baber/WOPTO huggingface dataset:
Patent CA-1048540-A (CA)
Title: 4-chloro-5-oxo-hexanoic acid nitrile, 6-chloro-5-oxo-hexanoic acid nitrile and process for their manufacture
Inventor: MEIDERT HELMUT
IPC: C07C67/00
Filed: 1975-05-13
Granted: 1979-02-13
Abstract: 4-CHLORO-5-OXO-HEXANOIC ACID NITRILE, AND PROCESS FOR THEIR MANUFACTURE            Abstract of the disclosure:            The compounds 4-chloro-5-oxo-hexanoic acid nitrile and 6-chloro-5-oxo-hexanoic acid nitrile are prepared by chlori-nating 5-oxo-hexanoic acid nitrile in an aqueous 20 to 40% solution at temperatures of from 25 to 55°C,  separating the precipitating oily second phase and submitting it to distil-lation.  Said compounds are valuable starting products for preparing ?- or .epsilon. -amino acids and important synthesis pro-ducts for preparing heterocyclic compounds.
Patent CA-1051404-A (CA)
Title: Roadway markers
Inventor: SCHAEFER HOWARD A
IPC: G02B5/126
Filed: 1975-07-31
Granted: 1979-03-27
Abstract: ABSTRACT OF THE DISCLOSURE         A roadway marker includes an internally dished-out glass body wherein the top wall of the internal cavity is inversely dome shaped to minimize the height of the marker while maximizing its thickness.  The marker may be non-reflective or it may contain a retroreflective optical system.
Patent CA-1061285-A (CA)
Title: Electrolytically increasing sulfuric acid concentration in presence of chlorine containing oxidizing agent
Inventor: CLARKE E COLIN W
IPC: C01B17/88
Filed: 1975-09-25
Granted: 1979-08-28
Abstract: ABSTRACT          An improved method and apparatus for reducing the content of water in aqueous sulfuric acid solutions by electrolysis is provided wherein a sufficient amount of a chlorine containing oxidizing agent is provided in the solution in the vicinity of the cathode to prevent the build-up of sulfur deposits thereon. In an inte-grated system, drying of a wet fluid stream on a con-tinuous basis is effected by contacting it with concen-trated sulfuric acid and purifying and recycling the sulfuric acid by the method of this invention, only a small inventory of the sulfuric acid being required.
Patent CA-1042533-A (CA)
Inventor: STIDHAM JAMES R
IPC: H04Q11/04
Filed: 1975-11-26
Granted: 1978-11-14
Abstract: AUTOMATIC GAIN COMPENSATION IN TIME DIVISION                  SWITCHING SYSTEM                  Abstract of the Disclosure Port circuits in a time division switching system that have their outputs connected to a common summing bus by respective summing resistors have their output signals attenuated when the conversation is among port circuits on the same bus:  the simultaneous closure of the respective time slot switches causes the summing resistor of one port to shunt the output from the other port.  However, when the connection involves port circuits served by different summing buses, there is usually sufficient isolation between the buses to mask the shunting effect.  The present disclosure shows an arrangement for selectively adding a compensating amplifier and an attenuating resistor to each distribution bus.  When the call involves port circuits served by the same summing and distribution bus pair the amplifier completely compensates for all attenuation.  When the call involves ports served by a different summing and distribution bus pair, there is no input shunting to reduce gain but now a pair of compensating amplifiers are involved and their input attenuating resistors are in shunt to ground reducing the gain to the normal level.
Patent CA-1055060-A (CA)
Inventor: WEIGL ERWIN
IPC: A63C7/10
Filed: 1975-12-18
Granted: 1979-05-22
Abstract: RUN-AWAY PREVENTING DEVICE FOR SKIS                ABSTRACT OF THE DISCLOSURE    Run-away preventing device for skis.  A pair of prongs are pivotally mounted at each side of a ski for alternately occupy-ing an inactive position alongside of and parallel with the ski or an active position projecting downwardly from the ski.  A generally U-shaped member is connected to said prongs and lies against the upper surface of the ski and under the ski boot when the latter is in position on the ski.  Said U-shaped member is so arranged as to be subjected to tension when pressed down against the ski by the ski boot with such tension being relieved when same is permitted by removal of the ski boot to spring up away from the ski and move said prongs into the above-mentioned active position.  Said generally U-shaped member and the prongs connected thereto comprise only a single movable part and hence combine a minimum of parts with a maximum of reliability.
Patent CA-1054321-A (CA)
Inventor: SHOKITE RICHARD J
IPC: B29C51/08
Filed: 1976-01-13
Granted: 1979-05-15
Abstract: MOLDING APPARATUS AND METHOD     Abstract Of The Disclosure A method and apparatus for molding thermosetting and thermoplastic materials, particularly components of brassiere cups, enabling precise molding with a high degree of flexibility and control in the molding conditions of temperature, pressure and molding time.  Two modes of molding are disclosed; a first mode in which the material is first clamped to the mold prior to conforming the medial portion of the mold to the mold blank; and a second mode in which the material is accommodated in the mold blank followed by clamping of the margins of the material.
Patent CA-1058585-A (CA)
Inventor: KNUDSEN DAVID S
IPC: B65B51/08
Filed: 1976-02-17
Granted: 1979-07-17
Abstract: Abstract of the Disclosure A tying machine for tying articles of various sizes utilizing a twist-tie ribbon. The tying machine may be quickly adjusted to control the length of the tying ribbon that is metered out by the machine and to center the article to be tied at the tying station in accordance with the size or diameter of the article to be tied.
Patent CA-1063398-A (CA)
Inventor: HAWK ROBERT M
IPC: G02B6/36
Filed: 1976-03-05
Granted: 1979-10-02
Abstract: OPTICAL WAVEGUIDE CONNECTOR                    Abstract of the Disclosure An optical fiber connector comprising a first resilient member having elongated grooves in the surface thereof into which fibers to be optically connected are disposed end-to-end.          A second resilient member is urged against that portion of the fibers opposite the first member, thereby causing a slight deformation of the second member and the groove forming walls.      The substantial equilibrium of forces applied to each pair of fibers by the resilient members causes their axes to become aligned.  A longitudinal force applied to each fiber urges the endface thereof into contact with the endface of the fiber that is to be connected thereto.
Patent CA-1068019-A (CA)
Inventor: ROBERTS KELVIN
IPC: C02F1/52
Filed: 1976-03-10
Granted: 1979-12-11
Abstract: ABSTRACT OF THE DISCLOSURE           Organic and colloidal impurities are removed from an aqueous dispersion or pulp slurry, for example newsprint is deinked, by adding to the dispersion or slurry at least one surfactant in an amount sufficient for the formation of a micellar solution containing the organic and colloidal impurities.  Thereafter the micelles are precipitated and the precipitate is removed by flotation, sedimentation, centrifugation or filtration.
Patent CA-1097250-A (CA)
Inventor: DOUTY DONALD L
IPC: B65G45/22
Filed: 1976-04-15
Granted: 1981-03-10
Abstract: ABSTRACT OF THE DISCLOSURE An endless conveyor belt apparatus us employed for moving raw materials which are characterized in having fines associated therewith from one point to another.  The apparatus includes a silicone-emulsion spraying device for applying an aqueous solution of the silicone-emulsion to the material supporting side of the endless belt in sufficient concentrations to promote the release of the fines from the belt when the material being conveyed is dumped, thereby preventing the undesirable build-up of fines on return idler rolls and beneath the belt at points along the belt's return path.
Patent CA-1070048-A (CA)
Title: Process for recycling hydrogen when making blends of olefin copolymers
Inventor: SPIEGELMAN PHILLIP P
IPC: C08F210/18
Filed: 1976-04-20
Granted: 1980-01-15
Abstract: ABSTRACT OF THE DISCLOSURE A continuous process for recycling hydrogen for reuse in making blends of olefin copolymers of high and low molecular weights which comprises copolymerizing ethylene with at least one higher olefin monomer in a solvent in separate reactors in the presence of a coordination catalyst, at least one, but not all, of said reactors containing hydro-gen in an amount sufficient to produce low molecular weight copolymer.  The resulting solutions of high and low molecular weight copolymers are mixed, unreacted monomers and hydrogen are flashed from the mixture, and the copolymer blend is isolated from the unflashed residue.  The flashed gaseous unreacted monomers and hydrogen are circulated together through a staged absorption column under superatmospheric pressure and simultaneously solvent is passed through said column in order to absorb monomer in the solvent and thus separate unabsorbable hydrogen gas from the monomers for recycle to a polymerization reactor in the system for making low molecular weight copolymer component.
Patent CA-1088058-A (CA)
Inventor: CASSANDRINI PAOLO
IPC: C07D251/26
Filed: 1976-06-24
Granted: 1980-10-21
Abstract: PIPERIDYL-TRIAZINE DERIVATES.                ABSTRACT    Novel piperidyl triazine derivatives are produced by reacting a substituted halogentriazine with a polyalcohol, a polymercaptan or a polyamine.  The compounds are valuable light stabilizers for synthetic polymers, such as polyolefins, and fast to extraction in aqueous surfactant solutions.
Patent CA-1047420-A (CA)
Inventor: KUTNYAK THOMAS A
IPC: F16L11/08
Filed: 1976-07-30
Granted: 1979-01-30
Abstract: ABSTRACT of THE DISCLOSURE A preformed radiator hose and a method of manu-facturing such a hose are disclosed herein.  A long lenth of an uncured hose is first fabricated by alternately wrapping layers of an uncured elastomer and fiber rein-forcements around a  straight mandrel.  The uncured hose is then removed from the straight mandrel and cut into shorter segments.  Each of these segments is then placed on a contoured mandrel having a shape corresponding to the intended configuration of the final hose and cured by heating.  Although the fully cured hose does have a per-manent shape, because of the unique arrangement of the reinforcements etc., it has sufficient deformability to be easily slipped off the mandrel.
Patent CA-1057746-A (CA)
Inventor: NOTO VINCENT H
IPC: C08B37/04
Filed: 1976-09-01
Granted: 1979-07-03
Abstract: ABSTRACT OF THE DISCLOSURE         Alginic acid which has been neutralized to the ex-tent of about 0.2 - 17 mole percent, preferably about 3 - 12 mole percent, and has a solids content of from about 20 to about 80 weight percent, is reacted with propylene oxide at a temperature of from about 60°C. to about 140°C., at a pressure sufficient to maintain the propylene glycol in liquid phase.  The reaction is complete when a 2 percent (weight) solution of the propylene glycol alginate has a pH of from about 3.4 to about 4.9.  The reaction is conducted in the substantial absence of any gas other than that present due to the vapor pressure of the reactants.
Patent CA-1045406-A (CA)
Inventor: HEGGIE WILLIAM S
IPC: F02B3/06
Filed: 1976-09-17
Granted: 1979-01-02
Abstract: TITLE                 IMPROVED TRANSDUCER FOR ENGINE FUEL                   INJECTION MONITORING     Inventor William S. Heggie ABSTRACT OF DISCLOSURE     A transducer for diesel fuel injection moni-toring comprising a barrel-shaped housing made of strong metal encompassing the fuel line tube and fixedly attached to the tube circumferentially at outer positions and defining an enclosed annular volume, a pressure measuring element positioned in the said volume away from the fuel tube and adjacent the inner wall of the housing, and a solid cold flowing material completely filling the volume between the fuel tube and the housing with the pressure measuring embedded therein.  In a preferred version of the transducer is split to enable easy installation.
Patent CA-1080600-A (CA)
Inventor: BAURIEDEL HANS
IPC: B29C65/40
Filed: 1976-11-04
Granted: 1980-07-01
Abstract: ABSTRACT OF THE DISCLOSURE             A method for the production of laminated films employing a two component non-solvent adhesive system comprising the steps of applying a thin film of a polyether having at least two terminal isocyanate groups to one of the films to be bonded, applying a thin film of a long chain compound having at least two terminal primary amino groups and a molecular weight of from 300 to 2000 to the other of the films to be bonded, the application of both thin films being in such amounts that the molar ratio of isocyanate groups to amino groups is from 1:1 to 2:1, the two component adhesive having a combined coating thickness of from 1 to 6 µ, pressing the coated sides of the two coated films together, and recovering said laminated films.                             -A-
Patent CA-1074531-A (CA)
Inventor: MERKERT RODNEY F
IPC: C21C5/52
Filed: 1976-12-03
Granted: 1980-04-01
Abstract: METHOD OF PRODUCING A COMPOSITION   CONTAINING A LARGE AMOUNT OF      VANADIUM AND CARBON                  Abstract of the Disclosure A method for producing a material containing vanadium and nitrogen and less than 2% carbon and oxygen by vacuum furnacing is described which comprises subject stoichiometric proportion of V2O3 and carbon according to the formula:         V2O3 + 3C   ?  2V + 3CO to a furnace temperature of from 1100°C to 1500°C under a reduced pressure of from 5 mm to 100 mm, maintaining such temperature and pressure until CO is substantially no longer evolved, then maintaining said temperature and introducing nitrogen gas into the furnace to provide a nitrogen atmosphere of at least 0.25 atmosphere pressure and thereafter repeating the above steps until the nitrogen content in the mixture is about 10 to 12% by weight.                 S P E C I F I C A T I O N
Patent CA-1084067-A (CA)
Inventor: KNOEFEL HARTMUT
IPC: C07C209/78
Filed: 1976-12-13
Granted: 1980-08-19
Abstract: PROCESS FOR THE PREPARATION OF POLYAMINES       ABSTRACT OF THE DISCLOSURE           The instant invention is directed to a process for the preparation of multinuclear aromatic polyamines by conden-sation of aromatic amines with formaldehyde in the presence of aqueous acid catalysts followed by neutralization of the catalyst and processing of the resulting reaction mixture in known manner, characterized in that free amine is removed from the reaction mixture leaving the last condensation stage by means of a hydrophobic solvent, optionally after partial neutraliza-tion of the catalyst but before neutralization of the total quan-tity of catalyst put into the process, and the amine thus removed is returned to the catalyst-containing aqueous phase by return of the resulting amine-containing solvent phase into said aqueous, catalyst-containing phase at any point before the last condensa-tion stage.
Patent CA-1089089-A (CA)
Inventor: OMORI YASUO
IPC: H04N5/205
Filed: 1977-01-07
Granted: 1980-11-04
Abstract: ABSTRACT OF THE DISCLOSURE:          A video amplifier includes a channel having an input terminal to which a video signal is applied and an output termi-nal from which the video signal is delivered.  A frequency de-tector is provided to detect high frequency components of the input video signal to deliver a first signal.  The amplitude of the input video signal is detected when it exceeds a predetermined level by means of an amplitude detector producing a second signal.          A clamping circuit is provided to respond to the simultaneous occurrence of the first and second signals to clamp the voltage at the output terminal to the predetermined level.
Patent CA-1083418-A (CA)
Inventor: LIN LIANG-CHUAN
IPC: B41M1/26
Filed: 1977-02-11
Granted: 1980-08-12
Abstract: ABSTRACT OF THE DISCLOSURE           A process and apparatus for transferring printed in-formation, in the form of printing ink, from a printed paper to a non-porous substrate by the application of a solvent to the surfaces of an adhesive coating on the printed information sur-race and a surface of the substrate, followed immediately by the application of pressure to unite the adhesive surfaces together and the subsequent dissolution and removal of the paper leaving the printed information attached to the substrate by means of the adhesive.
Patent CA-1046014-A (CA)
Inventor: SMITH DANIEL F
IPC: A47F1/12
Filed: 1977-03-15
Granted: 1979-01-09
Abstract: SHELF AID Abstract of the Disclosure A pusher is disposed behind a series of generally like objects stacked from back to front on a shelf.  Side members tie the pusher to a pull handle at the front of the shelf and confine the stack of objects laterally in alignment.          A rail is disposed at the front of the shelf to prevent objects from falling off the shelf as the pusher is drawn forward by the handle.  Resilient means are disposed behind the pusher to return it and the handle to normal position after being drawn forward by a pull on the handle.
Patent CA-1086346-A (CA)
Title: Paire de roulettes pour patin a roulettes
Inventor: PASSONI GIANFRANCO
IPC: A63C17/22
Filed: 1977-03-30
Granted: 1980-09-23
Abstract: Paire de roulettes pour patin à roulettes, comprenant un mandrin muni d'une patte de fixation du support de la chaussure. Ledit mandrin est fixe en rotation et porte, à chacune de ses extrémités, un roulement à billes enfilé sur un arbre rotatif et retenu axialement par des rondelles élastiques. L'arbre rotatif s'étend au-delà des extrémités du mandrin et porte des roulettes montées sur lui et retenues axialement par des rondelles assurant l'étanchéité une bague de butée. Le mandrin présente, à mi-distance entre ses extrémités, une valve.
Patent CA-1052988-A (CA)
Inventor: HICKMAN CHARLES E
IPC: F28F9/02
Filed: 1977-04-25
Granted: 1979-04-24
Abstract: ABSTRACT OF THE DISCLOSURE         A method is disclosed of forming a header assembly in which a plurality of tubes transition into a single header passage.  The method includes forming a blank extrusion com-prised of a plurality of juxtaposed tube elements intercon-nected by web sections of a thickness approximately double the wall thickness of the individual tube members in the blank.  The blank is placed in a female die and a wedge-shaped male forming tool is advanced into the blank for a portion of the length of the blank, the male forming tool being configured to split the interior of the blank along the center of the web sections as the tool advances thereinto, forcing the web sections and connected tube portions apart and into contact with the wall of the female die cavity to form the header section.  Further forming steps are disclosed including a severing of the web sections interconnecting the tubes along the remainder of the length of the blank, as well as appropriate reshaping of the header section subsequent to the initial forming operation in order to configure the same to the particular application for which the header assembly is to be used.
Patent CA-1103494-A (CA)
Inventor: LEWIS DENNIS L
IPC: H01B11/00
Filed: 1977-06-06
Granted: 1981-06-23
Abstract: ABSTRACT In an optical fibre cable having a core of one or more straight optical fibre waveguides, with or without a textile sleeve, the protective sheath surrounding the core consists of a plastic tube incorporating reinforcing tensile material in its wall, the relative proximity of the fibres, the sleeve if present, and the sheath being such as to permit freedom of movement of the fibres in relation to the sheath, in both radial and axial directions. The preferred form of reinforcement consists of elongate tensile members, such as steel wires, embedded in the sheath wall, equally spaced apart and lying parallel to the core. The reinforced sheath is formed by a single continuous extrusion step, the reinforcing members being fed into the extruded plastic material simultaneously with the feeding of the cable core into the bore of the extruded sheath. Preferably the optical fibres, especially if unsleeved, are introduced into the sheath bore through a stationary inner tube inserted through and beyond the central duct of the extruder head, to prevent adhesion of the fibres to the soft extrudate.
Patent CA-1056123-A (CA)
Inventor: NAESLUND SOEREN
IPC: E04H12/10
Filed: 1977-06-10
Granted: 1979-06-12
Abstract: A B S T R A C T       A method of staying climb rods for co-operation with so-called climbing jacks by utilizing masts, preferably lattice masts, each of which climb rod  is capable of carrying vertical forces transferred via an associated climbing jack, while horizontal forces acting on the climb rod are transferred to the staying mast. The method comprises the steps of supporting the staying mast pivotally on a footing permitting the mast to pivot slightly in any direction, and attaching the climb rod slidably to the staying mast so as to render possible relative movements in the vertical direction between the rod and the mast. The invention also relates to an arrangement for staying climb rods in accordance with the method set forth.
Patent CA-1080738-A (CA)
Inventor: DRABEK JOZEF
IPC: A01P7/04
Filed: 1977-06-20
Granted: 1980-07-01
Abstract: Abstract of the Disclosure Compounds of the formula I               wherein R1 is methyl or ethyl, R2 is C1-C8-alkyl or C3-C8-cycloalkyl and R3 is hydrogen, C1-C6-alkoxy or cyclopropyl possess valuable pesticidal, in particular insecticidal, properties.
Patent CA-1068057-A (CA)
Inventor: JOHANSSON HANS A V
IPC: A47K7/00
Filed: 1977-06-27
Granted: 1979-12-18
Abstract: ABSTRACT OF THE DISCLOSURE A washing implement for personal body care has an elongated washing rod with a handle.  The rod has a protective cover which is open at one end of the rod, so that it can be rolled back to expose the rod and at the same time form a protective cover for the hand grasping the handle.
Patent CA-1070405-A (CA)
Inventor: CHERIAN GABRIEL B
IPC: H01R13/193
Filed: 1977-07-29
Granted: 1980-01-22
Abstract: ABSTRACT        An electrical connector, for use in mounting a multi-pin electronic device on a substrate, comprises a body of electrically insulating material, the body defining a plurality of cavities each containing an individual electrical contact having a post portion projecting from the body for reception in a hole in a substrate, and a pair of spring arms integrally formed with the post portion and contained in the cavity, the arms being inherently biased to-wards each other for reception of a pin of an electronic device therebetween, and an actuating member of electrically insulating material coupled to one of the spring arms of each of the contacts such that movement of the actuating member relative to the body in one sense causes the actuating member to urge the spring arms of each contact apart to permit easy access for a pin of an electronic device.
Patent CA-1081963-A (CA)
Inventor: HARWOOD WILLIAM J
IPC: B24B23/02
Filed: 1977-07-29
Granted: 1980-07-22
Abstract: ABSTRACT           A portable apparatus for reducing the dimen-sions of a workpiece by abrading means.  The apparatus comprises in combination:  a portable electric drill motor having a tool shaft-receiving chuck; a workpiece abrading means operatively connected with a shaft adap-ted to be engaged by the chuck; a guide member support-ing the drill motor; a base member adapted to receive and support (1) the guide member adjacent one end, and (2) a housing generally surrounding the abrading means adjacent the other end; the base member having reten-tive parallel positioning rails extending longitudinally along each lateral edge of a face of the base member; the guide member being slidable longitudinally of the base member whereby the drill motor is adjustably ad-vanceable toward the end of the base member to allow the tool to be aligned with the housing or guard.