A hinge for a swinging gate includes a base plate, a hinge base pivotally secured to the base plate and a mounting member connected in spaced apart relation to the hinge base by an elongate bolt. A gate-engaging member is secured to the mounting member so that pivoting of the hinge base effects conjoint pivoting of the mounting member, the gate-engaging member and a gate that it engages. An upstanding post has a pair of laterally spaced apart T-shaped slots that extend along its height. A bolt disposed within a T-shaped slot is disposed horizontally and cannot rotate. The bolts housed in a T-shaped slot screw-threadedly engage apertures formed in the corners of the base plate to secure the base plate to the upstanding post. In a second embodiment, a cantilever gate supported by a trolley assembly is secured in cantilever relation to at least one upstanding post.

An access control device for persons designed as a turnstile (1) or a device for counting persons designed as a turnstile (1) is proposed which comprises a housing (2) in which at least one drive means is arranged and which comprises two barrier arms (3, 4) which can be driven by at least one drive, which can be driven and controlled independently of one another and at the same speed or at a different speed.

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 fence system with a gate assembly mounted in a gap between first and second fence portions of the fence system. A hinge may be used to mount the gate assembly, where the hinge has a clamp fixed to a support with substantially the same cross-section, and the support is fixed to a first member of the hinge. A second member of the hinge can be mounted to the gate assembly with the first and second members being rotatably fixed together, thereby allowing rotation of the gate assembly between open, closed, and various other positions. A latch actuator can selectively secure and release a latch retainer thereby selectively allowing the gate to rotate to the various positions. A handle can be positioned proximate the latch actuator to allow gripping of the handle and manipulating the actuator with one hand, thereby releasing the retainer.

A design for a universal telescoping swing gate can be sized to obscure a wide range of openings while accommodating a multitude of installation options to make the gate versatile under many conditions. The swing gate can have a frame with a pivot member rotatable about a mounting seat between an open configuration and a closed configuration. The frame can have first and second telescoping members adjustable along an extension axis between a collapsed state and a fully extended state for changing the frame length so the gate can be quickly furnished to different sized openings. The gate can be spring loaded to bias the frame to a nominally closed position to reduce the chance for human error among workers. The gate can also be sized to have the structural rigidity to comply with OSHA requirements for handrails and guardrails around a walking-working surface.

A fence system with a gate assembly mounted in a gap between first and second fence portions of the fence system. The gate assembly can be mounted directly to a post of the first or second fence portions without being mounted to pickets or backer rails of the fence portions. A hinge may be used to mount the gate assembly, where the hinge has a clamp fixed to a support with substantially the same cross-section, and the support is fixed to a first member of the hinge. A second member of the hinge can be mounted to the gate assembly with the first and second members being rotatably fixed together, thereby allowing rotation of the gate assembly between open, closed, and various other positions.

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.

A hinge device includes a fixed element, a movable element and a slider housed in a working chamber and coupled to a pivot, so that a rotation of the movable element corresponds to the sliding of the slider. The working chamber includes an end cap and a working fluid and is divided into first and second variable volume compartment by a plunger member of the slider. A hydraulic circuit includes a first duct passing through an end cap that is in fluid communication with the first and second compartments and has an elongated tubular wall extending within the working chamber, and the interspace between the working chamber and the elongated tubular wall. The plunger member is tightly inserted in the elongated tubular wall, which includes a first peripheral conduit having a first and a second port in fluid communication with the first and respectively second first compartment through the first duct.

A passage control device having a corridor (1) and at least one pedestrian barrier (3), which, by the use of at least one blocking element (5) which is arranged in the region of the corridor (1) and can be moved between a blocking position and a passage position, releases or blocks the corridor (1) for a passage. Lateral boundaries (2) are arranged right and left of the corridor (1). The lateral boundaries (2) have a module rail (6) that is close to the ground and is provided with receptacles for functional elements and/or functional modules of the access control device, more particularly with specifically adapted receptacles for functional elements and/or functional modules of the access control device, preferably in a predefined grid.

A gate comprises a spring-loaded hinge arrangement defining a rotational axis. A gate structure having a first support arm connected to a first end of the hinge arrangement is also provided. The gate structure is rotatable about the rotational axis. A spring-loaded hinge arrangement includes an outer hinge tube fixedly connectable to an adjacent structure and an inner hinge tube received in the outer hinge tube. The inner hinge tube has a first portion and a second portion movable with respect to each other, the second portion of the inner hinge tube being fixed with respect to the outer hinge tube and the first portion of the inner hinge tube being fixed with respect to the support arm.