Abstract: An insulated sliding window assembly includes a compression seal between a mobile sash and the window frame. A locking mechanism cams the mobile sash to move both parallel to and transverse to the plane of the window frame, causing the sash to compress the seal and to be positively locked to the window frame. The moveable sash of the invention includes rollers which roll on guides. The sliding window assembly also includes mechanisms for releasing and pivoting the exterior moveable sash to a maintenance position.

Abstract: A window sash is mounted for downward and inward tilting by a pair of grooved spools which project laterally into channels formed in the side jambs of the window. The grooves in the spools track along vertical ribs formed in the channels and normally move freely along the ribs to permit free up and down movement of the sash. When the sash is tilted downwardly and inwardly, the side walls of the spool grooves frictionally pinch the ribs to restrict up and down movement of the sash and to help stabilize the tilted sash.

Abstract: A window sash formed preferably of plastic and having a pair of horizontal upper and lower rails and vertical stiles. The rails and stiles are extruded to form a principal outside edge wall for the sash and a plurality of additional walls and bosses within each of the rails and stiles perpendicular to said outside wall, including a pair of walls forming a channel with said outside walls. The stiles and rails are diagonally cut at the ends to form a miter joint. The miter joint is integrated by a single screw passing at each corner from the rail into the stile. One or more of the bosses and walls within the rail forms a support for the screw at each corner which will prevent angling of the screw. Each of the stiles has at least one boss for receiving the screw, said boss extending longitudinally of the stile. The single screw at each corner is therefore anchored against any angling both with respect to the rail and the stile and thereby forms a secure, non-slip miter joint.

Abstract: The invention relates to tilt-out window assemblies in which a window sash may be rotated from its normal vertical position causing a slide block connected to a spring balance assembly to be locked into place to prevent release of the spring balance assembly on tilting or removal of the window sash from the window frame. The slide block rides in the jamb channel in which the window sash normally slides up and down and incorporates a rotatable locking cam. The locking cam is rotated on tilting of the window sash so as to force a set of locking members against the sides of the window frame jamb channel to engage the block into a fixed position in the channel. The window sash is operatively connected to the locking cam to provide rotation thereof to lock the slidable block. The window sash may be removed from the frame and from engagement with the locking cam if desired.

Abstract: An arrangement for tiltably mounting a lateral portion of a window sash in a track of a window frame for sliding longitudinally of the track and for tilting out of the plane of the window frame includes a mounting slide received in the track and including a main portion having an opening that receives a mounting region of a shank portion of a bearing element. The main portion further has two arms which depend from a top region of the main portion and have holding regions which embrace a spreading region of the bearing element. The spreading region includes two flats in an otherwise cylindrical outline, these flats facing the holding regions while the window sash is in the plane of the window frame such that retaining regions of the arms are spaced from side portions of the track and the mounting slide is free to move along the latter.

Abstract: A unitary pivot corner member having a separate pivot pin for engaging the sash balance of a double-hung sash window assembly and a slide guide integral with the member for riding in a guide rail of the master frame jamb of the window assembly. A pair of the same members are installed at opposing bottom corners of a sash window. Each of the slide guides rides in a guide rail and functions to retain the engaged guide rail in square alignment relative to the sash window whereby to eliminate gapping between the sash window and master frame jamb as the sash window is slided.

Abstract: A tilt window includes a frame with a sill, a header and a pair of jambs, each extruded from rigid plastic material. Each member is formed of multi-hollow construction for overall strength and rigidity. The jamb comprises, in cross-section, a base and an inner leg, an outer leg and center leg projecting from the base to form inner and outer channels. A portion of each center leg and outer leg projects to form a sash engagement panel. The sashes are held within the respective channels by sliding balance shoes and latch members, and may be tilted inwardly away from the sash engagement panels for cleaning.

Abstract: A window includes a hollow extruded sash and a hollow extruded frame. The arrangement includes a pair of sashes which may slide up and down to permit opening the window and which may pivot horizontally to facilitate cleaning the window. In addition to the locking means generally provided at the top wall of the lower sash, locking means are provided along the side walls to provide additional stability for the arrangement while maintaining a tighter seal. The side walls include slots into which open-faced housings are snapped for receiving the locking members.

Abstract: A universal single hung window including a frame and at least one sash therein movable in the plane of the frame and tiltable about a lower edge thereof out of the plane of the frame, whereby the window may be used as a single hung or a hopper window in one position thereof, and in another position thereof may be used as a glider window. The window structure includes a thermal barrier between a prime window and a storm window. The window is provided with balance foot and lower sash guide structure to permit pivoting of the sash about the lower edge thereof and support of the sash by a sash balance if desired. The balance foot and lower sash guide structure includes a separate balance foot member constructed to be connected to a sash balance in a jamb of the frame and a separate sash guide member pivotally engaged with the balance foot member and secured to a sash stile at the lower end thereof.

Abstract: A pivot shoe 10 has a bite spring 30 operated by a cam 40 for interlocking pivot shoe 10 with a jamb channel 15 to resist upward movement under the bias of a sash balance system when a sash 20 connected to a pivot shoe 10 by a pivot bar 22 is pivoted away from vertical. Pivot shoe 10 has a resin body 11 shaped to guide on the sides 16 of jamb channel 15 and cam 40 is pivotally housed within body 11 and slotted to receive pivot bar 22 so that cam 40 pivots with sash 20. The jamb end of cam 40 is profiled and bite spring 30 has a follower 32 engaging the cam profile 47. Bite spring 30 is mounted on the jamb side of pivot shoe 10 and upwardly inclined toward the jamb channel bottom 17. When sash 20 pivots from vertical, cam 40 tilts bite spring 30 outward so that its upper edge bites into channel bottom 17 and locks pivot shoe 10 against upward movement.

Abstract: An improved counterbalance lock mechanism for a window assembly which includes a manually turned lock pin fitted within a stationary housing member located in the window jamb. The lock pin may be rotated into a first position subjecting a slide block to the influence of the mechanism and a second position which isolates the slide block from the counterbalancing effect.

Abstract: The invention relates to a removable tilt-out window construction in which a window may be rotated 90.degree. from its normal vertical position and such rotation causes a slidable block connected to a spring counterbalance to be locked in place to prevent violent release of the spring upon removal of the window. The invention describes a weather strip (30) having a slidable block (68) with a rotatable locking cam (90). Slidable block (68) rides on tracks (64 and 66). Locking Cam (90) can be rotated so that it forces tracks (64 and 66) against the sides of slots (110 and 112) to frictionally engage the slidable block (68) into a fixed position. A window sash (22) is connected to the locking cam (90) to provide rotation thereof to lock slidable block (68). Window 22 may be removed from engagement with locking cam (90) if desired.

Abstract: Sash guide and balance lock structure in pivoted window structure, which window structure includes an elongated hollow jamb member having a slot in one side thereof and an adjacent pivoted window sash, which sash guide and balance lock structure comprises a pivot shoe positioned within the jamb member for reciprocal movement therewithin having an opening therethrough aligned with the slot in the jamb member and including resilient tab portions extending centrally from the rear side of the pivot shoe and toward the bottom thereof, on each side of the opening terminating in cam portions, and a cylinder cam including a cylindrical shank having an axially extending non-circular opening therein extending through the opening in the pivot shoe and a flat head having a resilient periphery on the cylindrical shank having notches in opposite portions.

Abstract: An insulated multiple component single plane building structure portal closure embodying as components thereof a portal closure frame with glazing frame transversely disposed parallel tracks aligned the opposite sides thereof and adapted through use of glazing frame hardware in combination therewith to slidably receive therein one or more glazing frame sashes or panels in either a vertically or horizontally operable window or door assembly wherein the respective sash or panel members thereof are displaceable from a contiguous abutting single plane configuration within the portal closure frame track structure for parallelly slidable displaced movement for opening structure inward pivotal tilting, and removal therefrom or replacement thereto, wherein the entire portal closure frame and glazing frame structures incorporate complementary to the single plane secured closure configuration thereof transverse thermal barrier connectors intermediate the building structure interior and exterior exposure surfaces thereo

Abstract: Each sash of this double-hung tiltably-removable sliding sash window installation slides in an elongated channel sash guide containing a sash balancing spring anchored at its upper end thereto and connected at its lower end to a lock carrier upon which is rotatably mounted a pointed locking lever. This lever cooperates with an eccentric lock-operating pin mounted on the pivot boss of a block mounted in the lower portion of the groove in the opposite side edges of each sash in such a manner that when the sash is moved around its pivot bosses into the plane of the window frame, the eccentric pin on each side is automatically moved laterally relatively to its respective locking lever so as to push the locking lever out of its locking position, thereby releasing each of the opposite sash-balancing springs into its sash-balancing position.

Abstract: One-piece member with a cam-shaped periphery serves as both a slide and a tilt-lock for a window sash which is slidable vertically in a window frame and is tiltable with respect to the window frame. A thin, flat, elongated spring leaf has its lower end attached to the combined slide and tilt-lock member and has a spirally wound upper end fastened to the window frame. The window frame conceals and protects the unwound length of this spring.

Abstract: A tilt-in window assembly of the type wherein the sash is conventionally held only at the top and bottom between extruded window frame side rails, previously allowing the sash to be bowed inwardly by heavy wind forces. The extruded window frame is now provided at its side rails with protrusions extending for the entire height of the frame. The sash has side flanges which cooperate with the side rail protrusions to limit the inward bowing of the sash so as to prevent the sash weather-stripping from disengaging from its normal sealing contact surfaces, thereby preventing external air from passing by the weather-strippping.

Abstract: This invention relates to a weather strip and balance assembly for a window of a tilt sash type. The assembly includes a mounting plate for mounting the balance assembly thereon with a weather strip being clipped thereto and supporting the sash in a sliding and sealing manner. The weather strip has a pair of curved supporting ridges which mount the sash at conventional grooved surfaces along the stiles of the same and a recessed divider portion between the curved ridges in the weather strip provides for mounting and movement of the coupling pins which connect the balance assemblies to the sash and permit tilt of the sash on the weather strip. The mounting members on the sash for coupling the pins thereto provide mating keyed surfaces such that the pins rotate with the sash. These mounting members also include guide surfaces which couple the sash in a closed position and include the provision of a sweep lock member to secure the sash in a closed position.

Abstract: A window construction comprising a master frame and a pair of glazed window sashes which are double-hung in the window frame for normal operation and are provided with means to permit inward tilting of the sashes for cleaning and servicing of the same as may be required. The master window frame and both of the sashes mounted therein are each formed of an assembly of sections having the same hollow cross-sectional shape throughout the lengths thereof to provide not only the master frame but also each sash with a perimetrally continuous plenum of confined air which effectively serves as a thermal insulating barrier. Each of the window sashes is fitted on its opposite side edges with hollow thermal insulating spring-pressed weatherstripping members which respectively resiliently engage and made weather-tight contact with vertically extending runways provided therefor in the opposite side rail members of the master frame.

Abstract: Universal window structure which may be used as a single hung window, as a hopper window and as a right or left hand glider window without alteration is disclosed. Mulling means for securing a plurality of the window structures together, retaining clips for securing a screen thereto, false muntin structure, hurricane clips and piggyback storm window structure therefor and window trim structure for use therewith are specifically disclosed along with unique glazing strips, an insert for supporting sash balance structure, sealing strips and corner inserts, sash pivot structure, lock structure, sash guide and tilt release structure and hopper lock means for retaining the window sash in a plurality of separate tilted hopper positions. The frame of the window structure is constructed to permit rapid, accurate assembly with a minimum of low tolerance parts and to this end includes frame jamb adaptor extrusions.

Abstract: This invention relates to a balance spring lock for tilt out windows in which the balance spring is positioned in the jamb channel and connected through a sash cord to a block member and to the frame. The sash cord is directed over a sheave and either through an aperture in the block or guided along the surface of the block to be clamped against the block or within the block upon rotation of a shaft member therein coupled through a pin to the sash. The clamping action takes place through an eccentric surface on the shaft member through a cam follower operated by the shaft member, or through a pivoted lever attached to the shaft member. All variations of the clamping action operate with rotation of the shaft member caused by tilt of the window.

Abstract: A side camming balance spring lock adapted to be slidably mounted in a jamb channel of a window frame which incorporates slidably mounted camming members in the side of the same operated through flat and curved surfaces on a shaft to effect the locking action. The shaft includes a notch in which the connecting pin for the sash is positioned to effect rotation of the shaft on tilt out of the sash for the locking function. A removable plug closes an aperture in the lock above the shaft notch in which the balance spring connection is positioned. Removal of the plug permits removal of the sash from the lock as well as the disconnection of the balance spring therefrom.

Abstract: Universal window structure for use as a single-hung window, a hopper window, or a right or left-hand glider window and having a box frame and at least one movable sash is disclosed.An improved mull cover for securing a plurality of the universal window structures together, sash guide and tilt release structure for permitting tilting of the movable sash out of the plane of the window structure, and sash guide and pivot structure for the movable sash are also disclosed, together with an improved sash balance shoe, improved locking structure for the movable sash, improved glazing structure, improved weather stripping, structure for maintaining the weathertightness of the window structure during high winds, and a combination screen retainer and movable sash seal. The window structure of the invention may be installed from the inside of a window opening by means of unique installation clips and can be installed from the exterior of a window opening in conjunction with a unique installation bracket.

Abstract: Tiltable window construction having metallic sash and frames. There is disclosed a window construction adapted for manufacture from metallic components such as extruded aluminum, arranged for embodiment as a double-hung window, capable of simple and rapid tilting inwardly of the building for washing and/or other treatment. The sash are also capable of quick and easy removal in their entirety from the window frame but are tightly and reliably sealed thereto when in use for the effective prevention of the entry of wind and water. Each sash of the window is held by simple latch mechanism in normal sliding condition and when tilted inwardly automatically becomes locked into the then-existing position.

Abstract: An insulated multiple component single plane building structure portal closure embodying as components thereof a portal closure frame with glazing frame transversely disposed parallel tracks aligned the opposite sides thereof and adapted through use of glazing frame hardware in combination therewith to slidably receive therein one or more glazing frame sashes or panels in either a vertically or horizontally operable window or door assembly wherein the respective sash or panel members thereof are displaceable from a contiguous abutting single plane configuration within the portal closure frame track structure for parallelly slidable displaced movement for opening structure inward pivotal tilting, and removal therefrom or replacement thereto, wherein the entire portal closure frame and glazing frame structures incorporate complementary to the single plane secured closure configuration thereof transverse thermal barrier connectors intermediate the building structure interior and exterior exposure surfaces thereo