Knock-down window frame

Claim 2

A completely reversible and separable four-piece window frame which has no separately identifiable top or bottom or front or back for use in a concrete wall poured between spaced forms for receiving at least one window, said frame comprising: a first pair of separate identical rails constituting a header member and a sill member, each of said first pair of rails being symmetrical and having: a center rib extending inwardly when the frame is assembled and forming an abutment for supporting the window; and a web extending from each opposite side of said rib and constructed to taper away from the center of said frame to facilitate placement of the window against said rib, each of said webs terminating in a flange extending outwardly to form a surface for abutting said frame to the forms; and a second pair of separate identical rails constituting opposite side jambs, each of said side jambs being symmetrical and having: a center rib extending inwardly when the frame is assembled and forming an abutment for supporting the window; and a web extending from each opposite side of said rib and constructed to taper away from the center of said frame to facilitate placement of the window against said rib, said web terminating in a flange extending outwardly to form a surface for abutting said frame to the forms; and cooperating means on said respective first and second pairs of rails which are interlockable for rigidly connecting said first and second pairs of rails together to form a complete and symmetrical And reversible window frame.

Claim 3

A window frame, as claimed in claim 1, further including: means on at least one of said rails for attaching said frame to the forms prior to the pouring of the concrete wall, said attachment means being formed integrally in said flange of at least one of said rails and includes at least one prong bent to extend substantially perpendicular to said flange.

Claim 4

A completely reversible and collapsible window frame for use in a concrete wall poured between spaced forms for receiving at least one window, said frame comprising: a first pair of identical rails constituting a header member and a sill member, each of said first pair of rails being symmetrical and having: a center rib extending inwardly when the frame is assembled and forming an abutment for supporting the window; and a web extending from each opposite side of said rib and constructed to taper away from the center of said frame to facilitate placement of the window against said rib, each of said webs terminating in a flange extending outwardly to form a surface for abutting said frame to the forms; a second pair of identical rails constituting opposite side jambs, each of said side jambs being symmetrical and having: a center rib extending inwardly when the frame is assembled and forming an abutment for supporting the window; and a web extending from each opposite side of said rib and constructed to taper away from the center of said frame to facilitate placement of the window against said rib, said web terminating in a flange extending outwardly to form a surface for abutting said frame to the forms; and means for rigidly connecting said first and second pairs of rails together to form a complete and symmetrical and reversible window frame; and a plurality of resilient brackets for removably retaining at least one window sash in said window frame, said brackets including: a central U-shaped portion receivable over said rib having spaced legs engaging each side of said rib respectively; a first strip extending from one of said legs at right angles thereto and terminating in a first in-turned flange spaced from said one of said legs to form a first recess for receiving an edge of a window sash and a screen in face-to-face relationship; a second strip lying in the plane of said first strip and extending from the other of said legs at right angles and having a second in-turned flange spaced from said other of said legs to form a second recess for receiving the edge of a storm sash; and a handle extending outwardly at right angles from said second flange lying in a plane parallel to the plane of said strips, said handle being movable toward said window frame to bend said bracket so that said second recess is enlarged for removal of the storm sash and then being movable in the opposite direction toward the center of said window frame to enlarge said U-shaped portion so that it can be slid over said rib to remove said brackets with said window sash and screen therein.

Claim 5

A completely reversible and collapsible window frame for use in a concrete wall poured between spaced forms for receiving at least one window, said frame comprising: a first pair of identical rails constituting a header member and a sill member, each of said first pair of rails being symmetrical and having: a center rib extending inwardly when the frame is assembled and forming an abutment for supporting the window; and a web extending from each opposite side of said rib and constructed to taper away from the center of said frame to facilitate placement of the window against said rib, each of said webs terminating in a flange extending outwardly to form a surface for abutting said frame to the forms; a second pair of identical rails constituting opposite side jambs, each of said side jambs being symmetrical and having: a center rib extending inwardly when the frame is assembled and forming an abutment for supporting the window; and a web extending from each opposite side of said rib and constructed to taper away from the center of said frame to facilitate placement of the window against said rib, said web terminating in a flange extending outwardly to form a surface for abutting said frame to the forms; and means for rigidly connecting said first and second pairs of rails together to form a complete and symmetrical and reversible window frame; and a plurality of resilient brackets for removably retaining at least one window sash in said window frame, said brackets including: a central U-shaped portion receivable over said rib having spaced legs engaging each side of said rib respectively; a first strip extending from one of said legs at right angles thereto and terminating in a first in-turned flange spaced from said one of said legs to form a first recess for receiving an edge of a window sash and a screen in face-to-face relationship; a second strip lying in the plane of said first strip and extending from the other of said legs at right angles and having a second in-turned flange spaced from said other of said legs to form a second recess for receiving the edge of a storm sash; and a handle extending outwardly at right angles from said second flange lying in a plane parallel to the plane of said strips, said handle being movable toward said window frame to bend said bracket so that said second recess is enlarged for removal of the storm sash and then being movable in the opposite direction toward the center of said window frame to enlarge said U-shaped portion so that it can be slid over said rib to remove said brackets with said window sash and screen therein.

Claim 6

A completely reversible and separable four-piece window frame which has no separately identifiable top or bottom or front or back for use in a concrete wall poured between spaced forms for receiving at least one window, said frame comprising: a first pair of separate identical rails constituting a header member and a sill member, each of said first pair of rails being symmetrical and having: a center rib extending inwardly when the frame is assembled and forming an abutment for supporting the window; and a web extending from each opposite side of said rib and constructed to taper away from the center of said frame to facilitate placement of the window against said rib, each of said webs terminating in a flange extending outwardly to form a surface for abutting said frame to the forms; a second pair of separate identical rails constituting opposite side jambs, each of said side jambs being symmetrical and having: a center rib eXtending inwardly when the frame is assembled and forming an abutment for supporting the window; and a web extending from each opposite side of said rib and constructed to taper away from the center of said frame to facilitate placement of the window against said rib, said web terminating in a flange extending outwardly to form a surface for abutting said frame to the forms; a plurality of slots adjacent the ends of one of said pairs of rails including a slot extending transversely across each of said flanges of said one of said pairs of rails; and a plurality of tabs adjacent the ends of the other of said pair of rails receivable in said slots and bendable to lock said tabs in said slots and shoulders formed in said flanges of said other of said pair of rails, said shoulders of said respective flanges on said other of said pairs being receivable in said transverse slots in said respective flanges on said one of said pairs to form rigid corner connections.

Claim 7

A completely reversible and separable four-piece window frame which has no separately identifiable top or bottom or front or back for use in a concrete wall poured between spaced forms for receiving at least one window, said frame comprising: a first pair of separate identical rails constituting a header member and a sill member, each of said first pair of rails being symmetrical and having: a center rib extending inwardly when the frame is assembled and forming an abutment for supporting the window; and a web extending from each opposite side of said rib and constructed to taper away from the center of said frame to facilitate placement of the window against said rib, each of said webs terminating in a flange extending outwardly to form a surface for abutting said frame to the forms; a second pair of separate identical rails constituting opposite side jambs, each of said side jambs being symmetrical and having: a center rib eXtending inwardly when the frame is assembled and forming an abutment for supporting the window; and a web extending from each opposite side of said rib and constructed to taper away from the center of said frame to facilitate placement of the window against said rib, said web terminating in a flange extending outwardly to form a surface for abutting said frame to the forms; a plurality of slots adjacent the ends of one of said pairs of rails including a slot extending transversely across each of said flanges of said one of said pairs of rails; and a plurality of tabs adjacent the ends of the other of said pair of rails receivable in said slots and bendable to lock said tabs in said slots and shoulders formed in said flanges of said other of said pair of rails, said shoulders of said respective flanges on said other of said pairs being receivable in said transverse slots in said respective flanges on said one of said pairs to form rigid corner connections.

Claim 8

A window frame, as claimed in claim 4, including: means on at least some of said rails for attaching said frame to the forms prior to the pouring of the concrete wall wherein said attachment means is formed integrally in said flange of at least one of said rails and includes at least one prong bent to extend substantially perpendicular to said flange.

Claim 9

A window frame, as claimed in claim 4, including: a plurality of resilient brackets for removably retaining at least one window sash in said window frame wherein each of said brackets includes: a central U-shaped portion receivable over said rib having spaced legs engaging each side of said rib respectively; a first strip extending from one of said legs at right angles thereto and terminating in a first in-turned flange spaced from said one of said legs to form a first recess for receiving an edge of a window and a screen in side-by-side relationship; a second strip lying in the plane of said first strip and extending from the other of said legs at right angles and having a second in-turned flange spaced from said other of said legs to form a second recess for receiving the edge of a storm window; and a handle extending outwardly at right angles from said second flange lying in a plane parallel to the plane of said strips, said handle being movable toward said window frame to bend said bracket so that said second recess is enlarged for removal of the storm window and then being movable in the opposite direction toward the center of said window frame to enlarge said U-shaped portion so that it can be slid over said rib to remove said brackets with said window and screen therein.