baber/WOPTO huggingface dataset:
Patent CA-1071871-A (CA)
Inventor: REIJONEN VELI E
IPC: E21B43/22
Filed: 1975-06-27
Granted: 1980-02-19
Abstract: ABSTRACT OF THE DISCLOSURE:        The invention is concerned with a method for the continuous separation and recovery of marsh gas from bog mud, which comprises conducting the bog mud from a depth having a hydrostatic pressure of several atmospheres into a space having subatmospheric pressure to separate the gas from the mud, recovering the gas thus separated, conducting the mud from the separating space back to the bog while adding thereto a nutrient substance selected from the group consisting of phosphorous, potassium and nitrogen fertilizers and a trace element substance selected from the group consisting of iron, manganese, magnesium, calcium, nickel, cobalt, copper, zinc and molybdenum and adjust-ing the pH value of the mud in the range from 5 to 8.  This cyclic process exploits the considerable difference between the hydrostatic pressure in the bog and the subatmospheric pressure in the separating space together with the capacity of the bog to produce marsh gas, which is further promoted by the addition of various substances to adjust the conditions favorable for digestion.
Patent CA-1055950-A (CA)
Inventor: KAMIYA TAKASHI
IPC: C07D207/16
Filed: 1975-08-27
Granted: 1979-06-05
Abstract: ABSTRACT OF THE DISCLOSURE       A process and novel carbonic acid esters are provided for the protection of amino and imino groups in an amino and imino group-containing compounds; the process comprises reacting an amino or imino group-containing compound with a carbonic acid ester of the formula:   wherein R1 is lower alkyl which may have substituents selected from the group of halogen, lower alkoxy and aryloxy, or ar(lower)-alkyl which may be unsubstituted or substituted with one or more of lower alkoxy, halogen, nitro and cyano, and R2 is benzotriazolyl which may have halogen; or a group represented by the formula:      wherein Y and Z are each an electron withdrawing group.
Patent CA-1048140-A (CA)
Inventor: LAVERY LAWRENCE P
IPC: G06K9/38
Filed: 1975-10-24
Granted: 1979-02-06
Abstract: AMPLIFIER BACKGROUND CONTROL APPARATUS FOR USE IN               A DOCUMENT SCANNING SYSTEM                 ABSTRACT OF THE DISCLOSURE         An arrangement for use in a document scanning system to provide background control of signals representative of the information content of a scanned document.  An amplifier includes an automatic background control portion and an automatic black level adjustment portion to maintain the integrity of the output voltage range independent of the background of the scanned docu-ment and throughout the period of time required to scan the entire document.  In addition, circuitry is provided for varying the time constant of the automatic background control circuitry to make that circuitry respond quickly to changes of the back-ground toward the "white" direction.  Further, the normally white platen back at the scanning station is provided with a gray leading edge to prevent the automatic background control circuitry from being upset by initial runs of white in the event of an imperfectly registered non-white document.
Patent CA-1051308-A (CA)
Inventor: DECOURSEY LEONARD T
IPC: A24B3/12
Filed: 1975-11-12
Granted: 1979-03-27
Abstract: A B S T R A C T           An apparatus and method for moistening tobacco in which the non-condensibles in a mass of dry, compressed tobacco are substantially entirely eliminated by subjection to a very low absolute pressure, preferably below 1 in. Hg, followed by a first steaming to a pre-determined temperature under the influence of a maximum pressure differential, holding, re-evacuation, during which a loosening occurs, and a final steaming.
Patent CA-1046735-A (CA)
Inventor: KANZAKA YOSHIHIRO
IPC: G05D23/19
Filed: 1975-12-23
Granted: 1979-01-23
Abstract: ABSTRACT OF THE DISCLOSURE      A slide fastener having at its top end a slider escape mechanism which comprises a cooperative pair of yieldable top stops, and an extra length of fastener elements carried on one of the stringer tapes, such that the slider can be forced past the yieldable top stops to ride onto the extra fastener elements in an emergency and hence to release the other stringer tape.  To permit ready withdrawal of the said other stringer tape from the slider, a reinforcing sheet of thermo-plastic material or the like is heat-sealed or otherwise attached to it's upper end portion, from which at least the bead of the tape is removed.  The fastener can be forced open from its top end without pulling the slider down along the rows of interlocking fastener elements.
Patent CA-1045564-A (CA)
Inventor: SMITH JOHN L
IPC: B01D53/26
Filed: 1976-01-16
Granted: 1979-01-02
Abstract: ABSTRACT OF THE DISCLOSURE           A fluid valve apparatus particularly for pneumatic service (air or other gases) in a filter/separator for opening and closing a valve in response to the level of liquid in a container.  The apparatus includes a valve having a mag-netically attractable portion and a float having a magnet therein adjacent but physically separated from the valve for opening and closing the valve magnetically in response to changes in the liquid level within the container.  In the preferred embodiment, the valve apparatus is used with a filter/separator in an air pressure supply line to auto-matically dump water and other liquids condensed from the air supply and collected in the filter reservoir.
Patent CA-1044380-A (CA)
Inventor: LUBECKI ANDRZEJ
IPC: G01N23/02
Filed: 1976-01-30
Granted: 1978-12-12
Abstract: Abstract of the Disclosure The present invention relates to a measuring system for a drill-hole probe using a non-dispersive X-ray fluorescence with radiation collimat-ing for element analysis.  The system has a source of radiation, a detector for the X-ray fluorescence radiation and/or the Compton secondary radiation and a shield for the detector against direct radiation from the source.  The source, the shield and the detector are arranged in a manner such that they can be surrounded, in cylindrical symmetry by the material adapted to be excited to X-ray fluorescence by the radiation issuing from the source.  The distance between the source and the detector the source and the shield and the shield and the detector are all variably adjustable.
Patent CA-1060923-A (CA)
Inventor: PERKOWSKI ALFRED D
IPC: C03B35/20
Filed: 1976-03-08
Granted: 1979-08-21
Abstract: SUPPORTING GLASS SHEETS                 Abstract of the Disclosure In the art of supporting a glass sheet by self-closing metal tongs during the thermal treatment of the glass sheet, wherein the glass sheet is gripped between opposing glass gripping members of said self-closing tongs, the improve-ment comprising engaging said glass sheet surfaces with glass engaging members composed of a tungsten nickel composite essentially free of cobalt and iron during the thermal treat-ment.
Patent CA-1069585-A (CA)
Inventor: SUZUKI TOMOAKI
IPC: G01R33/07
Filed: 1976-04-06
Granted: 1980-01-08
Abstract: APPARATUS FOR DETERMINING A MAGNETIC FIELD     ABSTRACT     A magnetic field is determined with a Hall element having a high sensitivity.  Such an element is very susceptible to a variation of environmental temperature and thus requires a compensation thereof for the determination of a magnetic field.  Two electric signals indicative of the magnitudes of the Hall voltage and the temperature, respectively, are produced and fed into respective inputs of an analog calcul-ator to thereby indicate the determined magnitude of magnetic field automatically.  In one aspect of the invention, the temperature signal may be obtained by detecting a control voltage across the control current terminals of the Hall element during passage of the control current therethrough.       Alternatively, it may be obtained by means of a thermistor.
Patent CA-1065597-A (CA)
Inventor: GROSSO DONALD S
IPC: E21B47/022
Filed: 1976-05-10
Granted: 1979-11-06
Abstract: A borehole sensor is presented including a three axis gimbal device for determining (1) a vertical plane, using the force of gravity as a reference, (2) a horizontal plane, using the force of gravity as a reference, and (3) the north direction, using the earth's magnetic field as a reference. A motor drive system drives parts of the mechanism to desired positions about the three axes, and error transducers deter-mine the deviation from desired positions about the axes and provide feedback to the motor drive system to eliminate the error.
Patent CA-1048401-A (CA)
Inventor: HELM HERBERT W
IPC: B31B50/83
Filed: 1976-06-07
Granted: 1979-02-13
Abstract: TITLE             ROTARY PANEL CUTTER FOR CUTTING       OPENINGS IN A WEB             ABSTRACT OF THE DISCLOSURE         The rotary panel cutter includes a cutter die that has a continuous upstanding knife blade.  The cutter die has a body portion that is secured to a rotatable cutter shaft having a longitudinal axis.  The cutter die knife blade has side edge portions that are perpendicular to the longitudinal axis  of the cutter shaft and leading and trailing edge portions that are not parallel to the longitudinal axis of the cutter shaft.  For cutting rectangular openings in a web the continuous  upstanding knife blade has the configuration of a regular parallelogram where-in the length of side edges is the same and the length of the leading and trailing edges is also the same. The rotatable cutter shaft is mounted in a machine frame with its longitudinal axis at an angle other than 90° with the center line of the web.          The angle that the rotatable cutter shaft deviates from 90° is preferably the  same angle as the angle of deviation of the knife leading and trailing edges from the longitudinal axis of the cutter shaft.  An anvil backing device, such as a rotatable anvil, is positioned adjacent to the rotatable cutter shaft and has an outer surface spaced from the rotary cutter die an amount slightly  less than the thickness of the web material being cut.  The longitudinal axis of the anvil is parallel to the longitudinal axis of the rotatable cutter shaft.  A suitable conveying device, such as pull rolls, pull the web through the panel cutter between the cutter shaft and anvil and rotation of the rotatable panel cutter shaft cuts openings, such as windows, in the web.
Patent CA-1058965-A (CA)
Inventor: LEHMANN WILFRIED
IPC: F04D29/043
Filed: 1976-06-29
Granted: 1979-07-24
Abstract: ABSTRACT OF THE DISCLOSURE A rotary pump assembly including a pump having a pump housing, a pump shaft disposed within the pump housing, a runner mounted concentrically on the pump shaft, a motor having a motor housing, and an intermediate housing interconnected between the pump-and motor housings.  The pump shaft has an end facing the motor, and the pump shaft end is formed as a hollow shaft fittingly mounted on the motor shaft.  A bearing support is disposed in the intermediate housing for supporting the pump shaft  end, and is exclusively formed as an axial bearing.
Patent CA-1069625-A (CA)
Inventor: SAWICKI JOHN E
IPC: C02F1/00
Filed: 1976-07-13
Granted: 1980-01-08
Abstract: Abstract of the Disclosure A method of reducing foaming of a liquid containing dissolved carbon dioxide during filtering.  The carbonated liquid to be filtered is adjusted in pH to a value of 6.5 to 8.0 by the addition of an alkaline material which reacts with the dissolved carbon dioxide to remove the carbon dioxide from solution.  The elimination of the dissolved carbon dioxide results in decreasing foaming during filtering and substantially increases the rate of filtration.
Patent CA-1078623-A (CA)
Inventor: JACKMAN JOSEPH R
IPC: C21C7/00
Filed: 1976-07-22
Granted: 1980-06-03
Abstract: ABSTRACT A method, apparatus and alloy for adding mischmetal-to molten steel by filling a metal canister with a mischmetal-magnesium alloy in the range 1% to 2.5% magnesium, plunging the metal canister beneath the surface of the steel bath being treated and holding the canister submerged in the bath until the mischmetal has dissolved.
Patent CA-1053049-A (CA)
Inventor: AHREL BO
IPC: B02C7/12
Filed: 1976-08-11
Granted: 1979-04-24
Abstract: ABSTRACT OF THE DISCLOSURE A grinding apparatus for producing ligno-cellulose pulp, in which the pulp material, such as wood chips or bagasse, is ground in an environment of steam between a rotating grinding disc and a non-rotating grinding disc enclosed within a housing. Each disc comprises a series of peripherally disposed, radially extending segments provided with ridges and intervening grooves forming opposing grinding surfaces and defining therebetween a grinding space of predetermined width which merges with a central feed-in zone from which the pulp material is propelled by centri-fugal force created by the rotating disc, radially outwards through the grinding space.  The rotating disc is shaped so as to cause the centrifugal force to fling the pulp material towards the nonrotating disc to thereby create passage means adjacent the surface of the rotating disc through which the steam escapes from the grinding space substantially free of pulp material, the radially outward movement of which is retarded by the non rotating disc with resultant improved grinding effect.
Patent CA-1059637-A (CA)
Title: Apparatus for cross-array correlation and compression coding between two-dimensional matrices derived from two-valued picture points
Inventor: ARPS RONALD B
IPC: H03M7/00
Filed: 1976-09-27
Granted: 1979-07-31
Abstract: ABSTRACT      An apparatus is disclosed for compressing a p x q image array of two-valued (black/white) sample points.  The image array points are serially applied to the apparatus in consecutive raster scan lines.  In response, the apparatus simultaneously forms two matrices respectively representing a high order p x q predictive error array and a p x q array of location events (such as the raster leading edges of all objects in the image). Improved compression is achieved by selecting between the more compression efficient of two methods for encoding the position of errors in the prediction error array.  This alternative methods are conventional run-length coding and a novel form of reference encoding, used selectively but to significant advantage.  Thus, a run-length compression codeword is formed from the count C of non-errors between consecutive errors (in response to the occurrence of each error in the jth bit position of the ith scan line of the predictive error array) upon either C?T, where T is a threshold, or C>T and there being no occurrence of a line difference encoding for the error (where i, j, C and T  have positive integers).  A line difference codeword with difference value v is generated upon the joint event of C>T and either the single or multiple occurrence of location events in the ith-1 scan line of the location event array within the bit position range of B?r?(j+n), where positive integer B is the greater of function D(T,v) and (j-n), and the number of intervening location events, s, within the bit positioned range of D(T,v)?q<(j-n) not exceeding some limit m (where m, n, q, r and s are positive integers).  By adding the referencing codewords to a conventional run-length code word set, the compression code word relative frequency distribution is improved at only a small increase in alphabet size.  The improvement causes more peak-ing of the relative frequency vs. codeword size distribution with a resulting lower entropy per codeword.  This novel extension of reference encoding (using cross-array encoding to a location event array) permits this optimization for lower entropy per codeword independent of the use of high-order prediction to simultaneously reduce the number of codewords.  These two improvements in combination result in improved compression over the prior art.
Patent CA-1068963-A (CA)
Inventor: AUGUSTIN ROLF M JR
IPC: G03B17/52
Filed: 1976-09-30
Granted: 1980-01-01
Abstract: ABSTRACT OF THE DISCLOSURE     This invention relates to a camera back for selective releasable attachment to a front camera body comprising two generally flat housings in end to end pivotal connection with respect to each other wherein the first of the housings is adapted to slidably accept a plurality of stacked film units of the self-developing type therein in a manner whereby the photosensitive surface of the forwardmost film unit is positioned at an exposure window corresponding with the focal plane of the front camera body when the camera back is releas-ably attached to the front camera body.  The second housing defines an imbibing chamber for receipt therein of exposed film units in a light tight environment.  One open end of the imbibing chamber includes a pair of processing rollers there-across in operative association with other film advancing mechanisms which sequentially advance exposed film units from their position at the exposure window of the first housing into the imbibing chamber of the second housing.  Automatic drive means are provided by a motor conveniently spaced in a portion of the first housing spaced laterally apart from the processing rollers in noninterfering relationship with the path of advancement of the exposed film units through the processing rollers into the imbibing chamber.  In addition, there may be provided an adapter in releasable, light tight connection with respect to the camera back and extending above at least a part of the motor housing portion to accommodate releasable, light tight connection to the front camera body, such that the exposure window of the camera back aligns in substantial coincidence with respect to the focal plane of the front camera body.
Patent CA-1061964-A (CA)
Inventor: TALENTO JOSEPH L
IPC: H01H1/06
Filed: 1976-10-13
Granted: 1979-09-11
Abstract: ABSTRACT OF THE DISCLOSURE             A brazed joint between a beryllium-base part and a copper-base part comprises a first layer of brazing material in contact with the beryllium-base part.  This brazing material is an alloy that just prior to brazing consists essentially of silver and a minor constituent of either:  (a) tin in a percentage of 4% it 15% by weight of the alloy, (b) silicon in a percentage of 1% to 5% by weight of the alloy. or (c) indium in a percentage of 6% to 25% by weight of the alloy.  Contacting this first layer and brazed thereto is a second layer of a material that just prior to brazing consists essentially of silver. Between the second layer and the copper-base part, there is another brazed conn-ection, which is formed at temperatures exceeding 600°C.
Patent CA-1076837-A (CA)
Inventor: BOEHME DETLEF R
IPC: F04B13/02
Filed: 1976-11-04
Granted: 1980-05-06
Abstract: PATENT APPLICATION                            Of DETLEF R. BOEHME, KENNETH C. JUDAH and MINER N. MUNK                           For LIQUID CHROMATOGRAPHY SYSTEM WITH      SOLVENT PROPORTIONING     Abstract of Disclosure A liquid chromatography system including a liquid chromatography column, first and second reservoirs for solvents to be utilized as the mobile phase, reciprocating pumping means for flowing the solvents through the column, and motor means for driving the pump through successive pumping cycles including pump and fill subcycles.  First and second solenoid-actuated proportioning valves are positioned at the low pressure side of the pump, i.e. between the first and second reservoirs and the pump inlet.  Gradient setting means are provided for setting a preselected solvent proportion to be used over a time period. Means responsive to the gradient setting opens one of the said proportioning valves during a predetermined portion of the fill subcycle.  The valves are actuated in complementary fashion with respect to opening and closing; hence the fill subcycle is divided between flow proceeding from the first and second valves in accordance with the gradient setting.
Patent CA-1049645-A (CA)
Inventor: FREEMAN ARTHUR W
IPC: G01S15/96
Filed: 1976-11-23
Granted: 1979-02-27
Abstract: ACCENTUATOR CIRCUIT FOR UNDERWATER ACOUSTICAL DEVICES                 Abstract of the Disclosure An accentuator circuit for underwater acoustical devices having a transmitter circuit and a receiver circuit each connected to underwater unit means which interchanges electrical signals and acoustical wave fronts in the water.  The receiver circuit provides receiver outputs in accordance with distances traversed by the reflected wave fronts.  The wave fronts reflecting from the bottom of the body of water produce a series of receiver outputs within an interval of time resulting in a bottom smear in the display in the prior art units.  The invention includes an accentuator circuit connected to the receiver output comprising a series connected diode which substantially eliminates the bottom smear encountered by the prior art units enabling the resolution of an object which occurs within the aforesaid bottom smear.  Consequently, objects such as fish which are located in close proximity to the bottom of the body of water can be readily detected.
Patent CA-1066359-A (CA)
Inventor: PFARRER DAVID M
IPC: H02P1/44
Filed: 1977-01-12
Granted: 1979-11-13
Abstract: ABSTRACT OF THE DISCLOSURE      A motor control circuit for a single-phase two-speed five-lead motor which includes main windings, high speed start windings, and low speed start windings.  The circuit includes a high speed contractor, a low speed contractor, a start capacitor mechanism, a run capacitor and a start relay.  The start capacitor mechanism includes a first start capacitor and a second start capacitor in parallel therewith.  The start relay includes a start relay coil and a normally closed contact that is disposed between the start windings and the start capacitors.  During the high speed mode of operation, both start capacitors are in the circuit until the start relay contact is opened.  During the low speed mode of operation, only one start capacitor is in the circuit until the start relay contact is opened.  By means of the improved motor control circuit, only a single start relay is needed to control operation of the single-phase two-speed five-lead motor.
Patent CA-1045434-A (CA)
Inventor: PAAKKINEN ILMARI
IPC: B02C7/06
Filed: 1977-04-14
Granted: 1979-01-02
Abstract: ABSTRACT OF THE DISCLOSURE     A disk refiner construction to be supported on a base and including first and second frame parts, said first frame part having inside a pressure proof housing attached at its peri-phery to said first frame part, a shaft extening into said housing and provided with a gasketing sleeve serving as a gasket for said housing, a disk attached to the end of said shaft and provided with refiner plates within the housing, and an end plate of the refiner being attached to the first frame part and provided with stationary counter plates for said refiner plates, the second frame part having inside a bearing unit for the shaft of the refiner and said first and second frame parts constituting together an uniterrupted frame having the shape of a hollow rotational body and serving as a guide and support for the shaft and its bearings, said body being further provided with fixation points positioned symmetri-cally in relation to the shaft for supporting the disk refiner on its base.
Patent CA-1056773-A (CA)
Inventor: GREGG EDMUND
IPC: B66F17/00
Filed: 1977-05-09
Granted: 1979-06-19
Abstract: ABSTRACT OF THE DISCLOSURE         An improved load moment sensing system for a lift truck having tilt and lift cylinders for tilting a mast and lifting a carriage on the mast, respectively.  A sensor is provided for sensing the load moment placed on the frame and a sensor is provided for determining when the carriage is elevated on the mast.  A logic system is responsive to the sensors for preventing actuation of the tilt and lift cylinders simultaneously when an overload is sensed while allowing rearward tilting only when an overload has been sensed and when the carriage is elevated.  The system also prevents tilting forwardly when an overload has been sensed and when the carriage is elevated.  The system also allows tilting forwardly when an overload has been sensed and the carriage is not elevated.