baber/WOPTO huggingface dataset:
Patent CA-1062069-A (CA)
Inventor: SANTILLI DOMENIC
IPC: C08G63/685
Filed: 1975-11-10
Granted: 1979-09-11
Abstract: LIQUID ELECTROGRAPHIC DEVELOPER COMPOSITION AND PROCESS       Abstract of the Disclosure A liquid developer containing redispersible, readily heat-fixable toner particles and a process for using the same.      The developer is characterized by toner particles containing certain linear polyesters which are physically inert to the liquid carrier vehicle of the liquid developer and which, advantageously, have a melting point below about 100°C.
Patent CA-1039544-A (CA)
Inventor: SCHUTRUM WALTER L
IPC: G03B21/11
Filed: 1975-12-01
Granted: 1978-10-03
Abstract: Title of the Invention MICROFORM PROJECTION APPARATUS         Abstract of the Disclosure A projection lens assembly is supported from a microform reader in a manner whereby a lower ring of the assembly is in contact with the top surface of the microform and a lower supporting platen is in engagement with and maintains a portion of the microform in a precise position spaced from the projection lens to assure constant focus of the image.  The lower platen is conical-shaped and fits in an aperture in the reader table in a manner to permit finite minimum lateral movement while spring loading thereof maintains the platen in contact with the microform.  The lower platen is designed to permit the microform to be freely movable to any desired X-Y coordinate when the pressure is relieved so as to provide a small additional space between the platen and the ring of the lens assembly.  The image so being viewed is in proper focus when the platen glass in contact with the microimage urges same against the lens assembly ring.
Patent CA-1050613-A (CA)
Inventor: PARTON KENNETH C
IPC: G05F3/06
Filed: 1976-01-16
Granted: 1979-03-13
Abstract: ABSTRACT OF THE DISCLOSURE.     A current-limiting device for A,C, systems comprises saturable reactors with superconducting bias windings which maintain the reactors in saturation for normal A.C. loads.  Excess current drives one of the reactors out of saturation on alternate half-cycles and thus creates a large flux change with accompanying back EMF to limit the current.  The device is applicable to the connection of electric power distribution systems to limit fault currents and to allow power transfer without loss of stability.
Patent CA-1068116-A (CA)
Inventor: EDWARDS RODERICK I
IPC: C22B11/00
Filed: 1976-01-26
Granted: 1979-12-18
Abstract: A B S T R A C T            A process for the dissolution of precious metal values in a concentrate thereof wherein the concentrate is caused to alloy with aluminium and the alloy is then leached in at least two steps, the first of which is to remove base metals and in the second of which the precious metals are dissolved using hydrochloric acid and chlorine gas as an oxidant.
Patent CA-1067682-A (CA)
Inventor: TENNENHOUSE GERALD J
IPC: H01M10/39
Filed: 1976-01-29
Granted: 1979-12-11
Abstract: METHOD FOR PREPARING SHAPED, GREEN CERAMIC              COMPACTS                 ABSTRACT OF THE DISCLOSURE         A method for preparing shaped, green ceramic compacts suitable for firing to form high density .beta."-alumina containing ceramic bodies comprising: (1) mixing between about 2.5 parts by weight and about 4.5 parts by weight of a ceramic composition comprising at least about 80 weight percent of aluminum oxide and from about 5 to about 15 weight percent of sodium oxide with 1 part by weight of a binder composition comprising between about 20 weight percent and about 35 weight percent of polyvinyl pyrrolidone having a number average molecular weight (?n) between about 20,000 and about 160,000 and between about 80 weight percent and about 65 weight percent of ethylene glycol; (2) extruding the mixture so formed through a die of desired configuration; and (3) heating the extrudate at temperatures and for periods of time necessary to evaporate the ethylene glycol solvent and burn off the polyvinyl pyrrolidone.
Patent CA-1049361-A (CA)
Inventor: FIELDS GEORGE JR
IPC: F24C15/20
Filed: 1976-02-13
Granted: 1979-02-27
Abstract: ABSTRACT OF THE DISCLOSURE An electric range having a solid glass-ceramic cook-top with a baking oven positioned beneath the cooktop. The oven includes an oven vent near the top of the oven liner.  An exhaust duct system is joined to the oven vent to carry the oven exhaust up the back of the range to discharge from the backsplash of the range.  The exhaust duct system includes a cooling air entry means for reducing the temperature of the oven exhaust gases and an internal trap to prevent backdrafts of the oven exhaust from leaving through the cooling air entry means.
Patent CA-1071113-A (CA)
Inventor: JONES CYRIL T
IPC: C02F1/28
Filed: 1976-02-19
Granted: 1980-02-05
Abstract: ABSTRACT OF THE DISCLOSURE           This invention concerns a method of providing a more complete solution to effect the removal and control of mercury and other pollutants entering our surface water, water carriage systems, and their respective drainage areas.           The treatment of the invention allows for the treatment of the water systems in their entirety, throughout all seasons of the year, in an effective, and economical manner and one that is easy of practice using semi-skilled and unskilled labour.           The treatment medium used is a selected mercury adsorp-tive coal, having the capability of removing mercury from high or low concentrations of mercury solutions in the order of 99.999 per cent removal.           By the use of the present method outlined herein the accumulated fall-out of airborne mercury and other pollutants on the winter snow and ice is adsorbed and contained, thereby serving to prevent massive amounts of the pollutants being released into the water at spring breakup time.  A master plan is provided to attack in a practical manner all facets of the mercury problem from its point of origin to the eventual disposal of recovered sed-iments, and the treatment of the recovered leachates therefrom.
Patent CA-1062951-A (CA)
Inventor: SINGH GYANENDRA
IPC: A23L2/40
Filed: 1976-04-15
Granted: 1979-09-25
Abstract: SOLID ANTIFOAM CRYSTALS FOR DRY      BEVERAGE MIXES     Gyanendra Singh The Abstract of the Disclosure A rapidly dissolvable and substantially dry antifoam additive for dry beverage compositions is prepared by dehydrating an aqueous slurry comprising a crystalline sugar, a silicone antifoam agent and a liquid flavorant.
Patent CA-1060674-A (CA)
Inventor: FRAZIER WILLIAM C
IPC: G01N33/34
Filed: 1976-05-11
Granted: 1979-08-21
Abstract: ABSTRACT OF THE DISCLOSURE        An apparatus and method are disclosed for determining the wet strength of paper.  It is necessary to know the wet strength of paper in order to determine the runnability of pulp in the papermaking machine.  Present devices for measuring the wet strength of paper are slow and complex.  The present apparatus includes a means for releasing a ball from a predetermined height to drop freely in a vertical path, clamp means to support a sheet of wet paper and to position the sheet at a pre-determined location within the vertical path of the ball and perpendicular thereto, and means for determining speed of the ball dropping in the vertical path below the clamp means.  The method includes steps of releasing a ball from a predetermined height to drop freely in a vertical path, measuring the speed of the ball at a first pre-determined location in the vertical path, positioning a sheet of wet paper in a horizontal plane at a second pre-determined location above the first location in the vertical path, releasing another ball having the same size and mass as the first ball to drop freely in the vertical path and rupture the sheet of wet paper, measuring the speed of the second ball after it has ruptured the sheet of wet paper at the first location in the vertical path and determining the rupture energy of the sheet of wet paper and thus the strength of the wet paper.
Patent CA-1039153-A (CA)
Title: Garniture belt
Inventor: STEWART EMORY E
IPC: D03D15/00
Filed: 1976-06-04
Granted: 1978-09-26
Abstract: ABSTRACT         An endless woven garniture tape or belt for cigarette making machines comprising a combination of natural, chemically modified, and synthetic fibers in a unique blend and arrangement which possesses proper ties that result in superior wear life performance without sacrificing other performance criteria. The warp is made from combed sak cotton fiber threads, with a multiplicity of such threads mercerized and plied together to form each warp thread. The filling threads are made up of a multi-filament synthetic core wrapped with cotton fiber with a multiplicity of such wrapped threads plied together to form each filling thread. Endless belts made according to this invention have a wear life approximating three times the normal wear life of conventional belts used on cigarette making machines.
Patent CA-1037526-A (CA)
Inventor: GROFF EUGENE R
IPC: B60B3/08
Filed: 1976-07-07
Granted: 1978-08-29
Abstract: Abstract of the Disclosure A wheel for carrying a track of a crawler vehicle comprises a hub; an annular rim; first and second spaced panels each connecting the hub to the rim; a plurality of first plates each having first and second ends and oppositely extending flanges on the first end, the flanges each being con-nected to a respective one of the first and second panels and each second end being connected to the hub with the first plates positioned at spaced locations; and a plurality of second plates each having first and second ends and oppositely extending flanges on the first end, the flanges being connected to a respective one of the first and second panels and each second end being connected to the rim with the second plates being positioned at spaced locations, the flanges of the second plates being a greater distance from the hub than the flanges of the first plates, and the second plates being arcuately spaced from the first plates.
Patent CA-1044279-A (CA)
Title: End-control, agricultural sprinkler irrigation system
Inventor: VOLLMER GEORGE
IPC: A01G25/09
Filed: 1976-08-25
Granted: 1978-12-12
Abstract: ABSTRACT        An agricultural sprinkler, irrigation system having wheel-mounted, sprinkler-carrying, pipe sections coupled together end-to-end with a centrally located mover unit to form a sidewise movable, elongate, water supply pipeline rotatable about its longitudinal axis, is powered by drive means mounted on the mover unit and controllable from an end of the pipeline by mechanism which includes means for transmitting rectilinear movement of a rotating member as recti-linear movement of a non-rotating member and an assembly of switches controlled by such movement-transmitting means and, in turn, con-torlling operation of the drive means. The movement-transmitting means preferably comprises a flanged sleeve, encircling the pipeline adjacent to the drive means for axial rotation therewith and movable back and forth along the pipeline, as the rotating member, and a reci-procable,rectilinear bar arranged to actuate the switches and having an antifriction end confronting and abutting against the flange of the sleeve, as the non-rotating member. Movement of the rotating sleeve toward the non-rotatable bar by increments that are predetermined by desired operation of the drive means is accomplished at an end of the pipeline by pulling a preferably flexible control line that extends to such end from connection with means for moving the sleeve toward the bar. Resilient means are provided for returning the bar and sleeve, and means are provided at the control end of the pipeline for holding the flexible con-trol line in any given operating position.
Patent CA-1084711-A (CA)
Inventor: DEEG EMIL W
IPC: C03C21/00
Filed: 1976-09-02
Granted: 1980-09-02
Abstract: ION EXCHANGE-STRENGTHENED SILICATE GLASS FILTER           FOR ULTRAVIOLET LIGHT                 Abstract of the Disclosure There is provided by the process of the invention a silicate glass which provides protection against mechanical hazards and short and long wavelength ultraviolet radiation while at the same time high transmission of light in the visible range of the spectrum is maintained.  By the process of the invention, the is corporation of cerium oxide into the glass followed by ion exchange strengthening using a mixture of potassium salt and silver nitrate provide a synergistic reduction in transmission of light in the ultraviolet range of the spectrum not heretofore obtainable by the use of either cerium oxide or silver staining of the glass alone.
Patent CA-1061325-A (CA)
Inventor: GARNER LLOYD L
IPC: E21B10/00
Filed: 1976-10-22
Granted: 1979-08-28
Abstract: Abstract of the  Disclosure A rock bit for recovering core samples is described, along with variations for drilling oil wells or the like.          In each of these embodiments a plurality of diamond cutters are mounted on the bit body for cutting rock by a shearing action.  Each diamond cutter is in the form of a thin diamond plate bonded to a carbide slug that is inserted into the bit body.  Means are also provided for limiting the depth of penetration of the diamond cutters into the rock formation being drilled   preferably in the form of rolling cone cutters having a plurality of carbide inserts protruding from Their surfaces.  The protrusion of the carbide inserts from the surface of the cutter cones is less than the length of the diamond plate.  This limits the depth that the diamond can penetrate in the rock and inhibits damage.  Typically the diamond cutters are mounted for cutting one portion of the hole area by shearing action and the rolling cone cutters are mounted for cutting another portion of its area by chipping-crushing action.
Patent CA-1057317-A (CA)
Inventor: JUSTICE JAMES C
IPC: E21C27/20
Filed: 1976-12-30
Granted: 1979-06-26
Abstract: ABSTRACT OF THE DISCLOSURE         A method and apparatus for forming bores in coal seams and the like and enlarging pre-existing bores. A mining machine includes a non-rotatable body member, a conveyor, such as an auger, in line with the body member, and a pair of wing cutters mounted on the body member for pivotal movement with respect thereto. The wing cutters are movable from a first position wherein they are generally in line with the body member and conveyor, to a second position wherein they are disposed outwardly with respect to the body member. The wing cutters will be in their first position during movement into a bore, and will be moved to and latched in a second position during movement out of the bore. A pilot cutting head in front of the body member may also be provided.  The wing cutters may comprise rotatable drums driven by cutting chains, and the drums are normally powered to rotate outwardly from the body member, in directions opposite to each other. bore may be formed by in-cutting and subsequent out-cutting with the wing cutters in a second position, or a pre-existing bore may be enlarged by moving the machine into the bore, then moving the wing cutters to a second position and withdrawing the machine from the bore.
Patent CA-1067621-A (CA)
Inventor: SCHWARTZ SAMUEL
IPC: G06F5/01
Filed: 1977-02-18
Granted: 1979-12-04
Abstract: ABSTRACT OF THE DISCLOSURE         Logical and arithmetic shifts, rotations, and compo-sitions of digital words can be preformed directly on the data bus by use of registers which are selectively coupled to the data bus through bidirectional devices.  The registers may be buffered latches having a tri-stated buffered output so that the contents of the register will not be altered by stray charges stored in the distributed capacitance of the selected data bus line.
Patent CA-1066289-A (CA)
Inventor: HORGAN STEPHEN W
IPC: C07D213/127
Filed: 1977-03-21
Granted: 1979-11-13
Abstract: PROCESS FOR PREPARING 2-(2,2-DICYCLOHEXYLETHYL)PIPERIDINE               ABSTRACT OF THE DISCLOSURE 2-(2,2-Dicyclohexylethyl)piperidine is prepared via the catalytic hydrogenation of 2-(2,2-diphenyl-ethenyl)pyridine in a single step.  High yields are obtained using an anhydrous Raney nickel catalyst.
Patent CA-1089614-A (CA)
Inventor: KANAO SHIRO
IPC: B29C53/58
Filed: 1977-05-04
Granted: 1980-11-18
Abstract: ABSTRACT OF THE DISCLOSURE         A method and an apparatus for producing a tube from a strip of synthetic resin and/or unvulcanized rubber incorpora-ting a vulcanizing agent by winding the strip on a former supported by a frame in the manner of a cantilever to shape the strip into a tubular body and heating the tubular body on the former by a heater while sending out the tubular body toward the free end of the former.
Patent CA-1073068-A (CA)
Inventor: HASHIMOTO TETSUO
IPC: H01R9/05
Filed: 1977-06-20
Granted: 1980-03-04
Abstract: ABSTRACT OF THE DISCLOSURE The present invention relates to coaxial connectors, and in particular to apparatus for securing the outer conductor of a coaxial cable to a connector. Prior art coaxial connectors conventionally use a hollow ferrule having a slanted forward face. In use, the cable is passed through the center of the ferrule, and the outer conductor is folded back over the slanted face. The ferrule is then secured in the connector body such that the outer conductor is squeezed between a washer and the slanted face of the ferrule. The conventional apparatus was designed for use with braided conductors and is ill-suited for use with coaxial cables having a spirally wound outer conductor or an essentially tubular outer conductor formed from a solid sheet, since it is impossible to fold such conductors back over the slanted face of the ferrule. The present invention provides an apparatus which is equally wall suited for use with coaxial cables having any of the above-mentioned types of conductors. The apparatus of the present invention comprises a truncated cone shaped member having an annular groove adjacent the larger end thereof, and the outer conductor is deformed over the cone shaped member. An expandable annular ring is slid over the cone shaped member and into the annular groove. Then a clamping member is secured over the cone shaped member and the annular ring, squeezing the outer conductor between the outer surface of the cone shaped member and the inner surfaces of the clamping member and annular ring.
Patent CA-1096908-A (CA)
Inventor: ROOD ALVIN A
IPC: B05B1/02
Filed: 1977-06-22
Granted: 1981-03-03
Abstract: AN AIRLESS SPRAY NOZZLE AND METHOD OF MAKING IT     Abstract of the Disclosure An airless spray coating nozzle is made by cutting interpenetrating grooves into opposite sides of a nozzle tip blank.  The groove on the pressurized or entrance side of the tip has a bottom portion which is wedge-shaped in cross section. The groove on the unpressurized or exit side of the tip has a bottom portion which is trapezoidal in cross section.  Both grooves are cut into the nozzle tip with a grinding wheel after the tip has been hardened.
Patent CA-1107373-A (CA)
Inventor: GALVIN AARON A
IPC: G08B17/103
Filed: 1977-07-15
Granted: 1981-08-18
Abstract: A B S T R A C T       A smoke detector system including two projected beams operat-ing in parallel, the outputs of which are processed to distinguish between outputs caused by smoke and outputs caused by other condi-tions affecting either or both beams.  By comparing both the oc-currence and the duration of reduced intensity outputs from the two beams, discrimination against false-alarm conditions is achieved.
Patent CA-1084638-A (CA)
Inventor: FINCH ROBERT E
IPC: B03D1/02
Filed: 1977-08-02
Granted: 1980-08-26
Abstract: ABSTRACT OF THE DISCLOSURE         A method of increasing the yield of oxidized coal or coal from surface or strip mines by about 23-30% by weight where said coal particles are concentrated by froth flotation. The method consists of utilizing as a promoter or frothing aid about 0.03 - 0.09 lbs/ton of said coal of a water-soluble anionic linear addition polymer of a polymerizable monoethylenically unsaturated compound having an average molecular weight of about 100,000 to 1,000,000 or more with a preferred range of 1,000,000 or more.  This method is also utilized where oxidized coal is admixed with a major amount of deep coal amounting up to 80 - 95% and greater by weight of the mixture.   A preferred promoter or frothing aid for oxidized coal is sodium polyacrylate and the promoter or frothing aid is used in an aqueous solution or dispersion in preferred operable percentiles of .5 - 1.5% by weight of the solution or dispersion.
Patent CA-1099118-A (CA)
Inventor: SNOW BARTON H
IPC: F02K3/06
Filed: 1977-08-26
Granted: 1981-04-14
Abstract: METHOD AND APPARATUS FOR WINDMILL STARTS            Abstract A torque converter is interconnected between the fan and core rotor of a turbofan engine such that the speed of the core rotor can be boosted from windmill speed to a speed sufficient to allow an in-flight start by selectively extracting power from the windmilling fan during the start sequence of the engine. Control logic is included to automatically drain the oil from, and thereby unload, the torque converter whenever the engine is in the operating speed region. Further assurance is provided by an overrunning clutch which decouples the system when the core rotational speed exceeds the converter output.
Patent CA-1092132-A (CA)
Inventor: LAFOREST JACQUELINE S
IPC: C07D333/22
Filed: 1977-09-01
Granted: 1980-12-23
Abstract: ABSTRACT OF THE DISCLOSURE   2,3-Dichloro-4-(2-thenoyl) phenoxyacetic acid (tienilic acid) is prepared by reacting (2,3-dichloro-4-carboxy) phenoxyacetic acid with thiophene in the pre?ence of a dehydration agent.  The (2,3-dichloro-4-carboxy) phenoxyacetic acid is a novel compound.
Patent CA-1103632-A (CA)
Inventor: RUHL HERMAN
IPC: G01D9/32
Filed: 1977-09-23
Granted: 1981-06-23
Abstract: ABSTRACT OF THE INVENTION     The present invention relates to a vehicle recording system for recording a multiplicity of operating conditions in a chart.  The system includes a recorder, which is adapted to permit continuous inscribing while moving across the chart at essentially right angles to its direction of move-ment, a positioning mechanism for moving the inscriber to recording positions in response to a single control signal and a control signal selector to selectively direct different control signals for the multiplicity of operating conditions to the servocontrol mechanism.  The control signals themselves are the result  of two separate input signals which are com-bined. One of these input signals identifies a partic ular operating condition and the other of the input signals identifies the value of that particular operating condition for simultaneous appropriate recording of the identification and value of a particular operating condition on the chart.