baber/WOPTO huggingface dataset:
Patent CA-1184809-A (CA)
Inventor: BLANCHARD GARY N
IPC: B21D55/00
Filed: 1982-02-04
Granted: 1985-04-02
Abstract: ABSTRACT      A safety control system for a metal forming machine having a vertically moving forming ram which cooperates with a stationary forming die for forming a variety of creases in sheet metal manipulated by an operator.  The safety control system returns the forming ram to an in-active position in the event the operator inadvertently positions tool or limb between ram and die during machine operation.
Patent CA-1169739-A (CA)
Inventor: LAMARCHE PAUL E
IPC: F16F15/123
Filed: 1982-02-08
Granted: 1984-06-26
Abstract: EXTENDED TRAVEL DAMPER IN A LOCK-UP CLUTCH           FOR  A TORQUE CONVERTER            Abstract:      An extended travel vibration damper (10) for a lock-up clutch. utilized in a torque converter where both the clutch friction surfaces and the damper structure are located radially outwardly in the torque converter housing (14), with the damper being formed of a plurality of annular members with damper springs to provide a compact structure where there is limited space in the torque converter.
Patent CA-1211458-A (CA)
Inventor: VICK STEVEN C
IPC: C07F7/10
Filed: 1982-03-31
Granted: 1986-09-16
Abstract: ABSTRACT OF THE DISCLOSURE        Novel compounds of the formula   wherein, X is either OR on N(R)2 where R is an alkyl group of from one to eight carbon atoms.  The processes obtaining these novel compounds are relatively simple and allow for isolation of the desired compounds by conventional techniques.  The novel compounds are useful as analytical tools, as coupling agents and in organic synthesis.
Patent CA-1183197-A (CA)
Inventor: NELSON ALFRED M
IPC: G03G15/14
Filed: 1982-04-07
Granted: 1985-02-26
Abstract: APPARATUS FOR PREVENTING REMOVAL OF TONER                FROM TRANSFER IMAGES                       Abstract In a magnetographic printing system capable of transferring charged toner particles from a toner-carrying medium (e.g., magnetic tape) to a surface of a toner receiving medium (e.g., the front surface of a sheet of paper), apparatus is provided for preventing disturbance of the transferred particles on the surface of the paper when the toner-carrying medium is moved into contact with and away from said surface.  The apparatus comprises an electrode arrangement disposed proximate to a rear surface of the paper opposite the transferred particles on the front surface.  In response to an applied signal having a predetermined polarity (e.g., opposite to that of the transferred particles) an electric field is created by the electrode arrangement which restrains the transferred particles from leaving the front surface, thus substan-tially preventing their disturbance by the toner-carrying medium and their removal from the paper.
Patent CA-1196358-A (CA)
Title: Window lock
Inventor: ANDERSON DONALD L
IPC: E05C5/00
Filed: 1982-05-05
Granted: 1985-11-05
Abstract: ABSTRACT OF THE DISCLOSURE         A window lock operable in association with either a right-hand or left-hand casement window having a cam movable to either one of two different lock positions relative to a keeper mounted on a window sash.  One lock position is operative when the window lock is used with a right-hand casement window and the other lock position is operative when the window lock is used with a left-hand casement window.  The movement of the cam is effected by a handle connected thereto by structure including connection means providing a mechanical advantage in movement of the cam by the handle.
Patent CA-1159891-A (CA)
Inventor: STANLEY MICHAEL R
IPC: G03G15/08
Filed: 1982-05-18
Granted: 1984-01-03
Abstract: ABSTRACT OF THE DISCLOSURE   An apparatus which reduces the scattering of charged particles from a housing storing a supply thereof in a reproducing machine comprising a member having a voltage level formed on a portion thereof. A particle holder is electrically biased to a voltage level different than that of the member. In this way, an electrical field is formed between the member and the particle holder which repels or attracts the charged particles therefrom. The particle holder is readily removable from the reproducing machine so as to facilitate the periodic cleaning of charged particles therefrom.
Patent CA-1201371-A (CA)
Inventor: CARL HEINZ
IPC: B32B15/08
Filed: 1982-06-24
Granted: 1986-03-04
Abstract: Abstract of the Disclosure Described is a compound material which is of simple con-struction, can be manufactured at low cost and is suitable for universal employ. The compound material consists of a carrying framework in the form of a grid structure 1 and a plastic sheet 2 affixed thereto. In an advantageous embodiment as shown in fig. 4, the grid structure 1 con-sists of a metal grid enclosed between plastic sheets 2a and 2b shrunk thereonto Between one side of the grid structure 1 and the respective plastic sheet 2a there is interposed a mesh structure 3 for strengthening the sheet and protecting it against penetration.
Patent CA-1234241-A (CA)
Title: Resin-forming material, implant material and compositions for restorative material suitable for medical or dental use
Inventor: KAWAHARA HARUYUKI
IPC: C07C69/52
Filed: 1982-07-05
Granted: 1988-03-15
Abstract: Resin-forming material suitable for medical or dental use comprising tetramethylolmethane tri- or tetracrylate or tetramethylolmethane tri- or tetramethacrylate; and implant material suitable for medical or dental use comprising nitride of at least one member of metal selected from the group consisting of Group IVB, Group VB and Group VIB in the periodic table of elements and boron, aluminum and silicon and having Mohs' scale of hardness of at least 7.
Patent CA-1198290-A (CA)
Inventor: SAN LORENZO DANIEL M
IPC: C01G9/06
Filed: 1982-07-23
Granted: 1985-12-24
Abstract: ABSTRACT           The present invention relates to a process for the production of either electrolytic zinc or high purity zinc salts from secondary zinc raw materials, comprising: leaching the raw material in a slightly acid aqueous solution at controlled pH; separating the reaction mixture into a leaching liquor containing the leached zinc and a solid residue, which after suitable washing is discarded; directing the zinc-bearing liquor to a solvent extraction facility where it is brought into contact with an organic solution containing organic acids as cationic extraction reagents, by means of which, an ion exchange of zinc by hydrogen ions is achieved, resulting in a zinc loaded organic solution and in an aqueous solution containing the stoichio-metric acidity to the extracted zinc; recycling the acid aqueous raffinate to the previous leaching step where it is used as the slightly acid aqueous solution to carry-out the zinc leaching from the raw material; sending the zinc organic extract to a stripping facility where it is brought into contact with a strong acid solution of zinc sulphate, by means of which an ion exchange of zinc by hydrogen ions takes place, thus producing a concentrated solution of zinc sulphate and an organic solution free of zinc, containing the stoichiometric acidity to the stripped zinc, which is recycled back to the previous step to perform the zinc extraction; directing the concentrated zinc sulphate aqueous solution either to an electrowinning facility to produce electrolytic zinc, or to a crystallization plant for the production of pure zinc sulphate; recycling back to the previous step of zinc stripping either the spent electrolyte from the electrowinning facility or the mother liquors from the crystallization plant to form, after suitable sulphuric acid make-up, the strong acid solution of zinc sulphate, by means of which zinc stripping from the organic extract is achieved.
Patent CA-1183353-A (CA)
Inventor: SOMERVILLE GRANT
IPC: D21B1/14
Filed: 1982-08-09
Granted: 1985-03-05
Abstract: ABSTRACT There is provided a method of constructing a pulpstone with an internal grinding surface, unique grinding segments for use with the method, and the finished pulpstone.  A plurality of grinding segments is placed around a form whose outside surface substantially corresponds to the desired internal grinding surface, and the segments are secured in place against the form.  An envelope member which may be in the form of a steel sleeve is placed around the segments, and the segments are bonded to the envelope member.  Thereafter, the form is removed from within the segments.  Preferably, the segments are secured in place around the form by the use of steel bands or like elements.
Patent CA-1188642-A (CA)
Inventor: RITTS ROY E JR
IPC: C12P21/08
Filed: 1982-08-10
Granted: 1985-06-11
Abstract: Human Nonsecretory Plasmacytoid Cell Line Abstract A human non-secretory plasmacytoid continuous cell line, established for five years in more than 150 passages, is karyotypically normal, easily grown and has the characteristic features of a plasmablast excepting for its secretory defect, and can be used for the preparation of human-human hybridomas with human B-lymphocytes and separation of the resulting hybridomas from the plasmacytoma cell line by growth in C02-containing media, or by fluorescence activated cell sorting, or both.
Patent CA-1186215-A (CA)
Inventor: RATHBURN LLOYD C
IPC: E21B31/12
Filed: 1982-10-05
Granted: 1985-04-30
Abstract: ABSTRACT OF THE DISCLOSURE    In accordance with an illustrative embodiment of the present invention, a releasing and retrieving apparatus for a pack-off tool used in pipe testing operations includes a tubular body having slots in the walls thereof, each slot having an inclined surface at its lower end, elongated gripping members carried in each slot and being movable longitudinally and laterally with respect thereto, a first coil spring urging said gripping members downwardly to cause the lower end portions thereof to be moved inwardly by said inclined surfaces to gripping position, and a second coil spring urging the central regions of said gripping members outwardly so that inward pressure on the respective upper end portions thereof can be employed to pivot the gripping members about said central regions and cause outward movement of said lower end portions to a released position.
Patent CA-1201480-A (CA)
Inventor: CLACK ROBERT A
IPC: G01R27/22
Filed: 1982-10-21
Granted: 1986-03-04
Abstract: LIQUID CONDUCTIVITY MONITOR     Robert A. Clack Abstract of the Disclosure A liquid conductivity monitoring device includes an elongated cylindrical housing having parallel-spaced electrodes at one end for insertion into a liquid carrying conduit, and a transparent user-viewable lens at its other end.  The electrodes are connected within the housing to a differential amplifier which provides a change in output signal level when the liquid conductivity exceeds a predeter-mined threshold level.  A pair of oppositely-poled LED's of different colors connected between respective unidirectional current sources and the output of the differential amplifier and viewable through the lens indicate acceptable and un-acceptable conductivity levels to the user.
Patent CA-1190557-A (CA)
Inventor: KLEINER HANS-JERG
IPC: C07F9/32
Filed: 1982-11-19
Granted: 1985-07-16
Abstract: Abstract of the disclosure:     Monoalkyl phosphonites are prepared by the esterification of phosphonous acids with alcohols at temperatures of about 125 to about 220°C, preferably of about 130 to about 180°C.
Patent CA-1161693-A (CA)
Inventor: ARCHIBALD G KENT
IPC: F04B43/02
Filed: 1983-02-14
Granted: 1984-02-07
Abstract: ABSTRACT OF THE DISCLOSURE           The present invention provides an integral disposable pumping chamber through which fluid is pumped from an inlet to an outlet, the integral disposable pumping chamber compris-ing a first portion of flexible plastic material and a second portion forming a sealed main flow passage therebetween which extends between the inlet and the outlet and a flange general-ly surrounding the main flow passage, wherein the sealed main flow passage includes a first flexible rolling diaphragm pump-ing chamber and a second flexible rolling diaphragm pumping chamber, wherein the second flexible rolling diaphragm pumping chamber is positioned between the first flexible rolling dia-phragm pumping chamber and the outlet, wherein the first por-tion of flexible plastic material has a first flexible rolling diaphragm extending outward from the flange to form a portion of the first flexible rolling diaphragm pumping chamber, and wherein the first portion has a second flexible rolling diaphragm extending outward from the flange to form a portion of the second flexible rolling diaphragm pumping chamber.
Patent CA-1193392-A (CA)
Inventor: HARRELL LEON L JR
IPC: C08G59/50
Filed: 1982-12-23
Granted: 1985-09-10
Abstract: ABSTRACT           Elastomeric ethylene/acrylic or vinyl ester/ glycidyl(meth)acrylate copolymers, optionally containing carbon monoxide moieties, are cured with piperazinium diphenoxide salts, e.g. piperazinium di-(2-chloro-4-nitrophenoxide).
Patent CA-1209165-A (CA)
Inventor: KUNICK PAUL A BANNATYNE AVENUE
IPC: A63B67/14
Filed: 1983-02-24
Granted: 1986-08-05
Abstract: FLOOR HOCKEY PUCK            ABSTRACT OF THE DISCLOSURE    A floor hockey puck is formed of two separate materials, the first being harder, less compressible and more dense than the second so as to provide mass and strength to the puck.  The second material is softer and more resilient than the first so as to provide the resi-lience necessary for the proper handle of the puck and also to reduce bodily harm on contact with players.  The two separate materials may be arranged in layers through the body of the puck.
Patent CA-1188563-A (CA)
Inventor: MATTHEWS BERNARD T
IPC: A22C21/00
Filed: 1983-02-24
Granted: 1985-06-11
Abstract: Abstract of the Disclosure A meat based product is extruded as an elongate billet from the head of a mandrel.  The mandrel has inner and outer passages to dispense a meat core and a fat annular coating. The product comprises an outer casing of plastics dispensed from the mandrel on to the product as it emerges from the extrusion head.
Patent CA-1253882-A (CA)
Inventor: ONOPCHENKO ANATOLI
IPC: C07C225/22
Filed: 1983-03-14
Granted: 1989-05-09
Abstract: NOVEL DINITROBENZOPHENONE SOLUTION AND PROCESS FOR PREPARING AN ETHER SOLUTION OF       DIAMINOBENZOPHENONES THEREFROM                  Abstract of the Disclosure A novel ether solution of dinitrobenzophenone and  a  process  for  preparing  an  ether  solution  of diaminobenzophenone therefrom which comprises subjecting a dinitrobenzophenone dissolved in said ether solvent to hydrogenation  in  contact  with  a  continuous  nickel catalyst to obtain said solution of diaminobenzophenone dissolved in said ether solvent.  In a specific embodi-ment said nickel catalyst is mounted on an inert support. In a still further embodiment, said diaminobenzophenone dissolved in said ether solvent, after removal of water therefrom,  is reacted with an aromatic dianhydride to obtain  a polyamic  acid solution.   The polyamic  acid solution can be heated at a temperature above 100°C. to drive off water of cyclization and thereby obtain the corresponding polyimide resin.
Patent CA-1190703-A (CA)
Inventor: L ESPERANCE FRANCIS A
IPC: G02C7/04
Filed: 1983-04-13
Granted: 1985-07-23
Abstract: BIFOCAL INTRAOCULAR LENS STRUCTURE     ABSTRACT OF THE DISCLOSURE     The invention contemplates structure for surgical implantation within an eye and providing the user with more than one focal length, for viewing at correspondingly different object ranges.          In the embodiments disclosed, one intraocular device is relatively fixed in the eye to provide a conven-tionally available viewing range, for example, distance viewing, and another lens element is movably mounted with respect to the fixed distance-viewing lens in such manner as to provide its selective use in com-bination with the fixed lens, for close-object viewing.
Patent CA-1193730-A (CA)
Inventor: SLUIJTER ROBERT J
IPC: G10L25/93
Filed: 1983-04-20
Granted: 1985-09-17
Abstract: ABSTRACT              Speech analysis system in which segments of digitized speech are transformed into amplitude spectrums. For the voiced/unvoiced are  decision use is made of the peak value or spectral intensity in each amplitude spectrum. Basically  a voiced decision is made when the spectral intensity increases monotonically over several segments by more than a given factor. An unvoiced decision is made if the spectral intensity drops below a given fraction of the maximum spectral intensity in the current voiced period. Refinements in the decisions are made by the use of  fixed and adaptive thresholds. This system is intend to  be used in vocoders.
Patent CA-1203657-A (CA)
Inventor: MAANSSON BJOERN
IPC: B27N3/02
Filed: 1983-05-05
Granted: 1986-04-29
Abstract: ABSTRACT OF THE DISCLOSURE           A method for the production of particleboards by addi-tion of a formaldehyde absorbing agent, a hydrophobing agent and a curable formaldehyde based glue to wood based particles, shaping of the particle mass and subsequent curing of the glue by applica-tion of pressure and heat.  The quality of the board is improved by keeping the hydrophobing agent heated above its melting temper-ature in the presence of the particles before the gluing.
Patent CA-1205764-A (CA)
Inventor: INOUYE MASAYORI
IPC: C12N15/62
Filed: 1983-05-13
Granted: 1986-06-10
Abstract: Abstract The invention relates to a novel class of plasmid cloning vehicles which include a DNA sequence coding for the desired polypeptide linked for tran-scriptional expression in reading phase with one or more functional fragments derived from an outer membrane protein gene of a gram-negative bacterium.  The plasmids also include an inducible promoter sequence positioned in the proper orientation for transcriptional expression of the desired polypeptide, as well as a separate DNA sequence coding for a repressor protein which can interact with the inducible promoter to prevent tran-scription therefrom.  The repressor protein can be selectively inactivated by means of an inducer molecule to permit transcriptional expression of the desired polypeptide.  Such plasmids may be used to introduce genetic capability into micro-organisms for the pro-duction of proteins, such as medically or commercially useful hormones, enzymes, immunogenic proteins, or intermediates therefor, but only in the presence of an appropriate inducer.
Patent CA-1243439-A (CA)
Inventor: LENNEY WILLIAM E
IPC: C08F220/10
Filed: 1983-08-09
Granted: 1988-10-18
Abstract: PRESSURE SENSITIVE ADHESIVES                 Abstract of the Disclosure This invention relates to an improved pressure sensitive adhesive comprising a polymer system which has excellent tack, peel and shear adhesion strengths.  The improvement resides in the polymer, with the polymer system being formed by emulsion polymerizing an unsaturated ester, an unsaturated carboxylic acid and a polyfunctional monomer in the presence of a stabilizer system comprising an ethoxylated acetylenic tertiary glycol and polyvinyl alcohol.
Patent CA-1218322-A (CA)
Inventor: GARG DIWAKAR
IPC: C10G1/08
Filed: 1983-08-12
Granted: 1987-02-24
Abstract: ABSTRACT      A process for the liquefaction of carbonaceous material, such as coal, is set forth wherein coal is liquefied in a catalytic solvent refining reaction wherein an activated zinc sulfide catalyst is utilized which is activated by hydrogenation in a coal derived process solvent in the absence of coal.
Patent CA-1205238-A (CA)
Title: Delustering coating composition excellent in abrasion   resistance
Inventor: KISHIDA KAZUO
IPC: C08J7/054
Filed: 1983-08-26
Granted: 1986-05-27
Abstract: DELUSTERING COATING COMPOSITION EXCELLENT           IN ABRASION RESISTANCE     ABSTRACT OF THE DISCLOSURE     A coating composition curable by an activation energy ray, which comprises (a) 100 parts by weight of a monomer mixture (A) comprising at least 30% by weight of a compound having at least 3 acryloyloxy and/or methacryloyloxy groups in the molecule and up to 70% by weight of a compound having 1 to 2 a,.beta.-ethylenically unsaturated bonds in the molecule, (b) 0.01 to 6.0 parts by weight of at least one photosensitizer and (c) 0.5 to 30 parts by weight of an emulsion type crosslinked polymer or copolymer of a reactive monomer having one .alpha.,.beta.-ethylenically unsaturated bond in the molecule and a reactive monomer having at least two .alpha.,.beta.-ethylenically unsaturated bonds in the molecule.
Patent CA-1197751-A (CA)
Inventor: PARSONS ROBERT L
IPC: A61M27/00
Filed: 1983-09-01
Granted: 1985-12-10
Abstract: DRAINAGE CONTROL METHOD AND APPARATUS            Abstract of the Disclosure A drainage control valve apparatus utilizes a pressure relief valve for opening upon a predetermined fluid Pressure being applied thereto and a liquid column is used for hold-ing the pressure relief valve open by the weight of the liquid column escaping past the pressure relief valve to apply a negative pressure to the back of a pressure relief valve element.  A small opening or a check valve releases the suction column when drainage is complete to allow the pressure relief valve to close.  The pressure relief valve may be a spring biased valve and may be adjusted by varying the compression on the spring.  The unit may be attached to a patient's leg with a strap.  A method of draining a bladder is provided having the steps of opening a pressure relief valve under bladder pressure in a catheter, holding the pressure relief valve open with the suction of a column of liquid formed by the liquid passing the opened pressure re-lief valve and releasing the pressure relief valve when drainage is substantially complete.
Patent CA-1211075-A (CA)
Inventor: WITHERS JAMES C
IPC: C25C3/12
Filed: 1983-09-01
Granted: 1986-09-09
Abstract: ABSTRACT OF THE DISCLOSURE           There  is described an apparatus  for the electrolytic production of aluminum.   The apparatus includes an anode body comprising a mixture of an oxygen-containing compound of aluminum and an electrically conductive reducing agent.  The anode body includes at least a portion adapted to be immersed in an appropriate electrolyte, with at least one active surface of the portion adapted to be positioned in opposed relationship to but spaced from the surface of a cathode for providing an active anode surface at which the metal oxide may be converted to metal ions recoverable as molten metal at the opposing surface of the cathode.  The apparatus further includes a conductor of higher electrical conductivity than the anodic mixture in physical contact with the anode body, the conductor being adapted to conduct substantially the entire anodic current to the immersible portion of the anode body when connected to a source of electrical power. The conductor extends through the anode body mixture and has an end positioned at least approximately adjacent the active surface of the anode body for transmitting anodic current directly from the conductor to at least the mixture adjacent the end of the conductor and to the active surface thereby providing a short, low resistance current path through the mixture to the surface.  The conductor itself comprises at least one member adapted during the electrolytic production of aluminum to leave the end position of the conductor relative to the active surface substantially unchanged as the anodic mixture at the surface is consumed in the electrolytic process.