baber/WOPTO huggingface dataset:
Patent CA-1096059-A (CA)
Title: Procede de flottation de minerais oxydes
Inventor: POLGAIRE JEAN L
IPC: B03D1/02
Filed: 1977-10-17
Granted: 1981-02-17
Abstract: D E   L A   D I V U L G A T I O N L'invention concerne un procédé d'enrichissement de minerais oxydés par flottation par mousse. Selon l'invention, on utilise à titre de collecteur une association d'au moins un premier composé du type amino-1-alcane, représenté par la formule générale R1 - (NH CH2 CH2 CH2)n1NH2 dans laquelle R1 représente une chaine hydrocarbonée linéaire ou ramifiée, saturée ou insaturée, comportant de 8 à 18 atomes de carbone et n1 représente un nombre entier égal à 0, 1, 2 ou 3, et d'au moins un second composé du type amino-éther, comportant à la fois une fonction amine et une ou plusieurs fonctions éther, représenté par la formule générale R2- O - (CH2 CH2 O)n2 CH2 CH2 CH2 NH2 dans laquelle R2 représente une chaine hydrocarbonée linéaire ou ramifiée, saturée ou non, comportant de 2 à 18 atomes de carbone et n2 représente un nombre entier égal à 0, 1 ou 2. Il a été trouvé, en effet, que l'emploi de ces deux types de composés utilisés en association présente, comparativement à l'utilisation de chacun de ces deux types de composés utilisés isolément, les avantages suivants : amélioration du rendement; amélioration de la teneur des concentrés en espèce valorisable; diminution de la teneur en espèces indésirables; possibilité, sans deschlammage préalable, de traiter des minerais finement divisés, pouvant même contenir une très forte proportion de particules de dimension inférieure à 37 microns, avec des résultats très satisfaisants et ce sans augmentation de la consommation de collecteur; et amélioration de la qualité des écumes, plus particulièrement dans le cas de minerais finement divisés.
Patent CA-1097779-A (CA)
Inventor: HAGER DONALD L
IPC: H02K33/02
Filed: 1977-11-04
Granted: 1981-03-17
Abstract: PORTABLE FLUID TRANSFER PUMP                   ABSTRACT OF THE INVENTION A portable fluid transfer pump is disclosed herein.          The pump comprises a small electromagnetically activated fluid pump embodying a highly reliable blocking oscillator cyclically activating a solenoid coil in the fluid pump, and an electrical power cord assembly including an electrical connector adapted to be received in a convenient source of electrical power.  In the preferred embodiment, the electrical connector is a male connector adapted to be received in the cigarette lighter receptacle of a vehicle such as an automobile, recreational vehicle, truck or boat.
Patent CA-1064820-A (CA)
Title: Processes for producing bitumen from tar sands and methods for forming a gravel pack in tar sands
Inventor: HARNSBERGER BOBBY G
IPC: E21B43/24
Filed: 1977-12-05
Granted: 1979-10-23
Abstract: PROCESSES FOR PRODUCING BITUMEN FROM TAR SANDS AND   METHODS FOR FORMING A GRAVEL PACK IN TAR SANDS                 (D#72,621-F) ABSTRACT OF THE DISCLOSURE           A new process for producing bitumen from a subterranean reservoir of tar sands comprises basically (1) heating the casing for melting the bitumen from the tar sands adjacent the casing for forming a passage in the reservoir from upper perforations at the top of the reservoir to lower perforations at the bottom of the reservoir, (2) setting a packer in an annulus between the casing and a tubing therein between the upper and lower perforations, (3) circulating hot fluids from the upper per-forations and back into lower perforations for melting more bitumen from the tar sands for forming a predetermined size cavity around the casing, (4) pulling the tubing and packer, and rerunning the tubing with the packer and a screen, (5) ejecting a gravel pack material slurry into the cavity around the screen, (6) ejecting more hot fluids into the cavity for melting more bitumen from the tar-sands, and (7) flowing the melted bitumen through the gravel pack, lower perforations, and screen for filtering out the sand and gravel from the melted bitumen for recovering the melted bitumen at the surface.  A modification comprises position-ing the screen in the annulus over the upper perforations and forming the gravel pack thereover, consolidating it, and passing the hot fluids down the tubing for ejection from the lower perforations for producing the bitumen through the upper gravel pack, upper perforations, and screen for recovery at the surface.         Two new methods for forming a gravel pack in a subterranean reservoir of tar sands is likewise disclosed.                             -I-
Patent CA-1082012-A (CA)
Inventor: GROSS ULRICH
IPC: G10H1/38
Filed: 1977-12-23
Granted: 1980-07-22
Abstract: ABSTRACT:             A device for automatic tonal accompaniment in musical instruments equipped with a rhythm unit, the fundamental, the quint, or an other tone related to a chord being held and/or the chord itself becoming available in a predetermined sequence in a selected rhythm, whilst for at least one tonal key a chord sensor is provided at whose output a signal appears in the presence of a chord whilst an associated switching device connected thereto is provided which in the absence of a chord switches the chord sensor to detection of individual tones.
Patent CA-1108530-A (CA)
Inventor: SCHICK LLOYD A
IPC: G01N33/547
Filed: 1978-02-28
Granted: 1981-09-08
Abstract: ABSTRACT OF THE DISCLOSURE A method and test means for determining a specific bind-ing substance, such as an antigen or hapten, in a liquid sample wherein a solid, nonspecific adsorbent is contacted, preferably in sequence, with the sample and a labeled form of a binding partner for the substance to be determined, such as a labeled antibody. The amount of label which becomes associated with the adsorbent by binding of the labeled bind-ing partner to the adsorbed substance to be determined, i.e., in a sandwich fashion, is a function of the amount of the sub-stance to be determined in the liquid sample. Preferably, the adsorbent is an ion exchange material, and the assay steps are carried out under pH conditions between the isoelectric points (pI values) of the substance to be determined and the labeled binding partner. The method and test means are particularly suited for the detection of hepatitis B surface (HBs) antigen, especially where the label is a radioactive material and a column format is employed. The resultant radioimmunoadsorbent (RI-AdTM) assay and test means for HBS antigen offers signifi-cant manufacturing and user advantages over the prior art methods and test means.
Patent CA-1106613-A (CA)
Inventor: BLANCH JULIAN E
IPC: C25B1/36
Filed: 1978-07-19
Granted: 1981-08-11
Abstract: ABSTRACT     The mercury content of electrolysis cell brine sludge is reduced by sequentially:  (1) acidifying the sludge to a pH below 2.5 and (2) leaching the sludge with aqueous hypochlorite solvent. The mercury content removed from the sludge may optionally be isolated from the solvent and reused as mercury cathode for brine electrolysis.
Patent CA-1101713-A (CA)
Inventor: SHENKER MARTIN
IPC: G02B23/00
Filed: 1978-08-30
Granted: 1981-05-26
Abstract: ABSTRACT OF THE DISCLOSURE          In a multiple output scanning probe, the optical elements between the entrance and exit pupils comprise a relatively distortion-free telescope of approximately one power.  The telescope includes an image collimating element in which a collimated output image at the exit pupil is divided into a plurality of images by a plurality of imaging systems.  Each imaging system receives a portion of the output field, which portion is centred around its own centre of perspective so that this portion provides a true wide angle image of the corresponding portion of the output field.
Patent CA-1087574-A (CA)
Inventor: BROWN RICHARD I
IPC: B04B5/04
Filed: 1978-10-20
Granted: 1980-10-14
Abstract: CENTRIFUGAL STRAIN RELIEF SHEATH FOR           PROCESSING APPARATUS                    Richard I. Brown Daniel R. Boggs ABSTRACT OF THE DISCLOSURE        Centrifugal processing apparatus in which a processing chamber is rotatably mounted with respect to a stationary base.  An umbilical cable segment is fixed at one end substantially along the axis of the proces-sing chamber at one side thereof, with the other end of the cable segment being attached substantially on the axis in rotationally locked engagement to the processing chamber.  A flexible sheath member is carried by the umbilical cable segment with the flexible sheath member being connected to the axis and having a shank portion which extends from the axis and along a portion of the cable segment.  The shank portion of the flexible sheath member has a thickness which decreases along the cable segment in the direction away from the axis.  The flexible sheath member provides the umbilical cable segment with a localized stiffness at its anchor points sufficient to allow the umbilical cable segment to withstand high centrifugal forces without fracturing and without requiring other means of lateral support.
Patent CA-1113547-A (CA)
Inventor: DUDLEY KENNETH W
IPC: H05B6/80
Filed: 1978-11-03
Granted: 1981-12-01
Abstract: ABSTRACT OF THE DISCLOSURE A self-cleaning combination electric heat and microwave oven em-ploying a common cavity for cooking food with microwave energy and/or elec-tric resistance heating having a door with a resilient heat seal and a two-part microwave energy seal in which a slotted choke structure is positioned between the heat seal and the oven interior with a secondary microwave energy seal being positioned between the heat seal and the outside of the oven.
Patent CA-1094399-A (CA)
Inventor: VAN DEN HAAK ROB
IPC: B63B21/38
Filed: 1978-12-20
Granted: 1981-01-27
Abstract: Abstract of the Disclosure An anchor having a twin fluke comprising closed hollow double-plate fluke structures, a shank hinged between the flukes substantially in the gravity center of the fluke, fluke angle delimiters on either side of the hinge, rear stabilizers at the rear corners of the fluke, front stabilizers in the form of forwardly and outwardly diverging fluke finger tips, and wings connecting the fluke angle delimiters and each of the rear stabilizers, and diverging rearwardly and outwardly and also towards the rear stabilizers, the preferred embodiment being so that the wings are located substantially rearwardly of the fluke with the rear stabilizers converging rearwardly and inwardly to their intersection with the wings.
Patent CA-1115617-A (CA)
Inventor: HIBBITTS CHARLES H
IPC: A24B3/18
Filed: 1979-03-15
Granted: 1982-01-05
Abstract: METHOD AND APPARATUS FOR EXPANDING TOBACCO ABSTRACT OF THE DISCLOSURE The invention disclosed is a method and apparatus for expanding particles of cured tobacco by means of liquid and gaseous carbon dioxide which is sprayed into a mass of the tobacco in a closed pressure vessel. The thus treated tobacco is removed from the vessel and heated such that rapid release of the carbon dioxide effects expansion of the tobacco.
Patent CA-1115315-A (CA)
Title: Spring assembly for a high pressure  thrust bearing
Inventor: DIGRANDE VINCENT
IPC: F16C17/04
Filed: 1979-06-01
Granted: 1981-12-29
Abstract: ABSTRACT OF THE DISCLOSURE     A high pressure thrust bearing assembly having a rotatable runner ring mounted in sliding relationship on a plurality of flexible thrust plates, which in turn are resiliently supported on a plurality of spring subassemblies positioned between the thrust plates and an angular base member in the assembly, is characterized by having a plurality of Belleville spring discs mounted in each of the spring subassemblies.  The spring discs are supported in coaxial relation on a screw, between a first and a second washernin each of the spring subassemblies, in a manner such that the spring discs are pre-compressed between the washers to bias them away from one another with a constant biasing force.  Furthermore, the spring discs are arranged in cooperating pairs in the coaxial relationship so that the endmost discs have their respective concave sides abutting the closest washer thereto while the remaining pairs of discs are arranged to place the discs in alternately reversed relationship or in preselected parallel and series arrangements within given spring subassemblies thereby to selectively establish the stiffness of the spring subassemblies.
Patent CA-1102645-A (CA)
Inventor: MAIER MICHAEL W
IPC: F24H3/06
Filed: 1979-06-20
Granted: 1981-06-09
Abstract: Abstract of the Disclosure The furnace for burning wood or coal has a cabinet with a front wall and interconnected spaces between the inner and outer walls at the sides, top, bottom and rear.  One of two outer walls have an inlet and outlet for flow of air to be heated.  There are aligned flue openings in the upper portion of one of the sets of spaced walls.  A grate and an ash pan below are mounted within a lower portion of the cabinet.          The front wall has at least one opening closed in an airtight manner by one or two doors.  A damper, having a pipe and plate pivotally mounted on the top of the pipe at its front end, is connected to a bimetallic thermostat above it.  Both are mounted on the front of the furnace.  The thermostat is mounted for movement to open the damper.  The front wall of the cabinet or the door, when there is one door, separates the thermostat from the fire chamber within the cabinet above the grate.  The furnace construction separates entirely, or almost entirely, the thermostat from and air being heated during flow through the interconnected spaces so that the thermal energy sensed by the thermostat is entirely or primarily radiant energy from the front wall of the cabinet or the door between the thermostat and the fire chamber.
Patent CA-1126298-A (CA)
Inventor: ALLEN CHRISTOPHER S
IPC: C23G5/028
Filed: 1979-07-27
Granted: 1982-06-22
Abstract: ABSTRACT            Trichloroethylene, perchloroethylene or methylene dichloride is stabilised with an epoxy alkyl ester which is derived from a carboxylic acid containing from 5 to 22 carbon atoms and from an alcohol containing from 3 to 12 carbon atoms.
Patent CA-1136978-A (CA)
Inventor: SCHLATTER REINHARD
IPC: E04B1/94
Filed: 1979-08-30
Granted: 1982-12-07
Abstract: A B S T R A C T     The present invention concerns a composite panel with two cover sheets and between these a core made from a mixture of a granular filler material and a binding agent. The resultant panel meets the requirements governing incombustible building components in various countries, and can therefore be put in the class of incombustible building components.     The core material used in known composite panels can be inorganic and incombustible, but all such composite panels known to date suffer from severe disadvantages.     To avoid these disadvantages 100 parts by weight of the core material of the panel contains: 85 - 95 wt% of granular filler material which has an average particle size of over 100 µm and at least 50 wt% Al(OH)3 and 5-15 wt% of a binding agent.
Patent CA-1115246-A (CA)
Title: Foldable cup
Inventor: HIRATA ISAO
IPC: A47G19/22
Filed: 1979-10-11
Granted: 1981-12-29
Abstract: FOLDABLE CUP     Abstract of the Disclosure A foldable cup comprises a hollow cylindrical outer shell and a pouch inserted in said outer shell and secured thereto.  The outer shell is provided, between its upper and bottom edges, with a plurality of substantially vertical folding lines including two vertical folding lines parallel with each other.  By folding outwardly the assembly of the outer shell and the pouch along the two parallel folding lines, the assembly can be folded into a generally flat configuration, whereas by folding the assembly forwardly along all of the folding lines, the assembly can be expanded into a cubic configuration.
Patent CA-1107093-A (CA)
Inventor: ROTH ROBERT G
IPC: B23F23/02
Filed: 1979-11-06
Granted: 1981-08-18
Abstract: LOADER FOR GEAR BURNISHING MACHINE               ABSTRACT           A loader (10) for a gear burnishing machine includes a gear carrier (144) and a guide embodied by a rack (122) for cooperating to move a gear to be burnished into meshing relationship with a gear rack of the burnishing machine.  A hopper (22) including a feed mechanism provides feeding of the gears to the carrier. Carrier movement moves the gears from the hopper to the machine as the guide rack aligns the gear teeth for meshing with the gear rack teeth.  A retaining shaft of the carrier captures the gears between spaced retain-ers of the carrier as the gears move to the machine for burnishing.  A retaining member (66) and a movable dog (84) of the feed mechanism cooperate in feeding gears to the carrier.  After burnishing, an actuator including a pusher (204) moves the burnished gear off the guide to a delivery unit 14 including an inclined ramp (198).
Patent CA-1155757-A (CA)
Inventor: TEUNISSEN JOHANNES C G
IPC: C03B29/02
Filed: 1979-12-13
Granted: 1983-10-25
Abstract: 8.11.79                 1                    PHN 9306 ABSTRACT:          Method and device for machining glass and vitreous material as well as work-piece of glass or vitreous material machined according to the method.         Method and device for machining glass and vitreous material transparent by means of a single point cutting tool, a portion of the work-piece to be worked being heated integrally and uniformly by a first spread heat supply to the softening tempera-ture and simultaneously the surface to be worked being locally heated in the region of the cutting area-at the moment of material removal and to a depth equal to the cutting depth by a second concentrated heat supply, which is superimposed on the first heat supply, all this in such a manner that a chipping operation as well as simultaneously therewith and immediately thereafter a relaxing flow of the worked surface takes place. By means of the method according to the inven-tion it is possible to chip work-pieces of glass and vitreous material so that the worked surface has a high dimensional accuracy as well as an optical sur-face quality in particular, that is to say a smooth, and transparent surface.
Patent CA-1129706-A (CA)
Inventor: ANDERSEN HELGE H
IPC: A01B29/04
Filed: 1980-01-04
Granted: 1982-08-17
Abstract: Abstract of the disclosure: In a rotary earth crumbler having a central shaft (1) with mounting discs (2) fast thereon and an annular series of U-shaped resilient stirrups (3), the leg portions of these stirrups are formed with an outwardly convex curved section (12) which extends into a fixing slot (11) in the mount-ing disc and is then locked therein by deformation of parts of the slot borders below the mid portion of the curved section, thereby narrowing said slot. The locking may easily be released when needed, viz. by bringing the slot borders back to the original shape.
Patent CA-1160970-A (CA)
Inventor: BRANNER-J RGENSEN SVEN
IPC: C12N9/99
Filed: 1980-04-08
Granted: 1984-01-24
Abstract: ABSTRACT OF THE DISCLOSURE       Thermal destabilization of microbial rennet through treatment of the enzyme in aqueous medium with oxidizing a-gents containing active chlorine and use of the so modified microbial rennet for cheese-making in instances where absence of rennet activity in pasteurized whey is desired.  Preferred oxidizing agents for the thermal destabilization are hypo-chlorites.
Patent CA-1141844-A (CA)
Inventor: GELLEKINK BERNARD
IPC: G01S7/40
Filed: 1980-04-10
Granted: 1983-02-22
Abstract: Abstract Monopulse radar comprising a pilot signal generator (20) for injecting phase- and amplitude-defined pilot signals into the separate receiving channels (6-12, 3, 16-19) to obtain correction signals through the variation in the mutual phase and amplitude relationship between said receiving channels for correcting angle error signals derived from target return signals. The pilot signal generator (20) and the transmitter (1) are tunable and a control circuit is incorporated for adapting the pilot signal generator (20) relative to the frequency of the target return signals.
Patent CA-1132690-A (CA)
Inventor: STRUGER ODO J
IPC: H05K7/14
Filed: 1980-05-02
Granted: 1982-09-28
Abstract: EXPANDABLE PROGRAMMABLE CONTROLLER                 Abstract of the Disclosure A programmable controller with a processor module, one or more I/O modules and a rack in which the modules are supported, is expanded by replacing the processor module in a lead slot with a rack adapter module that connects to a separate processor unit.  The rack unit is converted from a controller rack to one of several I/O interface racks that can be connected to the separate processor unit.  The removable processor module integrates the processing functions of the separate processor unit and the parity checking, decoding and buffering functions of the rack adapter module.  The rack enclosure provides a universal connector between the I/O modules and the module selected for insertion into the lead slot.
Patent CA-1145302-A (CA)
Inventor: HOLMES TIMOTHY
IPC: B65D30/10
Filed: 1980-05-14
Granted: 1983-04-26
Abstract: ABSTRACT OF THE DISCLOSURE         A plastic material garbage bag is provided having a top edge, a bottom edge and side edges having thermo-welded side seams at the side edges and having a neck portion of heavier gauge material than the body portion to provide extra strength at the neck of the bag.
Patent CA-1143983-A (CA)
Inventor: PLUMMER WILLIAM T
IPC: G03B27/72
Filed: 1980-05-21
Granted: 1983-04-05
Abstract: CAMERA METHOD AND APPARATUS FOR RECORDING WITH SELECTED CONTRAST          ABSTRACT          The provision in front or the image surface of a photosensitive element of a device that selectively directs image light with increased intensity to microscopic, spaced-apart portions of the image surface yields a photograph or like record having a selectively decreased contrast.  The photograph is viewed independently of its location relative to the light directing device.  Changing the apparent aperture through which image light reaches the light-directing device can control the amount of contrast decrease.  Further, selec-tive filtering of a portion of the incident light separately controls the contrast of high-exposure portions of the image.
Patent CA-1153095-A (CA)
Title: Digitally controlled light intensity  modulator
Inventor: PAPUCHON MICHEL
IPC: G02F1/225
Filed: 1980-05-22
Granted: 1983-08-30
Abstract: ABSTRACT OF THE DISCLOSURE     The invention relates to a light intensity modulator controlled by a "word" of n bits and an opto-electronic ditigal-analog converter; the modulator comprises a two-arm interferometer in whose length there is created, by opto-electrical effect, successive phase shifts controlled respectively by control bits and whose values, when the control bits are in state 1, conform to the successive powers of 2.  The total phase shift obtained thus depends directly on the analog value of the control word and the emerging intensity is modulated as a function of this word.          A digital-analog converter is constructed by adding a photo-detector means whose output voltage depends on the analog value of the control word.
Patent CA-1130215-A (CA)
Inventor: KAMIYA TADASHI
IPC: B62K11/04
Filed: 1980-05-26
Granted: 1982-08-24
Abstract: ABSTRACT OF THE DISCLOSURE    A shell structure adapted to accommodate a propelling power unit forms part of a vehicle frame.  It is made of a thin sheet, and has no practical strength but is sufficiently reinforced with its opposite side sections firmly secured to the adjacent sides of the power unit.  An air path is defined in the sheel structure at least between the bottom section thereof and the power unit and, extending  between an air inlet and an air outlet opening formed respectively in the front and rear faces of the shell structure, is utilizable to accommodate an exhaust duct. Use of such shell structure enables substantial reduction in vehicle weight and particularly simplifies assembling and main-tenance operations of the vehicle.