baber/WOPTO huggingface dataset:
Patent CA-1065655-A (CA)
Title: Shaped body, such as a contact lens, of at least two polymerized materials and method of making same
Inventor: DEICHERT WILLIAM G
IPC: G02B1/04
Filed: 1976-04-20
Granted: 1979-11-06
Abstract: ABSTRACT OF THE DISCLOSURE A  shaped body, especially a contact lens, is manufactured from at least two polymerized materials with one polymerized material being swellable relative to the other polymerized material.  The shaped body is formed having polymerized sections of the first material, the second material and a substantially random copolymer of the first and second material.  A contact lens in accordance with the invention is provide with a center section of relatively hard transparent polymerized material and an edge section of a relatively soft hydrated transparent hydrophilic polymerized material circumscribing the center section.  A transition section of a substantially random copolymer provides the direct connection between the center and edge sections of the contact lens.  It has been found that this transition section provides a bond of suf-ficient strength to maintain the connection between the center and edge sections even when the hydrophilic material becomes stressed.
Patent CA-1073171-A (CA)
Inventor: UEMURA MASARU
IPC: B29C48/60
Filed: 1976-05-18
Granted: 1980-03-11
Abstract: ABSTRACT OF THE DISCLOSURE          An extruder for a thermoplastic resin composition the extruder comprises a cylindrical body, a screw and heating means, the cylindrical body having a large aperture portion, a tapered portion and a small aperture portion, the screw having a large diameter flight, a tapered flight and a small diameter flight, the screw being fitted in the cylindrical body, a plurality of free pass recesses being present on the tapered flight.
Patent CA-1054213-A (CA)
Inventor: STACHEL CHARLES P
IPC: H01J9/46
Filed: 1976-06-25
Granted: 1979-05-08
Abstract: METHOD OF ASSEMBLING A CATHODE RAY TUBE   Abstract A bulb assembly, including a faceplate panel portion and a mount assembly, comprising a stem and a multi-beam electron gun assembly, are positioned in axial align-ment on respective central longitudinal axes.  A reference plane which contains the central longitudinal axis of the bulb assembly and is parallel to a plurality of parallel phosphor lines disposed on one surface of the faceplate panel portion, is established.  An orientation plane is then defined with reference to the structure of the electron gun assembly.  The orientation plane contains the central longitudinal axis of the mount assembly and two reference points on the structure of the electron gun assembly and passes through the in-line electron beam apertures.  The mount assembly is then rotated with respect to the bulb assembly on the coincident longitudinal axes until the orientation plane is perpendicular to the reference plane as optically indicated by the alignment of the two reference points on an optical display which has superimposed the image of the phosphor lines.  Then, while maintaining this rotational orientation, the mount assembly is actually moved within the bulb assembly to a desired longitudinal location with respect to the faceplate panel portion.  The bulb assembly and mount assembly are then permanently assembled.
Patent CA-1079258-A (CA)
Inventor: CAMPBELL RAMSEY G
IPC: C07B61/00
Filed: 1976-06-30
Granted: 1980-06-10
Abstract: Abstract of the Disclosure Oxychlorination of ethylene is carried out using a three-reactor system containing beds of a catalyst comprising a spherical, high-surface area activated alumina impregnated with cupric chloride and potassium chloride.  In the first two reactors, the catalyst bed is divided into two sections, with a more active catalyst in the lower section than in the upper.  The catalyst is substantially undiluted with inert particles.
Patent CA-1110800-A (CA)
Inventor: YAMAMOTO KAZUHIDE
IPC: D06M101/02
Filed: 1976-09-29
Granted: 1981-10-13
Abstract: ABSTRACT OF THE DISCLOSURE A process for modifying a fibrous product containing cellulosic fibers which comprises treating said fibrous product with a solution or dispersion containing a particular acrylic copolymer having a glycidyl group and an alkylene oxide side-chain, drying the fibrous product; and heat-treating it in the presence of an acid catalyst at a temperature suf-ficient to cleave the oxirane linkage of the glycidyl group.  This process can impart superior dry and wet crease resistances, shrinkage resistance and wash and wear properties and also soil removing ability, resistance to redeposition, water absorption and water penetrability to fibrous products containing cellulosic fibers while retaining their mechanical strength characteristics.
Patent CA-1082269-A (CA)
Title: Disjoncteur electrique a extinction d'arc a soufflage  electromagnetique
Inventor: MIRCOVICH JEAN-LOUIS
IPC: H01H33/12
Filed: 1977-01-17
Granted: 1980-07-22
Abstract: L'invention est relative à un dispositif d'extinction d'arc.  Deux paires de contacts en forme de pistes annulaires sont connectées en série et une bobine de soufflage électromagnétique, branchée en parallèle d'une des paires de contacts, engendre un champ magnétique radial faisant tourner les arcs sur les pistes annulaires.
Patent CA-1047799-A (CA)
Inventor: KREITZBERG ERNEST A
IPC: F16D48/02
Filed: 1977-02-25
Granted: 1979-02-06
Abstract: ABSTRACT OF THE DISCLOSURE A hydraulic control system including a plurality of individual clutch valves for selective operation for control-ling clutches in a power shift transmission.  A modulating valve and a clutch valve release mechanism are included for modulating the clutch engaging pressure and the clutch disengaging pressure automatically.  A single source of pressurized fluid provides pressurized fluid for operating the hydraulic actuators through the clutch valves and pres-surized fluid to lubricate the power shift transmission having wet clutches which operate in hydraulic fluid.
Patent CA-1059561-A (CA)
Title: Step member for tractors
Inventor: URBAITIS VINCAS
IPC: B60R3/00
Filed: 1977-03-10
Granted: 1979-07-31
Abstract: STEP MEMBER FOR TRACTORS            Abstract of the Disclosure:         A step member for attachment to a frame of a tractor that includes a single flexible cable having the opposite ends thereof provided with bracket members which serve to attach the cable to the tractor frame so as to form the cable into a generally U-shaped configuration and provide a pair of verti-cally oriented arcuate legs and a substantially horizontal base the latter of which has a foot supporting plate secured thereto of a length substantially less than the distance between the coupling members.
Patent CA-1120053-A (CA)
Inventor: WEISS ULRICH
IPC: C07C69/757
Filed: 1977-04-04
Granted: 1982-03-16
Abstract: ABSTRACT      Tricyclic aromatic compounds of the formula   including those wherein:         (a)  R1 is H, R2 is carbomethoxy, and R3 is methyl;         (b)  R1 is acetyl, R2 is carbomethoxy, and R3 is methyl;         (c)  R1 and R3 are methyl and R2 is carbomethoxy;         (d)  R1, R2, and R3 are hydrogen; and (e)  R1 and R3 are methyl and R2 is hydrogen are intermediates for the total synthesis of steroids.
Patent CA-1061812-A (CA)
Inventor: KOGLER PETER
IPC: E21D9/10
Filed: 1977-05-13
Granted: 1979-09-04
Abstract: ABSTRACT OF THE DISCLOSURE            The invention provides a cutting machine comprising: a cutting arm which can be swivelled in all directions; a cutting head which is hinged about an axis located vertically to the longitudinal position of the arm and which is mounted on each side of the end of said arm, the cutting head being adapted to make a forward movement in the direction of its axis, while the cutting heads are driven, via a reduction gear, by a driving means located in the cutting arm, at least the last phase of the reduction gear being disposed within the hollow cutting heads; at least one oil supply line or oil discharge line connected to the housing of the reduction gear in the vicinity of the cutting heads; and at least one oil discharge line or oil supply line connected to the housing at a distance from the cutting heads; lines or pipes opening out into an oil tank disposed in or adjacent the cutting arm at a point between the cutting motor and the cutting machine; and a pump connected to the oil supply pipe and/or oil discharge pipe.
Patent CA-1045945-A (CA)
Inventor: BRIDWELL JOHN W
IPC: B60T13/18
Filed: 1977-06-16
Granted: 1979-01-09
Abstract: HYDRAULIC SYSTEM FOR EXTREMELY COLD ENVIRONMENTS     A B S T R A C T     A hydraulic system for use in extremely cold environments has a pump for passing hydraulic fluid from a reservoir to a hydraulic cylinder of a work element via a control valve that is positioned a relatively great. distance from the hydraulic cylinder.  Fluid pathways are provided for substantially continuously moving hydraulic fluid between the control valve and hydraulic cylinder during operation of the pump.
Patent CA-1081214-A (CA)
Inventor: BRUDERLEIN FRANCOIS T
IPC: C07D221/18
Filed: 1977-07-19
Granted: 1980-07-08
Abstract: PROCESS FOR PREPARING AN INTERMEDIATE FOR         CNS DEPRESSANTS         Abstract of the Disclosure Disclosed is a process for preparing (4a,13b-trans)-1,2,4,4a,8,9,13b,14-octahydro-3H-benzo[6,7]cyclohepta[1,2,3-de]-pyrido[2,1-a]isoquinolin-3-one involving a 1,3-cycloaddition of a 4-halo-1-butene to 1,7,8,12b-tetrahydrobenzo[1,2]cyclohepta-[3,4,5-de]isoquinoline N-oxide.
Patent CA-1089401-A (CA)
Inventor: ALEXION DENNIS G
IPC: C10G7/00
Filed: 1977-08-08
Granted: 1980-11-11
Abstract: ABSTRACT OF THE DISCLOSURE           The temperature of the reflux fed to a fractionating tower is increased after the reflux enters the tower and before it passes onto the reflux return tray by passing the reflux through an atomizer in the fractionating tower above the reflux return tray to produce a downfalling spray of liquid droplets; collecting the droplets on a chimney tray located between the atomizer and the reflux return tray, the chimney tray containing chimneys that convey hot vapors rising from the reflux return tray upward through the chimney tray; and passing the collected liquid from the chimney tray onto the reflux return tray.          The distance between the chimney tray and the atomizer is such as to allow the downfalling droplets to absorb sufficient heat from the hot rising vapors so that the temperature of the reflux liquid collected on the chimney tray is increased to a desired value.  The distance between the atomizing device and the chimney tray necessary to raise the temperature of the reflux to the desired value may be minimized by using a two-condenser, two-drum fractionator overhead system to increase the temperature of the reflux before it is fed to the fractionator.
Patent CA-1073129-A (CA)
Inventor: MARLOWE FRANK J
IPC: H04N5/68
Filed: 1977-11-10
Granted: 1980-03-04
Abstract: Abstract The brightness signal for an image display device is digitally processed using an analog to digital converter to translate the signal into digital words. A primary shift register is connected to the output of the analog to digital converter.  The primary shift register has a stage capable of containing a digital brightness word for each element in the display line of the device.  The primary shift register has a plurality of parallel outputs being spaced X number of stages from each other.  Each output is connected to a separate secondary shift register which has X stages.
Patent CA-1115130-A (CA)
Title: Door arrangement, especially for a residential  structure
Inventor: COLOMBO VIRGINIO
IPC: E05C9/02
Filed: 1977-12-16
Granted: 1981-12-29
Abstract: ABSTRACT       A burglary proof door, especially for a residence, com-prising a frame formed of metal hollow sections or profiles and a door faced with coverings and assembled together from metal hollow sections or profiles.  In its closed position the door is guided both at its hinge side and lock side throughout its entire height in substantially U-shaped grooves provided at the frame.  The door part guided at the lock side in the frame comprises two rails movable transversely with respect to the direction of opening of the door and extending over the entire door height.  The hinge side outer edge of the door is bevelled or tapered throughout its entire height and the sub-stantially U-shaped groove provided at the hinge side-frame part is accommodated to such shape.  The edge of the door opening located in the wall of the structure projects into the frame which is U-shaped in cross-section.  The vertical edges of the door opening are constructed in a stepwise manner such that the inner horizontal width is greater than the outer horizontal width.
Patent CA-1098229-A (CA)
Inventor: LASKIN CHARLES L
IPC: C09D5/02
Filed: 1978-03-29
Granted: 1981-03-24
Abstract: ABSTRACT OF THE DISCLOSURE                A heat-curable aqueous coil coating primer for priming metal coil comprises a film-forming binder phase comprising a heat-curable, water-dispersible polyurethane polymer, and a thermosetting or thermoplastic resinous latex in synergistic combination; and a pigment phase which includes corrosion-inhibiting pigment and, optionally, opacifying pigment.
Patent CA-1107871-A (CA)
Inventor: CHESAREK DONALD J
IPC: G09G5/00
Filed: 1978-03-31
Granted: 1981-08-25
Abstract: DISPLAY COMPRESSED IMAGE REFRESH SYSTEM          ABSTRACT OF THE DISCLOSURE    Scanned image data is compressed and stored in a central processing unit.  An image for display is recalled, decompressed, and then recompressed for refresh storage for a CRT display device.  The refresh compressed image is recalled when necessary for display and refresh, and directed through a plurality of parallel operated decom-pressors and refresh buffers to drive the display unit.  An unfilled compressed refresh image store is filled with zeros to complete the display with an all white scan.  In an overflow situation, a partition boundary is generated to identify that more data follows.  To display the subsequent image, upon request, the overflow increment value which repeats a few scan lines is transmitted and a visual overlap image with subsequent data is compressed for refresh store and display and refreshed as required.
Patent CA-1072399-A (CA)
Inventor: GREEN DANIEL R
IPC: B61D37/00
Filed: 1978-04-10
Granted: 1980-02-26
Abstract: Abstract of the Disclosure A railway passenger vehicle having a side wall mounted, modular shelving unit providing a convenience center for use in carrying or storing glasses, beverages and the like.  The convenience center is a modular unit that may be assembled away from the vehicle and easily attached to a wall mounted seat rail during final assembly stages. The unit includes a mounting shell providing a trough that is attached to the seat rail and shaped to conform with the vehicle structure and also shaped to receive a number of storage or table top members that are suitable to receive various items frequently used by passengers.          The trough portion of the convenience center includes a light which is powered by a cable that is carried in a hollow section and extends along the length of the convenient center.  The light requires no external wiring to be connected through the walls and thus may be easily wired into the vehicle electrical system at the car ends as the convenience centers are installed.
Patent CA-1083540-A (CA)
Inventor: PITCHON ESRA
IPC: B05B7/00
Filed: 1978-05-01
Granted: 1980-08-12
Abstract: ABSTRACT Methods and apparatus for the topical treatment of vegetation or terrain therefor, comprising expressing a multi-plicity of discrete foam structures with the plant agent composition as a spray to provide a treated surface with controlled application of plant agents e.g. using the foam structures as markers.
Patent CA-1098161-A (CA)
Inventor: GIORDANO FRANCIS P
IPC: B41J2/025
Filed: 1978-06-12
Granted: 1981-03-24
Abstract: INK JET PRINTING HEAD          Abstract of the Disclosure An ink jet printing head comprising a head body made from a material having high specific stiffness and the head body includes an ink passage which is kept small to retain the high body stiffness.  The ink passage comprises a narrow slot connected with internal holes in the body which lead to ink inlet and exit ports.  A nozzle plate having a plurality of orifices is fixed to the front of the head body and a piezoelectric crystal is fixed to the back of the head body.  The piezoelectric crystal is kept thin compared to the head thickness, typically on the order of 1/20 to 1/30 of the body thickness, so that the effect of the crystal on the resonant characteristics of the assembly is kept small.  The ink jet head provides a plurality of columns or jets of ink which are excited in such a way as to break up into uniformly and equally spaced drops at a fixed distance from the nozzle plate containing the orifices which produce the jets.
Patent CA-1112881-A (CA)
Title: Method and extraction reagent for extraction of  metal ions from an agueous solution
Inventor: KARLSSON BENGT G
IPC: C22B3/28
Filed: 1978-07-07
Granted: 1981-11-24
Abstract: ABSTRACT OF THE DISCLOSURE           The specification describes a method for selectively removing metal ions from an aqueous solution by means of liquid extraction.  In the method an extraction agent of a certain class of phenol compounds is used, which class shows selectivity to a number of metal ions such as lead, cadmium and zinc due to the detail structure of the phenol compound.
Patent CA-1113199-A (CA)
Inventor: KIEFT ALVIN J
IPC: C09J175/00
Filed: 1978-07-14
Granted: 1981-11-24
Abstract: ABSTRACT OF THE DISCLOSURE      A polyurethane adhesive that is sandable when cured, the adhesive being the reaction product of a mix-ture of about one mol of a polyester polyol or polyether polyol of 2-4 hydroxyls having a molecular weight of 500 to about 3000 and 2.5 to 7 mols isocyanate composition of a mixture of toluene diisocyanate and methane di(phenyl isocyanate) containing a filler composed of silica plate-lete and glass spherical platelets, a plasticizer amount of polyvinyl chloride plasticizer and a curative amount of monomeric nitrogen containing tetraol of 200 to 1000 molecular weight.
Patent CA-1090697-A (CA)
Inventor: DAVIS JAMES S
IPC: C07C7/00
Filed: 1978-08-03
Granted: 1980-12-02
Abstract: ETHYLENE SEPARATION PROCESS                 Abstract of the Disclosure A process for separating a hydrocarbon feed gas mixture comprising at least C1 - C2 constituents including ethylene to produce a separated ethylene product.  The dis-closed process employs a recovery section in which demethan-ization is carried out at moderate pressure, thereby per-mitting efficient and economical use of propylene-ethylene refrigeration in the process.     S P E C I F I C A T I O N
Patent CA-1082660-A (CA)
Inventor: DEMPSTER THOMAS B
IPC: B65D5/02
Filed: 1978-08-31
Granted: 1980-07-29
Abstract: OCTAGONAL-SHAPED PAPERBOARD BULK BIN                  Abstract of the Disclosure An octagonal-shaped paperboard bulk bin particularly suited for use with heavy, palletized loads of meat products and the like is formed of alternating, upstanding side panels and corner panels, with each panel including a foldably connected bottom flap and with the bottom flaps being in overlapped and interengaged relationship to form the bottom wall of the bulk bin.  More particularly,  each corner panel includes a foldably connected, horizontally disposed rectangular flap which is initially folded inwardly such that each flap is in overlapping relationship.  Each flap of one pair of flaps extending from opposed side panels is slotted to include two parallel slots disposed perpendicular to the fold line thereof, and extending for a distance corresponding to one-half of the width of the flap extending from the adjacent side panel.  By this construction, the flaps extending from the side panels may be interengaged for forming a rigid bottom wall for the bulk bin.
Patent CA-1097348-A (CA)
Inventor: BULIDON JACQUES
IPC: C07D215/18
Filed: 1978-10-06
Granted: 1981-03-10
Abstract: L'invention a pour objet un procédé de préparation de 4-chloroquinoléines qui consiste à cycliser un acide anilinopropanoïqie par action d'un agent de chloruration en présence d'un oxydant.
Patent CA-1120012-A (CA)
Inventor: HARRIGAN RICHARD V
IPC: B65D27/20
Filed: 1978-10-24
Granted: 1982-03-16
Abstract: LOCKING ENVELOPE               Abstract Of The Disclosure An envelope which is closed and secured without adhesive for repeated use.  A tuck, flap extension of the closure flap is infolded and tucked back in between the back panel and a lock flap partially overlying the back panel.  The back panel and the lock flap, folded back upon it, are secured to the front panel by overlying end tabs.
Patent CA-1116865-A (CA)
Inventor: MOHLA PREM P
IPC: C21C1/02
Filed: 1978-10-25
Granted: 1982-01-26
Abstract: IN SITU FURNACE METAL DESULFURIZATION/ NODULARIZATION BY HIGH PURITY MAGNESIUM                  ABSTRACT OF THE DISCLOSURE                    A method of desulfurizing iron in an induction furnace is disclosed.  High purity magnesium, carried in a lance controlled cartridge, is plunged into the lower zone of a molten metal pool of an induction furnace; the cartridge is held submerged for a period of 30-200 seconds.  The molten metal column above the submerged cartridge must be at least 2.5 feet, preferably 6-7 feet.  The molten metal temperature at the time of cartridge plunging is limited to 2400°F or less. Magnesium recovery will be at least 70%, which is better than other prior art methods by a factor of 1.4.
Patent CA-1103212-A (CA)
Inventor: KITZEROW RUEDIGER
IPC: B43K7/00
Filed: 1978-10-26
Granted: 1981-06-16
Abstract: ABSTRACT A retractable ballpoint pen has a body and a point secured to a flexible tubular ink reservoir.  The ink reservoir is secured to a rotatable element witin the body, movement of which element causes the pen to be retracted and projected and during that movement the reservoir follows a generally circular path.
Patent CA-1116031-A (CA)
Inventor: ALLAN FREDERIC J
IPC: F24H9/00
Filed: 1978-10-31
Granted: 1982-01-12
Abstract: ABSTRACT OF THE DISCLOSURE     A heat transfer device particularly adapted for use in a flue of a natural draft storage type water heater is disclosed.  The heat transfer device is comprised of a cylindrical baffle adapted to be discposed in the flue, which baffle includes a spiral external vane.  The heat transfer device is particularly effective in conjunction with a reducing throat at the exit end of the flue, which throat serves to maintain the flue gas velocity of the gases leaving the flue.  The throat will also ensure longevity of the bulkhead weld normally subjected to thermal and corrosive deterioration.  The device is particularly useful in water heater flues with internal diameters greater than 4 inches.
Patent CA-1112710-A (CA)
Inventor: UMANS FRANS M
IPC: G03G15/20
Filed: 1978-11-16
Granted: 1981-11-17
Abstract: Abstract of the disclosure.    Contact heat fusing apparatus.        A unit for heat fixing xerographic images makes use of a fuser roller and a self adjusting pressure roller. the fuser roller is internally heated and it may be asso-ciated with a self adjusting cleaning roller.  The pre-ceeding elements may form a unit which can be provided moreover with scraper elements and supplementary feeding rollers located downstream of the fuser and fusing rollers and which rotate at a peripheral speed exceeding that of the latters.     GV.901