baber/WOPTO huggingface dataset:
Patent CA-1257641-A (CA)
Inventor: TAARNING CLAUS E
IPC: B03C3/68
Filed: 1984-11-08
Granted: 1989-07-18
Abstract: FAST-ACTING SPARK-OVER DETECTOR.      ABSTRACT OF THE DISCLOSURE      A  spark-over  detector   for   an   electrostatic precipitator has a current sensor  (3)  which  provides a signal (a) which is differentiated twice  to  produce a signal (c).  If  the  level  of  the  signal  (c)  is above a  predetermined  level  then  a  level-detecting circuit (7) passes a signal (d)  to  an  AND-gate  (8). A second  level  detecting  circuit  (9)  receives  the signal  (a)   and   if   this   signal   is   above   a predetermined level passes the signal (e) to  a  timing circuit (10) which provides a signal (f) from  a  first preset  time  after  having  received  the  signal  (e) until a second preset time after  the  signal  (e)  has ceased.   Thus,  if  a  spark  over  starts  to   occur signals  (d)  and  (f)  occur simultaneously  and  the AND-gate produces an output signal  (g)  which  can  be used to trigger the thyristor  switch  circuit  of  the pulse generator  to  conduction  to  prevent  thyristor damage or destruction.
Patent CA-1217832-A (CA)
Inventor: ARNOLD HAMILTON W
IPC: H04M11/06
Filed: 1984-11-30
Granted: 1987-02-10
Abstract: A DIGITAL COMMUNICATION SYSTEM            Abstract The present invention relates to a transmitter and a receiver for use in a digital communication system which are  capable of transmitting and receiving, respectively, a single duplex analog signal channel, such as, for example, a voice channel, and limited short asynchronous data bursts.  The  transmitter portion includes an encoding means which uses an adaptive companding algorithm in the encoding process while the receiver portion includes a decoding means using the same synchronized algorithm in the decoding process.  The transmitter  and receiver at each end of a communication channel also include a signaling interface which can interrupt the coding and decoding process to transmit and receive, respectively, an occasional data burst without upsetting the synchronization of the adaptive companding algorithm states at both ends of the channel.
Patent CA-1255213-A (CA)
Inventor: ARNOLD LYLE J JR
IPC: G01N33/58
Filed: 1985-01-14
Granted: 1989-06-06
Abstract: ABSTRACT      A sensitive and specific assay method for luminescent detection of support matrix-bound reporter groups smaller than about 10,000 daltons in size is disclosed which comprises contacting such reporter groups with a detector complex which comprises a first component having a strong and specific affinity for such reporter groups, and a second component capable of being readily coupled to a bioluminescent or chemi-luminescent light emitting system, thereby to produce high affinity attachment of said detector complex to the immobilized reporter group.  The amount of bound detector complex is determined with a luminescence coupled reaction.  The light emitted is quantitated by means including a luminometer, light sensitive film, or light sensitive charge coupled device; and the amount of such light provides a measure of the reporter groups bound to the support matrix.  In one application, the assay method provides means for monitoring the inter-actions by which the reporter groups are immobilized.          Also disclosed are reagent means useful in practicing the method.
Patent CA-1220824-A (CA)
Inventor: MELVIN WAYMON A JR
IPC: H04B3/54
Filed: 1985-02-13
Granted: 1987-04-21
Abstract: 37                  50,939 ABSTRACT OF THE DISCLOSURE A time diversity carrier signal sampler utilizes a shift register in conjunction with a timer and a plural-ity of phase samplers.  The instantaneous logic level of each phase is measured on a time diversity basis in order to avoid the disadvantageous affects of noise pulses which can occur coincidently on all three phases. The resulting carrier signal data is then provided to a microprocessor for subsequent analysis and phase characteristic deter-minations.  By judiciously selecting the sample and clock frequencies of the shift register, the sampling frequency for each phase and the time between sampling each of the phases can be preselected.
Patent CA-1192779-A (CA)
Inventor: BOURGAULT FRANCOIS P
IPC: A01B63/22
Filed: 1985-02-15
Granted: 1985-09-03
Abstract: ABSTRACT OF THE DISCLOSURE         A farming implement is disclosed having a series of wheel subassemblies supporting a towed frame.  Each subassembly has a front wheel, preferably a castor wheel, and a rear wheel arrangement.  According to the invention, the rear wheel arrangement is secured to a trailing arm which is connected by a connecting rod with a front arm. The connecting rod, the pivot point of the rear and the front arms and the point at which the rear and the front wheels are secured to the respective arms form, in the preferred embodiment, identical right-angled triangles. The rear arm is operatively associated with a hydraulic cylinder for raising or lifting the trailing arm as the need arises.  The movement of the trailing arm is transmitted through the linkage to the front wheel whereby the frame of the implement is maintained at a generally horizontal position at all times.  The front and rear arms holding the respective wheels are interconnected with a connecting rod the length of which is selectively adjustable to compensate for any deviations from the horizontal level in the front-back direction.  The compensation in the sideways direction is taken care of by an adjustable mount of the hydraulic cylinders actuating the respective trailing arms.
Patent CA-1207523-A (CA)
Inventor: APPLEGATE ROBERT D
IPC: F24H1/00
Filed: 1985-02-15
Granted: 1986-07-15
Abstract: ABSTRACT OF THE DISCLOSURE       A method of drying grain is disclosed together with a grain drier system that includes a section in which ambient air is heated by an open flame and passed through the grain to accomplish drying and a section in which cool air is subsequently passed through the heated grain to cool it.  The method comprises col-lecting the cooling air after it has passed through the heated grain and become heated, passing the ambient air in a stream through the flame and introducing the collected, heated cooling air in a stream which is disposed on the periphery of the stream ambient air as it flows past the flame, thereby minimizing contact of the heated cooling air with the flame.
Patent CA-1224081-A (CA)
Inventor: FADNER THOMAS A
IPC: B41F27/10
Filed: 1985-03-06
Granted: 1987-07-14
Abstract: BLACK OXIDE LITHOGRAPHIC INK METERING ROLLER                 Abstract of the Disclosure An improved ink metering roller for lithographic printing comprised of a nitrided steel having an oxydized microporous outer surface consisting essentially of Fe304.
Patent CA-1251293-A (CA)
Inventor: BRAZELTON CARL L
IPC: G05D11/13
Filed: 1985-03-19
Granted: 1989-03-14
Abstract: Abstract of the Disclosure The system comprises at least one mixing and acti-vating apparatus having a water inlet, a polymer inlet and an outlet and constructed and arranged to dilute and fully activate a polymer.  The polymer feed system further comprises a conduit for carrying water to the water inlet of the mixing and activating apparatus.  A conduit is coupled between the outlet of the mixing and activating apparatus and the first conduit.  Activated polymer merges with the remainder of the water and is mixed in a static mixer.
Patent CA-1231401-A (CA)
Inventor: PERINETTI ALBERTO
IPC: H02G7/14
Filed: 1985-03-22
Granted: 1988-01-12
Abstract: ABSTRACT OF THE DISCLOSURE            The  invention relates to a vibration damper for suspended  cables,  particularly  or electric conductors  of overhead high voltage  lines,  comprising a messenger cable fixed by its central part to a clamp of connection to the conductor,  and  two  counterweights  fixed  to  the  messenger cable. Each of the counterweights is formed of a bar element, having a constant section throughout most of its length and being obtained by cutting to size a bar of indefinite length.
Patent CA-1226891-A (CA)
Inventor: FITZPATRICK BRIAN J
IPC: H01J29/89
Filed: 1985-04-11
Granted: 1987-09-15
Abstract: ABSTRACT:          Blue luminescent cathode ray tube device with improved color filtering system.           CRT device for generating a bright blue light spot employing a silver-activated zinc sulfide capable of emitting blue radiation when excited by electrons and in which device, there is positioned outside of the faceplate of the tube envelope of the CR tube and in the path of the blue radiation, a transparent light filtering means comprising a concentrated solution of a soluble erbium salt  and Methyl Violet 2B. Quite unexpectedly it is found that light emitted from the CRT device of this invention has drastically reduced radiation in the 440 - 450 nm region and the 470 - 540 nm region with practically no decrease in the desired radiation peak at 460 nm.
Patent CA-1246303-A (CA)
Inventor: SHAMIE LOUIS
IPC: A47D7/03
Filed: 1985-05-03
Granted: 1988-12-13
Abstract: MATTRESS SUPPORT FOR CRIB            ABSTRACT OF THE DISCLOSURE              A mattress support for a crib having a frame defining a space comprises four vertical brackets connected to four posts of the crib frame.  Each bracket has a plurality of vertically spaced open ended slots with open mouths of each slot facing toward a centerline of the crib.  A pair of beams which each have pins extending from their end are engaged with the vertical brackets so that at least one pin at one end of each beam is engaged in one slot of each bracket.  A cross member engages the beams to hold them apart and hold their pins in the appropriate slot.
Patent CA-1244914-A (CA)
Title: Control for liquid ring vacuum pumps
Inventor: BOHN HEINZ
IPC: F04C25/02
Filed: 1985-05-23
Granted: 1988-11-15
Abstract: A control system for liquid ring vacuum pumps is described. To minimize the consumption of fresh water by the pump(s) a temperature sensor is installed in the exhaust air pipe or separator of the pump(s) or in the water mains which is connected to the control unit and the switching valve in the fresh water pipe. Other sensors, such as pressure sensors and capacitance sensors may be incorporated in the system and, in addition to minimizing fresh water consumption, the suction pressure and maximum motor output power can be controlled and cavitation prevented.
Patent CA-1262826-A (CA)
Inventor: SAVARD GUY
IPC: B22D35/00
Filed: 1985-06-05
Granted: 1989-11-14
Abstract: "MOLTEN METAL CASTING"        ABSTRACT Molten steel, normally exposed to an atmosphere of air, is protected against pick-up of impurities by placing carbon dioxide gas in such quantities and in such proximity to the surface to cause dissociation of the carbon dioxide at a rate which furnishes an atmosphere of carbon monoxide and gives off a negligible amount of oxygen to the steel, thus providing à gas barrier or shroud isolating the steel from the surrounding atmosphere and preventing pick-up therefrom of oxygen, nitrogen or hydrogen.  This method may be applied to protecting steel being transferred from a ladle to a mold, or from a ladle to a tundish and from the tundish to a mold in continuous casting. In a method where a number of shrouding operations are carried out in series, carbon dioxide vapor, under pressure, is bled, in increments, from a storage vessel containing a body of liquid carbon dioxide in overlying ullage space containing vapor.  Each increment is superheated, after it leaves the vessel, and is ultimately expanded and dispersed at ambient temperature to form the shroud.  As each increment of vapor is removed from the vessel, it is replaced by withdrawing liquid carbon dioxide, vaporizing it and returning it to the ullage space.
Patent CA-1238934-A (CA)
Title: Sub-assembly for electric motor with stator terminal  connection means
Inventor: SECOURA RALPH A
IPC: H02K13/00
Filed: 1985-06-27
Granted: 1988-07-05
Abstract: ABSTRACT    A connection arrangement for coupling a brush bearing sub-assembly to the stator field windings in an electric motor.  The sub-assembly has a plate with a plurality of terminal blades ex-tending perpendicularly therefrom, the blades being arranged in staggered pairs of one long blade and one short blade.  The stator has corresponding pairs of connectors, staggered in accor-dance with the staggered terminal blades of the sub-assembly, with each connector including a resilient, omega-shaped conduc-tive element.  The corresponding staggered arrangement of the terminal blades and stator connectors provides for accurate cou-pling of the two, since the shape of the resilient connectors permits insertion from either a lateral or axial direction.
Patent CA-1243080-A (CA)
Inventor: CHUNG KAH-SENG
IPC: H04L27/12
Filed: 1985-07-18
Granted: 1988-10-11
Abstract: ABSTRACT: "Arrangement for generating an angle-modulated carrier signal of constant amplitude in response to data signals", An arrangement for generating an analog angle-modulated carrier signal of a substantially constant ampli-tude in response to data signals having a symbol rate 1/T comprises a read-only memory for storing modulation para-meters, an addressing circuit responsive to a predetermined number of consecutive data symbols for producing read addresses with a rate q/T, where q is an integer greater than 1, and a signal processor for processing read values to form the analog angle-modulated signal. An arrangement having a predominantly digital structure which does not utilize a DAC circuit as an interface between digital and analog sections of the signal processor is obtained in that the signal processor incorporates a zero-crossing generator comprising a delay circuit responsive to a numerical time-setting signal a set pulse having a presettable time delay of at most T/q, a gate circuit only responsive to a zero-crossing indication signal for transferring the set pulse to a bistable pulse generator, which produces a two-level signal whose level transitions only occur at the instants of the transferred setting pulses, and a bandpass filter having a centre frequency equal to the carrier frequency. These measures result in an arrangement which is capable of processing a wide range of data symbol rates 1/T and which is particularly suitable for monolithic integration.
Patent CA-1216462-A (CA)
Inventor: GROFF EDWIN T
IPC: A21C3/08
Filed: 1985-08-14
Granted: 1987-01-13
Abstract: FOOD PROCESSING APPARATUS               ABSTRACT OF THE DISCLOSURE         A food processing apparatus having an extrudate outlet nozzle, an extrudate receiver, the nozzle and receiver being movable to discharge extrudate in a preselected two dimensional line configuration on the receiver, and a programable controller for controlling the movement to achieve the configuration.
Patent CA-1260843-A (CA)
Inventor: KOCH ANDREW B
IPC: F01N5/04
Filed: 1985-08-21
Granted: 1989-09-26
Abstract: ABSTRACT OF THE DISCLOSURE       A drive shaft torque enhancer for internal combustion engines acting through drive shafts, including engine exhaust gas ducting directing the exhaust to impinge upon blades secured radially outstanding from the drive shaft, to impart torque thereto, said enhancer preferably including a housing about the exhaust impingement blades.  The torque enhancer is equally applicable to power systems of moving vehicles and stationary power applications.  For vehicles, provisions are made for diverting the exhaust gases into the engine's regular exhaust system, triggered by the action of the operator's foot upon the vehicle brake pedal.
Patent CA-1257042-A (CA)
Inventor: WATANABE HIROYUKI
IPC: C08F8/30
Filed: 1985-10-23
Granted: 1989-07-04
Abstract: ABSTRACT         A process for making a diene copolymer rubber having improved rebound, which comprises polymerizing a conjugated diene monomer with an aromatic vinyl monomer in a hydrocarbon solvent in the presence of an alkali metal and/or alkaline earth metal initiator, to form a dienyl-metal terminated, conjugated diene-aromatic vinyl copolymer rubber, and thereafter reacting the copolymer rubber with at least one reactant selected from the group consisting of aminoaldehydes, amino-ketones, aminothioaldehydes and aminothioketones.
Patent CA-1222384-A (CA)
Inventor: NETUPSKY BORIS FOUR BENTALL CE
IPC: E02D29/02
Filed: 1985-11-22
Granted: 1987-06-02
Abstract: RETAINING WALL STRUCTURE                ABSTRACT OF THE DISCLOSURE      A retaining wall constructed of the following components:      A plurality of toe elements, or a continuous toe element, located substantially in front of the retain-ing wall;     A plurality of heel elements, or a continuous heel element, located substantially within the backfill of the retaining wall;     A plurality of wall elements, or one wall element, spanning between vertical components of a structural assembly which is spaced at desired distances;     A plurality of structural assemblies, spaced at desired distances, comprising horizontal and vertical components and tie elements where required by struc-tural considerations, said structural assemblies being secured to the toe and heel elements, thus forming together with the said toe and heel elements and the wall elements, one integral retaining wall structure.      The invention differs from the prior art by the following features:      Location and spacing of the toe and heel elements, Saving of material and labour, Saving of excavation quantities, Reduction of lateral pressures against the wall in cases of a sloping backfill surface, Reduction of soil pressures at the toe.
Patent CA-1258321-A (CA)
Inventor: MATHIS GARY L
IPC: G01V5/06
Filed: 1985-12-17
Granted: 1989-08-08
Abstract: METHOD AND DEVICE FOR MEASURING GAMMA RADIATION            ABSTRACT         A  method  and  device  for  measuring  peak  gamma radiation is provided wherein the method includes the steps of determining a minimum and maximum number of counts within a preselected multiple channel energy spectrum measurement range, determining a channel having approximately one-half the  number  of  maximum  counts,  determining  a  channel representing a background energy, computing a peak energy centroid channel, computing a channel to energy conversion factor  and  recomputing  the  boundary  channels  for  the preselected  multiple  channel  energy  spectrum measurement range.  An apparatus for measuring gamma radiation is also provided  that  includes  a  device  for  detecting  gamma radiation emissions and producing an electrical signal of a magnitude  proportional to  the  level  of  energy  of  the emission connected to a converter that transmits a digital word containing the emission energy level  to a computer circuit that computes the number of emissions for specific energy  level  channels  within  a  first  set  of  channel boundaries and then calibrating new channel boundaries as a function of the number of emissions for the specific energy level channels within the first set of boundaries.
Patent CA-1257443-A (CA)
Inventor: DIETRICH MANFRED
IPC: C08G18/40
Filed: 1985-12-19
Granted: 1989-07-11
Abstract: STABLE DISPERSIONS OF POLYUREAS AND/OR POLYHYDRAZODI-CARBONAMIDES IN RELATIVELY HIGH MOLECULAR WEIGHT, HYDROXYL GROUP-CONTAINING COMPOUNDS, PROCESS FOR THE PRODUCTION THEREOF AND USE THEREOF FOR THE PRODUCTION           OF POLYURETHANES ABSTRACT OF THE DISCLOSURE The present invention is directed to a stable dispersion of a polyurea and/or a polyhydrazodicarbon-amide having a solids content of from 5 to 40%, by weight, in a relatively high molecular weight, hydroxyl group-containing polyether, obtained by continuously reacting:         (a)  an organic di- and/or polyisocyanate with (b)  an amine-functional material selected from the group consisting of (i) primary and/or secondary amino group-containing di- and/or polyamines, (ii) hydrazines, (iii) hydrazides and (iv) mixtures there-of in (c)  said polyether at an equivalent ratio of components (a) to (b) of from 1.051:1 to 1.50:1 in a throughflow mixer in such a quantity that the average residence time of the re-action components in the mixer is less than 10 minutes and collecting the reaction product issuing from the throughflow mixer in a receiver optionally with heating to from 50 to 150°C and optionally with subsequent stirring.  The invention also relates to the production and use of such dispersions.
Patent CA-1274070-A (CA)
Inventor: MARAZZI FILIPPO
IPC: B28B11/04
Filed: 1986-01-08
Granted: 1990-09-18
Abstract: ABSTRACT OF THE DISCLOSURE:            The process provides for the firing in a furnace of ceramic bodies and their coating in an incandescent state on one face with dry granular or powdered glaze when all firing reactions of the ceramic bodies have substantially reached completion; a subsequent thermal treatment fires the glaze and gradually cools the tile.   The apparatus for carrying out the process provides for a furnace for firing ceramic bodies,  the furnace being divided into two section between which is a device for distributing glaze over the ceramic bodies conveyed to pass through the furnace.
Patent CA-1235673-A (CA)
Title: Support pour poele, casseroles et couvercles
Inventor: RICHARD PIERRE
IPC: A47J47/16
Filed: 1986-02-17
Granted: 1988-04-26
Abstract: PRÉCIS Un système de rangement pour poêles, casseroles et couvercles dont les cavités intérieures du rail et les cavités extérieures des crochets correspondent ensemble pour permettre le coulissement et la retenue des crochets servant à suspendre. Le couvercle a une cavité correspondante à la cavité du rail lui permettant de s'ajuster à la forme du rail sous pression, celui-ci étant rétractable.
Patent CA-1252491-A (CA)
Inventor: LUGINBUEHL OTTO
IPC: B66D3/02
Filed: 1986-04-09
Granted: 1989-04-11
Abstract: A b s t r a c t Tackle mechanism The invention relates to a tackle mechanism for lifting and lowering loads, comprising one or more clamp jaw pairs disposed in a housing and having clamp jaws for a continuous cable, the clamp jaws being operable by way of clamp levers and comprising clamp jaw carriers for the clamp jaw pairs, and an actuating mechanism for the opening and closing movement of the clamp jaw pairs.          At least one of the two clamp jaws of each pair is mounted pivotally on a pivot disposed transversely of the cable direction.   This ensures uniform cable clamping with reduction of cable and clamp jaw wear.          (Fig. 1)
Patent CA-1269503-A (CA)
Inventor: KIISKILAE ERKKI J
IPC: B01D7/00
Filed: 1986-05-21
Granted: 1990-05-29
Abstract: ABSTRACT          A method of recovering alkali chemicals from a material containing sodium or potassium compounds.  The material is gasified by an external heat source after which the gas is rapidly cooled by arranging it to contact with cooled solid particles separated from the gas.
Patent CA-1260314-A (CA)
Inventor: LIVESAY RICHARD E
IPC: B21J13/03
Filed: 1986-06-23
Granted: 1989-09-26
Abstract: Abstract of the Disclosure Anvil Apparatus for A Press Conventional apparatus for pressing retaining rings into a track assembly do not properly line up with the retaining ring when the press is under the high pressure required.  The subject apparatus overcomes this problem by providing a self-aligning anvil for driving a tool.  The anvil has an adapter for mounting it to the press and an anvil member with a work surface for engaging the tool.  The adapter engages the anvil member along a semi-spherical mating surface having a radius extending from the intersection of the centerline of the anvil and a plane extending through a tool land of the tool where it engages the workpiece.  The anvil member is attached to the adapter by a pin attached to the anvil member which extends across the semi-spherical mating surface into a resilient member mounted in the adapter at its center.