baber/WOPTO huggingface dataset:
Patent CA-1108375-A (CA)
Inventor: LALANCETTE JEAN-MARC
IPC: C01F5/22
Filed: 1978-08-30
Granted: 1981-09-08
Abstract: A B S T R A C T            Substantially pure magnesium hydroxide or carbonate is obtained from naturally-occurring minerals containing at least 10% magnesium silicate by adjusting the pH a magnesium bisulfite solution obtained therefrom to between 8.0 and 8.9 under an oxidizing atmosphere thereby to produce a magnesium sulfate solution from which the magnesium hydroxide or carbon-ate can be readily obtained.
Patent CA-1090525-A (CA)
Inventor: HECKELSBERG ROBERT E
IPC: E04D3/368
Filed: 1978-10-26
Granted: 1980-12-02
Abstract: BUILDING PANEL             ABSTRACT OF THE DISCLOSURE           The primary components of a roof structure comprise a series of substantially identical metal panels having flanges that interlock when the panels are laid side by side and which are sub-sequently tightly seamed together to convert the individual panels into an integrated roof forming membrane. The interlock joints between adjacent panels are adapted for connection to flexible panel mounting clips that attach the panels to the purlins in such a way as to permit the panels to expand or contract in response to temper-ature and pressure changes, thereby minimizing roof stressing.
Patent CA-1121736-A (CA)
Inventor: PEEK JOHANNES B H
IPC: G11B3/00
Filed: 1978-10-26
Granted: 1982-04-13
Abstract: 12.7.1978                                               PHN 8931 ABSTRACT:       A circuit for suppressing pulse-shaped interferences in an audio signal caused by scratches on a gramophone disc, comprising a signal processing section connected between an audio frequency input and an audio frequency output, comprising a noise suppressor having a control input, as well as a control signal section connected between the audio frequency input and the control input, comprising a first threshold selection circuit connected to the audio frequency input for selecting pulse-shaped signals from the audio signal, followed by a second threshold selection circuit for distinguishing the pulse-shaped signals originating from noise signals from those originating from musical signals.     - - -
Patent CA-1122014-A (CA)
Inventor: OLNEY ROBERT S
IPC: C06B33/02
Filed: 1978-11-08
Granted: 1982-04-20
Abstract: ?7465 PRODUCTION OF EXPLOSIVE EMULSIONS          ABSTRACT                A process and-apparatus for preparing cap sensitive water-in-oil explosive emulsion compositions on a commercial basis is provided which includes mixing a hydrocarbon fuel component, an emulsifier, and an aqueous inorganic oxidizing salt solution under mixing conditions sufficient to obtain an emulsion matrix composition and thereafter blending microbubbles with the emulsion matrix, the microbubbles being introduced to the emulsion matrix from a deaerated reservoir thereof.
Patent CA-1096556-A (CA)
Title: Flexible microporous cellulosic membranes and methods  of formation and use thereof
Inventor: KESTING ROBERT E
IPC: B01D71/08
Filed: 1978-11-16
Granted: 1981-03-03
Abstract: Abstract Microfiltration membranes are described comprising 10% to 50% cyanoethylated polysaccharide ether polymers blended with 50% to 90X polymers of cellulose nitrate, cellulose acetate or mixtures of the two.  These membranes are flexible and strong and can be readily pleated for use in cartridge filters as well as used flat in con-ventional single- or multi-plate holders.  They are also more thermally stable than conventional "mixed ester" (cellulose nitrate/cellulose acetate) membranes.
Patent CA-1111680-A (CA)
Inventor: LARES JOSEPH P
IPC: A61C1/05
Filed: 1979-01-16
Granted: 1981-11-03
Abstract: ABSTRACT      A dental handpiece has a housing with a removable cap together defining a chamber in which are coaxially mounted two bearings, each with an inner race and an outer race spaced apart to leave an intervening gap.           Annular housing shields extend into the gaps.  The bearings are mounted in elastomeric rings, each having a circular-cylindrical mounting surface.  A shaft is disposed in the inner races of the rings.  Between the bearings the shaft carries a turbine runner including two cups each having a hub and having peripheral turbine blades spaced apart a predetermined distance.  The cups are mounted on the shaft with the cups facing each other so that the hubs and peripheries abut in a common plane normal to the axis and also defining a central annular space.  The turbine blades are staggered with respect to each other.  They receive air from an inlet passage in the housing and release air to an outlet passage in the housing.
Patent CA-1123253-A (CA)
Inventor: LUSCHER FRED
IPC: G03G21/00
Filed: 1979-03-29
Granted: 1982-05-11
Abstract: ABSTRACT OF THE DISCLOSURE     The multifunction reprographic apparatus enables the user to choose both photocopies and photographs, whether instantaneous or not, in different formats, in monochrome or in colour, as well as various types of identity card.  The apparatus comprises, disposed in a housing having a window and a  window, an optical system disposed at the entrance of a dark chamber, a roll of photosensitive paper guided and entrained by rollers, a lighting device, and a developing unit.          A selector lever enables the position of the various elements to be modified, and in particular to retract the mirror, so that photocopies of two-dimensional objects placed in the plane of the window or photographs of two- or three-dimensional objects located in front of the window may be made.
Patent CA-1092458-A (CA)
Inventor: OCCELLA SERGIO
IPC: F02B1/04
Filed: 1979-04-17
Granted: 1980-12-30
Abstract: ABSTRACT           An internal combustion engine has a fuel injector located in a side wall of each cylinder, and a combustion chamber in each cylinder formed largely by a cavity recessed in the crown of the piston, to define substantial "squish" areas between the piston crown and a cylinder head which contains an ignition prechamber, situated opposite the fuel injector, communicating with a sparking plug, the fuel injector being arranged to direct at least one part  of the fuel into a region adjacent the ignition prechamber which forms part of the volume of the combustion chamber.
Patent CA-1094973-A (CA)
Inventor: FREEMAN GEORGE M
IPC: C25C1/16
Filed: 1979-05-29
Granted: 1981-02-03
Abstract: ABSTRACT           Hydrometallurgical process for the recovery of copper arsenate from zinc plant cement copper cake residues and the use thereof in the purification of zinc electrolyte, with the attendant upgrading of the copper value in the treated cement copper residues.  The cake residues are first subjected to an acid leach followed by an alkali addition to adjust the pH of the slurry to about 3.5 to 4.0 and to extract zinc, cadmium and cobalt in solution and provide a copper-enriched residue.  Cobalt is then precipitated and separated from the extraction solution.  The copper-enriched residue is subjected to caustic leach to extract arsenic in solution therefrom and provide a copper-enriched cement copper cake product.  The arsenic containing extraction solution is then reacted with a copper salt to form copper arsenate residue and leave purified zinc electrolyte.  This divisional case deals with the process of purifying zinc electrolyte contain-ing cobalt contaminant prior to electrolysis thereof in the electrowinning of metallic zinc comprising maintaining said electrolyte at a temperature of about 80 to 90°C, adding zinc dust and copper arsenate then raising the temperature to and maintaining it in the range of about 90 to 95°C until the cobalt level of said electrolyte is less than 0.1 ppm, and adjusting the pH to about 4.0 and then removing the solids from said electrolyte.
Patent CA-1092837-A (CA)
Inventor: TROOST ROBERT C
IPC: F16C1/02
Filed: 1979-06-07
Granted: 1981-01-06
Abstract: - i -Abstract of the Disclosure Remote control flexible shaft having balanced torsion deflection in either direction of rotation when subjected to torsional loads.  Balanced torsional deflection provides the same "feel" of the control element, whether a wheel, valve, knob, or the like, and the same "lag" period before response of the controlled element, regardless of direction of rotation of the control element.  The shaft employs inter-connected equal lengths of conventional flexible shafting of identical construction except for the opposite lay of the wires comprising each respective layer of each length.  Speci-fic torsional deflection characteristics may be obtained by varying lengths and/or construction of the two flexible shaft lengths, or more than two lengths of shafting may be employed.
Patent CA-1137667-A (CA)
Inventor: SCHOOFS FRANCISCUS A C M
IPC: H04M19/00
Filed: 1979-07-05
Granted: 1982-12-14
Abstract: ABSTRACT:         The invention relates to arrangement for apply-ing a signal to a transmission line.  Up to the present the application of signals to a telephone line in  a sym-metrical manner has been performed by means of trans-formers.  The object is to provide an electronic solu-tion which satisfies high requirements as regards the symmetry and which is suitable for a simple realization in integrated form.  There is described a solution wherein the signal to be transferred is applied, super-imposed on a direct current, to the reference voltage circuit of a bidirectional current source, which, from high internal resistances, applies currents, which are proportional to the signal, to the wires of the tele-phone line.
Patent CA-1130911-A (CA)
Inventor: MATSUDA ATSUSHI
IPC: H04R7/04
Filed: 1979-08-13
Granted: 1982-08-31
Abstract: ABSTRACT OF THE DISCLOSURE A loudspeaker includes a flat plate diaphragm mounted in a speaker frame and which is driven by a plurality of magnetic drivers each having a magnetic gap, a voice coil bobbin connected to the diaphragm at a respective node portion of the divided vibration mode and a voice coil in the respective magnetic gap and being wound around the voice coil bobbin therein.  Rotational vibration of the diaphragm is prevented by a pole member which is connected from the center of the diaphragm to a damper supported behind the speaker frame on a damper supporting frame.  The leverage due to the longer length of the pole member makes the damper member more effective in resisting rotational vibration.  The damper supporting frame is mechanically connected to the speaker frame and/or magnetic drivers to add stiffness to the structure.
Patent CA-1125814-A (CA)
Inventor: CARMICHAEL WILLIAM E
IPC: B60B1/00
Filed: 1979-09-13
Granted: 1982-06-15
Abstract: Morfee 2 TRUCK HUB AND METHOD OF BINDING SAME                ABSTRACT OF THE DISCLOSURE           Prior art truck hub has central boss with central axis, a plurality of spokes extending from the boss, and webs extending between the spokes.  End faces of spokes commonly crack and by using method of invention the hub can be salvaged by removing from outer end of each spoke, a generally U-sectioned portion of end face and adjacent portions of spoke to form a pair of spaced shoulders on side portions of spoke.  An annular rim or band is fitted on shoul-ders so that cylindrical inner face of band is adja-cent generally axial edges of shoulders, and annular end face of band is adjacent radial edges of shoul-ders and partially annular edges of outer faces of spokes.  Band is welded to ends of spokes to provide additional support for tire bearing rim.
Patent CA-1138889-A (CA)
Inventor: RIEW CHANGKIU K
IPC: C08C19/36
Filed: 1979-09-19
Granted: 1983-01-04
Abstract: ABSTRACT OF THE DISCLOSURE          Hydroxyl-terminated liquid polymers are prepared by reacting at least one aminoalcohol with a carboxyl-terminated liquid polymer having a carbon-carbon backbone.  These polymer  have better hydrolytic stability than hydroxyl-terminated liquid polymers containing ester groups, and are useful together with polyisocyanates for open or centrifugal casting, liquid injection molding and the like to produce various thermoset elastomeric products.
Patent CA-1121721-A (CA)
Inventor: JANNSEN EDWARD M
IPC: E21B29/00
Filed: 1979-09-26
Granted: 1982-04-13
Abstract: ABSTRACT OF THE DISCLOSURE           A tool for perforating water well pipe casings is disclosed.          The tool is designed for use with air rotary well drilling apparatus.          The tool includes a slideable casing perforator wheel actuated by a pneumatic cylinder carried within the tool.  The casing may be perforated and subsequent development of the well carried out while the tool is in place.  No removal is necessary to carry out well development.
Patent CA-1120936-A (CA)
Inventor: LEONE RONALD E
IPC: C07C67/00
Filed: 1979-10-26
Granted: 1982-03-30
Abstract: Abstract of the Disclosure Novel 3,3-disubstituted acylhydrazinophenyl-thiourea nucleating agents are disclosed as well as silver halide photographic emulsions and elements con-taining silver halide grains capable of forming an internal latent image having the nucleating agents adsorbed to the surface of the silver halide grains.  Imaging processes in which these materials participate are also disclosed.
Patent CA-1105245-A (CA)
Title: Dispositif pour la realisation d'un cable de telecommande comportant deux fils conducteurs separes par un element central
Inventor: SEGUIN PIERRE
IPC: H01B13/16
Filed: 1979-12-11
Granted: 1981-07-21
Abstract: Dispositif d'enduction et de calibrage utile dans la réalisation d'un cable de télécommande ayant deux fils conducteurs. Ce dispositif comporte un bac contenant la matière fusible dans laquelle passent les fils, ce bac étant équipé d'une filière de calibrage horizontale.  Il comporte de plus des guides de positionnement permettant de faire converger les fils vers la filière en les maintenant écartés dans un plan horizontal contenant l'axe de la filière.
Patent CA-1134611-A (CA)
Inventor: CRAWFORD THOMAS W GROVE STREET
IPC: G09B11/02
Filed: 1979-12-24
Granted: 1982-11-02
Abstract: ABSTRACT            With respect to the teaching of a young child to hand-write or print, a pencil, paper and visual outlines of letters are used with varying degrees of success.  This invention is composed of two separate devices which should be used in combination, to make more effective the learning process, or to be used in improving the quality of handwriting. The devices cause correct finger position and angle of the writing instrument. The one component is an irregularly shaped moulded unit into which a pencil, pen or other writing instrument, may be inserted, or, a moulded unit which forms part of the outer casing of the writing instrument.  Appropriate indentations in the unit are provided to receive and control the position of the three fingers normally used to hold a writing instrument.  One or more wings may form part of the device to guide the hand into a specific angle with relation to the writing surface.          The second component of the system is a template in which the printed or written characters (character may be defined as any digit, alphabetic letter, or symbol such as the dollar sign or shorthand outline) are engraved with grooves cut at an angle so as to complement the wing in the moulded unit.  The template would provide the facility for tracing many times quickly and accurately; acceptable outlines of the characters.
Patent CA-1137793-A (CA)
Inventor: EMMETT JOHN E
IPC: F16H55/48
Filed: 1980-01-02
Granted: 1982-12-21
Abstract: Case 4332  JFM/smt  12/12/79 IMPROVED PLASTIC PULLEYS                   ABSTRACT OF THE DISCLOSURE    Plastic pulleys are improved by providing a shaped metal ring on the plastic surface of the pulley sheave which contacts the belt. The metal ring provides a surface with the wear resistance and ther-mal conducting properties that reduce belt and pulley wear.
Patent CA-1142884-A (CA)
Inventor: MCCUTCHEN HUGH L
IPC: C25B9/19
Filed: 1980-01-21
Granted: 1983-03-15
Abstract: IMPROVED ANODE AND BASE ASSEMBLY      FOR ELECTROLYTIC CELLS     ABSTRACT OF THE DISCLOSURE   An improved anode and base assembly for diaphragm type electrolytic cells is disclosed. In the present embodiment, downwardly facing annular portions at the base of the anode risers of dimensionally stable anodes of the type well-known in the art are welded from below directly to a metal cell base cover which seals the electrolyte contained within the cell from the cell base which is generally of copper or aluminum, thereby eliminating corrosion problemsassociated with leaks in the rubber gaskets or blankets formerly used between the anode risers and the cell base.
Patent CA-1140582-A (CA)
Inventor: SCHOLL HANS-JOACHIM
IPC: C01B19/02
Filed: 1980-01-23
Granted: 1983-02-01
Abstract: Mo-2032 LeA 19,452 A PROCESS FOR SEPARATING SELENIUM, SELENIUM  COMPOUNDS, SULFUR AND/OR SULFUR COMPOUNDS FROM POLYURETHANES CONTAINING THESE ELEMENTS              AND/OR COMPOUNDS            ABSTRACT OF THE DISCLOSURE     A process for separating selenium, selenium compounds, sulfur and/or sulfur compounds from urethanes containing these elements and/or compounds by reacting said urethanes with an aqueous permanganate solution and then separating the resulting phase system.
Patent CA-1125458-A (CA)
Inventor: ALBANESE JAMES J
IPC: C09K3/30
Filed: 1980-01-24
Granted: 1982-06-15
Abstract: ABSTRACT An aerosol preparation of water base character for pro-viding a continuous film upon dispensing comprising a water phase and a continuous phase wherein the active ingredient may be water soluble or water insoluble, or may be in emulsions, a liquefied or compressed gas propellant, or combinations thereof, an agent for controlling the manner in which the propellant leaves the developed film, and a dispersal agent consisting of cocodiethanolamide.
Patent CA-1150418-A (CA)
Inventor: BERRY DANIEL H
IPC: G03F9/00
Filed: 1980-02-08
Granted: 1983-07-19
Abstract: ABSTRACT A target for use in aligning masks used in producing microcircuits which is of a size that can be printed or a microcircuit chip without interfering with the lines thereon, consisting only of lines vertically or diagonally disposed with respect to the image transducer is disclosed. Also disclosed is an automatic system for aligning such targets.
Patent CA-1138708-A (CA)
Inventor: BROWN DOUGLAS B
IPC: B30B9/12
Filed: 1980-03-27
Granted: 1983-01-04
Abstract: ABSTRACT OF THE DISCLOSURE     A press for continuous expressing of a liquid from a particulate liquid/solid mass of the type including a conveyor screw or auger advancing the mass through a tubular housing which is provided with drainage perforations.  The compression and advancement of the material through the perforate section is effected by the face of a reciprocating annular sleeve, the stroke of the sleeve being so arranged that at least one-half of the travel of said face takes place within the perforated area.  The frequency of the reciprocating movement of the sleeve is three cycles per second or more, to reduce resistance to the passage of the mass through the housing.         The device is capable of a considerable increase in dewatering performance, as compared with known devices of the type operating more or less solely with a conveyor screw.
Patent CA-1135716-A (CA)
Inventor: ONODA TAKERU
IPC: B01J38/00
Filed: 1980-03-27
Granted: 1982-11-16
Abstract: ABSTRACT OF THE DISCLOSURE     A cobalt component is separated from a hydroesterification reaction mixture obtained by reacting a polyhydric alcohol with an olefin and carbon monoxide in the presence of a cobalt carbonyl complex and a pyridine base, by contacting (a) pyridine or ?-picoline and (b) water with said reaction mixture containing the cobalt compo-nent and product fatty acid ester of polyhydric alcohol to separate it into two phases a phase containing the fatty acid ester of polyhydric alcohol and a phase containing a cobalt component.           In the process, the ratio of pyridine or ?-picoline is 0.2 to 10 parts by weight to said fatty acid ester of  polyhydric alcohol and the ratio of water is 0.05 to 10 parts by weight to pyridine or ? - picoline.
Patent CA-1126307-A (CA)
Inventor: WEIRICH WALTER
IPC: F16L39/02
Filed: 1980-04-03
Granted: 1982-06-22
Abstract: ABSTRACT OF THE DISCLOSURE                A hydraulic coupling device for a multi-line hose comprises a screw cap which houses a plurality of plug pins.  The hose has a plurality of hydraulic lines bunched together within a flexible sheath.  The hose is connected to the coupling device by means of a sleeve, and the lines are connected to the plug pins.          Each of the plug pins has a collar.  The collars are held against an apertured holding disc by abutment faces formed respectively on a retainer disc and the sleeve.          The plug pins are mounted so as to have a predetermined amount of axial and radial play.
Patent CA-1145053-A (CA)
Inventor: JOHNSON WILLIAM D
IPC: G06F13/38
Filed: 1980-04-14
Granted: 1983-04-19
Abstract: INDUSTRIAL CONTROL SYSTEM     Abstract of the Disclosure An industrial control system in accordance with the present invention is provided with a plurality of diverse controlled devices (e.g., fans, pumps, valves, solenoids, relays, etc.) for effecting overall system control.  Each device has a unique set of logic control functions and/or command sequences and is connected, through an input/output interface, to a stored-program single board computer that provides device control and monitoring.  The computers each include a central processor con-trolled by a composite or "master" program which is common to all the computers and which includes instruction sequences for all logic control functions and command sequences that exist within the system.  A user alterable interconnection device (UAID) permits only those logic control function and/or command sequence portions of the master program that relate to a particular one of the con-trolled devices to operatively connect with the particular input/ output ports associated with that controlled device.  As the master program successively loops, only those logic control functions and/ or command sequences that relate to the particular controlled device, as determined by the user alterable interconnection device, are operative to address the input/output ports associated with the controlled device and thereby effect device control and monitoring.          The invention permits simple and efficient dedication of a plurality of single board computers having only one master program to an equal member of diverse controlled devices without the drawbacks normally associated with dedicated stored-program controllers.
Patent CA-1156240-A (CA)
Inventor: LANG HANS-JOCHEN
IPC: C07D277/42
Filed: 1980-07-02
Granted: 1983-11-01
Abstract: Abstract of the disclosure:     Thlazoline derivatives of the general formula I                                            (I) wherein R1 to R7 have the specified meanings, physio-logically acceptable acid addition salts thereof, pro-cesses for their preparation, pharmaceutical prepara-tions based on those compounds and their use for acting on the serum lipoprotein spectrum. The invention more-over relates to compounds of the formulae (IV)         (XI) (XVII)   wherein A, R, R1 to R7, Y and Z have the specified meanings.