baber/WOPTO huggingface dataset:
Patent CA-1122113-A (CA)
Inventor: BRITTON MICHAEL W
IPC: E21B43/24
Filed: 1979-04-25
Granted: 1982-04-20
Abstract: FRACTURE PREHEAT OIL RECOVERY PROCESS            Abstract of the Disclosure A zone of increased heat and enhanced fluid mobility is established between an injection well and a production well vertically traversing a heavy oil (bitumen, tar) reservoir by (a) first horizontally hydraulically fracturing between the wells, and (b) then injecting hot water and/or steam into the injection well at a very high rate, at a sufficient pressure, and for a sufficient time (holding sufficient back pressure on the production well if needed) to float the formation along the fracture system between the wells, to effect channel flow of fluids through the floated fracture system (with production from the production well), and to effect effective and uniform heating of substantial reservoir volume perpendicular to the channel flow.  Thereupon, other thermal methods such as matrix flow steam flooding can be employed to recover additional oil.
Patent CA-1119396-A (CA)
Inventor: REEKSTIN JOHN P
IPC: G03F9/00
Filed: 1979-04-30
Granted: 1982-03-09
Abstract: HIGH RESOLUTION ALIGNMENT TECHNIQUE AND APPARATUS              ABSTRACT OF THE DISCLOSURE      There is provided a technique and apparatus for aligning a mask to a substrate with high precision using Moire fringe effects produced by superimposing diffraction gratings.  The gratings comprise first and second patterns of horizontal and vertical lines and spaces, respectively.  The first pattern comprises horizontal and vertical lines and  spaces of a first width.  The second pattern comprises horizontal and vertical lines of a second width which differs from the lines in the first pattern by a small amount .DELTA. .  The patterns are superimposed to provide a Moire fringe effect.  When alignment occurs, a symmetrical pattern is provided.  If misalignment in the X, Y or .theta. coordinate occurs, an assymmetrical or skewed pattern of Moire fringe effects is generated.
Patent CA-1128025-A (CA)
Inventor: HEPWORTH WILLIAM W
IPC: G01D15/16
Filed: 1979-05-23
Granted: 1982-07-20
Abstract: INSERT MOLDED INSTRUMENT MARKER PEN WITH ANCHORED STYLUS          Abstract of the Disclosure Insert molded instrument marker pen with a stylus tube firmly secured therein by the provision thereon of an anchoring projection embedded in the insert molded body of the marker. Preferably, the anchoring projection includes a "U-shaped" por-tion conforming to a section of the outer surface of the tube and outwardly extending flanges at the top  of the U-shaped portion, the projection being metal and being welded to a metal stylus tube.
Patent CA-1128457-A (CA)
Inventor: SUGINAKA MUTSUO
IPC: B65G39/07
Filed: 1979-06-27
Granted: 1982-07-27
Abstract: Abstract of the Disclosure A lagging body for a belt conveyor pulley comprises a wide and long rubber substrate and a number of rectangular or square small plate like ceramic lagging elements aligned in the lateral and longitudinal directions and secured on the surface of said wide and long rubber substrate having a given thickness, wherein a lagging element is produced by adding an inorganic bonding agent essentially consisting of glassy material to ceramic particles, molding the resultant particles into a rectangular or square small plate-like article and firing or sintering the small plate-like article, and a number of the lagging elements are aligned on the surface of a wide and long length rubber substrate in the longitudinal and lateral directions and secured thereon.          A free size lagging body is available to secure onto the outer periphery of a pulley drum by free size for repairing the pulley drum so as to eliminate inconvenience caused by the exchange of damaged pulley and wastefulness of time for waiting for the supply of new pulley.
Patent CA-1123729-A (CA)
Inventor: THORNE PAUL M
IPC: E02D27/52
Filed: 1979-09-27
Granted: 1982-05-18
Abstract: ABSTRACT OF THE DISCLOSURE      Method and apparatus for protecting subsea wellheads and christmas trees from damage by anchors, fishing nets, trawl boards, and other towed devices. The apparatus includes an annular, rigid protective enclosure with inner and outer walls that define a hollow annular chamber, and a plurality of bag-like containers spaced around and attached to the enclosures outer wall.  The annular chamber is in communication with the interiors of the containers by means of ports through the enclosure's outer wall, whereby when cement is pumped into the chamber it also flows into and fills the con-tainers to form a smoothly contoured shield around the enclosure.  Should an anchor or other device become fouled on this shield, the container or containers involved will break away and let the anchor continue on its way up and over the enclosure without damage to the wellhead or other well equipment.     -1a-
Patent CA-1141745-A (CA)
Inventor: LAEPPLE WERNER
IPC: C10M111/04
Filed: 1979-11-14
Granted: 1983-02-22
Abstract: ABSTRACT OF THE DISCLOSURE        A stable aqueous dispersion of a solid lubricant combination of MoS2 and graphite and an acrylic resin is used to coat bearing members to provide an air drying long lasting lubricant coating.  A typical formulation is 60 to 80% water, 15 to 30% MoS2 and graphite in the weight ratio of 1.5:1 to 2.5:1 and 5 to 10% polybutyl acrylate.  The MoS2 and graphite preferably have a particle size of less than 5µm.
Patent CA-1123110-A (CA)
Title: Floating point processor having  concurrent exponent/mantissa operation
Inventor: WHIPPLE DAVID L
IPC: G06F9/30
Filed: 1979-11-28
Granted: 1982-05-04
Abstract: ABSTRACT OF THE DISCLOSURE     A Floating Point Processor or Floating Point Unit (FPU) with capability for performing exponent/sign-related calculations concurrently with mantissa-related calculations.  The operation of the FPU within the context of a general purpose digital computer system is shown.  The FPU has control, mantissa, and exponent/sign functional blocks which have unique architectural arrangements and interconnections therebetween, and also have interfacing structure for connecting system control and clock signals to the control block.  The operation of the FPU is timed in a particular manner to permit is operation to be transparent to, or to not impact operation of the CPU, when the FPU communi-cates with main memory or the CPU.
Patent CA-1139587-A (CA)
Inventor: BARKER ROBERT I
IPC: G01N11/04
Filed: 1980-01-04
Granted: 1983-01-18
Abstract: 43-1025A APPLICATION FOR LETTERS PATENT FOR METHOD AND APPARATUS FOR MEASURING THE RHEOLOGICAL PROPERTIES OF AN EXTRUDABLE MATERIAL ABSTRACT OF THE DISCLOSURE The rheological properties of an extrudable material can be measured by extruding a strand of the material, measuring its diameter continuously, to give a series of diameter values, interpreting the variations in the strand diameter so as to characterize the surface of the strand, and deriving rheological data from the surface characteristics of the strand. The variations in the strand diameter can be interpreted as to peak-to-peak amplitude, average diameter value, the frequency of significant extreme values, standard deviations from a mean value, and the like. By means of these mathematical character-izations, the rheological behavior of the extrudable material can then be derived. The scorch behavior of a curable elastomer can be measured. The heterogeneity of a rubber compound can be described, or the macromolecular properties of a polymer can be measured (such as "gel", or degree of cross-linking.)
Patent CA-1132339-A (CA)
Inventor: EWING BRUCE A
IPC: F01D5/02
Filed: 1980-02-18
Granted: 1982-09-28
Abstract: Abstract of the Disclosure A method for manufacturing a turbine rotor assembly from dissimilar materials to produce a hybrid composite rotor including the steps of:  preforming a hub disc of a controlled outer diameter and prefabricating a ring of airfoils including a machine slotted fixture ring of mild steel slotted to receive airfoils inserted therein; and wherein the method further includes the steps of grinding the internal diameter of the mild steel ring to expose the airfoil bases to locate them at a radius line which will correspond to the outer diameter of the hub disc rim to maintain a pressure fit relationship therebetween when the ring of airfoils is pressed or shrunk on the outer diameter of the disc and thereafter sealing exterior joint lines between the mild steel fixture ring, airfoils and hub disc to form a pressure sealed surface on the exterior of the joined parts; subjecting the full outer planar extent of the pressure sealed configuration to an elevated pressure while maintaining it under an elevated temperature to produce a hot isostatic bonding of the base of each of the airfoils against the controlled outside diameter of the hub disc for a time period to produce a diffusion bonded metallur-gical joint between the parts; and thereafter removing the mild steel fixture ring from the joined parts by dissolving it in a pickling solution thereby to define precision flow passages between facing surfaces of the airfoils and the hub surface of the disc.
Patent CA-1172335-A (CA)
Inventor: LEUNG DANIEL L
IPC: G06F17/22
Filed: 1980-03-06
Granted: 1984-08-07
Abstract: File 1358 P/2 CA     APPARATUS FOR ENCODING IDEOGRAPHIC CHARACTERS                   ABSTRACT OF THE DISCLOSURE           A word processing system for Chinese type characters includes a keyboard with a generally standard key arrangement for encoding the characters in accordance with their basic stroke type and sequence.  Up to eight basic stroke types may be employed, although a five stroke system is preferred.  Recurrent code sequences of two, three, four and five strokes are identified. An "end of character" code may be generated with the space bar.  Preferred sequences are assigned key positions so as to provide an ergonometrically efficient keyboard.  Average typing speeds using the keyboard are comparable on a character/word basis to those for English.
Patent CA-1133969-A (CA)
Inventor: MICHAEL HARALD
IPC: E03F1/00
Filed: 1980-03-06
Granted: 1982-10-19
Abstract: ABSTRACT OF THE DISCLOSURE         For a pneumatically driven drainage facility, an intermediate station for receiving and boosting the liquid and air through the system. This intermediate station comprises a tank with an inlet for receiving the air driven liquid such that the liquid collects at the bottom of the tank. A first branch line communicating with the tank above the surface of the collected liquid extends outwardly from the tank for the passage therethrough of air which has entered the tank.  A second branch line leads from the tank for delivering the collected liquid, a pump being provided for passing the liquid from the tank into the second branch line.  The two branch lines join again at a point downstream from the tank in a descending conduit section, the first branch line entering the descending conduit section downstream from the entry therein of the second branch line.  The descending conduit section ends with a U-shaped adjoining pocket.
Patent CA-1103573-A (CA)
Inventor: GALL JOHN C
IPC: A47C1/035
Filed: 1980-04-24
Granted: 1981-06-23
Abstract: ABSTRACT    A reclining chair adapted to be positioned in close adjacency to a wall, the chair having a frame and a body supporting unit which is movable relative to the frame between an upright sitting position and a variety of reclining positions.          The frame is supported on ground engaging rollers and on rocker feet, the latter being connected by linkage arrangements to the body supporting unit. When the occupant moves the body supporting unit to reclining position both the chair frame and body supporting unit are caused to be moved away from the wall so that no part of the chair is in physical contact with the wall. Substantially 40% of the movement away from or toward the wall is effected by the body supporting unit and substantially 60% of the movement is effected by the frame.          Upon movement to upright position the chair frame and body supporting unit return to the original position in close adjacency to the wall.
Patent CA-1121987-A (CA)
Inventor: ALBANO JOHN V
IPC: B01J8/04
Filed: 1980-05-21
Granted: 1982-04-20
Abstract: IMPROVED APPARATUS FOR CARRYING OUT CATALYTIC EXOTHERMIC AND ENDOTHERMIC HIGH-PRESSURE GAS REACTIONS       AND PROCESSES FOR EFFECTING SUCH REACTIONS Abstract of the Disclosure Apparatus for carrying out catalytic exothermic and endothermic high-pressure gas reactions, comprising a single-walled pressure vessel or shell containing cross-flow (e.g., radial flow) heat transfer exchangers, a continuous catalytic bed having at least two stages, and means for effecting "cross-over" material flows from "outside" to "inside" (for exothermic reactions) and vice versa (for endothermic reactions), whereby conditions of:  maximum gas temperature always being in the core of the apparatus, minimal pressure drop, and minimal compression of catalyst particles are achieved, along with significant economic savings in cost of the apparatus and catalyst (through extension of catalyst life).
Patent CA-1147267-A (CA)
Inventor: AKAGIRI KENZO
IPC: H03G11/00
Filed: 1980-05-26
Granted: 1983-05-31
Abstract: ABSTRACT            A gain control circuit for an audio signal recorder includes a first transmission path having a variable gain amplifier for compressing an audio signal with a first gain characteristic in response to a first control voltage supplied thereto, a second transmission path having a variable gain amplifier for compressing the audio signal with a second gain characteristic different from the first gain characteristic in response to a second control voltage supplied thereto, a control circuit responsive to at least one of the compressed audio signals from the variable gain amplifiers for producing the control signals, and an adding amplifier for adding the compressed audio signals from the first and second transmission paths whereby the compressed audio signal from the first transmission path is effectively transmitted for recording when the level of the audio signal is below a predetermined value and the compressed audio signal from the second transmission path is effectively transmitted for recording when the level of the audio signal is above the predetermined value.
Patent CA-1129465-A (CA)
Inventor: RASK ERIC H
IPC: H01H3/30
Filed: 1980-06-20
Granted: 1982-08-10
Abstract: ABSTRACT OF THE DISCLOSURE A variable drive coupling link assembly is utilized to drivingly couple a rotary motor operator mechanism to a circuit breaker mechanism operator member such as to provide a coasting zone intermediate the end of an operating member charging stroke and the start of an operating member charging stroke and the start of an operating member return stroke during which the motor operator mechanism may coast to a stop.  The link assembly is structured to abruptly shorten its effective driving length at the conclusion of a charging stroke and to re-establish its full effective driving length by the conclusion of the return stroke, thereby rendering the charging and return strokes of the operator member equal in length.
Patent CA-1155318-A (CA)
Inventor: BLACK ROBERT D
IPC: B65G23/44
Filed: 1980-07-03
Granted: 1983-10-18
Abstract: BELT DRIVE WITH SPLIT IDLER MEANS                  Abstract of the Disclosure A drive system preferably a belt drive system including sheaves about which a drive belt is trained and tensioned by idler means intermediate the sheaves, wherein the idler means is a pair of coaxially spaced apart idlers journaled on a shaft which is carried by a carrier disposed between the idlers.
Patent CA-1142091-A (CA)
Inventor: LUZZI LOUIS A
IPC: A61K47/08
Filed: 1980-07-08
Granted: 1983-03-01
Abstract: Use of Dimethyl Isosorbide In Liquid Formulation of Aspirin ABSTRACT OF DISCLOSURE      A stabilized aspirin composition has been found which is comprised of acetylsalicylic acid and dimethyl isosorbide.
Patent CA-1139938-A (CA)
Inventor: RYMARCHYK NICHOLAS M
IPC: C21C5/46
Filed: 1980-08-26
Granted: 1983-01-25
Abstract: INSTRUMENT LANCE FOR BASIC OXYGEN STEELMAKING FURNACE                Abstract of the Disclosure A lance assembly for insertion into steelmaking vessel includes a sensor instrument supporting nozzle assembly which projects outwardly from the lance and which is cooled by water circulation.  The lance has provisions for the inclusion of an inert gas which is directed into a reduced diameter cable enclosing pipe connected to the nozzle supporting the sensor instrument.
Patent CA-1127877-A (CA)
Inventor: BELANSKY RUDOLPH J
IPC: F16H1/00
Filed: 1980-09-29
Granted: 1982-07-20
Abstract: Case 3518-00 CURVED TOOTH GEAR COUPLING     ABSTRACT         A gear coupling in which the two halves have curved teeth and tooth patterns which mirror each other. Both the pressure angle and the spiral angle for any contact point on either the concave or convex side of the tooth on the first coupling half, is equal to the corresponding angle for the corresponding point on the convex or concave tooth of the second coupling half. The cross-sectional dimension of the tooth may increase from the inside to the outside of the gear. Axial misalignment of the two shafts which mount the coupling halves can be accommodated by placing the teeth of the two halves on the surfaces of cones hav-ing substantially equal apex angles and relieving the surfaces of the teeth in the region adjacent their ends.
Patent CA-1165402-A (CA)
Inventor: DOTY WENDELL E
IPC: H05B41/00
Filed: 1980-10-14
Granted: 1984-04-10
Abstract: A-371 BATTLE CREEK EQUIPMENT CO.     ABSTRACT OF THE DISCLOSURE          An irradiation apparatus having a housing, a reflector and a source of ultraviolet radiation.  The irradiation apparatus has a timing mechanism detachably located within the housing, the timing mechanism being an integral portion of the circuit which supplies power from a power source to the ultraviolet radiation source.  The timer is adapted to be removed from the housing and attached to the housing by means of a cord having a non-standard plug to allow the lamp to be operated by means of the timer from a remote position.
Patent CA-1107667-A (CA)
Inventor: FEE MAX J
IPC: B65D39/04
Filed: 1980-10-14
Granted: 1981-08-25
Abstract: Abstract of the Disclosure A flange for a container opening has an internally threaded aperture to receive a plug, and a plurality of external serrations in a circularly spaced-apart relationship around the periphery of the upper portion of the flange.  The plug is externally threaded and, when mated with the flange, closes the aperture.  Both the flange and the plug are molded out of plastic materials as single integral components.  On the lower portion of the flange is an annular lip which is positioned beneath and extends radially beyond the external serrations.  A container suitable for the flange has a boss around the container opening in  a wall (usually the end wall) of the container.  The boss is formed with internal serrations equal in number to the number of exter-nal serrations on the flange.  This boss can be crimped onto the flange placed in the opening, such that the two groups of serrations permanently interlock with one another thereby securely locking the flange into the container.  At the same time the annular lip seals against the inner face of the wall (usually the end wall).  The plug is removable from the flange when access to the con-tents of the container is desired.
Patent CA-1145795-A (CA)
Inventor: ADAMS JAMES B JR
IPC: F42D1/04
Filed: 1980-10-22
Granted: 1983-05-03
Abstract: SAFETY SWITCH FOR WELL TOOLS            ABSTRACT OF THE DISCLOSURE       A mechanical safety switch for closing electrical con-tacts in a well tool.  The mechanical switch has several safety requirements which must be satisfied before the elec-trical contacts will close including upward pull on a wireline and a preselected value of fluid pressure exterior to the switch.  The safety switch can be incorporated into a well perforating gun by a conventional wireline.  Preferably, the electrical circuits of the well perforating gun should include a motion sensor and a timer for increased safety.
Patent CA-1158349-A (CA)
Inventor: RISCH LOTHAR
IPC: H01L27/148
Filed: 1980-10-23
Granted: 1983-12-06
Abstract: ABSTRACT OF THE DISCLOSURE An x-y infrared CCD sensor employing the photoelectric effect as in a p-doped semiconductor substrate of silicon with an n+pn diode as the infra-red sensor element with a three layer structure in the vertical direction in the semiconductor substrate and a n-channel charge coupled device shift register.  The device has a metal-oxide-semiconductor storage electrode directly adjacent to the n-region of the three layer structure.  The device is manufactured by masked ion implantation with the doping density for the three layer sequence such that the doping density for the layer operating as the emitter is greater than the doping density for the layer operating as a base, which in turn is greater than the doping density for the layer operating as the collector.
Patent CA-1143043-A (CA)
Inventor: STELTE DAVID J
IPC: H04Q11/04
Filed: 1980-10-30
Granted: 1983-03-15
Abstract: TITLE AN ARRANGEMENT FOR CONCENTRATING PULSE CODE MODULATION   PROCESSING CIRCUITS IN A DIGITAL TELEPHONE OFFICE ABSTRACT OF THE DISCLOSURE           Pulse Code Modulation (PCM) line circuits include analog and PCM processing circuitry.  These circuits are separated into an analog line circuit portion and a PCM processing circuit portion.  An analog network is connected to the analog line cir-cuits and provides concentration to a minimal number of PCM processing circuits.
Patent CA-1149236-A (CA)
Inventor: HAAS RICHARD G
IPC: B31B17/00
Filed: 1980-11-07
Granted: 1983-07-05
Abstract: APPLICATION FOR LETTERS PATENT             for CONTAINER CLOSING MEANS AND PROCESS          ABSTRACT OF THE INVENTION    A machine and process useful for fastening a closure member to a container with an upstanding tubular wall, an end edge of which is folded over onto itself to form a folded-over, reinforced portion of double thickness at that end, the closure member having an upstanding tubular inner wall conforming to the inner surface of the foldedover, reinforced portion and a downstanding tubular outer wall connected thereto and conforming to the outer surface of the folded-over, re-inforced portion, thereby forming a tubular channel in which the folded over, reinforced portion is seated in frictional engagement, which comprises a dish-shaped fastening head adapted to be positioned around the closed end of the container between the jaws of a pincer, one end of which comprises a punching point and the other of which comprises an anvil, and a wedge or a wedging toggle arranged to wedge a plurality of said punching points into selected portions of the upstanding tubular inner wall of the channel into the inner surface of the folded-over, reinforced portion against the anvils on the opposed jaws.  The wedge or toggle is designed to give a mechanical advantage of at least two and to engender a pressure on the selected portions pinched-in by the jaws sufficient to cause hot melt adhesive to flow in or through cut areas in the folded-over portion and to seal the cover thereto without application of extraneous heat.                       INVENTOR:    Richard G. Haas Rural Route 2 South Haven, Michigan 49090
Patent CA-1146618-A (CA)
Inventor: HEIJOLA PENTTI
IPC: B60V1/14
Filed: 1980-12-10
Granted: 1983-05-17
Abstract: ABSTRACT            The invention relates to an air-cushion vehicle comprising a hull,  two air propulsion units  located  at  a  considerable distance from each other and one or several drive engines for the propulsion units. One of the propulsion units is located at the front end of the vehicle at one side of its longitu-dinal axis.  The other unit is located at the rear end of the vehicle at the opposite side of said axis.