Abstract: A method for modifying a surface to a desired contour by pressing a flexible molding plate, having holes for releasing trapped fluids and excess molding compound, is pressed on a molding compound by a plurality of ordered pressure points which are set to define a shaped plane corresponding to a desired contour. The pressure points are adjustably included in a support frame, or are provided by shaped rollers. Compound extruded through the holes by the operation is removed from the plate which is then removed. Nubs resulting from excess molding compound in the holes are removed by sanding or other finishing means.

Abstract: A continuous band/trim sealing apparatus for poly bags incorporates an adjustable leveling platform to which support of the flaccid film laminae at open top portions of the bags is directly transferred as ongoing conveying of the bags moves these portions off the supporting surface of a side wing of the apparatus and which guides these portions downstream to the nip of a twin-belt gripping conveyor at the entrance of a band sealing and trimming machine of the apparatus in condition for consistently obtaining flawless band and trim seals.

Abstract: A field sport providing an outer boundary defining the playing area and consisting of a wall, fixed or portable, and an inner boundary defining an inner playing field in predetermined space relation from the outer boundary and in which the field the players must remain during play, the distance between the outer and inner boundaries being sufficient to prevent the possibility of contact between the wall and the players. A player passes a playing object (e.g. ball, puck, etc.) by projecting it against the wall to rebound back onto the playing field while the player remains in the field. Goals at either end of the playing area are provided. Goal keepers must remain between the inner and outer boundaries at either end of the playing area.

Abstract: In a disposable bag (10) for freezing ice lumps (15), the bonding areas (17) dividing the bag into compartments (16) are relatively weak, at least at temperatures below freezing point. With this arrangement, the ice lumps (15) can be freed by stretching and/or "massaging" the bag (10), so that the dividing bonding areas (17) are disrupted and the bag changed into one without compartments. The ice lumps (15) may then be removed singly or en masse from the bag (10).

Abstract: An electron beam line evaporator for coating heat-sensitive strips or substrates includes a magnetic trap overlying an evaporation crucible to prevent unpermissible heating and static electrification by back-scattered electrons, complemented with means to influence the injection angle of a dynamically deflected electron beam in such a manner that the beam enters the horizontal magnetic field of the trap at the same angle in each deflection phase independent of stray fields. Such means are arranged inside a gap of a pole shoe necessary for the horizontal magnetic field used by the trap and are operative to generate a vertical magnetic field variable in time and locally alongside the pole shoe.

Abstract: A hand-powered vacuum abrading apparatus having a housing within which a partial vacuum is established, the bottom of the housing comprising an abrading work surface, including a plurality of downward facing openings for receiving air and abraded particles from the surface being abraded into the housing, the abrading surface including abrading elements which extend below a substantial portion of the openings, the apparatus including a grip for hand pressing it against and moving it across the work surface.

Abstract: A method of improving egg production in poultry by irradiating poultry with energy levels, the first one of which is within a wavelength band of 600 to 670 nanometers and is delivered at a rate of at least 10.sup.13 quanta/second/cm.sup.2, and, in the case where this first radiation is less than 10.sup.13 quanta/second/cm.sup.2, at least 75% of the total delivered energy is within the first wavelength band. The second radiation energy level is within a wavelength band of 400 to 600 nanometers and is delivered at a rate of at least 10.sup.14 quanta/second/cm.sup.2, and, in the case where this second radiation is less than 10.sup.14 quanta/second/cm.sup.2, at least 80% of the total delivered energy is within the wavelength band of 400-600 nanometers. The invention also includes a control of the time during which the irradiation is delivered.

Abstract: A transmission in which gear segments are cammed to mesh with a circumferential gear and to transmit power from a centered shaft through arcs of power determined by the position of segments relative to the shaft. The segments automatically adjust the radii from shaft to segment in reaction to the torque transmitted from the shaft.

Abstract: A zippered pocket for an athletic shoe is formed as a pipe-shaped layer of material having an opening for receiving small personal items such as keys, rolled or folded currency and the like. A cloth upon which the zipper is formed is stitched upon assembly intermediate the pipe-shaped layer of material and the liner material of the shoe quarter and, defines the upper edge of the bowls along its upper edge, stitched intermediate the eyestay and an upper lateral extent of the quarter. The vamp of the shoe is provided with a cover abutting an upwardly extending forward edge of the bowl. Stops are provided at the ends of the zipper. One such is defined by a narrow upwardly extending portion of the pipe bowl intermediate the termination of the zippered portion and the rear edge of the bowl. The other zipper termination is adjacent that upwardly extending portion of the vamp cover abutting the upward curving forward edge of the bowl.

Abstract: Apparatus for burning material such as fuel, waste material and the like, which when burned produces gases within which pollutants are entrained and for cleaning the gases. The apparatus comprises at least two combustion chambers, comprising an upper chamber and a lower chamber, the chambers being in vertical and lateral stepped adjacency; the lower chamber comprising a grate upon which material is to be burned disposed at a predetermined level; the upper chamber comprising a grate upon which material is to be burned, disposed at a level above the lower chamber grate.

Abstract: A high level, staircase type of quasi-analog reconstruction of an analog input signal, such as an audio signal, initially involves a conventional derivation of a PCM signal from the analog input signal. The binary bits of each PCM codeword are considered as being C in number, of which an A number are major bits and a B number are minor bits. The A number of bits are converted to (2.sup.A -1) discrete decimal data bits, each of which controls the switching to and from a series voltage summation line of a discrete voltage V.sub.c, where ##EQU1## and V.sub.max is substantially the peak kilovolt amplitude to be provided in the reconstructed signal. Individual ones of the B bits directly control the individual switching to and from the summation line of discrete voltages of unequal magnitudes declining in one-half voltage increments from Vc/2 to Vc/2.sup.B.

Abstract: A wafer-like body of electrical insulating material having three prong-receiving apertures therethrough configured and disposed to receive the two power line prongs and the ground prong of a standard three-prong electrical plug. Embedded within the wafer-like body is a contact device of resilient electrically conductive material, part of which is exposed in the ground prong aperture so as to yieldably interfere with the ground prong and make sustained electrical contact therewith when the prongs of the plug, which are insulated from one another, are passed through their respective receiving apertures enroute to being inserted into corresponding sockets of a grounded power outlet. A connection can thereby be made from the outlet ground to the contact device via the ground prong of the plug.

Abstract: A method of controlling a roving frame to produce good quality results with fewer procedural interruptions and without knowing precise parameters of the textile material being processed. To this end, optimum roving tension during the laying down of each roving layer on a bobbin is successively determined from nominal values for bobbin rotational speed based on only a one-time estimate of material parameters.

Abstract: A method for disinfecting a dental impression. The impression is exposed to a germicidally effective amount of ultraviolet light within a drawer in a box-like apparatus. The interior of the housing is mirrored, and supports are provided for holding the dental impression above a flat horizontal mirrored surface within the drawer as the drawer is moved inwardly and outwardly of the housing. The ultraviolet light is provided within the drawer when the drawer is closed, so that at least a portion of the ultraviolet light is reflected off of the horizontal mirrored surface and against the bottom of the dental impression.

Abstract: Spring suspensions for the sprung mass of railway cars are disclosed and which provide torque arm support of both empty and loaded cars and control of axle movement, as in curving by hinging the outer ends of radial torque arms in support of the sprung mass above the vertical axes of the axles of the railway car trucks in which the inner ends of the torque arms are integral with hubs of torque reactive, loaded car spring elements mounted on the journal boxes and in which the hubs are concentric with the axles. In a construction where the loaded car spring elements are mounted on a cross bolster between a pair of axles at the ends of high productivity cars, axes of the spring elements are positioned above the axes of the axles and the outer ends of the torque arms are connected to the journal boxes. In either construction, empty car spring elements are disclosed which are interposed between the sprung mass and the car axles and which are hinged to the ends of torque arms of the loaded car spring elements.