Abstract: Systems and methods for navigation of a vehicle may carry out one or more operations including, but not limited to: obtaining coordinates of a vector connecting two points in space using carrier phase measurements from global navigation system satellites (GNSS); setting the vector as an intended path of a vehicle; storing carrier phase signals from a GNSS receiver received at a first position of the vehicle; receiving carrier phase signals from a GNSS receiver at a second position of the vehicle; and determining a position of the vehicle relative to the intended path from one or more carrier phase signals received at the second position and one or more stored carrier phase signals received at the first position.

Abstract: Systems and methods for navigation of a vehicle may carry out one or more operations including, but not limited to: obtaining coordinates of a vector connecting two points in space using carrier phase measurements from global navigation system satellites (GNSS); setting the vector as an intended path of a vehicle; storing carrier phase signals from a GNSS receiver received at a first position of the vehicle; receiving carrier phase signals from a GNSS receiver at a second position of the vehicle; and determining a position of the vehicle relative to the intended path from one or more carrier phase signals received at the second position and one or more stored carrier phase signals received at the first position.

Abstract: The portable container includes an open upper bucket portion with a single telescoping support column or leg extending concentrically therebeneath. Four feet extend from the lower end of the column, with one foot having an extendible rod therein. A bail or handle extends from the upper portion of the bucket. The device may be used for the carriage of a number of different goods, but is particularly well suited for holding a supply of baseballs or softballs for pitching practice. The device may be deployed at the pitcher's mound, with the foot extension rod providing additional stability when the device is deployed upon the slope of the mound. The low center of gravity of the device when collapsed allows it to be carried within a motor vehicle or the like without undue risk of tipping or spilling of the contents, even when goods are being stored within the bucket portion.

Abstract: An apparatus is described permitting rapid rehanging of fallen freight bracing bulkheads and trolleys, comprising a movable shaft mounted on the existing trolley tracks, a portable winch for raising detached bulkheads, and a ceiling jack, attachable to said movable shaft, causing the apparatus to be suitable for raising fallen bulkhead trolleys.