baber/WOPTO huggingface dataset:
Patent CA-1065746-A (CA)
Inventor: RUTZ RICHARD F
IPC: G01D15/18
Filed: 1976-12-29
Granted: 1979-11-06
Abstract: AlN MASKING FOR SELECTIVE ETCHING OF SAPPHIRE                Abstract of the Disclosure A method is disclosed for forming holes and depressions in aluminum oxide, including its sapphire form and spinels by etching using AlN as a maskant.  This method is featured by the epitaxial deposition of an AlN film on a sapphire body, for instance.  The AlN film is etched in a predetermined pattern and heat treated.  The etchants used may be either H2 or molten Al which will selectively attack the sapphire substrate in the regions exposed by the AlN mask.
Patent CA-1042842-A (CA)
Inventor: LOWER WILLIAM E
IPC: B07B11/06
Filed: 1977-01-05
Granted: 1978-11-21
Abstract: IMPROVED DISTRIBUTION OF FEED   ONTO A SCREENING MACHINE Abstract of the Disclosure A method and apparatus for improving the distribution of a stream of incoming feed material onto the screen of a screen-ing machine.  The distributor apparatus includes a rotating, dished or cupped thrower surrounded by a fixed shroud.  The shroud is of a cross-sectional area substantially larger than that of the thrower but substantially less than the surface area of the screening machine's top screen.  The incoming material is discharged into the cup of the thrower, the rotation of which slings the material outwardly over the rim of the cup and against the shroud, in a more symmetrical angular distribution. A roof having directional vanes on it is interposed above the screening machine's top screen, and below the thrower and shroud. The infed material drops from the shroud onto the vaned roof, and the vanes direct it outwardly in a predetermined pattern toward the peripheral edges of the screening machine's top screen.  Distribution asymmetries that would otherwise result from surges in the feed rate and/or off-center discharge of the infed material are minimized, and a higher throughput of infed material is achieved.
Patent CA-1093797-A (CA)
Inventor: BENGTSSON RALPH
IPC: B21J15/16
Filed: 1977-04-27
Granted: 1981-01-20
Abstract: A PROCESS AND AN APPARATUS FOR THE CONTINUOUS MECHANICAL FABRICATION OF STARTING SHEETS FOR THE ELECTROLYTIC REFINING OF METALS, ESPECIALLY        COPPER     Abstract of Disclosure A process for the continuous mechanical fabrication of starting sheets for the electrolytic refining of metals, especially copper, from electrolytically deposited sheets which have already been cut to certain dimensions and straightened, the sheet being continuously moved forwards along a predetermined path of movement at a substantially constant rate of advance and a movement component directed parallel to the path of movement of the sheet, of which the speed substantially corresponds to the rate of advance of the sheet, being imparted both to the components to be connected to the sheet and to the tools, at least when they are acting directly or indirectly on the sheet.
Patent CA-1078696-A (CA)
Inventor: DE BUSSCHER CYRIEL R J
IPC: A01D67/00
Filed: 1977-05-06
Granted: 1980-06-03
Abstract: Abstract of the Disclosure In a combine harvesting machine comprising a plurality of inter-connected sub-addenblies, there is provided the apparatus and the method for utilizing an entirely separate, self-contained, and self-supporting straw walker sub-assembly that may be mounted to a mobile chassis during the pro-duction line assembly.
Patent CA-1100436-A (CA)
Inventor: MANDRIN CHARLES
IPC: C01C1/04
Filed: 1977-05-13
Granted: 1981-05-05
Abstract: Abstract of the Disclosure To reduce the consumption of electricity, a portion of the deuterium-enriched water is stored during the winter while the remainder is used to produce hydrogen in the heavy water preparation plant.  The stored deuterium-enriched water is then used in the summer with fresh water to produce hydro-gen in the electrolyzer for delivery to the ammonia synthesiz-ing plant.  Surplus hydrogen is stored during the summer for subsequent use in the synthesizing plant during the next winter.
Patent CA-1092054-A (CA)
Title: Method and apparatus for removing colloidal suspensions
Inventor: ZUCKER JERRY
IPC: C02F1/48
Filed: 1977-05-18
Granted: 1980-12-23
Abstract: ABSTRACT OF THE DISCLOSURE         A system and method for removing colloidal suspen-sions or particles from a liquid, in particular tall oil soap particles from black liquor of a wood pulping process.  Black liquor is moved along a flow path from an upstream to a down-stream zone.  First and second electrical conductors are respectively located in the upstream and downstream zones and means are provided for applying opposite electrical potentials to these conductors.  For removal of anionic colloids, the first conductor is made positive and the second conductor negative.  Thus, colloidal particles in the liquid having a relative potential opposite to the potential of the first conductor are attracted towards the first coductor as the liquid flows through the upstream zone, and some of the ions attached to some of these particles are stripped off by the electrical field, leaving these particles with a potential of the opposite polarity from particles not so affected.  The stripped colloidal particles attract other colloidal particles the charge of which has not been changed by stripping, thereby commencing the formation of agglomerates.  The particles are carried downstream by the liquid and through the field adjacent the second conductor, whereby the particles continue to agglomerate.  As a result of the continuous pressure from the flow, and of air introduced into the stream and a small amount of hydrogen and oxygen resulting from electrolysis of the water present, these agglomerates or globules are "washed off" the conductors into a separation vessel wherein there results a separation in the phases.  Removal of the soap or other separated materials in the vessel is accomplished by conventional means.  Improved agglomeration is achieved by also applying pulsating potentials to the conductors and by insulating both conductors so that, in addition to the elec-tric field between them, there are separate electric fields between each of them and ground.
Patent CA-1071303-A (CA)
Inventor: THUNE ROBERT H
IPC: H01M50/112
Filed: 1977-07-14
Granted: 1980-02-05
Abstract: C-2717                                             A-21,727 RIB TRIMMIMG OF UNIVERSALLY  MOLDED BATTERY CONTAINER            Abstract of the Disclosure:         A multicell battery case, adaptable for use with a variety of cell-pack sizes, is molded with universal-sized cell compartments and opposing spacer-ribs projecting a pre-determined distance into the cell compartments from the com-partments' walls so as to provide an inter-rib gap across the compartment substantially equal to the narrowest cell pack useful with that case.  The case is thereafter adapted for use with thicker cell packs by trimming back the opposing ribs to increase the gap therebetween to approximately the thickness of the cell pack actually destined for use with that case.          Preferably, rib-shaving blades are inserted into the case and guided in spaced relation from the rib-bearing walls to remove distal portions of the ribs.  Means are provided to detach the shavings from the container at their roots.
Patent CA-1107460-A (CA)
Inventor: BALLARD DENIS G H
IPC: C04B14/20
Filed: 1977-09-23
Granted: 1981-08-25
Abstract: ABSTRACT OF THE DISCLOSURE           Articles of high tensile strength, particularly flexible sheets, are formed of self-adhering, dried vermiculite lamellae, delaminated in aqueous suspension and size-graded to be less than 50 µm preferably less than 20 µm in diameter.
Patent CA-1058145-A (CA)
Inventor: LIU JOSEPH
IPC: C08F4/06
Filed: 1977-09-23
Granted: 1979-07-10
Abstract: ABSTRACT OF THE DISCLOSURE        A new catalyst and a method of polymerizing olefins in which the catalyst is prepared by forming a mixture by dispersing on a finely divided, difficult to reduce, inorganic support of the class consisting of silica, alumina, thoria, zirconia, titania, magnesia and mixtures or composites thereof, an organic chromium compound pyrolytically decomposable in the substantial absence of oxygen to deposit a catalytically active residue along with a carbon residue as a contaminant on the support, then activating the mixture by subjecting the mixture to non-oxidative pyrolysis to and at a temperature within the range of about 600-2000°F., thereby depositing on the support the chromium-bearing residue and carbon residue as a by-product from the pyrolytic decomposition of the organic chromium compound, and subjecting the activated catalyst after this activating to heat and on oxidizing gas such as air, oxygen, carbon dioxide, nitrous oxide, and the like, to burn off a substantial amount of the carbon residue and to modify and improve the characteristics of the activated catalyst.
Patent CA-1075147-A (CA)
Inventor: CHA CHANG Y
IPC: E21B43/247
Filed: 1977-10-04
Granted: 1980-04-08
Abstract: ABSTRACT         A secondary combustion zone is formed in an in situ oil shale retort having walls and containing a fragmented permeable mass of particles containing oil shale.  The retort has a primary combustion zone advancing therethrough and a retort feed comprising fuel and oxygen supplying gas is introduced into the retort at a location on the trailing side of the primary combustion zone for forming the secondary combustion zone.  The retort feed has a spontaneous ignition temperature lower than the temperature in the primary combustion zone and preferably lower than the temperature at the location where the retort feed is introduced into the retort.  Preferably, sufficient heat is generated in the secondary combustion zone to maintain , the temperature of the retort walls adjacent the secondary combustion zone at a temperature above the retorting temperature of oil shale.
Patent CA-1080544-A (CA)
Inventor: PECH KARL H
IPC: F23K5/04
Filed: 1977-11-09
Granted: 1980-07-01
Abstract: ABSTRACT OF THE DISCLOSURE      A fuel pump assembly for supplying fuel to a gas turbine engine has a centrifugal  pump, including an imp-eller, that furnishes the necessary pressure for engine operation at high engine speeds.  A vane pump, attached to the back side of the impeller of the centrifugal pump, supplies fuel to the engine for starting and acceleration to idle.  The vane pump is of the type having a stationary centrally disposed cam and an annular rotor with radially inwardly directed vanes which ride over the surface of the cam.  Before idle speed is attained, the vanes which are substantially hydraulically balanced and made of a light plastic material are adapted to lift off the surface of the cam without the need of pressure relief behind the vanes.
Patent CA-1111110-A (CA)
Inventor: JEAN OLIVIER A L
IPC: B01J19/12
Filed: 1977-11-15
Granted: 1981-10-20
Abstract: ABSTRACT OF THE DISCLOSURE                Apparatus is disclosed for treating dielectric material, which may be solid, liquid or gaseous, with microwaves.  The apparatus comprises a cylindrical receptacle for the material and has one or more microwave antennae mounted within the receptacle for radiating microwave energy into the material to be treated.  The form of the or each antenna is such that it defines a similar cylinder to the receptacle and is similarly oriented.  For example, there may be a single antenna in the form of a rod or helix coaxial with the receptacle, or a plurality of rod-like antennae arranged to lie along respective generatrices of a cylindrical surface coaxial with the receptacle.  The or each antenna may be hollow and provide with longitudinal slots for radiating the energy.  The apparatus provides uniform distribution of the energy along the length of the receptacle.
Patent CA-1088933-A (CA)
Inventor: COLLINS PAUL W
IPC: A61K31/20
Filed: 1977-11-21
Granted: 1980-11-04
Abstract: Abstract of the Disclosure The present invention encompasses compounds of the formula: (+) wherein one of A and B is methyl and the other is hydrogen, the wavy line represents R or S stereochemistry, n is 2-5, and R is hydrogen or an alkyl radical having 1-7 carbon atoms.
Patent CA-1100192-A (CA)
Inventor: VAN VECHTEN JAMES A
IPC: F25D11/00
Filed: 1977-11-30
Granted: 1981-04-28
Abstract: DIELECTRIC REFRIGERATOR USING ORIENTABLE DEFECT DIPOLES              Abstract of the Disclosure This disclosure describes a dielectric refrigerator using orientable defect dipoles and operating between a high temperature, Th reservoir illustratively supplied by a Stirling cycle refrigerator (8°K ? Th ? 20°K) and a low temperature, T1, load, illustratively the liquid He cooling fluid for Josephson junction or other superconducting devices (2°K ? T1 ? 6°X).         Exemplary practice of this invention provides cooling from the limit of a refrigerator based on the Stirling thermodynamic cycle (20 to 8°K) to operating temperatures of common and useful superconductive devices (3 to 6°K).  Orientable electric dipoles of defects in electrically insulating materials, e.g., crystals, are utilized to provide cooling in the range from (8-20°K) to (2-6°K).  The following are particular considerations concerning the practice of this invention: use of LiF, MgO and BeO as host crystals; use of OH and/or NH2 as defects in LiF, and use of HF, HC1, HBr and/or NH as defects in MgO or BeO; mechanical or electromechanical means to make and break thermal contact between dielectric crystal and load and between load and reservoir; and use of thermal rectifiers to obviate the need for thermal switches in order to transfer heat from the load to the refrigerator material and thence to the reservoir.
Patent CA-1067807-A (CA)
Inventor: WYMAN RANSOME J
IPC: B60C7/12
Filed: 1977-12-22
Granted: 1979-12-11
Abstract: BICYCLE TIRE        ABSTRACT OF THE DISCLOSURE     A solid, monolithic bicycle tire made of urethane rubber with a cured hardness of from 50 to 95 Durometer A.  The tire is formed with a pair of laterally spaced bead shoulders that seat on the bead seats of the wheel rim, and has a circumferential, arch-shaped tunnel formed in the inner side of the tire between the bead shoulders.  The tunnel cooperates with the channel in the bottom of the wheel rim to form an annular void, or air space, that allows the tire to collapse locally under excessive impact loads, and at the same time provides a space into which the solid urethane elastomer can be displaced under compression. Under normal riding conditions, most of the light shock loads experienced when riding on a relatively smooth road surface are absorbed by the resiliency of the urethane rubber, with only a minor amount of deflection of the arched tunnel.  A severe im-pact causes the tunnel to collapse to a greater extent, thereby absorbing the shock load and preventing damage to the wheel rim. The tire is cast in a mold, using liquid urethane resin cata-lyzed to cure in 3 to 5 minutes at room temperature (i.e. 80° to 100°F).
Patent CA-1095927-A (CA)
Inventor: KRISTIANSEN ODD
IPC: C07F9/24
Filed: 1978-02-10
Granted: 1981-02-17
Abstract: Abstract of the Disclosure Compounds of the formula I                                  (I) wherein R1 is methyl or ethyl, R2 is C3-C5-alkyl, R3 is methyl or ethyl and R4 and R5, each independently of the other, is hydrogen or C1-C5-alkyl. possess valuable pesticidal especially insecticidal activity.
Patent CA-1058958-A (CA)
Inventor: DRUNGIL WALTER J
IPC: B30B15/00
Filed: 1978-02-22
Granted: 1979-07-24
Abstract: SOUND ABATEMENT DEVICE FOR MECHANICAL PRESSES               Abstract of the Disclosure A sound abatement device for large mechanical presses of the type which employ large gears and operate at relatively high speeds.  The device is especially adapted to reduce noises emanating from the enclosed crown of such presses where the press gearing, drive means and bearings are located, and, to this end, the device desirably is positioned in openings in the base of the enclosed crown through which the pitmans or connecting links for moving the slide or ram of the press extend, and through which the crown generated noises normally are released.  The device, while being positioned in the openings through which the pitmans or connecting links extend does not interfere with, or impede, the vertical and oscillating movements thereof.
Patent CA-1088585-A (CA)
Inventor: WIESE WINFRED J
IPC: F16J15/34
Filed: 1978-03-07
Granted: 1980-10-28
Abstract: ABSTRACT           A mechanical seal assembly having a backup ring for a soft seal ring that minimizes distortion of the soft seal ring.  A mechanical seal assembly wherein at least one of the seal faces is constructed and arranged to provide substantially constant seal balance as the seal ring wears down in operation.
Patent CA-1080454-A (CA)
Inventor: CECERE ANDREW P
IPC: D06C5/00
Filed: 1978-05-25
Granted: 1980-07-01
Abstract: ABSTRACT OF THE DISCLOSURE                The disclosure relates to methods and apparatus for finishing tubular knitted fabric involving the steps of laterally distending the fabric to flat, two-layer form by passing it over a spreader frame, and discharging the fabric from the spreader frame into a pair of opposed calendering rolls.  Improved arrange-ments are provided for engaging the tubular fabric, across its fully spread width, above and below the spreader, for independently advancing or retarding the respective layers of the fabric in order to bring them into proper alignment.  The improved arrangements include a thin, flat contact plate, incorporated into the spreader frame structure, which provides a contact support from the fabric, enabling it to be drivingly engaged by independently driven contact rolls.  The structure enables the fabric to be adjusted substantially across its full width, reducing to a practicable minimum areas at the extreme edges of the fabric tube that are not under positive control during the reducing to a practicable minimum areas at the extreme edges of the fabric tube that are not under positive control during the adjustment stage.  The apparatus also includes and improved entry guard arrangement, which facilitates the machine operator's attendance to the equipment and process while improving working conditions from a safety standpoint.
Patent CA-1089091-A (CA)
Inventor: DAVIDSON ALLEN L
IPC: H01Q1/24
Filed: 1978-06-19
Granted: 1980-11-04
Abstract: PORTABLE RADIO ANTENNA                   ABSTRACT OF THE DISCLOSURE      An antenna for a hand-held radio transceiver includes first and second elements extending from the radio's case.          The first element is comprised of a pair of series coupled members having electrical lengths of one-half and one-quarter wavelength, respectively, with the free end of the second member being coupled to the transmitter output.  The second element couples to the radio's electrical ground and is configured to form a transmission line with the second member.  The effective electrical length of the second element, including the influence of the elements parasitic coupling to the radio, is adjusted to be one-quarter wave-length.     The resulting antenna structure minimizes surface currents across the radio's body, thereby substantially eliminating power loss caused by absorption in the user's body.
Patent CA-1077553-A (CA)
Inventor: PIERPOLINE MARIO F
IPC: F16C33/10
Filed: 1978-09-08
Granted: 1980-05-13
Abstract: PRESSURE-FED JOURNAL BEARING            ABSTRACT OF THE DISCLOSURE         A pressure-fed journal bearing for a steam turbine is shown having a generally tangentially oriented oil inlet discharging at the horizontal centerline of the supported shaft to utilize the pressure head of the oil and retain laminar flow in the direction of rotation of the shaft.          Seals are disposed in the axial ends of the bearing to minimize end leakage and confine the oil flow to an outlet channel generally opposite the inlet and likewise tangen-tially oriented to receive the discharged oil with minimal bearing losses.  The oil flow rate through the bearing can be regulated by an orifice in the outlet or inlet channel.
Patent CA-1060356-A (CA)
Inventor: CRUM ROBERT L
IPC: B62D55/20
Filed: 1978-09-20
Granted: 1979-08-14
Abstract: Abstract of the disclosure A method of relubricating a track link hinge joint formed by adjacent track links connected for pivotal interaction by means of a track pin carried by one link extending co-axially through a bushing carried by an adjacent track link, wherein the track pin has a lubricant retaining bore extending axially there-through with passages extending from the bore to the outer surface of the track pin adjacent the bushing for passing lubricant from the bore to lubricate the surface and seals positioned within each end of the bore for retaining lubricant therein.  The method comprises passing a first seal positioned at one end of the bore through the bore into the position of a second seal at the opposite end thereof to expel the second seal from the bore so that the bore is open at one end.          Lubricant is then inserted into the bore through the open end thereof.  The open end of the bore is then sealed to retain the lubricant therein.
Patent CA-1103638-A (CA)
Inventor: HARVEY WILLIAM J
IPC: G03B15/04
Filed: 1978-10-16
Granted: 1981-06-23
Abstract: ABSTRACT OF THE DISCLOSURE    A photoflash unit having a flashed lamp indicator comprising two layers of film having different colors, one of the layers being a heat-shrinkable material and the other layer being translucent and substantially unaffected by the heat of lamp flashing.  An adjacent indicia sheet provides an aperture through which one of the indicator colors is visible.  Upon flashing of an associated lamp, the heat shrinkable layers shrivels from view and the color of the other layer becomes visible through the aperture to clearly identify which lamp was flashed.  In one embodiment, the two-color indicator is used to identify the last lamp flashed in a sequence, while each of the preceding lamps in the sequence has a respectively associated single-layer color indicator which shrinks away to leave a void upon flashing of the lamp.
Patent CA-1129019-A (CA)
Inventor: DRESSEN ANTON
IPC: H03B5/32
Filed: 1978-11-22
Granted: 1982-08-03
Abstract: ABSTRACT         An oscillator is disclosed having a one-stage amplifier and a quartz crystal resonator which operates in series resonance with a L-C oscillating circuit.  An oscillating circuit which is tuned to a harmonic of the oscillator frequency is also provided which is connected via a filter device to an output of the amplifier stage.  A switching device is provided which short circuits the oscillating circuit tuned to a harmonic as and when required.  The oscillator is useful in high-speed on-off switching arrange-ments, especially non-mechanical printers.
Patent CA-1105729-A (CA)
Inventor: FALL DON R
IPC: F16F15/123
Filed: 1978-12-01
Granted: 1981-07-28
Abstract: TORSIONAL VIBRATION DAMPER ASSEMBLY            Abstract:    A torsional vibration damper assembly (10) for use in a torsional coupling between a driving member and a driven member wherein the damper assembly provides a very low rate, high amplitude deflection.  The damper assembly includes a hub (26) adapted to be connected to a driven shaft and provided with a pair of oppositely extending arms (43,54), a driving plate having a pair of driving members (19) cooperating with the hub arms, a pair of floating equalizers (64,65) journalled onto the hub, and a plurality of damping springs (91-97) positioned between the arms (75,79) of the equalizers, the hub arms and the driving members.