baber/WOPTO huggingface dataset:
Patent CA-1158977-A (CA)
Inventor: SHANBROM EDWARD
IPC: A23L21/10
Filed: 1981-08-24
Granted: 1983-12-20
Abstract: METHOD OF SELECTIVELY INCREASING                  YIELD AND PURITY OF CERTAIN                    CRYOPRECIPITATE PROTEINS     Abstract of the disclosure AHF and CIg yield and purity in cryoprecipitate concentrate  are improved by suspending said cryoprecipitate concentrate in aqueous solution and then subjecting to a heat treatment step at a temperature of from about 45°C to about 56°C for a period of from about one minute to about sixty minutes to thereby selectively thermally precipitate the contaminating proteins without substantial loss of AHF or CIg activities and recovering the purified AHF or CIg from the precipitate of contaminating proteins.
Patent CA-1180723-A (CA)
Inventor: TAKAHASHI MASAAKI
IPC: B01J23/40
Filed: 1981-09-15
Granted: 1985-01-08
Abstract: TITLE OF THE INVENTION     ABSTRACT OF THE DISCLOSURE           The present invention relates to a process for preparing 4-aminomethylbenzoic acid from 4-hydroxyiminomethyl-benzoic acid dispersed in an aqueous medium by a catalytic hydrogenation.  The catalytic hydrogenation according to the present invention is carried out in a mild condition in an aqueous medium.
Patent CA-1170500-A (CA)
Inventor: DUNN RICHARD P
IPC: F04B47/02
Filed: 1981-10-20
Granted: 1984-07-10
Abstract: Petroleum Pumping  Unit Abstract A petroleum pumping unit which is especially suitable for use in remote oil fields and under unpredictable pumping conditions is disclosed.  The petroleum pumping unit of the present invention, which is easily movable between a folded, collapsed position for storage and shipment and an erect position for pumping operations, includes a horizontal support platform on which is pivotally mounted a mast assembly including a pair of masts spaced outwardly from the centrally positioned well polish rod.  The polish rod is engaged by a notch in a horizontal, vertically movable bridle and is powered by at least one pair of flexibly mounted hydraulic cylinders and associated piston rods attached to the bridle and positioned between the polish rod and the masts and parallel thereto. Vertical movement of the bridle and, therefore, the stroke of the polish rod is defined by upper and lower limit switches which are actuated by actuating means on the bridle. A counterweight support box  which surrounds the masts and is vertically movable thereon is provided to assist the cylinders in powering the polish rod.  Tapered weight brackets including diagonal projecting ridges engage notched counterweights which are held in place by gravity and prevented from contacting the mast by weight guards.  The counterweight box  may be eliminated and a plurality of spaced cylinders employed to power the polish rod.
Patent CA-1173714-A (CA)
Inventor: LUTHER RONALD B
IPC: A61M25/06
Filed: 1981-11-04
Granted: 1984-09-04
Abstract: CANNULA NEEDLE FOR CATHETER:                                       BY: RONALD B. LUTHER     PETER F. FREY MARSHALL F. SPARKS         ABSTRACT OF THE DISCLOSURE:    A cannula needle for a catheter is provided from flat metal sheet blank stock.   A groove of controlled depth is formed on the metal sheet which is then rolled to produce a hollow barrel having a slit parallel to the longitudinal axis; the barrel is then cut into individual needles.  Gripping wings are then welded to each needle on either side of the slit in a separate operation.    In use, when the wings are flexed, the needle will easily split in half along the groove.  This enables the cannula to be separated from the catheter.
Patent CA-1165607-A (CA)
Inventor: KURTZ RUEDIGER
IPC: D21F1/02
Filed: 1981-11-18
Granted: 1984-04-17
Abstract: 6900 CAN INVENTOR: R?DIGER KURTZ         INVENTION: HEADBOX FOR A PAPERMAKING MACHINE     ABSTRACT OF THE DISCLOSURE                    A headbox contains a nozzle channel which, in the direction of flow of the stock suspension or pulp, converges towards an outlet gap or slice. The nozzle channel contains two lips. At least one of these lips has a wall portion or section which is concave with respect to the stock suspension. This wall section is defined by imaginary curved reference lines. This wall section or portion is formed by steps or step portions extending essentially parallel to the outlet gap. Each of the step portions comprises a substantially planar partial surface extending comparable, to the direction of flow of the stock suspension and an end surface disposed transversely with respect to its related planar or flat partial surface. At the region of this particularly simple to fabricate wall section there is thus produced microturbulence directly prior to the sheet formation.         Such microturbulence ensures for a uniform formation of the stock fibers which are suspended at the region of the marginal flow or boundary region of the stock suspension.
Patent CA-1177422-A (CA)
Inventor: KEYES MELVIN H
IPC: C12N9/16
Filed: 1981-11-24
Granted: 1984-11-06
Abstract: ABSTRACT         Disclosed is a process for chemically modifying natural-ly occurring proteins to produce biologically active semisynthetic enzymes.  The process comprises partially denaturing a protein, then contacting the resulting partially denatured protein with an inhibitor of a model enzyme with the desired biological activ-ity and then cross-linking the protein in situ in the presence of the inhibitor to produce a semisynthetic enzyme having the bio-logical activity of the model enzyme.  The thusly prepared semi-synthetic enzyme exhibits different biological activity than the native protein.
Patent CA-1180957-A (CA)
Inventor: CLAUDE JEAN
IPC: F17D5/04
Filed: 1981-11-24
Granted: 1985-01-15
Abstract: '' Method of and device for remotely detecting leaks in a fluid-conveying pipe-line submerged within an ambient fluid and pipe-line provided with such a detection device".                 ABSTRACT OF THE DISCLOSURE     A method of automatically detecting leaks in a fluid-confining enclosure consisting, for a fluid-carrying pipe-line submerged in a surrounding fluid in remotely detecting a leak from one fluid towards the other by means of at least two preferably substantially simultaneous operating steps of local leak detection and of overall leak detection performed on the whole pipe-line.
Patent CA-1160513-A (CA)
Title: Fibrous insulation mat with anti-punking binder  system
Inventor: MCHENRY PATRICIA A
IPC: D04H1/64
Filed: 1981-12-04
Granted: 1984-01-17
Abstract: Abstract of the Disclosure The present invention comprises a low-cost, convenient -to use anti-punking binder  system for use  in bonding entangled masses of mineral fibers such as glass.  The binder system comprises a phenolic--formaldehyde resin mixed with a water soluble urea-foraldehyde resin, the urea-formaldehyde resin content in the binder system comprising an amount of about 5 to 50% by weight of the binder solids content.  The urea-formaldehyde  resin  comprises  about  59%  urea,  about  19% formaldehyde and about  22%  water by weight.   Silane,  ammonia and ammonium sulfate may also be added.
Patent CA-1193207-A (CA)
Inventor: VERRIPS CORNELIS T
IPC: C12N15/29
Filed: 1981-12-11
Granted: 1985-09-10
Abstract: Abstract of the Disclosure The invention relates to structural genes comprising encoding non-processed and partly processed thaumatin, to the various allelic forms of said non-processed thaumatin and to recombinant DNA's and plasmids com-prising said structural genes coding for the various allelic forms of preprothaumatin, and naturally and/or artificially modified preprothaumatin in various stages of its natural processing, and to the use of said recom-binant plasmids to transform microorganisms, particularly bacteria in which said genes are expressed.
Patent CA-1132969-A (CA)
Inventor: HORN DON M
IPC: B66F7/22
Filed: 1982-01-05
Granted: 1982-10-05
Abstract: ABSTRACT OF THE DISCLOSURE         A vehicle hoist has an inclined column along which a carriage having normally horizontal support members is moved. The carriage is moved by a hydraulic cylinder and engages the column in a ratchet-like fashion allowing upwards movement but preventing the lowering of the carriage unless a release mechanism is actuated simultaneously with the hydraulic valve governing the cylinder.  The invention improves safety and provides smooth surfaces about the column.
Patent CA-1196039-A (CA)
Inventor: LOETHMAN STIG
IPC: B65G47/52
Filed: 1982-01-20
Granted: 1985-10-29
Abstract: ABSTRACT            A method and an arrangement for the feeding or transfer of objects from a first to a second conveyor, the latter being driven at a higher constant speed than the firstnamed conveyor. In such a transfer of objects between conveyors equipped with drivers, damage to the objects is avoided if these are given a temporary increase in speed at the moment of transfer.  The increase in speed is brought about in that the driving element of the first conveyor is tipped forward  directly before the transfer in the direction of movement of the conveyor, so that the total speed of the object at the moment of transfer sub-stantially corresponds to the speed of the second conveyor.
Patent CA-1177955-A (CA)
Inventor: TAKAHASHI NOBUAKI
IPC: G11B21/10
Filed: 1982-02-25
Granted: 1984-11-13
Abstract: ABSTRACT OF THE DISCLOSURE         A rotary recording medium reproducing apparatus reproduces a rotary recording medium having at least one surface which has a spiral main track comprising a multiplicity of successively adjacent track turns, and a reference signal track disposed between center lines of mutually adjacent track turns of the main track, wherein the surface of the rotary recording medium comprises at least one information part comprising track turns of the main track having an information signal recorded thereon, where first and second reference signals are alternately recorded in the radial direction of the rotary recording medium on the reference signal track, and a third reference signal is recorded at positions where track turn numbers change for every revolution of the rotary recording medium, and at least one predetermined region in which one of the first, second, and third reference signals is recorded with an existence period longer than that at other normal regions, for one track turn.          The rotary recording medium reproducing apparatus comprises a reproducing tracing element for reproducing a signal from the rotary recording medium, a comparing circuit for comparing level differences between first and second reference signals reproduced by the reproducing tracing element, to produce an output control signal, a switching circuit for switching the reproduced first and second reference signals in response to a third reference signal reproduced by the reproducing tracing element, and for supplying the signals thus switched to the comparing circuit, a tracking control circuit supplied with the output control signal, for controlling the tracking of the reproducing tracing element, a discriminating circuit for discriminating the reference signal which is recorded in the predetermined region with an existence period longer than that at other normal regions, for one track turn, and reproduced by the reproducing tracing element, and a feed control circuit for controlling feeding of the reproducing tracing element by an output of the discriminating circuit.
Patent CA-1173184-A (CA)
Inventor: NOLTE WILFRIED
IPC: C08F2/22
Filed: 1982-03-19
Granted: 1984-08-21
Abstract: Abstract of the Disclosure The invention relates to an improved process for the production of polychloroprene latices by polymerisation to high conversion levels, generally in excess of 50%.  Chloroprene, which may contain up to 50% by weight of a copolymerisable monomer, is polymerized in aqueous alkaline emulsion.  The emulsion contains from 0.1 to 2% by weight, based on the quantity of monomers, of a primary or secondary hydroxyalkylamine in which the OH-group is separated from the amino nitrogen atom by at least two carbon atoms.  The latex forms films characterized by outstanding tensile strength, even when the polymeriza-tion is carried to high conversions.
Patent CA-1167134-A (CA)
Inventor: FARLEY R SCOTT
IPC: G05D23/24
Filed: 1982-03-23
Granted: 1984-05-08
Abstract: METHOD OF CONTROLLING HEATING AND COOLING SOURCES                Abstract of the Disclosure A method of controlling heating and cooling sources utilizes a computer or an electronic thermostat to control a plurality of heating or cooling resources for regulating indoor temperature within a narrow temperature range.  The method maintains a temperature within the control range by activating a required number of heating or cooling sources and proportionally controlling one of the sources within the control range.  An additional heat source is activated each time the indoor temperature falls below a preset "add heat" temperature, and a heat source is deactivated each time the indoor temperature passes a preset "delete Heat" temperature.  Similarly, when the method is operating in the cooling mode, an additional cooling source is activated when the indoor temperature passes an "add cooling" temperature. and an additional cooling source is deactivated each time the indoor temperature passes a "delete cooling" temperature.
Patent CA-1189552-A (CA)
Inventor: SIMON MELVIN L
IPC: B60R13/04
Filed: 1982-05-12
Granted: 1985-06-25
Abstract: ABSTRACT OF THE DISCLOSURE         A method and apparatus are provided for applying a unitary molding system to a mounting surface.  The molding system includes a channel member having a pair of opposed longitudinal ribs interconnected by an adhesive-backed web.          A decorative trim member is secured between the ribs.  The ribs and trim member terminate at locations inboard of the web.  An end tip having an exposed portion and an inserted portion engages the trim member and channel member, thus securing the end tip in spaced relation with the mounting surface.
Patent CA-1179043-A (CA)
Inventor: CONKLIN CHARLES E
IPC: H04Q3/00
Filed: 1982-06-15
Granted: 1984-12-04
Abstract: TITLE  :  DTMF ACTIVATED REMOTE TELEPHONE           LINE SWITCHING AND TESTING                ABSTRACT OF THE DISCLOSURE       DTMF (dual-tone multi-frequency) activated apparatus for remote switching and testing of a four-wire telephone line system is disclosed.  The telephone line provides four-wire service between a first location and a plurality of second remote locations. By using a standard twelve button or expanded sixteen button telephone DTMF key pad, the switching and testing apparatus provides the capability at the first location of controlling switching circuits at any one of the remote locations.  Each remote switching and testing circuit is provided with a DTMF detector and digital logic responsive to the detector for recognizing an assigned address code and any one of the command codes corresponding to the looped mode, the terminated mode, the milliwatt source mode, and the in-data mode.  A programmable three digit address, for example, allows use of up to one thousand switching and testing circuits on one line.  When the digital logic of a switching and testing circuit recognizes its assigned address, the circuit is enabled to respond to a following command code which causes the circuit to assume the corresponding mode.      In addition to the four codes for each of the four modes of the switching and testing circuit, there is a "master reset" code which allows all units, or all units within a group, to be returned to the in-data mode.
Patent CA-1176310-A (CA)
Inventor: VIG JOHN R
IPC: G01R29/22
Filed: 1982-07-07
Granted: 1984-10-16
Abstract: ABSTRACT OF THE DISCLOSURE     The thermal properties of a crystal resonator are rapidly and inexpensively measured by first immersing the resonator into an ice water bath at 0°C and monitoring the frequency of the resonator until the frequency of the resonator is no longer changing; then rapidly immersing the resonator into a boiling water bath at 100 C and monitoring the frequency versus time characteristic of the resonator at least until the frequency of the resonator is no longer changing; repeating the above cycle, and determining the thermal properties of the crystal resonator from the frequency versus time character-istic.
Patent CA-1192603-A (CA)
Inventor: O'CONNELL PATRICK A
IPC: H04N1/024
Filed: 1982-08-16
Granted: 1985-08-27
Abstract: ABSTRACT:            Imaging Device An imaging device (10) comprises an array of photosensitive reading   elements (R2) and an array of associated marking elements (S), one for each reading element.  Each reading element (R2) is linked to its associated marking element (S), by way of a circuit which comprises thin-film tran-sistor amplifiers (22).  In this way the reading elements, marking elements and amplifier circuits may be carried by a compact and inexpensive common structure (21).          The imaging device may be used for copying documents as well as for reading documents and transmitting the information to another of the imaging devices  and for producing a record from information received from another of the devices.
Patent CA-1184728-A (CA)
Inventor: KUHLS JUERGEN
IPC: C08F14/00
Filed: 1982-09-08
Granted: 1985-04-02
Abstract: Abstract of the disclosure:     A process for the continuous agglomeration of granular tetrafluoroethylene polymer powders which cannot be processed from the melt to give molding powders having a high bulk density, an  improved powder flow and particle stability and a narrow particle size distribution is described.  In this process, the powder to be agglomer-ated is first introduced uniformly into a pretreatment stage and is dispersed and pre-agglomerated in this stage in the liquid agglomeration medium, composed of water and an organic liquid capable of wetting polytetrafluoro-ethylene, is then agglomerated to the desired average particle diameter in an agglomeration stage and is finally treated further in an after-treatment stage in order to develop the final shape of the particles.          Finally, the powder is separated from the liquid medium and is dried.  This makes it possible to obtain, in an economical manner and with excellent processing properties, high-grade agglomerated molding powders of such tetra-fluoroethylene polymers, in particular of such polymers which have been modified with small quantities of per-fluoro-(alkyl-vinyl) ethers.
Patent CA-1157823-A (CA)
Title: Roll retaining means for a dispensing box
Inventor: BYER JOSEPH I
IPC: B65D85/672
Filed: 1982-09-20
Granted: 1983-11-29
Abstract: ABSTRACT           "A roll retaining means for retaining a roll of sheeting material in a dispensing box comprising a rod having two end segments with one of the segments being provided with a piercing means and a sleeve mounted thereon adjacent to the piercing means, the sleeve, upon being inserted through an end wall of  the dispensing box, retains the roll in position when the other of the end segments is secured to the box."
Patent CA-1185895-A (CA)
Inventor: JACKSON G C JR
IPC: E21B4/02
Filed: 1982-10-21
Granted: 1985-04-23
Abstract: QUICK RELEASE DOWNHOLE MOTOR COUPLING Abstract of the Invention An improved quick release coupling assembly for a drive shaft of a downhole motor is disclosed.  The quick release coupling has an internally tapered collar to cause the mating taper on the outside surfaces of the clutch dogs to be held firmly by the collar and in intimate engaging relationship between the mating tapered surfaces.  The angle of the mating tapered surfaces is greater than a self-locking angle so that the quick release feature permits easy disassembly of the joint, and thus the tool, on the rig floor or as well as in the shop.
Patent CA-1198682-A (CA)
Inventor: COUTURIER JEAN-MAURICE
IPC: F01P11/12
Filed: 1982-11-04
Granted: 1985-12-31
Abstract: NOISE ABSORPTION APPARATUS Abstract of the Disclosure Sound damping apparatus for internal combustion engines, especially for public works or agricultural machines, and machines provided with such an apparatus.  This sound damping device is intended for machines or engines mounted within a bonnet (1) and provided with a blower (3) discharging cooling air to the outside through a radiator (4).  It is constituted by a sound damping element (9, 21) such as a block of expanded foam material having one or more central openings (14) oriented in the direction of flow of the air discharged by the blower and peripheral openings (16) inclined or specially shaped so as to direct the air towards the central flow passing through the central opening or openings downstream of the device.  Means are provided for forming an expansion chamber (13) between the radiator and the sound damping element.  There is produced as a result of this inclination a jet effect exerted by the lateral air on the central flow which produces the aspiration of a fraction of the said lateral air towards the center in the expansion chamber and a reduction of the noise level.
Patent CA-1193736-A (CA)
Inventor: FURUYA TSUNEO
IPC: G11B5/09
Filed: 1983-01-18
Granted: 1985-09-17
Abstract: ABSTRACT OF THE DISCLOSURE         In apparatus for error correction in which data sequences containing blocks of data, previously arranged on a known time-base, and formed of data words and check words are written into a memory under control of a write address generator, and the data sequences are subsequently read out from the memory under control of a write address generator, so as to generate rearranged data sequences; during writing and  reading  of  the  data  sequences,  error  correction  is carried out by apparatus that includes an error correction arithmetic  circuit  for  performing  the  error  correction calculation, a pointer addition circuit for adding a pointer to the data words in association with an error state of the blocks, and a memory for memorizing a microprogram having fields to control the error correction arithmetic circuit and pointer addition circuit.
Patent CA-1196469-A (CA)
Inventor: DUCHANE DAVID V
IPC: C23C14/00
Filed: 1983-01-21
Granted: 1985-11-12
Abstract: ABSTRACT OF THE DISCLOSURE          A method of forming a thin (<2 µm) unbacked metal foil having a desired curviplanar shape is disclosed.  In accordance with the method, a soluble polymeric film, preferably comprising polyvinyl alcohol, is formed on a supporting structure having a shape that defines the de-sired shape of the foil product.  A layer of metal foil is deposited onto one side of the soluble film, preferably by vacuum vapor deposition.  The metallized film is then im-mersed in a suitable solvent to dissolve the film and thereby leave the metal foil as an unbacked metal foil element mounted on the supporting structure.  Aluminum foils less than 0.2 µm (2,000 A) thick and having an areal density of less than 54 µg/cm2 have been obtained.
Patent CA-1194679-A (CA)
Title: Semicontinuous process for the production of pure silicon
Inventor: DIETL JOSEF
IPC: C01B33/02
Filed: 1983-03-01
Granted: 1985-10-08
Abstract: ABSTRACT OF THE DISCLOSURE      Pure silicon is obtained in a semicontinuous process by reducing quartz sand with aluminum in a slag medium based on alkaline earth metal silicates.  The slag serves thereby simultaneously as a solvent for the aluminum oxide that forms and as an extraction medium for impurities that occur.  The silicon formed separates out of the silicate slag and can be separated off.  The aluminum oxide produced by the reduction can be separated from the slag and used for recovery of reusable aluminum.
Patent CA-1200514-A (CA)
Inventor: PATTERSON RICHARD A
IPC: B65D17/50
Filed: 1983-04-08
Granted: 1986-02-11
Abstract: Container Closure System With Vent Opening Through The Closure Tape Abstract An easy-openable tape closure for a container for gas-containing beverages and comprising an interior tape spanning a pour opening, an exterior tape sealed to the interior tape in the area of the pour opening and having a vent opening in the area of the pour opening.  A pull tab is positioned over the exterior tape and sealed there-through to the interior tape to provide means for rupturing the interior tape at the vent opening to vent the container.