Abstract: A device to limit an opening of a window having a hinged sash coupled to a window frame including a window opening limiting structure having a first member and a second member. One of them is securable to the sash and the other of the first member and the second member being securable to the frame. A selectively releasable coupler by which the first member and the second member are couplable is shiftable between a coupled status and a released status. The first member and the second member bridge a preselected distance such that the sash is inhibited from opening beyond a predetermined distance. The coupler is releasable so that the sash can be opened beyond the predetermined distance and re-engages automatically when the sash is closed.

Abstract: A casement window unit including a fixed frame (2); a movable sash (3) connected to the fixed frame by a pair of hinged members (4, 5) joined to respective members of the fixed frame and of the sash so as to allow the movable sash to move between a closed position, where the fixed frame and the sash are in contact with each other, and an open position, where at least one stile (3c) of the sash is at a certain distance from the fixed frame towards the outside of the room where the window unit (1) is installed, and vice versa; and a movement arm (7) acting on the sash in such a way that it moves the sash from the closed position to the open position, and vice versa.

Abstract: A device to limit an opening of a window having a hinged sash coupled to a window frame including a window opening limiting structure having a first member and a second member. One of them is securable to the sash and the other of the first member and the second member being securable to the frame. A selectively releasable coupler by which the first member and the second member are couplable is shiftable between a coupled status and a released status. The first member and the second member bridge a preselected distance such that the sash is inhibited from opening beyond a predetermined distance. The coupler is releasable so that the sash can be opened beyond the predetermined distance and re-engages automatically when the sash is closed.

Abstract: A hinge unit for hopper/awning window units (1), the window unit comprising a fixed frame (2) and a sash (3) capable of rototranslation between open and closed positions. The hinge units (4) each comprise: a supporting element (5) integral with the fixed frame (2); an arm (6) one end of which pivots at the sash (3); a first slide (7) slidable along the supporting element (5); connecting rods (8, 9) connecting the first slide (7) to the arm (6); a joint rod (10) between the arm (6) and the supporting element (5), its ends respectively pivoting at a distal point of the supporting element (5) and at the arm (6), so as to form a second connecting point (F2); there being adjusting means (11) to allow a variation of the connecting point (F2) along the supporting element (5).

Abstract: A closure mechanism for a beverage preparation machine comprising a fixed lower part and an upper part rotatable relative to the lower part, the upper part being moveable from an open position, in which the upper part is disengaged from the lower part, and a closed position, in which the upper part is engaged with the lower part, the closure mechanism further comprising a clamping lever operable to retain the upper part in the closed position, wherein the clamping lever comprises a first member being pivotably connected at a first pivot to the upper part and a second member having a first end pivotable about a second pivot, an end of the first member and a second end of the second member being pivotably connected together at a third pivot such that the clamping lever has first and second positions of stability, wherein on operation of the clamping lever to move the upper part from the open position to the closed position the clamping lever moves from the first to the second position of stability.

Abstract: An operator for a jalousie window includes a linkage with two toggle joints. The toggle joints assist in locking the window in its fully opened or fully closed position. The toggle joints of the operator are actuated by an actuating lever which is mounted to the window frame of the jalousie window so as to provide a mechanical advantage to operation of the jalousie window. The mechanical advantage afforded by the operator allows relatively heavy jalousie window louvers and associated moving components to be actuated by means of a tolerable range of actuating forces. The operating linkage is equipped with brakes which permit the louvers of the window to be maintained in any number of fixed orientations between the fully opened and fully closed position of the window.

Abstract: A window stay assembly for fitment between a window frame member and a window sash member and having two preferably elongate window stays extending directly or indirectly between the window frame member and the window sash member. Those ends pivotably mounted preferably through a mounting plate to preferably the window frame member directly or indirectly interengaged by direct or indirect gearing so that the movement of one gives rise to some predetermined proportional or identical movement of the other. The distal ends of the window stays are themselves pivotably mounted directly or indirectly to the window sash member with at least on of the pivotal mounts being through a friction slide mechanism. The arrangement enables a reproducible opening of a window from its frame using a thin window stay assembly.

Abstract: A sash of a hopper window is linked to a shoe which engages a track in constant resistance to travel along the track such that the sash can be tilted by hand to any angle from the track within a predetermined range of angles, and will remain at the angle unaided.

Abstract: The invention concerns a tilting-swinging roof window, in which the window sash (1) is held by two arms (3) mounted to pivot on the upper end of the casement (2). In the swinging movement, the window sash (1) is guided by swivel pins (12) slidable in grooves (9) on the side members (6) of the casing (2). In the tilted position, the sash (1) is tightly connected by the arms (3) to the upper end of the casement (2). The roof window is provided with an opening device, which, in the area of the longitudinal side members of the casement, requires little space, applies force to the window casing as uniformly as possible, and has parts which are largely integrated into existing components.

Abstract: A slider for a track, such as the track of a friction stay, comprises a slider body adapted to be slidably received in the track, and slider body includes a recess having a cam mounted therein. Rotation of the cam causes the curved portions of the cam to bear against the sides of the recess, which are thereby slightly deformed. This deformation increases the frictional engagement of the slider with the track.

Abstract: A cap member for a window stay, particularly a four bar friction linkage stay, comprises a recess for receiving the tapered end of the bar which is attached to the openable vent of the window when the window is closed, and a pivotally mounted pawl member having a surface which defines an internal cam surface of the recess and which is adapted to engage and guide the tip of the bar as the window is closed and the tapered end enters the recess, the pawl pivoting so that when the tapered end is fully received in the recess the engagement between the tip of the bar and the inner edge of the pawl causes the outer edge of the pawl to bear against the inclined edge of the tapered end to hold the bar, and hence the window vent, firmly in the closed position.

Abstract: A supporting bracket including a track member, a slide, a stop member, a sash arm, a short link, a strut and a brace. The track member has a pair of folded side flanges along the length thereof with at least one of the folded side flanges which is subject to face toward a window sash being discontinuous at a central part thereof to define a cutout part; and a boss provided with a pivot pin having a central groove and a C-ring. The slide is movable along the track member and has a length substantially equal to the length of the cutout part. The stop member is secured to the track member and has a button shape with a central groove and a flattened portion. The stop member is turnable to a position with its rounded portion facing the slide to keep the slide within the side flanges and is turnable to a position with its flatten portion facing the slide such that the slide is releasable from the track member at the cutout part.

Abstract: A window hinge assembly for use with windows which pivot outwardly of the room about a substantially vertical axis. Each hinge assemlby has a rail which mounts on one end of the window frame and a mounting bracket to connect to the window sash. Linkages between the mounting bracket and sliders on the rail allow the window to be opened to a position substantially perpendicular to its fully closed position and adjacent one vertical edge of the window opening to allow maximum opening for ventilation and as a possible emergency escape. A tool with at least one inclined surface is used to release a leaf spring connected to the support slider and positioned against a stop in the rail to allow inboard movement of the open window away from that adjacent edge of the window opening in order to facilitate cleaning of the exterior surface of the window. The support slider has one pivot pin joint for both a thrust linkage and brace.

Abstract: An improved linkage mechanism for the opening and closing of a transom-type window, allowing for the window sash to fit tightly within the window frame in a closed position while, on the other hand, allowing for maximum open space for escape through the window frame when the window is opened. A tight fit between the sash and frame of the window is accomplished by having flanges on the sash and linkage means which causes the window sash to be first translated away from the window frame upon opening, providing enough clearance for the window to then be pivoted to an open position on a pivotal axis disposed away from the frame. The linkage is also designed to allow for maximum open space for individuals to escape through the window frame in an open position and a latch mechanism for holding the window in the full-open position for escape.

Abstract: A window includes a sash movable between closed and open positions while pivoting on a pair of slides which are vertically movable along the respective side posts of an outer frame. For pivotally connecting the sash to each slide, a pair of axially aligned longitudinally spaced sleeves are mounted on the top edge of the sash, one of the sleeves slidably receiving a pivot pin projecting from the slide. Rotatably arranged between the sleeves is an adjustor ring having a key projecting into the interturn spacing of a helical compression spring mounted within the sleeves and secured at one end to the pivot pin. The contact force of the slide on the side post is adjustable by the rotation of the adjustor ring relatively to the sleeves.