Abstract: The printer comprises a solid or liquid ink jet head 100 arranged to print one dot at a time on paper running over a platen 80. The head is carried by a carriage 48 movable transversely with simple harmonic reciprocating motion. In order to reduce the effect of inertial forces when the carriage reverses its movement, the drive is effected by an eccentric peg 70 on a disc 276, the peg engaging in a guide slot 54 of the carriage perpendicular to the direction of reciprocation. An eccentric can track 71 in the disc engages a peg 92 on a counterweight 90 for counterbalancing the inertial forces of the carriage. In order to synchronize the printing operation with the carriage movement, an optical strobe disco 258 is rigid with the disc 276 and has slots 258 disposed at a pitch varying according to the harmonic motion. The platen 80 in rotated intermittently by a helical cam 277 carried by the disc 276 and a peg wheel 280, 281.

Abstract: A refrigerant compressor having pistons reciprocated in respective cylinders by a wobble plate driven by an input rotor which is secured on a drive shaft, in which improved refrigerant gas flow within the housing is achieved. A balance hole is provided for returning the blow-by gas, which is leaked from the cylinders through the gaps between the cylinders and pistons to the crank chamber, to the compressor suction chamber from the crank chamber. The balance hole comprises a first fluid passageway formed in a front end plate and a second fluid passageway connected between the first fluid passageway and the suction chamber. One end of the first fluid passageway opens into a hollow portion formed on a axial end surface of the input rotor. The rotor is formed with at least one opening at its outer peripheral surface which communicates between the crank chamber and the hollow portion.

Abstract: A process for removal of nitrogen oxides and sulfur oxides from waste gases by contacting the waste gases with a particulate material comprising an alkaline earth based absorbent for sulfur oxides. Essential features are a reaction temperature of 85.degree.-145.degree. C., a maximum value of 3 for the ratio of nitrogen oxides to sulfur oxides, and the presence of oxygen and moisture. In its preferred form the process comprises a spray drying-absorption reaction followed by particle separation in a bag house. Removal efficiency is improved by the presence of minor amounts of sodium sulfite together with the alkaline earth based absorbent. Also a special conveyance of material may be applied to improve efficiency.

Abstract: A process for simultaneous removal of sulfur oxides (SO.sub.x) and nitrogen oxides (NO.sub.x) from gaseous mixtures (such as flue gases and industrial waste gases) containing them which comprises contacting the gaseous mixture with a particulate alkaline earth hydroxide and reaction products of the gaseous mixture and the hydroxide maintained in a moving bed reactor (preferably a fluid bed reactor) at a temperature of about 85.degree. C. to about 150.degree. C. in the presence of water vapor and oxygen and in the substantial absence of liquid water. A baghouse or other particle removal means preferably is employed to extract solid material such as fly ash and reaction products from the gaseous mixture being treated and to further capture unreacted SO.sub.x /NO.sub.x.

Abstract: A recording and reproducing system which uses a recording medium having a plurality of information recording tracks for recording image information. And at least one index recording track is located on the recording medium for recording index information. The index recording track is located substantially at the center of the recording medium and extends length wise of the recording medium in the direction of movement of this recording medium. Accordingly, the recording medium of the present invention eliminates the adverse effect of the drop-out and reduces the period of time required to search for the index information and reproduce image information.

Abstract: In a method of formaldehyde determination by measuring the fluorescence of a fluorescent substance formed by allowing a formaldehyde-containing solution to react with a reagent capable of forming said fluorescent substance from formaldehyde, the improvement comprising measuring the fluorescence in the presence of a serum albumin.

Abstract: In a scroll type fluid compressor having an orbiting scroll member and a fixed scroll member which form at least one pair of outer fluid pockets and a central pocket therebetween for fluid compression, the axial end surfaces of each spiral element of the scroll members have a groove along the spiral curve. At least one closed portion is located along the groove to block fluid flow in the groove. A seal element is loosely fitted in the groove. During operation the compressed fluid flows into the groove to urge the seal element against the end plate of the opposite scroll member so that the axial sealing between the spiral element and the end plate is assured without leakage of fluid along the groove. Also, the closed portion is located along the spiral element at the location where the line contact point where the outer fluid pockets and the central pocket merge to prevent back pressure changes from causing excessive wear of the seal element.

Abstract: This relates to electric arc discharge apparatus including at least two pair of electrodes and a single power source which comprises a multi-phase transformer, arc stabilization means and two or more rectifier bridges. Each rectifier bridge provides a pair of electrical power outputs to supply power to a respective pair of electrodes.The invention enables the multi arc system to be employed using a single power source and is of particular use in heating gas to be used in the oxidation of titanium tetrachloride for the production of titanium dioxide pigments.

Abstract: A manufacturing tool for finishing a preformed scroll for use in a scroll type fluid displacement apparatus is disclosed. The tool includes a working member having an end plate and a first involute element extending from one end surface of said end plate. A cutting edge extends along the inner side wall of an axial end of the first involute, and the end plate has a plurality of arc shaped holes along the outer side wall of the first involute element. A second involute element is rotatably coupled to the working member and interfits with the first involute element in a disposition to define a radial gap between the first and second involute elements. A cutting edge extends along the outer side wall of a first axial end of the second involute. A plurality of pins project axially from the other axial end of the second involute element and penetrate through the arc shaped holes. A rotatable member has a plurality of holes extending in the axial direction.

Abstract: The electrophotographic recording element comprises a charge generator compound formed from aniline sulphonephthelein derivatives, in which at least one phenyl ring comprises an amino group substituted by an aromatic or heterocyclic group. The recording element may consist of an electrically conducting support on which a layer is deposited containing the charge generator compound dispersed in a resin, then covered in its turn by a further electric charge transporter layer containing an oxadiazole derivative in solid solution in a resin. The recording element has high sensitivity to luminous radiation over a range extending from visible radiation to infrared, and can consequently be used in normal copying machines and especially in laser printers operating with a wavelength up to about 850 nm.

Abstract: The apparatus comprises a reversible conveyor disposed between a deflection station and an access slot. The deflection station allows the dispensing of an empty envelope from a magazine 11 towards the conveyor and the deposition of an envelope containing valuables from the conveyor into a drawer. The apparatus further comprises a printing device at an intermediate position along the length of the conveyor for printing data serially on the envelope during its transfer to the drawer. This is disposed in a safe and is of the sealed type, including two motor driven rollers for inserting the envelope into the drawer. The rollers can be locked in such a way as to close the access to the drawer when the drawer is open. The apparatus is controlled by a microprocessor in two way communication with a central control unit of the apparatus.

Abstract: A universal intraocular lens that may be implanted in an eye, in an anterior chamber, in a posterior chamber and in any size eye chamber wherein a tangential flexible strand is attached to a lens at one end and the other free end is formed into a snag resistant ring, or disc which is approximately circular to avoid injury to delicate eye tissue during implantation, centration or removal of said lens.

Abstract: A scroll-type fluid compressor unit including a housing having a fluid inlet port and fluid outlet port and a fixed an an orbiting scroll member within the housing. Each scroll member has an end plate and a spiral element which are maintained angularly and radially offset so that both spiral elements interfit with line contacts between the spiral curved surfaces to define moving sealed off pockets. A thrust supporting means is engaged with a side surface of a portion of the orbiting scroll member for providing axial thrust support. An axial pushing means such as a spring-biased rod is engaged with the orbiting scroll member for pushing the orbiting scroll member against the thrust supporting means from the side of the orbiting scroll member which faces the fixed scroll member, so that axial slant of the orbiting scroll member is minimized.

Abstract: A fluid displacement apparatus, in particular, a compressor unit, is disclosed. The apparatus includes a housing having a front end plate member and a fixed member and an orbiting piston member. The members interfit to make a plurality of line contacts to define at least one pair of sealed off fluid pocket. A driving mechanism, including a drive shaft is disposed within the housing and is connected to the orbiting piston member to effect the orbital motion of the orbiting piston member by the rotation of the drive shaft. The front end plate member is comprised of a front end plate portion in which is formed an opening for passage of the drive shaft, and an annular sleeve portion extending from a front end surface of the front end plate portion for surrounding the drive shaft. The drive shaft is rotatably supported by two bearing means which are disposed within the front end plate member.

Abstract: A clock for automatically indicating the time of day, the data of the year, the approximate time of sunrise and sunset, the approximate hours of darkness and daylight, the positions of the sun, Mercury, Venus, the earth's moon and phases of the moon, the sign of the Zodiac and degrees of arc of the sign of the Zodiac which the earth is in, all relative to the earth in a geocentric model. The clock includes a center hub representative of the earth, about which an hour disk rotates one revolution clockwise per day, a superposed data disk, an hour pointer and data pointer for indicating the hour and calendar data. The clock further includes a cam lever that oscillates about a pivot point in response to movement about a stationary cam at one end for automatically rotating Venus and Mercury indicators about a sun indicator, and automatically rotating a moon indicator about the center hub. Sun, Mercury, Venus indicators also rotate about the center hub.

Abstract: The system comprises at least one teleprinter station (1) connected to an exchange (3) by means of a transmission-reception line (2) and comprising a polarity detector (31) for the line circulating current, and a device (30) for reversing the connection of the line wires. If the wires erroneously become reversely connected following maintenance work on a line of single current type, then false call and conversation signals are generated which automatically trigger a checking operation in which the polarity detector is suitably examined under control of a ROM routine E controlling a CPU 84. If the current is found to be the reverse of the correct current, the reversing device is operated in order to reverse the polarity of the connection. In contrast, in the case of a double current line, the reversing device is operated when current is absent in the reception line, thus indicating an erroneous line connection. If the line current interruption is prolonged, a warning device (28) is activated.

Abstract: A port proximate to an automotive oil filter, and a closure therefor, used to precharge a newly installed oil filter with oil. The port may be located either in an adaptor mounting plate, which is located between the filter and the engine block, or in the engine block itself. The port is in fluid communication with the filter, allowing a newly installed filter to be precharged with oil to minimize engine wear.