A hinge includes: a first and second gear; a cover configured to attach the gears; a first outside surface associated with the first panel; a second outside surface associated with the second panel; wherein when the first and second outside surfaces are in a generally co-planer orientation, a tooth from one of the first and second gears fits next to a tooth from the other of the first and second gears to form a water shedding joint. A method of forming a hinge includes: extruding a gear together with a panel having a first outside surface; a second panel a second outside surface; wherein when the first and second outside surfaces are in a generally co-planer orientation, a tooth from one of the first and second gears fits next to a tooth from the other of the first and second gears to form a water shedding joint.

The present invention relates to inflatable bladder actuated water control gates for control of open channels such as rivers and canals and for control of dam spillways without the need for intermediate piers. The air bladder and hinge flap wedge clamping system includes hinged engagement of the upstream edge of the clamps to the foundation so as to prevent the application of bending and shear loads to the anchor bolts. The resulting configuration facilitates the use of high strength alloy steel anchor bolts in a corrosion protected environment and also prevents tensile loading of the concrete foundation and associated cracking of the concrete foundation.

The present invention relates to inflatable bladder actuated water control gates for control of open channels such as rivers and canals and for control of dam spillways without the need for intermediate piers. The air bladder and hinge flap wedge clamping system includes hinged engagement of the upstream edge of the clamps to the foundation so as to prevent the application of bending and shear loads to the anchor bolts. The resulting configuration facilitates the use of high strength alloy steel anchor bolts in a corrosion protected environment and also prevents tensile loading of the concrete foundation and associated cracking of the concrete foundation.

A panel-and-frame assembly includes panel pivotally connected to an integrated frame. The panel includes a leaf extending on an external side and an axle extending on and along an edge of the leaf The leaf is made with a width smaller than a diameter of the axle. The integrated frame includes a channel extending in an internal side of the integrated frame and including a slit in communication with a recess. The recess receives the axle. The slit is made with a width smaller than the diameter of the axle to keep the axle in the recess. The width of the slit is larger than thickness of the leaf to allow pivoting of the panel relative to the integrated frame between an opening position and a closing position.

A panel-and-frame assembly includes panel pivotally connected to an integrated frame. The panel includes a leaf extending on an external side and an axle extending on and along an edge of the leaf The leaf is made with a width smaller than a diameter of the axle. The integrated frame includes a channel extending in an internal side of the integrated frame and including a slit in communication with a recess. The recess receives the axle. The slit is made with a width smaller than the diameter of the axle to keep the axle in the recess. The width of the slit is larger than thickness of the leaf to allow pivoting of the panel relative to the integrated frame between an opening position and a closing position.

A hinge has a hinge body forming an articulating section extending between a first end and a second end of the hinge. The articulating section is adapted to bend from a neutral axis when the first and second ends are parallel to an angular range in which the first end is arranged among a plurality of angles within the angular range relative to the second end. The hinge body may define a receptacle along the articulating section, and an insert may be provided for insertion into the receptacle. The insert can modify the stiffness of the hinge in the angular range and is arranged parallel to the neutral axis.

A hinge has a hinge body forming an articulating section extending between a first end and a second end of the hinge. The articulating section is adapted to bend from a neutral axis when the first and second ends are parallel to an angular range in which the first end is arranged among a plurality of angles within the angular range relative to the second end. The hinge body may define a receptacle along the articulating section, and an insert may be provided for insertion into the receptacle. The insert can modify the stiffness of the hinge in the angular range and is arranged parallel to the neutral axis.

A hinge has a hinge body forming an articulating section extending between a first end and a second end of the hinge. The articulating section is adapted to bend from a neutral axis when the first and second ends are parallel to an angular range in which the first end is arranged among a plurality of angles within the angular range relative to the second end. The hinge body may define a receptacle along the articulating section, and an insert may be provided for insertion into the receptacle. The insert can modify the stiffness of the hinge in the angular range and is arranged parallel to the neutral axis.

A hinge has a hinge body forming an articulating section extending between a first end and a second end of the hinge. The articulating section is adapted to bend from a neutral axis when the first and second ends are parallel to an angular range in which the first end is arranged among a plurality of angles within the angular range relative to the second end. The hinge body may define a receptacle along the articulating section, and an insert may be provided for insertion into the receptacle. The insert can modify the stiffness of the hinge in the angular range and is arranged parallel to the neutral axis.

A door hinge assembly includes: a door frame defining a frame opening and a jamb at one side of the frame opening, the jamb including two frame corners protruding into the frame opening and a jamb brace connecting the two frame corners across the frame opening, the jamb brace defining two spaced-apart hinge holes therethrough; a door movable to selectively provide access through the frame opening, and an elastic cord connecting the door to the door frame, the cord extending sequentially through a first of the two hinge passages, through a first of two passage openings at the jamb edge, through a first of the two hinge holes, across the jamb brace, through a second of the two hinge holes, through a second of the two passage openings at the jamb edge, and through the second of the two hinge passages.