Abstract: A cabinet with a movable glass wall has a double sided foam adhesive tape connecting the glass to a plate forming part of the hinge, slide suspension or other opening and closing linkage. The tape is resiliently compressible and avoids strains tending to damage the glass during opening and closing movements. Cabinets with a plurality of glass sides have extruded edging strips which provide surfaces for bonding to the edges of the glass disposed at 45.degree. to the main surfaces of the strip. The edging strip stiffens and reinforces the glass, allowing the use of thinner glass sheets and provides a convenient means for attaching the sheets together at corners.

Abstract: A pulley guard for a slidable fence gate having elongated horizontal rods supported on a plurality of pulleys rotatably mounted on fixed horizontal stub shafts, comprises a housing surrounding the pulley and preventing inadvertant finger access to the periphery of the pulley. Appropriate notches are provided in the walls of the housing to provide clearance for the stub shaft and for the elongated horizontal gate rod with which the pulley cooperates.

Abstract: A bearing device for sliding leaf of closures, such as doors or windows, having a slide inserted under the lower rail of the sliding leaf and provided with at least a bearing element freely rotatingly mounted onto a horizontal spindle. The slide of this bearing device has recesses capable of receiving elastically distortable elements to guide and support the spindle onto which is mounted the bearing element.

Abstract: A one-piece sealed, hollow, steel sliding screen door frame and method of fabrication thereof is described. A flat steel strip is diecut to produce 45.degree. miter cuts, each having an opposing flap. The cut strip is rolled to produce a frame stock having an essentially rectangular profile. Longitudinal edges of the strip are folded together, crimped and bonded during the rolling and form a screen channel in the frame stock. The frame stock is bent at right angles at the miter cuts such that the flaps tuck under the miter cuts, forming a rectangular door frame. Epoxy is used to bond the flaps to the inner surfaces adjacent the miter cuts. A screen door assembled using the door frame includes self-centering wheel assemblies.

Abstract: A patio door system uses a metal frame attached to a door jamb. A door panel to be installed in the frame includes a metal sill member and a metal jamb member. A pair of fixed door panel adapters is provided for insertion into the panel sill member when the panel is to be used as a fixed door panel. When the door panel is to be used as a sliding panel, a pair of wheel assemblies is installed in the panel sill member, thus permitting a single panel to be adapted as either a fixed panel or as a sliding panel.

Abstract: A roller assembly is provided as an easily replaceable assembly for use with a sliding door. The roller assembly includes a roller or wheel mounted in a roller housing and carried in a cantilevered manner at one end of a leaf spring. The opposite end of the leaf spring is permanently bent to form a hook which is engageable with a mounting tab on an upper or lower door edge through a mounting insertion gap in the door edge such that the leaf spring extends across a bearing tab. When the hook is engaged on the mounting tab the roller is carried in a roller receiving pocket in the door edge such that the leaf spring bears against a bearing tab. The leaf spring allows the roller to move into and out of a roller receiving pocket to accommodate imperfections and obstructions in a stationary track on the door frame in which the roller travels.

Abstract: An adjustment apparatus for supporting a slidable door is disclosed that has a bar-like pivotable frame member. A pair of track followers, such as rollers, are mounted adjacent the ends of the frame member. A door has upper and lower edges, and opposite side edges. The upper door edge is pivotally connected to a central portion of the pivot frame member. A pair of stems are pivotally fastened to the frame member adjacent the ends of the frame member. Each stem is also mounted in a sliding relationship with respect to the side edges of the door. In this way, the frame member can pivot with respect to the upper door edge. When installing the slidable door, this pivot action allows the door to be flush against the frame structure, even though the wall or frame may be out-of-plumb. Final adjustment of the apparatus simply requires tightly fastening a central bolt and at least one screw.

Abstract: A sliding door roller apparatus includes a replaceable wheel assembly that can be easily removed and replaced on a holding member. The wheel assembly includes a resilient housing, a wheel, and an axle on which the wheel turns. The resilient housing has a pair of opposite facing sidewalls, each having an integral end portion that extends toward and overlaps the other. Each end portion includes at least one locking finger that is positionable within an opening on the holding member. The resiliency of the housing permits the locking fingers to be placed or removed from an opening located on the holding member.The apparatus also includes an adjustment mechanism that positions the wheel assembly outside the sliding door frame to permit the frame to be properly aligned within its door opening.

Abstract: A sliding door frame and carriage assembly which includes a pair of upper corner connectors to clamp together the upper corners of the frame. Such connectors also serve as upper guides or glides. The assembly also includes a pair of lower corner connectors which clamp together the lower frame corners and mount wheels for rolling support of the door. Each connector fits within adjacent slots in the rails and stiles to hold the connectors securely in position, and simultaneously clamp together the associated rails and stiles. Each connector is characterized by a rail connector spanning section which spans a portion of the outside wall of the associated rail to stabilize the connector in position and, in the case of the lower connectors, better distribute the weight of the door.

Abstract: The present invention relates to sliding doors for closure of entranceways and to companionway entrance closure for watercraft in particular. A sliding plastic door panel is provided and the door panel, being translucent, admits light into the interior of a cabin area. The entire door assembly is mounted on the outside of a boat cabin and does not take up space in the cabin interior, but allows more usable cabin space within.Upper and lower plastic tracks are provided for movement of plastic roller trucks therein. The door panel, the two open tracks and the roller assembly are non metallic and non-corroding and the rollers do not require lubrication. The door panel and other parts do not require painting and provide a track and roller arrangement in which the weight of the sliding door panel is directed downward against the bottom of the track, and provides a sliding door that is smooth and easy to use in operation, and very attractive in appearance.

Abstract: A wheel retainer prevents a wheel of a sliding or bypass door from jumping off of the floor track on which the wheel rolls. Portions are provided on the lower portion of the retainer for slidably engaging a downwardly facing portion of the track for inhibiting upward movement of the retainer from the track. Preferably this in the form of an L-shaped hook having a base wider than the opening of a dovetail slot in the track and a neck narrower than the opening of the slot. The retainer can then be installed only by pivoting the retainer relative to the track for inserting the hook. The retainer also has portions for engaging an upper portion of the wheel to prevent it from being lifted from the track. The preferred embodiment is a D-shape with an arcuate portion over the top of the wheel and barbs that prevent the retainer from accidentally being dislodged from the wheel.

Abstract: The roller assembly of this invention comprises a grooved wheel attached to a perforated metal tape or spring which is movable over a sloping track by means of a toothed gear wheel or sprocket.

Abstract: An openable covering structure for any desired location which is particularly well adapted for use in conjunction with a swimming pool, comprising several covering elements extending above the basin of the swimming pool and movable relative to one another. Each covering element comprises two parallel arches between which extend transparent or translucent covering plates. To make the opening operations easier and to extend the opening possibilities, each arch of a covering element has, in at least one of its front vertical faces, at least three parallel and superimposed grooves which extend over the entire length of the arch and in which are respectively fitted at least three covering plates mounted in the grooves so as to be capable of transversely sliding.

Abstract: There is disclosed a refrigerated display cabinet having a refrigerating chamber and a mechanical chamber, and an access opening into the refrigerating chamber that is adapted to be opened and closed by a transparent cover panel sliding longitudinally of the access opening. The cover panel is mounted on guide rail mechanisms each of which comprise a frame with wheels and rail elements. Each frame is provided with two sealing flanges which extend vertically and horizontally from one edge of the frame into sealing engagement with the rail element when the transparent cover panel is closed thereby closing or sealing the gap between the frame and the rail elements to prevent leakage of cooled air from the refrigerating chamber.

Abstract: The track for the panel of a sliding door or window confines a locating device with two resilient leaves which have first end portions secured to the bottom part of the track and second end portions normally extending upwardly into the path of movement of the rim of a wheel at the underside of the panel. The second end portions of the leaves are disposed between the first end portions and define a gap wherein the lowermost portion of the rim comes to rest after the rim has been caused to roll over one of the leaves and to be arrested by the upwardly extending second end portion of the other leaf. If the panel is to be shifted to a different position, it is pushed with a force which suffices to enable the rim of the wheel to depress the second end portion of one of the leaves whereupon the rim rolls over the one leaf toward a different position. A foot can be clamped to the track to positively prevent the panel from moving beyond a selected position.

Abstract: A slider (41) for guiding the top of a sliding door (12) in a channel (42) comprises spaced cheeks (56) between which extends a rib (59) which engages one side of the channel, and flexible tongue (60) which flexes between the cheeks and is thereby biased into engagement with the other side of the channel. Another embodiment of door guide has a pair of wheels (113, 114) having enlarged rims at one end for engaging opposite walls of a door guiding channel. One of the wheels is inverted relative to the other. Thus, the rim of one wheel is at a higher elevation than the rim of the other wheel.

Abstract: A system for protecting exterior building walls against damage from pressure waves generated by explosions on the building exterior. Exterior walls are constructed of multiple wall panels mounted in a circumferential framework of building elements formed by columns, a top surface of the floor below the wall and bottom surface of the floor above the wall. A series of guide tracks mounted in the circumferential surfaces extend perpendicular to the wall panel towards the interior of the building. Guide blocks on the perimeter of the wall panel engage the guide tracks so that the wall panel can slidably move along the tracks when a predetermined threshold force is applied to the exterior of the panel. An adjustable brake, on cooperating with the guide blocks and tracks, permits an accurate setting of the threshold force under which inward movement of the panel commences as well as the relatively constant force that acts during sliding.

Abstract: An abutment member is mounted on a pair of shafts on which upper and lower rollers are rotatably carried. The abutment member is abuttingly engageable with a wall of a guide rail when both or one of the rollers is caused to move a predetermined amount toward the wall of the guide rail.

Abstract: The invention falls within the technical field of windows closed by sliding sashes, that for the purpose are provided with grooved wheels adapted to run along rails integral with a lower crosspiece of the fixed frame forming, together with the sashes, said window.The wheel is mounted on a pivot which is supported by means connected to a box-shaped element and designed for enabling a vertical displacement of said post. Provision is also made for means adapted to readily adjust the position of the pivot relative to the box-shaped element which is disposed within the post of the sliding sash.

Abstract: A shower partition with a horizontal guide rail includes a door assembly displaceable in the guide rail by guide roller mounted on eccentric pins. Each eccentric pin is arranged in a hole provided through the upper edge of the door assembly. In the case of a shower partition of this kind, the purpose to be accomplished is to simplify vertical adjustment of the door assembly at low structural cost, and to ensure that the adjusted position is reliably secured. For this purpose each eccentric pin is slid in an elongated slot of the door assembly through an end opening. Also provided is a connector member having arms which bear upon opposite engagement surfaces of the eccentric pin in order to secure the latter against rotation.

Abstract: For slidably mounting a panel such as a door on a railed track, a roller assembly including a roller having a peripheral groove for sliding on the track rail, housing structure for mounting the roller in the panel, and a rigid metal stabilizer element carried by the housing structure and having a grooved or notched extremity for overlying the rail, in tandem relation to the roller, to prevent derailment of the roller. The stabilizer element is vertically slidable in the housing structure so as to ride smoothly along the rail, accommodating local irregularities or variations in rail height.

Abstract: A system of sliding doors commonly called patio-doors, having a wooden structure and well adapted for a household use. This device comprises a wooden rectangular frame receiving two glazed panels, one of which is sliding. The latter is supported on its lower portion by rollers. In the upper portion of the movable panel, the guiding system is constituted by a spring-loaded runner, preferably a channel whose two flanges extend into two parallel grooves on the top of the slidable panel. To remove the sliding panel from the frame supporting it, the operator lowers the retractable runner; this releases the upper portion of the panel from the frame and allows it to swing outwardly. A safety device is provided to prevent accidental removal of the upper portion of the sliding panel from the frame. Also described is a patio-door unit comprising two sets of glazed panels, each having one sliding panel.

Abstract: Broadside displacement of sliding patio doors from their building framework for removal from the threshold track upon lifting of the doors in attempts at unauthorized entry is prevented with the use of downwardly-extending leg portions at each side of the door roller wheel assemblies, which leg portions extend downwardly of each side of an upstanding threshold track projection upon which the roller wheels ride. In one embodiment of the invention, the roller wheel assembly leg portions terminate in mutually inwardly-directed hook portions received in slightly spaced relation below rectangular shoulders defined by a rounded head formed along the upper end of the upstanding track projection, thereby preventing removal of the roller wheel assemblies from the threshold track for unauthorized entry.

Abstract: A closure with sashes includes a closure body, an inner sash enclosing around the closure body and including a first upper rail, a first lower rail, a first left stile and a first right stile and an outer sash matchable with the inner sash, including a second upper rail, a second lower rail, a second left stile and a second right stile and adapted to be mounted on a wall of a building wherein there exists a characteristic that the first upper rail is identical to the first lower rail in shape.

Abstract: A support system for a gate assembly including a frame having an upper rail adapted to be mounted adjacent an opening in a fence and actuatable between an open position exposing the gate opening and a closed position overlying the gate opening comprising an elongated hollow channel member defining a trackway having a downwardly depending elongated slot in the lower face of the channel member, a longitudinally extending side face of the channel having a configuration conforming generally to the contour of the upper rail of the gate, at least one bracket having a portion conforming to the contour of the upper rail and bolt means securing the upper rail of the gate assembly between the channel member and bracket, and at least one truck having roller means mounted on a post comprising part of the fence assembly adjacent the gate opening engageable in said trackway permitting movement of the gate assembly relative to the opening between open and closed positions.

Abstract: A sliding door assembly for bathtubs, shower stalls and the like. The assembly includes at least one door panel, an elongated support rail member, and support mount structure for slidably mounting the door panel to the support rail member. The support mount structure includes an elongated carriage member attached to the door panel and a pair of support rollers mounted to the carriage member and engaging the support rail member. The rollers are free to move lengthwise along the carriage member as the door is open and closed. However, structure is provided to stop the lengthwise motion of the rollers just prior to the door panel reaching a closed position to brake the motion of the door panel as it is moved to the closed position.

Abstract: An improved sliding cover assembly for converting the open body of a truck, or the like, to a closed body. The assembly comprises an articulated-type cover slidably mounted in a pair of parallel tracks of C-shaped cross-section, each of the said tracks having a lengthwise coextensive channel communicating with the interior space of the open body. The cover includes a plurality of rectangular panels successively disposed adjacent to one another and extending across said open body. Each panel includes a first semi-cylindrical edge portion and a second, semi-cylindrical edge portion having a radius larger than the radius of the first edge portion, said first edge portion being concentric with, and rotatably received by, said second edge portion of the adjacent panel, the successive panels preferably being alternately wide and narrow, whereby the cover may be wound into a space-saving rolled configuration for storage when the cover is slid to its open position.

Abstract: A panel assembly for a door or window including a generally quadrilateral frame member having a panel member operatively connected therewith for movement between a closed position and opened positions wherein the frame member is either tilted about one edge thereof or moved laterally offset parallel to itself. Latch means provided between the panel member and the quadrilateral frame include at least one releasing arm and an angular housing, with the angular housing being connected at a corner of the panel member with two adjacent members thereof and with the releasing arm having a panel-side end at which the releasing arm is connected with the angular housing.

Abstract: A device for suspending and guiding an oblique-displacement sliding door, especially for railroad cars, comprises a rolling element which is attached to the door by means of a connecting member (4) and comprises two rollers (Gs, Gi) mounted within a tubular guide track (6). The rolling surfaces (6a, 6b, 6c, 6d) of the guide track (6) are located in oppositely-facing relation on each side of the connecting member (4) and at an oblique angle with respect to this latter. The profiles of the two rolling surfaces and of the two rollers are adapted to each other so as to prevent translational displacement of the rolling element (2) in a plane transverse to the guide track (6).

Abstract: A thermally insulating window having two spaced parallel removable sashes in side by side relation, closely spaced apart meeting rails on the sashes and an intermediate rail member sealing the space between the meeting rails.

Abstract: A sensor activated, automatic sliding door assembly for installation in building entrance openings for automatic opening and closing of sliding doors. The roller track, drive belt pulley, door carrier, and door guide allow adjustment to compensate for distortion of the system as a result of stress caused by use or expansion and contraction of the building. The rotatable safety hinges, one-way hinges, door stops and electrical interruptors provide integrated safety devices to the automatic door assembly. Linear sliding devices such as linear bearings provide improved movement of the sliding doors on a linear track.

Abstract: A screen or patio door adapted for sliding along a track in a doorway or other opening includes a generally rectangular frame of extruded aluminum channel having four generally L-shaped corners, at least two of the corners positioned along the bottom of the door and adapted to slide along the track. Each corner is formed by a 90.degree. miter cut leaving a web of aluminum material bridging the cut, and thereafter bending the channel about the web to form the corner. The corners all include a corner lock extending through the channel and bridging the miter, with fasteners extending through the channel. The fasteners extend through and expand the corner lock to fill the channel, thereby forming an inside wall bridging the miter cut and unitizing the corner construction.

Abstract: A sliding door assembly is secured against intruders and sealed against air leakage and dust penetration by a device universally applicable to sliding door structures which is rigid, generally channel-shaped and fixedly securable to the door frame between a stationary door and a jamb and has a flange carrying a weather sealing strip in contact with the sliding door.

Abstract: A carrier member mounted on a door window is positioned between the first and second opposed facing spaced apart legs of a door mounted track. The carrier member has an axially extending cylindrical bore communicating between the track legs. First and second bearing balls are mounted within the cylindrical bore and roll against one another and respectively against the first and second track legs to provide low friction precision guided movement of the window between the open and closed positions. Tracks are preferably provided at both the front and rear of the window. One of the tracks extends vertically through the window opening. First and second carrier members and associated rolling balls are mounted on the window in vertically spaced relation and roll along semi-cylindrical grooves extending vertically along the track legs to define the path of rolling movement and support the window against pitching movement and against fore and aft movement relative the door.

Abstract: A door roller provided with an engagement arm which is capable of being engaged with, by an engaging member attached to an upwardly bent end of the engaging arm, a guide groove formed with a downward opening longitudinally along a lower frame of a window structure for preventing a sliding door from an accidental removal. An inner housing retaining a tire shaft is rotatably pivoted to an outer housing of the door roller via another axis parallel to the tire shaft. The engagement arm which is engaged with the inner housing by way of an engaging mechanism is disposed freely movable upwards and downwards in relation to the outer housing. The engaging mechanism is located at a further position than the tire shaft from the another axis such that the engagement arm may be moved vertically, when the tire has been ascended or descended by a predetermined amount, by a larger amount than or an approx. equal amount to the predetermined amount in relation to the outer housing.

Abstract: A doorsill apparatus for a sliding glass patio door or other exterior door is described including a heat insulating spacer fastener for securing inner and outer sill members of metal against relative movement. The heat insulating spacer fastener is preferably a synthetic plastic clip member. The plastic clip member is of a general W-shape and fastens the inner and outer doorsill members together by clipping onto first and second projections extending from such sill members. In addition, a moisture barrier member of synthetic plastic material is provided over the joint formed by the insulating spacer clip and extends along the upper surfaces of the sill members to prevent moisture from condensing and forming frost on the inside of the glass patio door.

Abstract: A sliding glass door assembly comprises a frame of rigid plastic, for example polyvinyl chloride, extruded in the form of a plurality of adjacent hollow sections. The upright and horizontal frame members are attached together by screws extending horizontally through the upright members into longitudinally extending screw bosses in the horizontal frame members. The frame members include depending guides for supporting door panels, at least one of which slides open and closed. The door panels are formed of vertical and horizontal sash members which support at least one, but preferably several, glass panels. The sash members are also formed of plural hollow sections that cooperate for strength, and are attached by screw bosses.

Abstract: A sliding door employing a runner wheel assembly of the invention typically comprises a frame of hollow extruded frame elements. The hollow section of the bottom frame element is provided with two such wheel assemblies, one at each end, supporting the door for sliding movement, each assembly comprising a wheel retainer member and a wheel carrier or support member releasably secured to the retainer member. In normal use the wheel carried by the wheel support member projects through an opening of the bottom frame element to cooperate with a track. When the door is lifted from the track the wheel support member can be pivoted relative to the retainer member to a position from which it can be removed and replaced through the opening.

Abstract: A glazed assembly is formed of a frame assembly and a sash assembly that is slideable in the frame assembly. The frame assembly is formed of at least four frame parts that have identical cross-sectional shapes. The sash assembly is formed of at least four sash parts that have identical cross-sectional shapes, and a glazing. The frame parts present engaging elements and guide grooves on the two sides thereof facing and opposite the sash assembly so that multiple glazed assemblies can be formed arranged in building block fashion both vertically and laterally of the one frame assembly. The sash parts also present engaging elements and guide grooves; all of said engaging elements have the same cross-sectional shape as a "T", while all of the guide grooves have identical cross-sectional shapes; and the guide grooves and engaging elements are intermating so that a glazed assembly may be formed of the fewest number of differently shaped parts.

Abstract: A metal sash-window has been slidably arranged in a wooden window-frame without the intermediary of a metal window-frame mounted in the wooden window-frame.

Abstract: A building kit for vertically or horizontally slidable windows which includes a multiple-chambered blind frame profile member fashioned of a synthetic resinous material which is identical for all four sides of the windows and sash profiles of hollow synthetic resinous material which are identical for all four sides of the window as well as an optional horizontal running track. The blind frame profile is fashioned so as to be planar on a side facing the sash except for approximately a centrally arranged projecting guide tongue strip extending in the longitudinal direction of the blind frame profile. An open undercut guide groove is provided in the blind frame profile member followed on each side of the chamber. To seal the sash along the corresponding inside of the window the blind frame is connected with a U-shaped end profile of a synthetic resinous material which is at most half of the width of the blind frame.

Abstract: A tiltable roller assembly attachable to a door or window sash includes an attachment frame mountable on the door or window sash, a tilt frame loosely mounted in the attachment frame and tiltable in a first direction, a roller frame pivotally mounted on the tilt frame, and a roller rotatably supported on the roller frame. A pair of spaced blocks are mounted in said tilt frame, with the roller frame disposed between the spaced blocks, and there is an adjustment screw threadedly extending through a selected one of the blocks into abutting engagement with the roller frame. The roller frame is pivotably adjustable relatively to the second frame in a second direction transverse to the first direction, in response to turning of the adjustment screw. The attachment frame includes a pair of spaced sidewalls between which the tilt frame is disposed, there being spring means acting between one of the sidewalls and the spaced blocks and normally urging the tilt frame against the other sidewall.

Abstract: A mass transit vehicle having a sliding door, the sliding door being mounted at its lower end, by means of a rider, on a linear bearing rod extending outwardly from a bracket mounted on the lower vehicle frame. At its upper end, the door is guided, through a rider, by a linear bearing rod suspended from a bracket which is mounted to the upper vehicle frame.

Abstract: Sliding door structure including an outer frame, at least one fixed and one movable door panel, and a screen door, said frame including a head having a single, inwardly extending movable door panel guiding fin and all mitered corners which corners include integral, offset abutment structure for insuring proper alignment of the corners in assembly, improved weather stripping at both the top and bottom rail of both the fixed and movable door panels, bottom adjusting structure for the movable door panel, and two-member glazing structure for the door panels capable of resisting high wind force and permitting glazing of the door panels from the inside. The frame and door panels include substantially universal and reversible members to reduce inventory. Resilient bumpers, a weather stop and prowler lock structure permitting locking of the sliding door structure of the movable door panel in a number of selected positions are also disclosed.

Abstract: There is described a roller assembly which is adapted to be snapped into and out of a channel of a sliding frame closure which device is used to adjust the effective height of the closure relative to an aperture frame in which it is installed.

Abstract: An improved glass panelled fireplace screen has sliding doors within a frame. The joints between the doors and the frame and between adjacent doors provide novel seals for effectively impeding the passage of air when the doors are in closed position. The screen includes thermostatically operated means which automatically opens the draft control when a fire is burning in the fireplace and which closes the draft control when the fire is out.

Abstract: An elongate frame member of uniform cross-section is provided for a combined door and window frame assembly. The said frame member is adapted to divide an outer perimeter frame into two areas, one to accommodate an opening window and the other to accommodate a sliding door in its closed position and comprises a rigid supporting portion, an elongate recess of L-shaped cross-section to receive one edge of the window and an elongate flange connected to the supporting portion and spaced therefrom by an intervening web, said flange being so positioned, in the assembled frame, that a part of the sliding door when closed can engage between the flange and the supporting portion to facilitate a draught proof seal.

Abstract: Modular case and frame sections for assembly into a self-supporting case and frame for lifting and/or sliding doors and/or windows, the case section being a hollow generally rectangular element having a pair of main chambers and a smaller chamber therebetween, first recess means on said element and guide means received therewithin. Said frame is defined by a pair of hollow side parts and a hollow bridging part, second and third recess means defined by said side and bridging parts, said second recess means being larger in cross section than the first recess means and capable of receiving connection means, closing means and carriage means therein.

Abstract: A multi-sash pocket window is designed to accomodate sash of differing widths and in varying combinations. The window frame structure is adapted to receive inserts for retaining the sash in place and which are selected to accomodate the sash width and combinations being used. At the sill, the inserts have rails for supporting the sash rollers and upright sections that straddle the lower ends of the sash. Ribs are provided for retaining the inserts in place and various example are shown.

Abstract: A door assembly including a door associated with a guide which is disposed in an orientation perpendicular to the plane of a door opening formed in a wall, and a guide follower mounted on the door to run along the guide. In one embodiment the guide follower is rotatably driven by the rotation of a handle mounted on the door through a transmission. In another embodiment, the door may be manually pushed or pulled along the guide.