baber/WOPTO huggingface dataset:
Patent CA-1101449-A (CA)
Inventor: FAIRCHILD JACK R
IPC: E21C29/02
Filed: 1978-11-15
Granted: 1981-05-19
Abstract: ABSTRACT OF THE DISCLOSURE     A continuous mining machine comprising a central longitudinally extending conveyor assembly, a pair of cutting and conveying mechanisms mounted on the forward end of the central conveyor assembly for move-ment between a normal operating position wherein the cutting and conveying mechanisms are in alignment and extend laterally outwardly with respect to the forward receiving end of the conveyor assembly and a transport-ing position wherein the cutting and conveying mechanisms are in parallel relation alongside the central potion of the conveyor assembly, the cutting and conveying mechanisms having vertically movable endless track assemblies operable to more the continue ous mining machine when the cutting and conveying mechanisms are in the transporting position, and a pair of mine floor-to-roof anchoring canopy units for (1) advancing the continuous mining machine sot that the cutting and conveying mechanisms are moved inwardly of the working face, (2) facilitating the installation of mine roof bolts at positions close to the working face while affording roof protection to the operators, and (3) effecting a 90° turning movement of the continuous mining machine.
Patent CA-1134549-A (CA)
Inventor: GROSS BILL B
IPC: C08F220/12
Filed: 1978-11-21
Granted: 1982-10-26
Abstract: CARBOXYLATED VINYL PYRROLIDONE COPOLYMERS       Abstract of the Disclosure Copolymers of at least two acrylate monomers such as isobutyl methacrylate and 2-ethylhexyl acrylate, an or-ganic acid or acid anhydride, and N-vinyl-2-pyrrolidone are prepared by emulsion polymerization.  The polymer is then coagulated and dried, and dry resin is mixed with a water miscible coalescing solvent and a volatile amine. The amine-treated resin is water reducible and when used as a coating resin produces coatings of unusual water re-sistance and adhesion to metal surfaces.
Patent CA-1118155-A (CA)
Inventor: RAIBLE DONALD A
IPC: A61L27/44
Filed: 1979-01-25
Granted: 1982-02-16
Abstract: AN IMPLANT DEVICE          Abstract An implant device comprising a biocompatible carbon substrate (1) which is substantially non-porous and nonbiodegradable having at least its exterior coated with collagen (3).  Such an implant device may be used as a tissue grafting substrate, a tissue or blood vessel replacement or a covering or sealing means for implantable prosthetic devices.
Patent CA-1117300-A (CA)
Inventor: POTTER OWEN E
IPC: F23K1/04
Filed: 1979-02-09
Granted: 1982-02-02
Abstract: Abstract:        The invention resides in an electrical power generation system comprising means for burning solid carbonaceous fuel, such as brown coal, to generate heat energy which is used to convert water to steam, turbine means driven by the said steam for producing electrical energy, and solid carbonaceous fuel drying means, wherein moist fuel is indirectly heated by steam in the drying means in the absence of introduced air or other gases, whereby water vapour substantially free from air or other gases is driven off from the fuel for further use and the dried fuel is passed to the burning means.  Preferably, the solid carbonaceous fuel drying means is in the form of a fluidized bed in which the fluidizing medium is water vapour.  Further, the fluidized bed may be indirectly heated by saturated steam which transfers heat to the solid carbonaceous fuel and becomes condensed.
Patent CA-1122230-A (CA)
Inventor: ELLIS JEFFREY R
IPC: C04B24/38
Filed: 1979-03-28
Granted: 1982-04-20
Abstract: ABSTRACT         The water retentive properties of dry-set mortars containing water retentive agents such as cellulose ethers can be improved by the addition of small amounts of a promoter material such as ethylene glycol, diethylene glycol, propylene glycol, 1,3-propane diol, glycerol monoacetate and diacetate, ethyl glycolate and mono- and di-ethanol amines.
Patent CA-1103969-A (CA)
Inventor: LAIPENIEKS JURIS
IPC: B28B17/02
Filed: 1979-04-02
Granted: 1981-06-30
Abstract: METHOD AND APPARATUS FOR CONTROLLABLY RECYCLING THE SOLIDS CONTENT OF THE EFFLUENT FROM AN ASBESTOS-CEMENT PRODUCTS FORMING PLANT                Abstract of the Disclosure Waste water effluent from online production machinery and/or clean-off water from shut-down machinery is deposited in a settling tank in which the solids settle out.  Water, relatively clear of the solids, is returned to the production plant.  A slurry containing a high concentration of these solids is, depending on the percentage of solids, either returned to the production machinery via a slurry tank or returned to the settling tank for further concentration. The degree of concentration of solids in the slurry tank is carefully controlled in order to permit the addition of these otherwise wasted solids to the virgin asbestos-cement slurry in the various production machineries.  This addition of the otherwise wasted solids is carefully monitored at each of the production machinery installations in order to provide proper quality control of the product produced thereby.  This system may further include an effluent level sensor in the settling tank in order to optimize the clarity of the clean water return as well as a pH control system which can be used to aid in precipitating out the various dissolved solids, and to chemically condition the various fluids in the effluent return system, resulting in improved quality control of the asbestos-cement end product.
Patent CA-1128082-A (CA)
Inventor: STUMPF WALTER
IPC: B65G47/90
Filed: 1979-05-03
Granted: 1982-07-20
Abstract: ABSTRACT            A reciprocating transfer mechanism having grippers for grasping and extracting a row of upholstery spring coils from a coil feeder and thrusting the coils into a spring assem-bly machine in a continuous composite coil-reorienting delivery movement which simultaneously conditions alternate grippers for the succeeding transfer cycle without reorientation there-of on the return movement.
Patent CA-1079865-A (CA)
Inventor: KAWAGOE HIROTO
IPC: G11C11/40
Filed: 1979-05-15
Granted: 1980-06-17
Abstract: SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE     COMPOSED OF INSULATED GATE FIELD-EFFECT TRANSISTORS            Abstract of the Disclosure In a semiconductor integrated circuit device composed of insulated gate field-effect transistors, the improvement comprising the facts that the insulated gate field-effect transistors having gate insulating films of substantially equal thicknesses are arranged on a principal surface of a semiconductor substrate in the shape of a matrix, that gate input columns of the transistors are formed of polycrystal silicon layers, and that some of the transistors are made the enhancement type, while the others are made the depletion type.  Further, the respective transistors are formed by the self-alignment technique which employs the polycrystal silicon layers as a diffusion mask, and the depletion type transistors are formed by implanting impurity ions opposite in the conductivity type to the substrate into selected areas of the surface of the substrate.  Thus, a read only memory in a MOS-IC chip has its occupying area reduced remarkably.
Patent CA-1134175-A (CA)
Title: Device for determining the pore water pressure  in a soil
Inventor: TORSTENSSON BENGT-ARNE
IPC: G01V9/02
Filed: 1979-05-18
Granted: 1982-10-26
Abstract: Abstract A device for measuring pore water pressure in soils employs a pore pressure sound as a sensing member and a closed measuring system for creating the least possible disturbance in soils having a low degree of permeability, such as clay. The closed liquid-filled measuring system comprises a hypodermic needle type of connection between the pore pressure sound and a measuring device, said needle being operative to penetrate a member of resilient material to extend into a liquid-filled chamber in said pore pressure sound and transfer a reading of the pore water pressure to said measuring device.
Patent CA-1117004-A (CA)
Inventor: HARVEY A HERBERT
IPC: E21B43/24
Filed: 1979-06-04
Granted: 1982-01-26
Abstract: Abstract of the Disclosure A method for electrical resistance heating of select portions of a natural underground reservoir, in a geologic formation, that contains both crude oil and water.  Through selective resistance heating, oil viscosity is reduced in the select portion of the reser-voir.  Thus, portions which would not normally be con-tacted by injected fluids may be rendered susceptible to recovery by water flooding or other recovery process.          Thermal expansion of heated oil also facilitates oil recovery.  Resistance heating is accompanied by injec-tion of low resistivity liquid that functions both as a conductor, through which current passes into the select portions, and as a medium for displacing oil to a pro-duction well.  The low resistivity liquid also conveys convective heat, which contributes to viscosity reduction.          Alternatively, the method of the invention can be used for altering the drainage pattern of a well.
Patent CA-1114223-A (CA)
Inventor: BERG DAVID A
IPC: A01B59/06
Filed: 1979-06-08
Granted: 1981-12-15
Abstract: DRAFT ARM EXTENSION STOP                ABSTRACT OF THE DISCLOSURE A lower draft arm extension link stop is provided in a tubular member of a lower draft arm of a three-point hitch for engaging the extension link in its extended position.  A latch is formed on the tubular member of the lower draft arm to engage the extension link to its operating position.  The extension link stop engages a hook on the extension link to operate as a safety catch when the latch is released.  The extension link stop prevents the extension link from becoming completely disengaged from the tubular member.  A clearance on a hook, on the front end of the extension link is provided so that it can be assembled when the link is angled in a somewhat vertical position relative to the tubular member of the lower draft arm.  Once the hook is moved forwardly of the stop, the extension link is lowered to a coaxial position with the tubular draft member and then moved forwardly to latch in the operating position.
Patent CA-1127365-A (CA)
Inventor: JENNRICH GEORGE J
IPC: B30B15/00
Filed: 1979-06-14
Granted: 1982-07-13
Abstract: ROLLS FOR COMPACTING MILL    ABSTRACT OF THE DISCLOSURE        Rolls 9, 10 for a compacting mill 5 by which finely divided agglomerative material 6 is compacted into a sheet 7 produce a pattern of slots 23 in the opposite surfaces of the sheet 7 whereby the sheet is encouraged to fracture into tablet-like bodies 8 of uniform size and shape.  The slots 23 are de-fined by uniformly spaced ridges 21 on the rolls 9, 10, the ridges 21 on one roll 9 or 10 extending transversely to those on the other roll 10 or 9.  Preferably the ridges 21 extend circumferentially on one roll 9 and axially on the other roll 10.  A form for the ridges 21 is described that enables their easy and complete withdrawal from the slots 23 in the sheet 7 and encourages the sheet 7 to fracture on the medial plane of every slot 23.
Patent CA-1114843-A (CA)
Inventor: LEFTIN HARRY P
IPC: C10G9/36
Filed: 1979-06-20
Granted: 1981-12-22
Abstract: In the production of lower olefins by steam cracking normally liquid hydrocarbons at very short residence times, the formation of coke deposits in cracking furnace tubes is minimized by the addition of a low-coking hydrocarbon to fresh feed having a high coking tendency.
Patent CA-1124216-A (CA)
Inventor: KUGIMIYA KAZUYA
IPC: B32B27/32
Filed: 1979-06-29
Granted: 1982-05-25
Abstract: ABSTRACT OF THE DISCLOSURE         This invention relates to an improved packaging multilayer bag structure having superior transparency and hot tack property as well as superior heat seal strength, impact strength, heat resistance, strength and oil resistance.  The bag structure has at least two laminated layers, the innermost layer being composed of a random copolymer of ethylene and an alpha-olefin having 5 to 10 carbon atoms, said copolymer having the fol-lowing characteristics:  (1) it has an ethylene content of 99.5 to 94 mole %, (2) it has a melt index at 190°C of 0.1 to 20, preferably 0.5 to 10, (3) it has a density of 0.915 to 0.940 g/cm3, preferably 0.920 to 0.935 g/cm3, (4) it has a p-xylene-soluble content (A) at 25 C of 0.5 to 5% by weight, (5) it has a boiling n-heptane-insoluble content (B) of not less than 8% by weight to less than 20% by weight, and (6) the total of (A) and (B) is not more than 20% by weight.
Patent CA-1133853-A (CA)
Title: Article for the dispensing of volatiles
Inventor: HYMAN SY
IPC: A61L9/12
Filed: 1979-07-16
Granted: 1982-10-19
Abstract: ARTICLE FOR THE DISPENSING        OF VOLATILES       ABSTRACT OF THE DISCLOSURE          An article for the slow release of volatilizable sub--stances, such as deodorizers, insecticides, repellants and the like, the article being formed from opposed outer and inner wall members joined along their peripheral portions to define a central reservoir portion for receiving and confining a volatile substance The inner and outer wall member comprises a liquid non-porous but gas permeable flexible polymeric sheet material having an imper-meable barrier layer releasably bonded to the outer surfaces thereof.  In one embodiment the article is formed from a single strip folded and bonded to itself to form the reservoir.  The barrier layer prevents escape of volatilized substance until its removal at the time of desired use.  In a further aspect, a strippable adhesive layer is bonded to the outer surface of the second gas impermeable layer and removal of the stripable layer enables adhesive bonding of the article to environmental surfaces.
Patent CA-1109743-A (CA)
Inventor: KROLL WALTER
IPC: F24C5/00
Filed: 1979-09-25
Granted: 1981-09-29
Abstract: Abstract of Disclosure An oil stove for burning both waste oil and heating oil has a primary combustion chamber for the initial combustion of fuel and an adjoining secondary combustion chamber of larger diameter in which combustion is completed. The two chambers are located in  a housing and a fan is arranged at the bottom of the housing for delivering air to the inside of the housing. The air is warmed by its passage between the walls of the housing and the primary and secondary combustion chambers and is discharged for heating purposes via louvres at the top of the housing.            The primary combustion chamber is defined by a pot having air inlet openings in its sidewall, a substantially closed base, a burner ring located towards the upper end of the pot and a closed jacket surrounding the pot spaced from said sidewall. In operation a pool of fuel is formed at the base of the pot and a part of the fan delivery is ducted to the space between the closed jacket and the pot for supplying air for the combustion process.            Dual fuel operation is enabled by the intentional forced cooling of the base plate defining the closed base of the primary combustion chamber and accumulated sediment from the burning of waste oil can be cleaned from the base plate via an access tunnel leading into the primary combustion chamber.
Patent CA-1137114-A (CA)
Inventor: ONOPCHENKO ANATOLI
IPC: B01J27/045
Filed: 1979-09-25
Granted: 1982-12-07
Abstract: Abstract Nitroaromatic hydroxy substituted acetylene compounds wherein both the nitro and acetylene groups are directly connected to aromatic ring carbon atoms are hydrogenated in an inert solvent to selectively reduce the nitro function over a ruthenium disulfide catalyst.  of particular interest is the preparation of aminophenyl-acetylene from nitrophenyl hydroxy substituted acetylene.
Patent CA-1111460-A (CA)
Inventor: BLAIR W ROSCOE
IPC: F16L25/00
Filed: 1979-11-07
Granted: 1981-10-27
Abstract: FLANGED CORNER CONSTRUCTION AND METHOD            Abstract of the Disclosure A three dimensional corner fixture for a flexible joint or the like is prepared from a continuous belt or strip of flexible flat material.  The strip is partially slitted from an edge, and an insert is secured between the opposed edges of the slit to allow the material to substantially conform to the shape of a flanged corner, preferably with a leg or tab extending from the insert and secured at least through the radius at the corner.
Patent CA-1155247-A (CA)
Title: Melanges de polymeres a usage medical
Inventor: PUSINERI CHRISTIAN
IPC: A61L33/06
Filed: 1979-12-14
Granted: 1983-10-11
Abstract: L'invention concerne des compositions polymériques, utilisables notamment pour la réalisation d'objets conformés, caractérisées en ce qu'elle consistent essentiellement en un mélange de polymère du chlorure de vinyle et de polyétheruréthane à groupes amine tertiaire et/ou ammonium. Elles ont des applications médicales et servent notamment à faire des cathéters.
Patent CA-1135701-A (CA)
Inventor: WALSH DAVID A
IPC: C07D491/04
Filed: 1980-01-09
Granted: 1982-11-16
Abstract: ABSTRACT OF THE INVENTION 3,4-Epoxypyrrolidines substituted in the 1-position with alkyl, cycloalkyl and phenylalkyl are disclosed which have pharmaceutical application in cataract prevention in animals and as intermediates in preparation of trans-3-aryloxy-4-hydroxypyrrolidines.  The epoxypyrrolidines are prepared by a novel route involving chlorination of pyrrolines in aqueous medium.
Patent CA-1123249-A (CA)
Title: Reducing chemical transfer between treatment stages
Inventor: MEREDITH MICHAEL D
IPC: D21C9/10
Filed: 1980-01-10
Granted: 1982-05-11
Abstract: 12 188 P 52 4678 CANADA REDUCING CHEMICAL TRANSFER BETWEEN TREATMENT STAGES ABSTRACT OF THE DISCLOSURE A method and apparatus for reducing or eliminating the transfer of chemicals across a washer when reusing washer filtrate as a washing medium in a counterflow system. The flow of washing fluid on the washers before and after a treatment stage is split and the liquid in the pulp mat leaving the washer is principally the type used to treat the pulp after the washer, and the filtrate from the washer is principally the type used to treat the pulp before the washer.
Patent CA-1145012-A (CA)
Inventor: JACKSON HAROLD E
IPC: H01H43/12
Filed: 1980-01-21
Granted: 1983-04-19
Abstract: ABSTRACT OF THE DISCLOSURE          CONTROL ARRANGEMENTS FOR HEATING SYSTEMS        A control arrangement is provided for a heating system having heat outlets each controlled by a solenoid valve (210). Each heat outlet is connected to a pair of thermostatic switches (411, 413) operative at  different temperatures.  A time switch included in a central control means (108) is operative to selectively energise a pair of bus-bars (530, 532) at different times, thereby to provide common output signals for actuating the heat outlets via different thermostatic switches (411, 413) at different times to provide different heat outputs during differ-ent parts of a predetermined period of time (e.g. 24 hours). The central control means (108) includes a plurality of manual switches (540) each connecting the time switch output bus-bars (530, 532) to the thermostatic switches (411, 413) of an associated one of the heat outlets to manually set the heat output of the heat outlet.  The time switch and each manual switch (540) cooperate in such a manner that each overrides the other as appropriate to keep the area heated by each outlet at an appropriate temperature.
Patent CA-1146473-A (CA)
Inventor: MITSUYA EIJI
IPC: H04N1/64
Filed: 1980-01-31
Granted: 1983-05-17
Abstract: ABSTRACT OF THE DISCLOSURE       A color picture is separated into three color component pictures, which are divided respectively by first, second and third block coding means into blocks and encoded.  In the first block coding means, one of the color component pictures is encoded, for each block, into gray level codes representing gray level components in the block and a resolution code representing the dis-tribution of the gray level codes in the block.  In this case, when the gray level in the block undergoes a little change, an average gray level can be used as the gray level code and the resolution code can be omitted.  The second and third block coding means may be identical in construction with the first block coding means.  The resolution code of the block obtained by the first block coding means can also be employed in the coding of the corresponding blocks by the second and third block coding means.  In the first block coding means, the size of the blocks into which the color component picture is divided is altered locally in accordance with the state of the color component picture.  The block size thus changed in the first block coding means can also be used in the coding by the second and third block coding means.
Patent CA-1132993-A (CA)
Inventor: SANDROCK KLAUS
IPC: C07D493/04
Filed: 1980-02-01
Granted: 1982-10-05
Abstract: ABSTRACT     The present invention is related to a new process for selectively preparing isosorbide-5-nitrate (1.4-3.6-dianhydrosorbitol-5-nitrate) by subjecting isomannide (1.4-3.6-dianhydromannitol) in an organic solvent or an aqueous-organic reaction medium to reaction with the equivalent amount of an acid halogenide or the anhydride of a benzene or haphthalene sulfonic acid possibly substituted by lower alkyl, lower alkoxy and/or halogen, of a perfluoro-lower alkane-sulfonic acid, of a lower alkanesulfonic acid or of a perfluoro - lower - alkanoic acid or with the equivalent amount of an acid halogenide of a carbamic acid or of sulphurous acid;  subjecting the resulting isomannide-2-ester in the presence of a solvent and possibly with heating, to reaction with an alkali metal salt or an ammonium salt of a benzoic acid possibly substituted by lower alkyl, lower alkoxy and/or halogen or of a lower alkanoic acid;  converting the hydroxy group in the 5-position of the resulting isosorbide-2-ester into the nitric acid ester group in manners known per se by reaction with nitric acid;  and subjecting the resulting isosorbide-2-ester-5-nitrate to selective hydrolysis and/or reesterification in an organic or aqueous-organic solvent with an alkali metal hydroxide in manners known per se.
Patent CA-1144008-A (CA)
Title: Stabilizing device for floating  structures
Inventor: SERNHAG ALLAN
IPC: B65G69/28
Filed: 1980-03-05
Granted: 1983-04-05
Abstract: Abstract of the disclosure A balancing weigt is suspended by lines members below a floating structure. The line members extend from a common point of attachment at the balancing weight, and pass over rotatable leads at the floating structure to bottom anchors.            When the floating structure is subjected to a heeling moment from a passing load, the distribution of the strains in the line members is changed by the movable balancing weight, so a relative moment occurs, whereby the floating structure will be depressed in parallel downwards to a new water level.
Patent CA-1116160-A (CA)
Inventor: SVENDSEN ROBERT A
IPC: A01K73/12
Filed: 1980-03-19
Granted: 1982-01-12
Abstract: CRAB POT LINE HAULER          Abstract The improved crab pot line hauler's drive motor, sheave and associated line guide means having a common support are mounted as a composite unit on pivotal support bearings that permit the unit to revolve freely about a fixed bearing axis in addressing itself to the incoming line being hauled and that restrain the unit against other bodily motion. Placement of the center of mass of the hauler unit at or closely adjacent to such pivot bearing axis assures its relatively steady orientation in operative relation to the incoming line with minimal line deflection force acting on it to do this. Polar moment or inertia about such bearing axis being also made relatively small by such mounting system, quickness of response of the unit to changing line approach direction is also achieved, a major advantage in stormy weather.
Patent CA-1125961-A (CA)
Title: Ouvre-huitre
Inventor: PLUMET JEAN-PIERRE
IPC: A47G21/06
Filed: 1980-04-01
Granted: 1982-06-22
Abstract: PRÉCIS Un ouvre-huître amélioré constitué d'une planchette destinée à être fixée horizontalement sur une surface d'appui et un levier amovible portant un couteau. L'extrémité captive du levier comporte un trou circulaire dans lequel s'insère un crochet fixé à la planchette à peu de distance d'un épaulement contre lequel l'arrière de l'huître prend appui durant la pénétration du couteau et le sectionnement du muscle.