US2202740A - Sash balance - Google Patents

Description

May 28, 1940. J. A. KRISH 2,202,740

SASH BALANCE Filed Sept. 14, 1938 In venior A itomeys Patented May 28, 1940 2,202,740

UNITED STATES PATENT OFFICE SASH BALANCE John A. Krish, T'orrington, Conn.

Application September 14, 1938, Serial No. 229,965

2 Claims. (01. 292 '15) The present invention relates toasash balance The edge of the sash is also formed with a and has for its primary object to provide a device recess I4 adapted to accommodate a roller supadapted to produce frictional engagement 106- P Said oll Suppo t embodying Wing D tween the edges of the sash and the sash guide to tions l6 positioned in the channel l to prevent yieldably hold the sash in its adjusted position. rotary movement of the roller support in the re- 5 A further object is to provide a sash balance cess I4. The roller support also includes an designed to eliminate the use of sash cords and opening ll, the edges of which are bent inwardly weights, and which also prevents binding between as shown at l8 to provide a mounting for the opthe sash and the sash guide due to swelling or posite ends of a pin I9 upon which a roller 20 is from paint. journalled. The roller is provided with flanges 10 A further object is to provide a device of this 2| adjacent its ends and between which the guide character of simple and practical construction, 9 is positioned, the roller being yieldably held in which is efiicient and reliable in use, neat and atengagement with the guide by a coil spring 22 pctractive in appearance, relatively inexpensive to sitioned in the recess l4 and bearing against the manufacture and otherwise well adapted for the roller support to urge the same outwardly.

purposes for which the same is intended. In the modified form of invention. illustrated Other objects and advantages reside in the dein Fig. 4 the roller support designated at 23 has tails of construction and operation as more fully one edge portion provided witha return bend as hereinafter described and claimed, reference beshown at 24 for engaging the end convolution 25 ing had to the accompanying drawing forming of the spring 26 to secure the spring to the roller 20 part hereof, wherein like numerals refer to like support.

parts throughout and in which- It is believed the details of construction and Figure 1 is a fragmentary sectional view manner of operation of the device will be readily through a window frame and sash showing the understood from the foregoing without further sash balance in position thereon. detailed explanation. 25

Figure 2 is a fragmentary edge elevational view What is claimed is: v v of the sash. 1. A sash balance fora window sash wherein a Figure 3 is a perspective view of the guide for guide is provided for the sash, said sash balance the sash and comprising a'roller support adapted for mount- 30 Figure 4 is a sectional view of a modified form ing in the sash, said support being formed of 30 of mounting for the roller, sheet metal and having portions struck inwardly Referring now to the drawing in detail wherein spaced parallelism, a roller rotatably supported in for the purpose of illustration I have disclosed on said inwardly struck portions and spring a preferred embodiment of invention the numeans engaging the support for yieldably urging meral 5 designates a window frame to the inner the roller into engagement with the guide. 35 surface of which are secured the spaced guide 2. A sash balance'for a window sash wherein a strips 6 and I. Also secured to the inner surface guide is provided for the sash, said sash balance of the frame 5 is a metallic Weather strip 8, prefcomprising a roller support adapted for mount- ,erably formed'of a pair of duplicate sections as ing in the sash, said support being formed of 40 ShOW in 3 0 the i e of a d sheet metal and having portions struck inwardly 40 O S udi an angular guide b 9 p for in spaced parallelism, a roller rotatably supported POSiliiOning in the Vertical Channel formed in on said inwardly struck portion and spring means the edge portion of the sash H, one of said guide engaging the support for yjeldably urging th ribs being provided for the lower sash while the roller into engagement with the guide Said other of said ribs is provided for the upper sash. t having an edge portion t upon itself d 45 One Of the Vertical edges of each Of the Weather projecting between the convolutions of the spring strips 8 is also bent angularly as shown at l2 and t secure t spring to the support.-

cooperate to form the parting strip l3 between the respective sash. JOHN A. KRISH.

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