baber/WOPTO huggingface dataset:
Patent CA-1084866-A (CA)
Title: Process for the production of high purity aqueous alkali hydroxide solution
Inventor: SEKO MAOMI
IPC: C25B1/46
Filed: 1976-07-09
Granted: 1980-09-02
Abstract: Abstract of the Disclosure A process for the electrolysis of an aqueous sodium chloride solution in an electrolytic cell comprising an anode compartment and a cathode compartment separated by a cation exchange membrane to obtain an aqueous sodium hydroxide solution having a sodium chloride content of up to 400 ppm in the cathode compartment at high current efficiency by carrying out the electrolysis so that the value of the expression:             (wherein F is 96,500 amp sec eq-1; C is the sodium chloride concentration in the anode compartment in eq.cm-3; Co is the sodium chloride limiting concentration in the anode compartment in eq.cm-3; K is the proportionality constant in sec cm-3ohm-1;          V is the voltage drop in the membrane; and tNa is the transport number of sodium ions in the membrane) is maintained not higher than 2.74 x 10-4 by controlling the difference of concentration (C - Co) in the range from 0 to 0.001 eq.cm-3.
Patent CA-1075518-A (CA)
Inventor: SCHROTER HERBERT
IPC: G03B27/62
Filed: 1976-10-14
Granted: 1980-04-15
Abstract: Abstract of the Disclosure This invention relates to a process for the transport through a copier of an original having a leading and a trailing edge, which com-prises transporting the original at least once along a path wherein it passes in the stated order a third point, an illumination zone, a fourth point, a first point, a second point and, if transported more than once, the first point again wherein if the trailing edge has not passed the third point when the leading edge passes the second point the path length between the first and second points is extended and wherein if the trailing edge has not passed the second point when the leading edge passes the first point the path length between the illumination zone and the first point is extended and wherein the speed of the original past the first point may be increased relative to its speed in the illumination zone at least while an extended path is followed between the zone and the first point and after the trailing edge has passed the second point. The invention also relates to an apparatus for performing the process.
Patent CA-1064902-A (CA)
Inventor: RHODES EUGENE E
IPC: F28F1/12
Filed: 1976-10-20
Granted: 1979-10-23
Abstract: A HEAT EXCHANGE DEVICE                     ABSTRACT OF THE DISCLOSURE         A heat exchange device having a vessel and heat transfer core means including at least two tubular conduits in fluid communication with the vessel, the tubular conduits being spaced apart to form an air passageway therebetween.          A spacer member is positioned between and in heat exchange relationship with the tubular conduits, the spacer member comprising a unitary strip of metal corrugated or folded back and forth to form a plurality of fin elements each having an essentially planar base member between the fold edges.  Each spacer member has its longitudinal axis in parallel relationship to the longitudinal axes of the tubular conduits with the fin elements dividing the air passageway between the conduits into a plurality of smaller passageways.          Each planar base member has a plurality of louvers therein, the louvers being integral with and extending laterally of the planar base members and arranged in groups having a support portion therebetween.         The improvement comprises the unitary strip of metal being very thin with a hem flange extending substantially the length of the strip through the support portions between groups of louvers.   The hem flange forms a support column in each planar base member adapted to resist buckling in a direction transversely of the planar base member.         The unitary strip of metal has an average thickness of 0.001 to 0.0008 inches minimum and the hem flange thickness is approximately triple the average metal thickness.
Patent CA-1061627-A (CA)
Inventor: LANDY JEROME J
IPC: A01K1/03
Filed: 1976-11-16
Granted: 1979-09-04
Abstract: A B S T R A C T           A laminar flow system and removable animal rack is disclosed in which the housing which includes a blower, plenum chamber, and filter is fixedly secured to a support sur-face.  The filter is open at at least one end, and a removable animal rack may be wheeled into position immediately adjacent the filter.  The unit may be constructed with the filter recessed so that the end walls overlap a portion of the animal rack; or with a filter in the front wall and the rear wall, so that animal racks may be positioned at both the front and the rear of the housing. Optionally, extensions may be placed on the end walls to reduce end effect or eddy currents from the ambient air entering into the laminar flow as the same passes filtered air over cages contained in the animal racks.  The proportions of the housing are greater than four to one for the ratio of the height to the depth, a height to width ratio of less than two to one, and a width to depth ratio of greater than three to one.
Patent CA-1080131-A (CA)
Inventor: BROAD BERNARD H
IPC: B01D29/11
Filed: 1976-12-17
Granted: 1980-06-24
Abstract: ABSTRACT OF THE DISCLOSURE           A tube pressure filter including an inner compartment having an inlet which comprises a substantially annular upwardly inclined passage extending around the lower end of the inner tubular body and having an outlet aperture debouching into the inner compartment.  The substantially annular, upwardly inclined passage is constructed and disposed so that, in use, feed material debouching from the outlet aperture has an upward component of velocity, and so that it is in communication with an ante-chamber into which a mixture to be pressure filtered can be introduced under pressure through a feed conduit, the feed conduit including or co-operating with a non-return valve which valve, when the tube pressure filter is in use, closes the bore of the feed conduit when the inner compartment contains a mixture under high pressure to prevent the flow back along the feed conduit of feed material.
Patent CA-1082386-A (CA)
Inventor: BENTLEY JOHN
IPC: C08L77/00
Filed: 1977-02-21
Granted: 1980-07-22
Abstract: Abstract of the Invention A process for manufacturing a stable dispersion in an organic liquid of particles consisting of (a) a polymer insoluble in the liquid and formed by polymerisation of monomer(s) at least one of which is solid at the polymer-isation temperature and (b) sub-particles of a solid modifying agent for the polymer, the process comprising dispersing the solid monomer and the modifying agent together in the liquid in the presence of a specified dispersing agent so as to form a stable dispersion of solid particles not larger than 50µ, and heating the dispersion together with any other monomers required, so as to bring about polymerisation, in the presence of a specified stabilising agent for the polymer formed.  The functions of dispersing agent and stabilising agent may be combined in a single substance.
Patent CA-1061183-A (CA)
Inventor: GRAM HANS
IPC: F04C2/10
Filed: 1977-02-24
Granted: 1979-08-28
Abstract: P A T E N T   A P P L I C A T I O N   of HANS GRAM     ROTARY GEAR PUMP.          Abstract of the Disclosure.       A rotary gear pump comprising two eccentrically arranged gear wheels of different sizes, of which the greater gear wheel is rotatably mounted in the generally cylindrical housing of the pump and the smaller gear wheel is mounted upon a shaft which is arranged eccentrically in the housing of the pump in such a way that the teeth of the two gear wheels, in the working condi-tion of the pump, are mutually engaged along an area of the inner circumference of the housing of the pump between the outlet of the pump and the inlet of the pump, and are arranged with an interspace between the top circles of the teeth along another part of the circumferences of the wheels, a blocking member being arranged in the interspace with one surface of the blocking member sealing against teeth of the smaller gear wheel and with another surface of the blocking member sealing against teeth of the greater gear wheel, wherein the shaft and the blocking member are mounted rotatably in the housing about the axis of the greater gear wheel together with an element of the housing wherein a duct is provided which, as seen in the circumferential direction of the housing, extends along an angle which is greater than the angle between the inlet of the pump and the outlet of the pump, said duct, moreover, being offset in the circumferential direction with respect to the area along which the greater and the smaller gear wheels engage.
Patent CA-1103783-A (CA)
Title: Compressor control
Inventor: STEWART WILLIAM S
IPC: F04D27/02
Filed: 1977-03-08
Granted: 1981-06-23
Abstract: 25196 COMPRESSOR CONTROL Abstract of the Disclosure Control of the main gas stream from a compressor is accomplished by automatically adjusting the amount of gas vented from the compressor output by a variable relief valve or other flow restriction means, with the speed of the compressor being automatically adjusted to maintain the compressor output at a level permitting effective control within the useful range of the venting system. In a preferred embodiment, the amount by which the position of the means used to restrict flow through the vent conduit departs from a desired operating range is used to generate a com-pressor acceleration signal which is in turn used to generate a compressor speed set point signal from which the compressor speed is controlled.
Patent CA-1063033-A (CA)
Inventor: CHANG LOUIS H
IPC: B41J1/24
Filed: 1977-04-15
Granted: 1979-09-25
Abstract: ABSTRACT OF THE DISCLOSURE         A serial printer comprises a carriage, a print member rotatably mounted to the carriage, a drive assembly coupled to the print member for rotating the print member in a desired direction and at a desired speed, and control apparatus coupled to the drive means for generating a control signal to control the direction and speed of rotation of the print member.   The control apparatus is capable of generating a first signal indicative  of the rotational movement of the print member.  Also, in response to a second signal indicative of a command to position the print wheel at a predetermined reference rotational position, the control apparatus applies a predetermined control signal to the drive assembly to rotate the print member in a predetermined direction and at a predetermined speed.  The control apparatus is also capable of generating a third signal each time a predetermined portion of the print member is rotated past a predetermined reference location, and of comparing the first signal with a predetermined third signal representative of a predetermined number of rotations of the print wheel portion past the pre-determined reference location.  The control apparatus is further responsive to the first and predetermined  third signals bearing a first relationship for stopping the print member at the predetermined reference rotational position, and responsive  to the first and predetermined third signals bearing a second relationship for continuing to apply the predetermined control signal to the drive assembly in order to continue to rotate the print member in the predetermined direction and at the predetermined speed.
Patent CA-1061409-A (CA)
Inventor: COCHRANE PETER
IPC: G01R31/02
Filed: 1977-06-07
Granted: 1979-08-28
Abstract: ABSTRACT  OF  THE  DISCLOSURE     A method and apparatus for testing for forward echoes produced by signal transmission through a length of trans-mission line in which a succession of 1 ns pulses are applied to the line and the output signals are multiplied by pulses delayed by a succession of discrete delay times.  The products resulting from 65,500 pulses subjected to the same delay are integrated to eliminate the effects of thermal noise and the results for different delay times plotted against the delay time to produce a correlation curve in which the echoes appear as perturbations on the curve.
Patent CA-1080225-A (CA)
Title: Process for improving the colour yield and fastness properties of dyeings produced with anionic dyes on cellulose fibre material and cationic fibre-reactive compounds
Inventor: PERRIN PIERRE
IPC: D06P1/66
Filed: 1977-06-14
Granted: 1980-06-24
Abstract: Abstract of the Disclosure A process for improving the colour yield and the wetfastness properties of dyeings produced on cellulose fibre material with anionic dyes, which process comprises treating the cellulose material before, during or after dyeing, with a cationic fibre-reactive compound of the formula   wherein B     represents a mono- or polynuclear heterocyclic radical, Hal   represents a reactive halogen atom, X     represents halogen, lower alkoxy, lower alkylthio, phenoxy, phenylthio, -NH2,   or the group of the formula         or          (1b), each of W1 and W2 independently represents the direct bond, -?-, -SO2-?-  or  -CO-?-, Z     represents hydrogen, lower alkyl or hydroxy-lower alkyl, each of Q1 and Q2 independently represents an aliphatic or cyclo-aliphatic radical, each of R1, R2, V1, V2, Y1 and Y2 independently represents lower alkyl, or lower alkyl or benzyl each of which is substituted by halogen, hydroxy or cyano, or each of the pair of substituents R1 and R2 and Y1 and Y2 together with the nitrogen atom to which it is attached independently represents a 5- or 6-membered heterocyclic ring, or each of R1, R2 and V1 and Y1, Y2 and V2 together with the nitrogen atom to which it is attached independently represents a pyridine ring, or, if W1 and W2 are -?-, each of Z and V1 and Z and V2 together with the group Z   or   independently also represents a divalent hetero-cyclic radical, An represents the anion of an organic or inorganic acid, and n     is 1 or 2, with the proviso that an optional aftertreatment of the cellulose material is carried out according to a padding process.
Patent CA-1109001-A (CA)
Inventor: HOLT WILLIAM H
IPC: B01D33/073
Filed: 1977-09-23
Granted: 1981-09-15
Abstract: ABSTRACT OF THE DISCLOSURE           A structure for dewatering solids utilizing a rotating cylindrical screen wherein the solids and water are directed to a portion of the rotating screen with the water passing into the interior of the screen and the solids ad-hering to the external surface of the screen.  Doctor means remove substantially all of the solids from the external surface of the screen, after which the screen is washed by the water which has entered into the screen, the water being directed by a baffle into a flowing stream which strikes the screen and passes therethrough in a concentrated mass.  The baffle is fixedly carried by a fixed shaft on which the screen is mounted for rotation.
Patent CA-1093084-A (CA)
Inventor: ROKACH JOSHUA
IPC: C07D285/10
Filed: 1977-10-11
Granted: 1981-01-06
Abstract: ABSTRACT OF THE DISCLOSURE         Compounds of the formula:            wherein R is an alkyl group of 1 to 16 carbon atoms, benzyl or phenyl having broad spectrum antibacterial and antifungal activity. They are especially useful in agriculture to protect plants against diseases such as leaf, stem, and fruit spotting, internal discoloration and decay of fruits and vegetables.  These compounds are particularly active against diseases caused by the genera Pseudomonas, Xanthomonas, Erwinia, and Corynebacterium.
Patent CA-1055450-A (CA)
Inventor: BUCK STANLEY E
IPC: B65D5/26
Filed: 1977-11-29
Granted: 1979-05-29
Abstract: DIE CUT TRAY                ABSTRACT OF THE DISCLOSURE             A blank or tray formed therefrom and including a bottom wall and side walls with the end walls formed by an end panel having a slit therein and by end flaps connected to the side walls and provided with upper and lower tabs. The structure of each flap is such that it may be folded along a diagonal fold-line to permit the upper tab to be moved into a position to be slid through the slot in the adjacent end panel and then the flap forced into a straight-ened position with the bottom tab received in a hole in the bottom wall.  If desired, a lid assembly may be provided; the lid assembly having tabs thereon adapted to be received within extensions of the slit through which the top tab is received.
Patent CA-1101848-A (CA)
Inventor: BEACCO ENZO
IPC: A61K31/48
Filed: 1977-12-02
Granted: 1981-05-26
Abstract: ABSTRACT OF THE DISCLOSURE            This invention relates to a new process for preparing new ergoline derivatives of the general formula (I)                 (I) wherein R1 is hydrogen or methoxy;        R2 is hydrogen or methyl; and X is hydroxy, R3COO, S-R4 or NR5R6 in which R3 is a straight or branched alkyl having from 1 to 6 carbon atoms, unsubstituted- or substituted-phenyl, the substituents being selected from the class consisting of chlorine, bromine, alkyl or alkoxy having from 1 to 4 carbon atoms, cycloalkyl containing from 3 to 6 carbon atoms, or a heterocycle;       R4 is phenyl or a heterocycle, and R5 and R6 are alkyl having from 1 to 4 carbon atoms, or together with the n atom to which they are attached, forming a heterocycle.  The heterocycle may be a 5- or 6-membered ring which contains from 1 to 3 hetero atoms selected from the class consisting of nitrogen, oxygen and sulphur, and may be saturated or unsaturated, and unsubstituted or substituted by halogen, alkyl having from 1 to 3 carbon atoms, hydroxy, nitro, amino, CONHNH2 and COOH.  These compounds possess a strong anti-prolactin activity in rats and a low emetic activity in dogs.  Prolactin is considered to be the only hypophysical hormone involved in the maintenance of the first part of pregnancy in rats.  They exhibit marked increase in activity over prior art preparation yet exhibit good tolerances.
Patent CA-1130230-A (CA)
Title: Hydrothermal alkali metal  recovery process
Inventor: CLAVENNA LEROY R
IPC: C10J3/46
Filed: 1978-01-24
Granted: 1982-08-24
Abstract: ABSTRACT OF THE DISCLOSURE      In coal gasification operation or similar conversion process carried out in the presence of an alkali metal-containing catalyst wherein solid particles containing alkali metal residues are produced, alkali metal constituents are recovered from the particles by treating them with a calcium or magnesium-containing compound in the presence of water under conditions to produce an aqueous solution containing water soluble alkali metal constituents. The aqueous solution recycled to the conversion process where the alkali metal constituents serve as at least a portion of the alkali metal constituents which comprise the alkali metal-containing catalyst.
Patent CA-1092484-A (CA)
Inventor: SMILGES ROBERT
IPC: F15B13/043
Filed: 1978-01-26
Granted: 1980-12-30
Abstract: Electrohydraulic Flow Control Apparatus ABSTRACT OF THE DISCLOSURE:   This invention relates to an electrically controlled flow control valve in which it is possible for the pilot fluid pressure which con-trols the main metering spool to build to full inlet pressure if necessary to initiate movement of the spool. An electrically operated solenoid operates a control poppet which regulates the pressure of the pilot fluid to position the metering spool.
Patent CA-1093616-A (CA)
Title: Control devices of the relay type
Inventor: LEWINER JACQUES
IPC: F16K31/02
Filed: 1978-04-04
Granted: 1981-01-13
Abstract: IN THE CANADIAN PATENT OFFICE                  PATENT APPLICATION entitled IMPROVEMENTS TO CONTROL DEVICES OF THE RELAY TYPE in the name of A public body corporate called: AGENCE NATIONALE DE VALORISATION DE LA RECHERCHE (A N V A R ) ABSTRACT OF THE DISCLOSURE            The invention concerns a switching device using electrets.          It comprises at least two electrodes(1, 2, 6)and at least two electrets 4, 5; control signals are applied between electrodes (between 10 and 10c) to cause a mobile element 6 carrying an electret to pass from one rest position to the other.          Application to electrical, pneumatic and optical switching.
Patent CA-1087390-A (CA)
Inventor: JUSTUS EDGAR J
IPC: D21F5/10
Filed: 1978-04-20
Granted: 1980-10-14
Abstract: ABSTRACT OF THE DISCLOSURE        A hollow cylindrical dryer drum having an outer surface with a working face for heat drying a traveling paper web with a plurality of axially extending bars on the inner surface of the drum and an annular ring dam positioned against the ends of the bars and spaced from one end of the drum to provide a condensate removal channel between the end of the drum and the ring.
Patent CA-1097135-A (CA)
Inventor: THEURER JOSEF
IPC: E01H1/14
Filed: 1978-04-21
Granted: 1981-03-10
Abstract: Abstract of the Disclosure A mobile apparatus for receiving and conveying ferrous rail fastening elements comprises a carriage driven along a track, a vertically adjustable carrier frame with rollers supporting one of the carrier frame ends for movement along the track, the other carrier frame end being supported on the carriage, magnetic drums mounted on the end carrier frame end and driven for rotation about an axis extending transversely to the track and associated with at least one track rail laterally thereof at both sides of the rail, and a con-veyor band arrangement mounted on the carrier frame, the conveyor band arrangement having a receiving end associated with the magnetic drums rearward thereof in the operating direction of the carriage.
Patent CA-1093386-A (CA)
Inventor: CICIN-SAIN IVO
IPC: E01B29/05
Filed: 1978-04-21
Granted: 1981-01-13
Abstract: ABSTRACT OF THE DISCLOSURE There is shown a mobile machine for the renewal of railroad tracks which includes a work tool carrying chassis to replace old ties by new ones. The machine comprises two wagons, one of which is arranged to transport stock and handle the materials necessary for the track replacement and one of the two wagons rolls and advances on the new reconstituted track.  The work tool carrying chassis is interposed between rolling supports of the wagons in a work zone and is suspended from a connecting member on each of the two wagons. The geometrical disposition of the supports and of the joints between the two wagons is such that the longitudinal axis of the tool carrying chassis, in the plane of the track, is automatically tangential with the longitudinal axis of the track.  One of the two wagons has two spaced apart rolling supports and is provided with an overhanging extension over the work zone in the form of a bracket terminating in a joint.  The second wagon is directly connected at one end to the joint and has a single rolling support spaced therefrom.  The work tool carrying chassis is suspended and joined at one end of the overhanging bracket of the wagon having two rolling supports and the other end of the tool carrying chassis is suspended and joined to the wagon having the single rolling support, between the joining point and the single rolling support.
Patent CA-1082862-A (CA)
Title: Powder metallurgy method for making shaped articles  and product thereof
Inventor: TAGLANG RICHARD J
IPC: B22F7/08
Filed: 1978-05-02
Granted: 1980-08-05
Abstract: ABSTRACT A shaped article is provided having a composite structure made up primarily of substrate which can be cold worked, if at all, only with a disproportionate amount of scrap and a cladding which is compatible with and highly ductile relative to the substrate and which at least during forming, particularly cold rolling, is thick enough and adherent to permit substantial reductions without exposing the hard-to-work substrate.  The article is made by filling a container with prealloyed metal powder having the composition desired in the substrate including an ingredient which makes it hard to work. The container has a compatible composition, the substrate composition without the hard-to-work ingredient being illustrated.  The container is then sealed, hot compacted, hot rolled and then cold rolled to final thickness to provide a shaped article having a substrate of the hard-to-work composi-tion with an integral cladding metallurgically bonded thereto. In an example, the substrate is made of type 304 stainless steel with 1.75% boron and the cladding is type 304 without a boron addition.