Abstract: A steel laminate type cylinder head gasket of the invention is installed in an engine having a cylinder block with a cylinder bore, a cylinder head with an auxiliary combustion chamber, and a mouth plate attached to the cylinder head for defining the auxiliary combustion chamber. The gasket comprises a first plate, and at least one second plate situated adjacent to the first plate. The first plate includes at least one curved first bead having a contour corresponding to a part of the mouth plate, and at least one second bead, the second bead intercrossing an outer end of the first bead and extending at least partly along the cylinder bore. The first plate further includes at least two third beads, each extending between the first and second beads so that the outer end of the first bead is located close to the cylinder bore relative to the third bead.

Abstract: An injection mold for disc molding such as in the manufacture of video or audio discs. The mold has a stamper removably clamped to one mold half by a rotating stamper holding ring. Both mold halves contain a plurality of clamping pins which selectively engage and hold slots in the holding ring. By rotating the holding ring, disengagement of the ring with the pins of the mold half carrying the stamper occurs simultaneously with engagement of the ring with the pins of the other mold half. Thereby, the stamper is released and may then be replaced.

Abstract: A power transmission device for a full-time four wheel drive vehicle has a differential motion limiting device composed of a hydraulic frictional clutch such as a wet multiple disc type clutch. The friction clutch is disposed between a diff-carrier constituting a front wheel differential gear and a ring gear mount casing covering the diff-carrier and arranged coaxially with the diff-carrier. The ring gear mount casing is associated with the diff-carrier in a center differential gear, and the diff-carrier of the front wheel differential gear is associated with the left hand side gear in the center differential gear. Thus, when the friction clutch is engaged, the ring gear mount casing and the diff-carrier of the front wheel differential gear are integrally coupled with each other so that the rotation of the ring gear is transmitted directly to the front wheel differential gear, while the two elements in the center differential gear are integrally coupled with each other to lock the center differential gear.

Abstract: A ceramic composition represented by the following general formula:Pb.sub.1-x La.sub.x (Zr.sub.y Ti.sub.1-y).sub.1-x/4 O.sub.3wherein O<x<1, O<y<1) is produced by a method which comprises adding a mixed solution of a titanium alkoxide and a zirconium alkoxide to an aqueous solution containing lead nitrate and/or lead acetate and lanthanum nitrate and/or lanthanum acetate thereby simultaneously effecting hydrolysis of said alkoxides and coprecipitation of lanthanum components, further adding an alkaline substance to the resultant system thereby effecting substantially thorough precipitation of lead and lanthanum components, and heating the produced precipitate.

Abstract: A trapless water flush toilet bowl fixture is disclosed. This fixture has: a water closet cesspool sealing member pivotally supported to shut off a waster water discharge port by impinging from underside upon this port; a sinker imparting a sufficient impingement force applied on a lower surface of the discharge port to the water closet cesspool sealing member to maintain a sealing state while resisting a load created when utilizing the same fixture; and a separating force imparting member manipulated by a manpower which member is capable of separating the sealing member from the discharge port by overcoming the impingement force.

Abstract: New animal diet designed for breeding sows contains, as an essential ingredient, a sugar composition that is mainly fructo-oligosaccharides, mixed at 0.1 to 5% level with regular feed. Above diet has effective roles to short days to estrus after weaning of sows, thereby increasing the numbers of piglets at low cost and less labor is expected as a result. The sugar composition is obtained through the enzymatic process of fructose transferase upon sucrose in order to produce fructo-oligosaccharide as a main component.

Abstract: A device with vertical buoyancy tanks fitted to its upper part is provided with rotors which generate horizontal and vertical propulsion, and which stirs the liquid uniformly as it moves freely through a liquid storage tank, thereby preventing the accumulation of sludge. The vertical buoyancy tanks stabilize the stirrer and provide a restoring force if the stirrer is upset. The stirrer is fitted with an ultrasonic wave emitter, and ultrasonic receptors are installed at several positions in the liquid tank. An ultrasonic pulse is emitted after a certain interval when the stirrer is at rest on the bottom of the tank. The position of the stirrer is computed for each pulse emission, and the average is taken to give the actual position of the stirrer.

Abstract: A parking meter according to the present invention displays the states of use of it with the display device thereof by way of reading parking data such as residual parking time unit and parking time or the like from an IC card inserted. A display device according to the present invention has display portions formed by rotational drums which are divided in color or the like so as to make the intended display portion appear through a mask thereof by way of the rotation of the drums for the purpose of realizing the displaying.

Abstract: A dental treatment device for protecting a tongue and removing liquid in a mouth comprises an elongated member and a protecting member connected to an end portion of the elongated member. The elongated member includes a hole extending therethroough, and a connecting portion communicating the hole. The connecting portion is connected to a vacuum source for inhaling fluid through the hole. The protecting member includes a body member having a space formed therein for communicating the hole of the elongated member and at least one opening communicating the space, and a first protecting plate connected to the body member. The first protecting plate extends substantially laterally outwardly from an upper portion of the body member so that when the body member is disposed along a side of a tongue, a part of an upper portion of the tongue is covered by the first protecting plate to thereby protect and depress the tongue and the liquid in the mouth is removed through the opening of the body member.

Abstract: A sustained release antimicrobial agent comprises a clathrate compound composed of a water-soluble microbicide and at least one of the compounds shown at (I) to (V) below:(I) 1,1'-bi-2-naphthol;(II) 1,1,4,4-tetraphenyl-2-butyn-1,4-diol;(III) 9,10-di(4-methylphenyl)-9,10-dihydroznthracene-9,10-diol;(IV) 1,1-bis(4-hydroxyphenyl)-cyclohexane; and(V) 1,1,6,6-tetra(2,4-dimethylphenyl)-2,4-hexadiyne-1,6-diol.A method which uses it for preventing the fouling of a water system is also disclosed.

Abstract: A livestock feed contains, as sugar component, inulooligosaccharides (oligosaccharides consisting of one to five fructose units linked together through .beta.-1,2 linkage) in an amount of 0.1 to 10.0%. This is effective in markedly reducing scours and loose passage often observed in weaned livestock and poultry and thus promoting their growth.

Abstract: A gasket comprises a main body having at least one opening and a plurality of elastic members provided on at least one of upper and lower surfaces of the main body. The elastic members slightly project outwardly from the upper or lower surface. The elastic members surround the openings so that when the gasket is compressed between two parts, the elastic member deform to thereby securely seal around the opening.

Abstract: Disclosed is an alternate walker having extensible/contractible front and rear legs which comprises: a pair of reverse U-shaped frame pipes connected to each other in parallel through cross bar means; a pair of front legs slidably partly inserted into front lower ends of the pair of frame pipes respectively; a pair of rear legs slidably partly inserted into rear lower ends of the pair of frame pipes respectively; a train of serially connected substantially spherical bodies slidably inserted within each of the pair of frame pipes, the substantially spherical bodies in train being connected by a wire which is passed through the substantially spherical bodies in series and which is connected at its opposite ends to the front and rear legs respectively in each of the pair of frame pipes; and a pair of control means provided on the pair of frame pipes respectively for controlling sliding movement of the train of serially connected substantially spherical bodies within each of the pair of frame pipes.

Abstract: In a method of manufacturing a steel laminate gasket, a plurality of steel plates is separately prepared so that each plate is provided with a plurality of holes. Then, at least two kinds of surface pressure regulation plates are separately prepared. The thickness of the two kinds of the surface pressure regulation plates is different. The surface pressure regulation plates are mounted on one of the steel plates at predetermined portions and connected thereonto so that the surface pressure regulation plates do not move relative to the steel plate. The steel plate with the surface pressure regulation plates is assembled with at least another steel plate.

Abstract: A steel laminate gasket is situated between two engine blocks, wherein one of the engine blocks has at least two positioning members for setting a location of the gasket. The gasket comprises at least one first plate having at least two first holes, and a second plate situated adjacent to the first plate and having at least two second holes. The diameter of the first hole is larger than that of the positioning member of the engine block, while the diameter of the second hole is essentially the same as that of the positioning member. The distance between the second holes is essentially the same as that between the two positioning holes. The second holes communicate with the first holes respectively so that the position of the gasket relative to the engine blocks can be determined exactly by the second holes engaging the positioning members of the engine block.

Abstract: A spinner bait includes an L-shaped shank portion having a first ledger and a second ledger, the two ledgers crossing substantially at right angle with an eye portion for a fishing line provided at the crossing of the two ledgers. A lip member is provided in the shank portion, the lip member being bent into a longer portion and a shorter portion, wherein the longer portion is bent with respect to the shorter portion, and wherein the shorter portion receives the first ledger and second ledger passing therethrough.

Abstract: A fluidized bed boiler is controlled by the processes of (1) setting a reference range of the installation height of the fluidizing medium and a reference range of the temperature of the fluidized bed within the fluidizing chamber; (2) sensing the installation height of the fluidizing medium, comparing the sensed height with the set reference range of the settled bed height, and supplying or discharging the fluidizing medium; (3) sensing the temperature of the fluidized bed, comparing the sensed temperature of the fluidized bed with the set reference range, re-setting the reference range of the fluidizing medium settled bed height at a higher height in accordance with the temperature difference by which the temperature of the fluidized bed exceeds the reference range, if any, and re-setting the reference range of the fluidizing medium settled bed height at a lower height in accordance with the temperature difference by which the fluidized bed temperature is below the reference temperature range, if any; and r

Abstract: A gasket for an internal combustion engine comprises a main seal member formed of a plurality of steel plates stacked together, each steel plate having a plurality of openings corresponding to through holes of the engine and at least one communicating portion situated between the adjacent two openings for providing communication between the two openings, a sealing device having a plurality of cylindrical portions to be situated in the openings of the main seal member and at least one intermediate portion to be situated in the communicating portion of the main seal member, and a covering device for substantially covering the sealing device and securely connecting the same to the main seal member. The openings of the main seal member are slightly larger than the through holes of the engine. The cylindrical portions and intermediate portion are integrally formed together.

Abstract: Disclosed is an anaerobic fluidized bed which comprises a fluidized bed type reaction tank, a bed of fluidized carries in the reaction tank, and means for recycling a part of treated water from the upper portion of the reaction tank to the lower portion of the same. The reaction tank has raw wastewater introduction means at the lower portion, treated water removing means and produced gas exhaust means at the upper portion. The bed is formed by filling in the reaction tank with granular carriers not larger than 300 .mu.m in diameter and not smaller than 1.1 in specific gravity, and is established so that the ratio h/H of the initial bed height h to the reaction tank effective height H is within a range of from 0.05 to 0.3.

Abstract: There is provided an anti-seismic rubber bearing made up of a laminate structure formed by bonding a plurality of rigid plates having stiffness properties and a plurality of flexible plates having viscoelastic properties each other alternately, and flanges each attached to the upper and lower surfaces of the laminate structure, characterized by that the local strain is evenly distributed throughout the structure by lowering the local strain which occurs near the flanges.