baber/WOPTO huggingface dataset:
Patent CA-1191062-A (CA)
Inventor: REYNOLDS ALVIN E
IPC: A61B3/107
Filed: 1982-12-30
Granted: 1985-07-30
Abstract: Abstract of the Disclosure A quantitative corneascope for use with a surgical micro-scope in performing corrective techniques on the eye includes a pair of hinged image projection housing members movably mounted on each side of a surgical microscope and a light and image source for reflecting partial segments of placido rings (mires) from the cor-neal surface of the eye.  The microscope utilizes a beam splitter to provide multiple viewing by an operating doctor, an assistant and at television camera.  The camera permits viewing of the mires as reflected from the eye, on a monitor.  The monitor is provided with apparatus for generating cursor lines on the viewing surface, which cursor lines represent predetermined radii of curvature corresponding to the range of spherical eye shapes.  The cursor lines may be adjusted to discrete values in this range of radii of curvature which in turn changes the spacing between the straight lines of the cursor display.  The cursor lines may also be adjusted along the X-Y coordinates of the viewing surface.  The use of this instrument involves placing the microscope and surgical corneascope mounted thereon over the patient's eye at a fixed distance.  A focus mark is displayed on the viewing surface to accommodate this adjustment.  In one type of operation, the mires are reflected from the eye and displayed on the viewing surface.  The cursor lines are brought into coincidence with the mires to provide an image of the preoperative condition of the eye.  This information relating to the preoperative eye condition is stored for later use.
Patent CA-1183048-A (CA)
Inventor: MCKAY MICHAEL L
IPC: F02M67/00
Filed: 1982-12-30
Granted: 1985-02-26
Abstract: ABSTRACT       Apparatus for delivering metered quantities of fuel, comprising a fuel chamber and a gas chamber formed in a rigid body, fuel inlet and outlet ports in the fuel chamber and a fuel discharge port, a rigid member slidably supported in the body and having a gas passage therethrough communicating the fuel and gas chambers, a valve in said passage openable in response to a predetermined pressure in the gas chamber to admit the discharge port, the extent of projection of the rigid member into the fuel chamber being adjustable to vary the quantity of fuel displaceable therefrom by the gas, the rigid member extends through a further chamber interposed between the fuel and gas chambers to collect leakage from said fuel and gas chambers.
Patent CA-1189052-A (CA)
Inventor: TERNAN MARTEN
IPC: B01J37/06
Filed: 1983-01-18
Granted: 1985-06-18
Abstract: Abstract:    A method is described for producing a catalyst or catalyst support having both high surface area, e.g. greater than 150 m2/g, and large pore sizes, e.g. greater than 1.0 ml/g of macropores having diameters between 1 and 50 nm.  According to the method, a metal oxide is mixed with water and an acid to form a dilute metal gel, preferably containing at least 70% by weight water and consisting of a loose three dimensional network of oxide containing the water evenly dispersed throughout. This gel is slowly dried at a temperature below the boil-ing point of water whereby a substantial proportion of the water is removed from the interior of the pore structure, leaving the three dimensional network intact.  Thereafter, the dried product is calcined to form a novel catalyst or catalyst support having both high surface area and large pore sizes.  The novel catalyst is useful as a component of a catalytic cracking catalyst or a hydrocracking catalyst.
Patent CA-1187674-A (CA)
Inventor: FISHER JOHN R JR
IPC: H05K3/34
Filed: 1983-02-28
Granted: 1985-05-28
Abstract: Abstract The attachment of leadless chip carriers to printed wiring boards by means of soldering techniques must provide for a spacing between the chip carrier and the board.  Such spacing is required for cleaning the area under the chip carrier, protecting the underlying circuitry, and accounting for stresses which may develop due to thermal mismatch between the chip carrier and the board, and to board flexure.  Herein disclosed is a lead for semiconductor chip carriers comprising an elongated body of high melting point electrically conductive material, e.g., solder material.  Also disclosed is a method for casting such a solder lead, and a method for attaching a plurality of cast solder leads to a leadless chip carrier.
Patent CA-1213211-A (CA)
Inventor: GRUPPING ARNOLD W J
IPC: E21B43/00
Filed: 1983-03-10
Granted: 1986-10-28
Abstract: ABSTRACT OF THE DISCLOSURE           A method for the underground gasification of coal or browncoal, using two boreholes extending through a coal layer with the slope of said layer, for supplying oxygen to a combustion and gasification front in said layer and discharging combustion gases respectively. a filler material being intermittently supplied through one of said boreholes for filling the cavity produced by burning away the coal layer.         According to the invention, said filling is started at a moment before the combustion front has reached the discharge borehole, and in partic-ular before the overlaying formations will collapse to such a degree that an inadmissible subsidence at the ground level would develop.         Thereafter the combustion and gasification is restarted in the same or the opposite sense as may be required for adjusting the orientation of the gasification front in the desired direction.
Patent CA-1205021-A (CA)
Inventor: WOLF NICHOLAS O
IPC: C10G33/02
Filed: 1983-03-18
Granted: 1986-05-27
Abstract: USE OF MICROWAVE RADIATION IN SEPARATING EMULSIONS AND DISPERSIONS OF HYDROCARBONS AND WATER               Abstract of the Disclosure Oil and water emulsions can be more rapidly separated when exposed to electromagnetic radiation in the range of from 1 to 300 millimeters, commonly called microwaves.  The microwave treatment can be in conjunction with other separating devices such as skimmers, gun barrel treaters, heater treaters, and the like.
Patent CA-1203360-A (CA)
Inventor: LEVY STANLEY B
IPC: B29L7/00
Filed: 1983-04-05
Granted: 1986-04-22
Abstract: TITLE            PERFLUOROCARBON COPOLYMER FILMS               ABSTRACT OF THE INVENTION        A perfluorocarbon copolymer film which, upon heat shrinking, does not expand in the direction perpendicular to stretching.
Patent CA-1238763-A (CA)
Inventor: WAGSTAFF FRANK E
IPC: B22D11/07
Filed: 1983-04-19
Granted: 1988-07-05
Abstract: DIRECT CHILL METAL CASTING APPARATUS AND TECHNIQUE        ABSTRACT OF THE DISCLOSURE       In the direct chill casting of a metal, a mass of the molten metal is introduced into the top of an open bottomed mold cavity having a support telescoped therein, the molten metal mass is chilled, and the mold and support are reciprocated in relation to one another axially of the cavity to form the chilled mass into an elongated body of the metal.  According to the invention, a stream of pressurized gas is delivered to a point outside of the cavity, the gas is discharged into the cavity at a point on the periphery thereof, and means are interposed between the point of delivery and the point of dishcarge, externally of the cavity, to convert the stream of gas into an annulus of fluid that extends about the metallic mass at the periphery of the cavity.
Patent CA-1200502-A (CA)
Inventor: TRIGGER DAVID J
IPC: A61K33/00
Filed: 1983-04-20
Granted: 1986-02-11
Abstract: ABSTRACT          SUSTAINED RELEASE LITHIUM-CONTAINING TABLETS               AND METHOD FOR THEIR MANUFACTURE     The release pattern of sustained release lithium carbonate tablets is improved by using a particular form of lithium carbonate material.  This should have acicular crystals with a substantially monomodal particle size distribution in which the curve showing volume percentages of particles of different sizes shows a peak at a particle diameter of between 10 and 25 µm.          Moreover not more than 20% by volume of the material should have a particle diameter above 30 µm.  A pre-ferred sustained release agent is a mixture of glyceryl mono- di- and tri-esters of straight chain saturated fatty acids.      The tablets may be made by a moist granulation technique, followed by screening to ensure a granulate of appropriate grain sizes, after which the granulate is compacted into tablets.     Fig.  4.
Patent CA-1175507-A (CA)
Inventor: TSANG GORDON C K P O BOX TSIMS
IPC: H03L7/06
Filed: 1983-05-30
Granted: 1984-10-02
Abstract: FREQUENCY GUIDED PHASE LOCK  LOOP     ABSTRACT OF THE DISCLOSURE      A phase locked loop with a digital frequency comparator aided is applied to achieve a low noise, insensitive to harmonic frequency and fast acquisition phase locking.  The circuitry mainly includes a frequency rate monitor, a digital frequency comparator, a conventional phase detector, a voltage summing device and a voltage controlled oscillator.  The frequency rate monitor measures input's signal change o frequency and provides a signal indicating a change of frequency existing certain threshold.  The digital frequency comparator functions to acquire a voltage output which represents the approximate frequency input.  At steady state, the phase locked loop is permitted to function within a frequency range.  If there is any major change of frequency, the digital frequency comparator will be activated to generate a new compensation signal again.  As a result, the phase locked loop is always guided to function within a frequency range and has the minimum static phase error and lower leakage noise produced compared with other loops consisting of equal loop gain.
Patent CA-1203849-A (CA)
Inventor: NAMIKI JUNJI
IPC: H04B1/12
Filed: 1983-07-13
Granted: 1986-04-29
Abstract: ABSTRACT An interference cancellation type space diversity system transmits digital microwaves in a sure and stable manner.  Signals coming in through two spaced antennas are combined together into a single input signal and the composite signal is processed by a demodulator into a baseband signal which is identical with a transmitted signal.  The demodulated baseband signal is processed by a frequency/amplitude characteristic detector network, which comprises a correlation circuit and an identifica-tion circuit, thereby controlling output phases of the antennas.
Patent CA-1203555-A (CA)
Inventor: SYME NEIL R
IPC: B63B27/16
Filed: 1983-09-13
Granted: 1986-04-22
Abstract: ABSTRACT OF THE DISCLOSURE           A log lift to reciprocate between a load position and an unload position.  The lift has a platform to receive logs.  The platform is pivotable about a pivot axis and has an outer edge remote from the pivot axis and an inner edge closer to the pivot axis than the outer edge.  There is a fixed, arcuate surface adjacent the inner edge of the plat-form to keep logs on the platform as the platform pivots.          The log lift is of substantially simple construction than prior art devices, which generally use a carriage on a track.
Patent CA-1198311-A (CA)
Inventor: PRINCE JACK A
IPC: A22C17/04
Filed: 1983-09-29
Granted: 1985-12-24
Abstract: ABSTRACT OF THE DISCLOSURE A deboning apparatus having an internal seal for the end of the auger comprising a circular flange having slots therein for directing fluids away from the seal.  The end of the auger is supported in a bearing assembly held in place by a cap which is bolted to a flange on the auger housing and to spaced, opposed columns.  There is also an extra flight on the  opposite end of the auger near the exit end for the bone and the end of each flight has a square tip.
Patent CA-1219861-A (CA)
Inventor: MONGELLI NICOLA
IPC: C07C69/732
Filed: 1983-09-30
Granted: 1987-03-31
Abstract: ABSTRACT OF THE DISCLOSURE The invention relates to 15-cycloaliphatic derivatives of 13,14-di-dehydro carboprostacyclins of formula (I)                 (I) wherein R is hydrogen or a C1-C6 alkyl group optionally substituted by a group    wherein each of R3 and R4 is, independently, hydrogen or C1-C6 alkyl, or R3 and R4, taken together with the nitrogen atom to which they are linked, form a pentatomic or hexatomic heteromonocyclic ring optionally containing a further heteroatom chosen from O and S; n is zero or an integer of 1 to 5; one of R1 and R2 is hydrogen or C1-C6 alkyl and the other is hydroxy; and B repre-sents:  a) a C4-C7 monocycloaliphatic group either unsubstituted or substituted by one or more substituents chosen from C1-C6 alkyl, C2-C6 alkenyl and C1-C6 alkylidene; b) norbornyl; or c) adamantyl, and the pharmaceutically or veterin-arily acceptable salts of the compounds of formula (1).  The invention also re-lates to pharmaceutically or veterinarily acceptable salts of compounds of for-mula I.  The compounds of formula (I) show high platelet antiaggregating and disaggregating activity in that they strongly inhibit, prevent and reverse blood platelet aggregation.  The compounds are therefore useful to inhibit platelet aggregation, to decrease adhesions, to prevent clot formation and to dissolve recently-formed clots.  The platelet anti-aggregating activity is also associat-ed with a relaxation of the coronary arteries, so the compounds can be useful in preventing and treating myocardial infarctions and, in general, in treating or preventing thromboses, in treating conditions like atherosclerosis,  arterio-sclerosis and, more generally, hyperlipidemia.  The compounds also exhibit a vasodilatory, i.e. hypotensive, effect, so they may be useful for treating syndromes caused by arterial hypertension.  They may also be used for treating obstructive pulmonary diseases such as, e.g. bronchial asthma.  Further, they display antiulcerogenic and antisecretory activity.
Patent CA-1251068-A (CA)
Inventor: SHAW HERBERT J
IPC: G01C19/64
Filed: 1983-10-31
Granted: 1989-03-14
Abstract: INTERFEROMETER WITH MULTIMODE SOURCE              FOR KERR EFFECT COMPENSATION   Abstract of the Disclosure A  fiber  optic  interferometer  provides  Kerr-effect compensation by using a multimode source (10) to provide counter-propagating waves in a loop (14) of fiber optic material  to reduce  the  difference between  the average intensity weighted phase shifts of the waves after they have traversed the fiber loop (14).
Patent CA-1221534-A (CA)
Inventor: MUELLNER PAUL
IPC: F27D17/00
Filed: 1983-11-09
Granted: 1987-05-12
Abstract: ABSTRACT OF THE DISCLOSURE:            To recover the sensible heat of slag the slag is allowed to solidify on the surface of a hollow cooling body pro-vided with a liquid internal cooling and is indirectly cooled by the liquid internal cooling. The liquid cooling medium of the liquid internal cooling is guided in a ther-modynamic cyclic process. In order to ensure as completely a recovery of the sensible heat of the slag as possible and a high percentage of glassy portions of the slag as well as a good grindability of the slag, the liquid slag on the surface of the cooling body is intensively cooled indirectly by the liquid cooling medium to a temperature of closely below the solidification temperature in a first cooling step. The solidified slag separated from the sur-face of the cooling body is then directly cooled by a gas flow in a second cooling step. The heated gas flow also is guided in a thermodynamic cyclic process.
Patent CA-1215823-A (CA)
Inventor: FIOCCO ROBERT J
IPC: B01D11/04
Filed: 1983-12-14
Granted: 1986-12-30
Abstract: ABSTRACT OF THE DISCLOSURE   An improved cascade weir type extraction zone is described in which at least one of the weir means is disposed above the associated tray.  This improved extraction zone is of particular utility in lube oil processing operations.
Patent CA-1214012-A (CA)
Inventor: YANG WEI-YEIH W
IPC: C08G69/18
Filed: 1984-01-09
Granted: 1986-11-18
Abstract: ABSTRACT OF THE DISCLOSURE This invention relates to reaction injection molding of a lactam composition containing a catalyst and a promoter agent that is a combination of a first promoter that imparts a short pot life and a short mold time and a second promoter that imparts a long pot life and a long mold time or a catalyst quencher, which attenuate the action of the first promoter in order to provide a molding composition having a long pot life and a short mold time.  The use of the promoter agent does away with the need to mix a separate monomer stream containing catalyst with another monomer stream containing promoter and, therefore, does not require high speed impinging mixing heads which limit the type of additives, especially fillers, that can be admixed.
Patent CA-1206043-A (CA)
Inventor: LEFEVER JAMES C
IPC: G01P1/11
Filed: 1984-02-20
Granted: 1986-06-17
Abstract: ABSTRACT OF THE DISCLOSURE          A measuring apparatus in the form of a pressure gauge includes a pointer movable over a dial.  An adjustable set point forms part of an arm which can move around the dial and carry with it a plastics housing in which are mounted an infra-red emitting diode and a silicon photodarlington transistor. The pointer has an end portion which reflects the infra-red radiation from the diode to the transistor when the pointer is in alignment with the set point.  The set point is movable around the dial by means of a friction roller which engages the periphery of an annular disc attached to the arm.
Patent CA-1225228-A (CA)
Inventor: ALLEN GORDON L
IPC: B22D18/02
Filed: 1984-03-22
Granted: 1987-08-11
Abstract: ABSTRACT OF THE DISCLOSURE         IMPROVEMENTS IN OR RELATING TO THE SQUEEZE               CASTING OF ARTICLES     A  squeeze  casting press has a movable top  die  part (11)  and  movable side die parts (13). When these parts are in a die-forming position, the side die parts  (13) are locked against movement by  respective locking wedges (25) to prevent these die parts separating  under the squeeze casting pressure.   The provision of movable die side parts allows easy access to the cast article (which may be a piston for  an engine or a compressor).  It also allows easy location in the die of reinforcements or inserts to  be  cast into the article.
Patent CA-1232878-A (CA)
Inventor: THADEN THERON J
IPC: B65D57/00
Filed: 1984-04-18
Granted: 1988-02-16
Abstract: Abstract of the Disclosure TIRE PACKAGING      There is disclosed a plastic bead protector and a method of packaging large tires having bead portions that are susceptible to damage by lifting hooks or fork trucks during shipment.  The bead protectors are slideably inserted inside of the bead portions of a tire and are retained in position by a plurality of elastic tension members.
Patent CA-1258749-A (CA)
Inventor: OZAWA YOICHI
IPC: C07K1/02
Filed: 1984-05-25
Granted: 1989-08-22
Abstract: ABSTRACT The peptide sweetener ?-L-aspartyl-L-phenylalanine methyl ester is produced in good yield by dissolving ?-L-aspartyl-L-phenylalanine dimethyl ester in a mixed solvent; the dimethyl ester is converted to the methyl ester by hydrolysis and the methyl ester is crystallized as its hydrochloride.
Patent CA-1215443-A (CA)
Inventor: KURTZ JOHN A
IPC: B65H51/16
Filed: 1984-06-22
Granted: 1986-12-16
Abstract: APPARATUS FOR MAINTAINING RESERVE BONDING WIRE          Abstract of the Disclosure An apparatus is described for maintaining and delivering a slack reserve length of lead wire between a spool or other source and the wire bonding tool of a lead wire bonding machine.  A slack chamber or wind chamber comprised of a housing enclosure, an inlet guide on one side for guiding lead wire into the slack chamber from a spool, an outlet guide on the other side for guiding lead wire out of the slack chamber towards the wire bonding tool maintains the reserve length of lead wire in untangled condition. A source of pressurized dry air or other gas directs a gaseous flow into the slack chamber so that the lead wire is maintained suspended in the gaseous flow in an offset configuration,  Wire sensors are operatively positioned in the slack chamber for sensing the offset of lead wire in the wind stream.  The wire sensors are coupled to sensor and control logic for controlling the delivery and feeding of lead wire from a spool into the slack chamber.  The wire sensors define inner and outer limits of offset thereby maintaining the reserve length within a desired range. Additional elements for back-up control of the lead wire and for handling the spool are described.
Patent CA-1222419-A (CA)
Inventor: ZUCKER JERRY
IPC: D06N3/04
Filed: 1984-06-22
Granted: 1987-06-02
Abstract: SUBSTRATE HAVING FLUOROPOLYMER COATING            Abstract of the Disclosure A substrate such as a fabric is coated with a blend of a fluoroelastomer and particles of polytetrafluoroethylene or similar fluorocarbon resin, preferably in colloidal form.  The elastomer and polymer may be applied as a mixture in the form of a liquid or water suspension, followed by heating.
Patent CA-1226142-A (CA)
Inventor: DICKE WILLIAM C
IPC: B24B23/04
Filed: 1984-07-03
Granted: 1987-09-01
Abstract: SANDING PLATEN SUPPORT   FOR IN-LINE SANDER        ABSTRACT      An in-line sander for hand held operation and having a housing in which a rotating electric motor drives a drive shaft to rotate on a first axis, with a second axis of the drive shaft canted to the first axis and supporting a bearing thereon.  A bearing housing is supported on the bearing to orbit therewith, the bearing housing having an arm extending to a platen support and extensibly and pivotably connected to a portion thereof.  This orbiting of the bearing housing influences motion of the platen sup-port in accordance with the angle of the cone described by the second axis of the drive shaft.  The platen support is made of a resilient material and carried by the housing on legs extending to a base portion, which legs have a low moment of inertia in the direction of in-line sanding, and a high moment of inertia normal to the direction of in-line sanding, so as to be disposed to motion in the in-line sanding path only.  A platen is attached to the platen support by a key and key slot, one on each, which permits assembly when aligned and retains the platen to the platen support when rotated.  Resilient paper clamps are provided which cooperate with grooves in the upper surfaces of posts on the platen, to retain sand paper to the platen.
Patent CA-1230008-A (CA)
Inventor: DUBOIS CHESTER G
IPC: F04B43/06
Filed: 1984-07-25
Granted: 1987-12-08
Abstract: ABSTRACT OF THE DISCLOSURE               A fluid driven pump comprising a pump housing defining a recess including therein a moveable wall which divides said recess into a variable volume driving chamber and a variable volume pumping chamber.  The pump also includes a pressure inlet communicable with the driving chamber and adapted to communicate with a source of pressure which oscillates between an operating pressure and a pressure different from the operating pressure.  The pressure inlet includes a one-way valve for permitting fluid under the operating pressure to communicate with the driving chamber to move the moveable wall in one direction when the driving chamber is in communication with the pressure inlet.          The pump also includes a vent communicable with the driving chamber and adapted to communicate with a source of pressure different from said operating pressure, a spring for moving the moveable wall in the opposite direction when the driving chamber is in communication with the vent, and a shuttle valve arrangement for selectively controlling communication of the driving chamber with the pressure inlet and the vent.  In another embodiment, the vent is adapted to be in communication with the oscillating pressure source and the spring is replaced with a one-way valve in the vent for permitting fluid under the pressure different from the operating pressure to communicate with the driving chamber.
Patent CA-1219694-A (CA)
Title: Molding composition
Inventor: DEAN BARRY D
IPC: C08L25/00
Filed: 1984-10-17
Granted: 1987-03-24
Abstract: ABSTRACT Interpolymers resulting from the polymeriza-tion of a vinyl/aromatic monomer such as styrene, an olefinic nitrile such as acrylonitrile and a maleimide in the presence of both an ethylene propylene-diene terpolymer (EPDM) and an ethylene-acrylate copolymer and to molded products produced therefrom are described.