US1713561A - Window friction adjuster - Google Patents

Description

- i May 21, 1929. $|BLEY 1,713,561

WINDOW FRICTION ADJUSTER I Filed Feb. l, 1927 2 Sheets-Sheet 1 May 21, 1929.

E. J. SIBLEY wmnow FRICTION ADJUSTER Filed Feb. 1, 1927 2 Sheets-Sh eat 2 Q60 zidoz 5: W attoz d saga- Patented May 21, 1929.

PATENT OFFICE.

EDWIN J. SIBLEY, OF WESTBUBY, NEW YORK.-

wmnowrnlc'rlon ADJUSTER.

Application filed February is to provide generally improved friction controlled means for controlling themovements of the sash. Another object of the invention is to provide a novel improved type of adjustable friction for this purpose.

Accordingly the invention is embodied in a window friction adjuster arranged and constructed as hereinafter set forth and as illus-. trated in the accompanying drawings in which n V I Fig. 1 is a view of-a closed sliding window sash equipped with an adjuster embodying the invention, with parts omitted and broken away.

Fig. 2 is a plan view showing the window opened with parts in section and parts broken a yi Fig. 3 is a detail view of parts shown in F igure 2 and looking in the direction of arrow 3 in said figure.

Fig. 4 is a detail View of Figure 2 looking in the direction of arrow 4.

Fig. 5 is a perspective view of a portion of the sash.

Fig. 6 is an enlarged detail view of friction means.

Fig. 7 is an enlarged tion means.

Fig. 8 is a sectional view on line 8-8 of Fi re 7. V

ig. 9 is a view in erspective showing the friction elements in isassembled position.

Referring to Figures 1 to 5 the reference numeral 10 denotes the window sash which fits between the jambs 11, 11. 12 indicates the window stool. The sash, or window, is adapted to be swung from the closed position in Figure 1 into the extreme open position shown in Figure 2, and may be positioned at any desirable angle between these two extreme positions. The friction adjuster for controlling and operating the window is constructed as follows.

The bottom of the sash is cut out as shown in Figure 5 to provide a longitudinal recess 13 and a transverse cut out portion at 14. In the recess 13 there is screwed to the bottom of the sash a sash plate 15 see Fig. 1, which extends from the edge 16 of the sash a distance along the bottom thereof. The inner end of said sash plate is pivoted at 17 to the the plan view of the fric- 1, 1927. Serial 110. 105,054.

friction elements designated in general by the numeral 18. To the outer end of the sash plate at 19 there is pivoted a sash arm 20. Theinner end of the sash arm is pivoted at 21 to the adjuster channel 22 secured to the window stool. The foregoin embraces the main elements of the window riction adjuster herein disclosed.

The operation is as follows :-The window is opened by. a slight pressure on the sash on the portion 25 furthest away from the adjuster, see Figure 1. As a consequence the window swings outwardly to the right on the pivot l7 which at the same time slides along the channel 22 by reason of the opening movement of the sash arm 20 which swings to the left in Figure2 thereby causing the pivot 17 to slide along the channel. During the openingmovement, the cut out portion 14 in the sash moves over the channel into the position shown in Figure 3. v

The window is closed by moving the inner portion 16 to the right in Figure 2 when, by virtue of the toggle formation of thetwo parts 15 and 20, the window will at the same time be swung leftwardly and inwardly into closed position in the direction of the arrow 30. When the window has been closed, the recess 13 will lie in over the adjusted parts as seen in Figure 1. Consequently the adjuster parts are hidden from view from the outside by reason of the depending ledge 26 on the sash. On the inside of the window there is provided a cleat or piece 28 to conceal the adjusted parts and to provide a ledge against which the window closes.

In order to control the window and hold it in any of its adjusted positions, friction elements such as 18 are provided. The friction is so arranged and adjusted, that when the window has been moved into any particular position, the friction means will hold it against ordinary pressure. However, should an extraordinary pressure be exterted against the window, the resistance of the friction elements will be overcome and the window will close. It is an object of this invention to pro vide a novel type of friction elements as follows, see Figures 6 to 9.

A'friction housing 31 is provided in the shape of a bracket adapted to slide in the channel 22. The housing comprises a bridge 32 which fits the opening of the channel and depending feet 33 which extend down into the channel. The bridge has an opening 34 for pivoting the sash plate 15 to it by the pivot 17.

Two friction shoes 35, 35 of babbit or similar suitable material is laid within" the housing and rests on thefeet 33. The shoes are adapted to be pressed laterally outward to engage Tie justment of the screw 37 of course efi'e'cts ad justment of the friction shoes against the channel. The shoes 35 may have a cutout portion at 38 to facilitate the flexing of the springs. The screw 37 is located so as to 'be conveniently operated upon when the window is opened. 7 v

In operation the friction elements slide within the channel engaging the sides thereof frictionally with a force depending upon the adjustment of'the friction springs and shoes. It will be noted that the force of the friction is laterally expansive only in that the shoes and wires are suspended on the feet 33 and raised from the bottom of the channel. This sides of the channeh construction makes for greater efficiency and less wear. A stop 40, Fig. 2, may beprovided to limit the leftward opening movement ofthefriction elements 18 and prevent dead looking or binding. The invention is not limited in its uses to windows, but may be applied to control the movements of other swinging elements.

Friction" means comprising in combination a fixed channel, a housing adapted to slide in said channel, said housing comprising a bridge member adapted to fillthe longitudinal channel opening and depending feet adapted to slide on the bottom of the channel, friction shoes supported within said housing on the feet thereof and provided with opposed cut out portions, wire springs laid between the friction shoes on the said housing feet and a screw in said bridge'member' adapted to force said springs apart and flex thesame within'the' cut out portions offthe shoes to cause the latter to frictionally engage the EDWIN J. sIBLriYL

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