baber/WOPTO huggingface dataset:
Patent CA-1277152-C (CA)
Title: Herbicidal compositions
Inventor: TAKASE MASAYUKI
IPC: A01N57/20
Filed: 1986-12-04
Granted: 1990-12-04
Abstract: Abstract:        The invention provides a herbicidal composition which comprises, as the active ingredients, (a) 3-chloro-2-(4-chloro-2-fluoro-5-propargyloxyphenyl)-4,5,6,7-tetra-hydro-2H-indazole and (b) at least compound selected from N-(phosphonomethyl)glycine and its salts (glyphosate), DL-homoalanin-4-yl(methyl)phosphinic acid and its salts (glufosinate), 2-amino-4-[(hydroxy)lmethyl)phosphionyl] butyrylalanylalanine and its salts (bialaphos) and 1,1'-dimethyl-4,4'-bipyridinium ion and its salts (paraquat), together with an inert carrier or diluent.          The composition exerts a high herbicidal potency.
Patent CA-1277521-C (CA)
Title: Optical change-over switch
Inventor: GUNJI YASUHIRO
IPC: G02F1/1333
Filed: 1986-12-10
Granted: 1990-12-11
Abstract: Abstract A liquid crystal cell (30) for an optical changeover switch comprises a pair of transparent substrates (1), a pair of transparent flat electrodes (2) provided on the respective opposing surfaces of the substrates, orienta-tion control films (3) provided on the flat electrodes (2), a pair of comb shaped electrodes (33) respectively provided on the orientation control films (3), and a ferroelectric liquid crystal layer (4) confined between the substrates (1).  The optical incidence plane (31) to the cell (30) is so selected that the plane (31) is away from the helical axes (9) of the ferroelectric liquid crystal in the cell (30) by an amount somewhat greater than the tilt angle (.theta.t) of the ferroelectric liquid crystal.  The pair of flat electrodes (2) generate a first electric field (37a) perpendicular to the layer (32) and orient the long axes of the ferroelectric liquid crystal molecules into a first orientation (35a') parallel to the layer (32) to induce a first refractive index which causes simultaneous reflection of an unpolarized light beam (7 + 8) with a predetermined incidence angle (.theta.).          The pair of comb shaped electrodes (33) generate a second electric field (37b') parallel to the layer and perpendi-cular to the helical axes (9) and orient the long axes of the molecules into a second orientation (35b') not paral-lel to the layer (32) to induce a second refractive index which causes simultaneous transmission of the unpolarized light beam (7 + 8) with the predetermined incidence angle (.theta.) .
Patent CA-1286576-C (CA)
Title: Varied heating rate solution heat treatment for superalloy castings
Inventor: AULT EARLE A
IPC: C22F1/10
Filed: 1987-03-24
Granted: 1991-07-23
Abstract: Abstract Varied Heating Rate Solution Heat Treatment for Superalloy Castings Methods for heat treating cast, nickel base superalloy articles are described.  According to the invention, the articles are heated to progressively higher temperatures greater than the gamma prime solvus temperature and less than the incipient melting temperature.  The incipient melting temperature is increased due to homogenization of segregate phases, while at the same time, the gamma prime goes into solution.  The rate at which the temperature is increased closely approximates the rate at which the incipient melting temperature increases due to homogenization.
Patent CA-1291520-C (CA)
Title: Electronic air filtration system
Inventor: JOANNOU CONSTANTINOS J
IPC: B03C3/66
Filed: 1987-04-22
Granted: 1991-10-29
Abstract: ABSTRACT   In an air filtration system of the charged media type, a disposable air filter cartridge comprising first and second dielectric fibrous filter pads; and an electrically conductive screen sandwiched therebetween; said filter pads overlapping and extending outwardly beyond the perimeter of the screen to form a marginal border surrounding the screen.  The cartridge may be provided with outer conductive screens or the frame within which the cartridge is housed may provide the outer screens.  A variety of cartridges constructed in accordance with embodiments of the invention is disclosed, as is a variety of cartridge and frame combinations.  The disposable cartridge of the invention obviates the necessity for replacing individual pads as in prior art systems and thus facilitates servicing of the filtration medium by simply replacing the cartridge.
Patent CA-1302015-C (CA)
Title: Process for the printing of shaped articles derived from aramid fibers
Inventor: HUSSAMY SAMIR
IPC: D06P1/92
Filed: 1987-05-13
Granted: 1992-06-02
Abstract: ABSTRACT OF THE DISCLOSURE     A process of printing a predetermined pattern on a poly(m-phenyleneisophthalamide)-containing textile fabric comprising the successive steps of: (a) applying a print paste, composed of a highly polar solvent selected from the group consisting of dimethylsulfoxide, N,N-dimethylacetamide, N-methyl-2-pyrrolidone, and mixtures thereof, the polar solvent adapted to swell the aramid fiber and introduce a dyestuff therein, at least one organic dyestuff that is soluble in the polar solvent, a print paste thickening agent compatible with both the polar solvent and the dyestuff, water and optionally at least one flame retardant, in a predetermined pattern onto the surface of the aramid textile; and (b) drying and curing the thus printed fabric at an elevated temperature sufficient to permeate and fix the dyestuff molecules inside the aramid fibers.
Patent CA-1340331-C (CA)
Title: Hmg-coa reductase inhibitors
Inventor: INAMINE EDWARD S
IPC: C07D309/30
Filed: 1987-06-19
Granted: 1999-01-26
Abstract: Novel   3-hydroxy-3-methylglutaryl-coenzyme   A (HMG-CoA)    reductase    inhibitors    are    useful    as antihypercholesterolemic  agents  and are  represented by the following general structural formulae (I) and (II):     (see fig. I) (see fig. II)
Patent CA-1283774-C (CA)
Inventor: AZAMI KATSUMASA
IPC: B21K21/06
Filed: 1987-07-03
Granted: 1991-05-07
Abstract: PISTON RING MANUFACTURING METHOD          ABSTRACT OF THE DISCLOSURE       A method for manufacturing a piston ring for use in a refrig-erant compressor is disclosed. The method includes the steps of disposing the piston ring in an annular groove which is formed on one end surface of a fixed holder; and pressuring the piston ring in the groove by a lower end surface of a press until the lower end sur-face of the press contacts the upper end surface of the fixed holder. At least one projection formed on either the fixed holder or the press contacts the piston ring. A plurality of grooves are thereby formed on one end surface of the piston ring as the pressing opera-tion progresses.
Patent CA-1312769-C (CA)
Title: Hydrophilic plasticizing system and chewing gum containing same
Inventor: DOKUZOVIC ZDRAVKO
IPC: A23G4/10
Filed: 1987-07-08
Granted: 1993-01-19
Abstract: ABTRACT OF THE DISCLOSURE A hydrophilic plasticizing system which comprises a solution wherein gelatin is dissolved in a solution of sorbitol, glycerin and water and a chewing gum composition, which comprises: a chewing gum base, sweetening agent and the novel hydrophilic plasticizing system.     gn1k808.6xt a-2
Patent CA-1297479-C (CA)
Title: Process for preparing 6-amino-1,2-dihydro-1-hydroxy-2- imino-4-piperidinopyrimidine
Inventor: VEDRES ANDRAS
IPC: C07D295/12
Filed: 1987-07-10
Granted: 1992-03-17
Abstract: PROCESS FOR PREPARING 6-AMINO-1,2-DIHYDRO-1-HYDROXY-Abstract The invention relates to a new process for preparing 6-amino-1,2-dihydro-1-hydroxy-2-imino-4-piperi-dinopyrimidine of the formula (I),              (I) which comprises reacting a pyrimidine derivative of the general formula (II),                 (II) wherein R1        stands for hydrogen or a -?-R group, wherein R      means a C1-6 alkyl group or an aryl group optionally substituted by halogen;          R2      stands for a hydroxyl group or an -O-?-R group, wherein R is as defined above; and X       represents chlorine or bromine or an optionally mono- or polysubstituted arenesulfonyloxy group, with the proviso that R2 is different from a hydroxyl group when R1 stands for hydrogen, with piperidine and hydrolyzing, optionally after isolation, the thus--obtained 4-piperidino derivative of the general formula (III),                 (III) wherein R1 and R2  are as defined above.
Patent CA-1303939-C (CA)
Title: Detergent granules and a process for their preparation
Inventor: ANDERSON ROBERT W
IPC: C11D3/08
Filed: 1987-11-02
Granted: 1992-06-23
Abstract: ABSTRACT    Detergent powders built with alkali metal carbonate and containing both sodium silicate and a calcium carbonate seed crystal material such as calcite are prepared by granulating a carbonate/silicate base powder with the seed crystal material, ideally in the presence of a liquid binder such as sucrose solution.
Patent CA-1285385-C (CA)
Title: Straightedge
Inventor: PAN SHYH C
IPC: B43L7/027
Filed: 1987-12-01
Granted: 1991-07-02
Abstract: ABSTRACT      A  transparent  straightedge  with  two  L-shaped slots, a multiplicity of vertical and horizontal scales running  adjacent  to and parallel to  the  slots,  and reference  arrows.   The L-shaped slots are exactly  90 degrees.  Center reference scales in the center portion running vertically.   The reference arrows line up with the slots.  Opposing scales and center reference scales are all in alignment.
Patent CA-1292921-C (CA)
Title: Method and apparatus for treating hypertrophy of the prostate gland
Inventor: ROSENBLUTH ROBERT F
IPC: A61F2/91
Filed: 1987-12-08
Granted: 1991-12-10
Abstract: METHOD AND APPARATUS FOR TREATING HYPERTROPHY OF THE PROSTATE GLAND    Abstract of the Disclosure Disclosed is a method and apparatus for treatment of hypertrophy of the prostate gland.  The apparatus comprises an expansion catheter having an expandable tubular stent associated therewith, adapted for transurethral insertion via the external  opening of the urethra and placement within a stenotic region of the urethral lumen caused by a hypertrophied  prostate  gland.    Force  exerted  by  the expansion catheter upon the tubular expandable stent causes an opening of the  lumen within the prostatic urethra. Removal of the expansion catheter,  leaving in place the expanded tubular stent, ensures a long-term patency of the urethral  lumen.    Also  disclosed  is  an  apparatus  for reducing in diameter and thereafter removing a previously implanted and expanded tubular stent made  and inserted in accordance with the present invention.
Patent CA-1295101-C (CA)
Inventor: SALAZAR SUMORFIN
IPC: E05D7/10
Filed: 1987-12-09
Granted: 1992-02-04
Abstract: ABSTRACT      A lift-off vehicle door hinge is formed of a pair of interleaved stampings having pivot pins received in bearings in relatively pivotally movable parts of the stampings and an abutment tab is formed as one of the stampings to prevent lift-off separation when the stampings are arranged in a position effecting closure of the vehicle door.  The pivot pins include a first pivot pin member fixedly secured to an upper portion on a body mounting plate or door mounting plate and which pin extends downwardly therefrom; a second pivot pin member is fixedly secured to a lower portion of the other of the body mounting or door mounting plates and extends upwardly therefrom; a bearing device is fixedly secured to facing portions of the mounting plates in registration with the pivot pins to permit insertion of the pivot pins into the bearing device to surround and support the pivot pins for pivotal movement; an abutment is formed on the body mounting plate or door mounting plate to prevent separation of the mounting plates by vertical displacement when the plates are in the vehicle door closed position.
Patent CA-1288750-C (CA)
Inventor: HORAN GERALD P
IPC: F16B2/10
Filed: 1987-12-17
Granted: 1991-09-10
Abstract: ADJUSTABLE HEIGHT CLAMPING STAND            ABSTRACT    A clamping system for use in supporting automotive vehicles in secured relation above a floor surface includes an adjustable height pedestal means having a base member with a ram member entered in sliding relation therein.  Laterally inclined convergent internal side walls serve as guides to keep in mutually centered relation a pair of vertically ex-tending mating faces of the base member and the ram member.          These mating faces have laterally extending  tooth members standing proud of their surfaces in mutually interengageable relation to lock the members together against vertical dis-placement.   Clearance within the base member sufficient for the lateral disengagement of  the respective tooth members permits vertical adjustment of the ram member relative to the base.   Jacking screws extending laterally within the base serve to hold the ram member in tooth engaged relation with the mating face of the base, in a locked, pre-set position of a predetermined height.   One or more clamps of the scott clamp type are used for securing the vehicle by its under-side.   In the case of a single clamp it is secured directly to the ram.   Alternatively,  a pair of scott clamps can be mounted in offset mutual force-balancing relation on a bal-ance beam.   The balance beam in one embodiment is pivotally attached at its centre, to the ram.  The pivotal attachment connection can be locked by way of a tapered joint.   In a further embodiment the beam is rigidly secured to the ram.
Patent CA-1297904-C (CA)
Title: Process for the separation of sulphuric acid from aqueous mixtures thereof with paraffin-sulphonic acids
Inventor: BORGARELLO ENRICO
IPC: C07C309/03
Filed: 1987-12-23
Granted: 1992-03-24
Abstract: 1.     "PROCESS  FOR  THE  SEPARATION  OF  SULPHURIC  ACID  FROM AQUEOUS MIXTURES THEREOF WITH PARAFFIN-SULPHONIC ACIDS"                         Abstract The  mixtures from  which sulphuric  acid must be separated  according  to the present invention are  those which  derive  from the  sulphoxidation  of  (C12-C18)-n-paraffins with SO2 and O2 in the presence of water and of U.V. light at a temperature comprised within the range of from 25 to 50 C,  after the removal of n-paraffins, which separate  spontaneously,  and  of SO2 excess,  and  after being submitted to one of the following treatments: a) dehydration,   by  known  systems   of  the  residual mixture, at least until said mixture becomes cloudy (due to the formation of a biphasic system), extraction of not-sulphoxidated paraffins from the dehydrated, cloudy mixture, or from the supernatant phase of the biphasic system, with supercritical CO2, at a temperature comprised within the range of from 32°C to 80°C, under a pressure comprised within the range of from 75 to 350 bars, and with a CO2/paraffin-sulphonic acids weight ratio of from 1/1 to 50/1. b) addition of H2SO4 to the residual mixture, at least until said mixture becomes cloudy (due to the formation of a biphasic system), extraction with 2. supercritical CO2, from the cloudy mixture, or from the supernatant phase of the biphasic system, of the residual paraffins under such conditions as shown under (a); c) addition to the residual mixture of an aliphatic alcohol containing a number of carbon atoms lower than, or equal to, 4, preferably isopropanol, until a biphasic mixture is formed, extraction from the biphasic mixture of the residual paraffins, with supercritical CO2, under such conditions as reported under (a).      The mixture of paraffin-sulphonic acids free, or substantially free, from paraffins obtained by means of the above disclosed treatments from (a) to (c)  (the "refined mixture") still contains, besides the paraffin-sulphonic acids, a considerable amount of H2SO4.      In order to remove said sulphuric acid, according to the process of the present invention, the refined mixture, possibly diluted with water, is mixed with one or more halogenated solvents, the separation being obtained of water and sulphuric acid from the refined mixture, to the total mixture (with the two phases) a cosolvent is added, which is constituted by alcohols or ethers, with the separation being obtained of a phase constituted by H2O and H2SO4, which is removed.      The residual organic phase, practically free from sulphuric acid, is submitted to the removal of solvents and cosolvents by means of conventional techniques.
Patent CA-1298125-C (CA)
Inventor: ROLLET GEORGES
IPC: G03D15/00
Filed: 1988-03-10
Granted: 1992-03-31
Abstract: An apparatus for marking the back of a photographic proof with data corresponding to data on the corresponding negatives in a system where the negatives are on a film strip having at each negative an edge notch and the proofs are on a print strip having spaced cutouts comprises a film drive for advancing same from the upstream to the downstream drive roll past a read location. A sensor detects the film-advance speed and generates an output corresponding thereto. A print drive advances this strip past a write location. Another sensor detects the paper-advance speed and generates an output corresponding thereto. A controller is connected to at least one of the drives and to the sensors for synchronizing displacement of the strips past the respective locations such that each proof is at the write location generally when the respective negative is at the read location. Another detector generates an output each time a notch is in a predetermined position at the read location. Another read head at the read location triggered through the controller by the notch detector each time the exposure data of the respective negative is in the read location reads this data. Another detector generates an output each time a cutout is in a predetermined position at the write location. A write head at the write location triggered through the controller by the cutout detector each time the print is aligned with the write head marks the back of the print strip with the exposure data read by the read head on the respective negative.
Patent CA-1328761-C (CA)
Inventor: HALL KEVIN P
IPC: G03C1/035
Filed: 1988-03-31
Granted: 1994-04-26
Abstract: A B S T R A C T             HIGH CONTRAST PHOTOGRAPHIC MATERIALS     Pepper fog may be reduced in high contrast photographic materials comprising silver halide emulsion in association with a hydrazine by the presence of at least 0.001 mole per mole of silver halide of a water-soluble bromide and/or water-soluble chloride.          Suitable water-soluble bromides and chlorides are alkali metal bromides and chlorides which are advantageously added to the silver halide emulsion after physical ripening and washing.
Patent CA-1290606-C (CA)
Title: Exposure control device
Inventor: HORIGUCHI MASASHI
IPC: G03B27/73
Filed: 1988-04-06
Granted: 1991-10-15
Abstract: ABSTRACT OF THE DISCLOSURE          An exposure device of a color copying apparatus has a filter holding frame mounting a filter plate provided with color filter layers and a transparent section and  a pair of aperture plates for forming a variable aperture. The filter holding frame is movable in one direction perpendicular to an exposure light path to selectively place the filter layer and transparent section into the exposure light path. The aperture plates are movable close to and away from each other in a direction perpendicular to the one direction and the exposure light path so as to vary the size of aperture formed thereby. Between the filter holding frame and the pair of aperture plates there is a mechanism comprising pins and cam grooves for cooperating the filter holding frame and the aperture plates. The cam groove comprises a straight cam section which is provied to place the pair of aperture blades out of the optical path so as to maintain the maximum size of the variable aperture and extends in a direction in parallel with the direction in which the filter holding frame moves and an inclined cam section which is provided to bring the pair of the aperture blades into the optical path so as to vary the size of the variable aperture and inclined at an angle with respect to the straight cam section.
Patent CA-1316945-C (CA)
Title: Process for the condensation of alcohols
Inventor: PRUETT ROY L
IPC: C07C29/34
Filed: 1988-06-08
Granted: 1993-04-27
Abstract: ABSTRACT OF THE DISCLOSURE          Branched  alcohol   are  prepared  in  the  Guerbet condensation    reaction    by   reacting   C1-C20   primary alcohols  in  the  presence  of a catalyst system comprising platinum  supported  by  high  surface area activated carbon and  potassium  or  sodium hydroxide.  Very small amounts of catalyst  have  been  found  effective  at 175°C to 210°C in providing  high conversions to the condensed alcohol product of about 85% in a 1-5 hour reaction time.
Patent CA-1323015-C (CA)
Title: Method of producing fine particles
Inventor: ASKEW HERBERT F
IPC: B02C17/00
Filed: 1988-07-07
Granted: 1993-10-12
Abstract: ABSTRACT       METHOD OF PRODUCING FINE PARTICLES            This  invention  relates  to  a  method  of  reducing  the particle size of solid particles and is applicable to the production of very fine particles of a wide variety of solids, including relatively hard solids.            The method comprises milling a liquid suspension of solid particles in an agitated media mill, pumping the milled suspension through a particle size classification device to separate the slurry into a coarse fraction and a fine fraction, the particles of the coarse fraction having a greater median particle size than the particles of the fine fraction,  recycling the coarse fraction from the particle size classification device to the input of the mill, and recycling the fine fraction by pumping it to the classification device, wherein recycling of both coarse and fine fractions are continued until solid particles of the desired reduced particle size are produced.            Preferably a single classification device and a single mill can be used, and particles having a median particle size  of 0.3 microns  or  less and  a  relatively narrow particle size distribution can be produced, even using a hydrocyclone as the classification device.
Patent CA-1277802-C (CA)
Title: Uni-piece face protector
Inventor: RACINE JACK
IPC: A41D13/00
Filed: 1988-07-18
Granted: 1990-12-18
Abstract: ABSTRACT       In equipment for the protection of the eyes and face, it is known to have either goggles or safety glasses that protect the eyes from dust or flying debris, or a face shield that runs from the chin to the forehead.  Normally, both the goggles or safety glasses and face shield are made of clear, flexible,  shatter  proof  plastic  to  allow  for  maximum visability.  As well, the eye glasses, goggles or face shield are sometimes tinted to provide the wearer protection from the intense light produced from welding operations.  However, seldom are both gogles and a face shield worn together. In this invention, the goggles and face shield are combined into one molded unit, and the face shield is extended below the chin of the wearer down to the neck.   Where necessary, the goggles and shield before the wearer's eyes can be tinted to provide  protection  to  the  eyes  from  the  intense  light produced from welding.  The one piece unit is secured to the wearer by the standard head band currently used  for  face shields.
Patent CA-1309076-C (CA)
Title: Support for bass drums
Inventor: HOSHINO YOSHIHIRO
IPC: G10D13/02
Filed: 1988-09-07
Granted: 1992-10-20
Abstract: ABSTRACT OF THE DISCLOSURE           A bass drum support to position the drum beating spot at a desired height, to prevent stress at the connection of the drum to a foot pedal operated drum beater and to minimize transmission of vibration from the drum body to the support and the foot pedal. A front support leg is supported at the center of the front end of the body of the drum through a vibration absorption seat, made for example, of rubber.  A pair of rear support legs extend to the rear part of the drum body and are resilient.  The lengths of the legs are adjustable.  The rear legs are inclined forwardly of the drum body.  Clamping of the front end of the drum by the drum beater pedal assembly is avoided.