Abstract: Atomizing process and device for dentistry handpieces or angle pieces, characterized in that it involves generating, in the region of the receptacle of the tool in the handpiece or angle piece, a suction effect putting the vicinity of the cutter receptacle under a slight vacuum under the effect of an air cone of which the apex is situated at the point where the tool is working, the other function of this air cone being to direct the cooling fluid by means of an effect of the COANDA type, thereby reducing the consequences of turbulences attributable to the rotation of the tool or instrument.

Abstract: msDNA is a peculiar molecule consisting of a branched RNA linked to single-stranded DNA via a 2', 5' phosphodiester bond. A cell-free system, utilizing cells permeablized with phenethyl, alcohol, was established to study the synthesis of msDNA in Myxococcus xanthus. Permeablized cell labeled with [.alpha.-.sup.32 P]dCTP in the presence of ddGTP, ddATP, or ddTTP, produce a band that migrates at the same position as the full-sized msDNA in an acrylamide gel. However, when this band is treated with ribonuclease A prior to gel electrophoresis, it resulted in many bands of different sizes. This indicates that during the labeling, intermediates are produced in which single-stranded DNAs of various lengths are associated with a compensatory length of RNA such that the total length for each intermediate is identical. These results provide evidence for the previously proposed model in which msDNA is synthesized by reverse transcriptase using a folded RNA precursor as a primer as well as a template.

Abstract: Catalytic process for producing sulphur from H.sub.2 S-containing acid gas wherein the acid gas is subjected to a catalytic oxidation in CLAUS stoichiometry and to a catalytic CLAUS reaction phase with deposition of sulphur on the catalyst with periodic regeneration of the sulphur-laden catalyst and cooling of the regenerated catalyst. The gas used for the regeneration and for the cooling is tapped from the acid gas supplied to the catalytic oxidation and the gas issued from the regeneration is reintroduced into said acid gas after separation of the sulphur contained therein. The process is particularly applicable to the treatment.

Abstract: There are provided improved aqueous chemical cleaning compositions for removing organic and inorganic combustion residues from steel products, said compositions meeting the hydrogen embrittlement potential test criteria set forth in ANSI/ASTM F 519-77. These compositions are of particular utility in cleaning gas turbines in the motoring and running modes. The compositions comprise ethoxylated amines, ethylene diamine tetra acetic acid and demineralized water having a conductivity of or below 0.9 micro mhos. The composition has important application for the aviation and outer-space industries.

Abstract: Anchoring device for a knee prosthesis of the unicompartmental or bicompartmental type, the said prosthesis comprising a tibial plateau provided on its tibial bearing face with anchoring grooves of dovetailed profile forming a grid pattern, characterized in that the anchoring is achieved by an anchoring crosspiece (7) inserted in the tibia and provided on its upper face with a stud (6) complementary to the groove forming a notch and engaging in the latter.

Abstract: An ironing device automatically moves an ironing plate across an ironing table. A pneumatic jack is arranged integral with the ironing plate, supported by a guide including at least two columns, and is adapted to displace the ironing plate vertically. First and second carriages cooperate with first and second motors for moving the ironing plate across the surface of the ironing table. A manual control allows motion of the ironing plate either along the main axes of the carriages or along two axes diagonal with respect to the other axes. In preferred embodiments of the invention, various safety devices are employed to prevent the hot ironing plate from moving into zones which would cause injury to the user.

Abstract: A cured coating composition and substrate coated with the cured coating composition which coating is based upon an aqueous acid binder solution containing phosphate and chromate and/or molybdate ions into which has been dispersed a blend of metallic powder particles of three primary dimensions and flat metal flake materials, which can be applied to a substrate part to be coated more uniformly and thickly than conventional metal flake coatings, and which imparts better corrosion and impact resistance than conventional powder metal coatings.

Abstract: An improved fastening device. The fastener portion itself usually comprises a vise rotatably mounted on a base for connection to a support. In a first preferred embodiment the vise is mounted on a cylindrical stem rotatably mounted within a housing of the base having a cylindrical bore, the axis of rotation of the stem thus being the axis of rotation of the vise. In a second preferred embodiment, the base provides a cylindrical stem and the vise provides a housing with a cylindrical bore in which the stem is rotatably mounted. The vise has a pair of jaws between which a cable is fastened such that the neutral axis of the fastened cable is substantially perpendicular to the rotational axis of the vise.

Abstract: A stacker preferably includes two units, each having three storage drums which are arranged one above the other and which can be rotated independently of each other, and a feed device for carrying printing plates to the storage drums and arranged between the units. Further arranged between the storage drums is a drum loader for receiving printing plates from the feed device and for inserting the received plates into empty storage cells of the drums. The drums can be rotated independently of one another in a clockwise or a counterclockwise direction, for insertion or removal of the printing plates, which may be offset plates or other printing plates which must be handled very carefully.

Abstract: An automatic dispenser dispenses individual items which may not be of a uniform shape, such as bakery products. The items to be dispensed are disposed on an inclined plate having a rocker pivotably mounted at the lower end. A retaining tongue is mounted adjacent to the rocker to prevent the movement of items from the inclined plate into the rocker. When one item is to be dispensed, the retaining tongue is lowered to restrict the motion of the items on the inclined plate while the item in the rocker is tilted out of the rocker to be made accessible to the user.

Abstract: A printed circuit board inspection device includes a lighting system for use with the series of cameras associated with the printed circuit board inspection device which is essentially domed in configuration, and which incorporates a plurality of selectively controllable light emitting diodes for developing desired lighting patterns. The light emitting diodes are arranged within the domed fixture to form an array of defined latitudes and longitudes, and are capable of selective activation to develop the particular lighting patterns which are desired. This permits an acquisition of images useful in developing a "topographical display" of the acquired image, which is useful in enhancing the subsequent inspections which are to be performed.

Abstract: The access window of a slot scanning data capturing system, or the gun of a hand held data capturing system, is fitted with a deactivation system of the type which is generally used to deactivate the tags or labels of an electronic article surveillance system so that the tag or label which is provided on the goods (to be purchased) is deactivated in the course of capturing the data at the point of sale.

Abstract: A skin covered foamed plastic seat capable of structurally preventing the appearance of creases due to the parting lines of the mold. The skin covered foamed plastic seat includes a skin cover including a surface skin to form an outer surface of the skin covered foamed plastic seat and a wadding to be laminated with the surface skin, the skin cover having end sections to be pinched in parting line portions of a mold for manufacturing the skin covered foamed plastic seat, at which the lamination of the wadding over the surface skin is weaker than that in remaining sections of the skin cover.

Abstract: An apparatus for extracting contents from a plurality of envelopes comprises a device for severing edge portions of the envelopes and for discharging the edge-severed envelopes serially and one at a time, and a device for extracting the contents from the edge-severed envelopes including a pair of conveyor belts which diverge from a nip for receiving the edge-severed envelopes from the severing device, and vacuum ports cooperating with the conveyor belts to separate faces of the envelopes from one another, and a device for separating contents from the separated faces of the envelopes, for discharge from the apparatus. Also a device for receiving the separated contents and envelope faces, and for testing them to verify that only effectively extracted contents are passed on for further processing.

Abstract: An apparatus for severing envelope edges in continuous fashion comprises a plurality of devices for severing an envelope edge and a conveyor mechanism for carrying envelopes past the plurality of severing devices, and for rotating the envelopes to present envelope edges to the plurality of severing devices in orientations which permit the edge-severing of each presented envelope edge. Also a severing device for use in connection with the severing apparatus.

Abstract: Disclosed herein is a cutting blade for a mowing apparatus, which comprises a pair of first and second pivotal cutting wheels slidably superposed with each other and each provided with a number of grass cutting edges along its circumference, each of the teeth having a major surface, two side edges and an outer periphery edge; and mechanism for reciprocatingly rotating each cutting wheel in opposite directions through a predetermined angle, respectively. At least one of the side edges of each of the teeth of the cutting wheels is defined by an inclined surface forming an acute angle relative to a major surface of the tooth so as to form a cutting edge, and the outer periphery edge is defined by a plane substantially perpendicular to the major surface of the tooth. Namely, there is no sharp edge in the outer peripheries of the teeth of the cutting wheels or the free ends of teeth.