baber/WOPTO huggingface dataset:
Patent CA-1036542-A (CA)
Title: Expansion plug lock
Inventor: KARLS ALBERT J
IPC: B65D55/14
Filed: 1975-05-21
Granted: 1978-08-15
Abstract: EXPANSION PLUG LOCK               Abstract of the Disclosure A lockable closure plug consisting of a top-flanged cylindrical resilient compressible body with a top plate covering the top of the body and a flat bottom plate engaging the bottom of the body, and an axial operating stem rotatably engaging centrally through the body and abutting on the top plate and threadedly engaged through a nut secured centrally to the bottom plate.  A rod-like handle bar is secured perpendicularly through the top end of the stem and a pair of link bars are pivoted to opposite sides of an upstanding U-shaped bracket on the top plate.      The link bars in raised positions can lockingly receive the handle bar therebetween, and said link bars are apertured to receive the hasp of a padlock, which can hold the link bars in raised locking positions.  The link bars have end stop lug portions near their pivot points, the lug portions being engagable with the top plate to prevent the link bars from being rotated outwardly away from the handle bar, thus prevention the handle bar from being un-locked unless the padlock is removed.  Without the padlock, the link bars can assume normal lowered positions on opposite sides of the stem below the level of the handle bar, allowing the stem to be rotated.
Patent CA-1060536-A (CA)
Inventor: NUCKOLLS JOE A
IPC: H05B41/231
Filed: 1975-09-03
Granted: 1979-08-14
Abstract: ABSTRACT OF THE DISCLOSURE      Circuits are disclosed for starting and operating a high pressure sodium vapor lamp in combination with another gaseous discharge lamp of low voltage breakdown characteristics. The sodium vapor lamp is connected in series with a ballast induction coil, while the low voltage breakdown lamp, a portion of the ballast coil at its input side, and a capacitor are connected in a series discharge loop to produce high frequency, high voltage pulses for starting the sodium vapor lamp, and providing for operation of both lamps.  A ballast capacitor is connected in series with the low voltage lamp to provide a lead ballast circuit therefor.
Patent CA-1057660-A (CA)
Title: Gelatin-encapsulated digoxin solutions and method of preparing the same
Inventor: GARDELLA LIBERO A
IPC: A61K9/48
Filed: 1975-09-17
Granted: 1979-07-03
Abstract: Abstract Digoxin solutions are disclosed which are compatible with gelatin and which are of relatively high concentration, thereby permitting encapsulation of therapeutic amounts of digoxin in soft gelatin capsules of moderate size.  The digoxin is first micronized and then dissolved in a vehicle consisting predominately of polyethylene glycol having a molecular weight no greater than about one thousand and having a melting temperature no greater than about 35 degrees C., to provide a digoxin concentration of at least one-half milligram per milliliter and preferably one milligram per milliliter.  Solution composed of various solvent blends are disclosed,  including solutions which are highly viscous (semi-solid) at room temperature.
Patent CA-1049640-A (CA)
Inventor: STREIFER WILLIAM
IPC: H01S5/00
Filed: 1975-10-09
Granted: 1979-02-27
Abstract: INTEGRATED GRATING OUTPUT COUPLER IN DIODE LASERS               ABSTRACT OF THE INVENTION         A heterojunction diode laser which produces a highly collimated, polarized light beam perpendicular to the plane of the PN junction of the laser rather than through cleaved end faces in the plane of the PN junction.  The diode laser includes a periodic structure which is buried at a heterojunction interface and in contact with a light wave-guide layer.  The periodic structure acts to produce the feedback necessary for lasing.  If the spacing of the teeth of the periodic structure are an integer number of wavelengths of the light photons produced in the laser, the light beam exits at an angle perpendicular to the plane of the PN junction.  If a tooth spacing is chosen that is not equal to an integer number of wavelengths of the light photons produced in the laser, the light beam may emerge from the diode at an angle other than the normal with the specific angle determined by the particular tooth spacing.  To increase output intensity, the ends of the laser perpendicular to the plane of the PN junction and parallel to the teeth of the periodic structure may be cleaved and coated with a highly light reflective film.
Patent CA-1061773-A (CA)
Inventor: QUINTAL YVAN
IPC: F28F3/12
Filed: 1975-10-24
Granted: 1979-09-04
Abstract: A B S T R A C T A ground heat exchanger adapted to be buried in the ground and to b used in association with a heat pump system for heating and cooling.  The exchanger includes a heat conducting metal plate adapted to be vertically buried in the ground and carrying a fluid circulating coil adapted to be con-nected to the circuit of the heat pump system.  The ends of the plate are each movably inserted into a corresponding slit of an upright tube filled with a heat conducting grease.  Weights compress the grease within the tubes and cause its ejection through apertures of the tubes along both surfaces of the plate, so as to fill any voids between the plate and the ground and to also fill any new voids which may develop due to contraction of expansion of the plate with temperature variation and also due to ground movement. The top ends of the tubes are accessible above ground surface, so that they may be refilled according to need.  The elimination of air pockets or voids maintains the entire surface of the plate in contact with the ground, whereby the heat exchange efficiency is maintained even after a long period of use. The thermal grease also prevents rusting of the plate surfaces which might impair its heat conductivity.
Patent CA-1043053-A (CA)
Inventor: OLDING ROBERT J A
IPC: C04B26/28
Filed: 1975-10-22
Granted: 1978-11-28
Abstract: FIRE RESISTANT, INSULTING OR ACOUSTICAL PANEL        ABSTRACT OF THE DISCLOSURE           A fire-resistant insulating panel having acoustical properties, has a composition of 30-45% expanded perlite 7-25% wollastonite, 15-30% mineral fibre, 6-18% vegetable fibre, 6 to 14% starch and 2-5% colloidal clay, in parts by weight on a dry basis.
Patent CA-1070119-A (CA)
Inventor: AURINI TERRENCE D
IPC: C21C5/56
Filed: 1975-11-10
Granted: 1980-01-22
Abstract: ABSTRACT OF THE DISCLOSURE      Process  for producing heats of molten steel directly from solid materials without the need of separate refining steps or time periods.  More specifically, there is disclosed a continuous process for producing steel, which comprises: providing in an oxy-fuel fired melting vessel a charge of solid steel of preselected composition containing the principal elements and in proportions corresponding substantially to those of the desired steel end product, and melting said charge and converting the resultant liquid metal to a solid form in the absence of a refining step and a slag removal step.  In a preferred form, the metal is tapped at a temperature of at least 2800°F.
Patent CA-1044755-A (CA)
Inventor: GRABB NICHOLAS G
IPC: H01M4/14
Filed: 1975-11-27
Granted: 1978-12-19
Abstract: A B S T R A C T     An improved rectangular shaped lead-acid storage battery grid comprises in combination, tapered vertical grid wires, tapered side and top frame wires, additional vertical grid wires disposed between the tapered vertical grid wires and two diagonal grid wires which extend from the grid portion con-taining the additional grid wires to the side and bottom frame wires.  Not all the vertical grid wires are tapered.  The last of the tapered vertical grid wires is spaced from the side frame wire adjacent the lug, a distance of more than approxi-mately 30 per cent and up to approximately 50 per cent of the entire length of the top frame wire.  The additional vertical grid wires extend downwardly from the top frame wire a distance of approximately 30 to 50 per cent of the length of the side frame wire.  A battery cell made up of this type of grid has approximately 5 to 10 per cent increased high amperage discharge rate compared to a battery having a standard type of grid.  The grid also has increased structural rigidity compared to standard battery grids.
Patent CA-1064055-A (CA)
Inventor: HIROSE ISAO
IPC: C07C31/20
Filed: 1976-02-19
Granted: 1979-10-09
Abstract: Abstract of the Disclosure The invention relates to a process for oxidising an aliphatic olefin with 2 - 4 carbon atoms with an aqueous medium containing (i) at least one cation selected from the group consisting of copper ions and iron ions, and (ii) an anion which at least includes a bromine ion and can solubilize copper and/or iron at a controlled temperature, cation and anion concentra-tion to form a corresponding glycol.  The inventive process eliminates the need for expensive noble metal salts.
Patent CA-1059137-A (CA)
Inventor: WENNSTROEM ULF
IPC: C07D207/26
Filed: 1976-03-05
Granted: 1979-07-24
Abstract: ABSTRACT OF THE DISCLOSURE     An improved process is provided for the preparation of piracetam (2-oxo-1-pyrrilidinylacetamide) involving a ring colsure reaction on N-carbamoylmethyl-4-aminobutryric acid ethyl ester being the simple expedient of heating.  This procedure obviates the use of dangerous raw materials.
Patent CA-1092299-A (CA)
Inventor: BEHME KLAUS J
IPC: C08G18/62
Filed: 1976-04-12
Granted: 1980-12-23
Abstract: Abstract of the Disclosure Fiber-containing polyurethane foams are provided, which contain from 0.1 to 10% by weight, relative to the finished foam, of polyolefin fibers containing groups reacting with isocyanates.  The foams display an improved behaviour on compression and, in the range of more than 50% of compres-sion, the foams absorb a higher compression stress than foams without reactive polyolefin fibers or containing non-reactive polyolefin fibers.
Patent CA-1065010-A (CA)
Inventor: MARTIN ANTHONY N
IPC: H02P8/00
Filed: 1976-04-14
Granted: 1979-10-23
Abstract: STEPPER MOTOR FEEDBACK IN POSITION SERVO LOOP             ABSTRACT OF THE DISCLOSURE    The actual drive signals to a stepper motor which rotates a mechanical device provide low order bits used in place of the low order bits of a digital word derived from an analog position sensor, to provide an accurate feedback word for subtraction from a digital position command word so as to generate a position error signal to drive the stepper motor in a servo loop.
Patent CA-1077908-A (CA)
Inventor: WHITNEY RICHARD P
IPC: C22B1/248
Filed: 1976-04-23
Granted: 1980-05-20
Abstract: TWO-PIECE HAMMER                     Abstract of the Disclosure A two piece hammer for a shredder has a separate hammer face and a separate hammer peen.  The face and peen are complementary and have interlocking surfaces so that they may be mounted on a hammer disc or rotor by a single hammer pin to form a unitary hammer which allows the hammer face to be replaced when worn and the peen to be reused.
Patent CA-1076993-A (CA)
Inventor: SCHWEICKART ALBERT J
IPC: C25B9/19
Filed: 1976-05-13
Granted: 1980-05-06
Abstract: ABSTRACT OF THE DISCLOSURE:         A cell frame for a bipolar electrolytic filter press cell includes an electrolysis-associated lower section.  A pressure bar extends across the cell frame immediately above the lower section to prevent distortion of the separator by cathode generated gases, and to promote disengagement of the gases.  The frame, also, includes external headers in the up-per section for collection of the gases evolved by the elec-trolysis of the electrolytic solutions.
Patent CA-1046256-A (CA)
Inventor: ARLETT JOHN
IPC: A01G3/02
Filed: 1976-07-15
Granted: 1979-01-16
Abstract: ABSTRACT OF THE DISCLOSURE     This invention relates to hand tools such as garden pruners, lawn-edge trimmers, scissors and the like.  The tool comprises two members and two handles connected to the re-spective members and movable to move the members towards one another.  It also includes a spring which biasses the members apart, the spring being guided for expansion and contraction in a slot in a first one of said members.  The spring is so con-nected to the second of said members that an increase in the force of the spring  occurs in response to relative movement of the members towards one another.
Patent CA-1098772-A (CA)
Title: Thermoplastic resin-coated metallic substrate and the method of producing the same
Inventor: INGRAHAM GLEN E
IPC: B32B15/02
Filed: 1976-09-03
Granted: 1981-04-07
Abstract: A metallic substrate and a thermoplastic resinous coating are bonded to one another by a resinous hot melt adhesive.  The method of applying the coating to effect the bond includes applying, to the metallic substrate a resinous hot melt polyamide adhesive composition which has been found to adhere firmly to the metallic substrate and to form a secure bond with the molten thermoplastic resin extruded onto said hot melt adhesive at high rates of speed. I
Patent CA-1048014-A (CA)
Inventor: ROSENBERGER ROY R
IPC: C02F1/52
Filed: 1976-10-01
Granted: 1979-02-06
Abstract: ABSTRACT OF THE DISCLOSURE           A device for mixing viscous fluids with water comprising a rectangular block containing a pre-mixing chamber, a center section fitted with a bevelled double acting valve capable of restricting fluid flow in two distinct directions, an outlet chamber and recycling means for thoroughly mixing the viscous fluids with the water.  The mixing device is able to balance both low and high back pressures, eliminate cavitation and deliver a mixture of viscous fluid and water without serious degradation of the components of the viscous fluids.
Patent CA-1063911-A (CA)
Inventor: ASPENLIND AKE L
IPC: B08B11/02
Filed: 1976-10-04
Granted: 1979-10-09
Abstract: TITLE GAS CYLINDER WASHING, DRAINING AND/OR DRYING APPARATUS ABSTRACT OF THE DISCLOSURE         Cylinders are mounted on an invertible frame.         A reciprocably mounted header is provided on the movable frame for engaging the necks of the cylinders to hold the cylinders on the movable frame when inverted and to inject a drying fluid into the cylinders.  The movable frame and movable header on the movable frame are adapted for holding various sizes of cylinders.
Patent CA-1075063-A (CA)
Inventor: POWERS ROBERT H
IPC: G03C3/00
Filed: 1976-10-12
Granted: 1980-04-08
Abstract: CASSETTE-LIKE DEVICE FOR ADVANCING AND WITHDRAWING A  PREDETERMINED LENGTH OF FILM TO AND FROM A CAMERA                      ABSTRACT OF THE DISCLOSURE      A two-part replaceable cassette-like device is provided, having a disposable cassette portion and a light sealed buffer box, having a pair of drive rollers therein and which is detach-ably fastened to the disposable cassette, whereby the photosen-sitive material driven out of the cassette will be driven through the light sealed buffer box into a camera processor.  Upon exhaustion of the photosensitive media within the cassette, the buffer box is removed from the cassette for reuse and the cassette is thrown away.  A gear coupled to the buffer box roller material drive means is automatically rotated during insertion and with-drawal of the buffer box to and from the camera due to roller contact with a stationary drive gear positioned within such camera.
Patent CA-1083823-A (CA)
Inventor: ROBERTS GREGORY T
IPC: C22B26/22
Filed: 1976-10-22
Granted: 1980-08-19
Abstract: ABSTRACT OF THE DISCLOSURE           A magnesium reclamation process whereby magnesium and magnesium alloy fines, chips and scraps may be recovered and re-melted for reuse comprises pelletizing the magnesium by first compacting the magnesium with a low pressure press to initially expel the majority of the air, followed by a high pressure press under a controlled environment to form a compact pellet.  The pellets are then melted either by stacking on the cold heel of a pot and heating under  a controlled environment or preheating in a basket over a melt, and then subsequently immersing the load.  Melting can also be accomplished by controlled melting, utilizing an induction melting furnace wherein temperature can be slowly increased.  Pelletizing pressures range from approximately the yield pressure to the cold welding pressure of the material being reclaimed.  A typical pelletizing environment is 20% SF6 and 80% CO2 and a suitable melting environment is 98% CO2 and 2% SF6.
Patent CA-1072886-A (CA)
Inventor: RAINES KENNETH
IPC: B01D63/08
Filed: 1976-11-22
Granted: 1980-03-04
Abstract: FLAT PROFILE FILTER                  Abstract of the Disclosure A flat profile filter for IV sets and the like, includes an elongate, flat housing having a filter supporting frame therein defining at least one longitudinally extending, laterally facing opening of greater size than could be accommodated transversely in the housing, and a filter element secured on the frame in spanning relationship to the opening.
Patent CA-1087023-A (CA)
Inventor: PETERS ALENKA
IPC: A21D2/36
Filed: 1976-11-29
Granted: 1980-10-07
Abstract: A B S T R A C T           A dough for making baked goods, characterized by a dough made of flour, rubbed fat-containing kernels, fat and sugar, and which is ready for the oven and may be converted into a stirring dough by the addition of whipped eggs.
Patent CA-1075603-A (CA)
Inventor: ARMSTRONG WILLIAM WELLESLEY
IPC: A61P31/00
Filed: 1976-12-17
Granted: 1980-04-15
Abstract: ABSTRACT OF THE DISCLOSURE      Doxycycline aqueous solutions containing 2-pyrrolidone as a co-solvent suitable for pharmaceutical use and especially useful for either oral, topical or parenteral administration are disclosed.
Patent CA-1073404-A (CA)
Inventor: SENCAR DRAGO
IPC: B29K27/00
Filed: 1977-01-10
Granted: 1980-03-11
Abstract: PROCESS FOR THE PRODUCTION OF HARD PLASTIC FOAMS           USING A POLYVINYLCHLORIDE BASE                          ABSTRACT       A process for the production of hard plastic foams using a polyvinylchloride base, from a mixture of polyvinylchloride, at least one temporary softener and at least one expansion agent, wherein the mixture is heated, cooled and expanded. A polymerizable ethylenically unsaturated monomer having at least one double link-age is used as the softener. The polymerization of such monomer is carried out after complete expansion by means of ionizing rays.
Patent CA-1079336-A (CA)
Inventor: TAYLOR GLENN R
IPC: H01H11/00
Filed: 1977-01-13
Granted: 1980-06-10
Abstract: CONVERTIBLE SWITCH               ABSTRACT OF THE DISCLOSURE        A convertible switch characterized by a dielectric housing comprising a contact compartment, a pair of sta-tionary contacts at one end of the compartment, movable contacts movable between open and closed positions, a contact carrier slidably mounted in the housing and comprising a bridging contact member upon which the movable contacts are mounted, a coil spring at one end of the contact carrier for biasing the movable contacts in one of the open and closed position, and the assembly of the contact carrier and spring being reversible within the housing compartment for holding the movable contacts in the other of the open and closed positions.
Patent CA-1068448-A (CA)
Inventor: BOETTCHER KLAUS
IPC: C08F6/26
Filed: 1977-01-21
Granted: 1979-12-18
Abstract: ABSTRACT OF THE DISCLOSURE: A process for the high pressure polymeri-zation of ethylene at elevated temperatures in a polymerization zone followed by transfer of the reaction mixture, through a cooling zone, into the separation zone. In this process, the pressure at the cooling zone outlet is perodically reduced briefly, at recurring intervals, these brief pressure reductions being independent of the pressure reductions in the polymerization zone. Using this process, the con-version in the polymerization unit can be increased and a more homo-geneous ethylene polymer can be obtained.
Patent CA-1079678-A (CA)
Inventor: WACKERBARTH FOLKARD
IPC: C10B21/16
Filed: 1977-01-31
Granted: 1980-06-17
Abstract: ABSTRACT OF THE DISCLOSURE     Gas-flow resistance elements are incorporated in each of the rich-gas distribution lines, the lean-gas distribution ducts and the smoke-gas ducts forming part of a battery of coke ovens.  The flow resistance elements are employed to insure uniform and adequate distribution of combustion media along the individual rows of heating flues of the coke oven battery.          Substantially identical gas-flow resistance elements in the rich-gas distribution lines reduce the flow of rich-gas by an amount which is greater than 50 mm WG whereby, for example, a rich-gas head pressure of 120 mm WG is reduced to approximately 70 mm WG.  Substantially identical gas-flow resistance elements in the lean-gas distribution branch ducts reduce the lean-gas pressure therein by an amount greater than 100 mm WG.  Subs-tantially identical gas-flow resistance elements in the smoke-gas ducts reduce the flow of smoke-gas therein by an amount corresponding to a loss of head pressure which is greater than 15 mm WG.
Patent CA-1047798-A (CA)
Inventor: KREITZBERG ERNEST A
IPC: F16H61/00
Filed: 1977-02-25
Granted: 1979-02-06
Abstract: POWER SHIFT TRANSMISSION WITH   REPLACEABLE CONTROL UNIT                     ABSTRACT OF THE DISCLOSURE         A power shift transmission mounted within the trans-mission housing and a hydraulic system for operating the trans-mission.  The housing has an opening for receiving a transmission control unit.  The opening provides an inspection window when the control unit is removed.  The transmission and control unit are equipped with internal plumbing and a provision for automatic coupling of the control unit with the transmission when it is assembled on a transmission housing.          The control unit is constructed such that it can be replaced by an identical unit for convenience in servicing with a minimum of downtime.
Patent CA-1082693-A (CA)
Inventor: TURBAK ALBIN F
IPC: C08B16/00
Filed: 1977-02-25
Granted: 1980-07-29
Abstract: PROCESS FOR PRODUCING REGENERATED         CELLULOSIC FIBERS     ABSTRACT OF THE DISCLOSURE:       Regenerated cellulosic fibers of improved resistance to alkaline treatment are produced by nitrosating and dissolving from 5 to 14% by weight of a cellulosic material in a dialkylacylamide solvent while said solution is maintained at a temperature no greater than 20°C to form a cellulose nitrite ester, and regenerating the cellulose by contacting the cellulose ester with a regenerant. Regeneration of the cellulose occurs before significant oxidation of the cellulose takes place.
Patent CA-1086420-A (CA)
Inventor: HEWIE DAVID W
IPC: H02H3/02
Filed: 1977-05-11
Granted: 1980-09-23
Abstract: ABSTRACT      Operation of a cathode ray tube above the Isodose line is prevented by generating voltages that are propor-tional to both the EHT supplied to the cathode ray tube and the beam current of the cathode ray tube.  These voltages are applied to a sensing device, such as a neon tube, which generates a trigger pulse when the voltage across it exceeds some predetermined magnitude.  The sensing device is selected so that the trigger pulse is generated always below the Isodose line.  The trigger pulse is used to inhibit operation of the cathode ray tube as by interrupting the supply of EHT to the cathode ray tube.
Patent CA-1088200-A (CA)
Inventor: HAMILL JAMES S
IPC: H04N3/22
Filed: 1977-05-13
Granted: 1980-10-21
Abstract: ABSTRACT OF THE DISCLOSURE           Precise control of size and location of cathode-ray image, especially of projected image may be required for various reasons, but particularly when images from several different sources are to be matched contiguously to produce apparently continuous image, and when extreme accuracy of linear dim-ensions on picture is required.           Edges of image normal to each scan direction are provided with markers, such as light bars. Photosensors at edge of useful picture area sense such markers. Sum of sensing of opposed photosensors is measure of displacement of picture in direction of line joining photosensors. Difference between sensings of opposed photosensors is measure of ex-tension or contraction of picture in that direction. Sum signal is used to control centering; difference signals is used to control scan amplitude in given direction.