baber/WOPTO huggingface dataset:
Patent CA-1108947-A (CA)
Inventor: CAPLIN PETER B
IPC: F22B7/14
Filed: 1978-08-17
Granted: 1981-09-15
Abstract: ABSTRACT OF THE DISCLOSURE        The specification describes a boiler arrangement including a firebox in which combustion of fuel fed thereto is initiated, a flame tube leading from the firebox in which combustion of fuel may continue and an array of smoke tubes through which the products of combustion issuing from the flame tube are fed to a chimney, the surfaces of the firebox, flame tube and smoke tubes being surrounded by a chamber containing a heat transfer medium, preferably water. The arrangement may include a superheater in which steam generated in the chamber is superheated, the superheater is preferably located at an end of the flame tube. The specification envi-sages that the boiler may be used as a power source for a rail locomotive.
Patent CA-1109600-A (CA)
Inventor: RUDNER BERNARD
IPC: C08J9/02
Filed: 1978-10-11
Granted: 1981-09-22
Abstract: ABSTRACT OF THE DISCLOSURE         Flexible polyurethane foam having reduced tendency to form burning embers when it is ignited and burned is provided by incorporating into the reaction mixture before foaming a derivative of melamine wherein one or more hydrogens have been replaced by hydroxymethyl and/or lower alkoxymethyl groups.         In one embodiment, flexible polyurethane foams of increased flame retardance are also provided, by also incorporating a halogenated phosphorus ester into the reaction mixture before foaming.
Patent CA-1117766-A (CA)
Inventor: JARDIM PAIXAO JOSE MARCIO
IPC: C22B1/00
Filed: 1978-10-20
Granted: 1982-02-09
Abstract: ABSTRACT OF THE DISCLOSURE:         Invention Patent of "PROCESS FOR BENEFICIATION          OF TITANIUM ORES" which basically consists of the removal of impurities contained in titanium ores, in which such impurities appear as oxides and cannot be eliminated by conventional mechanical processes for ore concentration.  The process includes scrubbing, desliming; electromagnetic separation of the thick fraction for the removal of magnetite and decrease of the iron content, grinding of the non-magnetic fraction and its flotation for removal of part of the phosphates, calcining and reduction of the concentrate and both magnetic and electro-static separation.  The latter is carried out in stages which eliminate the impurities and make it possible to obtain a pre-concentrate, which undergoes another electrostatic separa-tion in order to obtain a final concentrate with a high TiO2 content and a middling concentrate which is recycled to the system.
Patent CA-1125697-A (CA)
Inventor: DEMPSEY RUSSELL M
IPC: C25B1/26
Filed: 1978-10-31
Granted: 1982-06-15
Abstract: ABSTRACT OF THE DISCLOSURE A halogen such as chlorine is produces by electrolysis of an aqueous solution of a hydrogen halide such as hydrochloric acid in an electrolysis cell having anolyte and catholyte chambers separated by a solid polymer electrolyte in the form of a stable, selectively permeable, hydrated ion-exchange membrane.  Catalytic anode and cathode electrodes in the form of fluorocarbon bonded, thermally stabilized, reduced oxides of platinum group metals are bonded to and embedded in opposite sides of the membrane.  An aqueous hydrochloric acid solution is brought into contact with the anode to generate chlorine at the anode and hydrogen at the cathode.
Patent CA-1122967-A (CA)
Inventor: HENNINGSSON THOM
IPC: F28D1/03
Filed: 1978-11-16
Granted: 1982-05-04
Abstract: A B S T R A C T   A hot water radiator primarily intended for heating dwellings and office premises, consisting of two main parts with a first main channel for supplying hot water, a second main channel for discharging cold water and a number of radiator channels, with the latter channels being formed by indentations in the main parts and separated by flat surfaces, these indentations being short relative to the main channels and also relative to the distance between the main channels, wherein the main parts with flat surfaces, indentations and main channels can be manufactured by stamping or rolling flat metal sheets, and can be put together by seam-and spot-welding, the radiator being intended for connection ? a central heating system supplying heated water and removing cold water.
Patent CA-1105158-A (CA)
Inventor: BLIND ROGER A
IPC: C02F1/42
Filed: 1978-12-08
Granted: 1981-07-14
Abstract: U.S. 860,690 ABSTRACT OF THE DISCLOSURE Silica can be removed effectively from a mixed bed demineralizer containing an anion exchange resin and a cation exchange resin during regeneration by (1) passing from about 30 to about 80 volume % of an anion regenerant solution through only the anion exchange resin, (2) passing the remaining portion of the anion regenerant solution through both the anion exchange resin and the cation exchange resin, and (2) passing a stream of cation regenerant solution through the cation exchange resin. The amount of silica on the resins is reduced by this treatment such that when silica-containing water is passed through the demineralizer during normal operations, the concentration of silica in the treated water as SiO2 will be less than 0.1, most preferably less than 0.005, milligrams per liter.
Patent CA-1140263-A (CA)
Title: Procede et dispositif de codage magnetique  modifiable en superposition d'un  code fixe
Inventor: JACOUB MICHEL
IPC: G06K19/08
Filed: 1979-01-09
Granted: 1983-01-25
Abstract: L'invention entre dans le domaine de l'enregistrement magnétique et concerne un procédé et dispositif pour réaliser un codage magnétique modifiable, en superposition d'un codage fixe réalisé par une suite de bâtonnets magnétisés séparés les uns des autres par un intervalle, caractérisés en ce que l'aimantation des bâtonnets est effectuée selon deux directions différentes par une tête d'écriture. Le dispositif comprend une tête magnétique de lecture et une tête magnétique d'écriture distantes l'une de l'autre, un registre à décalage qui reçoit l'image d'un code bâtonnet lu par la tête de lecture, le décalage du registre étant réalisé par un générateur d'horloge délivrant des impulsions synchronisées avec la cinématique de déplacement d'un support de code bâtonnets, ledit registre étant vidé, lors de l'écriture, par le même générateur d'horloge, la tête magnétique d'écriture portant un enroulement de lecture relié à un générateur de déclenchement d'écriture qui émet un signal autorisant le vidage du registre lorsque le premier bâtonnet passe sous la tête magnétique d'écriture. L'invention s'applique à la superposition des informations variables à un code fixe par bâtonnets.
Patent CA-1133044-A (CA)
Title: Photoplastic film recording and  monitoring apparatus
Inventor: LYSLE GORDON
IPC: G03B27/32
Filed: 1979-01-29
Granted: 1982-10-05
Abstract: ABSTRACT OF THE DISCLOSURE        A photoplastic film recording and monitoring apparatus has a rotatable mirror which in one position establishes a first optical path from a copy holding station through an objective lens to an image plane where a platen is provided for supporting a transmissively readable fiche of photoplastic film.  In a second position of the rotatable mirror a second optical path is established from a projection light source through the image plane and the objective lens onto a viewing screen.  In one embodiment a lens turret has a plurality of lenses of different focal lengths for providing different magnification ratios in order to photograph differ-ent size original copy.  System controls are provided for automatically reverting to that one of the lenses which affords full screen projection of the image from the fiche frame onto the viewing screen regardless of the reduction ratio chosen for photocopying.  Manual focusing adjustment is afforded only in the monitor mode and such adjustment is disengaged in the photocopying mode.  The hot block for developing images in the various frames of the fiche is arranged to function as a valve for developing a vacuum on the underside of the fiche when the hot block is applied thereto for snugging the fiche thereagainst.  An additional valving mechanism within the hot block provides rapid release of the vacuum when the hot block is retracted.  In a modifica-tion, a light sensing diode and light source are employed to detect deformation of the film within a fiche frame as evidence of prior image recording thereon.  A light shutter is provided for preventing fogging and blurring of an image during photocopying.
Patent CA-1105492-A (CA)
Inventor: GANE BRIAN R
IPC: B01J31/00
Filed: 1979-02-07
Granted: 1981-07-21
Abstract: Case No 4516 ABSTRACT            PROCESS FOR THE HYDROCARBONYLATION OF METHANOL TO ETHANOL IN THE   PRESENCE OF ADDED OXYGEN-CONTAINING ORGANIC COMPOUNDS      Ethanol is produced by reacting methanol with carbon monoxide and hydrogen at temperatures in the range 150 to 250°C and pressures greater than 100 bar in the presence of a cobalt catalyst and an additive which is miscible with methanol containing up to 20% w/w water, which additive is an alcohol, an aldehyde, a ketone or an ether.  Particular additives are n-propanol, n-butanol, acetone, acetaldehyde, 1,4-dioxane, tetrahydrofuran, di-n-propylether and diphenyl ether.  Optionally the catalyst is promoted with iodine or bromine or preferably both iodine or bromine and an organo-phosphorus compound.  Other additives such as non-polar solvents, acids and derivatives thereof and inert liquids can be incorporated in the reaction mixture.
Patent CA-1117710-A (CA)
Inventor: TSCHUDY DONALD B
IPC: A47L5/34
Filed: 1979-02-07
Granted: 1982-02-09
Abstract: Canadian Case 2155 ABSTRACT OF THE INVENTION         A floor care appliance is described having a nozzle body that has a floating action relative to the carriage.  Stop means carried by the nozzle body and the carriage interengage to limit movement of the nozzle toward the floor and disengage upon movement of the nozzle away from the floor.  An index means varies engagement of the stop means.
Patent CA-1113308-A (CA)
Inventor: FIO RITO WILLIAM M
IPC: C10B47/30
Filed: 1979-03-01
Granted: 1981-12-01
Abstract: Abstract of the Disclosure An improved method and apparatus for pyrolyzing waste materials and recovering useful chemical and energy rich materials therefrom.  The apparatus of the invention includes a specially designed, rotatable combustion chamber and embodies a highly novel means for withdrawing a portion of the combustion gases generated by the pyrolysis of the waste materials, mixing these gases with preheated air in carefully controlled proportions and then using the highly combustible gaseous mixture thus formed to sustain pyrolysis within the combustion chamber.
Patent CA-1093759-A (CA)
Title: Drain fitting for preformed or pre-assembled showers,  etc.
Inventor: IZZI LEWIS B
IPC: E03C1/26
Filed: 1979-03-16
Granted: 1981-01-20
Abstract: Abstract of the Disclosure A drain fitting for pre-formed or pre-assembled showers, etc. requiring drainage, having a flanged and internally threaded base connector for the reception of 3- or 4-inch solvent welded drain pipes and which is adapted to have a threaded or bolted connection with a depending strainer barrel having a peripheral flange for engagement with the shower, etc. receptor, the two units clamping a receptor membrane or washers on each edge surface of the recep-tor opening, and there being recessed channels or slots formed in the strainer barrel threads or clamping ring flange to drain off any leakage or seepage.
Patent CA-1122000-A (CA)
Inventor: WAHREN DOUGLAS
IPC: D21F3/02
Filed: 1979-03-27
Granted: 1982-04-20
Abstract: ABSTRACT OF THE DISCLOSURE     A moist, porous web is consolidated and dried by running it through the nip between two rotatable rolls, the surface of one of which is heated as it approaches the nip.  One side of the web is in direct contact with the surface of the heated roll and the other side faces a permeable surface.  The rolls are pressed together under high pressure to transfer heat from the heated roll to the web compressed therebetween to dry the same.  The roll sur-face may be heated by hot gases from a fuel combustion burner or by a liquid medium.  The dried and consolidated web may be removed from the heated roll by doctoring or it may be conveyed from the nip between the rolls to apparatus for processing it further.
Patent CA-1149992-A (CA)
Inventor: KROPLINSKI THADDEUS F
IPC: C08G18/12
Filed: 1979-03-28
Granted: 1983-07-12
Abstract: ABSTRACT           Novel thixotropic polyurethane compositions particularly useful as sealants for the edges of folded membrane separatory devices are provided which comprise:           (a) a prepolymer comprising the reaction product of a polyol having a hydroxyl functionality of at least 2 with one mole per hydroxy group of said polyol of an organic diisocyanate; and (b) a crosslinking agent comprising a polyether polyol having a hydroxyl functionality of at least 2 and a primary amine-terminated polyether having an amine functionality of at least 2.           To accelerate curing of the composition, the crosslinking agent can be modified by employing primary hydroxyl-terminated polyethern and/or adding hydroxyl-containing tertiary amines.
Patent CA-1125482-A (CA)
Title: Method and apparatus for securing a pipe  to a fitting
Inventor: METCALFE RONALD S
IPC: F16L47/00
Filed: 1979-03-30
Granted: 1982-06-15
Abstract: ABSTRACT       A method for connecting a plastics pipe to a fitting incorporating an externally grooved insert.  The insert, which is a tight fit in the pipe, is forced into the end of the pipe, and a sleeve, previously located on the pipe, is then forced to the end of the pipe so that the pipe end is tightly gripped between the insert and the sleeve.  The insert is tubular and is provided with a plurality of circumferential grooves in its outer surface.  Each groove has in axial section substantially straight sides and a straight base, the angle between the base and each side being obtuse.  Insertion of the insert causes the external diameter of the pipe to increase so as, to be greater than the internal diameter of the sleeve.
Patent CA-1121884-A (CA)
Inventor: MARCHAK ROMAN O
IPC: F02D21/08
Filed: 1979-04-26
Granted: 1982-04-13
Abstract: ALTITUDE COMPENSATION FEATURE FOR ELECTRONIC FUEL MANAGEMENT SYSTEMS               ABSTRACT OF THE DISCLOSURE         An electronic control unit for regulating the air/fuel  ratio  of  an  internal  combustion  engine  is disclosed.  The electronic control unit has an open loop calibration for  regulating  the air/fuel  ratio that is corrected with a closed loop correction signal developed by an integral controller.  The open loop calibration is a speed-density  based  schedule  which  is  combined  with corrections for  special conditions to account  for the operating  parameters  of  the  engine  at  any  instant. Included  in  these  special  condition  corrections  are provisions for an altitude compensation feature.   The altitude compensation feature includes circuitry to modify the intake manifold pressure portion of the speed density schedule with two variables which depend on altitude. Power enrichment for the pressure schedule is provided as a function of altitude by lowering a power enrichment break point for increases in altitude and enrichment for all values of intake pressure is provided as a function of altitude to compensate for the internal EGR of the engine and to provide increased utilization for the closed loop controller.
Patent CA-1118981-A (CA)
Inventor: MURPHY WESLEY T
IPC: F16B9/02
Filed: 1979-06-19
Granted: 1982-03-02
Abstract: Abstract of the Disclosure A structural frame in which vertically aligned metal-lic studs are secured to horizontal metallic runners or the like by means of clips to create a strong, easy to erect, partition.      Each clip includes two upraised legs that are connected at their upper ends by means of a sinusoidal shaped section.  The lower end of each leg contains an outwardly extended locking key.  In assembly, the sinusoidal section of the clip is received within a slotted hole formed in the stud with the bottom of the slotted hole being seated against one of the peaks of the sinusoidal wave-form section.  The clip is crimped to allow the keys to pass through a pair of receiving holes formed in the horizontal runner.          The crimping force on the clip is released whereupon the locking bars are driven beneath the holes to lock the clip in place and thus secure the two structural members in assembly.
Patent CA-1138982-A (CA)
Inventor: FAYFIELD ROBERT W
IPC: H05K5/00
Filed: 1979-07-09
Granted: 1983-01-04
Abstract: Abstract An industrial scanner including a plurality of discrete modules having sockets or pins arranged in  a pre-determined pattern, the pins of one module being long enough to pass through the sockets of another module and into the sockets of yet another module.
Patent CA-1149565-A (CA)
Inventor: RINGDAL LARS
IPC: B63C9/08
Filed: 1979-09-12
Granted: 1983-07-12
Abstract: ABSTRACT OF THE DISCLOSURE      The invention relates to a method of producing molded bod-ies of expanded plastic having a predetermined denaity, based on a starting material in granulate form to which a blowing agent and optionally a cross-linking agent have been added, said starting material being introduced into an injection mold-ing machine/press in which it is heated and injected/pressed into a mold.  In order to obtain an efficient production process without loss of raw material and a product whose density can be determined in advance, the material in the injection mold-ing machine/press is heated  to a temperature which is below the temperature required to initiate the reaction of the blow-ing agent/cross-linking agent, and the blank thus formed is subsequently transferred to an expansion mold having the shape of the desired final product, but larger than the blank.  The blank is caused to expand in the expansion mold and final ex-pansion takes place outside the expansion mold.  One is thus permitted to operate with a lower pressure than required pre-viously.
Patent CA-1110665-A (CA)
Inventor: ECONOMY JAMES
IPC: C07C1/00
Filed: 1979-09-25
Granted: 1981-10-13
Abstract: Abstract of the Disclosure Soluble, polymerizable oligomers having a number average molecular weight of from about 200 to about 10,000, are obtained by treating triethynylbenzene with an oxygen-carrying, amine-basic cupric salt complex catalyst in the presence of a molar excess over the monomer of an aromatic monoacetylenic capping agent.  The oligomers are used to form polymers which are adhesives and coatings.
Patent CA-1147031-A (CA)
Inventor: MASUDA YOSHIO
IPC: H01P7/04
Filed: 1979-11-08
Granted: 1983-05-24
Abstract: TITLE OF THE INVENTION         A High Frequency Filter ABSTRACT OF THE DISCLOSURE         A high frequency filter for frequencies from the VHF band to the low frequency microwave bands comprises a closed conductive housing, a pair of input and/or output means such as antennas provided at both the extreme ends of said housing, a plurality of resonators arranged on a straight line between said antennas, each of said resonators having an elongated inner conductor and a cylin-drical dielectric body surrounding said inner conductor, one end of each of said resonators being fixed on the single plane of the housing and the other end of each of said resonators being free standing, and the length between each of the resonators being defined according to a specified coupling coefficient for the desired characteristics of the filter.  The filter utilizes the coupling effect between resonators by the displacement current relating to surface TM mode and the conductive current relating to TEM mode. therefore, no coupling means for coupling between resonators is provided.
Patent CA-1123430-A (CA)
Inventor: DURANT MARCEL
IPC: C09B44/18
Filed: 1979-11-29
Granted: 1982-05-11
Abstract: L'invention a pour objet des solutions concentrées aqueuses acides du colorant de formule: dans laquelle A ? représente l'anion formiate, acétate ou propionate.  Ces solutions sont préparées à partir du chlorure ou sulfométhylate correspondant par formation du m- ou p-nitro-benzoate, dissolution de ce sel dans l'acide formique, acétique ou propionique et élimination de l'acide nitrobenzoïque précipité.  Les solutions selon l'invention sont utilisables pour la teinture et l'impression des fibres contenant des groupes acides, en particulier des fibres acryliques.
Patent CA-1118944-A (CA)
Inventor: PFLEGER KLAUS
IPC: C08F2/34
Filed: 1979-12-11
Granted: 1982-02-23
Abstract: O.Z. 0050/033573 Abstract of the disclosure:  A process for the continuous production of an ethylene copolymer by compressing a mixture of ethylene and comonomer in a pre-compressor and a post-compresso, copolymerizing the mixture in a poly-merization zone at a high temperature and high pressure, transferring the reaction mixture into a high pressure product isolation zone, from there into a low pressure product isolation zone and thereafter into a discharge extruder, and recycling the greater part of the unconver-ted monomer into the polymerization process and passing a small part of the unconverted gas into a low temperature isolation zone, in which process a small part of the gas recycled from the high pressure product isolation zone is passed into the low temperature isolation zone, which is pre-ferably under a pressure of from 10 to 30 bar and at from -10 to -50°C, and all the gas taken off  the low pressure product isolation zone is fed to the pre-compressor.          Using the novel process, the separating-off of the comono-mer which has remained unconverted in the polymerization process can be improved.
Patent CA-1136465-A (CA)
Inventor: MELLINGEN KNUT O
IPC: E01H4/02
Filed: 1980-02-05
Granted: 1982-11-30
Abstract: AN APPARATUS FOR PRODUCING SKI TRACKS FOR A SKI TRAIL.             Abstract of the Disclosure.            An apparatus for producing ski tracks for a ski trail, comprising a sliding/planing body with a flat sliding surface which curves upwardly at the forward section of said body, and spaced-apart track-forming members depending downwardly from said sliding surface.  The track-forming members each com-prising a bottom surface and two parallel side sur-faces whose forward portions converge to form a plow portion while the bottom surface extends forward in full width beneath said plow portion and at least to the tip of it.  A drag frame pivotally attached to the surface of the sliding/planing body rearward of its forward section. The axis of pivot for the frame running transversely of the direction of advancement for the sliding/planing body.  The trackforming mem-bers  producing a track with strong, compacted walls, without weighing, down the apparatus.
Patent CA-1152269-A (CA)
Inventor: MCAVOY THOMAS R
IPC: A47L11/164
Filed: 1980-02-25
Granted: 1983-08-23
Abstract: ABSTRACT This invention relates to surface treating pads, and, more specifically, to a novel layered treating pad of lofty low-density abrasive product having a plurality of renewable working surfaces, A surface treating pad having a renewable working surface comprises a base layer upon which is removably fastened at least one unitary stack comprising a plurality of thin layers of lofty nonwoven abrasive material.  The layers on the stack are removably adhesively fastened together and to the base layer so that individual layers may be easily separated from the stack or from the base layer to expose a fresh surface treating working face without damage to the remainder of the pad, The pads are particularly suited for treating floors.
Patent CA-1127635-A (CA)
Title: Process for reducing the viscosity of cellulose  ethers by means of ozone and application thereof
Inventor: HOLST ARNO
IPC: C08B11/02
Filed: 1980-04-14
Granted: 1982-07-13
Abstract: Hoe 79/K 015 PROCESS FOR REDUCING THE VISCOSITY OF CELLULOSE      ETHERS BY MEANS OF OZONE AND APPLICATION THEREOF     Abstract of the Disclosure This invention relates to a process for reducing the viscosity of cellulose ethers by reacting a water-soluble cellulose ether with ozone in the presence of water, wherein said cellulose ether which is moist with water and has a dry content of from 20 to 95% by weight is reacted with an ozone/oxygen mixture or with an ozone/air mixture at a temperature of about 0 to 60° C.