baber/WOPTO huggingface dataset:
Patent CA-1067124-A (CA)
Inventor: JAROSZ JOHN M
IPC: H01H31/00
Filed: 1976-12-21
Granted: 1979-11-27
Abstract: ROTATING MECHANISM FOR RAPIDLY, LINEARLY OPERATING CIRCUIT INTERRUPTING DEVICES     ABSTRACT:  Disclosed is an auxiliary mechanism for rapidly imparting rotational energy to electrical switch components.  An insulator connects an electrical switch component to an output shaft mounted for rotation in the mechanism housing.  A lever arm assembly is mounted on the shaft and a link member is pivotably connected between the lever arm assembly and a first arm extending from a bell-crank member.  The bellcrank member is mounted for rotation in the housing and has a second arm that is operably connected to one or more solenoids.  Initially the link member and first arm are in an overcenter toggle position so that the insulator cannot be accidentally rotated.  Energization of the solenoid causes rapid rotation of the insulator because the mechanical advantage of the system is such that maximum force is applied initially.  Once the solenoid is de-energized, a spring connected between an extended end of the lever arm assembly and the end of the first arm returns the mechanism to its initial position with the first arm and link member in the overcenter toggle position thereby locking the output shaft and the insulator in the initial unoperated position.
Patent CA-1062634-A (CA)
Inventor: BENNETT ROBERT B
IPC: F16L55/165
Filed: 1977-01-28
Granted: 1979-09-18
Abstract: METHOD FOR REPAIRING SEWER PIPES             ABSTRACT             A sewer pipe is repaired by inserting a thin, flexible liner within the sewer pipe.  The liner has an outer diameter less than the inner diameter of the sewer pipe, whereby an annu-lar space is presented between the liner and the sewer pipe.          This annular space is filled with a low viscosity magnesium based cement, such as magnesium oxychloride cement or mag-nesium oxysulfate cement, which has a maximum Marsh funnel viscosity of 40 seconds per quart.
Patent CA-1081344-A (CA)
Inventor: MINORIKAWA HITOSHI
IPC: G01F23/24
Filed: 1977-02-23
Granted: 1980-07-08
Abstract: LIQUID LEVEL DETECTING APPARATUS     ABSTRACT OF THE DISCLOSURE         A liquid level detecting apparatus comprises a thermistor adapted to generate heat by current flowing therethrough, wherein the liquid level is sensed by detecting a current value at the thermistor which varies in dependence on a variation in temperature of the thermistor, which temperature in turn varies in dependence on whether the thermistor is immersed in the liquid or exposed to air.  A relay coil is provided in series to the thermistor and disposed within a casing together with the latter so that the variation in temperature of the liquid may be transmitted to the relay coil, wherein the variation in the current value at the thermistor caused by the temperature variation of liquid is corrected by the variation of the resistance of the relay coil.
Patent CA-1061727-A (CA)
Inventor: RAY RICHARD J JR
IPC: F16L59/02
Filed: 1977-03-10
Granted: 1979-09-04
Abstract: THERMALLY INSULATING DUCT LINER            ABSTRACT Disclosed herein is a flexible thermally insulating duct liner comprising a fibrous thermal insulation layer having an organic fibrous layer having an open structure bonded to its working face, the working face being thereafter coated with a flame retardant vinyl polymer containing coating.  The duct liner of the present invention has an extremely smooth surface which reduces air friction to a minimum.  Still the product is very flexible, easy to work with, and resistant to delamination or working surface failure.
Patent CA-1084904-A (CA)
Title: PROCESS FOR THE MANUFACTURE OF 6.beta.,7-METHYLENE-3-OXO- 4-ENE STEROIDS
Inventor: WIELAND PETER
IPC: C07C67/00
Filed: 1977-04-04
Granted: 1980-09-02
Abstract: Abstract of the Disclosure The invention provides a novel general process for the manufacture of 6.beta.,7-methylene-3-oxo-4-ene-steroids by successlvely a)reacting a 3?,5.beta.-dihydroxy-6-ene-steroid which is optionally etherified or esterified in the 3-position with a zinc/copper-methylene iodide reagent to introduce the 6.beta.,7-methylene bridge, b) liberating sn etherified or esterified 3-hydroxyl group if such a group is present, c) tresting the resultant 6.beta.,7-methylene-3?,5.beta.-dihydroxy-steroid with an oxidising agent to dehydrogenate the 3-hydroxyl group to the oxo group, and d) dehydrating the 6.beta.,7-methylene-5.beta.-hydroxy-3-oxo-steroid to form the 4,5-double bond. The starting materials, which form a novel class of compounds, can be obtained by a novel process by converting a 5.beta.,6-oxido-3?-hydrox -steroid with a selenol, for example phenyl-selenol, to a 6.alpha.-alkyl- or arylseleno-3?,5.beta.-dihydroxy-steroid, oxidising this compound with a peroxidic reagent, for example hydrogen peroxide, in a weakly acid medium to give the corresponding 6-selenonyl compound, and converting this compound, preferably by treatment with a base, preferably with 1,5-diazabicyclo[4,3,0]non-5-ene, to give the 3?,5.beta.-dihytroxy-6-ene-steroid. During the course of these reactions, the 3-hydroxyl group is preferably temporarily protected by esterification or etherification.     - la -
Patent CA-1071251-A (CA)
Inventor: YOUNG WILLIAM O JR
IPC: B65H23/34
Filed: 1977-04-07
Granted: 1980-02-05
Abstract: WEB EDGE DECURLING DEVICE AND METHOD FOR USING SAME               ABSTRACT OF THE DISCLOSURE          A device is disclosed and claimed herein for engagement with a moving web to remove curl, fold or crease from an edge thereof.  Opposite banks of elongated stationary fins are angularly disposed with respect to the direction of movement of the web and are spaced apart to define a predetermined web passageway there-through,  The edge of the traveling web passes between the banks of fins and cooperative forces produced by the opposing banks of the elongated angularly disposed fins remove curl from the edge of the web as well as removing folds and creases.  In a preferred embodi-ment, the elongated fins have opposite taper at leading and trailing ends to permit proper feeding of a web therebetween and to permit location of the device in close proximity to adjacent web handling equipment. In another preferred embodiment, the two banks of elongated fins are operatively associated under spring tension, whereby adjustment may be made between banks of fins while damage to a web passing therethrough or to the device is sub-stantially alleviated,
Patent CA-1074104-A (CA)
Inventor: NICHOLS JOHN A
IPC: F26B13/10
Filed: 1977-05-02
Granted: 1980-03-25
Abstract: TITLE          WASTE HEAT RECYCLING SYSTEM            ABSTRACT OF THE DISCLOSURE           A heat exchanger heats fresh air moving to a product dryer by running the fresh air around hot exhaust tubes which are discharging from the dryer.  Detergent sprays may be positioned to direct cleaning fluid into the tubes.          The fresh air is introduced into a pre-dryer through pipes having nozzles which are at 30° angles to the product path.
Patent CA-1066327-A (CA)
Inventor: SJOGREN FRANZ B
IPC: B60T15/38
Filed: 1977-05-16
Granted: 1979-11-13
Abstract: ABSTRACT OF THE DISCLOSURE Means for actuating the compressed air brake system of a vehicle on the detection by a sensor of an obstacle, the brake system having a service brake circuit and a parking brake cir-cuit.  A valve assembly will, at a signal from the sensor, open for supplying compressed air from the parking brake circuit di-rect to the service brake cylinders.  As an alternative, the parking spring brake cylinders may be voided for application of the parking brakes.
Patent CA-1053433-A (CA)
Inventor: THOREN TORGNY A
IPC: E04C2/30
Filed: 1977-06-16
Granted: 1979-05-01
Abstract: ABSTRACT OF THE DISCLOSURE     A panel building component for use in conjunction with a heat-insulating wall of the type having a porous layer through which a transverse air flow is maintained in a di-rection opposite to the direction of the temperature gradient.         The panel building component comprises a frame and two spaced layers secured to the frame and defining an air space between them.  One layer is rigid and impermeable to air whereas the other layer has a limited permeability to air.  The panel building component is mounted as a lining or cladding on the wall with the air-permeable layer in face-to-face engagement with the porous layer of the wall.  The air space is connected to a fan which maintains a reduced pressure in the air space to cause external air to flow through the porous layer into the air space.
Patent CA-1078563-A (CA)
Inventor: ARENT ULRICH
IPC: A22C25/17
Filed: 1977-08-30
Granted: 1980-06-03
Abstract: ABSTRACT OF THE DISCLOSURE           A device for creating an oscillating movement of a knife-bearing element in a machine for skinning fish fillets, wherein the device comprises a crank drive an eccentric crankpin of which carrying an idler ring, the knife bearing element is arranged essentially perpendicular to the axis of the crank drive, and one of the ends of the knife-bearing element is equipped with a sliding surface, an  end face of which bears against the surface of the idler ring by the action of a return spring acting on the knife bearing element.
Patent CA-1084761-A (CA)
Inventor: HUERTH ARTHUR W
IPC: E01H5/02
Filed: 1977-09-09
Granted: 1980-09-02
Abstract: S P E C I F I C A T I O N     SNOW REMOVAL DEVICE                 Abstract of the Disclosure A device for the removal of snow without stooping, bending, or lifting.  The device is constructed as a substantially flat panel arching upwardly at one end. A blade is fixedly attached to the leading edge of this flat panel.  Raised side walls provide structural support and increase the volume of snow held.  Likewise, a handle is attached for propulsion of the apparatus by a user. A sliding surface on the exterior of the flat panel enables propulsion of the device horizontally across pavement, thus removing the snow without lifting.  A smooth surface on the interior of the device enables disposal of accumu-lated snow by rapidly pushing or "slinging" the device, thereby propelling the snow forward and out of the device.
Patent CA-1050429-A (CA)
Inventor: GORDON PAUL
IPC: A61K31/70
Filed: 1977-09-19
Granted: 1979-03-13
Abstract: THERAPEUTIC COMPOSITION, NOVEL COMPOUNDS USEFUL     THEREIN AND METHOD OF USING THE SAME                     ABSTRACT OF THE DISCLOSURE     The invention provides a novel therapeutic composition comprising a pharmaceutically acceptable carrier containing a therapeutically effective amount of an ethereal monosubstitution of a monosaccharide derivative having the general formula S-O-Y, wherein S is the residue of the monosaccharide derivative se-lected from the group consisting of pentoses, hexoses and heptoses as single or polysubstituted acetals or esters and Y is selected from the group consisting of cyclic monovalent nitrogen-containing organic radicals and residua and monovalent organic radicals and residua having the general formula  , wherein Rl is a divalent organic radical having a linear carbon chain length of about 1-7 carbon atoms and R2 and R3 are selected from the group consisting of -H, -OH, -SH, halogen and monovalent organic radicals and residua having a linear carbon chain length of about 1-7 carbon atoms.  The invention also provides certain novel ethereal monosubstitutions of monosaccharide derivatives, of which 3-O-3'-(N',N'-dimethyl-amino-n-propyl)-1,2-O-isopropylidene-D-glucofuranose is an example.  The novel compositions show striking antiviral activity or other therapeutically valuable properties.
Patent CA-1104864-A (CA)
Inventor: LAROSSA ROBERT A
IPC: G03C1/498
Filed: 1977-10-11
Granted: 1981-07-14
Abstract: Abstract of the Disclosure A heat developable photographic material comprising, in reactive association, (a) photosensitive silver halide, with (b) an image-forming combination comprising (1) a silver imidazoline-2-thione wherein the imidazoline-2-thione portion is a 1-methyl, 1-ethyl or 1-phenyl-4-imidazoline-2-thione, with (ii) an organic, silver halide developing agent and (c) a binder, can provide developed and stabilized images without the need for processing solutions or baths.  An image can be developed and stabilized in this material by merely heating the material to moderately elevated temperatures after imagewise exposure.  Other addenda employed in heat developable photographic silver halide materials can be employed with the heat developable photographic materials described.
Patent CA-1093114-A (CA)
Inventor: PERSYN ROLAND
IPC: B60D1/34
Filed: 1977-10-12
Granted: 1981-01-06
Abstract: ABSTRACT OF THE DISCLOSURE         A tow stabilizer device intended to distribute part of the load at the end of a tow frame on a level with the swivel joint of the coupling to the front and rear wheels of the towing vehicle and to the wheels of the tow frame while eliminating the swaying and rolling effects and also improving braking.  The stabilizer includes a leaf spring or spring leaf at one end thereof articulated on a Jaw and kept articulated in a vertical line with the support axis of the coupling's swivel joint.  The jaw is braked in its lateral displacements by means of friction disks.  The other end of the spring is connected by a screw jack to a crosspiece which is attached to the arms of the tow frame by flexible connections.  Each of the flexible connections rest on a hinged bracket which is positioned on arms permitting the swerving of the assembly of the crosspiece and the spring leaf.
Patent CA-1105943-A (CA)
Inventor: HANOTIER JACQUES D V
IPC: C07C51/265
Filed: 1977-10-20
Granted: 1981-07-28
Abstract: ABSTRACT OF THE DISCLOSURE     There is disclosed a process for preparing terephthalic acid by oxidizing p-xylene which comprises contacting a substantially liquid mixture of p-xylene with p-toluic acid and water wherein the molar ratio of p-toluic acid to p-xylene is between about 0.01 and about 100 and the molar ratio of water to p-toluic acid is between about 0.4 and about 60, with a molecular oxygen-containing gas in the presence of an oxidation catalyst.
Patent CA-1038874-A (CA)
Inventor: KYBURZ EMILIO
IPC: C07D313/14
Filed: 1977-11-24
Granted: 1978-09-19
Abstract: ABSTRACT OF THE DISCLOSURE This invention relates to a process for the manufacture of compounds of the formula                      I   wherein X represents an oxygen or sulphur atom, R1 represents a hydrogen atom or lower alkyl group, R6' represents a halogen atom or a lower alkyl, lower alkoxy , lower alkylthio, lower alkylsulphonyl, di(lower alkyl) sulphamoyl, hydroxy, benzyloxy, trimethylsilyloxy, trifluoromethyl, nitro, amino or di (lower alkyl) amino group and R7' and R8' each individually represents a hydrogen atom or a substituent denoted by R6', which comprises reacting a compound of the formula            II   wherein X, R1, R6', R7' and R8' have the above meanings and R3 is hydrogen or trimethylsilyl, with a dehydration agent and cleaving off a trimethylsilyl group R3 present by treatment with a hydrolysing agent in the presence of metal ions. The dibenzo [b,f] thiepin and dibenz [b,f] oxepin derivatives of formula I are useful as starting materials for the manufacture of dibenzo [b,f] thiepin and dibenz [b,f] oxepin derivatives which form the subject matter of our copending Canadian Application for Letters Patent No. 201,871.
Patent CA-1099078-A (CA)
Title: Electroplating chromium and its alloys using chromium  thiocyanate complex
Inventor: BARCLAY DONALD J
IPC: C25D3/06
Filed: 1977-12-01
Granted: 1981-04-14
Abstract: ABSTRACT            Chromium or chromium alloys can be plated from an aqueous solution of a chromium (III) thiocyanate complex having at least one ligand other than thiocyanate or water in the inner co-ordination sphere.   One complex is a chromium (III) chloro-thiocyanate complex which can be prepared by equilibrating chromium chloride with sodium thiocyanate.
Patent CA-1106442-A (CA)
Inventor: LENART TIBOR
IPC: H02J7/00
Filed: 1978-01-18
Granted: 1981-08-04
Abstract: ABSTRACT OF THE DISCLOSURE     The voltage of a unit for recharging an accumulator battery is reduced to a low level when the battery is in a charged state as determined by a predetermined fall in the trickle charging current.  When the charged state of the battery is no longer maintained as determined by a fall in battery voltage below the low voltage level and a predetermined increase in trickle charging current, the voltage of the unit changes to a high level.
Patent CA-1106251-A (CA)
Title: Structure de toiture solaire et ses applications
Inventor: RONC MICHEL
IPC: E04D13/18
Filed: 1978-03-17
Granted: 1981-08-04
Abstract: Structure de toiture solaire alliant les fonctions de revêtement et d'étanchéité d'une toiture classique aux fonctions de capteur solaire caractérisée en ce qu'elle comporte : - un support en bois, métal ou béton - une épaisseur d'isolant - un revêtement d'étanchéité présentant une surface extérieure recouverte de granulés minéraux - des canaux de circulation de liquide en contact intime avec la couche d'étanchéité et situés entre cette couche et l'isolant. Réalisation particulière dans laquelle les canalisations d'eau sont des circuits tubulaires intégrés dans une tôle d'aluminium laminée en contact intime avec la couche d'étanchéité.  Applications au chauffage ou à la climatisation des locaux et à la production d'eau sanitaire chaude.
Patent CA-1092521-A (CA)
Inventor: ARAKI TADASHI
IPC: B01D53/60
Filed: 1978-03-22
Granted: 1980-12-30
Abstract: PROCESS FOR TREATMENT OF EXHAUST GAS          Abstract of the Disclosure Disclosed is a process for the treatment of an exhaust gas containing sulfur oxides and oxygen by the use of the aqueous solution of an alkali metal or alkaline earth metal salt.  This process includes bringing the exhaust gas, within a specified spray column, into contact with finely divided droplets of the aqueous solution of the salt prepared to a specific pH value and subsequently introducing the exhaust gas which has undergone the contact into an electric dust collector.  In this way, the disadvantageous formation of dithionic acid, which reduces the effectiveness of the process and can itself result in pollution, can be substantially avoided.
Patent CA-1102697-A (CA)
Inventor: CHEN JAMES L
IPC: C08L5/14
Filed: 1978-05-03
Granted: 1981-06-09
Abstract: ABSTRACT         A composition adapted for use around the stoma con-sisting of a homogeneous mixture of a pressure sensitive adhesive component, mineral oil, and hydrocolloid gums or cohesive strengthening agents or a mixture of hydrocolloid gums and cohesive strengthening agents.  By controlling the amount of mineral oil the resulting composition can be easily shaped according to the particular need.
Patent CA-1067716-A (CA)
Inventor: WEST GENE A
IPC: F02P5/152
Filed: 1978-06-26
Granted: 1979-12-11
Abstract: ENGINE KNOCK SIGNAL GENERATING APPARATUS  WITH NOISE CHANNEL INHIBITING FEEDBACK     Abstract of the Disclosure A vibration sensor mounted on an internal combustion engine characterized by knock-induced vibrations at a charac-teristic frequency and by other vibrations is tuned to resonate at substantially the characteristic frequency.  A bandpass filter tuned to the characteristic frequency is connected to the vibration sensor output; and the output of the filter is pro-vided to one input of a comparator and to average detector circuitry for generating a unidirectional noise reference signal representing noise at the characteristic frequency, which signal is provided to the other input of the comparator.  The knock signal, obtained from the output of the comparator and compris-inq pulses corresponding to knock-induced peaks of amplitude greater than the unidirectional noise reference signal, is fed back through a low-pass filter to the average detector circuitry in sense to oppose increases in the unidirectional noise refer-ence signal during said knock-induced peaks.  The connection of the average detector circuitry to the output of the bandpass filter provides adaptability for mistuned sensors; and the nega-tive feedback to the average detector circuitry reduces the distorting effect, amplified by the bandpass filter, of said knock-induced peaks on the unidirectional noise reference signal, which might otherwise distort the output knock signal.
Patent CA-1118077-A (CA)
Inventor: TAPLIN LAEL B
IPC: F02D21/08
Filed: 1978-08-01
Granted: 1982-02-09
Abstract: ABSTRACT      Means for controlling the quantities of the constitu-ents of the combustion charge for an internal combustion engine wherein the controlled quantity is varied at a com-paratively high frequency by a relatively small percentage of the presumedly correct quantity.  Such variation causes an oscillation of the same relatively high frequency to appear in the output of an oxygen sensor exposed to the engine exhaust.  Such sensor oscillations are detected and compared as to proportion with the percentage variation in the controlled quantity.  The difference in proportion serves as an error signal to adjust the controlled quantity.
Patent CA-1110888-A (CA)
Inventor: KOJIMA MASAHARU
IPC: F16B37/04
Filed: 1978-09-27
Granted: 1981-10-20
Abstract: PLASTIC SCREW SOCKET            Abstract of the Disclosure:    Disclosed is the improvement in a plastic screw socket which comprises a flange designed to be brought into contact with one surface of a given panel and a leg extending perpendicularly from the lower surface of the flange and adapted to be inserted through a matched perforation bored in advance in the panel, the flange and the leg being jointly provided therein with a through hole pierced vertically therethrough from the upper surface of the flange to the lower end of the leg, the leg being divided into two opposed segments by two slits inserted longitudinally therein from the lower end of the leg upwardly, whereby the insertion of a screw from above the flange into the through hole causes the leg to bulge outwardly and consequently come into tight engagement with the inner wall of the perforation in the panel. The improvement resides in having the leg divided into two segments by two slits inserted longitudinally therein in such a way that the lateral directions thereof do not coincide with any of the radii drawn from the central line of the through hole.
Patent CA-1116309-A (CA)
Inventor: BERGERON DAVID L
IPC: H01L21/331
Filed: 1978-10-04
Granted: 1982-01-12
Abstract: STRUCTURE AND PROCESS FOR OPTIMIZING THE     ABSTRACT OF THE DISCLOSURE          An improved I2L structure and process are disclosed which reduces the minority carrier charge storage, increases the emitter injection efficiency and reduces the emitter diffusion capacitance in the upward injecting vertical NPN transistor and reduces the minority carrier charge storage and increases the collector efficiency in the lateral PNP transistor.  This is accomplished by ion-implanting a p-type region in the epitaxial layer, through an insulating layer on the surface having an emitter window over the vertical NPN transistor, so that its concentration contour peak follows the contour of the insulating layer so as to be closer to the subemitter in the intrinsic base region than in the extrinsic base region of the vertical transistor, thereby imposing a concentration gradient induced electric field in the intrinsic base region which will aid in the movement of the minority carrier charges from the buried emitter into the intrinsic base region of the vertical transistor while at the same time reducing the tendency of the minority carriers to stay in the region of the epitaxial layer between the subemitter and the base in the vertical NPN and between the buried N region and the collector region of the lateral PNP.