW.