baber/WOPTO huggingface dataset:
Patent CA-1278295-C (CA)
Title: Beta-lactams and their production
Inventor: SUNAGAWA MAKOTO
IPC: C07F7/18
Filed: 1985-12-27
Granted: 1990-12-27
Abstract: Abstract:         The present invention is directed to beta-lactam compounds of the formula:                                         (I) wherein R1 and R2 are the same or different and each represent a hydrogen atom or a lower alkyl group, R3 is a lower alkyl group, R4 is a hydrogen atom, a carboxyl-protecting group or a thiolcarboxyl-protecting group, X is a hydrogen atom, a hydroxyl group or a protected hydroxyl group, Y is an oxygen atom or a sulfur atom and COZ is a carboxyl group, an activated or protected carboxyl group, a thiolcarboxyl group or an activated or protected thiol-carboxyl group.  The compounds are useful as intermediates in the stereospecific production of l-alkylcarbapenem compounds.
Patent CA-1280090-C (CA)
Inventor: MACIEREWICZ JACEK J
IPC: B04C5/28
Filed: 1986-01-21
Granted: 1991-02-12
Abstract: ABSTRACT OF THE DISCLOSURE       A novel seal arrangement is provided for use in processing apparatus of the type including a partition for separating zones of relatively high and low pressures. At least one aperture is provided in such partition, the aperture having a wall.  A processing unit (such as a hydrocyclone) has a portion thereof located in such aperture so that an annular region is defined between such unit and the aperture wall.  An annular seal of resiliently deformable material is located in this annular region and provides a seal between the above noted zones.  This seal is of cup-shaped form and includes an annular outer seal lip which is radially spaced from the processing unit.  This seal outer lip is connected to the remainder of the seal via an end wall.  The seal outer lip has inner and outer surfaces and a free annular edge remote from the end wall.  This inner surface is exposed, in use, to the zone of higher pressure such that the outer surface of the seal lip sealingly engages the wall of the aperture under the influence of the differential pressures acting on it.  The seal is located relative to the wall of the aperture and the wall of the aperture is of such dimension that the sealing engagement between the wall and the outer surface of the seal lip occurs in an annular sealing region located generally between and spaced from both the seal end wall and the free annular edge of the seal lip.  Also provided is a hydrocyclone cannister arrangement employing a plurality of spaced apart flat horizontally arranged partitions.  The hydrocyclones are disposed in the apertures provided in the partitions described above with the accept, feed and reject openings all located in respective horizontal planes thus providing the hydrocyclones with identical operating pressures.  The cannister arrangement may be conveniently accessible on a low horizontal level.  By providing a lid on the cannister the reject openings of the hydrocyclones may be easily inspected by removing the lid from the cannister.
Patent CA-1289696-C (CA)
Title: Hydroxyl-terminated polyepichlorohydrin polymers and derivatives thereof
Inventor: JOHANNESSEN BIRGER
IPC: C08G65/26
Filed: 1986-06-19
Granted: 1991-09-24
Abstract: Abstract of the Disclosure Epichlorohydrin is polymerized in the presence of anhydrous  stannic  chloride  catalyst  and  an  alcohol initiator  to  produce  a  polyepichlorohydrin  product comprising  predominantly  secondary  hydroxyl-terminated polyepichlorohydrin  polymer  having  low polydispersity, from which polyurethanes and azide derivatives  can be made, polyurethanes prepared from such azide derivatives being useful as a binder for solid rocket propellants.
Patent CA-1337295-C (CA)
Title: Dihydropyridine derivatives and their preparation and pharmaceutical formulation
Inventor: SEMERARO CLAUDIO
IPC: C07D401/06
Filed: 1986-08-20
Granted: 1995-10-10
Abstract: Compounds are described of the formula :                    (I) and physiologically acceptable salts thereof, in which R1 represents hydrogen or C1-4 alkyl, R2 represents hydrogen, C1-6 alkyl or phenyl(C1-3)alkyl in which the phenyl ring may be substituted by a nitro, C1-3 alkyl 9 C1-3 alkoxy or hydroxyl group or a halogen atom, or R1 and R2 may together with the nitrogen atom to which they are attached form a pyrrolidino, piperidino, hexamethylenimino, morpholino, thiamorpholino, thiamorpholino 5-oxide, thiamorpholino 5,5-dioxide, piperazino, N-methylpiperazino or N-phenylpiperazino ring;    Alk represents a methylene or ethylene chain.    R3 and R4 independently represent a C1-6 straight or branched chain alkyl or alkoxyalkyl group;     R5 represents C1-4 alkyl;    R6 represents a C1-13 alkyl group or a C5-8 cycloalkyl group which may be substituted by C1-3 alkyl; and R7 represents a halogen or hydrogen atom or a C1-3 alkyl group.    The compounds represented by formula (I) reduce intracellular calcium ion concentration by limiting transmembranal calcium ion concerntration and thus may be useful for the treatment of cardiovascular disorders such as hypertension.
Patent CA-1300629-C (CA)
Title: Process for producing amidine sulfonic acid intermediates for guanidines
Inventor: MARYANOFF CYNTHIA A
IPC: C07C381/14
Filed: 1986-09-03
Granted: 1992-05-12
Abstract: PROCESS FOR PRODUCING AMIDINE SULFONIC ACID INTERMEDIATES FOR GUANIDINES            Abstract An efficient synthesis of quanidines, e.g. of the formula (III), by oxidizing a thiourea, e.g. of the following formula (II):     (III)                                      (II) with H2O2 and a molybdenum catalyst to yield an aminoiminomethane sulfonic acid which can then be reacted with an amine followed by optional transamination steps.
Patent CA-1284757-C (CA)
Title: Produce hydration system
Inventor: EDWARDS TIM L
IPC: B01D36/00
Filed: 1986-09-12
Granted: 1991-06-11
Abstract: ABSTRACT OF THE DISCLOSURE The present invention represents an automatic produce hydration system of improved efficiency and design.  The system is self-contained, and adaptable for use in both pre-existing and new produce display racks. The system first includes a filter unit designed to remove foreign particulate materials from incoming water.  In fluid communication with the filter unit is an automatic filter cleaning system for ejecting collected foreign particulate materials from the system at selected time intervals.  After filtration, the water is introduced into a pressurization system.  Once the pressure has been increased, pressurized water is delivered through an external water delivery line having a plurality of spray heads associated therewith.  The spray heads have restriction means therein to ensure that a fine mist-like spray is delivered to the produce materials.  The pressurized water delivery system also ensures that the flow of water through the spray heads occurs instantaneously, thereby eliminating the initially slow delivery of water and gradual increase to full delivery pressure characteristic of non-pressurized systems.  In fluid communication with the external water delivery line is a drippage control system which prevents water from dripping onto the produce materials from the spray heads after the delivery of water thereto has stopped.  A timer control unit is used to coordinate all of the systems and subsystems of the present invention to ensure smooth, efficient, and automatic operation.
Patent CA-1295560-C (CA)
Title: Telomeric dna probe
Inventor: COOKE HOWARD J
IPC: C12Q1/68
Filed: 1986-12-23
Granted: 1992-02-11
Abstract: ABSTRACT      A DNA probe, designated 29C, comprises a telomeric deoxynucleotide sequence from near the short arm ends of the X and Y chromosomes wherein there exists a region of hypervariability amongst unrelated individual members of a population.  The probe has application in paternity determination and in the identification of individuals and provides a useful addition to the range of probes of this type which are used in forensic science and in pathology.
Patent CA-1315717-C (CA)
Title: Nucleic acid derivatives
Inventor: YANO JUNICHI
IPC: A61P31/12
Filed: 1987-01-06
Granted: 1993-04-06
Abstract: ABSTRACT        Novel nucleic acid derivatives wherein the purine or pyrimidine ring in the nucleic acid polymer is substituted with at least one SH group, or said derivatives contain a di-sulphide bond, or both.  These derivatives have certain phys-iological activity and are useful in pharmaceutical prepara-tions.
Patent CA-1292382-C (CA)
Title: Side load surveillance camera
Inventor: BEAVER RICHARD C
IPC: G03B17/00
Filed: 1987-01-30
Granted: 1991-11-26
Abstract: ABSTRACT        A surveillance camera having a housing with top and bottom walls, opposed side walls, and front and rear walls; and a lens mount and shutter means positioned in the housing adjacent to the front wall thereof.  The camera has a horizontally extending wall in the housing spaced rearwardly of the lens mount and shutter means, intermediate the top and bottom walls, providing a magazine chamber and a drive means chamber; an opening in a side wall of the housing for slidably receiving a film magazine in the magazine chamber, whereby the camera can be operatively positioned and maintained in close proximity with the ceiling of a bank or the like; a movable cover for said opening; a film magazine removable positioned in the magazine chamber and having a bottom wall and a front wall with an aperture therein to provide an exposure location for film, and including first and second film spools, a film positioning assembly adjacent the front wall, and film guide means for guiding film from the first spool, past the exposure location and film positioning assembly, and onto the second spool; an electric motor and drive means actuated thereby provided in the drive means chamber for effecting rotation of the shutter and movement of the film in timed relationship, for admitting light to the exposure location at predetermined intervals; and means for maintaining the film magazine in the magazine chamber at a fixed position relative to the lens mount.
Patent CA-1285658-C (CA)
Title: Cpu channel to cpu channel extender
Inventor: ARMSTRONG C PETER
IPC: G06F11/10
Filed: 1987-03-13
Granted: 1991-07-02
Abstract: CPU CHANNEL TO CPU CHANNEL EXTENDER     ABSTRACT OF DISCLOSURE     A system is described with which a channel of an IBM  central  processor unit  (CPU)  may communicate at channel  speed  with  a channel  of  another  CPU  over extended  distances.   The  system  incorporates  coupler units at each CPU site and each coupler unit has high speed  dedicated  data transfer logic that is  enabled during  data  transfer  by  a  microprocessor.   During initial selection sequences the microprocessor controls and sets up conditions for data communication through a high  speed  serial  full  duplex data link capable of accommodating  channel  speed  data  transfers.   Each coupler employs suitable parallel to serial and serial to  parallel  converters. Parity  error  checks  are performed throughout the  system to detect errors and alert the  system of the occurrence  of errors.  Data transfers occur without interlock across the link and in a rapid manner.
Patent CA-1283487-C (CA)
Title: Method and apparatus for determining in a computer which of a number of programmes are allowed to utilise a rapid access memory
Inventor: SUNDELL HANS E
IPC: G06F12/08
Filed: 1987-06-09
Granted: 1991-04-23
Abstract: ABSTRACT OF THE DISCLOSURE         A method and apparatus for determining which programme will utilise a rapid access memory in a computer working with a plurality of programmes and having a conventional slow access memory and a rapid access memory are described.  During a test period there is registered for each programme the number of in-structions in the programme requiring access to the memory, this number being divided by the whole memory space required by a pro-gramme, the quotients formed after each other in this way being compared with each other and for the programme with the highest quotient the memory content is transferred from the slow access memory to the rapid access memory.  For each programme there is registered with the aid of a counter the number of instructions requiring access to the slow access memory.  This number is divided with the aid of a measuring circuit by the entire memory space for the respective programme noted in a space memory.  For the programme with the highest quotient the memory content is transferred from the relatively slow access memory to the rapid access memory.  An address memory is arranged, and for the pro-gramme information transferred from the slow access memory to the rapid access memory the address memory reads out the starting address of the programme information in the rapid access memory on addressing a starting address in the slow access memory.
Patent CA-1291491-C (CA)
Inventor: SHINBROT TROY
IPC: B65H5/04
Filed: 1987-08-18
Granted: 1991-10-29
Abstract: ABSTRACT OF THE DISCLOSED EMBODIMENTS In a copier with a moving platen document imaging system, wherein the platen is a part of a moving platen unit reciprocally driven relative to the stationary body of the copier, with a document on, and moving with, the platen being imaged by the copier in an imaging movement of the moving platen unit, the improvement including an automatic document feeder for automatically feeding documents on to and off of the platen solely utilizing the reciprocal movement of the moving platen unit, including a document feeding system mounted to the moving platen unit for reciprocal movement therewith but rotatable relative to the platen for movement of documents relative to the platen, and a motion converting system for mechanically converting the reciprocal motion of the moving platen unit in at least one direction of movement thereof into appropriate intermittent rotation of the document feeding system for intermittently rotatably driving the document feeding system at a document feeding velocity substantially different from the reciprocal movement velocity of the moving platen unit, so as to feed a document on to and over the platen while the platen is reciprocally moving, and a system for automatically disengaging the document feeding system from the motion-converting system for holding a document on the platen without relative movement between the document and the platen during the imaging movement of the document and the platen.
Patent CA-1292436-C (CA)
Inventor: SAKURAI HIROYUKI
IPC: B43L19/00
Filed: 1987-09-29
Granted: 1991-11-26
Abstract: ABSTRACT OF THE DISCLOSURE           A transprinting-type error correction tape comprising a belt-like transprintable film, which is narrower than the base tape width, coated at the center of one side of a base tape.
Patent CA-1335843-C (CA)
Title: Programmable option select
Inventor: HEATH CHESTER A
IPC: G06F9/44
Filed: 1988-01-29
Granted: 1995-06-06
Abstract: A data processing  system includes  a planar board having a central processing unit  (CPU),  a main memory unit, and input/output (I/O) sockets or slots, each adapted to receive a selected one of a plurality of different and/or similar option cards. Each  card  contains  (or  is  connected  to)  and controls a respective peripheral device; and each card is pre-wired with an ID value corresponding to its  card  type.    Software  programmable  option registers on each card store parameters such as designated   default    (or   alternate)    address information,  priority  levels,  and  other  system resource  parameters.   A  setup  routine,  during initial   power-on,   retrieves   and   stores   the appropriate parameters in the I/O cards and also in slot positions in main memory, one position being assigned to each slot on the board.   Each slot position  is  adapted  to  hold  the  parameters associated with the card inserted in its respective slot and the card ID value.  That portion of main memory containing the slot positions is adapted to maintain the parameter and ID information by means of battery power when system power  fails  or is disconnected,  i.e., a nonvolatile memory portion. Subsequent  power-on  routines  are  simplified  by merely transferring parameters from the table to the card option registers if the status of all the slots  has  not  not  changed  since  the  last power-down, system reset, or channel reset.
Patent CA-1297477-C (CA)
Title: Polymer-supported alkyl azodicarboxylates and their use in mitsunobu reactions
Inventor: ARNOLD LEE D
IPC: C08F8/30
Filed: 1988-04-25
Granted: 1992-03-17
Abstract: ABSTRACT      A process for preparing an azodicarboxylate composition by chemically bonding dialkyl azodicarboxylates onto an insoluble solid polymer support.  This process comprises the immobilization of hydrazodicarboxylates onto an insoluble solid polymer support and oxidizing the hydrazodicarboxylates to azodicarboxylates.  The azodicarboxylate-polymer composition may be used in Mitsunobu-type reactions. After use in Mitsunobu-type reactions, the azodicarboxylate-polymer composition is recoverable and may be reused.
Patent CA-1303388-C (CA)
Title: Crankshaft and a process for balancing the same
Inventor: CHERRY JACK D
IPC: F16F15/22
Filed: 1988-06-01
Granted: 1992-06-16
Abstract: A CRANKSHAFT AND A PROCESS FOR BALANCING THE SAME           Abstract of the Disclosure A crankshaft and counterweights are balanced by adding additional weight without modifying their outer dimensions. Bores are drilled into the counterweights and then a slug of material which is of a different density than the original counterweight material is inserted into the drilled hole.  The slug may be held in place by any suitable means, e.g., press-fitting, upset fitting, welding or threading.  Particularly with threading, a slug shorter than the bore may be positioned anywhere within the bore.
Patent CA-1308738-C (CA)
Inventor: GERMANAUD LAURENT
IPC: C07C229/12
Filed: 1988-06-06
Granted: 1992-10-13
Abstract: The invention relates to new polyfluorinated compounds which are usable as anti-wear additives for lubricants. These compounds are of general formula:   <IMAGE>   in which RF is a perfluorinated radical, X denotes a divalent linkage-(CH2CF2)a(CH2)b-, -CF=CH-CH2- or -CFH-CH2CH2-, a is an integer ranging from 0 to 10, b is an integer ranging from 1 to 4 but equal to 2 if a is other than zero, R1 denotes a hydrogen atom or an alkyl radical, R2 denotes a hydrogen atom or a methyl radical and R3 denotes an alkyl radical. They are prepared by condensing an amino alcohol, RF-X-NH-CH2CH(R1)OH, with an alkyl ester of an unsaturated carboxylic acid, CH2=C(R2)-COOR3.
Patent CA-1300704-C (CA)
Title: Electrical shielding
Inventor: WATINE DIDIER
IPC: H01R13/658
Filed: 1988-06-10
Granted: 1992-05-12
Abstract: ABSTRACT     ELECTRICAL SHIELDING      An arrangement for electrically shielding an aper-ture in an electrical connector housing through which a plurality  of  screened  wires  are  intended  to  pass comprises:   i)   a number of electrically conductive ferrules which can receive the wires, and which can be electri-cally connected to the screen of the wire or wires extending therethrough;   ii)  an  electrically  conductive  shielding  plate that can be positioned in the aperture to close it, the member having a number of apertures and/or slots into which the ferrules can be releasably posi-tioned so that the wires can extend through the plate; and iii) a  retaining  plate  which co-operates  with  the shielding plate and/or the ferrules to secure the ferrules in position on the shielding plate.  The retaining plate can be released to allow one or more ferrules to be detached from the shielding plate.
Patent CA-1324976-C (CA)
Inventor: TWARDOWSKI ZBIGNIEW
IPC: C01B7/03
Filed: 1988-07-26
Granted: 1993-12-07
Abstract: Abstract of the Disclosure A  hydrochloric  acid-based chlorine  dioxide generating process is integrated with an electrolytic process  for  sodium hydroxide  production.    Generator liquor  in  the  form  of  a  sodium  chloride-enriched solution from the chlorine dioxide generator is passed to the central compartment of a three-compartment cell. Hydrogen ions formed in the anode compartment of the three-compartment cell migrate through a cation-exchange membrane to the central compartment to form hydrochloric acid with the sodium chloride solution while sodium ions migrate through a further cation-exchange membrane to form sodium hydroxide with hydroxyl ions produced in the cathode compartment of the three-compartment cell.  The acidified generator liquor containing the hydrochloric acid formed in the central compartment is forwarded to the chlorine dioxide generator to provide half the acid requirement therefor.
Patent CA-1298779-C (CA)
Title: Bottom hole shut-in tool
Inventor: KNIGHT ROBERT C
IPC: E21B47/06
Filed: 1988-08-19
Granted: 1992-04-14
Abstract: Abstract of the Disclosure A bottom hole shut-in tool incorporating a ball and seat shut-off valve and a ball and seat pressure equalizing valve.  The ball elements of the valves are formed of elastomeric material, which allows the ball elements to engage their seats in continuous annular sealing contact even when debris from the well is trapped between a ball and its seat or when a ball is not exactly aligned with its seat.  This arrangement effectively seals off the pressure gauge used in conducting a pressure survey from fluid in the well tubing located above the shut-off valve.
Patent CA-1302957-C (CA)
Title: Mobile earth mover having a scraper blade
Inventor: MANTINGH JAN
IPC: E02F3/65
Filed: 1988-09-26
Granted: 1992-06-09
Abstract: ABSTRACT          An earth mover comprising at least one wheeled axle: a supported frame movable by the axle, said frame further including means for pushing up soil, comprising an elongate scraper blade with a ground-facing sharp longitudinal edge being substantially right-angled to the forward direction of travel of the apparatus. The apparatus is characterized by a cylindrical rotor provided at an interspace from, and in operative position above, the scraper blade, and substantially parallel thereto. It is also characterized by means for rotating the rotor in a direction from the longitudinal edge towards the upper portion of the scraper blade; and by bars mounted on the rotor. The distance from the turning circle circumference of the bars to the scraper blade decreases in the rotation direction of the rotor.
Patent CA-1309471-C (CA)
Title: Programmable logic device
Inventor: KEIDA HISAYA
IPC: H03K19/177
Filed: 1988-11-18
Granted: 1992-10-27
Abstract: ABSTRACT OF THE DISCLOSURE      Selectors for input signals into a flip-flop circuit are provided, by which an output from a combinational logic circuit of its own PLE and an output from another PLE are made selectable, and the output from the combinational logic circuit is output independently of an output from the flip-flop circuit, so that either one of the outputs can be utilizable by use of external programmable wiring.  Further, by the selection of the respective input selectors of the flip-flop circuits, an output signal from the adjoining flip-flop circuit is inputtable, so that the flip flop circuits can be serially connected to each other.  Furthermore, a last flip-flop circuit of one PLE supplies an output signal to a first flip-flop circuit of the adjoining PLE by the selection of the input selector through connecting wiring for specialized use, so that PLEs adjoining to each other can be connected to each other without passing through the programmable wirings.