baber/WOPTO huggingface dataset:
Patent CA-1192521-A (CA)
Inventor: ROONEY CRAIG E
IPC: H01H13/70
Filed: 1982-07-09
Granted: 1985-08-27
Abstract: KEYBOARD     Abstract of the Disclosure A moldable, impulse operation synthetic resin keyboard, and a method of fabricating the same, are provided wherein the keyboard achieves essentially standard, tactile feel and feedback, mechanical N-key rollover protection, and precise, reliable output. The preferred embodiment of the keyboard includes a synthetic resin base plate having a plurality of elongated, cantilever mounted flippers, along with a plurality of elongated, laterally spaced, inwardly and opposedly extending, pivotal, key-supporting arms.  Upon depression of a key, the associated flipper is deformed until a release point is reached, whereupon the flipper is disengaged, allowing the flipper to quickly return to its rest position.  A keyboard output is developed as the flipper, during overtravel thereof past its rest position, strikes a signal-generating assembly.          An alternative embodiment of the keyboard includes a plurality of depressible keys mounted on respective upright synthetic resin flaps designed to collapse upon key depression and engage and move an underlying, resilient, U-shaped shifting member; the member in turn engages and shifts another U-shaped resilient element which supports one or more upstanding encoding posts.  When the U-shaped element reaches a cocked position it is disengaged from the shifting member and allowed to snap back toward the original rest position thereof independently of subsequent return movement of the key and shifting member.          The snap back motion is sensed and a corresponding key output signal developed.
Patent CA-1189982-A (CA)
Inventor: EIZENBERG MOSHE
IPC: H01L23/52
Filed: 1982-07-15
Granted: 1985-07-02
Abstract: ELECTRICAL MULTILAYER CONTACT        FOR MICROELECTRONIC STRUCTURE                    ABSTRACT          A guided interracial reaction is utilized which is to finish soon and to result in the formation of an equilibrium (or near equilibrium in actual practice) diffusion barrier.  Illustratively, for a diffusion barrier between A (e.g., Al) and B          (e.g., Si) the exemplary barrier layer in accordance with the principles of this invention is an alloy of MxNy (e.g., Pd20W80) satisfying the following criteria: (1) M is an element which reacts with both A and B to form compounds; and (2) N does not react with either A or B in compound formation in the presence of M.  A low mutual solid solubility of M and N is desirable.  Thus, N-A, and N-B eutectic systems are suitable for N and M.  The composition of the alloy is preferably rich in N.  The alloy can be made by codeposition or sputtering with the sandwich structure of A/MxNy/B being made in one pump-down without breaking vacuum.  A thermal annealing is introduced to engage reactions between A and MxNy and between MXNy and B, thereby forming compounds AMi and BMj, respectively.  Thermal annealing is introduced after all three layers are deposited to obtain a multilayer structure:     =A1/AMi=A13Pd/N(M)=W(Pd)/BMj= Pd2 Si/B=Si.          The extent of these reactions can be controlled by tailoring the concentration of M in the alloy.  All M cannot be depleted from N(M) be-cause of entropy of mixing and equilibrium will be reached when the compound formation energy equals the partial molar free energy of M in N.
Patent CA-1171631-A (CA)
Inventor: HACKENBERG DIETER B
IPC: F16B7/04
Filed: 1982-07-19
Granted: 1984-07-31
Abstract: ABSTRACT OF THE DISCLOSURE           In a framework made of separably connected profile bars, some of the bars have longitudinal slots and others have hollow sections for engagement of a coupling member in their face ends.  The coupling member consists of a bearing housing with an upwardly oriented wedge surface and a holding member with a matching inclined surface which is forced against the wedge surface by a spring force.  The holding member can be moved in a longitudinal direction by an eccentric pin arranged transversely to the profile bar and located with its actuating end in a cross hole of the profile bar so that a coupling hook at the end of the bolding member is movable both longitudinally relative to stationary projections of the bearing housing as well as laterally due to the rising movement of the matching inclined surface along the wedge surface.  In order to obtain a reliable and easy-to handle coupling member including the smallest possible number of detail parts, a resilient tongue is cut out from a sheet metal strip forming the holding member and bent so that an end of the tongue bears against an inner wall of the bearing housing and slides in a longitudinal guide.  The wedge surface extends between the two coupling projections, and an offset of the holding member engages behind the wedge surface, locating the eccentric pin in a rear wall cut-out of the bearing housing.  In addition, the resilient tongue enables the eccentric pin to be pressed in, similar to a pushbutton, so that in the initial position the actuating end of the pin is engaged in a cross hole of the profile bar.
Patent CA-1184826-A (CA)
Inventor: BECHER KLAUS
IPC: E04H15/00
Filed: 1982-07-23
Granted: 1985-04-02
Abstract: Inventor:  Klaus BECHER                    Title:  GARDEN AND MARKET UMBRELLA     ABSTRACT OF THE DISCLOSURE  .           This disclosure relates to an umbrella having a support tube uppermost end portion into which is telescopically received an umbrella shaft carrying a crown to which is pivotally connected cover ribs, a sleeve in external telescopic relationship to the support tube, a plurality of struts pivotally connected between the sleeve and the cover ribs, a threaded spindle within the umbrella shaft threaded relative to a threaded nut fixed to the umbrella shaft, and a flexible element, such as a cable, rope or wire, having ends fixed to the sleeve and to the umbrella shaft and being guided over a pulley carried by the umbrella shaft.
Patent CA-1150660-A (CA)
Inventor: DENSMORE NEAL W
IPC: B65G23/00
Filed: 1982-08-18
Granted: 1983-07-26
Abstract: A B S T R A C T             A monorail suspended conveyor system for conyey-ing materials along a curvîlinear path has a plurality of tandemly disposed belt supporting carriages.  Adjacent carriages are connected by an anticulated joint suspended from the overhead rail which provides for universal move-ment of one carriage relative to another.           The carriage train is moved along the monorail by two power units each having drive wheels disposed on opposite sides of the monorail.  The power units are pivotally interconnected such that the power units can be pivoted relative to one another whereby the respective drive wheels are pivoted toward and away from one another so as to maintain a drive traction relationship with the overhead monorail.  A rigid framework disposed in the proximity of the power units and suspended from the monorail is provided for transmitting movement force from the power units to the articulated conveyor.  Each end of the power unit is connected to respective end portions of the framework by a flexible chain.  When the power units and the conveyor along therewith is moved in one direction, one of the chains is put in tension so as to provide a force path through the rigid framework whereas the other chain is relaxed.  Move-ment in the opposite direction puts the other-chain in tension.
Patent CA-1192707-A (CA)
Inventor: MANNBRO NILS V
IPC: D21C3/02
Filed: 1982-12-08
Granted: 1985-09-03
Abstract: ABSTRACT         The invention relates to the production of polysulphide for the treatment of wood chips so that the consumption thereof is reduced in sulphate digestion of paper pulp.  The pulp is prefer-ably subjected to such a bleaching that implies access to oxygen in the pulp factory.  In an impregnation stage the wood chips are caused to react with black liquor, or digestion liquor prepared from white liquor and containing black liquor, while introducing oxygen of appropriate concentration.  The content of monosulphide, and to a certain extent other sulphur compounds also of the liquors, then forms polysulphide in contact with the wood chips which instan-taneously adsorb polysulphide.  The generation of polysulphide is promoted by wood reactions.  Black liquor having a reduced content of hydroxides is extracted from the wood chips before delignificat-ion thereof in digestion liquor prepared of white liquor and resi-dual of impregnation liquor from the wood chips.  The extracted black liquor is conveyed to a plant for regeneration of hydroxide in white liquor and sulphide totally or partly in the form of white liquor and which is again polysulphide-oxidized.  The increase of the yield of pulp from the digester as well as after the bleaching stage is greater in oxidative polysulphide production in the presence of wood chips than in separate production thereof in liquor before the charging into wood chips.  The invention is well adapted for continuously as well as batchwise performed pulp di-gestion.
Patent CA-1190589-A (CA)
Inventor: KEENAN JAMES P
IPC: H01K1/50
Filed: 1983-01-14
Granted: 1985-07-16
Abstract: LONG LIFE TUNGSTEN HALOGEN LAMP                              ABSTRACT     Long life tungsten halogen lamps using bromine as the halogen are provided when the lamp contains the bromine as HBr and CH3Br in a ratio of 2.5 to 1 when used with argon as a carrier gas and 1.5 to 1 when krypton is used.
Patent CA-1195261-A (CA)
Inventor: AIME MICHEL
IPC: B66D1/30
Filed: 1983-01-31
Granted: 1985-10-15
Abstract: ABSTRACT OF THE DISCLOSURE:           Winding gear of an elevator, adapted for lifting a load, gear including a casing and an output shaft having one end extending out of the casing and on which is mounted a cable pulley for supporting the load, which load exerts on the cable pulley and in turn radially on the shaft a force acting in a predetermined direction.          The output shaft is carried by two bearings within the casing and by a third bearing lying outside the casing and carrying the extending end of the shaft.  Springs support and resiliently bias the third bearing in a direction, radially of the shaft, which is in opposition to the predetermined direction mentioned above.
Patent CA-1178906-A (CA)
Inventor: BAUMEYER PHILLIP E
IPC: B65D17/32
Filed: 1983-02-09
Granted: 1984-12-04
Abstract: ABSTRACT OF THE DISCLOSURE A substantially full opening steel can end for food product cans easily opened by an aluminum pull tab riveted to a removable panel portion defined by a score line in a re-cessed end wall of the can end located close to a seam be-tween the can end and can body.  The panel portion has a pro-tective triple fold formation along its peripheral edge when removed, and the score line is located in the top layer of the triple fold formation beneath an overlying stepped tip of the pull tab which ruptures the score line during open-ing of the can.  The score line preferably extends 300°, 150° in each direction from the stepped pull tab tip around the can end to retain the opened panel portion and pull tab on the can when opened.
Patent CA-1197539-A (CA)
Inventor: COMERFORD JOHN
IPC: H01H19/58
Filed: 1983-02-28
Granted: 1985-12-03
Abstract: SEALED ROTARY SWITCH                 ABSTRACT OF THE DISCLOSURE         A sealed rotary switch has electrical contacts insert-molded in a stator.  The stator has generally open ends which are closed by a pair of covers.  The joint bet-ween the covers and the stator includes a notch filled with adhesive sealant.  The covers have aligned openings in which a rotor is mounted for rotation.  Each cover has a seat formed around its opening, with a resilient seal member located in the seat and sealing against the rotor.
Patent CA-1189629-A (CA)
Inventor: MOOREHEAD ROBERT M
IPC: E21B44/00
Filed: 1983-06-14
Granted: 1985-06-25
Abstract: A B S T R A C T           A mud logging system for receiving and displaying conditions measured during the drilling of a well includes a plurality of units for receiving and processing signals from sensors responsive to the values of the conditions.  A/D convertors in each of said units produce digital representations of signals received from the sensors and the digital representations are utilized with visual display means in the units for digitally dislaying values of the conditions.  A slave computer of the digital type is interfaced with the A/D converters and a file disk.  Under control of said slave computer the digital representa-tives are transferred to the file disk, and a recorder also under control of the slave computer displays selected ones of the conditions.  The system also includes a master computer of the digital type connected to access data on the file disk, to utilize the accessed data to provide for analysis of drilling conditions.
Patent CA-1197020-A (CA)
Inventor: BAKER PAUL A
IPC: G06F12/14
Filed: 1983-09-08
Granted: 1985-11-19
Abstract: ABSTRACT OF THE DISCLOSURE:    An improved memory management unit (MMU) for interfacing between a CPU and a main computer memory.  The MMU's memory provides overlapping management capacity.   This permits relocation data and limit data to be stored for a plurality of processes, and thus, allows several programs to be run without reprogramming the MMU. Special "access" bits are also stored in the MMU's memory which, by way of example, prevent the writing into program, accessing of unselected processes or user access to certain memory locations to prevent, for instance, the copying of an operating system.
Patent CA-1233146-A (CA)
Inventor: BLAIR LAWRENCE W
IPC: F01D5/04
Filed: 1983-09-09
Granted: 1988-02-23
Abstract: MULTI STAGE CENTRIFUGAL IMPELLER                   ABSTRACT OF THE DISCLOSURE      A multistage centrifugal impeller in which each blade row is individually matched to optimum efficiency characteristics in a manner which minimizes blade lean. Each blade row is composed of twisted blades which substantially equalize working fluid diffusion from blade root to blade tip while restraining blade lean to less than 15°.
Patent CA-1245478-A (CA)
Title: Ensemble porte-outil vibrant
Inventor: BORDET GEORGES
IPC: B25F3/00
Filed: 1983-10-07
Granted: 1988-11-29
Abstract: DE DIVULGATION Ensemble porte-outil vibrant du type comprenant un porte-outil (1) supportant une tige (52) pourvue de moyens (66) pour la fixation d'un outil et reliée à des moyens pour l'animer d'un mouvement de coulissement alternatif dans un sens et dans l'autre combiné avec un léger mouvement de rotation sur elle-même, lesdits moyens étant entraînés par une flexible (2), caractérisé en ce que l'extrémité libre du flexible (2) comporte des moyens (3) pour son montage et sa fixation entre les mors (4) d'une perceuse électrique.
Patent CA-1209264-A (CA)
Inventor: SATOH KOJI
IPC: G06K11/06
Filed: 1983-10-21
Granted: 1986-08-05
Abstract: CHARACTER RECOGNITION APPARATUS                         Inventors Koji Satoh Akihiro Ooka Yutaka Wada ABSTRACT OF THE DISCLOSURE          An apparatus for recognizing a character (including an alpha-numeric character, mark or other character) written using a stylus applied to a tablet which stylus and tablet include an arrangement for providing an indication of position of the stylus with respect to a surface of the tablet.  The character recognition apparatus determines the length and gradient (slope) of line segments of strokes drawn by a user which strokes combine to form characters.  After determining length and gradient of a line segment, there is assigned to the line segment a distinctive code.  A particular character is determined by examining the order of codes which define particular combinations of strokes.  Recognition of characters is carried out in substantially real time.
Patent CA-1245852-A (CA)
Inventor: CROWLEY J DAVID
IPC: F26B5/00
Filed: 1984-01-26
Granted: 1988-12-06
Abstract: ROGERS, BERESKIN AND PARR                 TITLE:  APPARATUS FOR DRYING MATERIAL         AT REDUCED PRESSURE             INVENTORS:  J. David Crowley Glen A. Pearce ABSTRACT OF THE DISCLOSURE an apparatus for reducing the moisture content of a material, such as grain, has a variable volume chamber, which in use is filled with the material.  Material within the chamber is heated by heating means to reduce its moisture content.  A pumping means is connected to the chamber to pump off fluid from the chamber, whereby a sub-atmospheric pressure can be maintained in the chamber.  In use, the pressure differential between the inside and the outside of the chamber is carried by material within the chamber, and the chamber reduces in volume so that no substantial pressure load is carried by walls of the chamber.  The heating means can comprise steam pipes extending across the chamber or cylindrical heating elements formed from plates which define ducts for the steam or other heating fluid.
Patent CA-1221418-A (CA)
Inventor: GILKER CLYDE
IPC: G01R21/00
Filed: 1984-01-27
Granted: 1987-05-05
Abstract: ABSTRACT     The electric parameter metering machine comprises electric parameter pickup circuitry for sensing the instantaneous analog amplitude value of an electric parameter waveform in at least one phase in an electric power distribution system at selected time intervals during each full cycle, an A/D converter for converting the analog amplitude values to digital signals and signal processing circuitry including a memory for storing the digital signals.  The signal processing circuitry includes a microprocessor operable to apply a conventional waveform analysis technique to the digital signal information collected with respect to a selected number of cycles of the electric parameter waveform to obtain an instantaneous RMS value of the electric parameter and operable to process a sequence of instantaneous RMS electric parameter values at discrete time intervals to obtain time averaged or demand electric parameter values.  A visual display device is coupled to the signal processing circuitry and a pushbutton control panel is coupled to the signal processing circuitry for enabling an operator to operate pushbuttons to provide a digital readout of either instantaneous RMS, demand, or peak demand values on the visual display device.
Patent CA-1211234-A (CA)
Inventor: ELLIOTT ALLEN
IPC: A47C27/06
Filed: 1984-04-10
Granted: 1986-09-09
Abstract: ABSTRACT         A spring assembly for a seat cushion or the like.  The assembly consists of a flexible cover and a coil spring.  The flexible cover has a pocket proportioned to receive the coil spring.  The coil spring comprises a length of wire wound upon itself about a longitudinal axis to form an open coil spring having a plurality of turns.  The turns of the spring have a radius generated from the longitudinal axis which varies continuously along the length of the spring and is a maximum at the center of the length of the spring and decreases progressively toward each end of the spring such that, upon compression of the spring adjacent turns are radially spaced from one another to provide clearance therebetween to accommodate buckling of the wall of the cover without pinching of the cover therebetween.
Patent CA-1217106-A (CA)
Inventor: ANDERSON ERIC G
IPC: G06K13/08
Filed: 1984-04-24
Granted: 1987-01-27
Abstract: KEY CARD RECEIVER               Abstract of the Disclosure A key card receiver has a key card slideway facial insert and upper and lower body halves.  The insert has a tapered guideuay and a flat slideway with opposite parallel walls and side walls which extend perpendicularly from the guideway walls.  Abutments are connected to  he side walls, and the abutments include elongated hooks which extend around pedestals of the upper and lower body halves and lugs which extend into recesses in a jack in the lower body half.  The upper and lower body halves are joined together by pedestals which have complementary knobs and depressions.  Larger pedestals have aligned openings for mounting.  A front vestibule formed between the body halves receives the key card slideway insert, and a rear chamber provides space for mouting an electronic circuit for converting identification data on the card to a pulse train.
Patent CA-1216737-A (CA)
Inventor: WHITE JACKIE L
IPC: A24B15/42
Filed: 1984-06-26
Granted: 1987-01-20
Abstract: SMOKING PRODUCT            Abstract of the Disclosure A combustible smoking material having a color other than that of conventionally cured tobacco leaves is coated with finely divided vermiculite that has previously been subjected to heat treatment to develop a brown color therein.  The vermiculite coating imparts a tobacco-like brown color to the combustible smoking material.
Patent CA-1224709-A (CA)
Inventor: SAVOLSKIS EDWARD P
IPC: C03B5/235
Filed: 1984-07-04
Granted: 1987-07-28
Abstract: Abstract of the Disclosure In a multiport combustion furnace having a plurality of firing ports in undivided communication with a common source of combustion gas or air, the invention provides a method and apparatus for selective control of combustion air flow into one or more of the ports.  A small quantity of pressurized gas, e.g. air, is injected, e.g. by way of a flow control pipe in an individual port, generally along the flow path of combustion air through the port to alter the amount of combustion air flowing into the port for mixing with fuel.  Combustion air is increased by injecting air cocurrent with the combustion air flow to induce additional flow into the port.  Combustion air is decreased by injecting air countercurrent to the flow to impede flow through the port.
Patent CA-1221153-A (CA)
Inventor: ILON BENGT E
IPC: B65G43/00
Filed: 1984-08-15
Granted: 1987-04-28
Abstract: A B S T R A C T            This invention relates to a device for exploiting the maximum drive unit torque of the drives of vehicles (35) or conveyers, which vehicles (35) are movable in an optional direction or which conveyers permit transport of objects in an optional direction, the vehicle (35) or the conveyer having at least two driven means (H1, H2, H3, H4) with oblique ground contact elements (41), the driven means being driven by a drive com-prising one or more drive units (36-39). To be able to exploit the full power of the drives of vehicles of this type in its entirety, the device in question is characterized in that the maximum speed of the vehicle (35) and the conveyer, respecti-vely, is limited upon travel and conveyance, respectively, in a travelling/conveying direction deviating from a direction substantially parallel and/or perpendicular to the drive shafts (43) of the driven means (H1-H4), in which travelling/ conveying direction the vehicle (35) and the conveyer, res-pectively, can attain its maximum travelling/conveying speed.
Patent CA-1238011-A (CA)
Inventor: WRIGHT DAVID B
IPC: C25B15/02
Filed: 1984-08-16
Granted: 1988-06-14
Abstract: Abstract Method and means for automatically controlling chlor-alkali cells are described.  Control is exercised on the basis of a mass flow analysis, starting from a target caustic concentration for the catholyte output, to establish individual set points for optimum cell system operating conditions so as to achieve said target output value.  Such control is accomplished by sensors which monitor parameters including compositions and flow rates said sensors generating electrical signals in accordance with such parameters, said signals being passed to a central automatic control unit which is adapted to monitor these parameters of the cell and its associated brine and caustic output subsystems and to institute appropriate corrective actions whenever a tolerance band around one or more of said set points is exceeded.  The control unit is further adapted to provide daily and weekly operating summaries and to store said summaries for trends analyses to establish the scope and significance of any long-term degradative processes which might be occurring.