baber/WOPTO huggingface dataset:
Patent CA-1208715-A (CA)
Inventor: ARNON EPHRAIM
IPC: H04B1/58
Filed: 1984-05-09
Granted: 1986-07-29
Abstract: AN ADAPTIVE HYBRID     Abstract of the Disclosure An adaptive hybrid arrangement for interfacing a bidirectional communications channel with two unidirectional channels, especially for connecting a two-wire telephone line to a four-wire telephone trunk or repeater, comprises a hybrid having four ports.          One port is for the two-wire or bidirectional channel, the second and third are for the unidirectional channels. A multi-element balancing network is connected to the fourth port, i.e. opposite to the port connected to the bidirectional channel.  A correlation detector detects correlation between a signal in one of the unidirectional channels and an error signal in the other.  If correlation exists, an adjusting device adjusts the balancing network so as to reduce such correlation.                           (i)
Patent CA-1186150-A (CA)
Inventor: GILLESPIE JOHN L
IPC: A01G7/06
Filed: 1984-05-22
Granted: 1985-04-30
Abstract: ABSTRACT OF THE DISCLOSURE        A portable hydraulic injection unit having a housing containing a liquid reservoir and a plurality of vertical cylinders. A manifold is in fluid communication with the reservoir and individual inlet hoses connect the manifold with each cylinder. A check valve is located between the manifold and each cylinder to prevent back flow from the cylinders into the manifold. A piston is located within each cylinder and a piston rod is attached to each piston and extends upwardly out of the cylinder and is connected to an operating arm for raising and lowering the piston robs and pistons relative to the cylinders. An outlet is located at the lower end of each cylinder and an outlet hose is connected to the outlet to transmit liquid from each cylinder to an injector at the end of each outlet hose. A check valve is located between each cylinder and its outlet hose. A wheeled dolly supports the hydraulic injection unit.
Patent CA-1250295-A (CA)
Inventor: DAVIDSON THOMAS A
IPC: C07D487/04
Filed: 1984-05-30
Granted: 1989-02-21
Abstract: -i-Abstract of the Disclosure Novel 7-ether and 7-thioether derivatives of 2-aryl, 3-aryl, and 2,3-diaryl-2,5,6,7-tetrahydro-3H-pyrrolo[1,2-a]-imidazole and 8-ether and 8-thioether derivatives of 2-aryl, 3-aryl,and 2,3-diaryl-2,3,5,6,7,8-hexahydro-imidazo[1,2-a]-pyridine, such as 2,3,5,6,7,8-hexahydro-2-phenyl-8,8-di-methoxy imidazo[1,2-a]pyridine hydrochloride, useful as immunomodulators.
Patent CA-1232746-A (CA)
Inventor: BORASE VIJAY
IPC: C04B35/622
Filed: 1984-06-19
Granted: 1988-02-16
Abstract: Abstract A method of producing ceramic items which does not necessitate the use of high vapor pressure organic solvents, aqueous solvents, binders or plasticizers.  A monomer is used as a vehicle for deflocculation of the ceramic powder and, after forming, is polymerized to form a matrix which binds the ceramic particles together.
Patent CA-1212477-A (CA)
Inventor: JONES WALTER A
IPC: G06F9/38
Filed: 1984-06-28
Granted: 1986-10-07
Abstract: ABSTRACT OF THE DISCLOSURE   data processing system for processing a sequence of program instructions has two independent pipelines, an instruction pipeline and an execution pipeline.  Each pipeline has a plurality of serially operating stages.  The instruction stages read instruc-tions from storage and form therefrom address data to be employed by the execution pipeline.  The execution pipeline receives the address data and uses it for referencing stored data to be employed for execution of the program instructions.  Both pipelines operate synchronously under the control of a pipeline control unit which initiates operation of at least one stage of the execution pipeline prior to completion of the instruction pipeline for a particular instruction.          Thereby operation of at least one instruction stage and one execution stage of the respective pipelines overlap for each program instruction.  The instruction and exe-cution pipelines share high speed memory.  The pipeline control unit can independently control the flow of instructions through the two pipelines.  This is impor-tant for operation in conjunction with a microcode storage element which allows conditional branching and subroutine operation.  Circuitry also detects pipeline collisions and exception conditions and delays or inhibits operation of one or more of the pipeline stages in response thereto.  Under control of the pipe-line control unit, one of the independent pipelines can operate while the other is halted.
Patent CA-1221436-A (CA)
Inventor: SMITH GARY A
IPC: F25D16/00
Filed: 1984-09-11
Granted: 1987-05-05
Abstract: ABSTRACT           A control system and method for space tempera-ture regulating equipment are disclosed in which mechani-cal cooling equipment is controlled as a function of sensed space.  Temperature and a first temperature set point and an economizer for admitting low enthalpy outside air is controlled as a function of sensed space temperature and a second temperature set point lower than the first temperature set point.
Patent CA-1232911-A (CA)
Inventor: MURPHY BRYAN P
IPC: C07D209/08
Filed: 1984-09-27
Granted: 1988-02-16
Abstract: PROCESS FOR PREPARING 5.6-DIHYDROXYINDOLE                  ABSTRACT OF THE DISCLOSURE     5,6-Dihydroxyindole is prepared by the catalytic reductive cyclization of 4,5-dihydroxy-2,.beta.-dinitrostyrene in a single step using hydrogen with a palladium, platinum or rhodium catalyst in a polar hydroxylic reaction system.  No reaction byproducts or only a single reaction byproduct are produced.  The 4,5-hydroxy-2-.beta.-dinitrostryrene intermediate can be produced by the chemoselective debenzylation of 4,5-dibenzyloxy-2,.beta.-dinitrostyrene using trifluoroacetic acic.  5,6-Dihydroxyindole is a useful component in hair dye formulations and as an intermediate in the synthesis of melanin.
Patent CA-1237101-A (CA)
Inventor: HEFTY BELA
IPC: B65H16/06
Filed: 1984-10-19
Granted: 1988-05-24
Abstract: TAKE-UP SPOOL FOR A DEVICE FOR APPLYING AND CONVEYING    A HOSE-SHAPED PROTECTIVE COVERING FOR A TOILET SEAT                     A B S T R A C T            In the take-up spool of a device for applying and conveying a hose-shaped protective covering for a toilet seat, a cavity is provided into which disc-shaped tablets can he inserted for deodorization and/or disinfection.  The cavity has stops for securing the tablets' position and openings for discharging the agents given off by the tablets to the air.
Patent CA-1248841-A (CA)
Title: Fire protection system for aircraft
Inventor: ENK WILLIAM A
IPC: A62C35/02
Filed: 1984-10-26
Granted: 1989-01-17
Abstract: A B S T R A C T            An aircraft fire protection system includes a plurality of extinguishant bottles (19a-19g) which can be detonated to deliver extinguishant into a manifold (22) and then to selected fire zones (10-18) through valves (26, 30, 38, 40, 42) associated with the respective fire zones.  Solid state control circuitry opens the appropriate valve when a corresponding push button switch (64, 66, 68, 82, 84) is initially depressed and detonates one or more bottles in sequence when the same switch is subsequently depressed one or more times.  A manual crash switch (70) opens all valves when depressed once and discharges all bottles when depressed again.  An automatic crash switch (246) opens all valves and detonates all bottles if the aircraft should crash.  A test circuit (60) operates in a test mode to open all valves in sequence and to simulate sequential detonation of all bottles by applying low level current to the bottle detonator circuits (232a-232g).
Patent CA-1242655-A (CA)
Inventor: JUURMAA KIMMO
IPC: E02B15/04
Filed: 1984-11-20
Granted: 1988-10-04
Abstract: ABSTRACT     A method  for collecting oil  from a water body covered by broken  or  solid  ice  and  an  arrangement  for  applying  the method  are  described.  The  method  includes  the  step  of applying  an  ice  submerging  device  to  act  on  the  ice  for breaking up solid ice and for submerging oily ice below the water surface. The device may be a vertically movable unit or a vessel floating and moving in the water. The device has through-flow openings for water and and is brought  into a position  where  the  openings  are  below the  water  surface.          Thereby  the  water  level   inside  the  device   is  kept substantially below the level of the ambient water in order to produce such a strong water flow into the device that the surrounding ice will be effectively rinsed. The oil washed away from the ice by the water is collected in the device.          The device is so formed that it is operable in an ice field without causing ice piece cloggings.
Patent CA-1218144-A (CA)
Inventor: BARAN PAUL
IPC: H04L12/44
Filed: 1984-12-11
Granted: 1987-02-17
Abstract: ABSTRACT OF THE DISCLOSURE          A tree-type two-way data communications system for use in a cable television system having a single head-end subsystem, data sources and a cable television distribution network.  Each data source is a source of digital commands to the head-end subsystem.  The two-way system has a number of interface subsystems intermediate of the head-end subsystem and each one of the data sources.          The interface subsystems are coupled in a tree structure to the head-end subsystem and each one of the data sources is coupled to one of the interface subsystems.  Each one of the interface subsystems is coupled to at least one other of the interface subsystems.  The interface sub-systems receive without acknowledgment through the cable distribution network from at least one of the data sources the digital command signals. Each interface subsystem verifies data format and regenerates and forwards at least some of the digital commands as command packet signals in a packet signal format on an unlinked carrier towards the head-end subsystem.  The head-end subsystems receive the digital command signals as command packet signals and develop response signals.  The cable-distribution sub-system couples response signals in a tree-structure without loops from the head-end subsystems to each one of the data sources through a common signal path.  That path is independent of the unlink for acknowledging receipt of the command packet signals.
Patent CA-1239258-A (CA)
Inventor: BOEHLAND BURNELL G
IPC: B08B9/00
Filed: 1985-01-08
Granted: 1988-07-19
Abstract: CHIMNEY CLEANING APPARATUS WITH MOTOR DRIVE     Abstract A base of the apparatus is upwardly spaced from the chimney end and supports an electric motor and reduction drive for power-ing a drum on which a cable is entrained.  A chimney cleaning brush is mounted on a pole structure suspended from the base with vertical movement imparted to the brush by said cable.  The pole structure is segmented and carries a drum at its lower end about which the cable is reversed.  The pole structure is stabilized by a crossmember in abutment with the chimney walls.  A motor control circuit includes switch components regulating the direction and duration of motor operation.
Patent CA-1218805-A (CA)
Inventor: KELMAN CHARLES D
IPC: A61F2/16
Filed: 1985-02-07
Granted: 1987-03-10
Abstract: ABSTRACT      An intraocular lens having an optic of sufficiently small dimen-sion so as to permit its insertion through an incision substantially smaller than 5mm in length. The lens includes a masking means which is deformable between an expanded condition in which it masks the edge portion of the optic which would otherwise cause a glare effect and a contracted condition in which the masking means is located within the confines of said small dimension of the optic.
Patent CA-1217872-A (CA)
Inventor: GEORGIOU CHRISTOS J
IPC: G06F15/16
Filed: 1985-03-01
Granted: 1987-02-10
Abstract: DISTRIBUTED ARBITRATION FOR MULTIPLE PROCESSORS   Abstract A method of arbitrating for N processors request-ing access to a shared resource utilizing 2 log2N shared variables, such as electrical lines.  Each processor can assert a line which is asserted if any  processor  is  asserting  it.   A  requesting processor asserts one of two lines for each bit of a unique processor  address,  the choice of line depending on the value of the bit.  The processor then examines the non-asserted line to determine if it is asserted by another processor.  If the other line is asserted,  the requesting processor either releases  its  own asserted line or waits depending on the value of the address bit.  Thus, priority  is  determined  by  the  address  values. Once a processor has successfully asserted lines for every bit of its address it is granted access.            Arbitration with fairness can be obtained by di-viding processors  into  two  fairness  groups  and assigning a turn to one of the groups.  A proces-sor  is  allowed  into  arbitration  if  the  turn belongs  to its  fairness group.  Upon completing access,  the processor  is assigned to the other fairness  group.   The  turn  is  changed  when  no processor of that  fairness  group  is  requesting access.
Patent CA-1228102-A (CA)
Inventor: KOWALIK JOSEPH W
IPC: H01H85/045
Filed: 1985-03-28
Granted: 1987-10-13
Abstract: ABSTRACT OF DISCLOSURE           A time delay fuse comprises an initially open end insulating housing having conductive terminals at the opposite ends thereof, a current-heatable strip connected to one of said terminals, a thermal mass in heat communication with the current-heatable strip and a coil spring and current shunt strip electrically coupled between the current-heatable strip and the other terminal to complete a circuit between the terminals.  A heat meltable solder connection is located between said thermal mass and the coil spring and current shunt strip, the spring and current shunt strip being spring urged away from the thermal mass so that upon the melting of the heat meltable solder connection the coil spring and current shunt strip will be pulled away from the thermal mass to break the physical and electrical connection of the coil spring and current shunt strip with the current-heatable strip.  The current-heatable strip, thermal mass, coil spring and current shunt strip form a sub-assembly insertable as   untensed unit into an initially open end of the fuse housing before the associated terminal is applied thereto.  The coil spring and current shunt strip are suspended from the initially open end of the housing and the rest of the sub-assembly is pushed axially inward thereof to stretch the coil spring.  The housing is then deformed permanently inward to engage a portion of the sub-assembly to hold the coil spring in its stretched condition.
Patent CA-1231350-A (CA)
Inventor: AMIET LOUIS
IPC: C07C51/567
Filed: 1985-06-12
Granted: 1988-01-12
Abstract: The present invention relates to a process for the preparation of trifluoroacetic anhydride which comprises bringing together trifluoroacetic acid with the anhydride of an  alpha -halogenated acid.
Patent CA-1247398-A (CA)
Inventor: MEIER DANIEL J
IPC: G01J3/10
Filed: 1985-06-19
Granted: 1988-12-28
Abstract: AUTOMATIC MONOCHROMATOR-TESTING SYSTEM                    ABSTRACT           An automated chemistry-testing system for analyzing serum samples in which a controlled intensity, monochromatic light beam of substantially any desired wavelength can be selectively directed through any one of a plurality of test solutions in a spectrophotometer. The system operates at very high speed, permitting serum test solutions to be scanned with a multiplicity of wavelengths of light to provide extensive data on the characteristics of the serum.  The invention also pro-vides substantial flexibility and permits a wide variety of test to be more reliably performed.
Patent CA-1239908-A (CA)
Inventor: VATH FRANCIS L
IPC: B65D27/06
Filed: 1985-06-21
Granted: 1988-08-02
Abstract: Abstract of the Disclosure A two-way mailer unit which is formed from a single sheet of paperlike material. The sheet has first name and address and second name and address applied thereto.  The sheet has a first severance line and a second severance line, separated by a first fold line.  The sheet is folded and portions thereof are attached together to form an envelope pocket section with a flap portion extending therefrom.  One of the portions has a window through which the first name and address appears.  A message section is provided between the severance lines.  The folded sheet in such form is mailable to a recipient whose name and address appears as the first name and address. The sheet is severable by the recipient along the severance lines so that the envelope pocket section with the flap portion is separated from the message section. The recipient may then note the message section.   The recipient places a message and/or payment piece within the envelope section.  The flap portion of the envelope section is foldable over the envelope section to close the envelope section for remailing the remaining portion of the mailer unit to the second name and address, which appears on the flap portion.
Patent CA-1243519-A (CA)
Title: Self-attaching fastener and method of securing same  to sheet material
Inventor: SAWDON EDWIN G
IPC: B23P19/00
Filed: 1985-06-28
Granted: 1988-10-25
Abstract: ABSTRACT OF THE DISCLOSURE An  assembly  is  disclosed  having a  simple,  standard fastener secured to sheet material such as sheet metal.  A support strap is integrally formed in an offset relationship with the sheet material, and opposite sides of the fastener are deformed to interlockingly engage the remainder of the sheet material.   A method and apparatus are also disclosed for securing the fastener to the  sheet material  in substantially one operation, including alternate manual and automatic means for feeding fasteners to such apparatus.
Patent CA-1253335-A (CA)
Inventor: EBERLE HEINI
IPC: A23B9/08
Filed: 1985-07-05
Granted: 1989-05-02
Abstract: INVENTORS:  HEINI EBERLE, JOSEF HUBER          INVENTION:  METHOD AND APPARATUS FOR DRYING A MOIST MATERIAL                  ABSTRACT OF THE DISCLOSURE              In  the method  for  drying moist  agricultural products, the relative humidity of fresh air inducted from the environment is reduced by heating it so that the fresh air can take up moisture from the products to be dried. A portion of the thermal energy contained in the moist exhaust air is extracted by the evaporator of a heat pump before the moist exhaust air exits to the environment. At temperatures below 10°C a portion of the moist exhaust air is mixed with the cold fresh air before being heated by the condenser of the heat pump.
Patent CA-1251947-A (CA)
Inventor: EICHBERGER ROBERT T
IPC: G01F25/00
Filed: 1985-08-20
Granted: 1989-04-04
Abstract: Abstract of the Disclosure A system for indicating the level of material in a vessel as a function of material capacitance comprising a resonant circuit including a capacitance probe adapted to be disposed in a vessel so as to be responsive to variations in capacitance as a function of material level.  An rf oscillator has outputs coupled to the resonant circuit and to a phase detector for detecting variations in phase angle as a function of probe capacitance.  Level detection circuitry is responsive to an output of the phase detector and to a reference signal indicative of a predetermined level of material for indicating material level as a function of a difference between capacitance at the probe and the reference signal.  An automatic calibration circuit adjusts the resonance characteristics of the parallel resonant circuit.  A remote module provides facility for initiating a system-test and a system-calibrate operation, either individually or sequentially.
Patent CA-1259407-A (CA)
Inventor: KAWAI YOSHIHIKO
IPC: G11B5/127
Filed: 1985-10-29
Granted: 1989-09-12
Abstract: ABSTRACT OF THE DISCLOSURE           A magnetic head is disclosed which comprises a main core made of sendust material or amorphous alloy and a pair of reinforcing cores for holding the main core in position so that the main core is sandwiched between the pair of reinforcing cores.  The main core comprises a pair of core halves which are adhered to each other by glass material containing phosphorus pentoxide (P2O5) and barium oxide (BaO) as main constituents.  P2O5 preferably amounts to about 40% by weight of the whole glass material and BaO preferably amounts to about 50% by weight of the whole glass material.  This glass material affords a satisfactory bond between the core halves, without appreciable diffusion into the core halves.  As a result, the leakage flux curve is abrupt and performance is enhanced from the viewpoint of high density recording.
Patent CA-1258244-A (CA)
Inventor: KERKHOFFS PIETER L
IPC: C12N9/80
Filed: 1985-11-13
Granted: 1989-08-08
Abstract: ABSTRACT           The invention relates to a process for the prepar-ation of L-.alpha.-amino acid and D-.alpha.-amino acid amide from DL-.alpha.-amino-acid amide by contacting the DL-.alpha.-amino acid amide in an aqueous solution with an .alpha.-amino acyl amidase containing preparation obtained from a culture of Pseudomonas putida in the presence of traces of bivalent metal ions as activator, characterized in that the aqueous solution also contains a potassium salt selected from the group consisting of potas-sium sulphate and potassium chloride.  The invention further relates to a process for the preparation of a L-.alpha.-amino acid and D-.alpha.-amino acid amide starting from the corresponding alde-hyde, potassium cyanide and ammoniumsulphate, subsequent treatment with a ketone and potassiumhydroxide and finally subjecting to enzymatic hydrolysis with a preparation obtained from Pseudomonas putida.
Patent CA-1243662-A (CA)
Inventor: RIEDL REINHOLD
IPC: B66F3/02
Filed: 1986-02-21
Granted: 1988-10-25
Abstract: ABSTRACT OF THE DISCLOSURE         With a lifting and depositing device for portable box-like articles, in order to be able to operate their rack and pinion jacks manually and with ease by crank assemblies, each crank assembly has a haft-like crankcase, which has at one end a rotatable crankshaft and at the other end a rotatable drive shaft, which can be connected with an adjacent rack and pinion jack having a winch housing.  The crankshaft and drive shaft are operatively connected with each other so that the latter is driven by the former.  The crankcase can be connected with an adjacent winch housing and be pivoted into different work positions as well as fixed in such positions on the winch housing.  Thus, the operation of the rack and pinion jacks is especially sim-implified in their top and bottom end positions on the uprights of the lifting and depositing device.
Patent CA-1270129-A (CA)
Inventor: HERBST THOMAS
IPC: E21D21/00
Filed: 1986-03-04
Granted: 1990-06-12
Abstract: ABSTRACT OF THE DISCLOSURE         A tension member for use as a rock anchor or the like has a plurality of steel wires embedded in a tubular member with a central bore and formed of a hardenable plastics material, such as a synthetic resin.  The outer surface of the tubular member is profiled such as in the manner of a screw thread so that an anchor member can be threaded on to the tubular member.          The steel wires are arranged symmetrically around the axis of the tubular member for carrying the load transmitted by the tension member.  If there is a displacement of the rock anchored by the tension member then both the tension and shear-ing stresses acting on the wires can cause individual wires to be displaced from the tubular member into its central bore.  As a result, the flexibility of the tension member is increased and the most highly stressed wires can move out of the tubular member into its central bore.