Abstract: UGV bridging system includes a first end of a first elongated span of a hinged bridge structure disposed on a deployment support bracket which is secured to a UGV. A second elongated span is hingedly supported at a second end of the first elongated span opposed from the first end. A tension element applies a tension force to the first elongated span at a location intermediate the first and second ends. The tension force secures the first elongated span in a stowed position adjacent the deployment support bracket. A retention element associated with the deployment support bracket prevents the second elongated span from rotating about the hinge axis in response to a spring bias force. Deployment involves pivoting the first elongated span and concurrently releasing the second elongated span from the retention element in response to the extending.

Abstract: An isolation system is described for converting original product code into corresponding modified code. The isolation system operates by identifying a subset of original methods to be converted. For each such original method, the isolation system generates a modified part having at least one property with a type-safe delegate type which matches a signature of the original method. Test code, which tests the product code, can then associate a delegate instance to the thus-defined property of the original method. This prompts an execution system to dynamically execute detour code associated with the delegate instance, rather than an instrumentation of the original method, thus avoiding dependency on potentially non-deterministic functionality which would be otherwise invoked by an instrumentation of the original method.

Abstract: A bearing retainer plate for fall restraint equipment made from a single, continuous piece of sheet metal, where the metal is lasered, cut, and/or butterflied to define a plurality of apertures. A bearing, preferably possessing a self-centering characteristic, is inserted into one of the apertures, while an adapter or bracket for an over-travel stop is inserted into another. A foot lock stud is inserted into another aperture defined by the bearing retainer plate and welded into place. The piece of metal may also define apertures configured to receive fasteners for attaching the plate to the fall restraint equipment, such as to a support structure of a gangway.

Abstract: An extended safety cage provides access to a plurality of hatches on the top of a mobile container. The cage is rotatably attached to the end of a gangway, which extends from and is rotatably attached to a platform. The platform carries a pair of braces that extend out in opposite directions and support the cage through spring-loaded lifting arms. The apparatus can include actuators, such as hydraulic or pneumatic actuators, that urge the gangway and cage downward when activated. Secondary braces ensure that the lifting arms and safety cage move in unison.

Abstract: A drawbridge apparatus for reversibly spanning from a first pier to a second pier. The apparatus comprises first and second cantilevered beams, rack and pinion beam drive mechanisms, first and second bascular leaves, first and second hinged leaves, and rack and pinion leaf drive mechanisms. The first and second cantilevered beams are slidably coupled to the first and second piers, respectively. The beams are arranged and configured to project from the first and second bases to a location between the two where the beams make a locking interconnection when the bridge is in its down configuration. The beam drive mechanisms cause the first and second cantilevered beams to slide from and into the first and second bases, respectively. The first and second bascular leaves have first and second counterweight portions and first and second span portions, respectively. The bascular leaves are pivotally coupled to the bases at the intersections of the counterweight portions with the span portions.

Abstract: The swing bridge for the spanning of watercourses, defined by a first bank and by a second bank on which there are tracts of road surface, is constituted by a first mobile plane restable, at its first end on the said first bank and is supported, at its other end in proximity to the said second bank with possibility of free rotation about its vertical axis passing through its own longitudinal axis of symmetry and defined by a vertical hinge pivot; the second end of the said mobile plane being hinged about its horizontal transversal axis to the said hinge pivot and having hinged to itself a connecting plane of the mobile plane with the second bank; between the mobile plane and the connecting plane there being envisaged movement organs of the said connecting plane and the mobile plane bearing inferiorly at least one floating hollow body with adjustable trim which raises or lowers the said first end and nautical propulsion organs which move the said mobile plane in rotation about the said hinge pivot after the sa

Abstract: A personnel bridge for connecting a stationary offshore working platform 1 to a floating housing platform 2. A first span 3 is vertically pivoted at 5 to the platform 1 on one end, and vertically pivoted at 6 to the outer end of a second span 4 whose inner end is mounted to the platform 2 by a ball joint 8. The outer ends of the spans 3, 4 are also connected through a horizontal pivot axis 7, whereby movements between the platforms 1, 2 in three mutually orthogonal directions may be accommodated. The spans may be supported from a tower 10 by a fixed cable 9 pivotable at one end about an axis 11 aligned with the vertical axis 5, and by a winch controlled cable 12.