摘要:
A reclining device for vehicle seats utilizes a differential reduction gear (A) and a small size high speed motor (27) as a drive source, wherein one gear (10) having a plurality of slots (15) positioned radially outwardly from the axis of the gear is between another gear (16) having a corresponding number of slots (20) in alignment with the slots (15) in the one gear and a bracket (22) associated with the other gear (16) and held in position by rivets (12,21) through the aligned slots in the two gears to thereby regulate the adjustment range of the reclining angle. The motor output shaft (27a) and reduction gear (A) are connected by a resilient joint (35), a resilient member (32) is interposed between the motor and coupling (33) or between the coupling and reduction gear (A) to prevent oscillation and noise, and a coiled spring (43) acts on one end of the worm shaft (30a) of the reduction gear to prevent play between a worm (30 ) and worm gear (29).
摘要:
In the shadow mask of a color cathode-ray tube, the array direction of in-line electron guns is parallel with the horizontal axis, and the radius of curvature along the horizontal axis of the plate portion of the shadow mask is so set as to be greater than that along the vertical axis thereof. The horizontal pitch of the apertures formed in the plate portion of the shadow mask is increased from the center region of the plate portion toward the periphery of the plate portion along the vertical axis.
摘要:
A hydraulic reaction force apparatus for a power steering system has a pump, a power cylinder, a control valve, a first variable orifice, a hydraulic reaction force chamber, and a spool valve. The spool valve has a supply port connected to the pump, a reaction port connected to the hydraulic reaction force chamber, a tank port connected to a tank and a second variable orifice controlled by a spool in the spool valve. The opening of the second variable orifice is changed by a displacement of the spool caused by the pressure difference between upstream and downstream pressures of the first variable orifice, thereby connecting the reaction port to the supply port and the tank port and controlling the magnitude of the hydraulic reaction force.
摘要:
A protective guard for a combustion appliance is disclosed which comprises a front frame having a pair of vertical frame portions between which a protective guard body is provided; a pair of side frames which at one end are rotatably supported on the vertical frame portions of said front frame on both ends thereof; and a cross beam member on both ends thereof slidably engaging the side frames. When the cross beam member is positioned at the upper ends of the side frames, the side frames are so rotatable about the axes of the upper ends of the vertical frame portions of the front frame that the side frames are able to be inwardly folded, and when the cross beam member is positioned at the lower ends of the side frames, the side frames are so fixed in an unfolded manner that they cannot be rotated. Thus, it will be noted that the protective guard can be fixed so that it can surround a combustion appliance in a stable manner.
摘要:
A cassette retaining device comprises a pair of retaining mechanisms disposed respectively on both sides of the top surface of a sample table and pressing respectively on both sides of the top surface of a cassette to hold the cassette in said predetermined position between said retaining mechanisms and the sample table. Each retaining mechanism includes a presser capable of moving between a first position where the presser presses on a side portion of the top surface of the cassette to hold the cassette and a second position where the presser is separated from the top surface of the sample table to allow the cassette to be inserted or removed from between the presser and the sample table, a rocking arm rockable around a first pin relatively to the sample table and bearing the presser so that the presser may rock around a second pin parallel to the first pin, and a spring urging the rocking arm to rock in one direction, thereby locating the presser in the first position.
摘要:
A carboxylic ester is produced in one step in a high yield and with a high selectivity by reacting an aldehyde with an alcohol in the presence of oxygen by using a catalyst comprising (I) palladium, (II) at least one compound selected from the group consisting of lead compounds, thallium compounds and mercury compounds and (III) at least one compound selected from the group consisting of alkali metal compounds and alkaline earth metal compounds.
摘要:
A method for racemization of optically active amines which comprises contacting an optically active amine of the formula: ##STR1## wherein C* is an asymmetric carbon atom, R.sub.1 is alkyl, aralkyl or aryl and R.sub.2 is aryl or alkoxycarbonyl, the aryl or aralkyl moiety bearing optionally one or more alkyl or alkoxy groups on the aromatic ring, provided that R.sub.1 and R.sub.2 are always different from each other, with a catalyst comprising an alkali metal and a polycyclic aromatic hydrocarbon until a sufficient amount of the optically active amine is racemized.
摘要:
Bisphenoxy carboxylic acid derivatives useful as an antiarteriosclerosis agent with good absorbability and low toxicity, which are novel compounds represented by the general formula, ##STR1## wherein R.sub.1 and R.sub.2 represent hydrogen atoms or lower alkyl groups and A preresents ##STR2## (wherein in case R.sub.3 is a hydrogen atom, R.sub.4 represents an amino-lower-alkyl group, an N-lower-alkylaminoalkyl group, a heterocyclic group, or a heterocyclic group-substituted alkyl group; or R.sub.3 and R.sub.4 may join through an intermediary hetero atom to form a heterocyclic group and if said hetero atom is a nitrogen atom, this nitrogen atom can bear a lower alkyl group as a substituent) or ##STR3## (wherein R.sub.5 represents a hydrogen atom, a hydroxyalkyl group or a derivative thereof, and R.sub.6 represents a hydroxyalkyl group or a heterocyclic group; or R.sub.5 and R.sub.6 may join to form a cyclic group, or may join through another intermediary hetero atom to form a heterocyclic group and if said hetero atom is a nitrogen atom, this nitrogen atom can bear a lower alkyl group as a substituent).
摘要:
Novel compounds having the formula, ##SPC1##Wherein R.sub.1, R.sub.2 and R.sub.3 are each independently hydrogen or a C.sub.1 -C.sub.4 alkyl; n is an integer of 4-6; and Y is hydrogen or a group of the formula ##EQU1## wherein R.sub.1, R.sub.2 and R.sub.3 are as defined above. These compounds are produced, for example, by reacting a bisphenolic compound of the formula, ##SPC2##With chloroform and a ketone compound of the formula,R.sub.1 -- CO -- R.sub.2in the presence of an alkali. Alternatively, they are produced by reacting the bisphenolic compound with .alpha.-halogeno- or .alpha.-hydroxycarboxylic acid derivative of the formula, ##EQU2## wherein R.sub.1, R.sub.2, and R.sub.3 are as defined above, and X is a halogen or hydroxyl. The novel compounds are anti-atherosclerosis agents useful for lowering elevated levels of cholesterol or lipids.
摘要:
A disaster recovery technology capable of achieving the high-speed FO and correctly reading the logs even if the unit of logs written in the main site is large is provided. In the disaster recovery system comprising a main site and a sub-site, when the writing in units of a log block consisting of a plurality of log records is performed in the main site and the logs are applied in the sub-site, the log blocks are read from the sub-storage to verify the consistency, and it is determined whether the reading process conflicts with the writing process through the remote copy operation when reading the logs. Then, only the log blocks in which the reading process does not conflict with the writing process as a result of the determination are applied to the database. Thereby, the logs are applied in the sub-site independently to recover the database.