baber/WOPTO huggingface dataset:
Patent CA-1177948-A (CA)
Inventor: SCHERBATSKOY SERGE A
IPC: E21B47/18
Filed: 1980-08-18
Granted: 1984-11-13
Abstract: BOREHOLE MEASUREMENT WHILE DRILLING SYSTEMS and METHODS         Abstract of the Disclosure Disclosed are improvements pertaining to measurement while drilling apparatus, methods, and systems, including: generation of mud pulse pressure variations in a regime of hydraulic shock waves; transmission of information carrying signals via mud pressure variations which in-clude various interfering signals generally termed "noise" and employing special techniques involving digital filters for accomplishing reception of said information carrying signals; providing hydraulic means to automatically effect periodic closing of the valve means that produces the in-formation carrying signals; providing electrical means to inhibit valve means operation in case of electrical fail-ure in downhole apparatus; providing means which serve to greatly increase the number of satisfactory actuations of said valve means attainable without downhole battery re-charge or replacement; providing unique pulse time codes which permit substantial increase in rate of information transmission and the accuracy and precision of such trans-mission.
Patent CA-1156752-A (CA)
Inventor: STERNBERG WALTER
IPC: G01N29/38
Filed: 1980-09-26
Granted: 1983-11-08
Abstract: ABSTRACT OF THE DISCLOSURE A method of testing an elongate object, comprises feeding the object successively past first and second ultrasonic testing heads, the first testing head being operative to detect the leading and trailing ends of the object and the second test-ing head being operative to detect defects in the object, de-termining the precise moments at which the leading and trailing ends arrive at the second head from the moments at which said ends pass the first testing head, the amount of advance of said ends beyond the first testing head, and the distance between said testing  heads, and accepting data from said second testing head only in the period between said precise moments.
Patent CA-1159406-A (CA)
Inventor: LOCKER JAN A K
IPC: B07B1/06
Filed: 1980-10-10
Granted: 1983-12-27
Abstract: ABSTRACT OF THE DISCLOSURE This invention provides an improvement in a sieve device for separating a mixture of particulate material into components of different sizes, the sieve device having a perforated sieve surface rotated by a central vertical shaft. The improvement resides in the provision of means for com-pensating for torsional shock loads applied to the sieve surface and shaft wherein the shaft is mounted on the housing and rigidly coupled to drive means for positioning the latter adjacent the housing. A spring device extends normal to the shaft and is interposed between the drive means and housing for resiliently absorbing torsional shock loads. With the use of this invention, the components of the drive set have a much longer duration of life and operational breakdowns are precluded.
Patent CA-1160382-A (CA)
Inventor: MILLER JAMES R
IPC: C08F2/00
Filed: 1980-10-20
Granted: 1984-01-10
Abstract: ABSTRACT OF THE INVENTION Residual acrylonitrile dissolved in acrylo-nitrile copolymers and/or water in which acrylonitrile polymers are polymerized or processed such as a latex thereof or from acrylonitrile processes can be substan-tially reduced by adding to polymer-water mixtures for example, after at least 90% of the monomers have been polymerized, additional catalyst and an amount of comonomer in excess of the amount of free acrylonitrile present.
Patent CA-1142303-A (CA)
Inventor: GOUZOS JOHN
IPC: A01K63/00
Filed: 1981-01-08
Granted: 1983-03-08
Abstract: S-5??0.01 Device For Small Animal Escape From A Pool Abstract of Invention A device to permit the escape of small animals from a pool having a walkway border including a ladder arrangement positioned below the walkway border which ladder arrangement provides escape for small animals from the surface of the pool through an escape hole in the walk-way border.
Patent CA-1177290-A (CA)
Inventor: WIECH RAYMOND E JR
IPC: C04B35/638
Filed: 1981-01-14
Granted: 1984-11-06
Abstract: MANUFACTURE OF PARTS FROM PARTICULATE MATERIAL          ABSTRACT OF THE DISCLOSURE   The disclosure relates to a method of binder removal from a green body before sintering or the like wherein the green body is initially heated to a temperature above the melting or flow point of the binder to liquify the binder and, at the elevated temperature, a small portion of the green body is brought into intimate contact with a non-supporting porous body of lower capillarity potential for the liquid binder.  The liquid is drawn from all parts of the green body to the region of contact between the porous body and the green body and enters the body of lower capillarity potential preferentially, removing liquid from the green body through the surface of the green body only at said region of contact.  The draining is continued with or without further increase in temperature until the green body is opened or becomes permeable.
Patent CA-1156999-A (CA)
Inventor: TUNSTALL KARL N
IPC: F16K3/02
Filed: 1981-01-20
Granted: 1983-11-15
Abstract: VALVE            Abstract of the Disclosure A valve having a valve stem extending through a bonnet with packing therebetween and a back seat and back seat valve member cooperable to isolate the packing from pressure within the valve body wherein an auxiliary piston is provided to positively hold the back seat valve member on the back seat under the influence of pressure other than the pressure within the valve body.  The back seat valve may be actuated by auxiliary pressure while changing the bonnet packing and may also serve to positively close the valve in the case of a malfunction of the usual closing mechanism.
Patent CA-1170979-A (CA)
Inventor: SAVARD GUY
IPC: E21B43/243
Filed: 1981-01-28
Granted: 1984-07-17
Abstract: Abstract of the Disclosure An oil recovery installation made up of an inner conduit for an oxidant gas and a surrounding outer conduit forming therebetween a water jacket for cooling liquid leading from an upper end at the surface through a sealing well casing to a lower end within the underground oil re-covery formation.  Terminal means closes the lower end of the outer conduit and provides a restricted passage in communication with the inner-conduit for injecting oxygen into the formation.  There is means for supplying oxidant gas under pressure to the upper end of the inner conduit and means for supplying water to circulate within the cooling jacket.  There is means for controlling the supply rate of oxidant gas and means for controlling the water supply rate.
Patent CA-1164994-A (CA)
Inventor: OKADA TAKASHI
IPC: H04N5/20
Filed: 1981-01-29
Granted: 1984-04-03
Abstract: ABSTRACT OF THE DISCLOSURE A control circuit for controlling the relative brightness of a video signal includes an average picture level (APL) detector to measure the average brightness of the video signal and a brightness control circuit responsive to the detected average brightness to provide an output video signal wherein the picture areas containing most of the picture information are corrected to give greater contrast. In the output signal. portions corresponding to the black and peak white levels of the incoming video signals are provided substantially at the black and peak white levels, respectively, while the average brightness level of the output video signal is provided at an optimum level, such as 50%.  The brightness control circuit can include a variable gamma correction circuit in which the value of gamma is automatically determined by a control signal provided from the APL detector.
Patent CA-1163030-A (CA)
Inventor: BECK HEINZ
IPC: C08L1/00
Filed: 1981-02-02
Granted: 1984-02-28
Abstract: ABSTRACT           This disclosure relates to a process for forming plastics from a melt of a mixture of plastics, stabilizers, antioxidants and lubricants, wherein the lubricants comprise a derivative of a copolymer of unsaturated polycarbonic acids or the anhydrides thereof and  .alpha.-olefins having an average of at least 28 carbon atoms.
Patent CA-1160013-A (CA)
Inventor: MATHIEU JULIEN C
IPC: B29C33/56
Filed: 1981-04-13
Granted: 1984-01-10
Abstract: ABSTRACT OF THE DISCLOSURE An apparatus for and method of severing a continuous flexible reinforced elastomeric conduit supported on a plurality of elongated rigid mandrels disposed in connected end-to-end relation are provided herein. The apparatus and method enable cutting through the conduit at each end of each mandrel so that each mandrel has a length of conduit therearound which is approximately equal to the length of the mandrel.
Patent CA-1136631-A (CA)
Inventor: MATERNE CARSTEN
IPC: C07D211/90
Filed: 1981-06-10
Granted: 1982-11-30
Abstract: ABSTRACT OF THE DISCLOSURE         The invention relates to 1,4-dihydropyridines which carry an arylalkyl or aryloxyalkyl radical in the 4-position.  Also included in the invention are methods for the preparation of said compounds.  The invention further relates to compositions containing said 1,4-dihydropyridines and the use of said compounds and compositions for their circulation influencing effects.
Patent CA-1141332-A (CA)
Inventor: MONTE CHARLES S
IPC: G01N27/447
Filed: 1981-06-10
Granted: 1983-02-15
Abstract: 417D-290 Canada ELECTROPHORETIC GEL CONTAINER     Abstract of the Disclosure An electrophoretic gel container.  The device includes a base and a cover.  The gel is adherently bound to a backing sheet.  The cover is positioned to clamp the backing sheet between it and the base. The cover is spaced from the gel.
Patent CA-1152816-A (CA)
Inventor: NETTING DAVID I
IPC: C04B38/00
Filed: 1981-06-18
Granted: 1983-08-30
Abstract: ABSTRACT OF THE DISCLOSURE         Non-fused hollow glass microspheres that consist primarily of silicate are rendered more water-resistant by treatment with multivalent metals.  The hollow microspheres are slurried with water and then a solution of a multivalent metal salt such as Al2(SO4)3 is added to the slurry.  The rate of the addition is controlled so that the pH can be regulated.  Separ-ating, washing and drying complete the preparation.  The microspheres so prepared are characterized by a weight % ratio of "polysalt" solids to sodium silicate solids of 0.02:1 to 2.0:,1, said sodium silicate containing 1.5 to 4.0 moles of  SiO2 per mole of Na2O; a particle size of 35 to 2000 microns; a bulk density of 2 to 20 lbs/cu.ft., less than 7% moisture and 0.1 to 5.0% of a multivalent metal that decreases the solubility of the microsphere in water.
Patent CA-1168623-A (CA)
Inventor: MUMFORD GEORGE V
IPC: B65D41/34
Filed: 1981-08-11
Granted: 1984-06-05
Abstract: ABSTRACT OF THE DISCLOSURE           A molded thermoplastic closure has an annular skirt depending from the periphery of a disc-shaped panel, and a heat shrinkable annular band depending from the annular bottom edge of the skirt.  The band has an outside diameter adjacent the annular bottom edge greater than the outside diameter of the skirt bottom edge and an inside diameter adjacent the an-nular bottom edge less than the outside diameter of the skirt adjacent the edge, thereby defining a continuous shearable annular connection between the annular bottom edge of the skirt and the top annular portion of the band.
Patent CA-1167856-A (CA)
Inventor: SCHMIDT PAUL J
IPC: B41M5/136
Filed: 1981-08-28
Granted: 1984-05-22
Abstract: ABSTRACT OF THF DISCLOSURE         This invention relates to 3,7-bis(disubstituted amino-phenyl- or indolyl)-3,7-bis(diphenylamino)pyromellitides, 3,5-bis(disubstituted aminophenyl- or indolyl)-3,5-bis(diphenyl-amino)pyromellitides and mixtures thereof useful as color formers, particularly in carbonless duplicating and thermal marking systems, which are prepared by the interaction of 2,5-bis(disubstituted aminophenyl- or indolyl)carbonyl-1,4-benzenedicarboxylic acids or 2,4-bis(disubstituted aminophenyl-or indolyl)carbonyl-1,5-benzenedicarboxylic acids and mixtures thereof with diphenyiamines.  The compounds have the formula         or   wherein R, R0, R1 and R2 are hydrogen, halo, OH, non-tertiary lower alkoxy, non-tertiary alkyl, carboxyl, esterified carboxyl or (substituted) amino, and Y is a (disubstituted amino) phenyl or a (substituted) indolyl group.
Patent CA-1184543-A (CA)
Inventor: DEININGER ANTON
IPC: B67D1/00
Filed: 1981-09-04
Granted: 1985-03-26
Abstract: Abstract of the Disclosure:            Metering valve, including a substantially vertically-disposed tubular housing,  the housing having an upper and a lower end, the lower end of the housing having a valve seat formed thereon and an outlet opening formed therein, a cap being integral with the upper end of the housing and having an impact surface formed thereon, a substantially tubular ram being axially liftable by a magnetic force field in the housing, the ram having an upper and a lower end, the lower end of the ram having a sealing cone formed thereon and the ram having drainage ports formed therein in vicinity of the sealing cone, the drainage ports being oper-able to leak fluid below the ram when the ram is lifted, the upper end of the ram being operable to adjoin the impact sur-face of the cap when the ram is lifted, and the valve seat having at least one selectively operable air inlet formed therein being associated with the outlet opening.
Patent CA-1168434-A (CA)
Inventor: CHIDA KAZUNORI
IPC: C03B37/018
Filed: 1981-12-09
Granted: 1984-06-05
Abstract: ABSTRACT OF THE DISCLOSURE The extension tube at the outlet end of a burner used in the production of optical fiber preforms is provided with a heating device to raise the temperature of the interior of the tube and reduce the amount of glass particles deposited onto the tube.
Patent CA-1168383-A (CA)
Inventor: MIR JOSE M
IPC: G02F1/055
Filed: 1982-01-22
Granted: 1984-05-29
Abstract: ELECTRONIC IMAGING APPARATUS WITH LIGHT VALVE AREA ARRAYS  Abstract of the Disclosure Two panels, each having a plurality of electrically-addressable, parallel light valve strips are arranged along an optical axis between entrance, exit and intermediate polarizing means.  The strips of the respec-tive panels are generally perpendicular and the entrance and exit polarizing means have their directions of polar-ization mutually aligned and perpendicular to the inter-mediate polarizing means.  By sequentially activating the strips of a first panel and imagewise addressing the strips of the other panel during each such sequential activation an area image is formed.
Patent CA-1190116-A (CA)
Inventor: SERAGNOLI ENZO
IPC: A24C5/32
Filed: 1982-01-29
Granted: 1985-07-09
Abstract: "A CIGARETTE-MAKING MACHINE"                    ABSTRACT      A cigarette-making machine in which the shredded tobacco is supplied to an upper end of a descending shaft (30) in part from a carding unit (24) and in part at an intermediate point of the shaft (30) itself from a plurality of channel elements (46) located alongside on  another over the whole width of the shaft (30) and to which recycled tobacco is supplied; each said channel element (46) having an associated respective vibrator device (48) the frequency of vibration of which is a function of the level reached by the tobacco within the said descending shaft (30) beneath the output end of the associated channel element (46).
Patent CA-1167008-A (CA)
Inventor: SPANEL ABRAM N
IPC: A41C5/00
Filed: 1982-02-04
Granted: 1984-05-08
Abstract: ABSTRACT OF THE DISCLOSURE:          A method and apparatus for manufacturing latex girdles wherein fabric liners are applied to latex sheaths as a part of the overall girdle production operation.  The process involves preparing sheaths, attaching the fabric liners to the sheaths and further processing sheath and liner to eliminate flaws such as wrinkles.  The process may be automatic and the apparatus enables a precisely controlled operation.
Patent CA-1168607-A (CA)
Inventor: WHITNEY RALPH A
IPC: B01J19/08
Filed: 1982-02-24
Granted: 1984-06-05
Abstract: ABSTRACT OF THE DISCLOSURE A process for preparing biotin intermediates by photochemical cycloaddition of an imidazolin-2-one via a cyclobutanol intermediate of the formula   where R1 and R2 are the same or different and selected from alkyl, alkenyl, alkynyl, cycloalkyl, aryl and alkoxy, and R3 is substituted or unsubstituted lower alkyl, and oxidative rearrangement thereof to a novel lactone intermediate or the formula   where R1, R2 and R3 are as above defined, in the presence of ruthenium trichloride and a metal hypochlorite is disclosed.          The lactone intermediate may be reduced to a diol which can be converted by known chemical and/or microbiological methods to biotin or other intermediates thereof.
Patent CA-1223433-A (CA)
Inventor: HETZ G BRIAN
IPC: B26D3/06
Filed: 1982-05-05
Granted: 1987-06-30
Abstract: ABSTRACT OF THE DISCLOSURE       An improvement is provided in a belt cutting apparatus and method for making such apparatus.  The apparatus utilizes a rotatable cutting instrument.  The rotatable instrument includes a cooperative pair of support bodies each having a central axis and a plurality of rake-like cutting bars having a particular recited structure.  Specified means support the bars on the respective bodies with the elongate axis parallel to, and in radially-spaced relation from, the central axis.         Particularly recited angular displacements are provided for the rake-like cutting bars.
Patent CA-1186929-A (CA)
Inventor: MEMEGER WESLEY JR
IPC: D21F5/16
Filed: 1982-08-26
Granted: 1985-05-14
Abstract: TITLE LOW DENSITY NONWOVEN SHEETS            ABSTRACT Coherent expanded nonwoven sheets having a density of less than 0.16 g/mL are comprised of fibrids of a wholly synthetic polymer, preferably not melting below 130°C, and optionally containing up to 80% by weight floc.  The sheet is comprised of a plurality of paper-like membranous layers which join and separate at random throughout the thickness of the sheet to form expanded cells.  The expanded nonwoven sheets are prepared by rapid vaporization of water in a wet, never-dried sheet of fibrids containing at least 60% by weight water.  Rapid vaporization of the water preferably is induced by dielectric heating. Embossing may be used before or during expansion to produce a sheet which is expanded only in selected areas.
Patent CA-1186606-A (CA)
Inventor: BUERKNER WOLFGANG H
IPC: B27N3/14
Filed: 1982-09-20
Granted: 1985-05-07
Abstract: Apparatus for Aligning Chips During the Manufacture of Strandboards Abstract of the Disclosure An apparatus for aligning chips in the manufacture of strandboards functions to align the chips in a preferred direction by means of vertical aligning plates arranged parallel to one another and equally spaced apart.  Spacing rings, spiked discs, solid discs and spiked discs are alternately arranged in that order and in the same sequence on rotating shafts located above the guide plates.  The rotating shafts are arranged perpendicular to the preferred direction of chip deposition and are parallel and at a distance from and adjacent to each other.  A mounting for each of the spikes of the spiked discs is proposed for the purpose of accurately maintaining a preferred direction for large chips being processed.
Patent CA-1163621-A (CA)
Title: Titanium impregnated silica-chromium catalysts
Inventor: MCDANIEL MAX P
IPC: C08F10/00
Filed: 1982-12-22
Granted: 1984-03-13
Abstract: Abstract of the Disclosure In accordance with one embodiment of this invention, a silica hydrogel is prepared and dried in the presence of a pore preserving agent after which a titanium compound is anhydrously incorporated there-with.  In accordance with the second embodiment of this invention, a silica hydrogel or a silica xerogel is impregnated with an aqueous organic acid solution of a substituted or unsubstituted titanium acetyl-acetonate.  The invention allows the use of conventional drying to produce a silica exhibiting characteristics associated with azeotrope dried titanium-silica for use as a support for chromium catalysts.  The resulting catalysts are broadly applicable in the polymerization of olefins and are of particular utility in the slurry polymerization of olefins, particularly predominantly ethylene monomer.
Patent CA-1196729-A (CA)
Inventor: CASTEL RENE
IPC: G06F13/28
Filed: 1983-02-10
Granted: 1985-11-12
Abstract: METHOD AND DEVICE FOR EXCHANGING INFORMATION BETWEEN TERMINALS AND A CENTRAL CONTROL UNIT               ABSTRACT            An information exchange method in a communications controller comprises a central control unit associated with a store that provides a number of parameter/status and data areas equal to the maximum number of interfaces to be managed by the controller.  The store contains a line vector table which indicates the address of each area assigned to each interface.  The exchange of the parameter/status information and data on the input/output bus uses a minimum number of input/output operations controlled by the program stored in the store.
Patent CA-1208464-A (CA)
Inventor: ROSE FLOYD D
IPC: G10D3/12
Filed: 1983-03-14
Granted: 1986-07-29
Abstract: APPARATUS FOR RESTRAINING AND FINE TUNING     THE STRINGS OF A MUSICAL INSTRUMENTS, PARTICULARLY GUITARS                        Abstract The fine tuning apparatus functions as the bridge element (20) of a stringed instrument.  The fine tuning apparatus includes a base element (22) and a series of fine tuning elements (40), one for each string.  Each fine tuning element (40) includes a forward block element (42) and a rear block element (52) which is rotatable relative to the forward block element.  A string of the musical instrument makes critical contact with the fine tuning apparatus at point (59) on the rear block element (52) and maintains surface contact with the rear block element (52) as the surface slopes downwardly and rearwardly from the bridge critical contact point (59), until the point where the string is clamped against surface (60).  Means (64, 70) are provided for adjusting the rotatable position of the rear block element (52) relative to the forward block element (42), which results in a change in the tension of the string and hence the fine tune of the string.
Patent CA-1187902-A (CA)
Title: Process for the preparation of p-hydroxy-benzyl-  nitriles
Inventor: FARBER LEON
IPC: C07C255/53
Filed: 1983-03-14
Granted: 1985-05-28
Abstract: ABSTRACT OF THE DISCLOSURE          A process is provided for the preparation of p-hydroxy-benzyl-nitriles starting from the corresponding p-hydroxy-benzaldehyde, first reducing the p-hydroxy-benzaldehyde to the p-hydroxy-benzyl amine, a primary amine, with hydrogen in the presence of aqueous ammonia, preferably with the addition of small amounts of lower alkyl alcohol, and Raney nickel catalyst a' low pressure; and then converting the amine to the p-hydroxy-benzyl-nitrile by reaction with sodium cyanide at elevated temperature; the first stage, the reduction, is applicable also to o- and m-hydroxy benzaldehydes.