baber/WOPTO huggingface dataset:
Patent CA-1117822-A (CA)
Inventor: KEMPER JAMES M
IPC: B61F5/12
Filed: 1980-05-13
Granted: 1982-02-09
Abstract: EJB:kjc    6/15/79 IMPROVED RAILWAY TRUCK FRICTION SHOE     Abstract of the Disclosure An improved railway truck friction shoe is provided.       The contact point of the shoe slope face with the bolster and the spring center line of the shoe are substantially coincident; the contact point is substantially equidistant from the top and bottom edges of the shoe column face.  The convex sloped surface of the shoe has a reduced crown radius, and the verti-cal face of the shoe has an increased length.  The shoe is designed to provide a more even distribution of contact pres-sures across its column face.  This results in a longer wear life for the shoe by providing for more uniform wear.
Patent CA-1138953-A (CA)
Inventor: RODRIAN JAMES A
IPC: G08B26/00
Filed: 1980-07-03
Granted: 1983-01-04
Abstract: ANIMAL IDENTIFICATION AND  ESTRUS DETECTION SYSTEM            Abstract of the Disclosure An animal such as a dairy cow carries a trans-ponder unit which includes a motion sensor.  When the animal comes within range of a transceiver unit, it is interrogated and the transponder unit transmits data which identifies the animal and indicates the number of movements of the animal.  The number of animal move-ments increase dramatically during estrus and a record is kept on each animal to determine when this cccurs.          Data received at the transceiver is processed by a microprocessor based system which operates to insure the received data is correct.  It also assembles the data and outputs it to a printer.
Patent CA-1125129-A (CA)
Inventor: VAN DER PLAAT WILLEM
IPC: F24B1/192
Filed: 1980-07-08
Granted: 1982-06-08
Abstract: ABSTRACT OF THE DISCLOSURE           A stove, especially for burning wood, the stove to be located in an existing fireplace opening, comprises a combustion trough and a combustion draft passage whereby the fire receives combustion draft directed only into its hottest part for efficient burning.  Means are provided to recirculate cool air from the environment to be heated around the combustion zone to absorb heat therefrom and when warmed back into the environment.  Heat exchange means are provided to additionally warm recirculating air by absorption of heat from venting flue gases.  Doors to the stove are provided with means to deflect a curtain of air therebehind to minimize creosote deposition.  Frame assembly means are provided comprising structural members to band around the stove and frame members for abutment against the fireplace fixed thereto, whereby the frame and stove assembly fits a large variety of fireplaces.
Patent CA-1140995-A (CA)
Inventor: SCHNEIDER URBAN A
IPC: B23K9/29
Filed: 1980-09-09
Granted: 1983-02-08
Abstract: 11                  48,305 ABSTRACT OF THE DISCLOSURE     A gas tungsten arc welding torch having an elon-gated gas nozzle  (18) with an oblong cross section de-signed for deep groove, narrow gap welding.  The nozzle is rotatable  coupled  to  and  communicates  with  a gas port within the main torch body (16) and defines a gas passage along  the  length  of  the welding  electrode  (10), which extends through the longitudinal axis of the nozzle. The nozzle (18) includes a detachable end section (42) which captures and supports a replaceable gas lens (30) disposed within the gas passage of the nozzle within 7/8 to 1 inch from the nozzle orifice (40), and traverse to the direc-tion of gas  flow.   The electrode (10) is formed from a solid  tungsten  rod  center  (12)  and  a concentric outer sleeve (14) substantially lower in electrical resistivity than the tungsten rod, which is adhesively and cohesively bonded to the tungsten.  The outer sleeve extends from the point of electrical connection (32) within the main torch body (16) to a point on the tungsten electrode downstream of the gas lens.  The nozzle is sealably mounted (38) to the main torch body and readily detachable for easy re-placement.
Patent CA-1160978-A (CA)
Inventor: KANO MASAYOSHI
IPC: F23K1/02
Filed: 1980-09-22
Granted: 1984-01-24
Abstract: TITLE OF THE INVENTION METHOD OF TRANSPORTING COAL AND SHIPS      FOR TRANSPORTING COAL SLURRIES                 ABSTRACT OF THE DISCLOSURE A method of transporting coal in which coal sent forward in the form of a slurry is classified in accordance with the particle size of the coal, and the coal slurry other than a fraction thereof containing the fine particles not larger than a specified size is transported by a ship.
Patent CA-1154534-A (CA)
Inventor: BELL ALAN E
IPC: G11C13/04
Filed: 1980-10-10
Granted: 1983-09-27
Abstract: RCA 72,990 REPLICABLE OPTICAL RECORDING MEDIUM     Abstract of the Disclosure An optical recording medium which comprises a light reflective layer, a light transmissive layer and a light absorptive layer where material comprising the light transmissive layer has a melting, sublimation or decomposition temperature at least 300°C less than that of the material comprising the absorptive layer. Information is recorded as openings in both the light transmissive and absorptive layers or as bubbles in the absorptive layer.  These storage mechanisms produce topographical features which are suitable for replication, thus allowing direct replication of the recorded information.
Patent CA-1148469-A (CA)
Inventor: LUEDDERS WILMER L
IPC: A61K47/10
Filed: 1980-10-10
Granted: 1983-06-21
Abstract: ABSTRACT       Compositions for topical application of erythromycin and derivatives of erythromycin, com-prising an erythromycin compound and diisopropyl sebacate, are especially useful as a treatment for acne.
Patent CA-1154075-A (CA)
Title: Instant-on light source
Inventor: REGAN ROBERT J
IPC: H05B41/46
Filed: 1980-11-28
Granted: 1983-09-20
Abstract: 22,378 Abstract of the Disclosure A light source includes a high pressure discharge lamp and incandescent filaments which provide illumina-tion during the warm-up and hot restart periods asso-ciated with the discharge lamp.  A current regulator, which provides dc power to the discharge lamp, draws sufficient current through one filament to energize the filament only during discharge lamp warm-up.  A second filament provides illumination during the period after the occurrence of a momentary power failure or power transient which is required by the discharge lamp to cool down to its maximum starting temperature.  A bi-metal switch permits current flow through the second filament when the discharge lamp is above the maximum starting temperature.  An electronic switch permits current flow through the second filament when a current sensing resistor senses a lack of current through the discharge lamp.
Patent CA-1171782-A (CA)
Inventor: O'DOHERTY GEORGE O P
IPC: A23K20/195
Filed: 1980-12-22
Granted: 1984-07-31
Abstract: Abstract The present invention is directed to novel anticoccidial compositions and methods of employing the same to control coccidiosis in poultry.  These compositions comprise a polyether antibiotic and a second component which is a selected carbanilide.
Patent CA-1161548-A (CA)
Title: Signal pick-up circuit
Inventor: YAMANAKA SEISUKE
IPC: H04N5/335
Filed: 1981-02-05
Granted: 1984-01-31
Abstract: ABSTRACT OF THE DISCLOSURE              A signal pick-up circuit is disclosed which has the base on the fact that the noise level in an output from an image picking-up device is constant during one bit interval and no signal component exists during pre-charge period or interval thereof and eliminates the noise upon the pre-charge operation by using the difference between the levels of the output during the pre-charge and signal level intervals.     The signal pick-up circuit includes an image picking-up device having a charge transfer element and pro-ducing an output charge corresponding to an object to be picked up, a circuit for receiving the output charge from the image pick-up device and producing a charge detecting signal including a reference level portion and a signal por-tion provided by charge or discharge in response to the output charge, the reference level portion and the signal portion being repeated at every one bit of the ouput charge, and a circuit for providing difference output between the reference level portion and the signal portion.
Patent CA-1184506-A (CA)
Title: Method and system for discriminating human voice  signal
Inventor: KOMATSU AKIRA
IPC: G10L25/78
Filed: 1981-04-16
Granted: 1985-03-26
Abstract: ABSTRACT   The human voice is discriminated from other sounds in an audio signal by first recognizing that the human voice includes a fundamental frequency saw-tooth wave in the low bass region.  Sounds in this region are also important for effects where body felt vibrations are to be transmitted direct to a listener or appreciator of the sound.  The gain of an amplifier for using such sound effects is controlled in accordance with frequencies in the audio spectrum below that containing appreciable human voice frequency components.  Apparatus detects the level of the total audio signal and subtracts the output of a human voice detector circuit, to provide the control for the amplifier.  Human voice detector circuits exploit the fact that the human voice signal can be regarded as an amplitude modulated carrier wave.  Sound effect frequencies in the range below that containing substantial frequency components of the human voice may be added to the detected total signal level from which the output of the human voice detector is subtracted before application to the amplifier.
Patent CA-1166253-A (CA)
Inventor: LESHER GEORGE Y
IPC: A61K31/50
Filed: 1981-04-27
Granted: 1984-04-24
Abstract: D.N. 3698 ABSTRACT OF THE DISCLOSURE 4-Amino-2-R-6-PY-3(2H)-pyridazinones (I) or salts thereof, which are useful as caraiotonics, where R is hydrogen, lower-alkyl or lower-hydroxyalkyl, and PY is 4- or 3-pyridinyl or 4- or 3-pyridinyl having one or two lower-alkyl substituents are prepared by:  a) reaction of 2-R-6-PY-3(2H)-pyridazinone (II) with hydrazine; b) conversion from 2,3-dihydro-2-R-3-oxo-6-PY-4-pyridazinecarboxamide (III); or, c) conversion form 2,3-dihydro-2-R-3-oxo-6-PY-4-pyridazinecarboxylic acid hydrazide (IV).  Also shown are. the use of I or salts as cardiotonic agents; and, the preparation of intermediates.
Patent CA-1177309-A (CA)
Title: Shelf-stable high moisture pet food
Inventor: FRIEDMAN HERMAN H
IPC: A23K1/18
Filed: 1981-05-20
Granted: 1984-11-06
Abstract: SHELF-STABLE HIGH-MOISTURE PET FOOD ABSTRACT The object of the invention is to provide a palatable, high-moisture pet food which is reliably stable against microbial attack without need to resort to pasteurization. This objective has long been sought by the art and is now met by the pet food provided by the invention which is a nutritionally-balanced pet food comprising protein, fat, carbohydrates, vitamins and minerals, has a moisture content within the range of from 50 to 80%, exhibits a water activity of at least 0,90, and further comprises on a total weight basis from 4% to 15% fructose; from 0.3% to 3.0% of an edible organic acid and sufficient inorganic acid to maintain the pH of the product within the range of from 3,5 to 5.8; and an antimycotic in an amount which is effective to prevent mold growth wherein the preservation system is bactericidal. According to a preferred embodiment the binders comprises cargeenan and the organic acid is selected from the group consisting of heptanoic, octonoic, nonanoic and combination of these.
Patent CA-1166712-A (CA)
Inventor: MATYAS STEPHEN M
IPC: H04L9/00
Filed: 1981-06-22
Granted: 1984-05-01
Abstract: CRYPTOGRAPHIC SYSTEM USING MULTIPLE ENCIPHERMENT     ABSTRACT      Multiple encipherment under the DES algorithm is performed in three steps as an encipher/ decipher/ encipher sequence that gives the increased security of a longer key.  The steps each use one of two keys of conventional length.  When the two keys are the same, the operation is identical to a single encipherment under one key, and input quantities thus enciphered can be sent to a cryptographic facility that has only a single encipherment capability.  The invention maintains compatability between users of multiple encipherment devices and users of single encipherment devices.  The invention is particularly useful for enciphering keys and a detailed method and apparatus for this application is described.
Patent CA-1162838-A (CA)
Inventor: IRITANI KOJI
IPC: F23D5/04
Filed: 1981-08-11
Granted: 1984-02-28
Abstract: ABSTRACT OF THE DISCLOSURE         The invention provides a vaporizing type liquid fuel combustion apparatus comprising a pot burner, a vaporizer serv-ing to vaporize liquid fuel and provided above the pot burner, a fuel supply pipe for supplying liquid fuel to the vaporizer, a vaporized gas combustion burner having a gas chamber communi-cating with the vaporizer and which is arranged to heat the vaporizer, and a blower for supplying air to the pot burner and the vaporized gas combustion burner.
Patent CA-1189694-A (CA)
Inventor: MELVOLD ROBERT W
IPC: B63B43/16
Filed: 1981-09-09
Granted: 1985-07-02
Abstract: Abstract of the Disclosure A system for plugging holes in vessels which comprises the combination of a storage and delivery system for a foam-forming material, and a hole-plugging assembly.  The hole-plugging assembly includes a flexible nonelastic bag member which is inserted in a folded position into the hole to be plugged and properly positioned with an associated locating means.  Thereafter, a unitary foamable material is injected into the bag member to expand it and seal the hole.  The locating means further assists in maintaining the inflated bag member in proper orientation and sealing engagement while the foam is curing.
Patent CA-1172217-A (CA)
Inventor: PAOLI BRUNO
IPC: B65B51/00
Filed: 1981-09-15
Granted: 1984-08-07
Abstract: ABSTRACT           A finishing device for treating and positioning flaps of containers which include (the usual) four triangular flaps.  The device includes a longitudinal throughway or track provided with longitudinal flap-bending strips.  After traversing the flap -bending portion of a track the containers are subject to a heat treatment which fixes the flaps to the desired surfaces of the containers.
Patent CA-1172106-A (CA)
Inventor: STEPHAN ROBERT W
IPC: F01C21/08
Filed: 1981-10-14
Granted: 1984-08-07
Abstract: POWER TRANSMISSION                           ABSTRACT    A variable displacement vane pump is provided in which a pair of rings having oval-shaped inner contours are rotatably mounted in side-by-side relationship.  The rings are adapted for relative rotation to each other from a first position wherein the inner contours are in register with each other and a moved position wherein the inner con-tours are out-of-register, and means are provided for effecting the relative rotation, which include a gear sys-tem operatively connected to the rings.  A rotor member is mounted for rotation within the rings and is formed with a plurality of circumferentially spaced recesses which extend the entire axial length of the rotor.  Each of the recesses carries a pair of vanes in abutting relationship.  The vanes are mounted for radial movement in the recesses and are adapted for slidable contact with the inner contours of the rings.  The vanes form two side-by-side rows of vanes with each row in tracking relationship with the inner contours or the rings.  With the inner contours rotated to the first position, rotation of the vanes will pump a maximum volume of fluid through the pump and with the inner contours rotated to the moved position, the vanes will pump a reduced volume of fluid through the pump.
Patent CA-1172587-A (CA)
Inventor: PETIARD VINCENT
IPC: C12N5/00
Filed: 1981-10-21
Granted: 1984-08-14
Abstract: ABSTRACT            "PROCESS FOR THE CULTIVATION OF PLANT CELLS                     IN VITRO"     Plant cells are cultivated in vitro without agitation or immobilisation, e.g. for the production of a metabolite or a biotransformation.  The liquid medium may be circulated for removal of the desired products.
Patent CA-1128357-A (CA)
Inventor: HUDSON RONALD D R R SITE BOX C
IPC: A01B39/18
Filed: 1981-10-30
Granted: 1982-07-27
Abstract: ABSTRACT      In agrisultural tillage equitment, the rod weeder noted for its efficiet weed-killing abilities.  Conventional rod weeder equipment consists of a rod of desired length pulled beneath the surface of the ground, rooting out the weed and exposing its roots.  Methods which have been devised to prevent weed build-up on the  rod usually employ hydraulic or mechanical power to turn the rod.  In this invention the rod is pulled by one support arm bent at an angle to form a V shape enabling trash and Weeds to slide off the rod.  A spring and hinge assembly attached to this support arm hole the rod in possession for travel and yet allow some flexibility to eliminate bending the rod when travelling in rocky ground.
Patent CA-1170238-A (CA)
Inventor: NEUFELD HENRY L
IPC: A01K89/00
Filed: 1981-12-15
Granted: 1984-07-03
Abstract: ABSTRACT            In the packaging of a fishing reel for shipment or storage the protrusion of the crank handle takes up unnecessary space.  Separation of the handle from the reel for packaging often results in marring of the reel or handle as they rattle against each other.  This invention sets forth a foldable crank handle.  The crank handle has a base with a flat face. Extending into the base from the face and outward through its side is a slot.  A pair of tabs are formed at the interface of the slot, face and base side.  The crank handle is mounted to the reel by pivotally connecting an end of the axially movable crank rod, rotation of which retrieves the fishing line, into the slot.  When the crank rod is secured in the position for fishing line retrieval the face of the base abuts a fitting, rotatably located in the bearing means, which has a recess or receptacle.  In this position the crank handle may be operated to rotate the crank rod to retrieve fishing line. To fold the crank handle, the crank rod is loosened for  axial movement. The crank handle is folded to position locating the tabs in the bearing recess.   Securing the crank rod locks the tabs within the recess and crank handle in the folded positon.
Patent CA-1173246-A (CA)
Inventor: LEMMEYER GARY R
IPC: B41J1/02
Filed: 1981-12-17
Granted: 1984-08-28
Abstract: AN EDUCATIONAL TOY TYPE-PRINTING DEVICE               ABSTRACT OF THE DISCLOSURE        An educational toy type-printing device is disclosed comprising a type support member having an elongated opening, and one or more nests for receiving type.  The type is preferably L-shaped, and has a correct reading character such as a letter on one side of each leg, and a raised character on the other side of each leg that is a mirror image of the correct reading character. A transparent type holding member holds the type in the nests with the raised characters extending through the support member opening.  The raised characters are adapted, when inked and pressed against a receiving sheet, to make a correct reading print.
Patent CA-1187480-A (CA)
Inventor: BINET ANDRE
IPC: E21B/
Filed: 1982-01-12
Granted: 1985-05-21
Abstract: ABSTRACT OF THE DISCLOSURE The  invention  provides  an  apparatus  for   the recovery of geothermal energy.  The  apparatus  comprises  a first conduit which is  inserted  into  a  borehole  in  the ground so as to be in thermal contact therewith and a second conduit associated with the  first  conduit  which  is  also inserted into the borehole.  The second conduit is thermally insulated from the first conduit at least  along  the  major portion of its length and the first and second conduits have upper ends providing respectively an inlet and outlet for  a heat-transporting medium and lower ends which are closed  to the borehole and in communication with each other to provide a closed path for  the  heat-transporting  medium  from  the inlet to the outlet.  The heat-transporting medium  extracts heat from the ground  during  its  passage  down  the  first conduit and rises to the surface through the second  conduit at  least  partly  under  the  effect  of  the  thermosiphon produced as a result of the heating of the heat-transporting medium during its passage down the first conduit.
Patent CA-1165429-A (CA)
Inventor: LJUNG BO H G
IPC: G01C19/64
Filed: 1982-02-05
Granted: 1984-04-10
Abstract: Title of the Invention;  DITHER-PICK-OFF TRANSDUCER FOR                    RING LASER GYROSCOPE          Inventor:  Bo Hans Gunnar Ljung ABSTRACT OF THE DISCLOSURE A piezoelectric pick-off transducer is used for sensing dither velocity in a ring laser gyroscope.  The pick-off transducer is mounted on a spoke connecting the hub and rim of the gyroscope and it comprises two spaced electrodes equidistant about the point of inflection of the spoke.  A differential amplifier is connected at its input to the electrodes for generating a signal proportional to dither velocity.
Patent CA-1205937-A (CA)
Inventor: TRAVER FRANK J
IPC: C08K5/41
Filed: 1982-02-19
Granted: 1986-06-10
Abstract: WATER BASED RESIN EMULSIONS  ABSTRACT OF THE INVENTION           Water-based silicone resin emulsions are provided comprising an organopolysiloxane resin or mixture of resins which may include a solvent carrier, and a combination of emulsifying agents including cellulosic-type and anionic surfactant-type emulsifiers as well as an amount of water sufficient for providing a water-based emulsion having a desired viscosity and silicone resin solids content by weight.
Patent CA-1182206-A (CA)
Inventor: SLACK THOMAS R
IPC: G01N21/88
Filed: 1982-04-27
Granted: 1985-02-05
Abstract: ABSTRACT           There is provided a monitoring apparatus and method for the trimmed edge of pre-cold rolled strip, the edge having a rounded portion, a cut portion and a fractured portion. The apparatus includes a television camera and a magnification lens system for taking a magnified picture of the edge.  A television display device shows the magnified  picture on a video screen, and there is applied to the video screen a grid on which the picture can be superimposed.  The grid includes a plurality of spaced-apart straight lines, prefer-ably vertical, a rectilinear line perpendicular to the plural-ity of lines near one extremity of the plurality of lines, such that the rectilinear line can be brought into alignment with the video-displayed surface of the sample which is adja-cent the rounded portion.  The grid also includes a sloping line cutting obliquely across the plurality of straight lines and an intermediate line intersecting the plurality of lines at points such that the ratio between (1) the span of each of said plurality of lines from the rectilinear line to the intermediate line, and (2) the span from the intermediate line to the sloping line, remains the same.          In use, the operator determines where the sloping line crosses the bottom surface of the sample, traces upwardly along a hypothetical line parallel with the plurality of lines to see where the hypothetical line crosses the inter-mediate line, and then determines whether the top of the cut portion lies above or below that intersection.