baber/WOPTO huggingface dataset:
Patent CA-1141120-A (CA)
Inventor: HAMELIN ROBERT
IPC: B29C59/04
Filed: 1980-03-26
Granted: 1983-02-15
Abstract: Abstract of the Disclosure There is disclosed a new and improved plastic extrusion structure and manufacturing apparatus and method for producing the same. The disclosure is directed to a specific application of the present invention in the form of a tire which includes a peripheral surface having a tread thereon which tread includes not only longitudinal and circumferential grooves, but in addition, non-longitudinal or lateral grooves us well. The plastic tire also includes annular sidewalls naving circumferential side margin portions adjacent the peripheral surface of the tire, which side margin portions also include a tread pattern thereon. The plastic tires are of the type formed from extruded plastic material and the manufacturing apparatus disclosed is adapted to form a tread on the surface of the extruded plastic material having any predetermined pattern of grooves. The apparatus includes a first die means for shaping the extruded plastic to a predetermined cross-section including a tread receiving portion and second die means including a rotatable wheel immediately adjacent the first die means. The wheel includes a peripheral embossing surface defining a predetermined tread pattern and is arranged to engage and emboss the predetermined tread pattern onto the tread receiving surface of the extruded plastic. Preferably, the first and second die means are enclosed within a common housing so that each acts upon the extruded plastic while the plastic is in a malleable state.
Patent CA-1095904-A (CA)
Title: Process for the manufacture of crystalline fructose
Inventor: DWIVEDI BASANT K
IPC: C13K11/00
Filed: 1980-03-26
Granted: 1981-02-17
Abstract: ABSTRACT OF THE DISCLOSURE A process for the manufacture of free-flowing crys-talline fructose, which process comprises seeding an 88% to 96% by weight fructose syrup with 2% to 15% by weight of fructose seed crystals at 120°F to 160°F, the seed crystals having a size not greater than 250 microns, and permitting crystallization to occur at about 50°F to 90°F and at a rela-tive humidity of less than 70%.
Patent CA-1159524-A (CA)
Title: Method of fabricating a pressure sensor
Inventor: BROOKS MARK A
IPC: G01L7/10
Filed: 1980-04-15
Granted: 1983-12-27
Abstract: METHOD OF FABRICATING A PRESSURE SENSOR          ABSTRACT    A pressure sensor including a pressure capsule such as a dual diaphragm quartz capacitance pressure capsule and structure for supporting and sealing same within the pressure environment to be measured.  The pressure capsule having two parallel quartz plates spaced by a dielectric ring forming a vacuum chamber therein.  The structure providing a force balanced support for compressively loading the pressure capsule through the dielectric ring.  The structure further having transfer port therein to communicate the pressure environment to both plates.     The method of making the quartz capacitive pressure capsule includes the steps of surface preparation, preglazing of the component parts and vacuum sealing by utilizing a controlled pressure-temperature profile.     A registration fixture is described which contains a plurality of flat plates, each plate having a pressure capsule receiving cavity sized to closely receive one of the quartz plates and further provides a uniform temperature radiation pattern for sealing of the pressure capsule during the controlled pressure-temperature profile.
Patent CA-1142345-A (CA)
Inventor: TUMBUSH GERALD L
IPC: G01D5/36
Filed: 1980-04-18
Granted: 1983-03-08
Abstract: ABSTRACT OF THE DISCLOSURE      A measuring machine including a measuring system in which a measuring increment is divided into smaller units for better resolution and accuracy.   The increased mea-surement resolution is accomplished by detecting a Moire fringe pattern at two locations, generating at least two square waves representative of the measurement, assigning a digital value  to the  square waves at two different times, using the digital values of the square waves at the two times as a ROM address for look-up.  The ROM has values (markers) stored as an indication of whether the measure-ment should be incremented and by how much (+1 or -1 in one embodiment).   The square waves are pulse patterns which are offset (i.e., change state at different points), using the digital values from a present state and previous state to provide a ROM address representative of whether a pulse should be created indicating a relative movement and if so providing an indication of which direction in which the apparatus is moving.
Patent CA-1118370-A (CA)
Inventor: SALVANA FRANK
IPC: F16N7/32
Filed: 1980-04-23
Granted: 1982-02-16
Abstract: Inventors:  Frank Salvana Arnold Junker Assignee:   Avco Corporation Atty. Docket: L-526 EMERGENCY OIL/MIST SYSTEM  Abstract of the Disclosure An emergency oil/mist system is embodied in the main lubrication system for a bearing or gear box assembly of a gas turbine engine, and includes an auxiliary reservoir interconnected between the main source of pressurized lubricant and an air aspir-ating nozzle which is capable of either providing a stream of oil to the bearing, or a mist of lubricant to the bearing.  A source of pressurized air is connected to the air aspirating nozzle through a control piston valve, and the latter also is provided in a vent line extending between the auxiliary reservoir and the atmosphere.  During normal operation of the main lubrication system, the source of pressurized oil is connected through the auxiliary reservoir to the nozzle for providing a stream of lubri-cant to the bearing.  Upon failure of the source of pressurized lubricant, the control piston valve is actuated so as to connect the auxiliary or emergency lubricant reservoir to the atmosphere by the vent conduit, and simultaneously connect the source of pressurized air to the air aspirating nozzle.  The pressurized air passing through the nozzle aspirates or draws oil from the emergency reservoir to provide a spray or mist of lubricant to the bearing.  The vent assures that the oil in the auxiliary reservoir is withdrawn at a controlled rate, thereby providing a spray of lubricant to the bearing for a limited period of time to enable the engine to maintain its operation.  The emergency system produces an ultrasonic impingement of the oil as it leaves the air aspirating nozzle so as to create extremely small drop-lets of uniform distribution of oil on the bearing.
Patent CA-1162603-A (CA)
Inventor: LOUARN MARCEL
IPC: A61C1/00
Filed: 1980-05-29
Granted: 1984-02-21
Abstract: ABSTRACT                  Device to control the speed of an electric motor from a pneumatic pedal, characterized in that it includes an element deformable with the pressure controlled by the pneu-matic pedal, an element of magnetic material forming a mechanical unit with the element deformable with the pressure and capable of modifying the inductance of a coil incorporated into an electronic controlcircuit for the current of the electric motor the speed of which is to be controlled.
Patent CA-1146628-A (CA)
Inventor: GOLDE ERNST
IPC: H01F27/42
Filed: 1980-06-26
Granted: 1983-05-17
Abstract: ABSTRACT OF THE DISCLOSURE     In a device for establishing a phase-correct representation of a high alternating voltage from a mains, for the purpose of controlling mains-operated rectifiers (valves) of a current-converter-connected to the mains through a current-converter-transformer, in a high-voltage direct-current trans-mission system, an auxiliary winding is provided in the current-converter-trans-former.
Patent CA-1109444-A (CA)
Inventor: STRATIENKO ANDREW
IPC: F16K31/53
Filed: 1980-07-09
Granted: 1981-09-22
Abstract: VALVE ACTUATOR         Abstract of the Disclosure.  An automatic motorized valve actuator is disclosed which features a worm gear drive assembly for receiving high rotational motion of a drive motor and reducing it to the low speed linear or rotational motion of a valve stem.  A coaxial alignment of the motor shaft, the worm gear shaft and a manual operator shaft eliminates the need for a separate shifting assembly for shifting from motorized to manual operating mode.  The invention further discloses clutches for operationally connecting the various shafts, a sliding lockout rod assembly for preventing simultaneous engagement of manual and motor operating modes, magnetic motor engagement and disconnect means, and resilient torque sensing means for shutting off power to the motor.
Patent CA-1168983-A (CA)
Inventor: BROWNLEE MICHAEL
IPC: A61K38/28
Filed: 1980-07-23
Granted: 1984-06-12
Abstract: Method and System for the Controlled Release of Biologically Active Substances to a Body Fluid Abstract A process and system for controlled delivery of a biologically active substance to an animal body fluid which comprises contacting fluid with a reversible complex of a conjugate (1) and a binding ma-cromolecule (2), wherein the conjugate (1) comprises a biologically active portion which is intended to be proportionately released into a body fluid stream in response to varying concentration levels of a component of the body fluid stream, and a complexing substrate por-tion which conjugates with the biologically active portion and which is characterized by affinity to the binding macromolecule (2), compe-titively or non-competitively with the variable component of the body fluid; thereby causing the component present in the body fluid to complex to the binding macromolecule and thus releasing the conjugate (1) therefrom into the fluid.     The process and system are particularly applicable for the glu-cose-controlled release of insulin and other hypoylycemic agents in the treatment of diabetes.
Patent CA-1131443-A (CA)
Inventor: KINKADE WILLIAM A
IPC: C04B11/028
Filed: 1980-07-29
Granted: 1982-09-14
Abstract: APPLICATION FOR LETTERS PATENT      FOR            CALCINING KETTLE HAVING MEANS FOR      RETURNING STACK EXHAUST GAS    TO CALCINING MIXTURE     ABSTRACT OF THE DISCLOSURE    A calcining apparatus comprising a kettle, a heating chamber for heating the outside of the kettle, a stack for exhausting gas from the heating chamber, a duct connected at one end to the stack and having the other end extending for a limited distance into the contents of the reaction chamber of the kettle for introducing a portion of the stack gas directly into the calcining reaction mixture, and means for propelling the stack gas through the duct and into the reaction chamber of the kettle, thereby directly adding heat to the reaction mixture and accomplishing fuel conservation by recapturing and utilizing a portion of the heat from the stack gas.
Patent CA-1149338-A (CA)
Inventor: RICHARDS WILLIAM D
IPC: G02C13/00
Filed: 1980-10-06
Granted: 1983-07-05
Abstract: IMPROVED SOFT CONTACT LENS APPARATUS         Abstract of the Disclosure Improved apparatus for transporting and positioning a contact lens immersed in a liquid for inspection is disclosed.  The device has a plurality of support-ing surfaces and a weight to biase the lens against the surfaces during immersion and prevent unintentional motion of the lens in the liquid during inspection.
Patent CA-1109501-A (CA)
Inventor: BAINARD DEAN R
IPC: F16J15/16
Filed: 1980-10-08
Granted: 1981-09-22
Abstract: THRUST WASHER AND COMBINATION SEAL AND   THRUST WASHER METHOD AND APPARATUS               ABSTRACT OF THE DISCLOSURE           A thrust washer having a backing layer of re-silient material such as rubber or other elastomers and having, for example, a polytetrafluoroethylene bearing surface, which can include one or more integral sealing lips formed from the polytetrafluoroethylene bearing material.  Another aspect of this invention is a unitary article including said resiliently-backed thrust washer in combination with a seal.  This unitary article can be purchased and installed as a unit taking the place of four separate prior art elements that had to be purchased and installed separately.
Patent CA-1156052-A (CA)
Inventor: BRADBURY JAMES A
IPC: C22B15/00
Filed: 1980-10-16
Granted: 1983-11-01
Abstract: "IMPROVEMENTS IN THE RECOVERY OF METAL VALUES"                     ABSTRACT           The present process involves an improvement in the hydrometal-lurgical recovery of metal values Prom metal bearing sources such as ores and the like.  The desired metal values are recovered by subjecting a metal bearing source to a reductive roast in a reducing atmosphere after having treated said source with at least one additive.  Following the reductive roast the reduced metal bearing source is cooled and extracted by a leaching operation.  The separation of various metal values in the metal bearing source may be effected by adding a solid adsorbent to the leach solution whereby selective metal ions are adsorbed thereon.  The improvement in the present process comprises pretreating the solid adsor-bent prior to use thereof with an acid thereby increasing the loading capacity of the metal ions in the absorbents as well as kinetics of metal adsorption.
Patent CA-1157321-A (CA)
Title: Power assisted steering for marine propulsion  device
Inventor: BORST GAYLORD M
IPC: B63H20/00
Filed: 1980-10-21
Granted: 1983-11-22
Abstract: POWER ASSISTED STEERING FOR               MARINE PROPULSION DEVICE                 ABSTRACT OF THE DISCLOSURE        Disclosed herein is an outboard motor for a boat having a hull and including a support adapted to be fixed relative to the boat hull, and a propulsion means including a rotatably mounted propeller and being connected to the support for pivotal steering movement about a steering axis.          The outboard motor also includes a pair of elongated members, coupled together for linear extension and retraction upon rotation of one of said elongated members with respect to the other of said elongated member, an end of one of said members being con-nected to said propulsion means for causing pivotal movement of said propulsion means about said steering axis, means for fixing the other of said elongated members against longitudinal movement, and means for selectively causing rotation of one of said elongated members with respect to the other of said elongated members.
Patent CA-1155194-A (CA)
Inventor: HANSEN PAUL L
IPC: H04Q9/14
Filed: 1980-10-27
Granted: 1983-10-11
Abstract: OPTICALLY COUPLED SERIAL COMMUNICATION BUS          Abstract A master slave controller communication sys-tem is  disclosed wherein intercommunication occurs between the master controller and the slave controller over the same communication control line.
Patent CA-1106253-A (CA)
Inventor: MARTONFI JOSEPH SR RANG ST FRA
IPC: F23B20/00
Filed: 1980-12-15
Granted: 1981-08-04
Abstract: ABSTRACT OF THE DISCLOSURE           The invention relates to a stove which burns a primary combustible material in a container placed on a horizontal plate which divides the stove into upper and lower combustion chambers.  The plate has a central aperture there-through which, in operation, is in registry with a central opening in the container bottom wall.  A hollow perforated tube is positioned in the container in registry with the opening and the aperture and the combustible material fills the container, surrounding the wall of the tube.  When a temporary starting fire is lit in the lower chamber, the flames thereof will be drawn up into the tube and will light the combustible material in the container through the perforations in the tube.  The combustible material in the container will burn radially out-wardly from the tube in a uniform manner, with air circulation being provided in the expanding annular space between the tube and the burning face of the combustible material.  Combustion may be controlled via appropriate air vents and ash will accumulate in the bottom of the container.  The container may be removed so that the ashes may be conventiently disposed of and so that the container may be recharged with new combustible material.
Patent CA-1195691-A (CA)
Title: Phenyl-alkanoic acid derivative and preparation  thereof
Inventor: UEDA IKUO
IPC: C07C45/71
Filed: 1981-01-21
Granted: 1985-10-22
Abstract: ABSTRACT     Phenyl alkanoic acid derivatives and pharmaceutically acceptable salts thereof as well as processes for their preparation are provided; the new compounds have the fomula:                            (I) wherein R1 is halogen, hydroxy, lower alkyl or lower alkoxy, Ra3 is alkylene or lower alkenylene optionally substituted by a phthalimido group, and X is O, S, SO or SO2; the compounds have anti-inflammatory, analgesic and antipyretic activities.
Patent CA-1168556-A (CA)
Inventor: SNITGEN JOSEPH D
IPC: F15B11/06
Filed: 1981-02-06
Granted: 1984-06-05
Abstract: ABSTRACT OF THE DISCLOSURE          There is disclosed an air operated demand only hydraulic power unit for supplying hydraulic fluid under pressure to one or more hydraulic working motors, comprising an extensible pneumatic power motor including an extensible power transmitting member, an extensible hydraulic slave motor including an extensible slave member powered by said power transmitting member, said slave motor being connected to each said hydraulic working motor to power same, valving for controlling the supply of air and oil to said power and slave motors, and a reset valve for insuring full volume cycling of said slave member in said slave motor.  In one embodiment the reset is indicated by sensing the various pressure changes after all working motors are extended and then valving leftover oil to a reservoir.  A second embodiment accomplishes the reset on a time delay basis.  There is also disclosed an optional intensifier for two-stage operation of said working motors and an optional intensifier for the retract stroke of said power unit to insure full retraction of the hydraulic working motors if so desired.  Further included in the disclosure is a mechanism for readily and selectively limiting the working volume of the extensible pneumatic power motors as desired in relation to the number of working motors utilized.
Patent CA-1156687-A (CA)
Inventor: WINKELBAUER HOWARD M
IPC: C04B33/13
Filed: 1981-04-29
Granted: 1983-11-08
Abstract: Abstract of the Disclosure A means for producing nitride bonded refractory shapes, in situ, by mixing an aluminum metal powder, relatively pure silica, crude clay and a refractory aggregate.  The mixes are pressed into shapes and burned at elevated temperatures in a nitriding atmosphere to form the bond.
Patent CA-1178654-A (CA)
Inventor: ASAKAWA KAZUO
IPC: H02K41/02
Filed: 1981-06-05
Granted: 1984-11-27
Abstract: Abstract of the Disclosure The present invention relates to an induction type positioning system which accurately stops a movable part without any contact and holds it in the stop position.  The invention can be used for positioning the movable part of a linear motor.  The invention comprises a primary core consisting of a main pole carrying a single phase AC magnetic field generation coil, an auxiliary pole connected thereto and a conductive plate which relatively moves against this primary core, thereby generating a holding force for suppressing the relative movement between the primary core and conductive plate by means of an eddy current,  This eddy current is induced in the conductive plate by the field generated by the main pole at the position where the conductive plate is placed on the auxiliary pole and simultaneously the edge of the conductive plate is placed on the main pole, and the eddy current induced in the conductive plate by the field generated from the auxiliary pole.
Patent CA-1168427-A (CA)
Inventor: HOUSE ROY F
IPC: C09K8/20
Filed: 1981-06-30
Granted: 1984-06-05
Abstract: Abstract of the Disclosure A method of producing a thickened aqueous medium within a borehole comprising adding to the aqueous medium a first hydrophilic polymer which increases the viscosity of the medium at ambient temperature and a second hydro-philic polymer which will not appreciably increase the viscosity at ambient temperature but which increases the viscosity at  elevated  temperature,  mixing the aqueous medium and polymers to increase the viscosity, pumping the partially viscosified medium to the desired location in the borehole  and  aging  the  partially  viscosified medium sufficient  to allow  both of  the polymers to completely hydrate.
Patent CA-1173338-A (CA)
Inventor: JANSSENS WERNER J
IPC: B27D1/00
Filed: 1981-08-12
Granted: 1984-08-28
Abstract: Abstract of the Disclosure This invention relates to a method and apparatus for adhering bands or tapes to surfaces, and in particular for applying a band of veneer material to the edge of a board.
Patent CA-1175030-A (CA)
Inventor: POSSO PATRICK
IPC: F16M11/12
Filed: 1981-08-14
Granted: 1984-09-25
Abstract: IN THE C A N A D I A N     PATENT & TRADEMARK OFFICE    PATENT APPLICATION   entitled: Improved platform for a camera or cine camera stand in the name of: Patrick Posso assigned to: GEFITEC S.A.                    ABSTRACT OF THE DISCLOSURE              The invention relates to an improved platform for a camera or cine camera stand, wherein a dog gear wheel fast with the deck element cooperates with the corresponding gear wheel of the dog which is fast with a split sleeve which is mounted to slide on a shaft, fast with said deck element and free in the turret, is repelled, for mesh of the teeth of these gear wheels, by a spring abutting on a shouldered part of said shaft and is adapted to be clamped thereon by a control handle screwed in said split sleeve.
Patent CA-1162033-A (CA)
Inventor: KUDO YOSHIHIKO
IPC: C01F11/46
Filed: 1981-08-19
Granted: 1984-02-14
Abstract: The economic feasibility of utilizing solar cell technology for significant portions of the present and prospective needs for replenishable, non-polluting energy sources would be enhanced if the overall cost of producing single crystal wafers of requisite purity could be reduced. A major area of interest, in this regard. relates to the development of a low-cost, continuous process for the production of high purity polycrystalline silicon from metallurgical grade silicon.  The need for such low-cost, high purity silicon is increased by the continued expansion of the utilization of solid-state electronic devices.  While the purity requirements for solar grade silicon are not as stringent as for semi-conductor or electronic applications, the highest purity silicon material available at economically feasible costs can be effectively utilized for either solar cell or electronic applications.    The initial step of converting metallurgical silicon to trichlorosilane has commonly been carried out by reacting metallurgical grade silicon with HCl in a fluid bed reaction zone at about 300°C.  Trichlorosilane com-prises about 85% of the resulting reaction mixture, which also contains silicon tetrachloride, dichlorosilane, polysilanes and metal halides.  While this technique has been employed successfully in commercial practice, it requires the use of relatively large reaction vessels and the consumption of excess quantities of metallurgi-cal silicon.  In addition, the reaction mixture is relatively difficult to handle and has associated waste disposal problems that contribute to the cost of the
Patent CA-1180763-A (CA)
Inventor: ROBINSON DARRELL
IPC: G01R11/04
Filed: 1982-01-07
Granted: 1985-01-08
Abstract: ABSTRACT OF THE DISCLOSURE     A cover assembly for a meter socket.  The assembly comprises a circular disc formed of a single piece of molded insulating material.  The disc has a diameter and an edge thickness substantially equal to that of a retaining ring of a meter intended for assembly into the socket.  The disc has cavities molded into the rear surface thereof with the cavities opening to the rear surface only.  Conductive jumper members are mounted on the rear side of the disc by fasteners engaged with the walls of the cavities without protruding from the front of the disc.