baber/WOPTO huggingface dataset:
Patent CA-1072607-A (CA)
Inventor: BROWN ARTHUR K
IPC: B60T13/12
Filed: 1977-07-14
Granted: 1980-02-26
Abstract: HYDRAULIC BRAKE BOOSTER HAVING INDEPENDENT           RESERVE SYSTEMS                 ABSTRACT OF THE DISCLOSURE A hydraulic brake booster provides two independent accumulators for assisting a brake application when insufficient pressure is communi-cated to the hydraulic brake booster for braking.  The first accumulator is connected to the hydraulic brake booster housing, and the second accumu-lator is remotely disposed to the housing with a conduit forming a connec-tion therebetween.  A spool valve, slidably mounted in the housing is engageable with a pair of check valves to communicate the first and second accumulators with a pressure chamber within the housing.  A pair of bores within the housing receive the check valves and a unitary relief and charg-ing valve is slidably carried in each bore for communicating an inlet port with each accumulator.
Patent CA-1072411-A (CA)
Inventor: PESCHEL HUGUETTE
IPC: A24C1/00
Filed: 1977-08-31
Granted: 1980-02-26
Abstract: ABSTRACT OF THE DISCLOSURE       A process for spreading out tobacco leaves for use in particular as cigar wrappers comprising the steps of putting the leaves in contact with a liquid, preferably water, and bringing about a relative movement of the leaves and the liquid in contact with said leaves, said movement effecting the spreading out of the leaf.
Patent CA-1059185-A (CA)
Inventor: RICHARD DOUGLAS B
IPC: B60P7/04
Filed: 1977-09-26
Granted: 1979-07-24
Abstract: A roll-up truck cover assembly for dump trucks and the like having upstanding side and end walls defining an upwardly open body for receiving particulate  material which may project upwardly in a heaped or humped configuration beyond the sides of the body.  The cover assembly comprises a flexible top cover sub-stantially co-extensive with the body cross-section viewed from above and the cover extends across and is attached to a front wall of the body above the side walls with side skirts laterally clos-ing the area adjacent front and side wall junctions.  A take-up roll for the flexible cover has a spring bias for rotation in a take-up direction and is mounted on a pair of arms at upper end portions of the latter.  Lower end portions of the arms are pivotally attached externally at sides of the truck body for swinging the take-up roll through an arc in a lengthwise traverse of the truck body.  In one embodiment a hand crank and cable sys-tem swings the arms in a direction opposite the spring biased take-up.
Patent CA-1038022-A (CA)
Inventor: WHITEHOUSE DAVID R
IPC: H05B41/16
Filed: 1977-10-26
Granted: 1978-09-05
Abstract: ABSTRACT OF THE DISCLOSURE   A method of energizing a laser source stimulating flash lamp directly from an AC power line.  Uncontrolled diodes couple the anode and cathode of the flash lamp directly to the AC line.  The lamp is triggered by a separate triggering circuit which produces its trigger pulse at a predeter-mined phase of the AC power source.  The use of high current carrying con-trolled rectifiers and large energy storage devices is thereby eliminated.
Patent CA-1101650-A (CA)
Inventor: GLOECKLER ALFRED
IPC: D06B3/02
Filed: 1977-10-28
Granted: 1981-05-26
Abstract: The process comprises the steps of depositing the yarn onto a conveyor belt in the form of a cohesive flexible continuous hollow cylindrical winding of yarns, said cylindrical winding being supported on said conveyor belt at least along a generatrix of said cylinder, said cylindrical winding being transported through a hood-shaped steaming chamber while following a conveying part successive-ly ascending, horizontal and descending, the treatment fluid being maintained air-free and pure within said chamber owing to relative specific weight effect.
Patent CA-1098658-A (CA)
Inventor: DZURIK JOHN A
IPC: D21H17/24
Filed: 1977-11-01
Granted: 1981-04-07
Abstract: 26,140 TITLE OF THE INVENTION     USE OF CHITOSAN IN CORRUGATING MEDIUM                        ABSTRACT Chitosan is used to improve the flat crush resistance of corrugating medium.  A solution of chitosan in dilute acid is added to corrugating medium pulp con-taining at least about 0.05%, based on the dry fiber weight, of spent semichemical pulping liquor.  The corrugating medium pulp is then formed into corrugating medium sheets, dried and manufactured into corrugating medium.
Patent CA-1105503-A (CA)
Inventor: HASHIMOTO MITSUO
IPC: C08K7/00
Filed: 1978-02-16
Granted: 1981-07-21
Abstract: ABSTRACT OF THE DISCLOSURE A gypsum composition comprising:  (A) a lightweight spherical gypsum and (B) at least one binder selected from the group con-sisitng of a water-soluble organic polymer, a water-dispersible organic polymer, a water-soluble inorganic compound, a water-dispersion medium colloid-forming inorganic compound, a water-hardenable compound and a mixture thereof. This gypsum com-position provides a gypsum mold which is lightweight and at the same time, has a great mechanical strength.
Patent CA-1041779-A (CA)
Inventor: GROETSCHEL KARL M
IPC: E21D11/12
Filed: 1978-03-15
Granted: 1978-11-07
Abstract: A B S T R A C T The roof of an underground mine working in a region newly exposed by the passage of a mining machine along an upright face of the working is supported by leading off a flexible mat from a stored supply thereof and applying the mat to the roof by directing means so that the mat extends along the newly exposed roof.  The vertical disposition of the directing means is controlled in accordance with the vertical disposition of a cutting element of the mining machine.  The stored supply of mat occupies a region which is already supported by roof supports, the mat being drawn from the stored supply in a first direction and then re-directed to extend along the newly exposed roof.  An operative connection between the directing means and the cutting element is established by a parallelogram arrangement of pivotally inter-connected members.
Patent CA-1092230-A (CA)
Inventor: SWEANY LOUIS P
IPC: G10K9/20
Filed: 1978-04-14
Granted: 1980-12-23
Abstract: LOW COST BUZZER                       Abstract of Disclosure A buzzer alarm has an electrically insulative housing fabricated of two molded pieces of electrically insulative material with a recessed vibratable diaphragm section constructed as a portion thereof.  The buzzer alarm includes cooperating vibrating means and timer means with the vibrating means being carried by a frame that is carried along a wall which is complimentary to another wall which carries a terminal block.
Patent CA-1098336-A (CA)
Inventor: HUBER THOMAS G
IPC: A61B5/022
Filed: 1978-04-20
Granted: 1981-03-31
Abstract: ABSTRACT OF THE DISCLOSURE         A cuff mechanism, for use in an automatic blood pressure measuring system requiring no user adjustments to such mechanism, includes an elongated flexible cuff band with a resilient spring associated therewith of a predetermined width defining an enlarged opening for receiving a user's arm.  A reversible motor intermittently drives a drum through a slip clut? adjusted to provide a snug, but not occluding, fit of the band about the various sized arms when the drum winds up the band into its contracted state.  The spring is generally mounted throughout the width of the band and extends substantially throughout the length thereof which defines the opening in its contracted state.          The band is attached to the drum substantially throughout the width thereof so that the drum will exert a uniform force to circumferentially contract the band snugly about the arm and to maintain same in a steady condition.  Locking means having a manual override automatically locks the drum in its wound-up condition to prevent the band from inadvertent loosening.  A flexible and expandable fluid chamber, having a sensor associated therewith, is located adjacent the band and extending generally the width thereof, such chamber being sufficiently elongated to contact and generally surround the arm with the sensor being adjacent the artery.  Selective pressure means automatically supply fluid to the chamber to expand same and occlude the flow of blood through the arm after which the blood pressure is taken by the system.
Patent CA-1105047-A (CA)
Inventor: MUKAI SADAYOSHI
IPC: C07F9/02
Filed: 1978-05-11
Granted: 1981-07-14
Abstract: ABSTRACT OF THE DISCLOSURE    A method of purifying triaryl phosphate to be used as electrical insulating oil, comprising a first step of washing the phosphate with the aqueous solution of alkali, a second step of diluting the phosphate with aromatic insulating oil, a third step of treating the diluted phosphate with acid clay in an atmosphere of dry gas so that the acid clay adsorbs the impurities in the phosphate and a fourth step of treating the phosphate under reduced pressure for removal of any remain-ing impurities therefrom.     :    1-
Patent CA-1088414-A (CA)
Inventor: ALLEN JOSEPH C
IPC: E21B43/30
Filed: 1978-05-17
Granted: 1980-10-28
Abstract: HIGH VERTICAL AND HORIZONTAL CONFORMANCE VISCOUS               GIL RECOVERY METHOD      (D#73,796-F) ABSTRACT OF THE DISCLOSURE     Disclosed is  an oil  recovery method especially useful  for  recovering viscous oil  from thick formations including tar sand deposits.  The method comprises several phases which accomplish efficient recovery of the viscous oil from the formation with good vertical and horizontal sweep conformance or effectiveness.  The first phase may utilize as few as two spaced apart wells, one for fluid injection and one for oil production and an oil recovery method such as injecting  steam  or a mixture of air and steam for low temperature, controlled oxidation is a preferred fluid for use in the first phase.  After fluid breakthrough at the production well occurs, the producer of the first phase is converted to an injection well and one or more new production wells outside of the pattern swept by the injected fluid are completed in the oil formation.  Thermal recovery fluids are then injected into two wells with the displacement moving in the  direction  of  the  new  production  wells.   The  oil displacement process of the second phase may be air or oxygen for  high  temperature  in  situ  combustion.   In  thick formations,  if the wells utilized in the first phase are completed low in the formation,  the new production wells should be completed high in the formation to expand the recovery zone vertically to encompass more of the formation.          A third phase employs a well located centrally to the four previous wells for production with air injection being into all four wells utilized in the first two cycles to further -I-expand the three-dimensional extent of the swept zone within the pattern defined by the wells.                             -II-
Patent CA-1083379-A (CA)
Inventor: SACHS MELVIN H
IPC: E04B1/04
Filed: 1978-05-23
Granted: 1980-08-12
Abstract: ABSTRACT OF THE DISCLOSURE          A block used for forming reinforced concrete struc-tures employs a number of thin-wall tubes supported in spaced parallel relationship to one another.  The upper and lower ends of the tubes are supported by laterally extending sheet metal frames which leave the tube ends open.  The upper frame has an upward opening channel shaped cross-section.  A pair of wall panels which form the inner and outer wall surfaces of the completed structure sandwich the tubes and extend between the frames.  The volume between the panels, exterior of the tubes, is filled with lightweight thermal insulation.  In the completed structure, the tubes are filled with reinforced concrete to form the columns for the structure and interconnected by hori-zontal reinforced concrete bond beams poured in the upper frame members.
Patent CA-1102155-A (CA)
Inventor: SOSA GERMAN TORO
IPC: E01F13/08
Filed: 1978-06-27
Granted: 1981-06-02
Abstract: ABSTRACT OF THE DISCLOSURE     A device for reserving individual parking areas includes a U-shaped rigid element having an intermediate leg joining parallel legs which are substantially shorter than the intermediate leg. The latter is loosely inserted in at least two clamps and rotatable therein through 90° between a locking position whereat the parallel legs are vertical and an unlocking position whereat the parallel legs are horizontal.  The clamps form an integral part of a platform or plate through which the assembly is mounted onto the floor at the entrance to an individual parking area.  The plate may have a perforated lug insertable through a groove existing in a bracket joined to the intermediate leg of the U-shaped element.
Patent CA-1106750-A (CA)
Inventor: REED ROBERT D
IPC: F23D17/00
Filed: 1978-07-12
Granted: 1981-08-11
Abstract: ABSTRACT OF THE DISCLOSURE     Apparatus for burning gaseous and liquid fuels in a furnace, to retard formation of NOx, comprising a fuel tube of selected length and diameter, closed at the end which is inserted into a combustion zone.  There are a plurality of ports drilled in the closed end of the fuel tube, the axes of which lie on a conical surface coaxial with the fuel tube.  The fuel tube is inserted coaxially into a burner tube of selected larger diameter, and the distant ends are substantially coplanar.  A plurality of jets of low pressure steam are injected through a plurality of ports into the annular space between the fuel tube and the burner tube at the outer end of the burner tube.  The steam jets flowing through the ports induce a flow of primary combustion air, which mixes with the steam and flows down the annular space to mix with the high velocity jets of fuel as they emerge from the ports on the fuel tube.  The fuel, air, and steam mix together prior to entering the combustion reaction zone.
Patent CA-1081310-A (CA)
Inventor: HUNTER DONALD W
IPC: H05B41/39
Filed: 1978-08-28
Granted: 1980-07-08
Abstract: A METHOD FOR VARYING VOLTAGE                 ABSTRACT OF THE DISCLOSURE    A method for varying the voltage in a high intensity discharge mercury lamp comprising the following steps:         (a) energizing the lamp at a substantially fixed current;         (b) selecting a predetermined voltage;     (c) sensing the lamp voltage; and (d) when the lamp voltage rises above the predetermined voltage, directing a pulsed flow of gas, which gas is at a temperature sufficient to condense the mercury, against the outer surface of the lamp intermediate of its electrodes at a pulse rate and pulse duration sufficient to achieve and maintain about the predetermined voltage.
Patent CA-1082034-A (CA)
Inventor: MYERS GLENN L
IPC: A01B71/06
Filed: 1978-08-30
Granted: 1980-07-22
Abstract: HITCH ADAPTER                   Abstract of the Disclosure A hitch adapter connects a tractor drawbar to an implement hitch pin and includes a cast housing having top and bottom walls and a forwardly open chamber that receives the rearward end of the tractor drawbar.  The housing has a pair of vertical openings elongated in a transverse direction and receiving vertical bolts having nuts at their lower ends which are tightenable to clamp the housing between the head of the bolt and the nut.  The shanks of the bolts are disposed on opposite ends of the drawbar and are shiftable laterally in the openings to engage the opposite side of the drawbar to limit lateral movement of the housing relative to the drawbar, the nuts being tightened to clamp the bolts in the selected position.  Serrated surfaces are provided on both the top and bottom of the housing around the openings, and each bolt is provided with a pair of washers having serrated surfaces that respectively engage the serrated surfaces on the top and bottom of the housing.  The serrations on said surfaces run in a fore and aft direction, and when the nuts are tightened on the bolts to clamp the serrations on the washers onto the serrations on the housing, lateral slippage of the bolts along the slot-like openings in the housing is eliminated.
Patent CA-1111609-A (CA)
Inventor: BLUMBERGS JOHN H
IPC: C11D7/54
Filed: 1978-09-01
Granted: 1981-11-03
Abstract: ABSTRACT:      A process of removing soil and/or stains from fabrics by immersing the fabrics in a peroxygen bleach bath containing as a peroxygen activator an aromatic sulfonic anhydride of the formula R1SO2-O-SO2R2, wherein each of R1 and R2, which may be alike or different, is an aliphatic radical selected from the class consisting of an alkyl radical of 1 to 18 carbon atoms; a cycloalkyl radical of 3 to 7 carbon atoms and a aromatic ring system selected from the class consisting of a phenyl group, taken together are an o-phenylene group, a naphthyl group, taken together are an o-napthylene group and a heterocyclic group having 1 ring or 2 fused rings, said ring or rings containing 5 to 6 members of which 1 to 2 are heteroatoms selected from the class consisting of nitrogen, oxygen and sulfur, said aromatic groups optionally bearing 1 to 3 substituents selected from the class consisting of nitro, alkyl of 1 to 16 carbon atoms, alkoxy of 1 to 16 carbon atoms, aliphatic carboxamido  of 1 to 16 carbon atoms, benzamido, chlorine and bromine. Aromatic is used herein its modern sense to signify an organic ring system having aromatic character including both aromatic hydrocarbon and heterocyclic ring systems. Also describe are dry blend composition containing the bleach bath components.
Patent CA-1099774-A (CA)
Title: Uninflammable dynamoelectric machine having coil windings and core encapsulated with unsaturated polyester resin-filler composition
Inventor: KOBAYASHI TSUGUO
IPC: H02K3/44
Filed: 1978-09-07
Granted: 1981-04-21
Abstract: UNINFLAMMABLE DYNAMOELECTRIC MACHINE HAVING  COIL WINDINGS AND CORE ENCAPSULATED WITH UNSATURATED POLYESTER RESIN-FILLER COMPOSITION            Abstract of the Disclosure In a dynamoelectric machine having a stator assembly of coil windings and a core, a heat-dissipating, unin-flammable, electro-insulative housing encapsulates the coil windings and the core.  The housing is made of a cured molded article or material formed of a resin-filler composition which comprises a liquid unsaturated poly-ester resin, a finely divided calcium carbonate powder, an inorganic mineral particulate having a particle size larger than that of the calcium carbonate powder, a chopped glass fiber and an aluminum hydroxide powder, wherein the ratio by weight of the calcium carbonte to the mineral particulate is 0.3 to 4, the ratio of the weight of glass fiber to the total weight of the compo-sition is 0.05 to 0.25, the ratio of the weight of the polyester resin to the total weight of the composition is 0.1 to 0.4, the weight ratio of the calcium carbonate powder, the mineral particulate and the glass fiber to the total weight of the composition is 0.2 to 0.6, and the weight ratio of the aluminum hydroxide powder to the total weight of the composition is 0.2 to 0.6.
Patent CA-1131729-A (CA)
Title: Data transmission system with test loop  facilities
Inventor: FINCK HERBERT
IPC: H04L1/24
Filed: 1978-09-28
Granted: 1982-09-14
Abstract: Abstract When testing a data transmission system comprising two trans-mission devices it is feasible that the test loops of both transmission devices are closed so that a latched (locked-in) state is created, wherein the loop signal continuously circulates from one transmission device to the other thus preventing a return to the normal state of data transmission via the two lines.  It is the object of the present invention to test the data trans-mission system without incurring a latched state.  According to the present invention at least one bit of the loop signal - adapted to be transmitted to the first transmission device via the second transmission device - is changed before it is re-transmitted to the second transmission device.  Use in data transmission systems adapted to operate in outgoing and incoming direction, in particular in the transmission of envelopes.
Patent CA-1090170-A (CA)
Title: Forging apparatus having means for radially moving blade die segments
Inventor: WALKER BRYANT H
IPC: B21K1/36
Filed: 1978-10-06
Granted: 1980-11-25
Abstract: FORGING APPARATUS HAVING MEANS FOR RADIALLY MOVING BLADE DIE SEGMENTS                         ABSTRACT       A forging apparatus has an upper die and lower die with the lower die being positioned on a die stack with the upper die being movable by a ram, said upper and lower dies having cylindri-cal portions extending towards each other where the rim of the formed disc is to be located.  Blade dies are positioned around the radial opening presented between the two faces of the upper and lower die as they rest on a preformed blank, said cylindrical array of blade dies being hels in position by two wires around their outer circumference and supported in the  forging operation by a cylindrical back-up die; the cylindrical array of blade dies being slanted outwardly at its upper and lower edge from where they engage the cylindrical portions, forming an upper and lower annular cam surface.  Ring members are positioned around both of said cylindrical sections for slidable movement thereon, said ring members being of wedge-shape cross-section so that as they are moved inwardly, when they contact said cam surfaces, they will cam said blade dies radially outward.  Actuating pins extend from each of said ring members to a location above and below their respective upper and lower dies where they can be actuated by spider arms fixed to an actuating shaft which extends through their respective ram or die stack.  Knockout pins are located in the upper and lower dies and are actuated by rods extending through each of the actuating shafts.
Patent CA-1106007-A (CA)
Inventor: ERIKSSON KENT
IPC: H01F27/30
Filed: 1978-10-11
Granted: 1981-07-28
Abstract: IN THE UNITED STATES PATENT AND TRADEMARK OFFICE                   APPLICATION OF            KENT ERIKSSON and UNO ZETTERLUND FOR            A DEVICE FOR THE PRESTRESSING OF CONCENTRIC CYLINDERS            -- ABSTRACT OF THE DISCLOSURE --A device for effecting mechanical prestressing in a pair of substantially concentric cylinders, in which the inner cylinder is prestressed in compression and the outer cylinder is prestressed in tension by means of the device in the form of a hose or hoses disposed in a gap between the cylinders and being subjected internally to a pressure medium, the hose or hoses being arranged helically in such a manner that the sum of the moments of the forces thereby caused by the pressure forces between the cylinders and occurring about the central axis of the cylinders in a plane containing such axis, is substantially zero.
Patent CA-1087031-A (CA)
Inventor: DIETSCHE ROBERT J
IPC: F23L11/00
Filed: 1978-10-31
Granted: 1980-10-07
Abstract: ABSTRACT OF THE DISCLOSURE         For a vent or flue damper of the type in which the damper is closed by an electrically energized actuator when the furnace is off and the actuator has first biasing means to open the damper when the actuator is deenergized, a second biasing means such as a torsion spring, independent of the first biasing means, is associated directly with the damper shaft and is adapted to always move the damper to an open position in the absence of the actuator.
Patent CA-1113602-A (CA)
Inventor: BROOKHART MARSHALL R
IPC: G10L19/16
Filed: 1978-11-03
Granted: 1981-12-01
Abstract: ABSTRACT            A recorder for storage and retrieval of digitized audio signals on a single track of a suitable record medium is disclosed.  The recorder includes networks for partitioning digitized audio signals into successive frames, each of which preferably contains a plurality of alternate data words and parity words, followed, at the end of each frame by an error check code word and a sync word.  The parity words of a given frame are generated from data words of other frames sufficiently spatially remote from the given frame to minimize the probability that a single drop out or other defect in a record medium will, upon playback, cause the loss of data associated with both the given frame and the other frames.          During playback, each frame is checked for errors, and if found, corrected data words are reconstructed from the parity words and data words of the other frames and are inserted in the data stream in place of the erroneous data words.