baber/WOPTO huggingface dataset:
Patent CA-1155642-A (CA)
Inventor: TAN CHU-CHAY
IPC: G02B6/245
Filed: 1981-02-20
Granted: 1983-10-25
Abstract: THERMALLY AIDED STRIPPING OF OPTICAL FIBER JACKETS       Abstract of the Disclosure A protective jacket around an optical fiber is rendered more easily strippable by heating the fiber to a temperature causing differential expansion of jacket and fiber and consequent breakage or weakening of adhesive bonding between the fiber and its jacket.                              - i -
Patent CA-1113660-A (CA)
Inventor: THOMPSON RAYMOND
IPC: C04B33/13
Filed: 1979-10-11
Granted: 1981-12-08
Abstract: ABSTRACT OF THE DISCLOSURE            A bone ash for the manufacture of bone china comprises calcined bone on which has been incorporated by calcination a source of B2O3.  The incorporation of the B2O3 in the bone ash facilitates the manufacture of bone china, particularly promoting the formation of the micro-crystalline phase which is characteristic of bone china, thereby making it possible for bone china to be made with a wider firing temperature range, in a shorter time and if desired, lower temperatures than normal.
Patent CA-1169230-A (CA)
Inventor: LALANCETTE JEAN-MARC
IPC: C04B35/82
Filed: 1981-04-29
Granted: 1984-06-19
Abstract: A B S T R A C T           There is disclosed chemically modified chrysotile asbestos fibers, more particularly phosphated asbestos fibers containing from 0.5 to 5% by weight of phosphate groups and heat treated phosphated asbestos fibers, both of which have an infrared spectrum which exhibits substan-tially no absorption within the range of 954-1080 cm-1. The novel phosphated asbestos fibers are characterized by reduced haemolytlc and cytotoxic activities.
Patent CA-1146046-A (CA)
Inventor: BROUWER CHARLES W
IPC: D03D51/08
Filed: 1981-04-15
Granted: 1983-05-10
Abstract: Title of the Invention SELECTIVELY TIMED COMBINED WARP AND WEFT LOOM          STOP MOTION          Abstract of the Disclosure A combined warp and weft loom stop motion which is effective to bring the loom to a halt at different points along the loom cycle according to the type of yarn that has broken. Each of a pair of separate driving means is driven in predetermined adjustable timed relation to the loom operating cycle and is connected to the loom drive operating control only when the corresponding yarn breaks. Preferably, the stop motion in-cludes a loom control circuit operable to weave a single weft yarn and then stop the loom at a generally predetermined point in order to facilitate repair of a defective cycle.
Patent CA-1152353-A (CA)
Inventor: REVILLET GEORGES
IPC: B04B5/04
Filed: 1981-04-28
Granted: 1983-08-23
Abstract: Abstract of the Disclosure The analytical rotor comprises a central distribution chamber (3), the periphery of which communicates with a number of portioning cavities (6) each having an inlet (8) and an outlet connected to an analytical cell (2) by a transfer passage (9). The inlets (8) of the portioning cavities (6) are also connected to overflow reservoirs (14,17, 44) by a  communication passage comprising a wall (10, 45), and an annular collector (12, 43).      The transfer passages (9) are capillary ducts adapted to form a stable meniscus of liquid at the outlets of passa-ges (9) and prevent air coming out of cells (2) until a predetermined differential pressure is applied to the liquid. This enables the excess liquid to be discharged into the overflow reservoirs at a first rotor speed, whe-reas the portions of liquid can subsequently be trans-ferred to the cells at a second and higher speed.       Fig. 1
Patent CA-1157856-A (CA)
Inventor: FRYER RODNEY I
IPC: C07C45/63
Filed: 1981-05-14
Granted: 1983-11-29
Abstract: Abstract There are presented 3H-2-benzazepines and 4,5-dihydro-3H-2-benzazepines of the formula     I   wherein X is hydrogen, chloro or bromo, Y is hydrogen, fluoro or chloro, the broken line denotes an optional bond, n is zero or 1 and R1 is hydrogen, bromo, chloro, iodo, a radical of the formula   or a radical of the formula   wherein R2 is hydrogen, lower alkyl, hydroxy, amino, monoalkylamino or dialkylamino and R3 is hydroxy  or amino with the proviso that (i)  X and Y cannot both be hydrogen, and (ii) where R1 is other than hydrogen then the bond denoted by the broken line must be present, and pharmaceutically acceptable salts thereof.      The compounds exhibit activity as anticonvulsant, sedative, antianxiety, antidepressant and muscle relaxant agents or are intermediates to compounds which exhibit such acti-vities.      Also presented are novel intermediates and processes to produce the above benzazepines.
Patent CA-1195891-A (CA)
Inventor: IVANCHENKO NIKOLAI N
IPC: F02B23/04
Filed: 1981-05-25
Granted: 1985-10-29
Abstract: ABSTRACT OF THE DISCLOSURE      An internal combustion engine comprises a cylinder, a cylinder head, a piston with a combustion chamber having a conical side wall tapered toward a throat, and an injec-tion nozzle for delivring fuel to the side wall of the combustion chamber, the injection nozzle being disposed with an eccentricity with respect to the throat centre.          An angle ? between projections, onto the cross sec-tion of the combustion chamber, of a pair of adjacently spaced outlets for delivering fuel to the closest to the injection nozzle section of the side wall of the combustion chamber is 1.8-2.2 times as large as an angle .delta. between the projections, onto the same plane, of axes of any pair of adjacently spaced outlets for delivering fuel to the farthermost from the injection nozzle section of the combustion chamber side wall.       The engine according to the invention has the advanta-ges of providing a fuel economy which is 3-5 per cent higher as compared to conventional engines of this type; besides, the engine has a lower gas temperature at the exhaust from the cylinders and operates reliably when supercharge-rated. Furthermore, the lifetime of pistons in the engine according to the invention is longer, due to no cracking arising on the edge of the combustion chamber throat.
Patent CA-1159217-A (CA)
Inventor: WILKINSON PAUL P
IPC: B65D88/08
Filed: 1981-08-07
Granted: 1983-12-27
Abstract: Abstract A liquid storage tank (10) for providing a liquid for pressure in such a way that pressurized air will not be absorbed by the liquid is disclosed. According to one embodiment of this invention, the pressurized storage tank (10) of this invention having side walls (12) and an end wall (14) uses a plunger or a plate (24) having a seal (26) which is biased to move within the tank as water or liquid is forced into the tank or withdrawn from the tank. According to this embodiment springs (38, 40, 42) may be positioned in different arrangements and used to provide the bias that maintains the water or liquid under pressure.  Still other embodiments use mass (68) or weight while still others use power actuated means (56) or air pressure for providing the necessary bias.  In other embodiments of the invention, the tank may include a seal and/or a collapsable liner (66) to prevent any of the liquid from passing the plunger or piston (24).  The addition of a collapsable liner (66) is especially useful if the liquid to be maintained under pressure is corrosive.
Patent CA-1168175-A (CA)
Inventor: WALLMAN P HENRIK
IPC: C10G1/02
Filed: 1981-08-20
Granted: 1984-05-29
Abstract: ABSTRACT OF THE DISCLOSURE A process for retorting a carbon containing solid, especially oil shale, comprises passing heat trans-fer particles and raw particles of carbon containing solid downwardly through a fluidized retort zone containing a plurality of baffles to prevent gross vertical backmixing. The heated solid particles and heat transfer particles are then passed to a moving packed bed retort to pyrolyze the carbon containing solid particles.
Patent CA-1184091-A (CA)
Inventor: CUNNINGHAM WALTER F
IPC: B42F21/04
Filed: 1981-09-24
Granted: 1985-03-19
Abstract: ABSTRACT OF THE DISCLOSURE         There is disclosed herein a color-coded filing system for uniquely identifying documents to be filed and retrieved.  The document to be filed has sequential filing characters applied along the top and side edges thereof.  Marker tabs are provided which are pressure sensitive, adhesive-backed and transparent and have a colored peripheral border that defines a two-position transparent aperture.          A positively applied filing character is provided in the first position of the tab aperture and the second position of the marker tab is blank.  The marker tabs can be applied over the filing characters on said document so that the characters on the document appear in the second position of said aperture next to the characters on the tab.  Both characters are of a similar size, color and shape so as to provide a unique and visually acceptable identification for said document.  The filing characters can be either numerals or letters which can be used on the top or side edge of the document for drawer or shelf filing.
Patent CA-1133665-A (CA)
Inventor: PRINCE JACK A
IPC: A22C25/00
Filed: 1981-09-25
Granted: 1982-10-19
Abstract: ABSTRACT OF THE DISCLOSURE          A deboning apparatus of the sort which operates an auger means to separate bone and similar hard material from the meat of chickens, fish or other animals.  The present machine is vertically oriented whereby the ground meat and bone product is ingested or introduced above and flows by the auger to a meat exit therebelow and then a bone exit below the meat exit.  The electric drive motor is supported beneath the bot-tom support plate and there is a bottom radial bearing and a top combination radial and thrust bearing.  Other components include a particular arrangement and a compression for adjust-ing internal pressure as well as a screen for separation of the bone and meat.
Patent CA-1181598-A (CA)
Inventor: RASTAS JUSSI K
IPC: C01G49/00
Filed: 1981-09-30
Granted: 1985-01-29
Abstract: A HYDROMETALLURGICAL PROCESS FOR THE RECOVERY OF LEAD, SILVER AND GOLD, AS WELL          AS ZINC, FROM IMPURE JAROSITE RESIDUES OF AN ELECTROLYTIC ZINC PROCESS     ABSTRACT OF THE DISCLOSURE   The impure jarosite residue of an electrolytic zinc process is leached in a sulfuric-acid-bearing solution in order to produce a leach residue which con-tains lea?, silver and gold and a ferrisulfate-bearing solution and to separate them from each other, whereafter the leach residue is sulfidized and froth-flotated in order to recover a combined concentrate which contains lead, silver and gold, and the ferrisulfate-bearing solution is fed to a ferritic treatment stage, in which ferrisulfate and ferrites react in the presence of ions of alkali and ammonium at 80-105°C and form pure jarosite and zinc sulfate.
Patent CA-1161688-A (CA)
Inventor: KOCH KLAUS
IPC: B30B9/14
Filed: 1981-11-13
Granted: 1984-02-07
Abstract: ABSTRACT            SCREW PRESS FOR MECHANICALLY SEPARATING LIQUIDS FROM MIXTURES OF LIQUIDS AND SOLIDS     A screw press for extracting liquids from liquid-solid mixtures continuously and in a single operation. The press comprises a barrel divided into a feed section and a pin-barrel section.   A rotatable screw is disposed in the barrel.          Grooves are provided in the feed section to ensure a good feed input and hence an economical throughput, the pin-barrel section including radial pins extending into the barrel which, together with the rotation of the screw cause a high pressure to build up in the barrel thereby comminuting the mixture.          The screw has helical flights formed thereon, the flights defining ridges, radial bores being formed in the ridges which communicate with an axial bore formed in the screw permitting the draining away the extracted liquid directly from the region in which it is extracted.
Patent CA-1172975-A (CA)
Inventor: CLARK JIM W
IPC: E21B17/00
Filed: 1981-11-17
Granted: 1984-08-21
Abstract: ABSTRACT OF THE DISCLOSURE A protector for easy and quick installation on and removal from the threaded end of a pipe, such as well casing or tubing, when making up a string of well casing or tubing for insertion into a well bore.  The protector includes a tension belt constructed in a manner to resiliently bias the protector toward open position with the ends of the tension belt being interconnected by a latching device having an integral handle associated therewith with the tension belt being encapsulated by a resilient body to protect the threads of the pipe.  The latching device and associated handle structure is recessed into the body and related housing structure so that no components project beyond the periphery of the resilient body.  The handle structure includes a unique undercut portion enabling the finger or fingers to move the operating end of the handle outwardly of the body and also a hook structure for engagement over an inclined guy wire for gravity movement of the protector back to a point adjacent the pipe rack for attachment to a section of casing or tubing to be moved from the pipe rack into position for connection with a joint of casing already in the well bore.  The resilient body of the protector is constructed of a readily distinguishable color and provided with rounded corners to enable it to more easily slide over objects or obstructions.
Patent CA-1157469-A (CA)
Title: Process for the preparation of anthraquinone
Inventor: BENTE LYNN A
IPC: B01J23/00
Filed: 1981-12-01
Granted: 1983-11-22
Abstract: PROCESS FOR THE PREPARATION OF ANTHRAQUINONE                      ABSTRACT     A process for the preparation of anthraquinone from 1, 4, 4a, 5, 8, 8a, 9a, 10a-octahydroanthraquinone (OHAQ) which comprises contacting OHAQ as a melt with a catalyst.
Patent CA-1169104-A (CA)
Inventor: NEEDHAM RAYMOND
IPC: E21C35/18
Filed: 1981-12-08
Granted: 1984-06-12
Abstract: ABSTRACT TOOLS AND TOOL HOLDERS       A forward attack mineral  winning tool 1 releasably retained by a tool holder 2, has the tool 1 comprising a body member 3, a leading end thereof being provided with a full width,  hard material insert 5 capable of cutting clearance for the remainder of the tool 1,  a generally "V"-shaped mounting slot 6 provided in the body member 3 and defined  by  mutually  inclined  abutment  faces comprising a forward face 7 and an upward face 8, opposite, lateral sides of the slot 6 being defined by a pair of spaced apart cheeks 10, and aligned apertures 11 provided in each cheek 10, the tool holder 2 comprising a base portion 18 adapted to be welded to an outer edge 19 of a vane 20 of a spiral vane shearer drum and a male, generally "V"-shaped projection 23 also defined by mutually inclined abutment faces and located at a leading end 26 of the tool holder 2, with respect to the cutting direction 27, the projection 23 being provided with a through hole 29 also aligned, or generally aligned, with the aligned apertures 11 in the cheeks 10 of the tool 1, the aligned through hole 29 and apertures 11 receiving a common,  resilient latching means 30 comprising a central pin 31 surrounded by, and bonded to, resilient material 32.  The invention also includes a forward attack mineral cutter tool 1 comprising a body member 3, a leading end thereor being provided with a full width,  hard material insert 5 capable Or cutting clearance for the remainder of the tool 1, the insert 5 having an apex co-incident with a central plane of the tool, from which apex sidewalls 14 diverge, a generally "V"-shaped mounting slot 6 provided in the body member 3 and bounded by a pair of spaced apart cheeks 10 having aligned apertures 11.
Patent CA-1170175-A (CA)
Inventor: KRAJICEK RICHARD W
IPC: E21B43/24
Filed: 1981-12-08
Granted: 1984-07-03
Abstract: METHOD AND APPARATUS FOR PRODUCING A HIGH PRESSURE THERMAL VAPOR STREAM                         Abstract A method and apparatus for producing a high pressure thermal vapor stream of water vapor and-combustion gases for recovering heavy viscous petroleum from a subterranean formation, wherein the method includes directing high pres-sure combustion gases into a partially water-filled vapor generator vessel for producing therein a high pressure stream of water vapor and combustion gases, and thereafter injecting high quality steam into the high pressure stream of water vapor and combustion gases within the vapor gener-ator vessel to increase the steam-to-combustion gas ratio of the discharge stream produced within the vapor generator vessel, and thereafter flowing the discharge stream into a subterranean formation for enhanced recovery of viscous petroleum therefrom.
Patent CA-1193180-A (CA)
Inventor: MITSUMOTO TAKUO
IPC: B29C65/00
Filed: 1982-02-09
Granted: 1985-09-10
Abstract: IMPROVED PROCESS AND APPARATUS FOR PREPARING         LAMINATED HEAT-SHRINKABLE STRIP WITH        ELECTRIC CONDUCTOR WIRE EMBEDDED THEREIN      ABSTRACT OF THE DISCLOSURE    There are provided improved process and apparatus for preparing a laminated heat-shrinkable strip comprising upper and lower heat-shrinkable sheets fused together with an electric conductor wire sandwiched therebetween as means for covering and protecting joints of steel pipes of oil pipelines or cables.  The process comprises the steps of: subjecting successive sections of a starting strip with the sheets unfused, while said section are stationary, to a pressing operation, each operation consisting of simul-taneously prehot-pressing a first length which is slightly longer than half a predetermined length, hot-pressing a second length which is adjacent to said first length and which is the same or longer than said predetermined length, and cold-pressing a third length which is adjacent to said second length and which is slightly longer than half said predetermined length, and; shifting forward said starting strip by an amount corresponding to half said predetermined length after completion of each said pressing operation and before the start of each next pressing operation.  The apparatus comprises a prehot press, a main hot press and a cold press arranged in a series for carrying out the pressing operation and a conveyor system for the inter mittent shifting operation wherein a pair of looped teflon belts of a webbed pattern between which the starting strip is sandwiched, the strip being subjected to the pressures by the presses through the belts.
Patent CA-1186496-A (CA)
Inventor: VANCE MACY W
IPC: E04F13/04
Filed: 1982-02-17
Granted: 1985-05-07
Abstract: ABSTRACT      An anchor comprising a body of refractory material formed as a surface of revolution defined by rotation about an axis of a continuously arcuate, substantially sinuous line having convex protuberances at the end and midpoint thereof and concave recesses intermediate said protuberances, said anchor in operation being received in a generally cylindrical bore in a refractory base to an extent locating one of said concave recesses in said bore and the other of said concave recesses exteriorly of said bore, a body of cement filling said bore about said refractory body, and a layer of refractory material applied to the exterior of said refractory base in contiguous, surrounding relation to the portion of said refractory body that is exterior of said refractory base.
Patent CA-1173365-A (CA)
Inventor: FORBRIGER A WILLIAM JR
IPC: A61K8/46
Filed: 1982-02-25
Granted: 1984-08-28
Abstract: PERMANENT WAVE NEUTRALIZER            Abstract of the Invention This invention relates to a new permanent wave neutra-lizer and a method for permanently waving and styling hair.  The permanent wave neutralizer contains a sufficient amount of citric acid and optionally a salt of citric acid so as to provide a molar concentration of citric ion of at least 0.2 and a pH of be-tween 1.9 and 4Ø
Patent CA-1169920-A (CA)
Inventor: VIGNAUD RENE
IPC: H01M12/06
Filed: 1982-04-13
Granted: 1984-06-26
Abstract: Electrochemical generator comprising a thin gas electrode ABSTRACT OF THE DISCLOSURE       An electrochemical generator is provided, more especially a cell or battery of the metal/air type, com-prising a thin positive air electrode  forming cathode and having a shape such that it leaves available a space which it partially surrounds, a current collector associa-ted with this positive electrode, an anode mass disposed inside this positive electrode in said available space, a second current collector associated with this anode mass and possible a separator between said anode mass and said positive electrode, characterized in that said positive electrode has the  shape of a glove finger or bell.
Patent CA-1176298-A (CA)
Inventor: ROTHWELL HAROLD L JR
IPC: H01J61/073
Filed: 1982-04-30
Granted: 1984-10-16
Abstract: D23,356 DIRECT CURRENT OPERABLE ARC LAMP                                 ABSTRACT      A D.C. operable, miniature, low-wattage, single ended, arc discharge lamp. The cathode electrode includes electrical field modifying means to insure that the arc strikes between the electrode tips.  During high pressure ( ? 10 atm) operation electrode heating of the anode is dominated by electron bombardment, which creates substantially higher heat at the anode tip than at the cathode tip (the cathode being heated by ion bombardment and cooled by thermionic electron emission). Heat conducted down the anode electrode is dissipated in the single press and contributes to the heat conduction in the closely adjacent cathode electrode thereby reducing the net heat loss therein and helping to maintain the desired cathode temperature.
Patent CA-1167462-A (CA)
Title: Hexa- and octahydro-4,7-epoxyisobenzofuran-1-01 and hexa- and octahydro-5,8-epoxy-1h-2-benzopyran-3-01 and hexanhydro-4,7-epoxyisobenzofuran-1(3h)-one and 3a,4,7,7a-tetrahydro-4,7-epoxyisobenzofuran-1(3h)- one
Inventor: SPRAGUE PETER W
IPC: C07D491/18
Filed: 1982-06-30
Granted: 1984-05-15
Abstract: ABSTRACT New compounds having the formula wherein R3 is -?- or ; x is 0 or 1; and the dotted line is an optional double bond. These compounds are useful as cardio-vascular agents. They are also useful as intermediates in the preparation of compounds of the formula wherein R1 is hydrogen or lower alkyl; R2 is -CHO, -CH2OH or -CH=CH-R3-lower alkylene-CH3; R3 is keto or hydroxymethyl; and the dotted line is an optional double bond, which are themselves useful as cardiovascular agents.
Patent CA-1244682-A (CA)
Inventor: MEIBAUER ROBERT H
IPC: A61C15/00
Filed: 1982-07-12
Granted: 1988-11-15
Abstract: UNITED STATES PATENT APPLICATION            Of:  ROBERT H. MEIBAUER     For:  DENTAL PROPHYLAXIS DEVICE AND PROCESS     ABSTRACT OF THE DISCLOSURE           There is disclosed a dental prophylaxis device which may be electrically or battery powered and which comprises in combination a pair of spaced tynes disposed on a housing provided with an axial cavity, stationary support means on the housing in the vicinity of the base of the tynes and oscillating support means located on the housing between the bases of the tynes.  The oscillating support means is supported on a cylindri-cal sleeve disposed in the housing cavity and cooperates with an oscillating drive shaft powered by driving means located in a second housing to which the first mentioned housing is removably connectable,  A dental tape or floss having a non-elastic loop at one end which is supported on the oscillating support means and an elastic loop at the opposite end which is supported on the stationary support means spans the space between the ends of tynes and reciprocates between the tynes when the oscillating support means is in motion.         The process disclosed comprises contacting dentition surfaces with a dental tape or floss having a thread segment with a non-elastic loop at one end and an elastic loop at the oppo-site end, reciprocating the thread segment over the dentition surfaces while  expanding and contracting the elastic loop in response to the application of tensile force to the floss and absorbing the tensile force imparted thereto when it encounters resistance and the elastic loop expands.