baber/WOPTO huggingface dataset:
Patent CA-1044273-A (CA)
Inventor: MCWETHY IRVIN E
IPC: F16L37/22
Filed: 1976-10-07
Granted: 1978-12-12
Abstract: QUICK-CONNECT TUBULAR COUPLINGS    ABSTRACT OF THE DISCLOSURE         A quick-connect tubular coupling for a pair of tubes one of which has an end portion telescopically disposed within an end portion of the other.  An annular cage is externally mounted on the one or inner tube in axially spaced relation to the free end of its end portion.  The cage is held on the one tube against axial displacement along the latter.  The end portion of the other or outer tube is flared outwardly at its free end and extends in the cage.  A circular spring means is interposed between the flared end portion of the other tube and the cage and when so disposed prevents axial movement of the one tube relative to the other in telescopic disengagement direction.     Between the telescoped end portions are a plurality of "O" rings that are compressed in a sealed mode to prevent leakage through the coupling.
Patent CA-1060235-A (CA)
Inventor: HOBACK RONALD D
IPC: F16G1/28
Filed: 1976-11-04
Granted: 1979-08-14
Abstract: IMPROVED BELT DRIVE AND BELTS AND PULLEYS THEREFOR     ABSTRACT OF THE DISCLOSURE     A belt drive and belt and pulleys therefor in which a toothed power transmission belt operates in conjunction with toothed pulleys.  The dimensional relationship between the belt teeth and pulley teeth is such that in the longitudinal extent of the belt between the pulleys the height of the belt teeth is greater than the height of the pulley teeth or depth of the pulley grooves while as the belt travels around the pulleys the extreme outwardly facing portions or outer extremities of the belt teeth contact the bottom of the pulley grooves and at the same time the belt teeth are compressed to reduce their height so that the extreme radially outwardly facing portions or outer extremities of the pulley teeth come in contact with the bottoms of the belt grooves.          The invention is particularly useful in a synchronous or positive drive system for increasing belt life by relieving stresses on the tensile member in the area between teeth of a positive drive power transmission belt.
Patent CA-1074791-A (CA)
Inventor: MARSILI LEONARDO
IPC: A61K31/395
Filed: 1976-11-09
Granted: 1980-04-01
Abstract: "NOVEL RIFANYCIN COMPOUNDS"                     Abstract of the Disclosure Novel rifamycin compounds having high antibiotic activity such compounds are obtained by reacting 3-amino-rifamycin SV with an aldehyde, particularly a heterocyclic aldehyde.
Patent CA-1059139-A (CA)
Inventor: SUH JOHN T
IPC: C07D317/58
Filed: 1976-11-15
Granted: 1979-07-24
Abstract: PREPARATION OF ETHYLAMINE DERIVATIVES              ABSTRACT OF THE DISCLOSURE          Compounds of the formula:                    where R and R' independently represent hydrogen or C1 to C4 alkyl, are formed by catalytically hydrogenating a compound of the formula:                      where X is halogen, using platinum oxide as catalyst. The compounds are useful as intermediates in the pro-duction of bronchodilator compounds.
Patent CA-1055135-A (CA)
Inventor: SLANE FRANCIS L
IPC: B60L3/00
Filed: 1976-11-26
Granted: 1979-05-22
Abstract: ABSTRACT OF THE DISCLOSURE     A train monitoring and reporting system in which each car of a multi-car train is provided with senesors to monitor brake, door, motor and other functions.  A controller in each car sequentially and repetively reviews the condition of each sensed function and evaluates the conditions to determine whether a fault condition exists.  The evaluation result is stored and the review is con-tinued and repeated.  The lead car of the train repetitively and sequentially interrogates the storage units in each car for each type of fault condition, stores the responses to the interroga-tion and displays to the motorman any faults reported.  The cars communicate through a multiplex data link system which connects the cars in series in a multiplex current loop.  The number of times each fault occurs is counted, the count being then available for readout by maintenance personnel.
Patent CA-1098764-A (CA)
Inventor: POZNIAK NORMAN J
IPC: B41N1/06
Filed: 1976-12-01
Granted: 1981-04-07
Abstract: Abstract of the Disclosure A photoengraving plate is taught having a sheet of etchable metal such as magnesium laminated to a self--supporting base structure in which the layer next adjacent and bonded to the etchable metal sheet is a non-metallic, preferably organic plastic, layer which is substantially inert to the etchant composition to be used in the photoengraving process.  Preferably the metal sheet is of minimal thickness corresponding to the maximum intended depth of etch, e.g. 30 mils.  An exemplary plate has a magnesium sheet bonded to an ethylene/acrylic acid copolymer layer that is bonded to a poly(ethylene terephthalate) sheet.     17,911-F
Patent CA-1054227-A (CA)
Inventor: ROACH MAURICE P
IPC: G01N27/90
Filed: 1977-01-12
Granted: 1979-05-08
Abstract: METHOD FOR EVALUATING ELECTRODE        COMSUMPTION RATE                 ABSTRACT OF THE INVENTION          A method for determining the expected consumption rate of graphite electrodes is disclosed.  An electrical signal is applied to a number of electrodes to generate eddy currents therein which are sensed to provide eddy current values. The consumption rate of the electrodes in use in an electric arc metallurgical furnace are measured.  A standard eddy current value (with respect to the measured consumption rates) is determined, for example, by plotting the eddy current values and measured consumption rates.  Thereafter, eddy current values obtained from other electrodes are compared with the standard eddy current value to determine the expected consumption rate.
Patent CA-1105882-A (CA)
Inventor: HILAIRE PIERRE
IPC: C25B1/36
Filed: 1977-01-28
Granted: 1981-07-28
Abstract: IN THE CANADIAN PATENT OFFICE     PATENT APPLICATION entitled "IMPROVEMENTS IN HORIZONTAL ELECTROLYSERS"     in the name  of COMMISSARIAT A L'ENERGIE ATOMIQUE     ABSTRACT OF THE DISCLOSURE     A horizontal electrolyser comprises a mercury cathode, an anode located above the cathode and an inclined diaphragm separating the cathode from the anode, the cathode, diaphragm and anode being substantially parallel.  The cathode consists of mercury flowing longitudinally in a plurality of channels which are vertically offset with respect to each other.
Patent CA-1092035-A (CA)
Inventor: MODROVICH IVAN E
IPC: C07H19/207
Filed: 1977-03-14
Granted: 1980-12-23
Abstract: ABSTRACT OF THE DISCLOSURE     Labile coenzyme, such as nicotinamide-adenide dinucleotide, reduced (NADH2) is stabilized by treatment with organic sol-vent such as 1,2 propanediol in the presence of at least 1% by volume of a solid, inert hydroscopic agent such as 10% by volume of molecular sieve.  The stabilized composition shows excellent shelf life and the container may be repeatedly opened for use without degradation of labile NADH2.  In another embodiment of the invention, the hygroscopic agent may be removed after stabilization has been achieved.
Patent CA-1052015-A (CA)
Inventor: LINGLE HARRISON C
IPC: A47C31/06
Filed: 1977-03-23
Granted: 1979-04-03
Abstract: ABSTRACT A metallic clip designed for holding the end bar of a sinuous cushion-supporting spring in position on one rail of an article of furniture and also having associated there-with jaw portions which straddle the rail and, when pressed inwardly against the rail, seize the sides of such rail and maintain the clip firmly in position on the rail.  In one form of the invention, a string of such clips are held together in slightly spaced side-by-side fashion by a liner strip which is seated within the reentrant or reverse bends of the clips so that individual clips may be successively severed from the strip for application to the rail.  In a modified form of the clip, means are provided whereby the clips may be stacked together loosely against complete separation so that individual clips may be successively removed from the stack at will for rail application.  In either form, the string or stack is adapted for magazine feeding in association with a suitable automatic clip-applying tool by means of which the clips are successively applied to the rail.
Patent CA-1072380-A (CA)
Inventor: PERSHA THOMAS J
IPC: G03B21/11
Filed: 1977-03-28
Granted: 1980-02-26
Abstract: `      VERTICALLY SCANNING MICROFILM READER     Abstract of Disclosure The inventive microfilm reader and reader-printer has a film gate which is anchored to the chassis of the reader or reader-printer and which is entirely separate from a light system, lens mount, and focusing system which float up and down with respect to the film gate and chassis.  The floating system is mounted on an elevator mechanism which lifts or lowers it relative to the film gate to scan across the width of the film.  A prism is included in the lens system to rotate and vertically align the projected image.          A combination of the movements of the elevator mechanism and prism enables any vertical segment of the microfilm to be scanned, selected, and read in a vertical orientation.
Patent CA-1044128-A (CA)
Inventor: HAYAKAWA HIROSHI
IPC: B60C13/00
Filed: 1977-03-30
Granted: 1978-12-12
Abstract: Abstract of the Disclosure A foldable pneumatic tire comprising an annular tread, bead portions and a pair of sidewalls extending therebetween collapsible inwardly and concentrically to said tread.  Each of the sidewalls is formed in an inwardly bent zone when folded with one or more circumferential grooves opening at the outer surface thereof, to effectively prevent wrinkles which would otherwise occur in the bent zone resulting ultimately in cracks in the sidewalls after they have been maintained in a folded condition for a long period of time.
Patent CA-1103841-A (CA)
Inventor: LAGANIS DENO
IPC: C08L67/00
Filed: 1977-03-30
Granted: 1981-06-23
Abstract: ABSTRACT OF THE DISCLOSURE Water soluble polyester-polyimide prepolymers are prepared (1) having 5 to 60%, preferably at least 35%, of polyimide, (2) an excess hydroxyl content in ex-cess of 60% and preferably more than 100%, and (3) a num-ber average molecular weight of 600-1300.  To water solu-bilize the prepolymers formed, there are added amines, preferably tertiary amines.  The products are useful as wire enamels.  To enhance the thermoplastic flow of the enamel. there are added organic titanates.
Patent CA-1077885-A (CA)
Inventor: LEVY RICHARD H
IPC: B01D59/50
Filed: 1977-05-30
Granted: 1980-05-20
Abstract: ABSTRACT OF THE DISCLOSURE           A system for enhancing effective isotope separation in a technique utilizing an accelerated and expanding flow of a gaseous fixture of isotopes and a carrier gas which is divided into different output conduits containing isotopically enriched and depleted fractions.  The enhancement is achieved by increas-ing the temperature of one isotopic component in the mixture through vibrational excitation of the isotope resulting in vibrational-translational energy transfer collisions.  The resulting selective temperature increase improves the separation factor.  A preferred separation system comprises a nozzle-type separation system having an accelerating channel and a source of laser radiation for applying to the channel radiation tuned to induce vibrational excitation of one isotope type.
Patent CA-1073256-A (CA)
Inventor: DUBIEL JOSEPH T
IPC: F41A3/30
Filed: 1977-06-28
Granted: 1980-03-11
Abstract: RIFLE BOLT LOCKING APPARATUS     Abstract A receiver and bolt for a rifle wherein both the receiver and the bolt contain mating lugs of equal spacing around the receiver and bolt.  The width of the lugs on the receiver at their attachment to the receiver and the spacing between the lugs are equal.  Additional locking lugs can be attached behind the first-mentioned lugs to provide addi-tional restraining force capability.  The lugs should be mounted on an angle of 90° or 72° as calculated from a plane normal to the axis of the bolt or receiver.
Patent CA-1100908-A (CA)
Inventor: SABINS ROLLAND C
IPC: C23F13/00
Filed: 1977-07-22
Granted: 1981-05-12
Abstract: ALUMINUM MARINE ANODE WITH CORE ACTIVATOR                 Abstract of the Disclosure An aluminum marine anode is constructed in association with exposed activator surfaces.  The surfaces are preferably provided by casting the aluminum anode with a partially exposed core of activator material in place and suitably configurated to provide good conductive contact between the aluminum and the activator.  Materials which exhibit a surface potential less negative than about -300 millivolts with respect to a silver-silver chloride half cell function as activators, copper being preferred.  Aluminum alloyed with zinc and tin is the preferred anode material.
Patent CA-1087273-A (CA)
Inventor: CLOTHIER DARRELL S TH AVENUE W
IPC: B60C23/08
Filed: 1977-08-02
Granted: 1980-10-07
Abstract: TITLE:  LOW TIRE ALARM                     Abstract of the Disclosure An alarm for indicating low pressure in a ground engaging pneumatic tire of a vehicle.  The alarm is operated through the electrical system of the vehicle to warn the vehicle operator of a low pressure condition in one or more of the ground engaging vehicle tires as the vehicle moves along a roadway.  A switch arrangement is mounted within a housing at a point on the vehicle closely adjacent to a ground supporting wheel.  A feeler member extends downwardly from the housing to an end that is normally held above the ground level when the associated vehicle tire is in a normally inflated condition.  The feeler member is pivoted on a shaft within the housing.  An integral swing arm extends from the feeler arm to a free end that mounts an electrical contact surface.  An integral spring member connects the feeler and swing arm to the housing. The spring resists pivotal movement of the contact surface.  An insulator mounts an electrically conductive pad to the housing. A single electrical wire leads from the pad to connect in a series circuit with a lamp and an ungrounded side of the vehicle electrical power supply.  Thus, when contact is made with the road surface by the feeler member, a circuit is completed to light the lamp.  The feeler may engage the ground only if the adjacent tire becomes deflated to allow the feeler to move downwardly into contact with the ground surface.  Upon engaging the roadway surface, the feeler pivots about the shaft axis against resistance of the spring and correspondingly pivots the electrical contact surface into engage-ment with the pad, grounding the circuit through the vehicle axle. A cushion is held within the housing to effectively seal the housing.
Patent CA-1115843-A (CA)
Inventor: LYNCH WILLIAM T
IPC: G11C11/56
Filed: 1977-08-16
Granted: 1982-01-05
Abstract: DYNAMIC PRECHARGE CIRCUITRY     Abstract of the Disclosure In MOS circuitry, such as a dynamic MOS random access memory, precharge circuitry, consisting of six p-channel MOS transistors and a seventh p-channel MOS transistor connected as a capacitor, facilitates a two step charging process that initially lowers the potential of a first circuit node from a high potential to a value approximately one threshold voltage above an available low level power supply potential and then further lowers the potential of the circuit node to a value below that of the available low level power supply potential.  A single voltage pulse and the complement thereof are the only input signals required.  Normal threshold voltage losses of MOS transistors can thus be effectively eliminated and noise margins thereby improved.
Patent CA-1107562-A (CA)
Inventor: NAGATANI YOSHIO
IPC: A23L1/18
Filed: 1977-08-17
Granted: 1981-08-25
Abstract: Abstract of the Disclosure A method of preparing a shaped rice food comprising the steps of wrapping a boiled rice pretreated to be substantially non-viscous in a heat-shrinkable film in a predetermined shape, and heating the wrapped rice, thereby softening and swelling the rice and shrinking the film so as to compress the swollen rice utilizing the shrinking force of the film.  The boiled rice may be frozen before wrapped in the heat-shrinkable film.  Shaped rice food of various tastes can be provided by this method.
Patent CA-1082233-A (CA)
Inventor: LUECHINGER PAUL
IPC: G01G3/08
Filed: 1977-12-14
Granted: 1980-07-22
Abstract: ABSTRACT OF THE DISCLOSURE       The magnet system of a top-loading precision balance with electromagnetic load compensation is fixedly fastened in an aluminum alloy frame constituting the fixed link in the parallelogram suspension for the weighing pan.  Distortion of the frame resulting from variations of temperature of its ferrous magnet system and the light metal, e.g. aluminum or other light metal non-magnetic alloy of the frame, with consequent different dimensional changes, is prevented by openings formed in the frame walls spacedly surrounding those portions of the frame side walls fastened rigidly to the magnet system.       A sheet metal frame has three upright wall portions which in plan constitute a rectangle; the longer opposed side walls are supported by a ferrous magnet body to which the walls are bolted.  A parallelogram linkage pivots by two pairs of laterally and vertically spaced resilient strips secured to a rigid end wall of the frame, allowing the weighing pan to move vertically without twist or inclination. The pan displacement is converted to rota-tion of a lever arm by a suspension carried in the frame end wall remote from the rigid end wall.  The opposed side wall portions are apertured or thinned so that the magnet body expansion does not distort the sheet metal frame and alter the support point of the lever arm suspension.
Patent CA-1085641-A (CA)
Inventor: CASAGRANDE BRUNO
IPC: E04H12/16
Filed: 1977-12-28
Granted: 1980-09-16
Abstract: ABSTRACT OF THE DISCLOSURE            A joint device for poles including a flanged joint means that are united to the end of the pole by means of male and female elements; the female elements are sunk in the pole and have one end opened to the outside and the opposite end connected to metal bars of the pole cage; the male elements are inserted in the flanges.
Patent CA-1099922-A (CA)
Inventor: ALEX WAYNE E
IPC: A01K91/18
Filed: 1978-01-09
Granted: 1981-04-28
Abstract: ABSTRACT OF THE DISCLOSURE     A vessel is provided with a power driven wheel or gurdy for hauling in long lines having gangions and hooks at spaced intervals.  The line and gangions are guided into a rotary coiler which deposits successive loops of the line on a moving conveyor belt, thus displacing each successive loop from the previous loop to facilitate manual selection and baiting the hooks without undue tangling of the line and gangions.  The conveyor belt then deposits the coiled line in a suitable receiver with the coils more or less concentrically superimposed.          The conveyor is also laterally oscillated when the belt is stopped to minimize snarling of lines when coiled in a single stack.  Selectively operable manual controls are used to regulate the speed of the conveyor belt and the oscillation thereof.
Patent CA-1058678-A (CA)
Inventor: CARSON NORMAN H
IPC: A47B3/00
Filed: 1978-02-15
Granted: 1979-07-17
Abstract: ABSTRACT OF THE DISCLOSURE     An improved foldable leg assembly for dual-height workbenches and like devices which is simple to construct, requires no foldable braces or stays, employs an extremely simple hinge plate structure to connect same to a workbench base, the legs being oriented and arranged to provide adequate stability in the higher position of the workbench.  The dual height workbench includes top members defining a working surface, a base defining longitudinal and transverse axes and support structure for supporting said top members above said base.  A plurality of leg members are pivotally attached to said base adjacent outer edge portions of same and movable between inwardly folded inoperative positions corresponding to the lower height of the workbench and outwardly and downwardly inclined operative positions relative to said base corresponding to the higher position of the workbench. The pivotal attachment of the respective legs is such that each of said legs is capable of movement in an arc lying in a plane which is at an acute angle relative to the longitudinal and transverse axes of said base.  Each said leg includes at its upper end pivot axis de-fining means, with a portion of said upper end spaced from said pivot axis defining means being shaped to transmit thrust forces to said base and to limit the degree of outward pivotal motion of said leg thus to define the outwardly and downwardly inclined operative position of each leg.
Patent CA-1091213-A (CA)
Inventor: JOHNSON RAYMOND G JR
IPC: G05D1/08
Filed: 1978-02-13
Granted: 1980-12-09
Abstract: VARIABLE INCIDENCE HELICOPTER STABILATOR         AND FAIL SAFE ACTUATOR                 ABSTRACT OF THE DISCLOSURE A helicopter stabilator, combining the functions of tail stabilizer and aircraft elevator, has its angle of incidence with respect to the helicopter controlled by means of a pair of reversible electric jack-screw type actuators acting in series, each being controlled in a closed-loop fashion by separate electronic hardware, the position of each as well as the rate of change thereof being compared with the other, the controls being disconnected when the actuators fail to track within a threshold disparity of either position or rate of change of position of each other, whereby catastrophic aero-dynamic changes, which could otherwise occur from electronic or actuator failure, are avoided, but dynamic loads do not cause unnecessary failure indications.  A test switch intro-duces an imbalance to test the fault circuitry.  The stabila-tor is biased to assume a maximum incidence position so as to be insensitive to the substantially vertical component of main rotor downwash, at low speeds, including hover; and inputs from airspeed and collective pitch position cause it to assume a substantially level position at higher, cruise speeds, for maximum forward flight stability. A pitch rate gyro input controls the stabilator for stable flight against pitch-inducing flight commands and external effects, such as gusts. In one embodiment, the electronic controls are related to a canted tail rotor which not only provides directional stability, but also provides tail lift; to overcome tail-up and tail-down effects of the downward component of the tail rotor due to more or less thrust and real or apparent lateral accelerations, a lateral accelerometer is used.  To avoid main rotor downwash against the stabilator at hover, the lateral accelerometer and collective pitch inputs are washed-out at low speeds.  The bias allows final adjustment for high speed flight.      The invention disclosed herein was made under or in the course of a contract with the Department of the Army.
Patent CA-1097955-A (CA)
Inventor: DEVINE JANET
IPC: B23K20/10
Filed: 1978-02-13
Granted: 1981-03-24
Abstract: ULTRASONIC SPOT WELDER     Abstract of the Disclosure An ultrasonic spot welder is disclosed with a reed of resonant length arranged to be vibrated in a flexural mode for spot welding both plastics and metals.  The reed has a non-circular cross section with major and minor transverse dimensions.          Vibratory energy is transmitted to the reed in a direction per-pendicular to its major transverse dimension.          #1311 P/2 CA
Patent CA-1107708-A (CA)
Inventor: KRINGS JOSEF
IPC: E02D17/08
Filed: 1978-05-11
Granted: 1981-08-25
Abstract: ABSTRACT OF THE DISCLOSURE     A support element for pipe ditches is provided which consists of support plates which are pressed against the ditch walls in pairs by longitudinally adjustable spreading means, and are guided and retained in vertical supports.  The foot of at least one support plate includes a closable opening for guiding a branch pipe or the like, therethrough.  Most desirably, the support plates are composed of two plates, an inner and an outer plate which are detachably coupled together and which have the same outer dimensions as a single support plate.  The outer plate is provided with an opening in the area of the lower end thereof and the inner plate is movable between an open and closed position relative to the opening of the outer plate.