US2778630A - Awning-type window and operating means therefor - Google Patents

Description

Janl. 22, 1957 H. A. PEARSON AWNING-TYPE WINDOW AND OPERATING MEANS THEREFOR 5 Sheets-Sheet 1 Filed July 22, 1953 INVENTOR ATTORNEY Jan. 22, 1957 H. A. PEARsoN 2,778,630

AWNING-TYPE WINDOW AND OPRATING MEANS THEREF-OR Filed July 22, 1955 5 Sheets-Sheet 2 HDW/QEDAJEA .eso/xg, BY l W I ATTORNEY Jan. 22, 1957 H. A. PEARSON AWNING-TYPE WINDOW AND OPERATING MEANS THEREFOR 5 Sheets-Sheet .'5

Filed July 22, 1953 Jan- 22, 1957 H. A. PEARsoN 2,778,630

AWNING-TYPE WINDOW AND OPERATING MEANS THEREFOR Filed July 22, 1953 5 Sheets-Sheet 4 A L L() L?) s?) INVENTOR Ho WABDA-BSA ,eso/v,

ATTORNY Jan. 22, 1957 H. A. PEARSON 2,778,530

AWNING-TYP WINDOW AND OPERATING MEANS THEREFOR y 5 Smeets-sheet 5 Filed July 22, 1953 INVENTOR HwAeDA/esmg ATTORNEY United States Patent O AWNlNG-TYPE WINDOW AND OPERATING MEANS THEREFOR Howard A. Pearson, Miami, Fla., assignor, by mesne as-` signments, to Leonard Window Corporation, a corporation of Florida Application July 22, 1953, Serial No; 369,591

1 Claim. (Cl.v26823) 'Ihis invention relates to windows of the louver or awning type in which a tier of horizontally hinged sashes are arranged in the open area of a rectangular frame and are adapted to swing upwardly and outwardly from closed positions in a single vertical plane when an operating,

member on the inside of the frame is actuated. The invention relates more particularly to the means for mounting the sashes and opening and closing them. I

In some windows of this character which open for maximum ventilation and at the same time prevent the beating in of rain, the hinged sashes are at their ends linked for simultaneous movement to vertically reciprocating operating bars or links at the sides of the frame. It is an object of the invention to provide an improved arrangement lof pivotal connections between the sashes and frame, between the sashes and their actuating links and between those links and the traveling or reciprocating operator bars, with the pivots between the links and bars positively guided during the opening and closing movements of the sashes,V the triangular ,arrangement of the three pivots of each group being such that maximum opening or lifting power is obtained when the operator is moved in one direction and maximum closing and lock-- ing power is obtained when it is moved in the opposite direction. t

Other objects are to provide in a window operating structure of this character, improved means for actuating the traveling operator bars or links including anupright screw and traveling nut in one of the hollow jambs of the frame, an improved arrangement of the horizontal torsion shaft in the hollow sill of the frame with a snapin cover over an opening in the sill above the shaft, a sash counterbalancing spring arrangement inthe hollow sill having flexible connections with the two travelinglinks in the jambs, improved means removably and adjustably hinging the sashes, and other novel features of construe tion.

With the above and other objects and advantages in View, the invention resides in the novel combinations and arrangements of parts and the novel features of construction hereinafter described and claimed, and illustrated in the accompanying drawings which show the present preferred embodiments of the invention.

In the drawings:

Fig. 1 is an outside view in elevation of a window having two horizontally pivoted vertically swinging sashes;

Fig. 2 is a vertical section on an enlarged scale, taken substantially on the line 2-2 in Fig. l, parts being broken away;

Fig. 3 is a detail sectional view'taken substantially on the line 3 3 in Fig. 2; s

Fig. 4 is a view similar to Fig. 2 but showing the sashes in partially open positions;

Fig. 5 is adetail perspective View of one of the phenolic resin slides;

Fig. 6 is a detail view of the nut member for the sash operating screw; y

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Fig. 7 is a horizontal sectional view taken substantially on the line 7-7 in Fig. 1, parts being broken away;

Fig. 8 is an enlarged detail view showing the link, lever and screw means for actuating the sashes;

Fig. 9 is a view of the parts shown in Fig. 8 but taken at right angles to the latter;

Fig. 10 is a detail view in elevation showing an upper corner of a lower sash and a portion of the window frame to illustrate the adjustable hinge means for the sash;

Fig. 1l is a detail end View of the upper portion of a lower sash showing an adjustable hinge member thereon;

Fig. 12 is an enlarged section taken on the line 12-12 in Fig. l;

Fig. 13 is a detail section taken on the line 13v-13 in Fig. 1;

Fig. 14 is a View similar to Fig. 13 but showing the upper sash in partially open position;

Figs. 15 and 16 are views respectively similar to Figs. 8 and 9 but showing a slightly modified form of linkage for the sash operating means.

Figs. 17, 18 and 19 are respectively top, side and edge I views of the casting in which one end of the torsion shaft mounted.

Referring more in detail to the drawings, the numeral 20 denotes as a whole a rectangular window frame which may be suitably mounted in `a Wall 21-of any desired construction and within which is a tier of swinging sashes 22. While only two sashes are shown, a greater number may be used. The frame 20 has a lintel 23, a sill 24 and jambs 2.5 and 26. All of these parts are vof hollow formation and made of suitably united sections of metal such as aluminum, some of which are extruded. The rectangular sashes 22 are also preferably made of suitably united aluminum sections of the Z-bar type, and each has a glass pane 27 fastened by putty 28 or other means. The sill and jambs contain the operating mechanism for the plurality of sashes, each of which is mounted to swing upwardly and outwardly on a pair of opposed hinge pins 29 ixed to theA innerfaces of the outer walls 30 of the jambs. These pins are removably engaged by a pair of hinge straps 31 adjustably fastened to the side edges of a sash near its top, as seen in Figs. 10 and ll. The hinge straps have offset upper ends 32 apertured to receive the pins and engage positioning shoulders 33 formed by enlarged portions of the pins riveted at 34 in the jambs. Spring clips engaged with grooves in the pins retain the straps on the pins. The main portion of each strap is formed with alined longitudinal slots 35 to receive screw fastenings 36 in the upright web portions 37 of the side sections or bars of the sash. This hinge mounting of the sashes permits easy mounting and removal, and ready adjustment of the sashes with respect to the operating mechanism, thus taking care of slight variations in sizes and shapes of the parts.

Each sash is moved by a pair of operating links 38 connected at their lower ends to pivots 39 on the sides of the sash and at their upper ends to pivot pins 40. The pivots 39 are well below the center line vertically of the sash so that the links are relatively long. The pivot pins 40 for each sash on each side of the frame are not only connected by travel links or bars 41 located in the hollow jambs but are also positively guided in inclined paths as the travel links move them to cause the links 38 to actuate the sashes. This guiding of the pins 40 is eiected by mounting them in slides 42 which move in channel-shaped guide tracks 43 fastened by rivets 44 in downwardly and outwardly inclined positions on the inner faces of the outer walls 3010i the jambs, as will be understood on reference to Figs. 3 and 4. Each of the guides 43 is a straight metal strip or block having parallel side walls with inturned flanges 45 to provide an undercut channel of T-shape in cross section. Each slide 42 is a block made preferably of phenolic resin shaped to lit and slide freely in the channel and having a rib 46 to project beyond the flanges 45 for engagement with the coacting travel bar 41, as shown in Fig. 3. The pin 441 is cylindrical with a head 47 at its inner end and it is seated in a suitably shaped opening in the slide with its free end projecting beyond the rib 46 for reception in pivot holes in the links 41v and 38. The projecting end of the pin is grooved to receive a U-shaped spring clip 48 for removably retaining the links on the pivot pin. The channeled guides 43 for each sash are located opposite the upper end of the sash, and the arrangement of the three pivots 29, 39 and 40 in connection with the angular disposition of the guides 43 is such as to set up a working' triangle which will obtain the maximum components of lifting force on the sash operating links when the travel link is moved downwardly, and likewise when the travel link is moved upwardly, the maximum closing and locking power is applied to the sash moving links. This arrangement in connection with the hinge mounting of the sashes permits easy application and removal of any sash.

To cause the travel links in the two jambs to be simultaneously actuated, the projecting lower ends of these links carry pivot pins 49 to which are connected the upper ends of power transfer links 50. The latter have their lower ends connected by pivots 51 on the ends of power arms 52 xed to the end portions of a horizontal torsion shaft 53 located in the hollow sill 24. An upright screw S4 carrying a traveling nut 55 is mounted in one of the hollow jambs and the adjacent end of the sill, and the movement of the nut may be transmitted to one of the travel links either as shown in Figs. 8 and 9 or Figs. 15 and 16. In the rst form a pair of upright links 56 have their upper ends mounted on the adjacent pivot pin 49 on opposite sides of the links 41 and 50, the lower ends of the links 56 being laterally offset and connected to pivot studs 57 projecting from opposite sides of the nut 55. In Figs. and 16 a pair of links 56a have their upper ends mounted on the pivot studs of the nut and their lower ends straddling the adjacent power arm 52 and mounted on a pivot pin 58 extending through that arm. In all other respects the construction and operation of the modified form is the same as the rst form.

To facilitate the operation of the actuating means, there is preferably provided a sash counterbalancing means in the form of a horizontally disposed coil spring 59 vin the hollow sill 24 with its ends connected to two llexible elements or cables 60, the other ends of which are connected to the pivot pins 49 at the lower ends of the travel links 41. The coil spring is pre-calibrated according to the number of sashes and the type of glass therein, and it floats in the sill between two rollers or pulleys 61 about which the cables pass. The arrangement is such that when the sashes move to closed positions the spring is put under tension, and its energy is released during the opening movement of the sashes.

T he hollow sill 24 includes a wide bottom plate 62 and a narrower top plate 63 connected by an upright wall 64 at the inside of the window, there being an arrow upright ange 65 along the outer edge of the bottom plate, as seen in Fig. 2. The sill thus has an open portion along its outside edge and in which the torsion shaft is disposed. This opening above the shaft is closed by a resilient sheet metal cover plate 66 which has the cross sectional shape shown in Fig. 2, and which may be snapped into and out of position. The cover plate has a at top portion to engage the underside of the sill top 43 with a curved outer portion to snap in rear of the flange 65 after the curved inner portion is inserted in the sill above the coil spring and shaft.

The screw 54 is at the upper portion of a shaft rotatable in a bearing 69 in a casting 70 fastened by screws 71 in the jamb 25 and the adjacent end of the sill. The casting has an upright portion of open formation to expose the pivot studs of the nut 55. At the top of the upright portion is an opening through which the screw shaft may be inserted and lowered into the bearing. The screw is held in its bearing by a pinned collar above the latter and the pinned hub of a beveled gear 72 below the bearing. Gear 72 meshes with a similar beveled gear 73 lixed to a forwardly and rearwardly extending shaft 74 journaled in the lower portion of the casting. The gear 73 is disposed in a recess in the casting and in the recess is also one of the pulleys 61, the latter being rotatable on the shaft 74. The inner end of the shaft extends through the sill and carries a removable crank handle 75 by means of which the sashes are operated. At the outer end of the base of the casting 70 is an apertured ear 76 which serves as a bearing for the adjacent end of the torsion shaft 53. The other end 0f shaft 53 is mounted in a bearing opening 77 in a substantially right angular casting 78 secured by screws 79 in the other end of the sill beneath the jamb 26. One arm of the casting 78 is formed with spaced apertured ears 80 between which is one of the pulleys 61 rotatable on a pin in said ears. As above noted, at the top of the upright portion 70 of the casting is a circular opening to permit the screw shaft 54 to be inserted in the casting and at the top of the shaft is a cylindrical portion which rotates in said circular opening as an additional bearing for the shaft.

` In order to have a weather tight window when the sashes are closed, the inner or top wall 63 of the sill and the narrower inner wall 81 of the lintel and also the inner walls 82 of both jambs have at their edges extruded flanges 83 with under cut grooves 84 to receive rubber or other resilient weather strips 85. These strips thus extend `all around the frame opening -in which the sashes are disposed. The weather strips have exible tail portions or ribs 86 adapted to be engaged by the inner llanges 87 of the Z-bars from which the sashes are constructed. When the sashes are closed the flanges 87 are intended to make metal to metal contact with the flanges 83, as seen in Fig. 7 but the resilient tail portions of the weather strips will seal the frame opening if these anges do not engage; A similar triple sealing engagement between next adjacent sashes is obtained with the structure shown in Fig. 12, by extruding a grooved weather strip holding ange 88 `along the top bar of each of the lower sashes and by extrnding the lower bars of the sashes with a depending flange 89 to be engaged by the flange 88 and its weather strip, and by laterally offsetting the lower edge of the `outer ange of the bottom bar of the sashes, as shown `at 90, so that it contacts with the top bar of the next lower sash. At the top of the uppermost sash, the usual separate drip cap may be dispensed with and a rain proof engagement between that sash and the top of the frame may be obtained, by laterally offsetting the upper edge of the outer flange of the top bar of the sash, as shown at 91, so it will contact with the inner face of the depending flange 92 when the sash is closed, as seen in Fig. 13. This olfset 91 is along a portion 92 of the flange curved on the axis of the hinge pin 29, and that portion of the flange at its ends are inserted in openings formed in the inwardly extending outer flanges of the jambs by striking inwardly portions 94 also curved on the axis of the pins 29, as will be understood on reference to Figs. 13 and 14.

From the foregoing, taken in connection with the accompanying drawing, it will be seen that novel and advantageous provision has been made for carrying out the objects of the invention, and while preferences have been disclosed, attention is invited to the possibility of making variations within the scope of the invention as claimed.

I claim:

An awning type window comprising a frame, a tier S of sashes, means pivotally mounting the upper ends of the sashes on the sides of said frame, a pair of elongated guides for each sash mounted. in opposed relation on the frame and disposed in downwardly and outwardly inclined positions adjacent the pivoted upper ends `of the sashes, each of said guides being a channeled metal strip having parallel side walls with inturned flanges to provide an undercut channel of T-shape in cross section, a slide in each -of said guides comprising a molded plastic block having a sliding lit in the channel of its guide and a rib projecting outwardly between the flanges of that guide, a metal pivot pin anchored in each of said blocks with its end projecting through the rib and outwardly beyond the anges of the associated guide, a pair of operating links for each sash pivotally mounted at one end on a pair of said pins and pivotally connected at their other ends to the sides of the associated sash below its center line, a vertical travel link at each side of the frame mounted on said pivot pin's at each side of the frame, and means to simultaneously move said travel links to actuate said blocks in their guides.

References Cited in the le of this patent UNITED STATES PATENTS 637,402 Mulder Nov. 2l, 1899 1,171,979 Rixson Feb. 15, 1916 1,480,994 Church Jan. 15, 1924 2,137,425 Thompson Nov. 22, 1938 2,137,426 Thompson Nov. 22, 1938 2,182,574 Anchilowitz Dec. 5, 1939 2,199,562 Griin May 7, 1940 2,478,044 Gargiulo Aug. 2, 1949 2,585,122 Hartman Feb. 12, 1952 2,620,523 Broleman Dec. 9, 1952 2,636,727 Toth Apr. 28, 1953 2,644,557 Westman July 7, 1953

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