baber/WOPTO huggingface dataset:
Patent CA-2029822-A1 (CA)
Inventor: HAAS JON A
IPC: E21B4/14
Filed: 1990-11-13
Abstract: A   self-propelled  impact  boring  tool  which  has  a simplified tail assembly so that the tool can be readily assembled and dissembled to allow  replacement of worn parts.  Such  a tail assembly includes a  nut and an  end cap  which can  be secured  together by  a series of  conventional bolts which extend into  threaded holes in the nut.  The nut,  which is screwed into the  rear end of the  tool body, can  be clamped in position with the  screws with far less torque than would otherwise be required with a conventional, unitary tailpiece.  A striker having a simplified, tubular construction is provided.  Such a striker has an annular impact surface and radial ports at both ends of the striker which communicate with frontwardly  and rearwardly opening recesses in the striker, respectively.  Identical, readily replaceable bearing  seals are  provided near opposite  ends of the striker.  The striker may also have an internal  cavity in which a vibration dampen-ing material may be  disposed.  An improved stepped air inlet valve is threadedly coupled to the tail nut to provide a reversing function.  A flexible tubular  hose enters  the  rear of  the tool  and  preferably extends all the  way to the rearwardly opening recess  in the striker, in  which it  is  secured to  the inside  of a  tubular  bushing which engages the inner surface  of the recess to provide the stepped end of the air inlet.  An adjuster sleeve having exterior threads couples the hose  to the  threaded central  hole of  the tail  nut.   The adjuster sleeve and  nut may be coupled by  a large pitch, double-helix thread-ing, so that the tool can be switched to reverse mode with fewer turns of the hose, and  with less likelihood of  becoming jammed.  The  tool body is formed by swaging a steel tube to form the tapered nose of the tool.   This process results in less  wasted steel as compared to con-ventional machining of a  solid steel bar to  form the body, which  is the largest single part of the tool.
Patent CA-2034866-A1 (CA)
Title: Compactor for recyclable waste materials
Inventor: BRISSON DAVID J
IPC: B65F3/20
Filed: 1991-01-24
Abstract: Abstract of the Disclosure A compacting apparatus for recyclable waste materials is particularly adapted to be mounted on recycling collection vehicle to allow the additional collection of large volume recyclable containers, such as large plastic beveragge bottles and the like.  The compactor apparatus occupies a very small total volume, but provides a highly efficient compaction of the recyclable materials thereby allowing it to be added to existing vehicles without significantly increasing the overall size.  The apparatus utilizes a flow-through arrangement including an inlet hopper on one end of the housing and a serially connected payload chamber having an outlet on the opposite end of the housing.  A hopper platen is rotatably mounted on one end of a slide panel for sequential rotary and linear movement to sweep uncompacted materials from the hopper and compact them into the payload chamber.  A load ejection panel is rotatably mounted in the payload chamber to cooperate with the slide panel in one position to establish the front wall of the chamber and to rotate to a second position to eject the compacted mass through a rear door in the housing. The payload chamber has a unique forwardly divergent interior shape to help prevent reverse movement of compacted material from the payload chamber back into the hopper.  The rear ejection door in the housing is preferably connected with a direct mechanical link to the load ejection panel so that the two operate in unison for load discharge, thereby eliminating the potential problem of the rear door inadvertently springing open under the pressure of the compacted material.
Patent CA-2039377-A1 (CA)
Title: Yeast strains with enhanced trehalose content, process to obtain such yeasts and the use of these yeasts
Inventor: DRIESSEN MARIANNE
IPC: A21D8/04
Filed: 1991-03-28
Abstract: ABSTRACT            NEW YEAST STRAINS WITH ENHANCED TREHALOSE CONTENT, PROCESS     TO OBTAIN SUCH YEASTS AND THE USE OF THESE YEASTS.            A transformed yeast is disclosed, comprising at least one gene encoding neutral trehalase or trehalose-6-phosphate synthase which gene has been modified such that it differs from a corresponding wild-type gene encoding neutral trehalase or trehalose-6-phosphate synthase, the yeast having as a result a different trehalose content from the untransformed parent yeast. The sugar resistance and drying resistance of the yeast compared to those of the untransformed strain are thereby improved.
Patent CA-2039742-A1 (CA)
Title: Tablet composition and method for problem pharmaceutical materials
Inventor: DENNIS ANDREW B
IPC: A61K31/135
Filed: 1991-04-04
Abstract: TU30 TABLET COMPOSITION AND METHOD FOR PROBLEM PHARMACEUTICAL MATERIALS Abstract In accordance with the present invention an improved tablet composition for drugs or active ingredients prone to poor tabletting properties is disclosed. The improved composition comprises a premixture, consisting essentially of between about 85 and 99.9 percent by weight of the active ingredient and between about 0.1 and 15 percent by weight of citric acid, and one or more other formulation ingredients added to the premixture. The present invention also involves the process for making such compositions and products therefrom.
Patent CA-2040585-A1 (CA)
Title: Catalytic distillation structure
Inventor: ADAMS JOHN R
IPC: B01D3/00
Filed: 1991-04-16
Abstract: ABSTRACT OF THE DISCLOSURE    The  present  invention  provides  catalytic  distillation structures  which  are  useful  in  the  concurrent  reaction  and distillation of a reaction mixture.  The distillation structures are provided as rigid containers having a volume substantially smaller  than the  volume  of  conventional  distillation  column reactors.   The catalyst component is loaded into the containers and the containers closed.  Openings are provided to allow vapor and liquid passage into and out of the containers.  The surfaces of  the  containers  provide  the necessary/vapor liquid contact surfaces for the distillation.   The rigidity of the containers provides for spacing the structures and the necessary free space for the distillation.
Patent CA-2041524-A1 (CA)
Title: Induced gas liquid coalescer and flotation separator
Inventor: CAIRO JOHN A JR
IPC: B01D17/02
Filed: 1991-04-30
Abstract: Simplified single cell fluid flow apparatus for flota-tion removal of suspended impurities and liquids are provided wherein the method and apparatus are directed to an induced gas liquid coalescer for flotation separation of suspended impuri-ties. The apparatus provides for a separation vessel which can be fabricated to withstand internal pressure requirements experienced in flotation separation devices wherein the apparatus induces maximum gas volumes consistent with optimum mass transfer of gas medium to suspended impurities in the liquid while controlling intercell or vessel chamber turbulence. Such maximum gas induction achieved without turbulence is through the use of microscopic gas bubbles. Such microscopic gas bubbles provide massive surface area with which the suspended impurities adhere and allows for various apparatus utilization. The continuous operation of the clarification separation is also enhanced by utilization of a sensing probe means for detecting high oil con-tent in combination with diversion means for removing oil slugs to skim removal means as a result of reducing the clarified liquid removal from the bottom portion of the separation chamber.      Resultant high oil concentration purge is achieved, nullifying contaminated effluent water discharge from the vessel.
Patent CA-2045662-A1 (CA)
Title: Binary floating point arithmetic rounding in conformance with ieee 754-1985 standard
Inventor: LIU CLIF
IPC: G06F7/38
Filed: 1990-12-17
Abstract: 2045662 9110189 PCTABS00006 A method and a high speed processor (HSP) incorporating that method are set forth for processing signals representing outputs generated by remainderless division algorithms (102) and remainderless square root algorithms so as to obtain rounded outputs (112) conforming to the IEEE 754-1985 binary floating point arithmetic standard. The method and procedure of the present invention allow the solutions of floating-point computations to be rounded such that sign bits, as well as binary bits, of the rounded results are in full compliance with all guidelines of the stated standard.
Patent CA-2046577-A1 (CA)
Title: Process for the production of phosphated guar
Inventor: YEH MICHAEL H
IPC: C08B37/00
Filed: 1991-07-09
Abstract: ABSTRACT OF THE DISCLOSURE    A process for  preparing water-soluble  phosphate esters  of guar gum by  mixing the guar  with aqueous solution  of a  sodium salt of phosphoric acid having a pH of about 5 to about 7, drying the mixture to a moisture content of about 5 to about 12 percent, and heating the mixture in a  closed chamber at a temperature  of about 150°C to about 180°C for about 1 to 5 hours.          HPP:jf pat/hpp/p542.
Patent CA-2048106-A1 (CA)
Title: Injection molding machine with pressure assist nozzle
Inventor: POEHLSEN RUDOLPH H
IPC: B29C45/57
Filed: 1991-07-30
Abstract: ABSTRACT OF THE DISCLOSURE          An  injection mold machine  is  disclosed  having  a pressure assist nozzle.  The machine has an extruder, a nozzle, and an housing mounted between the extruder, and nozzle.  The housing encloses the pressure  assist nozzle  and a  fluidic passage connecting the extruder and the nozzle.  A bore within the housing  extends  into the  fluidic  passage to define  a portion of the passage between the extruder and the nozzle.         The bore has an aperture within a side wall which acts as a valve opening within the passage which, when closed, prevents flow between the extruder and the nozzle.  An annular sleeve is reciprocated within the bore between a retract position,  in which the annular sleeve is withdrawn from the passage, and an extend position, in which the annular sleeve is projected into the passage so as to close the aperture.  A plunger piston reciprocally resides within the annular sleeve.  The plunger piston is held in a retracted position by the annular sleeve while the annular sleeve is in its retract position.  When the annular sleeve has been actuated to close the aperture, the plunger piston becomes coupled with the annular sleeve and accompanies the  annular sleeve  as  it continues  toward the extend position such that the plunger piston acts to compress the melt within the molds.
Patent CA-2049580-A1 (CA)
Inventor: ZHANG YUN H
IPC: A47C7/34
Filed: 1991-08-20
Abstract: The pressure balanced torsion system is for use in a backrest and the like. The system has a plurality of torsion action assemblies. Each assembly consists of a pair of pressure bearing plates mounted at the free ends of a torsion spring. The torsion spring is pivotally mounted to a rigid support plate which forms the back plate of the backrest. When a body rests against the backrest, the counter reactive force generated by the assembly causes both pressure bearing plates to push back against the body until the torsion is balanced, thus providing a uniform support to the body.
Patent CA-2050136-A1 (CA)
Title: Arylmethylols, their preparation and their use
Inventor: BRAEUNLING HERMANN
IPC: C08G61/04
Filed: 1991-08-28
Abstract: NOVEL ARYLMETHYLOLS, THEIR PREPARATION AND THEIR USE     ABSTRACT OF THE DISCLOSURE     Compounds of the formula (1)                       ( 1 ), wherein Rl, R2, R3, R4, R5, R6, R7 and R8 have the meanings given in the description, and the other radicals have the following meanings:     X, Y and Z     denote identical or different divalent radicals -O-, -S-, -N(R9)- or -C(R10)=C(Rll)-, with the proviso that at least one of the radicals X, Y and Z ls not a radical of the formula -C(R10)=C(Rll)-, and wherein R9        is a hydrogen atom, a branched or unbranched C1- to C8-alkyl radical or an optionally substituted phenyl radical, and R10 and R11 are, in each case, identical or different radicals which have one of the meanings of Rl, 1211--L.can R7 and R8   denote identical or different radicals, that is to say hydrogen atoms or C1- to C6-alkyl or phenyl radicals, and n, m and o  denote identical or different integers with a value of from 1 to 10.     Also provided are a process for the preparation of these compounds, processes for their polymerization, novel polymers which can be prepared in this manner and the use of the polymers.
Patent CA-2050638-A1 (CA)
Title: Reinforced thermoplastic composites
Inventor: HANLEY STEPHEN J
IPC: C08K9/06
Filed: 1991-09-04
Abstract: A B S T R A C T                 REINFORCED THERMOPLASTIC COMPOSITES      Reinforced thermoplastic composite comprising a linear alternating polymer of at least one ethylenically unsaturated compound and carbon monoxide, and a glass fibre reinforcement having a coating of a sizing material, wherein the sizing material comprises both aminosilane and polyurethane functionalities.
Patent CA-2052388-A1 (CA)
Title: Stays
Inventor: DOLMAN TERENCE J
IPC: E05D15/30
Filed: 1991-09-27
Abstract: ABSTRACT                           STAYS        A stay for, for example, a window has a channel section for connection to the fame and an arm for connection to the opening window leaf.  A linkage extends between the arm and the channel and includes  a  slider on which is mounted at least one of the links and which slides along the channel during opening  and  closing movement of the arm.        In one embodiment, the slider carries on elongate member which is biased into  a  position in which  the  member engages a stop on the channel to restrict the opening movement of the arm.  A member can be depressed to disengage it from the slot and allow full opening movement of the window.        In a second embodiment a device is provided between the slider and the base channel for selective operation to limit the opening movement of the leaf.  This device may be an elongate removable intermediate stop that prevents the arm opening to the maximum extent and limits the opening to a point at which, for example, ventilation is provided but access through the window is not possible.   As a second possibility a screw may be provided on an elongate restrictor bar attached to the slider so that when the screw is in an operative position it contacts the stop before the leaf is fully open.  A third possibility is to provide a screw on the slider which, when moved to an operative position, engages the slider.
Patent CA-2053111-A1 (CA)
Title: Internal valve for pressure fluid containment vessels
Inventor: ZINK DONALD G
IPC: F16K51/00
Filed: 1991-10-09
Abstract: An internal valve for pressurized fluid containment vessels having vessel ports. The valve includes a valve seat associated with the vessel port and a valve member movable between a closed posi-tion against the valve seat and an open position wherein fluid can flow through the vessel port. A control chamber positioned in the vessel is connected to the valve member. A motive mechanism acting on or in the control chamber, by a control system outside of the ves-sel, controllably moves the valve member to at least one of the open or closed positions. The control chamber is sealed from fluid in the vessel by a sealing system, which includes a flexing surface against which fluid pressure in the vessel acts to thereby bias the valve mem-ber towards one of the open or closed positions.
Patent CA-2053633-A1 (CA)
Title: Automotive intake manifold with integral alternator
Inventor: GAJEWSKI ARTHUR J
IPC: F01P3/20
Filed: 1991-10-17
Abstract: ABSTRACT    An intake manifold and alternator system for an internal combustion engine includes a manifold for conveying intake charge to a plurality of cylinders of an engine and an alternator driven by the engine, with the alternator being housed within a cavity formed within the manifold.  Passages conduct liquid coolant from the manifold to the alternator for the purpose of dissipating heat arising within the alternator.     6027F/89-228 & 90-383
Patent CA-2054727-A1 (CA)
Title: Method of and apparatus for treating pulp
Inventor: HENRICSON KAJ
IPC: D21C9/10
Filed: 1990-03-29
Abstract: The present invention relates to a method of and an apparatus for treating pulp. The apparatus according to the present invention is especially suitable for carrying out bleaching processes of the wood processing industry and for separation of residual gases remaining in the suspension in the processes. The method of the present invention is characterized in that pulp at the consistency range of 8 to 20 % is subjected to at least the following treatment steps in a closed pressurized process: feeding pulp with a pump to a chemical mixer; mixing chemicals with the pulp;  introducing the pulp flow by means of the pressure of the pump to a process vessel; treating the pulp with chemicals in the process vessel;  removing gases from the pulp in connection with the process vessel or after it in a closed pressurized separator; in the gas separation, preventing fibers from exiting with the gas; and guiding the pulp via a closed path to a following process step. The apparatus according to the present invention is in turn characterized in that the rotor (10) preferably comprises a rotationally symmetric shell (110) which is centrally mounted on a flange (20) disposed substantially perpendicular to the shaft (12) of the rotor (10), and the end of which adjacent to the flange (20) has openings (112) for removal of the gas-free suspension towards the outlet (58).
Patent CA-2055787-A1 (CA)
Title: Films for packaging low-viscosity rubbers
Inventor: BREUKER WALTER
IPC: C08L25/10
Filed: 1991-11-18
Abstract: ABSTRACT        A film prepared from a thermoplastic moulding composition comprising a mixture of components 1 and 2, wherein component 1 is a high-impact graft copolymer containing from 95 to 85 % of a vinylaromatic and from 5 to 15 % of a 1,3-diene, and component 2 is a linear or radial block copolymer containing from 25 to 45 % of a vinylaromatic and from 75 to 55 % of a 1,3-diene, and component 1 makes up from 55 to 70 % of the mixture.  The film has significantly improved tensile strength, high elasticity, excellent solubility in monomeric vinylaromatics low gel content and good weldability and is suitable for packaging low-viscosity rubbers, in particular those used as impact-modifiers for thermoplastics.
Patent CA-2057324-A1 (CA)
Title: Benzamide and sulfonamide hypoglycemic agents
Inventor: FITCH LORA L
IPC: C07C311/21
Filed: 1991-12-10
Abstract: Abstract The present invention provides novel benzamides and sulfonamides, formulations thereof, and interme-diates thereto.  The benzamides and sulfonamides of the present invention are useful as hypoglycemic agents and, accordingly, a method of using such compounds to lower a mammal's blood glucose level is also provided.
Patent CA-2057634-A1 (CA)
Title: Catalyst for purification of exhaust gases
Inventor: ITOH TAKASHI
IPC: B01D53/86
Filed: 1991-12-13
Abstract: Abstract of the Disclosure There is described a catalyst for purification of exhaust gases containing nitrogen oxides wherein oxygen is co-existent in excess of a stoichiometric amount, characterized in that a coprecipitated mixed oxide of copper and tin is loaded on a carrier composed of at least one type selected from the group consisting of crystalline aluminosilicate, aluminogallosilicate and gallosilicate, or the coprecipitated mixed oxide of copper and tin and further at least one noble metal selected from the group consisting of platinum, palla-dium, rhodium, iridium, ruthenium, silver and gold are co-loaded thereon.          This invention provides a lean NOx purification catalyst having high NOx purification performance and markedly increased durability over a wide temperature range.
Patent CA-2058012-A1 (CA)
Title: Bisphosphonic acid derivatives, their production and use
Inventor: SOHDA TAKASHI
IPC: C07F9/6509
Filed: 1991-12-18
Abstract: Abstract of the disclosure:             BISPHOSPHONIC ACID DERIVATIVES, THEIR PRODUCTION AND USE      A compound of the formula (I):                  (I) wherein W is a group of the formula:          ?-O-(CH2)n-wherein ? is a cyclic group which may be substituted, n is an integer of 2 to 10, or W is a group of the formula:          R1-X-(CH2)n'-wherein R1 is an alkyl group which may be substituted, X is an oxygen atom or a sulfur atom which may be oxidized, n' is an integer of 4 to 10; R2 is a hydrogen atom or a lower alkanoyl group; R3, R4, R5 and R6 are the same or different and are a hydrogen atom or a lower alkyl group, or a salt thereof, is useful as a bone resorption inhibitor.
Patent CA-2060858-A1 (CA)
Title: Substituted arylsulphonylaminoguanidinotriazines
Inventor: GESING ERNST
IPC: C07D251/44
Filed: 1992-02-07
Abstract: ABSTRACT OF THE DISCLOSURE        Herbicidally active substituted arylsulphonylamino guanidinotriazines of the general formula (I) (I)   in which R1  represents in each case optionally substituted aryl, aralkyl or heteroaryl, R2   represents  hydroxyl,  amino  or in each case optionally substituted alkoxy or alkylamino, R3   represents  halogen,   alkyl,   halogenoalkyl, alkoxyalkyl, alkoxy, halogenoalkoxy, alkylthio, halogenoalkylthio, alkylamino or dialkylamino and R4   represents halogen, alkyl, cycloalkyl, alkoxy, alkylthio, alkylamino or dialkylamino, excepting the compounds N'-(4,6-dimethoxy-s-triazin-2-yl)-N''-(2-methoxycarbonyl-phenylsulphonylamino)-N'''-(2-bromophenylsulphonyl)-guanidine,   N'-(4,6-dimethoxy-s-triazin-2-yl)-N''-(2-methoxycarbonyl-Le A 28 200 phenylsulphonylamino ) -N ' ' ' - ( 2-phenyl-phenylsulphonyl ) -guanidine, N '-(4-methoxy-6-methyl-s-triazin-2-yl ) -N ' ' - ( 2-methoxycarbonyl-phenylsulphonylamino ) -N ' ' ' - ( 2 -phenyl-phenylsulphonyl)-guanidine, N ' - (4,6-dimethoxy-s-triazin-2-yl)-N''- (2-methoxycarbonyl-phenyl-sulphonylamino)-N'''-(2-methylthiophenyl sulphonyl)-guanidine and N-(4,6-dimethoxy-s-triazin-2-yl)-N''-(2-methoxycarbonyl-phenylsulphonylamino)-N'''-(2-isopropoxycarbonyl-phenylsulphonyl)-guanidine, their preparation, and their use as herbicides.     Le A 28 200
Patent CA-2063075-A1 (CA)
Title: Autogenous roasting of iron ore
Inventor: CAVANAGH PATRICK E
IPC: C22B1/04
Filed: 1992-03-13
Abstract: Iron ore concentrate is converted to magnetic gamma hematite in an autogenous roasting operation which is self-sustaining. The iron ore concentrate is preheated and contained magnetite is oxidized to hematite. Hematite is reduced to magnetite using carbon monoxide. After cooling, the magnetite is oxidatively exothermically converted to magnetic gamma hematite. The thermal energy resulting from the latter step is recycled to the preheating and reduction steps while thermal energy resulting from the cooling step also is recycled to those steps. The magnetic gamma hematite may be subjected to magnetic separation to produce a very low silica high purity iron oxide concentrate, which may be blended with high silica concentrate to provide a pellet feed for making blast furnace feed pellets. <IMAGE>
Patent CA-2063108-A1 (CA)
Title: Apparatus for the production of plastic pipes
Inventor: HEGLER RALPH-PETER
IPC: B29C48/13
Filed: 1992-03-16
Abstract: An apparatus for the manufacturing of plastic pipes has half shells of which two at a time combine as a pair to form a mold. It is provided with a temperature-regulating bell. Supply lines are formed as flexible supply hoses of temperature-resistant plastic material. A line conduit accommodating them is provided with a protecting tube, which accommo-dates the supply hoses and which is provided with a heat insulation towards an injection head.