baber/WOPTO huggingface dataset:
Patent CA-1097872-A (CA)
Inventor: GELLERT JOBST U
IPC: B29C45/28
Filed: 1978-12-08
Granted: 1981-03-24
Abstract: ABSTRACT OF THE DISCLOSURE        This invention relates to improved mechanism for actuat-ing injection molding valve pins. In one embodiment, the mechanism is located between two parallel rows of valve pins located in a common plane with their driven ends adjacent the mechanism. The mechanism includes a central elongated member which is longitudin-ally reciprocable and two parallel elongated transversely recip-rocable side members, each located between the central member and one of the rows of valve pins. Each of the side members is connect-ed to the central member by a number of spaced pairs of pivotally connected pins and the central member is secured against transverse motion, while the side members are secured against longitudinal motion. Therefore, the side members are reciprocated transversely when the central member is reciprocated longitudinally by a hydrau-lic cylinder. The side members each have outer faces in contact with the driven ends of the valve pins of one of the rows and the outward motion of the side members actuates the valve pins along their longitudinal axis to a closed position in which the tips of the valve pins are seated in their respective gates.  When the central member is returned to the open position, the side members are drawn closer together allowing the valve pins to withdraw under the pressure of the melt. In addition to providing a simplified mechanism for actuating the valve pins in unison, this mechanism has the advantage that the link structure causes the valve pins to move through the minimum distance with maximum force as they approach the closed position. In addition, the opposing forces applied by the side members to the central member balance each other out to a considerable extent.
Patent CA-1109012-A (CA)
Title: Procede de production d'une culture stable d'un microorganisme du genre lactobacillus
Inventor: SMILEY MARTIN B
IPC: C12N15/00
Filed: 1979-03-01
Granted: 1981-09-15
Abstract: B R E V E T    D' I N V E N T I O N Procédé de production d'une culture stable d'un microorganisme du genre Lactobacillus Société dite : SOCIETE DES PRODUITS NESTLE S.A. Inventeur :  Martin Bryce SMILEY Abrégé descriptif Procédé de production d'une culture stable d'un microorganisme du genre Lactobacillus présentant au moins un élément génétique extrachromosomal stimulant d'une part son aptitude à produire de l'acide lactique à partir du lactose et contrôlant d'autre part son aptitude à métaboliser la N-acétyle-D-glucosamine. On cultive le microorganisme dans un milieu nutritif dont la source principale de carbone assimilable est constitué par la N-acétyle-D-glucosamine.
Patent CA-1119060-A (CA)
Inventor: NORRIS ALAN H
IPC: D02G3/28
Filed: 1979-05-16
Granted: 1982-03-02
Abstract: SELF-TWIST YARN AND METHOD OF HAKING SAME   by ALAN H. NORRIS and PHILLIP W. CHAMBLEY               ABSTRACT OF THE DISCLOSURE      Group of singles yarns are false-twisted, brought together node locked and plied to form plied strands.  Additional torque in the plying direction is applied beyond the equilibrium point to add twist to the plied strands.  Jet devices using air or steam can be used to apply the additional torque.
Patent CA-1083175-A (CA)
Inventor: UMEZAWA HAMAO
IPC: C07C243/34
Filed: 1979-07-25
Granted: 1980-08-05
Abstract: .delta.-SUBSTITUTED NEGAMYCIN DERIVATIVES          AND SYNTHESES                  ABSTRACT             Compounds having the structure   were found to be antibacterial agents and were synthesized by a process which comprises a)  reacting diazomethane in the presence of boran trifluoride etherate with a conventional, easily removable ester of amino-protected negamycin to form the intermediate having the formula   wherein A is hydrogen and B is a monovalent amino-protective group or A together with B are a divalent amino-protective group and b)  removing from said intermediate the amino-protective groups A and B and the methyl ester group to form O-methylnegamycin.
Patent CA-1110337-A (CA)
Inventor: BALDE JOHN W
IPC: H01R4/24
Filed: 1979-07-27
Granted: 1981-10-06
Abstract: TERMINATION OF FLAT FLEXIBLE CABLES            Abstract of the Disclosure Techniques for terminating one or more flat flexible cables (38A,38B) are disclosed.  A floor plate (21) used in such terminating is adapted to receive one or more insulation-piercing connectors (28) in one or more recesses (27) in an upstanding wall (26) along an edge of the floor plate. Each connector may alternatively receive, in independent manner and in electrical isolation from one another, either one or two flat flexible cables at the option of a user.          Suitable, temporary protective cover (61) and final housing (71) facilities are also disclosed.
Patent CA-1128286-A (CA)
Title: Wet process phosphoric acid purification
Inventor: JASSAL AVTAR S
IPC: C01B25/234
Filed: 1979-08-13
Granted: 1982-07-27
Abstract: WET PROCESS PHOSPHORIC ACID PURIFICATION       Abstract of the Disclosure Extraction battery fouling is reduced in the sol-vent extraction purification of crude phosphoric acid by performing the steps of:      a)  extracting crude phosphoric acid with solvent in a main extraction battery without the addition of sulfuric acid;      b)  acidulating the raffinate from step (a) with at least a precipitate-forming amount of sulfuric acid;    c)  aging the precipitate of step (b) for at least 15 minutes, and separating the precipitate from the acidulated raffinate;      d)  extracting with organic solvent the essential-ly precipitate-free raffinate of step (c) in a secon-dary extraction battery.
Patent CA-1128001-A (CA)
Title: Cellule d'electrolyse
Inventor: PERE GERARD
IPC: C25B9/00
Filed: 1979-08-20
Granted: 1982-07-20
Abstract: La présente invention concerne une cellule d'électrolyse, telle qu'une cellule utilisée pour la réalisation d'un électrolyseur destiné à la production d'hydrogène à l'échelle industrielle. Les électrolyseurs connus actuellement sont généralement constitués par une agglomération de cellules d'éléctrolyse. Par ailleurs, faire fonctionner les électrolyseurs à température et pression élevées permet d'en augmenter le rendement, tout un posant d'énormes problèmes que l'invention permet de réduire par l'emploi de structure compactes. La cellule selon l'invention est constituée par une succession alternée d'électrodes et diagrammes plans, paralleles et séparés les uns des autres par des intervalles dans lesquels peut circuler un électrolyte dont les entrées sont situées sur une face de la cellule et les sorties sur la face opposée. Les faces d'entrées et de sorties sont parallèles aux électrodes. Chaque orifice d'entrée sur la face d'entrée est contigu à un "canal d'entrée" rectiligne, parallèle aux électrodes et tr?versant la cellul? jusqu'au plan de sortie qui l'obstru? côté sortie, et vic?-versa pour les orifices de sortie et les "canaux de sortie". Chacun des canaux ?'entrée est relié à un ou plusieurs canaux de sortie par des passages situés entre électrode et diaphragme adjacent.
Patent CA-1144266-A (CA)
Inventor: PAGE DERRICK J
IPC: H01S5/18
Filed: 1979-09-11
Granted: 1983-04-05
Abstract: ABSTRACT OF THE DISCLOSURE An optical power transistor comprises a gallium arsenide laser diode disposed on the surface of a semicon-ductor diode.  The ends of the laser diode are angled so that the laser radiation generated in the Fabry-Perot cavity is directed onto the surface of the semiconductor diode for creating electron hole pairs therein and thereby creating electrical current therethrough.  In another embodiment, prism means are disposed on the ends of the laser diode for directing the laser radiation onto the semiconductor diode.
Patent CA-1129535-A (CA)
Title: Front trim for panelboard
Inventor: LUKE ROGER D
IPC: H02B1/42
Filed: 1979-09-14
Granted: 1982-08-10
Abstract: ABSTRACT OF THE DISCLOSURE     The front trim of a panelboard consists of a front plate having an interior opening surrounded by a rearwardly extending lip, and a face plate having a forwardly extending lip disposed in telescoping rela-tionship with respect to the lip of the front plate.    Adjusting means are provided to move the face plate forward and rearward while the front plate and the panelboard interior remain stationary.  The face plate is provided with twist-outs which are pressed forward so that during removal thereof they cannot be punched to the rear into engagement with live conductors of the panelboard interior.
Patent CA-1111162-A (CA)
Inventor: GLEICHENHAGEN PETER
IPC: C08L33/00
Filed: 1979-10-17
Granted: 1981-10-20
Abstract: ABSTRACT OF THE DISCLOSURE           An aqueous emulsion copolymerizate produced from a monomeric mixture of:  (a) 5 to 85 weight percent (relative to the total weight of the monomers) of one or more maleic acid monoamides or maleic acid monoesters whose hydrocarbon groups have chain length of 12 to 32, wherein the maleic acid monoamide and, the maleic acid monoester, can be substituted up to about one-half by fumaric acid diester; with (b) 15 to 95 weight percent (relative to the total weight of the monomers) of styrene or its derivatives, or a mixture of styrene or a styrene derivative with acrylic acid alkyl ester, wherein the constituent of the said comonomers must be so selected depending on molecular weight, so that at least one equimolar mixture of the said comonomers with the maleic acid and fumaric acid derivatives is produced; and, if required, additionally with: (c) up to 20 weight percent (relative to the total weight of the monomers) of compounds with more than one polymerizable carbon double bond or of crosslinking monomers with reactive functional groups;           and/or: (d) up to 20 weight percent (relative to the total weight of the monomers) of monomers having polar carboxylic groups.  The copolymerizate emulsion is applied in a thin layer onto a flat sheet or tape-like backing surface of pressure sensitive adhesive tapes and the like.  The reaction is carried out by radical polymerization in emulsion at an alkaline pH.
Patent CA-1155867-A (CA)
Inventor: LYONS JAMES E
IPC: C07C69/15
Filed: 1979-10-22
Granted: 1983-10-25
Abstract: ABSTRACT OF THE DISCLOSURE         Equimolar amounts of vinyl acetate and phenol may be prepared by oxidation of ethyl benzene.  The catalytic oxida-tion, of ethyl benzene, when carried out in the presence of acetic anhydride, forms phenyl acetate and ethylidene diacetate. Pryrolysis of these two intermediates yields vinyl acetate and phenol.  In a further embodiment of this invention it has been found  that persulfate promoters such as potassium persul-fate, persulfuric acid, or Caro's dry acid are particularly effective promoters for this oxidation reaction.
Patent CA-1130198-A (CA)
Inventor: YONKER JOHN H
IPC: E21B34/10
Filed: 1979-10-23
Granted: 1982-08-24
Abstract: LANDING NIPPLE Abstract of the Disclosure A landing nipple, adaptable to be made up in a tubing string having a sliding sleeve disposed in its bore for selec-tively providing communication of balance and control pressure fluid to the nipple bore.  When the sleeve is shifted to its first, upper position, balance fluid is conducted via the nipple to a tubing retrievable safety valve placed in the tubing string below the nipple.  In the event the tubing retrievable safety valve is taken out of service, a secondary safety valve can be landed in the nipple, the sleeve shifted to its downward, second position, opening sleeve ports for conducting control and balance fluids to the landed, secondary safety valve.  The nipple has a failed closed safety system provided by the novel arrangement of nipple entry ports for balance and control fluid, in that the control fluid entry port is in between two balance fluid ports and their seals, so that failure of the pressure seal exposed to tubing pressure causes tubing pressure to enter the balance pressure system closing the tubing retrievable or secondary safety valve, whichever is presently in service.
Patent CA-1124504-A (CA)
Title: Gramophone record composition
Inventor: JAMES KENNETH
IPC: G11B3/70
Filed: 1979-11-06
Granted: 1982-06-01
Abstract: ABSTRACT          A PVC/PVA copolymer composition for gramophone record manufacture can be stabilised in the absence of heavy metal ions by including therein 0.3 to 1.5% by weight of a fatty acid soap of an alkaline earth metal or zinc; 0.3 to 1.85% of sugar or polyol fatty acid esters; and 0.15 to 1.10% of fatty acid mixed glycerides.
Patent CA-1134679-A (CA)
Inventor: ANGELINI EDWARD J
IPC: B01D47/10
Filed: 1979-12-10
Granted: 1982-11-02
Abstract: ROD SCRUBBER            Abstract of the Disclosure A venturi-type rod scrubber for effecting the cleaning of the flue gas produced as a by-product of the combustion process that occurs during the course of the operation of fossil fuel firing steam generators, before the flue gas flows up the exhaust stack and is released to the atmosphere.  The subject scrubber includes inlet means through which the flue gas enters the scrubber.  A first spray system is suitably mounted in juxtaposed relation to the inlet means so as to be operative to intro-duce liquid into the stream of flue gas entering the scrubber through the inlet means.  In alignment with but in spaced relation to the inlet means, the scrubber is provided with a throat region, i.e., a region of restricted cross-section.  A plurality of spaced rows of parallel rods are suitably mounted within the throat region so as extend substantially perpendicular to the path of flow of the flue gas flowing therethrough.  Interposed between the inlet means and the throat region, the scrubber is further provided with a second spray system that is also operative to introduce liquid into the flue gas stream.  The first spray system and the second spray system mutually cooperate to effect an even distribution of liquid across the entire cross-sectional area of the throat region that is being traversed by the flue gas as the latter flows through the scrubber.  This even distribution of liquid provides for an efficient removal of the par-ticulate matter, entering the scrubber in entrainment with the flue gas. Concomitantly a reduction is achieved in the amount of particulate emis-sion being released from the stack to the atmosphere.
Patent CA-1130946-A (CA)
Inventor: HOWARD DENNIS D
IPC: C08G18/67
Filed: 1980-01-08
Granted: 1982-08-31
Abstract: Abstract of the Disclosure Energy curable compositions which can be cured in the presence of air by exposure to actinic radiation contain at least one unsaturated oligomer selected from the group consisting of, (I), the reaction product of at least one unsaturated active hydrogen-containing compound; at least one polyisocyanate; and at least one polyetherester, said poly-etherester having in its main chain the residue of at least one poly-kylene oxide) polyol; and, (II), the reaction product of, (1), at least one olefinically unsaturated compound containing a single reactive carboxyl or hydroxyl group and, (ii), at least one compound selected from the group consisting of poly(alkylene oxide) polyols, hydroxyl-terminated polyetheresters and carboxyl-terminated polyetheresters, said polyetheresters having as a characteristic feature the residue of at least one poly(alkylene oxide) polyol in the main chain of said poly-etherester.
Patent CA-1117849-A (CA)
Inventor: GRAHAM WILLIAM W
IPC: B27B17/00
Filed: 1980-02-15
Granted: 1982-02-09
Abstract: ABSTRACT OF THE DISCLOSURE           An attachment for a direct drive gasoline or electric powered chain saw for delimbing, thinning, pruning and brushing.  The attachment comprises a rigid bar of round cross-section which is secured to the blade of a chain saw at a point spaced a short distance towards the handle from the tip of the blade.  When so secured, the bar has a straight portion traversing the flat of the blade at an angle to the longitudinal axis of the blade, extending forwardly and downwardly with respect thereto and upwardly and rearwardly beyond the upper edge of the blade.  The bar lies substantially in a plane parallel to the plane of the blade.  A second portion of the bar projects beyond the lower edge of the blade and is bent in a gradual curve through an arc so that its end is parallel to the longitudinal axis of the blade.  The bar is secured to the flat of the blade by appropriate securing means and is preferably spaced from the surface of the blade.  A kickback guard may also be secured to the attachment to shield the upper front cutting surface of the chain saw from operative engagement with material to be cut.  The attachment provides an effective means for cradling small branches and the like to steady them while being cut while at the same time reducing kickback of the chain saw or damage to adjacent foliage or vegetation.
Patent CA-1156220-A (CA)
Inventor: HEAVNER GEORGE
IPC: C07K5/103
Filed: 1980-04-01
Granted: 1983-11-01
Abstract: ABSTRACT               METHOD AND COMPOSITION FOR            A method for solution synthesis of H-SAR-LYS-SAR-GLN-NH2  in good yield and compositions useful therein are disclosed.
Patent CA-1165492-A (CA)
Inventor: STEINBERGER HELMUT
IPC: C08J7/046
Filed: 1980-04-08
Granted: 1984-04-10
Abstract: Abstract of the Disclosure A coating composition to improve the abrasion and scratch resistance of plastics such as polycarbonate, consisting essentially of about A) 10-40% by weight of a partially hydrolyzed siloxane compound which is obtained by hydrolyzing in water at about 50-80°C over a period of about 1-12 hours at least one of (a)  a hydrocarbon-trialkoxysilane of the formula R1Si(OR")3 wherein R' is an alkyl group with 1 to 4 carbon atoms or a phenyl or vinyl group, and R" is an alkyl group with 1 to 4 carbon atoms, (b)  a co-condensation product of (a) and about 1 to 40% by weight of a phenyl- or vinyl-trialkoxysilane, the alkoxy group containing 1 to 4 carbon atoms, (c)  a co-condensation product of 1 mol of (a) and 0.05 to 1 mol of a tetraalkoxysilane, in which the alkoxy group contains 1 to 4 carbon atoms, and (d)  a co-condensation product of 1 mol of (a) and 0.05 to 1 mol of a dialkyldialkoxysilane, in which the alkyl and alkoxy groups contain 1 to 4 carbon atoms, B)  0 to 40% by weight of an aqueous dispersion of colloidal silicon dioxide, C)  0 to 5% by weight of an etherified methylolmelamine, D)  0.05 to 15% by weight of a blocked polyisocyanate, E)  0. 5 to 30% by weight of acetic acid, and F)  an inert organic solvene as the remainder.
Patent CA-1165644-A (CA)
Inventor: GOOSSENS JOHN C
IPC: C08J7/046
Filed: 1980-04-11
Granted: 1984-04-17
Abstract: ABSTRACT OF THE DISCLOSURE             A process for providing a protective coating on a polycarbonate substrate comprising (i) applying onto said polycarbonate substrate a priming emulsion composition containing (a) a thermosettable acrylic polymer, (b) an ultraviolet light absorber selected from the benzylidene malonates and cyanoacrylates, (c) water, and (d) a hydroxy ether or a lower alkanol; (ii) curing the thermosettable acrylic polymer thereby forming a primer layer containing a thermoset acrylic and an ultraviolet light screener on said substrate; (iii) applying a top coat composition containing a further curable organopolysiloxane; and (iv) curing said further curable organopolysiloxane thereby obtaining a thermoset organopolysiloxane top coat.
Patent CA-1151793-A (CA)
Inventor: CASEY DONALD J
IPC: G08G/
Filed: 1980-04-29
Granted: 1983-08-09
Abstract: TITLE            POLYVINYL ALCOHOL MODIFIED MELAMINE-FORMALDEHYDE PROTECTIVE COATING FOR NO-OVERLAY LAMINATE     ABSTRACT OF THE DISCLOSURE            The use of a  fully-hydrolyzed  polyvinyl  alcohol modified melamine-formaldehyde resin coating for the print sheet in a decorative laminate eliminates the necessity for an overlay  sheet  without  thereby  imparting  any  deleterious effects to the laminate itself.
Patent CA-1146941-A (CA)
Inventor: FISCHER EDGAR
IPC: C08F14/00
Filed: 1980-05-09
Granted: 1983-05-24
Abstract: Abstract:      Process for the manufacture of vinyl chloride polymers, agents for coating polymerization vessels and the poly-merization vessel coated with these agents The present invention relates, inter alia, to a process for the manufacture of vinyl chloride polymers by polymerization of the monomer or monomer mixture in aqueous dispersion using catalysts which form free radicals, and if appropriate suspension stabilizers, emulsifiers and other polymerization auxiliaries, which comprises carrying out the polymerization in a reactor in which the internal walls and remaining components on which polymer deposits can form are provided, completely or partly, with a coating containing certain compounds of the general formula   Substantial suppression of the formation of polymer deposits can be achieved according to the invention, especially in the case of vinyl chloride copolymers.
Patent CA-1139436-A (CA)
Inventor: ROSE ROBERT C
IPC: G11B27/10
Filed: 1980-05-30
Granted: 1983-01-11
Abstract: POSITIONING SYSTEM AND FORMATTING SCHEME FOR  MAGNETIC TAPE MEDIA            Abstract of the Disclosure A positioning system (30) for a magnetic tape system that utilizes a multiple record recording format wherein positioning data that marks the beginning of record segments (16), the beginning of the tape medium (11), and the ending of the tape medium (12) are pre-recorded at one-fourth of the bit density of work data (14, 15) so that positioning data may be more accurately read at a higher tape speed during a record seek mode of operation.  The system also includes detector circuitry (FIG. 5A, 5C) that is enabled only upon detecting positioning data and that identifies the positioning data as an inter-record mark signal, beginning of tape signal, or an ending of tape signal.  A tape drive controller (31) is responsive to the detection circuitry for controlling the speed and direction of the magnetic tape.
Patent CA-1123791-A (CA)
Title: Container for platelet storage
Inventor: WARNER WILLIS L
IPC: A61J1/00
Filed: 1980-10-08
Granted: 1982-05-18
Abstract: ABSTRACT OF THE DISCLOSURE           A plastic bag containing a platelet concentrate is disclosed wherein the viability of platelets remains at a high level even after storage at 22° C. for up to five days.  The bag in which the platelet concentrate is stored comprises walls of polyvinyl chloride film containing tri-2-ethylhexyl trimellitate as plasticizer together with epoxidized vegetable oils for heat stabilization of the film.  The film may also contain metal soaps in preferred formulations.
Patent CA-1142047-A (CA)
Inventor: ICHIKAWA TOSHIJI
IPC: C08F297/02
Filed: 1980-10-06
Granted: 1983-03-01
Abstract: Abstract of the Disclosure A syringe includes an outer cylinder, a gasket having at least one part which slidably contacts the inner wall of the cylinder and being made of an elastomer material including a block copolymer having styrene units at both terminal ends, and means for sliding the gasket inside the cylinder.  The slidably contacting part is compressed inside the cylinder at a compressibility C (%) of a predetermined range selected according to a particular inner diameter of the cylinder.  The product of the total contact area S (mm2) at the compressibility C (%) of the contacting part with the inner wall of the cylinder with the compressibility C (%) is about 350 to about 900.