baber/WOPTO huggingface dataset:
Patent CA-1297899-C (CA)
Title: Carboalkoxylation of butadiene to form dialkyl adipate
Inventor: BRUNER HAROLD S JR
IPC: B01J31/02
Filed: 1987-06-23
Granted: 1992-03-24
Abstract: TITLE           Carboalkoxylation of Butadiene to Form Dialkyl Adipate Abstract Production of dialkyl adipate by reaction of butadiene, carbon dioxide, and a lower alkyl alcohol in the presence of a cobalt catalyst and a tertiary nitrogen base cocatalyst to form a liquid mixture containing alkyl 3-pentenoate, adding alkanoic acid to the mixture in an amount sufficient to keep the cobalt catalyst active, and then reacting the mixture to form dialkyl adipate.  The acid addition increases the rate of reaction relative to catalyst deactivation rate and reduces the consumption of the tertiary nitrogen base cocatalyst.
Patent CA-1276282-C (CA)
Title: Method and apparatus for determining flow resistance of fully assembled acoustic liners
Inventor: ARCAS NOE
IPC: G01N29/22
Filed: 1987-07-24
Granted: 1990-11-13
Abstract: ABSTRACT     Apparatus and method for determining the steady state flow resistance of face sheets on fully assembled acoustic duct liners.  Resistance is measured by subjecting the liner to a sinusoidal acoustic pressure field at the face sheet surface.  The pressure field is applied through a cylindrical waveguide and is measured by a pressure transducer flush mounted on the inside of the waveguide near the liner face.  A second pressure measurement, obtained by a similar transducer posi-tioned further from the face, is combined with the first measurement to calculate the acoustic resistance for the excit-ation frequency.  If the excitation frequency coincides with the resonant frequency of the liner configuration, then no significant pressure exists on the back surface of the liner face sheet.  For this condition the root mean square (rms) pressure measured at the face sheet is equated to the static pressure drop used to obtain the steady state flow resistance.          The rms velocity of the oscillating pressure wave is calculated from the ratio of rms pressure to resistance.  A repetition of the procedure for several magnitudes of dynamic pressure permits the development of a curve which describes the non-linear characteristics of resistance with changes in velocity. this curve may be equated to a similar curve obtained using steady state flow resistance measurements of the liner in its partially assembled state without a backing surface.
Patent CA-1289742-C (CA)
Inventor: SOININEN MAURI
IPC: F26B3/34
Filed: 1987-08-11
Granted: 1991-10-01
Abstract: (57) ABSTRACT OF THE DISCLOSURE            This publication describes a method and an apparatus for reducing moisture differentials of a moving web (1), for instance, a paper web, containing longitudinal wet streaks, by applying high-frequency electromagnetic energy to bar-formed electrodes (2), which are located close to the surface of the web (1).  In accordance with the invention, the longitudinal axes of the electrodes (2) are aligned approximately parallel to the machine direction of the web (1) and the electrodes (2) are located over each wet streak of the web (1).  The apparatus in accordance with the invention comprises a beam (3) extending in the cross direction essentially over the web (1), with each electrode fitted to the beam so as to align the longitudinal axis of the electrode in the home position approximately parallel to the machine direction of the web (1) and provided with a means of transferring each electrode in the aforementioned cross direction onto an assigned wet streak in the web (1). The invention provides an economical and effective solution for reducing moisture differentials in the web (1). (Figure 3)
Patent CA-1277201-C (CA)
Title: Frangible coupling for barrel sections of a fire hydrant
Inventor: DAGHE JOSEPH L
IPC: F16L35/00
Filed: 1987-09-25
Granted: 1990-12-04
Abstract: IMPROVED FRANGIBLE COUPLING FOR BARREL SECTIONS OF A FIRE HYDRANT              ABSTRACT OF THE DISCLOSURE     A flangible ring, for securing together the adjacent flanged ends of the upper and lower barrel sections of a fire hydrant, has two weakening grooves therein instead of the usual one.  One of the grooves is conventional and located in one face of the ring just inside the circular array of bolt holes in the ring.  The other weakening groove is formed in the other face of the ring and is of greater mean diameter but of smaller, width and depth than the first groove.  Preferably the sides of the other groove are straight in radial section, disposed at an angle of the order of 60° to the face of the ring and an extension of the inner side thereof intersects the intersection of the bottom of the larger groove with a side thereof.
Patent CA-1281685-C (CA)
Title: Lift truck steering apparatus
Inventor: MCCORMICK EDWARD J
IPC: B60K17/30
Filed: 1987-09-30
Granted: 1991-03-19
Abstract: LIFT TRUCK STEERING APPARATUS                     ABSTRACT OF THE DISCLOSURE:              In a lift truck having one steerable powered drive wheel assembly and a steerable idler wheel assembly interconnected by a pair of links and a crank, steering is accomplished by means which apply torque directly to the drive wheel assembly. The steering rotation of the drive wheel assembly rotates the idler wheel assembly, so that forces transmitted through the links and the crank to steer the idler wheel assembly are independent of drive wheel loading, and less motive force is required to steer the truck at large cramp angles.
Patent CA-1281437-C (CA)
Inventor: FLAUM CHARLES
IPC: G01V5/10
Filed: 1987-10-05
Granted: 1991-03-12
Abstract: ABSTRACT                 METHOD FOR DETERMINING FORMATION CHARACTERISTICS WITH ENHANCED VERTICAL RESOLUTION     A method  for  determining  a characteristic  of  a subsurface geological formation enhanced the  vertical resolution of dual-detector measurements by utilizing a continuous calibration factor which is obtained from an environmentally compensated characteristic derived from at least two resolution-matched sensor signals, and from a    resolution-matched    sensor   signal    from   the near-detector of the tool.
Patent CA-1277479-C (CA)
Title: Process for purifying alumina
Inventor: SPITZER DONALD P
IPC: C01F7/47
Filed: 1987-10-07
Granted: 1990-12-11
Abstract: PROCESS FOR PURIFYING ALUMINA                ABSTRACT OF THE DISCLOSURE    The iron content of Bayer process streams is reduced by contacting said stream with a tertiary hydroxyl-con-taining polyamine.
Patent CA-1279456-C (CA)
Title: Corrugated mold block
Inventor: DICKHUT HEINRICH
IPC: B29C51/36
Filed: 1987-11-04
Granted: 1991-01-29
Abstract: Corrugated Mold Block Abstract A corrugated mold block for a vacuum mold machine is provided with a face arcuate about a longitudinal axis and corrugated in the longitudinal direction with alternat-ing grooves and lands, said face being formed of sheet met-al.  A housing is provided about the back of the face and adapted for carriage about an endless path, and reinforcing members are provided which are secured to the face and hous-ing and extend therebetween to maintain the desired shape of the face.  Openings extend through the grooves of the face to the back thereof and communicate with vacuum passageways formed by a plurality of arcuate channel members secured to the back of each of the face grooves and communicating with a vacuum port through the housing.  The housing further de-fines a cooling passage therethrough in communication with input and output cooling ports through the housing.  The reinforcing members  are disposed substantially radial to the arc of the face and include finger portions extending into the lands thereof and openings therethrough which form a part of the cooling passage.  A sealant is provided on one side of the mold block and adapted to seal against an adja-cent mold block during molding.
Patent CA-1323854-C (CA)
Title: Process for the recycling of electrical batteries, assembled printed circuit boards and electronic components
Inventor: HANULIK JOZEF
IPC: H01M6/52
Filed: 1987-12-11
Granted: 1993-11-02
Abstract: ABSTRACT OF THE DISCLOSURE    For the recycling of electrical batteries of any chemical composition, of assembled printed circuit boards and electronic components, and in particular of unsorted mixtures of these starting materials, a pyrolysis of the starting is carried out at a temperature between 450 and 650°C, then an electrolysis of the pyrolysis slag is carried out, wherein, according to the invention, the electrolyte comprises borofluoric acid and salts thereof, and, subsequently, a separation of the electrolysis products and removal of the products accumulating at the electrodes is carried out.  An initial sorting of starting materials is unnecessary, several metals, in particular mercury, are recycled for reutilization and chemical reagents are recycled and reused in the process.
Patent CA-1296720-C (CA)
Title: Process for the post-hydrogenation of sucrose polyesters
Inventor: MCCOY STEPHEN A
IPC: C07H13/06
Filed: 1987-12-17
Granted: 1992-03-03
Abstract: PROCESS FOR THE POST-HYDROGENATION        OF SUCROSE POLYESTERS                 Abstract of the Disclosure The invention is a process for post-hydrogenating sucrose polyesters with hydrogen gas in the presence of a catalytically effective amount of hydrogenation catalyst, at a temperature of from about 250°F (121°C) to about 450°F          (232°C), Post-hydrogenation can be used to make sucrose polyesters that are different from those made by esterification. Preferably, the hydrogen pressure is at least about 20 psig. Increased hydrogen pressure overcomes steric hindrance of certain kinds of sucrose polyester molecules, allowing more complete hydrogenation of the fatty acids.
Patent CA-1321602-C (CA)
Title: N,n-bis(hydroxyethyl)hydroxylamine ester stabilizers
Inventor: RAVICHANDRAN RAMANATHAN
IPC: C07C239/00
Filed: 1987-12-22
Granted: 1993-08-24
Abstract: 316249/=/CGC 1243 N,N-Bis(hydroxyethyl)hydroxylamine ester stabilizers Abstract Compounds of formula I                   (I) wherein each R is alkyl of 1 to 36 carbon atoms, cycloalkyl of 5 to 12 carbon atoms, phenyl, phenyl substituted by alkyl of 1 to 36 carbon atoms, aralkyl of 7 to 9 carbon atoms, said aralkyl substi-tuted by alkyl of l to 36 carbon atoms, or is              (II) wherein R1 and R2 are independently alkyl of 1 to 18 carbon atoms, cycloalkyl of 5 to 12 carbon atoms, phenyl or aralkyl of 7 to 9 carbon atoms, and n is 0, 1 or 2; and X is hydroxyl or -CH2CH(R4)?-OR3 wherein R3 is alkyl of 1 to 36 carbon atoms, cycloalkyl of 5 to 12 carbon atoms, phenyl, phenyl substituted by alkyl of 1 to 36 carbon atoms, aralkyl of 7 to 9 carbon atoms or said aralkyl substituted by alkyl of 1 to 36 carbon atoms, and R4 is hydrogen or methyl, are effective in stabilizing various organic materials against oxidative, thermal and actinic degradation, said derivatives being particularly effective as color improvers and process stabilizers in synthetic polymers containing phenolic antioxidants and/or metal salts of fatty acids.
Patent CA-1308566-C (CA)
Title: Method and composition for fertilizing soils to increase the amountof available phosphorus
Inventor: KUCEY REGINALD M N
IPC: A01N63/04
Filed: 1987-12-24
Granted: 1992-10-13
Abstract: Abstract:   The invention provides a method and composition for fertilizing soils to increase the amounts of phosphorus available for uptake by plants.  The invention involves introducing an inoculum of the fungus Penicillium bilaji into (or onto) the soil in combination with a manufactured phosphorus fertilizer.  The fungus has the effect of increasing the amount of phosphorus available for uptake from the manufactured fertilizer so that less of the fertilizer is required.  The fungus is applied to the soil separately from the fertilizer but can be added in prox-imity to, or in combination with, plant seeds.  The inven-tion can be used to increase the phosphorus uptake of plants which will increase growth rates and yields of plants, especially crop plants grown on nutrient-deficient soils.
Patent CA-1312593-C (CA)
Title: Active material produced from metal oxide/hydroxide particles and phosphate esters
Inventor: WIESERMAN LARRY F
IPC: B01J20/32
Filed: 1987-12-29
Granted: 1993-01-12
Abstract: Abstract of the Disclosure An active material is disclosed comprising metal oxide/ hydroxide particles having chemically bonded to reactive sites on a surface thereof, a monolayer of a phosphorous-containing organic material comprised of a phosphorous-containing group and a carbon-containing group.  The bond to the metal oxide/hydroxide particle surface is formed by reaction of the phosphorous-containing group with the metal oxide/hydroxide particle surface, so that the carbon-containing group of the material is oriented away from the metal oxide/hydroxide surface.
Patent CA-1293318-C (CA)
Title: Ring laser gyroscope cavity length control apparatus and method
Inventor: HENDOW SAMI T
IPC: G01C19/66
Filed: 1988-01-21
Granted: 1991-12-17
Abstract: RING LASER GYROSCOPE CAVITY LENGTH   CONTROL APPARATUS AND METHOD     ABSTRACT OF THE DISCLOSURE An apparatus and method for path length control for a laser gyro using two external gain cells and the shifted gain spectra of two neon isotopes. The laser cavity is stabilized by detecting the difference in the amplification ratebetween the two gain cells that are traversed by two rays. Absorption cells may be used to replace the gain cells.
Patent CA-1284790-C (CA)
Title: Dosing system
Inventor: DIVALL JOHN E
IPC: B65B3/32
Filed: 1988-02-23
Granted: 1991-06-11
Abstract: A DOSING SYSTEM                  ABSTRACT OF THE DISCLOSURE A dosing system for filling containers with a particulate/liquid mixture includes three piston-and-cylinder devices, of which a first device delivers the mixture-downwards to containers advanced beneath it, a second device feeds a thick particulate/liquid mixture via a conduit to the first device, and the third device feeds a thin liquid via a conduit to the first device. A liquid supply port is disposed peripherally in the cylinder of the first device and is swept by the piston thereof, and a conduit in continuous communication with the port extends through the piston to a lower axial end of the piston.
Patent CA-1319100-C (CA)
Inventor: RALEIGH JAMES A
IPC: A61P37/04
Filed: 1988-02-25
Granted: 1993-06-15
Abstract: ABSTRACT OF THE DISCLOSURE      A process for preparing an immunogenic conjugate of a nitroaromatic compound and a carrier comprises colavently bonding the nitroaromatic compound to the carrier in an essentially oxygen-free atmosphere and isolating the conjugate from the reaction mixture.  The conjugate may be used to raise antibodies specific to the nitroaromatic hapten.  The antibodies may be used to determine the presence of hypoxic tissue in living matter by treating the living matter with a nitroaromatic compound and subsequently testing suspected tissue to determine if there is binding of the antibody to tissue.  By use of appropriate markers, bound antibodies can be determined to indicate the presence of hypoxic tissue due to the unique reaction of nitroaromatic compounds with hypoxic tissue.
Patent CA-1299845-C (CA)
Title: Gas generator/indicator unit adapted for use in an upright position
Inventor: BELT WILLIAM E
IPC: B01J7/02
Filed: 1988-03-07
Granted: 1992-05-05
Abstract: GAS GENERATOR/INDICATOR UNIT ADAPTED FOR USE IN AN UPRIGHT POSITION                 Abstract of the Disclosure A unit in the form of a bubble pack for creating an anaerobic gaseous atmosphere in an upright container and for indicating the presence of the anaerobic atmosphere in the container.  One bubble of the pack houses acid-containing ampoules while another bubble houses a tablet which generates hydrogen and carbon dioxide when activated by squeezing the first bubble to crush the ampoules and release the acid.  Gas flows from the second bubble, through the first bubble and then into the container and enters still another bubble which houses an ampoule containing a redox color indicating liquid.  When the latter ampoule is crushed, the liquid moistens an absorbent pad which changes colors as the atmosphere of the container changes from aerobic to anaerobic.  The pack also carries catalyst pellets to promote a reaction between the generated hydrogen and the oxygen in the container.
Patent CA-1331868-C (CA)
Title: Process for depositing a superconducting thin film
Inventor: FUJITA NOBUHIKO
IPC: C23C14/40
Filed: 1988-03-14
Granted: 1994-09-06
Abstract: ABSTRACT OF THE DISCLOSURE    A process for producing a superconducting thin film, in which a target made of a compound oxide containing Ba; one element M selected from the group consisting of Y, La, Gd, Ho, Er and Yb; and Cu is used for carrying out physical vapor deposition to produce a thin film of perovskite type oxide or quasi-perovskite type oxide.   The target may be made of preliminary sintered material which is obtained by preliminary sintering power mixture including oxides, carbonates, nitrates or sulfates of Ba; one element M selected from the group consisting of Y, La, Gd, Ho, Er and Yb; and Cu, or of finally sintered material which is obtained by final sintering of preliminary sintered material at a temperature ranging from 700 to 1,500 °C.  The physical vapor deposition is performed by high-frequency  sputtering technique.    The thin  film obtained may be further heat-treated.
Patent CA-1306335-C (CA)
Title: Platform system
Inventor: PARSONS PHILIP L
IPC: E04H3/24
Filed: 1988-03-18
Granted: 1992-08-18
Abstract: ABSTRACT            A platform system, in particular for providing staging, which consists of a number of platform units each of which comprises a flat platform having on the underside thereof hollow posts of square cross-section for receiving tubular legs of circular cross-section for supporting the platform.  The legs of the respective platform units may be different heights to give a variable height system.  Also the legs may be suitably bent to provide a raked platform.
Patent CA-1292334-C (CA)
Title: Double-buffered time division switching system
Inventor: KOBAYASHI TSUNEO
IPC: H04Q11/08
Filed: 1988-04-28
Granted: 1991-11-19
Abstract: Abstract of the Disclosure There is described an improved double-buffered time division switching system comprising first and second k-bit x N-multiplex memory switches, into whose N time slots per  frame are sequantially inputted time division multiplexed data and either of which is placed in a write state.  A control memory is provided for storing the read sequence of data in the first and second memory switches. First and second multi-element information memories store multi-element information which indicates, corresponding to a plurality of input time slots constituting a series of data in the frame, that these time slots are multi-element data.  A first controller checks the first multi-element information memory in synchronism with the writing of input time slots into the memory switches and, if the multi-element information is stored corresponding to the time slots into which to write, alternately switches the data writing of the time slots between the first and second memory switches on a frame-by-frame basis.   A second controller checks the second multi-element information memory in synchronism with the reading into output time slots from the memory switches and,  if the multi-element information is stored corresponding to the time slots to output, outputs into the output time slots alternately data read out of the first memory switch and one read out from the second memory switch on a frame-by-frame basis.
Patent CA-1289825-C (CA)
Title: Method of and apparatus for controlling valve operation in an internal combustion engine
Inventor: FUJIYOSHI YOSHIHIRO
IPC: F01L1/34
Filed: 1988-11-18
Granted: 1991-10-01
Abstract: ABSTRACT OF THE DISCLOSURE           A method and apparatus for controlling valve operation in an internal combustion engine having a crankshaft during with a cam for opening and closing an intake or exhaust valve which is spring-biased in a closing direction.  The method comprises the steps of varying the angular phase of the crankshaft and the camshaft to control the timing of the opening of the valve and releasing the force applied by the cam to open the valve while it is being opened to control the timing of the closing of the intake or exhaust valve.  The apparatus includes a phase control mechanism disposed between the crankshaft and the camshaft and a lift control mechanism disposed between the cam and the intake or exhaust valve.  Both mechanisms are hydraulically operated and controlled in response to engine operating conditions.
Patent CA-1316885-C (CA)
Inventor: MARTIN GORDON S
IPC: B65B69/00
Filed: 1988-12-02
Granted: 1993-04-27
Abstract: ABSTRACT OF THE DISCLOSURE METHOD AND APPARATUS FOR DEBANDING MAIL BUNDLES          Rubber bands are removed from a bundle of envelopes by clamping a portion of the bundle to hold the bundle in a fixed position, opening a gap between two envelopes of the bundle, and inserting a pendulum-like band engaging blade into the gap.  By swinging and retracting the blade, longitudinal rubber bands are pulled off the bundle.  And, by pulling the bundle from the reinserted blade, lateral rubber bands are stripped off the bundle.
Patent CA-1325016-C (CA)
Title: Process for the recovery of rhodium from aqueous solutions containing rhodium complexes
Inventor: DIEKHAUS GERHARD
IPC: C01G55/00
Filed: 1988-12-19
Granted: 1993-12-07
Abstract: Abstract of the Disclosure A process for the recovery of rhodium from aqueous solutions of complexes thereof wherein the solutions are treated with oxygen in the presence of a water salt of a carboxylic acid and, in a second stage, further treated with a hypochlorite, whereby oil soluble rhodium compounds are formed which can readily be separated from the aqueous solution.
Patent CA-1326127-C (CA)
Inventor: THOMANN ROBERT
IPC: F02K9/34
Filed: 1988-12-28
Granted: 1994-01-18
Abstract: ABSTRACT OF THE DISCLOSURE      A method of making a gas generator such as a rocket motor.   A case  is filament wound about a grain which includes solid propellant material which has a modulus of rigidity which is equal to at least about 2000 psi, more preferably at least about 4000 psi.  Empty space inwardly of the case envelope is filled with a removable structure having a modulus of rigidity which is equal to at least about 2000 psi, more preferably at least about 4000 psi, to provide support for filament winding of the case.   The higher modulus of rigidity is provided to prevent sagging or distortion of the grain during filament winding of the case thereabout.  After the case has been wound onto the grain and cured, the removable material is removed there-from.