Abstract: A scroll type compressor having a housing unit in which a movable scroll element and a stationary scroll element are received in such a relationship that the movable scroll element orbits about the center of the stationary scroll element. The scroll type compressor further having a mechanical reinforced rotation preventing unit for preventing rotation of the movable scroll element about its own axis, and the rotation preventing unit having first stationary pin fixed to an inner end face of the housing unit and second movable pin fixed to an end face of a base plate of the movable scroll element, and a ring engaged with the first and second rings. A thickness T1 between the outer circumference of the first pin and the inner edge of the inner end face of the housing unit is set to be equal to or larger than 2.4 mm. A thickness T2 between the outer circumference of the second pin and the outer circumference of the base plate of the movable scroll element is set to be equal to or larger than 2.7 mm.

Abstract: A piezoelectric transformer comprising a rectangular plate of a piezoelectric material which is polarized in a thickness direction in a first half section of the plate in a longitudinal direction but is polarized in a width direction in a second half section of the remaining half section. A pair of primary electrodes are coated on the upper and the lower surfaces of the first half section and a pair of secondary electrodes are coated on the opposite side surfaces of the second half section, in an alternative structure, the plate is polarized in the thickness direction in opposite end sections of the plate having a size one third of length of the plate and polarized in width direction at the remaining middle section of plate between opposite end sections. The pair of primary electrodes formed on upper and lower surfaces of opposite end sections of plate and pair of secondary electrodes formed on opposite side surfaces of middle section.

Abstract: A silver halide photographic material is disclosed, comprising a support having provided thereon at least one silver halide emulsion layer, at least one layer of the emulsion layer and other hydrophilic colloid layers containing at least one hydrazine-type nucleating agent having, in the vicinity of the hydrazine group, an anionic group or a nonionic group which forms an intramolecular hydrogen bond with a hydrogen atom of the hydrazine, and also containing at least one of the onium salt compounds represented by formulae (a), (b) and (c), or at least one of the amine compounds represented by formulae (d), (e), (f), (g), (h), (i) and (j). Also disclosed is a method for processing, after exposure, the silver halide photographic material described above with a developer containing a reductone-type developing agent and having a pH of 12 or less.

Abstract: Disclosed is Compound GEX1 of formula (I), having excellent antitumor activity: ##STR1## wherein R.sup.1 represents hydroxy or ##STR2## R.sup.2, R.sup.3 and R.sup.4 independently represent hydrogen or hydroxy; R.sup.5 represents hydroxyl or lower alkoxy; provided that when R.sup.1 is hydroxy and R.sup.5 is methoxy, then at least one of R.sup.2, R.sup.3 and R.sup.4 is the group except for hydrogen, and pharmaceutically acceptable salts thereof.

Abstract: A scroll type compressor using a crank mechanism having enough freedom so that an amount of eccentricity of the movable scroll member becomes variable. An elastic body is inserted between the facing surfaces striking each other in the inside of the crank mechanism so as to prevent generation of a noise due to the collision of the parts when starting up or shutting down the compressor.

Abstract: A GE3 compound of the formula (I) having antibacterial and antitumor properties: ##STR1##

Abstract: A scroll-type compressor comprising mutually mating stationary and movable scrolls for forming a compression chamber. The shell of the compressor comprises a center housing, a front housing, and a rear housing. The stationary scroll is integrally formed with the center housing. The movable scroll is carried by an eccentric shaft portion of a drive shaft which is rotatably supported by the front housing so that the movable scroll can move in an orbit. The rear housing has a first set of bolt holes, and the front housing has a first set of threaded holes for receiving a first set of through bolts which are inserted in the first set of bolt holes from the rear side whereby the center housing is fastened between the front and rear housings by the fastening force of the through bolts.

Abstract: A base plate 41 of a movable scroll member 4 has, at its outer periphery, a section 44 with no scroll wall, while a scroll wall 22 of a stationary scroll member 2 has a section 24 for connecting to an outer cylindrical shell 22. These sections 44 and 24 make a relative lateral slide movement during an orbital movement of the movable scroll member 4 with respect to the stationary scroll member 2. These sections 44 and 24 have axially faced inner and outer edges 44-1 and 24-1, over which the relative lateral movement occurs. These inner and outer edges 44-1 and 24-1 are bevelled, the bevelling being such that any skewed movement of the movable scroll member with respect to the stationary scroll member does not cause locally increased contact pressure, thereby preventing galling as well as seizing.

Abstract: A silver halide photographic material is disclosed, which comprises a support having thereon at least one silver halide emulsion layer, wherein the emulsion layer or other hydrophilic colloid layer contains at least one hydrazine compound and at least one compound represented by the following formula (I): ##STR1## An image forming method is also described, which comprises development processing the above-described image exposed silver halide photographic material with a developing solution comprising (1) from 0.2 to 0.75 mol/liter of dihydroxybenzene based developing agent, (2) from 0.001 to 0.06 mol/liter of 1-phenyl-3-pyrazolidone or p-aminophenol auxiliary developing agent, (3) from 0.3 to 1.2 mol/liter of free sulfite ion, and (4) a compound represented by the following formula (E); and the concentration ratio of the compound represented by formula (E) to the dihydroxybenzene developing agent is from 0.03 to 0.12, and the developing solution has a pH value of from 9.0 to 12.0.

Abstract: A scroll-type compressor comprising mutually mating stationary and movable scrolls for forming a compression chamber. The shell of the compressor comprises a center housing, a front housing, and a rear housing. The stationary scroll is integrally formed with the center housing. The movable scroll is carried by an eccentric shaft portion of a drive shaft which is rotatably supported by the front housing so that the movable scroll can move in an orbit. The center housing has a first set of bolt holes, and the front housing has a first set of threaded holes, so that a first set of fastening bolts are inserted in the first set of bolt holes from the rear side and screwed into the first set of threaded holes. Also, the rear housing has a second set of bolt holes, and the center housing has a second set of threaded holes, so that a second set of fastening bolts are inserted in the second set of bolt holes from the rear side and screwed into the second set of threaded holes.

Abstract: A silver halide photographic photosensitive material comprises a silver halide photographic emulsion layer and a compound represented by general formula (I): ##STR1## wherein V.sub.1 and V.sub.2 each represents a hydrogen atom, an alkyl group or an alkoxy group; at least one of V.sub.1 and V.sub.2 is an alkyl group or an alkoxy group; Z.sub.1 represents a group of atoms which is required to form a five- or six-membered nitrogen-containing heterocyclic ring; Z.sub.2 represents a group of atoms which is required to form a five- or six-membered nitrogen-containing heterocyclic ring; Z.sub.3 represents an oxygen atom, a sulfur atom or a selenium atom; R.sub.1 and R.sub.3 each represents an alkyl group; R.sub.2 represents an alkyl group, an aryl group or a heterocyclic group; L.sub.1, L.sub.2 and L.sub.3 each represents a methine group; M.sub.1 represents a charge neutralizing counter-ion; and m.sub.1 is a number having a value zero or above which is required to neutralize the charge within the molecule.

Abstract: An improved scroll type compressor is disclosed. A moveable scroll is eccentrically connected to a rotary shaft and opposed to a fixed scroll for forming a compression chamber. The moveable scroll performs an orbital movement about an axis of the rotary shaft without rotating about its own axis. With the orbital movement, the moveable scroll reduces the volume of the compression chamber and compresses coolant gas therein. A fixed wall is disposed adjacent to the moveable scroll on the opposite side from the fixed scroll. The fixed wall receives a reaction force of the compressed gas applied to the moveable scroll. First elements disposed between the fixed wall and the moveable scroll transmit the reaction force from the moveable scroll to the fixed wall. Second elements are disposed independently from the first elements between the fixed wall and the moveable scroll for determining the orbit of the moveable scroll.

Abstract: A scroll type compressor has a movable scroll which is supported by a drive shaft by way of an eccentric pin in a housing. The movable scroll engages in an orbital movement for defining a compression chamber with a fixed scroll which is disposed opposite to the movable scroll. The compression chamber decreases in size in accordance with the orbital movement of said movable scroll for compressing gas in the compression chamber. A first ring orbits together with the movable scroll between the movable scroll and the housing, for receiving compressive reaction force acting on the movable scroll. A second ring which is secured to the housing receives the compressive reaction force received by and acting on the ring.

Abstract: Disclosed is a compressor which has a fixed scroll and a movable scroll. Defined between both scrolls is a compression chamber in order to provide compressed gas. A pressure receiving member receives compression reaction force of the compressed gas. A base plate is provided on the movable scroll. A turnable ring is disposed between the pressure receiving member and the base plate. The ring has the first and second surfaces respectively facing the pressure receiving member and the base plate. The first surface of the ring has a plurality of first elements circumferentially spaces and provided at predetermined intervals. A plurality of first recesses are provided in the pressure receiving member, with the first elements fitted into the first recesses respectively. The second surface of the ring has a plurality of second elements circumferentially spaced and provided at predetermined intervals.

Abstract: A scroll type refrigerant compressor having an aluminum or aluminum alloy housing unit in which a stationary scroll unit having a stationary spiral member and a movable scroll unit having a movable spiral member are encased in such a manner that the movable spiral member moves along a predetermined orbiting path without rotating about an axis thereof, and a reinforcing ferric metal liner fixedly attached to an inner cylindrical face of a cylindrical wall portion of the aluminum or aluminum alloy housing unit so as to prevent the inner cylindrical face of the housing unit from being mechanically cracked by the movable spiral member of the movable scroll unit during the running of the compressor even if the movable scroll unit jams due to entrance of foreign materials between the outer face of the movable spiral member and the inner face of the housing unit.

Abstract: On a first piezoelectric sheet of a piezoelectric vibrator, a second piezoelectric sheet is stacked with interposition, between the sheets, of first-set electrodes, formed on an upper surface of the first piezoelectric sheet. Second-set electrodes are formed on an upper surface of the second piezoelectric sheet with each placed halfway between two adjacent ones of the first-set electrodes. The second piezoelectric sheet is poled in directions from each second-set electrode to the two adjacent ones of the first-set electrodes. Preferably, third-set electrodes are formed on a lower surface of the first piezoelectric sheet with each arranged halfway between two adjacent ones of the first-set electrodes. In this event, the first piezoelectric sheet is poled in directions from each third-set electrode to two adjacent ones of the first-set electrodes.

Abstract: A scroll type compressor comprises an immovable scroll defining a spiral space, and a refrigerant is introduced into an outerhost zone of the spiral space. The compressor further comprises a movable scroll engaged with the immovable scroll such that the outermost zone of the spiral space is divided into an inner section and an outer section by an outermost portion of the movable scroll. The movable scroll is revolved around a center axis of the immovable scroll such that the inner and outer sections are alternatively displaced as a compression chamber toward a center of the immovable scroll, and a refrigerant inlet port of the inner section is defined by a termination of the outermost portion of the movable scroll. The termination is disengaged from and engaged with the immovable scroll during the revolution of the movable scroll to close and open the inlet port of the inner section.

Abstract: The scroll type compressor includes a stationary and orbiting scroll members, of which the spiral elements are interfit at an offset angle to form line contacts defining at least one fluid pocket, and an anti-spin mechanism for causing the orbiting member to orbit within the stationary member. A drive shaft is rotatably supported in a housing, and has an outer end a cylindrical inner end and, depending upon the embodiment, either a crank pin or a sliding guide portion projecting axially inward from its inner end. A drive bush couples the drive shaft to the orbiting scroll member, and has either a circular aperture for receiving the crank pin or an engaging slotted recess for receiving the sliding guide portion, as the case may be, whereby the drive bush is either pivotable or slidable with respect to the drive shaft. A counterweight is mounted on either the crank pin or the sliding guide portion between the drive bush and the drive shaft, and is coupled to the drive bush for conjoint movement therewith.

Abstract: The present invention relates to a direct positive photosensitive material comprising at least two kinds of core/shell-type internal latent image-type silver halide grains having different average grain sizes, the smaller grains being substantially constituted of cubic grains, or tetradecahedron grains mainly of the face (100). According to the present invention, a direct positive photosensitive material having a wide exposure latitude and an extremely improved storage stability can be obtained.

Abstract: A scroll type compressor includes a fixed scroll having a fixed spiral element and a fixed end plate, and an orbiting scroll is revolvable without rotating itself in opposition to the fixed scroll. The orbiting scroll includes an orbiting spiral element and an orbiting end plate. A plurality of compression chambers, of which volumes are decreased in response to the revolution of the orbiting scroll, are defined between the scrolls. A discharge port opens to the discharge chambers. The thicknesses of initiating sections of the fixed and orbiting spiral elements are designed larger than those of remaining sections thereof. Sealing members having a spiral shape are slidably interposed between the fixed and orbiting end plates of the fixed and orbiting scrolls, and the initiating sections of the fixed and orbiting spiral elements are in opposition to the respective end plates.