Abstract: A foldable ramp includes first and second sections longitudinally aligned with each other and joined by a hinge assembly permitting the sections to be pivoted to a working position in which the sections form a continuous, substantially straight ramp with adjoining ends abutting against each other and a storage position in which one of the first and second ramp sections is folded against the other. The hinge assembly includes four links extending along the first and second ramp sections and first and second pins transversely extending through the first and second ramp sections, respectively, and through each of the links.

Abstract: A hinge system for a curved surface that has several first hinges arranged along a straight hinge line and at least one second hinge offset from the hinge line. In a preferred embodiments, these hinges are fastened to a pylon and support a curved portion of an aircraft jet engine cowl, which may contain a thrust reverser assembly, to permit the cowl to pivot away from the engine for examination or repair of internal components. The hinges also accommodate engine thermal expansion which changes the distance between hinges along the cowl. The first hinges have their hinge points lying along the straight cowl hinge line. The second hinges include a plurality of short first links pivotally connected to the supporting pylon, and a plurality of short second links pivotally connected to the first links and the cowl. The link lengths are selected so that the assembly pivots about a hinge point outside the hinge structure that lies along the straight hinge line formed by the first hinges.

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

Abstract: A pivoted fitting or turn-and-tilt fitting for windows, doors or the like comprises a bottom turn-and-tilt bearing and a top pivot bearing, both bearings being in each case constructed with two links in order to shift the pivot axis during pivoted opening of the leaf frame. In order to relieve the links of the weight of the leaf, it is suggested that the leaf frame be supported on the fixed frame via an arrangement which is independent of the links of the two pivot bearings.

Abstract: A hinged structure comprises a forward body and a rear body each having a surface face and a channel. A first hinge link and a second hinge link are employed to pivotably and slideably connect the forward body and the rear body and to provide movement of the bodies between an open position and a closed position. The first hinge link has a fixed end pivotably affixed to the forward body and a sliding end pivotably and slideably affixed to the rear body. The second hinge link has a fixed end pivotably affixed to the rear body and a sliding end pivotably and slideably affixed to the forward body. The sliding ends of the hinge links are pivotably and slideably affixed to their respective bodies by a pin engaging a hinge slide fitted within the channel of the respective body. Means can be used to secure the rear body to the forward body when the hinge is in the closed position.

Abstract: A mechanically operable actuating device for opening towards the outside and closing a cargo hatch or freight door in the fuselage of an aircraft comprises two hinges for connecting an upper side of the door or hatch to the fuselage; a first swivel joint floatingly mounts the upper end of a coupling member to a reenforcing part in the upper portion of the hatch or door; a second swivel joint floatingly connects a rocking arm to a hatch or door frame of the fuselage; a third swivel joint connects the rocking arm to the lower end of the coupling member; a fourth swivel joint connects one end of a gas pressure spring to the rocking arm so that the spring extends substantially parallel to the coupling member; and a fifth swivel joint connects an opposite end of the spring also to the upper end of the coupling member.

Abstract: A hinge for mounting a false front for swinging between closed and open positions on a cabinet. The hinge includes first and second mounting brackets adapted to be secured to the false front and the cabinet, respectively. A first link has one end pivotably and slidably connected to the first bracket and an opposite end pivotably connected to the second bracket. A second link is pivotably connected between its ends to the first link, has one end pivotably connected to the first bracket, and has an opposite end pivotably and slidably connected to the second bracket. The hinge permits the false front and a tray thereon to be opened to an easily accessible position and enables the false front to be located between and closely adjacent to the countertop and the doors of the cabinet.

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

Abstract: To be able to mount a mitered door to a mitered wall and open it as wide as possible, and for keeping the miter joint as tight as possible, a hinge for the door comprises two base parts or inner and outer housings which are likewise mitered, making close contact with each other in the "closed position" of the hinge and being coordinated with the miter plane of the piece of furniture or the like. The two base parts are interconnected by long brackets and short brackets, the long brackets forming crosses and being connected by a pin. The inner housing is adjustable relative to the outer housing in the longitudinal direction and in the transverse direction, each by given amounts. Each adjustment is made via a turnable pinion acting upon a rack of a first intermediate member. The adjustment of the inner housing relative to the outer housing is achieved via the intermediate members, each of which is retained in one direction.

Abstract: Hinge mechanism for a vehicle door comprising a vehicle frame having a mounting surface extending along the vehicle frame, another mounting surface extending along the vehicle door proximate the mounting surface on the vehicle frame, and support members extending between the mounting surfaces to support the door. The support members comprising support arms pivotally attached between brackets positioned on the mounting surfaces. The support arms are pivotally attached through rotary shafts, which are individually mounted at opposite ends of each of the support arms. The rotary shafts are aligned along independently inclined axes, which define a point of convergence beneath the hinge mechanism for the independent axes, so that the upper portion of the door is positioned away from the vehicle frame when the door is opened.

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

Abstract: A hinge for a knee joint comprising two complimentary elements. One of said elements is a plurality of interconnected links. The links are interconnected in zig-zag manner. The other of said elements is a cable. The linkage and the cable are secured at the respective opposite ends to plates or like elongated elements.

Abstract: A hood hinge mechanism includes upper and lower brackets interconnected by pivoted links. An auxiliary hinge member is pivoted to the upper bracket and secured to the hood. The lower bracket is secured to the body. The upper hinge bracket and auxiliary hinge member are releasably secured to each other and normally move together as the hood moves between closed and partially open positions. When the auxiliary hinge member is released from the upper hinge bracket, the hood can be moved to various further open positions.