baber/WOPTO huggingface dataset:
Patent DK-149513-C (DK)
Inventor: ANDREOLLA FLORIAN
IPC: F16J15/10
Filed: 1982-02-24
Granted: 1986-12-15
Abstract: 1. Flange- or screw-formed connection part with a bearing surface (2) having an annular groove (3; 3a) with a bottom which is circular (6) or flat (6a) in cross-section, in which groove an elastically yielding sealing ring (4; 4a) is disposed twenty to thirty-five percent of which by volume protrudes beyond the bearing surface (2), the diameter or the width and depth of the groove (3; 3a) being so dimensioned that the sealing ring (4; 4a) in its non-loaded state corresponds to the shape of the groove (3, 3a) and is for the most part closely surrounded by the groove wall (5) or the groove walls (5a), characterized in that - viewed in cross-section - the two wall-sections of the groove (3, 3a) ending towards the bearing surface (2) run parallel to one another and spaced from the sealing ring (4; 4a), so that two free spaces are formed between the ending wall-sections and the sealing ring (4, 4a).
Patent CA-1284309-C (CA)
Title: Electrodialytic recovery of mixed acids from mixed salts including fluoride anion
Inventor: CHLANDA FREDERICK P
IPC: C23G1/36
Filed: 1986-03-14
Granted: 1991-05-21
Abstract: ABSTRACT        RECOVERY OF MIXED ACIDS FROM MIXED SALTS A process for recovering concentrated mixed acids comprising HF from mixed salts at a high efficiency is disclosed   The process comprises the steps of providing an electrodialytic water splitter comprising at least one unit cell, each cell comprising a first compartment and a second compartment, feeding an aqueous solution comprising at least two salts formed from at least two different anions to the first compartment, one of said anions being fluoride, feeding a liquid comprising water to the second compartment, passing current through said electrodialytic water splitter to produce an aqueous product comprising mixed acids formed from the different anions in the second compartment, and an aqueous salt-containing product comprising a reduced concentration of said anions in the first compartment, and recovering aqueous products from the second compartment.  The process is particularly useful in the production of con-centrated HNO3 at unexpectedly high current efficien-cies, and has particular utility in the area of regen-erating stainless steel pickling acid mixtures com-prising HF and HNO3.
Patent CA-1285010-C (CA)
Title: Swivel pipe joint
Inventor: ANDERSON ROBERT W
IPC: F16L19/03
Filed: 1986-09-05
Granted: 1991-06-18
Abstract: ABSTRACT OF THE DISCLOSURE      A swivel joint between two lengths of pipe com-prises a male connecting piece on the end of one length of pipe and provided with a circumferential groove therearound housing a substantially annular split collet providing an abutment surface extending radially outwardly from the male connecting piece, and an externally threaded nut mounted on the male connecting piece the front face of which is adapted to react against the abutment surface on the split collet.  The joint further comprises a female connecting piece on the end of the other length of pipe the internal surface of which is threaded to receive therein the threaded nut and is recessed to receive therein, in bearing engagement, the split collet.  An annular seal reacts between opposed radially extending surfaces of the male and female connecting pieces to effect a radial seal between the two connecting pieces on screw-threaded, swivel interconnection thereof.
Patent CA-1276478-C (CA)
Title: Method for providing a cylindrical member with increased resistance to torsional stresses and a cylindrical member constructed in accordance with said method
Inventor: CHABRIER GILBERT
IPC: B29C53/80
Filed: 1986-11-12
Granted: 1990-11-20
Abstract: ABSTRACT OF THE DISCLOSURE         A cylindrical member (1) such as a trans-mission shaft is provided with high strength in torsion and light weight by means of a composite strip (2) wound helically around the cylindrical member under tension and in opposite directions (F1, F2) in succession.  The tension exerted on the strip is such that a winding (2a, 2c) formed in one direction (F1) exerts on the cylindrical member a torque which is equal and of opposite direction to the torque exerted by the winding (2b, 2d) formed in the opposite direction (F2).  The sum of these torques is at least equal to the maximum design torque to be exerted on the cylindrical member (1), thereby ensuring that the windings acting in opposition to the applied torque are never in compression and that the cylindrical member is under zero torsional stress.
Patent CA-1282171-C (CA)
Title: Banknote denomination reader system for the blind
Inventor: BRENNAN MELVYN
IPC: G07D7/128
Filed: 1986-12-05
Granted: 1991-03-26
Abstract: ABSTRACT            A system for indicating currency note denominations for the blind utilizing code marked notes and a hand-held device into which notes are inserted for reading.  A light source illuminates one side of a note and photosensors sense the transmitted light on the other side at the positions where the code markings are located.  The code is read, interpreted and a voice announcement is made by a voice synthesizer.
Patent CA-1279947-C (CA)
Title: Polymeric materials having controlled physical properties and processes for obtaining these
Inventor: BAUMAN BERNARD D
IPC: C08C19/14
Filed: 1987-01-28
Granted: 1991-02-05
Abstract: ABSTRACT OF THE DISCLOSURE    Ground polymeric elastomer or other polymeric plastic, particularly from recovered scrap, is surface modified by treatment with a gaseous mixture containing a minor amount of fluorine and a larger amount of at least one reactive gas in an inert gaseous carrier.  By the treatment the ground material is made more compatible for admixture with polyfunctional polymer-forming liquids, thereby obtaining novel composites of controlled physical properties.  The other reactive gas is preferably oxygen or one of the gases from the group consisting of:  chlorine and SO2 with or without added oxygen.
Patent CA-1297171-C (CA)
Title: Digital phase lock loop
Inventor: GAILBREATH SAMUEL H JR
IPC: H03L7/06
Filed: 1987-03-09
Granted: 1992-03-10
Abstract: Abstract A digital phase lock loop utilizing a programmable delay line to phase shift the output of a crystal generated reference clock signal and lock it to digitized data transi-tions recorded on a suitable medium is provided. The output of the delay line is compared to the digitized data transi-tions in a phase detector to determine if the delay line output leads or lags the data transitions. The delay line is then reprogrammed to reduce the phase difference between the data transition and the delay output to a minimum value.
Patent CA-1301392-C (CA)
Title: Resin composition which exhibits anistotropism when melted
Inventor: KANOE TOSHIO
IPC: C09K19/38
Filed: 1987-03-23
Granted: 1992-05-19
Abstract: ABSTRACT OF THE DISCLOSURE      A resin composition of the invention, exhibiting the anisotropism when melted, comprises (1) a resin having  rigid structure and exhibiting the anisotropism when melted and (2) a resin having a rigid structure portion and a soft structure portion, both resins having -been uniformly mixed with each other.
Patent CA-1277997-C (CA)
Title: Catalytic synthesis of olefins from paraffins
Inventor: WALKER HOWARD W
IPC: C07C5/52
Filed: 1987-04-28
Granted: 1990-12-18
Abstract: ABSTRACT CATALYTIC SYNTHESIS OF OLEFINS FROM PARAFFINS        Saturated hydrocarbon is transformed catalytically into olefinic hydrocarbon of corresponding skeletal configuration by reacting the saturated hydrocarbon with a suitable alkene cyclopentadienyl or alkene arene transition metal molecular complex, such as bis(ethylene)-pentamethylcyclopentadienyliridium, bis(ethylene)penta-methylcyclopentadienylrhodium and bis(ethylene)hexa-methylbenzene osmium in the presence of free alkene as hydrogen acceptor.  The reaction may be performed photochemically under irradiation with ultraviolet light or it may be performed thermolytically under application of heat.  The catalyst may be charged to the reaction as a preformed alkene cyclopentadienyl or alkene arene transition metal molecular complex or the catalyst may be formed in situ in the reaction mixture via displacement of ligand from a suitable transition metal complex containing the displaceable ligand, such as dicarbonylpentamethyl-cyclopentadienyliridium or cyclooctadienepentamethylcyclo-pentadienyliridium.
Patent CA-1282164-C (CA)
Inventor: GREENFIELD WALTER
IPC: G01N21/85
Filed: 1987-07-09
Granted: 1991-03-26
Abstract: ABSTRACT            A system for automated urinalysis, including subsystems for providing fluid flow and for acquiring and displaying an image.          The fluid flow subsystem pumps a portion of fluid sample from a sample container to a flow-through cell, where a thin planar portion of sample is presented for viewing.  The flow-through cell includes a three-part lamination, the two outer members being generally flat and the center members having a display chamber cut out of its central area.  The fluid system also includes means for washing the system between samples, by pumping a quantity of solvent (such as pure water) through the flow-through cell, the pump, and associated tubing.  A light beam is passed through the flow-through cell, enabling a video camera to acquire a magnified image of a portion of the sample, which image is displayed on a monitor.
Patent CA-1333042-C (CA)
Title: Capping layer for recrystallization process
Inventor: FEHLNER FRANCIS P
IPC: B32B5/18
Filed: 1987-08-19
Granted: 1994-11-15
Abstract: An improved method for crystallizing amorphous or polycrystalline material  is  disclosed,  which  method employs  a  novel  intermediate  product.   A  film  of material to be crystallized is formed on a substrate. A porous silica cap  is  formed over  the  film.   The resultant intermediate product is heated to melt the film which crystallizes upon cooling.  Gases generated during melting of the film escape through the porous cap  which  also  functions  to prevent  deleterious agglomeration of the material while it is in a molten state.
Patent CA-1319642-C (CA)
Title: Method for the guidance of board-shaped objects and the respective device for this purpose
Inventor: BLAESING HORST
IPC: C25D17/28
Filed: 1987-09-23
Granted: 1993-06-29
Abstract: ABSTRACT OF THE DISCLOSURE         The present invention provides a method for the guidance of board shaped objects to be electroplated into, through and out of a tank containing an electrolytic bath and means required for electrolysis, in which the board-shaped objects are transported to and introduced into tank in a hori-zontal position and then tilted around a horizontal axis, extending in the direction of transport until they are com-pletely immersed or at least in the area to be electroplated beneath the level of the bath, then transported through the electroplating area of the tank, tilted back to the horizontal position and finally moved out of the tank as well as a device for effecting the method.
Patent CA-1339604-C (CA)
Title: Synthetic intraocular lens swellable in swelling agent and a method for preparation thereof
Inventor: SULC JIRI
IPC: G02B1/04
Filed: 1987-12-03
Granted: 1997-12-30
Abstract: Synthetic intraocular lens swellable in swelling agent and a method for preparation thereof. The synthetic intraocular lens is swellable in physiologic saline which is made from a polymer or a copolymer, at least one component of which is hydrophylic and the other one may be hydrophobic, crosslinked or noncrosslinked, whereas the content of swelling agent in it is below the equilibrium state whereby its glass-transition temperature Tg is between -5°C and 45°C. The lens is deformed above Tg into a form suitable for surgical insertion, cooled below Tg, and stored and surgically applied at the temperature below Tg, and then relaxed in eye by postwelling and heating.  The lens may be incompletely swollen, instead in physiologic saline or water, in another physiologically harmless llquid, advantageously in glycerol.
Patent CA-1334184-C (CA)
Inventor: PODRINI MAURIZIO
IPC: C25D7/06
Filed: 1987-12-17
Granted: 1995-01-31
Abstract: Process  for  continuous  electrolytic  treatment  of  metals  which employs  treatment  units  comprising  pairs  of  vertical  cells characterized  by  the  fact  that  the  electrolyte  is  moved  in a controlled manner and in such a way as to ensure the desired electrolyte  flow-rate  values  and  constancy  of  such  values  in each cell employed for said treatment.
Patent CA-1300613-C (CA)
Title: Dihydro derivatives of ll-e33288 antibiotics
Inventor: LEE MAY D
IPC: C07H15/203
Filed: 1988-01-28
Granted: 1992-05-12
Abstract: 30,553 DIHYDRO DERIVATIVES OF     ABSTRACT OF THE INVENTION Dihydro derivatives  of  LL-E33288,  BBM-1075 FR-900405,  FR-900406,  PD 114759,  PD 115028,  CL-1577A, CL-1577B,   CL-1577D,   CL-1577E   and   CL-1724   anti-biotics/antitumor agents are disclosed and described, including the degradation product of LL-E33288 anti-biotics/antitumor   agents   dihydro-LL-E33288-pseudo-aglycone.
Patent CA-1283717-C (CA)
Title: Locking arrangement for a lamp socket assembly
Inventor: REEDY PATRICK J
IPC: F21V19/00
Filed: 1988-05-12
Granted: 1991-04-30
Abstract: LOCKING ARRANGEMENT FOR A LAMP SOCKET ASSEMBLY            Abstract of the Disclosure A lamp socket and housing combination in which a J-slot bayonet type connection is provided for maintaining the lamp socket within the housing and cooperating lock means are formed on the lamp socket and the housing for preventing the lamp socket from being released from the housing due to reverse rotation of the lamp socket.
Patent CA-1331198-C (CA)
Title: Process for the preparation of 4,4'-dinitrostilbene-2, 2'-disulfonic acid
Inventor: GUGLIELMETTI LEONARDO
IPC: C07C307/00
Filed: 1988-06-01
Granted: 1994-08-02
Abstract: Process for the preparation of 4,4'-dinitrostilbene-2,2'-disulfonic acid Abstract A process is described for the preparation of 4,4'-dinitrostilbene-2,2'-disulfonic acid by oxidation of 4-nitrotoluene-2-sulfonic acid by using liquid, anhydrous ammonia, a liquid alkyl derivative of ammonia or a mixture of ammonia and/or the alkyl derivatives of ammonia with water as the solvent.
Patent CA-1283742-C (CA)
Title: Subscriber line interface circuit and transformer therefor
Inventor: JAKAB GYULA
IPC: H04Q3/42
Filed: 1988-06-03
Granted: 1991-04-30
Abstract: SUBSCRIBER LINE INTERFACE CIRCUIT AND TRANSFORMER THEREFOR In a SLIC in which loop current is supplied via active circuits, feed resistances via which the active circuits are conventionally coupled to the line are constituted by bifilar resistance wire windings of a ferrite core transformer, which may include a third winding coupled to an input of the active circuits.
Patent CA-1307061-C (CA)
Title: Dispositif de visualisation a plusieurs ecrans plats escamotables
Inventor: BUISSON JEAN-MICHEL
IPC: G09F9/00
Filed: 1988-06-10
Granted: 1992-09-01
Abstract: DISPOSITIF DE VISUALISATION A PLUSIEURS ECRANS PLATS ESCAMOTABLES L'invention concerne un dispositif de visualisation qui comporte plusieurs écrans plats. L'invention réside dans le fait que le dispositif de visualisation comprend un boîtier 1 dont les côtés 2 et 3 constituent chacun une face de visualisation à écran plat qui est commandé par un même système de commande. En fonctionnement normal, le boîtier 1 est maintenu dans les glissières 9 et seul l'écran disposé sur le côté 2 est visible en mode secours, le boîtier est tiré hors des glissières 9 et bascule pour faire apparaître l'écran disposé sur le côté 3. L'invention est applicable aux tableaux de bord d'aéronefs. FIGURE 2.
Patent CA-1310827-C (CA)
Title: Apparatus for charging a melting gasifier with gasification media and sponge iron
Inventor: VULETIC BOGDAN
IPC: C21C5/52
Filed: 1988-07-12
Granted: 1992-12-01
Abstract: ABSTRACT   An apparatus for charging a melting gasifier (2) with gasification media and with sponge iron discharged from a direct reduction shaft furnace (1) arranged above the melting gasifier is described.  This comprises inlets and outlets in the lower part of the shaft furnace, connecting lines (4) in the form of downcomers between the shaft furnace and the gasifier in the upper region of the latter, symmetrically to the longitudinal axis of the shaft furnace and/or the gasifier and discharge means (7) for the sponge iron, such as screw conveyors or the like aligned radially to said longitudinal axis.  The connecting lines at least approximately vertically issue into the lowermost, substantially horizontal base region of the shaft furnace.  The discharge means are arranged at the melting gasifier inlets (9) in the discharge direction behind the connecting lines and the gasification medium inlet (3) is located in the longitudinal axis of the melting gasifier immediately adjacent to the sponge iron inlets.   The sponge iron and gasification medium inlets are preferably located within a melting gasifier dome (5).
Patent CA-1308856-C (CA)
Title: Process for the preparation of a polyolefin with a wide molecular massdistribution
Inventor: FRANKE RAINER
IPC: C08F2/38
Filed: 1988-07-15
Granted: 1992-10-13
Abstract: Abstract of the disclosure:            Process for the preparation of a polyolefin with a wide molecular mass distribution A two-stage polymerization process using a modified supported catalyst gives ethylene polymers with very good processability and excellent finished component proper-ties.  The supported catalyst used is formed by reaction of a magnesium alcoholate with a titanium-IV compound in suspension and subsequent reaction with a halogen-containing organoaluminum compound and activation of the solid thus obtained by an aluminum trialkyl or aluminum isoprenyl.
Patent CA-1283578-C (CA)
Inventor: PAUGH JAMES J JR
IPC: F16B21/00
Filed: 1988-10-18
Granted: 1991-04-30
Abstract: ABSTRACT           A pump (10) has a housing (11) formed with a chamber (29), a spindle (12) extending through the chamber and mounted for rotation in bearings, and an impeller (14) mounted on the spindle for rotation therewith.  The impeller consists of two parts (15,16) having facing surfaces (17,18), the surfaces being accurately formed with open channels (19,20) and the two parts being connected by a joint (21), so that the channels combine to form passages (22).  The joint is formed by pegs(23) extending through bores (38,39) in the two parts, the pegs secured by an electrom beam weld (24).    A method of forming an accurate internal passage in a pump element, includes the steps of forming (31) the element in two parts having accurately-formed channels in facing surfaces, providing (33) congruent pairs of bores through the two parts, inserting (35) a beveled peg through each congruent pair of bores to form an annular groove between each bore and a corresponding end of the respective bore, and forming (37) a weld in the said groove by use of an electron beam.
Patent CA-1327986-C (CA)
Inventor: SIMPSON HAROLD
IPC: E05D15/22
Filed: 1988-11-18
Granted: 1994-03-22
Abstract: ABSTRACT OF THE DISCLOSURE    A pre-assembled latch for mounting externally on the header of a pivotal sash window of a double-hung sash window assembly.  The latch includes a housing having a spring-biased latch bolt normally providing a protruding bevelled formation for engaging a guide rail of the window assembly.          The housing has depending spring clip means integral there-with for retaining the latch bolt operably assembled in the housing and the latch bolt has means cooperating with the housing for retaining the spring means in biasing associa-tion with the latch bolt.
Patent CA-1329580-C (CA)
Inventor: CHU POCHEN
IPC: C10G11/04
Filed: 1988-12-19
Granted: 1994-05-17
Abstract: ABSTRACT                    CATALYTIC CRACKING CATALYSTS    FOR METALS LADEN FEEDS          The invention describes the preparation of novel cracking catalysts by surface coating conventional cracking catalysts with passivators that act as metals traps.  The catalysts are useful for cracking of heavy hydrocarbon feedstocks which contain metal poisons such as nickel and vanadium.
Patent CA-1325029-C (CA)
Inventor: HEYMANN FRANK J
IPC: F01D9/06
Filed: 1989-02-15
Granted: 1993-12-07
Abstract: ABSTRACT OF THE DISCLOSURE           A bell seal unit and retaining nut for use in the nozzle chamber unit of an elastic fluid turbine,  such as the steam turbine used to drive electrical utility genera-tors.  The bell seal unit includes a radial flange with an end face sealing surface and a skirt portion with a lower skirt margin subdivided into a labryinth seal region and a guiding and wear resisting  region.   The  labryinth  seal region includes plural,  spaced apart circumferential seal lands  and grooves,  and the  guiding  and wear  resisting region includes plural axial lands and grooves.  The bell seal unit is positioned for free but limited axial movement by a retaining nut which includes a smooth inner cylindri-cal surface, a shoulder surface and a lower flange surface.          Plural slots extend between the shoulder and flange surfac-es to facilitate fluid flow to the lower surface of the bell seal radial flange.
Patent CA-1310799-C (CA)
Title: Tube cleaning apparatus
Inventor: VOWLES ROBERT W
IPC: B08B9/04
Filed: 1989-04-03
Granted: 1992-12-01
Abstract: ABSTRACT       A projectile launcher is disclosed and claimed adapted for use in apparatus for cleaning tubes arranged in an array such as with heat exchanger tube bundles, the apparatus being of the type whereby a projectile (1) is placed in a tube (10) to be cleaned and then subjected to a sudden cleaning medium pressure impact to force the projectile (1) through the tube (10) at high speed, the launcher for such projectiles having a barrel (3) that is aligned with the tube to be cleaned, a magazine (2) for feeding serially projectiles (1) into the barrel (3), a duct (4) for supplying cleaning medium being movable through the barrel (3) to push a projectile (1) into the tubs (11) to be cleaned, and means for supplying a pulse of cleaning medium along the aforesaid duct (4) once a projectile is positioned in the tube to be cleaned, the barrel (3) and the cleaning medium duct (4) being selectably removable from the launcher to be replaced with similar barrels and cleaning diameters without loss of any operating fluids from the launcher.
Patent CA-1323474-C (CA)
Inventor: HILDENBRAND KARLHEINZ
IPC: B01D71/54
Filed: 1989-04-05
Granted: 1993-10-26
Abstract: Composite membranes, processes for their preparation and their use A b s t r a c t Composite membranes of a macroporous filler-containing membrane of at least two incompatible polymers and a pore-free polyurethane membrane applied there to exhibit an improved action in the removal of benzenes optionally substituted by lower alkyl radicals, hydroxyl, chlorine or bromine from their mixtures with aliphatic and/or cycloaliphatic hydrocarbons, alcohols, ethers, ketones and/or carboxylic acid esters or from effluent.     Le A 26 021 - Foreign countries
Patent CA-1286001-C (CA)
Inventor: WOLFE EDWARD L
IPC: H01L29/812
Filed: 1989-04-19
Granted: 1991-07-09
Abstract: ABSTRACT OF THE DISCLOSURE         Differentially-connected pairs of JFETs on an IC chip are protected from ESD events by connecting re-spective discharge control resistors to the drains of the JFETs in such a manner as to be in series with any flow of current through either JFET.