US1622949A - Sash-operating device and lock - Google Patents

Description

` 1,622,949 March 29,1927. N. Q' KELSO SASH OPERATING DEVICE AND LOCK 2 Shetswsheet l Filed Oct. 16. 1923 ATTORN EY 1,622,949 March 29, 1927- N,v Q KELSO PERATING DEVICE. AND LOCK Filed oct. 1e, 192s 2 sheets-sheet 2 Patented Mar. 29, 1927.

i UNITED STATES PATENT OFFICE. A

NY LA Q. KELSO, OF OKLAHOMA CITY, OKLAHOMA, ASSIGNOR OF ONE-IIALF TO JOHN A.

SEMKE, OKLAHOMA CITY, OKLAHOMA.

SASI-I-OPERATING DEVICE AND LOCK.

Application filed October 16, 1923.

rl`he object of this invention is the provision of means whereby a window sash or the like is permitted to slide in its casing, and to be locked in either its raised, partly raised or closed position.

To the attainment of the foregoing, the invention consists in the improvement as hereinafter described and deinitely claimed.

In the drawings Figure 1 is an elevation with parts in section showing the elements constituting the improvement so arranged as to permit of the free sliding of a window sash.

Figure 2 is a similar view showing the sash locked against movement in either direction.

Figure 3 is a sectional view on the line 3-3 of Figure 1.

Figure 4 is a sectional view similar to Figures 1 and 2 showing the sash locked to prevent the downward but to allow the upward movement thereof.

Figure 5 is a fragmentary perspective View of a stile of the sash.

Figure 6 is a sectional view von the line 6--6 of Figure 4.

Figure 7 is a perspective view of the slidable member which influences the corru gated wheel.

In the drawings the numeral 1 designates a slidable sash, and 2 a sutlicient portion of the casing in which the sash moves.

In the present instance one or both of the vertical stiles of the sash has its outer edge grooved longitudinally and seated in the groove there is a rack bar preferably in the nature of a transversely corrugated strip 3. The rack bar is, of course, secured in the groove.

The casing 2 has a pocket Vlet in the sid-e thereof in which the sash 1 slides, and in this pocket there is secured a casing broadly indicated by the numeral 4. The casing has its front open and its rear wall arranged at opposite outward inclinations toward its center, and its said central portion rounded, as at 5. The open face of the casing is closed by a plate 6 which is centrally provided with a substantially rectangular opening 7 arranged opposite the grooved stile of the sash 1.

Freely arranged in the casing and projecting through the opening 7 in the face plate thereof, there is a wheel 8 that is provided with peripheral teeth or corrugations 9.

Serial No. 668,922.

The wheel 8 normally rests on the inwardly curved head 10 of a rack 11, and the teeth of the rack are engaged by a toothed wheel 12. The toothed wheel is, of course, journaled in the casing, and one of its shafts or trunnions is provided with a socket 13 that valigns with a round opening 14 through the side ofthe casing. Through this opening there is designed to be inserted a key (not shown) having a squared end to be received in the squared socket 13 whereby the wheel 12 may be turned to move the head carrying rack 11 vertically in the casing. When the rack is moved to bring its head 10-to the position illustrated in Figure 1 of the drawings the toothed wheel is so arranged as to permit of the free sliding of the sash in either direction. W'hen the rack member 11 is further moved in a vertical direction, as disclosed in Figure 2 of the drawings, the wheel 8 will bind against the upper inclined wall 15 in the back of the casing so that movement of the sash in either direction is prevented. Then the rack is lowered, as disclosedin Figure 4 of the drawings, the toothed wheel 8 is in binding engagement with the lower inclined wall 16 of the casing and the wedging engagement therebetween will prevent the turning of the wheel and the lowering of the sash. The sash, however, can be raised when the parts are in this position.

l/Vith my improvement, the employment of the usual weights is entirely dispensed with and the sash is arranged for free sliding in the casing. However, with my improvement the sash may be locked in either its raised, partly raised or lowered position. The construction is comparatively simple, may b e cheaply manufactured, marketed and installed, and while I have illustrated and described a preferred embodiment thereof it is to be understood that I may make such changes therefrom as fall withinvthe scope of what I claim.

Having described the invention, I claim 1. A means for locking and controlling the movement of a vertically slidable member which includes a guide for the member, a casing in the guide `having its rear wall inclined inwardly from the center thereof, a toothed wheel in the casing projecting therethrough and contacting with the slidable member and normally gravitating to the bottom of the casing for frictionally engagment in either direction.

2. rllhe combinationwith a vertical slidablemember and a Yguide therefor, of a casing let intheguide and having` an open face opposite-.the:slidable member, the rear Wall :Qfthe casing beingiroundedand fromthence k being inclined inwardly in opposite direc- !20 .tonsito thetop andy bottom thereof, a grav- .ity influenced toothed vWheel in the casing normally engaging; the lower inclined Wall thereof and the slidable member for holding the Said slidable member from movement in one direction, a heeded rack having: a toothed Shank in the casing' and underlying the Wheel, a key operated Wheel engaging the rack and designed when rotated` to raise the said rackto bring the toothed Wheel in the center of the casingr and out of frictional engagement with either lthe casing or the slidablemeniber or to further movethesaid `toothed Wheellto cause a binding action between said Wheel, the upper portion vof the casino; and the slidable member or for holding; the slidable member ,from movement 1n .either direction.

In testimony whereof lI afIiX mysignature 4NYLA. yQ. KELSO.

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