baber/WOPTO huggingface dataset:
Patent CA-1209987-A (CA)
Inventor: TOSCANO LUCIANO
IPC: C07H17/08
Filed: 1982-11-26
Granted: 1986-08-19
Abstract: ABSTRACT OF THE DISCLOSURE           Fluorinated derivatives of erythromycins A,B,C and D, having antibiotic activity, are prepared, starting from 8,9-anhydroerythromycin 6,9-hemiacetals or their N-oxides, through the reaction with a compound capable of generating electrophilic reactive fluorine, the resulting reaction pro-duct undergoing thereafter a reduction, possibly together with a methylation, to the corresponding (8S)-8-fluoro-erythromycins.
Patent CA-1208336-A (CA)
Inventor: EMPLIT RAYMOND H
IPC: G01F25/00
Filed: 1982-12-13
Granted: 1986-07-22
Abstract: A LEVEL INDICATOR CONTROL SYSTEM FOR USE WITH CAPACITANCE PROBES      IN TANK CONTAINING SUBSTANCES            Abstract of the Disclosure A level indicator control system including a micro-processor that controls the height and, therefore, the amount of the substance, such as fluid or granular solid, to be con-tained in a closed or open tank or vessel.  The system provides calibrated digital or analog output that shows the extent to which the tank is filled with substance at substantially any level.  A scale, in percent, each value representing the per-centage of fullness of the tank, is produced after low and high limits, representing any low and high substance levels respectively, are provided to the microprocessor.  The scale values are a func-tion of the changes in capacitance between the stationary probe and the tank wall as the level of substance approaches or sub-merges the probe.  The system finds its probe capacitance and sets its own high and low control set point limits automatically.          Thereafter, for example, when the substance in the tank exceeds the high limit set point value, the control system prevents more fluid or granular solid from entering the tank.
Patent CA-1200968-A (CA)
Inventor: ELLS JOHN W
IPC: F16L55/16
Filed: 1983-01-28
Granted: 1986-02-25
Abstract: ABSTRACT OF THE DISCLOSURE           The flow of liquid escaping from a leak in a vessel, eg, a pipeline, is reduced or eliminated by introducing particles into the liquid.  The particles are dispersed in a slug of material of higher viscosity than the liquid in the vessel and the size of at least some of the particles is greater than that of the hole.  The position of introduction of the slug is such that the slug containing the particles is carried by the liquid to the hole.  The particles are non-deformable so that they lodge in the hole without extruding through at elevated pressure and thereby seal the hole.
Patent CA-1200634-A (CA)
Inventor: OLSON DANIEL R
IPC: C08J7/046
Filed: 1983-02-18
Granted: 1986-02-11
Abstract: HEAT CURABLE HARDCOAT COMPOSITIONS, COATED ARTICLES AND METHOD             ABSTRACT OF THE DISCLOSURE           Heat curable hard coat compositions are provided of aqueous colloidal and copolymer of an alkylacrylate and a polyalkoxysilylacrylate or a mixture of an alkylacrylate-acrylic acid copolymer and an epoxy-alkoxysilane.  The heat curable hardcoat composition can be applied onto various substrates, for example, a polycarbonate substrate, and thereafter heat cured to produce coated articles having adherent and abrasion resistant coatings.
Patent CA-1180637-A (CA)
Inventor: BOWDEN CHARLES J
IPC: F15B11/024
Filed: 1983-03-03
Granted: 1985-01-08
Abstract: Improved Control Valve for Double-Acting Piston and Cylinder Assemblies Abstract An improved control valve for double-acting piston and cylinder  assemblies  is  disclosed  in  which  pressure  for actuating a regeneration valve  to direct  hydraulic  fluid from the contracting side of the piston to the expanding side, is controlled by a cylindrical check valve apparatus (86 - 112) which surrounds the valve plunger and controls the pressure of fluid flowing from the contracting side to the reservoir.
Patent CA-1219325-A (CA)
Inventor: MORIKAWA KENICHI
IPC: H04Q3/58
Filed: 1983-05-09
Granted: 1987-03-17
Abstract: ABSTRACT   A key telephone system for selectively connecting several telephone stations to several telephone lines embodying the present invention includes a central switching circuit and a central control circuit.  Several key tele-phone stations are connected to the central switching circuit each by a single communication path and also connected to the central control circuit each by a single data path.  Each of the telephone stations includes several devices for displaying service status, sources for operating the display devices, several buttons for specifying service request, and circuitry for periodically transmitting over the data path service request information to the central control circuit in response to the service request.  The central control cir-cuit includes circuitry for periodically transmitting over each of the signal data paths service status information to selected one of the telephone stations, circuitry for receiving the service request information, and comparison cir-cuitry for comparing the service request information with immediately pre-ceding service request information to produce a noncoincidence signal.  The service status information is changed in response to the noncoincidence signal to present service status information.  Each of the key telephone stations includes circuitry for connecting a selected one of the display devices to a selected one of the sources in response to the service status information.
Patent CA-1217285-A (CA)
Title: Ore flotation with combined collectors
Inventor: BRESSON CLARENCE R
IPC: B03D1/02
Filed: 1983-10-05
Granted: 1987-01-27
Abstract: ABSTRACT OF THE DISCLOSURE Allyl n-butyl trithiocarbonate and n-dodecyl mercaptan are used for the flotation of molybdenum and/or copper-containing ores.  Allyl n-butyl  trithiocarbonate  and  n-dodecyl mercaptan and poly(propylene glycol) are used for the flotation of molybdenum and/or copper-containing ores.
Patent CA-1199705-A (CA)
Inventor: LOVALENTI SAM
IPC: G01N21/90
Filed: 1983-10-28
Granted: 1986-01-21
Abstract: ABSTRACT OF THE DISCLOSURE    A method and apparatus for inspecting a translucent container to detect a radial reflective defect in the container is disclosed.  The apparatus comprises means for illuminating a container by focusing a radiant beam of light from an elongated image extending in a direction running generally parallel to the longitudinal axis of the container along a portion of the container being inspected.  The apparatus also comprises means focused on the illuminated portion of the container for sensing the intensity of light reflected from the illuminated portion and for viewing the illuminated portion from a direction and forming an angle ranging from about 75 degrees to about 105 degrees from a path of the incident beam of light.  The sensing means provides a plurality of the electrical signals each proportional to the reflected intensity from a corresponding position on the illuminated portion of the container.  The apparatus also comprises means responsive to the plurality of electrical signals for providing a reject signal when one of the plurality of electrical signals exceeds a predetermined threshold in response to the presence of a reflective defect.
Patent CA-1261717-A (CA)
Inventor: BACON JOHN R
IPC: G01N21/64
Filed: 1983-12-06
Granted: 1989-09-26
Abstract: METHOD AND APPARATUS FOR OXYGEN DETERMINATION     ABSTRACT    An oxygen sensor has an inorganic complex, usually a complex of platinum group metals, with ?-diimine ligands immobilized in a polymer support.  The metal com-plex is a luminescent material quenchable by oxygen.      The polymer is permeable to oxygen and impermeable to interfering quenchers.  Oxygen concentration in a gase-ous or liquid environment is determined by exposing the sensor to the environment and measuring the quenching-related decrease in intensity or lifetime of luminescence.          In one version, a reference device has areas of differing size or concentration of luminescent material immobilized in a support which is relatively impermeable to oxygen.          Matching the luminescence of the sensor with the luminescence of an area of the reference device determines the extent of quenching and the concentration of oxygen.  An alterna-tive sensor has a mixture of luminescent materials having differing sensitivities to oxygen quenching and differing colors of emission.
Patent CA-1191212-A (CA)
Inventor: DITTBURNER ROBERT C
IPC: H04M19/02
Filed: 1983-12-08
Granted: 1985-07-30
Abstract: UNIVERSAL TELEPHONE RINGING GENERATOR          Abstract of the Disclosure A high level signal generator provides a wide range of ringing signals in response to a periodic clock signal and as addressed by d plurality of manually setable binary words.  The binary words are gated one after the other from a corresponding plurality of binary word sources in response to a control signal.  An analog signal source generates an analog signal with a frequency as selected by an instant gated binary word.  A control signal generator generates the control signal having a plurality of states, each corresponding to d one of a corresponding plurality of cadence phases.  Each of the cadence phases is of a duration consistent with an occurrence of a plurality of the clock signals as defined by the gated binary word.     -i-
Patent CA-1221584-A (CA)
Inventor: LOREK MANFRED
IPC: E05B39/04
Filed: 1983-12-28
Granted: 1987-05-12
Abstract: ABSTRACT OF THE DISCLOSURE           A checking device, for use on a movable member such as a door on hotel refrigerators and other lockable self-service apparatuses, is provided with an externally visible indicating element which is activated when the apparatus  is opened with an apparatus key and  is gravitationally biased to remain in an activated state regardless of subsequent openings of the apparatus until the indicating element is reset to an inactivated initial state by actuation of a setting member by means of a key.
Patent CA-1211368-A (CA)
Inventor: PENNY GLENN S
IPC: C09K8/54
Filed: 1984-01-26
Granted: 1986-09-16
Abstract: METHOD OF ENHANCING THE EFFECTIVENESS OF BIOCIDES                      Abstract of the Disclosure Methods of increasing biocide effectiveness are provided wherein bacteria are contacted with an admixture of a biocide and a cationic perfluoro compound represented by the following formula:
Patent CA-1220320-A (CA)
Title: Method of producing sulphuric acid from sulphur dioxide and apparatus therefor
Inventor: CHUANG KARL T
IPC: B01J31/00
Filed: 1984-02-10
Granted: 1987-04-14
Abstract: TITLE             A METHOD OF PRODUCING SULPHURIC ACID FROM              SULPHUR DIOXIDE AND APPARATUS THEREFOR     INVENTORS                         Karl T. Chuang David R.P. Thatcher ABSTRACT OF THE DISCLOSURE       A process and an apparatus are described for producing sul-phuric acid from sulphur dioxide (SO2) wherein two fluid streams, in the form of a gaseous SO2 gas and oxygen (air), and a liquid, primary sul-phuric acid and water, are contacted with each other and a catalyst as-sembly at a temperature in the range 150° to 280°C, the catalyst assembly comprising, for example, non-combustible, sulphuric acid resistant, porous ceramic supports with an outer, porous membrane coatings on them of, say, polytetrafluorethylene, which is a process temperature and sulphuric acid resistant, water repellent, gaseous sulphur dioxlde and oxygen gas permeable, high molecular, organic polymeric material, and platinum crystallites dispersed on the support in the polytetrsfluor-ethylene so that: i)  gaseous sulphur dioxlde and oxygen are catalytically combined to form sulphur trioxide, ii)  exothermic heat generated in the catalyst assembly by the formation of sulphur trioxide therein dissipated by the sulphuric acid and water, iii)  the sulphur trioxide and the water combine to form secondary sulphuric acid, and iv)  the primary sulphuric acid combines with the secondary sulphuric acid to form a relatively more concentrated sulphuric acid solution therewith which is collected.
Patent CA-1218049-A (CA)
Inventor: MORI KEI
IPC: F21V8/00
Filed: 1984-02-29
Granted: 1987-02-17
Abstract: ABSTRACT An ornamental lighting device includes a plurality of optical fibers to which condensed light from a light source is distributed through a fiber optic cable. The optical fibers are arranged parallel to each other and held between a pair of light transmitting panels, which are rigidly mounted on a pedestal. Light propagating through the optical fibers is radiated through the light transmitting panels to the ambience. A plurality of such lighting devices may be arranged side by side and supplied by a common light source.
Patent CA-1235346-A (CA)
Inventor: HENRY DONALD D
IPC: F24B7/04
Filed: 1984-04-02
Granted: 1988-04-19
Abstract: A HEATING UNIT          ABSTRACT OF THE DISCLOSURE      A heating unit adapted for attachment to or inclusion in heating appliance of the type having a combustion chamber, the heating unit including a shaped flue duct positioned in association with a com-bustion chamber of a heating appliance and adapted via fan means to draw therefrom gases and draw them through at least one convector pipe before the flue gases return and pass to a flue to be allowed to escape to atmosphere.          In a domestic central heating situation the combustion chamber can be a firebox of a space heater or an open fireplace.  The firebox has in association therewith a duct through which the flue gases are drawn to a free standing convector unit in which the convector pipes are situated and around which ambient air circulates to be heated to thereby heat the area in which the convector unit is situated.  In an industrial, horticultural and agricultural situation the heating unit can be associated with a firebox of a coal, wood, woodwaste or oil fired boiler or burner.  The free standing convector unit thereof can be sited in a glasshouse or in a factory so that heat convected therefrom heats the ambient air in which the convector unit is sited.
Patent CA-1209189-A (CA)
Title: Compact resistor assembly for rotary electric machine
Inventor: BALDWIN JEFFREY D
IPC: H02K11/00
Filed: 1984-05-30
Granted: 1986-08-05
Abstract: Compact Resistor Assembly For A Rotary Electric Machine Abstract A rotary electric machine including a stator with a rotor journalled for rotation within the stator about an axis and carrying an electrical conductor.  The resistor is mounted on the rotor and is electrically associated with the conductor.  The resistor is narrow axially of the rotor and elongated radially but within the periphery of the rotor to thereby provide an axially compact rotary electric machine.
Patent CA-1224291-A (CA)
Inventor: KUMMER DAVID A
IPC: G09G1/16
Filed: 1984-06-20
Granted: 1987-07-14
Abstract: RASTER SCAN DISPLAY SYSTEM                      Abstract A raster scan display system includes a plurality of storage maps.  These maps are addressable in either of two modes.  In the first mode each map contains bit mapped data and the maps are addressed together to provide color signals from which color video signals are derived.  In the second mode, one map contains character representing data and a further map, character display dot patterns.  In this mode the first map is addressed to provide partial addresses for the further map.  These partial addresses are combined with row scan data signals to access the further map from which the character display dot data is used to generate the video signals.
Patent CA-1227575-A (CA)
Inventor: DUWEL EDWARD C
IPC: H04L1/14
Filed: 1984-07-04
Granted: 1987-09-29
Abstract: ABSTRACT OF THE DISCLOSURE Interface apparatus allows a serial communicating device to communicate with an echoplex communicating device.  A first microprocessor coupled to the serial device converts serial data to a parallel format.  The parallel formatted data is transferred to a second microprocessor which is coupled to the echoplex device. The second microprocessor converts the parallel data from the first microprocessor into echoplex data for transmission to the echoplex device.  When data is to be transferred from the echoplex device to the serial device, the second microprocessor converts the echoplex data to a parallel format.  The parallel formatted data is transferred to the first microprocessor, for conversion into a serial form and transmission to the serial device.  If both the serial and echoplex devices wish to transmit at the same time, priority is awarded to the echoplex device.  The interface operates asynchronously on real time basis, and is transparent.
Patent CA-1243716-A (CA)
Inventor: BROWER BOYD G
IPC: H01H37/76
Filed: 1984-08-03
Granted: 1988-10-25
Abstract: FLUORESCENT LAMP BIMETAL SWITCH CONTACT ARRANGEMENT                             ABSTRACT     A fluorescent lamp includes a circuit breaker having a sealed glass envelope with a pair of electrical conductors sealed therein, a meltable by-pass element short-circuiting the electrical conductors within the glass bottle and a bimetal  switch of U-shape form having one leg portion attached to one of the electrical conductors and a second leg portion forming a knife-edge contact with the other electrical conductors.
Patent CA-1228541-A (CA)
Title: Compositions to control endoparasites
Inventor: EVANS DAVID A C
IPC: A61K47/00
Filed: 1984-08-13
Granted: 1987-10-27
Abstract: ABSTRACT         COMPOSITIONS  TO  CONTROL  ENDOPARASITES      The invention concerns a pour-on composition for topical application to animals to control endoparasites. The composition comprises an endoparasiticide and a carrier comprising at least one saturated aliphatic carboxylate ester of a mono-alkyl ether of a mono- or poly-alkylene glycol.  The compositions show surprisingly improved efficacy and freedom from unacceptable skin reaction even when applied to sensitive breeds of animals.  In further embodiments the invention provides a process for the treatment of animals to control or eradicate endoparasites and a process for preparing endoparasiticidal compositions.
Patent CA-1247812-A (CA)
Inventor: VERTON JOSE
IPC: B60S1/38
Filed: 1984-09-12
Granted: 1989-01-03
Abstract: Abstract A wiper assembly is disclosed and has a wiper arm mounted on a drive shaft, a wiping element in wiping contact with a surface to be wiped, a pressure distribut-ing rod or flexor slidably attached to the wiping element for reinforcing the wiping element, and leaf springs linking the wiper arm with the pressure distributing rod or flexor.  The leaf springs may be integral with the arm and slidably connected to the rod or flexor by claws or may be integral with the rod or flexor and slidably con-nected to the arm.  The parts of the wiper assembly may all be made of plastic.  When the arm is made of plastic, a preshaped reinforcing blade may be part of the arm for assisting in conforming the wiping element to the surface to be wiped.
Patent CA-1229449-A (CA)
Title: Preparation of lignocellulosic-isocyanate molded compositions using a copolymer of a functional polysiloxane-carboxylic acid or salt thereof as release agent
Inventor: NGUYEN TINH
IPC: C08G77/04
Filed: 1984-10-29
Granted: 1987-11-17
Abstract: ABSTRACT OF THE DISCLOSURE         An improvement is provided in the compression molding of lignocellulosic composite articles, such as particle or flake board, in which polyisocyanate binder systems are employed, the improvement being the provision of a copolymeric reaction product of a functional poly-siloxane and a monocarboxylic acid or metal salt thereof as release agent on the mold surfaces to give multiple release.          Optionally organopolysiloxane fluid may be employed along with the copolymer as a diluent.
Patent CA-1233401-A (CA)
Inventor: MILLER RAYMOND H
IPC: F23D14/22
Filed: 1984-10-31
Granted: 1988-03-01
Abstract: POST-MIXED SPARK-IGNITED BURNER                       Abstract An assembly for a post-mixed burner wherein an inner conduit is electrified, is electrically isolated from a concentric housing and securely fixed relative thereto, with the simultaneous prevention of inadvertent fuel and oxidant mixing and prevention of outside forces disturbing the positioning of the inner conduit.
Patent CA-1231868-A (CA)
Inventor: ROBERTSON FORREST E
IPC: A01C5/06
Filed: 1984-11-14
Granted: 1988-01-26
Abstract: FURROW OPENER AND FOLLOWER BLADE            Abstract of the disclosure A  pair  of  circular,   furrow-opening disks, supported by separate, angularly oriented axles, rotatable simultaneously as a unit and converging to a leading zone of interengagement within the ground for preventing soil buildup therebetween, have a wedge-shaped, trailing blade, rigidly supported therebetween immediately ahead of materials gravitating into the furrow, and following at a greater depth, for slicing the series of unplowed scallops at the bottom of the furrow, clearing the furrow bottom of loose soil and forming a truly V-shaped, ridgeless, material-receiving apex compressed into a smooth, firm sidewall formation.
Patent CA-1254120-A (CA)
Title: Procedure for the detection of allergen-containing  housedust
Inventor: BISCHOFF EDELBERT
IPC: G01N33/52
Filed: 1984-12-05
Granted: 1989-05-16
Abstract: Abstract of the disclosure The invention relates to a procedure to establish the presence of allergen-containing housedust, as results when or after housedust mites occur, in which samples of dust present in buildings are thoroughly suspended in aqueous-alcoholic alkali metal hydroxide solution and, with the resulting extract, a color reaction using an aromatic diazo compound is carried out, the color reaction being evaluated in respect of its occurrence as an indication of the pollution of the dust with housedust mite residues.
Patent CA-1256179-A (CA)
Inventor: BREEMER JOHANNES
IPC: G01J3/46
Filed: 1985-02-04
Granted: 1989-06-20
Abstract: Title:          Device for detecting differences in color.     ABSTRACT:         A device for detecting differences in color of a material to be inspected, which device comprises a first light source emitting light of a first color and a second light source emitting light of a second color, an optical system adapted to project portions of the light emitted both by the first and the second light source onto first and second spaced apart measuring regions respectively, each measuring region being associated with means for measuring the amount of light reflected by the material. The device further comprises electronic switching means for alternately energizing the first and the second light source, means for transporting the material, means for controlling the intensity of the second light source in dependence upon the measured amount of reflected first light source light, and means for determining a difference in color from the measured amounts of reflection.
Patent CA-1256505-A (CA)
Inventor: CRIMMINS JAMES W
IPC: H04M1/737
Filed: 1985-03-18
Granted: 1989-06-27
Abstract: ABSTRACT        An FM communication system in which AM modulation, applied to narrowband FM modulated signal, effects an improvement in power use and audio fidelity in portable units. By use of an AM scheme, radiated power is enhanced at frequency extremes to counteract the effects of narrowband FM systems while radiated power is minimized for low amplitude, modulating signals associated with limited carrier frequency deviations. As the amplitude of the signal to be transmitted decreases during quiet intervals, the power of the transmitted FM signal correspondingly decreases. A corresponding remote battery powered unit and a base unit are typically provided. Each includes an FM-AM transmitter. The power of the transmitted signal from the remote unit is adjusted according to the signal level received from the first unit, to compensate for signal levels lost over long distances and avoid unnecessary power drain for short distances and low information content situations. The system typically utilizes infrared light as the transmission medium. Pulse activation of infrared emitting diodes with the FM-AM modulated signal to provide limited range and thus privacy.