US2636727A

US2636727A - Window operator-screw type

Info

Publication number: US2636727A
Application number: US108965A
Authority: US
Inventors: Toth Louis
Original assignee: Individual
Current assignee: Individual
Priority date: 1949-08-06
Filing date: 1949-08-06
Publication date: 1953-04-28
Anticipated expiration: 1970-04-28

Description

L. TOTH 2,636,727

April 28, 1953 WINDOW OPERATOR SCREW TYPE 3 Sheets-Sheet l Filed Aug. 6, 1949 April 28, 1953 L, TOTH 2,636,727

WINDOW OPERATOR SCREW TYPE Filed Aug. 6, 1949 3 Sheets-Sheet 2 nner itor 44 LOU/S 70TH Clttor egs April 28, -1953 Filed Aug. 6, 1949 L. TOTH WINDOW OPERATOR SCREW TYPE 3 Sheets-Sheet 3 A38 3nneutor Lows To TH W /065 a fl (Ittornegs Patented Apr. 28, 1953 orr ca 2,636,727 WINDOW OPERATOR-SCREW TYPE I Louis Toth, Stamford, Conn.

x 1 Application August 6, 1949, Serial No. 108,965

This invention relates to window operating devices and is applicable to various typesof'windows having movable sashes, such as the sliding sashes of double hung .windows and windows having tilting or projected sashes. r

In accordance with the present invention, means are provided for applying thepower for moving the movable window sashes by means of rotatable threaded spindles mounted in the window jambs and provided with suitable gearing for rotating the same. Connections are made from the spindles to the movable sashes. In the case of vertical slidable sashes, traveling nuts are connected to the sashes by brackets. Inthe case of projected or swinging windows, traveling nuts are provided "which are connected to the sashes by meansof pivoted operating arms or links. In both instances, means are provided for separate- 1y adjusting the operating mechanism at each side of the 'movable sash so as to secure proper equalization of movement and smooth action.

It is a common practice to mount a series of movable sashes one above theother in a single frame, and in such cases, while it is possible to provide "a complete separate operating unit for each sash, it is frequently desirable to operate all ofthe sashes by a unitary operating means. In such instances, a single pairof threaded spindles may be mounted to operate the entire vertical series of sashes. In accordance with the present inventiqn, .such spindles are. made in longitudinally. adjustable sections .so that proper adjustment may be made with respect to eachv sash to insure proper opening and closing thereof.

Means arej'also preferably provided whereby any sash operating means maybe disconnected so that one or moresashes may be leftclosed, while the remaining sashes are opened. I These features may beused for operation flof either sliding or swingingsashes. l

In .the accompanying drawings, certain preferred embodiments of the invention are shown for the purpose of illustrating the principles thereof but it will be understood that the invention may be utilized in other formsand modifled in details as may be required.

Inthe accompanying drawings: n

' Figure 1 is a front elevation of a pair of double hung windo ws embodying oneform of the in-.-v vention, '-parts being broken away; r f Figure .2 is avertical sectionon jthe line 2-4 ofFigure 1;

A Figure. 3 is iahorizontal sectlon. on the line 3-3 ofFigurel; H I M Figure 4 isa horizontal secti'onion the line 4-4; Figural? 5 Claims. (01. 268-21) 2 Figure 5 is a horizontal section on the line 5-5 of Figure 1; Figure 6 is avertical section of one of the end sill boxes; i Figure 7 is a diagrammatic view in transverse vertical section, showing a series of projected sashes mounted one above the other in a window opening;

Figure 8 is similar view, showing one of sashes and the operating means therefor;

Figure 9 is a transverse section on the line 9--9 of Figure 8; w Figure 10 is a fragmentary vertical section on the line Ill-10 of Figure 9; and v Figure 11i is a fragmentary vertical section showing an operating spindle with a modified form of adjustment.

Referring to the drawing in detail, and particularly' to Figures 1 to 6, the windows comprise an upper sash 20 and a lower sash 22, the ope; erating mechanism being shown as designed to raise and lower only the lower sash. Obviously, provision could be made for operating the upper sash also, or the sashes might be balanced against,

one another so as to be simultaneously moved in opposite directions, in a well understood man-L ner. Thesashes are mounted in frames com'- prising hollow metallic sills 24, ,

lintels 26f'and jambs

28 and 30, the jambs 30 being shown in this instance as combined to form a mullion 32. The operating means comprise a pair of threaded spindles 34, one at each side of the window, and means for rotating the spindles. struction shown, the spindles are mounted at th' top in bearing brackets 3'6'fix'ed in the jiarnbs which ,arereinforced where the brackets are attached by reinforcing plates 31. At the bottom. the spindles are mounted in thrust bearings 38, preferably. of ball or roller type, which are mounted in gear boxes in the sills. The movable sash'is provided with brackets 40 carrying nuts 42 which travel on the threaded spindles as the latter are rotated. Means are provided for sep-j arately adjusting the spindles so that the movable sash may be properly leveled up so as to travel freely in the jambs. Such means preferably permit of adjustment after the mounting of the windows so that in case of some slight dis-.

tortion of the window frames, the sashes may still be so adjusted as to have the desired free travel. n

In the construction shown, very simple and ef fective adjusting means are provided in which the threaded part of the spindle may be adjusted. lengthwise with respect to the spindle base or.

bottom portion. Such adjusting means com- In the con-- prise forming the lower end of the spindle 34 and the upper end of the spindle portion 44, each as a half-round projection 66, such projections being provided with interlocking horizontal teeth 48. The two overlapping spindle end portions 46 are received in a sleeve 50, the lower end of which is threaded and engaged with threads 52 on the spindle portion 44. The sleeve holds the two spindle portions firmly locked together in any desired adjustment. When it is desired to change the adjustment, the sleeve 50 is unscrewed from the threads 52 and slid upwardly above the halved-together spindle ends, which may then be separated and the upper spindle portion moved up or down a distance of one or more of the teeth until the desired adjustment is reached. The sleeve 50 is then slid down over the halved-together spindle portions carries at its opposite end from the gear '56, a

gear, 60, the two gears 50 being so spaced as to mesh with a bevel gear '62 carried on a fitting 54 having a squared head 56 adapted to be engaged by a socket in an operating handle .68 which is provided with a crank 78 or. other means for rotating the same. .The

gears

54 and 56 are mounted in sill boxes 12 in the bottoms of which are located the thrust bearings 33 supporting the lower ends of the spindle portions 34. These boxes also carry bearings for the ends of shafts 58. At an intermediate portion of the sill, usually at the center thereof, is a gear box it which carries bearings 16 in which the adjacent ends of the shafts 58 are J'ournal'ed. Projecting from the front of the gear box is a bearing sleeve 18 in which the fitting 64 carrying the gear 32 is rotatably mounted. The end of the sleeve I8 projects through an opening in the front of the em, as shown at 80.

The jambs preferably incorporate the vertical boxes 84 in which the threaded spindles are mounted, such boxes preferably being provided with removable cover sections 86 which may be taken all for adjustment or lubrication of the spindles. The mullion 32 .is preferably provided with a double box having a removable cover 88 which encloses the adjacent spindles of two adjoining sashes.

Referring to Figures 7 to 10. this shows the operator as applied to a projected type of window. Each of the projecting sashes I is pivoted at its upper end to sliding head blocks 162 by pivots IN. The blocks I02 slide in guides in the window jambs. The windovvs are also provided with arms 106 which are pivoted at their lower ends by fixed pivots I08 to the window jambs. At their upper ends, the arms I are pivoted by pivots H0 to the sashes. For projecting and re tracting the sashes, operating arms or links I I2 are provided which are pivoted at their outer 'ends by pivots 'IM to brackets Ht on the sashes.

shoes I28 are attached to the nuts I20. At the,

upper ends of the boxes are bearing brackets 1'30 in which the upper ends of the spindles are journaled. The spindles are of multiple part construction, the parts of which may be longitudinally adjusted so as to provide for adjustment of the position of the operating nuts I20 at the two sides of each of the sashes, thereby enabling the sashes to be adjusted so as to open and close truly, even though the window frame may be slightly deformed while being incorporated in the building. The spindle sections may be provided with halved-together extensions I32 provided with interlocking teeth I34 and enclosed by a threaded sleeve I36 similar to the construction of the adjustable spindle shown in Figures .1 to 6.

Where a series of sashes are mounted one above the other, as. shown in Figure 7, the spindles are preferably made in sections, one section for each sash, and the several sections being relatively adjustable longitudinally, as shown in Figure 8. Guides may be'inounted at inter- 'vals so' as to guide the several sections, one such guide being'indica'ted at I31 in Figure 18. While of course it would be possible to provide a com plete separate operating unit for each s ash,, it is preferable to operate all of the sashesin a vertical series "from a single pair of sectional spindles. By making the sectional spindles adjustable, it is possible to associate the spindle sections in such a way that each of the sashes will be opened and closed properly when the spindles are rotated. If there were :no adjust;- ment, any irregularities in manufacturing or mounting might prevent one or more of the sashes from closing tightly when the othersash is closed. .1

In order to enable the operating .meanstol-be disconnected from any particular sash tar-sashes which it may be desired to leave closed, note of split construction may be utilized a's .shown in Figures '9 and 10. Such nuts are split along one side, the two split portions being secured together by threaded studs I38. To provide sufficient flexibilit between the. side, portions or the nut, slots are preferably formed there: in at the sides opposite to the split portions. To spread the nuts open so asjto disconnect them from the spindles, separating studsj lz may be employed, the clamping studs 1'38 being ,iirst loosened. I g

Figure 11 shows an alternative arrangement for adjusting the spindle sections. In this case. the spindle sectionsare held together with. a built I which slides in a vertical slot 156 in one of the spindle'sections. The spindle sections may be drawn together or moved apart by the right and left screw I48, the right and leftthreaded no tions ofwhichscrew into the ends "or the two mtjacent spindle portions.

For rotating the spindles, suitable gearing may be provided which may bethe same as the bevel gear arrangement mounted in the window sill, as

shown. in Figures 1, 2 and 3.

detail, it is to be understood that changes may be made therein and the inventionembodied in other structures. it is not,jtherefore, the intention to limit the patent to the s ecific constructions muse;

- trated, but to cover jtheiinvention broadly in whatever form" its principle may be'utili'zed;.j

I claim:

1. Window operating means for movablesashe comprising a threaded spindle mounted ateach swept the window, nut-member's mounted on acsavar on; operative,- connections .from theiirespe'ctive' nut memberstotheadjacent. side'sgof the sash, gearing mounted onthewindow structure forirotating the spindles in unison, each spindle comprising upper and ,lowerportions having overlapping notched ends of cylindrical section, and a sleeve having a cylindrical bore slidably mounted on and enclosing said ends, one part of the spindle being screw threaded and said-sleeve having a screw thread toengage therewith and "hold the sleeve in postion'to lock the spindle ends in "adjusted position said screw threaded part of the spindle being mounted in bearings located near each end thereof, one of said bearings being near the adjusting sleeve and overlapping ends of the spindle parts, so as to provide an adjustable spindle assembly held in accurate alignment.

2. In an operator for projected windows said window comprising frames including jambs and movable sashes in the frames, a vertically extending box connected to the window jamb, bearings therein, a rotary threaded spindle mounted in said bearings, a vertical guide mounted in said box, a nut for engagement with said spindle having a shoe mounted to slide in said guide, a link pivoted at one end to said nut and at the other end to the sash, gearing carried by the window structure for rotating said spindle, said nut being split through one side thereof, a screw engaging portions of the nut at each side of the split for drawing the halves of the nut together so as to cause the same to engage the threads on the spindle, and a second screw screwing in a portion of the nut for forcing the nut open so as to disengage the threads on the spindle.

3. In a window operator, a Window frame and sashes mounted in a vertical series therein, said window frame including jambs, a rotary threaded spindle mounted adjacent to at least one of said jambs, saidspindle comprising a series of screw threaded sections one for each sash, said sections being mounted in axial alignment and secured together in an axially adjustable manner by securing and adjusting means, said means comprising overlapping ends of half-round cylindrical section at the adjacent ends of the spindle sections, and a'sleeve having a cylindrical bore slidably mounted on and enclosing said ends, a bearing carried by the window frame for the upper end of the upper spindle section and a bearin carried by the window frame for the lower end of the lower spindle section, intermediate bearings carried by the window jambs,there being anintermediate bearing provided for each intermediate spindle section engaging said section near the upper end thereof, a traveling nut mounted on each spindle section and adapted to travel over a threaded part of said section between the sleeve at the lower end of the section and the supportbearing near the upper end of said section, means connecting each nut to its respective sash, and means forrotating said spindle about its, axis,

said adjustable connections between said sections comprising: a; series: of screwthreaded sections one for each sash, said sections being mounted,

in axial alignment and secured together in axially adjustable arrangement by securing and adjusting means, said means comprising overlapping notched ends of half-round cylindrical section at the adjacent ends of the spindle sections, and a sleeve having a cylindrical bore slidably mounted on and enclosing said ends, a bearing carried by the window frame for the upper end of the upper spindle section and a bearing carried by the window frame for the lower end of the lower spindle section, a series of intermediate bearings carried by the window jambs one for each intermediate spindle section engaging said section near the upper end thereof below the notched end thereof engaged by said sleeve, a traveling nut mounted on each spindle section and adapted to travel over a threaded part of said section between the sleeve at the lower end of the section and the supporting bearing near the upper end of said section, a link connecting each nut to its respective sash, means for rotating said spindle about its axis, said adjustable connections between said sections in cooperating with said end and intermediate bearings maintaining said shaft sections in alignment against the strains of torque applied by said spindle rotating means, and. lateral thrust due to action of said sash operating links on said nuts, a vertical guideway carried by at least one window jamb adjacent to a spindle mounted thereon, each nut incorporating a shoe mounted to slide vertically in said guideway' and assist in maintaining the alignment of said spindle sections.

5. In a window operator for projected sashes, a window frame and sashes mounted in vertical series therein, said window frame including jambs, a rotary threaded spindle mounted adjacent to at least one of said jambs, said spindle comprising a series of screw threaded sections, one for each sash, said sections being mounted in axial alignment and secured together in axially adjustable arrangement by securing and adjusting means, said means comprising overlapping notched ends of half-round cylindrical section at the adjacent ends of the spindle sections, and a sleeve having a cylindrical bore slidably mounted on and enclosing said ends, a bearing carried by the window frame for the upper end of the upper spindle section and a bearing carried by the window frame for the lower end of the lower spindle section, an intermediate bearing carried by the Window jambs for each intermediate spindle section engaging said section near the upper end thereof below the notched end thereof engaged by said sleeve, a travelling nut mounted on each spindle section and adapted to travel over a threaded part of said section between the sleeve at the lower end of the section and the supporting bearing near the upper end of said section, a link connecting each nut to its respective sash, means for rotating said spindle about its axis, said adjustable connections between said sections in cooperation With said end and intermediate bearings maintaining said shaft sections in alignment against the strains of torque applied by said spindle rotating means and lateral thrust due to action of said sash operating links on said nuts, a vertical guideway carried by at least one window jamb adjacent to a spindle mounted thereon, each nut incorporating a shoe mounted to slide vertically in said guideway and assist in maintaining the alignment of said spindle sections, and means for selectively engaging or disengag ins/each nut mm threaded engagemgpflwifih :ita

, .1; Aug: 6, 1935 Kraft 4.----- Aug; 13 1935 Mosley Dec. 28,?1937 Wiley May 16, 1939* FOREIGN PATENTS f v Country Date I GreatBritain d. Aug" 30, 1905 Australia Feb. 12,1940 Great Britain Sept.;25, 1936 France May'3. 19 37