Abstract: A hyperbaric oxygen chamber for treatment of large animals such as horses is disclosed. The chamber is large enough for a horse to fit inside and comfortably move around. A specially designed davit door, though quite heavy, is easily manipulated and may be used to corral the horse during ingress or egress, and is serviceable using fluorocarbon lubricants. The door, sidewalls, and floor of the hyperbaric chamber are coated with a static dissipative polyurethane material suitable for oxygen environments and may protect the horse from injury and prevent sparks. The flooring is specially designed to allow the horse to eliminate during treatment, and may be cleaned easily and thoroughly without disassembly. The control mechanisms of the hyperbaric chamber include electro-pneumatic controls, for avoiding a fire hazard.

Abstract: A door arrangement for an aircraft that has a fuselage with a fuselage structure includes a door to be arranged inside a door frame of the fuselage structure and a door joint mechanism attached to the door of the door frame and to the fuselage structure. The door joint mechanism has a seven-joint linkage provided with first to seventh joints by means of which the door, guided exclusively in a rotationally articulated manner, is moveable over a predefined pivoting angle range from a closed position inside the door frame to an open position outside of the door frame and fuselage, and back again. In addition, an aircraft, especially a fixed-wing aircraft, encompassing at least one aircraft door arrangement is provided.

Abstract: An explosion-resisting window with a window frame and a sash frame, which accommodates a panel and is mounted in hinges on the window frame, so as to be tiltable, the sash frame nesting in the window frame in closed position. In order to obviate the need for an outer front glazing of armored glass while guaranteeing adequate safety against explosion shocks and permit the function of continuous ventilation if necessary in open position of the sash frame, the panel is made of armored glass and the window is provided with at least one tilt-limiting element, by means of which explosion-induced tilting of the sash frame in the hinges beyond a tilt-limit position can be resisted. There is at least one shift-limiting element, by means of which explosion-induced shifting of the sash frame perpendicular to a tilt axis in the hinges can be resisted.

Abstract: A door for aircraft is capable of blocking an aperture made in the aircraft. A framing of the door is connected to the fuselage by hinging means. The framing is mounted rotationally on the hinging means. The door is capable of taking two opposite stable positions, by 180° rotation about hinging means. The door comprises means to lock the framing in either of the stable positions. A first face of the framing is fitted with an observation dome, a second face comprising an access hole to the dome.

Abstract: An improved mechanism and method to attach a hard tonneau cover to a vehicle and to raise either just the rear of the cover or raise both the rear and front of the cover. The cover is supported in the raised position by two extending arms in the rear and by two rigid arms in the front. In operation, the rear of the cover is manually raised first and then the front of the cover can be manually raised. One embodiment has clamping telescoping arms for greater strength and to lock the cover in any position. Another embodiment has linear actuators to assist raising the front of the cover. The mechanism is comprised of inexpensively manufactured or off-the-shelf components. It is easily tailored to the numerous vehicle bed sizes, it can handle popular heavy body-colored fiberglass covers and it can be sold and shipped separately from the cover.

Abstract: Accessory door assembly for the normally open sides of a recreational vehicle such as a golf cart. The door assembly includes a doorframe that can be secured to the vehicle, and a preferably rigid door that is easily mountable and demountable, and is movable between an open position and a closed position. The door can be secured to the vehicle in the open position so that the passengers have the option of riding in the vehicle while the door remains open. The door is contoured to match the contour of the vehicle, so that even when the door is stored in the open position, the vehicle remains aesthetically pleasing. A hinge system is utilized that minimizes the clearance necessary to open and close the door, and provides an optional assist feature that helps urge or bias the door to the open or closed position and maintain it there.

Abstract: Method of controlling the climate in a recreational vehicle with an accessory door assembly such as for a golf cart, method of mounting a door assembly, and method of golfing. The door assembly includes a doorframe that can be secured to the vehicle, and a preferably rigid door that is easily mountable and demountable, and is movable between an open and closed position. The door can be secured to the vehicle in the open position so that the passengers have the option of riding in the vehicle while the door remains open. A hinge system minimizes the clearance necessary to open and close the door, and provides an optional assist feature that helps urge or bias the door to the open or closed position and maintain it there.

Abstract: A hinge assembly for attaching a door structure to an aircraft fuselage is provided. The door structure is linked to the aircraft body structure by way of a programmable mechanical linkage that is attached to the hinge member. The programmable mechanical linkage is actuated along the hinge member so as to maintain the door structure attached thereto in a controlled angular relationship relative to the longitudinal axis of the aircraft fuselage through its attachment to the fixed aircraft frame.

Abstract: A projection window operator providing horizontal displacement of a window relative to a vertical plane of the frame of the window. With at least one projection window operator installed on each of opposing sides of the window, the window can be actuated between a first closed position and second open position in which a trickle ventilation is provided around the window. The projection window operators installed on the window can be interconnected for simultaneous actuation, or actuated individually, providing selective ventilation on either side.

Abstract: A window for use in buildings for housing animals, such as barns, that is openable in two generally perpendicular directions, is provided. The window includes an outer frame secured within an opening in the structure, a middle frame that is pivotally secured to the outer frame, and an inner frame pivotally secured to the middle frame. A first pivoting mechanism includes a pair of hinges that enable one of the frames to be pivoted with respect to the outer frame along a generally vertical axis, and the second pivoting mechanism enables the other frame to be pivoted with respect to the outer frame along a generally horizontal axis. The second mechanism pivots and slides one of the frames in order to open the window for ventilation purposes while enabling the remaining frame to remain closed, thereby preventing the entering or exiting of large objects through the window, such as an animal's head.

Abstract: The present invention relates to a security window (1) or door in a burglar-retardant embodiment according to the preamble of claim 1. In order to obtain the burglar-retardant properties in the tilted position (7), at least one connecting rod block (15, 15?, 15?) is situated on at least one casement leg (F1 through F4), which prevents a displacement of the assigned section (13.1 through 13.4) of the connecting rod (11) when the casement (3) is in the tilted position (7) or solely allows a displacement path which is required in the closed position (5) of the casement (3) to disengage the scissor hinge (8) and a bearing element (9, 9?) on the casement (3) or the frame (2).

Abstract: Accessory door assembly for the normally open sides of a recreational vehicle such as a golf cart. The door assembly includes a doorframe that can be secured to the vehicle, and a preferably rigid door that is easily mountable and demountable, and is movable between an open and closed position. The door can be secured to the vehicle in the open position so that the passengers have the option of riding in the vehicle while the door remains open. The door is contoured to match the contour of the vehicle, so that even when the door is stored in the open position, the rear vehicle wheels remain exposed. A hinge system minimizes the clearance necessary to open and close the door, and provides an optional assist feature that helps urge or bias the door to the open or closed position and maintain it there.

Abstract: A door assembly providing an airtight seal for a chamber. The door assembly includes a link assembly that allows a door to move inward toward a gasket sealing an opening into the chamber.

Abstract: An egress 4-bar hinge assembly having two load-bearing links that pivot about spaced-apart bearing pivot points, wherein an entire length of at least one of the links overlies a planar bearing surface. The two links include a cooperating interface selected to engage through only a portion of the respective range of motions. The hinge assembly includes a support extension to define the bearing surface, wherein the support extension can include an integral end cap.

Abstract: This invention provides with a construction machine having a door-locking device comprising a door lock upon closing a door including two sets of locking mechanisms and door strikers mounted on front and rear sides of the door in which the locking mechanisms and door strikers are engaged with each other respectively so as to lock the door, whereby capable of making the door secured to a cabin body firmly without jounce.

Abstract: A dual pivot door hinge assembly for a side door system of a vehicle includes a body side-mounting bracket adapted to be connected to a vehicle body of the vehicle. The dual pivot door hinge assembly also includes a door side-mounting bracket adapted to be connected to a side door of the side door system of the vehicle. The dual pivot door hinge assembly includes at least one load arm pivotally connected to the body side-mounting bracket to form a first pivot axis and pivotally connected to the door side-mounting bracket to form a second pivot axis. The dual pivot door hinge assembly further includes a connecting member operatively interconnecting the first pivot axis and second pivot axis to allow the side door to remain parallel to a side of the vehicle body as the side door is pivoted radially outward and longitudinally.

Abstract: An agricultural machine is described with a screen for protecting a part of a cooling system of a motor mounted on the agricultural machine, the screen being mounted in its operational position adjacent the cooling system, wherein the screen is movable from the operational position next to the cooling system of the motor to a position in which the screen lies outside the envelope defining the outer form of the agricultural machine, the screen being hingedly connected to the agricultural machine so that the initial trajectory of the screen is horizontal and substantially perpendicular to the longitudinal axis of the agricultural machine, and that a further second trajectory of the screen is horizontal and substantially circular, having its centre of curvature on or adjacent a first hinge position.

Abstract: A motorized operator for opening and closing a window sash relative to a window frame via an arm mechanism connected to the window frame and being adapted to be installed in a cavity defined in the window frame. The operator comprises a motor, a drive axle rotated by the motor, and first and second gears in meshed engagement. The first gear is mounted on the drive axle, while the second gear is mounted to the arm mechanism such that motorized rotation of the first gear rotatably drives the second gear thereby causing the arm mechanism to pivot for opening and closing the window sash. A manual operator is adapted to disengage the first and second gears from one another while becoming engaged to the second gear for manually rotating the second gear and so manually operate the arm mechanism. The manual operator comprises a handle and a manual actuator which includes a sprocket.

Abstract: Articulation device for an aircraft door panel and an aircraft door integrating such a device. An aircraft door panel is articulated on the jamb by a device (20) that defines an approximately elliptical opening and closing trajectory, in which the major axis is approximately perpendicular to the panel. The device (20) comprises in particular a main arm (30), a secondary arm (32) articulated at the end of the main arm and a control lever (34) connecting the secondary arm (32) to the jamb, by articulation axes (A4, A5) close to the articulation axes of the main arm (30) on the jamb and the secondary arm (32) on the main arm. This arrangement makes it possible to fit a more voluminous emergency exit chute into the door panel.

Abstract: This invention describes a novel two way hinge for motor vehicle doors that hinges open at a 20 degree angle, then rotates upward 45 degrees. The motor vehicle door is maintained in the open position by a shock absorber/piston arrangement that is common in the automotive industry. The invention described herein can be installed by an aftermarket shop and/or sold as an easily installed kit. The present invention overcomes the shortcomings of existing hinges by allowing greater access for ingress and egress from existing motor vehicle doors in tight parking situations.

Abstract: The door for an automated machine comprises a chassis (6) delimiting an opening (7) and equipped with guide means for the movement of at least one mobile panel (10, 11), between a closed position in which the façade (14) of the mobile panel (10) at least partly closes the opening (7) and an open position in which the mobile panel (10) is located laterally with respect to the opening (7).

Abstract: In a window or door construction, comprising a frame, a casement/leaf attached moveably to the frame and mounting modules between the frame and casement/leaf, to control the casement/leaf an encircling control element is provided which can be driven by a motor and a handle module, is in engagement, in the various positions of the casement/leaf relative to the frame, with at least one mounting module and controls the sequence of movement of the mounting modules in such a manner that a clear sequence of the casement/leaf movements is ensured by the sequential succession of the control movements of the control element and of a slide, which is driven by the motor and can be connected to the control element.

Abstract: An emergency opening cylinder of a passenger door of an airplane is provided. An existing emergency opening cylinder is adapted at the lowest expenditures and with an insignificant increase in weight with respect to its operating characteristic to the load situation of an emergency opening of the door against the force of gravity. A ventilation bore of the emergency opening cylinder leads into a collecting chamber which has an outlet valve controllable by a control.

Abstract: A vehicle door hinge assembly that includes a body bracket, a door bracket, and, an interconnecting door bracket carrier. The door bracket carrier and the door bracket shift in unison from a fully closed position to an intermediate open position. The door bracket pivots in a swinging motion about the door bracket carrier from the intermediate open position to a fully open position. The hinge assembly further includes a motion restriction mechanism that restricts the door bracket from pivoting relative to the door bracket carrier when the door bracket carrier is not in the intermediate open position. Additionally, the motion restriction mechanism restricts the linkage assembly from moving relative to the body bracket until the door bracket has returned to the intermediate open position. A door attached to the hinge assembly moves first in a shifting motion and then in a swinging motion. The shifting motion moves the door laterally and outwardly relative to a vehicle body.

Abstract: An access door is suitable for installation in a structure such as a building and allows ready access to an enclosed region of the structure. The access door includes a door frame that can be mounted on the structure and that forms an access opening. A panel removably covers the access opening on an exterior side of the door frame. Two parallel connecting links are pivotably connected both to the door frame and to the panel in a manner permitting the panel to be moved from an open position where the access opening is uncovered to a closed position where the panel covers the access opening. A frame member connects the two links together in a rigid manner. One or more threaded fasteners can be used to detachably connect the panel so that it is secured in the closed position. In one embodiment, a single screw can detachably connect the panel to a pivotable connecting frame that includes the two links. In another version, the panel can be detachably and directly connected to the door frame by fasteners.

Abstract: An airplane door is swivellably disposed on a supporting arm, the supporting arm being swivellably disposed on an opening frame of a fuselage, and including a driving device for lifting and lowering the door and another driving device for swivelling the door and the supporting arm. During the movement of the lifting or lowering of the door, the transmission line of the driving device for the swivelling is uncoupled so that it is not unnecessarily mechanically stressed and a jamming of the transmission line therefore basically does not occur.

Abstract: A control panel, which might be enclosed within an openable housing, can be movably supported on a pivotable support structure. The support structure which incorporates one or more pivot points facilitates movement of the control panel from a normal operational position to a displaced maintenance/service position the control panel can be moved both arcuately and linearly on the support element.

Abstract: A window operator for the opening and closing of a hinged window. The window operator has a rotatable lead screw 16 on which moves a slider 19. A driving element 18 is threaded on to the lead screw 16 and is coupled to the slider 19. A lost motion mechanism is operable upon the sliding movement of the slider being inhibited at final closing or initial opening of the window. The lost motion mechanism includes a tab 42 engaged in a helical slot 43. Movement of the tab in the helical slot causes an angular displacement of the driving element 18. A retention member 47 is moveable in response to the angular displacement and retains the slider 19 against movement while the driving element 18 continues to move along the lead screw. The tab 42 is thus moveable along slot 49 to operate a multipoint locking mechanism L.

Abstract: In a convertible vehicle including a roof which is movable between a closed position, in which the roof covers an interior vehicle space, and an open position, in which the roof is deposited in a storage compartment behind the passenger compartment of the vehicle, that is covered by a rear lid, an operating mechanism for opening and closing the rear lid is provided which includes front and rear pivot arms pivotally mounted to the vehicle body, a coupling arm pivotally connected to the pivot arms and first and second links, each of which has one end pivotally connected to the rear lid and the first link is pivotally connected with its other end to the coupling arm while the second link forms an extension of the rear pivot arm.

Abstract: A device for opening a passenger door of an aircraft includes a supporting arm connected movably to the fuselage frame, a wishbone connecting the support arm to the passenger door, a first journal rotatably connecting the wishbone to the support arm, and a lifting mechanism. The lifting mechanism includes a lifting shaft for raising and lowering the door, a lowering safety shaft, a controllable drive engaged with the lowering safety shaft to rotate lowering safety shaft, and a lowering safety link. The lifting shaft includes two ends and a roller lever disposed at each end, wherein when the passage door is in the closed position, each roller lever engages a fuselage frame mounting. The lowering safety shaft includes an end and a roller lever disposed at the end. The lowering safety shaft is engaged with the lifting shaft. The lowering safety link includes a second journal having an elongated configuration.

Abstract: A pivot-tilt mechanism for a window or a door comprises a transmission (32), groove bands and locks (74, 92). The pivot-tilt mechanism has a pivot fixture (22) and a tilt fixture (24) and the transmission is formed of two parts and comprises a drive (18) for the pivot fixture (22) and a drive (20) for the tilt fixture (24). The pivot fixture (22) and the tilt fixture (24) are driven one after the other.

Abstract: The present device is directed to a new and improved barrier gate assembly which comprises an automatic vehicle gate operating mechanism and a barrier arm assembly. The barrier arm assembly, attached to the automatic vehicle gate operating mechanism, comprises of a bracket assembly with a hinge assembly attached thereto. The hinge assembly, having a pivot axis transverse to the bracket assembly, pivotally joins the bracket assembly to a plate assembly permitting pivotal movement of the plate assembly away from the bracket assembly. The plate assembly is fixedly attached to the hinge assembly for securing and holding a barrier arm. The barrier arm longitudinally extends from the plate assembly. A magnet-type device is provided on the bracket assembly in alignment with the plate assembly to hold both the plate assembly and the barrier arm in place next to the bracket assembly while preventing pivotal movement of the hinge assembly and thereby the extended barrier arm.

Abstract: A hinge assembly for casement windows is shown. The hinge assembly includes a slide block for connection to the sash arm that includes a reinforcing plate that extends downward before extending upward and around the flange of the track overhang. A larger undercut portion is provided beneath the reinforcing plate for added clearance between the slide block and fasteners used to secure the track to the window sill. The hinge assembly also includes a pivot base which is pivotally connected to the shorter tie bar or toggle link. The position of the pivot base with respect to the track can be adjusted to compensate for sash sag. An additional hole is also provided to provide new anchorage in the case of a sash sag adjustment or additional anchorage for use in high wind areas. The pivot base also includes a quick disconnect retainer disposed beneath the pivot base and between the pivot base and the track and thereby hidden from plain view.

Abstract: An opening and closing control mechanism for the project window which mainly comprises a slide frame, a slide block, a retaining block, a pivoted force arm, a carrier arm, a support arm and a connecting arm in an effort to improve the carrier arm which works as a fixed pivot at the near end of sash to be able to bear the pushing load. The retaining block, combined with the slide frame, enhances the structural stability of the sash as well as the smoothness of opening and closing movement.

Abstract: A window stay is provided for mounting a window in a window frame. The window stay comprises a bar member for connection to the window, a track member for connection to the window frame, a slide member slidably mounted on the track member, and a pair of arms for moving the bar member to a closed position and to an open position. The pair of arms comprise a first arm connecting the track member to the bar member and a second arm connecting the bar member to the slide member so that the bar member overlies the track member in the closed position and is slidingly moved away from the track member in the open position. A projection is disposed on the bar member and has a side surface extending in a longitudinal direction of the bar member. An insert groove is formed at an end portion of the track member for receiving the projection when the bar member is in the closed position.

Abstract: A sealing system includes a gate (2) which is pivotably mounted to a crank (3) which is mounted for rotation with shaft (1). A spring (5) is disposed between gate (2) and crank (3). The gate (2) includes an O-ring (6) which compresses and slides during closure.

Abstract: A window actuator for a casement window has an actuator housing having a generally channel shaped receptacle portion defined by a rear wall, a front wall generally parallel to the front wall, and two end walls spaced to form therebetween a hollow interior with an open top surrounded by an outwardly extending peripheral flange and a base plate extending from the rear wall beyond the open top for mounting on a window frame. A worm housing is connected to and extends outwardly from the front wall of the housing and holds, by a plastics locking member threaded into the worm housing, a worm which is rotated by a manually actuable crank to drive a rotatable wheel mounted within the hollow interior. The wheel has an outwardly extending portion connected by an arcuate pivotal link to an actuator arm pivoted at its inner end on the base plate and arranged so that in the extended position of the arm, the link goes overcenter against a stop on the housing.

Abstract: A movement device for pieces of furniture, for articulating a door with respect to a stationary structure, comprises a first articulation element (12; 12a . . . ) linked to the door and pivotable with respect to the stationary structure, and a second articulation element (14) hinged to the stationary structure, the ends of said two articulation elements being hinged together, the first articulation element having an elastically variable extension, so that said two elements may assume with respect to one another a stable retracted position and a stable extended position, passing through a succession of unstable positions, and further comprises adjusting means (30; 30a; 30b . . . ) for adjusting the distance between an axis (a16) of the hinge between the two elements and a rotation axis (a13) of the second element with respect to the stationary structure.

Abstract: An improved workcell is provided with a door hinged at a midpoint between the opposite sides and maintained in a parallel relationship to the workcell access opening, thereby minimizing the clearance space required to open and close the door. The workcell is formed of a plurality of posts and wall panels which can be quickly and easily assembled and disassembled, such that the workcell is portable. The wall panels are pinned to the posts and include hollow ribs to receive cabling, wiring, and tubing for work functions within the workcell.

Abstract: A tailgate of a motor vehicle which can be selectively pivoted as the trunk lid around a front pivot axis by a front four-bar mechanism which has two levers or can be pivoted as the lid of a roof receiver for the folding roof around a rear pivot axis by a rear four-bar mechanism which has two levers, has a lever that is part of both the front four-bar mechanism and the rear four-bar mechanism.

Abstract: A vehicle access system includes an access opening for the passenger compartment that is closed by a swinging door in combination with an articulating door. The articulating door moves through an arc without angling away from the vehicle body and is supported on a hinge assembly that attaches near the center of the door. An arm assembly guides the door throughout its range of positions and maintain the door in an orientation that is substantially parallel to the vehicle body. When the doors are open, an uninterrupted access opening is provided to the area of the second and third seat rows of the vehicle.

Abstract: The invention provides a door system for a transit vehicle. It has an actuator which provides a rotary motion about an axis of the actuator for moving the door panel between an open position uncovering the aperture and a closed unlocked position covering the aperture. The actuator also provides a linear motion along the axis of the actuator for moving the door panel between the closed unlocked position and a closed locked position. The rotary motion followed by the axial motion is provided by a cylinder having a piston moved by fluid pressure. The piston includes a guide track in its exterior which engages rollers in the cylinder. The guide track has one portion curving around the piston and one portion parallel to the axis. The curving part provides the rotary motion and the straight part provides the axial motion. When the rotary motion is completed the piston encounters a stop on a shaft which supports the door. The actuator then moves the door axially to engage locks.

Abstract: A mounting arrangement for a window stay. The mounting arrangement comprises a mounting bracket 11 which is mountable to a part of a window construction such as a window frame or window sash. The mounting bracket 11 has an abutment 25 with an opening 26 to receive a tab 27 at one end of the mounting base 10 of the window stay. The mounting bracket 11 also has a clip 23 which can engage with a cut-out 28 in the mounting base 10 of the window stay. The window stay can thus be quickly located with a mounting base already mounted to a window construction.

Abstract: An opening and closing apparatus of the folding type includes a guiding part, a slider, a first link, and a second link. The guiding part has a guiding protrusion and a guiding bend for longitudinal movement of the slider therein and is fixed on a frame. One side of the first link is hinged to the lower side of the guiding part. The other side of the first link is hinged to the link-connecting portion of the second link. Centering about the link-connecting portion, one side of the second link is hinged with a movable frame and the other side thereof is connected with a rotating part of the slider. The slider has friction-reducing portions to prevent the slider from frictional wear with the guiding protrusion, the guiding bend, and the slider connecting portion. The slider has a locking protrusion for maintaining the apparatus in a closed state.

Abstract: A device for removing spa covers and storing them, while the spa is in use, and returning them to cover the spa after use. The device may be operated with very little effort on the part of the user to lift the cover up and "off" the spa and over the end for storage. The spring balance aids in returning the cover to the "on" position. This device also reduces the possibility of having the wind damage or blow away the spa cover. Handicapped persons may find the installation of the hand crank or electric motor provisions will help them remove and replace the cover.

Abstract: A mounting arrangement for a windshield of a motor vehicle includes control linkage operable for articulating the windshield between a raised position and a lowered position such that an inner side of the windshield downwardly faces the vehicle hood when the windshield is in its lowered position. The mounting arrangement includes a first pair of control links which are pivotally interconnected at their first ends to the vehicle body and pivotally interconnected at their second ends to the windshield. Preferably, the mounting arrangement further includes a second pair of control links which are similarly pivotally interconnected at their respective first and second ends to the vehicle body and windshield. The mounting arrangement further includes a drive mechanism connected to one of the links of the first pair of control links and one of the links of the second pair of control links for driving the windshield between its raised position and lowered position.

Abstract: A supporting bracket for windows which can be used on any side of a window and which can be mounted using existing central mount installation tooling is disclosed. The supporting bracket uses dual sided containment of the vent bar end for preventing sash play and uses camming surfaces to allow for immediate sash pull in which prevents weather-strip problems and prevents the supporting bracket from binding during an opening operation. In some embodiments, an end cap engages opposite sides of a symmetric vent bar end. In another embodiment, a pin attached to the vent bar is engaged on opposite sides by a track formed within the main track of the supporting bracket. In all embodiments, the vent bar and the link pivotally connecting the vent bar to the track are prevented from moving in a direction opposite the direction of opening during an opening operation. The arms of the supporting bracket may have fully rounded edges for preventing binding between adjacent arms during load.

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 security closure for covering an opening, e.g., a window, in a building includes a panel having a circumferential sidewall. A support member is securable to extend across the opening in fixed relation thereto, the support member being releasably securable to the interior of the panel away from one edge thereof by a releasable securing device. The support member is fixed at the one edge by a hinged fixing structure which allows the panel to pivot substantially along the one edge away from the opening when the support member is released from the releasable securing device. As a result, an emergency release of the panel can be accomplished.

Abstract: A casement window operator includes a linkage with an extensible arm pivotally connecting to a driven arm mounting to the window frame. An extended end of the driven arm pivotally connects to a link mounting to the sash bracket on the pivoting sash. The extensible arm includes a screw drive member connected to a friction bearing of a cover. Rotation of the screw extends and retracts the cover to lengthen and shorten the extensible arm. The operator includes an actuator with a handle mounted to a first bevel gear intermeshing with a second bevel gear. The bevel gears are mounted in a housing which pivotally rotates as the linkage is actuated. The second bevel gear is coupled to the screw member of the extensible arm.