baber/WOPTO huggingface dataset:
Patent CA-1286250-C (CA)
Title: Silicone milking unit
Inventor: KUPRES STEVEN J
IPC: A01J5/08
Filed: 1987-03-13
Granted: 1991-07-16
Abstract: ABSTRACT OF THE DISCLOSURE         Disclosed herein is a teat cup assembly for use with a silicone liner. The one piece shell for the teat cup assembly has an integral peripheral protecting wall which projects beyond the end of the cylindrical shell wall and forms a recess for receiving the cuff of the liner. The flange protects the end of the inflation from damage caused by impact with the floor or other articles in the milking parlor. No mechanical parts are required to maintain the liner and assembly in the shell.
Patent CA-1289606-C (CA)
Title: Puffer type electrical circuit breaker having a high dielectric withstand
Inventor: SOBOUL RAYMOND
IPC: H01H33/24
Filed: 1987-03-26
Granted: 1991-09-24
Abstract: ABSTRACT            PUFFER TYPE ELECTRICAL CIRCUIT BREAKER HAVING A HIGH DIELECTRIC WITHSTAND            The invention consists in improving the dielectric withstand of a puffer circuit breaker having a main circuit arranged side by side with an arcing circuit inside a sealed insulating casing filled with an insulating gas SF6.            The disconnection area arranged between the main contacts when the main circuit opens is located facing the breaking gap between the arcing contacts. The fixed main contact and the fixed arcing contact are at the potential of the upper terminal, being located at appreciably the same level on either side of the longitudinal axis of the casing.            Refer to figure 1.
Patent CA-1281478-C (CA)
Title: Heat stable fluorinated polyorganosiloxane compositions
Inventor: BENDITT KATHLEEN F
IPC: C08L83/07
Filed: 1987-06-05
Granted: 1991-03-12
Abstract: HEAT STABLE FLUORINATED POLYORGANOSILOXANE COMPOSITIONS                    Abstract Polyorganosiloxane gels exhibiting a resistance to discoloration and hardening at temperatures of 100°C and above can be prepared by the reaction of a polydiorgano-siloxane containing silicon-bonded fluorinated hydrocarbon radicals with an organohydrogensiloxane containing at least three silicon-bonded hydrogen atoms per molecule in the presence of a platinum containing catalyst.  The resistance to heat induced hardening and discoloration is achieved by preparing the polydiorganosiloxane by the ammonia catalyzed polymarization of at least one cyclic fluorine-containing diorganosiloxane followed by reaction of the resultant silanol terminated polymer with a hexaorganodisilazane containing a vinyl radical bonded to each of the two silicon atoms.       The reactants preferably contain 3,3,3-trifluoro-propyl radicals to achieve a resistance to softening and/or solubilization of the cured gel in the presence of hydrocarbon fuels.
Patent CA-1279088-C (CA)
Title: Developing unit for an electro-photographic apparatus
Inventor: HINO TOSHIO
IPC: G03G15/09
Filed: 1987-06-12
Granted: 1991-01-15
Abstract: ABSTRACT         A developing unit for an electro-photographic apparatus is described, including a toner concentration sensor provided between a paddle roller and a developing roller near the bottom of the casing.  The sensor generates a toner concentration signal with high sensitivity but without substanial fluctuation.  In contrast, the sensor in conventional developing units is located above the developing roller on a doctor blade and this gives rise to a fluctuating output signal.
Patent CA-1320269-C (CA)
Title: Magneto-optic recording structure and method
Inventor: MUCHNIK BORIS J
IPC: G11B7/00
Filed: 1987-07-08
Granted: 1993-07-13
Abstract: ABSTRACT OF THE DISCLOSURE     A magnetic magneto-optic recording structure and method in which a magneto-optic active layer is positioned within the fringing magnetic fields of a magnetic recording medium, the structure preferably being disk-shaped.  The magneto-optic layer is irradiated by a continuous wave laser beam, by way of a transparent substrate thereon, to locally reduce the coercivity of the magneto-optic layer, so that the magneto-optic layer becomes locally magnetized to align itself with the fringing magnetic fields created by the magnetization pattern of information previously recorded on the magnetic recording layer.          The information thus recorded on the magneto-optic layer can be read out with a laser beam of lesser power, employing the Kerr effect.
Patent CA-1296659-C (CA)
Inventor: HEWITT TIMOTHY W
IPC: B65G13/00
Filed: 1987-08-07
Granted: 1992-03-03
Abstract: ABSTRACT        A collapsible conveyor comprises a frame supporting a plurality of rollers and a support structure comprising a pair of legs pivotally secured to the frame. The conveyor also includes braces which extend between the frame and the legs and maintain stability of the legs in their extended position.  Each leg comprises a first member adapted to be slidably received in a second member and the first member includes  an  inclined  surface  which  tapers  toward  the opposite surface toward the lower portion of the inserted legs member. A locking plate is pivotally secured to the second leg member adjacent the  inclined  surface,  and  the pivotable plate is engaged against the upper leg member by a bolt threadably engaged within a mounting plate secured to the hollow leg members In addition, each brace includes a pair of substantially U-shaped cannel members interconnected by a pivot pin so that one of the brace members can be pivoted toward and into the longitudinal channel of the other brace member when the leg is folded up against the conveyor frame.   The brace members pivot in a direction  away  from  the  point  at  which  the  legs  are pivotally secured to the conveyor frame so that a load supported by the conveyor urges the brace toward its fully locked and extended position.
Patent CA-1280321-C (CA)
Title: Traction device for line handling equipment
Inventor: FOWLER GEORGE A
IPC: B65H59/00
Filed: 1987-09-14
Granted: 1991-02-19
Abstract: TITLE           TRACTION DEVICE FOR LINE HANDLING EQUIPMENT                     INVENTORS                 George A. Fowler James M. Hamilton William J. Whiteway ABSTRACT         A traction device using grooveless traction rollers.  An angled roller mounting arrangement allows a number of line wraps to traverse back and forth across the rollers, following the spooling on the storage reel without the aid of a fairlead system for deployment.  The device provides for automatic separation of successive line wraps on the rollers to eliminate snagging of connectors or accessories attached to the line.
Patent CA-1281559-C (CA)
Title: Automatic transmission with add on overdrive
Inventor: EASTMAN RICHARD E
IPC: F16H37/04
Filed: 1987-10-21
Granted: 1991-03-19
Abstract: ABSTRACT OF THE DISCLOSURE          An add-on overdrive unit for location on an extended output shaft of an automatic transmission.  The unit includes a planetary gear set connected by means of its annulus gear to an outer race of a one-way clutch.  The one-way clutch inner race is concentrically interconnected to the transmission output shaft.  An hydraulic piston operates a first direct-drive clutch pack and a second overdrive clutch pack.  The piston is normally biased to its non-pressurized failsafe direct drive position by a compression coil spring. As a result the direct drive clutch pack is engaged causing the planetary sun gear to be locked to the annulus gear providing a one-to-one direct drive speed ratio to the overdrive output shaft via the engaged one-way clutch outer race.  Upon the piston being pressurized the overdrive clutch pack is engaged and the direct drive clutch pack is released grounding the sun gear to the overdrive case.  In its overdrive mode torque is transferred from the transmission output shaft via a planet carrier ring, the planet gears and the annulus gears to the outer race of the disengaged one-way clutch.  Thus, drive torque is transferred through the direct-drive clutch pack only in the reverse mode of the transmission.
Patent CA-1281972-C (CA)
Title: Center take-off electric rack and pinion steering gear
Inventor: HOVANCHAK JOHN A
IPC: B62D5/18
Filed: 1987-11-13
Granted: 1991-03-26
Abstract: Abstract A steering gear includes an elongate member having a screw thread portion adjacent one end thereof and a rack portion adjacent the other end thereof.  The steering gear also includes a steering input shaft and a pinion gear rotatable by the input shaft.  The pinion gear meshes with the rack portion of the elongate member.  An electric motor is adjacent the screw thread portion of the elongate member.  A ball nut is rotatable by said electric motor and cooperates with the screw thread portion to move the elongate member axially upon rotation of the ball nut.  A linkage is attached to the elongate member intermediate the screw thread portion and the rack portion to effect axial movement of the linkage upon axial movement of the elongate member.  The linkage turns steerable vehicle wheels upon movement of the linkage.
Patent CA-1303218-C (CA)
Inventor: NAKATSU KEIJI
IPC: G11B7/085
Filed: 1987-12-14
Granted: 1992-06-09
Abstract: ABSTRACT OF DISCLOSURE      A device for driving and controlling an optical head by forming a spot of a light beam on an optical disk having a plurality of tracks and detecting light from the spot reflected on the optical disk by a pair of optical detectors disposed in the head.  This device has:  a head actuator for moving a movable portion of the optical head in the radial direction of the disk; a-speed detector for detecting the track-crossing speed of the spot from outputs from the optical detectors; a reference speed generator for generating, while access to a target track, a reference moving speed signal in accordance with the distance to the target track obtained from the outputs from the optical detectors, the movable head portion being moved on the basis of the reference moving speed signal so that the speed of the movable portion decreases at a position near the target track before the light beam spot reaches this track; a speed error detector for obtaining the difference between outputs from the reference speed generator and the speed detector; and a magnification change circuit adapted for amplifying the outputs from the reference speed generator and the speed detector by a predetermined multiplying factor when the distance between the light beam spot and the target track or the crossing speed of the spot becomes smaller than a predetermined value, the magnification change circuit being also adapted for outputting the difference obtained by the speed error detector after multiplying it by the reciprocal of the multiplying factor.  The head actuator is driven on the basis of the output from the error detector so as to control the speed of the movable head portion.
Patent CA-1324699-C (CA)
Inventor: WADA AKIHIRO
IPC: C08F8/48
Filed: 1987-12-23
Granted: 1993-11-23
Abstract: ABSTRACT OF THE DISCLOSURE      A novel optical element substrate which comprises a random copolymer comprising, in specific weight propor-tions, a methyl methacrylate unit, an aromatic vinyl compound unit, an unsaturated aliphatic acid unit and a hexagonal acid anhydride unit of the formula   The substrate has excellent heat resistance, thermal stability, transparency, resistance to scratching and metal layer corrosion preventive properties and exhibits advan-tageously low double refraction and warpage.  The novel substrate can be advantageously employed as a substrate for an optical element such as an optical disc, e.g. a digital audio disc, a video disc and a disc capable of being directly read after recording, a mirror, a lens and the like.
Patent CA-1304105-C (CA)
Inventor: THOMSON RICHARD E
IPC: B63H9/10
Filed: 1988-01-06
Granted: 1992-06-23
Abstract: ABSTRACT OF THE DISCLOSURE           A variable strength magnetic holding assembly as disclosed.  It includes an attachment plate with a section made of magnetic material and a holding and support assembly adapted to magnetically hold the attachment plate thereon.  An adjustment knob is used to vary the magnetic coupling between the attachment plate and the holding and support assembly.
Patent CA-1279069-C (CA)
Title: Perfluoro-1,1-di(orthoxylyl) alkyl compounds
Inventor: BAILEY WEBB I
IPC: C07C17/10
Filed: 1988-02-15
Granted: 1991-01-15
Abstract: ABSTRACT    Novel compositions of matter are disclosed; perfluoro-1,1-di(ortho-xylyl) methane, perfluoro-1,1-di(orthoxylyl) ethane and perfluoro-1,1-di(orthoxylyl) propane.  The compositions are made by cobalt trifluoride fluorination of 1,1-di(orthoxylyl) methane, 1,1-di(orthoxylyl) ethane and 1,1-di(orthoxylyl) propane.  The compositions have utility as vapor phase soldering fluids.
Patent CA-1297339-C (CA)
Title: Reloadable ribbon cassette system
Inventor: HEINS HANS-PETER
IPC: B41J31/10
Filed: 1988-02-17
Granted: 1992-03-17
Abstract: ABSTRACT OF THE DISCLOSURE      A reloadable ribbon cassette system for typewriters or office machines of similar construction employs a bottom housing in which an exchangeable supply spool core for the ribbon and an exchangeable take-up spool core can be rotatab-ly mounted.  To facilitate the reloading process a cover plate is placed onto the top face of the ribbon coiled on the supply spool core, the cover plate inserted into the bottom housing member along with the supply spool core and ribbon when they are loaded.  The cover plate has a contact surface for helping to steady a fastening element disposed at the free end of the ribbon during reloading.  The cover plate projects beyond the ribbon coil at least in the region of the contact shelf to prevent accidental removal of the first few turns of the coiled ribbon in axial direction.  The cover plate unequivocally gives a starting point for a guide pin which is detachably connected to the fastening element, the guide pin being used for threading the ribbon around a ribbon path to the take-up spool core.
Patent CA-1284567-C (CA)
Inventor: BERT PAOLO
IPC: D01D13/00
Filed: 1988-04-05
Granted: 1991-06-04
Abstract: ABSTRACT          Continuous polypropylene multifilament yarns are made by melt spinning and stretching in an integral process; a sufficient number of filaments for forming at least 8 continuous fila-ment yarns each consisting of at least 10 filaments are melt spun through a spinneret (11) at a speed of at least 400 m/ min into a vertical air quenching zone or shaft (12) for sol-idification; the filaments are arranged to form a substanti-ally planar array of parallel and mutually distanced yarn strands; then, the filaments are stretched to achieve subst-antial orientation by passing the yarn strands, while main-taining them in the array, over peripheral surface portions of a sequence of rotating cylinders (141, 142, 143, 144) hav-ing parallel axes of rotation, each strand (S) passing over said surface portions along a discrete path which is substanti-ally defined by a plane intersecting perpendicularly with the parallel axes of the cylinders; each strand is in frictional contact with the peripheral surface portions for a total con-tact path length of from 1000 to 6500 mm and at least 50 %, preferably 75-100 %, of the path length of frictional contact are provided on a total number of from 2 to 6 and preferably 4 large diameter cylinders; the yarn strands are wound as a product at a speed of at least 1000 m/min, e.g. at about 2000 m/min.
Patent CA-1314361-C (CA)
Title: Method for protecting, renovating and restoring stone structures, monuments and the like
Inventor: RABE JUERGEN W
IPC: C04B41/48
Filed: 1988-04-11
Granted: 1993-03-16
Abstract: Method for protecting, renovating and restoring stone structures, monuments and the like.                       Abstract The invention relates to a method for protecting, reno-vating or restoring stone structures in which the struc-ture is treated with a solution which consists of an aliphatic isocyanate and one or more organic solvents inert thereto and then the isocyanate is cured by expo-sure to moisture.  The invention furthermore relates to the agents for carrying out the method consisting of a solution of aliphatic isocyanate in one or more organic solvents inert thereto.
Patent CA-1293417-C (CA)
Title: Biopsy device
Inventor: ZATLOUKAL KURT
IPC: A61M5/158
Filed: 1988-04-11
Granted: 1991-12-24
Abstract: ABSTRACT OF THE DISCLOSURE:     A  biopsy device including a two- or multi-lumen biopsy cannula has a biopsy channel of constant cross section over its entire lengh and at least one application  channel.  On its proximal end, it is provided with connection facilities for  an  aspiration  device and at  least  one  application device.  In  order  to  enable  the  collection  of tissue specimens of  an unchanged structure with the most  careful handling  possible  of the tissue and  the  application  of auxiliary  substances  into  the puncture  channel  without tissue  specimens getting into the application  cannula  and obstructing  the  same,  the cutting edge is formed  by  an acute-angularly  designed  end of the biopsy  channel  wall alone. At least one application channel is formed by a tube eccentrically  slipped  over the biopsy channel  wall.  The biopsy  channel  wall  projects out of the  tube  with  its cutting edge and the tube end encloses an obtuse angle with the biopsy channel.
Patent CA-1340298-C (CA)
Title: Dertegent liquid
Inventor: GREEN ROBIN JOHN
IPC: D06M11/56
Filed: 1988-05-09
Granted: 1999-01-05
Abstract: The viscosity of aqueous structured liquid detergent compositions containing a fabric softening clay material is limited by incorporation of a non-peptising/non-building electrolyte such as sodium formate, chloride or sulphate.
Patent CA-1332714-C (CA)
Inventor: BROWN BARRY M
IPC: B01D61/00
Filed: 1988-05-31
Granted: 1994-10-25
Abstract: - 0a -WATER PURIFICATION SYSTEM          ABSTRACT         A water purification system comprising a reverse osmosis unit (50) to separate feed water as product water and waste water, a reservoir (90) having bladder controlled expandable and contractible product water and control water chambers (94, 95, 96) and a control valve subsystem.           The control valve subsystem includes a feed water shut-off valve (10) and a regulating valve (30). The shut-off valve (10) has a control chamber (20) subjected to product water pressure to control its open-closed condition, and is effective to close it at a predetermined upper limit of product water pressure. The regulating valve (30) includes two diaphragm areas (A1, A2) on a single moving element, two diaphragm operated valves (37, 38) (only one of which can be open at one time), and a relief valve (46).           The regulating valve (30) is responsive to a demand for bladder control water to the reservoir (90) on diaphragm area (A1) to establish a first and higher level of control water flowing to the reservoir (90), and is also responsive to an excess of bladder control water flowing from the reservoir acting on diaphragm areas (A1) and (A2) to establish a second and lower level of control water back pressure in the reservoir (90).           The regulating valve (30) thus automatically senses whether the system is requiring control water to be fed into the control water chamber (96) to raise its pressure level; or is requiring control water to be relieved from the control water chamber (96) to reduce its pressure level. The higher pressure of control water is desired as the motive pressure for delivery of product water at the faucet or ice maker (100); the -0b-lower back pressure of control water, during production and filling, enhances flow through the filtration unit (50).
Patent CA-1313838-C (CA)
Title: Patient mover
Inventor: OSWALT JAMES
IPC: A61G1/00
Filed: 1988-06-20
Granted: 1993-02-23
Abstract: Abstract An apparatus for use in moving a small child who has been injured or sick.  The apparatus includes a base, and a flexible flat board mounted to the base.   The ends of the board can be moved to a raised position to accommodate the  child.    The  apparatus  also  includes  supports  for supporting the ends of the board when they are in the raised position. The base, board, and support means have pluralities of openings for use in immobilizing the child and in securing the apparatus; to a stretcher. \DIX490\MISC\MOVER.PAT
Patent CA-1306572-C (CA)
Title: Storage stable heat curable organosiloxane compositions containing microencapsulated platinum-containing catalysts
Inventor: LEE CHI-LONG
IPC: C08L83/07
Filed: 1988-07-06
Granted: 1992-08-18
Abstract: STORAGE STABLE HEAT CURABLE ORGANOSILOXANE COMPOSITIONS CONTAINING MICROENCAPSULATED PLATINUM-CONTAINING CATALYSTS                          ABSTRACT           Storage stable, one part organosiloxane compositions that cure upon heating by a platinum-catalyzed hydrosilation reaction comprise, in addition to the organo-siloxane reactants, a platinum-containing hydrosilation catalyst that is  microencapsulated within one or two layers of thermoplastic organic polymers.  The microcapsules are formed using known techniques.
Patent CA-1319403-C (CA)
Title: Dual wall wire having polyamide and fluoropolymer insulation
Inventor: DAY STEPHEN
IPC: H01B7/02
Filed: 1988-07-08
Granted: 1993-06-22
Abstract: ABSTRACT     An electrical wire comprises an elongate electri-cal conductor and electrical insulation that comprises:       (a)  an inner insulating layer which comprises a poly-amide that has a glass transition temperature of at least 0°C; and (b)  an  outer  insulating  layer  which  comprises  a fluorinated  polymer,  for  example  an  ethylene-tetrafluoroethylene copolymer.      The wire exhibits a balance of properties, espe-cially weight and cut through resistance combined with high resistance to wet and dry tracking, that make the wire useful inter alia for airframe wire.
Patent CA-1306096-C (CA)
Title: Process of removing hydrogen sulfide from exhaust gas
Inventor: FISCHER HERBERT
IPC: C01B17/04
Filed: 1988-08-23
Granted: 1992-08-11
Abstract: ABSTRACT         A feed gas which contains H2S is combusted with oxygen and air in at least one burner, which opens into a combustion chamber. The resulting gas mixture contains H2S and SO2 and is intended to be converted to elementary sulfur by the Claus process. The combustion chamber is supplied with oxygen through a central tube of the burner, with the H2S-containing feed gas through a second tube, which co-axially surrounds the central tube, and with air through a coaxial outer tube. The feed gas supplied to the burner contains H2S and at least 5% by volume hydrocarbons or CO2.    Velocities of flow of oxygen of 50 to 250 m/sec. and of the H2S-containing feed gas of 10 to 30 m/sec. are adjusted at the outlet of the burner. Temperatures in the range from 2000 to 3000°C are generated in the core zone of the burner flame. A gas mixture which contains at least 2% by volume CO and at least 8% by volume H2 and is at temperatures from 1350 to 1650°C is withdrawn from the combustion chamber.
Patent CA-1328557-C (CA)
Inventor: STOMP HUBERT
IPC: C21C5/46
Filed: 1988-08-29
Granted: 1994-04-19
Abstract: ABSTRACT         A radially guided ring (36) is axially vertically displaceable by means of two lifting spindle systems (43) provided on each side of said ring and bears pivotable hooks (16, 16') for receiving the lance (77) and for pressing the latter axially against a sealing surface (74) on the coupling head (4).  The hooks (16, 16') are connected to the stationary coupling head (41 via pivotable connecting rods (24, 24') whose length is alterable, these connecting rods (24, 24') being articulated eccentrically on the support pin (30, 30') of the hooks (16, 16'); the bearing bore at the coupling head end of the connecting rods (24, 24') has a larger diameter (see clearance 66 in Fig. 2) than the associated wrist pin (68, 68').  When the ring (36) is displaced axially, the hooks (16, 16'), which have swung out, in a first phase first of all sur-round the supporting pins (96, 96') on the upper part of the lance (Figs. 3a to 3e); as the ring (36) is displaced further, the hooks (16, 16'), without executing any further pivoting movement, pull the lance head into sealing contact with the coupling head (4).