US2353217A - Adjusting mechanism for window sashes - Google Patents

Description

y 1944- A. B. BROWN 2,353,217

ADJUSTING MECHANISM FOR WINDOW SASHES Filed March 22, 1943 H INVEN TOR. Aer/we Bean/1v,

Patented July 11, 1944 ADJUSTING MECHANISM FOR WINDOW SASHES Arthur B; Brown, Inglewood, Calif.

Application March 22, 1943, Serial No. 479,971

2 Claims.

My invention relates to screen doors of that type wherein the upper half of the door has a wire screen therein with two window sashes rotatable in the door frame to partially open or completely close the screen portion in accordance with the ventilation desired.

Itis the purpose of my invention to provide a simple, inexpensive, and easily operated adjusting mechanism for the window sashes, whereby they may be individually slid to any desired position in the door frame, and securely retained in such position until a further adjustment is desired.

My invention is structurally characterized by cords or chains, pulleys, reels, and clutches which normally secure the reels against rotation to maintain any adjustment of the window sashes, but which are manually operable to release the reels so that they can be rotated to actuate the cords in efiecting raising or lowering of the sashes to any desired adjusted position individually. Following attainment of the desired adjustment, release of the reels causes the clutches to automatically secure the reels against rotation so that the window sashes are retained in the adjusted position.

I will describe only one form of door, and one form of window sash adjusting mechanism embodying my invention, and will then point out the novel features thereof in claims.

In the accompanying drawing:

Fig. 1 is a fragmentary view showing in side elevation a door having window sashes therein, and one form of sash adjusting mechanism embodying my invention.

Fig. 2 is an enlarged transverse sectional view taken on the line 22 of Fig. 1.

Fig. 3 is a vertical sectional view taken on the line 3-3 of Fig. 2.

Fig. 4 is a View similar to Fig. 3 taken on a line 4-4 of Fig. 2.

Fig. 5 is an enlarged vertical sectional view taken on a line 5-5 of Fig. 1.

Fig. 6 is a view similar to Fig. 2 showing a modified form of the reel handle shown in Fig. 2.

Referring specifically to the drawing, my invention is embodied in a door of a screen type and which door comprises a rectangular frame, preferably of wood, which is divided by a transverse member I5 into a closed lower half section l6, and an upper open half section I! which is spanned by a wire screen E. Within the upper half section l! is a window frame W preferably made of wood and including two side members [8 and two end members IS, with guide strips 20 secured to the confronting sides of the side mem- 55 bers, and in which two window sashes S and S are mounted.

The guide strips 26 are formed with grooves 2| in which the vertical edge of the sashes S and S are slidably received to permit adjustment of the latter, and these sashes have glass panes 22 therein. The lower end member l9 may be formed with a slot 23 in which the lower edge of the lower sash S may be received when the latter is in closed position. The upper end member I5 is formed with a groove 23a in which the upper edge of the upper sash is adapted to be received when the latter is in its uppermost or closed position.

As best shown in Fig. 5, the window frame W and the door frame F may be formed with flanges 24 and 24a which are adapted to be secured to each other to retain the window frame within the door frame.

For adjusting the sashes S and S to partly open or completely close the door section ll, I provide an adjusting mechanism, which, in the present instance, comprises a pair of cords or chains 25 and 25a one end of which is secured at a central point to the upper end of the respective sashes S and S :5 extend downwardly along the outer edges of the side members I8, to reels R and R about which latter the cords are coiled, with their ends suitably secured to the peripheries of the reels.

Each reel R or R comprises a round body 28, preferably formed of wood, and having an enlarged outer portion 28a providing a handle which is preferably knurled to facilitate turning of the reel. The body 28 is formed with a recess 29 leading to an opening 30 which extends through the inner end of the reel body. A bolt 3| is received in the recess so as to extend through the opening and beyond the inner end of the reel body for extension through a web 32. This web 32 is provided in the side member [8 by forming the latter with a pocket 33 in which the reel is rotatably received. The bolt 3| is secured in the web 32 by a nut 34, while mounted on a bolt shank at the inner side of the bolt head is a coil spring 35.

For each reel a clutch K is provided which normally acts to secure the reel against rotation on the bolt and to thereby prevent winding or unwinding of the respective cord 25 or 25a. In the present instance, this clutch comprises a metal plate 36 secured to the inner end of the reel body 28 by screws 31, and a second metal plate 33 mounted on the bolt shank and secured against rotation thereon by being threaded on the bolt shank. The clutch plates 36 and 38 are formed on their confronting faces with radial grooves 36a and radial tongues 38a so that when the tongues are within the grooves the reel body cannot be rotated in either direction.

The spring 35 serves to urge the reel body 28 inwardly on the bolt shank so that the clutch plate 36 is pressed against the clutch plate 38, and manifestly the spring serves to releasably retain the tongues 33a within the grooves 36a, and thus the reel is releasably secured against rotation.

From the preceding description it will be clear that one window sash or the other may be adjusted vertically within the window frame by first pulling outwardly on the respective reel body 28 until the clutch plate 36 is disengaged from the clutch plate 38 to the extent of removing the tongues 38a from the grooves 36a, when the reel can be rotated in either direction to lower or elevate the respective sash through the respective cord 25 or 25a. Once the desired adjustment has been effected, the reel is released whereupon the pring 35 acts to cause engagement of the clutch plates so that the tongues 38a again function to secure the reel body against rotation. Thus the desired adjustment of the window sash is maintained.

The reels R and R in projecting from the surface of the door and window frame prevent the intimate stacking of a plurality of such doors for shipment or storage. To permit of such intimate stacking that portion of the reel body which projects from the surface of the window frame may be made separately and attached to the reel body when the window frame is put into use. This construction is illustrated in Fig. 6, wherein the attachable portion of the reel body or handle is designated at H and such handle is secured to the reel body by screws 39 applied as illustrated.

Although I have herein shown and described only one form of screen door, and one form of window sash adjusting mechanism, it is to be understood that various changes and modifications may be made herein without departing from the spirit of my invention and the spirit and scope of the appended claims.

I claim:

1. In combination, a window frame, a sash slideable in said frame, a mechanism for adjusting said sash vertically in said frame, comprising a cord connected at one end to said sash, pulleys for movably supporting said cord across the upper edge of said frame and down one edge of the latter, and a reel rotatably mounted on said frame, said cord at its other end being secured to and coiled about said reel, a bolt for rotatably supporting said reel on said frame, a clutch plate threaded on said bolt and engaging the frame to prevent rotation thereof, a second clutch plate secured to said reel, and a spring mounted on said bolt for urging said reel toward the first clutch plate so as to cause a second clutch plate to engage the former and secure the reel against rotation.

2. In combination; a window frame; a sash slidable in said frame; and a mechanism for adjusting said sash in said frame, comprising a cord connected at one end to said sash and movably supported about the 'frame; a member fixed in said frame, a reel having an axial opening therethrough for loosely receiving said member so that the reel is rotatable on the member and movable axially thereof, said reel and said member terminating flush with one side of said frame and said reel having the other end of said cord being coiled about and secured thereto, a clutch plate fixed on said member against rotation and axial movement, a second clutch plate secured to said reel, and a spring mounted on said member within said opening, for urging said reel toward the first mentioned clutch plate so as to cause the second clutch plate to engage the latter and secure the reel against rotation; and a handle secured to said reel and projecting from the reelside of said frame.

ARTHUR B. BROWN.

Images