baber/WOPTO huggingface dataset:
Patent CA-1058339-A (CA)
Inventor: SWALLOW RONALD J
IPC: G06F3/14
Filed: 1975-12-08
Granted: 1979-07-10
Abstract: Abstract of the Disclosure A system of display terminals each receiving from an image generator edges which commonly represent a selected two-dimensional projection of three-dimensional objects. Each edge is defined by its intended position on a two-dimensional screen and by attributes for a portion of the screen adjacent the edge.  These attributes may include color, brightness, shading and the like. Each display terminal has an edge memory which stores a set of edges ordered by the y-coordinate of their tops and are partially x-ordered.  The stored edges are de-coded into scanline segments, each segment being the scanline interval between two adjacent edges intersecting that scanline.  Each segment is defined by its intended position on the display screen and by its other attributes such as color and brightness.  The segments are sub-sequently decoded into video raster points, each point being defined by its position on the display screen and by attributes such as brightness and color.  Since only edges are transmitted from the image generator to the terminals, as opposed to a video raster, a relatively low capacity communication link can be used.  Since edges are buffered at each display terminal, rather than video raster data, the edge memories inside the terminals need not be excessively large.  The conversion of edges to segments and of segments to video raster is fast and efficient, and allows flickerless display of complex color images.
Patent CA-1091605-A (CA)
Inventor: BEARDEN ROBY JR
IPC: C10G45/04
Filed: 1975-12-30
Granted: 1980-12-16
Abstract: ABSTRACT OF THE DISCLOSURE     In an improved process for the combined desulfurization and hydroconversion of various sulfur-containing petroleum oils, the feedstock is contacted with an alkali metal or sodium hydride in a conversion zone maintained at specified conditions such that the feedstock is both desulfurized and subjected to significant hydroconversion.  This is particularly demonstrated by significant reductions in the 1,050°F+ fraction of the feedstock, as well as significantly decreased Conradson carbon and increased API gravity.  In addition, the deep demetallization and moderate denitrogenation of the feedstock is also achieved. These important results are obtained by maintaining the conversion zone at temperatures of above 750°F, and in the presence of sufficient added hydrogen pressure in the conversion zone of between about 1500 and 3000 psig.
Patent CA-1041092-A (CA)
Inventor: SHIELDS R JAMES III
IPC: C08F8/00
Filed: 1976-02-05
Granted: 1978-10-24
Abstract: Abstract of the Disclosure A paper sizing agent which is the reaction product of starch or polyvinyl alcohol with a Diels-Alder adduct or such adduct reacted in turn with another compound.
Patent CA-1068024-A (CA)
Title: Abs composition having improved impact strength and weather aging resistance and latex suspension process therefor
Inventor: CORNELL ROBERT J
IPC: C08F279/02
Filed: 1976-03-22
Granted: 1979-12-11
Abstract: ABSTRACT    Disclosed is a novel polybutadiene or butadiene-styrene co-polymer based gum plastic having excellent impact strength and weather aging resistance and a method for its preparation.  The ABS composition of the invention is a matrix of a polymer of at least on monoethylenically unsaturated monomer and a graft co-polymer comprising a graftable rubber substrate which is formed from a mixture of a pre-crosslinked polybutadiene or SBR spine latex, and a low-gel elastomer which has been at least partially cross-linked during the preparation of the product.  Within certain ratios of cross-linked spine to low-gel spine, significant improv-ments in impactt strength and weather aging resistance are achieved. In the method of preparation, the latex, monomers and low-gel elastomer, are converted directly to the final product by a con-ventional suspension polymerization process.
Patent CA-1093734-A (CA)
Inventor: SCHELHAAS EALBERTUS W
IPC: C09D11/10
Filed: 1976-04-22
Granted: 1981-01-13
Abstract: Abstract of the Disclosure A printing ink which rapidly dries under the influence of heat, in particular from infra-red radiation, and which is composed of:      - a non-polar solvent, - a modified phenol- or cresol formaldehyde resin, - a crosslinkable unsaturated polyester, - a peroxide catalyst for said polyester, and - a pigment.
Patent CA-1068858-A (CA)
Inventor: SEELYE JOHN F
IPC: B29C65/00
Filed: 1976-05-11
Granted: 1980-01-01
Abstract: APPLICATION FOR               LETTERS PATENT          FOR        METHOD AND APPARATUS IMPROVEMENTS IN REMOVING ARTICLES FROM WHEEL BLOW          MOLDING MACHINES     ABSTRACT OF THE DISCLOSURE In removing articles from a wheel-type blow molding machine continuously revolving in a vertical plane with multiple mold sections opening radially to the wheel axis out of which the articles are ejected sidewise downwardly onto a takeaway pocket conveyor, apparatus improve-ments including a screw adjacent the conveyor rotating in synchronism with the pockets and extending forward and rearward of the delivery end of the conveyor, a cooperating holding and guiding rail plus a cam for urging moil portions of the articles into the screw channel out of the pockets. The process involves positioning the articles in the pockets such that the moils protrude laterally of the conveyor, capturing such moils within the spiral screw channel while still advancing within the pockets, then pivoting such captured articles downwardly to a vertical attitude beyond the conveyor by means of the screw and forward twisting contour of the guide rail.     Inventor: John F. Seelye
Patent CA-1066823-A (CA)
Inventor: WYSS ROBERT J
IPC: C02F3/20
Filed: 1976-06-02
Granted: 1979-11-20
Abstract: DIFFUSER DEVICE     ABSTRACT OF THE DISCLOSURE:  A diffuser device for use in disseminating air or other gaseous fluid under pressure comprising a frame including end portions longitudinally spaced apart by and interconnected to the respective extremities of rigidifying strip means which function therewith to de-termine the configuration of said frame,  An elastomeric material is applied to peripherally encompass the frame and define therewith an interior diffuser chamber.  Such material is provided throughout the extent thereof with a multitude of extremely fine punctures producing therein microscopic ruptures so minute as to be self-sealing.          The ruptures are generally imperceptible in absence of an interior pressure in said chamber sufficient to stretch the elastomeric material about the microscopic ruptures.          Means defines an inlet to the diffuser device for direct-ing fluid under pressure to the interior of said chamber to be diffused through microscopic ruptures in said material stretched under the influence of the pressure thereof, whereby to provide that the fluid under pressure will issue from the diffuser device in the form of fine needle-like jets.
Patent CA-1062874-A (CA)
Inventor: SHIKINAI TADAOMI J
IPC: A61C13/00
Filed: 1976-06-08
Granted: 1979-09-25
Abstract: Abstract of Disclosure A pattern set-up especially useful for making prosthetic dental appliances is assembled by attaching a plurality of refractory casts to a support member so that adjacent casts along the length of the support member are cir-cumferentially offset with respect to one another.  The casts carry expendable patterns that are connected to the support member by gating systems laid down on faces of the casts.  The support member has outward protrusions supporting the weight of the casts and may be formed by a plurality of segments fitted together in end-to-end relation.
Patent CA-1048863-A (CA)
Inventor: PORTER ROBERT E
IPC: D05B27/04
Filed: 1976-10-06
Granted: 1979-02-20
Abstract: WORK FEEDER FOR SEWING MACHINE                     Abstract of the Disclosure Disclosed is an improved top feed arrangement for cooperation with a conventional lower feed dog of a sewing machine, the lower feed dog cyclically engaging and disengaging the lower surface of material to be sewn in order to move that lower surface along a predetermined path through and past the sewing machine.  The top feed arrangement comprises an upper feed dog carried by an arm that is pivotally linked to the drive means causing the cyclical movement of the lower feed dog.  The arm is connected to those drive means at one end in a pivotal connection and the upper feed dog is carried at the other end of the arm.  Biasing means bear against the arm at a location inter-mediate the upper feed dog and the pivotal connection to the drive means.  A lifter means, responsive to the drive system that actuates the sewing machine needle, periodically moves the upper feed dog in a direction away from the lower feed dog against the force of the biasing means.  Preferably, the arm which carries the upper feed dog is guided for movement in a vertical plane by a first bearing surface of the arm engaging a vertical confining surface of the sewing machine frame and a second bearing surface engaging a confining surface of the biasing means.
Patent CA-1055311-A (CA)
Inventor: ETTRIDGE JOHN P
IPC: F01C1/02
Filed: 1976-11-02
Granted: 1979-05-29
Abstract: ABSTRACT     A rotary machine operable as a pump, compressor, motor or internal combustion engine, the machine having a rotor orbiting but not rotating within a chamber in a housing, vanes separating the space within the chamber into working chambers.  The rotor is eccentrically mounted on a rotatable shaft, the rotor being guided by lobes on the rotor operating in shaped recesses in the housing.  The vanes are vane assemblies biassed outwardly into contact with the chamber wall, and include a plurality of vane blades to give a labyrinth seal effect.
Patent CA-1092472-A (CA)
Inventor: THOW GEORGE B
IPC: A61B17/00
Filed: 1977-02-03
Granted: 1980-12-30
Abstract: Abstract of the Disclosure This invention provides a percutaneous gastrointestinal tube which may be surgically inserted into the pa?ient's stomach and then threaded downward into the intestine to provide both intestinal stent plication, ant independently controllable gastric and/or intestinal decompression.  The subject gastrointestinal tube preferably has two decompression lumens ant two inflatable cuffs.  One decompression lumen extends the full length of the tube and is vented at the distal end to provide decompression to the lower portion of the intestine, the other decompression  lumen is vented so as to decompress the stomach.  One inflatable cuff is located near the distal end to facilitate the threading of the tube into the small intestine, ant the other inflatable cuff is positioned in the stomach at the inner surface of the incision to help seal the incision ant to prevent the inadvertent partial withdrawal of the subject tube.
Patent CA-1112740-A (CA)
Inventor: MANAKA NOBUZI
IPC: F02D41/14
Filed: 1977-02-11
Granted: 1981-11-17
Abstract: ABSTRACT OF THE DISCLOSURE:           In an air-fuel ratio control system for an internal combustion engine, there is provided a switching circuit for switching the control mode of the system to a closed loop mode when the output of an exhaust gas sensor exceeds a reference voltage and to an open loop mode when the output of the exhaust gas sensor falls below the reference voltage.          The switching circuit comprises a circuit for changing the reference voltage for starting and terminating the feedback control at different voltage levels of the exhaust gas sensor, thereby to rapidly switch the control from the open loop mode to the closed loop mode as soon as the temperature of the exhaust gas sensor has increased to its normal operating temperature and to rapidly switch the control from the closed loop mode to the open loop mode as soon as the engine begins to idle.
Patent CA-1094819-A (CA)
Inventor: FUGLEBERG SIGMUND P
IPC: C22B19/00
Filed: 1977-02-24
Granted: 1981-02-03
Abstract: ABSTRACT OF THE DISCLOSURE     A hydrometallurgical process for the recovery of zinc, copper, and cadmium from their ferrites by treating the ferrites under atmospheric conditions in a sulfuric acid-bearing solution in the presence of potassium, sodium, or ammonium ions at 80-105°C in order to precipitate, as jaro-site, the iron present in the ferrites, separating a jaro-site-bearing solid from the solution, feeding the solution to a neutral leach stage, to which acid and calcine are also fed and from which a solution containing zinc, copper, and cadmium is recovered and feeding the ferrite-bearing solid to the ferrite treatment stage, and recycling a portion of the jarosite-bearing solid obtained from the ferrite treatment stage to the process.
Patent CA-1075854-A (CA)
Inventor: GRIBENS JOEL A
IPC: A61K9/12
Filed: 1977-02-25
Granted: 1980-04-22
Abstract: Abstract of the Disclosure Certain fluorinated dimethyl ethers have been found to posses the stability, the compatibility and sufficient freedom from deleterious phsiological effects to be used as aerosol propellants in cosmetics, hygenic, pharmaceutical and other personal products.  These compounds, bis-(difluoro-methyl) ether and perfluorodimethyl ether, are also free of the chlorine atoms believed responsible for some destruction of ozone in the upper atmosphere.
Patent CA-1071812-A (CA)
Inventor: HASHIMOTO SHIGETOSHI
IPC: B24B19/00
Filed: 1977-03-14
Granted: 1980-02-19
Abstract: ABSTRACT OF THE DISCLOSURE     An apparatus for automatically polishing the cathode mother plate (hereinafter called mother plate) stripped of the electrolytically deposited metal in an electrolytic metal recovery system.  The apparatus comprises a lift means to lift the mother plate from the conveyor carrying vertically dis-posed mother plates having been stripped of the deposited metal in the previous step, and two polishing means disposed adjacent to the lift means for polishing both surfaces of the mother plates, whereby the mother plates are polished in a short period comparable to that required for stripping opera-tions, permitting the polishing apparatus to be built in the stripping system.
Patent CA-1074646-A (CA)
Inventor: TOPEL KENNETH D
IPC: F41G1/08
Filed: 1977-05-26
Granted: 1980-04-01
Abstract: IMPROVED PEEP SIGHT FOR ARCHERY                  Abstract of the Disclosure After a discussion of the structure and technique of use of conventional sighting apparatus used for archery bows, the sighting apparatus including a bow-mounted bow sight and a string-mounted peep sight, an improvement to the peep sight is disclosed which keeps the peep sight from rotating about the bow string when the bow string is drawn.  An elastic cord, such as a piece of flexible tubing, has one end fitted onto a pin extending from the peep sight and the second end fitted onto a block which itself is secured to the bow.  As the bow string is drawn, the elastic cord is stretched to exert a force upon the peep sight to align a sighting bore or "peep" therethrough with the bow-mounted bow sight.
Patent CA-1079520-A (CA)
Inventor: HAINES WALTER E
IPC: G01F23/04
Filed: 1977-10-05
Granted: 1980-06-17
Abstract: ABSTRACT OF THE DISCLOSURE          A dipstick assembly including a pressure relief valve comprising a handle member having a passageway extending therethrough between the ends thereof, a measuring blade con-nected to the handle member, a sealing device for perfecting a seal between the dipstick assembly and an access tube adapted to receive the assembly and a valve located within the passage-way of the handle member for maintaining a predetermined pressure within a vessel to which the access tube is connected.
Patent CA-1107901-A (CA)
Inventor: LOVELL PETER J
IPC: A42B3/06
Filed: 1977-12-16
Granted: 1981-09-01
Abstract: ABSTRACT OF THE DISCLOSURE     A helmet for the protection of sportsmen and/or workers in potentially hazardous occupations is disclosed.  In one embodiment the helmet comprises a protective head shell and means to position the helmet on a users head in which the head shell has an outer section slidably connected to an inner section.  The outer section is adapted to move relative to the inner section on impact with an object.  In another embodiment the helmet comprises an outer shell and cushioning means on the inside of the inner shell. The cushioning means includes an inner shell that is spaced apart from the outer shell and which is adapted to move relative to the outer shells. A plurality of projections is located between the two shells, each projection being integrally connected to one of the shells. The projections are elongated and substantially rigid and are adapted to flex when subjected to compressive force.
Patent CA-1095448-A (CA)
Inventor: MOSS JAMES R
IPC: B41J33/58
Filed: 1978-02-15
Granted: 1981-02-10
Abstract: Abstract of the Disclosure A ribbon tracking system includes guide means and roller means thereon which automatically tilts in the proper direction to correct for errors in tracking of the ribbon.  A crowned pulley is floatingly supported and journaled on a curved guide post or shaft wherein the pulley is caused to be axially moved along the post or shaft by reason of corrective forces, in a direction opposite the tracking error for correcting the attitude of the ribbon.
Patent CA-1097084-A (CA)
Inventor: CAVANAGH PATRICK E
IPC: C22B1/02
Filed: 1978-02-16
Granted: 1981-03-10
Abstract: ABSTRACT           A metamorphosed iron ore of the magnetite-hematite type is subjected to a programme of heat treatment in a controlled atmosphere to accomplish a frangible structure providing separability of the iron oxides from the other minerals thereof by cracking and weakening at crystal planes and boundaries, thereby adapting the modified ore for separation of the iron oxides from the other mineral content by low energy separation techniques.
Patent CA-1109667-A (CA)
Inventor: WEBSTER DAVID F
IPC: B41L1/20
Filed: 1978-03-01
Granted: 1981-09-29
Abstract: A B S T R A C T            A device for testing a persons ability to walk along a predetermined path, e.g. to test his sobriety if he were suspected of being under the influence of alcohol or a drug, in which a cover sheet has marked thereon the path to be walked along, the cover sheet being in overlying relation to a bottom sheet, a pressure sensitive marking material being positioned between the two sheets at a location only to mark that portion of the bottom sheet which is situated below the path indicated on the cover sheet.
Patent CA-1107179-A (CA)
Inventor: MAIFFREDY LIONEL
IPC: C21D9/52
Filed: 1978-03-13
Granted: 1981-08-18
Abstract: L'invention concerne un procédé d'élaboration d'un élément allongé en acier au carbone,  à résistance élevée par écrouissage.  On soumet l'élément allongé à une première opération de réduction de section, sensiblement jusqu'à la limite d'étirabilité, ensuite à un traitement thermique a une température comprise entre 400 et 600.degree.C pendant un temps allant d'une fraction de seconde à quelques minutes de façon à lui redonner une capacité d'étirabilité, puis à un refroidissement à température ambiante et à une deuxième opération de réduction de section effectuée à température ambiante.  L'invention s'applique en particulier à l'obtention de fils d'acier destinés au renfort de pneumatiques.
Patent CA-1099970-A (CA)
Inventor: RUSSELL LAWRENCE O
IPC: E01F15/00
Filed: 1978-03-13
Granted: 1981-04-28
Abstract: ABSTRACT OF THE DISCLOSURE          Dismountable barriers are provided which are readily assembled and dismantled, and consist of easily handled parts.  Front and rear rows of vertical horizontally elongated panels are linked end to end by locking bars which can also serve as fence standards, and cross members, preferably also linked to the panels by the locking bars, connect the rows.  The space between the panels is filled with sand, gravel or other fluent material, except that cross panels may prevent the cross members and locking bars from being submerged.  Short panels may be inserted between the elongated panels on one side of the barrier where it is necessary to form a bend in the latter.
Patent CA-1070221-A (CA)
Inventor: ERIKSSON JAN
IPC: A01G23/097
Filed: 1978-03-17
Granted: 1980-01-22
Abstract: ABSTRACT OF THE DISCLOSURE         This invention is  related to a device is an apparatus for processing trees comprising a grabbing device including at least two grabbing arms being movable toward and away from each other in order to grab a tree, one or more limbing members to limb the tree, at least two rolls to feed the tree through the apparatus and a severing device to severe the tree, said rolls being arran-ged on said grabbing arms in order to follow the grabbing arms in their movements towards and away from a tree movement path through the apparatus, said apparatus being connected to a crane arm through a rotational connection allowing pivotal movement of the apparatus relative to the crane arm in an essentially vertical plane, wherein the apparatus in addition is connected to the crane arm through a second rotational connection having an essentially ver-tical axis, about which the apparatus is rotatable in a suspended state by means of a drive means with said grabbing arms depending downwardly from  aid second rotational connection.
Patent CA-1049075-A (CA)
Inventor: LLOYD MICHAEL K
IPC: B60T17/18
Filed: 1978-03-22
Granted: 1979-02-20
Abstract: A B S T R A C T A brake system having spring applied fluid pressure released brakes is provided with an auxiliary source of pressure for release of the brakes and a valve that is locked into an inoperative position effective to thereby render it tamper-proof.
Patent CA-1103093-A (CA)
Inventor: SCHWING FRIEDRICH
IPC: F04B15/02
Filed: 1978-04-04
Granted: 1981-06-16
Abstract: ABSTRACT OF THE DISCLOSURE       A pump for conveying cement comprises two pump cylinders and reciprocating pistons, an input container, a multi-limb oscillating shutter valve arranged in front of the pump cylin-ders and below the input container, the housing of the valve including a suction connection leading from the input container, two ports connected to the pump cylinders respectively, and an outlet located in the end wall of the housing.  Two inlet ports are provided in the housing for placing the suction connection in communication with the ports connected to the pump cylinders respectively.  The oscillating shutter is mounted on a horizontal shaft to be movable between two positions, and includes two con-trol limbs, each controlling a different one of said inlet ports, and an outlet control limb the forward edge of which passes over and controls said outlet.
Patent CA-1096182-A (CA)
Inventor: BALTHES GARY E
IPC: A01D45/16
Filed: 1978-04-18
Granted: 1981-02-24
Abstract: ABSTRACT    A tobacco harvester comprises a pair of counter rotating defoliators overlying a pair of opposing spaced apart lateral transfer conveyors for conveying picked leaves outwardly from under the defoliators.  A pair of belts are driven in opposite directions, portions of which oppose and are spaced apart from one another along opposing portions of the pair of lateral conveyors.  The belt spacing is such to allow tobacco plant stalks to pass therebetween as opposing belt portions engage and support tobacco plant stalks.  Side conveyors receive picked leaves from the pair of lateral transfer conveyors.          The speed drives are arranged so that the rotary speed of the rotating defoliators, the conveying speed of the lateral conveyors, the conveying speed of the side conveyors and the linear speed of the belts are independently adjustable of one another.  A pair of speed indicators may be provided to visually indicate the respective speeds of the picking rate of the defoliators and the ground speed of the harvester.  The control devices are accessible to an operator while operating the harvester to permit matching of the two speeds to accomplish efficient mech-anical tobacco priming and thereby reduce field loss and leaf damage.