Abstract: A device for mounting a sliding of door on a wall to enable slidable movement of the door to open and close a wall opening. The device includes a guide profile having a horizontally-orientated base forming a track, which is attached to a correspondingly horizontally-orientated upper end of the door via a fastener. The guide profile further includes an inverted U-shaped seat extending upwardly from and positioned over the base. A trolley slide is fixedly attached to the wall above the wall opening via a fastener. The trolley slide has one or more vertically-orientated rotatable wheels configured for insertion into and engagement with the inverted U-shaped seat, such that sliding movement of the door effects rotation of the wheels within the inverted U-shaped seat. A cushioned stop positioned at an end of the track is configured to contact the trolley slide to stop slidable movement of the door.

Abstract: Disclosed is a sliding door self-closing device configured to automatically close a door moving along a rail straightly aligned with an extension rail. The sliding door self-closing device includes a damper configured to move along the rail to automatically close the door and smoothen a closing speed, and a roller assembly pivotably connected to a front end of the damper to move along the rail and provided to be rotatable at the front end of the damper by a predetermined angle. Therefore, it is possible to ensure appropriate driving along the rail even when the rail is deformed. In addition, it is possible to easily remove the damper and the roller assembly through a short space of the extension rail.

Abstract: Disclosed is a multi-directional rotational sliding door self-closing device configured to automatically close a door moving along a rail straightly aligned with an extension rail. The self-closing device includes: a damper provided with a roller at its rear end and configured to move along the rail to automatically close the door and smoothen a closing speed; a roller assembly multi-directionally rotatably connected to a front end of the damper and configured to move along the rail; and a roller bracket connected to the roller assembly and fixed to an upper end of the door; and a coil spring inserted into an insertion hole provided in the roller assembly and configured to abut on a tip of the damper when the damper and the roller assembly are straightly aligned. The rail can be appropriately driven even when the rail is deformed. The damper and the roller assembly can be easily removed through a short space of the extension rail.

Abstract: A sliding gate assembly for an elevator comprises a track having a flat upper surface. A connecting block is secured to a portion of the flat upper surface. A wheel carriage is operable to ride on the track, the wheel carriage including two arms oriented orthogonally to the flat upper surface of the track and extending upwardly around an outside portion of the track and beyond the flat upper surface. A set of wheels is also provided, each wheel being rotatably coupled to one of the two arms of the wheel carriage above the upper surface of the track, each wheel rotating about a rolling axis that is substantially parallel to the flat upper surface of the track.

Abstract: A sliding door assembly comprising one or more glass doors. Roller units are secured to a top portion of each the glass doors. The roller unit have a roller portion projecting out of a plane of the glass door. End members adapted to be secured to a structure at opposite ends of two transoms. Each said end member has two receptacles for receiving opposed ends of the end members. The receptacles of each said end member being spaced apart to hold the at least two transoms in a spaced apart and generally parallel relation, such that a guideway is defined between the transoms for holding captive the roller portion of the at least one roller unit for movement of the at least one glass door in its plane.

Abstract: A hanger for a sash of a window to detachably engage the sash with a rail of the window, and the hanger includes a pulley assembly and a restricting assembly. The pulley assembly has a base and a plurality of pulleys mounted on the base for rotation. The pulleys engage the rail so that the pulley assembly moves in the rail. The base is provided with a slot. The sash is provided with a rod. The rod engages the slot of the pulley assembly to engage the sash with the rail, and the rod leaves the slot via a lateral opening thereof while the covering rotates for a predetermined angle. At this time, the sash is disengaged with the rail to be moved off the window.

Abstract: A method of height adjusting a hanger bolt with a threaded shaft and side flats in a threaded retainer of a bogey proceeds by rotating the bolt to adjust the axial position and height of the bolt relative to the retainer. A keeper of a lock mechanism housed within a body of the bogey is slid into an engaged position against flats of the bolt in order to prevent further rotation of the bolt relative to the retainer.

Abstract: A covering of a building opening includes a rail, a first sash having a guiding slot, a second sash hinged with the first sash and having a center of rotation at an end thereof, a pulley assembly, and a restricting assembly. The pulley assembly is movably received in the rail and has a rod. The rod has a protrusion section extending out of the rail, and the protrusion section enters and leaves the guiding slot while the pulley assembly is moving. The restricting assembly has a moving member and a locking base. The moving member is provided on one of the first sash and the second sash, and the locking base is provided on the other. The moving member is moved by the rod and engages the locking base when the rod leaves the guiding slot.

Abstract: A hanger for a sash of a window to detachably engage the sash with a rail of the window, and the hanger includes a pulley assembly and a restricting assembly. The pulley assembly has a base and a plurality of pulleys mounted on the base for rotation. The pulleys engage the rail so that the pulley assembly moves in the rail. The base is provided with a slot. The sash is provided with a rod. The rod engages the slot of the pulley assembly to engage the sash with the rail, and the rod leaves the slot via a lateral opening thereof while the covering rotates for a predetermined angle. At this time, the sash is disengaged with the rail to be moved off the window.

Abstract: A bogey assembly including a body for supporting a cantilevered hanger bolt, a wheel to support the body on a rail and a roller, spaced lengthwise of the body and offset relative to the wheel, so as to bear against an overhead surface and resist rotation of the body away from the rail when load is applied to the hanger bolt.

Abstract: A bogey assembly (1) for supporting a hanger bolt, the bogey assembly (1) including a body (2) for supporting the hanger bolt when in use and a lock mechanism (32) operatively mounted to the body (2), the lock mechanism being operable so as to be able to adopt a locked condition, where the hanger bolt is restricted from movement relative the body (2), and a unlocked condition where the hanger bolt can be moved relative to the body (32).

Abstract: A drive carriage for a sliding curtain including a first carriage portion which is movable along a rail by at least one wheel assembly mounted thereto and a second carriage portion which is also movable along the rail and wherein the first and second portions of the carriage are connected by a coupling piece which is selective mounted in at least two positions with respect to the first and second portions so as to adjust a length of the drive carriage.

Abstract: The device used to hold a separation element includes a carriage with a carriage body and at least one wheel which rolls on a running surface of a rail. The carriage is releasably connected to a mounting element which is connected to the separation element. The mounting element which is mounted laterally on an upper edge of the separation element includes a guide profile provided with a first guide surface which holds a lower and an upper flange element of the carriage body inserted therein which can be displaced along the first guide surface extending inclined by a first angle relative to the upper edge of the separation element and can be locked in an appropriate position by means of locking elements.

Abstract: A bogey assembly including a body for supporting a cantilevered hanger bolt, a wheel to support the body on a rail and a roller, spaced lengthwise of the body and offset relative to the wheel, so as to bear against an overhead surface and resist rotation of the body away from the rail when load is applied to the hanger bolt.

Abstract: The present invention relates to a mechanism for a sliding-type glass pane, of those formed by a top guide profile, placed against the wall and provided with a rib on which a rolling element moves; a bottom guide; a suspension device and top retaining stops, in which the suspension device has a larger outer plate and two smaller inner plates, which define a space between them in which the rolling element is housed and in which the top retaining stops are provided with respective horizontal flats so as to retain the cylinders.

Abstract: A roller support assembly is used to support sliding doors, windows or the like. The assembly includes a housing member having spaced apart side walls and interconnecting transverse walls defining a roller receiving zone for receiving and operationally mounting a roller assembly. The roller assembly has a roller body with a rolling peripheral rim and a shaft whereby the roller body is rotatable relative to the shaft having short stub axle parts. The housing side walls including openings that are fully enclosed by the side walls into which the short stub axle parts fit. The housing side walls further include projecting elements extending inwardly from an inner surface of a housing side wall to cooperate with the corresponding roller body side wall surfaces to spay the housing side walls apart as the roller assembly is moved into the roller receiving zone to locate the stub axle parts in the openings.

Abstract: A curtain carrier includes a carrier body having a mounting ring which has an inner wall provided with a sliding face, a first support seat having a connecting tube which is inserted into the mounting ring and has an inner wall provided with an engaging hole, a second support seat having an engaging sleeve which is inserted into and closely fit in the engaging hole, and a rolling module located between the first support seat and the second support seat and slidably mounted between the sliding face and the connecting tube. Thus, the curtain carrier has a simplified construction, thereby greatly decreasing the cost of fabrication. In addition, the first support seat and the second support seat are assembled easily and quickly, thereby facilitating assembly of the curtain carrier.

Abstract: A carriage which serves to hold a panel, has at least one running element such as a magnet, a wheel and/or a sliding element which is held by at least one corresponding magnetic element or supported on a running surface of an at least approximately U-profile or L-profile-shaped rail. The carriage comprises one or two carriage parts which can be anchored to the panel by mounting elements, such that the two carriage parts can be anchored on the opposing sides (4a, 4b) of the panel. One carriage part is further contemplated, which can be introduced into a groove arranged on the upper side of the panel between the sides and anchored there by the mounting elements. Further provided is a carriage and a mounting device which can be coupled to the carriage and to the glass panel with two assembly parts which are each formed or mounted on one side on the upper side or within a groove of the panel.

Abstract: A window roller apparatus comprising a cradle, a housing pivotably installed in the cradle, and at least one roller wheel rotatably installed in the housing. Cradle side walls are formed with opposite inwardly-opening cradle side wall recesses, and respective housing side walls are formed with opposite inwardly-opening housing side wall recesses and with opposite outwardly-projecting bosses configured to pivotably engage the respective inwardly-opening cradle side wall recesses. The at least one roller wheel has an axle that engages the housing side wall recesses. A resilient pad is positioned on the cradle bottom wall between the cradle and the housing, the pad being of a sufficient size and thickness to at least partially engage the housing and effectively bias the housing toward a parallel orientation relative to the cradle while allowing for non-parallel operation of the housing relative to the cradle as dictated by operational constraints on the window roller apparatus.

Abstract: A guiding system for a sliding door, especially a motor vehicle, comprising a sliding rail (5) with an upper cover (6) and a lower edge (7) arranged opposite the upper cover (6), and a roller element (101) which is guided in the sliding rail (5) and comprises a roller element housing (102) is presented. Three rollers (103, 104) are rotatably fixed to the roller element housing (102), two rollers (103) extending along the upper cover (6) of the sliding rail (5) and the third roller (104) extending along the lower edge (7). The invention creates one such guiding system in such a way that there is no play, it operates quietly, and has a taut system characteristic. To this end, a spring element (109) is fixed to the roller element housing (102), said spring element pressing on of the first two roller (103) and the third roller (104) against the sliding rail (5).

Abstract: A drapery arrangement includes a drapery fabric, a sliding track, and a plurality of sliding wheels. Each of the sliding wheels includes a sliding hanger, a wheel seat, a central connecting shaft, and a plurality of sliding elements. The wheel seat, having a rotating groove, is adapted to fittedly receive in a toggle cavity of the sliding hanger, wherein the wheel seat has a through connecting channel extended along a radial direction thereof. The central connecting shaft penetrates though the connecting channel enhancing a structural rigidity of the respective sliding wheel, and evenly distributing a load imposed on the sliding wheel. The plurality of sliding elements is rotatably received in the rotating groove for running on a circular sidewall of the toggle cavity, wherein the sliding wheel is slidably mounted on the sliding track for sliding therealong.

Abstract: One embodiment of a handle attachment assembly formed in accordance with the present invention is provided. The handle attachment assembly may be used for removably attaching a handle to an elongate shaft having a proximal end and a distal end. The handle attachment assembly may include a hand grip adapted to be gripped and held by a user and a clamp assembly. The clamp assembly may be coupled to the hand grip for removably attaching the hand grip to the elongate shaft between the proximal end and the distal end of the elongate shaft. The clamp assembly may include a first V-shaped clamp and a second V-shaped clamp. A fastening assembly may be used for driving the first V-shaped clamp toward the second V-shaped clamp to removably clamp the elongate shaft between the first and second V-shaped clamps.

Abstract: A window roller apparatus comprising a cradle, a housing pivotably installed in the cradle, and at least one roller wheel rotatably installed in the housing. Cradle side walls are formed with opposite inwardly-opening cradle side wall recesses, and respective housing side walls are formed with opposite inwardly-opening housing side wall recesses and with opposite outwardly-projecting bosses configured to pivotably engage the respective inwardly-opening cradle side wall recesses. The at least one roller wheel has an axle that engages the housing side wall recesses. A resilient pad is positioned on the cradle bottom wall between the cradle and the housing, the pad being of a sufficient size and thickness to at least partially engage the housing and effectively bias the housing toward a parallel orientation relative to the cradle while allowing for non-parallel operation of the housing relative to the cradle as dictated by operational constraints on the window roller apparatus.

Abstract: The invention relates to a sliding element, which is suspended and guided on a running track by means of roller carriers or gliding elements, using running track retainers that are connected to a substructure and engage with the underside of the running track. The invention also relates to an anti-removal device, which comprises a locking elements that can be pressed elastically against the running track and that yields when crossed by a running track retainer.

Abstract: The invention includes a clasp that can be mounted to the roller track of an overhead door and a shim that can be mounted to the overhead door or the shaft of the roller. The clasp includes a portion for attaching to the roller track and a blocking portion that is secured in proximate location to the inner surface of the overhead door. When the overhead door is in a closed position, the shim and the blocking portion are engaged thereby encouraging the overhead door towards the door frame. Multiple clasp and shim assemblies can be mounted to the overhead door to improve the seal between the overhead door and the door frame.

Abstract: A wheel assembly adapted to travel along guide rails or tracks. The assembly includes a roller formed of porous sintered metal, a shaft attached to a supporting body and an adapter to which both the roller and shaft are connected. The adapter includes a cylindrical inner portion with an axial socket to receive the shaft and a cylindrical inner portion of a smaller diameter to define an annular inner shoulder. A spring retainer secures the roller to the adapter.

Abstract: A door truck which has a one piece frame and plastic wheels for operation in an overhead track for supporting a door in which the wheels are mounted to the frame with barrel nuts and a threaded stud. The frame has a door supporting portion through which a pendant nut can be extended with its head mounted upwardly or downwardly so as to support a door.

Abstract: A wear guide insert for use in rail car door support carriages for sliding rail car doors. Wear guide inserts are positioned in the wheel carriage openings for intermediate engagement with a supporting track on which the wheel carriages travel. The inserts are of a self-lubricating synthetic resin material that acts as guide bearing surfaces for the wheel carriages maintaining the carriages on the support tracks as the rail car doors are slid open and closed.

Abstract: A hanger assembly for a sliding screen door comprises a horizontally mounted track that fits within a standard door header and roller assembly, preferably one roller assembly per side of the screen door. Each roller assembly comprises at least a roller, and preferably two per roller assembly, and a holder that connects the roller(s) to the screen door. The holder includes a connecting bar portion that attaches to the roller(s) and a generally U shaped bracket portion that extends downwardly from the connecting bar portion, whereby the screen door is positioned and held snugly within the U shaped portion. A side of the bracket U shaped portion includes a slot for vertically and/or horizontally adjusting the screen by positioning of attachment means through the slot such as a screw.

Abstract: A guiding block for pulling a window curtain comprises a pulling plate, a left wheel seat, a plurality of rolling balls, and a right wheel seat. A confining cap is formed between the right wheel seat and the rolling balls. The primary body of the confining cap is a circular plate with a through hole on the center thereof. Claws with respective to the gaps between each two rolling balls are axially extended from the circular plate on the inner side of the confining cap. Not only the rolling action is smooth, but also the friction and collision between two rolling balls is prevented. Other then noises from frictions and collisions are reduced, the lifetime of the window curtain is prolonged. The circular groove of the convex tube on the right wheel seat is enforced into the rib on the inner rim of the convex tube on the left wheel seat so as to form a buckling state for combining the left wheel seat. Thus, sliding therebetween is seldom occurred and the stability of the combination thereof is increased.

Abstract: A carrier slide is provided for window coverings and includes a main body, at least one vertical roller assembly, and at least one horizontal roller assembly. The main body includes at least one compartment defined therein. At least one vertical hole is defined in an upper end thereof and communicated with the compartment, and at least one transverse hole is defined in the upper side thereof. The vertical roller assembly includes a first roller rotatably received in the compartment. The first roller has a diameter greater than a width of the main body and smaller than a width of a track so as to be in a rolling contact with two inner lateral walls of the track. The horizontal roller assembly includes a second roller rotatably attached to a lateral side of the main body. The second roller is in a rolling contact with the inner face of the bottom wall of the track.

Abstract: An overhead door having two tracks each of which is designed to be mounted on the side of an opening in a building. Each track has a script-v shape in cross-section, and a groove or channel that runs along its longitudinal axis. One or more panels are positioned between the tracks and coupled to each other. Each panel has a multiple-layer design that provides superior insulation. At least two plungers are positioned on each panel and each plunger has a first end which is biased in a first position. In the first position, the first end of the plunger rides within the channel of the track. The plungers are designed with a low-friction tip that wears away after repeatedly traveling in the channel of the track. The plungers may be designed to release from the track when the panel on which they are mounted is impacted, to rotate in whole or in part as they travel in a channel of a track, or both.

Abstract: A hinge and roller assembly for use in a roll-up door including a pair of leaves each forming a portion of a bearing socket, a bushing mounted in the bearing socket, a shaft slidably mounted in the bushing. The shaft mounts a roller on one end and the roller is adapted to roll in a track. A spring is mounted between the shaft and the bushing to bias the shaft axially toward the track. A releasable retainer on the bushing removably retains the bushing in the socket. Preferably, each of the leaves includes a plate through which the hinge is mounted to the door and an integral strap which is bent into a circular shape to define a portion of the socket and is attached at a distal end to the plate.

Abstract: A drive gear for a guide rail with a partition wall or similar device in a hanging bearing from the drive gear, whereby the drive gear has a carrying roller and two guiding rollers. The guiding rollers have a truncated vertical section and approach with their casing surface as close as possible to the carrying roller's casing surface while still maintaining a minor gap. The guiding rollers are supported in guiding roller receivers in a way that the gap between the guide rail, passing above the carrying roller and the guiding rollers, and the carrying roller and the guiding rollers respectively is approximately identical.

Abstract: An article transport assembly which is particularly designed for the conveyance of articles such as printing products, and which comprises a guide rail, and a plurality of article transport devices mounted for movement along the guide rail. Each transport device comprises a U-shaped transport body having a base leg and the two upright side legs, and with a gripper for engaging a printing product attached to the base leg. The two side legs each mount a pair of guide rail engaging members, with the two pairs of guide rail engaging members being positioned to engage both sides of the guide rail at two longitudinally spaced apart locations, and so as to permit the guide rail engaging members to move along the guide rail essentially free of play.

Abstract: An apparatus for supporting one or more theatrical panels and, in a more specific aspect, a carriage assembly adapted for such task in association with a horizontal track having an upper guide surface and a lower guide surface, provide horizontal movement quietly, smoothly, with low frictional resistance and in a highly-linear fashion with low rock and sway. A horizontal track comprising an upper guide surface and a lower guide surface supports a carriage assembly having a plurality of upper guide wheels and a plurality of lower guide wheels. The upper guide wheels are supported in rolling contact with the upper guide surface and the lower guide wheels are supported in rolling contact with the lower guide surface. The axles supporting the upper guide wheels are preferably horizontally offset from vertical lines extending through any of the axles supporting the lower guide wheels. The guide wheels are preferably resilient at least at the surface and grooved to engage the guide surfaces.

Abstract: A wheel unit is disclosed for supporting a structure for movement on a track. The unit includes a rotatable wheel having a substantially flat bearing surface and supported on an axis for running on a track. A housing supports the wheel and includes a convex-shaped guide for maintaining the wheel on the track. A wheel and track combination is also disclosed wherein the wheel has a contact surface having a first dimension and supported by the housing to rotate about an axis. The track supports the housing and wheel and includes a contact surface for contacting the contact surface of the wheel and wherein the contact surface of the track has a second dimension larger than the first dimension of the contact surface on the wheel. Preferably, a guide keeps the wheel on the track while permitting the wheel to move laterally on the track.

Abstract: A multidirectional carrier and track generally comprising a disc, a track, and structure on the track defining a disc supporting surface. The disc is supported for rotation about an axis. The disc is in engagement with the disc supporting surface and has first and second ball bearing assemblies. The ball bearing assemblies have inner and outer races, the inner races mounted adjacent one another along the axis. The disc also has an outer cylindrical rim portion, the rim portion have an inner-facing surface, an outer-facing surface and upper and lower surfaces, the inner-facing surface engaging the outer races and the lower surface contacting the track. Structure on the inner-facing surface defines axially spaced faces projecting radially inward towards the axis in step-wise fashion, forming two axially-facing shoulders projecting from the inner-facing surface.

Abstract: A track system for an operable wall includes carriage assemblies for partitions or operable wall sections including at least four wheels per assembly, the wheels being mounted on vertical shafts and having beveled lower surfaces for cooperating with beveled riding track surfaces integrally and conformably supported by support brackets.

Abstract: A wheel (10) for rolling drawer guides in furniture construction. A wheel body journaled on a wheel shaft and made from a hard plastic of good stability of shape has a circumferential, groove-like gap opening into the wheel rim, and in it there is disposed a tire of resiliently deformable material, preferably elastomeric plastic, protruding slightly above the rim surface of the wheel body. In at least one of the confronting side surfaces and/or in the circumferential bottom surface of the groove-like gap there is provided at least one, preferably a plurality of indentations in which the material of the tire, converted to fluid from and then to the resiliently deformable state, interlockingly engages. From one of the outer faces of the walls at least one injection hole extends into the groove-like gap.

Abstract: A sliding door assembly comprising a door hanger, a hanger sheave, an upthrust roller and a track, wherein the hanger sheave assembly and the uptrust roller are rotatably mounted on the door hanger. The track provides a first rolling surface for the hanger sheave and a second rolling surface for the upthrust roller. The track also preferably captures the upthrust roller thereby preventing the assembly from leaving the track.

Abstract: A system for accessing interior portions of a curtainside truck trailer including a flexible curtain, upper and lower roller assemblies secured to the curtain for engagement with upper and lower rails mounted on the truck trailer for supporting the curtain during expanding and contracting movement along the rails. A support panel is mounted between upper and lower longitudinal edge portions of the truck trailer, and a latching mechanism is connected to the support panel which includes a shaft with a vertical axis of rotation, a latch attached to the shaft engagement with a keeper attached to the curtain. An operating member is attached to the shaft for rotating the shaft about its longitudinal axis and engaging the latch and keeper. A latch guide is captively engaged by the latch and attached to the support panel for guiding movement of the latch into engagement with the keeper. A spring biased locking mechanism for locking the latching mechanism and securing the curtain in the closed position.

Abstract: With a suspended sliding partition with a level track (1) and at least one panel-like element (3) is provided an upper mounting rail (4) which is suspended from the track (1) by two carrying bolts (2) which extend through a continuous slot in the underside of the track (1) into the latter and are there each connected to a carrying device (26, 27, 28, 40) which is supported in the track (1). The track (1) has two guide channels (12, 20) arranged at a distance one above the other and provided with lateral guiding surfaces (13, 21) on both sides, as well as a level supporting surface (17). On each carrying bolt (2) are mounted two lateral guiding elements (23, 30, 33, 34) which are guided in one of the guide channels (12, 20), as well as the carrying device (26, 27, 28, 40) which is supported on the supporting surface (17).

Abstract: A track and trolley system that allows wall panels to be moved with a minimum amount of friction is disclosed. The system includes a track having a first rail, a second rail which is higher than the first rail, and a trolley having two drive wheels that engage the rails via annular track engaging surfaces of different diameters. Each drive wheel is independently rotatable in opposite directions. The system further includes a wall panel mount assembly haivng a housing integral with a movable wall panel and slide pads at track intersections to reduce the vertical elevational drop of a trolley when it moves across a track intersection.

Abstract: An improved sliding door composed of articulated strips in which the novel features are a high guide containing a rotating vertical wheel that supports two adjacent strips and a rotating horizontal wheel that follow a curved track. Additional features include a floor guide that contains only straight segments that are not joined together the corner and a base guide attached to the articulated strips that travels within the floor guide without touching said floor guide during stationary or ordinary operation of the door.

Abstract: A support and guide system for movable door or wall elements is disclosed, which system comprises stationary ceiling channels with channel junctions. Running in the ceiling channels are trolleys from which the door or wall elements are suspended through a gap in the ceiling channel. The trolleys feature trolley rolls which are rotatable about horizontal axles which are located on the side edges of a square. Provided in the areas of the channel junctions are additional support elements, in the ceiling channels, for trolley support. To enable a material- and weight-saving design, the support elements are inserted in the ceiling channels, on support arms, at a specified spacing above the trolley, while above the trolley there is a support plate mounted which is supportable from underneath by the support elements.

Abstract: A slideably and rotatably mounted roller member performs a precision take up reel function in the environment of a track mounted, drawable, pleated window covering. The roller member slides along an axis coincident with its axis of rotation as it rotates so that cord being wound therearound attendant its rotation is taken up in the absence of overlapping. One end of the roller member is provided with a centrally bored and threaded plug that screw threadedly engages a fixed position screw member; as the roller member rotates, the engagement of the screw member and the bore drives the plug and hence the roller member in an axial direction. The slideable mount of the roller member is provided in the form of a base member which is slideably received within the roller member housing.

Abstract: Hardware for converting a door panel into a sliding door includes a pair of two-wheel trolley assemblies for supporting a door panel, a one piece track for attachment above a door opening, and a guide assembly for the bottom of the door panel for stabilizing the door when it is in the closed position. The track has running surfaces at 90.degree. to each other on which the wheels run. For use with doors for refrigerated rooms, one of the running surfaces has elevated portions for raising one wheel of each trolley. When on the elevated portions, the door panel is moved outwards from the door opening, thereby minimizing damage by the sliding panel to the door seals.

Abstract: A device for suspending and guiding an oblique-displacement sliding door, especially for railroad cars, comprises a rolling element which is attached to the door by means of a connecting member (4) and comprises two rollers (Gs, Gi) mounted within a tubular guide track (6). The rolling surfaces (6a, 6b, 6c, 6d) of the guide track (6) are located in oppositely-facing relation on each side of the connecting member (4) and at an oblique angle with respect to this latter. The profiles of the two rolling surfaces and of the two rollers are adapted to each other so as to prevent translational displacement of the rolling element (2) in a plane transverse to the guide track (6).

Abstract: There is disclosed a pickup truck cap having a roll-away or sectional overhead door in which the cap has a door frame at the rear thereof with a depending portion adapted to fit in the tailgate receptor portion of the truck bed. The guides for the door comprise channel members of tubular cross-section having a longitudinal side opening facing the door which is provided with opposed, narrow, rolling surfaces and the door is provided with rollers adapted to roll on these rolling surfaces. The rollers have a flange to prevent them from pulling out of the channel and are spring-biased to accommodate rocking of the truck.