Abstract: A tool caddy and stool resembling a hollow truncated pyramid that has a rectangular base which is longer than it is wide and a platform top constituting the truncated end. The platform is supported from columns extending from the base and inclined similarly to the sides of a pyramid. The base has a floor which is compartmented for storing items. A shelf or reel for storing an extension cord is removably supported in the caddy. The platform has holes for passing a hand through for carrying the caddy.

Abstract: Pairs of parallel rods spaced from each other along the path of miter saw movement for the saw to pass between them. At least one roller is mounted on each rod in a pair. The rollers have a plurality of axially spaced apart annular grooves that are occupied by resilient or elastomeric rings such that corresponding rings on one roller are in tangential contact, or nearly so, with the rings on the other. The rings yield when a saw blade is inserted between them to maintain opposing forces on the sides of the blade for constraining it to move in a single plane.

Abstract: An automatic x-ray exposure time control wherein compensation curves representative of plots and reference signal voltages versus integrated x-ray dose signals can be reconfigured to account for the variable effects on x-ray film density resulting from the specific image receptor, collimator field area, x-ray intensity sensor and density factor used in any x-ray exposure technique over a range of operator-selected x-ray tube kilovoltage (kV) and current (mA). Data for a relatively small number of basic compensation curves are obtained and stored in ROMs. These curves are plots of exposure times versus integrated x-ray dose signals which resulted in producing a constant predetermined and desired film density for whatever amount of x-ray attenuating material is in the x-ray beam. Each basic curve is obtained with the x-ray tube operating at a particular kV and mA.

Abstract: A sanitary positive displacement pump having increased internal clearances to allow increased operating pressures without detrimental wear while maintaining high volumetric efficiency. The invention includes rigid and accurate positioning of the liquid impellers to the shafts while maintaining ease of disassembly and assembly. The impellers are secured on the shafts by cooperating frusto-conical surfaces on each of a pair of nuts. A rubber retainer ring enables manual release of the nuts but prevents inadvertent spinoff.

Abstract: A system for writing cursors on a raster scanned television screen that uses the microprocessor in a display controller to produce blocks of data defining the parameters of vectors that compose the cursor. The blocks are put in a first-in first-out memory during a vertical blanking inerval or during active picture time. Each block specifies where writing of a cursor segment is to start and stop on a horizontal scan line and it also specifies a repeat count that indicates the number of lines on which the segment is to be written. Each block contains a delta value to indicate how much, if any each segment is to be displaced left or right from line to line so vertical and angulated vertical vectors can be produced. The blocks are read out of the memory consecutively by a circuit that converts the segment start and stop data to pixel counts. Pixel counters determine the writing start and stop points.

Abstract: X-ray apparatus for tomography and other procedures. For tomography, a column is translated longitudinally parallel to the patient supporting table top. An x-ray tube is supported on the column above the table top for angulating about a laterally extending axis at a constant elevation on the column. A bucky carriage for containing a film is mounted under the top for moving longitudinally. A fulcrum arm is pivotally connected at one end directly to the bucky carriage for pivoting on a laterally extending axis lying on the film plane. The other or upper end of the arm is connected to the x-ray tube for angulating it so the central ray of the x-ray beam is always directed to the center of the film during column translation. The upper end of the fulcrum arm is slidable relative to the x-ray tube angulation axis.

Abstract: A method of controlling a digital video processor in a digital fluorography system wherein the electronic components of the processor are variously configured to perform math functions and manipulations on digital image data obtained in connection with carrying out x-ray examination procedures and the images are displayed on a television monitor or recorded. A system controller sends a complete recipe for a procedure to the memory of a microprocessor based CPU that controls the video processor. The latter CPU interprets the instructions and effects configurations and reconfigurations in the data paths of the video processor during television vertical blanking intervals.

Abstract: A bottle labeling machine has a turret rotating on a fixed axle. The turret has circumferentially spaced apart curved glue pallets mounted on individual pallet shafts supported in oscillatable drive members, respectively, which drive the shafts. The pallets orbit and oscillate to pick up glue from a roller, pick up a label next and deposit the label on a cylinder from which it is transferred eventually to a bottle. The drive members are externally splined axially and are each surrounded by an internally axially splined clutch member. The drive member has a smooth bore to permit it to rotate on a shaft that is driven in oscillating fashion as the turret rotates. The oscillating shaft has a transversely extending element on which there are axially projecting teeth that engage in corresponding recesses in the clutch member to effect oscillation of the pallet shaft.

Abstract: Apparatus for applying a gamma correction to digital CT numbers at a selected level and within a window. A memory is loaded sequentially with the gamma correction lookup table. At the start a counter generates a sequence of addresses, in response to clock pulses. These are addresses to another memory. Simultaneously, a variable address generator addresses the gamma lookup table memory to effect transfer of the gamma correction data to the other memory (window-gamma lookup table) at locations that are represented by the ratio of the locations in the gamma lookup table to the address in the window-gamma table. To read out and produce an image, the window black value is subtracted from the stored CT numbers in sequence. The resulting differences constitute addresses to the window-gamma lookup table whose output is then the gamma corrected values for CT numbers in the window. This digitized data is converted to analog video signals for driving a television monitor that displays the image.