baber/WOPTO huggingface dataset:
Patent BE-822893-A (BE)
Title: Chrome plating using trivalent chromium solns - esp for ABS plastics, with greater covering power and easier effluent removal
IPC: C25D3/06
Filed: 1974-12-03
Abstract: A chromium plating soln. based on trivalent Cr contains 0.1-1.2M Cr (III), 0.01-1M Br-, >=0.1M NH4, >=0.1M borate, formate or acetate in the ratio 0.5:1-3:1 w.r.t. Cr, and opt. >=0.5M Cl- or F-, and =5M SO2-4. Pref. concn ranges are 0.2-0.6M Cr (III), 0.05-0.3M Br-, 1-3M NH4, 0.5-1M borate, formate or acetate 1:1-2:1 w.r.t. Cr, 1.5-5M cl1, 0.5-4M SO4, with total (SO4 + Cl) 2.5-3.5. The soln. operates with pH 1-4, pref. 2-3.5, at 15-30 degrees C using carbon anodes and the plating range is 0.5-110 A/dm2. A cation, e.g. Fe, which codeposits with Cr may be added. The soln. is suitable for plating on ABS; it has greater covering power and easier effluent disposal than Cr(VI) solns.
Patent BE-903761-A (BE)
Title: Systeme d'echappement pour dispositifs de propulsion marins.
IPC: B63H20/24
Filed: 1985-12-02
Abstract: Un dispositif  de propulsion marin comportant un moteur à combustion interne à refroidissement par eau, un support de cadran (18) monté sur la traverse d'un bateau comportant une extrémité antérieure pourvue d'un orifice d'échappement (74) et de deux orifices de détente(76,78) à proximité chacun d'une paroi extérieure de l'orifice (74), une sortie d'échappement (60), une conduite la reliant à l'orifice (74), deux canaux de détente (84,86) entre chaque orifice (76,78) et l'atmosphère, un système reliant le moteur à l'orifice (74) et aux deux orifices (76,78) pour évacuer les gaz et l'eau en dehors du moteur.
Patent CA-1053446-A (CA)
Inventor: BAGLEY RODNEY D
IPC: B29C48/11
Filed: 1972-10-31
Granted: 1979-05-01
Abstract: METHOD AND APPARATUS FOR FORMING THIN-WALLED HONEYCOMB STRUCTURES                    Abstract of the Disclosure Apparatus for forming thin-walled honeycomb structures is provided in the form of an extrusion die having an outlet face provided with a gridwork of interconnected discharge slots and an inlet face provided with a plurality of feed openings extending partially through said die in communication with said discharge slots.  Extrudable material is fed to said die under pressure wherein the extrudable material flows longitudinally through the feed openings in the inlet face of the side and is directed thereby to the interconnected discharge slots communicat-ing with the outlet face, wherein a portion of the material flows laterally within such slots to form a continuous mass before being discharged longitudinally therefrom to thereby form a thin-walled structure having a multiplicity of open passages extending therethrough.
Patent CA-1036935-A (CA)
Inventor: JOHNSON LAVELL R
IPC: G01N23/00
Filed: 1974-03-12
Granted: 1978-08-22
Abstract: ABSTRACT OF THE DISCLOSURE      Method and apparatus for radioimmunoassay providing a con-tinuously reusable short cycle analytical system of particular use in biochemical analysis such as the determination of steriods, polypeptides and the like.  The method disclosed comprises admixing an unlabelled antigen sample with a known concentration of labelled antigen, bringing the mixture into contact with a mass of appropriate antibody that has been immobilized thereby to bind at least part of the mixed antigen to the antibody.  The amount of bound  and/or unbound labelled antigen is detected and counted and, by use of previously prepared standards, the unknown concentration of unlabelled antigen is found.  The still immobilized antibody in regenerated for immediate reuse by rinsing it with a selected eluting solution that is capable of breaking the antigen-antibody bond without altering the characteristics of the antibody.  Alternate ways of immobilizing the antibody are described.  Several suitable eluting solutions are disclosed.  Also disclosed is a novel appara-tus by which the new method may be automatically carried out an the antibody reused many times.  By proper substitution, the antibody and antigen may be reversed.
Patent CA-1037197-A (CA)
Inventor: MOORE ALBERT L
IPC: C08F259/00
Filed: 1974-11-18
Granted: 1978-08-22
Abstract: ABSTRACT OF THE DISCLOSURE        Elastomeric fluorinated copolymers in powder form, suitable in extrusion, injection-molding and similar fabri-cating techniques for the formation of shaped articles are obtained by copolymerizing in aqueous emulsion in the first stage of a two-stage polymerization process vinylidene fluoride with pentafluoropropene, hexafluoropropene, chloro-trifluoroethylene, or a perfluorinated alkyl vinyl ether and optionally with tetrafluoroethylene to at least about 90% monomer conversion to a polymer having a  melting point of less than about 60°C.; polymerizing in the same emulsion in the second stage at least one of the same monomers as in the first stage but in such proportions that the second stage polymer if made separately would have a melting point above 120°C.; flocculating the dispersion; and spray-drying at 121-177°C.
Patent CA-1038309-A (CA)
Inventor: SWANDER KENNETH D JR
IPC: F16D65/60
Filed: 1975-02-03
Granted: 1978-09-12
Abstract: AUTOMATIC BRAKE SLACK ADJUSTER              ABSTRACT OF THE DISCLOSURE        An automatic brake slack adjuster is provided which includes a first drive unit; a second drive unit; an intermediate shaft unit positioned therebetween, and a body member defining cavities to receive the drive units and intermediate shaft unit.          The second drive unit further includes a drive shaft having a worm rotatably mounted thereon.  A first clutch means operable in a first rotational direction is positioned between the worm and the drive shaft and a second clutch means operable in a second opposite rotational direction is positioned between the  gear and the body member.
Patent CA-1064160-A (CA)
Inventor: SWAIM RONALD L
IPC: H02K33/18
Filed: 1975-02-03
Granted: 1979-10-09
Abstract: ACTUATOR FOR A DISC DRIVE APPARATUS      Ronald L. Swaim John Cuda Timothy W. Martin Inventors ABSTRACT OF THE DISCLOSURE            This invention relates particularly to direct access data storage devices and, more particularly, to a disc drive wherein data is recorded on a rotating disc by means of a read/ write head movable to precise data track positions located on the disc surface.  For accurate positioning of the heads relative to the disc, an actuator is provided which is mounted on the drive by elastic bodies located at points near a plane passing through the center of gravity of the actuator to limit the transmission of vibratory forces from the actuator to the drive.
Patent CA-1051421-A (CA)
Inventor: JINNAI TOSHIO
IPC: C09K19/26
Filed: 1975-04-29
Granted: 1979-03-27
Abstract: Abstract of the Disclosure:           New nematic liquid crystal compounds with positive dielectric anisotrophy, represented by the formula   wherein R is n-butyl, n-pentyl, n-hexyl, n-heptyl or n-octyl group are obtained by condensing p-n-alkylnitrosobenzenes with p-cyanoanilines and oxidizing the resulting p-n-alkyl-p'-cyanoazobenzenes with peracetic acid.  Nematic liquid crystal compositions with positive dielectric anisotrophy, having a nematic liquid crystal phase over a broad temperature range are obtained by mixing two or more of p-n-alkyl-p'-cyanoazoxybenzenes of the above formula. Also, an useful nematic liquid crystal composition with positive dielectric anisotrophy which exhibits its nematic liquid crystal phase over a broad temperature range, including room temperature can be obtained by mixing at least one of Schiff base type or azoxy type compounds in a suitable ratio. The liquid crystals disclosed may be used for a torsion effect type display device which exhibits a nematic liquid crystal phase over a broad temperature range including room temperature.
Patent CA-1060858-A (CA)
Inventor: MAGIDSON HERBERT
IPC: A41C5/00
Filed: 1975-05-27
Granted: 1979-08-21
Abstract: ABSTRACT OF THE DISCLOSURE          A method and apparatus for fabricating a conical seamless bra pad preform for subsequent molding into a finished pad.  The material used is fiberfill or the like and a blank, cut from such a sheet, or from a sandwich of two sheets, is indented by a conical member which has pins spaced over the surface of the cone for engaging the material.  Variable thinning of the material is achieved by the action of the pins in engaging the material successively.  A second embodiment involves a series of coaxial rings to grasp the blank.  Non-uniform displacement of the ring-sets causes the desired uneven stretching of the blank.  Permeating the fiberfill sheet with cold acrylic resin prior to the curing of the preform in a mold counteracts deterioration of the bonding of the individual fibers which occurs during the intermediate drawing process.
Patent CA-1044377-A (CA)
Inventor: ABE MOTOAKI
IPC: H01L29/78
Filed: 1975-06-17
Granted: 1978-12-12
Abstract: ABSTRACT OF THE DISCLOSURE             A Metal Insulator Semiconductor (MIS) field effect device has an oxygen-doped polycrystalline silicon layer on the field portion in order to prevent an unwanted parasitic inversion layer. The oxygen-doped polycrystalline silicon layer contains oxygen in the range of 2 to 40 atomic percent.
Patent CA-1081652-A (CA)
Inventor: PHILLIPS DAVID C
IPC: C08G73/00
Filed: 1975-07-07
Granted: 1980-07-15
Abstract: ELECTROPOLYMERIZATION OF DIFUNCTIONAL      MONOMERS TO FORM POLYIMIDES                  ABSTRACT OF THE DISCLOSURE           Monomers having both an amino group and an anhydride or two carboxylic acid or salt groups are electropolymerized in solution.  In an alcohol solvent the polymer forms as a coating on the anode, and in an aprotic solvent the polymer remains in solution.  The polymer is cured to form a polyimide.
Patent CA-1061639-A (CA)
Inventor: GIORI GUALTIERO
IPC: B41M1/06
Filed: 1975-07-16
Granted: 1979-09-04
Abstract: "INTAGLIO PRINTING PLATE AND THE                   MANUFACTURE THEREOF"     ABSTRACT OF THE DISCLOSURE     An intaglio printing plate is prepared by coating a copperplate-engraved plate having a superficial chromium layer with an ink-accepting material such as a hardenable epoxy or acrylic resin, an enamel garnish, or a chemically or electrolytically deposited metal,and removing said layer from the non-grooved parts by: treatment in a ball-graining machine. The ink-accepting material remaining in the grooves forms concave recesses suitable for wet offset printing with the precision, complexity and fineness of a copperplate design.
Patent CA-1073903-A (CA)
Title: Analogues of prostanoic acids and process for their manufacture
Inventor: BECK GERHARD
IPC: C07C405/00
Filed: 1975-07-18
Granted: 1980-03-18
Abstract: ANALOGUES OF PROSTANOIC ACIDS AND PROCESS FOR            THEIR MANUFACTURE               Abstract of the disclosure:       The present invention relates to new analogues which do not occur naturally of prostanoic acids of the formula I                     I       The compounds of the invention have spasmogenic, broncho-dilatant and hypotensive properties.  Therefore, they can be used as medicaments.         This invention also relates to a process for preparing the compounds of the invention.
Patent CA-1036734-A (CA)
Inventor: BALTZER GARY L
IPC: H04M15/18
Filed: 1975-09-25
Granted: 1978-08-15
Abstract: SYSTEM FOR MEASURING THE DURATION OF A TELEPHONE CALL          Abstract of the Disclosure A system for use in a telephone exchange to measure the duration of a telephone call includes an electrical power source from which pulses of constant frequency are applied to first and second pulse generating circuits for generating pulses at selected frequencies representative of a call initial time rate and a call overtime rate, respectively.  Each of the pulse generating circuits can be programmed independently to generate pulses at different selected frequencies representative of different call time rates.  The pulses from the generating circuits are applied to a plurality of pulse counting circuits through respective pulse count control circuits.  At the beginning of a telephone call, one of the pulse counting circuits is seized by associated circuitry of the telephone exchange and the respective count control circuit first passes initial time rate pulses to the counting circuit while blocking overtime rate pulses.  When the counting circuit determines that a maximum initial time period for the call initial time rate has been reached, a signal from the counting circuit causes the control circuit to change state and to pass overtime rate pulses while blocking the passage of initial time rate pulses.  During the call the counting circuit performs the normal auxiliary control functions in the associated circuitry of the telephone exchange.
Patent CA-1043468-A (CA)
Inventor: YAMAMOTO YOUSUKE
IPC: H01L29/423
Filed: 1975-10-06
Granted: 1978-11-28
Abstract: ABSTRACT OF THE DISCLOSURE Disclosed is a semiconductor device which is similar in construction to a lateral bipolar transistor and performs functions similar to those of the latter.          A first embodiment of the semiconductor device has a construction which includes a first semiconductor region serving as a base region; second and third semiconductor regions respectively formed as by diffusion in the first semi-conductor region from the side of the major surface thereof to serve as emitter and collector regions, respectively; a fourth semiconductor region of low resistivity and of the same conductivity type as the first semiconductor region and formed as by diffusion in the first semiconductor region from the side of the major surface thereof to extend between the second and third semiconductor regions; first, second and third electrodes respectively deposited on the second, third and fourth semi-conductor regions to serve as emitter, collector and gate electrodes, respectively; and a fourth electrode electrically connected with the first semiconductor region to serve as a base electrode.          A second embodiment of the semiconductor device has a construction in which the second electrode of the abovesaid first embodiment of the semiconductor device is omitted but a sixth semiconductor region of the same conductivity type as the first semiconductor region is formed in the third semi-conductor region and a fifth electrode is deposited on the sixth semiconductor region to serve as a hooked collector electrode.     A third embodiment of the semiconductor device has a construction in which the first electrode of the abovesaid first or second embodiment of the semiconductor device is omitted and which is adapted to store a light signal in the PN junction between the first and second semiconductor regions.   Further, semiconductor apparatus is disclosed which has a construction that a plurality of semiconductor devices of the abovesaid third embodiment are formed on a common semi-conductor substrate to provide a photoelectric conversion unit of image pickup apparatus.
Patent CA-1072115-A (CA)
Inventor: FOULKS HAROLD C JR
IPC: C08L67/00
Filed: 1975-10-22
Granted: 1980-02-19
Abstract: ABSTRACT OF THE DISCLOSURE             Ester products useful as lubricants for structural resins are provided herein. The resins are derived from an aliphatic hydroxylic compound having 2 to 25 carbon atoms and 1 to 10 primary or secondary hydroxyl groups and a monocarboxylic acid selected from the group con-sisting of: (i) a mixed straight-chain aliphatic monocarboxylic acid obtained by the oxonization of a C22+.alpha.-olefin wherein at least 90% by weight of the olefins contain 22 or more carbon atoms, the mixed acid containing less than 30% by weight acids having fewer than 21 carbon atoms, less than 20% by weight acids having greater than 35 carbon atoms and 55% by weight or more C21-35 acids with the weight ratio of odd to even carbon content acids in the C21-35 range being between 1.5:1 and 10:1; and (ii) an .alpha.-alkyl branched aliphatic monocarboxylic acid having at least 25 carbon atoms obtained by the free radical addition of a short-chain aliphatic monocarboxylic acid having from 3 to 12 carbon atoms and an   -olefin containing 22 to 100 carbon atoms. The esters of this aspect of this invention provide excellent internal-external lubrication for PVC homopolymers and copolymers.
Patent CA-1055108-A (CA)
Inventor: LAI CHI S
IPC: F02P5/155
Filed: 1975-11-26
Granted: 1979-05-22
Abstract: AN ELECTRONIC SPARK TIMING ADJUSTMENT CIRCUIT          ABSTRACT    An electronically adjustable spark timing signal is provided for an internal combustion engine to be used in conjunction with a breakerless constant percent dwell output electronic ignition system.  A monostable multivibrator circuit uses two constant current sources, one of which is adjustable, to produce an electrical signal the pulse width of which, under static conditions, is representative of the predetermined amount of desired advance or retardation required for efficient engine operation at all speeds, the pulse width of the output signal also varies as a function of engine speed and provides automatic dynamic advance with increasing speeds.  This electronic timing adjustment signal is then combined, in a delay circuit, with the digital output of a constant percent dwell circuit to provide an adjusted spark timing signal which controls the operation of the ignition coil.
Patent CA-1044570-A (CA)
Inventor: URQUHART WILLIAM J
IPC: F15B15/14
Filed: 1975-12-16
Granted: 1978-12-19
Abstract: ABSTRACT OF THE DISCLOSURE The present invention provides a piston for use in a  hydraulic ram or other fluid operated device the piston having sealing means intended to prevent the passage of working fluid between the piston and a cylinder in which it moves, said sealing means consisting of an O ring or other sealing device arranged around the circumference of the piston and left and right hand intersecting helical channels formed over a length of the surface of the piston wall between the said sealing device and the end of the piston subject to pressure of the working fluid, the said helical channels acting to retain lubricating fluid and to provide a partial seal against the passage of working fluid between the piston and the cylinder, the sealing effect being completed by the said O ring or other sealing device.
Patent CA-1063702-A (CA)
Inventor: CHRISTIANSON CLINTON C
IPC: B60L11/18
Filed: 1976-01-26
Granted: 1979-10-02
Abstract: ABSTRACT OF THE DISCLOSURE         A propulsion system for an electrical vehicle including a linear proportional controller operable in a plurality of modes for operating a d.c. drive motor via powder derived from a propulsion battery.  Low speed operation is achieved in an armature control mode wherein the controller is interposed between the propulsion battery and the motor armature while the motor field is coupled directly across the battery.  High speeds are attained in a field control mode wherein the controller is interposed between the battery and motor field while the armature is coupled directly across the propulsion battery, thereby eliminating controller losses from the high current armature circuit. Switching between modes is achieved in a manner which minimizes stress on the switching elements.  The controller is also adapted to operate in a charger mode wherein unregulated d.c. power is fed to the controller which functions to regulate the charge provided to the battery.  Overall efficiency is increased by use of a dual chopper as a powder modulator element.  The circuit further includes protection means for controlling or preventing operation under conditions wherein circuit elements might be damaged.
Patent CA-1038838-A (CA)
Inventor: POOLE JOHN S
IPC: G06K15/22
Filed: 1976-02-06
Granted: 1978-09-19
Abstract: Abstract of the Disclosure A gas chromatograph system includes a central processor (CPU) and a printer-plotter.  The printer-plotter prints characters and plots data using a single 1 by 7 array of thermal resistors to perform both the printing and plotting operations in real time.  The system provides continuous and uniform traces despite changes in the plotting rate. Data from the chromatograph is temporarily stored by the CPU, then forwarded upon programmed command through a print-plot controller to the printer-plotter.  Data is plotted as it is received from the CPU.  As peaks in the data are detected, plotting is suspended temporarily without loss of data, and characters are printed adjacent to the peaks, thus annotating the peaks with digital data.
Patent CA-1051844-A (CA)
Inventor: MCCULLOUGH JOHN E
IPC: F03C2/02
Filed: 1976-03-16
Granted: 1979-04-03
Abstract: ABSTRACT OF THE DISCLOSURE         A scroll member is provided for use in scroll-type apparatus.  It is formed of a separate end plate having an involutely configured groove in the face thereof and a separate involute wrap which is seated in the groove.  The seating of the wrap in the groove may be such as to permit it to undergo small axial and radial excursions within the groove to impart compliance/sealing characteristics to the scroll member. Alternatively, the wrap may be rigidly mounted in the groove and, if desired, separate compliance/sealing means provided for the wrap.  The construction of scroll members according to this invention achieves a marked decrease in cost of the scroll members and of scroll-type apparatus incorporating them.
Patent CA-1053494-A (CA)
Inventor: GROOME ERNEST J
IPC: D21C1/00
Filed: 1976-05-20
Granted: 1979-05-01
Abstract: ABSTRACT OF THE DISCLOSURE      A nip roll is disclosed having an inner substantially rigid cylindrical member and an outer cover member of a generally incompressible substantially resilient material positioned about the inner member with reinforcing means embedded within the outer cover member having a tensile modulus greater than the modulus of the generally incompressible resilient material. The rein-forcing means are so oriented with respect to the inner member that upon positioning the roll in nipped relation with a rigid roll which is externally driven, depending upon the direction of rotation, portions of the outer cover member are displaced and recoiled at the entrance and exit to the nip to provide resulting forces on web materials passed therethrough, the forces being controllable for treating such web materials. Depending upon the direction of rotation, the web material will either be compacted or elongated.  A method is disclosed for producing the inventive nip roll.
Patent CA-1051989-A (CA)
Inventor: SHAFFER HOWARD R
IPC: H01R43/00
Filed: 1976-08-06
Granted: 1979-04-03
Abstract: ABSTRACT         An electrical connector assembly for terminating multiple conductor cable and, in particular, tri-lead cable, includes a housing having mating top and bottom members moulded from rigid insulating material and joined together along one edge by a hinge of resilient insulating material.  The housing members define therebetween a pair of contact cavities and at least one cable entry passage leading to the cavities.  Top and bottom contacts are inserted into the contact cavities of the respective housing members with portions of the contacts exposed to make an insulation piercing connection with the respective conductors of the cable. Both contacts have opposite end portions adapted to mate with further electrical terminating means.  The arrangement is such that adjacent conductors of the cable are displaced in opposite directions when the cable is terminated by means of the connector assembly.
Patent CA-1093498-A (CA)
Inventor: MCMULLEN ARTHUR G
IPC: B21J1/02
Filed: 1976-08-16
Granted: 1981-01-13
Abstract: ABSTRACT OF THE DISCLOSURE           A process for the production of coin blanks suitable for minting into coins includes providing metallic core pieces, each core piece having opposed, substantially planar faces and a common side edge.  The core pieces are loaded into a perfor-ated container which is placed in an electroplating bath.   A metallic cladding is placed on the core pieces, while moving the container angularly about a horizontal axis, until the metallic cladding has a thickness of at least about 0.05 mm on each face of each core piece and a thickness of at least 2 to 4 times the face thickness on the side edge of each core.