baber/WOPTO huggingface dataset:
Patent CA-1266270-A (CA)
Inventor: HUTCHISON ALAN J
IPC: C07D487/10
Filed: 1984-05-23
Granted: 1990-02-27
Abstract: IMIDAZOLIDINEDIONE DERIVATIVES            Abstract A series of novel spiro-oxindole imidazolidine-dione derivatives have been prepared, including their pharmaceutically acceptable salts.  These compounds are useful in therapy as aldose reductose inhibitors for the control of certain chronic diabetic complications. Preferred compounds include 6'-amino-spiro-[imidazolidine-4,3'-indoline]-2,2',5-trione, 5'-chloro-7'-amino-spiro-[imidazolidine-4,3'-indoline]-2,2',5-trione, 1'-(3-pyridylmethyl)-5'-fluoro-spiro-[imidazolidine-4,3'-indoline]-2,2',5-trione, 1'-(3-pyridylmethyl)-5',7'-dichloro-spiro-[imidazolidine 4,3'-indoline]-2,2',5-trione and spiro-[imidazolidine-4,3'-(6-azaindoline)]-2,2',5-trione.  Methods for preparing these compounds from known starting materials are provided.
Patent CA-1223111-A (CA)
Title: Dispositif de manutention et de pose d'un noyau d'emboitement pour machine de coulee centrifuge de tuyaux en fonte a emboitement
Inventor: FORT PIERRE
IPC: B22D13/10
Filed: 1984-05-23
Granted: 1987-06-23
Abstract: AUBREGE DU CONTENU TECHNIQUE DE L'INVENTION Dispositif de manutention et de pose d'un noyau d'emboitement pour machine de coulée centrifuge de tuyaux en fonte à emboitement, comportant un support monté basculant autour d'un arbre horizontal sur l'extrémité de la machine sous l'action d'un vérin, le dispositif comprend une couronne de préhension et de support du noyau pouvant pivoter sur le support autour d'un axe orthogonal à l'arbre sous l'action d'un vérin, la couronne étant disposée de mainière à rester toujours inclinée d'un angle aigu sur l'axe. Ce dispositif permet de présenter la couronne et les organes de support du noyau latéralement à un opérateur et inclinés à la manière d'un pupitre de façon ergonomique, facilitant ainsi la pose répétée de noyaux lourds en toute sécurité par l'opérateur.
Patent CA-1228597-A (CA)
Inventor: FELIX RAYMOND A
IPC: C07F9/38
Filed: 1984-06-25
Granted: 1987-10-27
Abstract: METHOD FOR PREPARATION OF N-PHOSPHONOMETHYLGLCYINE                Abstract of the Disclosure A method of preparing N-phosphonomethylglycine comprising;  (a) reacting N-hydroxymethyl halocetamide with a chlorinating agent, prefer-ably thionyl chloride to form N-chloromethyl haloacetamide;  (b) reacting N-chloromethyl haloacetamide with a phosphite to form N-haloacetylamino-methyl phosphonate; (c) reacting the phosphonate with derivative of halo-acetic acid to form N-haloacyl-N-(cyanomethyl or carboalkoxymethyl) phos-phonate; and (d) hydrolyzing this later phosphonate to yield N-phosphono-methylglycine.
Patent CA-1222818-A (CA)
Inventor: SCHWARTZ SIDNEY J
IPC: G11C19/08
Filed: 1984-06-28
Granted: 1987-06-09
Abstract: ABSTRACT OF THE DISCLOSURE    BUBBLE MEMORY WHICH TRANSFERS BUBBLES IN BOTH RIGHT-TO-LEFT AND LEFT-TO-RIGHT SPS LOOPS TO PROVIDE A SHORT ACCESS TIME        A bubble memory comprises a substrate with a major surface; a first storage means for storing bubbles on the left side of the surface having parallel inputs and parallel outputs; a second storage means for storing bubbles on the right side of the surface having parallel inputs and parallel outputs; a first input means on the left side of the surface including a serial-parallel track along which the bubbles move to the right to enter the parallel inputs of the first storage means; a second input means on the right side of the surface including a serial-parallel track along which the bubbles move to the left to enter the parallel inputs of the second storage means; a means for detecting bubbles disposed equally on the left side and the right side of the surface; a first output means on the left side of the surface including a parallel-serial track which receives bubbles from the parallel outputs of the first storage means and moves them to the right to the detector; and a second output means on the right side of the surface including a parallel-serial track which receives bubbles from the parallel outputs of the second storage means and moves them to the left to the detector.
Patent CA-1253512-A (CA)
Inventor: HINNEKENS HERVE
IPC: C07C29/149
Filed: 1984-07-09
Granted: 1989-05-02
Abstract: ABSTRACT OF THE DISCLOSURE                 PROCESS FOR PRODUCING ALCOHOLS            Disclosed is a process for producing alcohols, gene-rally either furfuryl alcohol by hydrogenation of furfural, or fatty alcohols by hydrogenation of fatty acids with correspon-ding numbers of carbon atoms or of their esters, at a pressure ranging from 20 to 100 bar, at a temperature ranging from 150 to 300°C, and in the presence of a catalyst consisting of a Cu-Cr mixture on the one hand, and of copper deposited on a support on the other hand.
Patent CA-1233836-A (CA)
Inventor: SHUFORD DAVID M SR
IPC: C04B41/87
Filed: 1984-07-31
Granted: 1988-03-08
Abstract: COMPOSITION AND METHOD FOR FORMING A PROTECTIVE COATING ON CARBON-CARBON SUBSTRATES            ABSTRACT OF THE INVENTION    In accordance with the invention, a composition of matter is provided for forming a coating for protecting carbonaceous substrates from degradation at elevated temperatures.  The composition of matter is a mixture of particulate silicon, silicon carbide and alumina.  The mixture contains between about 40% and 50% silicon by weight of the total composition, between about 30% and 50% silicon carbide by weight of the total composition and between about 20% and 30% alumina by weight of the total composition.  A method is provided for forming a primary protective coating on carbonaceous substrates utilizing the aforesaid mixture.  An enhancement coating is provided for sealing the primary coating in applications where the substrate will be subjected to elevated temperatures and temperature cycling.
Patent CA-1250662-A (CA)
Title: Video signal reproducing apparatus
Inventor: NAKAMURA YOSHIYUKI
IPC: H04N5/915
Filed: 1984-09-04
Granted: 1989-02-28
Abstract: ABSTRACT OF THE DISCLOSURE           A video signal reproducing apparatus having a driving mechanism for driving a magnetic tape on which a video signal is recorded as succeeding video tracks and a transducing head device for reproducing the video signal from the succeeding video tracks mounted on a cylindrical drum around which the magnetic tape is wrapped, the transducing head device having a bimorph plate and a transducing head mounted thereon is disclosed.          The apparatus includes a field memory for memorizing one field and two field previous video signals of the reproduc-ed video signal, a comparator for comparing a field identification signal of a reference signal with that of the reproduced video signal, a selector for selectively deriving one of the one field and two field previous video signals in response to an output signal of the comparator, an adding circuit for adding at least two succeeding horizontal line signals of the reproduced video signal and for generating an averaging video signal, a detector for detecting the movement of the reproduced video signal in response to the reproduced video signal and the output signal of the memory, a weighting circuit for generating a weighting signal corresponding to the output signal of the detector, a circuit for weighting the output signals of the adding circuit and the driving circuit in response to the weighting signal  and a circuit for combining the weighted output signal with the averaging video signal.
Patent CA-1235337-A (CA)
Inventor: WEBBER JERRY D
IPC: A01C7/04
Filed: 1984-10-03
Granted: 1988-04-19
Abstract: FLEXIBLE VACUUM SEAL Abstract of the Disclosure In a seed meter in which a vacuum source is coupled to the interior of a generally cylindrical housing in which a seed disk is rotatably mounted, a seal in the form of an endless loop is mounted within the housing so as to extend between an inner wall of the housing and a side surface of the seed disk so as to confine the vacuum from the vacuum source to a selected portion of the seed disk.  The seal has a first portion of the length thereof extending around a major portion of a circle on the opposite side of a circumferential array of apertures in the seed disk from the axis of rotation of the seed disk and a second portion of the length thereof extending across the circumferential array of apertures and into a region adjacent the axis of rotation to isolate a seed discharge chamber on the other side of the seed disk from the vacuum source.  The seal has a base portion extending along the length thereof and releasable mounted within a holder mounted on the inner wall of the housing, the base portion having ribs in the opposite sides thereof which fit into mating grooves in the sidewalls of the holder.  The seal also has a thin lip portion along the length thereof which emanates from an edge of the base portion opposite the inner wall of the housing and which extends in a direction outwardly and away from the axis of rotation of the disk and into contact with the side surface of the disk.
Patent CA-1221174-A (CA)
Inventor: GABLE MELVIN G
IPC: H04L29/00
Filed: 1984-10-31
Granted: 1987-04-28
Abstract: ABSTRACT A data  communication system for  providing  data transmission   between   a plurality   of   individually addressable local computer networks,  by utilizing single node switching across a common passive bus medium.   The passive bus medium is characterized as having a plurality of  separate conductors of  limited  length  that are each commonly  connected  to  individual  bus  interface  circuits for each local  computer  network.   Each  bus  interface circuit has a number of dedicated address  data  ports, message data ports and control ports that are connected to separate dedicated conductors of  the passive bus medium for transmitting data to  and  receiving  data from other local  computer  networks.   Each  message  transmission  of data on the passive bus medium is divided into a number of mini-packets each of which contain a number of parallely transmitted bits corresponding to the number of dedicated address and message conductors in the passive bus medium. Each mini-packet is separately transmitted on the passive bus medium and separately acknowledged by the designated receiving bus interface circuit,  Minipackets are of two types for each message.  The first group of mini-packets precedes the second group and contains destination address in its header portion and word count information in its message  portion.   The second  group  constitutes   the remainder  of  the  message  and  each  mini-packet  of  this group contains the source address  in the header portion and message data in the message portion.
Patent CA-1236940-A (CA)
Inventor: HAGGERTY WILLIAM T
IPC: H04N1/40
Filed: 1984-11-05
Granted: 1988-05-17
Abstract: ABSTRACT A color to monochromatic image transformation which transforms each color area of the original image into a corresponding area of a monochromatic image having a particular pattern of 'light' and 'dark' dots corresponding to and representing the original color of the area.  The dot patterns are selected to provide both gray scale representations of the original colors and differing textural appearances for each color, so as to maximize the discrimination, or distinction, between the areas of the monochromatic image.  That is, the transformation of the present invention provides an approximation to gray scale representation, in the overall gray scale appearance of the dot patterns, but adds an additional dimension of texture.  The monochromatic dot patterns do not necessarily correspond exactly to the colors or gray scale values of the original colors, but are selected to provide visual impressions analogous to the visual impressions provided by the corresponding original colors.  A further feature of the dot arrays selected to represent various colors is that the patterns of dots are selected for each array so as to avoid the creation of artifacts, that is, the formation of accidental or incidental patterns and figures within a given array or at the junction or border between two arrays.
Patent CA-1256310-A (CA)
Inventor: GAREL-JONES
IPC: G02B6/26
Filed: 1984-11-09
Granted: 1989-06-27
Abstract: BANDWIDTH ENHANCEMENT OF MULTIMODE OPTICAL TRANSMISSION LINES       Abstract of the Disclosure To improve pulse dispersion of a multimode fiber transmission line, it is spliced to a short length of fiber adapted to strongly attenuate mode groups propagating near the core center.     - i -
Patent CA-1221025-A (CA)
Inventor: RUSSELL MICHAEL K
IPC: E21B47/18
Filed: 1984-11-13
Granted: 1987-04-28
Abstract: S P E C I F I C A T I O N           "Improvements in or Relating to Apparatus for Signalling within a Borehole while Drilling"          ABSTRACT OF THE DISCLOSURE           A down-hole signal generator for a mud-pulse telemetry system comprises an annular impeller surroun-ding a casing and arranged to be driven by the mud passing along the drill string.  The impeller serves to drive a torque control arrangement, and preferably also an electrical generator, within the casing.  The torque control arrangement is switchable between two states by a signalling actuator in response to an electrical input signal.  In a first state the impeller may be driven relatively easily so that it is rotated at a relatively fast speed by the mud flow, whereas, in a second state, a greater torque is required to drive the impeller so that it is rotated at a relatively slow speed.  Thus suitable variation of the input signal may be used to vary the impeller speed to transmit a modulated pressure signal in the mud flow which may be sensed at the surface.
Patent CA-1225100-A (CA)
Inventor: MAENDER OTTO W
IPC: C07C209/00
Filed: 1984-11-30
Granted: 1987-08-04
Abstract: ABSTRACT OF THE DISCLOSURE           Nitrodiarylamines, useful as intermediates, are produced by combining a formyl derivative of an aromatic  primary  amine  with  a  nitrohaloarene,  at condensation       temperature       for       forming nitrodiarylamine,    and   adding   an   alkoxide   or cycloalkoxide of an alkali metal, excluding lithium.
Patent CA-1232921-A (CA)
Inventor: GIBB JAMES L
IPC: E21B43/267
Filed: 1985-01-17
Granted: 1988-02-16
Abstract: ABSTRACT The invention relates to a particulate ceramic made from raw materials which comprise about:  50-97 parts by weight of mineral particulates;  3-50 parts by weight alumina; and at least one part by weight binder; wherein the mineral particulates comprise a ceramic mineral which melts below about 1300°C., does not substantially sublime or volatilize below 1300°C., vitrifies upon cooling, and has a fired density of less than about 2.9 grams per cubic centimeter; wherein the binder is characterized by adhering the mineral par-ticulate and alumina powder together after pelletizing but before firing, and wherein the particulate ceramic itself is characterized by:  (i)  a concen-tration gradient of alumina from the center to the surface of the particles; and (ii) a fired density less than about 2.9 grams per cubic centimeter.  The invention finds use as a proppant in hydraulic fracturing.  The invention also relates to the fracturing of subterranean formations surrounding wells using the new particulate material described herein.
Patent CA-1226599-A (CA)
Inventor: STAPLES PAUL R
IPC: H01H3/16
Filed: 1985-01-18
Granted: 1987-09-08
Abstract: DOOR OPERATED SWITCH ASSEMBLY    Abstract of Disclosure A plunger which opens and closes a switch is actuated by a hollow switch button which is trapped between a switch housing and a post which carries the plunger.  An edge of the post bearing against the inside corner of the hollow button and the chamfered ends of the button flanges bearing against the intersection of the open end housing walls and a rim extending from the walls provide the button pivot axis to actuate the plunger.  The switch includes two resilient blades one of which is longer than the other.  One end of each blade is fixed with their distal ends pointed toward and overlapping each other.
Patent CA-1266773-A (CA)
Inventor: SMITH RICHARD D
IPC: F26B5/06
Filed: 1985-04-24
Granted: 1990-03-20
Abstract: TREATMENT OF WATER DAMAGED CELLULOSIC MATERIALS                    ABSTRACT       A process for treating water damaged cellulosic materials, particularly books, is provided, which process comprises freezing the water throughout the extent of the cellulosic materials and subliming the water from the materials to dryness at temperatures below freezing.  The process can provide effective fumigation of cellulosic materials.
Patent CA-1274087-A (CA)
Inventor: TINNES BERNHARD
IPC: B22D37/00
Filed: 1985-06-21
Granted: 1990-09-18
Abstract: ABSTRACT         Pivotal or Rotary Sliding Gate Valves A pivotal sliding gate valve for the outlet of a metallurgical vessel includes a fixed base plate with two flow openings 2a and 2b of which one 2a is a registry with a valve inlet sleeve 1 and a movable sliding plate 3 with two flow openings 3a and 3b which are selectively movable into registry with the said one flow opening 2a in the base plate 2.  The sliding plate is also movable into a position in which the valve is closed and in which its flow openings are symmetrically disposed with respect to the said one flow opening 2a in the base plate.  The line 5 connceting the axes of the two flow openings 2a and 2b in the base plate 2 extends substantially perpendicular to the line connecting the axes of the two flow openings 3a and 3b in the sliding plate 3 when the valve is in its said closed position.
Patent CA-1263598-A (CA)
Title: In vitro detection of gastrointestinal cancer
Inventor: LINNANE ANTHONY W
IPC: G01N33/53
Filed: 1985-06-24
Granted: 1989-12-05
Abstract: ABSTRACT OF THE DISCLOSURE           An in vitro diagnostic method for detecting the presence in a patient of cancer cells or other cells producing mucin antigens comprises the step of testing a sample of a physiological fluid, particularly a sample of blood, blood serum or blood plasma, taken from the patient to detect the presence of small intestine mucin antigen (SIMA) and/or large intestine mucin antigen (LIMA) in the sample.  An in vitro diagnostic kit is also disclosed.
Patent CA-1206553-A (CA)
Title: Telemetry system with signal booster for digital data transmission through a transmission line
Inventor: HARRIS ROBERT W
IPC: H04L7/00
Filed: 1985-08-01
Granted: 1986-06-24
Abstract: ABSTRACT OF THE DISCLOSURE       A telemetry system for sensing remote physical events and for transmitting and boosting a digital data signal representing the sensed events on a transmission line, which comprises a master clock and a plurality of sensing stations for sensing local data.  The sensing stations inject local data onto the transmission line as a digital data signal, and a controller/receiver receives the digital data. The master clock initializes the system timing and generates a sync signal.  Each sensing station includes a booster subsystem for receiving the focal digital data and for injecting the digital data onto the transmission line as a digital data signal.  During system start-up, each booster subsystem claims a slot, in accordance with an organizational process, for injecting the digital data signal onto the transmission line.
Patent CA-1258899-A (CA)
Inventor: BROWN MICHAEL G
IPC: G02B6/38
Filed: 1985-11-19
Granted: 1989-08-29
Abstract: ALIGNING ARRAYS OF OPTOELECTRONIC DEVICES        TO ARRAYS OF OPTICAL FIBERS            Abstract:          Linear arrays of optical fibers are aligned to linear arrays of optoelectronic devices (e.g., photodiodes, diode lasers of LEDs) formed on an elongated chip.  The alignment procedure results in an elongated chip.  The alignment procedure results in a subassembly which includes fiber segments embedded between V-groove mounting blocks and the device array chip affixed to an end face of the blocks.
Patent CA-1263708-A (CA)
Inventor: AKERBERG DAG E
IPC: H04L1/00
Filed: 1985-11-25
Granted: 1989-12-05
Abstract: ABSTRACT OF THE DISCLOSURE           In a method of receiving messages transmitted by radio in the form of coded characters, particularly a receiver for personnel location, a message is stored in blocks together with an error indication, and the same message when repeated is stored in a register.  h final version of the message is constructed by com-bining the blocks associated with the stored messages and containing the least number of errors, if possible error-free blocks.  For gui-dance in the combination of blocks from different messages, an identity code is inserted in each message.  Characters are inserted in the messages to indicate a repeated message, the number of blocks in the messages, and that several messages are to be joined into a continuous message.
Patent CA-1242228-A (CA)
Inventor: ZWEINIGER HANSJURGEN
IPC: B60R7/04
Filed: 1985-12-04
Granted: 1988-09-20
Abstract: Abstract A storage apparatus carried inside interior panels of motor vehicles is provided.  The apparatus has a storage container which is open towards the interior of the panel and which is movable forwardly and downwardly in through guide levers arranged in a parallelogram.  The apparatus overcomes dead center in a closed position flush with the panel and is spring-mounted on first stops through lever arms articulated on the panel at one end and on the storage container at the other end and is further mounted by a spring and shock absorber arrange-ment cooperating with the guide levels which is lockable on two stops in an opened position projectiong from the panel.  Specifically, two forward, laterally outer lever arms and a rear, triangularly shaped lever arm disposed parallel to the approximately vertical rear wall of the container are provided, and a spring and bell-crank lever arrangement engages below on a support point mounting on the panel and above on a transverse bar of the triangu-larly shaped lever arm.
Patent CA-1262655-A (CA)
Inventor: CAPODICASA GAETANO
IPC: B30B9/30
Filed: 1986-02-20
Granted: 1989-11-07
Abstract: Abstract:   Apparatus for the treatment of domestic refuse to convert it into a solid odourless and non putrefiable residue of reduced weight and volume, comprises a sealable casing housing a process cylinder provided with means     for compacting refuse introduced therein, and heater means for raising the temperature within the process cylinder to a level such as to vaporise any liquids contained in the refuse, the casing also housing extractor means for removing vapours, gases and fumes generated upon incineration of the refuse, and being provided with an upper door for the introduction of domestic refuse, and a lower door for the withdrawal of residues obtained after treatment.
Patent CA-1244985-A (CA)
Inventor: SANTER JAMES O
IPC: C09D167/00
Filed: 1986-02-25
Granted: 1988-11-15
Abstract: HIGH SOLIDS CURABLE RESIN COATING COMPOSITION                   ABSTRACT A high solids curable polymer resin coating composition comprising mixed ether aminoplasts con-taining C8 to C12 alkoxymethyl and methoxymethyl groups and a hydroxy-containing resin.  The coating composition provides improved intercoat adhesion and cross-link density.  Examples of the hydroxy-con-taining resin are acrylic, alkyd and polyester resins.
Patent CA-1268301-A (CA)
Inventor: WILFINGER WERNER
IPC: C09C1/62
Filed: 1986-06-19
Granted: 1990-05-01
Abstract: ABSTRACT OF DISCLOSURE          The invention is concerned with stabilized metal pigments, in particular aluminum pigments, particularly against water and moisture, with improved resistance charac-teristics in aqueous paints.  The stabilization of the metal particles is carried out through treatment with carboxyalky-lene phosphoric acid esters, and/or carboxyalkylene phosphonic acids, and/or carboxyalkylene phosphinic acids.  The carboxy-lic group of the compounds can be at least partially neutra-lized if desired.