baber/WOPTO huggingface dataset:
Patent CA-1106768-A (CA)
Inventor: FORSYTHE JESSE G JR
IPC: B01L3/14
Filed: 1979-03-30
Granted: 1981-08-11
Abstract: Abstract An apparatus for separating fluids is formed essentislly of three pieces which may be nested together to form a stacked array.  the three pieces are a cap, an extraction cartridge housing a separating column, and a primary recovery cup.  A secondary recovery cap may also be nested onto the lower end of the waste cup.  The pri-mary recovery cup has interior flanges for positioning and protecting the bottom end of the column against damage.  Each of the elements has an enlarged upper por-tion forming an exterior step which facilitates mounting in the swinging bucket of a centrifuge.  The column itself may comprise particles of a suitable separatory material with the top and the bottom of the particles retained by porous supports.
Patent CA-1131742-A (CA)
Inventor: FENG TOM
IPC: H01L31/04
Filed: 1979-05-08
Granted: 1982-09-14
Abstract: U.S. 933, 563 etc.     ABSTRACT OF DISCLOSURE   Spraying specific solutions of tin tetrachloride on heated silicon substrate provides improved tin oxide-silicon solar cell.
Patent CA-1092930-A (CA)
Inventor: SANGSTER ARLON G
IPC: H04M1/21
Filed: 1979-05-30
Granted: 1981-01-06
Abstract: ARLON G. SANGSTER     TELEPHONE ATTACHMENT     ABSTRACT OF THE DISCLOSURE     A note holder detachably connected in the hand hold lift slot at the rear of a desk type telephone comprising a molded plastic substantially flat sheet of material having a head and arms, the arms terminating in portions to be removed for certain types of telephones, each arm having a pair of notches on its upper edge, the arms being foldable into parallelism for inser-tion into the hand hold slot and engagement with the lip at the top thereof.
Patent CA-1133989-A (CA)
Title: Procede et dispositif pour doser un fondant  chimique sur une route
Inventor: DELLA FAILLE D HUYSSE GAETAN
IPC: G01N27/06
Filed: 1979-06-05
Granted: 1982-10-19
Abstract: Procédé et dispositif pour doser un fondant chimique sur une route L'invention concerne un procédé et un dispositif pour doser un fondant chimique sur une route. On pose un manchon sur la route, on y introduit une quantité réglée d'un solvant du fondant chimique et on mesure une grandeur électrique de la couche de solution résultante. L'invention s'applique au dosage de chlorure de sodium et/ou de calcium épandu sur les routes.
Patent CA-1152809-A (CA)
Inventor: HURST GEORGE P
IPC: F04D7/04
Filed: 1979-06-15
Granted: 1983-08-30
Abstract: ABSTRACT     This invention relates to a wear lining containing rubber e.g. for pumps intended for handling wearing material such as dredger and mud pumps of the centrifugal type, which wear lining com-prises a layer of wear rubber rigidly combined with a support plate. One of the problems with wear linings of such pumps is that already in manufacture they must be given a shape correspond-ing to the shape of the shell of the pump housing in which they are to be mounted, and must be manufactured in sections to permit mounting in their pump housing. For this a great number of moulds is required, which involves great costs of manufacture, and as the known wear linings for pumps are manufactured in sections, mounting thereof will be difficult and time-consuming, at the same time as there will be a joint between two sections, which has turned out to be a part of the wear lining that is exposed to wear. To avoid  these problems a wear lining of rubber containing means included in the layer of wear rubber of the lining and increasing the resistance of the wear lining to wear is suggested according to the invention, in which these means consist of pins of metal arranged within the layer of wear rubber in one or more  mutually separated layers and spaced from each other, which pins are oriented in radial planes extending from the centre of curvature and at least across the wear surface of the lining, and of compression in the layer of wear rubber in-creasing from the support plate towards the wear surface, and produced by bending of the wear lining from a substantially plain state to the intended curved shape.
Patent CA-1135874-A (CA)
Inventor: MUKAI KIICHIRO
IPC: H01L21/316
Filed: 1979-07-12
Granted: 1982-11-16
Abstract: SEMICONDUCTOR DEVICE            Abstract of the Disclosure The invention relates to semiconductor devices such as ICs and LSIs.  When such devices are encased in plastic an intervening passivation layer must be provided to act as a barrier against moisture and impurities.  The passi-vation layers used in the past have been unsatisfactory and, in particular, tend to crack.  The invention provides a novel passivation layer comprising silicon nitride con-taining 0.8 - 5.9 weight-% of hydrogen.  The novel layer is an effective barrier and has much reduced tendency to crack.
Patent CA-1110034-A (CA)
Inventor: BAINS GURDIP S
IPC: E04B1/61
Filed: 1979-07-24
Granted: 1981-10-06
Abstract: PANEL JOINT     ABSTRACT OF THE DISCLOSURE         A panel joint for joining first and second adjoin-ing, upstanding wall panels such that their front surfaces are in a common plane and the forward facing corners of their adjoining edges are held tightly together.  The panel joint includes first and second joint elements fixed to the back surfaces of the first and second wall panels, respec-tively, adjacent to their adjoining edges. The first and second joint elements each include upstanding leg portions disposed in spaced parallel relation, with one of the leg portions having a flanged end which bridges the spacing and butts against the side of the other leg portion.  Clamping devices link the leg portions of the first and second joint elements.
Patent CA-1113763-A (CA)
Title: Dark field illuminator and collector apparatus and method
Inventor: BRUNSTING ALBERT
IPC: G01N21/64
Filed: 1979-07-27
Granted: 1981-12-08
Abstract: ABSTRACT      There is disclosed an illuminator and collector apparatus and method for fluorescence analysis wherein illumination of a stream of particles produces fluorescent light.  A reflector, having a concave reflector surface with a first focus disposed in the stream of particles, has reflected therefrom organized illuminating radiation, such radiation converging upon the first focus to stimulate the particles into producing the fluorescent light.  The fluorescent light emanates from the first focus, a portion of which is reflected from the concave reflector surface.          This fluorescent light which is focused on the second focus contains no (or negligible) amount of illuminating radiation and is collected for subsequent detection and processing.
Patent CA-1138374-A (CA)
Inventor: DAWLESS ROBERT K
IPC: C22B21/06
Filed: 1979-08-07
Granted: 1982-12-28
Abstract: ABSTRACT OF THE DISCLOSURE             A process for purifying impure aluminum comprises introducing the impure aluminum to the anode layer of an electro-lytic cell of the type having a bottom layer of molten aluminum-copper alloy constituting the anode layer and having a top layer of molten aluminum constituting a cathode layer, the cathode and anode layers separated by an electrolyte layer.  Aluminum is electrolytically transported from the anode to the cathode in a first purification step and then fractionally crystallized to remove further impurities therefrom by crystallizing pure aluminum high in impurities, from the purified aluminum.  The impure molten aluminum portion is then recycled back to the electrolytic cell or to another fractional crystallization step.
Patent CA-1106240-A (CA)
Inventor: HOGENSON LAVERNON S BOX HINGHA
IPC: A01C5/06
Filed: 1979-10-12
Granted: 1981-08-04
Abstract: SEED CONFINING ATTACHMENT FOR A WHEAT DRILL     Abstract An attachment is disclosed for securing to the boot of an agricultural shovel drill machine.  Support structure of the attachment is affixed to the back side of the boot and serves to position a seed deflecting body proximate the discharge end of the boot which body serves to deflect the gravitating seeds forwardly.  Plates also carried by the support structure act on the gravitating seed to expedite deposit of the seed in the lowermost portion of the furrow to enhance seed germination.  The plates are loosely joined so as to automatically compen-sate for wear of the boot carried shovel and also to prevent clogging by soil.  A handle is associated with the deflector body to permit positioning of same rel-ative to the upright boot axis to enable desired seed deflection.
Patent CA-1134278-A (CA)
Inventor: WARREN W THOMAS
IPC: H04N1/405
Filed: 1979-10-30
Granted: 1982-10-26
Abstract: TONE ERROR CONTROL FOR RELATIVELY LARGE IMAGE AREAS     ABSTRACT OF THE DISCLOSURE          A system for processing halftone image data in digital format.  The image data is electronically screened to provide a binary output suitable for storage or printing, the image data being processed in discrete blocks or cells.  The error between actual and printed average gray values of each image cell processed is determined and the electronic screen thresh-olds are modified in accordance with such error (if any) prior to processing the next image cell.  At the beginning of the aforesaid process and at the beginning of processing each line, the error is set at zero.
Patent CA-1133933-A (CA)
Inventor: BROOKS BURTON
IPC: C07B45/02
Filed: 1979-10-31
Granted: 1982-10-19
Abstract: ABSTRACT         A relatively large amount of S02 effluent gas from a sulfonation process is converted to S03 and recycled back to the sulfonation process as part of the S03 sulfonating agent.  The rest of the S03 used as the sulfonating agent is derived from a sulfur burner located downstream of the sulfonation operation and in the recycle path of the S02 in the effluent gas.  Hydrocarbons in the effluent gas are converted to C02 and H20 in the sulfur burner.  The H20 and S03 are removed from the gas stream at an S03 absorber which forms rich oleum from which the S03 is subsequently removed for use in the sulfonation operation, leaving lean oleum which is used at the S03 absorber to remove H20 and S03 from the gas stream.  Gases leaving the S03 absorber include some S03 and are passed through an H2S04 absorber along with water and lean oleum to produce concentrated H2S04.
Patent CA-1135972-A (CA)
Inventor: DOOLEY JOSEPH L
IPC: G01L23/22
Filed: 1979-11-14
Granted: 1982-11-23
Abstract: CYLINDER MONITORING SYSTEM                 ABSTRACT OF THE DISCLOSURE Disclosed is a transducer assembly and diagnostic apparatus for processing an electrical signal which varies with the pressure changes occurring within an engine cylinder.  The transducer assembly consists of a U-shaped structure integrally formed in a sandwich arrangement and encompassing a pressure-responsive crystalline element.  The assembly is sized such that it substantially encompasses the shank of a spark or glow plug of the engine such that axial forces from within the cylinder excite the transducer through the plug to produce a signal which is processed in an electrical circuit to provide timing or other diagnostic information.
Patent CA-1120413-A (CA)
Inventor: KADER REINER
IPC: B65D1/12
Filed: 1979-12-03
Granted: 1982-03-23
Abstract: ABSTRACT OF THE DISCLOSURE           The present invention provides a blow-molded closed head drum made from a thermoplastic material comprising roller chimes of L-shaped cross section having a vertical leg and a hor-izontal leg and extending around the outer surface of the drum body adjacent to the head end and bottom end respectively, said roller chimes being formed directly from the drum body, the vert-ical roller chime leg in the head end region pointing upwardly and that in the bottom end region pointing downwardly to define roller chime recesses which are directed upwardly and downwardly respectively said recesses forming grooves which provide engage-ment surfaces for a gripping and transporting tool, wherein the roller chimes have a constant height and the horizontal roller chime legs have a uniform wall thickness around the periphery of the drum, whereas the thickness of the vertical roller chime legs decreases progressively around the periphery of the drum away from the seams thereof which correspond to the dividing planes of the mold used for making the drum.
Patent CA-1127266-A (CA)
Inventor: PEARSON WILLIAM S
IPC: G05D9/12
Filed: 1980-01-31
Granted: 1982-07-06
Abstract: ABSTRACT     A balance beam adjustable for a desired liquid level in a reservoir is under the control of a device responsive to pressure head in a main leading from, and reflecting the liquid level in, the reservoir, the beam being in charge of a pump control for one or more pumps for activating the pumps when re-quired when the liquid level drops in the reservoir, whereby to substantially maintain the liquid level.  A timer-operated anti-stagnation or anti-icing control device is provided in association with the beam.
Patent CA-1149767-A (CA)
Inventor: KYRIACOU DEMETRIOS
IPC: C07D213/61
Filed: 1980-02-18
Granted: 1983-07-12
Abstract: ABSTRACT OF THE DISCLOSURE     An electrical conductor in intimate contact with a layer of aggregate_ silver microcrystals formed by the electrolytic reduction of colloidal, silver oxide particles in the presence of water and hydroxyl ions provides a highly active cathode having utility for electrolytic reduction of 2,3 5,6-tetrachloropyriding to 2,3,5-trichloropyridine.
Patent CA-1125437-A (CA)
Title: Protective electrical discharge device
Inventor: PIERCE THOMAS V JR
IPC: H01T1/16
Filed: 1980-03-18
Granted: 1982-06-08
Abstract: ABSTRACT OF THE DISCLOSURE      A varistor element is press-fitted into a recess formed in one surface of a metal electrode and protrudes a preselec-ted distance out from the electrode surface.  A second metal electrode is positioned in line with but spaced from the varistor by a TEFLON* washer of selected thickness of fix the length of the air gap between the varistor and second elec-trode.  The length of the copositioned air gap between the metal electrodes is similarly fixed by the washer and the protruding portion of the varistor.  The assembly is held by a central rivet with a spring cup washer positioned under its peened and to hold elements in contact while absorbing some of the discharge force.  The rivet is insulated by a nylon tube integral with  an open-end cover for the assembly held at the closed end by the rivet head.  When a high voltage surge is applied across the arrester assembly, the varistor-to-metal gap ionized quickly to initiate discharge.  Ionization products of the initial discharge, plus the varistor resistance, trigger a shift of the surge discharge to the metal-to-metal gap to protect the varistor from damage by large energy surges.         *trademark
Patent CA-1140980-A (CA)
Inventor: KROLL ARTHUR S
IPC: G03G13/06
Filed: 1980-03-31
Granted: 1983-02-08
Abstract: IMPROVED ELECTROGRAPHIC DEVELOPMENT APPARATUS AND METHOD FOR USE WITH PARTIALLY-CONDUCTIVE DEVELOPER           Abstract of the Disclosure Improved electrographic development appara-tus and procedure for use with partially-conductive developer employs transport of the developer through a first development zone in a direction generally countercurrent to a moving image member and through a second development zone in a direction generally co-current to the moving image member.  The extent of image development within each such zone is controlled by the rate of developer transport and/or the magni-tude of developer bias, so that overall development of the different portions of large solid image areas (particularly leading and trailing portions of such areas) is equalized.
Patent CA-1136602-A (CA)
Inventor: VOLLHARDT KURT P C
IPC: B01J31/20
Filed: 1980-04-25
Granted: 1982-11-30
Abstract: ABSTRACT OF THE DISCLOSURE     Novel polymer-supported metal complexes of the formula:   - R Me(CO)nHm where:        represents a divinylbenzene crosslinked polystyrene in which the divinylbenzene crosslinking is greater than 1% and less than about 18%;       R represents a cycloalkadienyl radical of 4 through 6 carbon atoms;     Me represents a Group VIII metal;     CO represents a carbonyl radical;     H represents hydrogen; n represents an integer varying from 0 through 3; m represents an integer varying from 0 through 2 in-clusively with the further provision that 2n + m must total 18 when added to the electrons in R and Me, or n + m must total 0; are prepared by: brominating   - H by treating same with bromine in the presence of a thallium salt in a partially or fully halo-genated solvent to form   - Br; treating said   - Br so produced with a lithium alkyl of 1 through 12 carbon atoms in an aromatic solvent to produce  - Li; substituting said   - Li so produced by reaction with a 2-cycloalkenone of 4 to 6 carbon atoms in the presence of an ether solvent and using a water work-up to form a cycloalkenyl-alcohol-substituted  ;      dehydrating said alcohol so produced by heating under a vacuum to produce a cycloalkadienyl-substituted  ;     reacting the cycloalkadienyl-substituted   with metal carbonyl in the presence of a partially or fully halogenated hydrocarbon, aromatic hydrocarbon of 6 through 8 carbon atoms, ethers, or esters of 4 through 10 carbon atoms as a solvent to produce a polystyrene-supported cycloalkadienyl metal carbonyl.          The novel compounds are used as improved Fischer-Tropsch catalysts particularly for the conversion of CO + H2 to gaseous and liquid hydrocarbons at milder conditions than with prior catalysts.
Patent CA-1157310-A (CA)
Inventor: BUHLER MARCEL
IPC: A23L27/10
Filed: 1980-07-07
Granted: 1983-11-22
Abstract: ABSTRACT            Process for the preparation of concentrated extracts of coffee, tea or substitutes therefor A process for the preparation of a concentrated extract of coffee, tea or substitutes therefor, which comprises the steps of (a)     subjecting an extract to an ultra-filtration treatment using a membrane having a molecular weight exclusion point in the range 500 to 5000 Daltons, so as to obtain a retained fraction containing essentially soluble solids and an aromatic permeated fraction; (b)     subjecting ultra-filtration permeated fraction from step (a) to a reverse osmosis treatment using a membrane which is capable of retaining at least 99% of NaCl; and (c)     mixing the retained fraction from the reverse osmosis of step (b) and the retained fraction from the ultra-filtration of step (a) to give the desired concent-rated extract.
Patent CA-1149152-A (CA)
Inventor: ANDREWS RONALD A
IPC: G03G15/09
Filed: 1980-08-29
Granted: 1983-07-05
Abstract: ABSTRACT OF THE DISCLOSURE         An apparatus in which conductive developer material is transported into contact with a region of a surface having image areas recorded thereon.  An elec-trical field is generated and the developer material develops the image areas.  In one mode of operation, the electrical field is substantially perpendicular to the surface over one portion of the region and substan-tially non-perpendicular thereto over the remaining portion of the region.  In another mode of operation, the electrical field is substantially perpendicular to the surface over the entire region.
Patent CA-1152792-A (CA)
Inventor: BYSTEDT HJALMAR S I
IPC: D21B1/14
Filed: 1980-10-09
Granted: 1983-08-30
Abstract: Abstract A method and a device for the manufacture of mechanical pulp from lignocellulosic material by forcing the said material into contact with a grindstone     which revolves about an axle    .  The material is supplied in bulk, particulate form, preferably as wood chips, a large number of particles simultaneously being retained, compressed and, in the presence of water, forced into contact with one or more grinding areas on the circumferential surface of the grindstone   .  The grind-stone     is enclosed in a sealed, pressurized housing   .
Patent CA-1105929-A (CA)
Inventor: CAVALLA JOHN F
IPC: C07D223/04
Filed: 1980-12-01
Granted: 1981-07-28
Abstract: Abstract The invention concerns a novel process for preparing hexahydroazepine, piperidine and pyrrolidines of formula (I)   where n is 2,3 or 4, R1 is lower alkyl, R3 is hydrogen, lower alkyl, aryl(lower)alkyl, lower alkenyl or lower alkynyl and R8 is hydrogen or lower alkyl from compounds of formula   where n and R1 are as above and R is hydrogen, lower alkyl or aryl(lower)alkyl.  The products have pharmacological activity, particularly analgesic activity.
Patent CA-1146640-A (CA)
Inventor: FRANSSEN NICO V
IPC: H03F1/34
Filed: 1980-12-11
Granted: 1983-05-17
Abstract: ABSTRACT:           An amplifier arrangement having an input coupled to the input of n amplifier sections (n ? 2), whose outputs axe connected single-ended, each via a corresponding resistor, to a common output circuit.  The voltage derived from the output of the kth amplifier section is applied together with the input voltage of this amplifier section to a difference element whose output signal is applied to the input of the (k+1)th amplifier section (k ranging from 1 to n and n+1 representing the first amplifier section). By means of this measure an arrangement has been obtained which has a very low distortion and also has a very high output power.
Patent CA-1165376-A (CA)
Inventor: POTTER RALPH M
IPC: H01J61/35
Filed: 1981-01-23
Granted: 1984-04-10
Abstract: METAL VAPOR LAMP HAVING INTERNAL COATING FOR EXTENDING CONDENSATE FILM             ABSTRACT OF THE DISCLOSURE     The coating on the inside of a metal halide lamp for promoting the formation of a liquid condensate film con-sists of particles of a refractory oxide in generally block-like or spherical or fiber-like shapes.  Block-like or spherical particles should be laid down as mono-layers with the distances between particles being of the order of the particle dimensions.  Fiber like parti-cles may be also laid down as a monolayer or, alterna-tively, in a coating several diameters thick to form "fiber piles" having a free volume for holding liquid which is much greater than the volume of the fibers.
Patent CA-1165291-A (CA)
Inventor: MAST BURTON T
IPC: F17D1/07
Filed: 1981-02-23
Granted: 1984-04-10
Abstract: ABSTRACT The cold decompressed gas flowing into the compression station is preheated by the compressed warmer gas discharged by the station's compressor, thereby raising the temperature of the compressed gas at the discharge outlet of the com-pressor.  The warm compressed gas discharged by the com-pressor is cooled with ambient air and with the cold decom-pressed gas stream flowing into the station.  If required, to still further reduce its temperature, the cold compressed gas stream is expanded until its temperature approaches the temperature of the gas within the pipeline.       The apparatus of the invention includes a gas-to-gas heat exchanger wherein the decompressed cold gas is first preheated by the counterflowing warm compressed gas.  The preheated gas is allowed into the inlet of the compressor. The temperature of the warm compressed gas from the discharge outlet of the compressor is first reduced by a gas-to-air heat exchanger.  The temperature of the gas stream flowing out of the gas-to-air heat exchanger is further reduced by the gas-to-gas heat exchanger.  Finally, if required, further temperature reduction is achieved within an expander.
Patent CA-1148236-A (CA)
Inventor: ALFANO VINCENT J
IPC: F25B49/04
Filed: 1981-04-09
Granted: 1983-06-14
Abstract: Abstract The control system interrupts the pneumatic signal controlling the demand of chilled water by utilizing a dual port direct acting controller to which are fed an outdoor air humidity signal and outdoor air temperature signal.  The dual port direct acting controller provides a signal to control the heating source for the chilled water as a function of the outside air temperature and outside air humidity as well as the internal controls of the absorption system.  Thus, the control system provides an optimal decision value for the respective climate range of conditions for the control of the heating source thereby reducing the fuel consumption of the absorption refrigeration system.