Abstract: An apparatus, program product, user interface control and method indicate, on a data set user interface control, the size of a subset of data relative to an overall data set accessible by the control. The data set user interface control may be implemented in much the same manner as a scroll bar, including a slider control that can be manipulated along a scroll region of the scroll bar to adjust the parameters of the subset of data accessible through the window. Further, the length of the slider may be set relative to that of the scroll region to represent the size of the current subset relative to the overall data set. The length of the slider may also be manipulated by a user to adjust the size of the current subset. While a data set user interface control may be implemented in a wide variety of additional environments, one particularly suitable use is in a client-server environment where a data set is retrieved in the form of subsets from an external information source accessible via a server computer.

Abstract: A method and apparatus for inline scrolling of related objects in a computer desktop environment. This scrolling is accomplished by utilizing a pointing device to activate an indicator actually imbedded into the relational information for the data being presented. The inline scrolling is designed to reduce the amount of space required on a display device to convey information to the user.

Abstract: A system for illuminating a wheel on a vehicle, the wheel having a concave area adapted for mounting around a wheel hub attached to stationary structure on the vehicle, the vehicle having an electrical power source. The system includes a contact ring that includes a circular backing ring of an electrically insulating material and a layer of electrically conductive material over the backing ring. The contact ring is flexibly supported from the concave area of the wheel where a contact brush mounted from the stationary structure of the vehicle makes contact with the layer of electrically conductive material on the contact ring. At least one electrical light emitting device is electrically connected to the layer of electrically conductive material on the contact ring, so that electrical power from the power source reaches the light emitting device through the contact brush and through the contact ring.

Abstract: A graphical selection marker provides a visual indication of selected items in a list and their relative position in the display window. The graphical selection marker is suitably provided on a scroll bar in each location on the scroll bar that represents a selected item in the list. In this manner, the graphical selection marker indicates a selected item in the list, even if the selected item is not currently visible in the display window.

Abstract: The present invention provides a method and apparatus for altering the display of an object on a display device in a data processing system. Changes in the attitude of a device within the data processing system are detected relative to a reference plane. The device may be a display device or some other device within the data processing system. The display of the object is altered in response to detecting selected changes in the attitude of the device.

Abstract: A graphical undo/redo manager provides a graphical indication of multiple tasks that were recently performed. A user may undo multiple tasks in one step by selecting a task the user wishes to revert to, and the graphical undo/redo manager then undoes all the commands that were done subsequent to the selected task, taking the computer program to a desired state in only one user operation. In similar fashion, a user may redo multiple tasks in one step by clicking on a selected subsequent task (that was previously undone) that the user wishes to go forward to, and the graphical undo/redo manager then redoes all the commands between the last undo and the selected task, including the selected task. In addition, the graphical undo/redo manager provides for collapsing multiple tasks into a marker, either automatically when certain commands are executed in the computer program or upon command by a user for future reference.

Abstract: The present invention provides a method and system for controlling content on a display of a computer system. The method and system comprises providing at least one control element on the display, moving the at least one control element selectively between a first position and a second position on the window. The method and system further includes the content between the first and second positions. The at least one control element allows the user to "fold" windows of information like a piece of paper, at any location, to hide information that is not of interest to the user.

Abstract: A method and system for assisting a user in constructing a formula in a cell of a spreadsheet operating on a computer system. A function dialog box is displayed that lists various functions that may be selected by the user to be entered into the formula. By selecting a button in the function dialog box, an insert function dialog box is displayed that lists additional functions by category. When the user selects a function, a parameter dialog box associated with the selected function is displayed. Parameters may include cell addresses as well as numerical or other data entered directly by the user. The parameter dialog box displays the formula as it is being constructed. After the parameters have been entered, a result dialog box is displayed that allows the user to select the result cell in which to place the formula.

Abstract: In association with a computer system, a method and system for detecting and correcting errors in a spreadsheet formula. A token is created corresponding to each entry in the formula. As the formula is constructed, each token is added to the top of a formula token stack. When the formula is completed, a parser parses the formula token stack starting at the bottom of the stack and parsing each subsequent token. By examining the tokens in the formula token stack and their relationship to other tokens, the system determines whether an error exists in the formula. If an error is found to exist in the formula, an error class code is assigned to the error corresponding to the type of error. An error corrector rule corresponding to the error class code is applied and identifies a correction for the error. After a correction for the error is identified, the remainder of the formula token stack is parsed to detect and correct any other errors.

Abstract: In a data processing system having a display and an operating system, information is displayed within a first window utilizing information display software. Thereafter, the process detects a second window displayed within the display at a location that obscures a portion of the information displayed in the first window. Utilizing the operating system, the process notifies the information display software that the portion of the information within the first window is obscured by the second window. In response to receiving this information, the information display software displays, in the first window, the portion of the information that had been obscured by the second window, wherein the information in the first window previously obscured by the second window may be viewed in the first window by the data processing system user. Information displayed in the first window may be textual or graphical.

Abstract: A method and system for generating and maintaining property sets is provided. In a preferred embodiment, a property set stream is generated. The stream comprises three parts: a header, a section locator array, and one or more sections. The header contains information for uniquely identifying the property set and for identifying the number of sections within the property set. The section locator array contains a unique identifier for each section and an offset indicating where the section resides within the stream. The third part, the section definitions, contains the information necessary to maintain groups of properties for each section. Each section contains a section header, a property locator array, and an array of property type/value pairs. The section header indicates both the size of the section and the number of properties defined within the section.

Abstract: A method and system for generating and maintaining property sets is provided. In a preferred embodiment, a property set stream is generated. The stream comprises three parts: a header, a section locator array, and one or more sections. The header contains information for uniquely identifying the property set and for identifying the number of sections within the property set. The section locator array contains a unique identifier for each section and an offset indicating where the section resides within the stream. The third part, the section definitions, contains the information necessary to maintain groups of properties for each section. Each section contains a section header, a property locator array, and an array of property type/value pairs. The section header indicates both the size of the section and the number of properties defined within the section.

Abstract: A process for improving the concentration of non-magnetic heavy minerals using a gravity-magnetic type separator, by the addition of a magnetic mineral or phase, such as magnetite, ilmenite, or iron filings, to the feed slurry. The addition of the magnetic material prior to feeding the gravity-magnetic separator results in an increase in the recovery of the non-magnetic heavy minerals in the feed, such as rutile, zircon, gold, tin, tungsten, etc.

Abstract: A gravity-magnetic separator (10) for concentrating magnetic materials (28), particularly iron, is disclosed. The preferred separator is a cast-iron Humphreys spiral retrofitted with powerful rare earth magnets (22) beneath its separating surface (14), the magnets being sufficiently strong to overcome the shielding effect of the cast-iron spiral and induce a magnetic field at the separating surface of about 60 gauss to about 120 gauss. The resulting gravity-magnetic separator enhances the recovery of iron in a commercially significant way.

Abstract: A process for concentrating gold and/or uranium minerals by rendering the nonmagnetic minerals magnetic or weakly magnetic by causing a coating to form on the surfaces of the minerals. The gold and/or uranium are concentrated by use of a gravity-magnetic separator or a suitable high intensity magnetic separator.

Abstract: A gravity-magnetic ore separator for concentrating magnetic or weakly magnetic minerals having a relatively high specific gravity is disclosed. The ore separator utilizes codirectional magnetic and gravitational forces to achieve separation capabilities in excess of that which can be achieved using gravity forces alone. Typically, the gravity-magnetic ore separator is formed by retrofitting a conventional gravity separator such as a spiral, cone, pinched sluice, etc. with magnets so as to enhance the separation capability of the conventional gravitational ore separator. Means are provided to prevent build up of magnetic material on the surface over which the ore flows.

Abstract: A gravity-magnetic ore separator for concentrating magnetic or weakly magnetic minerals having a relatively high specific gravity is disclosed. The ore separator utilizes codirectional magnetic and gravitational forces to achieve separation capabilities in excess of that which can be achieved using gravity forces alone. Typically, the gravity-magnetic ore separator is formed by retrofitting a conventional gravity separator such as a spiral, cone, pinched sluice, etc. with magnets so as to enhance the separation capability of the conventional gravitational ore separator. Means are provided to prevent build up of magnetic material on the surface over which the ore flows.