Abstract: Compounds of the class of salicylanilides substituted in the 4-position of the anilino moiety with a --CH(CN)-Ar group wherein Ar is phenyl, substituted phenyl, thienyl, halothienyl or naphthalenyl, said salicylanilides being useful as parasiticides.

Abstract: A photomask comprising a support that is transparent to ultra-violet radiation and visible light and a layer incorporating a photomask image, the image parts of which contain a complex compound of a silver halide and a diazonium, pyrylium, or thiapyrylium salt, wherein said complex compound is substantially opaque to ultra-violet radiation and blue light but substantially transmitting visible light in the wavelength range above 500 nm.

Abstract: Winding apparatus for winding wire, thread or the like onto a flanged spool including a thread guide for traversing the wire or thread back and forth lengthwise of the spool during winding and means for detecting surface irregularities of the wound wire or thread in two zones each adjacent to a respective one of the spool flanges. The means for detecting surface irregularities comprises a buffer-accumulator located upstream of the spool, a linear speed sensor located between the spool and the buffer accumulator, and gating means for inhibiting the output from the sensor except when the thread guide is in a position to guide the thread or wire into one of said zones.

Abstract: Process for the preparation of 7-substituted amino-desacetoxycephalosporanic derivatives comprising converting a 6-substituted amino-penicillanic acid sulfoxide into an anhydride of a 6-substituted amino-penicillanic acid sulfoxide, heating the said acid anhydride intermediate at a temperature up to at most 160.degree. C in a dry inert organic solvent with an anhydrous acid which is capable of causing ring expansion of the penam ring to a .DELTA..sup.3 -cephem ring, in the presence of a silicon-containing compound capable of (a) removing water formed during the ring enlargement of the penam structure fast enough to prevent water hydrolysis of the acid anhydride moiety present and (b) forming neutral or basic products on hydrolysis, the aforesaid acid being strong enough not to be, or not to a substantial extent to be, silylated under the reaction conditions employed, and hydrolyzing the resulting compound in situ to form the .DELTA..sup.

Abstract: An apparatus for detecting the presence of metallic particles in a flow of dielectric material is based upon the principle of measuring the frequency shift of an oscillator upon passage of such a particle through the self induction coil forming part of said oscillator. Special arrangements are provided for rendering the magnetic field as uniformly as possible within the coil so that the magnitude of the signal is not subject to significant fluctuations whether the particle passes through the center of the self-induction coil or not.

Abstract: A process is described for the preparation of urea at a high temperature and pressure whereby the quantity of water recycled to the urea-synthesis reactor along with the recycle ammonium carbamate may be reduced. The high pressure aqueous urea solution from the reactor is expanded into two or more ammonium carbamate decomposition stages operating at successively lower pressures. In at least one of the ammonium carbamate decomposition stages the expanded aqueous urea solution is heated in a controlled manner and a first off-gas is separated. The residual aqueous urea solution is again heated and a second off-gas is removed, which off-gas is combined with the first off-gas, condensed and recycled to the urea-synthesis reactor.

Abstract: Plastic socket of fibre reinforced thermosetting material comprising an inner push edge, a first recess at each end for positioning sealing means, which are held by means of a retaining ring which is accommodated in a second recess. The inner wall between the first recess and the push edge tapers outwardly.

Abstract: Diphenylmethoxyethylamines of the general formula ##STR1## in which R.sub.1 represents a fluorine, bromine or chlorine atom, R.sub.2 represents a hydrogen or fluorine atom and R.sub.3 represents a hydrogen, fluorine or chlorine atom, with the provisos that R.sub.3 is a hydrogen atom when R.sub.2 is a fluorine atom, R.sub.1 is a fluorine atom when R.sub.3 is a chlorine atom and R.sub.1 is a fluorine or bromine atom when R.sub.2 and R.sub.3 both are hydrogen atoms, and their non-toxic acid addition salts are disclosed. The compounds have dopaminergic properties and their use is indicated for treating the Parkinson syndrome. Compositions for such use are disclosed.

Abstract: A marine outboard motor is provided with an exhaust valve assembly to operate automatically and prevent ingress of water in the event of a capsize. The exhaust gases pass downward through a vertical tube, to a ring of exhaust ports in the tube wall and, if the engine is inverted, a weighted sleeve fitted telescopically round the lower end of the tube drops into a position where it closes the exhaust ports in a fluid-tight manner. Inside the tube is a check-valve in the form of a captive ball, that upon inversion, drops on to a valve seat located above the ring of exhaust ports.

Abstract: An enduring cage for fish or other aquatic animals is provided. The structure of the cage is such that it can be made of deterioration-resistant materials at a reasonable cost. The cage has a top frame made of bent aluminum tubing or pipe. The tubing is slit so that it has a horizontal gap or slot into which are inserted the upper edges of flexible netting side walls. The top frame is strengthened by the use of an aluminum top sheet inserted into the same slot as the upper edges of the netting and forming a partial cover for the top of the cage. The tubing then is clamped, by means of bolts inserted through holes in the tubing, and the edges of the netting and the top sheet. The netting and top sheet are held tightly and evenly in place. The side walls and bottom of the cage are made of netting panels which are fastened together at their edges to form seams.

Abstract: A method for optically aigning a machine part which should have its center line perpendicular to the vertical plane of a reference. The deviation in the horizontal and in the vertical plane between the actual position and the desired position of the part is numerically determined through the use of a theodolite. For determining the deviation in the horizontal plane two reference marks are provided entirely outside the machine at a distance as far as possible from each other. The distance between the two reference marks determines both a base line running parallel to the longitudinal center line of the machine and the position of the vertical plane of reference.

Abstract: Diesel fuel composition comprising a mixture of hydrocarbons boiling in a range from about 310.degree. to 475.degree. F. containing an additive mixture composed of (1) dimeric and trimeric acids produced by the condensation of unsaturated aliphatic monocarboxylic acids having between about 16 and about 18 carbon atoms per molecule, and hydroxyaliphatic monocarboxylic acids having between about 16 and about 18 carbon atoms per molecule, (2) a normally liquid completely or partially neutral amine salt of an oxo-alkyl acid ester of orthophosphoric acid in which each esterifying oxo-alkyl group contains 13 to 16 carbon atoms and the amine is an aliphatic hydrocarbon monoamine of 16 to 24 carbon atoms in which each aliphatic hydrocarbon radical is attached to the nitrogen through a saturated carbon atom, (3) an aliphatic demulsifier consisting of fatty acids alkoxylated by a mixture of ethylene and propylene oxides and (4) a saturated hydrocarbon solvent.

Abstract: A V-shaped, substantially flat, sheet metal, combined web-connector plate having diverging web-forming legs and integral apex and leg end connector portions provided with struck-out teeth for embedding within spaced apart wooden chord members to form a wood chord-metal web type truss. The truss is assembled upon an apparatus including a horizontal support surface, chord support means for removably positioning the chords above the support surface and means for positioning a number of truss-web connectors beneath the chords, with their teeth extending upwardly towards the chords. Additional web-connectors are located loosely upon the upper surfaces of the chords. A two-unit press is supported upon the support surface on opposite sides of the chords for movement parallel to the chords, and is provided with clamp pressure means which overlap selected apex and leg connector portions on both chords and simultaneously squeeze them toward the chords for embedding their teeth therein.

Abstract: A novel enzyme having a high proteolytic activity in alkaline media and being suitable for inclusion in washing compositions and which is produced by a novel Bacillus strain designated "PB 92", or its proteolytic enzyme producing mutants or variants. A culture of the Bacillus is deposited with the Laboratory for Microbiology of the Technical University of Delft, The Netherlands, where it has been given number OR-60.

Abstract: Spreader for farmyard manure has a moving wall to push manure to a discharge rotor. The wall is moved by a hydraulic ram located at the side of the spreader. The ram is coupled to the wall by chains trained round pocket wheels or sprockets.

Abstract: A bidirectional filter circuit having an input and an output and substantly constant input and output impedance characteristics over the desired frequency range. A low-pass filter network is connected between filter input and output and has identical low-pass filter half sections cascaded back-to-back with a symmetrical all-pass network interposed therebetween, the all-pass network providing isolation between the low-pass filter half sections and the desired terminating impedance therefor. First and second identical compensating networks are respectively connected to the filter input and output and have reciprocal characteristic functions with respect to the low-pass filter half sections to compensate for impedance changes in the low-pass filter half sections over the desired frequency range without affecting amplitude characteristics thereof.

Abstract: The invention concerns a vibration damping mat having on either side projections that, when stacking a number of such mats, so engage each other that the assembly behaves like a single thicker mat having the lateral stability of a single mat and having the same differentiated damping effect for different vibration amplitudes as a single mat, however with a different absorption percentage.

Abstract: A pallet construction for use with detachable tiering frames, which pallet is fabricated of metal having parallel stringers with a plurality of longitudinally spaced-apart deck members extending transversely therebetween which latter are fixed, as by welding, to said stringers. Said pallet may be adapted for use with tiering frames of the center post or corner post type by means of a unique support member fixed, in the former case, to the intermediate zone of the under face of the stringers and end deck members, and in the latter case to the ends of said stringers. Said supports each incorporate a surface bearing portion for engaging a portion of the underlying tiering frame; there being an adjacent inclined portion which serves as a detent to inhibit shifting of the pallet as so supported while also acting cammingly to assist in positioning of such pallet. Each support has a base portion for engaging a support surface.

Abstract: The adhesion of hydrophilic layers on a dimensionally stable polyester film support is improved by applying after longitudinal stretching of the polyester film a single adhesive layer thereon. The thus covered polyester film is stretched in transverse direction and heat-setted at 180.degree.-220.degree. C. The adhesive layer comprises 30 to 80 % by weight of a chlorine-containing copolymer, 5 to 30 % by weight of gelatin, 5 to 40 % by weight of a plasticizer for the gelatin and 0 to 30 % by weight of a metal-complexing antistatic agent.The polyester film may be a film of polyethylene terephthalate and the hydrophilic layer applied to the single adhesive layer may be a light-sensitive gelatin silver halide emulsion layer.

Abstract: A sheet material including in working relationship with a reducible silver salt a sterically hindered phenol derivative having the following structural formula: ##STR1##