baber/WOPTO huggingface dataset:
Patent CA-1038512-A (CA)
Inventor: ALLEN EDGAR R
IPC: H04J1/16
Filed: 1975-05-29
Granted: 1978-09-12
Abstract: ABSTRACT          A measure of the noise performance of an FDM system can be made by making measurements when the system is carrying traffic.  The technique consists of creating a quiet channel in the system, and measuring the noise level in this quiet channel.  The tester operates by Teeing off the broad band incoming signal, automatically attenuating the broad band signal to a predetermined level, and then measuring the power leve? in a narrow bandwidth lying within a single channel.  The measurement is performed using an automatic attenuator controlled by a feedback loop containing, band pass filters, superhetrodyne  detectors, a comparator controlling a counter, which in turn controls the automatic attenuator.
Patent CA-1047264-A (CA)
Inventor: CRAFTON PAUL A
IPC: E21D9/12
Filed: 1975-06-23
Granted: 1979-01-30
Abstract: OMNIDIRECTIONAL DRILLING SYSTEM                    Abstract of the Disclosure A drilling or tunneling system in which a first, relatively large diameter bore is made, the loosened material is mixed with a stabilizing material, and a plurality of smaller permanent ducts are formed behind the boring unit.     Power, control information, stabilizing material and excess material are conveyed to and from the unit by means of a series of mobile carrier units which travel through the smaller ducts and which function in the manner of an endless conveyor.
Patent CA-1039105-A (CA)
Inventor: RAIBLE HERMANN
IPC: B41L25/00
Filed: 1975-07-10
Granted: 1978-09-26
Abstract: ABSTRACT OF THE DISCLOSURE       There is disclosed a duplicating machine, comprising: a master cylinder equipped with a clamp operable to a closed mode for clamping one end of a master to the master cylinder and to an open mode for ejecting the master; a treating unit for converting the master as it is being wrapped around the master cylinder, a feed mechanism operable from an off condition-to an on condition for transporting the master from a supply source to the treating unit; conveyor rollers for transporting the master from the treating unit to the clamp; a drive gear for selectively driving the master cylinder at a printing speed and a starting speed; a switching arrangement causing the master cylinder to operate at the starting speed when the feed mechan-ism is in the on condition and when the conveyor rollers are operable; a selectable gear drive causing the feed mechanism to be in the off condition and for rendering the conveyor rollers operative for delivering one end of the master to the clamp; a cam controlled switch operable when the master is wrapped completely around the master cylinder for causing the master cylinder to operate at the printing speed.  The invention avoids the necessity in prior art devices of providing a conven-tional waiting station for holding masters subsequent to treat-ment in a conversion bath and prior to attachment to the master cylinder.
Patent CA-1044750-A (CA)
Inventor: FITZNER ARTHUR O
IPC: F02P7/03
Filed: 1975-08-07
Granted: 1978-12-19
Abstract: IGNITION SYSTEM FOR INTERNAL COMBUSTION  ENGINES HAVING TIMING STABILIZING MEANS                   Abstract of the Disclosure Ignition in a six-cylinder internal combustion engine is supplied by a pair of similar alternator-driven, alternate-firing, capacitor discharge ignition systems, each discharged to the several spark plugs of its own three cylinders by individual controlled rectifiers. A common trigger pulse generator is magnetically coupled to the engine flywheel and includes three individual trigger coils for generating properly referenced and angularly spaced pulses, each coil producing alternating positive and negative polarity pulses. A steering diode network connects one end of each triggering coil to a related controlled rectifier for an associated spark plug in one cylinder group and the opposite end of each coil to the controlled rectifier for a spark plug in the second cylinder group. Each ignition system includes a bias capacitor connected in series with the output of the three triggering coils to maintain an essentially constant ignition angle relative to trigger coil position over a wide range of engine speeds, and to establish back bias on each controlled rectifier gate-to-cathode junction during the intervals between trigger pulses. A pair of series connected resistors is connected in parallel with the bias capacitor with the center nodes supplying only a portion of the bias capacitor voltage to the gate to cathode junction of the related controlled rectifier in the absence of the triggering pulse. For a three cylinder engine a single one of the ignition systems is employed, and uses a wye-connection of the trigger coils in the trigger generator, the neutral wire being brought out and connected to the bias capacitor.
Patent CA-1038034-A (CA)
Inventor: HEIJNE LEOPOLD
IPC: G01N27/12
Filed: 1975-08-14
Granted: 1978-09-05
Abstract: ABSTRACT:                Measuring cell for determining oxygen concentrations in a gas mixture, which cell comprises two elements made of a semiconductive oxidic material which is doped so as to have n-type and p-type conductivity respectively and which are separated by a metal layer, the electric resistance of the said semiconductive oxide depending upon the oxygen pressure.  The cell is used for carburation control in an internal combustion engine.
Patent CA-1069353-A (CA)
Title: Swept jet oral irrigator
Inventor: STOUFFER RONALD D
IPC: A61C17/02
Filed: 1975-09-19
Granted: 1980-01-08
Abstract: SWEPT JET ORAL IRRIGATOR                ABSTRACT OF THE DISCLOSURE         An improved oral irrigation technique is characterized by an oscillatory swept water jet issued to sweep back and forth at high frequencies across the user's gums and teeth.  High frequency operation is achieved by oscillating the jet itself rather than the jet-issuing body.  The high frequency sweeping jet effects faster cleaning action and more effective gum massage than prior art pulsed jet irrigators having lower effective operating frequencies.
Patent CA-1037517-A (CA)
Inventor: MIERS BRUCE W
IPC: F16F3/08
Filed: 1975-10-03
Granted: 1978-08-29
Abstract: A B S T R A C T           Vibration damping means for a mounting post of a roll-over protection canopy of a heavy vehicle such as a tractor, earth mover, or the like.  A hollow square post has slightly concave walls and slides over an upright square mounting stub on the vehicle, to which it is secured by a bolt which impales the post and the stub.  A reduced upper end portion of the stub receives a vibration damping member which is in the form of a hollow square.  The member has rounded corners which fit snugly in the corners of the post, and the span across opposite faces of the member is less than the internal width of the post so as not to bind in the post.
Patent CA-1055161-A (CA)
Title: Automatic writing systems and methods of word processing therefor
Inventor: SWANSTROM H WALLACE
IPC: B41J5/30
Filed: 1975-11-07
Granted: 1979-05-22
Abstract: Automatic writing systems and methods of word pro-cessing therefor are provided in accordance with the teach-ings of the present invention wherein a central processor and a plurality of peripherals including at least keyboard means, printer means, buffer means and means for recording data on a record media are each connected to a common data bus, a common status bus and a common instruction word bus and a printer data storage peripheral means is connected to said common data bus and said common instruction word bus.          Alphameric character data, format data, and function data may be entered from the keyboard and the presence of such data is indicated to the central processor on the common status bus.          Upon receipt of a data presence condition, program control is initiated by the central processor calculated to achieve the designated function or functions with the alphameric or format data presented.  The manner of asynchronous operation in data translation between a plurality of peripherals and a central processor enables a multitude of editing, revision, control and manipulation steps to be accomplished in the central pro-cessor under program control while allowing the overall automatic writing system to be highly flexible in operation and readily expandable.
Patent CA-1038706-A (CA)
Inventor: TRUNZO FLOYD F
IPC: H01F41/12
Filed: 1975-11-26
Granted: 1978-09-19
Abstract: A METHOD OF MAKING ELECTRICAL COILS    HAVING IMPROVED STRENGTH   AND OIL PERMEABILITY     ABSTRACT OF THE DISCLOSURE          A porous, electrical insulating adhesive substrate is made, by uniformly coating a flexible, porous sheet ma-terial with adhesive resin particles having an average par-ticle size of between about 37 to 420 microns, the adhesive coating covering from about 5 to 50 percent of the sheet ma-terial area in a non-patterned random distribution, and then heating the coated sheet material between about 85° to 250°C, forming a discontinuous 0.25 to 7 mil dry coating of discrete adhesive particles having substantially rounded cross sections bonded to the sheet material, said adhesive coating covering from about 5 to 50 percent of the sheet material area in a non-patterned random distribution; the coated sheet may then be inserted as oil permeable layer insulation between high voltage windings and low voltage windings and between layers of high and low voltage windings in a wound coil assembly, after which the assembly can be heated at a temperature and for a time effective to securely bond the winding layers together, to provide a porous, oil permeable, bonded trans-former coil assembly.
Patent CA-1056496-A (CA)
Inventor: LYNCH EDWARD I
IPC: H04N5/21
Filed: 1976-01-08
Granted: 1979-06-12
Abstract: ABSTRACT OF THE DISCLOSURE           A transistor provides a substantially noise-immune hard clamp circuit for the video signal in a television receiver.  Such a clamp circuit is rendered increasingly immune to noise in proportion to an increase in frequency above the sync frequency of the video signal by bypassing the emitter-base clamp diode with a capacitor.  The effects of the base circuit impedance on the clamp im-pedance are reduced by employing a high beta transistor. In this manner impedance means can be employed to limit loading of the video signal by the capacitor.  Means are also provided to prevent any voltage supply irregularities from affecting the DC-restored vido signal, so that sub-stantially 100% DC restoration is achieved.
Patent CA-1060540-A (CA)
Title: Flat alkaline cell with positive and negative terminal connections and a third terminal connection for an auxiliary electrode
Inventor: BEATTY THEODORE R
IPC: H01M10/34
Filed: 1976-02-16
Granted: 1979-08-14
Abstract: FLAT ALKALINE CELL WITH POSITIVE AND NEGATIVE   TERMINAL CONNECTIONS AND A THIRD TERMINAL  CONNECTION FOR AN AUXILIARY ELECTRODE               Abstract of the Disclosure A flat alkaline cell is described wherein an electrode assembly including at least a pair of flat electrode elements of opposite polarity having a porous separator containing an alkaline electrolyte interposed therebetween and a current collector disposed adjacent to and in electrical connection with one of the pair of electrode elements at one end of the electrode assembly, are enclosed within a sealed, liquid impervious plastic film envelope having an opening in one wall thereof which exposes at least a portion of the current collector for making external electrical connection therewith, and wherein a layer of an adhesive sealant which is non-wettable by the alkaline electrolyte, tightly adheres and seals together the current collector and the wall of the envelope at least around the periphery of the opening.  The exposed portion of the current collector constitutes a first terminal connection to which a wire lead or the like may be attached.  A second and third terminal connection are provided in the sealed envelope, the former being in electrical connection with the other of the pair of electrode elements of opposite polarity and the latter being in electrical connection with an auxiliary electrode.
Patent CA-1041899-A (CA)
Inventor: GRAY WILLIAM W
IPC: E21B43/24
Filed: 1976-03-02
Granted: 1978-11-07
Abstract: STEAM INJECTOR APPARATUS FOR WELLS          ABSTRACT OF THE DISCLOSURE       An apparatus and method for injecting pressurized fluid into a well are disclosed.  The apparatus to inject pressurized fluid into a well comprises a combustion chamber, having a coolant jacket positioned to circulate coolant over outer walls of the combustion chamber and into the combustion chamber around the burner such that vapor flows between a flame and inner walls of the combustion chamber.  The injected coolant forms a vapor barrier between the flame and the com-bustion chamber walls and is pressurized for delivery into a well.  The combustion chamber can be affixed to the well casing at the surface or the combustion chamber can be used as a "down-hole" vapor generator apparatus.
Patent CA-1084222-A (CA)
Inventor: KORVER GAILERD L
IPC: D01F6/62
Filed: 1976-03-30
Granted: 1980-08-26
Abstract: Abstract of the Disclosure There is disclosed an improved process for preparing textile and industrial fibers by melt extruding a polyester resin from melt spinning apparatus to form filaments while adding to and reacting with said polyester resin while in said melt spinning apparatus a monofunctional epoxide wherein the improvement comprises incorporating in said polyester resin prior to extrusion thereof at least one catalytic compound consisting of an alkali metal salt in an amount ranging from about 0.01 to 10.0 parts by weight (calculation based on the alkali metal) per 1000 parts by weight of the polyester.
Patent CA-1046737-A (CA)
Inventor: VAN GOMPEL JAMES J
IPC: F16B21/16
Filed: 1976-04-05
Granted: 1979-01-23
Abstract: ABSTRACT        A snap lock seal in which a first locking member is formed with a plurality of transverse, circumferential tapered grooves which provide transversely extending shoulders and which are separated by a first predetermined distance from adjacent grooves, and a second locking member having a central opening and being engageable with the first locking member with a plurality of snap rings transversely mounted within the central opening of the second locking member and prevented from longitudinal movement, the snap rings having a spacing between each other which is different from the spacing between the plurality of tapered grooves in the first locking member, and receivable in said tapered grooves such that at least one of the snap rings locks against one of the shoulders to lock the first and second locking members to prevent longitudinal movement therebetween in a first longitudinal direction.
Patent CA-1047686-A (CA)
Title: Polyurethane prepolymers, rebonded polyurethane foams and methods of forming rebonded polyurethane foams
Inventor: DUFFY ROBERT D
IPC: C08J9/22
Filed: 1976-06-14
Granted: 1979-01-30
Abstract: ABSTRACT OF THE DISCLOSURE        This invention relates to novel polyurethane prepolymers which consist essentially of the reaction product of polyoxyalkylene polyol having a critical oxyethylene content and an isocyanate con-stituent, the reaction product having a defined level of free NCO. Particularly useful prepolymers are produced using a tolylene diisocyanate residue.  The prepolymers provided have outstanding utility for rebonding polyurethane foams for applications such as, for example, carpet underlays and allow significant reductions in the adhesive level used in forming such rebonded foams and in the demolding cure times in comparison with presently used prepolymer adhesives.  The prepolymers are also useful for applications in which polyurethane prepolymers are used presently such as, for example, in hydrophilic foams.
Patent CA-1075867-A (CA)
Inventor: PIVAR STUART
Filed: 1976-06-14
Granted: 1980-04-22
Abstract: ABSTRACT         An apparatus is provided for moulding a hollow plastic article.  This apparatus comprises a mould having an axis of rotation which is disposed during one phase of the moulding operation in horizontal attitude.  The mould has an opening symmetrically disposed about this axis, which opening is of a size to enable the removal of the moulded article from the mould when moulding is completed.  A charge-retaining member is provided in association with the mould adjacent the aforesaid opening, this member being perpendicular to the a-foresaid axis and defining an opening symmetrically disposed about this axis and of a size to permit the insertion of a plastic charge into the mould during its rotation.  The afore-said member can be integral with the mould or can be part of a removable cover.  An elongated burner is provided extending along the mould parallel to the horizontal axis, the burner having an extent such that it does not extend beyond the change-retaining member.  Blowers are provided for blowing cooling air onto the mould and through the aforesaid openings when moulding has been completed.  Insofar as the associated method is concerned, the aforesaid mould can be preheated and a plastic charge inserted into the mould after this preheating, the charge being fused and thereafter cooled, the article which is formed being removed from the mould via the opening therein or via the opening in the charge-retaining member.          The plastic charge is heated generally exclusively by heat passing through the mould, this heat being generally prevented from passing through either of the aforesaid openings.
Patent CA-1060452-A (CA)
Inventor: WHITE RALPH L JR
IPC: A61K31/415
Filed: 1976-06-30
Granted: 1979-08-14
Abstract: ABSTRACT OF THE DISCLOSURE A series of 3-(aminoacyl)-1-([5-(substituted phenyl)furfurylidene] amino) hydantoins of general formula   wherein X is 4-nitro, 3,4-dichloro, 4-fluoro, 4-chloro, 4-cyano or 4-methoxy; n is 0-4; and R is hydrogen, methyl or benzyl, useful as muscle relaxants, and a process for the preparation thereof, are described.
Patent CA-1068669-A (CA)
Inventor: CHRISTOPHLIEMK PETER
IPC: C01B39/22
Filed: 1976-07-20
Granted: 1979-12-25
Abstract: ABSTRACT OF THE DISCLOSURE             A process for the production of zeolitic alkali metal aluminosilicates by the reaction of aqueous alkali metal silicate solutions with an aqueous alkali metal aluminate solution containing sulfate anions at temperatures of 0°C to 110°C under a shearing type of agitation and conversion of the amorphous precipitate to crystalline forms by maintaining an aqueous suspension of the amorphous forms at temperatures of 40°C or over for a time sufficient to effect crystalliza-tion, whereby formation of substantial amounts of inactive nosean are avoided.                       - A -
Patent CA-1067524-A (CA)
Inventor: NOAKES JACK E
IPC: C04B35/573
Filed: 1976-09-21
Granted: 1979-12-04
Abstract: METHOD OF FORMING A SILICON CARBIDE ARTICLE - I   ABSTRACT OF THE DISCLOSURE           A method of forming a silicon carbide article is disclosed.  Selected weight percentages of silicon carbide particles, graphite particles, if desired, and a thermosetting binder are mixed together and molded into an article by molding techniques which operate on the basis that the thermosetting binder forms a continuous medium about all the particles supported therein.  The molded article is heated in the absence of oxygen and the thermosetting binder breaks down to form a low density, vitreous carbon phase.  The article is heated in an oxygen containing environment to remove excess surface carbon.  The article is heated in the absence of oxygen to a selected temperature at which the article is maintained for a period of time in a gaseous environment consisting of nitrogen preferably with a small amount of hydrogen therein.    The hydrogen-nitrogen treatment is effective to cleanse the article and insure that there is a sufficient volume of pores throughout the article for a later siliciding operation to be carried out thereon.  The article is silicided at an elevated temperature by penetration of the article through its pore structure with a reactable form of silicon.
Patent CA-1090521-A (CA)
Inventor: ASHIDA KANEYOSHI
IPC: B29B7/00
Filed: 1976-09-22
Granted: 1980-12-02
Abstract: METHOD FOR PRODUCING FIBER-REINFORCED POLYMER FOAM            ABSTRACT OF THE DISCLOSURE:        Flexible or rigid polymer foam reinforced with fibers such as glass fibers or synthetic fibers is produced by supplying at least one fibrous layer downwardly, supplying facing members downwardly adjacent the layer from the opposite sides thereof at a certain angle, feeding a foamable resinous liquid, for example, two-component type polyurethane, polyisocyanurate or polyoxazolidone foam-forming liquid to the opposite surfaces of the layer, pass-ing the layer and the facing members through a gap which is narrower than the thickness of the layer to compress the layer and to enable the foamable liquid to penetrate into the layer, and allowing the foamable liquid to foam under restricted or unres-tricted conditions.  Foam in which fibers are uniformly distribut-ed has improved physical and chemical properties, such as cushion-ing properties, strength, compressive strain and flame-resistance.
Patent CA-1039116-A (CA)
Inventor: BOLLINGER LUTHER L SR
IPC: B61D19/00
Filed: 1976-09-28
Granted: 1978-09-26
Abstract: ABSTRACT OF THE DISCLOSURE:        Apparatus for operating sliding plug-type railway car doors, of the type in which the front end of the door track is curved toward the car side, the front portion of the door is mounted directly on a track-mounted carriage, and the rear por-tion of the door is mounted via cranks on a track-mounted carriage, comprises longitudinally movable rack and pinion means on the car side adjacent the door, and mechanism on the door, actuable by longitudinal movement of the rack and pinion means for unlocking the door, rotating the door mounting cranks to swing the rear edge of the door in and out of the door opening, and moving the door longitudinally of the car into and out of registry with the door opening therein.
Patent CA-1052624-A (CA)
Inventor: SHENOHA JAMES L
IPC: B41F17/24
Filed: 1976-11-22
Granted: 1979-04-17
Abstract: ABSTRACT             An imprinting device for selectively marking a surface, for example a container, web, or the like, comprising a frame member having a power cylinder mounted thereon with a power arm ram reciprocatable in a first direction. A rigid non-sliding linkage connects the ram to a pivotable yoke member carried by the frame which in turn is pivotably connected to a type carrying member carrying a stamp head. The type carrying member is pivotable around a fixed point on the frame through a lost motion connection. The stamp has a vertical stamping movement and a horiztonal inking movement. In the vertical movement the stamp projects above a plane of the frame while in the horizontal movement it is brought into contact with a disposable ink cartridge carried by the frame.
Patent CA-1071198-A (CA)
Inventor: GUBIN JEAN
IPC: A61P9/06
Filed: 1977-02-18
Granted: 1980-02-05
Abstract: ABSTRACT OF THE DISCLOSURE       Novel indolizine derivatives of the general formula:                                and pharmaceutically acceptable acid addition salts thereof, wherein R represents a branched- or straight-chain alkyl radical having from 1 to 5 carbon atoms, a phenyl radical, a mono-fluoro-, mono-chloro or mono-bromo-phenyl, a di-fluoro-, di-chloro- or di-bromo-phenyl radical, a methoxy-phenyl radical or a methyl-phenyl radical optionally substituted on the aromatic moiety by an atom of fluorine, chlorine or bromine and R1 and R2, which are different represent a hydrogen atom or a group of the formula:       wherein R3 and R4, which are identical, each represent a hydrogen atom or a methyl radical, Am represents a dimethylamino, diethylamino, di-n-propylamino, di-n-butylamino or morpholino group and n is an integer in the range of from 2 to 6 inclusive. They are effective for treating certain pathological or otherwise abnormal conditions of the heart and more particularly sinus tachycardia.  Certain of them are also useful in the treatment of angina pectoris and cardiac arrhythmia.