baber/WOPTO huggingface dataset:
Patent CA-1110411-A (CA)
Inventor: MOORE MCDONALD
IPC: D21C5/02
Filed: 1978-11-20
Granted: 1981-10-13
Abstract: ABSTRACT OF THE DISCLOSURE           The present invention relates to method and apparatus for recovering and recycling paperboard for reuse as pulp, more particularly re-pulping and re-using waste paperboard resulting from various packaging and other paperboard coverting processes, which paperboard has been, in such processes, impregnated with wax or resin for the purpose of imparting wet strength and imperviousness to liquid.          Essentially, the invention comprises process and apparatus for re-pulping the wax or resin impregnated paperboard in weak kraft black liquor produced in the conventional kraft cooking process and then washing the re-pulped material in a brown stock washer along with the virgin kraft pulp produced in the conventional cook, in order to clean the re-pulped material and recover and reuse the weak kraft black liquor used in the re-pulping process. When recovered by the process and apparatus of the present invention, such pulp can be uses in manufacture of corrugating medium and linerboard, for instance, for use in the manufacture of corrugated paperboard boxes.  The process and apparatus have economic value in the recovery of paperboard pulp from the waste product not only as the inherent benefit of using a material otherwise wasted, but also because the process liquid, weak kraft black liquor, is itself a relatively inexpensive by-product of the original virgin kraft pulping process and thus provides a low cost treatment liquid for the process of the invention when temporarily diverted from the kraft recovery process for that purpose.
Patent CA-1098440-A (CA)
Inventor: HAAFKENS RUDOLF
IPC: C09K8/62
Filed: 1979-03-05
Granted: 1981-03-31
Abstract: ABSTRACT OF THE DISCLOSURE          METHOD FOR FORMING CHANNELS OF HIGH FLUID CONDUCTIVITY IN FORMATION PARTS AROUND A           BOREHOLE     A method for forming channels of high fluid conductivity in relatively soft acid-soluble formation parts around a bore-hole penetrating such formation, said method comprising the sequential steps of: 1)   installing a casing in the well, and introducing in the wall of the casing a plurality of perforations arranged over at least part of the said wall where facing the formation; 2)   inducing in the formation a fracture communicating with the perforations and containing a viscous fluid; 3)   injecting an acid solution through the perforations into the fracture at a pressure at which the fracture remains open, the viscosity ratio between the viscous fluid and the acid solution being chosen such that the viscous fluid is displaced in the fracture in an unstable manner by the acid solution; 4)   continuing the injection of the acid solution through the perforations until channels have been etched in areas of the fracture walls that face each other; 5)   injecting a viscous carrying fluid carrying a propping agent through the perforations into the fracture at a pressure at which the fracture remains open, the viscosity of the carrying fluid being at least equal to the viscosity of the acid solution; 6)   continuing the injection of the carrying fluid and the propping agent until propping agent is present in the fracture between at least part of those areas of the fracture walls wherein channels have been etched; 7)   lowering the fluid pressure in the fracture, thereby allowing the fracture walls to be displaced to closing position, in which position the walls of the channels are supported by propping agent; and 8)   lowering the viscosity of the viscous fluids.
Patent CA-1136640-A (CA)
Inventor: GETSON JOHN C
IPC: C08G77/00
Filed: 1979-03-26
Granted: 1982-11-30
Abstract: ABSTRACT OF THE DISCLOSURE Modified organopolysiloxane compositions containing in situ genera-ted particulate matter and vulcanizable compositions containing them are pro-vided herein.  The in situ generated particulate matter is capable of being cross-linked with an organosilicon compound having an average of more than two hydrogen atoms per molecule in the presence of a catalyst capable of pro-moting the addition of silicon bonded hydrogen to silicon bonded vinyl groups.          The composition comprises vinyl-terminated organopolysiloxanes having a viscosity of from 10 to 10,000,000 centipoises at 25°C, which are free of hydrolyzable groups and having at least one polymeric organic group linked to the vinyl-terminated organopolysiloxanes through a carbon-to-carbon link-age in which the polymeric organic group is constituted of recurring units derived from at least one monomer having ethylenic unsaturation, the organic monomer is present in an amount of from 80 to 5 percent by weight and the vinyl terminated organopolysiloxanes are present in an amount of from 20 to 95 percent by weight based on the weight of the organic monomer and the vinyl-terminated organopolysiloxanes, the in situ generated particulate matter ranges from 10 to 500 microns in length and from 1 to 5 microns in diameter and is formed as a result of the free radical polymerization of at least one monomer having ethylenic unsaturation in the presence of the vinyl-terminated organopolysiloxanes.  The composition may be cured to an elastomeric solid by combining the composition obtained from the polymerization with organo-silicon compounds having an average of more than two hydrogen atoms per molecule and a catalyst which promotes the addition of SiH groups to vinyl groups.  These cured organopolysiloxanes have improved physical properties. They are useful in the preparation of elastomers, sealants, potting compounds, as coatings, and as molding compositions, especially where it is desired to keep shrinkage to a minimum.
Patent CA-1124669-A (CA)
Inventor: STANGELAND BRUCE E
IPC: C10G45/08
Filed: 1979-05-15
Granted: 1982-06-01
Abstract: BRUCE E. STANGELAND     SEQUENTIAL HYDROCRACKING AND HYDROGENATING      PROCESS FOR LUBE OIL PRODUCTION            ABSTRACT OF THE DISCLOSURE          UV-unstable hydrocrackate lube oil stock is improved by hydrogenating the stock at a temperature in the 200° to 300°C range using a hydrogenating component disposed upon an alumina carrier having a substantial pore volume of which a major portion is in pores having diameters in the 80- to 150-Angstrom range.
Patent CA-1134864-A (CA)
Title: Tetrahydronaphthalene synthesis
Inventor: ALEXANDER JOSE
IPC: C07C67/00
Filed: 1979-06-05
Granted: 1982-11-02
Abstract: TETRAHYDRONAPHTHALENE SYNTHESIS                   Abstract of tne Disclosure A process for synthesizing 5,8-dialkoxy-2-hydroxy-2-acetyl-1,2,3,4-tetrahydronaphthalene and 5,8-dibenzyloxy-2-hydroxy-2-acetyl-1,2,3,4-tetrahydronaphthalene.  These compounds are useful as intermediates in the synthesis of doxorubicin, daunomycin and their analogs.
Patent CA-1126918-A (CA)
Inventor: KAJI HISATSUGU
IPC: D01F9/32
Filed: 1979-06-25
Granted: 1982-07-06
Abstract: METHOD OF AND APPARATUS FOR MAKING PITCH FIBER INFUSIBLE     ABSTRACT OF THE DISCLOSURE           A method of producing carbon fiber by making infusible and carbonizing pitch fiber which is obtained by melt-spinning petroleum-tar pitch or coal-tar pitch, and a method of making pitch fiber infusible in an air atmosphere containing NO2, at an elevated temperature by introducing a cross-sectionally U-shaped tray with pitch fiber suspended from bars placed across an upper portion thereof into an infusible material producing furnace having gas exchanging chambers in the inlet portion and outlet portion thereof as well as at least two gas circulating means each of which comprises a combination of a blower or a fan and a heat exchanger, and retaining said tray in said furnace.
Patent CA-1097020-A (CA)
Inventor: MOEHLENPAH WALTER G
IPC: E04B1/49
Filed: 1979-07-09
Granted: 1981-03-10
Abstract: STRUCTURAL JOINT          Abstract of the Disclosure A structural joint comprising first and second wood members, the second member having one end engaging one side of the first member and extending generally perpendicularly to the first member.  The joint further includes a pair of substantially congruent, L-shaped members of commercial sheet steel or the like.  Each of the connectors has two legs with teeth struck therefrom and extending generally perpendicular to the plane of the connector.  The pair of connectors is driven into the wood members on opposite sides thereof at the inter-section of the wood members with the one leg of each of the connectors extending in opposite directions along the first wood member and with the other of the legs of the connectors facing one another on opposite sides of the second wood member.  All of the teeth in the legs of each connector are embedded in the wood members.
Patent CA-1118331-A (CA)
Inventor: UDALL WILLIAM S
IPC: B60C5/16
Filed: 1979-07-25
Granted: 1982-02-16
Abstract: 14.                     ABSTRACT IMPROVEMENTS TO TYRE AND WHEEL RIM ASSEMBLIES A tyre and wheel rim assembly in which the rim includes adjacent to the bead seat a circumferentially extending groove and the tyre bead has a radially and axially inwardly projecting toe the tip of which is engaged in the groove whereby the toe is flexible perpendicular to its length to allow tyre fitting, is substantially rigid in the direction of its length, and is provided with an abutment means on the axially inward surface of the bead toe to contact the rim upon rotation of the bead to assist in retaining the bead at its seat.
Patent CA-1140779-A (CA)
Inventor: KRUTENAT RICHARD C
IPC: B01J23/86
Filed: 1979-08-10
Granted: 1983-02-08
Abstract: ABSTRACT OF THE DISCLOSURE         A process, and the compositions produced thereby, wherein an element characterized as aluminum, silicon or chromium, notably aluminum, is alloyed in relatively small concentrations with iron, cobalt or nickel, notably iron or cobalt, or both, which have relatively high Curie temperatures.  Small amounts of yttri-um, hafnium, zirconium or lanthanum  can also be added.  Alloys of specified composition are formed into particles of selected size, and the particles then contacted in an atmosphere of con-trolled oxygen activity at elevated temperature over selected time periods to form an impervious oxide film of critical thick-ness.  The compositions may be used as such or as inclusions for the preparation of catalytic or non-catalytic magnetizable solids composites for use in magnetically stabilized fluidized beds for high temperature reactions such as hydro-forming processes or in use as fluid bed fly-ash filters.
Patent CA-1121161-A (CA)
Inventor: GOERNER JULIUS K
IPC: C03B35/14
Filed: 1979-08-14
Granted: 1982-04-06
Abstract: ABSTRACT            "Method of and apparatus for toughening or prestressing at least one of the simultaneously bent sheets of a sandwich type safety glass"            In a method of prestressing at least one of the individual glass sheets making up a sandwich safety pane, after the superimposed individual sheets have been bent in a bending zone of a bending furnace on a bending die conveyed through the furnace, the sheets are taken past a blow system, disposed in a zone of the furnace where the general temper-ature is above the transformation point of glass but below its deformation point, at least one of the individual sheets being subjected, by said blow system, to the action of cooling air over the entire surface of the sheet, at least on one side thereof.  In one embodiment, the top sheet of the superimposed bent sheets on the die is lifted from the die in the last-mentioned zone and is conveyed along an elevated path whilst the die proceeds below, the lifted sheet passing between upper and lower curved blow pipes supplying the cooling air to the upper and lower surfaces of the lifted sheet, which is thereafter placed in position again on the sheet or sheets remaining on the die, the latt-er then proceeding out of the furnace.
Patent CA-1078344-A (CA)
Title: Can filling apparatus and methods and apparatus and methods for controlling the feeding of wet materials thereto
Inventor: ROSS EDWARD E
IPC: B65B3/26
Filed: 1979-08-21
Granted: 1980-05-27
Abstract: CAN FILLING APPARATUS AND METHODS AND APPARATUS AND METHODS FOR CONTROLLING THE FEEDING OF WET MATERIALS THERETO                   Abstract Apparatus and methods for filling cans with mea-sured amounts of wet material, having improved methods and procedures for the conveying and controlling the feeding of such materials. The height of the column of material maintained in an upright tube of the can filling unit is controlled by an electrical probe assembly and associated electronic circuitry.  The probe of the assembly is posi-tioned above the column of material, and the arrangement is such that when it is contacted by the upper surface of the column, the associated circuitry effects a reduction in the feed of material to the column.
Patent CA-1113982-A (CA)
Inventor: MARTUCCI FRANK C
IPC: H01H43/30
Filed: 1979-09-26
Granted: 1981-12-08
Abstract: TIME VARIABLE THERMOSTAT                 ABSTRACT OF THE DISCLOSURE         A time variable thermostat for controlling a heater comprising, a temperature activated switch connected to the heater for deactivating the heater at a selected temperature having movable contact and at least one fixed contact, the movable contact being moved into abutment with the fixed contact when a temperature other than the selected temperature is reached to activate the heater and moved out of abutment with the fixed contact to deactivate the heater when the selected temperature is reached.  A temperature selection arm is connected to the movable contact and associated with a scale for selecting the temperature at which the movable contact is moved out of abutment with the fixed contact.  The thermostat further includes a clock motor having a shaft rotated once in 24 hours, a temperature selection disc centrally mounted on the shaft and in frictional contact therewith having a plurality of radially extending slots therein, and an arm engagement member slidable within each of the radially extending slots and in frictional contact with the disc for abutment against the temperature selection arm.  Each arm engagement member is positionable at a radial location along its associated slot which corresponds to a selected temperature.  A spring is provided  between the temperature selection arm and a fixed point on the thermostat for biassing the temperature selection arm against the arm engagement member.          The plurality of slots  are circumferencially spaced around the disc so that the temperature selection arm always abuts against at least one arm engagement member during the 24 hour period.
Patent CA-1140816-A (CA)
Inventor: YEARHAM BRUCE
IPC: C01F11/02
Filed: 1979-10-23
Granted: 1983-02-08
Abstract: Abstract of the Disclosure The invention provides a process for the production of treated lime, sometimes known as tempered lime, and a treated lime resulting from the process.  The material is particularly suitable for use in the desulphurisation of iron.  Lime in small lump form is comilled together with only from 0.1 to 0.5% by weight of a non-aqueous liquid surfactant, preferably a silicone surfactant of between 20 and 100 centistokes viscosity. The material is of enhanced flowability, having an angle of repose of between 38° and 30° and does not bridge or plug in the equipment employed to deliver it into the liquid iron bath.  The comilling may be by a hammer mill with the mixed material fed thereto by a worm screw conveyor mixer. The invention also provides a process for the desulphurisation of iron employing such  a treated lime material.
Patent CA-1138133-A (CA)
Title: Radiation dosimeter assembly
Inventor: SEIDEL JOHN G
IPC: G01T1/11
Filed: 1979-12-04
Granted: 1982-12-21
Abstract: -11-                   47,967 ABSTRACT OF THE DISCLOSURE          In a radiation dosimeter assembly consisting of a wafer-like radiation dosimeter in combination with a mechanical support member the radiation dosimeter is secured within an aperture of the support member by dis-posing a protective film on either side of the dosimeter and securing the film to the support member via a high temperature adhesive or high temperature adhesive film.          This assembly technique permits the annealing of the com-bination of the dosimeter and the support member to a temperature of about 300°C which is the typical process for "erasing" extraneous radiation dosage stored in the dosimeter prior to the use of the radiation dosimeter/ support combination for radiation measurements.  The capability of annealing the total combination permits stock piling of preassembled radiation dosimeter/support member combinations for extended periods of time.
Patent CA-1125975-A (CA)
Inventor: HEBERGER JOHN M
IPC: C08J7/044
Filed: 1980-01-04
Granted: 1982-06-22
Abstract: ABSTRACT OF THE DISCLOSURE      A polyester film coated with an antistatic coating is provided.  The film includes a polyester film support coated on one side with a latex coating.  The coating includes stearamidopropyldimethyl-.beta.-hydroxy-ethylammonium nitrate present in a concentration in the range of between about 2.75 percent and 3.25 percent by weight, based on the total weight of the latex coating.  The coating further includes a crosslinkable methylmethacrylate-ethylacrylate-methacrylamide terpolymer having a glass transition temperature in the range of between about 40° C and 50° C.  The terpolymer is present in a concentration in the range of between about 0.75 percent and 1.25 percent by weight, based on the total weight of the latex coating.  The weight ratio of the nitrate to the terpolymer ranges between about 2.75:1 to below 3:1.    A process for forming the above film is also disclosed.     In this process a latex coating of the composition described above is coated onto a uniaxially drawn polyester film support.  The uniaxially drawn film is then heated to drive off the water and thereafter the uniaxially coated film is stretched in a direction normal to that of the uniaxial drawn film.
Patent CA-1110488-A (CA)
Inventor: HADLEY STANTON T
IPC: A21D2/02
Filed: 1980-04-09
Granted: 1981-10-13
Abstract: ABSTRACT OF THE DISCLOSURE A "short dough" process for making dough for use in making bakery products, involving the addition of an L cysteine compound, an oxidizing agent comprising a bromate or iodate of sodium, potassium or calcium, and L-ascorbic acid, to the mixture of materials used to make the dough.
Patent CA-1150032-A (CA)
Inventor: WILSON KEITH E
IPC: E04D13/16
Filed: 1980-05-08
Granted: 1983-07-19
Abstract: ABSTRACT OF THE DISCLOSURE           A metal building insulation system facilitates the installation of insulation in the roof and walls of a building from the exterior of the building and employs channel members fitted over outwardly facing flanges on the structural members from the exterior of the building, the channel members having opposed side walls for receiving the structural members there-between and intermediate walls connecting the side walls.         At least one layer of insulating material is retained between successive structural members by means of projections extending outwardly from the side walls of the channel members and in-wardly facing flanges on the structural members.
Patent CA-1164484-A (CA)
Inventor: LOONEY JOHN H
IPC: B65H83/00
Filed: 1980-06-26
Granted: 1984-03-27
Abstract: ABSTRACT OF THE DISCLOSURE         An improved document registration system in a copier having a platen for exposing documents and a document registration edge at one end of the platen includes a plur-ality of spaced apart document transporting and aligning belts which extend across only a portion of the platen and over the registration edge so that documents which have been fed onto the platen are subsequently engaged by the belts and driven towards and registered against the registration edge.  The belts are adapted to be shorter than the platen and shorter than the smallest document being copied on the platen so as to be fully underlaid by the documents being copied to avoid show-around exposure of the belts.
Patent CA-1161942-A (CA)
Inventor: DE STERKE ARIE
IPC: G01N29/265
Filed: 1980-06-26
Granted: 1984-02-07
Abstract: Abstract of the Disclosure An ultrasonic flaw detection system is used for inspecting circumferentially welded joints in a pipeline.          The ultrasonic probes include crystals for directing and receiving longitudinal waves reflected from the pipe interior surface in order to measure the pipe thickness.  A gating device is timed on the basis of the measured pipe thickness and enables the angled crystals to receive transverse ultrasonic waves from weld defects and avoids recording reflections due to weld geometry.  In addition a manipulation device having a guide band positioned around the pipe and an accentric movable toward and away from the band may be used for clamping the carriage to the band.
Patent CA-1115719-A (CA)
Title: Process for the preparation of  4-hydroxycarbazole
Inventor: LAUER KARL
IPC: C07D209/88
Filed: 1980-07-14
Granted: 1982-01-05
Abstract: ABSTRACT            The present invention provides a process for the preparation of 4-hydroxycarbazole by the dehydrogenation of 1,2,3,4-tetrahydro-4-oxocarbazole, wherein the reaction is carried out under alkaline conditions, preferably in an aqueous alkaline solution, using Raney nickel as catalyst.
Patent CA-1119834-A (CA)
Inventor: COLUMBUS RICHARD L
IPC: B01L3/00
Filed: 1980-07-18
Granted: 1982-03-16
Abstract: CAPILLARY TRANSPORT DEVICE HAVING      CONNECTED TRANSPORT ZONES                           Abstract A device is disclosed comprising first and second capillary liquid transport zones provided by first and second pairs of opposing surfaces, the opposing surfaces of the sec-ond zone both extending from the same one of the paired sur-faces of the first zone.  The inlet to the second zone is a diverting aperture that is formed in such same surface and configured (i) to insure complete wetting of the second pair of surfaces by the liquid and (ii) to provide a cross-sectional flow-through area greater than about 0.2 mm2.
Patent CA-1161972-A (CA)
Inventor: WARNER BRADY
IPC: H04B7/212
Filed: 1980-09-09
Granted: 1984-02-07
Abstract: ABSTRACT OF THE DISCLOSURE      Apparatus for re-sequencing time division multi-plexed (TDM) data having frames each comprising a series of consecutive data words delivered to the apparatus at a specified rate and each data word representing one of a plurality of data channels interleaved within the frames, comprises a memory having the TDM data ap-plied to data input lines and having write address selection lines, read address selection lines, and data output lines a counter counting at the specified rate and having a plurality of address bit outputs for apply-ing a first sequence of addresses to the write address selection lines when the TDM data is written into the memory and for applying a second sequence of addresses to the read address selection lines when the TDM data is read out of the memory.  The counter includes first and second counting subsections with the first counting subsection counting at a first rate and indicating to which of the frames each said data word belongs, the first and second sequences being different from one another whereby the read out TDM data is re-organized so as to place a plurality of data words representing a single data channel into a contiguous block of time.