Abstract: A window safety guard is used for preventing an intrusive person or object from entering a home through a window when it is left open by the owner. It is also easily removable during emergency situations as it has a simple locking mechanism and may be removed as a single unit. The assembly has a series of vertical bars with tapered ends that are inserted into corresponding holes in a windowsill and in a bottom frame edge of a raised lower window. Support bars are coupled to the vertical bars to add strength and to help block the window opening. The window safety guard assembly also has a locking mechanism wherein a small rod is inserted in a corresponding hole in a side edge of an upper window frame. The small rod, when inserted, is also abutting the top frame edge of the raised lower window to prevent the lower window from being raised and the window safety guard from being removed.

Abstract: A door latch is provided for vertical sliding doors of the type used in warehouses and loading bays. The latch includes a housing, a latch bolt supported on the housing for sliding movement between a latched position and an unlatched position, and an actuator arm supported on the housing for moving the latch bolt between the latched and unlatched positions. A linkage interconnects the actuator arm and the latch bolt to transmit movement between the actuator arm and the latch bolt, with the linkage including a first end pivotally connected to an end of the latch bolt and a second end pivotally connected to and end of the actuator arm. A pivot pin supported on the housing extends through the actuator arm at a point spaced away from the linkage whereby the actuator arm will move the latch bolt to the unlatched position with movement of the handle end of the actuator arm in either a clockwise or counterclockwise direction about the pivot pin.

Abstract: A lockable sliding window apparatus includes sliding window units having respective vertical frame members that are coupled at a closed configuration. Inner and outer segments of one frame member receive the other frame member therebetween. A combination dial lock is mounted to the outer segment and includes a lock pin extending through therethrough. The lock pin is immovable when the combination lock is locked and vice versa. A window pin extends through the outer segment of the one frame member and through the other frame member for locking the other frame member in place. When the combination lock is unlocked, the lock pin may be user actuated to release the window pin for opening the window units. Another embodiment includes an electronic keypad by which a user may enter a security code. Proper entry actuates a solenoid to retract a lack pin that may otherwise lock the window units together.

Abstract: A dual function window security means for a double hung casement window includes an elongated hollow tube having spaced apart tube apertures along the elongated hollow tube; a hollow piston means having spaced apart piston apertures along the piston means, which is telescopically connected to the elongated hollow tube; a locking mechanism to interlock the elongated hollow tube and the piston means through the apertures; and an orientation sensor positioned inside the hollow piston means near one end. When in use, one positions the window to a desired opening, and places the window security means between the window panel edge and the window sash. Using this device, the window can be opened and locked at a desired level, which prevents an unauthorized entrant through the window from outside. If the window security means is tilted from a predetermined orientation, the orientation sensor activates and generates alarming signals.

Abstract: A lockable sliding window apparatus includes sliding window units having respective vertical frame members that are coupled at a closed configuration. Inner and outer segments of one frame member receive the other frame member therebetween. A combination dial lock is mounted to the outer segment and includes a lock pin extending through therethrough. The lock pin is immovable when the combination lock is locked and vice versa. A window pin extends through the outer segment of the one frame member and through the other frame member for locking the other frame member in place. When the combination lock is unlocked, the lock pin may be user actuated to release the window pin for opening the window units. Another embodiment includes an electronic keypad by which a user may enter a security code. Proper entry actuates a solenoid to retract a lack pin that may otherwise lock the window units together.

Abstract: A stop device that is useable with substantially any closure having a sliding panel movable with respect to a frame. The device being novel as it is not only very functional as a stop device but it also includes interchangeable removably attached safety accessories, such as burglar alarm and/or a smoke detector or the like. Also, each of the safety accessories can be disguised within a housing for aesthetic purposes, such as each may look like a toy, a flower, a cartoon character, etc.

Abstract: A locking mechanism includes a frame having a movement obstruction arm movable into a track on which rollers of an overhead door will move. When any roller on the door abuts against the arm, it will obstruct any further opening movement of the overhead door. A camming means is associated with the movement obstruction arm to automatically shift the same to a position out of the trackway when the door is moving back to the closed position. A control module is operable with the locking mechanism and receives a signal from a locking mechanism indicative of whether or not the locking mechanism is opened or closed. The control module will thereupon provide an opening signal to an opener for the overhead door.

Abstract: A sliding latch and locking mechanism, for windows and doors, whereby the latching mechanism provides a means for discrete position retention of a sliding window or door and provides an increased measure of security. The latching system combines four modes of operation i.e. lock, close only, raise (free sliding), and tilt to provide angular pivoting of window sash, that allow three levels of security, i.e. fully locked, close only with discrete positions maintained, and raise or lower without discrete positions maintained (free sliding). The latching system security levels are accomplished by means of a selector knob positioned to the desired mode of operation. Also, a mechanism is integrated to provide interlocking in the fully closed position with the upper or adjacent window or door sash.

Abstract: A brake assembly (24) is provided for locking a slidable sash window (14) within a track (16) of a frame (12). The track (16) has a pair of spaced apart, opposed sidewalls (20), the brake assembly (24) includes a slider body (28) adapted for slidable motion within the track (16). The slider body (28) has a central opening (34) extending from a front face (36) to a rear face (38) and has a side opening (46) adjacent to the central opening (34). The assembly also includes a brake member (30) comprising a spring having a braking surface (58), and mounted within the slider body (28) such that the braking surface (58) is adapted for reciprocal lateral movement through the side opening (46).

Abstract: A window assembly includes a housing and a winder rotatably connected to the housing, where the winder includes a slot. The housing is mounted on a window sash. A flexible filament is disposed within the slot and is operative with the winder to withdraw window sash latches from a window frame so that the window sash can be removed from the frame.

Abstract: A latch assembly for double hung windows also permits each of the sashes to be tilted inwardly with respect to the window frame assembly. The window latch assembly includes a keeper which is recessed within a lower rail of the upper window sash, and a latch which is recessed in the upper rail of the lower window sash and positioned such that the latch and the keeper are selectively engaged upon rotation of a sweeper cam. The sweeper cam also engages a slide translatable between a first position engaging one of the side rails of the window frame assembly, and a second position, retracted within the lower window sash and release the upper edge of the window sash from the window frame assembly.

Abstract: A locking device for attachment to a fixed portion of a transit vehicle door system is for locking one or more doors of the transit vehicle door system in either a fully locked position or a pushback lock position. The locking device has a simple lock arm, biased toward the locking position and rotatably attached to the fixed portion of the transit vehicle door system at a first pivot of the rotary lock arm, the rotary lock arm having at least one door engagement portion for engaging a portion of the door(s) for locking the door(s) when the rotary lock arm is in at least one of the locking position and the pushback position thereof. A linear actuator, rotating the lock arm to the unlocked position when energized, is attached to the fixed portion of the transit vehicle door system and connected to a second pivot of the lock arm, said second pivot offset from the first pivot. A lock actuator sensing switch provides a feedback on the actuator position to the transit vehicle control system.

Abstract: A window stop (10) for limiting movement of a sliding window along a predetermined path of window movement is provided. The window stop (10) has a housing (12) having a cavity (20) wherein the housing (12) is adapted to be positioned adjacent the path of window movement. A bolt (14), operatively associated with the cavity (20), is moveable between a first position (BP1) within the housing (12) and thereby out of the path of window movement, and a second position (BP2) extending out of the housing (12) into the path of the window movement whereby the window is able to contact the bolt (14). A securing element (16) exerts a force generally perpendicular to the longitudinal axis of the housing and on the bolt (14) to retain the bolt at the first position (BP1). When a second force is applied to overcome the force exerted by the securing element (16), a biasing element (18) displaces the bolt (14) toward the second position (BP2).

Abstract: A window and sliding door security device that is attached with a Velcro or hook and loop application.

Abstract: A slide window and door lock includes a connecting device selectively mounted on a vertical jamb of a sliding panel at a predetermined height with respect to a base slider track of a supporting frame and a locker panel having one pivot edge pivotally connecting to the connecting device and another opposed locking edge adapted for inclinedly biasing against the base slider track at a predetermined angle so as to lock up the sliding panel in a slidably movable manner.

Abstract: A window shutter unit with a locking mechanism including a frame for mounting upon a wall in surrounding relation to a window and a panel movably supported by the frame. The panel has a vertically oriented rack and an aperture at the bottom of the rack. A rotatable and longitudinally movable shaft is positioned in a passageway through the wall beneath the window. The shaft has a pinion gear for engaging the rack. Rotational movement of the shaft selectively raises or lowers the panel within the frame. Longitudinal movement of the shaft, however, positions the pinion gear within the aperture so as to selectively lock the panel in a raised position.

Abstract: A sliding catch with partition release assembly for a fire extinguisher cabinet having a locking mechanism that comprises of a L-shaped member that has a first portion and a second portion that is defined as a stopping mechanism and a slotting mechanism. The slotting mechanism may be moved from a first locked position to a second unlocked position thereby releasing the locking mechanism and allowing the fire extinguisher cabinet to open. A partition release assembly allows for the injury-free access to the fire extinguisher cabinet by a fire-person.

Abstract: A universal lock handle assembly for multi-point casement windows is provided. The lock handle assembly includes an escutcheon that is mounted to the inside surface of the window frame. The escutcheon includes a slot for receiving a handle. The handle includes a grip portion that is connected to a mid-section which, in turn, is connected to a forked end. The mid-section of the handle is pivotally connected to the escutcheon below or exterior to the inside surface of the window frame. The forked end of the handle includes two spaced-apart legs that define an open slot for slidably receiving a slider. The slider, in turn, is pivotally connected to a tiebar. The slider enables the overall length of the handle to be variable thereby enabling the distance between the tiebar and the escutcheon or the inside surface of the window frame to be variable as well.

Abstract: A handle (10) supported pivotably but axially tight on an installation body (20) has a polygonal bar (30) mounted for rotation within a handle neck (12) for actuating a closing mechanism. Two drivers (15, 35) movable relative to each other are engageable in a non-positive and/or a positive way between neighboring surfaces (17, 37) either directly or by means of coupling elements (36, 40, 42) so that a torque transmission from the handle (10) to the polygonal bar (30) is free but is blocked from the polygonal bar (30) to the handle (10) as at least one coupling element (36) is displaced in the direction of the attack. A main portion of a polygonal driver (35) may be concentrically enclosed by a two-shell handle driver (15) having wings (52) with front faces (19) which drive e.g. pairs of spring-loaded roller pins (36) held in a wedge-shaped confining zone (55). Corner areas of indentations (31) of the polygonal driver (35) serve to attack the roller pins (36).

Abstract: A stop device that is used to prevent unauthorized opening of sliding closures, such as windows and doors, which is esthetically pleasing, is adjustable in length and includes removable decorative accessory items. The stop device includes first and second elongated extension members and a locking mechanism. The locking mechanism includes first and second levers which engage the first and second members, respectively, to lock the first and second members with respect to the locking mechanism.

Abstract: An assembly for use in a generally rectangular sliding doorway. The assembly includes two sliding glass doors and a stationary screen that are provided in the doorway. The sliding glass doors can be slid within the doorway to allow access across the doorway, to seal the doorway, or to permit ventilation across the doorway through the screen. The assembly also includes a coupling rod provided in a frame of one of the sliding glass doors to be selectively extended into a frame of the other sliding glass door. The sliding glass doors can be locked together to slide as a unit in a fixed relation to each other. The sliding glass doors can also be locked together to lock the sliding glass doors in a closed position to seal the doorway. The same coupling rod serves to lock the sliding glass doors together in the position where they slide together as a unit and in the closed position. The assembly is fully adjustable to be configured with the screen on the right or left side of the doorway.

Abstract: A golf cart screen assembly (30) comprises first and second mutually spaced apart rail members (34, 36), at least one protective panel member (38, 40) provided between the first and second rail members, the at least one panel member and the first and second rail members together defining a doorway. The golf cart screen assembly further comprises a door (56) slideably coupled between the first and second rail members and arranged for slideable movement between an open state, in which the doorway is open, and a closed state, in which the doorway is closed.

Abstract: A combined sliding and pivot window assembly including a plurality of sashes separately pivotally mounted on substantially C-shaped sash support frames that are slidably fixed on rails provided on an outer window frame. The window assembly includes combined sliding and locking mechanisms that allow the C-shaped sash support frames to slide on the rails when the sashes are pivotally closed, or to be locked on the rails when the sashes are pivotally opened, or to be pushed to one side in the outer window frame while allowing all the sashes to be pivotally opened; pivot mechanisms that allow the sashes to be pivotally opened and stay at any desired open position relative to the sash support frames; and elastic two-end locking mechanisms that are mounted in a vertical member of the sashes to lock the sashes at upper and lower ends to the sash support frames simply by laterally shifting an external adjusting key of the two-end locking mechanism.

Abstract: A storm-resistant window includes a mechanism for preventing the blowout of a movable sash when wind pressure pulls the sash outwardly. In a single hung window having a slidable lower sash, the mechanism consists of a first rib projecting downwardly from the bottom rail of the lower sash and a second rib projecting upwardly from the top of the sill member of the window frame. In a closed position of the window, the first rib lies inwardly adjacent the second rib such that, if wind pressure pulls the movable sash outwardly, the first rib will contact the second rib, preventing the bottom rail of the movable sash from moving outwardly. In an alternate embodiment, one of the ribs may be replaced with a channel, so that the remaining rib is received in the channel in the closed position of the window.

Abstract: A gate framing system for a PVC gate, the gate comprising first and second spaced vertical PVC frame members connected at their upper and lower ends to a pair of spaced horizontal PVC frame members, the gate framing system comprising a pair of spaced metallic framing brackets mounted at each corner of the PVC gate, the pairs of framing brackets being connected to each other in such manner as to hold the PVC gate in compression between the brackets at each corner thereof, wherein the framing brackets are bent around the outer side edges of the PVC vertical frame members in an overlapping relation, wherein a first post-tensioning metallic rod extends horizontally across the top of the PVC gate through the overlapping ends of the pairs of brackets at the upper corners of the PVC gate, and wherein a second post-tensioning metallic rod extends horizontally across the bottom of the PVC gate through the overlapping ends of the pairs of framing brackets at the bottom corners of the PVC gate, whereby the post-tensioni

Abstract: A stop device comprising a rectangular elongated member having an attaching member adapted to attach the elongated member within a jamb liner of a window jamb. The elongated member having first and second interconnecting sections telescopingly connected to provide an adjustment in length of the elongated member. The elongated member having an elongated slot having a base and two sides. A support member extending perpendicularly from one side of the elongated member. The support member having a protrusion extending from one end of the thereof which slidably engages the base and two sides of the slot to fixedly attach the support member to the elongated member. The other end of the support member includes a threaded bore which receives a threaded member.

Abstract: An automatic sliding door apparatus has a speed-change detecting element for detecting a change in the driving speed of a slide motor above a predetermined value as well as a pressure sensitive sensor disposed in a front end portion of a door panel, and the detecting of a foreign object is effected by the pressure sensitive sensor in regions other than a region in which the door panel slides at a fixed speed. Accordingly, the detecting of a foreign object is made possible in a region where the detecting of a foreign object is difficult in the detection of a change in speed by the speed-change detecting element.

Abstract: A cremorne lock mounting device for a window is capable of reducing width dimension of a frame of a window door and thus provide greater lighting area. A hollow portion extending over a frame body of the frame of the window door and a panel support portion is defined. A lock body of the cremorne lock is mounted within the hollow portion. Thus, the frame body is required smaller width dimension than a width dimension of the lock body.

Abstract: A new interior window locking system for preventing intruders from gaining illegal entry into a building. The inventive device includes a pair of horizontally disposed guide rails secured above and below a window within a window frame. A pair of square tubing frames are slidably disposed between the guide rails. Each of the frames have a steel grate disposed therein. A spring-loaded latch assembly is disposed on corresponding inner members of the pair of square tubing frames for engagement thereof.

Abstract: A wall panel assembly includes a track upon which a wall panel can travel for guiding movement of the wall panel, at least one moveable panel entrained on the track for movement thereon between a privacy position wherein information is hidden by or hidden on the moveable panel and a non-privacy position wherein the information is exposed and a locking mechanism for locking the moveable wall panel in either of the positions.

Abstract: A truck bed cap window lock system is provided including a cap mounted over a truck bed and having a window. Also included is at least one locking assembly having a lock housing coupled to an interior surface of a periphery of the window. Each locking assembly further includes a solenoid mounted to an interior surface of the cap adjacent to the associated window. The transducer has a first orientation for precluding the opening of the corresponding window and a second orientation for allowing the opening of the corresponding window. A control panel is included for selectively transferring the transducer between the first and second orientations thereof.

Abstract: A heated sliding window assembly comprising a fixed portion comprising a circumferential frame and a fixed pane attached to the circumferential frame, with the fixed pane having an electrically conductive heating grid. A sliding pane is slidable within the circumferential frame between an open position and a closed position, and the sliding pane has an electrically conductive heating grid. A first conductive element is mounted on the fixed portion and a second conductive element is mounted on the sliding pane. The first and second conductive elements are routed through a latch assembly, and are electrically connected together when the sliding pane is in the closed position. To connect the heating grid of the sliding pane to the heating grid of a second fixed pane, third and fourth conductive elements are employed, either routed through the same latch assembly as the above mentioned first and second conductive elements or mounted at an end of the sliding pane remote from the latch assembly.

Abstract: A method and apparatus for counteracting the effects of warpage, distortion and/or tilting of a support track in a sliding closure assembly, such that a door in the sliding closure may be freely moved along the support track, but, when desired, may be secured in one or more locations such that an external force is required to move the sliding fixture from its desired position.

Abstract: A magnetically actuated safety lock device provides automatic locking capability to doors such as sliding glass patio doors and prevents unsupervised opening of the door by young children, thereby barring their access to dangerous environments. When the sliding door is closed, it is automatically locked. The lock device is installed in a position high upon the sliding door to prevent actuation by young children and requires no permanent modification to the door on which it is installed. The lock device consists of a locking assembly and a magnetic key. The locking assembly includes a magnetized latch assembly and a mounting bracket. The latch is held in the locked position by gravity and is only rotated into the unlocked position through the application of hand pressure or the repulsive force of the magnetic key. The doors can be unlocked from both inside and outside the door. Upon removal of either the magnetic force or hand pressure, the latch rotates back into the locked position.

Abstract: A fastener for use with a sliding sash window. The fastener has a body (11) with a handle (14) mounted with the body for pivotal movement about a pivot axle (17). A latch tongue (18) is operatively coupled to the handle (14). A latch plate (21) has a latching surface (23) which is engageable in face to face contact with the end of the latch tongue (18). The latching surface (23) is spaced from the pivot axle (17) in the direction in which a sash (S) of a window is movable from a closed position relative to the frame (F) of the window. The handle (14) is movable about the pivot axle (17) to move the end of the latch tongue (18) away from its latching contact with the latching surface (23) of latch plate (21) to permit the window sash (S) to move from the closed position.

Abstract: A locking system for a window sash comprises a lock handle assembly, reciprocating rod members connected to the lock handle assembly, and rotatable cam assemblies connected to the rod members. Each cam assembly has a cam element which upon reciprocation of its respective rod element moves into and out of a cam keeper which is mounted on an adjacent window sash. Each rod member has a rod tip which moves into and out of a channel provided in the window frame. In a first operation of the lock handle assembly, the rod members are reciprocated inwardly to rotate the cam elements out of their respective cam keeper and to move the rod tips partially out of the frame channels which allows the window sash to be moved vertically within the channels. A further operation of the lock handle assembly moves the rod tips entirely out of the channels to allow the window sash to be tilted.

Abstract: A lockable window, and a manual control for a lockable window. The window includes a window sash having a first locking member and a window frame having a second locking member mounted thereon for movement between a locked position cooperating with the first locking member for locking the sash to the frame when closed against the frame and an unlocked position clear of the first locking member to allow movement of the sash relative to the frame. The frame also has an opening therein for allowing access to the second locking member from an interior side of the frame. The lock control has a housing including an enclosure open on one side with a flange around the open one side, the housing being mounted with its enclosure substantially in the frame opening and its flange on the interior side of the frame. A handle is pivotally secured in the housing enclosure and includes an opening at one end.

Abstract: A compact mechanical lock for bi-parting handles of passenger doors used on mass transit vehicles. Rotating lock cams cooperating with an interlocking lock plate to ensure proper closure of each panel prior to lock actuation.

Abstract: A closure system for a sliding main door and a sliding screen door system of the type typically used in houses and some commercial buildings operates to permit three modes of operation of the sliding screen door and the sliding main door relative to one another. In a first mode of operation handles on the doors freely pass by one another and the two doors may be operated completely independently of one another. The handle on the sliding screen door is capable of movement to different vertical positions; and in another position, cooperating surfaces on the two handles cause the sliding screen door always to be closed when the main door is closed. When the main door is opened, however, the sliding screen door in this mode is capable of movement back and forth independently of the main door to the extent of the opening of the sliding main door.

Abstract: A door structure for a magnetically-shielded room intended to absorb interference magnetic fields, particularly very low frequency magnetic fields, and arranged to move substantially rectilinearly in the direction of the plane of the door leaf, and substantially rectilinearly in a direction which is perpendicular to the plane of the door leaf. The door leaf is attached to a support structure of the door leaf by hinge mechanisms so that the door leaf is movable perpendicular to the structure of the door leaf in order to provide a movement in a direction perpendicular to the plane of the door leaf. The door structure includes power transmission members arranged to exert an effect on press members on the edge areas of the door leaf such that the press members turn around hinging members whereby exposed .mu. metal sheet structure on the edge areas of the door leaf is pressed tightly against .mu. metal sheet structure of the shielding wall structure at an aperture in a wall of the magnetically-shielded room.

Abstract: A modular sliding window assembly has a molded plastic frame comprising a molded plastic circumferential frame member and at least one molded plastic post segment within and unitary with the circumferential frame member. The frame defines primary and secondary apertures. A sliding pane having an inboard side and an outboard side is slidable from an open position to a closed position and the sliding pane closes the primary aperture when it moves to the closed position. The sliding pane is secured to the frame by a latch assembly which includes a latch which releasably engages a latch keeper. The latch can be fixedly attached to the sliding pane and the latch keeper made unitary with one of the frame, or, alternatively, the latch may be attached to the frame and the latch keeper may be attached to the sliding pane. Anti-theft means auxiliary to the latch keeper secure the sliding pane to the frame against inboard separation of the sliding pane from the frame.

Abstract: A safety gate is provided for limiting access to a work area. The safety gate includes a linkage pivotally connected to a support, and front and rear gates each being pivotally connected to one end of the linkage. As the linkage pivots about the support to move one gate upward, while moving the other gate downward, each gate remains substantially parallel to one another. The safety gate also includes a latch mechanism for locking the either of the front and rear gates into a particular position.

Abstract: A freight car door securing device which is incorporated into the structure of the freight car door to prevent the rotatable door handle, the rotation of which latches and unlatches the car door in a closed or locked position, from being rotated. The securing device is movable from a position wherein it is out of interference with the movement of the rotatable handle, thereby permitting the door to be opened, to a position in which it is fixed to prevent the handle from rotating, thereby preventing the handle from being operated to open the door.

Abstract: The present invention relates to a four sided flush weatherstrip sealing system, and more particularly, to a weatherstrip sealing system including one or more latching mechanisms which selectively grasp the glass window panel and bring the panel into enhanced engagement with the weatherstrip sealing assembly. Also provided are improved sealing arrangements for the window panel along the vehicle door rear view mirror and the B pillar portion located below the vehicle door belt-line.

Abstract: A bifold door comprises a pair of door panels 12.1, 12.2 joined to one another along a centre hinge 14. Each door panel, at the end thereof remote from the center hinge, is supported on a track 16 by a runner assembly 18 to which the door panel is pivotally connected. Each runner assembly is provided with a cam 32 whereby the runner assembly can releasably be locked in position with respect to the track.

Abstract: A powered vehicle door closing system for producing an auto-closing action to automatically move a latch member from a half-latched position to a fully-latched position comprises a reversible motor mechanically linked through a linkage to the latch member, for powering a final, low-displacement/high-force movement of a vehicle door, and a controller for controlling the motor. The controller includes a full-latch confirmation section for confirming that the latch member is maintained at its fully-latched position, and a motor-drive limiting section for limiting re-activation of the motor so as to avoid ineffective auto-closing action of the system when the full-latch confirmation section decides that the latch member has already been shifted to and maintained at the fully-latched position.

Abstract: A powered vehicle door closing system for producing an auto-closing action to automatically move a latch member from a half-latched position to a fully-latched position, comprises a reversible motor mechanically linked through a linkage to the latch member for powering a final, low-displacement/high-force movement of a vehicle door, a half-latch detection switch such as a limit switch, and a controller for controlling the motor. The controller comprises a full-latch detection section for detecting the fully-latched position of the latch member and a stand-by position detection section for detecting the stand-by position of the linkage. To detect the fully-latched position and the stand-by position, the full-latch detection section and the stand-by position detection section respectively utilize changes in load imparted to the motor.

Abstract: The sliding sash is supported at a guide rail by a sash portion projecting from the floor in a vertical plane and a sash portion ascending in an inclined plane relative to the inside adjoins an additional tipper sash portion which projects up in the vertical plane and is set back. Every sash portion is formed by a section bar arm receiving a glass pane. The upper sash portion is guided at a ceiling rail with two running paths which are arranged at a distance from one another and parallel to one another. In order to secure this guide relative to loading by wind and/or snow, each running path is formed of two inclined guide paths of a web head of the ceiling rail, this web head having a triangular cross section, and support rollers which are supported at an inclination run on the guide paths of every web head at a roller holder which is fastened to the terminating section bar of the upper sash portion.

Abstract: A door opening of an operator cab for a construction machine is enlarged so that protrusion of the door beyond a turning radius can be avoided when the door is fully opened and so that the operator cab can have a wide indoor space. Therefore, a side wall (2a) of the operator cab (2) at an opposite side to a boom of a working-machine installed on a swivel base (1) is formed to have an outer convex surface, including the door; rails (4, 5 and 6) are provided on the side wall (2a) of the operator cab (2); the door (3) is provided with rollers (7, 8 and 9) which are always engaged with the rails to slide the door for easy opening and closing operation, and the position of the door (3) when the door is locked fully open is set to be within a range of turning radius (R) of the swivel base (1) along the outer surface of side wall (2a) of the operator cab (2).

Abstract: Window vent stop devices are provided by this invention which include housing and stop block portions in which the stop block is pivotally mounted within the housing to provide a first position for permitting at least one of the sashes of a window to slide freely by the other, and a second position which causes the stop block to impinge against the other sashes to limit the sliding movement of the sashes. The stop block includes an integral spring arm to assist it in moving from the first and second positions.