Abstract: A tilt window balance shoe assembly is used with a double hung window and provides three directional locking. The balance shoe assembly comprises a slide block, a center cam, a pair of brake shoes, and a locking lug. The slide block has a head portion with a retention slot for a balance mechanism and a generally cylindrical-shaped hole which receives the center cam. The slide block also has side apertures extending to the hole and a receiving opening in a back face of the slide block and extending to the hole. The center cam has a slot well, cam flats and cam rounds. The slot well receives a terminus of a pivot bar attached to the window. The brake shoes which are positioned in the side apertures and the locking lug which is positioned in the receiving opening are in operable association with the center cam. Tilting of the window about its lower pivot point causes the pivot bar to rotate the center cam.

Abstract: A pivotable window sash assembly includes a pivot bar which engages a balance shoe for holding the sash to a master frame. The shoe has a recess in which a locking member is rotatably mounted. The locking member includes an exposed keyway which is selectively aligned with at least one slot in the shoe located at the recess. The pivot bar has an arm which functions as a key for fitting in the keyway and has at least one projection extending outwardly from the arm for fitting in each slot when the slot and keyway are aligned. The pivot bar has a locking member which snaps into a hole in the sash.

Abstract: A door and doorway construction includes a doorway structure having a lock jamb, a hinge jamb, and a header defining a doorway opening. An adjustable door is constructed to fit mateably into the doorway opening. The doorway structure includes an overhead expressway construction configured to structurally support a weight of the door and further adapted to carry utilities over the doorway opening. The doorway structure is vertically adjustable to align the expressway construction with adjacent wall units, which results in size changes in the doorway opening, and the door is adjustable to define an adjustable vertical height shaped to fill the doorway opening despite the size changes. In one form the door is pivoted to the doorway structure with hinges located above and below the door and at a centerline of the door.

Abstract: A tilt sash counterbalance system has a carrier shoe with a locking cam that moves a locking component to a corner-to-corner locking position within a shoe channel. This is done by moving the locking component to a locked position where the locking component simultaneously increases both the width and the thickness of the carrier shoe. This presses the locking component into one inside corner of the shoe channel while pressing an opposite edge of the carrier shoe in a diagonally opposite direction against a diagonally opposite inside corner of the shoe channel.

Abstract: A window assembly of the type having at least one sash which is slidably mounted between a pair of jambs defining a window case, wherein the sash includes jamb-engaging side members (i.e., stiles) which have generally flat edges. The flat or flush sides of the sash stiles allow the sash to be easily pivoted away from the plane of the window case, without pushing on, or deforming, the jamb liners, thus overcoming problems generally associated with conventional sash having recess or plows configured to be interfitted with protruding ridge-like channels projecting outwardly from the jambs, as is typically the case with wood-frame windows. In accordance with another aspect of the invention, weatherstrips are mounted to each of the jamb liners to provide weathersealing engagement between the jamb liners and the sash stiles at the sides of the windows.

Abstract: A window frame assembly made of hollow profiles where the components are welded together to form a channel or passage for a balance shoe, wherein the balance shoe is characterized by having the side walls of the balance shoe recessed so as to accommodate flash that may be encountered at the weld seam of the welded components.

Abstract: A pivotable window sash assembly includes a pivot bar which engages a balance shoe for holding the sash to a master frame. The shoe has a recess in which a locking member is rotatably mounted. The locking member includes an exposed keyway which is selectively aligned with at least one slot in the shoe located at the recess. The pivot bar has an arm which functions as a key for fitting in the keyway and has at least one projection extending outwardly from the arm for fitting in each slot when the slot and keyway are aligned.

Abstract: A locking device for countering the force exerted by a spring balance while a window sash is in a tilt position or removed from a tilt position in a window frame, includes a shoe and a sash pin, the shoe engaging the walls of a jamb or jambliner when the window sash is tilted or removed from a tilt position, and the sash pin having a tab for preventing disengagement from the shoe during installation in a window frame. The shoe includes a pair of arms, one of which terminates in a barb and the other of which terminates in an angled edge, such that upon rotation, the shoe forms a wedge within a jamb or jambliner. The shoe further includes a plurality of prongs disposed between the arms for retaining the sash pin, and a bore for retaining an attachment mechanism associated with a spring balance.

Abstract: An opening/closing device for windows is disclosed, in which the windows can be opened in a tilt manner and a sliding manner selectively. The conventional windows can be opened either in a tilt manner or in a sliding manner, but they do not have the composite functions but only a single one. The present invention includes two composite functions, i.e., the tilt opening and slide opening. One ends of links 8 having guide rollers 9 are pivotally secured to an upper frame of the windows 2 and 3 which are accommodated within an outer frame 1. The guide roller 9 can move along a guide rail 11 which is formed on a top segment 1a of the outer frame 1. A sliding roller 12 with an auxiliary roller attached thereon is installed in a lower frame df of each of the windows 2 and 3, and the sliding roller 12 can move along a sliding rail 13 which is formed on a bottom segment 1b of the outer frame 1.

Abstract: A window frame assembly made of hollow profiles where the components are welded together to form a channel or passage for a balance shoe is characterized by having the side walls of the balance shoe recessed so as to accommodate any flash that may be encountered at the weld seam of the welded components.

Abstract: A pivotable window sash assembly includes a pivot bar which engages a balance shoe for holding the sash to a master frame. The shoe has a recess in which a locking member is rotatably mounted. The locking member includes an exposed keyway which is selectively aligned with at least one slot in the shoe located at the recess. The pivot bar has an arm which functions as a key for fitting in the keyway and has at least one projection extending outwardly from the arm for fitting in each slot when the slot and keyway are aligned.

Abstract: A window sash balance shoe for use in a tiltable window assembly. The window sash balance shoe is capable of adjusting the frictional force between a window sash and the walls of a guide track sufficient to allow said window sash balance shoe to maintain its vertical position in the guide tracks along the range of vertical positions, but insufficient to prevent the window sash balance shoe from being raised or lowered. The window sash balance shoe has a body having a transverse bore within which a friction adjustment cam resides. As the friction adjust cam is rotated it causes the body to expand within the guide tracks. The window sash balance shoe additionally provides a connector for receiving a pivot bar of a window sash and a connector for receiving a tension device or spring. The connector for receiving a tension device is a hook having a notch formed in the convex side of the hook. The notch provides a point at which the end of the tension device can stretch over the hook and rest within the notch.

Abstract: A brake is disposed in a window frame. The brake includes a cam that causes the brake to engage the frame to resist movement of the brake. The cam is operated by a pivot assembly mounted in a sash of the window. A body of the pivot assembly slides into a notch in the sash and is retained by a detent. The pivot assembly includes an eccentric pivot bar that is received in an eccentric passage of the cam. The pivot bar engages a stop in the body and has a detent that engages a lip in the body.

Abstract: In a cooking device having a housing which can be closed by a door, a hinge support in the form of a slide or carriage is guided at one side wall so as to be displaceable at guide rails which are arranged horizontally at the side wall. One part of a hinge arrangement is fastened at the hinge support and the other part of the hinge arrangement is fastened to the door. The hinge support is guided at the guide rail by guide rollers which contact the guide rails in a positive engagement without play. In this way it is possible when opening the door to displace the same into a parallel position alongside the side wall.

Abstract: An interior storm window assembly, mounted to an interior building wall over a window opening containing a prime window therein is provided, having double hung, vertically movable window pane members received within opposing, self-locating vertical channels and pivotally attached to adjustable weight balancing elements within those channels. The frame structure of the window assembly, including the peripheral rail about each window pane member and the vertical channels, is formed from plastic material, such as vinyl, having low thermal conductivity, and a rigid, reinforcing rod, preferably of metal, is inserted within the plastic rail at the bottom of each window pane member. The vertical channels apply pressure inwardly to those peripheral rails to releasably retain the window pane members in vertical orientation as well as urge the peripheral rails laterally into sealing contact with the vertical channels.

Abstract: An improved locking terminal is provided for a full tilt, double-hung or single-hung window. The conventional full tilt, double-hung or single-hung window comprises a window frame having a pair of vertical jambs, each of which have a jambliner mounted therein. Each of the jambliners are provided with a pair of horizontally spaced and vertically disposed channel members which are open toward the sash sides of the window. A mechanical balance is mounted in each of the four channels and has a locking terminal associated therewith which is adapted to grip the walls of the channel to maintain the locking terminal in place in its respective channel when the sash is tilted inwardly for removal from the window frame. Each locking terminal includes a channel-shaped slide member with a back projecting from a lower end thereof and an arm projecting upwardly from the back, generally parallel to the slide member.

Abstract: A sideways slidable pathway system for wheelchair users that permits the temporary deployment of pathways to allow the transit of a wheelchair with a person therein over a stair or stairway barrier, in which the pathway, which itself may comprise one or more separate pathways, are permanently secured to an anchor adjacent an access opening and are rotationally disposable and slidable with respect to a track from a position in which the pathway is stowed away and not in use to a position in which the pathway is disposed over the stair barrier so that transit can be accomplished.

Abstract: A sliding element slidable on trolleys along a rail comprises a swing door swivellably suspended on a top frame strip and having, in a bottom frame strip (6') an anchoring device having a hinge stud (16) which can be lowered to engage with a receiving bush rotatably anchored in the floor. The hinge stud (16) is formed on a wedge-shaped hinge part (17) of metal which is guided for vertical sliding on a guide section (18) in the bottom frame strip (6') and engages slidably along a slide section (19) with a matching section (22) of a likewise wedge-shaped lowering part (23) of plastics material. Said lowering part is provided, in a recess (24), with a driving nut (25) which engages through a self-locking thread connection with a lowering bolt (27) which is positively connected by way of a bevel gear unit (29) to an operating pin (30) suitable for engagement of a hexagon socket key. A torque-limiting claw clutch may be inserted between the bevel gear unit ( 29) and the lowering bolt (27).

Abstract: A window balance system for a tilt sash uses a pair of constant force curl springs having curled convolutions carried by sash shoes and free end regions mounted in sash shoe channels above the region of travel of the shoes. The recurl tendency of the springs imparts a lift to the curled spring convolutions, and the shoes transmit the lift to the sash. The springs recurl into the convolutions as the shoes rise and uncurl from the shoes into the shoe channels when the shoes move downward, and neither movement requires the springs to slide frictionally within the shoe channels. Each shoe is preferably formed of two identical halves that are assembled to trap the curl spring along with a cam that locks the shoe when the sash tilts.

Abstract: The present invention is directed to a locking slide block slidably and pivotably mounting a window sash to a side member of a window frame having a vertical jamb channel. The locking slide block has a housing with oppositely disposed sliding surfaces for guiding the housing in the jamb channel. Operably connected to the housing is a locking means for selectively engaging the jamb channel and locking the housing in a fixed position, and a cam for selectively operating the locking means. A sash pivot operatively connected to the cam is operably connectable to the sash. The housing also has a sash pivot retainer spring. A retaining means is utilized to protect a free second end of the retainer spring from bowing and deforming due to forces applied to the window sash in operation.

Abstract: The present invention is directed at a locking slide block for slidably and pivotally mounting a window sash to a side member of a window frame having a vertical jamb channel. The window pivot has a housing with oppositely disposed sliding surfaces for guiding the housing in the jamb channel. Operably connected to the housing is a locking spring for selectively engaging the jamb channel and locking the housing in a fixed position. A sash pivot is operably connected to the sash and to the housing. The housing also has a sash pivot retainer spring. The pivot and housing have flanges to prevent the pivot from being pulled away from the housing proximately parallel to the longitudinal axis of an elongated portion of the pivot.

Abstract: A locking mechanism for windows having upper and lower sashes slidably disposed in a window frame. The mechanism has three modes, that is a locked mode, an unlocked mode and an auxiliary mode. In the locked mode at least one sash clamp mounted on a transverse rail of one sash engages a cooperating receiving element mounted to the adjacent transverse rail of the other sash, whilst a spring-biased pawl projects into a guide groove in the window frame. In the unlocked mode the sash clamp disengages the receiving element to allow the sashes to be slid relative to each other. In the auxiliary mode the spring-biased pawl is withdrawn from the guide groove to permit the sash to be moved transversely for cleaning.

Abstract: A housing with a top wall, upstanding parallel walls and two upstanding posts between the upstanding walls on a line parallel with the walls. Each post extends through an elongated opening in a first bolt which is mounted slidingly in the housing for reciprocation toward first and second ends of the housing. The bolt is extendible beyond the second end of the housing for engaging a window jamb when the housing is mounted on a sash of a tilt window that is fully seated in the jamb. The bolt is urged toward the second end by a spring in one of the elongated openings, bearing on the bolt and the post in the opening. A second bolt is supported slidingly between the first bolt and one of the walls, and is extendible beyond the second end for engaging the jamb. A portion of the first bolt extends through an upstanding wall, and a portion of the second bolt extends through the top wall.

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.

Abstract: A retaining catch for a tip-out sash provides an automatically deployed retainer mechanism for a sash slidably captive in a window frame or jamb. The sash can be raised and lowered by sliding it along the jamb. A releasable tenon, for example at the top edge of the sash, allows the user to rotate the sash out of the plane of the jamb, facilitating cleaning of the outside. Releasing the sash from the jamb by releasing the tenon activates a mechanism with a distal hook by which the edge of the sash remains captive and displacement of the edge of the sash from the jamb is limited to the unfolded length of the mechanism. The mechanism can be released fully from the jamb by manual action of the user, whereupon the hook returns under spring bias to reside along the edge of the sash.

Abstract: A lift-off shoe system uses non-locking sash support shoes (30) movable vertically and spring biased upwardly in a tilt window. Sash pins (25) have heads (26) that interlock with open top slots (31) in sash shoes (30) so that the sash pins are removable from the shoes only by lifting the pins vertically from above the uppermost position of the shoes. This simplifies the shoes, eliminates damage caused by shoe-locking mechanisms, and makes sash removal and replacement simple and convenient.

Abstract: The present invention relates to a locking device for use with the slider mechanisms of a window. In prior slider mechanism of the type described, a potential problem exits where the dimensions of the slider mechanisms changes. For example, in the case of a window, if the frame pieces bow outwardly due to warping, heat, stress, etc., as can happen where the frame is of plastic material, the window sash can fall out of the frame. In the present invention there is a carriage which rides in an elongated channel of the window and a bracket attached to the sash which slide relative to the frame. The channel has lips which overlie its edges. A coupling member, or connector, is provided having one end which is connected to the bracket and another end with a neck which is fitted to the carriage. The coupling member neck also has a pair of outwardly extending arms which fit into the channel. The arms extend transversely to the elongated direction of the channel.

Abstract: A window unit attachment is described in the form of a pivot corner for a single-hung or double-hung window. The pivot corner comprises a unitary pivot pin to allow tilting of the window and optionally a restraining guide to assure proper orientation of the window. The unitary construction of the pivot corner reduces the number of parts needed for tilting or removable single-hung and double-hung window units to a minimum and simplifies construction of these window units.

Abstract: A locking slide device for use in a double-hung window assembly wherein one or more sash are adapted to tilt inwardly about a pair of pivot pins located at the lower portion of the sash. The pivot pins are received in carrier slides which are adapted to carry the sash for guided vertical sliding movement, the carrier slides being received in vertical guide channels defined by jamb liners. The carrier slides are also connected to counterbalance means such as helical springs. Each carrier slide has a groove that receives a vertical rib formed in the guide channel and a cylindrical roller with a horizontal axis is carried in a roller slot within the carrier slide for selective movement into locking engagement with the rib. The cylindrical roller is engaged by one of the pivot pins whenever the sash is in its normal vertical position relative to the jamb liners.

Abstract: The present invention is directed to a tilt lock jambliner and slidable block used with windows that both slide vertically and tilt inwardly. The window sash slides within the jambliner channel of a window frame. A pivot bar is fixedly attached to the window and is receivable within an opening in the slidable block. The slidable block is slidably mounted within the jambliner channel. The slidable block has a plurality of projections on one side which alternatingly engage a projecting fin of the jambliner channel. The projections cause the projecting fin to assume a wave shape. The interaction between the projecting fin and the lowermost projections creates constant running friction. Running friction is adjustable using a threaded friction adjusting screw mounted in the slidable block. The uppermost projections form a V and have sharp locking corners.

Abstract: A lock shoe system for a take-out window having take-out jamb liners (10) uses a pair of fins (22) extending laterally outward from opposite sides (18) of a sash pin slot (16) in the jamb liner for supporting lock shoes (30) that move vertically in lock shoe channels (13 and 14) within the jamb liners. The lock shoes have pivotally mounted ramp latches (60) that extend over locking devices and are inclined toward recesses (82) for receiving sash pins (25). When a sash (20) is returned to an operating position between jamb liners (10), its sash pins (250 are moved downward over ramp latches (60), pivoting these aside and releasing the lock mechanism, which snaps the pins into the receiving recesses. This produces an audible sound as each pin is latched in its respective shoe (30) so that the user can tell from the sounds made when the latching occurs that sash (20) is properly latched into each shoe, where its weight is counterbalanced.

Abstract: A dual-purpose door system includes a door to be snugly received within an aperture of a vehicle body. The door has the lower end pivotally connected to a slide unit which is mounted upon the body and movable in an outward/inward direction and a sideward direction together with the door for thereby opening and closing the door in an ordinary mode of the system, and the upper end detachably received and guided by a guide unit mounted upon the body. The system further includes an extension board pivotally supported at its one end to the top end of the door and outwardly swingable about the one end subsequent to an outward pivotal movement of the door so as to provide an extended stepping board or path for the passengers in an emergency mode of the system. There is provided a buffer for absorbing objectionable pulses or shock loads which may be impressed upon the door and the board when they are opened in accordance with the latter mode.

Abstract: An extruded resin spring cover (12) extending for the full length of a resin jamb liner (10) and divided into vertical halves (14) by a longitudinal slit (15) is involved in a friction system that prevents hop or drop of a sash (13) counterbalanced between jamb liners (10). A counterbalance spring system is arranged within spring cover (12) and connected to a platform (20) that has a narrow width neck (24 or 44) extending through slit (15). A sash support portion (25, 37, or 57) of the platform is pivotally mounted outside the spring cover, and a connector portion (30, 35, or 40) of the platform is connected to the counterbalance spring system within the spring cover. Neck (24 or 44) extending through slit (15) affords the pivotal interconnection between the sash support portion and the connection portion and also contributes a fixed friction load involved in spreading the spring cover halves apart at the slit, in the region of the neck.

Abstract: A double-hung window pivot which eliminates the need for banding of the window during shipment and installation. The pivot includes a sliding member which has a bore perpendicular to a front surface thereof and a pivot button with a slot captively held in the bore which includes a retaining member adjacent a bottom surface thereof. A pivot bar is attached to the window sash and includes a projection sized to fit into the slot and has a slotted arrangement positioned to engage the retaining member. The projection is insertable into and removable from the slot only when the window sash is oriented with respect to the window frame in a position not used for vertical sliding movement or for pivoted cleaning of the window sash whereby the pivot bar and the pivot button are non-releasably connected together during normal shipment, installation and use of a window sash and frame employing the window pivot.

Abstract: A lock shoe system for a take-out window having take-out jamb liners (10) uses a pair of fins (22) extending laterally outward from opposite sides (18) of a sash pin slot (16) in the jamb liner for supporting lock shoes (30) that move vertically in lock shoe channels (13 and 14) within the jamb liners. The lock shoes bear against and ride on sash sides (24) of the fins, and the lock shoes have pivotally mounted biter knives (40) that can pivot into biting engagement with a frame side (26) of the fins to lock the shoes vertically in place. Arms (45) of the biter knives are engaged by pins (25) extending from the sash (20) into the slots for holding the knives clear of the fins whenever the sash is in its run. When the sash is removed from jamb liners (10), springs (50) on the lock shoes (30) bias the biter knives (40) into locking position against the force of the counterbalance springs (33), which bias the lock shoes upward.

Abstract: A tilt-in/tilt-out window assembly with improved weather seal gasket includes a pivot bar having a particular cross-section and being integral with the lower frame member of the window sash. The pivot bar is adapted to be received in an aperture of a rotatable disk for pivotal movement within an adjacently opposing shoe integral with a channel formed in an adjacent jamb of the window assembly. A weather seal gasket, positioned on and entirely surrounding the pivot bar between the shoe of the jamb and the sash, includes a centrally located aperture therethrough having a configuration shaped to that of the pivot bar cross-section and a diameter or width at least equal to width of the channel opposing formed in the jamb. The gasket is adapted to seal the junction between the pivot bar and the shoe, thereby preventing the "chimney effect" and thereby improving insulation.

Abstract: A combined slide guide and pivot pin for engaging the sash balance of a double-hung window assembly, and for riding in a guide rail of the master frame jamb of the window assembly to retain the guide rail in alignment relative to the sash window when the window is slided, utilizes a unitary metal member having, at a first end, a notched upper surface adapted to engage the sash balance, and having a cross-bar, as a slide guide, disposed proximate the first end with bevelled upper and lower surfaces.

Abstract: A fire panel includes a housing with a rectangular opening and rectangular door covering said opening. The door is attached to the panel with a attaching elements which comprises a pair of tracks spanning the opening, each track having a t-shaped channel, and a pair of truss-headed screws attached to the door. The heads of the screws slide in the channels in the tracks permitting the door to be slid from one side of the opening to the other without detaching the door from the housing. The door permits ease of service while meeting Underwriter's Laboratories safety requirements.

Abstract: A tilt window balance shoe assembly embodying a split balance shoe structure which enables the replaceable installation and removal thereof within a window casing jamb channel thereby eliminating either the window casing production prefabrication and cost therefor of providing a specially cut window jamb notch to accommodate the after-installation removal of a worn and reinstallation of a conventional unitarily constructed replacement tilt window balance shoe, or, if no such access notch has been provided, then elimination of both the maintenance and repair cost and inconvenience of additionally removing and reinstalling the window sash counterbalance mechanism in order to otherwise accomplish conventional balance shoe removal and replacement.

Abstract: A shoe is mounted between a frame and a sash of a window. The shoe has braking means that begin to engage almost immediately as the sash is rotated relative to the frame to prevent the sash from sliding relative to the frame. The shoe has a secondary means to assist in activating the braking means as the sash is rotated relative to the frame. When the sash is aligned with the frame, the braking means is automatically released and the sash and shoe can slide relative to the frame. The shoe and a projection that can engage with an indentation in the sash. The shoe has second engagement means that can engage with fourth engagement means on the sash to allow the sash to pivot relative to the shoe.

Abstract: A window to be used as a skylight or a front window and comprising a frame (1) and two window wings (2, 3) situated above one another on the outside of said frame and being pivotably openable about mutually parallel, especially horizontal axes (17, 18), and which in their open positions can be situated closely below one another in the upper opening of the frame. The two window wings (2, 3) are mutually separated and separately movable and are positioned completely outside the frame (1) both in their closed as well as in their open positions.In this manner a window is obtained which is inexpensive to manufacture and which allows many adjustment possibilities including a completely open position with a clear view and a great emergency exit, and where the loads on each wing are relatively insignificant.

Abstract: A closure panel assembly including a frame member and a panel member adapted to be tilted relative to the frame member and also laterally offset relative thereto by movement parallel to itself is equipped with a panel latching mechanism which includes a locking member engaging between the panel member and the frame member to lock the lower end of the panel member relative to the frame member when the panel member is to be moved to its tilted position while enabling release of the lower end of the panel member when the panel member is to be parallel laterally offset.

Abstract: A window apparatus includes a jamb assembly and a pair of window frame assemblies which are capable of sliding relative to the jamb assembly for the purpose of opening and closing and also tilting inwardly to facilitate cleaning. Locking members are provided on the upper corners of each of the window frames. The locking members are lodged in slots formed in the window frames and project beyond the window frames to engage the jamb assembly and prevent tilting of the window frames. The locking members have a relatively low level of stress when the window apparatus is subjected to wind loads, thereby enabling the window apparatus to withstand relatively high wind loads encountered on the upper floors of large buildings.

Abstract: A window construction having fixed and movable frames and an associated latch assembly. The latch assembly includes a latch housing, a latch member reciprocable within said housing and a cam lock. The cam lock is rotatably mounted within the housing and has a first position wherein the cam lock urges a latch member into a locked position and a second position wherein the latch member may be moved to an unlocked position. The cam lock is preferably composed of a resilient, resinous material and has a cantilevered portion which engages a portion of the latch member. A special tool or key of predetermined configuration may be required to rotate the cam member. Among other uses, the latch may be employed in connection with double hung windows which are adapted to be tilted inwardly for cleaning. In such use the windows may be subjected to sliding movement regardless of the latch position, but tilting movement may be accomplished only when the latch assembly is in a locked position.

Abstract: A mounting is disclosed for the movable member of a window or door in a fixed frame which comprises four set-off arms connected to corners of the movable member. Each set-off arm is pivoted and slidably mounted to the movable member at one end thereof and pivotally mounted to the frame in an opposite end thereof. An auxiliary arm is pivotally mounted to the set-off arm at an intermediate location thereon and also to the movable member. The set-off arms take up opposite mirror image inclined positions with the movable member in its closed and opened position respectively. The upper set-off arms are mirror images of the lower set-off arms about a plane perpendicular to the plane of the movable member with the pivotal and sliding engagement between upper and lower set-off arms being closer to each other than the pivotal engagement between those set-off arms and their associated auxiliary arms.

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: 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: Turnable window arrangement of the kind in which a window sash is capable of being rotated about a horizontal axis through approximately 180.degree. relative to a window frame while the pivotal axis of the sash is moved between upper and lower positions in the frame. A pivot pin is supported horizontally by the sash via a mounting on opposite sides of the upper side portion of the sash. The pivot pin is formed with a head and has a slide portion-supporting lug pivotally mounted thereon. The frame has a first guide groove with which the slide portion is slidably engaged as well as a second guide groove parallel to the first guide groove and receiving the head of the pivot pin. The frame and the sash define a relatively narrow, vertical gap in a direction transversely of the main plane of the window. The lug has a main portion freely pivotable in this gap and made of relatively thin-walled spring steel. The sash is formed with a groove for receiving the mounting supporting the pivot pin.

Abstract: A bulkhead door assembly mountable within a storage compartment, such as a refrigerated trailer, for dividing the compartment into subcompartments. Tracks are mounted on the opposed sidewalls of the compartment adjacent the upper edges thereof, and a pair of support devices are mounted on the upper corners of the bulkhead door and coact with the tracks. The support devices permit the upper edge of the bulkhead door to be fixedly latched relative to the sidewalls when the bulkhead door is in a lowered position for dividing the compartment. The support devices also hingedly support the bulkhead door to permit it to be swung upwardly about a horizontal axis located adjacent the upper edge thereof for storage in a raised position adjacent the ceiling of the compartment. A pair of releasable lock mechanisms are mounted adjacent the lower edges of the door for securing the door in either the lowered or raised 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