Abstract: An object of the invention is to provide a light bulb socket that prevents the erroneous insertion of a light bulb. A light bulb socket has contactor inserting slits 15 and 16 with their inlets 15a and 16a at the edge of the opening of a bulb engaging section 12, and bulb inserting grooves 31. The inlets 31a of bulb inserting grooves 31 have smaller heights than the inlets 15a and 16a of the contactor inserting slits 15 and 16. The edge of the opening of the bulb inserting section slopes from each of the inlets 15a and 16a down to the inlets 31a, thus providing guide surfaces 36. The light bulb is connected to the bulb socket by turning it clockwise and counterclockwise with its base inserted into the bulb engaging section 12.

Abstract: Balls to be moved radially outward by a centrifugal force are held in a clutch hub, and projections extending around the outer circumferences of the balls are united with a synchronizer ring. Those portions of the projections, which radially confront the balls, are formed with slopes for establishing an axial force to push the synchronizer ring away from the spline piece on the basis of the centrifugal force of the balls. Thus, the axial force for disengaging the synchronizer ring from a rotating member to be synchronized can be increased to prevent the chatter at a low number of revolution and to effectively eliminate the drag torque at a high number of revolution.

Abstract: A male screw portion 13 is formed on the outer circumferential surface of the connector 10, a female screw 22 is formed on the inner circumferential surface of the tube 21, and the two are screwed together to prevent withdrawal. A ratchet catch projection 15a1 is provided on the bottom surface of the arm 15a formed on the side of the connector body 10, arranged in such a way that it allows turning in the fastening direction with respect to the catch projection 24a of the lock member 24 formed on the edge of the opening 21a, and does not allow turning in the reverse direction.

Abstract: A bulb socket for holding a wedge base bulb which has a bulb portion, a base portion and power terminals, the bulb socket comprising a socket body, supplying terminals and holder members. The socket body is provided for receiving the base portion of the wedge base bulb. The supplying terminals are electrically connecting with the respective power terminals of the wedge base bulb under a predetermined pressure, and are held by the socket body. The holder members are holding the base portion of the wedge base bulb therebetween under a predetermined pressure. And the holder members are separate from the supplying terminals, and are attached to the socket body.

Abstract: A housing structure for coupling and releasing optical modules comprises three housing. A first housing including a distal wall at one end, an opening at the other end, and the opening having a first protrusion part protruding toward inside of the opening. A second housing for receiving and holding an optical module provided in the first housing so as to be slidable. The second housing includes a second protrusion part for engaging with the first protrusion part and the sliding of the second housing being limited by the distal wall of the first housing and the first protrusion part. A third housing for holding an another optical module including holding parts for selectively holding the second housing and a contact part provided at one end of the third housing for touching the second housing. The second housing also includes engaging means for engaging the holding parts of the third housing.

Abstract: A liquid crystal display comprising a compound of the formula ##STR1## wherein each of Y.sup.1 and Y.sup.2 is independently F, Cl, CN, OCN, SCN, OCF.sub.3, OCF.sub.2 H, OCF.sub.2 CF.sub.3, CF.sub.3, R, --OR, --COOR or --OCOR, wherein R is alkyl, alkenyl or alkoxyalkyl, provided that at least one of Y.sup.1 and Y.sup.2 is R, --OR, --COOR or --OCOR; each of Z, Z.sup.1, Z.sup.2, Z.sup.3 and Z.sup.4 is independently a single bond. CH.sub.2 CH.sub.2 --, --CH.dbd.CH--, --C.dbd.C--, --COO--, --OCO--, --CH.sub.2 O--, OCH.sub.2 --, --(CH.sub.2).sub.4 --, --(CH.sub.2).sub.3 --O-- or --O--(CH.sub.2).sub.3 --: ring A is a group of formula (II): ##STR2## wherein each of X.sup.1, X.sup.2, X.sup.3, X.sup.4, X.sup.5, X.sup.6, X.sup.7, X.sup.8, X.sup.9, and X.sup.

Abstract: This invention aims to efficiently assemble a pressure sensor 10 to a connector for a fuel tank. A connector adapted to be connected to electrical devices for the fuel tank is attached to a base plate 1 which closes an opening in the tank. A connector housing 4 is provided with an accommodating chamber 11 in which the pressure sensor 10 is secured. It is possible to assure to provide a space for a pressure sensor 10 in an existing connector, to prevent an increase in the number of connectors, and to decrease costs.

Abstract: A cathode terminal, to be mounted on a bulb socket, comprising a first connection strip which is elastically connected with the cathode of a mouth piece of a bulb; and a second connection strip to be connected with a connector. The cathode terminal has a covering portion formed at the leading end thereof by bending said cathode terminal so as to cover the upper end of said opening of said terminal inserting groove. Therefore, the pin of the bulb cannot be inserted into the cathode terminal inserting groove.

Abstract: A bulb socket that avoids the various disadvantages caused by insert molding of a terminal of a complicated shape and also satisfies characteristics required for different portions of the terminal. A housing body is made of a plastic material and includes a socket housing for receiving a base portion of a bulb and a connector housing for receiving a feeder connector. Each connector-side terminal is of a generally L-shape and has a connector tab portion and a relay tab portion extending perpendicularly from this connector tab portion. Bulb-side terminals are provided in the socket housing at corner portions thereof in opposed relation to each other and function to mechanically hold the base portion of the bulb, and also function to electrically contact lead wires on the base portion, respectively. This bulb-side terminal has a relay terminal portion formed at a lower end thereof, which portion can be press-fitted on the relay tab portion of the connector-side terminal.

Abstract: A cyclic hydrocarbon derivative represented by formula (I): ##STR1## wherein each of Y.sup.1 and Y.sup.2 is independently F, Cl, CN, OCN, SCN, OCF.sub.3, OCF.sub.2 H, OCF.sub.2 CF.sub.3, CF.sub.3, R, --OR, --COOR or --OCOR, wherein R is alkyl, alkenyl or alkoxyalkyl, provided that at least one of Y.sup.1 and Y.sup.2 is R, --OR, --COOR or --OCOR; each of Z, Z.sup.1, Z.sup.2, Z.sup.3 and Z.sup.4 is independently a single bond, --CH.sub.2 CH.sub.2 --, --CH.dbd.CH--, --C.tbd.C--, --COO--, --OCO--, --CH.sub.2 O--, OCH.sub.2 --, --(CH.sub.2).sub.4 --, --(CH.sub.2).sub.3 --O-- or --O--(CH.sub.2).sub.3 --; ring A is group of formula (II): ##STR2## wherein each of X.sup.1, X.sup.2, X.sup.3, X.sup.4, X.sup.5, X.sup.6, X.sup.7, X.sup.8, X.sup.9, and X.sup.

Abstract: A cathode terminal, to be mounted on a bulb socket, comprising a first connection strip which is elastically connected with the cathode of a mouth piece of a bulb; and a second connection strip to be connected with a connector. The cathode terminal has a locking portion formed at the leading end thereof by bending said cathode terminal so as to cover the upper end of said opening of said terminal inserting groove. Therefore, the pin of the bulb cannot be inserted into the cathode terminal inserting groove.

Abstract: A projection is provided on a negative terminal projecting toward the socket center and positioned directly below the bottom of the bulb base, a cut-out recessed to the bottom is provided in the top of the base part, which is positioned along the bottom of the bulb insertion opening and is bent in the perpendicular horizontal direction from the bottom of the flat member, and the base part is set to not contact the positive terminal when positioned with the projection contacting the bottom shoulder of the bulb base.

Abstract: A terminal formed by bending from a single metal piece for use in a bulb socket having a bulb insertion opening for accommodating a bulb, where the terminal is used for connecting with a base electrode formed in the outer perimeter of the bulb includes a contact element. The contact element is formed by stamping the metal piece to have a contact portion and a spring portion for resiliently hold the contact portion in contact with the base electrode. The spring portion is located on a position away from the base electrode when the bulb is inserted in the bulb insertion opening. Therefore, the spring porion of the contact element is kept from deterioration of spring characteristics caused by the heat from the bulb.

Abstract: A gear speed change system includes an input shaft, an output shaft coaxial therewith, a first counter shaft disposed parallel to the input and output shafts, and a second counter shaft coaxial with the first counter shaft. The input shaft and the first counter shaft, and the second counter shaft and the output shaft are coupled at a fixed ratio, respectively. One of gear sets selectively couples the input shaft to the second counter shaft and the output shaft to the first counter shaft, respectively. A clutch is provided between the first and the second counter shafts. With this construction, speed changes by the first counter shaft, the second counter shaft, and the combination of the first and second counter shafts may be effected, thereby reducing the number of required gear sets as compared with that of the speed change steps. The first counter shaft and the second counter shaft may be replaced with each other.

Abstract: A cathode terminal, to be mounted on a bulb socket, comprising a first connection strip which is elastically connected with the cathode of a mouth piece of a bulb; and a second connection strip to be connected with a connector. The cathode terminal has a locking portion formed at the leading end thereof by bending said cathode terminal so as to cover the upper end of said opening of said terminal inserting groove. Therefore, the pin of the bulb cannot be inserted into the cathode terminal inserting groove.

Abstract: A socket for a wedge base bulb, in which a cylindrical socket body has an opening for receiving the bulb and a terminal having a pair of opposed contact pieces is mounted in the opening and the contact pieces grip a base portion of the bulb therebetween so as to be electrically connected to the base portion, the improvement comprising: a slot for receiving a rectangular platelike mounting portion of the terminal, which is formed on an inner face of a circumferential wall of the socket body so as to confront the opening; a step portion which projects radially inwardly from an axially lower location of the inner face of the circumferential wall in the slot; wherein when the bulb has a minimum size, the bulb is supported by a lower portion of the mounting portion of the terminal; and wherein when the bulb has a maximum size, an upper portion of the mounting portion of the terminal is deflected radially outwardly by the bulb about a fulcrum defined by an upper edge of the step portion of the slot so as to grip th

Abstract: A process for preparing substantially purified aqueous indole solution. In the process of the present invention, crude indole containing an organic impurity is dissolved in an organic solvent which is immiscible with water, the distribution ratio of the impurity to the organic phase, when two-phase liquid system is formed with the organic solvent and an aqueous medium, being greater than that of indole; and the indole solution is contacted with water or an aqueous reaction medium for conducting the reaction to form two-phase liquid system and to distribute indole to the aqueous phase.

Abstract: In a power transfer mechanism including an input shaft arranged to be applied with drive torque from a prime mover of a motor vehicle, a first output shaft arranged coaxially with the input shaft for drive connection to a first set of drive axles and a second output shaft arranged in parallel with the first output shaft for drive connection to a second set of drive axles, a planetary gearset of the double pinion type is mounted on the first output shaft to transfer the drive torque from the input shaft to the first and second output shafts, the planetary gearset including a ring gear in drive connection to the input shaft, a sun gear in drive connection to the first output shaft and a planet carrier for drive connection to the second output shaft, a limited-slip differential in the form of a viscous fluid coupling is disposed between the ring gear and planet carrier to limit differential action between the first and second output shafts, and a drive train for drive connection between the planet carrier and th

Abstract: An exhaust gas treating apparatus comprised of a discharge tube consisting of a tubular chamber having a gas introduction opening and a gas withdrawal opening and a cathode and an anode provided therein so as to form a gas flow passage, and a dc or ac power supply connected to the electrodes. The cathode is a cathode pair composed of at least one pair of cathodes positioned opposite to each other nearly parallel to the gas flow passage, and a space defined by the cathode pair communicates at one end with the gas introduction opening and at the other with the gas withdrawal opening. The anode is an anode pair composed of at least one pair of anodes positioned opposite to each other within the above space in a direction approximately at right angles to the cathodes and without contact with the cathodes. A magnetic field applying means for forming a dc or ac magnetic field is provided in a direction opposing the cathode.