baber/WOPTO huggingface dataset:
Patent CA-1162358-A (CA)
Inventor: LINDAHL JONAS A I
IPC: D21C9/08
Filed: 1981-12-07
Granted: 1984-02-21
Abstract: PROCESS AND APPARATUS FOR THE DERESINATION AND BRIGHTNESS IMPROVEMENT OF CELLULOSE PULP                ABSTRACT OF THE DISCLOSURE A process and apparatus are provided for the deresination and brightness improvement of cellulose pulp, by adjusting the pulp concentration to within the range from about 15 to about 35%; adding sufficient alkali to the pulp to bring the amount of alkali, calculated as NaOH, within the range from amount 0.5 to about 17 g/kg of water accompanying the pulp; adding sufficient oxidizing bleaching agent to the pulp to bring the amount of oxidizing bleaching agent to within the range from about 0. 2 to about 22 g/kg of water, subjecting the pulp to a mild, mechanical working in the bite of twin interdigitated rotating screws at an energy input of from 8 to 100 kWh per ton of pulp; removing and reacting the pulp with the added alkali and bleaching agent for from about 0.1 to about 5 hours; and then washing out dissolved resin from the pulp.
Patent CA-1165225-A (CA)
Inventor: CREECH CLYDE W
IPC: B23K7/10
Filed: 1982-01-19
Granted: 1984-04-10
Abstract: Abstract Single or ganged cutting torches for steel plates preheat the center of each hole to be cut prior to any dis-placement of the torches.  On completion of the preheating, the torches are laterally repositioned in correspondence with the common radius of the holes to be cut.  Simultaneously, the torches begin  to cut and motive means initiates and maintains circular movement of each of the torches commensurate with the circumference of the holes to be cut.  Positioning means for locating each of the torches in the X-axis and for translating the torches en masse in the Y-axis are disclosed.          Means for accommodating bowing of the steel plate along with means for setting the torches to cut various diameter holes at any bevel angle are described.
Patent CA-1171681-A (CA)
Inventor: MOLLEMANS WILLIE JASPER PLACE
IPC: E04C3/34
Filed: 1982-02-18
Granted: 1984-07-31
Abstract: "PRECAST BUILDING COMPONENTS" ABSTRACT OF THE DISCLOSURE          The invention consists of precast reinforced con-crete posts or columns adapted to receipt precase rein-forced rails for use as fences or building walls.  The posts or columns are notched or slotted vertically along one, two, three or four sides depending upon their use so that the rails can engage the notches at the upper ends of the posts or columns and can be slid downwardly to be retained between adjacent posts or columns.  At least one vertical side wall of the notches or slots incline out-wardly relative to the other vertical side wall of the notches or slots thus forming a wedge-shaped clearance with the corresponding face of the rail when inserted, so that grout or the like can be used to fill the clearance for sealing purposes.
Patent CA-1184029-A (CA)
Title: Procede et dispositif de recuit et de trempe au  defile pour elements metalliques allonges en aciers  fins ou speciaux
Inventor: BOURGET JEAN-CLAUDE
IPC: C21D9/56
Filed: 1982-03-30
Granted: 1985-03-19
Abstract: Procédé de recuit et de trempe au défilé pour éléments électriques blindés constitués chacun d'une âme conductrice, d'un enrobage à isolant minéral et d'une gaine extérieure en acier fin ou spécial à structure austénitique. Le procédé comprend une opération de recuit par apport externe de chaleur sous atmosphère réductrice ou neutre, et une opération de trempe par une circulation d'un fluide de refroidissement. On effectue le recuit de la gaine et de l'âme par un apport externe de chaleur à effet Joule, et on effectue la trempe par un contact direct entre les éléments et le fluide de refroidissement. Et un dispositif pour la mise en oeuvre de ce procédé.
Patent CA-1179923-A (CA)
Inventor: BELCHER ROY L
IPC: B23P11/00
Filed: 1982-04-22
Granted: 1984-12-27
Abstract: AUTOMATIC PALLET-MAKING MACHINE                         Abstract A pallet is automatically assembled and nailed together on a horizontally reciprocating carrier.  The carrier moves in a forward direction beneath a slat dispenser.  A first series of one-way trip dogs mounted on the carrier successively removes the bottom slat from a stack of slats held by a dispen-ser to deposit a series of slats onto the carrier to form the bottom deck of a pallet.  The carrier has stringer engagement levers which engage the ends of a series of stringers held in dispensers.  The carrier reverses direction after deposit of the bottom series of slats and each stringer engagement lever pulls a stringer from the dispenser with each stringer positioned transversely to the previously dispensed slats.  As the carriage moves in the reverse direction, another series of one-way trip dogs mounted on the carrier successively dispenses a second series of slats to form the top deck of the pallet.  The carrier with the laid-up pallet next moves to a nailing station where nailers automatically fasten the top and bottom slats to the stringers.  The carrier then moves to a ratcheted bottom-stack-ing device which removes a nailed pallet from the carrier and adds that pallet to the bottom of a vertical stack of pallets.
Patent CA-1192929-A (CA)
Inventor: MATTES ROLF
IPC: F16L33/22
Filed: 1982-05-31
Granted: 1985-09-03
Abstract: 1. An impervious connector for ductile tubes, comprising for each tube (2) to be connected, a sleeve nut (1) threaded (7) on the outside to be attached on the tube (2) and to be screwed in a sleeve tube (10) bearing on the inside corresponding threadings (11), the sleeve tube (10) bearing on the inside, from its core (12) in the direction of each of its extremities (13), a convergent truncated tapered rotation surface (14) which emerges from the lower side wall (15) at a depth greater than the length of penetration of the sleeve nut (1) in the sleeve tube (10), characterised in that, the truncated tapered rotation surface (14) ends, on the core side (12) of the sleeve tube (10), in a cylindrical rotation surface, arranging thus a free space (16) in which, after assembly by screwing, the extremity of the tube (2), deformed, comes to lodge itself and compress itself and in that, the interior diameter of the sleeve nut (1) is greater than the exterior diameter of the cylindrical rotation surface ending the truncated tapered rotation surface (14).
Patent CA-1196647-A (CA)
Inventor: HOWELL FREDERICK H
IPC: C07C217/56
Filed: 1982-06-17
Granted: 1985-11-12
Abstract: Case 3-13444/MAC 1803 Canada ABSTRACT OF THE DISCLOSURE     Aminoalkyl aromatic compounds and their production New compounds having the formula R4(QNH2)2     I   wherein the residues QNH2 are the same or different and each is a residue of formula   wherein n is an integer from 1 to 15, R1 is C1-C8 alkyl, R2 is C1-C4 alkyl or R1 and R2, together with the carbon atom to which they are attached, form a C5-C8 cycloalkylene residue, R3 is H or C1-C6 alkyl, C3-C8 cycloalkyl or C6-C10 aryl with the proviso that if R4 = 1,4-phenylene, n = 3 and R1 = R2 = Methyl, R3 is different from H, and R4 is a mono- or polyvalent C6-C20 aromatic or C4-C20 .pi.-excessive heterocyclic residue; these compounds are useful as intermediates for polyamides and plastics.
Patent CA-1181834-A (CA)
Inventor: GRIFFITHS EDWARD E
IPC: B66C13/18
Filed: 1982-06-21
Granted: 1985-01-29
Abstract: ABSTRACT OF THE DISCLOSURE    A remote control system for controlling the movement of manually operable mechanisms such as hydraulic control valves for hydraulically oper-ating the various cylinders on equipment such as cranes, or the like.  A remote control unit includes a deadman switch and one or more potentiometers that provide control signals to a corresponding number of servo circuits.  Each servo circuit drives a motor and a motor position sensing potentiometer that generates an error signal back to the servo.  The motor rotation provides linear movement to the hydraulic control valve through a solenoid operated mechanical coupling,  The servo circuit includes safety circuitry that detects open or shorted circuits in the cable to the remote unit and releases the solenoid coupling and returns the motor to a neutral position.  When closed, the deadman switch diverts high pressure hydraulic fluid into the hydraulic systems so that, if desired, all hydraulic control valves may be preset to the desired position and, upon closing of the deadman switch, all preset hydraulic cylinders will become operative.
Patent CA-1180974-A (CA)
Inventor: COOK THOMAS E
IPC: A61K8/46
Filed: 1982-07-13
Granted: 1985-01-15
Abstract: FOAMING SURFACTANT COMPOSITIONS      Abstract of the Disclosures Foaming compositions containing an alkylpolysaccharide surfactant and a cosurfactant mixture consisting essentially of an alkylbenzene sulfonate with either an alkyl glyceryl ether sulfonate, an alpha-olefice sulfonate, an alkyl polyethoxylate carboxylate or mixtures thereof.
Patent CA-1184158-A (CA)
Inventor: CHADWICK JAMES B
IPC: B66D3/00
Filed: 1982-07-20
Granted: 1985-03-19
Abstract: ABSTRACT     A loader and transporter for large loads such as cotton modules has a wheel-mounted main frame, which may be self-propelled or of tractor-drawn trailer type, a deck, incorporating a reversible longitudinal conveyor, being connected by a transverse pivotal connection to the main frame.  Lifting means are provided for raising and lowering this pivotal connection and the deck and tilting means are provided for tilting the deck so that, when the deck is lowered, it can be tilted from a substantially horizontal low-load travelling position to a position for loading from ground level, and when the deck is raised, it can be tilted from a substantially horizontal high-load travelling position to a position for unloading onto a semi-trailer, for example.
Patent CA-1213132-A (CA)
Inventor: MACMICHAEL DONALD B A
IPC: B23Q1/00
Filed: 1982-09-17
Granted: 1986-10-28
Abstract: ABSTRACT OF THE DISCLOSURE           An automated machine or robot comprises an arm capable of being moved to a workpiece and having at one end a tool holder for receiving any of several tools for carrying out different operations on the workpiece.  A coupling mechanism carried by the arm is capable of actuation to couple and disengage an tool from the tool holder.  A stationary tool rack incorporates a plurality of locations for storing the several tools to be connected to the arm.  An actuator in the tool rack engages the coupling mechanism carried by the arm when the arm is in the vicinity of the rack to cause coupling or disengagement of the tool holder to or from the respective tools stored in the rack.
Patent CA-1200528-A (CA)
Inventor: ASH JAMES J
IPC: C25D5/02
Filed: 1982-10-01
Granted: 1986-02-11
Abstract: ABSTRACT OF THE DISCLOSURE     Printed circuit boards are carried generally vertically, along a path, with the tabs at the lower end being immersed in an electrolyte.  The boards are automatically conveyed through opposed serially arranged pairs of rollers, which drive them along their path.  Brushes wipe the boards to prevent contact with electrolyte above the desired contact level, as they are conveyed along the path.  The solution is constantly replenished and turbulence pro-vided by delivering electrolyte solution, with insoluble metallic ions in it, by pumping the solution from a sump, through an array of nozzles along each side of the path, thus providing fresh electrolyte along with providing tur-bulence to the electrolyte.  The nozzles are charged at a sufficiently low level to avoid their destruction.  Electrical contact is made with the printed circuit boards, by means of serially engaging the boards with spring fingers of a continuous conductor along each side of the boards as they are conveyed along their path, and thereby conducting the applied charge to the immersed tabs, whereby the tabs function as cathodes for electrodeposition of metallic ions thereon  The drive for the boards is provided by means of opposed pairs of rollers.  One roller in each pair is a driving roller, with the opposing roller functioning as an idler, but forming an interference fit between the rollers as the boards are carried therebetween.  The idler rollers are arranged in a bank, for adjustably being positioned to accommodate boards of various thick-nesses.  The electrical connection with the upper ends of the boards may like-wise be adjustably positionable to accommodate boards of various heights.
Patent CA-1196391-A (CA)
Inventor: BARKALOW CLARE E
IPC: G09B23/28
Filed: 1982-10-27
Granted: 1985-11-05
Abstract: PNEUMATIC LUNG ANALOG FOR SIMULATION OF SPONTANEOUS          BREATHING AND FOR TESTING OF VENTILATORY DEVICES USED          WITH SPONTANEOUSLY BREATHING PATIENTS               ABSTRACT OF THE DISCLOSURE         A pneumatic lung analog for simulating spontaneous breathing and for testing of ventilatory devices used with spontaneously breathing patients and a kit for modifying training test lungs for this purpose is provided.  The lung analog comprises a frame, a test ventilator, or lung simulator, expansible chamber; and a spontaneous breath expansible chamber disposed on the frame for receiving the output of a ventilatory device and a spontaneous breath generator, respectively.  A movable end plate is disposed on the lung simulator and spontaneous breath expansible chambers for concurrent movement therewith when the spontaneous breath expansible chamber is inflated.  Transducers are provided for measuring the airway pressure and the volume of air supplied to the lung stimulator chamber by the ventilator being tested for determining the performance characteristics of the ventilator, such as the added work of breathing attributable to the ventilator.
Patent CA-1168428-A (CA)
Inventor: NIMERICK KENNETH H
IPC: C09K3/18
Filed: 1982-11-15
Granted: 1984-06-05
Abstract: ABSTRACT OF THE DISCLOSURE          Frozen water is thawed by applying to the surface thereof a composition containing water and sub-stantially water soluble components comprising (1) a polyhydroxy compound or monoalkyl ether thereof; (2) an organic nonvolatile compound having at least one hydro-philic group, (2) being different than (1); (3) an inorganic salt which functions to lower the freezing point of water, wherein only one of (2) or (3) need be present but both may be present; (4) sufficient quantity of an organic polymer which functions to increase the viscosity and tackiness of the composi-tion sufficiently to permit a uniform layer of the composition to be placed on the frozen surface and, (5) H2O.
Patent CA-1186590-A (CA)
Inventor: TOMLIN JERRY B
IPC: F16K11/065
Filed: 1982-11-18
Granted: 1985-05-07
Abstract: PILOT ACTUATED SPOOL VALVE                   Abstract of the Disclosure A pilot control valve having a housing and a gen-erally tubular shaped cage having supply fluid ports, vent ports and an outlet port with a pilot actuated hollow spool valve element telescopically movable in the cage and poppet seats at opposite ends of the cage for engagement by the valve element.          The supply ports and the vent ports are elongated slots directed transversely to the axis of the cage and valve element for pro-viding maximum flow passages with a minimum of spool travel.  The ends of the spool are in contact with the cage at all times and the axial extent of the contact between the spool and the cage is greater than fifty percent.  The spool engages the interior of the cage at the fluid ports and vent ports for reducing flow restric-tions. The cage is of metal and includes a recess coaxially positioned at each end of the cage for receiving and enclosing one of the valve seats.  A metal valve housing abuts one end of the metal cage and includes exterior threads for securing the valve into a pocket for properly loading the valve seats.  A dash pot between the valve element and the cage cushions the valve element.          A pilot control stem is connected to the valve element exteriorly of the valve element.  A spring plate having a recess is connected to the control stem by a split ring connected to a groove in the stem and positioned in the recess.  The valve is pressure com-pensated from the ambient environment by a flexible membrane.  The valve may include a seal carrier for providing a seal between mating surfaces of an underwater control-pod.  The seal may be a comparison type or pressure energized type.
Patent CA-1193550-A (CA)
Inventor: HARVEY KENNETH
IPC: A23L1/275
Filed: 1982-11-23
Granted: 1985-09-17
Abstract: ABSTRACT    "VISUALLY CLEAR COLOURED DENTRIFRICE" There is disclosed a visually clear coloured dentifrice comprising a liquid vehicle having a refractive index between about 1.36 and 1.47, up to about 10% by weight of a gelling agent, about 5-50% by weight of a polishing material having a refractive index similar to that of that of the said liquid vehicle, such that the said dentifrice is visually clear in appearance when the said polishing material is dispersed in the said liquid vehicle and about 0.004-1% by weight of a lake pigment insoluble in water and in the said liquid vehicle, the said lake pigment containing an inherently colourless substrate.
Patent CA-1168574-A (CA)
Inventor: DRAKE ELDON L
IPC: F04D13/10
Filed: 1983-01-24
Granted: 1984-06-05
Abstract: IMPROVED ANTI-GAS LOCKING APPARATUS          Abstract of the Disclosure An anti-gas locking apparatus for a downhole pump com-prises a sleeve disposed below the pump and in fluid communi-cation with the pump inlet, a housing disposed about the sleeve and fluidly communicating at its upper end with the well in which the pump is disposed, and a cross-over assembly communicating lower portions of the housing with the lower end of the sleeve.  The cross-over assembly comprises a cross-over diffuser including a jacket member, the upper end of which mates with the lower end of the sleeve, and a dome mem-ber within the jacket member.  Apertures are formed through the jacket member and ome member and webs extend between these members to form inlet passages into the interior of the dome member from the annulus between the housing and the sleeve and outlet passages about the dome member to the sleeve.  An impeller is disposed within the jacket member be-low the dome member.  Disclosed is an improved geometry of the cross-over diffuser in which webs forming the walls of the inlet and outlet passage spiral about the dome member with ever increasing vertical slope to a substantially verti-cal disposition and the diffuser is provided with similarly shaped flow shaping vanes within the outlet passages.  The impeller is provided with vanes that increase in vertical dimension from the center of the impeller toward the periphe-ry thereof so that, with the improved geometry of the dif-fuser, turbulence of well fluids passing through the diffuser is avoided to prevent evolution of gases in the diffuser.
Patent CA-1182094-A (CA)
Inventor: HOLTGRAVER EDWARD G
IPC: F16K27/02
Filed: 1983-01-25
Granted: 1985-02-05
Abstract: Abstract A wafer-type valve for securing between two flange fit-tings comprises a valve body having a flowway therethrough, connection formations integrally adjoining the valve bod and extending radially therefrom, a valve element mounted in the flowway, and adapter means adjoining the valve body and ex-tending outwardly therefrom.  First longitudinally extending connectors cooperate between the connection formations of the valve body and the adapters to connect the adapters to the valve body, while second longitudinally extending connectors cooper-ate between the adapters and the flanges of the flange fittings to connect the adapters to the flange fittings. The valve also includes a seat lining its flowway and a seat retainer axially abutting the seat and one end of the valve body.  The adapter overlaps the seat retainer so as to mount it to the valve body.
Patent CA-1198631-A (CA)
Inventor: KOENNEMAN DONALD E
IPC: F23N5/24
Filed: 1983-01-27
Granted: 1985-12-31
Abstract: Abstract A flow control device is provided for use with a fan to prevent pressure excursions in a furnace or any other hardware equipment to which the fan is connected. The control device is connected in parallel relation with respect to the fan so that a recirculating flow path is formed between an outlet of the fan and an inlet thereof.  This recirculating flow path controls the pressure differential produced by the fan.  The control device includes duct work and a controlled element, preferably, a damper. In a furnace system, an induced draft fan is connected in series with a furnace and the controlled device is normally in a closed position in parallel with the induced draft fan.  Upon the occurrence of one or more predetermined fault conditions, the controlled device modulates open to provide a circulating path through the induced draft fan and rapidly controls the pressure differential between the inlet and outlet of the fan.  Since this pressure differential is maintained within a desirable range, the induced draft fan does not create too great a suction against the inner walls of the furnace.
Patent CA-1219297-A (CA)
Inventor: CAMPBELL JOSEPH K
IPC: F16L27/02
Filed: 1983-01-31
Granted: 1987-03-17
Abstract: ABSTRACT           There is provided a pipe joint between a first pipe end and a second pipe end.  The pipe joint includes telescoping means allowing the ends to move axially with respect to each other while maintaining fluid-type communication.  The joint also includes a plurality of contraction units located exterally of the pipe ends and the telescoping means.  Each contraction unit includes a rod member with one end engaged with a first flange member fixed with respect to the first pipe end, while the other end of the rod member is secured to a piston riding in a cylinder with a cylinder bottom,  the cylinder being engaged with a second flange member fixed with respect to the second pipe end.  The cylinder bottom lies is between the piston and the previously defined one end of the rod member, and the cylinder is displaced axially away from the telescoping means.  A fluid conduit connects the interior of one of the pipe ends with the cylinder volume lying between the piston and the cylinder bottom, so that the pressure inside the cylinder volume is a function of the pressure inside one of the pipe ends.  This allows compensation for the expansion forces arising from pressure in the pipe joint, but does so with a structure in which the contraction units are not located directly opposite the telescoping means, thus facilitating disassembly for repair and other purposes.
Patent CA-1207088-A (CA)
Inventor: HEMPLEMAN MIRKA
IPC: H01L23/00
Filed: 1983-03-08
Granted: 1986-07-02
Abstract: Abstract of the Disclosure Transient Absorption Semiconductor Device A transient absorption semiconductor device comprises a thin planar semiconductor body of one con-ductivity type having regions of opposite conductivity type diffused into opposite surfaces thereof so as to define relatively closely spaced rectifying junctions which interact with one another when the device is subjected to an overvoltage causing the reverse biased one of the junctions to breakdown from a low to a relatively high conductivity state.  With an increase in the magnitude of the current flowing in the device, the potential difference developed across the device decreases from the breakdown voltage but does not decrease below a set non-zero voltage.  It is believed that majority charge carriers from the forward biased junction are swept into the reverse biased junction in increasing numbers with increasing surge current which modifies the characteristics of the broken down junction and produces the decreasing voltage characteristic. Because the voltage drop across the devie decreases after breakdown, the surge current handling capability of the device is increased and transient absorption devices can correspondingly be manufactured in smaller sizes than heretofore and with less associated heat dissipating encapsulation.  Also disclosed is a dual device with greater power handling capabilities.