Pivotable window sash assembly
AssigneeInsul-Lite Window Manufacturing, Inc.
InventorAnthony Makarowski
Life of this patent
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Abstract
A tiltable window sash mounted in a channelled window frame having a T-shaped bar projecting from the sash into the window frame channel, with the wings of the T-Bar engaging the inside of the window frame channel so that sash to frame alignment is maintained. The bar simultaneously provides a pivotal axis about which the sash is tilted. The bar engages a sliding pivot shoe located in the window frame channel to provide a guide for sliding of the sash. The pivot shoe has a cam operated dial acting brake; the cam is coupled to the T-shaped bar, so that the sash is tilted; the cam operates a first brake preventing sliding of the tilted sash, and when a predetermined angle of sash tilt is reached, a second brake is operated by the cam preventing further tilting of the sash, thus supporting the sash in a tilted position.
Claims9
An apparatus for mounting a tilt window sash to a channeled window frame, comprising a pivot shoe, said pivot shoe having a side with a recessed area facing the sash, said pivot shoe being slidably located in the channel of the window frame, and a T-Bar having an elongated body with inner and outer ends and a pair of radially extending wings near the outer end of said body, the inner end of said body being adapted for mounting to the window sash, the outer end and wings of said T-Bar projecting from the sash into said pivot shoe so that the wings of said T-Bar lie rotatably within the recess of said pivot shoe in the window frame channel, the body of said T-Bar providing a pivotal axis for tilting the sash, the outer end of said body engaging said pivot shoe and said wings engaging the window frame channel to maintain alignment of the window frame and sash assembly.
Dependencies are inferred from the claim text.