baber/WOPTO huggingface dataset:
Patent CA-1185618-A (CA)
Inventor: FERRIS THEODORE V
IPC: C07C45/00
Filed: 1982-12-22
Granted: 1985-04-16
Abstract: MANUFACTURE OF AQUEOUS FORMALDEHYDE ABSTRACT Formaldehyde manufacture by oxidative-dehydro-genation of methanol over a silver or copper catalyst. Aqueous formaldehyde solution is obtained from the reaction and is stripped of a mixture of methanol, formaldehyde and water by a low energy process at relatively low temperature and low reflux in a still comprising at least about 1.5 theoretical plates, the stripping conditions being selected to allow substantial reduction of the methanol content of the aqueous form-aldehyde solution and recycle of the methanol to the reactor.
Patent CA-1206583-A (CA)
Inventor: YOSHIDA TAKASHI
IPC: G01S15/42
Filed: 1983-01-18
Granted: 1986-06-24
Abstract: ABSTRACT OF THE DISCLOSURE      An underwater detection system which has a trans-mitting and receiving unit for radiating an ultrasonic wave pulse into the water within a narrow sector and receiving echo signals by a plurality of reception beams, and turns the transmitting and receiving unit by a pre-determined angle to search another narrow sector each time the search within the narrow sector is completed, thereby searching the water within a wide angular range.
Patent CA-1194355-A (CA)
Inventor: KANDO TORU
IPC: C10L5/12
Filed: 1983-02-08
Granted: 1985-10-01
Abstract: ABSTRACT OF THE DISCLOSURE         A cover-equipped camera includes a cover movable bet-ween right and left at the front of a camera body to shield or expose its lens and finder, and a fixed cover with and from which the movable cover is contacted or released respectively.          The opening and closing cover is effected by a mechanism which includes a sliding guide member integral with the cover, and sliders extending from the camera body.  The movable cover is guided and slid with the sliders fitted into slots formed in the sliding guide member.  When the movable cover is to be opened for exposure, a lock lever is released by the action of an operating lever to quickly open the movable cover.  The movable cover is also maintained open by a magnetic  force. The cover-equipped camera can achieve protection and dust-free effects, has excellent quick shuttering capacity, and can take photos without failure.
Patent CA-1182807-A (CA)
Inventor: ZIELKE CLYDE W
IPC: C10G1/08
Filed: 1983-02-09
Granted: 1985-02-19
Abstract: A method of hydrocracking using a zinc catalyst in the hydrogenation step comprising providing a hydrocarbonaceous feed of coal or tar to a hydrogenation means, removing spent zinc and catalyst from said hydrogenation means to a regene-ration means, heating said spent zinc catalyst in said regene-ration means, providing hydrogen chloride to said regeneration means, said spent zinc catalyst comprising ZnS, whereby ZnCl2 gas is formed, contacting at least a portion of said ZnCl2 with steam to form ZnO, conveying said ZnO and ZnCl2 to said hydrogenation means.
Patent CA-1168059-A (CA)
Inventor: PRYOR ROGER W
IPC: G01L1/18
Filed: 1983-04-05
Granted: 1984-05-29
Abstract: SEMICONDUCTOR STRAIN GAUGE               ABSTRACT OF THE DISCLOSURE          A semiconductor strain gauge comprises an elastic member having a surface subject to stress; a semiconductor substrate secured to the elastic member and including at least one PN junction wherein both the P type and N type material is composed of amorphous semiconducting material; and an electrical connection for conducting a signal indicative of strain.
Patent CA-1202323-A (CA)
Inventor: KLEINER HANS-JERG
IPC: C07F9/52
Filed: 1983-05-02
Granted: 1986-03-25
Abstract: Abstract of the disclosure:     Dichlorophenylphosphane, C6H5PCl2, is pre-pared by reacting chlorodiphenylphosphane, (C6H5)2PCl, with phosphorus trichloride, PCl3, at temperatures between about 295 and 700°C. In the lower part of this tempera-ture range, i.e. from about 295 to 500°C, the reaction is preferably carried out under superatmospheric pressure, in particular under autogenous pressure, while in the upper part of the temperature range, i.e. from about 500 to 700°C, atmosphcric pressure is preferably used.          Dichlorophenylphosphane is in the main a valuable inter-mediate in various fields, such as, for example, the crop protection and the polymer sectors.
Patent CA-1199432-A (CA)
Inventor: AHOLA REIJO
IPC: H04Q11/04
Filed: 1983-05-02
Granted: 1986-01-14
Abstract: Abstract:         The invention relates to a digital multiplex device for the branching of a digital information stream. In rather little telephone networks, in particular in individual networks which comprise a few intermediate stations and terminal stations, in the digital transmission technique a need has arisen to branch groups comprising less than 30 channels.  In order that this could be accomplished completely digitally, i.e. without first decoding the signals to voice-frequency signals, a device has been developed which comprises four controllable connectors, four time multiplexers and two frame phasers and two control units for controlling the controllable connectors and the time multiplexers.  Structurally, the device comprises two identical units, and it is also suitable for the branching of other digital information, besides data signals that have a frame structure as per standard.  Moreover, the transmission rate of the branched line may be different from that of the main line when a rate modifier is used.
Patent CA-1202321-A (CA)
Title: Process for the production of one or more carboxylic  acid anhydrides
Inventor: RAY DAVID J M
IPC: C07C53/12
Filed: 1983-05-18
Granted: 1986-03-25
Abstract: ABSTRACT OF THE DISCLOSURE     An olefln is reacted with an alcohol and carbon monoxide using a halide promoted rhodium or iridium catalyst to form an anhydride of a carboxylic acid, for example, ethylene is reacted with methanol and carbon monoxide to form a mixture of acetic and propionic anhydrides.  The reaction rate is improved by including a quaternary ammonium or phosphonium copromoter.  Desirably water is excluded from the reaction.
Patent CA-1224469-A (CA)
Inventor: CHERPECK RICHARD E
IPC: C07D213/30
Filed: 1983-07-14
Granted: 1987-07-21
Abstract: ABSTRACT OF THE DISCLOSURE 3-pyridyl ethers of this invention possess good fungicidal, herbicidal and plantgrowth regulating activity.
Patent CA-1195573-A (CA)
Inventor: KATZ JAY W
IPC: A61F7/12
Filed: 1983-07-14
Granted: 1985-10-22
Abstract: METHOD AND MEANS FOR TREATING SYMPTOMS    OF MENIERE'S DISEASE OR THE LIKE                 ABSTRACT OF THE DISCLOSURE      Binaural thermal-response differentials which are symptomatic of vertigo, particularly Meniere's disease, are treated by establishing a thermal treat-ment operative via liquid contact with at least one eardrum, thereby establishing a difference in thermal exposure of one ear with respect to the other.  Portable apparatus of the invention enables the patient to apply his own therapy whenever he senses onset symptoms of an attack.  In certain cases, the apparatus is also useful for prophylactic treatment on an intermittent basis, to foreclose or substantially reduce chances of an attack in periods between treatments.
Patent CA-1233143-A (CA)
Inventor: ROZMUS WALTER J
IPC: G01F23/22
Filed: 1983-08-31
Granted: 1988-02-23
Abstract: TITLE     An Assembly for Filling A Container (Probe).                 ABSTRACT OF THE DISCLOSURE    An assembly for filling and sealing a cavity (14) in a container (10).    The assembly includes a fill passage (18)  in  sealing  engagement  with  the  periphery  of  the receiving passage (12) in the container (10).   A vacuum source (24) withdraws gas from the container (10) and the assembly.  Powdered material under a vacuum is supplied to a vibrating platform  (44)  which dispenses  the material while vibrating  so that  the material  passes  through  a valve  (48,   52),  the  fill  passage  (18)  and  into  the container (10).    A plug magazine (26,   125) stores and delivers one spherical ball  (28)  at a time to the fill passage (18) for being forced into the receiving passage (12) to seal the container (10).   A vacuum valve (48, 52) seals the material supply from the fill passageway (18) to maintain  the  vacuum  in  the  material  supply  when  the container (10) is received.  A probe (74) has a thermistor at the lower end which changes resistance in response to a change in temperature which occurs upon the material level in the container reaching the lower end of the probe (74), in response to which the vibration of the material supply platform (44) is stopped.  The probe (74) is retracted and the snout (68) is moved downwardly to force a ball (28) into  the  receiving passage  (12)  to  seal  the  container (10).    The vacuum valve (52) is closed,  the source of vacuum is closed and the sealed container (10) is received and replaced by another empty container.
Patent CA-1193799-A (CA)
Inventor: STOTT PAUL E
IPC: C08J9/06
Filed: 1983-09-01
Granted: 1985-09-17
Abstract: ABSTRACT      Provided is a foamable polyester resin composition and a method for making the same.  The composition comprises (a) a liquid unsaturated polyester resin, (b) an azocarboxylate, (c) an organic peroxide or hydro-peroxide, (d) a proton donor, (e) a metal promoter, (f) optionally a surfactant, and (g) optionally a filler.
Patent CA-1215723-A (CA)
Inventor: BATOREWICZ WADIM
IPC: C07C209/68
Filed: 1983-09-08
Granted: 1986-12-23
Abstract: ABSTRACT      Disclosed is a process for the preparation of p-nitrosodiphenylamine hydrochloride comprising reacting diphenylamine, C5-C10 alkyl nitrite and anhydrous HCl in the presence of a C5-C10 aliphatic alcohol and essentially in the absence of an aromatic solvent.
Patent CA-1203328-A (CA)
Inventor: BRETSCHER ULRICH
IPC: C02F3/20
Filed: 1983-09-14
Granted: 1986-04-15
Abstract: Abstract of Disclosure Blockages in bottom aerators in the treatment of water and sewage are eliminated or prevented under operating conditions. For this purpose, a chemical is introduced into the gas fed into the aerators without taking the aerators out of operation. The chemical converts the blocking material at least partly into a form which is soluble in the water or sewage to be treated.
Patent CA-1245489-A (CA)
Inventor: HAAG HELMUT
IPC: G02B6/44
Filed: 1983-12-20
Granted: 1988-11-29
Abstract: ABSTRACT OF THE DISCLOSURE       An optical cable composed of a common sheath and a plurality of elongate basic elements enclosed by the common sheath, each basic element being composed of a stable sheath and at least one optical fiber housed and loosely guided in the stable sheath, and the plurality of basic elements being assembled together to form a plurality of basic units each of which is composed of several basic elements and is deformable transverse to the length of the basic elements.  The plurality of basic units is assembled together to form at least one cylindrical layer of the cable, with each basic unit in the circular layer having a noncircular cross-sectional configuration which is flattened in the radial direction of the cable, while the stable sheaths of the basic elements are not significantly deformed, as a result of a deformation pressure exerted radially inwardly on the circular layer.
Patent CA-1225366-A (CA)
Inventor: EAST JOHN
IPC: B21C35/02
Filed: 1984-01-31
Granted: 1987-08-11
Abstract: ABSTRACT CONTINUOUS EXTRUSION OF METALS         A continuous extrusion machine in which feedstock is admitted (at 50) to a peripheral groove (12) in a rotating wheel (10), is enclosed in that groove by a cooperating shoe (24), and is frictionally dragged along the arcuate passageway (48) formed by said groove and a projecting portion (30) of said shoe towards an abutment (36) carried by the shoe.  The pressure in the metal in front of the abutment continuously extrudes a metal product through a die (42).  The abutment tip and adjacent wheel parts disposed downstream of the abutment are cooled directly by a jet of cooling fluid issuing from a nozzle (64) carried downstream on the shoe.  An annular band (Figure 2, 74) of a good thermally-conductive metal embedded concentrically in the wheel enhances the cooling obtained.  Flash (68) extruded through clearance gaps (32, 34) between cooperating wheel and shoe surfaces is intercepted and broken off periodically, in short lengths, by teeth 70 projecting from the wheel.  The radial depth of the passageway (48) progressively decreases in the direction of wheel rotation in a zone extending upstream from the abutment (36), so as to improve in that zone, in the case of particulate or comminuted feedstock, the metal flow pattern adjacent the abutment, such feedstock in that zone being in a fully compacted condition without voids. This is achieved by the shaping of a surface (40A) of a die block (40) which adjoins the abutment (36) and incorporates the die member (42).  That shaping produces with particulate or comminuted feedstock a metal flow pattern closely resembling that achievable with feedstock in solid form.  A continuous extrusion product (Fig. 5, 102) issuing from a continuous extrusion apparatus (Fig. 1, 10; Fig. 5, 100) is threaded through e treatment die (104) whereby to change its cross-section and is continuously drawn therethrough by a tensioning device (106,112) under the control of a system which (a) senses the temperature of the product (102) as it leaves the extrusion apparatus (100); (b) converts a temperature signal (120) so produced, in a function generator (124), into a tension reference signal (126); (c) compares with that tension reference signal a tension feedback signal (116) derived from a sensor (118) adjacent the extrusion apparatus; and (d) controls the tensioning device in accordance with the difference of the tension reference and feedback signals so as to prevent the sensed tension in the product extending between the extrusion apparatus (100) and the treatment die (104) from exceeding a safe value which is less than the yield stress tension of that product at the sensed temperature.
Patent CA-1219689-A (CA)
Inventor: SIPILAE HEIKKI J
IPC: G01N23/223
Filed: 1984-03-21
Granted: 1987-03-24
Abstract: METHOD FOR TAKING THE RADIATION BACKGROUND INTO ACCOUNT IN THE DETERMINATION OF RADIATION INTENSITIES OF ANALYSED SAMPLES            ABSTRACT OF DISCLOSURE            According to the method of the invention, samples under-going analysis for sorting are irradiated one by one in order to excite X-ray fluorescence. In order to take into account the background radiation, the quality whereof varies according to the frequency of the excited radiation, the radiation peak intensity I1 is measured, as well as the respective intensity I2 is measured at the same point of the radiation spectrum but in an essentially wider frequency range than the radiation peak.  On the basis of the measured intensities I1 and I2 are defined the intensities of the X-ray fluorescence F and the background radiation T, and the ratio of these two is used as the selective criterion when sorting the analysed samples.
Patent CA-1248126-A (CA)
Inventor: HAMMAR W JAMES
IPC: C08F220/26
Filed: 1984-05-18
Granted: 1989-01-03
Abstract: Abstract of the Disclosure Polymerizable monomer compounds selected from the group having the formulae:                     or          I                         II   wherein R is hydrogen or methyl; X is fluoro, chloro, bromo, iodo, hydroxyl, perfluoroalkylsulfonoxy of one to three carbon atoms, perfluoroacyloxy of one to three carbon atoms, benzoyloxy, or trichloroacetoxy; Y is trichloroacetyl, perfluoroacyl of the formula   trialkylsilyl of the formula [CH3(CH2)m]3Si- or hydrogen, wherein n is zero to six; and m is zero to three, with the proviso that when Y in Formula I or II is hydrogen, X is selected from fluoro, chloro, bromo, iodo in Formulas I and II, and additionally from hydroxyl in Formula I, are disclosed.  Polymers and copolymers of the invention are useful for preparing hydrogel processed articles such as contact lenses, and when dissolved in solvents they can be coated onto articles and then hydrolyzed to provide hydroyel coatings.
Patent CA-1245259-A (CA)
Inventor: GAMBLIN RODGER L
IPC: C25D7/00
Filed: 1984-05-30
Granted: 1988-11-22
Abstract: AMORPHOUS TRANSITION METAL ALLOY, THIN GOLD COATED, ELECTRICAL CONTACT     ABSTRACT OF THE DISCLOSURE An electrical contact, and a method of forming an electrical contact, result in a structure that may utilize fax less gold than conventional electrical contacts while having the same, or superior, desirable properties.  The electrical contact includes an electrically conductive substrate with an amorphous transition metal alloy electrolytically deposited on the substrate.  The amorphorus transition metal alloy is a nickel phosphorus, or nickel cobalt phosphorus alloy, and has an uncovered coating of gold thereover.  The gold coating is between about 1-30 microinches thick, preferably 5-15 microinches of hard gold.
Patent CA-1244691-A (CA)
Inventor: CARON BERNARD G
IPC: G02B6/38
Filed: 1984-06-04
Granted: 1988-11-15
Abstract: FIBER OPTIC CONNECTOR HAVING DUAL SUPPORTING SURFACES AND METHOD OF TERMINATING FIBER OPTIC TRANSMISSION MEMBERS          ABSTRACT:   A fiber optic connector comprises a housing member, ferrule members and a coupling member. The housing member is rigid and has a profiled bore extending therethrough which has a central cylindrical surface, tapered surfaces on each side of the central cylindrical surface, and a support surface at the outer end of each tapered surface. The ferrule members are of resilient deformable material and are terminated onto fiber optic transmission members. Each ferrule member has a profiled front end comprising a front cylindrical section of slightly larger diameter than the central cylindrical surface, tapered sections slightly smaller than the bore tapered surfaces, and an alignment section for tight engagement with the support surfaces when the ferrule members are urged together by the coupling member, thereby applying a radial compressive force to the front cylindrical sections and axially aligning the fiber optic transmission members and the alignment sections of the ferrule members tightly engaging the support surfaces of the housing member to maintain the ferrule members in alignment when lateral forces are applied to the ferrule members. A reservoir for index-matching fluid is formed by peripheral surfaces around the engaged front surfaces of the ferrule members. A ferrule member may be formed with a domed front surface which is polished to a flat front surface after terminating an end of a fiber optic transmission member therein.
Patent CA-1234762-A (CA)
Inventor: HSIUNG DU Y
IPC: A61Q5/00
Filed: 1984-06-29
Granted: 1988-04-05
Abstract: ABSTRACT        A method of treating hair to strengthen and improve its physical properties and a composition useful therein is disclosed.  More particularly, the composition contains polyvalent metal salts and the hair, so treated is substantially hydrophobic and bodied.
Patent CA-1214916-A (CA)
Inventor: KUEHN UDO
IPC: B22C9/18
Filed: 1984-08-17
Granted: 1986-12-09
Abstract: ABSTRACT         A method and apparatus for removing flash and other excess material from sand cores in which the cores are showered with impact particles of relatively soft material and contained in moving air stream issuing from a plurality of nozzles directed against opposite sides of cores being cleaned.  Low pressure air from a blower is  used at the nozzles to obtain a high density of particles in the moving air stream and provided for engagement of the particles in a gentle manner with the sand cores so as to minimize surface erosion of the cores.
Patent CA-1219166-A (CA)
Inventor: JULIAN JOHN C
IPC: B26D1/36
Filed: 1984-08-21
Granted: 1987-03-17
Abstract: ABSTRACT OF THE INVENTION        A knife assembly for a potato slicing machine used in slicing potatoes into waffle or lattice cut sections includes an elongated, corrugated knife and inner and outer clamping members for clamping the knife therebetween.  The inner and outer clamping members each have a plurality of parallel, tapered fingers which extend toward a cutting edge of the knife along grooves in one side of the knife, thereby to support both sides of the knife and lift potato surfaces away from such side and any potential interfering edges which might shear away portions of the cut potato surfaces.  A unique potato product formed using such knife assembly is a substantially ellipsoidal section having a peak to peak thickness of about 7/16 inch.  The section has opposite sides, each with longitudinal ridges and grooves therebetween. The ridges and grooves of one side are disposed at an angle to those of the other.  The section also has a grid of openings formed therein.  The product when parfried has a solids content of about 25-65% and an oils content of about 6-20%, by weight.  The section is prepared from a whole potato by slicing the same with a corrugated knife along two parallel planes but from different cutting directions, to form a potato section of the foregoing shape.  The section is then blanched, dried and parfried in oil.
Patent CA-1246122-A (CA)
Inventor: STOUDT GEORGE W
IPC: B05B1/04
Filed: 1984-08-28
Granted: 1988-12-06
Abstract: An airless spray coating nozzle having at least two orifices formed by the interpenetration of a plurality of grooves through a nozzle tip. The pressurized side or backside of the nozzle tip includes a single groove, and the unpressurized side of the tip includes two parallel grooves. Each parallel groove interpenetrates the backside groove, thereby forming orifices through the tip. The nozzle tip is used to spray a wide, flat spray pattern of coating material having an even distribution of coating material across the spray pattern even when the coating material is applied at a high flow rate.
Patent CA-1223477-A (CA)
Inventor: FRIEDRICH JOHN P
IPC: A23L11/30
Filed: 1984-09-11
Granted: 1987-06-30
Abstract: Abstract of the Disclosure The raw grassy and bitter principles in soybeans are reduced to acceptable levels for purposes of human consumption without significant degradation of the nutritional properties.  This result is achieved by a lipid extraction process in which raw soybean material is treated with carbon dioxide under carefully controlled supercritical conditions. Of particular importance are the moisture content of the bean material as well as the pressure, temperature, and contact time of the carbon dioxide extractant.
Patent CA-1228040-A (CA)
Inventor: KATSUMATA RYOICHI
IPC: C12N15/00
Filed: 1984-09-19
Granted: 1987-10-13
Abstract: ABSTRACT OF THE DISCLOSURE           Disclosed is a process for producing L-arginine by transforming a host microorganism belonging to the genus Corynebacterium or Brevibacterium with a recombinant DNA of a DNA fragment containing a gene involved in the biosynthesis of L-arginine and a vector DNA, culturing the transformant in a nutrient medium, accumulating L-arginine in the culture medium and recovering L-arginine therefrom.
Patent CA-1231132-A (CA)
Inventor: SARGISSON DONALD F
IPC: B64C11/00
Filed: 1984-10-12
Granted: 1988-01-05
Abstract: PROPELLER ACTUATION SYSTEM              ABSTRACT OF THE DISCLOSURE         A propeller engine system with components for generating electric power within a rotatable hub is disclosed.  The components include a shaft extending into the hub so that the hub and shaft are differentially rotatable.  Magnetic means are fixed to the shaft and windin means are fixed to the hub so that either rotation of the rotor shaft or hub induces an electric current in the winding means.