baber/WOPTO huggingface dataset:
Patent CA-1080564-A (CA)
Inventor: TIMMERMAN ROBERT W
IPC: F24D19/10
Filed: 1978-04-11
Granted: 1980-07-01
Abstract: HEATING SYSTEM          Abstract of the Disclosure A system for utilization of waste heat streams, such as from a power plant, for the heating of buildings or for other uses of heat streams under 200°F. employing preferably a multi-stage heat pump selectively operable to raise the temperature of the building heating system (heated fluid) above the temperature of the waste heat stream (heating fluid).  The multi-stage heat pump comprises separate stages each including an evaporator, condenser and com-pressor, and a heat exchanger.  The heat pump may be connected either as a counter flow heat pump or a parallel flow heat pump.          The control of the system is in at least two different modes dependent upon the demand (load).  In the low load mode heat transfer to the building heating system occurs without operation of the heat pump.  In this mode heat transfer occurs with the heat exchanger operating in combination with passive evaporator-condensor action with the compressor of the heat pump being by-passed to maintain the heated fluid outlet temperature at a preset value by controlling mass flow of the heating fluid as a function of sensed heated fluid outlet temperature.  Once the load increases past a predetermined point the heat pump is acti-vated and maintains the heating fluid outlet temperature constant.          At short peak loads the total mass flow into the heat pump is limited thus relying upon the heat pump to extract more heat from the heating fluid to meet the peak loads.  The control of the heating fluid stream is preferably accomplished with a single valve controlled as a function of the three variables; 1. heated fluid outlet temperatures; 2. heating fluid outlet temperature; and 3. mass flow. 1.
Patent CA-1079726-A (CA)
Title: 2'-hydroxy-2-(5-isoxazolylmethyl)-6,7-benzomorphanes, their acid addition salts and pharmaceutical comprising same
Inventor: MERZ HERBERT
IPC: A61K31/435
Filed: 1978-04-14
Granted: 1980-06-17
Abstract: ABSTRACT OF THE DISCLOSURE    This invention relates to novel derivatives of 6,7-benzomorphane of formula:                                 (I) (wherein R1 represents a methyl, ethyl or propyl group; and R2 represents a hydrogen atom or a methyl or ethyl group) and pharmaceutically acceptable acid addition salts thereof.  These compounds have interesting pharmacological properties and, in particular, they exhibit activity on the central nervous system and have analgesic and morphine-antagonistic properties.  Processes for the preparation of the novel compounds are desribed and exemplified and ex-amples of pharmaceutical compositions containing the novel compounds are given.
Patent CA-1104082-A (CA)
Inventor: REYNOLDS RONALD W
IPC: C10M101/02
Filed: 1978-04-19
Granted: 1981-06-30
Abstract: ABSTRACT OF THE DISCLOSURE     A process for making refrigeration oils without acid treating and clay contacting steps which comprises subjecting a naphthenic oil to a first hydrogenation step at a temperature of from about 550° to about 660°F, a hydrogen pressure of from about 500 to about 1500 psig., and in the presence of a nickel-molybdenum or cobalt-molybdenum catalyst, subjecting the hydrogenated oil to a second hydrogenation treatment under the same conditions, catalytically dewaxing the twice hydrogenated oil and percolating the dewaxed oil through bauxite.
Patent CA-1103825-A (CA)
Inventor: SCHWAB GERHART
IPC: B41M5/132
Filed: 1978-05-01
Granted: 1981-06-23
Abstract: Abstract of the Disclosure This invention relates to a process for the production of hot melt coating compositions containing microcapsules and inorganic pigment particles comprising the following: A n aqueous dispersion of microcapsules is prepared. Inorganic pigment particles are added to the aqueous dispersion of the micro-capsules and mixed.  The dispersion of the microcapsules and the inorganic pigment particles are sprayed into a heated atmosphere, thereby drying the dispersion and producing a free-flowing powder of the microcapsules.  The inorganic pigment particles are substantially deposited on and adhere to the microcapsules.  The free-flowing powder of the microcapsules having the inor-ganic pigment particles deposited thereon are then dispersion in a liquid hot melt suspending medium.  The liquid hot melt coating composition so produced can be coated on a substrate.  The invention further relates to a coating composition comprising microcapsules, from about 0.1% to about 20%, by weight, inorganic pigment particles based on the weight of the microcapsules and a hot melt suspending medium.  The inorganic particles are substantially deposited on and adhered to the microcapsules.
Patent CA-1115024-A (CA)
Inventor: DE LOCKERENTE SERGE R
IPC: C22B3/46
Filed: 1978-05-08
Granted: 1981-12-29
Abstract: ABSTRACT OF THE DISCLOSURE           A process of hydrometallurgical treatment for removing metal impurities from zinc sulfate solution containing Fe+++ ions includes adding to said solution a silicate capable of forming dissolved silicic acid in situ, and a neutralizing base to provide a pH between 1.5 and 4.5.  The metal impurities are precipitated as a solid residue on a base of iron silicate.
Patent CA-1091099-A (CA)
Inventor: PORTER JAMES H
IPC: F22B31/00
Filed: 1978-06-05
Granted: 1980-12-09
Abstract: FLUIDIZED-BED COMBUSTOR     ABSTRACT OF THE DISCLOSURE            A coal-dolomite mixture is ground into particle-sized bits and fed into a downward sloping duct beneath the distributor plate in a fluidized-bed combustor.  High velocity air is introduced through ports spaced at intervals along the bottom of the duct, thereby entraining the mixture in an air stream. The air and entrained solid is guided upward into a slot-like chamber which passes through the distributor plate and opens into the fluidized bed a distance above the plate.  Vanes in the duct and chamber and baffles above the chamber exit control the flow of the air and entrained solids so that the coal-dolomite mixture is evenly distributed throughout the fluidized bed.  The distributor plate is covered with a layer of high temperature alumina stones graded in size, with the coarse stones in closest contact with the plate and the fine stones on top, thereby shielding the plate from the high temperatures of the combustion zone and preventing the weeping of hot and ash burning coal particles onto the plate. The stones are large enough so that they do not fluidize.
Patent CA-1096938-A (CA)
Inventor: LAND EDWIN H
IPC: H01M4/02
Filed: 1978-06-29
Granted: 1981-03-03
Abstract: Abstract of the Disclosure A laminar battery comprising subassemblies made by laminating regenerated cellulose to a sheet of conductive plastic on which a series of metallic electrodes have been formed in a series of regions within the confines of the sheet, in which the regenerated cellulose is caused to adhere to the plastic and to the electrode patches by feeding the regenerated cellulose and the conductive plastic between nip rolls under pressure and supplying a small amount of an aqueous bonding composition containing a small amount of a water soluble bonding agent between the layers ahead of the nip in the rolls.  The laminate so made is dried in air and may be rolled for storage and later assembly into batteries.  Electrical cells and batteries made with the process just outlined.
Patent CA-1101350-A (CA)
Inventor: MITCHELL DAVID S
IPC: B01D11/00
Filed: 1978-07-17
Granted: 1981-05-19
Abstract: ABSTRACT OF THE DISCLOSURE     SOLVENT EXTRACTION PROCESS     A method is disclosed for solvent-extracting an extractable component from a mixture including the extractable component and sub-divided solids, comprising: (a) maintaining a vertically extending bed comprising the solids in an extraction zone and introducing the mixture into an upper portion of the bed; (b) introducing a vapor-izable liquid solvent into the upper portion of the bed; (c) providing a substantially continuous gaseous phase in contact with a lower portion of the bed; (d) maintaining a substantially continuous liquid phase comprising the solvent in contact with the upper por-tion of the bed above the gaseous phase, the liquid phase and gaseous phase having an interface at a vertically intermediate level, extracting the extractable component from the mixture by passing the solvent through the upper portion of the bed, and removing a liquid stream including the solvent and the extractable component from the extraction zone; (e) preventing the liquid phase from flowing downwardly through the lower portion of the bed by maintaining the gaseous phase at a pressure sufficient to support the liquid phase thereon, and vaporizing liquid adhering to solids in the lower por-tion of the bed; and (f) removing the solids from the lower portion of the bed.
Patent CA-1118388-A (CA)
Inventor: MCKNIGHT HUGH P
IPC: G01F17/00
Filed: 1978-08-08
Granted: 1982-02-16
Abstract: Abstract An improved apparatus for inspecting the fill content quantity of individual capsules comprising:  a capsule transfer mechanism; a capsule supply unit comprised of a plurality of vertical chambers for receiving capsules, said chambers being arranged in a circular pattern and connected to a rotary power drive; an inspection station; and an ejection station; wherein the improvement of the capsule transfer mechanism comprises; a rotatable transfer platform having a plurality of vertical hollow receiving tubes connected to a vacuum means, each of said tubes being in axial alignment beneath a respective one of said vertical chambers for at least a part of its rotary cycle; and a means for regulating the delivery of said capsules onto the free ends of said tubes in an upright position.
Patent CA-1087219-A (CA)
Inventor: GROOSS FRANK A
IPC: B60K15/00
Filed: 1978-08-10
Granted: 1980-10-07
Abstract: ABSTRACT OF THE DISCLOSURE      A low-profile vehicle, such as a loader for use in a mine or the like, has fuel tanks secured to the rear of the main frame to form the rear bumpers and counter-weights for the vehicle.  A center bumper is attached to the tanks and extends therebetween.  The center bumper has a  cutout intersected by a draw pin.  The tanks are interconnected by a common drawtube from which fuel is picked up for and returned from the engine.  Apertured stiffening plates are mounted in the tanks to reinforce the walls of the tank and to form baffles for the fuel in the tanks. Vents, guards, quick fill and conventional fuel inlets are provided on the tank.
Patent CA-1116917-A (CA)
Inventor: JONES CYNTHIA G
IPC: G03C1/498
Filed: 1978-08-30
Granted: 1982-01-26
Abstract: COVERING POWER PHOTOTHERMOGRAPHIC        MATERIAL AND PROCESS              Abstract of the Disclosure A covering power, heat developable photographic material comprising, in binder, and in reactive association (a) negative-working photosensitive silver halide, (b) an image-forming combination comprising (i) an organic silver salt oxidizing agent containing a heterocyclic thione ligand or 1,2,4-mercaptotriazole ligand with (ii) an organic reducing agent and (c) a nucleating concentration of a hydrazino thiourea nucleating agent, enables a positive image to be developed and, in most cases, stabilized even though the photothermographic material contains no separate post-processing image stabilizer.  The heat developable silver halide photographic material also enables development efficiency that is better than in those photothermographic silver halide materials not based on covering power imaging.          A positive image can be developed in the heat developable photographic material after imagewise exposure by merely heating the material to moderately elevated temperatures.          Other addenda employed in heat developable materials can be useful in the described heat developable photographic materials.
Patent CA-1098581-A (CA)
Title: Thermal print bar
Inventor: LIVERMORE FREDERICK C
IPC: B41J2/335
Filed: 1978-09-05
Granted: 1981-03-31
Abstract: Abstract of the Disclosure In a thermal print bar for use in facsimile systems, an array of individually selectable electrical current paths are defined in a strip of resistive materials having a high negative temperature coefficient of resistance .  In operation, the resistance of a selected current path is markedly reduced in contrast with the resistance of unselected current paths parallel to the selected path so that the parallel current paths do not experience joule heating.  Electrical power saving and visual contrast result.                             -i-
Patent CA-1126437-A (CA)
Inventor: ARHART RICHARD J
IPC: F01N3/08
Filed: 1978-10-30
Granted: 1982-06-22
Abstract: ABSTRACT OF THE DISCLOSURE         Copolymers of vinylidene fluoride with at least one other fluorinated, ethylenically unsaturated monomer are press-cured at about 163-204°C by crosslinking with an aromatic polyhydroxy compound in the presence of an acceler-ator in a weakly basic system, At least a portion of the polyhydroxy compound being blocked by conversion to acetal or thioacetal groups.  At the press-cure temperature some of the acetal or thioacetal groups are decomposed and the free hydroxyl groups are reformed, thus providing crosslinking capability.  The remainder of acetal or thioacetal groups are decomposed during post-cure oven heating at a higher tempera-ture, and under those conditions copolymer vulcanization is completed.  Press-cured compositions of this invention have excellent hot tensile elongation, which permits easy demold-ability; and very good recyclability, which eliminates or reduces fluoropolymer waste.  The compositions of this inven-tion also have excellent mold flow properties at press-cure temperature.
Patent CA-1097627-A (CA)
Inventor: HASHIMOTO NAOTO
IPC: C07D498/04
Filed: 1978-11-10
Granted: 1981-03-17
Abstract: Method for the Production of Maytansinoids ABSTRACT OF THE DISCLOSURE       Maytansinoid compounds are produced by contacting in the presence of a carbodiimide the compound maytansinol   with an acid of the formula:                                  (II) wherein R is lower alkyl, to yield the desired maytansinoids having the resultant formula:              (I) wherein R  is lower alkyl. The maytansinoids (I) are both antifungal agents and also antitumor agents.  The D-form (with respect to asymmetry at the 2'-position) of the maytansinoids (I) represents a new class of compounds having antifungal and antitumor properties.
Patent CA-1090630-A (CA)
Inventor: CORMIER MAURICE
IPC: B41M5/36
Filed: 1978-11-27
Granted: 1980-12-02
Abstract: Abstract of the Disclosure The invention disclosed relates to an improved recording media for use in recording holograms in the IR region at wavelengths of about 10.6 µm i.e. the wavelength of a CO2 laser.  The improved recording medium is a trans-parent plastic medium having high light absorption at that wavelength, selected from the group consisting of polyvinylidene chloride resins and acrylic resins.
Patent CA-1109972-A (CA)
Inventor: CANNON THOMAS B
IPC: H04Q11/04
Filed: 1978-12-22
Granted: 1981-09-29
Abstract: Abstract of The Invention In a time assignment speech interpolation system, a fixed delay between the input speech channel and the transmission facility provides time to generate and transmit a symbol representing the speech channel to which the transmission facility has been assigned.  At the remote location, a fixed delay between the transmission facility and the output speech channel provides time in which to detect the symbol and perform the necessary switching.
Patent CA-1092947-A (CA)
Inventor: YOSHIDA HIROSHI
IPC: A44B19/40
Filed: 1978-12-28
Granted: 1981-01-06
Abstract: ABSTRACT OF THE DISCLOSURE A woven stringer tape for a slide fastener has a row of interconnected coupling loops mounted on an edge of the tape by a plurality of binding warp threads extending longitudinally over an upper leg of each of the successive loops and a binding weft thread interlaced with the binding warp threads.  Selected foundation warp threads underlying a lower leg of the loop are passed upwardly toward the upper legs between each adjacent pair of loops and inter-laced with the binding weft thread in substantially the same plane where the binding warp threads are interlaced with the binding weft thread.
Patent CA-1111524-A (CA)
Inventor: JAYNE MAX L
IPC: H01R12/88
Filed: 1979-01-05
Granted: 1981-10-27
Abstract: CIRCUIT BOARD CONNECTOR                   ABSTRACT OF THE DISCLOSURE    A low insertion force connector for making electrical contact between a circuit board and an external circuit is provided.  The connector includes a housing having longitu-dinal side walls forming a zone for receiving the circuit board.  A plurality of contacts mounted within the zone have upper portions for contacting opposite sides of the circuit board.  Lower portions of the contacts are mounted in the housing.  A camming means is journaled for rotation about an axis substantially normal to the side walls and includes cam-ming surfaces engageable therewith so as to move the side walls apart when the camming means is actuated.  The contacts are operably associated with the respective sides of the housing so as to apply a negligible insertion force on a circuit board when the camming means is actuated.
Patent CA-1163748-A (CA)
Title: Cross-linked polyurethanes
Inventor: FRISCH KURT C
IPC: C08G18/78
Filed: 1979-03-06
Granted: 1984-03-13
Abstract: ABSTRACT OF THE DISCLOSURE           Cross-linked polyurethanes such as solid elastomeric polyurethanes or microcellular polyurethanes are prepared by reacting a polyisocyanate, one or more polyols and at least one trihydroxy compound in the presence of a catalyst using, as the hydroxyl compounds a low molecular weight diol, optionally a polymeric polyol and tris-(.beta.-hydroxypropyl)-isocyanurate or ethoxylated tris-(.beta.-hydroxypropyl)-isocyanurate all present in specific ranges of proportions. Use of the specific isocyanurates provides for better utilization and smaller quantities of the blowing agent used to make microcellular polyurethane foams.
Patent CA-1131395-A (CA)
Inventor: DUEBER THOMAS E
IPC: C08F2/00
Filed: 1979-05-04
Granted: 1982-09-07
Abstract: Abstract Photopolymerizable compositions comprising a photopolymerizable monomer, an initiator, e.g., hexa-arylbiimidazole and a sensitizing amount of a selected compound derived from aryl ketones and p-dialkylamino-arylaldehydes.  The photopolymerizable compositions which optionally contain inert components such as organic polymeric binders, solvents, etc. are photoactivated in the visible region of the spectrum.  The photopolymeriz-able compositions are useful in lithographic and letter press printing plates, engineering drafting films, litho-graphic films, photoresists and solder masks.
Patent CA-1077008-A (CA)
Inventor: HELFAND LEON
IPC: B65H81/08
Filed: 1979-06-05
Granted: 1980-05-06
Abstract: ABSTRACT OF THE DISCLOSURE          A machine for winding a supply package of tape material to be helically wrapped about the length of an elongated struc-ture the machine having means for supporting the package in rotation as it is being traverse wound and means spaced apart from the supporting means for the package for guiding the tape when being advanced from a supply of tape to a package being wound, and means for reciprocating the guiding means in a direc-tion extending substantially parallel to the axis of rotation of the package supporting means to cause the tape to be traverse wound upon the package, the improvement comprising tape guiding means having a plurality of passages each of which is adapted to receive a different one of a plurality of tapes to be traverse wound in one of the predetermined conditions, the passages in the guiding means extending substantially parallel to one another and being positioned with respect to one another in correspond-ence to a selected one of the predetermined conditions, the passages of the guiding means enabling the plurality of tapes to be delivered to the package in accordance with a selected one of the predetermined conditions to be traverse wound to form the package.
Patent CA-1152094-A (CA)
Inventor: FAROOQ SALEEM
IPC: C07C41/30
Filed: 1979-06-25
Granted: 1983-08-16
Abstract: Abstract Cyclopropanecarboxylic acid esters of the formula   in which X1    is fluorine, chlorine or bromine, and Y     is methoxy, methyl, fluorine, chlorine or bromine; processes for producing them, and their use in combating pests.
Patent CA-1093327-A (CA)
Inventor: FALK DONALD G
IPC: F25C1/06
Filed: 1979-06-29
Granted: 1981-01-13
Abstract: HOUSEHOLD REFRIGERATOR WITH THROUGH-THE-DOOR ICE SERVICE                          ABSTRACT OF THE DISCLOSURE    A refrigerator having a freezer compartment with a primary door and an automatic motor-driven ice dispenser within the freezing compartment.  The ice dispenser includes an ice mold, an ice ejecting arrangement, a receptacle for receiving ice pieces from the mold, and a rotatable dispensing means positioned within the receptacle for moving the ice pieces through the receptacle and discharging the ice pieces from an opening in the receptacle.  There is provided a passage through the primary door for receiving the ice pieces from the recep-tacle outlet when the primary door is closed.  A recess is in communi-cation with the passage and has an opening in the exterior surface of the primary door.  The recess has a secondary door hingedly secured to the primary door that seals the opening on the exterior surface of the primary door.  An arrangement for actuating the dispenser coop-erates with the secondary door to energize that dispenser during the opening of the secondary door whereupon ice pieces are delivered through the receptacle outlet, the primary door passage, and into the recess.
Patent CA-1128892-A (CA)
Title: Can body conveyor with anti-rotation mechanism
Inventor: SILLARS FREDERICK S
IPC: B65G17/18
Filed: 1979-07-03
Granted: 1982-08-03
Abstract: Abstract of the Disclosure A drive chain cooperative with a guide for successively advancing can bodies (or the like) coaxially is pivotally fitted with longitudinally spaced driving lugs adapted to grip the respective trailing ends of the bodies and thus prevent their unwanted shifting about their longitudinal axes. Each lug, in addition to its projection for gripping the trailing end, has a flat portion, slidably engageable with the guide to insure non-deviation of side seam body joints from alignment with a solder applicator. A sprocket beyond the guide and the applicator, and with which the chain is in mesh, has circumferentially spaced protrusions which pivotally actuate the lugs to release the can bodies for further processing.
Patent CA-1127339-A (CA)
Inventor: PIESTERT GERHARD
IPC: C09J4/06
Filed: 1979-10-15
Granted: 1982-07-06
Abstract: ABSTRACT OF THE DISCLOSURE     An adhesive composition formed by combining two parts capable of causing polymerization to form adhesive bonds rapidly. One part comprises polymerizable vinyl monomer, selected chloro-sulphonated polyethylenes or mixtures of sulphonyl chlorides and chlorinated polyethylenes, compatible monomeric material having three or more ethylenically unsaturated double bonds. The other part comprises an activator.
Patent CA-1130199-A (CA)
Inventor: MARTIN BRIAN
IPC: E21B43/28
Filed: 1979-10-19
Granted: 1982-08-24
Abstract: ABSTRACT In Situ Leaching The present invention relates to in-situ leaching or uranium, particularly employing an acidic leach liquor containing an oxidant, and especially in respect of ores containing significant amounts of transition metals that act as catalysts for peroxidant decomposition  When hydrogen peroxide is used as oxidant under such conditions it decomposes leading to the formation of gas bubbles and exacerbation of ore-blinding, and a reduction in the efficiency of extraction of uranium.     The present invention employs peroxymonosulphuric acid as oxidant and thereby ameliorates the problems aforesaid. Preferably, additionally, sulphuric acid is present  in the leach liquor and in many preferred embodiments the peroxymonosulphuric acid concentration is from 0.001 to 0.03 moles/litre and the sulphuric acid from 0.025 to 0.075 moles/litre.