Abstract: In accordance with the invention, two detection periods t.sub.2 and t.sub.2 ' are set by the use of a pulse train essentially consisting of three pulses. Free induction decay signals FIDa and FIDb obtained during the two periods, respectively, are stored in respective data files. The measurement is repeated a plurality of times while putting at least one of the three pulses of the pulse train out of phase with the others. The free induction decay signals FIDa and FIDb derived by each measurement are stored in their respective data files. After the measurements, a linear combination of the data items which are stored in the data files assigned either to the signals FIDa or to FIDb is formed. The resultant data is subjected to double Fourier transformation to obtain a two-dimensional NMR spectrum. The manner in which the data items are linearly combined is appropriately selected to obtain a desired kind of two-dimensional NMR spectrum.

Abstract: A blast material for the mechanical plating and a continuous mechanical plating process. The blast material comprises up to 90% by weight of steel shot not less than 10% by weight of an alloy powder which comprises 2.5-50% by weight of iron, not more than 5% by weight of at least one of aluminum, copper, tin, magnesium and silicon, the balance being zinc, and has a maximum particle size of about 0.4 mm and an average hardness of 140-450 Hv., The continuous mechanical process comprises continuing blasting, recycling the used blast material and magnetically separating the abraded fine particles of the steel shot in the course of the recycling.

Abstract: A surgically implantable prosthesis system including at least one flexible inflatable member and an imperforate housing. A flexible combination reservoir and pump located within the housing for storing liquid when the inflatable member is deflated and for pumping liquid into the inflatable member and a flexible tube connecting the combination reservoir and pump and the inflatable member for the passage of a liquid between the combination reservoir and pump and the inflatable member. A rechargeable battery operates a reversible electric motor located within the housing operatively connected to the combination reservoir and pump to collapse the combination reservoir and pump to force liquid out of the combination reservoir and pump through the tube into the inflatable member and to expand the combination reservoir and pump to receive liquid from the inflatable member and a battery located within the housing to operate the motor.

Abstract: When ions are implanted into desired locations on a material surface using a focused ion beam system, it is necessary to incline the direction of the implantation at about 7.degree. to a line normal to the material surface. The system according to the present invention uses a deflector consisting of deflecting elements of two stages to deflect an ion beam, for effecting such an inclination. The beam is deflected in a given direction by the deflecting element of the first stage, and then it is deflected in the opposite direction by the deflecting element of the second stage. Since chromatic aberrations of the beam caused by the deflecting elements of the two stages cancel each other, defocusing of the beam on the material due to energy dispersion is suppressed.

Abstract: A reinforcing washer for use in a mine roof bolt assembly comprising a roof bolt having a shaft portion, an embossed bearing plate having a surface which substantially contacts the mine roof, an opposite surface and an aperture through which the roof bolt extends, said washer comprising a rigid member having a first surface shaped to substantially contact and complement the opposite surface of the bearing plate, an opposite surface and an aperture through which the roof bolt extends. Preferably, the shape of the embossed bearing plate and the rigid member is a cup or donut. Most preferably, the washer has a substantially uniform thickness and is manufactured from hardened steel.

Abstract: The outboard motor mounting device comprises a body having a hollow interior to provide buoyancy to the mounting device. The body has a bottom wall, opposed side walls, a front wall, a rear wall and an upwardly facing concave formation. A first flange is connected to the front wall and extends upwardly from the body. A second flange extends upwardly from the rear wall. The upwardly facing concave formation is configured and dimensioned so that a portion of the outboard motor can be moved into the concave formation when the propeller of the motor is raised out of the water.

Abstract: A dome speaker comprising a dome-shaped diaphragm formed of a highly rigid material such as titanium or a titanium alloy, and having at least one elongated cut-out portion which varies the rigidity of the diaphragm and prevents a dip in the anti-resonance frequency range and a peak in the high resonance frequency range of the dome speaker. The speaker also includes a voice coil bobbin connected to the diaphragm. Preferably, the diaphragm includes two elongated cut-out portions in parallel relation to each other and with a center portion of the diaphragm interposed therebetween. A reinforcing rib may be integrally formed at an end of each cut-out portion. The cut-out portion may be covered either by a peripheral member made of a soft material or by a loss stopper formed of a viscoelastic material.

Abstract: A surgeless combustion air blower which, due to the incorporation therein of an impeller having a novel configuration and blade shape, does not surge under periods of low turn-down, and yet which demonstrates comparable volume capacity as conventional impellers of the same diameter. The novel configuration and blade shape of the impeller inhere in three design features of the impeller: (1) the wheel bears no shroud; (2) a quadrangular inducer appends the leading edge of each blade adjacent the hub, which inducer is bent between 40.degree. and 50.degree., and preferably 45.degree., into the direction of rotation of the impeller; and (3) the blade tapers from a maximum chord immediately down-blade of the inducer to a minimum chord at its tip. In addition, the slope of the inducer-blade interface, or "bend line" of each inducer, opposes the predominant taper of the blade from which it appends.

Abstract: An ultrasound transducer device for use below and above room temperature comprises a case secured to a cup-shaped ceramic piece having a substantially flat end wall. The outer surface of the end wall comprises a face through which ultrasound is transmitted and received by the transducer device. The cup-shaped ceramic piece has sidewalls extending along the entire periphery of the end face and back into the case. A piezoelectrically active element is bonded to the inner surface of the end wall of the cup-shaped ceramic piece.

Abstract: The anchor bolt assembly is of the type used in mine roofs and the like in which the anchor bolt assembly is positioned in a bore hole of a rock formation. The bolt assembly includes an elongated shaft having a frustoconical shaped plug at the upper end of the shaft and a head on the lower end of the shaft. A quick-setting resin cartridge is positioned in the bore hole above the plug of the bolt shaft and the bolt assembly is secured to the rock formation by at least the resin. The anchor assembly includes a helical coil external of, surrounding and connected to the bolt shaft for mixing the resin and urging it upward toward the plug end while the bolt shaft is rotated in one continuous direction. The helical coil is disposed below the conical plug and extends a substantial length along the bolt shaft to achieve the mixing.

Abstract: With an accelerator for accelerating an electron beam by a voltage of about 400 KV having a stability of 10.sup.-6, it is difficult to use a flexible, insulated cable to feed the output from a power supply to an electron beam and an accelerating tube. Accordingly, the present invention employs a rodlike connector instead of such an insulated cable. A guide means is provided to permit the movement of a power supply column in the direction of the axis of the connector. This facilitates cleaning or otherwise maintaining the power supply column, the electron gun, and the accelerating tube.

Abstract: Screen printing apparatus for directly printing indicia on a substrate, such as a cap, comprising a screen print assembly including a replaceable screen holder, means for introducing fluid under constant pressure to said screen holder, and means on said screen holder for mounting a sensitized screen, especially a curved screen, upon which viscous ink can be placed; and means for mounting a substrate for printing thereon by contacting said screen to said substrate and introducing fluid under pressure to said holder to force said ink through said sensitized screen to print indicia on said substrate.

Abstract: In a light-transmission type smoke detector, a smoke chamber is composed of a disc-like block of a non-conductive material one side of which has a spiral groove and is coated with a conductive bright metal film and a casing mounted on the block, said casing having a plurality of labyrinth structure smoke entrances. An electric circuit system is placed on the other side of the disc-like block and is covered by a shield sheet. The shield sheet and the coating metal film are electrically connected to shield the electric circuit system.

Abstract: A method for diagnosis of cancer utilizing an ESR spectrometer comprised a first step for mixing cells from a patient with a solution of hematoporphyrin or hematoporphyrin derivative, a second step for isolating said cells from unreacted reagent and obtaining ESR spectral signal on said cells, a third step for finding quantity S.sub.x of the radicals contained in said cells on the basis of the ESR signal, and a fourth step for comparing value S.sub.x at a predetermined level.

Abstract: A golf training device having a first band surrounding the chest of the golfer and a second band surrounding the leading arm of the golfer. The first band has a loop pad on the outer surface adjacent each free end and a hook pad on the inner surface adjacent one free end which cooperates with one of the loop pads on the outer surface of the first band to hold the band in place on the golfer's chest. A flexible inelastic strap has one end attached to the outer surface of the first band and the other end attached to the second band. A hook pad is located on one end of the second band and cooperates with a loop pad on the outer surface of the first band to attach the end of the second band to the first band so that the second band surrounds the leading arm of the golfer to restrain the leading arm and to thereby control the golfer's swing.

Abstract: A method of mechanically frothing and casting an aqueous ionic polyurethane dispersion to yield a mechanically frothed polyurethane foam. The method comprises admixing an aqueous ionic polyurethane dispersion with a stearate stabilizer and an optional aziridine crosslinking agent, and frothing the low viscosity admixture. The polyurethane dispersion contains particles having an average size of less than one micron, and contains between 35 and 70 percent by weight dispersed polyurethane solids. Preferably, each polyurethane particle in the aqueous dispersion is crosslinked. Before frothing, the low viscosity admixture contains between 33 and 87 percent by weight of the polyurethane dispersion, up to 33 percent by weight of an azirdine composition and between 13 and 50 percent by weight of a 33 percent aqueous dispersion of a stearate salt and has, as a result, a viscosity in the range of 100 to 200 centipoise. After frothing, the frothed admixture is knife-coated and cured into a flexible foam sheet.

Abstract: The present invention provides a nuclear magnetic resonance spectroscopy that permits one to see changes in spectra without the use of long-range coupling even if the obtained resonance lines split into complex multiplet patterns.

Abstract: A railroad car arranged to transport automobiles comprises a floor, a roof, a pair of spaced sidewalls, and at least one door assembly that is guided to a position adjacent a sidewall to enable loading and unloading of the rail car. A rail guides the lower end of the door assembly. The rail is positioned along the floor of the rail car. A plurality of fingers attached to the door assembly and extend to a sliding engagement with the rail. The rail has uninterrupted sections and extends substantially entirely across the floor between the sidewalls and has two spaced depressible sections that are pushed down by the tires of automobiles rolling thereover. Each depressible section comprises a predetermined length of guide rail, springs for biasing said guide rail upwardly, and preferably, a slotted channel through which said guide rail partially extends.

Abstract: A new geranium cultivar is characterized by its brilliant color and a short and compact plant. A short flower stem positions the flower immediately atop of the foliage and renders the plant very resistant to wind and rain damage. The pink coloring is accentuated by a red blotch in the throat and a white eye in the center of the floret.

Abstract: A new geranium cultivar is distinguished by its form, which is abundantly branched from the base with compact growth. The soft green, relatively abundant and small leaves are well placed, giving the appearance of a dense, vigorous growth. The plant flowers profusely, with the moderately sized red, violet accented flowers arranged just above the foliage in a beautifully arranged bouquet.