30 Vintage Brass Air-Tite Window Stays - Anti-rattling Device

Air-Tite Window Stay Co. Chicopee Mass

US Pat. 2.187.412 

I found one reference to this company in 1950

And an online  patent search brought this:

1940 J. B. BENSON ANTIRATTLING DEVICE Filed Nov. 2, 1938 INVENT OR. /E4103; 5.9mm

- ATTORNEY Patented Jan. 16, 1940 PATE NT OFFICE 

ANTIRATTLING DEVICE John B. Benson, Pittsfield, Mass.

Application November 2, 1938, Serial No. 238,328

2 Claims.

This invention relates to improvements in an antirattling device for windows and the like.

It is an object of this invention to provide a novel device which may be positioned in the frame or sash of a window or the like and is of such construction as to effectually eliminate rattling of the windows.

It is another object to provide a device which may be inserted in a window frame or a window sash or the like in such a way that .it will not only be invisible to the ordinary observer, but also out of reach to him as well, it being sunk into and within the window frame or sash.

A still further object of my invention is to provide a unique device of the character referred to which includes a casing having a movable member associated therewith which is adapted to prevent the window With which the device is associated from rattling while still permitting the window to be movably adjusted as may be desired. As a special feature, the device is adapted to obviate the need for pulleys and weights now commonly employed.

A still further object is to provide an improved antirattling device which may be made more economically and with fewer operations, both with respect to the manufacture of the parts as well as in assembling thereof, than prior devices known in the art. As special features, the parts, once assembled, cannot be readily separated from each other, either accidentally or otherwise.

Devices heretofore known all have the common objection that, in order to operate them, buffer members in the form of rollers have to be used,

. 35 which members, while they may serve to prevent the window from rattling, nevertheless do not always effectively prevent undesirable vertical movements of the windows relative to their sashes.

Accordingly, I have devised novel means whereby these difficulties are overcome and I accomplish this by the provision of a device which obviates the need for buffer members in the form of rollers. ...

There is more information at a google patent search.