baber/WOPTO huggingface dataset:
Patent CA-1110118-A (CA)
Inventor: BHATIA CHANDRAKANT
IPC: D05B55/14
Filed: 1979-04-24
Granted: 1981-10-06
Abstract: DRIVE MECHANISM FOR SEWING MACHINES     ABSTRACT           A Cardan gear mechanism carrying a pinion gear means in a cantilevered manner such that a work performing means secured thereto can be reciprocated along its major axis.  The pinion gear assembly is balanced with respect to load vectors and generally with respect to moment.  The main drive shaft is balanced with respect to both load vectors and moment.
Patent CA-1111466-A (CA)
Inventor: HART JAMES E
IPC: B60T15/42
Filed: 1979-05-02
Granted: 1981-10-27
Abstract: NEW POPPET VALVE TYPE BRAKE CONTROL VALVE DEVICE       ABSTRACT OF THE DISCLOSURE    A brake control valve device for a railway vehicle having a service valve piston assembly subject to a pressure differen-tial between the brake pipe and a single reservoir acting on a first piston and to brake cylinder delivery pressure acting on a second piston of the assembly.  A brake pipe reduction actuates the service valve assembly, toward service application position, in which position, the single reservoir pressure is connected to a pilot chamber of a brake cylinder exhaust control valve for actuating a brake cylinder exhaust valve to its closed position, while concurrently, connecting the single reservoir pressure to the car brake cylinders.  Pressure limiting means is provided to assure that sufficient pressure remains in the single reservoir following a full service or overreduction application for the purpose of providing additional braking pressure during an emergency brake application.     In the event the brake pipe reduction is only due to a pressure transient of short term duration, the service valve assembly is capable of dissipating sufficient reservoir pressure to counteract such brake pipe transient and accordingly prevent its movement to service application position.
Patent CA-1108967-A (CA)
Inventor: WALL LESLIE W
IPC: B23D45/04
Filed: 1979-05-30
Granted: 1981-09-15
Abstract: ABSTRACT OF THE DISCLOSURE             Precise adjustment in the angular relationship between the converging paths of a pair of rotary saw blades, is accommodated by the pivotal mounting of each motor driven saw blade assembly on an adjustment support plate carried by a common base fixed to the cabinet frame of a miter saw machine. The support plates are angularly adjustable about pivot pins having vertical axes perpendicular to the pivotal axes of the saw blade assemblies and intersecting the rotational axes of the saw blades.
Patent CA-1113761-A (CA)
Inventor: UBERBACHER EDWARD C
IPC: G02B6/38
Filed: 1979-06-25
Granted: 1981-12-08
Abstract: OPTICAL FIBER CONNECTOR APPARATUS                     Abstract An improved optical fiber connector is described in which the necessity for tight tolerances on concentricity, sleeve diameters and sleeve bores is eliminated.  A hous-ing means is provided which has a central axial cavity extending therethrough.  Optically transmissive fibers are inserted into one end of the housing and extend out-wardly from the other end thereof.  The fiber is affixed to the housing so that the free end is at a fixed distance from a reference surface on the housing.  A longitudinally slidable fiber support and shroud means surrounds and slid-ingly supports the free end of the fiber.  Resilient mount-ing means contacts the sliding support and shroud means to urge it outwardly from the housing.   A  connector has a flared guide surface with an opening of a dimension greater than the internal dimension of the guide surface so that the free end of the fiber is guided and received within the connector.  The connector has means for abutting the sliding support as shroud means and forcing the same back-ward against the urging of the resilient means so that when the housing and shroud assembly are brought into en-gagement with the connector the wall surfaces of the flared guide surface means contact and guide the free end of the fiber into accurate placement within the guide surface means.
Patent CA-1117603-A (CA)
Title: Automatic channel selection
Inventor: KLEIN THEODORE J
IPC: H04B17/19
Filed: 1979-06-21
Granted: 1982-02-02
Abstract: AUTOMATIC CHANNEL SELECTION     Abstract of the Disclosure HF and VHF radio channels which are subject to time-varying propagation anomalies and to interference are arranged in groups according to frequency band.  Within each group are several channels, each spaced sufficiently close so that they experience essentially the same propagation.  The several channels in each group are continuously measured to find which channels have the least ambient energy levels, then one of those channels is selected in a random manner to transmit data.
Patent CA-1109686-A (CA)
Inventor: CARSON MILES T
IPC: F24D11/00
Filed: 1979-07-19
Granted: 1981-09-29
Abstract: ABSTRACT          A self-contained service module incorporates a water cooled internal combustion engine as a primary power source which drives a low-pressure, high-volume forced air ventilation system; a water cooled, high-pressure air compressor, and an alternator.          Large diameter steel tubing is utilized as a basic framework for the system and provides a dual function by supporting the pri-mary components of the system and by serving as a reservoir for the high-pressure air.  A heat exchange radiator is provided to remove heat from the engine and air compressor cooling liquid and heat the low-pressure air in the ventilation system.  When heated air is not required, the radiator is moved to a second position so that air passing therethrough is exhausted from the unit and fresh air at ambient temperatures is provided by the ventilation system.
Patent CA-1131835-A (CA)
Title: Elastomer with improved heat and oil  resistance based on modified chlorinated  polyethylene
Inventor: RIM YONG S
IPC: C08F255/02
Filed: 1979-09-06
Granted: 1982-09-14
Abstract: ABSTRACT OF THE DISCLOSURE           COPOLYMER ELASTOMER WITH IMPROVED HEAT AND OIL RESISTANCE BASED ON MODIFIED CHLORINATED POLYETHYLENE    A chlorinated polyethylene elastomer or resin is modi-fled by graft copolymerization with acrylic ester type of monomeric material, having a glass transition temperature of not greater than 6°C, in an amount sufficient to provide an ester group (-COO-) content of from 25 to 40% by weight, to yield a mixed copolymerizate vulcanizable to a heat and oil resistant elastomeric state.
Patent CA-1128168-A (CA)
Title: Method of installing magnetic sensor  loops in a multiple lane highway
Inventor: BLIKKEN WENDELL A
IPC: E01F11/00
Filed: 1979-11-01
Granted: 1982-07-20
Abstract: Abstract of the Disclosure A method of installing an electromagnetic sensor loop in a multiple lane highway for monitoring vehicle traffic which includes the steps of placing a test loop at a desired location in a highway traffic lane approximately centrally thereof and varying the lateral dimension of the test loop until the field strength generated thereby at the lane edge is such that the loop will reliably distinguish between a vehicle in the lane in question and a vehicle in the next adjacent lane.
Patent CA-1132709-A (CA)
Inventor: HERWIG WARREN E
IPC: G01B7/32
Filed: 1979-11-07
Granted: 1982-09-28
Abstract: METHOD AND APPARATUS FOR MEASURING AREA TRAVERSED BY VEHICULAR IMPLEMENT     ABSTRACT OF THE DISCLOSURE A system for indicating area traversed by a vehicular implement has a ground speed sensor for generating ground speed pulses at a frequency which is a function of the implement ground speed; a pulse generator for deriving fixed width pulses from said ground speed pulses; an integrator for accumulating the fixed width pulses to derive a positive slope dc signal whose instantaneous magnitude is an analog of distance traveled by the implement; a comparator for comparing the analog signal to a reference signal whose magnitude is an inverse function of the width of path traversed by the implement and for providing an output signal when the former becomes equal to the latter, whereby the output signal indicates that the implement has traversed an area equal to the distance traveled multiplied by the path width; and a counter for registering and displaying the number of out-put signals as an indication of area traversed. Preferably the width of the pulses applied to the inte-grator can be selectively varied by the implement operator to compensate for differences in gear ratios or wheel and tire sizes of different implement models.
Patent CA-1144294-A (CA)
Inventor: DE WITT WALTER G III
IPC: A61F13/15
Filed: 1979-11-29
Granted: 1983-04-05
Abstract: ABSTRACT OF THE DISCLOSURE           This invention concerns  a nonwoven fabric particularly adapted for use as a diaper coverstock.  The fabric consists essentially of fibers and a binder wherein at least 50%, by weight, of the fibers are hydrophobic fibers.  The binder comprises a water insoluble, hydrophobic, emulsion copolymer of ethylenically unsaturated monomers comprising (A) 1 to 8% by weight of a monoethylenically unsaturated carboxylic acid, or a mixture thereof, (B) 50 to 75% by weight of a C4 to C8 alkyl acylate or a mixture thereof, and (C) 20 to 49% by weight of methyl methacrylate, stryrene, .alpha.-methyl styrene or a mixture thereof.  The fabric has sufficient wet tensile strength for use as a diaper coverstock.
Patent CA-1125169-A (CA)
Inventor: PRODELL RITA C
IPC: G01N33/564
Filed: 1979-12-06
Granted: 1982-06-08
Abstract: ABSTRACT OF THE DISCLOSURE         A new and immunochemically useful reagent is dis-closed for the detection of rheumatoid factors (RF) in Human blood, plasma, serum or synovial fluid in agglutination reac-tions, together with a new clinical diagnostic test and test slide using said reagent. The reagent consists essentially of a supply of red cell stroma having absorbed upon their sur-face a sensitizing agent.  Preferably the red cell stroma is sheep red cell stroma, and most preferably the sensitizing agent is rabbit anti-sheep red cell globulin.  This reagent has the advantage of overcoming the disadvantages associated with the SCAT test and also of the latex fixation test by providing a test as specific as the SCAT by having a sensitivity comparable to that of the FII latex fixation test.
Patent CA-1124040-A (CA)
Inventor: WALTER KARL H
IPC: C05D1/00
Filed: 1979-12-18
Granted: 1982-05-25
Abstract: ABSTRACT          The preparation of dry, stable granular material from water-soluble potassium and ammonium salts and a mixture thereof by subjecting a dispersion of crystals of the salt in an aqueous liquid to the action of a granulating device in the presence of calcium sulphate hemihydrate and a hydrophilic surface active agent to effect agglomeration of said crystals, and thereafter subjecting the agglomerated crystals to a drying operation.
Patent CA-1140883-A (CA)
Inventor: LEE WOOYOUNG
IPC: B01J29/00
Filed: 1980-02-28
Granted: 1983-02-08
Abstract: Abstract:            A method for converting methanol to gasoline which allows for the removal of reaction heat and the conversion of methanol to hydrocarbons to be achieved efficiently is provided.  The dense fluid bed is filled with vertically positioned half-pipe sections to maintain desired hydraulics and restricted bubble growth. Provision is made for cooling recycled catalyst and regenerating a portion of the catalyst used in the system.
Patent CA-1145289-A (CA)
Inventor: VOLKAMER KLAUS
IPC: C07C7/08
Filed: 1980-03-06
Granted: 1983-04-26
Abstract: Abstract of the disclosure:  A process for isolating a con-jugated diolefin from a C4- or C5-hydrocarbon mixture con-taining the diolefin, by single-stage or multi-stage extractive distillation using a selective solvent, wherein the selective solvent is a solvent mixture which comprises (a) from 50 to 98 percent by weight of an N-alkyl-substituted lower aliphatic acid amide or of an N-alkyl-substituted alicyclic acid amide having 5 ring members and (b)  from 2 to 50 percent by weight of an aliphatic ether boiling at from 30°C to 200° of the general formula R-O-R', where the aliphatic radical R is a hydrocarbon radical of 1 to 6 carbon atoms and the aliphatic radical R' is a hydro-carbon radical of 2 to 6 carbon atoms, or a dialkyl ether of a dihydric alcohol boiling at from 30°C to 200°C, of the general formula R1-[OCH2-CHR-]nOR2, where R is hydrogen or CH3, R1 and R2 are each a hydrocarbon radical of 1 to 5 carbon atoms, and n is an integer from 1 to 3, or an ali-cyclic ether boiling at from 50°C to 125°C.
Patent CA-1140904-A (CA)
Inventor: LASKER MARTIN L
IPC: F21V7/04
Filed: 1980-03-14
Granted: 1983-02-08
Abstract: ABSTRACT OF THE DISCLOSURE            In a lighting fixture, a light source is partially surrounded by a reflector system mounted in a housing to direct light from the light source out through an aperture in the front of the housing.  The reflector is cylindrically and parabolically shaped to provide a cut-off above a selected vertical angle and to provide a decreasing intensity with decreasing vertical angles from a maximum intensity to effect uniform distribution.  A lens is provided in the aperture to achieve uniform distribution through a wide horizontal angle.  The reflector system and the light source are pivotable within the housing about a fixed horizontal axis to adjust the vertical cut-off angle and the angle of the maximum intensity.  A fixed reflector is mounted near the top of the aperture on the front wall of the housing to get more sideways distribution of the light when the light source is pivoted toward the back of the housing.  The lens is provided with vertically extending ribs to achieve horizontal distribution without effecting the vertical distribution or vertical cut-off characteristics achieved by the reflector system.
Patent CA-1085623-A (CA)
Inventor: JOHNSON PAUL H
IPC: C22B3/00
Filed: 1980-03-24
Granted: 1980-09-16
Abstract: Abstract of the Disclosure.         A technique is provided for leaching particulate ores for recovering metal values.  Ore is crushed to less than about one inch with at least 25% being greater than 4  mesh.  The crushed ore is mixed with a small amount of acid and the moistened mixture is kept in a curing pile for about two days for dehydration and induration of the ore.  The induration is sufficient that the ore can sustain the weight of a thin layer of about one-half to one meter thick without appreciable compact-ing.  The indurated ore is spread on a permeable substrate in a thin layer about one-half to one meter thick.  A leaching solution is then percolated through this thin layer to remove the metal values.  The intitial effluent leach liquor has high metal values and low acid content and is passed to a solvent extraction system where the metal values are recovered.  The solvent extraction raffinate, which is high in acid, is re-circulated as a leach liquid.  Leaching of the thin layer is essentially countercurrent since progressively leaner leach liquids are used.
Patent CA-1146434-A (CA)
Title: Applicateur pour le massage du  revetement cutane
Inventor: GUERET JEAN-LOUIS H
IPC: A46B9/06
Filed: 1980-04-18
Granted: 1983-05-17
Abstract: La présente invention concerne un applicateur, utilisable pour le massage du revêtement cutané. Sur au moins une face active de cet applicateur sont prévus des picots saillants en matière souple élastiquement déformable. L'applicateur est caractérisé par le fait que sa face active comporte au moins deux sortes de picots ayant sensiblement la même configuration mais de dimensions différentes: d'une part, des picots de petite section transversale et, d'autre part, des picots de plus grande section transversale, les picots de petite section transversale étant régulièrement alternés avec les picots de grande section transversale.
Patent CA-1144865-A (CA)
Inventor: PENNINGTON KEITH S
IPC: H01L27/14
Filed: 1980-04-23
Granted: 1983-04-19
Abstract: Abstract A color facsimile transmission apparatus wherein a beam of white light is dispersed into component colors by a prism.  The color dispersed bands of illumination are focused to irradiate a portion of a moving document.  The reflected, colored light from the document is focused on the surface of three charge coupled devices (CCDs) so that the red illu-minating band irradiates a first CCD and the green and blue bands respectively irradiate the second and third CCDs.  The movement of the document causes each line of the document to scroll through the illuminating band over each of the CCDs.  The CCDs are operated in the time delay and integration mode to generate charge packets corresponding to the picture elements of the red, green and blue component line images of each line of the document.
Patent CA-1137902-A (CA)
Inventor: EMPEY RICHARD A
IPC: C12P19/06
Filed: 1980-05-29
Granted: 1982-12-21
Abstract: TITLE OF THE INVENTION          HIGH PHOSPHATE PROCESS FOR MAKING LOW CALCIUM, SMOOTH FLOW XANTHAN GUM            ABSTRACT OF THE DISCLOSURE          A novel process is described for making a low calcium xanthan gum exhibiting smooth flow properties which comprises the use of high levels of phosphate in the fer-mentation medium.
Patent CA-1133397-A (CA)
Inventor: NELSON FREDERICK W
IPC: A61B7/02
Filed: 1980-07-04
Granted: 1982-10-12
Abstract: 65,146 CAN/CAB                        Abstract A two-microphone stethoscope chestpiece is disclosed wherein the locking mechanism for securing the shaft within the body of the chestpiece against axial movement and the indexing mechanism for aligning the shaft with the selected microphone are combined into a single spring having a C-shaped portion and a leg extending axially from one end thereof.  The spring is positioned partially within grooves in the shaft and partially within corresponding slots in chestpiece body.  Upon rotation of the shaft, the leg portion of the spring clicks into one of two opposed slots in the chestpiece body and secures the shaft in proper alignment with the selected microphone.
Patent CA-1161120-A (CA)
Inventor: ALFANO ROBERT R
IPC: A61C19/04
Filed: 1980-08-20
Granted: 1984-01-24
Abstract: METHOD AND APPARATUS FOR DETECTING THE PRESENCE OF CARIES      IN TEETH USING VISIBLE LUMINESCENCE                 ABSTRACT OF THE DISCLOSURE        A method an apparatus for detecting the presence of caries in human teeth using visible luminescence.  A region to be examined is excited with a beam of monochromatic light. The intensity of the visible light emitted from the region is measured at two predetermined wavelengths, one where the intensity dependence on the spectra is about the same for caries and noncaries and the other where the relative intensity increases significantly in the presence of caries.  A signal corresponding to the difference in the two intensities is obtained and then displayed.  By first determining the magnitude of the difference signal at a nondecayed  region, any increases in the magnitude as other regions are probed indicate the presence of caries. The invention is based on the discovery that the visible luminescence spectra for decayed and nondecayed regions of a human tooth are substantially different and that the differences are such that visible luminescence from teeth can be used to detect the presence of caries.
Patent CA-1159161-A (CA)
Inventor: KING MONROE L
IPC: H01J37/317
Filed: 1980-09-09
Granted: 1983-12-20
Abstract: APPLICATION FOR UNITED STATES PATENT            METHOD AND APPARATUS FOR CONDUCTING HEAT          TO OR FROM AN ARTICLE BEING TREATED UNDER VACUUM            Abstract of Disclosure A method and apparatus are disclosed for providing heat conduction between an article being treated in a vacuum and a support member by providing a gas under pressure of about 0.5 to 2.0 Torr between the article and the support member.          The method and apparatus are described for use in a semiconductor wafer ion implantation system wherein the wafer is clamped to the support member which is cooled.   A seal can be provided between the wafer and the support member adjacent the periphery of the article.
Patent CA-1139928-A (CA)
Inventor: DRAKE EVELYN N
IPC: C09K8/502
Filed: 1980-09-16
Granted: 1983-01-25
Abstract: SHEAR THICKENING FLUID (C-833) ABSTRACT OF THE DISCLOSURE           The instant invention is directed to shear thick-ening fluids which comprise a water swellable granular material (clay) present in sufficient quantity so as to be capable of rapidly forming a stiff paste, having a strength of at least 2000 lbs/100 ft.2 upon interaction with the aqueous phase used, a nonaqueous hydrophobic material com-prising a hydrocarbon material and a surfactant and/or a strengthening agent, and an aqueous solution comprising water and a water-soluble/water-swellable polymer, wherein the granular clay and water-polymer solution are kept separated the intervening hydrocarbon-surfactant compo-sition. Discrete particles of granular clay are encapsulated in the oil phase and individual droplets of water-polymer are also encapsulated in the oil phase resulting in an oil continuous phase composite.  The intervening oil phase pre-vents the interaction between the water-polymer and the granular clay phases and results in a stable, nonreacting, pumpable composite until such time as the oil envelope is ruptured by application of a sufficiently high shear force. Upon such rupture, the materials interaot resulting in the semi-rigid high strength paste.         Various well control problems as such as oil and gas blowouts, can be controlled by use of the above-described composite.  The composite is pumped down the well pipe.  Exiting the orifices of the drill bit supplies the shear force needed to rupture the oil envelope thereby permitting the interaction between the clay and the water-polymer resulting in the formation of the semi-rigid paste having a strength of at least 2000 lbs/100 ft,2 which seals The unwanted flow or flow channels either in or immediately adjacent to the wellbore.
Patent CA-1152649-A (CA)
Inventor: BATES CHARLES A III
IPC: H03M7/00
Filed: 1980-09-23
Granted: 1983-08-23
Abstract: ABSTRACT OF THE DISCLOSURE    A method and apparatus for encoding binary data in a data stream so as to increase the number of data bits represented by one transition, such as a transition recorded on a magnetic medium, and thereby increase the storage density.  The data stream is converted into words each having m bits.  Two of the data words are stored so as to be simultaneously accessible to a converting system that converts the data words into code words wherein each code word has n bits.  In the invention, m/n=2/3.  In order to increase the space between adjacent transitions, the conversion is carried out according to a scheme wherein all code words have at least one binary ONE and lack successive binary ONEs except certain cases in which a code word is converted to all ZEROs to avoid ONEs in the nth bit of a given code word and the first bit of the code word following the given code word. Also described is a decoding method and apparatus for recovering the encoded data and decoding it to the original binary data.
Patent CA-1157323-A (CA)
Inventor: STALEY RONALD W
IPC: B32B19/00
Filed: 1980-10-03
Granted: 1983-11-22
Abstract: ABSTRACT OF THE DISCLOSURE    An electrical insulation materia1 comprising a B-staged hydrocarbon elastomer impregnated mica paper is described.  This material combined with a glass scrim and a plurality of polymeric sealing layers pro-vides electrical insulation tape with superior properties.          The conformable mica insulation tape is characterized by high flexibility, high conformability, and improved elec-trical insulating and stability properties.  Upon wrapping to such things as electrical coils and subsequently curing, the tape provides excellent electrical properties and high heat resistance.  The tape is sealable and especially adapted to stringent, for example, high temperature environments.