baber/WOPTO huggingface dataset:
Patent CA-1054357-A (CA)
Inventor: BLOUNT FLOYD E
IPC: E21B43/263
Filed: 1975-03-12
Granted: 1979-05-15
Abstract: METHOD AND COMPOSITION FOR TREATING A WELL TO PREVENT THE FORMATION OF SULFUR AND SCALE DEPOSITIONS            Abstract of the Disclosure This specification discloses a composition and method for treating a well that is used for producing sour gas having dissolved sulfur, and water containing scale-forming ions from a subterranean formation to remove and prevent the deposition of sulfur and scale in the well.  The composition is comprised of a mixture of a chemical that is capable of forming a polysulfide with hydrogen sulfide and sulfur and a complexing agent which is capable of complexing the scale-forming ions in the water.  The composition is circulated into and from the well and sulfur and scale are removed therefrom.
Patent CA-1045674-A (CA)
Inventor: JAPENGA RONALD J
IPC: G01R31/24
Filed: 1975-04-30
Granted: 1979-01-02
Abstract: GAS TUBE TESTER FOR BREAKOVER VOLTAGE AND LEAKAGE CURRENT            Abstract of the Disclosure The embodiment of the invention disclosed herein is directed to a gas tube tester which provides a pair of terminals for connection to the external electrodes of a cold cathode gas discharge tube.  The tester includes one circuit for applying a progressively increasing voltage across the discharge tube so that the breakover voltage of the tube can be determined, this breakover voltage being registered on a meter.  A second circuit is provided for testing the leakage current of the gas discharge tube within predetermined limits.  A leakage current corre-sponding to a one megohm internal resistance is sufficient to render conductive a programmable silicon controlled rectifier to give an indication of excessive leakage current.
Patent CA-1049650-A (CA)
Inventor: ISHIODORI MAKOTO
IPC: H04N5/93
Filed: 1975-06-05
Granted: 1979-02-27
Abstract: ABSTRACT OF THE DISCLOSURE             A high frequency band signal is separated from a demodulated video signal and then is supplied to a noise clipping circuit in which black peak portions of the signal exceeding a predetermined black signal level are clipped. The resulting clipped output is combined with a low frequency band signal also separated from the demodulated video signal by which a negative going overshoot noise caused at the beginning of the horizontal blanking period is eliminated, and accordingly the signal to the noise ratio is improved and disturbance of synchronization is avoided.
Patent CA-1042225-A (CA)
Inventor: TELETZKE GERALD H
IPC: C05F7/00
Filed: 1975-06-30
Granted: 1978-11-14
Abstract: ABSTRACT OF THE DISCLOSURE           A process for treatment and land disposal of sewage sludge which comprises heat treatment followed by biological digestion, anaerobic and/or aerobic, providing a fluid sludge suitable for distribution on land.
Patent CA-1058355-A (CA)
Inventor: GREENHALGH COLIN W
IPC: C09B29/09
Filed: 1975-07-31
Granted: 1979-07-17
Abstract: ABSTRACT OF THE DISCLOSURE            Process for the colouration of aromatic polyester textile materials which comprises ?applying to the said textile material by a dyeing, padding or printing process an aqueous dispersion of a dyestuff mixture consisting of:-(a) from 2% to 60% by weight (based on the total weight of dyestuffs in the mixture) of a water insoluble monoazo dyestuff, free from sulphonic and carboxylic acid group which is of the formula:-  Formula I   wherein Y is hydrogen, lower alkyl, optionally substituted phenyl or nitro; Z is nitro, cyano, optionally substituted phenyl, optionally substituted lower alkoxycarbonyl or carbonamido; T is hydrogen, optionally substituted lower alkyl or optionally substituted lower alkoxy;          W is an acylamino group of the formula:-  wherein X1 is hydrogen or lower alkyl, X2 is hydrogen or an optionally substituted hydrocarbon or heterocyclic radical, and A is a direct link or -O- or   and R1 and R2 each independently represent a hydrogen atom or an optionally substituted alkyl radical or R1 and R2 together form with the nitrogen atom N a 5- or 6-membered nitrogen-containing heterocyclic ring;               (b)  from 40% to 95% by weight (based on the total weight of dyestuffs in the mixture) of (i) at least one disperse anthraquinone dyestuff of the formula:-                 Formula II   which can contain up to 30% of its own weight of a disperse anthraquinone dyestuff of the formula:-              Formula III   wherein L and L1 each independently represent a phenyl radical which can be substituted by one or more chlorine or bromine atoms or by hydroxy, amino, lower alkyl, lower alkoxy, hydroxyloweralkoxy, N-lower alkylamino, acylamino, N:N-di (lower alkyl)amino, carbo lower alkoxy, lower alkoxycarbonyl or lower alkylcarbonyloxy groups; and (c)  from 0 to 50% by weight (based on the total weight of dyestuffs present in the mixture) of at least one yellow to red disperse dyestuff, whereby blue to black shades are obtained possessing excellent fastness to light and to wet treatments.
Patent CA-1066700-A (CA)
Inventor: MOUDRY RADOMIR
IPC: C01F5/12
Filed: 1975-09-02
Granted: 1979-11-20
Abstract: ABSTRACT OF THE DISCLOSURE           In a process for the preparation of lactam from cycloalkanone comprising reacting said alkanone with hydroxyl-amine sulfate to form the corresponding cycloalkanone oxime followed by Beckmann rearrangement to yield said lactam and neutralization of the sulfuric acid formed by ammonia whereby ammonium sulfate is formed as a byproduct, the improvement which comprises reacting said ammonium sulfate with an alkaline-earth metal oxide or hydroxide to form an alkaline earth metal sul-fate and ammonia, heating said alkaline-earth metal sulfate to decompose it into said alkaline-earth metal oxide and sulfur dioxide and/or sulfur trioxide, converting said sulfur dioxide and/or sulfur trioxide into sulfuric acid, whereby said sul-furic acid and said ammonia are capable of reuse in said process.
Patent CA-1046539-A (CA)
Inventor: ROCK FRANK C
IPC: G01G19/40
Filed: 1975-09-12
Granted: 1979-01-16
Abstract: Abstract of the Disclosure Highly accurate and versatile computing scale which is particularly suitable for postal use.  The platform of the scale is mounted on and supported by a single load cell in a system requiring no levers, pivots or other moving parts.  Weight readings are averaged on a moving average basis, and in one preferred embodiment the scale has an accuracy on the order of 1/32 ounce over a range of 70 pounds.  With no load on the scale, any drift is cancelled by increasing or decreasing the net weight reading in small increments during successive counting cycles to maintain an accurate zero reference.  The scale includes a keyboard through which a postal clerk can enter information about the destination and type of service desired, and a zip code to postal zone converter is included for automatically deter-mining the postal zone from the zip code.  Digital displays indicate the weight and postage to both the clerk and customer.  The scale can readily be interfaced with other machines such as postage meters and label/ticket printers so that output data from the scale is available to the other machines.
Patent CA-1067388-A (CA)
Inventor: BUCKLER ERNEST J
IPC: C08L25/06
Filed: 1975-10-22
Granted: 1979-12-04
Abstract: ABSTRACT OF THE DISCLOSURE Thermoplastic polystyrene laminates are disclosed, one of the layers of which comprises a filled polystyrene composition containing from about 5 to about 50 of filler, such as calcium carbonate, clay, asbestos, etc.  The filled polystyrene composition is prepared from a filled poly-styrene masterbatch of impact polystyrene, filler, rubber and mineral oil, cut back by mixing with other polystyrene, either crystal or impact polystyrene.  Laminates may be prepared by coextrusion.  The filled polystyrene layer may be foamed.  The laminates may be used for making formed articles such as cups, containers, trays, plates, sheets, etc.
Patent CA-1062266-A (CA)
Inventor: WHITE HOWARD L
IPC: C07D249/20
Filed: 1975-11-24
Granted: 1979-09-11
Abstract: PROCESS FOR THE PRODUCTION OF     Abstract of the Disclosure An improved process for the production of 2-aryl-2H-benzotriazoles by the reduction of o-nitroazobenzene intermediates with zinc in alkaline medium comprises em-ploying a ratio of moles of alkali to moles of o-nitroazo-benzene intermediate in the range of 0.2-1.7/1 in the presence of less than 150 ppm of iron based on zinc used. The improved process results in higher yields of high purity products with a concomitant reduction in the amount of undesired cleavage amine by-products and a reduction in effluent pollution problems.  The process is carried out in a polar/non-polar solvent mixture.
Patent CA-1082219-A (CA)
Inventor: INTILLE GEORGE M
IPC: C07C49/203
Filed: 1975-12-03
Granted: 1980-07-22
Abstract: Abstract of the Disclosure Allylic compounds are carbon-to-carbon coupled to substituted olefins by contacting the two compounds in the presence of a catalyst system comprising a Group VIII metal component, a bromine or iodine component, and a Group VA component.  The foregoing catalytic process also promotes the intra-molecular, carbon-carbon coupling of allylic and substituted olefin groups wherein both processes provide a method for producing sorbates and related compounds.
Patent CA-1060532-A (CA)
Inventor: BAR-ON ARI
IPC: B65H83/00
Filed: 1975-12-03
Granted: 1979-08-14
Abstract: ABSTRACT OF THE DISCLOSURE       A document handling system for use in a document reproducing machine includes  an endless belt conveyor for conveying original documents to the platen of the machine.  A magnetic sensor magnetically senses the speed of the photoreceptor drum of the machine and maintains the speed of a servomotor which drives the conveyor belt through a servo amplifier at the same  speed as the drum, whereby, in a first mode of operation the optics of the machine may be fixed and the original document may be driven across the platen at the speed of the drum.  A second larger motor may also drive the conveyor belt, in the alternative, at a higher speed through the servo-motor in a second mode of operation in which the original document is fed at high speed to the platen and there is held stationary and is scanned by moving optics.
Patent CA-1066466-A (CA)
Inventor: MCRAE WAYNE A
IPC: A61L15/42
Filed: 1976-01-14
Granted: 1979-11-20
Abstract: ABSTRACT OF THE INVENTION         The invention is directed to an open celled poly-urethane foam article  which initially is generally non-absorbent, the surface of which is subsequently rendered absorbent by decreasing the average pore cell size to a critical range while preferably also simultaneously or subsequently achieving a critical range of a wetting agent in such surface.  This can be accomplished in either of two ways.  The first method is to permanently collapse the cells in the surface region of the original foam  so that the concentration of any residual wetting agents initially present in the structure increases in the compressed surface region, thus rendering said surface more readily absorbent.  For a surgical dressing, the surface cells should be permanently but only partially collapsed to substantially less than the original size to form a microporous skin.  According to the second method substantially all residual wetting agents which may be present in the original foam material are extracted from the polyurethane either before or after forming the microporous skin surface.  Preferably, the extraction comes after formation of the skin so that a controlled amount of a desired wetting agent(s) can then be reapplied to the microporous surface for better controlling absorbency into the structure.  As the invention relates primarily to surgical dressings, a critical range  for the amount of wetting agent(s) and the average cell pore size in the collapsed surface have been found which are related to the wicking, absorbency rate, and non-adherence characteristics of the resulting structure.  These characteristics in turn are directly related to critical and measurable differences in the rate of epithelization, wound healing performance and wound healing quality.
Patent CA-1036707-A (CA)
Inventor: WONN JAMES W
IPC: G01N29/22
Filed: 1976-02-19
Granted: 1978-08-15
Abstract: MOISTURE INDICATING APPARATUS                  ABSTRACT OF THE DISCLOSURE A moisture indicating apparatus for indicating the presence of moisture in a vapor flow confined within a conduit.  Sonic energy generated within the conduit is de-tected at predetermined locations along the conduit by non-intrusively mounted detection devices.  The sonic energy is converted into an electrical signal and the magnitude of the electrical signal from each detection device and the time difference therebetween are compared to predetermined magnitude and time-difference standards.  If the electrical signals indicate the presence of moisture, responsive action is initiated by a suitable control arrangement connected to the apparatus.  In addition to indicating moisture presence, the quality of moisture with the vapor flow is detectable.
Patent CA-1071854-A (CA)
Inventor: VOLKERS STEWART W
IPC: B01F7/00
Filed: 1976-03-08
Granted: 1980-02-19
Abstract: ABSTRACT OF THE DISCLOSURE           A blender  for blending a mixture of flowable materials, such as the carrier and toner components of a developer for an electrostatic processor, comprises a rotatable chamber having radially angulated passageways extending through its periphery for guiding the materials into and out of the chamber.   The passageways are open, but the mixture tends to at least temporally dwell in the chamber and is, therefore, subjected to a tumbling action, because the radial angulation of the passageways exceeds the angle of repose of the mixture.   Continuous and dis-continuous blenders embodying these principles are disclosed.
Patent CA-1086907-A (CA)
Inventor: STOFKO JAN
IPC: D01C1/00
Filed: 1976-04-09
Granted: 1980-10-07
Abstract: Abstract of the Disclosure Defiberized lignocellulosic material, such as wood, is treated with a liquid carrier containing an oxidizing agent, and the wet mat thereof is subjected to pressure, and to heat for a sufficient period of time to cause an oxidative reaction among the fibers resulting in a strong interfiber bond.          Catalysts or other reaction modifying agents may be employed.          By virtue of the enhanced interfiber bonding effect t paper sheets, such as liner board, which are usually formed of delignified cellulosic material, the fibers of which are highly refined, can be formed totally or partially of less expansive sources of material such as ground wood, semi-chemical or semi-mechanical lignocellulosic pulps without sacrifice of strength.
Patent CA-1067027-A (CA)
Title: Process for maximizing the growth and nicotine degrading activity of microorganisms
Inventor: GRAVELY LAWRENCE E
IPC: C12P17/12
Filed: 1976-11-05
Granted: 1979-11-27
Abstract: PATENT APPLICATION                          OF        LAWRENCE E. GRAVELY  VERNON L. GEISS        and RICHARD P. NEWTON                  FOR               PROCESS FOR MAXIMIZING THE GROWTH   AND NICOTINE DEGRADING ACTIVITY       OF MICROORGANISMS                   Abstract of Disclosure A process is disclosed for maximizing the growth and nicotine degrading activity of microorganisms effective to degrade nicotine through a biochemical mechanism in which 3-succinoylpyridine is formed.  The process involves inocu-lating a nicotine-containing growth medium with the micro-organisms and subjecting the broth to aeration and agitation.          During the growth period, the broth should be maintained at a pH of between about 6 and 7.8 and at a temperature between about 10°C and about 45°C.  The broth should have an initial nicotine concentration of at least 0.5 mg. per ml. up to an amount which is toxic to the microorganisms.
Patent CA-1069349-A (CA)
Inventor: KOSIOREK RAYMOND S
IPC: H01G4/12
Filed: 1976-11-15
Granted: 1980-01-08
Abstract: Abstract of the Disclosure Metallizing compositions suitable for the production of fired on electrically conductive films which do not adversely af-fect the overall strength of heat resistant substrates are des-cribed.  The compositions comprise, in specified proportions, at least one finely divided electrically conductive metal, certain alkali metal, crystallizable, high silica glass frits as binder, inert liquid vehicle and, if desired, inert filler and/or pigment. The compositions are particularly suited to glass substrates and provide therewith composite structures having greater strength than that of the glass substrate.
Patent CA-1075662-A (CA)
Inventor: SHAH SUNIL C
IPC: B29B13/10
Filed: 1976-11-30
Granted: 1980-04-15
Abstract: FILM GRANULATOR            Abstract of the Disclosure The present disclosure relates to a size reduction apparatus such as a granulator and particularly to a novel feed assembly for such a granulator whereby thin plastic sheet material may be sucessfully granulated at high throughput speeds. The construction includes the use of a closed chamber mounted above the granulator chamber and having a longitudinally orientated feed slot therein, directly above which a pair of nip rolls are mounted so as to enable sheet material to be fed directly into the chamber of the granulating machine towards the rotor and in a generally radial direction thereto.          The device is operated while the chamber thereof is at least partly full of partially granulated material.  A baffle ex-tending from the upstroke side of such slot is positioned so as to downwardly extend into the chamber and approaching the rotor thereof so as to deflect partially granulated material carried by the rotational movement of the rotor from contacting the newly entering sheet material so as to prevent deflection thereof away from the rotor.
Patent CA-1056191-A (CA)
Inventor: FORREST ROBERT
IPC: A01B1/24
Filed: 1976-12-14
Granted: 1979-06-12
Abstract: ABSTRACT OF THE DISCLOSURE        A cross bar is provided with a pair of plug cut-ting tubes one at each end thereof and being edge sharp-ened at the lower edge.  Plug release cut away portions are formed in the tubes spaced above the lower ends.          The cross bar is secured to the underside of the shoes or boots against the heel step with each tube being si-tuated slightly outboard of the sides of the soles.          Walking on lawns or the like causes the plug tubes to cut cylindrical plugs from the lawn which are expelled-upwardly and outwardly through the plug release cut away portions.
Patent CA-1076903-A (CA)
Inventor: MAIN PETER L
IPC: F16D35/00
Filed: 1977-05-09
Granted: 1980-05-06
Abstract: ABSTRACT OF THE DISCLOSURE          "Improvements in and relating to fluid couplings"      A viscous shear fluid coupling comprising a first, annular, rotatable member and a second, rotatable member. The second member has an internal annular chamber in which the first annular member is received.  The first and second annular members have opposed radially extending surfaces in close-spaced relationship.  Viscous coupling fluid is provided in said chamber for transmitting torque from one member to the other member upon rotation of the one member as a driving member to rotate the other member as a driven member.  At least one groove is provided across each said radially extending surface of the driving member.  The radially inner end of each groove leads the radially outer end of that groove in the direction Or operational rotation of the driving member.  This causes the viscous coupling fluid to be pumped towards the periphery of the driving member upon rotation of the driving member in the latter direction.
Patent CA-1083455-A (CA)
Inventor: DUNN KARL L
IPC: A61M25/06
Filed: 1977-05-13
Granted: 1980-08-12
Abstract: Abstract of the Disclosure Needle restraining apparatus is provided which serves to prevent a stylet needle of a venipuncture device which fits telescopically within a catheter of the venipuncture device from longitudinally moving with respect to the catheter during venipuncture.  In one embodiment, the needle restraining apparatus provides a collar constructed of heat-shrinkable plastic releasably conforming to a needle hub and the hub of a tube adaptor of the venipuncture device.  The collar is shrunk so that the leading and trailing ends of the collar form a non-slip fit over the irregular contour of the hub of the tube adaptor and the hub of the stylet needle.  In a second embodiment of the invention, the collar is constructed of rigid plastic and preformed to engage the hub of the tube adaptor of the device and the hub of the stylet needle thereby preventing longitudinal movement of the stylet needle relative to the catheter.  Structure is provided whereby the collar can be easily released to permit removal of the stylet needle from the venipuncture device after a venipuncture has been made.
Patent CA-1048080-A (CA)
Inventor: LAWRENCE DEAN M
IPC: E05C3/14
Filed: 1977-05-18
Granted: 1979-02-06
Abstract: LATCH ASSEMBLY     A B S T R A C T      A latch assembly for selectively retaining a movable portion of a vehicle.  The latch assembly includes com-ponents readily sub-assembled prior to installation of the latch assembly in the vehicle.  A main plate member having a tee-shaped slot and having a tubular spring retainer is provided for receiving a latch member, a coil spring and a roller member.  The latch member is equipped with a pivot pin.  A pair of brackets, each having a sleeve portion, are provided for receiving the latch member pivot pin and for positioning the latch member with respect to the plate member.  A retainer plate, having a plurality of apertures alignable with corresponding apertures in the brackets and plate member, is welded to the vehicle for clamping the latch assembly upon the vehicle proximate to the portion to be retained.
Patent CA-1069285-A (CA)
Inventor: STOLLER FREDERICK L
IPC: D06M17/00
Filed: 1977-06-07
Granted: 1980-01-08
Abstract: 25,448 METHOD AND APPARATUS USEFUL IN CONTROL OF EDGE UNIFORMITY IN NONWOVEN FABRICS                     Abstract of the Disclosure A nonwoven fabric is passed to a compression zone wherein the edge portions of said fabric are compressed to produce a nonwoven fabric with a uniform thickness.
Patent CA-1075081-A (CA)
Inventor: UESUGI HISAO
IPC: F04D29/42
Filed: 1977-07-29
Granted: 1980-04-08
Abstract: PUMP UNIT            Abstract of Disclosure:    A pump unit is disclosed which is used in feeding liquid in pipe line.  The unit comprises a motor section and a pump section axially coupled with each other.  The pump section includes a volute casing in which an impeller is rotatably mounted on an extended shaft of the motor and a cover plate having suctioning opening is attached to the volute casing in such a manner that it is radially adjustable to the casing at the time of installation, whereby the align-ment of the suctioning opening with the impeller is made easy.  The construction of the casings and parts related thereto are designed so that the elements involved are pos-sible to be produced out of sheet metal stock.  Further, the air ventilation system of the motor section is designed so as to prevent the entrance of liquid, rain or water droplets into the inside of the motor.
Patent CA-1095996-A (CA)
Inventor: CHIRON GEORGES
IPC: H05B6/78
Filed: 1977-08-17
Granted: 1981-02-17
Abstract: Abstract of the Disclosure Microwave heating apparatus especially useful for heating and curing reinforced thermo-hardenable synthetic resins is disclosed.  Heating cells are formed by parallel-epipedal enclosures, the walls of which are odd multiples of 1/4 the wavelength of electromagnetic energy being util-ized for heating.  Adjustment means for adjusting the en-closure to minimize reflected power are mounted within the enclosure.  A production line comprises a series of successive heating cells that are supplied from the same power source; die structures between the cells can be used to form the material being processed.