baber/WOPTO huggingface dataset:
Patent CA-2088219-A1 (CA)
Title: Clear axis, segmented multifocal ophthalmic lens
Inventor: ROFFMAN JEFFREY
IPC: G02C7/06
Filed: 1993-01-27
Abstract: A multifocal refractive lens to focus light on the retina of the eye. The lens is comprised of a plurality of segments, having different optical powers, at least one for distance vision and another for near. The lens does not require orientation to produce adequate far and near vision and normal stereoscopic effect. One or both of the segments having the optical powers may have aspherical lens surface. The central zone of the lens consists of only one lens segment, providing a clear central axis.      Segments of the other optical power border the first segment along a path defined by a semi-circle or hyperbola that extends from one point along the periphery of the adjoining segments to another paint along the periphery of the adjoining segments.
Patent CA-2088387-A1 (CA)
Title: Wobble plate type refrigerant compressor
Inventor: KAWAHARA TAKAYUKI
IPC: F04B27/08
Filed: 1993-01-29
Abstract: WOBBLE PLATE TYPE REFRIGERANT COMPRESSOR          ABSTRACT OF THE DISCLOSURE A wobble plate type compressor includes a cylinder housing having a cylinder block and a front end plate. The interior of the housing defines a crank chamberbetween the cylinder block and the front end plate. Pistons are respectively slidably fitted within each of a plurality of cylinders within the cylinder block and arereciprocated by a drive mechanism. The drive mechanism includes a drive shaft, a rotor fixed to the drive shaft and a wobble plate disposed on an inclined surface of the rotor. The drive shaft is supported in the center of the front end plate through a radial needle bearing. The radial needle bearing comprises a plurality of cylindrical rollers annularly arranged around the drive shaft and a cylindrical outer race covering the rollers. At least one hole is formed on the circumference of the outer race. An oil passageway is formed within the front end plate and extends between the interior of the crank chamber outside of the rotor and the hole in the race.
Patent CA-2088552-A1 (CA)
Title: Method of preparing vicinal aminoalcohols
Inventor: BRUSSEE JOHANNES
IPC: C07F7/18
Filed: 1993-02-01
Abstract: Abstract The present invention is concerned with the preparation of N-substituted vicinal  aminoalcohol  derivatives  from the corresponding hydroxyl-protected cyanohydrin derivatives by successive partial reduction, transimination using a primary amine, reduction of the resulting imine and optional removal of the hydroxyl-protecting group. The products are obtained either as a racemate or in an optically pure form, depending upon  the  stereochemical  composition  of  the  starting cyanohydrin derivatives. The present invention is also concerned with certain new enantiomerically    pure    hydroxyl-protected    vicinal aminoalcohols.
Patent CA-2089899-A1 (CA)
Inventor: ORLANDINI DANTE
IPC: G07D7/182
Filed: 1993-02-19
Abstract: The device comprises a conveying cylinder (1) for the sheets (3) to be checked, which is provided with a bar of sheet-clamps (2) and at least one detector (4). In proximity to the detector (4), there is provided a calibrating strip (6) mounted in a movable manner with respect to the surface of the cylinder (1) and linked to a mechanism (5) enabling it to be lifted intermittently when the clamps (2) pass below, and adjusting means (12-15) for setting the distance from said strig to the cylinder in its operating position to a determined value.
Patent CA-2089979-A1 (CA)
Title: Device for the pneumatic discharge of concrete that is hydromechanically transported in a dense flow
Inventor: VON ECKARDSTEIN KARL-ERNST
IPC: F04B15/02
Filed: 1993-02-19
Abstract: Abstract The invention covers a device for the pneumatic delivery of concrete that is hydromechanically transported in an enclosed stream (2) with a concrete pump (1) for the hydromechanical transport, and a solidification accelerator dosing device. In order to provide a device that allows the simultaneous metered addition of several additives which in each case are adjustable from a minimum to a maximum volume, it is provided that at least one additional additive dosing device (500, 501, 502) with a linear piston pump (470, 471, 472) is included, that is also connected to the linear piston drive (34-37) of the device, where in the discharge lines (480, 481, 482) of each additional dosing device (500, 501, 502) a distribution valve (490, 491, 492) for the redirection of the dosing agent into each one dosing agent tank (460, 461, 462) or into the dosing agent discharge line (8, 81, 82) is installed, where the distribution valves (490, 491, 492) are loaded with the pressure of the hydraulic medium prevailing in the piston cavity of the working cylinders (25, 26).     (Fig. 1)
Patent CA-2090193-A1 (CA)
Title: Method for removing zinc sulfide and lead sulfide scale deposits
Inventor: FORD WILLIAM G F
IPC: E21B37/00
Filed: 1993-02-23
Abstract: ABSTRACT      A   precipitation   control   additive,   an   acidizing composition for treating a sour well and a method of treating a sour well are provided.   A sequestering agent, such as aminopolycarboxylic acids,  hydroxycarboxylic acids,  cyclic polyethers, and derivatives thereof and a sulfide reactant, such as aldehydes, acetals, hemiacetals, alpha unsaturated ketones, and many other compounds capable of forming aldehydes and alpha unsaturated ketones in solution are added to a treating solution.   The sequestering agent combines with a nonferrous metal ion present in the solution while the sulfide reactant combines with sulfides present in the solution.  By combining with both the metal and sulfides present in the solution,  the combination of a sequestering agent and a sulfide reactant effectively inhibits precipitation of zinc sulfide and lead sulfide.  As a result, formation and other serious damage is prevented.
Patent CA-2093164-A1 (CA)
Title: Automated carry can and method of use
Inventor: ZOPF WILLIAM D
IPC: B65F3/04
Filed: 1993-04-01
Abstract: ABSTRACT OF THE DISCLOSURE     A carry can which may be attached to a lift assembly of a refuse collection vehicle, and having a side arm assembly attached thereto for emptying refuse containers.  The side arm assembly includes an extendable arm coupled to the carry can, terminating in a tilt assembly and a grabber assembly.          The grabber assembly engages a refuse container, which is drawn to the carry can where the tilt assembly empties the refuse container.
Patent CA-2095699-A1 (CA)
Title: Multi-Functional Wall Cover for Architectural Joints
Inventor: NICHOLAS JOHN D
IPC: E04B1/68
Filed: 1993-05-06
Abstract: A multi-functional cover member is provided for wall joint systems.   Architectural structures frequently are constructed to provide a plurality of independent structur-al units to accommodate relative motion resulting from thermal expansion and contraction, for example, or possibly from seismic activity.  The space between units is covered by a plate, mounted to allow for movement.  An improved and economical  form of multi-functional  cover plate  is  an elongated member of uniform cross section throughout, which includes  spaced-apart  contact  means  for  engaging  the adjacent structural units.  The cover member is specially configured so that a single design of cover can selectively accommodate a wide variety of mounting arrangements.  These include an anchoring base,  for receiving screws or the like, a continuous, downwardly opening slot on the bottom of the cover to selectively receive mounting clips previ-ously fastened to one of the structural units, and opposed laterally opening slots on the bottom of the cover for the selective reception of a centering clip mounting device. The cover member also has semi-cylindrically edge margins for the selective reception and retention of a decorative plastic shell.   The multi-functional  design enables  a single part to be utilized in a wide variety of ways, heretofore requiring a plurality of individually manufac-tured parts.  Significant savings in inventory and handling costs are realized by both the manufacturer and the in-stalling contractor.
Patent CA-2098651-A1 (CA)
Title: Process for dehydrogenating light paraffins in a fluidized bed reactor
Inventor: IEZZI RODOLFO
IPC: B01J23/62
Filed: 1993-06-17
Abstract: PROCESS FOR DEHYDROGENATING LIGHT PARAFFINS IN A FLUIDIZED BED          REACTOR          Abstract A process for dehydrogenating light paraffins, in particular C2-C5, to obtain the corresponding light olefins, comprising reacting said paraffins with a catalytic system containing platinum, tin and an alumina support and possibly an element of the lanthanide group in a fluidized bed reactor, where the heat required for the reaction is provided by said catalytic system as sensible heat, operating at a temperature of between 500 and 700°C and at a pressure of between 1 and 2 kg/cm2, and regenerating said catalytic system by burning the coke which has deposited on the surface of the catalytic system, said regeneration being conducted in air and/or oxygen, if necessary by increasing the temperature of the catalytic system to a suitable level, followed by reduction of said catalytic system with a reducing agent.
Patent CA-2101123-A1 (CA)
Inventor: YEOW KOK-WAH
IPC: G06F21/78
Filed: 1993-07-22
Abstract: A method by which absolute static lock may be applied at media level,to files and directories in File Allocation Table (FAT)-based storage media,of single machine personal microcomputers running within the Disk Operating System (DOS) or equivalent environment is disclosed. To apply absolute static lock at media level on a target file or directory, the directory entry data field on disk for the target file or directory in the host machine is located and read into a convenient area of the host machine memory. The directory entry data field is restructured according to the procedure and in the non-DOS format of this invention.The original directory entry data field on the target media is replaced with the restructured non-DOS directory entry data field of this invention.The corresponding target file cluster data contained in the FAT is protected. Encryption of the target file contents may be incorporated into the absolute lock process if required. Target files or directories upon which the absolute static lock of this invention has been successfully applied cannot be accessed by DOS at media level,for the critical operations of read,copy, overwrite and erase.The reverse unlock process,by which the previously applied absolute static lock may be removed from a target file or directory,restoring it to the original unlocked DOS state,is also disclosed.In the special case where the target media is a floppy,the method of applying,or removing,absolute static lock to the floppy disk,is also disclosed.
Patent CA-2101353-A1 (CA)
Title: Dynamic resistance device for a physical exerciser
Inventor: WU HONG-CHI
IPC: A63B21/00
Filed: 1993-07-27
Abstract: Abstract: A dynamic resistance device for an exerciser, comprises a bracket; an actuating device which is mounted within said bracket, which includes a motor and an output shaft; a winch which includes a winding drum and a cable, the winding drum is extended coaxially with a first rotating shaft and a second rotating shaft, as the winding drum rotates, the first and second rotating shaft will rotate consequently, one end of the cable is fixed on the winding drum, and the cable is wound within a spiral slot of the winding drum; a reduction device includes a first liming wheel and a second timing wheel, the first and second timing wheel are connected with a timing belt, the timing wheel is fixed on the output shaft of the motor, and the second timing wheel is fixed on the first rotating shaft which is connected to winding drum; a fairleader includes a stopping plate and a rubber ball, stopping plate is bridged on the top of bracket and has a slot thereof, the cable can pass through the slot freely, the diameter of the rubber ball is larger than the width of the slot, hence the rubber ball will be limit thereon as the cable is retrieved into the winding drum; and a cover which can be attached to the bracket to prevent dirt and debris.
Patent CA-2103930-A1 (CA)
Title: Synthesis of bicyclic aromatic sulfonic acids, sulfonyl chlorides and sulfonamides
Inventor: MILLER WILLIAM D
IPC: C07D/
Filed: 1993-08-12
Abstract: Abstract This invention provides a novel process for the synthesis of bicyclic aromatic sulfonic acids employing reacting a bicyclic aromatic compound with sulfur trioxide-N,N-dimethylformamide complex in the presence of a water miscible, non-reactive solvent.  The resulting sulfonic acid may be converted into the corresponding sulfonyl halide by the reaction with a thionyl halide.  This invention further provides a novel process for the synthesis of bicyclic aromatic sulfonamides employing the reaction conditions described supra followed by an ammonolysis or amination.  The resulting bicyclic aromatic sulfonamides can then be reacted with an appropriately substituted isocyanate to synthesize diaryl sulfonylureas.
Patent CA-2104827-A1 (CA)
Inventor: KRAMER JAMES D
IPC: B65B43/12
Filed: 1993-08-25
Abstract: A packaging machine and method for simultaneously loading, sealing and severing bags. A first stepper motor, having an output, is coupled to a nip roll assembly. After a bag is loaded, a sealing mechanism is actuated to seal the loaded bag or bags. A sensor monitors movement in a pressure bar and ter-minates the sealing cycle if a jam is detected before the pressure bar engages a seal bar having a heater for sealing the bag. The stepper motor is used to retract bags and sever a leadmost bag that is clamped between the seal bar by the pressure bar. A second stepper motor withdraws the web from a supply at a controlled rate to maintain tension in the web between the first and second stepper motors. A dancer roll assembly includes an orientation sensor for controlling the second stepper motor to speed up, slow down or stop.
Patent CA-2105189-A1 (CA)
Inventor: JACKSON MELVIN R
IPC: C22C27/02
Filed: 1993-08-19
Abstract: CLAD STRCUTURAL MEMBER WITH NbTiAlCr Hf ALLOY CLADDING AND  NIOBIUM BAS METAL CORE           ABSTRACT OF THE DISCLOSURE           Composite structures having a higher density, stronger reinforcing niobium based alloy embedded within a lower density, lower strength niobium based cladding alloy are provided.  The cladding is preferably an alloy having a niobium and titanium base according to the expression:            Nb-Ti27-40.5-Al4.5-10.5-Hf1.5-5.5V0-6Cr4.5-8.5Zr0-1C0-0.5, where each metal of the metal/metal composite has a body centered cubic crystal structure, and wherein the ratio of concentrations of Ti to Nb (Ti/Nb) is greater than or equal (?) to 0.5, and wherein the maximum concentration of the Hf+V+Al+Cr additives is less than or equal (?) to the expression:           16.5 + 5 x Ti/Nb .         The reinforcement may be in the form of plates, sheets or rods of the higher strength, higher temperature niobium based reinforcing alloy.  The same crystal form is present in both the matrix and the reinforcement and is specifically body centered cubic crystal form.
Patent CA-2105576-A1 (CA)
Title: High shear mixer and glass melting apparatus and method
Inventor: RICHARDS RAY S
IPC: C03B5/193
Filed: 1992-03-03
Abstract: A glass melter (30) having a mixing impeller (34) for converting a feed stream (38) supplied to a vessel (32) into a vitrified glass melt (50). Heating means such as electrodes (36) or a gas burner (58) are used to heat the glass melt (50). Electrode (36) ar-rangements are proposed for minimizing current flow through the impeller (34).  Current flow through a special continuous circu-lar impeller or conical pump (70) is disclosed. A cylindrical vessel (98), triangular vessel (94), square vessel (32), and hexagonal vessel (96) are disclosed. Methods of processing particular waste streams are disclosed including coated mineral fibers, fly ash, radioactive material, chemical waste and the like.
Patent CA-2106448-A1 (CA)
Title: Cap system for underdrains in gravity filters
Inventor: BROWN MARVIN A
IPC: B01D29/88
Filed: 1993-09-17
Abstract: CAP SYSTEM FOR UNDERDRAINS IN GRAVITY FILTERS               ABSTRACT OF THE DISCLOSURE         An  improved  cap  for  underdrains  in  gravity filters has a top surface and a bottom surface with a plurality of tapered screen members defining slots in the top surface.   The slots provide communication with the filter bed without passage of fine grain filter media therethrough.    The  screen  members  are  inclined  with respect to horizontal to define a plurality of raised portions in the top surface, each raised portion defining a  distribution  chamber  above  the  orifices  in  the distributor.  The cap may be included in a capped filter underdrain block having a plurality of ribs and orifices on a top wall of the block.  The cap rests on the ribs and cooperates with them to define distribution chambers above the orifices in the top wall of the block.   The distribution  chambers  promote  intermixing  of  air  and water prior to introduction to the bed,  and the ribs finely meter backwash fluids for even distribution of backwash fluids throughout the entire filter bed.
Patent CA-2106885-A1 (CA)
Title: Apparatus for transporting web-shaped packaging material
Inventor: FOCKE HEINZ
IPC: B65B41/12
Filed: 1993-09-24
Abstract: A b s t r a c t (in conjunction with Figure 4) 1.      Apparatus for transporting a material web having lateral depressions  (25, 27)  arranged at regular dis-tances from one another. 2.1     For the transport of a material web (10, 35) of this type in the correct position,  the web bears on a conveying drum (28) which has elevations  (29, 30)  for positive penetration into the depressions (25, 27), 2.2     In a material web (10, 35) consisting of parti-ally prepunched blanks  (11),  the conveying drum  (28) serves, in cooperation with an auxilary drum (51), for forming bending points (49, 50), the material web (10, 35) being capable of being grasped by suction bores (52, 53),  offset  relative  to  one  another  in  the  circum-ferential direction, of the conveying drum (28), on the one hand, and of the auxiliary drum (51), on the other hand.
Patent CA-2108317-A1 (CA)
Inventor: GROMOTKA GABRIEL
IPC: E05B65/48
Filed: 1993-10-13
Abstract: An over center draw latch with lock bolt action is disclosed which performs the functions of both a bolt type latch and a draw type latch.  The latch comprises a housing mounted on one panel, a lever rotatably mounted on the housing, a spring rotatably mounted on the lever and keeper mounted on another panel.  When the latch is fastened, the spring engages the keeper to thereby draw the panels together.  In addition, a portion of the lever engages the keeper to provide a lock bolt action. In the closed position, the latch prevents relative movement of the panels in all directions.
Patent CA-2108636-A1 (CA)
Title: Tapered intrusion beam for reinforcing a vehicle door
Inventor: FREEMAN RICHARD B
IPC: B60J5/04
Filed: 1993-10-18
Abstract: ABSTRACT OF THE DISCLOSURE An intrusion beam structure for reinforcing a vehicle door includes an elongated member adapted to be attached to a surface of the inner panel of a door frame that is substantially parallel to the axis defined by the elongated member. The elongated member includes first and second end portions interdisposed by a middle portion. The end portions are substantially identical and each taper away from the middle portion. In a first embodiment, the elongated member is unitarily formed and has a substantially circular cross-section. In a second embodiment, the elongated member includes first and second bar portions which substantially traverse the entire length of the elongated member and are disposed substantially parallel to each other. The first and second bar portions are separated by an intermediate structure.
Patent CA-2111016-A1 (CA)
Inventor: MUDDIMAN ROBERT W
IPC: F16K15/03
Filed: 1993-12-09
Abstract: A fluid check valve of the two flapper variety which has replaceable seat flapper assembly. The assembly comprises a tubular ring having a seating area on the surface of one end and a reduced diameter portion on the other end. A pair of pin keepers are attached to opposite sides of the seat ring and the flappers are pivotably attached to a pin that passes through holes in the keepers. Preferably the pivot holes in the keepers or the pivot holes in the flappers or both are elongated to allow movement of the flappers along the valve axis. The seat ring is a sliding fit in the bore of the valve body and abuts against an annular rib in the valve body bore.      The reduced diameter portion of the seat ring extends through the annular rib. A retaining ring is attached to the reduced diameter portion by threaded engagement, bolts, or other means and tightened until it abuts against the other side of the annular rib thus holding the seat ring in tight assembly in the valve bore against the rib.
Patent CA-2112591-A1 (CA)
Title: Process for the protection of plant seeds and apparatus to carry out said process
Inventor: RENSING CORNELIS W
IPC: B01J/
Filed: 1992-07-11
Abstract: The object of the present invention is an improved process for the phyt-oprotection of plant seeds, wherein there is simultaneously applied to the seeds, on the one hand, at least one first liquid composition containing at least one phytoprotection product, and on the other hand, a foam formed from a second composition, containing at least one nonphytotoxic foaming agent. The inven-tion also relates to phytoprotection apparatus comprising a foam-making ap-paratus which allows the process to be carried out.
Patent CA-2114313-A1 (CA)
Title: Bpc peptides, their preparation and use
Inventor: SEIWERTH SVEN
IPC: A61P31/12
Filed: 1993-05-28
Abstract: New peptides are disclosed which have organo-protective activity of the same type as known compound BPC and which have shorter amino acid chains than natural compound BPC.
Patent CA-2115505-A1 (CA)
Inventor: LOEFFLER ALFONS
IPC: D04B1/00
Filed: 1994-02-11
Abstract: Abstract Double-face circular knit There is described a double-face circular knit comprising two concentric lengths of knit web and an in-between spacer  structure,  wherein  the  spacer  threads  are optionally textured coarse-filament multifilament yarns, optionally  in  combination  with  monofliaments,   the distance between the two lengths of knit web is from 0.3 to 8 mm,  the stitch density corresponds to a machine gauge from E 16 to E 32, and the density of the spacer threads is between 150 and 250 threads per cm2. Prefer-ably all the yarns of the double-face circular knit are made  of  the  same  polymer.   Also described  are the production and use of this double-face circular knit.
Patent CA-2116522-A1 (CA)
Title: High-solids curd-whey separation process
Inventor: LELIEVRE JOHN
IPC: A23C19/05
Filed: 1994-02-18
Abstract: A process for producing a cheese comprising the steps of preparing a high solids milk curd.   Once the coagulate has reached the desired consistency, an amount of extrinsic water is added to the curd at an elevated temperature, either before or following cutting, and then the curd is stirred in the presence of the heated water in an amount effective to lubricate the surfaces of the cut curd, in order to thereby facilitate  the  stirring  and  ultimately  to  improve  the  syneretic expression of whey from the curd.