Abstract: An example method includes (a) generating a request to obtain log data descriptive of operation of an autonomous vehicle control system in a subject scenario, the log data indexed by an indexing parameter; (b) submitting the request to a log repository service, the log repository service configured to receive the request and serve, responsive to the request, log metadata; (c) loading, based on the log metadata and an index value of the indexing parameter, a log data sketch associated with the index value; and (d) loading, based on the log metadata and the index value, and responsive to an inspection indicator, detailed log data associated with the index value.

Abstract: A self-tracking roller for centering conveyor belts and web materials on conveyor systems having a guide wheel at each end of a centrally pivoting shaft for contacting the belt or web. The self-tracking roller will pivot in the direction of travel of the belt or web along the side contacted and redirect the belt or web to a central or neutral position by the pivoting action of the roller.

Abstract: A web tracking and repositioning apparatus having at least one pivoting conveyor roll pivotable and rotatably supported at its center about a bearing assembly through which extends a longitudinal fixed shaft with said bearing assembly connecting to a coaxially mounted sleeve positioned at its weighted center about the bearing assembly, extending outward toward fixed support members, and interconnected to a pair of guide members or cams mounted about the fixed shaft, whereby cooperative engagement of the pivoting cylindrical sleeve and the guide members eccentrically mounted about the shaft at the opposite ends of the sleeve which cooperatively engage end cap members via a pin and an elongated slot causes a web of material conveyed over the conveyor roll to be steered centrally following misalignment due to uneven tension in the conveyed web of material.

Abstract: A self-tracking roller for centering conveyor belts and web materials on conveyor systems having a guide wheel at each end of a centrally pivoting shaft for contacting the belt or web, pivoting in the direction of travel of the belt or web along the side contacted, and redirecting the belt or web to a central or neutral position by the pivoting action of the roller.

Abstract: A web tracking and repositioning apparatus having at least one pivoting conveyor roll pivotable and rotatably supported at its center about a bearing assembly through which extends a longitudinal fixed shaft with said bearing assembly connecting to the conveyor roll positioned at its weighted center about the bearing assembly and extending outward toward fixed support members and extending through a pair of oppositely exposed guide blocks pivotally mounted to the support members whereby cooperative engagement of the pivoting conveyor roll and the guide blocks coaxially mounted at the opposite ends of the conveyor roll a web of material conveyed over the conveyor roll is steered centrally following misalignment due to uneven tension in the conveyed web of material.

Abstract: A liquid gas grill providing small bubbles of gas in a nonflammable liquid bath, such as a water bath, beneath the surface of the water, wherein the small bubbles of gas are ignited on the surface of the water creating a flame for heating and cooking food articles suspended thereabove.

Abstract: An apparatus and method for unilaterally-controlled, time-insensitive recovery of disconnected data links provides for user-transparent recovery, without requiring inputs from a user or other intervention. Data and executable operations may be preserved, as re-booting is not required. Optionally, opportunity for user intervention may be provided, at a user's request. Recovery may occur automatically by use of expert knowledge applied to reported system errors from the disconnected communication link. An apparatus may rely on a logical device within an actuator or machine of mechanical, pneumatic, hydraulic, electrical or electronic character. A task to be reported to an actuator as successful or failed, may be internal to the actuator, internal to the logical device, or external to both. Data structures stored in a memory device, may implement the invention readily from within an application running on a processor in a computer.