baber/WOPTO huggingface dataset:
Patent CA-2010724-A1 (CA)
IPC: H03L7/193
Filed: 1990-02-22
Abstract: ABSTRACT OF THE DISCLOSURE A slip phase control phase-locked loop includes a voltage-controlled oscillator for generating a frequency signal, and a binary programmable frequency divider for pro-ducing a frequency-divided signal in response to the fre-quency signal supplied thereto, the binary programmable frequency divider including a 2-scale-factor prescaler, a swallow counter, and a main counter.  The phase of the frequency-divided signal is compared with the phase of a reference frequency signal.  A phase-compared signal is integrated and the integrated signal is applied to the voltage-controlled oscillator.  A D/A converter swallow counter and a D/A converter counter are operable with the binary programmable frequency divider for D/A-converting a signal derived from the frequency signal into a pulse-width-modulated signal corresponding to the phase-compared signal at a preset count ranging from 0 to 2M - 1.
Patent CA-2013075-A1 (CA)
Inventor: FOCKE HEINZ
IPC: B31B50/44
Filed: 1990-03-26
Abstract: Abstract: (in conjunction with Figure 5) 1.      Process  and  apparatus  for  the  production  of (cigarette) packs. 2.1.    In the production of (cigarette) packs of the hinge-lid type, supplying a sufficient amount of material to the packaging machine presents a particular problem. In an advantageous solution, blanks (20) for producing the packs are severed from a continuous web of material (24) with punchings for delimiting the blanks (20) and further processed within the packaging machine. 2.2.    For  the  efficient  production  of  (individual) blanks from the continuous web of material  (24), the latter is fed to a blank station (26), in which prefer-ably two respective blanks (20a, 20b) lying next to one another are severed by shearing from the following web of material (24) and from one another by means of severing rams  (29).  The two blanks  (20a,  20b)  so formed and individually separated are then fed to a folding turret (40),  specifically appropriately with an intermediate conveyor in the form of a rotating blank turret (43) being interposed. 2.3.    The blank turret (43) is appropriately designed so that by means of rams (45, 46) movable in the radial direction or downwards the blanks are lifted off from the blank turret (43) and, at the same time being partially folded, can be introduced into turret pockets (41, 42) of the folding turret (40).
Patent CA-2013081-A1 (CA)
Inventor: HEMPHILL RAYMOND M
IPC: C22C38/52
Filed: 1990-03-26
Abstract: A high strength, high fracture toughness structural steel alloy consisting essentially of, in weight percent, about C         0.2-0.33 Cr        2-4 Ni        10.5-15 Mo        0.75-1.75 Co        8-17 Fe  Balance and an article made therefrom are disclosed.  The alloy is an age-hardenable martensitic steel alloy which provides a unique combination of tensile strength and fracture toughness.  The alloy provides excellent mechanical properties when hardened by vacuum heat treatment with inert gas cooling and has a low ductile-to-brittle transition temperature.
Patent CA-2018182-A1 (CA)
Inventor: MIYAZAKI MASAYA
IPC: G06F9/38
Filed: 1990-06-04
Abstract: ABSTRACT OF THE DISCLOSURE           A data processor comprises a high-speed storage for storing data of a stack area, a first pointer for indicating a mapping position in the high-speed storage showing an address indicated by a stack pointer, a second pointer for indicating a mapping position in the high-speed storage showing an address indicated by a frame pointer, an arithmetic unit for operating a displacement designated by each instruction and the first and second pointers, and an update unit for updating the first pointer provided separately from an update unit for updating the stack pointer upon execution of a PUSH or POP instruction.  Instructions for accessing data using the displacement from the stack pointer or the frame pointer, together with the PUSH and POP instructions are executed at a high speed.
Patent CA-2019853-A1 (CA)
Inventor: DOWN FRANCIS I
IPC: B65B11/00
Filed: 1990-06-26
Abstract: ABSTRACT     Apparatus for pre-stretching wrapping film (33) includes an assembly of rotating arms (35) mounted on a fixed shaft (22).  The arms (35) are driven by a wheel (39) which is rotated about an axis (49) off-set from the axis of the fixed shaft (22).  Rollers (46) connect the wheel (39) to an adjustable guide ring (34) and rollers (47) run in a channel (48) in the lower face of the lower brace (29) of the arm (35).  As the wheel (39) is rotated about its axis, the arms (25) rotate about fixed shaft (22) so that the included angle between adjacent arms 25 increases and decreases cyclically so that the linear speed of the film (33) will be increased so as to stretch the film as it passes around the assembly of rotating arms.
Patent CA-2020347-A1 (CA)
Title: Blade guard
Inventor: LONGWORTH FRED A
IPC: B26D7/22
Filed: 1990-07-03
Abstract: A guard for teeth on a cutting blade comprising a guard portion having a side part adapted to lay along one side of the teeth and a projecting part adapted to project past the points of the teeth, an anchor portion adapted to be fixed to the blade at a position spaced from the teeth, and a hinge portion of resiliently flexible polymeric material joining the guard and anchor portions. The hinge portion affords movement of the guard portion relative to the anchor portion from a normal protecting position along and projecting past the teeth, to a cut position spaced from the teeth so that the teeth can be used to cut material, while biasing the guard portion to its normal protecting position.
Patent CA-2024275-A1 (CA)
Title: Tampon for medical or hygienic purposes and method of making the same
Inventor: KUBICKI JORN
IPC: A61F13/20
Filed: 1990-08-29
Abstract: A rod-shaped tampon includes a tampon core of compressed fibers; a tampon cover surrounding the tampon core and comprising a hardened collagen or gelatine foam impregnated with an active substance; and a retrieval string.
Patent CA-2025074-A1 (CA)
Title: Versatile, overpressure proof, absolute pressure sensor
Inventor: BONNE ULRICH
IPC: G01L9/04
Filed: 1990-09-11
Abstract: A non membrane-based overpressure proof gas pressure microsensor. Since it is not a membrane-based microsensor but is based on an open microbridge sensor structure (Fig. 8); it is not subject to breakage caused by overpressure. A method is described to determine gas pressure from thermal conductivity, k, and volumetric specific heat, C pv.
Patent CA-2026615-A1 (CA)
Title: Traction wheel for center pivots and the like
Inventor: BOCKERMAN BERNARD J
IPC: B60B15/02
Filed: 1990-10-01
Abstract: Abstract of the Disclosure A traction wheel adapted to be mounted on an irrigation tower includes a pair of axially spaced apart annular rims having ground engagement   surfaces which are inclined radially and axially inwardly toward one another. A plurality of wedge shaped lugs. interconnect the rims, which lugs are circumferentially spaced apart to form openings between the rims and lugs. Several of the lugs have one side extended radially inwardly of the rims to serve as a spoke. The inner ends of the spokes are connected to a hub suitable for mounting the wheel on an axle assembly.
Patent CA-2028096-A1 (CA)
Title: Derivatives of taxol, pharmaceutical compositions thereof and methods for the preparation thereof
Inventor: STELLA VALENTINO J
IPC: A61K31/435
Filed: 1990-03-09
Abstract: 2028096 9010443 PCTABScor01 Derivatives of taxol represented by formula, (II) wherein R and R' are each H or the residue of an amino acid selected from the group consisting of alanine, leucine, isoleucine, saline, phenylalanine, proline, lysine and arginine or a group of formula (III), wherein n is an integer of 1 to 3 and R2 and R3 are each hydrogen on an alkyl radical having from one to three carbon atoms or wherein R2 and R3 together with the nitrogen atom to which they are attached form a saturated heterocyclic ring having four to five carbon atoms, with the proviso that at least one of R and R1 is not hydrogen, are provided together with pharmaceutical compositions of such derivatives. The taxol derivatives have increased water solubility as compared to taxol, and have excellent antitumor activity.
Patent CA-2029589-A1 (CA)
Title: Photographic material and process comprising a pyrazolotriazole coupler
Inventor: BURNS PAUL A
IPC: G03C7/38
Filed: 1990-11-08
Abstract: PHOTOGRAPHIC MATERIAL AND PROCESS COMPRISING A PYRAZOLOTRIAZOLE COUPLER      Abstract of the Disclosure A pyrazolotriazole dye-forming coupler containing on a carbon atom in a non-coupling position a ballast group derived from and bonded through a carboxylic acid portion of an unsubstituted or substituted amino acid provides useful magenta dye images in a photographic material and process and enables simplification of manufacture of the coupler.  Such couplers are useful in photographic silver halide materials and processes.
Patent CA-2030004-A1 (CA)
Title: Tetrahydronaphthalene derivatives and preparation thereof
Inventor: NAKAI HIDEO
IPC: C07C311/07
Filed: 1990-11-14
Abstract: Abstract The present invention is directed to a tetrahydronaphthalene derivative of the formula:                                   (I) wherein R1 is a substituted or unsubstituted phenyl group, a naphthyl group, a sulfur- or nitrogen-containing heterocyclic group, a lower alkyl group or cycloalkyl group, and R2 is a hydroxymethyl group, a carboxyl group, a lower alkoxycarbonyl group or a group of the formula:   wherein R3 is a hydrogen atom or a lower alkyl group, R4 is a lower alkoxycarbonyl-phenyl group, a carboxy-phenyl group, a lower alkyl group, a lower alkoxycarbonyl-lower alkyl group or a carboxy-lower alkyl group, and m and n are different and are integers of 1 or 2, or a pharmaceutically acceptable salt thereof.  The derivatives of the present invention are useful as platelet aggregation-inhibiting agents and as agents for the treatment, amelioration and/or prophylaxis of a variety of thrombosis or embolism, coronary and cerebral vascular smooth muscle vellication, asthma, and the like.  The invention is further directed to processes for the preparation of the derivatives, and to pharmaceutical compositions containing the derivatives as an active ingredient.
Patent CA-2032727-A1 (CA)
Title: Cellular telephone filter
Inventor: PRAMANICK PROTAP
IPC: H03H7/01
Filed: 1990-12-19
Abstract: ABSTRACT            A microstripline planar filter has two substrates, the first substrate having a high dielectric constant and a low loss and the second substrate being either air or ceramic of high dielectric constant and low loss.  The two substrates together produce a very high average dielectric constant of the medium resulting in an ultrashort resonator length and an overall small filter size.  The microstripline is printed on the first substrate with a strip thickness chosen to give a very high unloaded Q.  The filter has an input and output with wide impedance lines at input and output tapping points.  The impedance lines are fourteen ohms and are printed inductors.  The filter is particularly suitable in cellular telephones.  Since the filter is much smaller than previous filters, telephones made using the filter can also be made much smaller.
Patent CA-2034629-A1 (CA)
Inventor: NILSSON RICHARD C
IPC: G02B6/44
Filed: 1991-01-21
Abstract: ABSTRACT OF THE DISCLOSURE      The optical fiber cable has a plurality of centrally located optical fibers.  Carrying the optical fibers is a gel-filled plastic buffer tube.  A plurality of radial strength yarn threads extend along the outside of the buffer tube in a contra-helical pattern.  In the armored cable embodiment, a strength and protective member in the form of a corrugated steel armor layer may be provided for additional protection against possible rodent damage.  The armor is usually coated with a thin layer of plastic material in the form of a water blockable flooding compound.  A ripcord is provided to assist in removal of the armor.  A final polyethylene outer jacket is provided for additional cable protection.  Embedded within the outer jacket is a pair of diametrically opposed, longitudinally extending strength members.
Patent CA-2036543-A1 (CA)
Title: Liquid recycling system
Inventor: MESHEAU JOHN S
IPC: B01D21/00
Filed: 1991-02-18
Abstract: LIQUID RECYCLING SYSTEM ABSTRACT OF THE DISCLOSURE An apparatus and method is disclosed for recycling contaminated industrial liquids. In the preferred embodiment, a conventional, medium-sized "van" type of truck houses, transports and powers a dual-loop assembly.  A filter-loop assembly receives and stores recycling liquid in a waste liquid holding tank.  The liquid is pumped through a pasteurizing heater and a separating centrifuge and back to the tank.  Filter-test valves in the filter-loop enable testing to determine desired heating and separation.         When flow-rate adjustments produce satisfactory heating and separation, the recycling liquid is directed through a cooler, out of the filter-loop and into an additive-loop assembly where the liquid is pumped from a clean liquid holding tank, by additive compound injections, and back to the clean tank.  Additive-test valves in the additive-loop enable testing to determine required quantities of specific additive compounds.  When tests indicate satisfactory levels of the compounds, the recycling liquid is directed out of the additive-loop assembly and out of the system. The filter and additive test valves enable periodic testing during recycling to insure consistency.   If the recycling becomes inadequate, the filter-loop and/or additive-loop is closed until changes in the flow-rate or additive injection rates again produce satisfactory recycling.
Patent CA-2037464-A1 (CA)
Inventor: SHAW DOUGLAS A
IPC: B03D1/018
Filed: 1991-03-04
Abstract: The invention resides in the use of a bacterial cellulose as a depressant for readily flotatable silicate minerals in an ore flotation process. Depending on the particular ore being treated, from 0.2-1.5 lb/ton of ore of the bacterial cellulose is effective as a talcose mineral depressant. Usually only about 0.10-0.25 lb/ton of the bacterial cellulose will produce optimum results.
Patent CA-2037699-A1 (CA)
Title: Protective edging strip and method of applying the same
Inventor: HEINZE MICHAEL D
IPC: A42B3/10
Filed: 1991-03-07
Abstract: PROTECTIVE EDGING STRIP AND METHOD OF APPLYING THE SAME           Abstract of the Disclosure The present invention has an elongated edging strip with a pair of legs.  At least one leg has an adhesive member within the channel defined by the legs.  Also, at least one hinge is provided on the strip.  The strip is positioned onto the edge of an element to be protected or covered and is adhesively secured thereto.
Patent CA-2038519-A1 (CA)
Title: Basic switching unit for an apparatus used to shuffle digital streams which have been multiplexed by time division of digital tributaries at different rates
Inventor: GUINAND JACQUES
IPC: H04J3/16
Filed: 1991-03-18
Abstract: This elementary switching unit includes, for each incoming frame transmission medium: 
 
  - means of extracting signals consisting of multiplexing units to be cross-connected from the incoming frames, 
  - a memory (1), referred to as the memory for signals consisting of multiplexing units to be cross-connected, and which is able to hold at least N signals, where N denotes the period of the stream of lowest bit rate of the multiplexing hierarchy, 
  - means (2, 3) for ensuring writing of this memory, in synchronism with the extraction rate, to distinct addresses in respect of signals constituting distinct multiplexing units to be cross-connected, and to identical addresses in respect of signals constituting a same multiplexing unit to be cross-connected, the frequency of rewriting of each address being related to the period of repetition of the signals written to this address, 
  - means (20, 21, 22) for ensuring reading of this memory, in synchronism with the rate of insertion into the outgoing frames of signals constituting multiplexing units to be cross-connected, at addresses determined by the said distribution law. 
 
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Patent CA-2042004-A1 (CA)
Title: Process for the production of isocyanurate polyisocyanates, the compounds obtained by this process and their use
Inventor: PEDAIN JOSEF
IPC: C07D251/34
Filed: 1991-05-07
Abstract: The present invention relates to a process for the production of isocyanurate group-containing polyisocyanates by partially trimerizing the isocyanate groups of (cyclo)aliphatic diisocyanates in the presence of catalysts which accelerate the trimerization of isocyanate groups and optionally in the presence of an inert solvent, terminating the trimerization reaction at the desired degree of trimerization and removing unreacted starting diisocyanate and any other volatile constituents, characterized in that at least one monohydric alcohol containing ester groups corresponding to the formula   is added to the reaction mixture prior to removing the excess starting diisocyanate in a quantity of 1 to 30% by weight, based on the weight of the diisocyanate starting material, and reacted with a portion of the isocyanate groups to form urethane groups, provided that after the trimerization and urethanization reactions, the reaction mixture contains at least 10% by weight of unreacted starting diisocyanate, based on the weight of the reaction mixture excluding the weight of inert solvent.     The present invention also relates to the isocyanurate polyisocyanates obtained by this process and to their use, optionally after blocking with blocking agents for isocyanate groups, for the production of polyurethane plastics and, more particularly, two-component polyurethane coating compositions.
Patent CA-2044210-A1 (CA)
Title: Compositions containing nitroaniline dyes having a carbamide substituent group
Inventor: ANDERSON JAMES S
IPC: C07C237/32
Filed: 1991-06-10
Abstract: The novel hair dye compositions containing a compound of the formula: (See formula I) wherein R1, R2, R3 and R4 which may be identical or different, are hydrogen, alkyl, hydroxyalkyl, polyhydroxyalkyl, alkoxyalkyl, hydroxyalkoxyalkyl aminoalkyl and dialkylaminoalkyl, each alkyl group and each alkoxy group having from about 1 to about 6 carbons and R5 is hydrogen or alkyl containing from about 1 to about 6 carbon atoms are disclosed. More specifically, the present invention concerns the inclusion of such compounds of formula I in hair dye compositions as direct dyes, and especially the novel compound 4-(2-hydroxyethylamino)- 3-nitrobenzamide.      The compounds, some of which are novel, provide a yellow dye base for the hair dyeing compositions.
Patent CA-2044973-A1 (CA)
Title: Process for the preparation of steroids bearing 17.alpha. hydroxy-20-oxopregnane side chain
Inventor: TORO ANDRAS
IPC: C07J7/00
Filed: 1991-06-19
Abstract: NOVEL PROCESS FOR THE PREPARATION OF STEROIDS BEARING          17?-HYDROXY-20-OXOPREGNANE SIDE CHAIN                   A B S T R A C T    The invention relates to a novel process for the preparation of 17?-hydroxy-20-oxopregnane derivatives of the general formu-la (I),      (I) wherein R1 means a hydroxy  or an oxo group; and the dotted lines optionally represent one or more additional valence bond(s), from steroids having 23,24-dinor-17(20)-dehydro-cholan-22-oic acid structure.  According to the process of the invention a steroid deriva-tive having 23,24-dinorcholan-22-oic acid structure, containing a double bond in 17(20)-position, is transformed to 17?,20-epoxy-23,24-dinorcholanoic acid, the latter     is converted to a re-active acid derivative, which is then reacted with a salt-con-taining azide ion to yield a 17?,20-epoxy-23,24-dinorcholanoic acyl azide derivative and the azide obtained is reacted with a mineral or organic acid in an aqueous medium.
Patent CA-2046433-A1 (CA)
Title: Vehicule a propulseurs motorises
Inventor: CLAR GEORGES
IPC: B62D55/116
Filed: 1991-07-08
Abstract: : Véhicule à propulseurs motorisés Un moyeu tubulaire à axe transversal (24) lie chaque propulseur allongé(4) au corps du véhicule (2). Il fournit des signaux représentatifs des efforts qu'il transmet. Un moteur d'inclinaison (22) de ce propulseur prend appui sur ce moyeu pour incliner ce propulseur autour de cet axe transversal. Conformément à l'invention, un moteur d'avance est disposé selon cet axe. L'invention s'applique notamment à des interventions dans des milieux nocifs pour l'homme. FIGURE A PUBLIER : Fig. 3
Patent CA-2046783-A1 (CA)
Title: Cellulose solution in water and nmmo
Inventor: ASTEGGER STEPHAN
IPC: C08J3/09
Filed: 1991-07-11
Abstract: ABSTRACT OF THE DISCLOSURE             A solution of cellulose in water and N-methylmorpholine-N--oxide (NMMO) is stabilized at 0.01 to 1 %, preferably 0.1 % H202 and 0.01 to 2 %, preferably 0.1 % of an H202 stabilizer, preferably oxalic acid or a salt thereof during formation of the solution and during heating to prevent discoloration of the cellulose and reduce the composition of NMMO.
Patent CA-2047153-A1 (CA)
Inventor: GRUBERT HEINRICH
IPC: C08F14/06
Filed: 1991-07-16
Abstract: O.Z. 0050/41788 Abstract of the Disclosure: Aqueous polymer dispersions are obtainable by polymerizing a monomer mixture which contains  from  10  to  100 %  by weight of  halogenated monomers by radical emulsion polymerization in aqueous medium, adjusting the pH of the aqueous phase of the resulting aqueous polymer dispersion to from 5 to 10 by addition of bases which differ from ammonia and from primary and secondary amines, and adding from 0.005 to 1 % of the weight of the monomer mixture of one or more substances from the group comprising glycerol, pivalic acid,  paraldehyde,  2,6-di-tert-butyl-p-cresol,  benzo-phenone,  alkyl-substituted benzophenones,  thiosulfuric acid and salts thereof, and oxalic acid and salts there-of, it being possible to add both the bases and the one or more  substances  before, during  and/or  after  the emulsion polymerization.
Patent CA-2049329-A1 (CA)
Title: Device for moving balled seedlings to the ground
Inventor: MURMANN KIM
IPC: A01C/
Filed: 1991-01-21
Abstract: (57) Abstract The invention relates to equipment and method for trans-ferring balled seedlings into substrate. According to the in-vention the plant is moved down-wards in a plant cup (1), in which there are walls (3) side-wards flexible, which walls after having yielded sidewards let the plants go through the cup.
Patent CA-2049511-A1 (CA)
Inventor: HAGIWARA ZENJI
IPC: A01N61/00
Filed: 1991-08-20
Abstract: A silica gel based heat-resistant and weatherproof antimicrobial composition having an aluminosilicate layer on the surfaces of pores in the silica gel as substituted by silver and an optional antimicrobial metal, said composition containing ion-exchangeable metals that are chiefly an alkali metal and that are present in an amount of up to 2.57 mmol per gram of said composition on an anhydrous basis.
Patent CA-2051880-A1 (CA)
Title: Automatic frequency control system and method for frequency-shift-key data transmission systems
Inventor: WEEKS RICHARD W
IPC: H04L27/16
Filed: 1991-09-19
Abstract: ABSTRACT OF THE DISCLOSURE      The present invention provides a system and method of automatic frequency control (AFC) in a frequency-shift-key (FSK) data transmission system that allows a receiver to be used that has a bandwidth that approaches the requisite minimum bandwidth for a given data transmission rate and produces a substantial signal noise ratio (SNR)  in the detected signal by the receiver. The invention includes a transmitter that outputs a SPACE signal and a MARK signal in a preamble that precedes the transmission data.  The apparatus also includes a receiver that uses the SPACE and MARK signals to adjust the frequency of the signal output by a voltage-controlled-oscillator  (VCO)  to tune the receiver and thereby improve the signal-to-noise ratio (SNR)  in  the  signals  subsequently  detected  by  the receiver.