baber/WOPTO huggingface dataset:
Patent CA-1192909-A (CA)
Inventor: MARTEL JACQUES
IPC: C07C51/353
Filed: 1982-02-12
Granted: 1985-09-03
Abstract: A novel process for the epimerization of alkyl trans chrysanthemates comprising reacting at a low temperature in an anhydrous organic solvent an alkyl trans chrysanthemate of the formula    <IMAGE>  II of the 1S, trans or 1R, trans configuration wherein R is alkyl of 1 to 6 carbon atoms with a strong alkali metal base to obtain a compound of the formula    <IMAGE> III  wherein R has the above definition and M is an alkali metal, reacting the latter compound with a reactant of the formula Y-A wherein A is selected from the group consisting of chlorine, bromine, iodine and anion derived from a hydrogen acid and Y is an organic radical capable of forming a ketal of a ketene to obtain a compound of the formula    <IMAGE> IV reacting the latter at a low temperature in an anhydrous organic solvent with a proton donor to obtain a mixture of the corresponding alkyl cis chrysanthemate and alkyl trans chrysanthemate and recovering the cis chrysanthemic acid of the formula    <IMAGE> I with the 1R, cis or 1S, cis configuration.
Patent CA-1190576-A (CA)
Inventor: MYERS LAWRENCE R
IPC: B60T13/563
Filed: 1982-03-02
Granted: 1985-07-16
Abstract: ABSTRACT OF THE DISCLOSURE           A tandem brake booster (10) having a housing (12) with a cavity therein divided by a first wall (24) and a second wall (28) into first, second and third chambers (20, 26 and 30).  The first and second chambers (20, 26) are connected to each other through a control valve (62) and the first and third chambers (20, 30) are connected to each other by a conduit (38).  The second wall (28) is connected to the first wall through lever arrangements (100 and 102).  When the first chamber (20) is connected to a source of vacuum, air is evacuated from the first, second and third chambers (20, 26 and 30).  In response to an input force, the control valve (62) interrupts communication of vacuum to the second chamber (26) and allows air to be communicated to the second chamber (26). With air in chamber (26) and vacuum in the first and third chambers (20 and 30) a pressure differential is created across walls (24 and 28).  This pressure differential simultaneously acts on the first wall (24) and second wall (28) by moving the first and second walls (24 and 28) in opposite directions to develop first and second output forces.  The second output force is transmitted through the lever arrangement and added to the first output force to produce an operational force for activating a master cylinder.     (Figure 1)
Patent CA-1190114-A (CA)
Inventor: BERGER RICHARD M
IPC: A24D3/04
Filed: 1982-04-07
Granted: 1985-07-09
Abstract: ABSTRACT OF THE DISCLOSURE        An improved tobacco smoke filter is characterized by an undiluted air passage formed between a smoke-impervious plug wrap and an air-impervious tipping wrap by loosely wrapping the tipping wrap about the plug wrap along a section of the filter extending from its smoke discharge end.   In a preferred embodiment, the 1oose wrapping is effected by reducing the cross-sectional perimeter of the rod and plug wrap along the aforesaid section while keeping the tip of the cross sectional perimeter substantially constant throughout its length.   A raised lip is provided at the smoke discharging end of the rod and plug wrap to define a cigarette holder in the filter. For circumstances where the cross-section of the filter plug becomes too complex for adherence of the tipping paper, heat shrinkable film can be laminated in the tipping paper so that after the entire cigarette is assembled, it can be subjected to heat and cause the tipping paper to shrink to the appropriate size.   In addition, particles of material which impart flavor to the smoke may be embedded into the plug wrap. Apparatus and method for manufacturing the filter as des-cribed are disclosed.
Patent CA-1179112-A (CA)
Title: Tool for trimming lapping edge portions of sheet  material
Inventor: DEMETER PAUL J
IPC: B26B5/00
Filed: 1982-05-27
Granted: 1984-12-11
Abstract: TOOL FOR TRIMMING, LAPPING EDGE PORTIONS            OF SHEET MATERIAL                 ABSTRACT OF THE DISCLOSURE              A tool for trimming lapping edge portions of sheet material, such as linoleum, to form a butt seam.  The tool in-cludes a roller supported base intended to be moved lengthwise of and in a straddling relationship relative to the overlapping portions; a tool operating handle pivotally supported on the base and fitted with a cutting blade; a lock device for selectively retaining the handle in either blade change or cutting/carrying positions; and an adjustment device for selectively controlling the depth of cut of the blade, while in its cutting/carrying position, such that the depth of cut is independent of pressure applied by an operator to the handle for purposes of effecting movement of the tool lengthwise of the overlapping edge portions during a seam cutting operation.
Patent CA-1170077-A (CA)
Inventor: BROWN RONALD E
IPC: G01L1/22
Filed: 1982-09-09
Granted: 1984-07-03
Abstract: D-4,935   C-3301 SEMICONDUCTOR PRESSURE SENSOR     WITH SLANTED RESISTORS          Abstract of the Disclosure A diaphragm is formed in a silicon chip by etching a rectangular cavity in one side thereof and piezoresistive resistors are formed in the other surface of the chip to sense stress changes on the diaphragm due to pressure changes.  At least one resistor is placed along the edge of the diaphragm where a sharp stress peak occurs.   To avoid the problem of inaccurate placement of the resistor relative to the peak, the resistor is slanted with respect to the stress ridge at a small angle of 10° to 20°.  This makes the resistor placement and cavity alignment much less critical thereby assuring greater uniformity of response from one sensor to another at the expense of signal size for a given pressure change on the device.
Patent CA-1163099-A (CA)
Title: Water resistant shaped case construction for a  wristwatch
Inventor: THOMPSON HARWELL B
IPC: G04B39/02
Filed: 1982-09-16
Granted: 1984-03-06
Abstract: WATER-RESISTANT SHAPED CASE CONSTRUCTION              FOR A WRISTWATCH     ABSTRACT OF THE DISCLOSURE     A water resistant shaped case construction for a wristwatch with a bell-shaped molded crystal with a central  viewing portion and a depending wall forming part of the case including an integral pend-ant for the stem, a stainless steel bezel shell clamping a sealing gasket between the rim of the crystal wall  and the caseback by a snap-fit  attachment  between  the  bezel  and  the  case  back.   The improvements include a shoulder on the crystal wall cooperating with the rim of the caseback to control the clamping action on the gasket.
Patent CA-1203432-A (CA)
Inventor: KESSLER JOHN R
IPC: B41J27/10
Filed: 1982-11-17
Granted: 1986-04-22
Abstract: INK ROLLER ASSEMBLY WITH CAPILLARY INK SUPPLY     Abstract of the Disclosure A rigid plastic tube supports an ink applying sleeve of resilient micro-porous ink retaining material, and a pair of end journal and closure members are pressed into opposite ends of the tube.   An ink retaining unit confined within the support tube between the end closure members and includes axially spaced thin plastic discs which define therebetween ink retaining capillary chambers for receiving a supply of ink.  A series of axially spaced holes are formed in the support tube and control the outward radial flow of ink from the capillary chambers into the micro-porous sleeve.  In one form, the thin plastic discs are separately formed or molded and include axially pro-jecting hub portions which interfit and provide for pressing a stack of the discs together to form the ink retaining unit.
Patent CA-1185849-A (CA)
Inventor: KASKA WILLIAM J
IPC: F02M51/08
Filed: 1982-12-02
Granted: 1985-04-23
Abstract: Electromagnetic Fuel Injector Having Improved Response Rate Abstract An electromagnetically operated fuel injector includes a disk-type armature and a ball-type valve joined to the armature.  The response characteris-tics and speed of the injector's ball-valve are im-proved by modifying the surface structure of the valve ball to reduce its mass.  Preferably a plu-rality of plunge-ground "flats" are formed on the surface of the ball.
Patent CA-1194110-A (CA)
Inventor: BARBER THOMAS D
IPC: G01V3/28
Filed: 1982-12-30
Granted: 1985-09-24
Abstract: ABSTRACT OF INVENTION      A method and system for processing induction measurements of sub-surface formations taken by an induction logging system at various depths in a borehole is disclosed,  The method reduces the unwanted contributions in each measure-ment from induction currents flowing in the formations spaced apart from each measurement depth.  The spatial domain sonde response function obtained at zero conduc-tivity is Fourier transformed and truncated at a spatial frequency less than the spatial frequency at which the transformed function first goes to zero.  A Kaiser window transfer function is then selected and the inverse Fourier transform of the ratio of the Kaiser window function to the transformed truncated sonde response function is formed to obtain a deconvolution filter function which when convolved with the sonde response function reduces the non-zero sidelobes in the system response function and thus reduces the shoulder effect.
Patent CA-1203248-A (CA)
Inventor: OHASHI NAOHITO
IPC: C07C227/34
Filed: 1983-01-04
Granted: 1986-04-15
Abstract: ABSTRACT OF THE DISCLOSURE         A process for producing an optically active threo-3-(3,4-dihydroxyphenyl)serine useful as a remedy for hypotension or as an antidepressant, which comprises allowing the crystal nuclei of an optically active threo-3-(3,4-dihydroxyphenyl)serine to be present in a supersaturated solution of racemic threo-3-(3,4-dihydroxyphenyl)serine and allowing the same optically active compound as that of said crystal nuclei to crystallize preferentially out of said supersaturated solution.
Patent CA-1193773-A (CA)
Inventor: WOLTERS GERARDUS A M
IPC: H04Q1/457
Filed: 1983-01-06
Granted: 1985-09-17
Abstract: ABSTRACT:           A multi-frequency signal receiver for use in telephony signalling systems comprises a plurality of frequency selective circuits (2-7) whosa outputs are con-nected to a signal combination detector (8) which produces a code at its output (9) which depends on the signals passed by the frequency selective circuits (2-7). A guard circuit (10) is provided to inhibit the output (9) of the signal combination detector (8). The guard circuit (10) determines the total received power and compares this with the power of two strongest multi-frequency signals received in order to decide whether the detected signal is valid. The guard circuit (10 also includes a comb filter having maximum attenuation at the frequencies to which the frequency selective cir-cuits (2-7) are sensitive and minimum attenuation half way between the frequencies to which two successive frequency selective circuits are tune. If the power passed by the comb filter is greater than a predetermined value the output of the signal combination detector (8) is inhibited. This prevents a single frequency large amplitude signal located mid way between two successive signalling frequencies from activating the receiver.
Patent CA-1196341-A (CA)
Inventor: PARSONS NORMAN C
IPC: C07C43/13
Filed: 1983-03-23
Granted: 1985-11-05
Abstract: ABSTRACT          PRODUCTION OF ALKOXYALRYL PHOSPHATE ESTERS   A process for the production of alkoxyalkyl tri-organic phosphates utilizing a continuous process for the manufacture of alkoxyalkyl alkoxides comprising treating an alkoxyalkanol with a sodium borohydride for 20 minutes to 4 hours reacting the treated alkoxyalkanol continuously with an alkali metal hydroxide to form an alkali metal alkoxide.   A large excess of alcohol  is employed.  The alkoxide is phosphorylated to form a trialkoxyalkyl  phosphate.    The  alkoxidation  reaction and the phosphorylation reaction are both conducted in a non-oxidizing  atmosphere.   The  crude product  is  then refined by conventional means.
Patent CA-1189672-A (CA)
Inventor: CHARNIGA JOSEPH
IPC: E04B2/02
Filed: 1983-03-29
Granted: 1985-07-02
Abstract: ABSTRACT OF THE DISCLOSURE    An exterior load bearing wall construction having horizontally spaced vertically standing studding and outer and inner wall portions supported thereon, a plurality of closely spaced scallops formed in the inner surfaces of said studding to form narrow transverse areas therebetween, said outer wall portion extending only partially into areas of said wall construction between said outer wall portion and said inner wall portion and openings in said inner wall portion for ventilating said air space.
Patent CA-1211350-A (CA)
Inventor: LUND ANDERS E
IPC: B27N3/14
Filed: 1983-04-05
Granted: 1986-09-16
Abstract: FAN-SHAPED LOADER FOR MAKING A LOOSELY   FELTED MAT OF ALIGNED WOOD FLAKES                        ABSTRACT OF THE DISCLOSURE           Apparatus for forming an elongated continuous mat of elongated wood flakes mixed with a binder and adapted to be compressed to form a densified composite wood product for continuously depositing wood flakes on that supporting surface and for aligning the elongated wood flakes being deposited in mutually parallel relation and in alignment with the direction of movement of the supporting surface.  A hopper for containing wood flakes deposits wood flakes into the upper end of a fan-shaped flake loader comprised of a plurality of channels positioned in side-by-side relation and sloping downwardly from the hopper to a supporting surface. The channels are generally V-shaped in cross-section and converge toward their lower ends such that the wood flakes deposited in the upper ends of the channels become aligned in mutually parallel relation as the flakes slide down the channels and are deposited on the supporting surface.
Patent CA-1204049-A (CA)
Title: Process for the extraction of carbon monoxide from  gas streams
Inventor: FABIAN RAINER
IPC: C01B32/40
Filed: 1983-04-27
Granted: 1986-05-06
Abstract: ABSTRACT OF THE DISCLOSURE              Processes for the separation of carbon monoxide from feed gas streams polluted with nitrogen are disclosed, in which the feed gas streams, which preferably include hydrogen and methane therein, are supplied to a distillation column, and including the steps of distilling the feed gas stream to produce as the sump product a first carbon monoxide stream of substantially pure liquid carbon monoxide, and a distillation gas stream containing nitrogen therein, heating the sump in the lower portion of the distillation column by contact with a second carbon monoxide stream, withdrawing the sump product from the distilla-tion column, expanding the withdrawn sump product to reduce its temperature, cooling the distillation gas stream in the upper portion of the distillation column by contact with at least a portion of the expanded sump product, recycling at least a portion of the first carbon monoxide stream to provide the second carbon monoxide stream, and withdrawing at least a portion of the first carbon monoxide stream as a product stream.
Patent CA-1209655-A (CA)
Inventor: POKOJNY RUDOLF
IPC: H02G15/18
Filed: 1983-05-02
Granted: 1986-08-12
Abstract: S P E C I F I C A T I O N               CABLE JOINT PROTECTION                    ABSTRACT      This invention relates to the mechanical and environmental protection of cable joints, especially in power or other current-carrying cables.  Disclosed is a recoverable sleeve which conforms closely to the cable joint, and a liner which bridges the joint and comprises a plurality of elongate elements assembled into a sheet.  Flexible means is provided for holding the elements in a side-by-side arrangement and allowing the separation between the elements to vary to allow the liner to conform to the profile of the cable joint.          Such flexible means may extend across the element and provide a water vapour barrier.  Disclosed also is a method of protecting a cable joint utilizing the sleeve and liner.  Where the cables to be jointed  have metal armor, screen and/or shielding, the elements may be fabricated from metal or metal alloy and may then provide both armoring and a fault current path across the joint.  Use of these more closely conforming joint case assemblies improves heat transfer and reduces the overall size of the joint.
Patent CA-1208389-A (CA)
Inventor: WADA NORIAKI
IPC: C08L33/00
Filed: 1983-05-12
Granted: 1986-07-22
Abstract: ABSTRACT OF THE DISCLOSURE         A rubber composition capable of giving a non-tacky vulcanized rubber can be obtained by mixing 98 to 80% by weight of at least one organic rubber selected from natural rubber and organic synthetic rubbers and 2 to 20% by weight of a silicone raw rubber having a molecular weight of 100,000 to 1,000,000.  A conveyor belt in which at least the surface layer is composed of a vulcanizate of this rubber composition is suitable for carrying highly tacky substances such as oil sand
Patent CA-1203835-A (CA)
Inventor: SNELLING CHRISTOPHER
IPC: H04N1/29
Filed: 1983-05-20
Granted: 1986-04-29
Abstract: ABSTRACT   A dual mode reproduction machine or copier incorporating a full width read/write bar having at least one linear array of LEDs for selectively illuminating and scanning a document original in a read mode or exposing the copier photoreceptor in a write mode. A Selfoc lens array provides a lens element for focusing each LED, the read/write bar and lens array being combined in a unitary structure mounted for selective movement between a read and write position.
Patent CA-1198242-A (CA)
Inventor: KAWAI YOICHI
IPC: C08L51/02
Filed: 1983-06-02
Granted: 1985-12-17
Abstract: SPECIFICATION      Title of the Invention POLYPROPYLENE-BASE RESIN COMPOSITION     Abstract of the Disclosure A polypropylene-base resin composition which comprises:         (a) 80-60 wt.% of a crystalline ethylene-propylene block copolymer having an ethylene content of 11-30 wt.% and specific physical data;       (b) 5-35 wt.% of an ethylene-propylene copolymer rubber having a propylene content of 20-50 wt.% and a specific Mooney viscosity;         (c) 5-35 wt.% of an ethylene-propylene-a specific diene terpolymer having a propylene content of 20-50 wt.% and a specific Mooney viscosity; and (d) 2-5 wt.%, based on the total weight of the above resin components (a), (b) and (c), of an inorganic filler having a particle size of 3 µm or smaller.         The composition has excellent paintability and high stiffness, impact resistance and molding fluidity.
Patent CA-1195630-A (CA)
Title: Vermiculite as a carrier support for immobilized biological materials
Inventor: SWANN WAYNE E
IPC: C12P13/20
Filed: 1983-06-06
Granted: 1985-10-22
Abstract: Abstract Biological materials are immobilized by being absorbed into vermiculite particles which then are coated with a polymeric coating material.  A variety of cross-linking, condensing, and gelling agents may be used to strengthen and crosslink the polymer.
Patent CA-1190963-A (CA)
Inventor: BERGER MICHEL
IPC: H01M4/02
Filed: 1983-06-10
Granted: 1985-07-23
Abstract: ABSTRACT OF THE DISCLOSURE     The present invention relates to anodes of composite materials, which are formed on a support constituted by fibrils, which are coated with a conducting layer of copper of thickness comprised between 3 and 10 microns.  The copper layer is covered with a layer of cadmium of thickness comprised between 3 and 6 microns and the latter is covered with a layer of zinc of thickness greater than about 20 microns.
Patent CA-1237243-A (CA)
Inventor: PATTERSON DENNIS B
IPC: C08G61/00
Filed: 1983-06-21
Granted: 1988-05-24
Abstract: ABSTRACT OF THE DISCLOSURE              A NOVEL COMPOSITION AND PROCESS FOR      MAKING A PLASTIC RESIN         This invention relates to a plastic resin composition and the process for making it.  This invention discloses a plastic resin comprised of repeat units derived from (1) at least one member selected from the group consisting of meta-diisopropenylbenzene and para-diisopropenylbenzene and (2) at least one member selected from the group consisting of (a) meta-dialkoxybenzene, wherein said alkoxy moieties contain from 1 to 10 carbon atoms, (b) phenol and (c) 1-mercapto-3-alkoxybenzene, wherein said alkoxy moieties contain from 1 to 10 carbon atoms, (d) diaralkoxybenzene, wherein said aralkoxy moieties contain 7 to 12 carbon atoms and (e) 1,2,3-trialkoxybenzene, wherein said alkoxy moieties contain from 1 to 10 carbon atoms.
Patent CA-1201643-A (CA)
Inventor: BATCHELDER CLARENCE F
IPC: F15B15/14
Filed: 1983-07-18
Granted: 1986-03-11
Abstract: Servo Amplification System Abstract A Servo Amplification System is created particularly for heavy construction equipment, but has a general utility that is much broader.          The system utilizes a hydraulic analog system with a separate sub-system far each dimension of motion. The operator moves the operative element, such as the backhoe bucket, of the analog replica which ordinarily would be situated in the cab of the backhoe or other piece of equipment. A small hydraulic cylinder operative in response to movement at each articulated connection of the backhoe operates a pilot valve which controls a pilot piston mechanically linked to the drive valve of the drive cylinder of the corresponding articulation in the actual backhoe. A feedback system comprising a mechanical link from the actual drive piston to a feedback cylinder and piston delivers hydraulic fluid back to the inlets of the pilot valve in such a way as to cancel the pilot orders from the initial control cylinder. The resulting action is virtually perfect analog simulation by the actual backhoe of the movements of the replica backhoe.
Patent CA-1214030-A (CA)
Inventor: MUNSCH JOHN M
IPC: B29C65/78
Filed: 1983-08-19
Granted: 1986-11-18
Abstract: AUTOMATIC CONNECTION AND DISCONNECTION            Abstract of the Disclosure Apparatus for removing a first connector 22 from a second connector 34 and reconnecting the first connector with the third connector 50 by mechanical means so that the visually impaired can do it, without touching critical areas where sterility should be retained.  The apparatus finds particular use in the field of peritoneal dialysis where the catheter or set connecting to the patient must be disconnected from one container of solution and reconnected to another under the most aseptic conditions possible.  A platform 12 is provided having track means 14, 16 for permitting controlled movement of a first retention means 18 between a first position, permitting disconnection between the first and second connectors, and a second position permitting connection between the first and third connectors when the first, second, and third connectors are respectively carried in first, second, and third retention means 18, 32, 48.
Patent CA-1204623-A (CA)
Inventor: LECHTHALER JURG
IPC: A23L29/256
Filed: 1983-08-26
Granted: 1986-05-20
Abstract: Title:            FOOD PROCESS            Inventor: J?rg LECHTHALER     Abstract:        The invention relates to a process for the produc-tion of pasta based on starchy materials by gelatinisation, extrusion and drying. A flour or semolina of a starchy material is mixed with soft water and an ionic gelling agent to obtain a dough containing from 35 to 55 % of water, the dough is gelatinised by heating and kneading under pressure, is then cooled to a temperature below 100°C, extruded in the form of pasta, and the pasta is brought into contact with water containing a cation which forms a gel with the ionic gelling agent, and is dried. The pasta produced may be based on rice or maize alone.
Patent CA-1198835-A (CA)
Inventor: BISS RUDY
IPC: B03D1/014
Filed: 1983-09-14
Granted: 1985-12-31
Abstract: Abstract Niobium and tantalum containing pyrochlore is recovered from high silicate gangue content ore with good selectivity and yield employing collectors of formula          (1)                   (2) wherein R1, R2 and R3 are independently 8 to 16 carbon straight or branched chain alkyl groups, at pH 1.5 to 6.5.