baber/WOPTO huggingface dataset:
Patent CA-2028541-A1 (CA)
Title: Photosensitive mixture
Inventor: HUNZIKER MAX
IPC: C08F290/00
Filed: 1990-10-25
Abstract: Liquid mixtures containing a) 5-25 % by weight of a monomeric aliphatic or cycloaliphatic di(meth)acrylate having a molecular weight (MW) of not more than 800, b) 0-15 % by weight of a monomeric poly(meth)acrylate having a functionality of at least 3 and an MW of not more than 600, c) 0-20 % by weight of a mono(meth)acrylate or a mono-N-vinyl compound having an MW of not more than 500, d) 20-60 % by weight of a urethane (meth)acrylate having a functionality of 2 to 4 and an MW of 500 to 10,000, e) 10-50 % by weight of a monomeric or oligomeric di(meth)acrylate based on bisphenol A or bisphenol F, f) 0.1-10 % by weight of a photoinitiator and g) 0-5 % by weight of customary additives, the proportion of the components a) to g) together being 100 % by weight, are photosensitive mixtures which can be polymerized by means of actinic radiation and are preferentially suitable for the production of three-dimensional articles by means of the stereolithographic process.
Patent CA-2029733-A1 (CA)
IPC: E21B11/00
Filed: 1990-11-13
Abstract: A reamer consisting of an elongate body having a first end and a second end.  At least one blade is secured to the first end of the elongate body.   The blade is movable between an extended position wherein the blade extends radially at an angle from the elongate body and a retracted position wherein the blade is drawn in toward the elongate body.  A handle is provided at the second end of the elongate body.  The elongate body is inserted through a hole with the blade in the retracted position and then manually rotated to ream a remove end of the hole with the blade in the extended position.   A lever is provided adjacent the handle at the second end of the elongate body for moving the blade between the extended position and the retracted position.
Patent CA-2033245-A1 (CA)
Inventor: NIESE MICHAEL W
IPC: E04B5/00
Filed: 1990-12-27
Abstract: A hardwood floor system has upper and lower subfloors of wooden panels, a plurality of elongated floorboards disposed above the upper subfloor and a plurality of uniformly spaced compressible, deflectable pads supporting the lower subfloor above a base, with at least one kerfed surface in the group of surfaces including the floorboard bottom surface, the upper subfloor surfaces, and the lower subfloor surfaces.  In a free-floating embodiment of the invention, each of the pads includes a glide tip that is slidable with respect to the base.  This combination of kerfs and compressible, deflectable pads provides a hardwood floor system that substantially complies with the performance characteristics established by the Otto Graf Institut of West Germany for evaluating hardwood floor systems, but in a more economical manner than another embodiment of the invention described in the parent application.
Patent CA-2035666-A1 (CA)
Title: Apparatus and techniques for processing of data such as color images
Inventor: SPIEGEL EHUD
IPC: G06K15/02
Filed: 1991-02-04
Abstract: ABSTRACT         A   method  and  apparatus  for adapting   a   digital representation  of a first color image for output  representation by an output device having spatial  and color characteristics are disclosed.  The  apparatus includes apparatus for  modifying  the spatial  characteristics  of the digital  representation  of  the first  color  image and the color characteristics  of  the  first color   image   to   correspond  to   the   spatial   and   color characteristics  of  the output device such that,  in  an  output representation,  the  color characteristics of  the  first  color image  would be substantially preserved. The method includes  the step  of  modifying the spatial characteristics  of  the  digital representation   of   the  first  color  image  and   the   color characteristics  of  the first color image to correspond  to  the spatial and color characteristics of the output device such that, in  an  output representation, the color characteristics  of  the first color image would be substantially preserved.
Patent CA-2037113-A1 (CA)
Inventor: STRASSEL ALBERT
IPC: C09J127/12
Filed: 1991-02-25
Abstract: A composition is provided which is coextrudable with vinylidene polyfluoride permitting it to adhere to incompatible polymeric resins, the composition which has a base of an alkyl polymethacrylate and a thermoplastic polymer is comprised of: from 27 to 50 parts by weight of an alkyl polymethacrylate; and from 73 to 50 parts by weight of an additive itself constituted for 100 portions by weight of additive of: from 35 to 50 parts by weight of PVDF, and from 65 to 50 parts by weight of acrylic or methacrylic elastomer. This composition serves to produce vinylidene polyfluoride compounds capable of coating polymers which are non-compatible with vinylidene polyfluoride. When used as an adhesion agent, one can obtain by coextrusion, compounds of vinylidene polyfluoride and polymers non-compatible with the vinylidene polyfluoride.
Patent CA-2038830-A1 (CA)
Title: Electrolysis of alkali metal sulfates
Inventor: HABERMANN WOLFGANG
IPC: B01D61/44
Filed: 1991-03-22
Abstract: Abstract of the Disclosure:  Alkali metal sulfates are electrolyzed to more concentrated solutions of alkali metal hydroxide and sulfuric acid by using a three-compartment electrodialysis cell at temperatures of ? 70 to ? 150°C and current densities of from 0.5 to 15 kA/m2 using an anion exchange membrane whose polymeric ion exchange  matrix  comprises  a  styrene/divinylbenzene copolymar  containing  very  strongly  basic  quaternary ammonium groups and a hydronium ion blocker, on whose central compartment side is an ion exchange layer or membrane containing tertiary or secondary amino groups.
Patent CA-2040005-A1 (CA)
Title: Top cap for a wall panel in a space-divider system
Inventor: LOOMAN JAMES A
IPC: E04B2/82
Filed: 1991-04-08
Abstract: An end insert for a top cap on a wall panel comprises a extension member removably joined to a tail member. The tail member is received within a channel of the top cap and affixed to the top cap by sonic welding.      The extension member is an elastomer and has a stop flange which covers the open end, and a portion which extends away from the open end.
Patent CA-2041668-A1 (CA)
Inventor: KITAGAWA NOBUYUKI
IPC: B22F3/00
Filed: 1990-09-12
Abstract: Procédé de production de carbure fritté ou d'alliage de cermet consistant à mélanger et à malaxer la poudre de carbure fritté ou la poudre d'alliage de cermet avec un liant organique, à mouler la poudre mélangée en une forme déterminée par moulage à injection, à éliminer le liant organique du moule résultant et à fritter le moule pour obtenir un alliage compact. L'élimination du liant organique s'effectue pendant une première étape d'extraction dans une atmosphère de gaz inerte et successivement pendant une deuxième étape d'extraction sous vide inférieur ou égal à 1 Torr. Pendant la première étape d'extraction, la pression de l'atmosphère est maintenue à une valeur égale ou supérieure à la pression atmosphérique, afin d'empêcher la formation de défauts dans le moule. Après que de fins pores continus se soient formés à l'intérieur du moule, on maintient la pression de l'atmosphère à une valeur proche du vide, afin de provoquer l'évaporation du gaz de la surface et la libération du gaz produit à l'intérieur du moule.
Patent CA-2047062-A1 (CA)
Inventor: WURSCHUM HANS-PETER
IPC: G01N1/14
Filed: 1991-07-15
Abstract: ABSTRACT An analyzer is described including a scanning means for containers of different diameters arranged in a tray and filled with body fluid, said scanning means being arranged at an aspirating station.        The scanning means comprises two movable scanning elements and a sensor which is associated with said scanning elements and can be actuated by them.      The scanning elements are arranged normal to a pivotable transporter providing a transport path for the containers and, by means of, e.g. two spring elements, retained in initial positions towards the transport path.          Pivoting the transporter from a tray track to a scanning station for the containers moves the scanning elements to end positions and the sensor produces a signal which depends on the diameter of container positioned at the scanning station.  A container is thereby centered and fixed in a tray by means of scanning element and spring element and tray is centered and fixed on the transport path by means of scanning element and spring element.          The signal length produced by the scanning means and fed to a microprocessor of a control unit is used for controlling the position and dip-in speed of a proboscis of an aspirator when body fluid is removed from a container.
Patent CA-2049008-A1 (CA)
Title: Optically active dioxolanylacrylic and dioxolanylpropionic acid esters containing a mesogenic residue, a process for manufacturing them and their use as doping agents in liquid crystal mixtures
Inventor: MULLER INGRID
IPC: C09K19/34
Filed: 1990-03-07
Abstract: Abstract of the disclosure Optically  active  dioxolanylacrylates  and  dioxolanyl-propionates carrying a mesogenic radical, a process for their preparation, and their use as dopes in liquid-crystal mixtures.     Optically active 1,3-dioxolane derivatives, carrying a mesogenic radical, of the general formula (I)                      (I) are suitable as dopes in - in particular ferroelectric -liquid-crystal mixtures. The  symbols  in  the  general formula have the following meaning here: R1 is constructed analogously to the moiety of the general formula on the right of X or is an alkyl or alkylene [sic] radical which may be substituted, R2, R3 and R4 are H or alkyl (R4 is alternatively alkenyl), which may also be substituted [R2 and R3, together with the C(2) of the dioxolane ring, are a cycloaliphatic radical or a keto group], j, l and n are zero, 1 or 2, and k and m are zero or 1, with the proviso that n = zero if k = zero, m = zero if n = zero, and 1 ? j + 1 + n ? 3, -A1, -A2 and -A3 are an aromatic, heterocyclic or ali-phatic ring system, -M1 and -M2 are -CO-O, -O-CO, -CH2CH2, -CH=CH, -CH2O, -OCH2 or -C=C, and X is CH=CH or CH2-CH2.            The particular advantage of the compounds of the general formula  (I)  is that they are able to induce a high twisting power  in  a  cholesteric  phase,  but without significantly affecting, in the smectic C* phase, the magnitude of the spontaneous polarization already present in a mixture.  They are therefore suitable for pitch compensation,  in particular for ferroelectric liquid-crystal mixtures.
Patent CA-2051326-A1 (CA)
Inventor: CHUMAK FEDOR A
IPC: B03D1/14
Filed: 1991-09-13
Abstract: The automatic regulator device comprises a channel for measuring the level and density of pulp in the chamber of a floatation machine, in which two bubbling pipes are in communication with a differential pressure pickup connected to the input of a frother flow-rate regulating channel and to one input of a correction unit whose other input is connected to a pressure pickup communicating with one of the bubbling pipes. The output of the correction unit is connected to the input of a circuit designed to regulate the rate of flow of water with frother in a pulp level stabilizing channel, the output of said circuit being connected to an actuator valve installed on a Pipeline feeding water with frother and furnishing a control signal with respect to a pulp level deviation from a preset value. A water-and-frother flow transducer is connected to the input of a circuit designed to regulate the gangue discharge rate in the pulp level stabilizing channel, the output of said circuit being connected to the drive of the actuator valve installed on a gangue discharge branch pipe, said output developing a control signal with respect to a deviation of the water-and-frother flow rate from a preset value.
Patent CA-2051374-A1 (CA)
Inventor: MAZID ABDUL M
IPC: C12N9/10
Filed: 1990-04-12
Abstract: Specific sialyl transferases (ST) are important enzymes in the manufacture of carbohydrate moieties useful for pharmaco-logical purposes and for diagnostic and clinical procedure. The invention offers simplified methods to isolate highly specific forms of these ST enzymes by taking advantage of the affinity of the ST for its acceptor substrate in the presence of the sialyl-CMP analogs, such as CDP. Specifically exemplified are isolation of the alpha 2,3-ST, specific for Lec or LacNAc, and alpha 2,6-ST, specific for LacNAc.
Patent CA-2053459-A1 (CA)
Title: Method of controlling communication network incorporating virtual channels exchange nodes and virtual paths exchange nodes
Inventor: KATSUBE YASUHIRO
IPC: H04L12/931
Filed: 1991-10-15
Abstract: ABSTRACT OF THE DISCLOSURE      A method of controlling a communication network including VC exchange nodes and VP exchange nodes such that the cell flow of each VP can be maintained within the prescribed characteristic while the end-to-end cell transfer quality for VCs can be estimated easily and accurately. In the network, a cell transfer from the VC exchange nodes to the VP exchange nodes is controlled within prescribed traffic characteristics specified to VPs; a cell transfer quality at each of the VC exchange node is specified in terms of a first cell transfer quality dependent on the control of the cell transfer, and a second cell transfer quality independent on the control of the cell transfer; a cell transfer quality at each of the VP exchange node is specified by a third cell transfer quality independent on the control of the cell transfer alone; an end-to-end cell transfer quality for each VC in the network is estimated in terms of the cell transfer quality of each of the VC exchange nodes and the cell transfer quality of each of the VP exchange nodes; and the bandwidth management in the network is carried out such that the estimated end-to-end cell transfer quality becomes higher than a desired quality of service.
Patent CA-2054689-A1 (CA)
Title: An immunoassay method for determining the specificity of binding of a monoclonal antibody to an antigen
Inventor: LING VICTOR
IPC: G01N33/577
Filed: 1990-06-01
Abstract: An immunoassay method for determining the specificity of binding of a monoclonal antibody to an antigen is afforded by comparing the binding of antibody and antigen both with and without the addition of excess epitope specific peptide.
Patent CA-2055163-A1 (CA)
Title: Slot die of an extruder
Inventor: VOSS KLAUS-PETER
IPC: B29C48/08
Filed: 1991-11-08
Abstract: ABSTRACT     A slot die of an extruder for making sheeting consists of top and bottom die members having elongate die lins, which define an exit gap at its top and bottom. At least one of the two die lips, preferably the top one, is flexible because it is reduced in thickness in its forward portion. Spaced apart adjustable pins, which are held on abut-. ments that are fixed to the die, bear on said forward portion and deform the lip so that it extends along a curved line which depends on the adjustment of said pins. To permit the making of sheeting  in which the thickness deviations from a predetermined means thickness lie within desired tolerance limits,that portion of each adjustable pin which contacts the flexible portion of the die lip is provided with a poorly heat-conducting head and/or with a layer of heat-insulating material.
Patent CA-2058331-A1 (CA)
Title: Core-shell polymer
Inventor: SASAKI ICHIRO
IPC: C08F279/02
Filed: 1991-12-23
Abstract: ABSTRACT OF THE DISCLOSURE    Polyacetal resins can selectively be reduced in terms of surface gloss by the addition of a core-shell polymer. The core-shell polymer which serves as the surface gloss reducing agent is one which has a rubbery polymer as its core, and a glassy vinyl copolymer having an oxygenic group (e.g., a hydroxyl or glycidyl group) as its shell. Preferably, in sequential stages to form the core and shell polymers by use of an oligomeric surfactant. The core-shell polymer is most preferably present in the polyacetal compositions in an effective amount of between 1 to 50 parts by weight, based on 100 parts by weight of the polyacetal base resin.
Patent CA-2058846-A1 (CA)
Inventor: SANCHEZ JAMES M
IPC: E21B43/30
Filed: 1992-01-07
Abstract: A conduction heating, gravity assisted, single well, process for removing viscous hydrocarbonaceous fluids from a reservoir penetrated by a horizontal wellbore. Steam and a gas soluble in hydrocarbon-aceous fluids are circulated into the wellbore at or below the reservoir pressure through an upper perforated conduit of the horizontal wellbore.      Circulation is continued so as to allow steam to heat the reservoir by conductance while gas enters the hydrocarbonaceous fluids. Thus, heated hydrocarbon-aceous fluids having a reduced viscosity flow from the reservoir around the horizontal wellbore where the fluids are produced to the surface by a lower conduit within the horizontal wellbore. The lower conduit is open along its length so as to be in fluid communi-cation with the reservoir for the length of the horizontal wellbore.
Patent CA-2060101-A1 (CA)
Title: Fishing device
Inventor: SAVILLE GARY B
IPC: A01K97/12
Filed: 1992-01-27
Abstract: ABSTRACT OF THE INVENTION          FISHING DEVICE     A fishing line holder is loosely held at a mid-upper part of its elongated body to a stand member adapted to be stuck into the ice, snow or earth adjacent a fishing hole. The holder has a plurality of weight means slidably mounted within it and has fishing line wound around the body of the holder adapted to be unwound by the pull on the line by a fish or the like which pull also disturbs the weights counterbalancing the holder which tips up the holder at its pivot with the stand thereby indicating to a fisherman that a fish is on the line,
Patent CA-2061115-A1 (CA)
Title: Advanced proof-of-rotation switch
Inventor: JONES ROBERT E
IPC: F23N1/00
Filed: 1992-02-12
Abstract: A HVAC system (10) employs a gas valve (20) to supply gas for combustion within a heating portion (12) of the system.  An exhaust (22) removes combustion products using a motor (28) driven exhaust fan (24).  An apparatus (34) controls combustion and uses a sensor (36) for sensing the rotational speed of a motor shaft (26).  A switch (T1) is responsive to sensed motor speed to open and close the valve, the valve being opened only if the motor is operating within a predetermined speed range.          A first speed discriminator (48A) enables of the switch to open the valve when the motor speed exceeds a first predetermined value.  A second speed discriminator (48B) disables the switch to close the valve when motor speed exceeds a second and higher predetermined speed which is indicative of a blocked exhaust, or a fan blade is loose.  This latter action insures that a build-up of potentially dangerous exhaust gases cannot occur.
Patent CA-2062201-A1 (CA)
Title: Process for the preparation of chemically homogeneous cycloolefin copolymers
Inventor: BREKNER MICHAEL-JOACHIM
IPC: C08F232/08
Filed: 1992-03-06
Abstract: Process for the preparation of chemically homogeneous cycloolefin copolymers Chemically homogeneous cycloolefin copolymers of polycyclic olefins, such as, for example, norbornene or tetracyclododecene, with cycloolefins and/or acyclic olefins are obtained without ring opening and in a high space-time yield if a catalyst system is used which comprises an aluminoxane and a stereorigid metallocene compound of an element from groups IVb to VIb, of the formula (See formula I) the part of the metallocene molecule formed by M1 and the substituents R16-R17 having C1-symmetry or being in the meso-form.
Patent CA-2067792-A1 (CA)
Inventor: GOBEL RICHARD J
IPC: C02F11/12
Filed: 1990-08-20
Abstract: A dryer drum for drying bulk material including a rotating drum (10) having an inlet (12) for material to be dried at one end and an outlet (13) for dried material at the other end, a center shaft (11) extending therethrough, vanes (19, 20, 23, 24) mounted on the shaft (11) circumferentially spaced from each other and axially spaced along the shaft (11), the vanes (19, 20, 23, 24) having a first panel (26) extending substantially in a radial plane parallel to the axis of the shaft (11), a second panel (27) attached to the first panel (26) and facing in a downstream direction and a third panel (29) attached to the second panel (27); wherein the bulk material to be dried moves in sliding movement over the panels (26, 27, 29) and is mechanically conveyed toward the dryer inlet (12).
Patent CA-2068838-A1 (CA)
Title: Broaching device for a silo
Inventor: FAUL JOSEF
IPC: B65G65/48
Filed: 1992-05-15
Abstract: A broaching device for a silo is comprised of a rotor and at least one broaching arm connected to the rotor. The broaching arm comprises leaf springs that are stacked on top one another to form a leaf spring packet. The broaching arm further comprises brackets for holding the leaf springs together. The broaching arm extends to the wall of the silo and is curved opposite to a direction of rotation of the rotor. A holder is connected to one of the leaf springs arranged in a center position of the leaf spring packet at a free end thereof. Outwardly positioned leaf springs of the leaf spring packet are slidably supported at the holder. A broaching tool is attached to the holder of the broaching arm.
Patent CA-2069542-A1 (CA)
Inventor: GURTLER WILLIAM
IPC: F17D1/02
Filed: 1992-05-26
Abstract: The method of delivering to and from and storing in a pipe loop two different high vapor pressure hydrocarbons, the pipe loop having a first leg and a second leg, the first leg and second leg of the pipe loop being respectively connected to a main pipeline, a displaceable hatching pig in the pipe loop for separating the first and second high vapor pressure hydrocarbons on either side of the displaceable hatching pig in the pipe loop, means for delivering high vapor pressure hydrocarbons to and from the main pipeline to either leg of the loop on either side of said displaceable batching pig, the method comprising the steps of receiving one type of high vapor pressure hydrocarbons on one side of said displaceable hatching pig while simultaneously displacing an equal quantity of a second type of high vapor pressure hydrocarbons from the opposite side of said displaceable hatching pig while the displaceable batching pig is moved away from the end of the elongated pipe loop receiving the first type of high vapor pressure hydrocarbons towards the end of the pipe loop from which the second type of high vapor pressure hydrocarbons is being delivered, terminating the delivery of the second type of high vapor pressure hydrocarbons and commencing receipt of the second type of high vapor pressure hydrocarbons in the end of the pipe loop previously delivering the second type of high vapor pressure hydrocarbons, terminating the receipt of the first type of high vapor pressure hydrocarbons in the opposite end of the pipe loop and delivering the second type of high vapor pressure hydrocarbons to the main pipeline from the end of the pipe loop previously receiving the first type of high vapor pressure hydrocarbons while the displaceable batching pig moves from the end of the pipe loop now receiving the second type of high vapor pressure hydrocarbons towards the end of the pipe loop from which the first type of high vapor pressure hydrocarbons is now being delivered.