Патент USA US2113877код для вставки
Ap' ' '12, 1938. v. cs. CRITTALL ET AL 2,113,877 METAL WINDOW AND STAY THEREFOR Filed Sept. 11, 1935 2 Sheets-Shed l ».\. \ \ , ,. 4 .WHRJLiIZ‘l?S ._\ L.5.4m‘.. ka|l.I7Ah\. April 12, 1938. v.. G. CRITTALL ET AL 2,113,877 METAL wmnow AND STAY THEREFOR ' Filed Sept. 11, 1935 2 Sheets-Sheet 2 mix-WW7” Wm Mam chm? 031x’. 2,113,877 Patented Apr. 12, 1938 UNITED STATES 2,113,877 ' METAL WINDOW AND‘ STAY THEREFOR Valentine George Crittall and Walter Cecil By water, Braintree, England, assignors to The .Crittall Manufacturing Company, Limited, Braintrce, England Application September 11, 1935, Serial No. 40,180 In Great Britain October 12, 1934 5 Claims. (Cl. 292—262) This invention relates to improvements in metal casement windows‘and more particularly On the window frame A is a bracket D, to to an improved construction of stay or like ?tting which is pivoted one end of a swinging arm or '7 therefor. It is the present practice in metal’ casement windows to attach the guide bar for the swinging link E of the stay. The other end of the swing ing arm carries‘ a clamp indicated generally at F and which is in sliding engagement with a guide arm or link of the stay by securing the bar at its ‘ ends to the metal framework or the window, but v this construction has certain practical disad a window B which is hinged to open outwardly about a centre C (see Figure 2). vantages. ‘According to ‘the invention in a metal case ment window having, ?xed and moving frame members provided with inner and outer co-op bar I on window B. The essential feature of this invention consists I in a construction in which the guide bar forms 16 a single unit with the metal section of the window and in the arrangement shown in Figures 1-3 the guide bar consists of a metal strip I attached by riveting to the vertical ?ange of the window _ erating ?anges, the guide. bar for the stay arm section. The guide bar strip comprises an over- ' 15 comprises a rail provided with a retaining rib_ hanging rail 3 terminating in a retaining rib 4 and formed in one with or united throughout its which preferably as shown ‘is of bulbous sec length such as by welding or riveting to one of the tion. The clamp. embraces the rib along which frame members,.the other frame member sup is slidable. porting the stay arm which carries a clamp it In the construction of Figure 4 the guide bar "20 adapted for sliding engagement with the retain 2 ing ribof the rail. ' ,In a preferred arrangement the metal section of the moving frame of'the window along its lower edge is formed with an inwardly extend ing horizontal flange'constituting the guide rail 2 and along which flange. the window clamp carried on the swinging arm is slidable.‘ The guide rail, or the metal strip forming the rail and which is attached by riveting or weld ing to the window section is preferably formed 3 c. at its extremity with a rib of bulbous section. A further feature of ‘the invention consists in the manner of attaching the securing clamp to , the stay arm by means of its tightening pin, since by anchoring the pin to the arm, it being under 35 stood that the head of the pin engages behindthe arm, when the clamp is tightened the arm will be‘rigidly braced by the clamp to the guide rail. The invention is illustrated in the accompany ing drawings in which Figures 1 and 2 are re spectively a part elevation and plan view of a metal casement window having a stay ?tting in accordance with the invention; Figure 3 is a transverse sectional view (on an 45 enlarged scale) and showing the clamping mech anism; 50 55 ' Figure 4 is a transverse sectional elevation of an alternative construction of window section; Figure 5 is a transverse sectional elevation showing a further embodiment of the invention in which the window is constructed to open inward ly. Referring to the accompanying drawings there is shown a metal casement window comprising a ?xed window frame A and a moving frame or instead of being attached throughout its length to the section B forms an integral part of the metal section B of the window and for this pur pose the vertical flange indicated at 5 of the window section is provided with an overhanging "a rail portion 3’ having the rib ll. As shown it is preferable to fit the rib :2 with a liner 4’ of brass or other non-rustable material and where the guide bar is attached such as by riveting to the window section as in Figures 1-3, the entire bar may be. formed of brass or other non-rustable material. ' According to a further feature of the invention the window securing lamp ‘F, which is formed in two parts 5 and l, is anchored to the swinging arm E of the stay with the result that when the clamp is tightened in addition to its functioning to ?x the window by gripping'the guide bar it will also clamp together the guide bar and swinging arm and thus prevent any play- therebetween. The 40 clamping members 6 and l‘ are each formed with a‘ rib-embracing recess shaped to embrace par tially and circumierentially the guide bar rib ll, thereby providing a large surface area for fric tional'engagement of the clamping members 6 and ‘i with the rib 5;. It will be appreciated that by eliminating play, . between the guide bar and the swinging arm, when the window is locked at any opening, the bar and arms will be rigid with one another. This is an important advantage especially when the window is set at a small window opening, since ' in the. normal construction there is a tendency of . its shutting of its own accord, due to play at the pivotal points at each end of the arm, Whereas 55 2 2,113,877 with the clamp of this invention, play can only occur at the pivot between the swinging arm and the window frame. ’ For this purpose the two parts 6 and ‘I of the clamp are secured to each other by a screw threaded stud 8, the head or one end 9 of which is anchored to the stay arm E, its other end pro jecting above the parts of the clamp to receive a thumb or wing nut Ill. The two parts of the clamp are grooved to correspond with the cross section of the rib 4 of the guide bar and in addi tion are respectively provided with a locating rib and groove indicated at I I. The thumb nut may '15 be secured on the stud 8 by means of a screwed pin I2. Referring now to Figure 5 there is shown a fur ther embodiment of the invention as applied to an inwardly opening window, in Whichthe metal strip l of the guide bar rail is secured by weld 20 ing to the vertical flange of the window section’ B and is formed with a laterally projecting rib l3 as distinct to the arrangement of Figures 3 and 4, where the rail 3, 3' of the guide bar is in clined to the horizontal thereby providing in 25 combination with the window pane, a condensa tion channel. In Figures 3 and 4 the rib 4 is on one side of the central plane of the rail but alter natively it may be central (not shown). When, however, the overhanging portion is horizontal or 30 substantially horizontal as in Figure 5, by con structing the rib to project upwardly above the plane of the metal the rib itself may be used to provide this channel. ' In Figure 5 provision is made for setting the the clamp is increased since it is permitted to move the entire length of the ?ange. While the invention is mainly intended for side hung’ windows with reference to which it has been particularly described, it will be understood that it is applicable to other forms, i. e., top hung, bottom hung, and pivoted.‘ Although not illustrated it will be obvious that if desired the guide bar or portion of the stay may be integral with the ?xed frame or section 10 of the window, although such an arrangement is not so practical as one of the advantages of at taching the guide bar to the moving frame is that it can be utilized as a condensation channel. What we claim is:—- ' ‘ 15 1. In a casement window of the class wherein a frame part is movably supported with respect to a ?xed frame part, and in which the moving frame part is provided with a-guide rail and the ?xed frame part has attached thereto a stay arm, 20 the combination with said guiderail and :said stay arm of a clamp including a two-part sliding mem ber adapted frictionally to engage said guide rail, and a clamping pin extending through the stay arm and the two parts of the sliding member and being positioned torexert clampingrpressure on I both the two-partrsliding member and the stay arm whereby the c1amp,'the guide rail, and the stay arm will be rigidly looked together. > ' 2’. Combination as de?ned in claim 1 and in which the guide rail is united throughout its length to the movable frame part. f 3. The combination as de?ned inclaim 1 and 35 angle of the throw of the tightening piece of the in which the guide rail comprises a rib of bulbous dated within the limited space allowed by the window glazing. For this purpose the stud 8 is .40 formed with a squared portion or spline portion I4 adapted to engage in a spline-receiving groove I5 in the lower half of the clamp, the head of the stud of course being a loose ?t in the swing ing stay arm E. If on assembly it is found'that 45 the thumb piece fouls the window pane, it is pos sible by disengaging the squared portion of the stud from the groove in the clamp and turning said rib of bulbous section. section for engagement, by the clamp and in clamp H) as bounded by its locked and release' which the clamping parts are shaped to embrace positions so that it can be properly accommo the screw through 90° or 180° as may be required and then re-engaging the squared portion with 50 the groove,’ to- adjust the setting of the throw of the thumb nut. ' In' order to limit the travel of the clamp along the guide bar a stop formed by means of a screw ,- y e 4.. In a casement window of the class wherein a frame part is movably supported with respect to a relatively ?xed frame part, the combination of a guide bar fast with one 'of said frame parts and comprising an over-hanging rail portion ter minating in'a relatively heavy rib’ of bulbous or substantially circular cross section extending in spaced relation to the frame part which carries said guide bar; a stay arm attached to the other frame part; and a clamp for rigidly but releas ably securing said stay arm to said guide rail at selected points therealong and including two clamping members each formed with a rib-em bracing recess shaped to embrace partially and .59. circumferentially said guide bar rib, a clamping H3 or by crimping a portion I‘! of the bar itself _ pin passing through the stay arm and both of said, clamping members and a clamping nut po may be provided. 55 to cooperate with said pin for exerting The sliding stay construction of this invention sitioned clamping pressure on both clamping members 1.5.5 possesses several advantageschief among which and theistay arm. 7 . is its neatness of appearance while when the 5. In a casement window of the class referred window is in its closed position the swinging stay to in claim 1, the combination as de?ned in claim 60 arm tucks beneath the ?ange forming the guide 1 and in which the securing clamp includes two .60 bar. Moreover by constructing one of the op erating members of the stay as a part integral pieces mounted for slidingengagement with the rail, one of said pieces being formed with with the framework of the window, the number aguide spline-receiving portion and an adjusting pin of loose parts is reduced. ' provided with a spline portion cooperating with 65 Moreover, as compared with the existing prac tice of attaching the guide bar to the window said spline-receiving portion formed on one of 7 section at its ends, the present arrangement has the further advantage that the range of travel of the clamp pieces.’ ‘ . g . VALENTINE GEORGE CRI'I‘I'ALL. WALTER CECIL BYWATER.