baber/WOPTO huggingface dataset:
Patent CA-1157607-A (CA)
Inventor: BRICOT CLAUDE
IPC: B29C43/18
Filed: 1980-03-03
Granted: 1983-11-29
Abstract: PROCESS AND APPARATUS FOR MAKING VIDEO DISKS     .     ABSTRACT OF THE DISCLOSURE        A process and apparatus for making video disks by moulding from an engraved master Which consists in depositing on one edge of the master an elongated fillet of a curable resin ; photopolymerizable or thermosetting and spreading gradually the resin between the master and a flexible film of a substrate which is applied by means of a pressure roller, the resin being then cured as required by ultra-violet or infrared radiation through the film. The process may also comprise piercing the central hole and cutting out the disk. The formation of a succession of disks on the same film may be made automatic, the film advancing step by step between  each moulding and/or cutting out operation,
Patent CA-1157442-A (CA)
Inventor: LAMPERT HEINZ
IPC: G01K17/08
Filed: 1980-04-25
Granted: 1983-11-22
Abstract: Abstract:     The invention relates to an apparatus for controlling a discontinuously flowing material flow and for measuring a value proportional to this material flow and a further physical magnitude, particularly for measuring heat quantities, preferably in central heating apparatus.  The apparatus has at least one self-regulating flow valve for allowing flow-through of a constant material flow, and an on/off material through-flow valve connected in series with the flow valve, controlled by a third physical magnitude. This allows  the product of two magnitudes that are connected with one  another, for example material quantity and temperature, to be measured in the simplest possible manner.
Patent CA-1131261-A (CA)
Inventor: ODA ISAO
IPC: C04B35/10
Filed: 1980-06-19
Granted: 1982-09-07
Abstract: Abstract of the Disclosure The present invention relates to low-expansion ceramics having a chemical composition of the ceramics consisting essentially of 2 to 20% by weight of magnesia (MgO), 10 to 68% by weight of alumina (A?2O3), and 30 to 80% by weight of titanium in terms of titanium oxide (TiO2), wherein the major component of crystalline phase thereof is magnesium-aluminum-titanate phase,  and the ceramics have a coefficient of thermal expansion of not more than 20x10-7 (1/°C) in a temperature range of 25°C to 800°C and a melting point of not lower than 1,500°C, wherein the magnesium-aluminum-titanate phase as the maor component of the crystalline phase thereof is given by a chemical  formula  Mg10xA?8yTi5(l-x-y)O(10 +2y)' 0.02<x<0.20,  0.10<y<0.68,  and 0.20<(x+y)<0.70,  and a method of producing low-expansion ceramics, said method comprising steps of preparing a batch of compounds so as to provide a chemical composition of 2 to 20% by weight of magnesia, 10 to 68% by weight of alumina, and 30 to 80% by weight of titanium in terms of titanium oxide (TiO2); plasticizing the batch if necessary and shaping the batch by a means selected from the group consisting of extrusion, pressing, slip casting, and injection molding; drying the body thus formed; and firing the shaped body at 1,300°C to 1,700°C for 0.5 to 48 hours, whereby ceramics have a magnesium-aluminum-titanate phase as main component of crystalline phase  thereof,  a coefficient of thermal expansion of not more than 20x10-7 (1/°C) in a temperature range of 25°C to 800°C, and a melting point of not lower than 1,500°C.     The ceramics of the invention can be widely used as ceramics material in the fields where high degree of heat-resistance, thermal shock-resistance, wear-resistance and corrosion-resistance are required.
Patent CA-1141420-A (CA)
Title: Filament, procede d'affutage electrolytique et  appareil permettant la mise en oeuvre du procede
Inventor: LHOTSKY STEPHEN
IPC: H01J37/06
Filed: 1980-06-20
Granted: 1983-02-15
Abstract: Un filament de tungstène conçu comme source thermoionique, fabriqué d'un fil dont la zone définissant la pointe est de diamètre inférieur à celui de la zone basale tandis que le diamètre de la partie transitoire du fil change progressivement. Ce filament est contenu dans un même plan et ses pattes inférieures sont soudées aux poteaux rigides de la base de céramique. L'invention comprend également un procédé d'affûtage électrolytique servant à la réduction du diamètre du fil du filament, et ce procédé, qui permet la réduction progressive de la dimension d'une pièce peut servir à diverses autres applications. Il y est également décrit un appareil servant à la fabrication d'un tel filament par affûtage électrolytique cyclique, de même qu'un dispositif servant au pliage du fil et à son positionnement pendant l'opération de soudage.
Patent CA-1156133-A (CA)
Inventor: NEUFFER KARL
IPC: B21D1/02
Filed: 1980-07-09
Granted: 1983-11-01
Abstract: ABSTRACT OF THE DISCLOSURE         A machine for straightening metal bands comprising drivable rollers defining one edge of a pathway;  a com-pressor roller defining a second edge of the pathway opposed to the first edge;  and means to move the compressor roller towards and away from the first edge of the pathway.
Patent CA-1140190-A (CA)
Inventor: GRAF RUDOLF
IPC: H01H33/24
Filed: 1980-07-31
Granted: 1983-01-25
Abstract: INVENTOR:  RUDOLF GRAF          INVENTION: GAS-BLAST SWITCH     ABSTRACT OF THE DISCLOSURE     A gas-blast switch provided with two coaxially arranged contact elements which can be brought into and out of engagement with one another by carrying out an axial movement.  The first contact element which is connected with a drive is arranged in a fixed reference position forwardly of a blast nozzle.  The blast nozzle is connected at its inlet side with a compression chamber or space which can be pressurized during the cut-off stroke of the gas-blast switch.  In the cut-on stroke of such gas-blast switch the second contact element engages with the blast nozzle.          The second contact element is surrounded by a screening body which, in turn, can be shifted back by means of the blast nozzle, during a cut-on stroke of the gas-blast switch, out of its advanced position in the cut-off position, against the action of a spring, along the second contact element.  In order to more rapidly increase the spacing between both contact elements at the start of a cut-off stroke than such would correspond to the path of the cut-off stroke, the screening body and the second contact element are coupled with one another so as to perform opposite movements in relation to one another.
Patent CA-1155260-A (CA)
Inventor: MEADOWS KENNETH E
IPC: A47L11/16
Filed: 1980-08-13
Granted: 1983-10-18
Abstract: ABSTRACT Dispensing apparatus for dispensing liquid into water mainstream including a mainstream passageway for transmission of mainstream from an inlet to an outlet end, and a dispensing reservoir at least partially surrounding the mainstream passageway between the inlet and outlet ends. An inlet passageway extends between an opening into the mainstream passageway and an opening into the reservoir, and an outlet passageway extends between an opening into the mainstream passageway and an opening into the reservoir, Control means is provided to close and open at least one of the inlet and outlet passageways.  During use, a portion of water mainstream is diverted along the inlet passageway into the reservoir, liquid in the reservoir passing along the outlet passageway from the reservoir to the mainstream passageway.      The apparatus further includes a wet cleaning device having a housing defining the passageways and the dispensing reservoir, a brush support mounted on the housing for rotation about its longitudinal axis, a set of brush bristles mounted in the brush support, and impeller members spaced apart about a peripheral edge of the brush support and extending radially outwardly therefrom.  The mainstream passageway outlet end is arranged to direct water and entrained liquid issuing therefrom to impinge on successive ones of the impeller members causing the brush support to rotate and thereafter flow to a surface on which the set of brush bristles bear to wet clean the surface.
Patent CA-1135522-A (CA)
Inventor: TIETZ WERNER
IPC: E05B19/02
Filed: 1980-09-30
Granted: 1982-11-16
Abstract: Abstract A flat key has laterally projecting ribs which extend along the key and which are adapted to enter slots in the key hole of a lock.  The slots communicate with bores which receive locking pins which are pushed outwardly when engaged by the ribs.  When not engaged by ribs of correct height or in the absence of ribs the locking pins are not pushed out to the extremities of the bores, thus leaving recesses into which a housing pin falls to prevent rotation of the central cylindrical part of the lock.  According to the invention two additional ribs are provided which are provided with spaced discontinuities or depressions.  The lock is provided with security pins in addition to the locking pins and these security pins are intended to be received in the discontinuities or depressions of the key.  When the correct key is inserted the locking pins are pushed outwardly as before and the security pins are urged inwardly out of engagement with locking recesses provided in the housing.  This permits rotation of the central cylinder. With the wrong key or if a tool is used to manipulate the lock, one or more of security pins is pushed outwardly into locking engagement with the housing thus preventing rotation even if all of the locking pins are successfully released.
Patent CA-1177274-A (CA)
Title: Poutres a ame en tole mince associee a un voile  beton, par des connecteurs specialement disposes  pour equilibrer les efforts de cisaillement  d'armatures longitudinales de renfort
Inventor: FROMONT MICHEL M V C
IPC: E04B1/24
Filed: 1980-10-10
Granted: 1984-11-06
Abstract: TITRE: POUTRES ? ?ME EN T?LE MINCE ASSOCIÉE ? UN VOILE BÉTON, PAR DES CONNECTEURS SPECIALEMENT DISPOSÉS POUR ÉQUILIBRER LES EFFORTS DE CISAILLEMENT D'ARMATURES LONGITUDINALES DE RENFORT PRÉCIS DE LA DIVULGATION Des poutres et structures principalement composées de tales minces associées à des voiles coulables, du béton par exemple, par des connecteurs métalliques. Les poutres peuvent être renforcées par des armatures noyées dans les voiles. La position des connecteurs est définie: a) pour empêcher dans les poutres mises en charge un voilement notable des tôles mettant en péril la structure; b) pour transmettre aux tôles les contraintes de glissement longidutinal engendrées par les armatures. La structure peut être complétée par un treillis soudé, des traverses et des caissons de renfort, disposés aux points d'appui. Lesdites structures peuvent être prolongées à leurs extrémités de caissons métalliques permettant d'effectuer des assemblages entre différentes structures, par les moyens habituellement utilisés en charpente métallique.
Patent CA-1130510-A (CA)
Inventor: AMREIN FRITZ
IPC: A47K1/14
Filed: 1980-11-13
Granted: 1982-08-31
Abstract: POP UP STOPPER                   ABSTRACT OF THE DISCLOSURE        A manually operable pop up stopper for a sink or the like comprises a head for sealing the sink and a tail for entry into the sink drain tube.  Shoulders are provided on the tail which are positioned to engage in overflow wall openings of the drain tube, thereby limiting the upward axial movement of the stopper.  Portions of the tail are configured to be biased into contact with the interior wall of the drain tube to retain the stopper in an axially set position.
Patent CA-1151756-A (CA)
Inventor: JACOBSON THOR V
IPC: H01S3/08
Filed: 1980-11-25
Granted: 1983-08-09
Abstract: Abstract of the Disclosure The invention disclosed is a dual wavelength laser source for use in laser rangefinders.  Two different laser-active media, e.g. CO2 and DF are operated in separate laser cavities arranged in tandem in the same optical resonant cavity, resulting in a co-linear dual wavelength laser output.
Patent CA-1156595-A (CA)
Inventor: RIGERT CESAR
IPC: F16H55/26
Filed: 1981-01-12
Granted: 1983-11-08
Abstract: ABSTRACT OF THE DISCLOSURE         The present invention provides in a transport system for a stairway elevator with a platform, seat, or the like used to accommodate a load as well as a drive system which is moved together with the load having at least one drive wheel that engages pinion-like in a notched rail arranged along the transport path and which matches the drive wheel, the improvement in which the meshing between the drive wheel and the notched rail is to a greatextent formed in such a manner as to be independent of direction.
Patent CA-1160401-A (CA)
Inventor: MAY ADOLF
IPC: C09D17/00
Filed: 1981-02-06
Granted: 1984-01-17
Abstract: Highly concentrated filler slurries Abstract of the Disclosure:            Filler slurries with a content of 0.1 to 5 % by weight of a compound of the formula                   (1) in which R is hydrogen or methyl, R1 is C8-C24-alkyl, C8-C24-alkenyl or C8-C24-alkylphenyl, R2 is hydrogen, C1-C4-alkyl, C1-C4-hydroxyalkyl, C2-C4-epoxyalkyl, benzyl or a group of the formula - (CH2?HO)zH, X, Y and Z together are a number from 1 to 20, and A means an anion.
Patent CA-1166742-A (CA)
Inventor: KUNIYOSHI YASUNOBU
IPC: H03J1/00
Filed: 1981-02-13
Granted: 1984-05-01
Abstract: ABSTRACT OF THE DISCLOSURE         A control apparatus for controlling a plurality of functions is described in which a plurality of control data are serially transferred to a shift register where they are converted into parallel control data, the above converted control data are supplied to a D-A converter to produce a plurality of analog control voltages and also a predetermined control data among the plurality of control data is preset to a previously determined data by a single operation.
Patent CA-1153179-A (CA)
Inventor: MEDWED EMMERICH
IPC: B29C51/10
Filed: 1981-03-11
Granted: 1983-09-06
Abstract: PACKAGING MACHINE            ABSTRACT OF THE DISCLOSURE:     The packaging machine has a molding station comprising a receiprocating molding die for shaping thermoplastic sheet material to form packaging containers. Reciprocating drive is transmitted to the molding die by first engagement means provided laterally thereon and cooperating second engagement means provided laterally of the moving path of the molding die and opposite the first engagement means.          The molding die may be moved into a retracted position at one end of its moving path, and when in this retracted position, the first and second engagement means are disengaged so that the molding die and any members secured thereto may be readily removed for replacement thereof and/or of mold-ing inserts provided in a lower part of the molding station.          In a preferred embodiment, the first and second engagement means are formed by a driving chain and engagement members, respectively, the engagement members being shaped to engage the chain links.
Patent CA-1160277-A (CA)
Inventor: FANTOZZI LOUIS J
IPC: G03G15/06
Filed: 1981-03-12
Granted: 1984-01-10
Abstract: ABSTRACT The present invention is a sample data control system having a toner dispensing control loop regulating toner flow using a sensor approach directly measuring developed images to eliminate toner mass variations, and a bias control loop maintaining optimum density images on the photoreceptor in spite of changing humidity conditions. Two test targets, each having two test patches are selectively exposed to provide test data in the photoreceptor image area for suitable sensing and control of the toner dispensing and bias control loops.
Patent CA-1174629-A (CA)
Title: Process for the demetallization of hydrocarbon oils
Inventor: VAN DER EIJK HUNO
IPC: C10G45/04
Filed: 1981-04-09
Granted: 1984-09-18
Abstract: A B S T R A C T       A PROCESS FOR THE DEMETALLIZATION OF HYDROCARBON OILS      Hydrocarbon oils of which more than 70% by volume boils above 360 C, which have a C5 asphaltene content of less than 2.5% by weight and of which the total vanadium and nickel content is 5-150 ppmw, are demetallized by contacting them at elevated temperature and pressure and in the presence of hydrogen with a catalyst containing as metal with hydrogenation activity exclusively molybdenum in a quantity of more than 2.0 parts by weight per 100 parts by weight of porous carrier, which catalyst has such an average pore diameter (p) and average particle diameter (d) that the relation:       7Ø10-3.(PH2)2 > p/d0.5 > 1.4.10-3.(PH2)2    , where PH2    represents the hydrogen partial pressure used (p in nm, d in mm, PH2  in bar), is fulfilled.
Patent CA-1171593-A (CA)
Inventor: CASU BENITO
IPC: B01D15/00
Filed: 1981-04-10
Granted: 1984-07-24
Abstract: Abstract A novel polyaminic resin obtained by crosslinking a polyalkyleneimine (in particular polyethyleneimine) with diisocyanates  in solution, useful as a selective  separation or extraction agent of a component having a "complementary" chemical structure (particularly heparin),    by means of mere contact or "ionic exchange" with aqueous solutions  containing it, is described. Heparin is, thus even quantitatively extract-ed from solutions  containing it alone or in mixture with other glucosaminoglycanes. The polyamine can then release the "adsorbed" heparin and be recovered by a treatment with saline solutions.  The novel resin is used in pharmaco-biological fields.
Patent CA-1169601-A (CA)
Inventor: COATES DAVID A
IPC: B01D39/08
Filed: 1981-05-13
Granted: 1984-06-26
Abstract: ABSTRACT        DISPOSABLE SURGICAL FACE MASK AND METHOD OF PRODUCING IT     A disposable surgical face mask has a body portion adapted to cover the nose and mouth and has means to secure the body portion over the nose and mouth.    The body portion comprises as the filter medium a nonwoven web including or consisting of fibrillated electret fibers, e.g. of polypropylene, said web having a weight of not more than 50 g/m2, e.g. 20 to 35 g/m2, and said fibers having an average width of at least 10 microns.   The body portion may include support means for the filter medium such as two webs of nonwoven fabric retaining the filter medium therebetween. A method of producing the face mask is described in which the filter medium is provided by laying a web of fibrillated electret fibers by air-laying means.
Patent CA-1174505-A (CA)
Inventor: MOLLET HERBERT
IPC: G03C7/28
Filed: 1981-07-21
Granted: 1984-09-18
Abstract: Abstract Production of masked positive colour images by the silver dye bleach process, by exposure of a photo-graphic material for the silver dye bleach process, silver developing, dye bleaching, silver bleaching and fixing, optionally the silver bleaching is carried out simultane-ously with the dye bleaching and/or the fixing, in a single processing bath. The photographic material used contains a) in at least one layer, at least one first dye from which at least one undesired secondary colour density is to be compensated, b) in the layer(s) a) and/or in a layer adjacent to this layer, (in each case) one iodide-containing silver halide emulsion associated with this dye (these dyes), c) in at least one other layer, at least (in each case) one second dye, the main colour density of which corres-ponds to the secondary colour density (densities), to be compensated, of the first dye(s), d) in the layer(s) c) and/or in a layer adjacent thereto, an iodide-free  silver halide emulsion associated with this dye (these dyes), or, in comparison with the emulsions mentioned under b), A silver halide emulsion of low iodide content, and e) in the layer(s) c) and/or in at least one other layer which is adjacent to the layer(s) c) and which is separ-ated from one or more layers a) by at least one inter-mediate layer, a core-shell emulsion which is free of iodide or has a low iodide Content, the particles of which emulsion consist of a surface-fogged silver halide  core and of an unfogged over halide shell enclosing the latter, it being possible for this emulsion to be developed spontaneously up to the maximum density by the action of a developer, and optionally a developing retarder.        The developing rate of the core-shell emulsion and hence the masking effect can furthermore be influenced by the shell thickness of the core-shell particle and also by the sulfite content of the developer.        The developing is carried out in a developer solu-tion which does not contain any silver-complexing agents.
Patent CA-1182437-A (CA)
Inventor: PELEKIS EMMANOUIL A
IPC: F01C1/20
Filed: 1981-08-20
Granted: 1985-02-12
Abstract: ABSTRACT OF THE DISCLOSURE      A pair of tangential rotors are provided on separate shafts dependently rotatable in a housing, one having a vane and the other a notch for allowing passage of the vane, to form a fluid-tight segmented annular region through which the vane moves.  A valve admits a mass of high pressure compressible fluid to the region through a triangular port for expansion, or from the region after compression, the mass of fluid being confined in a portion of the region between the vane and the surface of the notched rotor and changing in pressure because of the change in arcuate length and thus volume of the confined region portion.  Multiple pairs of rotors may be included on the one rotor and two notches on the other.  Two vaned rotors may cooperate with one notched rotor, the vaned rotors being on separate shafts.
Patent CA-1177317-A (CA)
Inventor: KATZ SAUL N
IPC: A23F5/20
Filed: 1981-09-01
Granted: 1984-11-06
Abstract: APROTIC  SOLVENT DECAFFEINATION                       ABSTRACT      The object of the invention is to provide an improved method for removing caffeine from green coffee.     Prior art procedures for decaffeinating green coffee beans required the addition of substantial amounts of water before practical rates of extraction could be achieved.  The addition and removal of water increases processing time, increases energy consumption, and negatively affects flavor.     The process disclosed herein is capable of decaffeinating green coffee beans at a moisture content near that employed for shipping and storage. The green coffee beans are contacted with dimethyl sulfoxide, an aprotic solvent, to remove at least a portion of the caffeine.  While the dimethyl sulfoxide is suitably selective toward caffeine versus chlorogenic acid, some sugars are dissolved and the solvent is preferably maintained saturated with the sugars. The caffeine is preferably removed from the solvent by use of a solid adsorbent such as activated carbon.
Patent CA-1154867-A (CA)
Inventor: CONQUEST ERNEST A
IPC: H01J23/26
Filed: 1981-09-01
Granted: 1983-10-04
Abstract: Helix Traveling Wave Tubes with Reduced Gain Variation Abstract In a traveling wave tube (TWT) using an inter-action circuit of the helix-derived type, the gain of the tube normally varies significantly over the passband.  The invention provides a simple method of reducing the gain variation together with a reduction in the noise power density produced at the output of the tube.  This is accomplished by affixing a nonresonant terminated transmission line such as a meander line on at least one of the dielectric rods used to support the helix.
Patent CA-1151371-A (CA)
Inventor: BAYUGA DOUGLAS A
IPC: B29D30/48
Filed: 1981-09-03
Granted: 1983-08-09
Abstract: ABSTRACT OF THE DISCLOSURE           The method of shipping and securing an uncured tire bead filler material to a tire bead ring consisting of initially placing a piece of bead filler material over one of the peripheral surfaces of the bead ring; stitching a filler material first portion to this surface; folding, juxtaposing and thereby adhering a part of a filler material second portion over and on at least the filler material first portion; and adjusting the final angular position of the remainder of the filler material relative to the bead ring.  Several embodiments of this method are presented.