baber/WOPTO huggingface dataset:
Patent CA-1049018-A (CA)
Inventor: DAUM GERHARD
IPC: C07D295/023
Filed: 1976-04-29
Granted: 1979-02-20
Abstract: ABSTRACT OF THE DISCLOSURE:        A process for the production of 3-methyl pyridine start-ing from 2-methyl-5-diaminopentane or from a mixture  of 2-methyl-1,5-diaminopentane and 3-methyl pyperidine.  In this process, the starting material is dehydrogenated with a dehy-drogenation catalyst at temperature of from 200 to 400°C.
Patent CA-1062651-A (CA)
Inventor: AVEDESIAN MICHAEL M
IPC: C25C7/00
Filed: 1976-05-11
Granted: 1979-09-18
Abstract: ABSTRACT OF THE DISCLOSURE     A process and an apparatus for electrowinning metal from metal bearing solutions is disclosed.  A support solution containing a predetermined metal concentration is continuously recirculated through a cell having a porous grid supporting a bed of particulate conducting particles at a sufficiently high flow rate so as to fluidize and expand the bed by 5 to 25%.  A gas is continuously fed through the bed of conducting particles so as to strongly agitate the particles at low bed expansion to maintain good mixing and uniform fluidization of the bed of par-ticles.  The cell includes an electrode arrangement suspended from the top of the cell and immersed into the bed of fluidized conducting particles.  Such electrode arrangement consists of at least one cathode feeder electrode in physical contact with the fluidized particles to make the particles cathodic and so cause the metal ions to deposit on the particles, and at least one ano-de electrode separated from the cathodic particles by a membrane which allows the free passage of ions while preventing, physical contact with the particles.  To make the process continuous or semi-continuous, the cell has an inlet for adding small seed par-ticles and an outlet adjacent to the bottom for withdrawing large product particles.
Patent CA-1075858-A (CA)
Title: Method and device for impregnation of fiber material before cooking by means of pulsation of pressure between digester pressure and a lower pressure
Inventor: RICHTER JOHAN C F C
IPC: D21C7/06
Filed: 1976-05-27
Granted: 1980-04-22
Abstract: ABSTRACT Method for continuous disgesting of containing containing material with a liquid by means of alternating pressure to obtain preimpregnation of the fiber material in a liquid-filled feeding-in impregnation vessel between a digester and a feeding device, which is equipped with a device for separating off a liquid quantity which is recirculated to the feeding device for transport of more fiber material and which is connected with the digester through a repeated periodically opening and closing valve device, characterized in that the pressure in the impregnation vessel is alternating between the pressure in the digester, and a lower pressure obtained by removal from the impregnation vessel of a volume of liquid by means of the negative pumping action of the feeding device.
Patent CA-1067914-A (CA)
Inventor: CROPLEY JEAN B
IPC: C07C67/00
Filed: 1976-05-28
Granted: 1979-12-11
Abstract: ABSTRACT OF THE DISCLOSURE             The invention involves controlling reaction conditions of a highly exothermic reaction to produce oxygenated two carbon atom compounds such as acetic acid, acetaldehyde and ethanol.
Patent CA-1060266-A (CA)
Inventor: BALL ROWLAND E
IPC: F16J15/34
Filed: 1976-06-08
Granted: 1979-08-14
Abstract: ABSTRACT             A multi-flow, multi-path heat exchanger which surrounds the shaft of a coolant pump and is located between the pump impeller and a mechanical seal assembly for cooling hot liquid from the pump chamber flowing along the shaft to the mechanical seal assembly. The heat exchanger finds particular use with high-temperature, high-pressure pumps or with other pumps in which similar heat problems occur.
Patent CA-1065652-A (CA)
Inventor: NICHOLSON FREDERICK
IPC: B23K35/30
Filed: 1976-07-09
Granted: 1979-11-06
Abstract: ABSTRACT OF THE DISCLOSURE   A weld metal deposit which is not subject to solidification cracks and which is highly wear-resistant, also to the hot wear to which hot forming tools are subjected.  The weld metal deposit consists of an air-hardening alloy steel containing 0.55 to 2.0% carbon, 0.2 to 4.0% silicon, 0.2 to 3.0% manganeses, 4.0 to 6.5% chromium, 2.5 to 15.0% columbium, 0 to 3.5% strong carbide formers other than columbium, 0 to 0.5% nickel, and remainder iron with or without incidental impurities.  The choice of the contents of carbon and niobium is restricted by a provision concerning the relation between said contents.
Patent CA-1090869-A (CA)
Inventor: BERGMAN NORMAN J
IPC: G03G15/08
Filed: 1976-08-13
Granted: 1980-12-02
Abstract: APPARATUS AND METHOD FOR MEASUREMENT OF THE RATIO OF TONER PARTICLE ELECTROSTATIC CHARGE TO TONER PARTICLE MASS IN ELECTROSTATOGRAPHIC DEVICES                   ABSTRACT OF THE DISCLOSURE            Apparatus and method for measurement of the ratio of the triboelectric toner particle charge to the toner particle mass in electrostatographic apparatus.  The ratio of the toner particle charge to the toner particle mass is determined by combining a measurement of the difference between the electrostatic photoreceptor potential in the presence and in the absence of charged toner particles with a measurement of a difference in optical reflectance in the presence and in the absence of charged toner particles.  The measurement of the difference in the electrostatic potential of the photoreceptor provides a quantity proportional to the toner particle charge per unit area.  The measurement of the difference in optical reflectance provides a quantity related to the toner mass per unit area, a quantity that is linear for low particle densities.  Combining the two difference measurements provides a quantity proportional to the toner charge per toner mass.          The ratio of toner particle electrostatic charge to toner particle mass can be utilized to preserve the quality of an electrostatographically reproduced image.  Apparatus is disclosed for deriving a signal related to the toner charge to toner mass during electrostatographic processing.  The derived signal can provide a feed back control signal for maintaining the ratio of the toner particle charge to toner particle mass in an acceptable range, for example, by con-trolling the ratio of the toner particles and the carrier particles in the developer mixture.
Patent CA-1050171-A (CA)
Inventor: NAKATA JOSUKE
IPC: H01L35/00
Filed: 1976-10-15
Granted: 1979-03-06
Abstract: ABSTRACT OF THE DISCLOSURE          The invention provides a heat sensitive switch responsive at low temperature values.  According to the invention, there is provided a heat sensitive semiconductor switch including two islands of one conductivity type diffused side by side into one face of a substrate of opposite conductivity type and a high thermal carrier generation region diffused from the opposite face of the substrate into the PN junction of one of the islands.
Patent CA-1088891-A (CA)
Title: Method of and apparatus for heating up a chamber of a  coking battery
Inventor: LAGEMANN GUENTHER
IPC: C10B29/06
Filed: 1976-11-08
Granted: 1980-11-04
Abstract: ABSTRACT OF THE DISCLOSURE              After replacement of the walls of one chamber of a coking battery this one chamber is heated up by withdrawing re-latively hot air from another still-hot chamber of the coking battery and injecting it into the cold chamber, This is done by means of a conduit extending between the two chambers and pro-vided with an internal nozzle that conducts hot gas from the hot chamber to the cool chamber by jet-pump action, This hot gas is mixed with relatively cool air so as slowly to heat the cool: chamber up.
Patent CA-1060178-A (CA)
Inventor: STANGER COLIN N
IPC: E04D3/362
Filed: 1977-03-29
Granted: 1979-08-14
Abstract: CANADA                    "ROOFING PANELS"          Abstract of the Disclosure An elongate roofing panel for assembly on a support structure with a plurality of like panels to form a roof covering.  The panel has a first elongate edge adapted to be fixed to the support structure; and a second elongate edge opposite to the first elongate edge, adapted to engage the first elongate edge of an adjacent panel to restrain the second edge against movement normal to the plane of the panel.  The elongate edges are formed as respective first and second beam elements projecting on opposite sides of the panel for supporting the panel on the support structure, and the panel is formed with ribs spanning transversely between the beam elements for transmitting thereto the load of the panel.  Ideally the panel also serves as a solar heating panel, the ribs defining transverse ducts in which a fluid is heated as it is conveyed across the panel from an entry to an exit duct, these latter extending longitudinally from one end of the panel to the other.
Patent CA-1058428-A (CA)
Inventor: GREENBERGER JOSEPH I
IPC: G01L5/04
Filed: 1977-04-01
Granted: 1979-07-17
Abstract: ABSTRACT OF THE DISCLOSURE            A strip contacting device used between stands of a rolling mill for simultaneously performing combined modes of operation, such as a shapemeter/looper or a shapemeter/tensiometer.  It consists of a frame with a pivotal arm connected to a piston cylinder assembly, whereby a desired mode can be carried out by using a shapemeter roller and allowing the arm to either float or assume a fixed position relative to the passline of the mill.
Patent CA-1090503-A (CA)
Inventor: DOBSON DERRICK C
IPC: C09C1/34
Filed: 1977-04-18
Granted: 1980-12-02
Abstract: ABSTRACT OF THE DISCLOSURE        A process for the manufacture of an improved chrome pigment which comprises the simultaneous treatment of an aqueous suspension of a chrome pigment with two treating agents which are (i) metaphosphoric acid or a water-soluble salt thereof and (ii) a water-soluble zinc salt.
Patent CA-1088354-A (CA)
Inventor: EITEL RICHARD P
IPC: G02C7/16
Filed: 1977-05-04
Granted: 1980-10-28
Abstract: ABSTRACT OF THE DISCLOSURE           An optical device for aiding an individual wearing the device to concentrate his vision on an object is provided.  A head mount has a see-through zone of a shape and size so that the horizontal end portions of the zone will merge as an image defining a target frame into which the user can center a stationary or moving target by keeping his line of sight property on the target.  Means are also provided to permit positioning of the head mount centered in front of the viewer's eyes so as to accomplish the above objects.
Patent CA-1063912-A (CA)
Inventor: POEHLMAN ARTHUR G
IPC: F16D43/202
Filed: 1977-06-17
Granted: 1979-10-09
Abstract: ABSTRACT OF THE INVENTION         Disclosed herein is a clutch comprising a drive member adapted to be mounted for rotation and having one or more clutch teeth, a driven member having one or more clutch teeth adapted to drivingly engage the drive member clutch teeth and being mounted for rotation coaxially with the drive member, one of the drive and driven members being mounted for axial movement relative to the other between a released position wherein the drive and driven members are disengaged and a driving position wherein the drive and driven members are in driving engagement to afford transmission of torque therebetween with the clutch teeth coacting to produce a separating force directed axially in one direction and tend-ing to axially displace the one of said drive and driven members toward the released position, and a resilient element interacting with the one of the drive and driven members and being movable between a first position wherein the resil-ient element yieldably resists axial displacement of the one of the drive and driven members toward the release position and a second position which is spaced from the first position so as to permit movement of the one of the drive and driven members to the released position, the resilient element being moveable from the first position to the second position when the axially directed separating force exceeds a predetermined level, and the resilient element remaining in the second position in the absence of a reset force applied thereto in the direc-tion opposite from the one direction.
Patent CA-1075083-A (CA)
Inventor: HEISLER WILLIAM C
IPC: B65G7/02
Filed: 1977-09-26
Granted: 1980-04-08
Abstract: ABSTRACT OF THE DISCLOSURE     An automatic loader and unloader for an elevator includes a stationary frame, a main carriage movable in either direction relative to the stationary frame, and a coupler carriage movable in either direction relative to the main carriage.  The main carriage is slidably disposed on the stationary frame by a bearing arrangement which provides a cantilever support for the main carriage when the main carriage is extended.  The main carriage and the coupler carriage are extended and retracted by two pair of cables effects movement of the main carriage and coupler carriage in the other direction.
Patent CA-1090129-A (CA)
Inventor: STOVER WILLIAM H
IPC: C10L1/32
Filed: 1977-10-07
Granted: 1980-11-25
Abstract: ABSTRACT OF THE DISCLOSURE         Petroleum fuel compositions having a kinematic viscosity ranging from about 40 Saybolt Seconds Universal at 38°C. to about 300 Saybolt Seconds Furol at 50°C., e.g. residual fuel oils of grade numbers 4, 5 and 6, which contain dispersed sedimentary asphaltic constituents are stabilized against sedimentation of said constituents by the addition of a minor but sediment-stabilizing proportion of an alkylaryl sulfonic acid having from about 10 to 70 carbons for example, C28-C32 monoalkyl benzene sulfonic acid.  The sediment-stabilizing property of the alkylaryl sulfonic acid is particularly useful for blends of distillate petroleum fractions and residua (including reduced crude) wherein said blend contains from about 5 to about 15 weight percent of residua, based on the total weight of said blend.
Patent CA-1096333-A (CA)
Inventor: BOOMUS MARY
IPC: C12M1/22
Filed: 1977-10-11
Granted: 1981-02-24
Abstract: ABSTRACT OF DISCLOSURE         In accordance with the invention there is provided a petri dish comprising a container for the growth of microorganism cultures and a lid for the container to prevent the entrance of contaminants, each of the container and lid having a radially outwardly extending flange, these flanges and the container and lid being so shaped and dimensioned as to enable easy manual removal and reapplication of the lid to the container with the use of only one hand by the person tending to the petri dish thereby leaving the other hand free to administer the micro-organism specimen and other ingredients to the dish.
Patent CA-1062483-A (CA)
Inventor: MITCH GEORGE C
IPC: F25B31/00
Filed: 1977-12-06
Granted: 1979-09-18
Abstract: ABSTRACT      A hermetic rotary refrigerant compressor is provided with means for handling the oil and refrigerant vapor mixture to provide sufficient cooling of the motor without external precoolers and related conduits and apparatus.  In a preferred embodiment, the oil is collected and caused to flow along a portion of the internal surface of the hermetic shell in such a way that the shell itself functions as a heat exchanger. The heat is transferred through the shell to the cooler ambient air in contact with the external surface thereof.
Patent CA-1101055-A (CA)
Inventor: DEMAREST DONALD M
IPC: H02J3/36
Filed: 1977-12-15
Granted: 1981-05-12
Abstract: ABSTRACT OF THE DISCLOSURE      In an HVDC electric power delivery system having power converters arrayed at opposed ends of an HVDC power conductor link there is provided a floating current order control subsystem which supplies an input control signal to the regulator of each converter.  This signal represents the magnitude of the sum of the direct current flowing in the power conductors and a predetermined current margin, the polarity of the signal being determined by the direction of power flow.           The subsystem also employs a limiter which functions to limit the rate and extent of change in the floating current order control signal within predetermined bounds so as to maintain the load current within preset maximum and minimum values.
Patent CA-1089322-A (CA)
Inventor: KAMO YOHICHI
IPC: F04D13/08
Filed: 1977-12-22
Granted: 1980-11-11
Abstract: ABSTRACT OF THE DISCLOSURE           A sewage pump assembly includes a sewage pump having an inlet port; and a substantially vertical pipe connected to the inlet port of the sewage pump, and extending up to a predetermined level relative to the sewage pump.  The vertical pipe has a first inlet opening directed upwardly at its top end, and a second inlet opening extending in a predetermined length from the top end along the vertical pipe.  The vertical pipe is connected through a long vertical suction pipe to the inlet port of the sewage pump.  Floating material on the filthy water can be sucked into the first and then second inlet openings of the vertical pipe for along time required for the water level of the filthy water to change from a level slightly higher than the first inlet opening to another level adjacent to the lower end of the second inlet opening.
Patent CA-1098303-A (CA)
Title: Method of producing a dielectric with perowskite structure
Inventor: HENNINGS DETLEV
IPC: H01G4/12
Filed: 1977-12-22
Granted: 1981-03-31
Abstract: ABSTRACT:          By adding compounds which form in the temperature range of 1000 to 1250°C the eutectics Cu0.Cu20  or Cu0.Cu20 MeIV02 to materials having a perowskite structure results in a reduction of the sintering temperature of the perowskite ceramic to 1050 to 1185°C. For the perowskite ceramic the relevant materials are alkaline earth titanates, -zirconates, -stannates and mixed crystals thereof; MeIV02 represents the oxides of the elements of group IV of the periodic system of elements.
Patent CA-1114503-A (CA)
Inventor: LOHSTROH JAN
IPC: G11C11/08
Filed: 1977-12-22
Granted: 1981-12-15
Abstract: ABSTRACT     A random access memory (RAM) in which each memory cell includes a JFET having two gate electrodes selectable by means of a single word line and a single bit line. The JFETs have a common electrode formed from the substrate of a semiconductor body common to each of the memory cells, which serves as one of the main electrodes of each of the JFETs.
Patent CA-1098156-A (CA)
Inventor: WERNET WILLIAM F
IPC: H01H21/22
Filed: 1978-01-18
Granted: 1981-03-24
Abstract: TITLE              ACTUATOR FOR PUSHBUTTON SWITCH                 ABSTRACT OF THE INVENTION           An actuator for pushbotton type switches compris-ing a single molded plastic unitary structure.  The actuator provides for operation of both locking and nonlocking switches and for actuation of switches mounted both parallel to and perpendicular to the plane of operation of the actuator.
Patent CA-1092667-A (CA)
Inventor: HONGU MASAYUKI
IPC: H04N5/95
Filed: 1978-01-26
Granted: 1980-12-30
Abstract: ABSTRACT OF THE DISCLOSURE           A variable delay device for delaying an electric signal comprising a bar-shaped magnetostrictive member to be a transmitting path of a supersonic wave, an input transducer for converting an electric signal to a supersonic wave and an output transducer for converting a super sonic wave to an electric signal both provided at both end portions of the magnetostrictive member, respectively, and a magnetic field producing device provided between the input and output transducers for supplying to the magnetostrictive member with a magnetic field which varies in intension in a direction along which the magnetostrictive member elongates.          The magnetic field supplied to the magnetostrictive member is controlled by a control signal applied to the magnetic field producing device to vary Young's modulus of the magnetostrictive member and, as a result, to vary the velocity of the supersonic wave transmitting therein, thereby to control the delay time of a delayed electric signal.
Patent CA-1117056-A (CA)
Inventor: O'FFILL JOSEPH M
IPC: C10G1/02
Filed: 1978-02-27
Granted: 1982-01-26
Abstract: METHOD AND APPARATUS FOR PROCESSING OIL SHALE   ABSTRACT OF THE DISCLOSURE           A low cost, high efficiency process for treating oil shale is provided which allows essentially complete recovery of the valuable hydrocarbon fraction of the shale, including light ends, without direct firing of the shale or use of other expen-sive processing steps heretofore proposed.  In preferred forms, the oil shale is heated in a closed heating system using circu-lating, oxygen-free gases until the shale "break point", or temperature at which the hydrocarbons begin to vaporize from the shale, is reached; at this point the system is slowly depres-surized and hydrocarbons are simultaneously released to a con-densation stage for the recovery thereof ant control of circu-lating fan horsepower.  Steam may also be added to the circulat-ing system to further purge hydrocarbons from the shale and provide additional control of fan horsepower.  Heating is prefer ably continued during the recovery-depressurization stage until the shale is at a temperature level where all hydrocarbons have been liberated therefrom.  Processing in this fashion gives significant operational economies, and in production-scale runs the process generates excess energy in the form of steam and noncondensible hydrocarbon gas which can be used in the process or for other utility purposes.     (Docket No. F-15503-A)
Patent CA-1109804-A (CA)
Title: Apparatus for the removal of oil from an oil in water  emulsion
Inventor: CHAMBERS DAVID B
IPC: B01D17/04
Filed: 1978-03-14
Granted: 1981-09-29
Abstract: ABSTRACT OF THE DISCLOSURE          An apparatus is provided for the removal of oil from an effluent stream consisting of a dispersion of oil in water   The main feature of the apparatus is a plurality of socks through the walls of which the effluent stream passes;  the socks being of a fibrous material, preferably a melded epitropic fabric, which causes coalescence of the dispersed oil droplets   The coalesced oil floats to the surface and can be conveniently removed by, for example, a sludge gulper.
Patent CA-1079582-A (CA)
Inventor: BORGERSEN KJELL I
IPC: B63H1/20
Filed: 1978-06-08
Granted: 1980-06-17
Abstract: ABSTRACT OF THE DISCLOSURE     A boat propeller hub comprises an inner sleeve for rigid attachment  to a propeller shaft, an outer sleeve disposed concentrically with the inner sleeve and arranged to carry propeller blades, and a bushing of elastic material disposed between the inner and the outer sleeves, said bushing having a greater wall thickness at its end portion that at its middle portion.
Patent CA-1112036-A (CA)
Title: Soft surface magnetic clamping board for garment-type  patterns
Inventor: JOHNSON BETTY ANNIN STREET PHI
IPC: A41H3/00
Filed: 1978-08-11
Granted: 1981-11-10
Abstract: PATTERN CUTTING BOARD                            ABSTRACT      A pattern cutting board is provided which facilitates the cutting of textile material according to paper patterns for fabrication of garments.  The cutting board contains integrally attached magnetically attractable material, allowing the textile and the pattern piece to be held in place on the board by magnetic objects.  The cutting board is foldable for easy storage.  Also patterns and fabrics may be stored indefinitely on the cutting board in its open position.