baber/WOPTO huggingface dataset:
Patent CA-1164131-A (CA)
Inventor: BROMLEY CHARLES
IPC: C09K23/42
Filed: 1980-12-09
Granted: 1984-03-20
Abstract: V. 31077 ABSTRACT OF DISCLOSURE           A process is described for making sterically stabilised non-aqueous dispersions of polymer microparticles, in which (1) monomers including at least one crosslinking monomer are polymerised in an aqueous medium at a temperature at least 10° higher than the glass transition temperature of the polymer to be formed, in the presence  of a block or graft copolymer stabilising agent containing in the molecule, as the component solvated by the aqueous medium, a polymer chain derived from a polyethylene glycol of molecular weight at least 1000, under conditions such that there is at no time present a separate monomer phase and (2) the microparticles thus obtained are transferred into a non-aqueous medium which is capable of dissolving the polyethylene glycol in question, when the latter is in the non-hydrated state, to the extent of at least 10% by weight at room temperature. The microparticles are of value for incorporation into coating compositions the main film-forming constituent of which is compatible with the polyethylene glycol-derived stabilising chains of the particles.
Patent CA-1155774-A (CA)
Inventor: STEENKEN GERHARD
IPC: B01J20/28
Filed: 1980-12-15
Granted: 1983-10-25
Abstract: ABSTRACT OF THE DISCLOSURE     This disclosure relates to a filter aid utilized in the Filtration of beverages, in particular of beer, in accordance with filtration process which comprises entirely or in part fibers of silicic acid having a staple length of about 30 to 7000 um and a diameter of about 4 to 20 um.  The silicic fibers may be used either alone or in combination with kieselgur, precipitated silicic acid, perlite and other filter aids.  In addition, it is also possible to blend the silicic fibers with organic fibers with organic fibers.  The filter aid of this disclosure do not affect the taste of the liquid being filtered and ensures a long service life of the filter and a high degree of clarification.
Patent CA-1144493-A (CA)
Inventor: SANDVIK JOHANNES
IPC: F16D43/18
Filed: 1980-12-22
Granted: 1983-04-12
Abstract: ABSTRACT OF THE DISCLOSURE     The specification describes a clutch mechanism for hoisting apparatuses, such as cranes, winches, shifting crabs and the like.  The positively activated clutch mechanism does not rely on spring pressure for actuation but is characterized by its reliability and simplicity, the combination of which give quick and safe operation.
Patent CA-1158010-A (CA)
Inventor: FINK ROLAND
IPC: C08J7/12
Filed: 1981-01-19
Granted: 1983-12-06
Abstract: ABSTRACT      A polypropylene article or foil with a content of fine particle cellulose which has greatly improved durable adhesion characteristics brought about by surface activation such as irradiation, flame or chemical treatment.  Mineral fillers and modifying agents may be included.
Patent CA-1162584-A (CA)
Inventor: REES JAMES D
IPC: G03B27/54
Filed: 1981-03-05
Granted: 1984-02-21
Abstract: ABSTRACT           The present invention relates to a xerographic printer capable of reproducing microfilm or microfiche images  over  a broad  enlargement range.   The printer includes a light housing completely enclosed except for an aperture  in the bottom wall.   Microfilm or  fiche images are successively presented adjacent this aperture. The walls of the housing are coated with a diffusely reflective material and cause light from a flash illumin-ation  source mounted within the housing  to diffusely illuminate  the  surface  of  the  image  adjacent  the aperture.
Patent CA-1158884-A (CA)
Inventor: KOERWER JOHN F
IPC: A01N39/04
Filed: 1981-03-20
Granted: 1983-12-20
Abstract: PHENOXY-PHENOXYALKANE CARBOXLIC ACIDS AND DERIVATIVES AS SUGAR ENHANCERS FOR PLANTS     ABSTRACT     A method for increasing the sugar content of plants by applying to such plants an effective amount of a phenoxy-phenoxyalkane carboxylic acid or derivative thereof.
Patent CA-1165944-A (CA)
Inventor: WANCOWICZ DAVID J
IPC: C08F220/00
Filed: 1981-03-25
Granted: 1984-04-17
Abstract: Abstract of the Disclosure Process for the manufacture of terpolymers comprising the steps of (a) preparing an ethanol solution of a monomer mixture of acrylic acid, ethyl acrylate and t-butylacrylamide;        (b) indroducing a first minor portion of the monomer mixture into refluxing ethanol; and then (c) without further heating continuously and simultaneously adding the remainder portion of the monomer mixture and an ethanol solution of a polymerization initiator to the reaction mixture over 1 to 3 hours at a rate that maintains the reflux of ethanol in the reac-tion mixture provided that the addition of the monomer mixture is completed 15 to 30 minutes before the addition of the initiator is completed.       The carboxylic groups of the terpolymer thus made can be neutralized and optionally diluted to a hair fixing formulation in ethanol for use as air-pump spray or as a spray charged to an aerosol can for performing a desirable balance of water solubility and curl retention properties.
Patent CA-1149430-A (CA)
Inventor: FULMER KEITH H
IPC: B60T11/20
Filed: 1981-05-21
Granted: 1983-07-05
Abstract: SELF-RESETTING WARNING ACTUATOR    FOR A DUAL CIRCUIT BRAKE SYSTEM                        A B S T R A C T             A self-resetting warning actuator (42) for a vehicle brake system includes a housing (27) having a bore (44) which defines a recess (58).  A pair of pressure responsive pistons (50, 54) are received in the housing bore and each is exposed to the pressure in one brake circuit.  A roller member (48) is disposed in the housing recess and between the pistons.  When the brake system is operating normally, the pressures in the two brake circuits are substantially equal and the pistons define a neutral position.  Should one of the circuits fail, the pistons are shifted from their neutral position by the resulting pressure difference between the circuits.  The housing recess defines a ramp which forces the roller member between the pistons when the pistons shift from their neutral position.  A signaling device, by its response to the movement of the pistons, provides a warning to the vehicle operator.  When the brake system is repaired, and the pistons are once again exposed to equal pressures, the roller member is forced from between the pistons.  Movement of the roller member along the recess ramp returns the pistons to their neutral position.
Patent CA-1159455-A (CA)
Inventor: BULTEN ERIC J
IPC: C07F7/30
Filed: 1981-05-29
Granted: 1983-12-27
Abstract: ABSTRACT    A process for the preparation of novel germanium compounds having the general formula   (1) which compounds are useful in the treatment of cancer tumors.
Patent CA-1152108-A (CA)
Inventor: CLINGAN WILLIAM R
IPC: C07C209/82
Filed: 1981-06-05
Granted: 1983-08-16
Abstract: PROCESS FOR THE PURIFICATION OF p-AMINOPHENOL            Abstract of the Disclosure An improved process for the recovery and extrac-tive purification of p-aminophenol is disclosed.  The pro-cess involves contacting an aqueous feed solution prepared by catalytic reduction of nitrobenzene in acid medium and containing 4,4-diaminodiphenyl ether, aniline and other minor amine by-products with a base to adjust the pH of the solution to 4.0-5.0, and then extracting the resulting aque-ous feed solution with a mixture of aniline and toluene to selectively dissolve 4,4'-diaminodiphenyl ether in the ani-line-toluene mixture and to produce an aqueous phase con-taining principally p-aminophenol and an organic aniline-toluene phase containing p-aminophenol, 4,4'-diaminodiphenyl ether and other amine by-products.  The ratio of aniline to toluene is within the range between approximately 4 parts by volume aniline to 1 part by volume toluene and approximately 1 part by volume aniline to 4 parts by volume toluene, pref-erably a ratio of 1:1.  After separation of the aqueous phase from the organic phase, the p-aminophenol of improved purity is recovered from the aqueous phase.  Further effic-iency in the overall yield of p-aminophenol is achieved by back-extracting the organic phase with a basic solution of potassium or sodium hydroxide to produce an aqueous layer containing the basic solution and substantially all of the p-aminophenol formerly contained in the organic phase and then recycling the aqueous layer for use-as a portion of the base used to adjust the pH of the original aqueous feed so-lution to the range of 4.0 to 5Ø  Another feature dis-closed is the fractional countercurrent extraction of the original aqueous feed solution having a pH of 4.0 to 5.0 with an aniline-toluene mixture and an ammonium sulfate solution, aniline sulfate or sulfuric acid to selectively dissolve 4,4'-di-aminodiphenyl ether in the aniline-toluene mixture and to produce an aqueous phase from which a greater yield of p-aminophenol of improved purity may be obtained.
Patent CA-1186872-A (CA)
Inventor: LEUVELINK GERRIT W E
IPC: B21F43/00
Filed: 1981-07-10
Granted: 1985-05-14
Abstract: ABSTRACT            METHOD OF AND APPARATUS FOR ARRANGING HELICAL          COILS IN INTERDIGITATED SIDE-BY-SIDE DISPOSITION      A method and apparatus is proposed for the simultaneous joining together of a multiplicity of individual helical coils in forming a link belt section intended for co-operation with other like sections to produce a link belt of a requisite length, coils of opposite hand being arranged side-by-side in pairs and such pairs being combined together to form the section.  Hinge wires are threaded through the interdigitated turns of adjacent coils to main-tain the integrity of the total structure.    The apparatus includes a guide means for locating the individual coils one relative to another and a roller nip arrangement through which the coils, in a requisite relative disposition, are caused to pass.  Hinge wire insertion means is also provided, whereby individual hinge wires are introduced into the interdigitated turns of adjacent coils.
Patent CA-1150320-A (CA)
Title: Process for preparing 2,5-dimethyl-2,4-hexadiene
Inventor: PREVEDELLO ALDO
IPC: C07C1/24
Filed: 1981-08-11
Granted: 1983-07-19
Abstract: ABSTRACT OF THE DISCLOSURE:          The invention relates to a process for the preparation of 2,5-dimethyl-2,4-hexadiene comprising the steps of contact-ing 2,5-dimethyl-2,5-hexanediol in liquid phase with an acid (or derivatives thereof or substances which set free acids) or aqueous solution thereof, heating the mixture thus obtained, distilling off the water which is formed, recycling the organic phase and finally separating the product obtained from the reaction mixture.  This process shows a good yield and selectivity.
Patent CA-1160148-A (CA)
Inventor: BRYDOLF ROBERT
IPC: E05D15/26
Filed: 1981-08-21
Granted: 1984-01-10
Abstract: HANGER FOR FOLDING PARTITION            Abstract of the Disclosure A hanger is provided for suspending a slat of a multi-slat folding par?tion from an overhead track.  The hanger has a shaft with a head at its upper end and a tang at its lower end.  The tang is for engaging a hole through the top of the slat.  A clip is on the shaft for holding the tang in the hole in the slat when the clip is in its lower position. A bogie is mounted on the shaft between the clip and the head of the shaft.  The bogie engages an overhead track for suspending the slat for movement along the length of the track.
Patent CA-1142810-A (CA)
Inventor: TICE THOMAS R
IPC: A61K9/16
Filed: 1981-09-17
Granted: 1983-03-15
Abstract: ABSTRACT OF THE DISCLOSURE        Microcapsules laden with an active agent arc prepared by a method comprising:  (a) dissolving or dispersing an active agent in a solvent and dissolving a wall forming material in said solvent: (b) dispersing said solvent containing said active agent and wall forming material in a continuous-phasc processing medium; (c) evaporating a portion of said solvent from said dispersion of step (b), thereby forming micro-capsules containing said active agent in the suspen-sion; and (d) extracting the remainder of the solvent from said microcapsules.
Patent CA-1172258-A (CA)
Inventor: RENFROE HARRIS B
IPC: C07D209/42
Filed: 1981-10-30
Granted: 1984-08-07
Abstract: Abstract of the disclosure The invention concerns hypotensive, antihypertensive and bradycardic compounds of the formula I                            (I) wherein Ph is unsubstituted 1,2-phenylene, or 1,2-phenylene substi-tuted by one to three identical or different members selected from lower alkyl, lower alkoxy, lower alkylenedioxy, hydroxy, halogeno and trifluoromethyl; R1 is hydrogen, lower alkyl or amino-lower alkyl; R2 is lower alkyl or HPh-lower alkyl; and each of R3, R4 and R5 is hydrogen or lower alkyl; the amides, mono- or di-lower alkylamides, lower alkyl esters, (amino, mono- or di-lower alkylamino, carboxy or carbo-lower alkoxy)-lower alkyl esters, or salts. They can be pre-pared, for example by hydrolysing a compound of the general formula   wherein at least one of V and W is cyano, and the other is said free, amidized or esterified carboxy group.
Patent CA-1191203-A (CA)
Title: Non-grounding checking system
Inventor: YOSHIDA KENICHI
IPC: G01R31/02
Filed: 1981-12-18
Granted: 1985-07-30
Abstract: ABSTRACT OF THE DISCLOSURE The grounding of an electrical apparatus is monitored by a primary circuit which is inductively coupled to a coil connected in series between the grounding line of the power cord and a grounding terminal on the electrical apparatus to which a second grounding line is connected.
Patent CA-1178448-A (CA)
Inventor: HUFF NORMAN T
IPC: C03B9/41
Filed: 1982-02-15
Granted: 1984-11-27
Abstract: ABSTRACT OF THE DISCLOSURE    An electronic control system for an automatic glassware forming machine includes a plurality of position sensors for monitoring the motions of individual glassware forming mecha-nisms.  The sensors generate output signals which define the start and stop times and/or motion of the respective forming mechanisms.  The electronic control is responsive to the sensor output signals for identifying any mechanical dead times in the forming cycle.  Mechanical dead time is defined as time during which no machine motions are occurring, but could be occurring without interfering with essential heat transfer functions.  The electronic control can then reduce or remove selected mechanical dead times to reduce the machine cycle length, and consequently, increase the production rate of the machine.
Patent CA-1184011-A (CA)
Inventor: ERICSSON ROGER A B
IPC: E04B7/00
Filed: 1982-03-16
Granted: 1985-03-19
Abstract: ABSTRACT In a method for mounting a structure comprising a number of girders or the like as a roof, floor or similar structure, the girders are inter-connected at their lower sides by a flexible sheet or the like and the unit thus assembled is contracted by moving the girders close together and folding the flexible sheet.  The unit thus obtained is transported from the manufactur-ing place to the building site where the unit is installed in its final place and the girders are moved apart.  The girders are interconnected by a flexible sheet or the like at their lower edges and may include heat- or sound-insulating material.
Patent CA-1170410-A (CA)
Inventor: BLACK JOHN W
IPC: B60B33/04
Filed: 1982-04-15
Granted: 1984-07-10
Abstract: WHEEL BRACKET ASSEMBLY               ABSTRACT OF THE DISCLOSURE    A wheel bracket assembly includes an upper bracket having two spaced downwardly extending side flanges and a wheel carrying bracket pivotally supported between the upper bracket side flanges for pivotal movement about an axis.  The second bracket has a generally horizontal top plate with a transverse, upwardly facing, concave groove and has side flanges which extend down-wardly from opposite sides of the top plate and are adapted to pivotally support a wheel therebetween.          Pivotal movement of the wheel carrying bracket in one direction is resisted by a resilient element which has one end engaging the top plate at a location within the groove, which extends away from such location approxi-mately along the path of movement of the location about the pivot axis, which tapers in thickness toward such end, which has a semicylindrical head at the opposite end, and which has a transverse groove on each side thereof adja-cent the head.  An omega-shaped clip securely grips around the head with its legs disposed in the transverse grooves, and has its ends securely supported on respect-ive side flanges of the upper bracket.  Progressive pivotal movement of the wheel carrying bracket is countered by progressively increasing resistance from the resilient element.
Patent CA-1217563-A (CA)
Inventor: TSUGANE SHUZO
IPC: H03M7/42
Filed: 1982-04-15
Granted: 1987-02-03
Abstract: Specification Title of the Invention Code Converting Circuit Background of the Invention This invention relates to a code converting circuit which converts fixed length codes into variable length codes and delivers out a resultant train of variable length codes every K (constant) bits.        For the PCM transmission of signals of a wide band-width such as video signals, the concept of lowering the transmission bit rate by converting fixed length codes into variable length codes has been conceived.  With the variable length code scheme, the overall bit rate can be drastically lowered by, for example, allocating bits of a short length to codes of frequent occurrence.  Practical hardware for this purpose, however, calls for a complicated, large-scale circuitry as disclosed in US patent 4,276,544 of the same applicant and no simple converting circuit has yet been realized.  In effect, the above US patent requires shifters 38 and 42 (Fig. 6) in order to rearrange the variable length code every predetermined bits in parallel, thus increasing the hardware.  Therefore, it has been desired to attain the above advantage of the variable length code scheme with a simplified converting circuit.          Summary  of the Invention
Patent CA-1198992-A (CA)
Inventor: SCHNEPF HARRY E
IPC: A01N63/50
Filed: 1982-04-23
Granted: 1986-01-07
Abstract: B. THURINGIENSIS CRYSTAL PROTEIN            IN E. COLI                    ABSTRACT          Expression of the crystal protein of Bacillus thuringiensis in E. coli is described by use of plasmids containing heterologous DNA coding for the crystal protein.  Genetically engineered bacterial host strains transformed by the plasmids of the invention express B. thuringiensis crystal proteins without exhibiting the growth phase limitations characteristic of the natural bacterial host species.
Patent CA-1175974-A (CA)
Inventor: MICHIE WILLIAM J JR
IPC: B29C48/32
Filed: 1982-05-10
Granted: 1984-10-09
Abstract: EXTRUDED GLOSS IMPROVEMENT IN PIPE BLENDS            WITH LOW PRESSURE LOW DENSITY POLYETHYLENE                        Abstract of the Disclosure Medium density polyethylene pipe blends with improved low temperature brittleness properties and pipe made therefrom with enhanced gloss composed of a high density ethylene polymer; a low pressure, low density alkylene interpolymer; and a carbon black concentrate wherein the carrier in said concentrate is a low pressure, low density alkylene interpolymer, S P E C I F I C A T I O N
Patent CA-1184608-A (CA)
Inventor: GOECKLER HEINZ
IPC: H04J1/05
Filed: 1982-05-13
Granted: 1985-03-26
Abstract: ABSTRACT OF THE DISCLOSURE       The invention relates to a sampled-data method for n-band transposition according to the Weaver method, and is characterized in that, in the Weavers modulators, the filters and multipliers are arranged in orthogonal branches through multiplex operation of a single filter and a pair of multi-pliers, and in that the carrier-frequency to scanning-frequency ratio is determined by the quotient of two natural numbers.  The multiplex formation produces very high compensation for disturbing in-band spectra.
Patent CA-1180416-A (CA)
Inventor: HIROSAKI BOTARO
IPC: H04L7/02
Filed: 1982-05-14
Granted: 1985-01-02
Abstract: ABSTRACT A timing recovery circuit for a receiver adapted to pulse amplitude-modulated (PAM) signals given in the form of binary sequences is described. It comprises: a delayed difference circuit for supplying the difference between a reception PAM signal and a signal delayed by one clock period from the recep-tion signal; a voltage-controlled oscillator for generating a timing signal whose oscillating frequency is controlled in response to a control voltage; a decision circuit for determining, at the time determined by the timing signal supplied by the voltage-controlled oscillator whether or not the reception signal is greater than a predetermined threshold level; and a multiplier circuit for analog-multiplying the output of the decision circuit by the out-put of the delayed difference circuit, wherein the mean value of the output of the multiplier circuit is used as the control voltage.  By so controlling the phase of the timing signal as to make zero the integrated value of the delayed difference waveform taken out by a rectangular wave having a duty ratio of 100 percent, the influence of local deterioration of the reception waveform is smoothed and the timing signal can thereby be subjected to stable phase control.
Patent CA-1222536-A (CA)
Inventor: FALK EDWARD J
IPC: B60T8/26
Filed: 1982-06-07
Granted: 1987-06-02
Abstract: --Abstract of the Disclosure The invention relates to an improvement in a valve for a tractor air brake system for changing the pressure delivered to air brakes on a tractor rear axle during "bob tail" operation and particularly to a valve wherein the ratio is changed by communication of control pressure to a second control surface in accordance with the presence of trailer emergency pressure.  The improved ratio control valve enables fluid pressure communication to both control surfaces of the ratio valve until a predetermined input pressure is reached so that the "crack-open" input pressure for both the "trailer-connected' and the "bob tail" modes of operation will be the same.  Further in accordance with the invention, a blend-back valve is provided which is biased by the available fluid pressure in the tractor reservoir tank so that the maximum available tractor reservoir pressure may always be applied to the tractor rear axle brakes even when the trailor is operating in the "bob tail" mode.--
Patent CA-1177749-A (CA)
Inventor: TOMATSU JUNICHI
IPC: C07K16/08
Filed: 1982-06-24
Granted: 1984-11-13
Abstract: ABSTRACT OF THE DISCLOSURE A non-A, non-B hepatitis-associated antibody that shows a specific antigen-antibody reaction with a non-A, non-B hepatitis-associated antigen obtained by isolation and purification from the liver of a warm-blooded animal infected with type non-A, non-B hepatitis and having the following physicochemical properties:      molecular weight: 1,500,000 or more (gel filtration) sedimentation constant (10-13)  51.5S (ultracentrifugal analysis) buoyant density (g/cm3): 1.15 - 1.25 (in cesium chloride and in potassium bromide) particle diameter (nm): 26 - 37 electrophoretic mobility: .alpha.2 - .alpha.1 globulin region (in agarose). The antibody of the invention is used to form a detection reagent for detecting the presence of non-A, non-B hepatitis-associated antigen.
Patent CA-1189968-A (CA)
Inventor: BRICOT CLAUDE
IPC: G11B7/007
Filed: 1982-07-13
Granted: 1985-07-02
Abstract: DEVICE FOR OPTICAL RECORDING AND READ-OUT OF DATA   ALONG A PRERECORDED TRACK     ABSTRACT OF THE DISCLOSURE         The invention relates to optical devices enabling writing and reading of data on a disc comprising a preformed pattern, the recording and reading operations utilising a lighting spot able to illuminate only a single track element at a time.  The invention provides a preformed pattern such that the spot overlaps on the track elements bordering a track interstice and vice versa, in such manner as to obtain a preformed contrast which can be accentuated by recording the data.  The invention is applicable in particular to the recording of video frequency signals and to storing digital data on a disc.