baber/WOPTO huggingface dataset:
Patent CA-1071219-A (CA)
Title: Production of olefin oxides
Inventor: MCMULLEN CHARLES H
IPC: B01J23/00
Filed: 1976-02-05
Granted: 1980-02-05
Abstract: PRODUCTION OF OLEFIN OXIDES                       Abstract of the Disclosure A catalytic liquid phase process for the production of olefin oxides comprising admixing an olefin and hydrogen peroxide in the presence of an arsenic catalyst which is provided to the reaction as either elemental arsenic, an arsenic compound or mix-tures thereof, the arsenic content of said compound being present in catalytically active amounts, said compound being essentially free of tungsten, molybdenum, vanadium and chromium; and the temperature of the ad-mixture is in the range of about 25°C to about 200°C.     S P E C I F I C A T I O N
Patent CA-1043016-A (CA)
Inventor: ROTH PETER R
IPC: G06F7/58
Filed: 1976-02-13
Granted: 1978-11-21
Abstract: NOISE SOURCE FOR TRANSFER FUNCTION TESTING                  Abstract of the Disclosure A method and apparatus for obtaining an accurate measure of a transfer function of either a linear or the linear part of a nonlinear system.  This is accomplished by utilizing an estimation technique using a "periodic-random" stimulus consisting of a random stimulus of a finite record length that is repeatedly applied to the system under test until the stimulus and the system response become essentially periodic.  Once periodicity is achieved within the desired accuracy, a first estimate of the transfer function is derived from the measured spectrums of the stimulus and the system response.  Another "periodic-random" stimulus, uncorrelated with prior records, is then generated and the above procedure is repeated to achieve an average value of the transfer function within the desired accuracy.  Through the use of several "periodic-random" stimuli, leakage and distortion in the measurement is minimized, thus greatly improving the accuracy of the estimation technique in measuring the transfer function of the system under test.
Patent CA-1089097-A (CA)
Inventor: ONG KIAN K
IPC: H03J7/02
Filed: 1976-04-01
Granted: 1980-11-04
Abstract: ABSTRACT:             Combined pulse rate and pulse width modulation of an output signal of a circuit for comprising a digital signal to be converted with a periodically occurring series of digital comparison signals can be obtained by a proper choice of that series.      By means of the said circuit a digital-to-analogue converter can be obtained having a very small error which, owing to its low temperature sensitivity, is particularly suitable for use in tuning circuits, of, for example, television receivers.
Patent CA-1060811-A (CA)
Inventor: LEWKOWICZ JOSEF
IPC: F16N7/38
Filed: 1976-04-23
Granted: 1979-08-21
Abstract: ABSTRACT   The various air motors of a rock drilling rig are supplied with oil through oil lines which are furnished with predetermined metered oil flows from positive displacement pumps that are operated in synchronism with each other by an air operated oscillator.  There is a normally closed shut-off valve in each oil line.  The respective shut-off valve is opened when the respective air line is pressurized.  When a shut-off valve is closed, the respective metered oil flow escapes through a pressure relief valve.
Patent CA-1059654-A (CA)
Inventor: LEMAY CHRISTOPHER A G
IPC: H05G1/08
Filed: 1976-06-18
Granted: 1979-07-31
Abstract: Radiographic apparatus is described for evaluating the absorption coefficient of a body at each of a plurality of locations distributed over a planar slice disposed crosssectionally of the body.  A source is arranged to produce a fan-shaped, planar beam of radiation which is directed through the body, in the plane of said slice, and the source is orbited around the body about an axis perpendicular to the plane of said slice.  Detectors are provided, and orbited in synchronism with the orbital motion of the source, each to detect the radiation emergent from the body along a plurality of paths. In order to render the paths substantially linear despite the orbital motion, a lateral scan is imposed upon the source which is sufficient, over a predetermined time period, to substantially cancel the orbital motion and replace it by a lateral motion.
Patent CA-1092103-A (CA)
Inventor: EGGLER JAMES F
IPC: A61P25/20
Filed: 1976-10-12
Granted: 1980-12-23
Abstract: ABSTRACT OF THE DISCLOSURE 11-Desoxy-16-aryl-.omega.-tetranorprostaglandins and various intermediates and processes employed in their preparation are dis-closed.  The novel prostaglandins of this invention have been found to have activity profiles comparable to the parent prosta-glandins but they exhibit a greater tissue specificity of action.
Patent CA-1072263-A (CA)
Title: Procede de reticulation de fibres cellulosiques en suspension dans l'air
Inventor: LESAS CLAUDE
IPC: D06M13/12
Filed: 1976-10-13
Granted: 1980-02-26
Abstract: l'invention a pour objet un procédé de réticluation de la cellulose par formation de ponts entre molécules au moyen de formaldéhyde dans lequel la pâte à papier est défibrée, aérée, puis exposée à un mélange réactionnel sous forme de brouillard ou de vapeurs contenant outre de formaldéhyde, un catalyseur, l'acide chlorhydrique au moins à l'état de traces, et un troisième corps, l'acide formique dont le rôle est de servir à la fois d'agent catalytique, de vecteur pour le formaldéhyde sur la fibre, et, enfin, d'agent de gonflement. Ces fibres son ensuite introduities dans un courant d'air chaud aux environs de 180.degree.C pendant quelques secondes et enfin, séparées de effluents gazeux dans un cyclone.  Le procédé est mis en oeuvre rapidement et requiert de investissements limités.
Patent CA-1085017-A (CA)
Inventor: VOIGT ALLAN A
IPC: G02B17/08
Filed: 1976-10-18
Granted: 1980-09-02
Abstract: ABSTRACT    Apparatus for scanning the field of view of an optical objective.  A primary mirror is mounted for rotation about a spin axis.  A secondary mirror supports an electrical motor magnet and is mounted for rotation about the spin axis.  A non-rotating stator is mounted behind the secondary mirror and supports the electric motor coils.  The primary and secondary morrors are canted slightly out of parpendicularity with the spin axis.  The primary and secondary mirrors and the electric motor stator are fully gimbaled for tracking a target.  The scanning patterns of the primary and secondary mirrors combine to scan a rosette pattern across a sensor.
Patent CA-1068978-A (CA)
Inventor: BODOR JANOS
IPC: A23D7/02
Filed: 1976-11-08
Granted: 1980-01-01
Abstract: Abstract of the disclosure The invention relates to a process of preparing water-in-oil type low fat spreads and to low fat spreads so obtained.    The process of the invention provides proteinaceous low fat spreads, stabilised by means of a gelling agent of a melting point of 25-35°C and essentially containing proteins dissolved in the aqueous phase and/or undissolved protein particles having a major dimension of no more than 5 microns.    The preferred process involves preparing the aqueous phase by combining proteins in an aqueous medium under conditions at which flocculation is substantially avoided, dissolving the gelling agent in a substantially protein-free aqueous medium of a pH value of 1-7, combining the aqueous medium obtained and optionally adjusting the pH value to 3.0 to 6.8.
Patent CA-1039073-A (CA)
Title: Natural draft refrigerator including apparatus for permitting the condenser to move between a shipping position and an in-use position
Inventor: GRIFFIN JAMES R
IPC: F25D23/00
Filed: 1976-11-26
Granted: 1978-09-26
Abstract: ABSTRACT OF THE DISCLOSURE A natural draft refrigerator includes a condenser holding element which permits the condenser to move between a shipping and storage position, in which the condenser is held closely adjacent the outer rear wall of the refrigerator and an in-use position, in which the condenser is spaced from the refrigerator rear wall.  The refrigerator, there-fore, occupies less space during shipping and storage than when in use.  In a preferred embodiment of the invention, the holding element includes means for biasing the condenser toward the in-use position and the condenser is releasably held in the shipping and storage position by tape so that, upon installation, the installer simply cuts or removes the shipping tape and the condenser automatically moves rearwardly toward the in-use position.
Patent CA-1064580-A (CA)
Inventor: MORITA KOUJI
IPC: H03J5/02
Filed: 1976-12-22
Granted: 1979-10-16
Abstract: ABSTRACT OF THE DISCLOSURE           A relatively broad band automatic fine tuning circuit covering a frequency band at least approximately as broad as a television channel and including means to shift the frequency of the television tuner up or down, as necessary, to the proper frequency within the automatic tuning range.      A first control signal is obtained by comparing the average value of the envelope detected signal from the video detector with a voltage equal to the pedestal level if the signal were a properly tuned video signal.  If the actual average value of the envelope is between zero volts and the pedes-tal voltage, the tuner is either correctly tuned or tuned at a somewhat lower frequency than is correct.  If the voltage average value has a greater magnitude than the pedes-tal voltage the tuning of the tuner is too high.  A frequency discriminator receiving the video IF signal controls the automatic tuning operation close to the desire frequency.        A noise detector in the audio circuit controls a muting cir-cuit to disable AFT operation if the receiver is so far out of tune as to receive noise instead of an audio signal.
Patent CA-1077476-A (CA)
Title: 1-(substituted amino) alkanoyl-2-(dibenzoxazepine-10-carbonyl)-hydrazines and derivatives thereof
Inventor: MUELLER RICHARD A
IPC: C07D413/12
Filed: 1977-01-04
Granted: 1980-05-13
Abstract: Abstract of the Disclosure The reactlon of 1-(halo/cyano/sulfonyloxy)alkan-oyl-2-(dibenzoxazepine-10-carbonyl)hydrazines with an amine affords the corresponding 1-(substituted amino)alkan-oyl-2-(dibenzoxazepine-10-carbonyl)hydrazines which com-pounds are useful anti-inflammatory or anti-diarrheal agents.
Patent CA-1080685-A (CA)
Inventor: CARTER JAMES L
IPC: B01J23/94
Filed: 1977-01-18
Granted: 1980-07-01
Abstract: ABSTRACT OF DISCLOSURE            The invention relates to a process for activating catalysts, preferably a massive nickel catalyst, comprising copper, nickel and silica and being characterized as having a nickel surface area of from 50 to 100 m2/g and a total surface area of from 150 to 300 m2/g, comprising the steps of (1) reducing said composite at a temperature and for a time sufficient to yield a partially activated catalyst composite, (2) contacting said partially activated catalyst composite with a feed which undergoes exothermic exothermic reaction in the presence  of said partially activated catalyst composite which include a temperature greater than step (1), whereby the temperature at the catalyst surface exceeds the temperature of the catalyst bed and continuing said contacting for a time sufficient to convert said partially activated catalyst composite to a high activity catalyst composite.
Patent CA-1071624-A (CA)
Inventor: ROSS BARRY C
IPC: A61K31/7028
Filed: 1977-02-24
Granted: 1980-02-12
Abstract: ABSTRACT OF THE DISCLOSURE A process for the preparation of anti-bacterial amino-glycoside derivatives, particularly l-N-(2-hydroxy-.omega.-aminoalkyl) substituted aminoglycosides, which comprises reacting an intermediate aminoglycoside derivative having a free amino group with a novel cyclic urethane derivative of an .alpha.-hydroxy-.omega.-amino-aldehyde, reducing the resulting compound to form an intermediate compound having a cyclic urethane group and hydrolyzing the cyclic urethane group to form the desired aminoglycoside derivative.
Patent CA-1076650-A (CA)
Inventor: TAN YOICHI
IPC: H04L27/14
Filed: 1977-04-05
Granted: 1980-04-29
Abstract: Abstract of the Disclosure An FSK (Frequency Shift Keying) demodulator having an AFC (Auto-matic Frequency Control) circuit is disclosed.  The demodulator is used to demodulate an FSK-modulated signal that is transmitted with n transmitting frequencies made to correspond to n-level information signals where n is a positive integer equal to or greater than 2.  The demodulator includes a variable frequency oscillator the frequency of which is variable in response to a control signal.  The demodulator also includes a frequency converter circuit for converting the FSK-modulated signal into an intermediate frequency signal by means of an output of the oscillator.  A signal generator respon-sive to the output of the converter circuit generates the n-level information signals and the control signal, there being at least n frequency-stable points which correspond to the n transmitting frequencies.
Patent CA-1056608-A (CA)
Inventor: CARLSSON STIG
IPC: E02F5/10
Filed: 1977-05-02
Granted: 1979-06-19
Abstract: ABSTRACT OF THE DISCLOSURE         Laying tool for laying of submarine cable in a sea-bottom trench.  The tool consisting of a drag unit and a pulling tube joined by means of a cardanic suspension and to be drawn by a vessel may be used for the most variable sea and bottom conditions.  The cable is laid out from the vessel through the pulling tube, a channel in the drag unit, and, finally, into a sea-bottom trench turned up by a ploughing means on the drag unit.  This unit is constructed so that the cable is forced down onto the bottom of the trench even if the unit is not operating in a proper position due to a rough sea-bottom.          Moreover, the drag unit is constructed so that all material turned up from the sea-bottom is pushed aside from the trench and the ploughing means.  The laying tool may also be provided with floating tanks adjusted so that the drag unit without cable will float but with cable it will sink.  The tanks may be filled with both water and air to facilitate submergence and refloating of the drag unit.
Patent CA-1081059-A (CA)
Inventor: GIBSON JACK E
IPC: B29C41/08
Filed: 1977-06-14
Granted: 1980-07-08
Abstract: ABSTRACT OF THE DISCLOSURE           The interior of a pipe is coated with a uniform thick-ness of plastic.  A fluidized bed of heat-meltable plastic materi-51 in particular form is connected to the inlet end of the pipe, while the opposed end of the pipe is made attachable to a source of reduced pressure.  A source of compressible fluid is also con-nected to the inlet end of the pipe.            The pipe is preheated and then rotated axially while the compressible fluid flows therethrough.  THe compressible fluid flowing to the inlet is suddenly terminated while a flow from the fluidized bed is immediately established so that the vacuum at the outlet end of the pipe causes uninterrupted mass flow and pulls a finite pocket of the finely divided plastic into the pipe.  The flow of particular plastic material is terminated, while the flow of compressed gas is immediately re-established, thereby pushing the pocket of plastic material into and through the pipe.  Timing means associated with the flow from the fluidized bed enables the vacuum source to be removed before the pocket of material arrives at the outlet end of the pipe.            This sequence of manipulative steps applies a coating of plastic material on the interior surface of the spinning pipe. The spinning action, together with the elevated temperature of the pipe, enhances the uniformity of the deposited plastic material.
Patent CA-1128685-A (CA)
Inventor: ROTH MICHAEL
IPC: C04B41/49
Filed: 1977-06-27
Granted: 1982-07-27
Abstract: ABSTRACT OF THE DISCLOSURE            A composition and process-are provided for bonding inorganic materials.  The composition is a water-free composition comprising a bis(trialkoxysilyl)alkane and a hydrolysis catalyst.  The process includes contacting the inorganic materials with an alkoxy-containing silicon com-pound in which at least a portion of the alkoxy-containing silicon com-pound is a bis(trialkoxysilyl)alkane in the presence of a hydrolysis catalyst, and then allowing hydrolysis in the presence of water.  This process imparts hydrophobic properties to bonded inorganic materials, and also improves the strength of such bonded inorganic materials.
Patent CA-1093491-A (CA)
Inventor: MONTAGNA ANGELO A
IPC: B01J23/00
Filed: 1977-07-05
Granted: 1981-01-13
Abstract: A HYDROGENATION PROCESS EMPLOYING A ZINC            PROMOTED CATALYST            ABSTRACT OF THE DISCLOSURE         An improved hydrogenation process for the denitrification and desulfurization of hydrocarbons employing a catalyst consisting essentially of a Group VI-B metal, nickel and zinc composited with alumina.
Patent CA-1122609-A (CA)
Inventor: VAN DEN BRINK MARINUS J
IPC: C07C255/16
Filed: 1977-08-03
Granted: 1982-04-27
Abstract: A B S T R A C T   A process for the preparation of a cyclopropane carboxylic acid ester of the general formula:                      (I)   wherein R1, R2, R3, R4 and R5 each represents a substituted or unsubstituted hydrocarbyl group or a hydrogen atom, which comprises reacting: (a)  an aldehyde of the general formula:       R5 - C(O)H                    (II) wherein R  has the same meaning as in the general formula I, with (b)  a salt of hydrocyanic acid, and (c)  a 2-halocyclobutanone of the general formula:                                                 (III) wherein R1, R2, R3 and R4 have the same meaning as in the general formula I and Hal represents a halogen atom.
Patent CA-1116149-A (CA)
Title: Re-tightener with pyrotechnic propellant charge  for safety-belt automatic wind-up devices
Inventor: FOEHL ARTUR
Filed: 1977-09-16
Granted: 1982-01-12
Abstract: Abstract of the Disclosure A retightener for safety-belt automatic wind-up devices having an energy converter having a charge, which when activated in the case of danger, the explosive pressure of the fired charge acts on a retightening element which tightens the safety-belt around the body of the motor vehicle passenger.  The retightener of the invention has an intermediate liquid medium transmitting the explosive pressure of the charge arranged between the charge and the retightening element.
Patent CA-1114015-A (CA)
Inventor: VALI ENN
IPC: H03F3/30
Filed: 1977-11-21
Granted: 1981-12-08
Abstract: ABSTRACT OF THE DISCLOSURE This invention relates to the protection of power transistors in an H configuration power amplifier which drives a D.C. motor.  When the amplifier is switched off, it may be possible for the base terminals of the transistors to be turned "on" which results in the transistors conducting. If two series transistors conduct, the resulting short circuit may damage or destroy the transistors.  This invention provides an easy and economical apparatus for protecting the transistors in the power amplifier by grounding the base input terminals of the power transistors during all times when the transistors are switched "off".
Patent CA-1133634-A (CA)
Inventor: HALM HANS
IPC: B42F17/34
Filed: 1978-01-06
Granted: 1982-10-12
Abstract: ABSTRACT OF THE DISCLOSURE         The invention relates to a data register with a register card selection mechanism, whose selector keys connected with the swivel levers are arranged one behind the other and alongside one another in an opening of the housing in such a way that the width of each selector key corre-sponds to the width of the swivel levers, whilst the card restraining pins on each swivel lever are formed from U-shaped portions shaped onto the swivel lever end with a rod which engages from below in the register card opening, the drawer being open at the back and at both sides, whereby the two lateral drawer limiting walls are formed by two boundary walls shaped onto the inner wall surface of the housing cover and arranged on either side of the plate-shaped drawer base and whereby the swivel levers are guided on the end carrying the card restraining pin, whilst the drawer unlocking mech-anism comprises a U-shaped shackle directly responsible for the locking and unlocking of the drawer.
Patent CA-1111105-A (CA)
Title: Current stabilizer
Inventor: VAN DE PLASSCHE RUDY J
IPC: G05F3/26
Filed: 1978-01-24
Granted: 1981-10-20
Abstract: ABSTRACT :                     A current stabilising arrangement with a first and a second current circuit in which currents with a fixed ratio relative to each other are sustained. These currents respectively flow through a first semiconductor junction and a second semiconductor junction, a resistor being alternately connected in series with the first and second semiconductor junction. The currents flowing in the first and the second current circuit are interchanged in synchronism therewith.
Patent CA-1087513-A (CA)
Inventor: GERNHARDT PAUL
IPC: C10J3/20
Filed: 1978-02-28
Granted: 1980-10-14
Abstract: ABSTRACT OF THE DISCLOSURE           A gas generator in the form of a vertical shaft and adapted to operate under pressure and at high temperature.          The gas generator has gasification and after-gasification regions lined with cooling tubes.  Cooling tubes are situated adjacent an upper cooling region of the gas generator whereat walls of the gas generator include inlets for tangentially introducing a cooling gas into the gas generator, fuel jet nozzle means situated in the gas generator below the tangential cooling-gas inlets, whereby a hot stream of dust-laden primary gas rising from the gasification region is constricted  towards a longitudinal axis of a gasifier by a partial stream of cool-ing gas introduced through the fuel jet nozzles.
Patent CA-1106147-A (CA)
Inventor: ATWOOD GILBERT R
IPC: C01B17/60
Filed: 1978-03-08
Granted: 1981-08-04
Abstract: RECOVERING SULFUR FROM GAS STREAMS CONTAINING HYDROGEN SULFIDE                 ABSTRACT OF THE DISCLOSURE           .        Process for the recovery of sulfur from gas streams containing hydrogen sulfide comprising the steps of reacting a portion of the hydrogen sulfide with sulfur dioxide in a Claus reaction to form sulfur, removing the sulfur, inciner-ating the residual hydrogen sulfide in the resulting gas stream to sulfur dioxide, absorbing the sulfur dioxide in the incinerated gas stream in an aqueous absorbent solution, stripping the sulfur dioxide from the aqueous absorbent solution, recycling the stripped sulfur dioxide for reaction with succeeding portions of hydrogen sulfide in the incoming gas stream, re-contacting the stripped aqueous absorbent solution with succeeding portions of the incinerated gas stream to absorb additional sulfur dioxide, regenerating a portion of the aqueous absorbent solution to remove heat stable sulfur oxyanions therefrom by contacting said solution with an anion exchange resin and re-contacting the regenerated aqueous absorbent solution with said incinerated gas stream to absorb additional sulfur dioxide.     S P E C I F I C A T I O N
Patent CA-1098637-A (CA)
Inventor: TUNG LU H
IPC: C08F293/00
Filed: 1978-03-14
Granted: 1981-03-31
Abstract: ABSTRACT OF THE DISCLOSURE                  Block copolymers of AB or ABA configuration are prepared by anionically polymerizing one component, terminating the living polymer with sulfur or an episulfide and completing polymerization of the remaining block portion by free-radical polymerization.  By this process one can prepare block copolymers con-taining monomers which are generally considered unsuitable for anionic polymerization.     18,312-F     18,312-F
Patent CA-1101700-A (CA)
Inventor: SPERRY PHILIP R
IPC: C22C21/06
Filed: 1978-03-14
Granted: 1981-05-26
Abstract: ABSTRACT OF THE DISCLOSURE      Aluminum alloys exhibiting improved resistance weldability as well as excellent strength and formability characteristics are prepared which comprise 1.-5% magnesium. 0.3-1.0% lithium, up to 1.0% manganese, up to 0.3% titanium, up to 0.20% vanadium, and balance essentially aluminum.  The alloys of the present invention are particularly suited for automotive and like metal parts.