US1858821A - Method of making sash sustainers - Google Patents

Description

INERS s-Sheet E. H. ELLISON lMETHOD OF MAKING SASH SUSTA Orgiglgl Filed April 27, 1926 2 Sheet lwentoz A50/V.

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May 17, 1932.

V 25 duced in large numbers at Patented May 17, 1932 f f EDWARD yH1.

MnNTs, To AUsTRAL WINDOW COMPANY, or NEW YORK,

MATNE Yoriginal application mea Aprn 27,

This invention. relates toimprovements in sash holders of the spring-pressedroller type wherein lthe rollers are permitted to roll Y freely as the window is raised, but are held v from rotation as the window is lowered,

whereby to exert frictional resistance. to the downward movement of the window, and to methods of manufacturing the same.

This yapplication isla division 'of'U. S

application serial No, manca-sied Api-1127',

ltis an object of myv invention to provide an improved one-way clutching arrangement for the roller and'to provider a roller 'housis ing for the roller and its clutch which may be readily yand inexpensively manufactured from `sheet metal. 1

It is a further object of my invention to A provide a method of manufacturing the sash i holder and particularly thefhousing therefor according to my invention with aV minimum of individual workmanship anda maximum of automatic, or semi-automatic'machine work, rwhereby the same may be proa relatively small -cost per unit, 4and without the employment of skilled-labor.

Itis afurther object provide an improved housing holder, and a method of manufacturing the same from sheet metal with the minimum wastage of material in forming the individual blanks from a strip', and generally, to cheapen the quality of the article. J

Still further obj ects vwill be apparent from the specification. i

The features of noveltywhich I believe to be characteristic -of my `invention arel set forth withV particulari-ty in the appended claims. vMy invention itself, however, both as to its underlying principles and-as to its practical embodiment, will best be under-- stood by reference to .the speciiicationand accompanying'drawings, in which,

Figure 1 is aside elevation 'of afwindotvV sash showing my improved sash holder Vapplied -to the edge thereof, aY portion only of the sash beingv shown; y p 5 A Figure 2 is a section taken on the line 2-2 METHODOF'MAKVING'SASH sUsTAINERs ofl my invention to forthe sashV front elevations ofthe. main the cost of manufacture. without impairing front elevatlons of the oating ,secured by means of al screw VAn abutment ELLrsoN, oNJAivinsTowN, NnwfYO'RK, AssreNon, BY nsNn -AssrGN- N, Y., A CORPORATION or 1926, Serialv No. 104,896. tlJivded.` and this applicationv led April V9,

192s. seran No. 268,506.

of Figure `1,'the roller housing-being shown inside elevation and in normal operative position; f f Figure 3 is a transverse section through the rollers 'and roller'housing showing the rela` tion of the floating roller, the Xed4 roller, and housing, the view being'taken on line -'ofFigurel; f. f` 'Y Figure 4 isa'horizontalsection taken..` on line a-Ll'of Figure-3;

Figure 5 is a plan view of a pair of blanks from which the roller'housing is constructed, before being cut fromthe strip, the upper blank being shown in full lines and the lower dotted; f f `Figures Gand 7- show theappearance-.of

the blankafter-the first bending operation thereof has been completed, 'Figure-6 lbeing a yfront elevation and Figure Y7 a section onV lines 7-7 of Figure 6. -x 'i Figures 8,.'9 and 10 are respectively, 4side and front-elevationsand a pl'an'ofV the partially completed" housing after thefsides of the same haveY been bent into shape; Figures 11,12- and'13 are respectively side and frontelevations and-a plan of the housing after the lrear/wall thereof has been ,brought into form; f

' Figure 14./is aside elevation of the'housthe side wall ats-'perforated for ing showing thel roller shaft, i

Figures 15 `andr16 are respectively side and roller; Figures 17 and 18 are respectively side and roller; f Figure 19 is a plan view of the yspring blank which is-part of the complete assembly;

Figure 2O isa sidevelevation ofthe' completel sash device.

In the'drawi'ngs, 1 indicates a windowsash the housing Sfof the rollerdevioe is posiend of a spring 4 the upper endof which is 5 to the sash. for the spring slightly above its flexing point is provided by the head of a. wood screw 6 sunk into the sash. The spring yis provided with 'an opemng .7 somewhat having a depression or 'cut-out :portion 2 `withiirits upright v'side edge within whlch vtioned', the housing being s-ecured to'the lower Astamp vof the housingf its center at a ..8 whileradius has `its center at 22 between .the axes ofthe two rollers, both radii being centered 1in the axes of the rollers when in the position shown smaller than thehead of screw 6 to allow a screw driver to be inserted through the hole into the slotted head of the screw to move the same for adjustment purposes.

The main roller is indicated at 8, the same being mounted on a suitable shaft v9 which passes through the side walls 10 of the housing. The housing has a rear wall` 11 provided with a downwardly extending tail-like extension 12 bent towards thefront end of the housing. The rear wall is formed ina manner to provide a gradually decreasing distance between it and the fixed roller 8 whereby a wedging space is formed for a floating roller 13.

V.- The floating roller tends to wedge between Athe main roller 8 and the rear wall 11 when the main roller 8 is turned in a clockwise direction as viewed in the drawings, or in other words, when the sash is being lowered. The main roller is thereby prevented from rotating and, inasmuch as the spring 4 presses the roller against the window casing, sliding friction will be exerted between the window casing and roller 8 as will be readily understood. Upward movement of the sashv will cause the roller 8`to rotate in a counter-clockl:wise direction and elevate the floating roller 13 sufficiently to prevent wedging of the same between the roller 8 and rear wall 11V of the housing as will likewise be readily understood. The floating roller may if desired'be providedV with serrations 14 preferably .spirally arrangedto give a better gripping actionto the same.

The manner of making the housing 3 will now be explained. Y The first operation is to from a sheet of metal a blank of the form shown in Figure 5. This blank consists of a body 15 having a downwardly extend- Ving part or tongue 16. spaced extensions or wings 17 on the opposite edge, and side portions 18. The first operation of bending the blank into form isto bend over the parts 17 as indicated in Figures 6 and 7 The next operation isto bend over the side wings 18 of the housing 3 as shown in Figures 8, 9 and 10. The rear wall 11 and lip `or extension 12 are then formed tothe shape shown in Figure 11 by pressing body 1 5 and extension 16. 'Referring to Figure 3, it will be seen that the inner surface of the rear wall hes inthe arcs of ltwo circles, having radii 19 andh 2O respectively. The radius 19 has point 21 beyond the main roller plane passing through the in VFigure 3.

. By referring to Figure 5, it will be seen that there will be practically no wastage of the sheet metal 30` from which the blanks are struck, except for margin. portion 31, if

thefdepthof tongue 16 and wings 17 are ing,

and 13 would be turned out.

equal, and if the width of tongue 16 is less than the space between wings 17. It is of course necessary to leave a small margin or space between blanks to assure a clean stam as will be readily understood. This economy of material results from the particular bending operations performed to transform the blank into final shape, which have worked outr to .produce this eect. That is to say, the disposition of the various wingsandltongues, or other extending portions ofthe blank, and the bending operations necessary with-any particular shape of blank and disposition of wings, are all interrelated and are related to the wastage of material in cutting blanks, and I have described what I believe to be the most economical arrangement a'nd process from all standpoints, producing the most economical product.

It will be seen that, in accordance with my z;

`othermachine which bends parts 18 into position and nally they may be fed into another machine which bends the rear wall 11 vto 'final form. vWhile Iv have spoken of feeding the blanks fromone machine into another, it will be` clearl that successive stagesl ofthe same machine may perform the various operations, Vin whichl case strip metal would be fed into the input of the machine andthe finished housing as shownin Figuresll, 12

If holes have been punched at the proper points in the blank, either before or after the various forming operations, shaft 9 may be inserted through one side wall 10, through roller 8 properly positioned and other side of wall 10, and retained therein 1n any suitable way as for instance, by forming a head on shaft 9 before insertion in the housing 3, and iattening the other and after the shaft is tening both ends. Floating roller 13, must of course be placed in the housing before mounted main roller 8 in position.

Spring blank 22 will be bent or otherwise formed to the proper shape, and'may be attached to housing 3 in anysuitable manner as, for example, by rivets 23 or welding, after which the device is ready for attachment to the window sash as shown.

The operationof the arrangement will be A' clear from the following description: Asthe sash is moved upward, main roller 8 turns in a counter-clockwise direction, as seen in Figure 3, thereby lifting floating roller 13,

.withthe result that main roller 8 turns freely 'i through the*4 properly positioned or by flat-f' These blanks may then $3.90

, rangement permits firmly and positively locked by the floating.

in a counter-clockwise direction. When it is attempted to rotate roller 8 in a clockwise direction, as by lowering the window, floating roller 13 is turned in a counter-clockwise direction, and passes downward in the housing. The rear wall is aV cam-like surface, which, considered from its upper end, gradually approaches the surface of the main roller 8, the lower portion of the `cam surface approaching the rollers surface more 4rapidly than the upper portion, since it is an arc of smaller radius. The size of the floating roller 13 is such between the main roller 8 and the surface of the rear wall 1 about midway the length of the latter as shown in Figure 3. This arthe main roller 8 to be roller as will now be readily appreciated.

It is to be noted at this time that the curvature of rear wall 11 as shown provides for a much more gradual wedging action by roller 13 than would take place if rear wall 11 were a surface normal to the diameter of main roller 8. This results in a more positive locking engagement of main roller 8, and decreases the possibility of failure of the sash holder to hold the sash in position, thereby producing an article superior to that having a. straight rear wall.

What I claim is:

1.l The method of manufacturing a housing for window sash sustainerswhich coinprises cutting an entire housing blank from` a sheet, bending a pair of portions of said blank through substantially 90", and bending another pair of portions ofv said blank, including those portions already bent, through substantially 90O toward each other to form top, side and rear walls, the body of said blank to form a surface concave inward. ,Y

2. The method of forming a housing for a window sash sustainer from a blank of greater width than depth and having a projecting tongue on one side and a pair of projecting spaced wings on the other, which comprises bending said wings into angular relation with saidbody, bending the sides of said body carrying said wings into spaced parallel relation with each other, and bending that portion of the blank between the spaced parallelY portions into an arc concave inward.

3. The method of forming a housing Jfor a window sash sustainerV which comprises forming from sheet material a blank of greater width than depth and having on one side a projecting tongue and on the other a pair of spaced projecting wings, the width of said tongue being less than the space between said wings, bending said wings into angular relation with said body, bending the sides of said body carrying said wings into that it begins to wedgel and bending spaced parallel relation with each other, and bending said body between said parallel portions into an arc concave inwardly.

4. The method of forming a window sash sustainer which comprises forming from sheet material a blank of greater width than depth-and having on one side. a projecting tongue and on the other a pair of spaced. projecting wings, the width of said tongue being less than the space between said wings, andthe ldepth of said wings and said tongue being substantially equal, bending said wings into angular relation with said body, and bending the sides of said body carrying said wings into spaced parallel relation with each other. Y

5. The method of forming a housing for a window sash sustainer which comprises forming from sheet material ablank of greater width than depth and having on one side a projecting tongue and on the other a pair of spaced proj ect-ing wings, the width of said tongue being less than the space between said wings, and the depth of said wings and 'said' tongue being substantially equal, bending said wings into angular relation with said body, bending the sides of said body carrying said wings into spaced parallel relation with each other, and bending said body between said parallel portions into an arc concave inwardly.

housing for a 6. The method of forming a housing of the Y class described which comprises forming from 'sheet material a blank of greater width than vdepth and having on one side a projecting tongue and on the other a pair of spaced projecting wings, the width ofsaid tongue' being less than the space between said wings, and the depth of said wings and said tongue being substantially equal, enabling the tongue of one ,blank t0v be material in the space between the ears of the preceding blank, bending said wings into angular relation with said body along a horizontal axis, bending the sides of said body towards each other along a parallel vertical axis carrying said wings into end to end relation with each other, and bending said body between said parallel portions into an arc, concave inwardly. Y

In testimony whereof I aiix my signature.

EDWARD H. ELLISON.

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