Abstract:
The sliding device for a sliding panel comprises:a) a support which is shaped in or attached to the bottom portion of the panel, said support having a downwardly open upside-down U-shape;b) an oscillating arm secured to the support about a pivot axis which is horizontal and which extends transversely relative to the U-shape;c) sliding means fixed towards the free end of the oscillating arm;d) a pivoting cam which is secured to the support by a first axis of rotation and bears against the oscillating arm; ande) an adjustment screw which is fixed relative to the support and whose displacement serves to adjust the angle of rotation of the cam by means of a linkage between the cam and the adjustment screw.It may also include means for locking the oscillating arm in position relative to the support whenever the sliding means is in its high position within the support. The oscillating arm may include means for securing a cleaning pad suitable for bearing against the roller wheel and/or for extending in the form of a loop beneath the oscillating arm.
Abstract:
A multiple spring counterbalance includes a torsion spring and a tension spring for exerting a combined lifting force on a window sash. A spiral rod is threadably engaged with a follower nut for converting a torque applied by the torsion spring into a lifting force on the window sash. The spiral rod has a pitch that is varied along one part of its length to produce a substantially constant combined lifting force throughout most of a range of sash travel between a lowered position and an intermediate position. However, the pitch is further varied along another part of the length of the spiral member to produce a larger combined lifting force within a remaining portion of the range of sash travel from the intermediate position to the raised position.
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 door-closing hinge comprising an upper barrel with a wing secured to the door and an aligned lower barrel with a wing secured to the door frame. A bolt rotatable in the lower barrel has a non-circular upper end fitting in a non-circular opening in the upper barrel and a lower stem portion of smaller diameter which extends to the lower end of the lower barrel and has in its lower end a central conical depression engaged by a pivot pin in the lower end of the lower barrel. At the upper end of the lower barrel there is a ball bearing between a threaded collar screwed into the upper end of the lower barrel and a washer on the bolt. A sleeve surrounding the bolt has inner pins slidably received in helical grooves in the bolt and outer pins slidably received in longitudinal grooves in the inner surface of the lower barrel so that when the door is swung from closed position toward open position the sleeve is moved upwardly against the force of a spring which tends to return the door to closed position. The lower barrel is filled with oil which acts hydraulically to control the rate of closing.
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. The roller assembly or device comprises an outer stationary frame member having a pair of correspondingly positioned canted slots formed therein and means provided on the outer frame member to permit frictional and mechanical engagement of the assembly within the channel of the sliding frame closure; an inner frame member adapted to be mounted within the outer frame member and having at least one roller wheel fixedly mounted therein for rotation about its axis; the inner frame member being mounted for vertical movement within the outer frame member by means of a transverse pin which extends through the canted slots of the outer frame member; the inner frame member being secured by adjustment means to the outer frame member such that on tightening of the adjustment means, the transverse pin secured through the inner frame member slides down the canted slot moving the roller wheel vertically downward and reverse movement occurs on loosening of the adjustment means. Also described is the combination of at least one of the roller assemblies and a sliding frame closure.
Abstract:
A movable panel supported in a frame for horizontal travel, said panel mounting a movable structure for limited horizontal movement therein and defining horizontally spaced and oppositely inclined planes, and an insert rigidly mounted in said panel and defining plane engaging surfaces adapted to engage said planes for relative movement equally up and down proportional to the relative horizontal movement of said movable structure and the fixed insert.
Abstract:
A stationary outer frame member is attached to the bottom portion of a sliding closure, this outer frame having a pair of oppositely positioned vertical slots formed therein. An inner frame member having a pair of oppositely positioned canted slots formed therein is slidably mounted in the outer frame member. A roller wheel is mounted for rotation within the inner frame member on a pin which passes through the slots of both the inner and outer members, this pin holding these members and the wheel together. Vertical adjustment of the wheel without any lateral movement thereof is provided by means of an adjustment screw which causes the inner frame member to move relative to the outer frame member thereby causing vertical motion on the pin in the vertical slots formed in the outer frame member.