baber/WOPTO huggingface dataset:
Patent CA-1185655-A (CA)
Inventor: WILLIAMS JAMES B
IPC: G05F1/38
Filed: 1982-02-26
Granted: 1985-04-16
Abstract: ABSTRACT OF THE DISCLOSURE A circuit for regulation of a D.C. output voltage in a switching power supply.  The circuit contains a control transformer having primary, secondary and control windings.  The output of the circuit is connected from the primary and secondary windings and is controlled by a switching element connected from the control winding.  The circuit output error is provided to duty cycle modulation circuitry which varies the duty cycle of the switching element, thereby controlling the output voltage level.
Patent CA-1177213-A (CA)
Inventor: GELLERT JOBST U
IPC: B29C45/28
Filed: 1982-03-19
Granted: 1984-11-06
Abstract: ABSTRACT OF THE DISCLOSURE           This invention relates to a hydraulically actuated valve gated injection molding system.  The valve pin actuating mechanism has a piston which engages the driven end of the valve pin and reciprocates in a cylinder in alignment with the valve pin.  The cylinder is bolted directly to the back plate and has a mouth which is also in alignment with the valve pin and is sealed by a separately removable cap.  In order to compensate for accumulations of tolerances and have the valve pin seat accurately to avoid drooling or breakage of the seat, it is desirable to accurately measure the necessary length of valve pin after the remainder of the system has been assembled.  The mouth of the cylinder is larger in diameter than the piston to allow these measurements to be taken, the proper length valve pin to be attached to the piston outside the cylinder, and the assembly to then be inserted through the mouth.  This structure provides for accurate measurement of the necessary length of valve pin after assembly of the rest of the system, as well as for convenient installation of the valve pin without disassembling the system.
Patent CA-1179117-A (CA)
Inventor: ARRHENIUS GUSTAF O
IPC: A61F7/08
Filed: 1982-03-31
Granted: 1984-12-11
Abstract: HEAT STORAGE MATERIAL                 Abstract of the Disclosure A liquid melt becomes converted to crystalline form at a particular temperature either spontaneously or when artificially nucleated.  The liquid releases heat at crystal-lization.  An additive is dissolved in the liquid melt.  The additive has properties of forming a metastable solid solu-tion together with the warm crystalline compound formed from the melt.  When the additive exsolves, the crystalline aggre-gate is weakened and is easily decomposed into fragments of small size.  The additive materials may include disodium hydrogen phosphate, dipotassium hydrogen phosphate, or their ammonium or sodium analogs.  The additive may be dissolved in small amounts in the liquid to be crystallized, amounts to two percent (2%) to four percent (4%) being typical.  The amount relative metastability of the additive in the solid solution contributes to control the size and intergrowth of the crystals which are ultimately produced when the cooling or supercooled fluid crystallizes.  The relative amounts of disodium hydrogen phosphate (DSHP) and trisodium phosphate (TSP), or their potassium or aluminium analogs, in the melt controls the pH of the melt.  When the liquid constitutes molten sodium thiosulpate pentahydrate (STP), the additive in the mixture is preferably in the form of its highest hydrates to insure that a sufficient amount of water is present in the melt to prevent the liquid melt of STP from crystallizing in an undersirable lower hydrate form.                    ************
Patent CA-1202850-A (CA)
Title: Internal combustion engine and cam drive mechanism  therefor
Inventor: MA THOMAS T
IPC: F01L1/348
Filed: 1982-03-31
Granted: 1986-04-08
Abstract: ABSTRACT    "Internal combustion engine and cam drive mechanism therefor".          An  internal  combustion  engine  has  n  member  of cylinders,  a  piston  in  each  cylinder  connected  to  a crankshaft (2), each piston being in phase or out of phase with the others by A° or a multiple thereof  (A = 720/n), cams  for  actuating  inlet  and  exhaust  valves  to  each cylinder, and a cam drive mechanism (5) which rotates the cams in phased relationship with the crankshaft (2) to open the valves in sequence for a desired angle of rotation of the  crankshaft.   The  cam  drive  mechanism  also  includes means  for combining the  rotational movement of the cams with a phased oscillatory movement of the camshaft (3) and cams of variable amplitude about the axis of rotation at a frequency f times the crankshaft frequency so that over the period which the valves are opened  and/or their  timings variable, f has the following values:       f = 2n when the number of cylinders n = 1; f = n or ? when n = 2; and f = ? when n = 3 or more.       The selection of the frequency of the oscillations allows all the cams to be mounted on the same camshaft.
Patent CA-1177917-A (CA)
Inventor: JOHANSSON ALF
IPC: F16B2/14
Filed: 1982-03-31
Granted: 1984-11-13
Abstract: ABSTRACT OF THE DISCLOSURE      A wedging device comprises at least two bodies which are movable in relation to each other, namely a first body having two diverging surfaces and a second body which is displaceable relative to the first body along one of its diverging surfaces. A heat-shrinkable casing, made for example from a tape, sheet or film of polymeric material, is arranged around the movable bodies of the device. When the device is heated, the casing shrinks, causing relative displacement between the first and second bodies and a consequent change in the outer dimensions of the device.
Patent CA-1219098-A (CA)
Inventor: BREITENFELLNER FRANZ
IPC: C08L67/00
Filed: 1982-05-21
Granted: 1987-03-10
Abstract: Thermoplastic polyester moulding composition and use thereof Abstract The invention relates to moulding compostions based on thermoplastic polyesters and containing finely particulate calcined magnesium sulfate. The moulded articles obtained with these compositions have increased stiffness and tracking resistance, this latter also in the presence of flame retardants and/or a reinforcing filler.
Patent CA-1172648-A (CA)
Inventor: DIEFENBACH STEVEN P
IPC: B01J27/00
Filed: 1982-06-25
Granted: 1984-08-14
Abstract: Abstract of the Disclosure A method of making trimethylaluminum wherein an aluminum trialkyl having at least two carbon atoms in the alkyl group is reacted with a methyl halide in the presence of a bismuth catalyst to form trimethyl-aluminum and an alkyl halide.  A hydrocarbon solvent provides increased reaction rates.
Patent CA-1174950-A (CA)
Title: Method and composition for urobilinogen control standard
Inventor: RAPKIN MYRON C
IPC: G01N33/96
Filed: 1982-07-05
Granted: 1984-09-25
Abstract: ABSTRACT OF THE DISCLOSURE A urobilinogen control standard composition, control standard device and a method for preparing such composition are disclosed. The composition comprises a substituted indole:nonionic detergent solution which is reactive with p-diethylamino-benzaldehyde and hydrochloric acid. The composition is produced by dissolving the substituted indole in a selected nonionic detergent and diluting the solu-tion to a predetermined level. The device is a carrier matrix impregnated with a solution of a substituted indole and a nonionic detergent. MS-1187
Patent CA-1224895-A (CA)
Inventor: GIBSON DAVID V
IPC: C08F2/24
Filed: 1982-07-05
Granted: 1987-07-28
Abstract: ABSTRACT           Aqueous polymer dispersions useful in coating compositions comprise cationically, anionically or non-ionically stabilised particles in which the particles comprise (a) polymeric modifier as defined,  (b) addition polymer, and (c) crosslinking agent, both (a) and (b) containing reactive groups and (c) containing complementary reactive groups.  Preferably the dispersions are prepared by polymerising a solution of (a) and (c) in the monomer precursor of (b).
Patent CA-1213255-A (CA)
Inventor: VAN VLIET CORS
IPC: F24F3/147
Filed: 1982-07-16
Granted: 1986-10-28
Abstract: Abstract:    An air heating and ventilation system in particularly suitable for well-insulated and draught-proof dwellings or buildings comprises a supply duct for fresh external air, being connected to a main fan, a combustion chamber with an exhaust duct for the flue gases, an air heater disposed in said combustion chamber, a main distribution duct, feed ducts with controllable terminals for the rooms, and a dirty air discharge duct provided with a fan, a heat exchanger disposed between the supply duct for the outside air and the exhaust duct for the flue gases.    The dirty air discharge duct is connected to the combustion chamber, the dirty air at least partly acting as air or the combustion and the remaining part is then discharged together with the flue gases via the heat exchanger, the latter being adapted for transmitting the resulting condensate to the incoming external air.
Patent CA-1215850-A (CA)
Inventor: BOSLEY JOHN A
IPC: C05G3/80
Filed: 1982-08-06
Granted: 1986-12-30
Abstract: Abstract Superabsorbent gel compositions useful as plant growing media additives are prepared in particulate form by comminuting a partially-hydrated (10-80% moisture) gel mass in the presence of a finely divided flow aid, such as kaolin.  The partially-hydrated granules are more easily mixed with damp compost or other growing media, and lead to improved soil properties, especially aeration, because the process gives rise to fewer fines which would otherwise tend to glue soil particles together.  Preferred gels in foam form and based on polyacrylamide/acrylate are described.
Patent CA-1189483-A (CA)
Inventor: MCAVINN JAMES D
IPC: A61B19/00
Filed: 1982-08-17
Granted: 1985-06-25
Abstract: DEVICE FOR SUPPORTING SPONGE COLLECTION BAGS     ABSTRACT OF THE DISCLOSURE     A device for supporting sponge collection bags from a pole comprising, a basket having opposed front and back sides, a pair of opposed ends connecting the sides, a bottom, and an open top.  The sides, ends and bottom define a cavity to receive a box of sponge collection bags through the open top.  The basket has a pair of spaced hooks depending from the front side and being directed away from the front side, and a pair of spaced hooks depending from the back side and being directed away from the back side, with the hooks being adapted to be received in spaced apertures of the sponge collection bags.  The device has a support member for supporting the basket on the pole.
Patent CA-1193778-A (CA)
Inventor: NACHTKAMP KLAUS
IPC: C08L75/00
Filed: 1982-09-01
Granted: 1985-09-17
Abstract: ABSTRACT OF THE DISCLOSURE This invention relates to a new process for the preparation of storage stable aqueous dispersions or solutions of cross-linkable polyurethane polyureas containing heat activated cross-linking agents, in which mixtures of hydrophilically modified prepolymers containing isocyanate groups, hydrophobic polyisocya-nates which contain blocked isocyanate groups and are neither soluble nor dispersible in water, and compounds containing at the most one free aminic or hydrazinic primary or secondary amino group and at least one blocked group which under the influence of water forms a free aminic or hydrazinic primary or secondary amino group and a total of at least two such amino groups are prepared in the absence of water and then mixed with water, and it also relates to the aqueous dispersions or solutions obtained by this process and to their use for the production of coatings on heat-resistant substrates.
Patent CA-1182363-A (CA)
Inventor: ROTILI REMO
IPC: F24B1/183
Filed: 1982-11-03
Granted: 1985-02-12
Abstract: ABSTRACT OF THE DISCLOSURE     A high efficiency fireplace with effective heat recovery capability for heating purposes and for heat storage.  A fireplace boiler made of interconnected heat exchanger elements using sheet metal stamping technology, preferably corrugated metal stamped panels defining a plurality of water flow paths for circulating heat exchanging water.  A wood burning domestic heating system using such an improved fireplace is also disclosed with suitable temperature control means and thermal energy storage systems.
Patent CA-1195650-A (CA)
Inventor: MCINTYRE JAMES A
IPC: H01M8/00
Filed: 1982-11-26
Granted: 1985-10-22
Abstract: Abstract of the Invention An improved aqueous electrolyte solution adapted to minimize the decomposition of peroxide formed during electrolysis comprising an alkali metal compound, an impurity catalytically active for the decomposition of peroxides and a stabilizing agent at a concentration sufficient to render at least a portion of the catalytically active materials inactive.           The invention also includes a process for the production of peroxides which comprises electrolyzing the solution described above.
Patent CA-1185741-A (CA)
Inventor: KAMATANI YOSHIO
IPC: C09J175/00
Filed: 1982-11-29
Granted: 1985-04-16
Abstract: ABSTRACT         Disclosed is a composition for polyurethane resins which is ordinarily of two-package type and curable at ambient temperature and which comprises an isocyanate component having oxadiazinetrione ring as a curing agent and a polyol component having, in the molecule, at least one of a tertiary amino group, a quaternary ammonium group and a salt formed carboxyl group as a main component.  The composition has excellent curability and provides cured products excellent in adhesiveness and physical properties.
Patent CA-1197926-A (CA)
Inventor: RYDEN WILLIAM D
IPC: H01L29/08
Filed: 1982-11-30
Granted: 1985-12-10
Abstract: ZERO DRAIN OVERLAP AND SELF-ALIGNED CONTACTS AND CONTACT       METHODS FOR MOS DEVICES                   ABSTRACT OF THE DISCLOSURE     Fabrication techniques are described for the construction of MOS transistors to provide source/drain regions which are self-aligned and non-overlapping with respect to their gate electrode.  The non-overlapping feature, along with other optimized device characteristics, are generally provided by defining a gate electrode over a substrate, forming an implant mask of dielectric, for example, on the sides of the gate electrode, and implant-ing a source/drain region such that the implant mask shields a portion of the substrate from implantation to provide a gap between a side edge of the gate electrode and the implanted regions.  The source/drain region is then heat driven until its side edge is substantially aligned with the edge of the gate electrode.  Self-aligned source/drain contacts are also provided using the implant mask to isolate the gate electrode from the contacts and inter-connects.
Patent CA-1191333-A (CA)
Inventor: SNAVELY EARL S JR
IPC: C01B17/05
Filed: 1982-12-30
Granted: 1985-08-06
Abstract: PROCESS FOR THE SELECTIVE REMOVAL OF HYDROGEN SULFIDE FROM GASEOUS STREAM            Abstract:          In a process for the selective removal of hydrogen sulfide from a gaseous stream additionally containing carbon dioxide, the gaseous stream is contacted with a polyvalent metal chelate solution for a time sufficient to allow the polyvalent metal chelate to oxidize the hydrogen sulfide to elemental sulfur without allowing the polyvalent metal chelate solution to absorb appreciable amounts of carbon dioxide.  The pH of the metal chelate solution should be greater than 7 and the contact time between the polyvalent metal chelate and the gaseous stream is between 0.006 and 0.08 second.
Patent CA-1186617-A (CA)
Inventor: JANI WILLIAM - - STREET N E CA
IPC: E21B33/16
Filed: 1983-01-18
Granted: 1985-05-07
Abstract: A B S T R A C T   A cement staging apparatus for wells end including well casing, comprising an open ended hollow body having a number of spaced ports therethrough; a first hollow member slideably associated with said body and having a first ports closed position and a second ports open position; first pressure means associated with said first member for displacing said first member and opening said ports thereby; a second hollow member slide-ably associated with said body and having a first ports open position and a second ports closed position and including shifting pressure relieving means associated with said body; second pressure means associated with said second member for displacing said second member and closing said ports thereby; said second member spaced a distance from said first member said body, said first member and said first pressure means defining a canister having an open end for receipt of a supply of pressurized cement and adapted for distributing said cement through said ports; and said body, said first and said second pressure means and said second member defining a closed canister for preventing the distribution of an additional supply of cement whereby closing of said canister by said second pressure means causes said pressure relieving means to shift thereby and relieve said canister pressure.
Patent CA-1196978-A (CA)
Inventor: PALERMO DAVID W
IPC: H04L5/14
Filed: 1983-03-18
Granted: 1985-11-19
Abstract: Abstract of the Invention An asynchronous interface is presented which enables the transfer of information between a set of devices having a wide range of operating speed.  Each device can enter a Controller active state in which it sources command frames to control the loop operation.  Each device can also enter a Talker active state in which it sources Data frames on a Listener active state in which it received Data frames.  The transfer of frames is coordinated by a set of handshakes which enable the frames to be transferred in an asynchronous manner.
Patent CA-1201983-A (CA)
Inventor: NORTH WILLIAM E
IPC: F01D5/18
Filed: 1983-03-24
Granted: 1986-03-18
Abstract: ABSTRACT OF THE DISCLOSURE .        A hollow stator vane for a turbine is provided with separate forward and aft inserts 26 and 32 with the forward insert providing impingement cooling of the vane walls while the aft insert is closely fitted into the vane internal cavity to provide closely defined channel widths between the insert and facing walls of the vane, the aft insert also including means functioning during operation to ensure the maintenance of the closely defined channel widths, the coolant air admitted to the inserts functioning first for impingement cooling, then channel flow cooling along the aft insert, and then channel flow cooling of the trailing edge 18 through an exit slot.
Patent CA-1199381-A (CA)
Title: Cable a fibres organiques de marque kevlar pour  support de cables aeriens
Inventor: LARIVIERE GERARD
IPC: H02G7/06
Filed: 1983-03-25
Granted: 1986-01-14
Abstract: ABREGE DESCRIPTIF           Système  de  ligne  de  transmission  aérienne comprenant  un  ensemble  de  support  à  câble  supportant un  ou  des  câbles  de  transmission  aérienne entre deux éléments  de  support  verticaux et espacés.   L'ensemble comprend  en combinaison  un  fil  porteur  non-métallique et  non-conducteur  électrique  et  un  fil  à  ligaturer.          Le fil à ligaturer est enroulé autour d'un ou plusieurs câbles de transmission et du fil à ligaturer pour fixer les câbles au fil porteur.   Le fil porteur et le fil à ligaturer comportent un noyau interne formé de fibres synthétiques à haute résistance, à base d'homopolyamide ou de copolyamide aromatique.  Une enveloppe protectrice externe entoure le noyau interne pour protéger ce dernier contre  les  rayons  ultra-violets et procurer aussi une protection mécanique.   Le  fil  porteur  est fixé entre des éléments de support verticaux et ce dernier ainsi que le fil à ligaturer sont libres de mise à la terre.
Patent CA-1186674-A (CA)
Title: Process for preparing an oxidation catalyst  composition
Inventor: OTAKE MASAYUKI
IPC: B01J27/198
Filed: 1983-03-30
Granted: 1985-05-07
Abstract: ABSTRACT:       A process for preparing an oxidation catalyst composition comprises mixing at least one crystalline composite oxide, as the first component, selected from the group consisting of (i) a crystalline composite oxide containing vanadium and phosphorus and showing the characteristic X-ray diffraction peaks as identified in the following Table A and (ii) a crystalline composite oxide containing vanadium and phosphorus and showing the characteristic X-ray diffraction peaks as identified in the following Table B, an aqueous solution , as the second component, containing vanadium and phosphorus, and silica sol, as the third component, to form an aqueous slurry, spray-drying the slurry, and calcining the solid particles thereby obtained:
Patent CA-1203386-A (CA)
Title: Procede d'extraction du gallium a l'aide  d'hydroxyquinoleines substituees et de composes  organiques comportant un groupement sulfate ou  sulfonate
Inventor: BAUER DENISE
IPC: B01D11/04
Filed: 1983-08-25
Granted: 1986-04-22
Abstract: La présente invention concerne un procédé d'extraction liquide/liquide du gallium contenu dans des solutions aqueuses basiques a l'aide d'hydroxyquinoléines substituées et de composés organiques comportant un groupement sulfate ou sulfonate ayant une fonction acide libre ou sous fiée. Les solutions aqueuses basiques traitées sont notamment des lessives d'aluminate de sodium du procédé BAYER de fabrication de l'alumine.
Patent CA-1212082-A (CA)
Inventor: GRANT DAVID
IPC: B65F1/00
Filed: 1983-09-12
Granted: 1986-09-30
Abstract: ABSTRACT       A side emptying container includes a loader bucket (1) having a semi-elliptical profile, and a discharge plate (2) constituting a side wall ofthe container The discharge plate (2) can be moved across the bucket by a ram driven chain mechanism including a chain (5) anchored at its opposite ends to spaced locations (11) and (12).  The plate (2) is secured to a centre portion of the chain (5) which passes round two rollers (9) and (10) mounted on a slidable plate (13) actuated by a hydraulic ram system (3).  The bucket (1) is filled with the plate (2) at one side of the bucket.  To empty the bucket (1), the ram system (3) moves the plate (13) causing the discharge plate (2) to move across the bucket (1) thereby discharging the contents.  The ram driven-chain mechanism is located within the width and outer rear profile of the container.
Patent CA-1209951-A (CA)
Inventor: WINYALL MILTON E
IPC: C01B33/18
Filed: 1983-10-17
Granted: 1986-08-19
Abstract: Abstract Finely divided particulate silica is prepared by the electrodialysis of sodium silicate solution in the presence of silica-containing nucleation particles (seeds).  The novel particulate silica product, herein referred to as dialytic silica, may be used in the preparation of catalysts, sorbents, abrasives, fillers and thickeners.
Patent CA-1210045-A (CA)
Inventor: WILKINSON RICHARD A JR
IPC: H02K15/16
Filed: 1983-10-27
Granted: 1986-08-19
Abstract: ABSTRACT OF THE DISCLOSURE     A brushless direct current motor with the rotating magnet cup permanently attached  to  the  spindle  hub.   After  attachment,  the combination spindle hub and magnet cup are affixed to the shaft and the resulting subassembly is dynamically balanced.  The motor using this  balanced  subassembly  can  be  assembled  with  no  balancing required after assembly.  The motor can also be disassembled for repair and reassembled without disturbing the dynamic balance  The motor is especially useful for disk drive applications.
Patent CA-1241821-A (CA)
Inventor: WOOG MANFRED J
IPC: C22B3/46
Filed: 1983-11-08
Granted: 1988-09-13
Abstract: ABSTRACT     A reusable cartridge for extracting precious metal from solutions containing such metal by means of a replacement reaction is disclosed.  A dispersion means distributes incoming solution uniformly through a cylindrical housing having a spiral rolled exchange mass therein.  The mass contains fine particles of replacement metal of higher electromotive force than the metal to be recovered.  Spacer rings are provided to secure the spiral mass in position, to aid in directing the flow of solutions uniformly through the exchange mass and to prevent overly large flow paths from developing between spiral layers.          A removable outlet end cap allows access to the interior of the cartridge for removal and replacement of the exchange mass thereby making the cartridge readily reusable.