Abstract: An adaptor for attachment to the end of a rifle allows an individual to f from the rifle a different projectile than originally designed for the rifle, without substantial degredation in overall accuracy and throw distance of the rifle. The adaptor has a rifled cylinder which in the typical application will have progressive twist rifling. The tangential force acting upon the projectile within the progressive twist rifling area has a semi-elliptical shape and an exit value of approximately zero. An adaptor ring and outer shell are preferably employed to mount the rifled cylinder to the rifle and for aligning the adaptor axis and rifling with the rifle barrel axis and rifling.

Abstract: Snapshot data from a projectile traversing a resisting medium are analyzed o determine a lower critical value within the resisting medium where rapid yaw growth begins and a yaw-growth constant governing yaw growth from the lower critical value to an upper critical value. Snapshot data from additional projectiles are similarly analyzed. Curves produced by the solution of a differential equation, including the lower critical value and the yaw-growth constant, are overlaid graphically or analytically to provide an increased data density sufficient to improve substantially the ability to predict the yaw performance of the projectile.

Abstract: A connector assembly such that when a first half of the connector receives a second half, a vent hole is defined therethrough. With the second half disconnected and a third half coupled to the first half, the vent hole is sealed.

Abstract: There is disclosed a safe and arming device for ordnance fuzes including an nterrupter. The interrupter includes a cylindrical body adapted for rotational or axial movement in a housing when subjected to acceleration or other mechanical force in a bomb, missile, or other projectile for which designed. The cylindrical body is provided with a plurality of radially extending orthogonal openings containing detonators, whereby, upon movement of the cylindrical body, the detonators are brought into facing explosive communication with explosive leads for arming the fuze.

Abstract: A sodium Y type faujasite having a high silica/alumina ratio is obtained by lowering the active soda content below the conventionally employed levels. This is done by adding an acid and/or an aluminum salt solution such as an aluminum sulfate solution to the sodium silicate in the zeolite synthesis slurry. Alternatively, the desired alumina and silica starting materials can be supplied in part by using an aluminum salt gelled mother liquor such as an alum gelled mother liquor. This permits the use of less reactants which are high in soda such as sodium silicate and sodium aluminate which in turn reduces the amount of soda present. The addition of these soda removers or the use of low soda reactants permits the production of NaY having a silica/alumina ratio of 5.0 and higher. These Y zeolites have a high degree of crystallinity as measured by an NMR sharpness index defined herein and they have an absence of occluded silica. The final product can be ion exchanged to a low level of Na.sub.

Abstract: A method for sequestering ammonia off-gassing by chemical treatment of certain hazardous wastes prior to solidification of such wastes, the invention involves mixing of magnesium sulfate heptahydrate and phosphoric acid with waste containing ammonia nitrogen to form ammonium magnesium phosphate hexahydrate complex and thus control the release of ammonia vapors during the solidification process and from the cured and solidified waste products of the solidification process. The present method results in the precipitation and complexation of ammonia nitrogen in the waste to effectively isolate the ammonia nitrogen in a substantially water insoluble complex which is incorporated into a solid product disposable within landfill sites after further treatment with solidification reagents in known solidification processes.

Abstract: The invention provides a process and composition of low toxicity for prepng aluminum surfaces for adhesive bonding. According to the invention non-carcinogenic, non-polluting soluble metal salts generally, other than ferric sulfate disclosed in U.S. Pat. No. 4,212,701, when added in an effective amount to sulfuric acid, improve the adhesive bonding to aluminum when the aluminum is treated with such salt-sulfuric acid etchants prior to adhesive bonding.

Abstract: Low (thermal) Vulnerability Ammunition or LOVA is more responsive to the rmal stimulation of the igniter compositions disclosed herein. The igniter compositions of this invention generate oxygen rich flames upon decomposition. Such igniter compositions comprise nitrocellulose, nitroglycerine, potassium perchlorate and ethyl centralite. An agent comprising one or more titanate salts and/or carbon black may optionally be included in such compositions to the extent of about 0.35% w/w. Such compositions can be extruded and utilized in strand form.

Abstract: A glow/corona discharge device for use in detoxifying air at atmospheric ssure. The device includes a generally cylindrical supporting structure with a plurality of self-contained modular discharge units (or power packs) mounted around the surface thereof. Each module contains a flow channel in which the electrical discharge is maintained and through which the air being processed is passed. The modules are designed for ease of inspection and maintenance and include a plurality of ballast resistors each in series with an adjustable cathode pin. The flat anode plate is located on the opposite side of the flow channel from the cathode pins.

Abstract: A ground transporter for air launched missiles. The transporter is constructed by bolting two pairs of "H" beams across a flat-bed trailer. The bolts are applied through holes in the bottom flanges of the "H" beams. A pair of missile handling units are then bolted to each pair of "H" beams. The missile handling units are bolted at each of their ends to the top flanges of the "H" beams. Steel bushings add structural support to the bolt holes through the wooden beams of the trailer bed and hillside washers are used on the bolts through the "H" beams and the side "C" channel rails of the trailer bed.

Abstract: An interference cancelling transmitter is configured which provides electagnetic compatibility (EMC) among different communications apparatus in the same area as well as providing a low probability of intercept (LPI) in a dense communications environment where secure communications is required between users. This is accomplished by means of a communications transmitter coupled to a transmitting antenna configuration comprised of an omnidirectional antenna and a notch antenna having a single deep null over a small angular beamwidth. RF power is fed equally thereto so that the radiated power from each antenna is the same but the phase is mutually inverted (180.degree.) so that a cancellation of the radiated power occurs in all directions of space except over the angular region where the null of the notch antenna is located. The null can be varied in direction and results in a relatively narrow pencil-like radiation pattern being radiated to a predetermined receiver.

Abstract: An integrated display called an iconic display is disclosed, which contains an image of the thermodynamic heat transfer process for a pressurized water nuclear power plant from the heat source (the reactor) to the heat sink (the environment). Shown is a main curve comprising a saturated steam line and a saturated water line, superimposed upon which are symbols indicating such operating data as water level and temperatures, and the status of various pumps and valves. By analyzing the graphic presentation and the relationships between the various symbols, the status of the thermodynamic cycle of the plant can be determined and trends monitored. Real time data inputs can be used, or hypothetical situations can be constructed. Illustrated are two actual undesirable plant conditions from nuclear power mishaps which graphically demonstrate the operation and advance in the art set forth in the invention.

Abstract: In a modified Betatron a low density background plasma is maintained in the vacuum chamber causing image charges in response thereto to form in the chamber wall. These image charges cause the self forces of the electron beam being accelerated in the betatron to be directed inward in the polodial plane thus eliminating injection problems, the diamagnetic to paramagnetic transition, and the l=2 resistive wall instability.

Abstract: A method of making a planar junction field-effect transistor in which a semi-insulating substrate of a III-V semiconductor, particularly InP, is ion implanted by two ions to produce both an n-type region and a p-type region. The gate is further defined by selectively etching through the gate-implant region to the source/drain channel.

Abstract: Incoming radio frequency signals from one or more remote transmitters, that may be changing or "hopping" in frequency, are received at two closely spaced antennas. A pair of Chirp-Z transform processors are respectively coupled to said antennas. The transform processors are operated in synchronism and produce a pair of sampled comb filter output responses, each of which comprises a multiple of frequency "bins" distributed over a given spectrum. The bins are read out of the Chirp-Z processors in a synchronous sequential order, and each bin is represented by a pair of signals in phase quadrature. The phase quadrature signals of corresponding bins are multiplied in a predetermined manner and the products thereof are selectively added and subtracted to provide a predetermined function (tan .PHI.) of the phase difference (.PHI.) between the signals incident on the pair of antennas. This predetermined function is coupled to a processor that calculates a trigonometric function (sin.sup.

Abstract: A portable visual function tester and testing method is described for rapid and accurate measurement of several human vision parameters, including critical fusion frequency, stereopsis, Snellen visual acuity and visual resolution, cyclophoria, eye dominance, and lateral and vertical phoria, which comprises, first and second illuminated visual displays disposed for viewing by respective left and right eyes of a subject along respective parallel first and second optical axes, each display comprising an array of visual display patterns, one pattern of each display comprising a pair disposed for simultaneous viewing by the subject in the measurement of a corresponding vision parameter; the display patterns include an illuminated blinking disk for measurement of critical fusion frequency, a rectangular array of four-dot sets for measurement of stereopsis, an array of Snellen E designs of various sizes and orientations for measurement of visual acuity, and a resolution fan comprising a pattern of a plurality of rad

Abstract: A modified activated sludge system is provided wherein BOD-containing wastewater and recycled sludge are initially admixed under anaerobic conditions in the substantial absence of oxygen or oxidizing agents and subsequently subjected to aeration and clarification. By the disclosed operation the selective production of non-bulking biomass is favored while effective removal of phosphates is obtained. By a further alternative modification, nitrates and nitrites are also removed by interposing an anoxic treating zone between the anaerobic zone and the aerating zone.

Abstract: An improved printed wiring board (PWB) with solder mask coatings is achieved by means of a two layer composite coating. One inner adhesive photopolymer layer is applied to the PWB in the liquid state, displacing air from PWB surface. The outer layer of the composite is dry and is carried on a thin plastic sheet and overlaminated onto the liquid inner layer, without the need for a vacuum laminator. The dry film solder mask so laminated is then exposed through a phototransparency to harden the light struck dry film solder mask and light struck inner layer photopolymer, thereby cojoining the dry film solder mask, inner layer and PWB surface. A solvent washout step removes unexposed dry film solder mask and unexposed inner layer photopolymer. This provides a faster process, requires less equipment, and improves adhesion to metal conductors. The outer layer need not be photoimaged.

Abstract: Method and apparatus for recovering information at a substantially constant rate from a rotatable information storage disc. The information is stored on the disc in a plurality of substantially circular and concentrically arranged information tracks, with a substantially uniform recording density, and it is recovered by controllably rotating the disc, relative to a transducer, at an angular velocity substantially inversely proportional to the radius of the corresponding track. The apparatus includes a coarse speed control potentiometer for producing a measure of the radius of the particular information track from which information is being recovered, and fine speed control means for comparing the relative phase angles of a periodic signal in the recovered information and a periodic reference signal and for producing a fine speed control signal proportional to the phase difference.

Abstract: Digital data formed of binary bits of first and second values occupying consecutive bit cells of predetermined intervals are encoded such that successive binary bits of the first or second values are represented by predetermined separations between succeeding transitions. A first transition is produced at a first reference point in a bit cell when a binary bit of the second value changes over to a binary bit of the first value. When successive binary bits of the first value are sensed, a respective second transition is produced at a second reference point in a bit cell after sensing every 2 or 3 binary bits of the first value.

Abstract: The invention relates to a pocket enclosure for removably holding a resilient recoil pad for attachment to a shoulder portion of a shooting garment, the pocket enclosure comprising a plurality of panels forming a space for removably receiving the recoil pad, and where one of the panels includes an extended flap portion foldable over the recoil pad and into contacting relation with another of said panels, whereby the recoil pad is firmly held against movement within the enclosure.

Abstract: An improved athletic sock particularly intended for soccer incorporates a full leg sock over which is secured another partial sock structure between which the shin guard is nested.

Abstract: A utility garment for load portage in the shape of a vest containing load carrying compartments on the back and front flaps of the vest. The vest closes at the front, and a waist belt attached to back and front flaps through tie down loops holds the loaded vest to the wearer to prevent shifting of loads and upward creeping of the front flaps and to distribute a portion of the read load directly to the wearer's hip region. A stowable water repellent seat protector hangs from the bottom of the back of the pack for the packer to sit upon.

Abstract: A string secured at each end to a marginal edge of a rectangular towel. The string, when drawn upon, pulls on the opposing marginal edges of the towel to form, between the string and the towel, an opening to receive the head and neck of a wearer. VELCRO fasteners, adjacent the side opposed to the marginal edge, are used to secure the towel about the user to thereby form a robe.

Abstract: An earmuff assembly releaseably attached to a headset commonly used with radio and audio playback units in order to protect the user's ears in inclement weather. The assembly includes a muff body formed by a thermal covering, surrounding a core element, and the muff body has a soft front face positionable against the ear. The muff body has a central opening to telescopically receive an earphone to orient the earphone at a location adjacent the ear. The muff body is secured to the headset, for example, by a cover plate defined by a disc covered with fabric that extends over the opening, with the muff body and the cover plate connected together by a mating hook and loop fastening strip. Alternatively, attachment may be by means of an elastic panel. The core element may, if desired, be stiffened by an annular plate.

Abstract: A garment construction having a front panel and a back panel, and in which the back panel has: a seat portion for covering the seat and back, and two leg portions all cut integrally out of a single panel, and the upper edge of the seat portion defines a curved edge, and the lower region of the seat portion defines a lower curved edge extending partially into the seat region, and in which the front panel has an abdomen portion and two leg portions, all cut integrally out of a single panel, and the upper edge of the abdomen portion defines a generally downwardly curved edge, and, the lower edge of the abdomen portion defines a downward extension of this abodomen portion extending between the legs, and through the crotch area and, being shaped and joined to the lower edge of the back panel.

Abstract: A drain operating member for a tub or like vessel includes an elongated shaft component having a plunger component on its lower end and a yoke portion on its upper end, the latter being provided with a series of longitudinally spaced apertures. The shaft component is constructed of a material that is relatively rigid and yet resiliently deflectable, to afford positive action to the plunger component while also facilitating installation and accommodating lateral movement produced by the lever. In preferred embodiments, the plunger component will comprise a plug for sealing engagement with an internal seat portion of the conduit assembly with which it is employed, and the shaft and plunger components will advantageously be integrally formed as a single piece. The operating member will preferably have a bifurcated yoke portion, and most desirably will be made from a readily severable material to permit facile alteration of its effective length.

Abstract: A cosmetologist's protective device comprising a pre-formed disposable object having an open-ended tapered cavity therein so that a plurality of such devices can be stacked, one on top of the other, the device having a top wall and two side walls depending from the top wall, the top wall of the device being concavo-convex in transverse cross-section and an arrangement on the underneath surface thereof for adhering the device to a beauty salon shampoo sink to cover the cutaway portion in the front wall thereof, whereby a germ-free cushioned surface is provided for supporting the neck of a customer.

Abstract: For facing a bathtube, an apron (3) of foam plastic is hooked into the tub edge (5) and secured to the adjoining structural elements (1, 20), in particular by means of assembly foam which, after introduction into the openings (9, 11), swells out through openings in the end face.

Abstract: A latch is disclosed for positioning and releasably retaining articulated linkages such as the pivotally interconnected head and body section angles of a folding sofa sleeper bed frame. The latch includes a connecting link pivotally connected at one end to the body section having at its opposite end an elongated slot including a latching notch, a latch plate slidably mounted on the connecting link having an elongated slot which overlies a portion of the length the slot in the connecting link, and a pin connected to the head section angle making a lost motion connection within the connecting link and latch plate slots.