baber/WOPTO huggingface dataset:
Patent CA-1140039-A (CA)
Inventor: GEESEN DONALD H
IPC: C01D3/24
Filed: 1980-01-10
Granted: 1983-01-25
Abstract: Abstract of the Disclosure Disclosed is an improved method of producing potassium chloride by concentrating a brine thereof with respect to potassium chloride by multiple stage evaporation conducted at progressively higher temperatures, thereby precipitating other salts and thereafter cooling the brine in multiple stage crystallizers operated at progressively lower temperatures, thereby precipitating potassium chloride crystals.  The improvement com-prises cooling the brine in hotter crystallizer utilizing streams to or between cooler evaporators whereby in addition heat is provided to the evaporator stream.
Patent CA-1113309-A (CA)
Inventor: TURUNEN LASSE
IPC: A01C/
Filed: 1980-01-25
Granted: 1981-12-01
Abstract: Abstract of the Disclosure A method for feeding plant cells in a planting machine, whereby a unified line of cells      consisting of plant cells connected to each other is detached from a unified cell sheet comprising plant cells, the unified line of cells      is shifted downwards or upwards through cutting means which direct a cutting effect at the joints   between the individual plant cells      in the unified line of cells either from the same direction or from the opposite direction as compared with the direction from which the plant cells are supported during the shifting, in order to cut the cells in the  line of cells loose from each other, and the detached plant cells are passed to a distributor means in order to feed the plant cells as separated from each other to the planting device       The cutting loose of the plant cells takes place totally automatically when the plant cells are shifted from the cell sheet to the distributor means, and does not require any extra movements for cutting loose.          The device for putting the method into effect is provided with cutting means             which are arranged in line. one after the other at relative distances so that the cutting means are positioned on the paths of movement of the joints       between the individual plant cells in the line of cells The cutting means are arranged underneath or above the plane of the cell sheet       For cutting the plant cells loose, no mechanisms need to be provided in order to produce particular movements for cutting loose.
Patent CA-1106215-A (CA)
Inventor: BURKHART JAMES H
IPC: D21F9/04
Filed: 1980-02-05
Granted: 1981-08-04
Abstract: Improved Paper Forming Roll Construction ABSTRACT OF THE DISCLOSURE        Paper forming roll comprising a rotatable foraminous shell extending around a stationary pressure box having pressure chambers; spacing members secured to the box and extending between the box and shell and defining a forming zone, a primary holding zone, a transfer zone and a secondary holding zone, a first ported external wall of the box communicating the forming zone with a pressure chamber and a second external, vertically extending ported wall of the box communicating the primary holding zone with a second pressure chamber; and a drip element parallel to said second wall whereby fiber in the water past the primary holding zone spacing member will fall to the lower inner surface of the shell without impinging upon or adhering to the box.
Patent CA-1137369-A (CA)
Inventor: CORWIN HOWARD R
IPC: F01C11/00
Filed: 1980-03-26
Granted: 1982-12-14
Abstract: Abstract A multi-unit rotary piston mechanism having each unit separately, rotatively, dynamically balanced and connecting the mainshafts of each unit to each other by a coupling assembly which permits radial and axial flexi-bility relative to the mainshaft axes and torsional stiffness for torque transmission between the mainshafts.
Patent CA-1141379-A (CA)
Inventor: HERMECZ ISTVAN
IPC: A61P37/08
Filed: 1980-05-09
Granted: 1983-02-15
Abstract: ABSTRACT     Geminal dihalogen derivatives of condensed pyrimidine-4-one compounds of the general formula                 I [wherein R         represents hydrogen, lower alkyl, or lower alkoxycarbony; R1        represents hydrogen, lower alkyl, carboxy, ester group or a derivative thereof, cyano, phenyl or halogen; R2        represents hydrogen, lower alkyl or phenyl; X         represents halogen; n         is the integer 0, 1 or 2] and the salts and optically active antipodes thereof. The compounds I are valuable intermediates in the synthesis of compounds having antiallergic or antiasthmatic activity and some of the compounds I themselves posses pharmacological activity.
Patent CA-1134845-A (CA)
Inventor: KROENKE WILLIAM J
IPC: C08K5/19
Filed: 1980-05-22
Granted: 1982-11-02
Abstract: ABSTRACT OF THE DISCLOSURE Octadecylammonium alpha-octamolybdate is disclosed as a novel amine molybdate and as a smoke retardant additive for vinyl chloride and vinylidene chloride polymer compositions.
Patent CA-1140580-A (CA)
Inventor: ZEMP JOHANN N
IPC: C07C69/28
Filed: 1980-06-04
Granted: 1983-02-01
Abstract: TITLE OF THE INVENTION            "NOVEL COMPOUND WITH ANTIEPILEPTIC AND ANTICONVULSANT ACTIVITY, PROCESS FOR THE PREPARATION THEREOF AND PHARMACEUTICAL COMPOSITIONS THEREFROM"                    ABSTRACT OF THE DISCLOSURE            The compound pivaloyloxymethyl 2-propyl-pentanoate of formula I:                             I   is described.  The process for the preparation consists of reacting 2-propyl-pentanoic acid with chloromethyl pivalate and isolating the pivaloyloxymethyl 2-propyl-pentanoate from the reaction mixture.  Pharmaceutical compositions containing an effective amount of compound I are described.
Patent CA-1158598-A (CA)
Inventor: GARITO ANTHONY F
IPC: C08F138/00
Filed: 1980-06-25
Granted: 1983-12-13
Abstract: ABSTRACT OF THE DISCLOSURE         Photographic and Photolithographic systems are provided which utilize diacetylenic materials as components thereof.  Such materials, which include at least two acetyl-enic bonds in conjugation with one another, provide a combi-nation of both high sensitivity and high resolving power, thus resulting in superior photographic and photolitho-graphic properties.       In accordance with a preferred embodiment of the invention, a substrate is coated with at least one layer of a polymerizable composition comprising a diacetylenic species, said layer being organized into a plurality of domains having a substantially regular array of the di-acetylenic species.  In other embodiments, covalent bonding of the diacetylenic layer to the substrate is accomplished through the use of suitably constituted silane species, thus to provide a highly beneficial adhesion of substrate and photo- or photolithographic layer.            .
Patent CA-1157355-A (CA)
Inventor: SEFTON MICHAEL V
IPC: G01N21/78
Filed: 1980-06-26
Granted: 1983-11-22
Abstract: ABSTRACT OF THE DISCLOSURE             A device for continuously monitoring the exposure of a carrier of the device to an airborne contaminant comprises a tube filled with an inert packing and a reagent which changes colour upon contact with the contaminant to be monitored.  The tube has an open end and a membrane closes that end, the membrane permitting diffusion of the contaminant therethrough.  The length of the packing which changes colour is directly proportional to the time weighted average concentration of the contaminant to which the device and the carrier or wearer of that device has been exposed.
Patent CA-1139427-A (CA)
Inventor: TAMURA EIJI
IPC: H04N9/73
Filed: 1980-06-30
Granted: 1983-01-11
Abstract: METHOD AND APPARATUS FOR ADJUSTING WHITE BALANCE                ABSTRACT OF THE DISCLOSURE           A white balance circuit for adjusting white balance in a composite color signal, having a luminance component and color difference signals, produced from a color television camera utilizes a microcomputer having a random-access-memory (RAM) to control the white balance digitally.  A reference video signal is sampled during a blanking interval, then is stored as a digital quantity in a first location in the RAM.  Then one color difference signal (R-Y) is sampled during a scanning interval, and is stored as a digital quantity in a second location in the RAM.  Then the quantity stored in the second location is modified so that its value is substantially the same as that of the quantity stored in the first location. A correction signal varies with the luminance component and is proportional to the value of the quantity stored in the second location, and this correction signal is combined with the color difference signal to effect coarse adjustment of white balance. Fine adjustment is achieved by performing a predetermined number N of iterations of converting the quantity stored in the second location to an analog level, comparing such level with the level of the color difference signal, changing the quantity in the second location by one bit in the sense to minimize the difference between the two levels, and adjusting the correction signal in accordance with the changed quantity in the second location of the RAM.
Patent CA-1129414-A (CA)
Inventor: KRASKA ALLEN R
IPC: C07D303/22
Filed: 1980-07-07
Granted: 1982-08-10
Abstract: Abstract 1-Substituted-4-(2-hydroxy-3-n-alkoxypropyl)-piperazines, 1-substituted-4-(2-hydroxy-3-benzyloxy-propyl)-piperazines and 1-(2-hydroxy-3-n-alkoxypropyl)-4-substituted-piperidines and derivatives thereof useful as immune regulants are disclosed.  Also disclosed are pharmaceutical compositions containing the novel compounds and a method of regulating the immune response of a subject by administration of the novel compounds.
Patent CA-1140249-A (CA)
Inventor: HERMANN EBERHARD F
IPC: G01F23/296
Filed: 1980-08-20
Granted: 1983-01-25
Abstract: ABSTRACT OF THE DISCLOSURE Apparatus is provided for determining the level of material in a container.  The apparatus comprises a vibrator structure having first and second vibrator elements arranged in coaxial and at least partial concentric, spaced relationship.  Such vibrator elements are adapted to rotationally vibrate in opposite directions, with the same resonance frequency, the first element extending into the container to contact material located therein. Means are provided for generating an electrical signal representative of the amplitude of vibration of said first element.  Since the amplitude of vibration is dependent upon the degree to which the vibrating element is attenuated by contact with the material in the container, the electrical signal is representative of the filling level of such material and may therefore be utilized to provide an indication and/or control of such level. The invention is an improvement over known devices in that less power is required to excite vibrations in the system than in single-element devices, but the problems of bulky design and potential inaccuracies in conventional dual-element devices are also avoided.
Patent CA-1184732-A (CA)
Inventor: PAIK YOUNG J
IPC: E04C3/06
Filed: 1980-09-11
Granted: 1985-04-02
Abstract: SPECIFICATION                           FOR  I-BEAM CONSTRUCTION AND PROCESS THEREFOR                           BY            YOUNG J. PAIK     ABSTRACT           An I-beam has a pair of flanges separated by a web including corrugations extending transversely of the two flanges.  Immediately adjacent each side of the web interconnecting the two flanges, there is provided a flat bandlike space free of corrugations.  In manufacture, a flat, sheetlike web is welded to the flanges, after which the corrugations are formed in the web.
Patent CA-1164989-A (CA)
Inventor: SILFVAST WILLIAM T
IPC: H01S3/22
Filed: 1980-09-22
Granted: 1984-04-03
Abstract: RECOMBINATION LASER            Abstract A high-voltage, high current pulse is applied to a series of two or more conducting strips installed in series in a laser cavity containing either a buffer gas or a vacuum.  The strips are separated by small gaps.  When the high-voltage, high-current pulse is applied to the strips, plasmas are formed in the gap regions.  The plasmas are comprised of ions from the strip material.  Once formed, these plasmas expand hemispherically, cool and recombine to provide laser action.  The composition of the plasmas depends on the strip material, the electric field in the gaps, the gap size and the background gas type and pressure.
Patent CA-1159374-A (CA)
Inventor: DURBIN HOWARD M
IPC: H04R1/06
Filed: 1980-09-26
Granted: 1983-12-27
Abstract: ABSTRACT    An annular suspension for supporting an acoustic diaphragm around its edge and permitting axial diaphragm movement.  The suspension is made of thin folded sheet material, such as aluminum, and includes inner and outer concentric circular fold lines having a series of pyramid-like structures therebetween to control anti-nodal resonance of the suspension independently of the desired first resonance.  The suspension may be formed integrally with the diaphragm, which may be of the dome or cone configuration and is provided with a conventional voice coil.  The suspension permits axial diaphragm movement by slight flexing at the fold lines, minimizing stretching of the sheet material and preventing torsional movement of the diaphragm.  When the suspension is at rest, the inner and outer circular fold lines desirably lie in a common plane normal to the diaphragm axis and the pyramid-like structures project alternately on each side of that plane.  During operation, the circular fold line adjacent to the diaphragm moves slightly from that plane, and the pyramid-like structures flatten slightly.
Patent CA-1110754-A (CA)
Title: Video traveling matte system
Inventor: MENDRALA JAMES A
IPC: H04N9/76
Filed: 1980-10-06
Granted: 1981-10-13
Abstract: VIDEO TRAVELING MATTE                     SYSTEM       Abstract of the Disclosure A video traveling matte system is disclosed in which the video signal from a foreground televion camera is examined for the presence of a particular color by an arrangement employing multipliers to multiply the differences between the red and blue components of the video signal and a luminance signal derived from the video signal by the signals from a sine/cosine potentiometer.  The combined signal from the outputs of the multipliers is fed to a first comparator for comparison with a reference value and the resulting pulses are filtered by a 4-pole active Bessel filter and compared with a reference value in a second comparator to increase the width of the pulses by a selected amount.  The pulses of increased width prevent the formation of a matte outline between foreground and background images as the true and complementary values thereof are applied to alternately gate the video signals from the foreground television camera and a background television camera to a common output.  The effects of shadows in the foreground image are maintained despite substitution of the background image by utilizing the combined signal from the multipliers to modulate pulses from the second comparator prior to use of such pulses to gate the video signal from the background television camera to the common output.  The effects of shadows are further enhanced by a logarithmic amplifier which introduces a predetermined logarithmic transfer characteristic into the modulation signal to compen-sate for the black stretch circuits used in most television cameras.
Patent CA-1156676-A (CA)
Inventor: CAMP RONALD L
IPC: C08G65/26
Filed: 1980-10-21
Granted: 1983-11-08
Abstract: Abstract of the Disclosure New liquid thickeners for aqueous liquids are obtained by capping a liquid straight chain polyoxyalkylene compound derived from ethylene oxide or ethylene oxide and at least one other lower alkylene oxide by reacting said alkylene oxides with at least one active hydrogen-containing initiator having only one active hydrogen atom.  The new thickeners are prepared at a molecular weight of about 1000 to about 25,000 utlizing an alpha-olefin oxide having a carbon chain of about 12 to about 18 aliphatic carbon atoms.  Both block and heteric polyoxyalkylene compounds are useful.  Alternatively, the new thickeners can be made by copolymerizing ethylene oxide or mixed lower alkylene oxides in the presence of said alpha-olefin oxide.  The new thickeners exhibit an unexpected increase in viscosity in aqueous systems as compared with prior art liquid polyether thickening agents.  The alpha-olefin oxide modified polyether thickening agents of the invention are useful in both water-based and water-glycol based hydraulic fluids.
Patent CA-1149022-A (CA)
Inventor: GUIDOUX LOIC B Y
IPC: H04B3/20
Filed: 1980-10-30
Granted: 1983-06-28
Abstract: ABSTRACT:           A carrier detector in a modem provided with an echo canceler comprises a first detection circuit which processes the level of the echo canceler output signal. In addition, the detector comprises a second detection circuit which processes the level of the output signal of an amplitude regulator connected to the output of the echo canceler.  This second detection circuit produces an indication of the carrier interruption in the range of the high carrier levels, in which the first circuit is not operative for detecting a carrier interruption.
Patent CA-1126486-A (CA)
Inventor: DILBERT MEREDITH N
IPC: C09C1/00
Filed: 1980-11-26
Granted: 1982-06-29
Abstract: Abstract of the Disclosure Carbon black is produced in a process comprising prequenching with hollow cone prequench having an included angle effective to produce high tint residual carbon black.  Iodine number and tint strength number are changed by changing the included angle of the prequench.
Patent CA-1159458-A (CA)
Inventor: OHYAMA HIROSHI
IPC: C07D263/58
Filed: 1981-01-23
Granted: 1983-12-27
Abstract: ABSTRACT OF THE DISCLOSURE:          A benzoxazolone compound of the general formula:                                           (I) wherein X represents a C1 to C4-alkyl group; Y represents a halogen atom selected from chlorine and bromine; m is an integer of 1 to 3; n is an integer of 1 to 3; wherein the sum of m + n is an integer of 2 to 4; and R represents a group selected from C1 to C4-alkyl, C1 to C4-alkylcarbonyl, chloro-C1 to C4-alkylcarbonyl, C1 to C4-alkyloxycarbonyl, C2 to C4-alkenylcarbonyl, C2 to C4-alkenyloxycarbonyl, C1 to C4-alkylsulfonyl and phenylsulfonyl.  These compounds are highly active against a wide range of plant fungal and bacterial diseases and have a reduced phytotoxicity. Processes for the preparation of the compounds, and compositions containing them are also disclosed.
Patent CA-1159996-A (CA)
Inventor: CHING TA-YEN
IPC: C08G63/64
Filed: 1981-01-30
Granted: 1984-01-03
Abstract: RD-,11976 UV STABILIZED POLYCARBONATE RESINS  :         ABSTRACT OF THE DISCLOSURE:           .           UV stabilizing units are incorporated in a polycarbonate molecule to impart UV stability to the polycarbonate.
Patent CA-1145935-A (CA)
Title: Shock-absorbing animal trap
Inventor: NOVAK MILAN
IPC: A01M23/34
Filed: 1981-02-06
Granted: 1983-05-10
Abstract: ABSTRACT There is provided, for an animal trap having a portion which attaches to an animal when the latter springs the trap, said portion being capable of being affixed with respect to the terrain, the improvement of providing a shock-absorbing capability to the trap. This capability arises through the provision of an apparatus through which the previously mentioned portion can be affixed with respect to the terrain. The apparatus includes a resilient member between the portion attaching to an animal and the fixed loca-tion with respect to the terrain, the resilient member being in parallel with a substantially non-resilient connection also between the portion which attaches to an animal and the location of fixing with respect to the terrain.  Thus, if the trapped animal should lunge away from the trap, the resilient member will absorb at least some of the resulting shock so that injury to the animal can be minimized. The substantially non-resilient attachment portion is provided to ensure that the resilient member does not exceed its elastic limit during its extension.
Patent CA-1165907-A (CA)
Inventor: SUND-HAGELBERG ANNA C
IPC: C22B3/44
Filed: 1981-02-19
Granted: 1984-04-17
Abstract: A B S T R A C T            A method for purifying acid waste solutions containing heavy metals, of which at least one of the elements arsenic, antimony, mercury and tin is present in considerable amounts, by chemical precipita-tion with sulphide ions. The sulphide ions are charged to the solu-tion at at least two separate acidity ranges and adjustment between said acidity ranges is effected by adding a suitable base) where after the resultant precipitates are removed from the solution. The first sulphide ion charge made at a pH of at least lower than 3.4, preferably within the range 1.0 - 2.5. The second sulphide ion charge is made at a pH of at least lower than 4.0, preferably beneath 4.3, subsequent to regulating the pH with a suitable base.
Patent CA-1200773-A (CA)
Inventor: RUTTER WILLIAM J
IPC: C12P21/00
Filed: 1981-02-25
Granted: 1986-02-18
Abstract: ABSTRACT OF THE DISCLOSURE      A   specific   cleavage   linker   comprises   a deoxynucleotide sequence coding for a specific cleavage sequence  of  two  or  more  amino  acids  which  is specifically  recognized  and  cleavable  by  enzymatic means.   The provision of the cleavage linker enables specific cleavage of a desired portion out of a fusion protein to be obtained without further affecting the desired portion.
Patent CA-1155354-A (CA)
Inventor: DROBISH JAMES L
IPC: A61F6/08
Filed: 1981-02-27
Granted: 1983-10-18
Abstract: VAGINAL CONTRACEPTIVE                        James Lee Drobish Thomas William Gougeon ABSTRACT OF THE DISCLOSURE     Improved reinforced devices, which can be retained in the vagina during intercourse, deliver spermicidal surfactants and provide contraceptive benefits.  Lobed devices provide channels through which menses and other biological fluids can pass. Multi-compartment devices provide added protection against leakage, rupture or perforation during manufacture, handling and use.
Patent CA-1127205-A (CA)
Inventor: ARNOLD CARROLL H
IPC: E02F9/28
Filed: 1981-03-09
Granted: 1982-07-06
Abstract: ABSTRACT OF THE DISCLOSURE          An excavating device having a plurality of gouging members protruding downwardly from the bottom of an excavating bucket, and extending therefrom in the direction toward the bucket's scooping edge, the members being staggered at varying distances from the edge and bucket sides.
Patent CA-1150181-A (CA)
Inventor: ROZMUS WALTER J
IPC: B07B11/06
Filed: 1981-04-03
Granted: 1983-07-19
Abstract: ABSTRACT OF THE DISCLOSURE             A powder dispensing assembly including an elon-gated chute having opposite ends pivotally supported for rotation about a pivot axis within an elongated housing and having a funnel-shaped cross section with a wide upper portion and a narrow lower portion.  A dispensing platform is integral with the rear wall of the chute and extends forwardly beneath the front wall and slopes upwardly to a lip over which particles of powder move to define a falling curtain of powder particles.  A supply platform is supported just above the pivot axis and receives powder from an elongated slot and supplies powder to the dispensing plat-form as the powder falls  downwardly through the chute.  The supply platform is wider than the angle of repose of the powder supplied thereto so that when the supply platform is not moving powder is not being supplied to the lower dispensing platform.  An electromagnet cooperates with a spring plate which is, in turn, connected by a rod through the housing to the rear wall of the chute.  The electromag-net operates on 60 cycle AC and, when energized, sets up a magnetic field to bend the spring plate to rotate the chute in a counterclockwise direction about its pivot axis and between cycles the spring plate springs back and returns the chute by rotating it in the clockwise direction.  The upper supply platform, therefore, rocks about the pivot axis to supply powder to the lower dispensing platform, the supply of powder from the supply platform being less than the capacity of the dispensing platform.