baber/WOPTO huggingface dataset:
Patent CA-1056310-A (CA)
Inventor: HUPP AUTHUR C
IPC: B41J9/52
Filed: 1976-02-27
Granted: 1979-06-12
Abstract: ABSTRACT OF THE DISCLOSURE      An improved line printer is provided which employs successive time periods for effecting printing.  During one such period, a signal compare phase, input character data is compared with the location of moving type fingers (carried on an endless belt moving past the various column locations on a record medium) and the column location at which the various input characters are to be printed to produce a hammer firing signal.  The hammer firing signals are applied to the gates of respective hammer drive SCR's to cause their anode-cathode circuits to conduct a small current and precondition these SCR's to be operated during the following drive phase.  During the drive phase, drive voltage is applied to all hammer drive scr anode-cathode circuits simultaneously, and those SCR's which have been conducting previously cause the energization of the corresponding hammer solenoids.  This results in the actuation of a type finger to impact on the record medium and produce a recorded character.  During the third or commutation phase, the SCR drive voltage is removed and a negative voltage is applied sufficient to cut off all SCR's and reset them.  Thus, any desired subsequent firing depends upon further comparisons of input character data, type finger location and column information.  To protect the hammer drive solenoids against overload, a separate, single pilot SCR is provided for causing the printer to be shut down in the event that no firing signals are being produced when power is applied to the drive bus for energizing the hammer solenoids.
Patent CA-1040106-A (CA)
Inventor: ISHII SHINICHIRO
IPC: H04R3/14
Filed: 1976-03-02
Granted: 1978-10-10
Abstract: MULTI-WAY SPEAKER SYSTEM     ABSTRACT OF THE DISCLOSURE           A multi-way speaker system comprising a tweeter, a squawker and a woofer wherein each of the speakers is arranged in staggered relation along their radiating axis at a predetermined spacing from each other and pro-vided with an appropriate crossover network coupled to an input terminal of each of the speaker whereby sound pressure-frequency characteristics of a synthesized sound wave resulting from the synthesis of respective sound waves radiated from respective speakers are rendered flat, and phase frequency characteristics of said synthesized sound wave are rendered linear, over an entire band to improve a waveform transmission characteristic of an overall speaker system.
Patent CA-1058658-A (CA)
Inventor: DYSON JAMES
IPC: B60B9/00
Filed: 1976-03-04
Granted: 1979-07-17
Abstract: ABSTRACT OF THE DISCLOSURE           The invention relates to a ground engaging member in the form of a ball for supporting load carrying structures, such as wheelbarrows.  The ball is preferably moulded from a plastics material, such as a mixture of EVA and low density polyethylene, and is formed in one-piece with sockets for receiving stub axles on the frame of the barrow.  The stub axles are non-rotatably mounted in an inner cup-shaped nylon bearing rotatably mounted in an outer cup-shaped nylon bearing fixedly received in a socket.  The ball may be moulded with treads and ribs.
Patent CA-1065460-A (CA)
Inventor: BURNHAM ROBERT D
IPC: H01S5/00
Filed: 1976-05-14
Granted: 1979-10-30
Abstract: BURIED-HETEROSTRUCTURE DIODE INJECTION LASER ABSTRACT OF THE INVENTION           A buried-heterostructure (BH) diode injection laser capable of operating at low room temperature thresholds and in the lowest order TE, TM or TEM modes.  The laser has an elongated groove in a substrate with the groove extending through a pump current confining layer with a central portion of the active layer substantially completely within the groove and substantially completely surrounded by light guiding and carrier confining layers of material having a lower index of refraction than the index of refraction of the material of the active layer.  The light guiding and carrier confining layer in contact with the substrate has a central depression within the elongated groove and the central portion of the active layer is bowl-shaped and within the depression such that light waves produced by carrier recombination within the central portion of the active layer when the laser is forward biased are guided in the central portion of the active layer such that the laser produces a light beam having reduced width v. height dimensional variations such that the light beam can be used with symmetrical optical elements such as round lenses.
Patent CA-1042477-A (CA)
Inventor: CAPDEBOSCQ ANDRE
IPC: E21B17/08
Filed: 1976-06-23
Granted: 1978-11-14
Abstract: ABSTRACT OF THE DISCLOSURE           The invention relates to a connecting device for successive duct sections and especially for ?ubmerged oil-ducts.  The device comprises a flexible tubular joint placed between two duct sections which are to be connected together and which may not be in perfectly aligned relation.  The joint is secured at both ends to two cylindrical coupling units slidably mounted respectively within the two duct sections. There is also provided remote-controlled means for anchoring the coupling units respectively in each duct section in the vicinity of the end-shoes thereof which are placed sub-stantially in oppositely-facing relation, and means also operated by remote control for forming a tight seal between the external surface of the coupling units and the internal surface of the duct sections.
Patent CA-1066504-A (CA)
Inventor: RYMARCHYK NICHOLAS M
IPC: C21C5/46
Filed: 1976-07-27
Granted: 1979-11-20
Abstract: Abstract of the Disclosure An oxygen lance tip or nozzle for Basic Oxygen Furnace Operations includes a body having an oxygen discharge means.  The tip or nozzle is connected to a central oxygen pipe and two outer concentric pipes provide water inlet and outlet passageways communicating with an outer annular water chamber in the tip or nozzle.  The tip or nozzle which may be a forging, includes water cooling channels individually isolated with respect to the central walls of the lance tip or nozzle, each of the channels being arranged in essentially a U-shaped con-figuration to provide a directional change of water flow from the water inlet passageway to the internal cooling area.  Walls of the channels formed with essentially flat surfaces which consists of inserts or baffles supported on an outer ring which regulates by-passing water and separates the water inlet and outlet passages.
Patent CA-1047527-A (CA)
Inventor: JAY PIERRE
IPC: H01G4/22
Filed: 1976-08-27
Granted: 1979-01-30
Abstract: L'invention se rapporte au domaine des liquides diélectriques pour l'isolement de l'appareillage électrique. Le liquide diélectrique selon l'invention est constitué en tout ou en partie par un ester d'un acide monocarboxylique saturé ramifié et d'alcool benzylique.  Le liquide selon l'invention convient pour les condensateurs et les transformateurs.
Patent CA-1083599-A (CA)
Title: Produits anti-tache permettant l'elimination facile des salissures au lavage
Inventor: DESSAINT ANDRE
IPC: C09K3/00
Filed: 1976-09-24
Granted: 1980-08-12
Abstract: L'invention a pour objet de nouveaux produits fluorés. Ils résultent de la réaction de:a) une molécule d'un ester, d'un ou plusieurs acides de formule: HS - A(COOH)n      (I) avec un ou plusieurs polyols, et deb) une à cinq molécules d'un ou plusieurs composés possédant au moins une liaison éthylénique, l'un au moins de ces composés répondant à la formule générale: Rf - B - ? = CH - R  (II) Dans les formules (I) et (II), A représente un radical hydrocarboné pouvant comporter des atomes d'oxygène, d'azote, de phosphore, de soufre ou d'halogène, n est un nombre entier allant de 1 b 4, Rf représente une chaîne perfluorée contenant 1 à 20 atomes de carbone, B représente un enchaînement bivalent, l'un des symboles R représente un atome d'hydrogène et l'autre un atome d'hydrogène ou un groupe alkyle contenant 1 à 4 atomes de carbone.  Ces produits, appliqués sur des substrats, leur confèrent un apprêt anti-tache permanent, tout en permettant d'élimination facile des salissures au lavage.
Patent CA-1058327-A (CA)
Inventor: MAY JOHN E
IPC: H01C7/112
Filed: 1976-09-24
Granted: 1979-07-10
Abstract: ABSTRACT OF THE DISCLOSURE       Disclosed is a metal oxide varistor body and a method for manufacturing the same.  Conventional manufacturing techniques through sintering are utilized on any metal oxide varistor formulation which includes bismuth oxide.  Following sintering, the devices, are heat treated at a temperature between 750°C and 1200°C for a time in excess of about 10 hours to cause the bismuth oxide to substantially completely convert to a body centered cubic phase.  The presence of the body centered cubic bismuth oxide increases the alpha of the devices and substantially lowers the leakage current.
Patent CA-1060759-A (CA)
Inventor: ARFF UWE F
IPC: B27B17/04
Filed: 1976-11-02
Granted: 1979-08-21
Abstract: ABSTRACT OF THE DISCLOSURE          Disclosed herein is a chain saw comprising an elongated cutter bar having, at the outer edges thereof, laterally spaced side rails, together with a curved end portion including laterally spaced side plates and a journalled idler wheel with a peripheral outer surface extending between the side plates and having a plurality of spaced outwardly extending lobes, and an endless saw chain trained around the cutter bar and having pivotally connected side and center links, each of the side links having a bottom surface, which during semicircular traversal of the curved end portion engages one of the side rails to provide partial support for the chain traversing the curved end portion, each of the center links having a lower portion which includes a forward edge extending downwardly between the side rails with at least one of the forward edges being in contact with one of the lobes to insure rotation of the idler wheel during chain traversal of the curved end portion, each of the center link lower portions also having a bottom edge which, when unworn and during semi-circular traversal of the curved end portion, engages the peripheral outer surface of the idler wheel to provide partial support for the chain traversing the curved end portion.
Patent CA-1087488-A (CA)
Title: Pressure relief valve
Inventor: ADLER FRANKLIN P
IPC: F16K17/16
Filed: 1976-11-19
Granted: 1980-10-14
Abstract: ABSTRACT OF THE DISCLOSURE         Disclosed is a safety vent for a covered hopper car which has a hopper and a pneumatic discharge mechanism adapted to be connected to a fluid pressure system for material unloading.        The vent includes a tubular member having a tubular wall, one portion of the wall being connected to and communicating with the interior of the hopper car and a second portion of the wall communicating with the atmosphere.  A seating surface is on one of the portions and a valve member is solely seated upon the surface and is rupturable at a predetermined design pressure outside the car.  The valve member is adapted to seat fluid tight against the surface solely by reduction of pressure in the car, and the valve member includes a stretchable diaphragm stretched transversely across the tubular wall in tensioned condition where, upon rupture of the same, the diaphragm is substantially destroyed to permit flow of fluid through the tubular member.
Patent CA-1039109-A (CA)
Inventor: ROGEN NEIL E
IPC: F04B47/00
Filed: 1977-02-07
Granted: 1978-09-26
Abstract: PUMPING BY WIRE ELONGATION ABSTRACT OF THE DISCLOSURE Pumping in oil wells and like application is carried out in a noiseless manner with efficient utilization of energy by raising the plunger or piston in a subsurface pump piston with a long metal rod or cable capable of undergoing memory shape change as a function of a martensitic transformation when worked by application of stress, preferably by gravity through an attached weight, while cold to elongate itself and, upon application of heat thereto, reversing the transformation and contracting in length to raise the piston and associated equip-ment plus fluid load.
Patent CA-1053924-A (CA)
Inventor: WASHBURN RALPH G
IPC: G01R15/00
Filed: 1977-03-31
Granted: 1979-05-08
Abstract: ABSTRACT OF THE DISCLOSURE     A measurement system of the type having a sensor the electrical resistance of which varies as a function of a parameter being measured, and a bridge circuit connected to the sensor, wherein a source of a reference voltage is pro-vided to excite the bridge to produce a bridge output indica-tive of the parameter being measured when the bridge is balance, the bridge output being dependent upon the sensor resistance and the reference voltage except that the system includes circuitry for causing the output to be independent of the reference voltage at one end of a range of values of the parameter, and output circuitry is provided for converting the bridge output into a system output in accordance with an output function, featuring, in one aspect, first calibration circuitry connected to the output circuitry to provide a first calibration signal for calibrating the system at one end of the range by controlling the output function; second calibration circuitry connected to the bridge circuit to provide a second calibration signal for calibrating the system at the other end of the range by controlling the effective value of the reference voltage supplied to the bridge circuit: sequencing circuitry for automatically causing the first calibration circuitry to calibrate the system at one end of the range, and then automatically causing the second calibration circuitry to calibrate the system at the other end of the range; and a control for activating said sequencing circuitry.
Patent CA-1106499-A (CA)
Inventor: MCGUFFIN WILLIAM G
IPC: H03M3/02
Filed: 1977-04-25
Granted: 1981-08-04
Abstract: RCA 70, 306 ADAPTIVE DELTA MODULATION SYSTEM          Abstract of the Disclosure A delta modulation system for generating a digital output signal representative of an analog input signal.  The analog input signal is periodically compared to an analog feedback signal to generate the digital output signal.  The analog feedback signal is generated from the digital output signal by generating a signal having an amplitude indicative of the absolute value of the derivative of the analog input signal, multiplying such absolute value signal by the digital output signal and integrating the product signal.
Patent CA-1064878-A (CA)
Inventor: ITO KIYOMATSU
IPC: A01K85/01
Filed: 1977-05-06
Granted: 1979-10-23
Abstract: ABSTRACT OF THE DISCLOSURE      A capsule lamp as a fishing tackle in which an electric circuit connecting a light bulb and a battery across switching means is opened up or closed in response to a water pressure acting on a diaphragm adapted to be deformed by the water pressure into pressing engagement with the switching means.
Patent CA-1060491-A (CA)
Inventor: SAROVICH STEVE
IPC: B65G21/20
Filed: 1977-05-12
Granted: 1979-08-14
Abstract: ABSTRACT OF DISCLOSURE    A feed-in can conveyor receives a bank of multiple rows of cans from a first work station, such as a can washing apparatus, and conveys them in inverted position, that is, with the open ends of the cans facing down and the closed bottom ends facing up, under a perforated endless can-carrying and can-uprighting conveyor belt which works over the peripheral surface of a rotary foraminous metal cylinder or drum.  Vacuum is applied from a vacuum chamber or housing, and a first vacuum control device, to the perforated endless conveyor belt which lifts the cans off the feed-in can conveyor belt and the perforated end-less conveyor belt "grabs" and holds the cans as they are carried by the perforated endless can-carrying and can-uprighting conveyor belt, with the closed bottoms of the cans disposed against the perforated endless conveyor belt, around approximately half of the peripheral surface or circumference of an air-permeable rotary foraminous metal drum or cylinder until they reach the top of the drum of cylinder where the vacuum from the vacuum chamber or housing, acting through a second and upper vacuum control device and the perforated endless conveyor belt, is cut off and the cans are delivered in upright position to a take-away or delivery conveyor by which they may be transported to a second work station, such as a printing and labeling apparatus, or the like.
Patent CA-1092835-A (CA)
Inventor: FUJII KENJI
IPC: C21C7/06
Filed: 1977-05-19
Granted: 1981-01-06
Abstract: METHOD OF AND MEMBER FOR ADDING           TREATING AGENT FOR MOLTEN METAL           ABSTRACT OF THE DISCLOSURE   A method of and a member for adding a treating agent for molten metal, wherein an additive or treating agent such as a desulfurizing agent or a deoxidizing agent is enclosed in a container made of a self-burnable and self-eruptive material and the container is inserted into the molten metal by dropping it or by making use of a support rod or a plunging device to produce physical and chemical reactions, which induce agitation and convection in the molten metal, the synergistic effect of such actions causing the treating agent to be effectively added to the molten metal.
Patent CA-1057461-A (CA)
Inventor: KARAMI HAMZEH
IPC: A61F5/44
Filed: 1977-08-18
Granted: 1979-07-03
Abstract: DISPOSABLE DIAPER WITH RETAINING AND SECURING FASTENER           ABSTRACT OF THE DISCLOSURE           A disposable diaper comprising, an absorbent pad assembly having a pair of side edges, a pair of end edges connecting the side edges, a front surface, a backing sheet of fluid impervious material defining a back surface of the pad assembly, an absorbent pad, and a laterally extending end section adjacent one end edge of the pad assembly.  The diaper has a tape fastener comprising, a release sheet having a release back surface and being attached to the back surface of the end section adjacent the side edge of the pad assembly.  The fastener has a securement section having adhesive on a front surface releasably attached to the back surface of the release sheet and having a release back surface.  The fas-tener also has a retaining section having adhesive on a front sur-face releasably attached to the back surface of the securement sec-tion.
Patent CA-1088882-A (CA)
Inventor: CORY HALSEY W
IPC: F16D35/00
Filed: 1977-10-06
Granted: 1980-11-04
Abstract: VARIABLE SPEED DRIVE             Abstract of the Disclosure Power is transmitted from a motor to  a pump or other device through a variable speed drive having a vertical input shaft disposed above a coaxial vertical output shaft.  The shafts are rotatably supported by corresponding bearings retained within hub portions of a housing, and interfitting annular clutch plates and clutch discs are alternately connected to the input and output shafts.  The clutch discs and plates are forced together by a fluid actuated piston, and the input shaft defines a passage for directing lubricating and cooling oil into the center of the clutch plates and discs so that the oil flows outwardly into an annular collecting chamber surrounding the clutch plates.  The housing defines an annular oil reservoir chamber surrounding the oil collecting chamber, and heated oil is pumped from the collecting chamber through a heat exchanger and into the reservoir chamber.  The top wall of the housing defines a horizontally extending passage through which oil is forced from the top of the reservoir chamber to the oil inlet passage within the input shaft.
Patent CA-1084253-A (CA)
Inventor: DAVIDSON JERRY R
IPC: C09K15/10
Filed: 1977-10-31
Granted: 1980-08-26
Abstract: A B S T R A C T           A method for inhibiting corrosion of metals in contact with a circulating absorbent medium used for removal of acid gases from natural or synthetic gas streams, wherein there is introduced into the medium a product derived by reacting a monoalkanolamine at from 21°-100°C with sulfur or a sulfide and an oxidizing agent, together with copper or a copper salt, sulfide or oxide, for from 0.1-20 hours until the resulting mixture is stable when diluted with water.  The sulfur or sulfur compounds are present in a ratio of 3 to 30 parts by weight per part of copper, and in an amount of 1-40 weight percent of the total composition.  The product is added to the absorbent medium in an amount which maintains at least 0.00002 pounds of copper and 0.0002 pounds of sulfur per pound of absorbent medium per day.         The advantage of this method is that the inhibitor can be added to the absorbent medium quickly and in measured amounts without waste of inhibitor.
Patent CA-1081581-A (CA)
Inventor: BOSCHUNG MARCEL
IPC: B05B1/00
Filed: 1978-01-18
Granted: 1980-07-15
Abstract: INVENTOR:          MARCEL BOSCHUNG            INVENTION: AUTOMATIC VALVE FOR CONTROLLING THE                    PASSAGE OF AN IN-FEED PRESSURE FLUID TO BE DELIVERED IN PREDETERMINED QUANTITIES INTO A RECEIVER              ABSTRACT OF THE DISCLOSURE            Automatic valve for controlling the passage of an in-feed pressure fluid to be delivered in predetermined quantities into a receiver. The automatic control valve comprises two tandem-joined piston cylinders. The first piston cylinder comprises two cavities of different volumes. The second piston cylinder comprises only one cavity. There is placed a piston in each of the cavities of the first piston cylinder, which pistons have different diameters and the circumference surfaces are spaced from the inside walls limiting the respective cavities of the first piston cylinder. The cavity of the second piston cylinder comprises a shock-absorbing device connected with a piston rod carrying also both the pistons placed in the cavities of the first piston cylinder. The piston placed in the cavity of the bigger volume of the first piston cylinder is fixed to the piston rod, whereas the piston placed in the cavity of the smaller volume of the first piston cylinder is shiftable on the piston rod between two limit stops.
Patent CA-1094450-A (CA)
Inventor: WASSERMAN DAVID
IPC: A61K9/00
Filed: 1978-02-03
Granted: 1981-01-27
Abstract: Abstract of the Disclosure Drugs with active hydrogen containing groups are reacted with.alpha.-polyester homopolymers and copolymers to form compounds which slowly absorb and release the drug when im-planted in animal tissue.
Patent CA-1057270-A (CA)
Inventor: BAKE EARL A
IPC: F16K31/50
Filed: 1978-03-03
Granted: 1979-06-26
Abstract: ABSTRACT OF THE DISCLOSURE   A metal diaphragm valve including a multiple ply metal diaphragm structure comprised of a plurality of thin circular metal elements each having a planar annular rim surrounding a dome-shaped interior portion superimposed one on top of another with their annular rims fixed together to seal the hollow interior portion of a valve bonnet.  A diaphragm contacting surface including at least two areas of different degrees of curvature, one of which is cruciform in shape, is mounted for axial movement in the valve bonnet.
Patent CA-1103162-A (CA)
Inventor: WHITE GEOFFREY
IPC: A61P33/02
Filed: 1978-04-13
Granted: 1981-06-16
Abstract: ABSTRACT            Veterinary compositions comprising an effective amount of trimethoprim in combination with an effective amount of sulphaquinoxaline are disclosed.  The weight ratio of tr imethoprim present to sulphaquinoxaline present is from about 1:1 to about 1:4.  The compositions are especially useful for the treatment of protozoal and bacterial infections in poultry.