Abstract: Among other things, a system receives data corresponding to an operating state of a software application. A system identifies, based on the operating state of the software application, data representing a corresponding grid. The system accesses the data representing the grid. The grid comprises a plurality of cells overlaying a spatial region of a window of the application. The grid relates a human-machine interaction associated with a cell of the plurality of cells to a human-machine interaction technique native to the computer system on a spatial sub-region overlaid by the cell. The system receives a human-machine interaction associated with a cell. The human-machine interaction originates from a human-machine interaction technique that is not native to the computer system. The system performs an action in the software application, the action associated with a human-machine interaction technique native to the computer system on the spatial sub-region overlaid by the cell.

Abstract: A screening machine of the type used to separate or classify mixtures of solid particles of different sizes includes a fixed base and a perforate screen deck mounted for movement relative to the base during a screening operation. Leaf springs connect the tail end of the screen deck to the fixed base so that the leaf springs support the tail end of screen deck for movement relative to the base. The leaf springs are oriented horizontally to avoid introducing vertical movement to the screen deck as it moves to and from the head and tail ends. The leaf springs are offset or deflected when the machine is at rest or in the neutral mid-point of its stroke. This arrangement advantageously utilizes the bias of the leaf springs to accelerate, assist or enhance movement of the screen deck during portions of its stroke and likewise to decelerate, hinder or retard the movement during other portions of its stroke. With an appropriate offset, an increase in the effectiveness of the screening process (i.e.

Abstract: A screening machine of the type used to separate or classify mixtures of solid particles of different sizes includes a fixed base and a perforate screen deck mounted for movement relative to the base during a screening operation. Leaf springs connect the tail end of the screen deck to the fixed base so that the leaf springs support the tail end of screen deck for movement relative to the base. The leaf springs are oriented horizontally to avoid introducing vertical movement to the screen deck as it moves to and from the head and tail ends. The leaf springs are offset or deflected when the machine is at rest or in the neutral mid-point of its stroke. This arrangement advantageously utilizes the bias of the leaf springs to accelerate, assist or enhance movement of the screen deck during portions of its stroke and likewise to decelerate, hinder or retard the movement during other portions of its stroke. With an appropriate offset, an increase in the effectiveness of the screening process (i.e.