baber/WOPTO huggingface dataset:
Patent CA-1149391-A (CA)
Inventor: STIRLING IRENE
IPC: C07D498/04
Filed: 1979-07-30
Granted: 1983-07-05
Abstract: ABSTRACT     The present invention provides a process for the preparation of a compound of the formula (I):                       (I)   wherein R1 is a hydrogen atom, an alkyl group of up to 5 carbon atoms, a cycloalkyl group of 5 or 6 carbon atoms, a hydroxyalkyl group of up to 5 carbon atoms or a moiety of the sub formula (a):                  (a) wherein R2 is a hydrogen, fluorine, chlorine or bromine atom or an alkyl group of 1 - 3 carbon atoms, an alkoxyl group of 1 - 3 carbon atoms, an acyloxyl group of 1 - 3 atoms, a hydroxyl group, an alkoxycarbonyl group containing 1 - 3 carbon atoms in the alkoxy part, or a group -N(R5)CO.R6, -N(R5)SO2R6 or -CO-NR5R6 where R5 is a hydrogen atom or an alkyl group of 1 - 3 carbon atoms or a phenyl or benzyl group and R6 is an alkyl group of 1 - 3 carbon atoms or a phenyl or benzyl group; R3 is a hydrogen, fluorine or chlorine atom or an alkyl group of 1 - 3 carbon atoms, an alkoxyl group of 1 - 3 carbon atoms or an acyloxyl group of 1 - 3 carbon atoms; and R4 is a hydrogen fluorine or chlorine atom or an alkyl group of 1 - 3 carbon atoms or an alkoxyl group of 1 - 3 carbon atoms.  The disclosed process comprises inter alia the hydrogenation of a compound of the formula (III):                                      (III)   or a hydrogenolysable ester thereof wherein Rl is as defined in relation to formula (I) or Rl is R11 a moiety that on hydro-genation provides a group Rl as defined in formula (I), R8 is a lower atom or a lower alkyl group and R10 is a hydrogen atom or a lower alkyl or phenyl group.  The compounds of the formula (III) are useful intermediates and as such form part of this invention.
Patent CA-1099210-A (CA)
Title: Enhanced oil recovery using electrical means
Inventor: SACUTA ALEKSY
IPC: E21B43/22
Filed: 1979-08-08
Granted: 1981-04-14
Abstract: "ENHANCED OIL RECOVERY USING ELECTRICAL MEANS"           ABSTRACT OF THE DISCLOSURE A process is provided for recovery of oil from an oil and water bearing formation wherein spaced injection and production wells penetrate the formation and a drive fluid is injected through the injection well into the formation.  A unidirectional electrical potential gradient is maintained between anode means in the production  well and cathode means in the injection well adjacent the formation.  In this manner, water flow toward the production well is retarded to enhance recovery efficiency.  The process is particularly applicable in heavy-oil-bearing formations.  In this case the formation is first preheated and heated drive fluids injected to improve the oil mobility within the formation.
Patent CA-1133756-A (CA)
Title: Inking unit attachment for lithographic printing  machine
Inventor: HOVEKAMP JOHN C
IPC: B41F31/30
Filed: 1979-08-23
Granted: 1982-10-19
Abstract: INKING UNIT ATTACHMENT FOR LITHOGRAPHIC PRINTING MACHINES             ABSTRACT OF THE DISCLOSURE         An inking-unit attachment for a printing press includes a fountain roller, a ductor roller for rocking movement between the fountain roller and a receiver roller, an idler roller in the nip between the receiver roller and an oscillator roller, and a pair of form rollers for trans-ferring ink from the oscillator roller to the plate cylinder of the printing press.  The receiver and oscillator rollers rotate at different peripheral speeds to provide a skidding action between one or both of such rollers and the idler roller to provide an even distribution and an increased quantity of ink to the oscillator roller.  A three-function cam serves to reciprocate the oscillator roller in an axial direction, rock the ductor roller between positions in engagement with the fountain and receiver rollers respec-tively, and intermittently to drive the fountain roller.          The form rollers are movable between a position in the nip between the oscillator roller and plate cylinder, a position spaced from the plate cylinder and engaged with the oscil-lator roller, and a lift position spaced from both the plate cylinder and oscillator roller.  The inking-unit attachment is adapted to be releasably hung on the frame of the print-ing press, and to be driven from the plate-cylinder gear on the printing press through a shaft affixed to the plate-cylinder frame, where the shaft has an overload clutch to guard personnel from injury and the unit from damage.  The form roller has positioning and adjusting means to permit its spacing with respect to the plate cylinder, indepen-dently of the attitude and position of the inking unit.  The construction of the unit permits the isolation of the ink-carrying members and mechanism requiring lubrication, where-by contamination of the ink is minimized; the structural integrity of the unit minimizes ink spatter and misting on nearby objects.  Access covers protect the ink from con-tamination from exterior sources and from exposure to in-cident radiation, and decrease the exposure of operating personnel to the hazard of moving parts.
Patent CA-1119771-A (CA)
Inventor: OSTROWSKI RICHARD C
IPC: B22C9/00
Filed: 1979-09-25
Granted: 1982-03-16
Abstract: Method of Making and Using A Ceramic Shell Mold Abstract A method of making a shell mold includes alternately applying a ceramic coating composition and a stuccco composition to an expendable pattern, the presence of graphite being substantially avoided therein, and applying a barrier coating thereto including a ceramic powder, a binder, and a preselected amount of graphite.  A preferred range of graphite of about 13 to 17 Wt. % in the barrier coating minimizes decarburization of a ferrous article formed in the cavity of the shell mold.
Patent CA-1134911-A (CA)
Inventor: KIM SANG H
IPC: G01N27/333
Filed: 1979-10-03
Granted: 1982-11-02
Abstract: HALIDE ION-SELECTIVE DEVICES                 ABSTRACT OF THE DISCLOSURE Halide, especially chloride and bromide, ion-sensitive devices which are insensitive to uric acid, and other interfering materials while demonstrating extended shelf lives, are described.  Such devices comprise a silver halide layer bearing a thin cellulose ester layer which contains at least one polyol having from 2 to 6 hydroxyl groups.
Patent CA-1136450-A (CA)
Inventor: LERMAN MARTIN D
IPC: A63B23/03
Filed: 1979-10-04
Granted: 1982-11-30
Abstract: ORAL DEVICE     Abstract of the Disclosure A device adapted to be placed in the human mouth for-treating among other things temporomandibular joint dysfunctions comprising an elongated flexible plastic body having occlusal portions at the extremities thereof, the occlusal portions being interconnected at their forward or anterior ends by a labial portion.  The occlusal portions each are provided . with an enlarged fluid-containing passage.  The passages in the occlusal portions are interconnected by a restricted passage which transverses the labial portion of the body.  The occlusal portions form enlarged cells which are adapted to be positioned between the posterior teeth on each side of the mouth, and constitute occlusal pressure responsive means for hydrostatically compensating for any differences in pressure resulting from occlusal forces applied to each of the cells by the posterior teeth of the of the mouth.  As a result, the occlusal forces which would normally be applied to the teeth are equalized and are axially oriented.  The overall effect is to elimlnate compensa-tory contraction or adjustment of the masticatory muscles, thereby enabling those muscles to function in a less strained manner, and to establish a more physiological or undistorted, skull-mandible relationship.
Patent CA-1139620-A (CA)
Inventor: FORTUNE WILLIAM S
IPC: B23K1/018
Filed: 1979-10-17
Granted: 1983-01-18
Abstract: ABSTRACT           A vacuum desoldering tool and tool cleaner system is disclosed.  The desoldering tool is connectible at will to a vacuum source and features a venturi exhaust and separate muffler or end cap for the tool.  The venturi throat is relatively short and preferably has a ratio of the input throat to the output throat of 4 to 1 or more. me muffler or end cap has a smooth rounded surface and is provided with radially extending openings to serve as an exhaust and muffler.  me tool also has an end cap and nozzle tip therefor which are connected to a metallic sleeve of the main portion of the tool by a threaded adaptor ring into which the end cap connects by a snap connection.
Patent CA-1121688-A (CA)
Inventor: DE LA BURDE ROGER Z
IPC: A24B3/18
Filed: 1979-10-26
Granted: 1982-04-13
Abstract: REORDERING EXPANDED TOBACCO BY WATER MIST          Abstract of the Disclosure A process for rapidly and uniformly reordering tobacco material which has been subjected to an expansion treatment is disclosed.  The process comprises spraying the tobacco material with a fine water mist characterized by an average droplet size of between about 1 and 120 microns diameter.
Patent CA-1112636-A (CA)
Title: Drill machine guidance using natural occurring  radiation
Inventor: DAHL HILBERT D
IPC: E21B47/022
Filed: 1979-11-02
Granted: 1981-11-17
Abstract: Abstract of the Disclosure A method for guidance of a drilling apparatus along a desired path within a substantially horizontal coal seam, such method utilizing the natural radioactivity that is commonly present in mineral beds associated with coal deposits.
Patent CA-1121006-A (CA)
Inventor: CORNISH WILLIAM D
IPC: H03B19/18
Filed: 1979-11-16
Granted: 1982-03-30
Abstract: ABSTRACT          A microwave frequency divider operable in 8-16 GHZ range.  A circuit resonant at a subharmonic frequency is formed by a pair of input microstrip transmission lines coupled to a pair of output microstrip transmission lines.  Each input line is terminated by a varactor diode.  The input signal is supplied to the resonant circuit by a pair of microstrip lines functioning as a two stage quarter wave transformer.  A metal plate positioned over the resonant circuit and closely spaced from it functions to extend the upper end of the frequency range.  A bias supply line for the diodes has a portion passing through a resistive foam block to remove spurious signals.  A movable stub is positioned along the bias supply line to extend the lower end of the frequency range.
Patent CA-1110469-A (CA)
Title: Multistage change-speed apparatus for a tractor
Inventor: YOSHIDA JITUO
IPC: F16H3/32
Filed: 1979-12-04
Granted: 1981-10-13
Abstract: ABSTRACT OF THE DISCLOSURE          The invention provides a multistage change-speed apparatus for a tractor has a running-travel-system change-speed gearing apparatus, a planetary gearing reduction apparatus operatively connected to that apparatus, an intermediary transmission shaft driven by this apparatus, a speed-reduction shaft disposed beneath that shaft, a bevel pinion shaft disposed in parallel with this shaft, an auxiliary change-speed gearing apparatus disposed between these two shafts, and a differential operatively connected to that apparatus.  The planetary gearing reduction apparatus is shiftable between the operative state and the inoperative state.
Patent CA-1148706-A (CA)
Inventor: DAVISON ROBERT W
IPC: D06M101/20
Filed: 1980-01-16
Granted: 1983-06-28
Abstract: PREPARATION OF HYDROPHILIC POLYOLEFIN      FIBERS FOR USE IN PAPERMAKING                  Abstract of the Disclosure Water-dispersible, uniformly hydrophilic polyolefin fibers are prepared by treatment of an aqueous suspension of spurted polyolefin fibers with an aqueous solution of a water-soluble ionized reagent capable of being converted into hydrated solid particles submicron in size to form a dispersion of said fibers and then adding to the dispersion an ionic precipitant for the ionized reagent.  Representa-tive of the ionized reagent and the ionic precipitant are the sodium salt of hydrogenated rosin and papermakers' alum, respectively.
Patent CA-1164828-A (CA)
Inventor: MAIER MAXIMIN K
IPC: B07C5/342
Filed: 1980-01-18
Granted: 1984-04-03
Abstract: ABSTRACT OF THE DISCLOSURE           In the preferred embodiment of the present invention, a television camera is oriented with respect to a conveyor belt such that the direction of the scanning lines of the television camera are perpendicular to the direction of motion of the conveyor belt.  Material containing foreign bodies is intro-duced on the conveyor belt and passes under the television camera and a light source.  The television camera detects the reflected and/or radiant light and produces a video signal in accordance therewith.  The image component of the video signal for each of the scanning lines is divided into signal portions.  Like signal portions of respective scanning lines are successively integrated in an integration circuit to provide a non-zero signal when a foreign body is detected by the television camera. The output of the integration circuit is applied to a threshold switch, which produces a logical one when the value of the output of the integration circuit is equal to or exceeds an adjustable reference value.  The outputs of the several threshold switches, each associated with an integrator and thereby with the like signal portions of the respective scanning line, are combined according to a logical OR operation in a logic circuit, the output of the logic circuit being used to drive a solenoid valve in order to reject material containing foreign bodies.          The aforementioned apparatus and operation are repeated with at least one salient difference, the color of the conveyor belt, in order to enable removal of both light and dark foreign bodies.
Patent CA-1125176-A (CA)
Title: Windmill tower
Inventor: SCHACHLE CHARLES V
IPC: E04B1/34
Filed: 1980-04-16
Granted: 1982-06-08
Abstract: WINDMILL TOWER .            ABSTRACT OF THE DISCLOSURE    A windmill tower supports a propeller and a platform that in turn supports a propeller feather control system and a generator system.  The entire tower rotates at its base under changes in wind direction so the rotating propeller is constantly maintained upwind of the tower. The tower is a rigid structure that withstands cyclic thrust and torque loading sufficiently to reduce resonant vibrations of the tower as the propeller rotates under the influence of the wind.  The resonant frequency of the tower can be higher than the passing frequency of the rotating propeller blades.  The tower includes a pair of generally upright fore legs that converge upwardly toward a first apex on the propeller axis of rotation near the front of the platform immediately behind the propeller hub.  A diagonal bracing strut extends downwardly from the first apex away from the plane of the fore legs and toward the rear of the tower.  The bottoms of the fore legs and the diagonal bracing strut are rigidly interconnected by base plane truss members.  A pair of upwardly converging aft legs extend diagonally upwardly from the bottoms of the fore legs toward a second apex aft of the first apex at the rear of the platform. At regular vertical intervals, stiffening trusses add rigidity to the main upright members of the tower structure.  The natural frequency of the tower is raised  by the fore legs and the diagonal bracing strut being inter-connected in a rigid base plane truss.  The diagonal bracing strut resists thrust loading on the tower, and the fore legs and and aft legs resist torsional forces produced at the top of the tower.
Patent CA-1180689-A (CA)
Inventor: BERGERON HERVIN J JR
IPC: F24D11/00
Filed: 1980-07-02
Granted: 1985-01-08
Abstract: ABSTRACT OF THE DISCLOSURE         An improved heat transfer and air circulation system for homes and like constructions is described.  A mass of re-latively non-heat conductive aggregate supports the slab or floor of the home.  Air is circulated by a blower from the interior of the home into and through the aggregate mass positioned between the slab and the underlying supportive earth, and thence back into the interior of the home.  Heat transfer occurs be-tween the supportive earth and the air flowing through the aggregate mass and between the air flowing through the aggregate mass and the slab.  Thus, slab itself becomes a heat transfer surface.  The aggregate mass is enveloped by a film sheet to prevent water flow into the aggregate mass from the surroundings.
Patent CA-1144163-A (CA)
Inventor: TAKACS KALMAN
IPC: C07D217/12
Filed: 1980-07-04
Granted: 1983-04-05
Abstract: ABSTRACT The invention concerns new sulfur-containing isoquinoline derivatives. More particularly, the invention relates to isoquinoline derivatives of the gen-eral formula (I) (I)   wherein R independently represents hydrogen, hydroxyl or alkoxy having 1 to 4 carbon atoms, R1 is hydrogen, alkyl having 1 to 4 carbon atoms and optionally substituted with phenyl, phenyl optionally substituted with one or more halogen or alkoxy group, cyano or carbamoyl, R2 is phenyl optionally substituted with one or more halogen, alkoxy or carboxyl, or a group of the general formula A       wherein R3 is hydrogen, a straight or branched chained alkyl having 1 to 4 car-bon atoms or phenyl, m and n independently represent 0, 1 or 2, with the proviso that m + n is at least 1, R4 is hydrogen, phenyl, hydroxyl, acyloxy, carboxyl, alkoxycarbonyl having 1 to 6 carbon atoms, carbamoyl, carbazoyl or dialkylamino containing 1 to 6 carbon atoms in the alkyl moiety, or R2 is a straight or branched chained alkylene group having 1 to 6 carbon atoms, and the dotted line stands for a further carbon-carbon bond or hydrogen atoms in the 3- and 4-posi-tions of the ring, and salts and cyclic amides thereof.  The new compounds pos-sess valuable pharmaceutical activities, more particularly, are potent diuretic, antiasthmatic, hypotensive and antiinflammatory agents.  Thus another aspect of the invention is a pharmaceutical composition which comprises as active ingredi-ent a pharmaceutically effective amount of at least one compound of the general formula (I) with at least one pharmaceutically inert carrier or diluent.  The invention also relates to a process for preparing these compounds.
Patent CA-1131640-A (CA)
Inventor: HORI TAKAKO
IPC: A61K31/495
Filed: 1980-07-14
Granted: 1982-09-14
Abstract: ABSIRACT OF THE DISCLOSURE          A 1-(4-aminobenzyl)-2,3-dioxopiperazine derivative represented by the formula:       and an acid addition salt thereof have excellent carcinostatic activity but a low toxicity.  Therefore, said compounds are useful as medicines and also as intermediates.
Patent CA-1135503-A (CA)
Inventor: TREKEL RAINER
IPC: A01K73/02
Filed: 1980-07-17
Granted: 1982-11-16
Abstract: ABSTRACT OF THE DISCLOSURE:     A tandem drag-net for fishing on a commercial scale, from stern-trawlers, on the high-seas or in coastal waters.          The invention improves the catching efficiency of drag-nets, reduces the material-cost of producing them, and makes it possible to pick up again any fish escaping from the fine-mesh funnel of the drag-net and while retaining the same size of drag-net mouth and the same towing speed, to reduce the cost of netting and rope.  A tail-less main drag-net, and a tail-net enveloping the rear part thereof, are arranged in tandem.  The main drag-net is made of extremely thin material, and the tail-net is connected to the drag-net harness by means of ropes.  There is no positive connection between the rear end of the main drag-net and the enveloping portion of the tail-net.
Patent CA-1131923-A (CA)
Inventor: BAKER CECIL J
IPC: F25C5/18
Filed: 1980-08-22
Granted: 1982-09-21
Abstract: "ICE RECEPTACLE SUPPORT"               ABSTRACT OF THE DISCLOSURE         An ice receptacle support for use in a refrigera-tion apparatus, such as a freezer, wherein ice bodies are stored in an upwardly opening receptacle.  The receptacle is removably carried on a support which is swingably mounted by a front pair of links and a rear pair of links so as to be gravity biased forwardly against a small access door carried in the main door of the freezer.  When the small access door is opened, the receptacle swings forwardly as a result of the forward gravity biasing thereof by the supporting link arrange-ment so as to place the receptacle automatically in an ice access position.  The links are arranged to provide a controlled limited force of the gravity biasing so as to effectively avoid undesirable opening of the freezer doors by the gravity biasing force.  The front pair of links may be pivotally connected to a front upper portion of the receptacle carrier and the rear pair of links may be pivotally connected to a lower rear por-tion thereof.  The front links include pivotally mounted lower end portions and the rear links include pivotally mounted upper end portions.
Patent CA-1159473-A (CA)
Inventor: AL-MUDDARRIS GHAZI R
IPC: C07C41/06
Filed: 1980-10-02
Granted: 1983-12-27
Abstract: PROCESS FOR THE MANUFACTURE OF METHYL TERT.-BUTYL ETHER                  ABSTRACT           A process is described for producing methyl tert.-butyl ether in which n-butane is isomerised to isobutane which is then catalytically dehydrogenated to form an isobutane/isobutene mixture, whilst natural gas is reformed to form synthesis gas containing CO and H2 which is in turn converted to methanol, the resulting methanol being etherified with isobutene in the isobutane/isobutene mixture to form methyl tert.-butyl ether.  Isobutane is separated from the resulting etherification mixture and is recycled to the dehydrogenation stage.  Secondary product gases from at least one of the isomerisation, dehydrogenation and methanol synthesis stages are combusted and used to produce superheated steam at high pressure which is expanded to a medium pressure by expansion through at least one first back-pressure turbine coupled to a corresponding compressor or compressors for compression of at least one of the synthesis gas and of the dehydrogenation product gas, whilst resulting medium pressure steam is expanded in turn through at least one second back-pressure turbine to a low pressure in excess of atmospheric pressure, such low pressure steam being utilised for heating process apparatus.
Patent CA-1151239-A (CA)
Title: Commutation circuits for thyristor inverters
Inventor: BHAGWAT PRADEEP M
IPC: H02M7/523
Filed: 1980-09-25
Granted: 1983-08-02
Abstract: TITLE          COMMUTATION CIRCUITS FOR THYRISTOR INVERTERS                              INVENTORS                       Pradeep M. Bhagwat Victor R. Stefanovic ABSTRACT OF THE DISCLOSURE         The commutation circuit for commutating a conducting thyris-tor includes an inductance, a capacitance and a commutation thyristor all connected in series with the conducting thyristor and the dc source, the commutation thyristor initiates the commutation when trig-gered.  The circuit further includes a first diode connected in reverse polarity across the commutation thyristor and a second diode connected in reverse polarity across the commutation thyristor-capacitance series circuit.  The voltage across the capacitance is zero when each commuta-tion cycle is initiated, and also when each commutation cycle ends.