Abstract: A vacuum instrument for dental hygiene and dental treatment which is intended to permit parodontological treatment of the tooth pockets. The instrument has an elastic suction cap which can produce a sealed vacuum over the gum pockets and interdental crevices. A treatment liquid is supplied to the suction cap and removed by the suction. Intermittent application of the vacuum produces a pumping action, which through likewise intermittent rinsing results in optimal cleaning of the interdental crevices as far as the base of the pocket.

Abstract: A modified propylene polymer having superior coloring-prevention properties is provided by a process which comprises blending a propylene polymer with (A) a polyol or a fatty acid partial ester of the polyol (B) a phenolic antioxidant and (C) a radical generating agent with a propylene polymer containing 5 ppm or more of titanium or 0.5 ppm or more of vanadium as a catalyst residue and subjecting the resultant blend to a melting and kneading treatment at a temperature of 150.degree. C.-300.degree. C.

Abstract: A circuit arrangement for a sanitary fitting controlled in a non-contacting manner comprises a transmitter (3) as well as a receiver (4), at which radiation emitted by the transmitter (3) arrives after reflection on an object (7). In an initialization process, which takes place for the first time after the initial installation, thereafter at greater regular time intervals, the capacity of the transmitter (3) is increased until the reflection on a stationary object (7) in the monitoring range has the result that the evaluation circuit (5) following the receiver (4) is activated. Now the capacity of the transmitter (3) is once more reduced somewhat; the circuit arrangement changes to normal operation. It now has its optimum sensitivity, at which stationary objects (7) no longer cause faulty actuations, but the greatest possible monitoring range is provided for movable objects to be monitored.

Abstract: Continuous processes for producing high melting and viscoelasting polypropylene or ethylene-propylene copolymer are provided.These processes are characterized by (1) using two or more polymerizers connected in series, (2) supplying the whole amount of a catalyst and a molecular weight regulator (hydrogen) in the first tank and (3) a degasification amount of each tank in the second and subsequent tanks being 0.5 to 10 V.sub.1 /Hr (wherein V.sub.1 is a volume of the tank) calculated at 0.degree. C. and 0 Kg/cm.sup.2 G. In the process for producing the copolymer, (4) monomers having an ethylene content of 5 wt % or less are supplied in the first step. According to the processes of the present invention, polymers having a broad molecular weight distribution and good fluidity upon extrusion molding can be obtained and operational control in production is simply made.

Abstract: An automatic continuous developing apparatus has processing chambers dynamically sealed by a pair of rollers. Flood tanks are located between the processing chambers and the outer tanks surrounding the latter. In a raised position the flood tanks maintain a liquid level above the conveyor rollers in the processing chambers, while in a lowered operating position they free the inlet and outlet opening of the processing chambers.

Abstract: A one-pack type epoxy resin composition which can be easily handled and has excellent curing characteristics is provided by blending at least one epoxy resin having more than one epoxy groups in a molecule with a curing agent obtained by reacting at least one diamine compound, at least one N,N-dialkylaminoalkylamine, at least one epoxy resin having more than one epoxy groups in a molecule, urea, and as an optional component, at least one monoamine compound.

Abstract: An intraocular lens having a substantially circular optical portion and two separate fixation arms each having an inner end and an outer free end. The fixation arms are each attached to the optical portion via a short connecting member which extends substantially radially from the optical portion circumference and is of approximately the same thickness and flexibility as the fixation arm to which it is attached.

Abstract: The invention pertains to a load limiting device for elevating devices that are installed in homes to facilitate the transport of people or goods. The object of this invention is to provide a load limiting device for home elevators which will prevent the operation of the elevator when the load is too great. The device utilizes an improved resilient compressible member which surrounds an elevator lifting cable and is also positioned between a cable anchoring device and a portion of an actuating arm that is coupled to a limit switch.

Abstract: An optical thickness measuring instrument for transparent work-piece, in particular glass plates and transparent films, consists of a scanning head (10) with a servo-controlled measuring lens (24), a mirror (12) arranged perpendicularly to the axis of the latter and means (66 to 72) for positioning the work-piece (64) in parallel above the mirror (12). The servo control adjusts the measuring lens (24) so that a measuring light source (34) is focussed on the surface of the mirror. For this purpose, the measuring lens (24) must be adjusted by the associated servo drive (18, 20) depending on the thickness of the work-piece (64). The electrically measured (40) adjustment displacement of the measuring lens (24) is a measurement of the thickness of the work-piece (64). (FIG. 1).

Abstract: Therapeutically active organic compound exhibiting at least one group comprising a structure --S'--S"--R, wherein the group --S"--R is defined by R being an organic group comprised in a physiologically acceptable compound H--S"--R obtainable by the splitting of the disulfide bridge --S'--S"-- in said structure, in which compound H--S"--R the sulfur atom S" is bound to a carbon atom in a heterocyclic aromatic ring in R having a configuration being such that the compound H--S"--R, while maintaining physiological acceptability, is stabilized, by tautomerism or resonance involving the sulfur atom S" bound to R, so as to be mainly excluded from reaction involving thiol disulfide exchange; S' being bound to an aliphatic carbon atom; and said compound, in addition to the group or groups comprising the structure --S'--S"--R, consisting of a residue of a therapeutically active organic base compound of non-polypeptide structure bound to S'.

Abstract: A catalyst component for olefin polymerization composed of a solid component (IV) and capable of affording a supported type catalyst composed of large particles and having a sharp particle size distribution is provided,which solid component (IV) is obtained bystep A of reacting an organic Mg compound of a specified formula with a 1-20C saturated or unsaturated mono- or polyhydric alcohol C in the presence of CO.sub.

Abstract: 11-epi PGF.sub.2 alpha esters are employed in treating glaucoma or ocular hypertension.

Abstract: The yarn undoing device comprises a rotary trunk for mounting the knitted fabric, a plurality of yarn winding rotary members disposed at a proper distance at an outer extended position upward of the rotary trunk, a drive device for rotating the rotary trunk in a direction opposite a direction where the yarn of the knitted fabric is undone and rotating it intermittently for a fixed amount of rotation set on the basis of a shifting range of the undoing of the yarn, a clutch provided on the yarn winding rotary members, a device for setting a shifting range of the undoing of the yarn to be drawn from the knitted fabric provided on the rotary trunk to a range where the yarn is rewound on the yarn winding rotary member without causing the twisting and the like and detecting an amount of a range where the yarn to be drawn from knitted fabric provided on the rotary trunk is undone, and a device for performing the engaging or disengaging operation of the clutch of the yarn winding rotary member and driving operation o

Abstract: A disposable diaper includes a semi-rigid absorbent body and high flexible side flaps disposed on laterally opposite the thereof. Each of said side flaps includes a first flap disposed outside the absorbent body and a second flap diverged from the first side flap. Each of the second flaps has the associated one of an elastic band incorporated therein and turned up under an elastic effect of the associated elastic band at least along a line of the divergence.

Abstract: The present invention pertains to a method wherein a concavoconvex cutting line is applied repetitively in a periodical way in the longitudinal direction of a continuous first web to form first and second partial webs; said first partial web is offset with respect to said second partial web in the longitudinal direction by a prescribed interval so that the concave edges and the convex edges of the first and second partial webs are positioned opposite to and aligned with each other, whereafter a continuous second web is used to connect the outside edges opposite to the said aligned concave and convex edge portions of the first and second partial webs, and as the second web is bonded with the outside edges of the partial webs a composite web is formed, following which the first and second partial webs of the composite web are spread apart.

Abstract: Epoxides are prepared by reaction of compounds containing olefinic unsaturation, for example .alpha.-olefins, terpenes and steroids, with an aliphatic diperoxydicarboxylic acid. The diperoxydicarboxylic acid contains 2 to 16 carbon atoms and suitably at least 6 carbon atoms. The process gives a good epoxidation process and does not give rise to byproduct formation.

Abstract: A process for producing a catalyst component for olefin polymerization is provided, which process comprises spraying a solution of a magnesium compound e.g. MgCl.sub.2 and an alcohol such as MgCl.sub.2. nROH (wherein R is 1-10 C alkyl and n is 3-6) into a cooled spray column to obtain a spherical solid component (carrier) without any substantial vaporization of the alcohol, followed by partly drying the component for a time till a specified ratio of the alcohol/MgCl.sub.2 is attained, and then subjecting the resulting component to treatment with a titanium halide and an electron-donating component, the resulting component having a large particle diameter, without any dispersion of the solvent content in the component particles and also without any breakage of the particles when subjected to treatment with the titanium halides.

Abstract: A regulating circuit for the servo drive for the mobile precision optics of an equipment for high-precision measuring of micro-contours of a work-piece surface contains a position transmitter (40) which ascertains the actual position of the precision optics to correct disturbances caused by vibration and shaking. This is part of an internal loop comprising a proportional-derivative controller (68) and an integral controller (70). An external loop which predetermines the reference input for the internal loop formed by these elements contains an integral controller (74) which receives a signal from a detector (82) which corresponds to the spacing of the just measured point on the test surface from the focal point of the precision optics. The local reflection behaviour of the test surface is measured (84) and used for correcting the gradient of the control characteristics (86).

Abstract: A support device for facilitating the sharpening of a knife blade or the like is provided. The device is a solid block of rigid material having a flat lower surface to rest on a stable surface and an upper surface parallel to the lower surface. The upper surface has an elongated arcuate channel therein which extends the length of the block. Two spaced apart lips extend horizontally along the upper edges of the channel and extend slightly inwardly of the upper edges of the channel towards each other. A knife having a width greater than the width of the channel is inserted into the channel with its cutting edge extending out of the channel for sharpening, its non-cutting edge abutting against one of the lips, and the side if the knife abutting against the other lip. Thus the knife is held at the proper angle for sharpening with a stone.

Abstract: Here are disclosed disposable garments such as a diaper having adhesive areas on top- and/or backsheet(s) along leg-openings. Each of the adhesive areas is defined by a plurality of spiral adhesive traces. The stretchable elastic means are bonded to the top- and/or backsheet(s) along the adhesive areas, respectively.