baber/WOPTO huggingface dataset:
Patent CA-1083159-A (CA)
Inventor: WHITE GEORGE R
IPC: C07D213/30
Filed: 1976-04-30
Granted: 1980-08-05
Abstract: ABSTRACT OF THE DISCLOSURE           A process is disclosed for the preparation of amino compounds and particularly 2-amino-2-alkylthio-1-nitro-ethylenes.  These compounds are useful intermediates in the production of histamine H2-antagonists.
Patent CA-1069983-A (CA)
Title: Methode electronographique d'exploration des organismes vifs dans des investigations fonctionnelles et diagnostiques
Inventor: DUMITRESCU LOAN-FLORIN
IPC: G03G17/00
Filed: 1976-05-04
Granted: 1980-01-15
Abstract: L'invention traite d'une méthode électronographique d'exploration dans le but de l'investigation fonctionnelle et diagnostique des caractéristiques électriques des tissus et des organismes vifs. Cette méthode est caractérisée en ce qu'on effectue l'exploration des tissus ou des organismes vifs en plaçant ces derniers entre les armatures d'un condensateur dont les surfaces intérieures sont couvertes avec une pellicule photo-sensible, papier ou film, et en les exposant, dans l'obscurité ou sous la lumière de protection, à un champ électrique de haute tension engendré sous forme d'impulsion à polarité déterminée, front contrôlé et amplitudes situées aux limites critiques de micropénétration et polarisation des tissus, les images obtenues après développement étant analysées quant à leur forme, l'intensité de l'exposition, et leur homogénéité, et comparées aux deux configurations obtenues sur les pellicules photosensibles fixées sur les armatures du condensateur.
Patent CA-1068784-A (CA)
Inventor: SCHMIDT HARVEY E
IPC: H02P7/29
Filed: 1976-05-04
Granted: 1979-12-25
Abstract: FORCED COMMUTATION CHOPPER HAVING CURRENT LIMIT                 ABSTRACT OF THE DISCLOSURE A forced commutation chopper control for regulating speed of a DC series tractive motor limits peak motor current by sensing the voltage across the commutation capacitor during the on-time of the current pulses and gating the commutation SCR on, to thereby commutate the main SCR off and terminate the current pulse to the motor, after a variable time delay subse-quent to initiation of charging of the commutation capacitor, the duration of which delay is a function of the rate of rise of the voltage on the commutation capacitor, and after the voltage on the commutation capacitor has reached a steady-state value.
Patent CA-1087146-A (CA)
Inventor: HOLLAND MAXWELL S
IPC: B22F8/00
Filed: 1976-05-20
Granted: 1980-10-07
Abstract: ABSTRACT OF THE DISCLOSURE       A method of converting scrap metal to a powder suitable for making sinterable shapes is disclosed. Scrap metal equivalent to machine turnings, is subjected to a two-cycle process which graduates the conversion of turnings to powder.  The scrap metal, in the first cycle, is cooled to a temperature below the ductile-brittle transition point for said metal and fragmented by impact to a particle size of -1/4 inch.  In the second cycle, the fragmented pieces are again cooled to  below the ductile-brittle transition temperature and comminuted to a fine powder for -30 mesh.  During each cycle, a cryogenic cooling medium is injected into the metal collection both at the entrance to fragmenting or comminuting apparatus as well as into a circulating mass of the metal within the apparatus.  Screens are employed to classify the output of each apparatus and each have screen opening shaped to maximize through-put.         The resultant converted powder is subjected to annealing, powder blending, compaction, and sintering to provide a sintered shape.
Patent CA-1048939-A (CA)
Inventor: SIEREN GERALD E
IPC: B60D1/14
Filed: 1976-06-07
Granted: 1979-02-20
Abstract: FOUR-WHEEL DRIVE TRACTOR               ABSTRACT OF THE DISCLOSURE         A four-wheel drive tractor with front-wheel steering on the front axle and rear-wheel articulated steering to provide maximum traction, stability, and maneuverability.  The front axle pivots on a pivot longitudinal with the vehicle body and the front wheels pivot relative to the axle to steer the front end of the vehicle.  The articulated vehicle bearings are positioned near the rear axle to provide a long front frame supporting portion for the operator station of the vehicle and to improve stability of the vehicle when the vehicle is articulated.
Patent CA-1056647-A (CA)
Inventor: ADAMS CECIL E
IPC: F03C1/30
Filed: 1976-06-14
Granted: 1979-06-19
Abstract: ABSTRACT      A control for an axial piston type variable displace-ment fluid energy translating device has an auxiliary control device which connects to a manual control and provides a variety of operating functions for the fluid energy trans-lating device.
Patent CA-1054450-A (CA)
Inventor: BRUSH JOHN D JR
IPC: E05G1/024
Filed: 1976-06-16
Granted: 1979-05-15
Abstract: SAFE AND SAFE CONSTRUCTION METHOD     Abstract of the disclosure A safe has a self-sealing jamb where the door confronts and fits together with the box.  This is done by forming the con-fronting surfaces in the jamb region of a resin material and making the jamb region non-linear in cross section and long enough in cross section so that after an outer portion of the resin material is burned off in a fire, a charred residue and a plasti-cized portion of the resin material remain in the jamb region to seal the door to the box around the jamb region for substan-tially preventing heat conduction or passage of hot gasses through the jamb region to the interior of the box.  The safe can also be formed in a resin mold for the box and the door with the mold remaining in place when the safe is used.  The mold is preferably filled with a non-flammable, thermal insulating material having a substantial volume of chemically bonded water and made thick enough to maintain the interior of the box below 180°C for one hour in an ambient atmosphere of about 927°C.  The box then lacks any external metallic shell so that the molded insulating material is exposed directly to the ambient atmosphere after the exterior resin casing is burned off in a fire.  This also improves the heat resistance of the safe.
Patent CA-1055149-A (CA)
Inventor: MANSKE HANS E
IPC: H01F13/00
Filed: 1976-06-22
Granted: 1979-05-22
Abstract: ABSTRACT OF THE DISCLOSURE A color television receiver includes a voltage regulating transformer and resonating capacitor for supplying power to receiv-er circuitry and to a color picture tube subject to extraneous magnetization.  An automatic degaussing circuit includes a degauss-ing coil adjacent to the picture tube, a thermally responsive element and a tuning capacitor, are series connected across a portion of the transformer secondary winding.
Patent CA-1061447-A (CA)
Inventor: SLATER JONATHAN E
IPC: H04R1/44
Filed: 1976-07-21
Granted: 1979-08-28
Abstract: ABSTRACT OF THE DISCLOSURE     An electroacoustic transducer is described, suitable for underwater operation.  The transducer is of the folded-head type, having a head section and a tail section.  The head section includes a folded portion which cooperates with the tail section to define a transducer cavity.  This cavity is adapted to house electroacoustic driving means, preferably in the form of a series of rings of a piezo-electrically active ceramic.  In a preferred embodiment the ceramic is a lead-zirconate-titanate piezoelectric ceramic.  The electro-acoustic driving means is activatable to cause the transducer to generate an electroacoustic signal.  The present transducer comprises an exterior end face on both the folded portion of the head section and of the tail section, which are in substantially the same plane.  The folded portion and tail section are dimensioned to provide a positive gap therebetween.  This gap precludes friction-al engagement between the folded portion and the tail section during energiza-tion of the electroacoustic driving means.  Further, the coplanar end faces cause acoustical phase cancellation of the signal generated from such faces of the transducer, thereby enabling a signal transmitted from the transducer to be essentially uni-directional.
Patent CA-1052206-A (CA)
Inventor: HODGE PETER C
IPC: F02M31/04
Filed: 1976-08-30
Granted: 1979-04-10
Abstract: An air heater system for a compression ignition engine comprises a combustion chamber which includes a burner through which fuel is supplied to the combustion chamber.   A two stage fuel pump is provided to supply fuel to the burner with the output of the second stage being connected to the burner and the input of the second stage being connected to the output of the first stage.   Valve means is provided to ensure that there is substantially no pressure drop across the second stage of the pump and control means is provided to control the speed of operation of the pump so that the rate of fuel delivery to the combustion chamber can be closely controlled.
Patent CA-1060341-A (CA)
Inventor: PISIO PETER
IPC: E21B43/24
Filed: 1976-09-22
Granted: 1979-08-14
Abstract: ABSTRACT OF THE DISCLOSURE SYSTEM FOR RECOVERING VISCOUS PETROLEUM FROM THICK TAR SAND           Recovery of viscous petroleum such as from thick tar sands is assisted using a closed-loop flow path formed in a wall by concentric casing and tubular members extending from the earth's surface through a substantial portion of the formation for conducting hot fluid to reduce the viscosity of the petroleum in the formation to develop a potential passage in the formation outside the flow path into which a drive fluid is injected to promote movement of the petroleum to the wall for production up a production flow line extending up the interior of the tubular member.
Patent CA-1090576-A (CA)
Inventor: MACHLAN GEORGE R
IPC: C03B37/08
Filed: 1976-09-23
Granted: 1980-12-02
Abstract: ABSTRACT OF THE DISCLOSURE           A method of processing heat-softened glass comprising flowing streams of the glass from orifices in a stream feeder includes the steps of attenuating the glass streams to fibers.      Heat is conducted away from the glass streams through metal members adjacent the glass streams.  Streams of gas are directed above the metal members for reducing condensation of volatiles from the glass streams on the metal members.
Patent CA-1075029-A (CA)
Inventor: COMBER RICHARD
IPC: A24B1/00
Filed: 1976-11-18
Granted: 1980-04-08
Abstract: ABSTRACT A method for the treatment of tobacco, including curing and drying thereof, comprises applying a leaf-wilt accelerating chemical agent to parts of growing mature tobacco plants, allowing the leaves to wilt over a period of 2 to 50 days to effect a reduction of the water content of the leaves of at least one quarter by weight without killing the whole plant, harvesting the leaves and processing the harvested leaves for use as tobacco-smoking, chewing or snuff products.  The agent may be applied by spraying the leaves or by way of the roots or stalks of the plants.
Patent CA-1065162-A (CA)
Inventor: BACK CARL F
IPC: F16D25/08
Filed: 1976-11-18
Granted: 1979-10-30
Abstract: POWER TRANSFER MECHANISM                 ABSTRACT OF THE DISCLOSURE    The power transfer mechanism includes an input shaft which may be selectively connected to one of two or more output shafts.  The input shaft leads to a housing which has an output shaft support plate slidably mounted in the housing. The housing also has mounted therein a rotatable clutch member connected to the input shaft, a rotatable clutch member connected to each output shaft and means for selectively coupling the clutch member of the input shaft with one of the output shaft clutch members.
Patent CA-1049060-A (CA)
Inventor: WEIR GARY L
IPC: B62D53/08
Filed: 1976-11-26
Granted: 1979-02-20
Abstract: Abstract A transport system of highway vehicles comprises a highway tractor which is connected to a highway trailer vehicle by means of an intermediate dolly.  The dolly includes an inclined frame supported at its lower rear end on a running gear and its forward end includes a king pin connected to the tractor fifth wheel.  A fifth wheel for connection to the highway trailer is movably mounted on the inclined frame.
Patent CA-1058069-A (CA)
Inventor: DUNCAN ANGUS D
IPC: B26D7/26
Filed: 1976-11-29
Granted: 1979-07-10
Abstract: ABSTRACT            Apperatus for cutting or scoring sheet  material e.g. glass, with rapid responses to irregularities in the surface of the sheet material and to commands to commence or interrupt a cut-ting or scoring operation, employs a fluid pressure actuated diap-hragm device to impart movement to a cutting or scoring tool, e.g. a cutting wheel, towards and away from the surface to be cut or scored, and means for controlling selectively the pressure acting on each side of the diaphragm.  The tool may be supported and guid-ed in a cutter head which incorporates the diaphragm device and which carries supporting means, such as a pair of wheels, for supporting the cutter head on the surface of the material when the tool is retracted.  Fluid pressure supply to the diaphragm device and to a  separate piston device for applying the cutting load can be controlled by solenoid-operated valves.  Supply of a cutting fluid to the tool can be similarly controlled.
Patent CA-1097401-A (CA)
Inventor: SUZUKI TADAO
IPC: H02M3/156
Filed: 1976-12-22
Granted: 1981-03-10
Abstract: ABSTRACT OF THE DISCLOSURE             A switching regulator includes a chopper circuit and a DC-DC converter. A switching signal for use with the chopper circuit is derived from an inverter portion of the DC-DC converter so as not to use an external pulse oscillator. A DC voltage feedback circuit is provided from the output of the DC-DC converter to the chopper circuit so as to stabilize the DC output signal of the DC-DC converter.                    -i-
Patent CA-1098713-A (CA)
Inventor: FRANKIEWICZ THEODORE C
IPC: C22B47/00
Filed: 1977-01-28
Granted: 1981-04-07
Abstract: ABSTRACT OF THE DISCLOSURE         Selective sulfation process for quantitatively converting non-ferrous metals chosen from the group con-sisting of copper, nickel, cobalt, vanadium, and manganese in an ore concentrate to soluble sulfates and simultaneously converting the ferrous values in the ore to insoluble oxides.  The process comprises roasting finely divided ore particles at a temperature in excess of 650° C in the presence of a roaster gas comprising at least a stoichio-metric amount of oxygen and at least 1% SO2. The roasting is performed in the presence of a sufficient amount of a mixture of salts to allow the formation of a liquid coat-ing on the ore particles.  In a preferred embodiment, the mixed salt which forms the liquid coating comprises Na2SO4 and K2SO4 with the ratio of sodium to potassium being between 1.0 and 2Ø
Patent CA-1087251-A (CA)
Inventor: THOMAS LESLIE D
IPC: H04N5/00
Filed: 1977-02-01
Granted: 1980-10-07
Abstract: POWER CONTROL ON SATELLITE UPLINKS            ABSTRACT OF THE DISCLOSURE         A system for controlling the output power of a transmitter which communicates with a remotely positioned receiving station through a "linear" transponder such that the power level of the input signal to the transponder is substantially constant is disclosed.  The output signal of the transmitter and the input signal to the transponder includes two carriers having predetermined relative power levels with respect to each other.  Typically, one carrier will be 10 dB below the other.  Since all "linear" trans-ponders are slightly non-linear, intermodulation distortion products are generated by the transponder.  The intermodu-lation products and the two carriers are retransmitted to the receiving station by the transponder.  The power level of the intermodulation distortion products relative to the low power carrier is measured at the receiving station.         From the power level of the intermodulation distortion products and the intermodulation distortion characteristics of the transponder, the power level of the input signal arriving at the transponder is determined and a signal generated to control the power output of the transmitter so that the input signal arriving at the transponder has the desired power level.  The carrier having the highest power level is modulated with the data to be transmitted using any convenient modulation technique.  The low power carrier is not normally modulated.  Its only purpose is to generate the intermodulation products which are used to determine the power level of the input signal to the transponder.
Patent CA-1090060-A (CA)
Inventor: MICHETTI JOSEPH A JR
IPC: D06M101/08
Filed: 1977-08-25
Granted: 1980-11-25
Abstract: VAPOR MODIFIED CELLULOSIC FIBERS             ABSTRACT      An improved wet-lay papermaking process is provided which employs substantially modified cellulosic fibers, said fibers being characterized by improved properties, such as reduced swellability and reduced natural fiber-to-fiber bonding. The fibers are produced by a process which comprises treating dry fibers with formaldehyde vapor to react with and internally cross-link the fibers by reacting with the formaldehyde itself and with the fibers. The fibers, when employed as a component of a papermaking furnish, produce improved cellulosic sheet materials which exhibit increased bulk and reduced swellability and dry tensile strength.
Patent CA-1090959-A (CA)
Inventor: SCHNEIDER HELMUT
IPC: A47L11/34
Filed: 1977-11-18
Granted: 1980-12-09
Abstract: ABSTRACT OF THE DISCLOSURE     A rapid rotating beater or soil-loosening roller for wet or dry carpet-claning apparatus which has a circular axial profile and a plurality of inclined angular projections defining between them annular grooves having widths of several millimeters.  The roller is formed unitarily or at least in part of a shape-retentive (rigid) material and the grooves between projections lie along a cylindrical surface.
Patent CA-1100576-A (CA)
Inventor: KATZ JONATHON H
IPC: H01B7/00
Filed: 1978-02-08
Granted: 1981-05-05
Abstract: ABSTRACT OF THE DISCLOSURE         An electrical tester for circuit boards in which test pins are mounted in a support derived from a corresponding unloaded circuit board and in which wires to the test pin run slidable in interfitting pairs of plastic sleeves.
Patent CA-1075948-A (CA)
Inventor: FAUL THOMAS L
IPC: B41B17/34
Filed: 1978-02-15
Granted: 1980-04-22
Abstract: ABSTRACT OF THE DISCLOSURE     This invention relates to and discloses a novel retaining means adapted to releasably secure a font to a rotatable character drum.  The retaining means comprises a first clip and a second clip, each clip being adapted to be secured to a respective side edge of the font. The first clip has flattened peripheral end portions which engage hooks on the drum and the second clip has flexible V-shaped end portions which interact with protrusions on the drum face, thereby releasably securing the font to a drum.  These clips have improved resiliency when compared to the clips of the prior art and securely hold the font to the drum thus overcoming the problem of the prior art clips being "thrown" off the drum.  The clips have sufficient tensile strength to seat the font correctly yet rigidly on the drum.
Patent CA-1081912-A (CA)
Inventor: CHALMERS ALEXANDER A
IPC: E04D3/30
Filed: 1978-02-15
Granted: 1980-07-22
Abstract: ABSTRACT     A cladding panel made from elongate ductile sheet and simulating a horizontal row of wooden shingles has an upper edge part arranged to lie against a surface to be covered and has a lower edge part which is flanged to cause the lower portions of the panel to be spaced outward from said surface.   The part of the sheet between the upper and lower edge parts is inclined outwards from top to bottom and is formed with raised shingle simulating portions alternating along the length of the panel with depressed shingle simulating portions, the planes of these portions being parallel.   Oblique web portions extend between adjoining edges of the shingle simulating portions and taper in width from the lower to the upper edge part of the panel.
Patent CA-1082706-A (CA)
Title: Optically active compounds
Inventor: BOLLER ARTHUR
IPC: C09K19/46
Filed: 1978-02-22
Granted: 1980-07-29
Abstract: ABSTRACT      Optically active pyrimidine derivatives of the general formula                 (I) wherein the symbol Z represents a group of the formula -(CH2)n- or -(CH2)n-O- in which n stands for an integer of 1 to 4 and each of the symbols X represents a nitrogen atom and each of the symbols Y represents -CH- or each of the symbols Y represents a nitrogen atom and each of the symbols X represents -CH-and their preparation.         The compounds of formula I are valuable components in liquid crystalline mixtures, particularly in combination with nematic components and are thus utilizable for electro-optic purposes.
Patent CA-1101609-A (CA)
Inventor: BEAZLEY KENNETH M
IPC: C09C1/42
Filed: 1978-02-22
Granted: 1981-05-26
Abstract: ABSTRACT OF THE DISCLOSURE                  A filler for paper or the like comprises particles of a white clay having (a) a particle size distribution such that it contains not more than 18% by weight of particles smaller than 2 microns equivalent spherical diameter, (b) an abrasion of less than 120 Valley, and (c) a brightness a white clay mineral to a two-stage particle size classification process, in order to obtain a product smaller than 2 microns equivalent spherical diameter, and thereafter subjecting it to a beneficiating process in order to reduce the number of particles having an abrasive character to a level such that the product has an abrasion of less than 120 Valley and removing or bleaching sufficient iron-containing impurities to ensure that the white clay mineral has a brightness of at least 76.
Patent CA-1107787-A (CA)
Title: Lock follower, particularly a cylinder follower, and a method of manufacturing the same
Inventor: TRANBERG ERIK R
IPC: E05B15/00
Filed: 1978-03-07
Granted: 1981-08-25
Abstract: Abstract A lock follower comprises two main parts, i.e. a central part and a cylindrical bearing part which are attached to each other.  The central part is punched from a sheet-metal blank.  The cylindrical bearing part partially surrounds the central part and has a slot through which a portion of the central part projects.  The bearing part may comprise a piece of tubular material or alternatively a strip of material wound to cylindrical shape on a portion of the periphery of the central part.  The two parts may be joined together by welding or by deformation of material belonging to either or both parts.     The invention also concerns a method of manufacturing a lock follower of the above-mentioned kind, whereby for the cylindrical bearing part initially either a tubular piece of material or a piece of strip material is used.
Patent CA-1112943-A (CA)
Inventor: LJUNGBERG STEN H
IPC: F42B3/26
Filed: 1978-03-13
Granted: 1981-11-24
Abstract: ABSTRACT OF THE DISCLOSURE         The present invention provides a primer intended to reinforce the explosive power of a detonator and containing an explosive enclosed in an essentially cylindrical casing with closed ends, one end being fitted with a device for centering and retaining the detonator in relation to the said casing, the detonator when in place in the primer partly protruding from the device into the explosive in direct contact with the latter, an ignition cable or fuse connected to that end of the detonator held inside said device passing laterally along a specially shaped groove or channel so as to be protected against external force, at least at one end of the primer.