baber/WOPTO huggingface dataset:
Patent CA-1100831-A (CA)
Inventor: HEDENBERG GUNNAR
IPC: A23N17/00
Filed: 1978-05-09
Granted: 1981-05-12
Abstract: A device for pelletizing and feeding of fodder with varying degrees of moisture content ABSTRACT OF THE DISCLOSURE       This invention relates to a pelletizing and feeding device for fodder with varying degrees of moisture, i.e., so called semi-moist fodder.  The device can also take care of fish waste and other waste products, which can be used as fodder.          The device comprises a rotatable container for the fodder, at the bottom of which a feeding device is arranged comprising a feeding chamber non-rotatably connected to the container and a feed screw extending through the feeding chamber and which does not take part in the rotation of the container and feeding chamber.  The feed screw presses the fodder through a number of holes in the feeding chamber, at which the fodder is cut into suitable pellets or pieces.  The container is further provided with at least one internal mixing arm constituting a support for the end of the feed screw located inside the container.
Patent CA-1084836-A (CA)
Inventor: KING DAVID W
IPC: E21B34/06
Filed: 1978-05-23
Granted: 1980-09-02
Abstract: ABSTRACT OF THE DISCLOSURE An improved wireline borehole shifting comprises upwardly extending upper dog means and downwardly extending lower means, with the upper dog means being extendable and retractable responsive to slack or tension, respectively, in the wireline; with the lower dog means being extendable and retractable and longitudinally movable relative to the upper dog means responsive to movement of a reciprocator shaft and power means that is disposed within the tool body beneath the lower dog means and with the lower dog means being at all times movable radially inwardly against a spring bias force.  Also disclosed is an arrangement utilizing the shifting tool for running a caliper log of the borehole conduit diameter profile for a selected region, with the shifting tool lower dog means acting as the caliper sensing means.  Further disclosed are unique methods for utilizing the shifting tool to perform shifting operations on devices that are dis-posed in wellbore conduits.  Additionally disclosed are unique methods utilizing the shifting tool to initiate shifting movement in such devices.
Patent CA-1102711-A (CA)
Inventor: KEEFER BOWIE G
IPC: B01D61/10
Filed: 1978-06-12
Granted: 1981-06-09
Abstract: ROTARY REVERSE OSMOSIS APPARATUS AND METHOD            ABSTRACT OF THE DISCLOSURE             Reverse osmosis or ultrafiltration apparatus having first and second rotors revolving in the same direction about a central axis. The first rotor revolves at a higher speed and has an impeller which serves as a feed pump for the feed fluid. The second rotor revolves at lower speed and has a pressure vessel containing semi-permeable membranes which selectively permeate one component of a feed fluid, and has an integral diffuser casing for the feed pump.  This arrangement reduces disc friction and diffuser hydraulic losses compared to con-ventional centrifugal machinery with stationary casings.  The membranes are arranged so that centrifuge action within the rotating membrane assembly inhibits fouling and concentration polarization by differential buoyancy effects.  The impeller can be a centrifugal type with an externally surrounding diffuser, or it can be an external impeller type enclosing a pitot tube pump type diffuser.  Some embodiments include a centripetal energy recovery turbine for the concentrate fluid rejected by the membranes, the turbine runner being mounted on the first rotor remote from, or integral with, the impeller. Alternatively concentrate fluid energy can be recovered by using tangentially disposed nozzles mounted on the second rotor to discharge fluid backwards.  Permeate fluid energy can be recovered from permeate nozzles ejecting permeate fluid against an impulse turbine mounted on a third rotor journalled to rotate about the axis at a speed of about one-half of the speed of the second rotor.
Patent CA-1092424-A (CA)
Inventor: KAUFMAN ARNOLD S
IPC: B08B15/02
Filed: 1978-06-19
Granted: 1980-12-30
Abstract: AIR VENTILATION AND WASHING SYSTEM          ABSTRACT    An air ventilation and washing system for extracting noxious or other impure air, such as is present above the cooking surface of a stove having automatically activated electrical and mechani-cal fire control apparatus selectively responsive to changes in temperature is disclosed.  The air ventilation system has a hood structure providing a make-up air distribution plenum through which air is distributed and pressurized for equal distribution of makeup air along the length of the hood structure.  A vortex baffle is provided in the hood between a make-up air cavity and an exhaust cavity to cause efficient mixing of room air and make-up air from the exterior, while protecting personnel from exposure to the ex-terior make-up air, and a vortex chamber causes the mixing of the make-up air and room air with contaminated air from the stove.
Patent CA-1098638-A (CA)
Inventor: TROTTER JIMMY R
IPC: C08L23/14
Filed: 1978-10-12
Granted: 1981-03-31
Abstract: TITLE        BLENDS OF SUBSTANTIALLY AMORPHOUS OLEFIN COPOLYMERS AND COMPATIBLE TACKIFYING RESINS USEFUL AS HOT-MELT, PRESSURE-SENSITIVE ADHESIVES     Abstract of the Disclosure This invention relates to blends of compatible tackifiers with substantially amorphous olefin copolymers containing at least one C3  to C5 linear a-olefin and 40 to 60 mole percent of at least one C6 to C10 liner a-olefin which are useful as hot-melt, pressure-sensitive adhesives.  The unmodified copolymer base resins have melt viscosities in the range of >75,000 cp up to about 1,000,000 cp at 190°G.  The addition of the compatible tackifiers to the copolymer base resin causes a dramatic and unexpected increase in the shear adhesion failure time in addition to improved coatability as well as substantial increases in probe tack and peel adhesion values of the copolymers.
Patent CA-1114174-A (CA)
Title: Recovery of elemental sulfur and metal values from  tailings from copper recovery processes
Inventor: NARAIN KARTIK A
IPC: C22B34/34
Filed: 1979-02-09
Granted: 1981-12-15
Abstract: Abstract Process for recovery of copper, molybdenum, gold and elemental sulfur in tailings from hydrometallurgical processing of copper sulfide ores, particularly chal-copyrite.  The tailings are usually discarded, and thus the recovery of valuable elements therefrom makes the environmentally desirable hydrometallurgical processes of Fig. 1 economically feasible.      The tailings are concentrated to a small bulk volume by froth flotation to reject barren gangue and the process (Fig. 2) proceeds by removing sulfur from the solid con-centrate residue, preferably by volatilization or leaching with a sulfur solvent, and recovering the elemental sul-fur: leaching the residue with ferric chloride to selec-tively dissolve copper and iron: recovering copper from the liquid, or sending it back to the hydrometallurgical circuit; leaching the residue from the ferric chloride leach with cyanide to selectively solubilize gold, and recovering gold from the liquid, recovering molybdenum ore from the residue from the cyanide leach by froth flo-tation, and recovering molybdenum from the molybdenum ore.
Patent CA-1115329-A (CA)
Inventor: ERNST LARRY M
IPC: G03G15/00
Filed: 1979-02-08
Granted: 1981-12-29
Abstract: DYNAMIC REFERENCE FOR AN IMAGE QUALITY CONTROL SYSTEM  Abstract of the Disclosure A system for checking copy quality variables within the image area of an electrophotographic machine.          During a test cycle, quality is checked by producing sample test areas within the photoconductor image area ordinarily used for producing copies.  Reflectance measurements are made on the sample test areas and compared to a dynamically floating reference achieved by a reflectance measurement from a cleaned portion of the photoconductor within the image area.  The testing circuit is balanced so that the same reflectance voltage should be generated whether the single reflectivity-sensing device is viewing a sample test area or a cleaned reference area.  The system checks for quality variables such as toner concentration, image voltage and an abnormally low reflectance photoconductor and provides a partial check on its own fault-free condition during periods when it is not in use.
Patent CA-1102303-A (CA)
Inventor: BRADSHAW NORMAN F
IPC: F23J11/02
Filed: 1979-02-19
Granted: 1981-06-02
Abstract: ABSTRACT OF THE DISCLOSURE         A method and ducting system for collection of hot exhaust gases from paint curing oven heaters is disclosed for heat energy recovery in which a large collector duct is extended above the paint curing oven and into which is drawn large volumes of slightly warmed air heated by radiation from the paint curing oven or from secondary warm air sources.          The vent stack of each paint curing oven heater is extended into the interior of the collector duct, directing the hot exhaust gases into the center of the large volume air stream in order to cool the gases and allow the collection without the need for insulated collection ducting, thermal expansion joints or flow balancing dampers.  The heated air volume is passed through the heat recovery exchanger unit prior to be-ing exhausted to the atmosphere.  In one alternate version, the collector duct is mounted directly to the roof of the paint curing oven and in communication with an air space formed in the roof and side wall panels, which collects air heated by the roof and walls, as well as any gas leakage from the interior of the oven.  In another variation, a posi-tive pressure is created in the air space to preclude leakage from the oven interior.
Patent CA-1126119-A (CA)
Inventor: TURP GERALD
IPC: A61B17/30
Filed: 1979-03-26
Granted: 1982-06-22
Abstract: ABSTRACT OF THE DISCLOSURE           A device is disclosed for use in a laparoscopic tubal cauterization for blocking the fallopian tubes of a patient and comprises a substantially tubular body member having a piston slidably mounted therein; a spring urges the piston to  a first position relative to the body member; a button extends from one end of the body member for moving the piston to a second position against the urging of the spring; first and second electrodes are incorporated for either monopolar or bipolar treatment of the living tissue; the first and second electrodes are disposed to grasp the living tissue when the piston is in the first position and to release the living tissue when the piston is in the second position; the invention includes a circuit breaker for terminating continuity when the piston is disposed in the second position and means for disabling an activating switch when the piston is in the second position.
Patent CA-1147601-A (CA)
Inventor: TRACHTENBURG MARTIN
IPC: E06B3/58
Filed: 1979-03-30
Granted: 1983-06-07
Abstract: ABSTRACT        A glazing strip of extruded polyvinyl chloride plastic or the like has a cross sectional shape such as to provide a central cavity in which is disposed glazing putty for subsequent use by the installer.          When used to glaze a window pane in a sash this strip is cut to length from a roll or the like, and a wax paper or the like is removed from mutually perpendicu-lar lands on the plastic strip to uncover pressure. sensitive adhesive areas on these lands. The lands serve to hold the strip to the sash, and to the glass pane, while the strip is squeezed by means of a roller or blunt tool ox spatula, or one's fingers to cause the putty or caulking compound to issue from a slot provided for this purpose in the underside of the plas-tic strip.  The putty is thereby urged from the cavity into an L-shaped space between the strip and the window sash and pane such that a positive seal is provided for the window pane to hold it in place in the sash.
Patent CA-1122089-A (CA)
Inventor: HENRIQUES JOSEPH
IPC: F24B1/19
Filed: 1979-04-17
Granted: 1982-04-20
Abstract: ABSTRACT The efficiency of a convective heating system employing an elongate firebox is dramatically increased by the new features of increasing the combustion zone volume to approach that of the firebox and increasing the residence time of rising combustibles at ignition temperatures.
Patent CA-1122758-A (CA)
Inventor: FISHER SIDNEY L
IPC: A47L1/02
Filed: 1979-06-29
Granted: 1982-05-04
Abstract: AUTOMATIC WINDOW WASHER                   ABSTRACT OF THE DISCLOSURE     The window washer is suspended from the top of a building by a suspension line and moves up and down the line while cleaning the side of the building.  Cleaning liquid is dripped onto brushes which scour the surface to be cleaned.  A squeegee in wiping contact with the wetted surface wipes the cleaning liquid from such surface and collects it generally at a leading edge portion of the squeegee.          Then, collected cleaning liquid is removed by suction.
Patent CA-1094966-A (CA)
Inventor: ANDREN SVEN-OLOF
IPC: B65D77/32
Filed: 1979-06-29
Granted: 1981-02-03
Abstract: ABSTRACT OF THE DISCLOSURE           Opening arrangements for packing containers are realized inter alia in the form of a portion of the wall of the packing container delimited by means of an opening indication line which portion is opened with the help of a tearing thread.  The applica-tion of the tearing thread along a non-rectilinear opening indica-tion line is difficult and up to now it has not been possible to realize it automatically in the rapid manufacture of packing con-tainers from e.g. a moving material web.  In accordance with the invention an opening arrangement is now provided wherein an open-able part of the container wall, limited by a curved opening indication line, is opened with the help of a tearing thread which extends rectilinearly between two points on the opening indication line.  The tearing thread is applied so that on open-ing it follows and breaks up the material of the packing container along the curved opening indication line.  The possibility of applying the thread rectilinearly makes the opening arrangement especially suitable for application in the manufacture of packing containers from a moving material web, since the thread can be applied at high speed parallel with the direction of the web.
Patent CA-1145410-A (CA)
Inventor: ESTY JANET M
IPC: A61N1/06
Filed: 1979-07-18
Granted: 1983-04-26
Abstract: Abstract of the Disclosure A dispersive electrode has been devised for electro-medical equipment consisting of a thin sheet or layer of electrically conductive material covered on one or both sides by a flexible laminate.  To facilitate attachment to the skin of a patient during electrosurgery, the laminated sheet may be secured to a resilient backing member preferably having bifurcated ends to which an adhesive is applied in order to effect a secure connection to various parts of the body and to more readily conform to the contour of different parts of the body.  The pad includes a tab projecting from one end of the conductive layer which tab is preferably of rounded or somewhat circular configuration and adapted to be inserted into a snap-type connector.  The connector is in turn charac-terized by being a normally open connector having male and female, opposed snap-type fasteners which may be pressed together through an opening in the tab into snap-fitting engagement with one another to provide a firm but flexible means of electrical connection into the plate during an electrosurgical operation.  In the alternative, the tab may project rearwardly through a slot in the ground pad for connection to the electrical connector either by conventional connector means or a snap-type connector as described.
Patent CA-1131355-A (CA)
Inventor: NAKAMURA SHOICHI
IPC: H03G9/02
Filed: 1979-09-20
Granted: 1982-09-07
Abstract: ABSTRACT OF THE DISCLOSURE           A signal processing circuit for improving the signal-to-noise ratio of input  signals, such as audio signals recorded on tape, has a low-pass filter circuit for controllably filter-ing signals at the lower end of the frequency spectrum, and a high-pass filter circuit for controllably filtering signals at the higher end of the frequency spectrum, with the high-pass filter circuit and the low-pass filter circuit defining the only paths through the signal processing circuit for the input signals. Associated control circuitry provides first and second control signals to control the attenuation of signals at the lower-frequency and higher-frequency parts of the spectrum, respective-ly, in dependence on the amplitude of the input signals in the respective parts of the spectrum.  Preferably, the controllable low-pass and high-pass filter circuits are connected in parallel between input and output terminals, a low-frequency band control unit is provided to control the amount of attenuation of the low-pass filter circuit and a high-frequency band control unit is provided to control the cut-off frequency of the high-pass fil-ter circuit.  In one practical arrangement for recording audio signals, signals taken from the output terminal of the signal processing circuit are recorded on tape.  For playing back these recorded signals, the input and output terminals of the processing circuit are respectively connected to the output ter-minal and negative feedback input of an operational amplifier.
Patent CA-1148038-A (CA)
Inventor: TEMIN SAMUEL C
IPC: B05D1/18
Filed: 1979-09-28
Granted: 1983-06-14
Abstract: RESIN COATED WOODEN ARTICLES AND      METHOD OF COATING                          ABSTRACT           Prepolymerized resins are applied to wooden articles to coat them and impart a tough and abrasive resistant surface which protects the articles from deterioration and delamination due to shock, impact and abrasive forces.   The resins are applied by contacting the articles with a prepolymerized resin which has been dissolved in a readily vaporizable solvent to form a resin solution, coating the article with the resin solution, vaporizing the solvent from the resin coating and drying the resin coating.   The coated articles find particular utility in high shock and impact uses such as hockey stick blades.
Patent CA-1142256-A (CA)
Inventor: ROLING WILLIAM J
IPC: G11B17/038
Filed: 1979-10-15
Granted: 1983-03-01
Abstract: Abstract of the Disclosure An apparatus is disclosed for centering one or more magnetic discs on a rotatable spindle.  The apparatus includes a disc-carrying hub having a circumferential collar, a central housing supporting a centering ball, and a diaphragm joining the collar and housing, stiff in the radial direction but allowing axial movement of the centering element with respect to the collar.  The hub is attracted to a rotatable spindle by an annular permanent magnet mounted on the spindle opposite a similarly sized armature mounted on the hub.  A cup formed in the spindle at its center receives the centering ball and guides it to the center of spindle as the hub is attracted to the spindle.  After the centering ball is seated  in the center of the cup, the diaphragm flexes to allow continued axial movement of the collar to full engagement with the spindle.  A second embodiment of the apparatus is a tool for centering a disc pack on a spindle, wherein shoulder  screws extend through the tool and threadedly engage the spindle, to provide a hub-spindle attract-ive force in lieu of the magnet.
Patent CA-1127513-A (CA)
Inventor: LITTMANN MARTIN F
IPC: C21D8/12
Filed: 1979-10-16
Granted: 1982-07-13
Abstract: PROCESS FOR PRODUCING ORIENTED SILICON      IRON FROM STRAND CAST SLABS  ABSTRACT OF THE DISCLOSURE         A process for producing grain oriented silicon iron from strand cast slabs having uniformly high perme-ability and low core loss, comprising the steps of melting and refining a ferrous charge to obtain a melt containing critical ranges of carbon, manganese, sulfur and/or selenium and critically low levels of nitrogen, aluminum, and titanium, casting to a slab thickness of about 125 to about 225 mm, reheating the slabs to about 1330° to about 1400°C, hot rolling, annealing at about 925° to about 1050°C, cold rolling in two stages with an intermediate anneal to final thickness, decarburizing, and subjecting the material to a final anneal in a hydrogen-containing reducing atmosphere to effect secondary recrystallization.
Patent CA-1135403-A (CA)
Inventor: GIBSON WALTER G
IPC: H03J7/04
Filed: 1979-10-29
Granted: 1982-11-09
Abstract: RCA 72,428 Abstract An automatic fine tuning (AFT) circuit is provided which generates an AFT control signal in response to a video intermediate frequency (I.F.) signal. The I.F. signal is supplied to the input of a current source amplifier, which provides current signals of like phase relationship to a discriminator network. The discriminator network is comprised of two tuned circuits, one of which is resonant at a frequency below the desired frequency of the I.F. picture carrier, and the other resonant at a frequency above the desired frequency. The tuned circuits develop voltage variations which vary differentially in magnitude in response to the frequency deviation of the I.F. picture carrier from its desired frequency. The differentially related voltages are detected by two peak detector networks for use as AFT control signals. The current source amplifier and peak detector networks may be conveniently fabricated on a single I.C. chip. The tuned circuits are coupled to the current source amplifier and peak detector networks through two external I.C. terminals.                     `
Patent CA-1113078-A (CA)
Inventor: ALVAREZ PATRICIO D
IPC: F16K25/00
Filed: 1979-11-06
Granted: 1981-11-24
Abstract: GATE VALVE WITH POSITION RESPONSIVE INTERLOCK     Abstract of Disclosure An improved gate valve of the expanding type wherein a gate and segment assembly having cooperative wedge surfaces are moved linearly between a pair of valve seats to block the flow therebetween in one position and open the flow in another, the fluid flowing through aligned ports in the gate and segment in such open position.  The improvement lies in substituting for prior art springs a guide rail (28,28') fixed to the valve housing or body and extending parallel to the stroke of the movable members, together with a rocker arm (54) pivotally mounted on one member and having a slot (66) receiving a pin (58) out of the other.  A pair of lobes (64) extend from the opposed ends of the rocker arm (54) and contact the guide member. When the gate and segment assembly are at any position be-tween the ends of its stroke, the rocker arm keeps both pairs of wedge surfaces tightly in contact, preventing any expansion. At either end position, one of the rocker lobes enters a gap in the guide rail, permitting the rocker to rotate and allowing wedging action between the two mem-bers to expand their overall thickness.
Patent CA-1135678-A (CA)
Inventor: BUTTER STEPHEN A
IPC: B01J29/46
Filed: 1979-11-15
Granted: 1982-11-16
Abstract: ABSTRACT         A catalyst useful for conversion of synthesis gas to naphtha is prepared by carbon monoxide treatment of a single particle composite of iron oxide, hydrogel matrix and crystalline zeolite having a silica/alumina ratio greater than 12 and a constraint index of 1 to 12. The iron oxide is present in the composite as a powder, and may be created in situ by oxidation of iron powder. m e carbon monoxide may be a component of synthesis gas. The product naphtha is characterised by specific details of boiling range and composition.