摘要:
An assembly of covers for a roadway device has a first cover having a first linking side and a first plate-that extends along a first plane of a plate and which includes an upper surface, and second cover having a second linking side that is adjacent to the first linking side and a second plate that extends along a second plane of a plate and which includes an upper surface, wherein the assembly of the covers includes the linking part that connect the first cover to the second cover along the first and second linking sides; wherein the linking part include the hinge that define an axis of a hinging between the first cover and the second cover along the first and second linking sides. The assembly of covers is applicable to access manholes for accessing telecommunications installations or facilities.
摘要:
In one embodiment, an electronically controlled hatch system for safe ingress, egress, hazard detection, and methods thereof are provided to reduce or eliminate hazards to personnel, including protection of people above and below a scuttle hatch, access port, skylight or elevated deck. Said hatch system reduces the risk of falls while ascending or descending a ladder through an access port. In certain embodiments, severe weather, hazard, security, and other safety information are detected and transmitted to a central control unit for processing and regulating the opening and closing of a hatch covering the access port and/or raising and lowering a safety railing system based on said information and/or user input. Said hatch system may include an actuator and guides for automatically locking/unlocking and opening/closing a hatch, an actuator and guides for automatically raising/lowering a railing system, safety monitoring detectors/apparatuses, and a centralized controller.
摘要:
In one embodiment, an electronically controlled hatch system for safe ingress, egress, hazard detection, and methods thereof are provided to reduce or eliminate hazards to personnel, including protection of people above and below a scuttle hatch, access port, skylight or elevated deck. Said hatch system reduces the risk of falls while ascending or descending a ladder through an access port. In certain embodiments, severe weather, hazard, security, and other safety information are detected and transmitted to a central control unit for processing and regulating the opening and closing of a hatch covering the access port and/or raising and lowering a safety railing system based on said information and/or user input. Said hatch system may include an actuator and guides for automatically locking/unlocking and opening/closing a hatch, an actuator and guides for automatically raising/lowering a railing system, hazard, security, lighting, and other safety monitoring detectors/apparatuses, and a centralized controller.
摘要:
A manhole cover assembly includes a frame that includes a central opening and a safety stop portion, and a cover hingedly attached to the frame such that the cover is pivotable between a closed position covering the central opening and an open position providing access to the central opening. A safety device is connected to the frame and the cover for locking the cover in the open position. Movement of the cover to the open position automatically moves the safety device to a locked position in which said safety device engages the safety stop portion and prevents movement of the cover to the closed position. When the cover is open, the safety device is manually movable between the locked position and an unlocked position in which the safety device is disengaged from the safety stop and permits movement of the cover to the closed position.
摘要:
The present fastener (36) for street ironwork includes a fastening or locking element (56). The fastener (36) includes a retaining foot (60) suitable for removably connecting the fastener (36) to a member of the street ironwork, via a receiving cavity (40) made in the member of the street ironwork by element of a shape-matching connection. The invention further relates to the use in attaching jacks to man hole covers.
摘要:
A device for closing a frame, which has a panel mounted removably on and articulated on the frame includes a hook that has, at an end part, a heel that can stop against a surface of the articulation edge of the frame to immobilize the panel in a secure open upright position, generally perpendicular to the frame. The invention can be applied to roads.
摘要:
In one embodiment, an electronically controlled hatch system for safe ingress, egress, hazard detection, and methods thereof are provided to reduce or eliminate hazards to personnel, including protection of people above and below a scuttle hatch, access port, skylight or elevated deck. Said hatch system reduces the risk of falls while ascending or descending a ladder through an access port. In certain embodiments, severe weather, hazard, security, and other safety information are detected and transmitted to a central control unit for processing and regulating the opening and closing of a hatch covering the access port and/or raising and lowering a safety railing system based on said information and/or user input. Said hatch system may include an actuator and guides for automatically locking/unlocking and opening/closing a hatch, an actuator and guides for automatically raising/lowering a railing system, hazard, security, lighting, and other safety monitoring detectors/apparatuses, and a centralized controller.
摘要:
A device for closing an opening, particularly a man hole. The device includes a frame and a cover articulated to the frame around a first axis by a hinge. The device also includes a locking mechanism having a locked configuration, whereby the cover is held open in a first position, and an unlocked configuration, whereby the cover is disposed in a second position in which the cover can be pivoted around the first axis. The hinge is designed such that, while resting on the frame, the cover can pivot around a second horizontal axis. Moreover, the cover is pivoted around the second axis to move between the two positions. The device is suitable, e.g., for cast iron man holes.
摘要:
A joint suitable for construction castings having a frame and a lid or cover, such as manholes, grates, trench drains, hatches and the like, and construction castings incorporating the same. No tools are necessary to separate the joint. An enlarged head located on a cover fits into a socket located on a frame or adjacent lid. To separate the head from the socket, the lid is lifted to a substantially vertical position and turned about ninety degrees. The lid can then be lifted away from the socket. When the joint is used in manhole or hatch assemblies, a latch may be used to hold the cover open and the cover may be opened and closed with a lever.
摘要:
An aircraft servicing pit is provided that has a pit lid set within a supporting frame and hinged for rotation relative to a pit access opening. However, the pit lid is also completely detachable from the surrounding frame once it opened. The pit lid support has a flat deck surface with an access opening surrounded by a supporting rim located beneath the deck surface. A hinge pocket is defined in the structure of the pit lid support. A pair of hinge axle end slots are formed on the opposite sides of the pit lid support frame and are inclined upwardly and outwardly. The pit lid has a hinge leaf with a pair of hinge axle ends projecting transversely therefrom in opposite directions. The hinge axle ends engage the hinge axle end slots and are entrapped therein when the pit lid is closed. When the pit lid is open to the point where the pit lid is in generally coplanar relationship relative to the hinge axle end slots, the hinge axle ends can be easily withdrawn from the slots and the pit lid removed completely from its supporting frame. Complete detachment of the pit lid in this fashion eliminates obstructions otherwise presented by the pit lid and its hinge in drawing cables and hoses out of the pit enclosure.