baber/WOPTO huggingface dataset:
Patent CA-1216851-A (CA)
Inventor: QUARROZ DANIEL
IPC: C07D213/79
Filed: 1983-10-14
Granted: 1987-01-20
Abstract: ABSTRACT OF THE DISCLOSURE   Process for the production of 2-hydroxypyridines having the formula:       from 2-pyridine carboxylic acid-N-oxides having the formula:       wherein R is H, a -COOH group, an alkyl group having 1 to 8 carbon atoms or an aryl group and n designates a number between 1 and 4.  The N-oxide is converted using lower aliphatic carboxylic acld anhydrides in the presence of a tertiary amine.          The conversion product is then hydrolyzed.
Patent CA-1212804-A (CA)
Title: Meltblown die and method
Inventor: LAU JARK C
IPC: D04H1/56
Filed: 1983-10-28
Granted: 1986-10-21
Abstract: ABSTRACT OF THE DISCLOSURE Improvement to the die and method of forming meltblown fibers and webs using a relatively cool fluid for meltblowing.  Thermoplastic polymers such as polyolefins, polyamides, polyesters and the like are spun in accordance with the meltblowing process and contacted by a fluid which forms fibers and attenuates them.  In accordance with the invention, the fluid is substantially cooler than the molten polymer and permits formation of webs at shorter forming distances greatly improving web formation.  In addition, the costs o  manufacture are improved since heating of the attenuating fluid may be reduced or avoided.  In a particularly preferred embodiment, the die is provided with insulation between the attenuating fluid and the polymer chamber to avoid or reduce the tendency of the molten polymer to cool and cause plugging of the die.          Alternatively, the die may, itself, be formed from an insulating material.  Webs produced in accordance with the method and die or the present invention display highly desirable properties  such as uniformity, softness, opacity, cover and the like.
Patent CA-1218523-A (CA)
Title: Apparatus for preparing high melting point high  toughness metals
Inventor: KIMURA ETSUJI
IPC: C22B5/04
Filed: 1984-02-22
Granted: 1987-03-03
Abstract: Abstract of the Disclosure A hermetically closable and evaculable apparatus for preparing high melting point high toughness metals by reduction of a chloride of said metals comprising a heatable reaction chamber and a coolable condensation chamber provided above the reaction chamber which chambers communicate each other through an intermediate connecting section, wherein the intermediate connecting section is provided with a seal pot closing mean comprising a funnel body and a pan which can be opened to form a wide gas passage, is disclosed.
Patent CA-1215369-A (CA)
Inventor: BAILEY DENIS M
IPC: C07D233/06
Filed: 1984-03-13
Granted: 1986-12-16
Abstract: ABSTRACT 2-(2-Naphthalenyl)alkyl-4,5-dihydro-1H-imidazoles and -tetrahydropyrimidines, the corresponding 3,4-dihydro-naphthalenyl and 1,2,3,4-tetrahydronaphthalenyl compounds; and the corresponding indene and indane derivatives, useful as antidepressant or diuretic agents, are prepared by reacting the appropriate 2-(cyanoalkyl)naphthalene or -indane derivative (or the corresponding ester or imino-ether) with an alkylenediamine.
Patent CA-1225409-A (CA)
Title: Alkyl polyethylene glycol alkyl ethers as foam-  inhibiting additives in low-foam cleaning agents
Inventor: SCHMID KARL
IPC: C23G5/00
Filed: 1984-04-26
Granted: 1987-08-11
Abstract: ALKYL POLYETHYLENE GLYCOL ALKYL ETHERS AS FOAM-INHIBITING     ADDITIVES IN LOW-FOAM CLEANING AGENTS              ABSTRACT OF THE INVENTION       Polyethylene glycol ethers corresponding to the following formula R1 - 0 - (CH2CH2O)n - R2 in which R1 represents a linear or branched alkyl or alkenyl radical containing from 8 to 18 carbon atoms, R2 represents an alkyl radical containing from 4 to 8 carbon atoms and n is a number of from 7 to 12, mixtures of the same with a poly-glycerol polyethylene glycol alkyl ether of 1 part by weight of polyglycerol having a hydroxyl number in the range of from 900 to 1200 adducted with from 4 to 20 parts by weight of ethylene oxide and etherified at the free hydroxyl groups with alkyls having from 4 to 8 carbon atoms, and their use as foam-inhibiting additives for low-foam cleaning agents.
Patent CA-1259071-A (CA)
Inventor: LEINERT HERBERT
IPC: C07D209/88
Filed: 1984-05-23
Granted: 1989-09-05
Abstract: ABSTRACT OF THE DISCLOSURE     R-carbazole and S-carbazole derivatives are provided of the formula (I):                       (I) in which R10 is an unsubstituted or substituted amino radical and their pharmacologically compatible, pharmaceutically acceptable salts as well as processes for their preparation which permits production of the antipodes in pure form, the pharmacological effective-ness of the antipodes differ from that of the corres-ponging racemates and by selecting the ratio of R-and S-enantiomer the most favourable relationship of the different activities of the enantiomers can be obtained, pharmacological activity includes activity as .beta.-blockers and lowering of blood pressure.
Patent CA-1230631-A (CA)
Inventor: GEREMIA LEO
IPC: H01H25/06
Filed: 1984-05-29
Granted: 1987-12-22
Abstract: ABSTRACT OF THE DISCLOSURE     A switch assembly of the rotary and/or push-pull type is made up of a plurality of stacked switch section including rotary switch sections and/or push-pull switch sections, all actuated by a common central shaft.  In the rotary sections, there are at least one pair of terminals, a rotary cam rotatable with the shaft, a substantially rigid cam follower contact arm biased against the rotary cam and movable, with rotation of the cam, between open and closed positions.  The contact arm is hinged on and electrically connected with one of the pair of terminals.  The other end of the contact arm has a dog-leg section and a resilient conductive leaf, favorably formed of beryllium-copper, on which a movable contact is mounted.  The flexing of the leaf brings about wiping action of the movable contact when it closes onto a fixed contact connected with the other terminal.  The push-pull switch sections have an axially movable carrier also including a flexible resilient leaf member on which movable contacts are mounted.  The movable contacts of the push-pull switching sections also close with a wiping action on their mating fixed contacts.
Patent CA-1210788-A (CA)
Inventor: GANDRUD DALE E
IPC: A01M9/00
Filed: 1984-06-29
Granted: 1986-09-02
Abstract: GRANULAR MATERIAL APPLICATOR WITH SPEED COMPENSATOR            ABSTRACT     The specification discloses an applicator (10) for precisely dispensing granular materials, such as her-bicides, pesticides and the like, with improved control while compensating for the speed and travel direction of the implement carrying the applicator.  The applicator (10) comprises a hopper (14) with an arcuate hopper bot-tom extension (40) and an internal feed rotor (42).  The arcuate hopper bottom extension (40) is preferably inclined, and the openings (44) in the end preferably include straight lowermost sides oriented parallel to the rotational axis of the feed rotor (42) to obtain better flow control in conjunction with a revolving transfer means (54) located beneath and closely adjacent to the bottom end of the hopper.  The revolving transfer assembly (54) preferably includes a plurality of rollers (56) for individually receiving material from the ope-nings (44) in the hopper and distributing it for applica-tion.  The feed rotor (42) and transfer assembly (54) are vertically and laterally offset and are interconnected for counter rotation in unison responsive to travel of the applicator (10) such that the rate of material application is directly proportional to the speed of travel.
Patent CA-1238465-A (CA)
Inventor: HACKMAN LLOYD E
IPC: B22D11/06
Filed: 1984-08-16
Granted: 1988-06-28
Abstract: Abstract A heat extracting substrate is moved along a melt front formed at the edge of the surface of a molten material so that a layer of molten material is deposited on the substrate, cooled and removed from the substrate to form ribbon, filaments, fiber or film directly from the molten material . The edge may be formed by providing an upper edge upon a portion of the wall of a receptacle lower than the top of the receptacle.  The molten material may be overflowed over this relatively horizontal edge and against the moving substrate surface.
Patent CA-1216853-A (CA)
Inventor: CARCIA PETER F
IPC: C07C265/00
Filed: 1984-08-30
Granted: 1987-01-20
Abstract: TITLE IMPROVED CATALYST ABSTRACT         Monomethylformamide is converted to methyl isocyanate by reaction with oxygen in the presence of an inert diluent gas at 300-600°C using as catalyst sputtered silver or silver/gold on an inert, hard, nonporous support.
Patent CA-1227267-A (CA)
Inventor: SMITH LOUIS W
IPC: H04M3/51
Filed: 1984-10-05
Granted: 1987-09-22
Abstract: TITLE SECRETARIAL TELEPHONE STATION FOR USE WITH A         SECRETARIAL ANSWERING SYSTEM  ABSTRACT OF THE DISCLOSURE A secretarial telephone station for use with a secretarial answering system and a switching system which includes a plurality of subscriber telephone stations each equipped with a buzzer.  The secretarial answering system is connected to the subscriber trans-mits subscriber station busy, idle and ringing status and line identification information to the secretarial station.  The secretarial station includes a lamp and switch pair for each subscriber station, a processing unit and an audible signalling circuit.  The processing unit receives this information and causes the lamp associated with each of the subscriber stations to display dark, lit or flashing signals corresponding to the idle, busy and ringing status.  The processing unit also causes the audible signalling circuit to provide a ringing tone wherever a lamp is flashed.  In response to operation of the switch associated with a called subscriber station, the processing unit transmits a directed call pickup or a call transfer message to the switching system.  It also transmits a buzzing re-quested message to the secretarial answering system in association with said call transfer message.  The directed call pickup message identifies the subscriber station whose incoming call is to be transferred to the secretarial station for screening.  The call transfer message identifies the subscriber station which is to receive a screened call.  The buzzing requested message informs the secretarial answering system to cause the subscriber station's buzzer to provide an audible signal indicating that the current incoming call has been screened by a secretary.
Patent CA-1242288-A (CA)
Inventor: VUONG DINH-CUONG
IPC: C02F1/54
Filed: 1985-01-18
Granted: 1988-09-20
Abstract: METHOD OF REDUCING THE NICKEL CONTENT            IN WASTE WATER   (D#77,899 -F) ABSTRACT OF THE DISCLOSURE         The nickel content of a waste water stream, such as a stream of grey water that is separated in the decanting operation of a partial oxidation process or blow-down water from a gas quench cooling and/or scrubbing operation is reduced to below 1 mg/1 to produce an environmentally upgraded water stream.  In the process, the dilute waste water stream containing nickel impurities at a temperature in the range of about 60 to 220°F is mixed with a water soluble material selected from the group consisting of formaldehyde, ionizable polysulfide salt, and hydrogen peroxide; and with dimethyl glyoxime.  The pH is adjusted to a value in the range of over 7 to 11 by the addition of a base material and a water insoluble nickel precipitate forms.  The precipitate and other insoluble matter are separated from the water by means of at least one conventional solids-liquid separator, and a stream of upgraded water is produced.  At least a portion of the upgraded water stream may be recycled to the gas quench cooling and/or scrubbing operation.  The nickel content of the upgraded water stream has been reduced to conform with environmental regulations.  Further, build up of nickel in the recycle circulating water system and the formation of troublesome nickel carbonyl are prevented.
Patent CA-1239608-A (CA)
Title: Process for preparing optically-active-4-amino-3- hydroxybutyric acid
Inventor: SIH CHARLES J
IPC: C07C227/04
Filed: 1985-01-22
Granted: 1988-07-26
Abstract: Abstract The present invention relates to processes for preparing optically-active 4-amino-3-hydroxybutyric acid by asymmetrically clearing one of the enantiotopic ester groupings of 3-hydroxyglutaric diester by the action of microbial enzymes to obtain a chiral monoacid which is readily converted into optically-active 4-amino-3-hydroxybutyric acid by chemical means.
Patent CA-1261987-A (CA)
Inventor: WARD ROBERT S JR
IPC: C08L75/04
Filed: 1985-02-11
Granted: 1989-09-26
Abstract: Abstract of the Disclosure A polymer admixture is formed from a base polymer and thermoplastic copolymer additive including polar hard segments and polar and nonpolar soft blocks in graft or block copolymer form.          The polymer admixture is characterized by increased contact angle hysteresis and is formed into blood and tissue-contacting surfaces of a biomedical device or into textiles.  A preferred additive comprises a segmented block copolymer having polydialkylsiloxanes as nonpolar soft blocks, and a polyurethane as hard segments and a polyalkylene oxide as a polar soft block.
Patent CA-1273050-A (CA)
Inventor: YOSHIZAWA KENJI
IPC: H01J65/04
Filed: 1985-03-01
Granted: 1990-08-21
Abstract: ABSTRACT   In a microwave discharge light source apparatus for effecting discharge of an electrodeless discharge lamp held in a cavity which causes resonance by microwaves, the wall surface of the cavity resonator is constituted by a mesh and wires constituting the mesh, are electrically connected at each crossing point without resistance of contact.  Effective discharging of the lamp is attainable and the cavity has a mechanically strengthened structure.
Patent CA-1242089-A (CA)
Inventor: STEINBOCK ROLF H W
IPC: F16B31/04
Filed: 1985-03-13
Granted: 1988-09-20
Abstract: ABSTRACT OF THE DISCLOSURE    A plurality of jack bolts are threadedly engaged with openings in a flange on a fastener to stress a shank part of the fastener.  The flange can be a collar retained on a shaft by a retainer, a nut on a threaded end of a bolt or the head portion of a bolt.  The jack bolts can be arranged in a flange on an end of the tension rod to stress arbors against opposite sides of a roll sleeve to form a roll assembly for use in a rolling mill.
Patent CA-1241732-A (CA)
Inventor: DE VRIES ROBERT
IPC: H04R25/02
Filed: 1985-03-20
Granted: 1988-09-06
Abstract: ABSTRACT-"Hearing aid, in particular a behind-the-ear hearing aid".           The hearing aid, in particular a behind the-ear hearing aid (1, 2) comprises: 2         a first unit (1) comprising an amplifier (4), a part- the hook (3) - formed with a duct (16) and a space (8), a second unit (2) comprising an electro-acoustic transducer (12), which second unit is intended to be worn in the ear, A tubular element (15) for the mechanical connection of the two units (1, and 2, respectively), which tubular element accommodates connecting means (14) for electrically coupling the transducer (12) to (an output of) the amplifier (4).          The duct (16) has such a diameter that, if the element (15) has not been secured inside the hook (3), the element (15) is axially slidable inside the duct (16). This enables the hearing aid to be adapted to the size of the ear of the person wearing the hearing aid. The connecting means (14) have such a length that even in the case of adaptation of the hearing aid to a big ear the electrical connection is still in tact or can be made. When the hearing aid is adapted to a smaller ear, the connecting means (14) are in fact too long. The space (8) is intended for taking up the excess length of the connecting means (14).            (Fig. 1).
Patent CA-1226813-A (CA)
Inventor: GUPTA RAMESH
IPC: B01J10/00
Filed: 1985-03-21
Granted: 1987-09-15
Abstract: ABSTRACT OF THE DISCLOSURE         The invention automatically provides for periodic surge flow or liquid slugs in the catalyst bed to insure that the catalyst is periodically fully wetted. Therefore, before dry spots develop in the bed and some catalyst particles are deprived of the liquid reactants, the aforesaid liquid pulse or slug will newel the catalyst. In accordance with applicant's invention, this desired periodic introduction of a liquid slug through a catalyst bed is accomplished by the provision of a plurality of automatically actuating and operating siphon means disposed and distributed across the area of the distributor tray means within the reactor.
Patent CA-1257092-A (CA)
Inventor: MERRELL GENE A
IPC: C10L10/00
Filed: 1985-03-25
Granted: 1989-07-11
Abstract: Abstract of The Disclosure In a coal fired boiler of the type having a combustion zone in which said coal is fired, a convection zone located downstream from said combustion zone and having a plurality of heater tubes disposed therein adapted to heat water or steam disposed therein, and in which convection zone combustion resi-dues emanating from said coal have a tendency to stick to or agglomerate upon said tubes, a method of decreasing said tenden-cy to stick or agglomerate, comprising burning said coal in the presence of an additive consisting essentially of super large magnesium oxide particles, a major mass fraction of which is about 150 microns in diameter or greater.
Patent CA-1240474-A (CA)
Inventor: BELTZ THOMAS G
IPC: E04C3/04
Filed: 1985-06-03
Granted: 1988-08-16
Abstract: ABSTRACT   A truss  system  component  comprising  upper  and lower chord members, a plurality of first strut members extending between  the chord members  for  maintaining  the  chords  in vertically spaced apart relation, the upper and lower chord members providing pin connections for pivotally connecting said first strut member to the lower chord at substantially equally spaced points along the chord,  and a plurality of second strut members extending between the chord members for maintaining the chords in vertically spaced apart relation, each of the second struts being at its lower end pivotally connected to one of the first strut members at each of the first points along  the  lower chord and  at  its  upper end being  pivotally  connected  to  the  upper  chord  member  at substantially equally spaced second points therealong.
Patent CA-1268016-A (CA)
Inventor: DEJAIFFE ROBERT
IPC: E01F9/04
Filed: 1985-06-05
Granted: 1990-04-24
Abstract: Abstract of the Disclosure A reflective marker for highway striping, signs and other surfaces is produced from a multiplicity of thermoplastic or thermosetting granules in the shape of tetrahedrons.  A plurality of glass spheres having a diameter in the range of from about 6.0 microns to about 0.125 inches are substantially evenly dispersed throughout each granule with some of the spheres protruding through the outer granule surfaces.  To form the granules the glass spheres, the granule material and a suitable pigment are mixed together and then applied to a flexible sheet or a roller containing a multiplicity of tetrahedron-shaped indentations.  The mixture is urged into each of the indentations and is then cured.  The resulting granules are removed from the indentations and are dropped from a random position onto a freshly painted highway line or other surface such that one of the flat faces on each granule is disposed in a downward direction.  As the paint dries and hardens, the granules are firmly held in place on the surface to provide a reflective marker.
Patent CA-1238367-A (CA)
Inventor: CLUNIAT CLAUDE
IPC: H03G3/34
Filed: 1985-06-14
Granted: 1988-06-21
Abstract: ABSTRACT OF THE DISCLOSURE         The device for limiting the transmission power of radiowave transmitters comprises a limiting stage for attenuating the signal to be amplified before applying it to the input of the amplifying chain.  A coupler collects part of the signal in order to apply it to the input of control means.  A delay device is coupled between the coupler and the limiting stage and delays the signal to be amplified before applying it to the input of the limiting stage.  The control means block the limiting stage in order to prevent transmission of the signal to be amplified to the input of the amplifying chain when the level of the signal to be amplified overshoots a predetermined amplitude and hold the limiting stage in the blocked state after the level of the signal to be amplified has fallen back below the predetermined threshold during a sufficient period of time which is calculated so as to prevent any power overshoot.
Patent CA-1262164-A (CA)
Inventor: CHABALA LEONARD V
IPC: H01H33/42
Filed: 1985-06-27
Granted: 1989-10-03
Abstract: ARRANGEMENT FOR PROVIDING INDEPENDENT    ROTARY AND LINEAR DRIVE OUTPUTS     FOR HIGH-VOLTAGE SWITCHES                                 ABSTRACT   An arrangement including an insulative support column provides inde-pendent rotary and linear drive outputs for the operation of electrical switches, circuit interrupters and/or disconnects or the like. A first, linear drive linkage provides translating motion at a first output in response to linear translating motion at a first input. The linear drive arrangement is provided by an elongated, insulative operating member that is disposed within an elongated bore of the insulative support column, with the operating member extending through the top and bottom ends of the column. A second, rotary drive output is provided by rotation of the supportcolumn. The column fixedly carries a lower base member which is rotatably supported within a base housing. The operating member extends through and exits the base member and cooperates with a bearing carried by the base member. The lower end of the operating member is coupled to the linear drive linkage input. The support column is rotated by means of a suitable drive linkage attached at the lower end of the column. A tubular shaft is fixedly carried at the top of the column, the operating member extending therein. Rotation of the tubular shaft is coupled through suitable linkage to drive a disconnect or the like. For interrupters that are mounted generally perpendicular to the longitudinal axis of the support column, the cylindrical wall of the tubular shaft is cut away to provide for the output connection of the operating member to a transfer linkage without interference from the rotation of the tubular shaft.
Patent CA-1240464-A (CA)
Inventor: MATSUDA HIROMICHI
IPC: B29K27/06
Filed: 1985-07-29
Granted: 1988-08-16
Abstract: METHOD FOR MANUFACTURING FOAMED PLASTICS                 Abstract of the Disclosure A method  for manufacturing  a predetermined shape of molded  plastics,  comprising  the  steps  of introducing  a foamable shell forming material in molding dies, introducing a  hard core forming  material having a foaming agent on the shell  forming material, clamping the molding dies together, and heating both the material located in the molding dies by an induction heating.
Patent CA-1238561-A (CA)
Inventor: SCHALLMEIER GUENTER
IPC: B29D30/52
Filed: 1985-07-30
Granted: 1988-06-28
Abstract: TITLE OF THE INVENTION:               UNVULCANIZED TREAD STRIP FOR  PNEUMATIC VEHICLE TIRES ABSTRACT OF THE DISCLOSURE:     An unvulcanized tread strip for a pneumatic ve-hicle tire.  The tread strip includes two or more superimposed layers.  In order to improve the adhesion of these layers, adjacent layers of the tread strip are provided with a plurality of projections and cor-responding recesses which positively intermesh with one another.