A gate apparatus includes a structure such as a post and a gate hinge bolt disposed on the structure. The gate hinge bolt includes a threaded shaft inserted into the structure and a mounting boss extending perpendicularly from the threaded shaft, wherein the mounting boss is spaced away from the structure by a mounting boss distance. A gate having a gate hinge barrel is positioned on the mounting boss, and an exposed portion of the mounting boss protrudes from the gate hinge barrel. An anti-rotation bracket is disposed between the structure and the exposed portion of the mounting boss to prevent rotation of the gate hinge bolt relative to the structure when the gate is opened or closed.

A cooling device contains a body which has a lower wall, an upper wall, lateral walls and a rear wall. A door is connected to the body by hinges, a support frame provided at a device front side of the body which is close to the door and where the door is connected by the hinges. The support frame contains a hinge box embodiment which has mutual vertical profile elements, an upper hinge box provided at a device upper side where the upper hinge is connected, and a couple of lower hinge boxes provided at a device lower side for the lower hinge and where a lower hinge recess exists in each one in a manner for accommodating the lower hinge and provided in a distanced manner to each other in a width direction. The hinge box embodiment has a lower connection bracket for seating a lower panel.

A cooling device contains a body which has a lower wall, an upper wall, lateral walls and a rear wall. A door is connected to the body by hinges, a support frame provided at a device front side of the body which is close to the door and where the door is connected by the hinges. The support frame contains a hinge box embodiment which has mutual vertical profile elements, an upper hinge box provided at a device upper side where the upper hinge is connected, and a couple of lower hinge boxes provided at a device lower side for the lower hinge and where a lower hinge recess exists in each one in a manner for accommodating the lower hinge and provided in a distanced manner to each other in a width direction. The hinge box embodiment has a lower connection bracket for seating a lower panel.

A representative hatch system can include a base portion surrounding an opening, a hatch portion movable relative to the base portion between a closed configuration and an open configuration, and a movement mechanism positioned to move the hatch portion relative to the base portion between the closed and open configurations. The movement mechanism can include four arms pivotably attached to the hatch portion and the base portion via four pivot axes. When the hatch portion is in the closed configuration, the axes can be coplanar. The axes can be spaced apart from a sealing plane between the hatch portion and the base portion. The arms can traverse a periphery of the hatch portion. A representative aerospace system can include a hatch system supported in a wall portion of an aerospace vehicle. The movement mechanism can keep the sealing surface of the hatch facing away from an interior of the vehicle.

A mechanical programming system for a door has at least one track and at least two links. The track is formed in an arm coupling the door to a door opening in a body. The links are pivotably connected in series between an arm-body interface and an arm-door interface, and transmit rotational motion of the arm about an arm-body hinge axis to the door for rotation about an arm-door hinge axis. At least one link is coupled to the track via a track engaging element. The track has a directional path shape that causes an orientation of at least one link to change as the track engaging element slides along the track in a manner maintaining the door parallel to the door opening during an opening sequence of translating the door from a closed position to an open position while allowing non-parallel orientations of the door during the opening sequence.

A mechanical programming system for a door has at least one track and at least two links. The track is formed in an arm coupling the door to a door opening in a body. The links are pivotably connected in series between an arm-body interface and an arm-door interface, and transmit rotational motion of the arm about an arm-body hinge axis to the door for rotation about an arm-door hinge axis. At least one link is coupled to the track via a track engaging element. The track has a directional path shape that causes an orientation of at least one link to change as the track engaging element slides along the track in a manner maintaining the door parallel to the door opening during an opening sequence of translating the door from a closed position to an open position while allowing non-parallel orientations of the door during the opening sequence.