baber/WOPTO huggingface dataset:
Patent CA-1283953-C (CA)
Title: Internal drum plotter
Inventor: NAGLER MICHAEL
IPC: G06K15/22
Filed: 1987-10-07
Granted: 1991-05-07
Abstract: ABSTRACT     An  internal  drum plotter including a laser source  producing  a laser beam output, apparatus for modulating the laser beam output to  apply information content thereto,  apparatus for  supporting laser  recording  material  in a generally  circular  cylindrical configuration  about a cylinder axis and scanning  apparatus  for receiving  the  modulated laser beam and reflecting it  onto  the laser  recording  material,  the scanning apparatus  including  a stabilized  reflector  arranged for rotation about  the  cylinder axis  for  reflecting the modulated laser beam directly onto  the laser  recording material,  wherein the stabilized  reflector  is insensitive  to  wobble  in the position  thereof  in  directions perpendicular to the cylinder axis.
Patent CA-1291529-C (CA)
Inventor: NUNS JACQUES
IPC: H05B6/06
Filed: 1987-12-02
Granted: 1991-10-29
Abstract: BREVET D'INVENTION "SYSTEME DE REGULATION D'UN GENERATEUR ONDULEUR A COMMUTATEURS ALIMENTANT UNE CHARGE PAR INDUCTION" Invention : Jacques NUNS ELECTRICITE DE FRANCE (SERVICE NATIONAL) L'invention concerne un système de régulation d'un générateur onduleur à commutateurs alimentant une charge par induction. La charge présente l'impédance d'un circuit résonnant série R,L,C et est monté en série avec la sortie de l'onduleur, par l'intermédiaire d'au moins deux interrupteurs, dont les bornes de commutation sont connectées en parallèle avec une diode. Le système comprend une boucle d'asservissement en fréquence de la tension d'alimentation délivrée par l'onduleur à une fréquence voisine de la fréquence propre de la charge variable en fonction de l'état magnétique de la charge, cette boucle constituant boucle rapide. Une deuxième boucle de régulation en fonction du niveau de puissance ou du niveau de tension d'alimentation de l'onduleur est également prévue, cette boucle constituant une boucle dite lente. Application à la régulation de fours à induction industriels. Figure 6
Patent CA-1295689-C (CA)
Inventor: DULEY WALTER W
IPC: B23K26/00
Filed: 1988-01-14
Granted: 1992-02-11
Abstract: A B S T R A C T         A method is described of enhancing the efficiency of laser processing of metals using a first last operating at a first wavelength by preprocessing with a second laser so as to define a track of reduced reflectivity.  This is achieved by establishing areas on the metal surface to be worked and irradiating the areas with the second laser operating at a second and different wavelength from the first wavelength.  The second laser is chosen to exhibit a significantly reduced reflectivity at the surface of the metal compared with the first wavelength. This decreases reflectivity of the surface to radiation of the first wavelength to improve efficiency of subsequent working by the first laser in the areas.
Patent CA-1282811-C (CA)
Inventor: SUICA DAVID E
IPC: B25J17/02
Filed: 1988-02-10
Granted: 1991-04-09
Abstract: ABSTRACT OF THE DISCLOSURE     An  improved  robotic  manipulator  of  the  type  having  a plurality  of  serially-connected drive  shafts  and  a  mounting surface  affixed  to one  end  thereof.   The manipulator includes a first  shaft  rotatable  about  a  first  axis  coincident  with  one ordinate  of  a  mutually  perpendicular  triordinate  system  and  a first  housing  rotatable  about  that  first  axis,  a second  shaft rotatably mounted to said first shaft for rotation about a second axis  obliquely  oriented  with  respect  to  said  first  axis and  a second  housing  rotatable  on the  first  housing  about  the  second axis.   Rotational movement  is imparted  to the second shaft about the second axis in accordance with rotational movement of a shaft rotatable  about  the  first  axis.     A  mounting  surface  has a centerline  angularly  oriented with  respect  to  the  second  shaft, and a third shaft upon which the mounting surface is attached is rotatable  about a  third  axis  angularly oriented with respect  to the  second  axis.   An  axis  bearing cylinder  is  substantially immovably  mounted  on  the  second  housing  parallel  to  the  second axis, with such axis bearing cylinder extending partially inwardly into the first housing and providing support for a gear cluster arrangement substantially independent of the first housing.   This arrangement  produces  a  stiffer  drive train,   helps  control backlash, and simplifies assembly.
Patent CA-1302389-C (CA)
Title: Jack and components therefor
Inventor: GRUBER RUDOLF
IPC: B66F3/12
Filed: 1988-02-11
Granted: 1992-06-02
Abstract: ABSTRACT             An improved jack comprising a lead screw having a driven end and an upstanding integral boss proximate the driven end, the driven end comprising a body abutting the upstanding boss and including an opening therethrough for receiving the end of the lead screw, the body carrying slots, grooves or recesses radiating from the opening and being in communication with the opening and carrying material from the lead screw displaced into the grooves thereby securing the body to the lead screw.
Patent CA-1332645-C (CA)
Title: Methode de preparation de polyurethanes et composant stable au stockage pour polyurethanes
Inventor: VANDERMEERSCH JEAN
IPC: H01B3/30
Filed: 1988-02-18
Granted: 1994-10-18
Abstract: L'invention  concerne  une  méthode  de  préparation  de polyuréthanes exempts d'inclusion gazeuse, par mélange de deux  composants  séparément  conservables  sans  variation importante  de  réactivité,  caractérisée  en ce  que  le composant  renfermant  le  réactif  hydroxylé  contient  un déshydratant constitué par une  zéolite dont  la formule générale est, sous forme anhydre: a Na2 O . b K2O . c M O . Al2 O3 . m Si O2 où b est un nombre compris entre 0,1 et 0,5, c est un nombre compris entre 0,1 et 0,5; où a est un nombre tel que l'on ait a + b + c = 1; où m est un nombre compris entre 1,35 et 2,35;  où  M  représente  le  calcium  ou  le  magnésium. L'invention  concerne  également  un  composant  stable  au stockage, pour polyuréthanes exempts d'inclusion gazeuse, constitué d'au moins un réactif organique polyhydrolylé et un déshydratant, caractérisé en ce que le déshydratant est un zéolite dont la formule générale est,  sous sa forme anhydre: a Na2 O . b K2O . c M O . Al2 O3 . m Si O2 où b est un nombre compris entre 0,1 et 0,5, c est un nombre compris entre 0,1 et 0,5; où a est un nombre tel que l'on ait a + b + c = 1; où m est un nombre compris entre 1,35 et 2,35; où M représente le calcium ou le magnésium.
Patent CA-1292089-C (CA)
Title: Apparatus using two-mode optical waveguide with non- circular core
Inventor: KIM BYOUNG Y
IPC: G02B6/02
Filed: 1988-02-19
Granted: 1991-11-12
Abstract: APPARATUS USING TWO-MODE OPTICAL WAVEGUIDE WITH  NON-CIRCULAR CORE   An apparatus  utilizes  a two-mode optical waveguide with  a  non-circular  core  to  provide  stable  spatial intensity patterns  in both propagation modes  for light propagating therein.  The light has a wavelength, and the non-circular core has cross-sectional dimensions selected such  that  (1)  the waveguide  propagates  light  at  that wavelength in a fundamental mode and a higher order mode, and (2) substantially all of the light in the higher order mode  propagates  in  only  a single,  stable  intensity pattern.    Embodiments  of  the  invention  include,  for example,   modal   couplers,   frequency   shifters,  mode selectors, and interferometers.  One of the interferometer embodiments may be used as a strain gauge.     UA3-996:ns/cc3
Patent CA-1318378-C (CA)
Inventor: AGARWAL PAUL D
IPC: B60T8/42
Filed: 1988-04-20
Granted: 1993-05-25
Abstract: DC TORQUE MOTOR ACTUATED ANTI-LOCK BRAKE CONTROLLER           Abstract of the Disclosure A wheel lock control system is described for a wheel braking system that includes a motor driven actuator for applying controlled hydraulic brake pressure to the wheel brake that is determined by motor current.  The motor current corresponding to the brake pressure producing the maximum possible braking effort during each brake pressure application is identified and a value related thereto is reapplied to the motor after an incipient wheel lockup condition is sensed.
Patent CA-1313617-C (CA)
Title: Compositions for therapeutic percutaneous embolization and the use thereof
Inventor: BALAZS ENDRE A
IPC: A61K47/36
Filed: 1988-04-28
Granted: 1993-02-16
Abstract: ABSTRACT OF THE DISCLOSURE      Percutaneous  emboli  are  formed  for therapeutic and/or corrective reasons by using a composition which includes cross-linked gels of hyaluronic acid (HA) hylan (HY) or mixed cross-linked gels of HA or HY with other materials, thrombin  and  cationic  substances  containing quaternary  ammonium  groups.    Other  optional materials  include  fillers  and  radio-opaque substances.
Patent CA-1310472-C (CA)
Title: Process for the production of ultra high purity polycrystalline silicon
Inventor: BRENEMAN WILLIAM C
IPC: C01B33/035
Filed: 1988-06-10
Granted: 1992-11-24
Abstract: AN IMPROVED PROCESS AND APPARATUS FOR THE      PRODUCTION OF ULTRA HIGH PURITY     POLYCRYSTALLINE SILICON            ABSTRACT OF THE DISCLOSURE      The  present  invention  is directed to an  improved  process  for  producing  ultra high purity   polycrystalline  silicon  which  process provides  for  increased  production capacity and electrical   power   efficiency.     The  process comprises  recycling  the  exhaust  gases  of the silane  pyrolysis  reactor  after  the gases have been   preferably   first   cooled  and  filtered utilizing  a  pocket-type reaction zone enclosure having  a  particular  effective  radius  thereby effectively  decreasing  the  amount  of  silicon powder   formation.    Preferably,  the  rate  of recycle  flow  is  sufficient  to entrain silicon powder  in the reactor and remove the powder from the reactor with the exiting exhaust gases.
Patent CA-1312200-C (CA)
Title: Downrigger control board
Inventor: SKILLE GENE L
IPC: A01K91/08
Filed: 1988-06-20
Granted: 1993-01-05
Abstract: .     ABSTRACT OF THE DISCLOSURE    A  downrigger  control  board  having  a  substantially planar body with a curved tail portion for guiding the board through the water and including a mast mounted on the  body  at  a predetermined  location  between  a  nose portion and tail portion of the body and with a cross arm mounted on the mast to engage a downrigger cable to guide the downrigger cable away from the side of a fishing boat as  the  fishing boat drags a weighted downrigger cable through the water with an attached fishing line.
Patent CA-1336910-C (CA)
Inventor: VAN DOORN JOHANNES ADRIANUS
IPC: B01J31/24
Filed: 1988-08-22
Granted: 1995-09-05
Abstract: Catalytic compositions comprising (a)  a palladium compound, (b)  an anion of an acid having a pKa of less than 6, and (c)  a diphosphine of the general formula R9R10P-R-PR11R12, wherein R9 to R12 stand for carbocyclic hydrocarbyl groups or heteroaromatic substituents and R represents a bridging group containing at least one carbon atom in the bridge, with the proviso that at least one of R9 to R12 is a heteroaromatic substituent. The heteroaromatic substituent should contain one or more O, S and/or N-atoms in a five or six-membered ring, which ring is bound to the P-atom by a carbon ring-atom. The catalysts are active in the preparation of linear alternating polyketones.
Patent CA-1334349-C (CA)
Inventor: KATOH KAZUNOBU
IPC: G03C1/06
Filed: 1988-11-01
Granted: 1995-02-14
Abstract: A  negative  type  silver  halide  photographic material comprising a support having thereon at least one silver halide emulsion layer, wherein the silver halide emulsion  layer  or  another  hydrophilic  colloid  layer provided  on  the  support  contains  (1)  a  compound represented  by  formula  (I)  having  substantially  no absorption maximum in the visible region of the spectrum and (2) a hydrazine compound represented by formula (II):                               (I) (X0)n wherein Z11  and Z12 each represents a non-metallic atomic group completing a benzoxazole nucleus,  a benzothiazole nucleus,  a  benzoselenazole  nucleus,  a  naphthoxazole nucleus,  a naphthothiazole nucleus,  a  naphthoselenazole nucleus,  a  thiazole  nucleus,  a  thiazoline  nucleus,  an oxazole  nucleus,  a  selenazole  nucleus,  a  selenazoline nucleus, a pyridine nucleus, a benzimidazole nucleus, or a quinoline  nucleus;  R11  and  R12  each  represents  an unsubstituted or substituted alkyl group, at least one of said R11 and R12 having an acid group;  Xo represents a charge balancing ion; and n represents 0 or 1;           (II) wherein A1 and A2 each represents a hydrogen atom, or one of said A1 and A2 represents a hydrogen atom and the other represents a sulfinic acid group or an acyl group;  R1 represents an aliphatic group,  an aromatic group,  or a heterocyclic  group;  R2  represents  a  hydrogen  atom,  an alkyl group, an aryl group, an alkoxy group, an aryloxy group, or an amino group; at least one of R1 and R2 has an adsorption  accelerating  group  with  respect  to  silver halide;  and G1 represents a carbonyl group,  a sulfonyl group,  a  sulfoxy  group,  a  phosphoryl  group,  or  an iminomethylene group.
Patent CA-1296435-C (CA)
Inventor: DELEY SERGE
IPC: A47C31/02
Filed: 1988-11-14
Granted: 1992-02-25
Abstract: Fixing device for a covering, especially a covering of a seat ABSTRACT Fixing device for a covering (9), especially a covering of a seat, comprising on the one hand a profiled section (1) having longitudinal slots (15), and on the other hand an edging wire (17, 17a) bent at at least two places to form fasteners (19, 19a) intended to cooperate with the slots, the fasteners (19, 19a) lying generally in a plane inclined to the axis of the edging wire (17, 17a) and being capable of deforming by twisting during their entry into a slot (15) in the profiled section, but resiliently recovering their initial shape and their in-clined position after this insertion.     Fig. 2.
Patent CA-1306249-C (CA)
Title: Tylosin derivatives and processes for producing the same
Inventor: YOSHIOKA TAKEO
IPC: C07H17/08
Filed: 1988-11-22
Granted: 1992-08-11
Abstract: ABSTRACT OF THE DISCLOSURE:           Tylosin derivatives represented by the following general formula (I):       (I) [wherein R denotes a hydrogen atom, acetyl, propionyl or a radical of Si(R2)3 (in which R2 is a lower alkyl group); with the proviso that, when R1 is hydrogen, R is not Si(R2)3 and R1 stands for a hydrogen atom or a radical of Si(R2)3] are novel compounds, which are useful as intermediates for the synthesis of 4"-acyl derivatives of tylosin because, after introduction of any desired acyl group at the 4"-hydroxyl group,  the silyl protective group can be readily removed without  liberation of said acyl group.   This invention also provides processes for producing said tylosin derivatives.  More specifically, it provides a method of selectively  protecting  2'- and  4"'-hydroxyl  groups  of tylosin (those of higher reactivity among the hydroxyl groups involved):  a method of selectively protecting only the 4"'-hydroxyl group of tylosin;  a method of selectively protecting the  3- and  4"'-hydroxyl  groups  of  2'-0-acyltylosin: and a method of protecting 3-, 2'- and 4"'-hydroxyl groups of tylosin.
Patent CA-1311323-C (CA)
Inventor: HE XIONGWEI
IPC: C08L83/06
Filed: 1988-12-30
Granted: 1992-12-08
Abstract: 22 MAT?RIAU POLYM?RE ? RESEAUX INTERP?N?TR?S POLYSILOXANEPOLYACRYLIQUE, SON PROC?D? DE FABRICATION, ET ARTICLES MOUL?S OBTENUS. Le réseau polysiloxane (1) de ce matériau polymère est formé par (1a) au moins un polydiméthylsiloxane .alpha.,.omega.-dihydroxylé et/ou un poly(diméthyldiphényl)siloxane .alpha.,.omega.-dihydroxylé ayant au moins 70% de motifs diméthylsiloxane ; (1b) un agent de réticulation et/ou un agent de pontage assurant la réticulation ainsi qu'une liaison entre les réseaux ; éventuellement (1c) un catalyseur de polycondensation. Le réseau acrylique (2) est formé par (2a) au moins un monomére (méth)acrylique ne comportant pas de groupe fonctionnel hydrophile ; éventuellement (2b) un agent de réticulation et (2c) un initiateur de polymérisation radicalaire. Le mélange de polymérisation contient tous ces constituants, et suffisamment d'un inhibiteur de formation de radicaux libres pour empêcher au départ l'initiateur (2c) de produire des radicaux qui, combinés au catalyseur (1c), annihileraient les propriétés catalystiques de celui-ci, pour former le réseau (1) avant le réseau (2). Application : fabrication d'articles de toutes formes.
Patent CA-1307540-C (CA)
Inventor: HIRATSUKA MITSUNORI
IPC: C07C323/22
Filed: 1989-01-05
Granted: 1992-09-15
Abstract: ABSTRACT OF THE DISCLOSURE:         Compounds of the present invention are represented by the formula,   wherein X represents a lower alkyl, lower alkoxy, lower haloalkyl or lower haloalkoxy group or a halogen atom, and R1 and R2, which may be the same or different, represent a hydrogen atom or a methyl group.  They are useful intermediates for preparing herbicidal compounds.
Patent CA-1314850-C (CA)
Title: Device for bypassing heat exchange flow conduits
Inventor: VEACH JACK R
IPC: F01P7/16
Filed: 1989-01-11
Granted: 1993-03-23
Abstract: ABSTRACT A system for controlling the heating of diesel fuel in a fuel tank of a diesel engine system to prevent diesel engine control electronics damage.  The system is operable to bypass heat exchange medium flow at prede-termined temperature ranges to prevent further heating of diesel fuel in a diesel fuel reservoir tank by the heat exchange medium.  More particularly, this mechani-cally  operated  system  permits  identical  temperature control means for controlling various  temperatures of hydraulic oil in hydraulic oil reservoir tanks.   The system may also be utilized to facilitate flow of a heat exchange medium which cools fluid in either diesel fuel or hydraulic oil reservoir tanks.
Patent CA-1341508-C (CA)
Title: Transforming growth factor peptides
Inventor: TODARO GEORGE JOSEPH
IPC: C07K16/00
Filed: 1984-04-26
Granted: 2006-06-13
Abstract: This invention discloses a new process for preparing a polypeptide containing at least one peptide sequence of the formula I:   -Cys-(AA)a-Cys-(AA)b-Cys-(AA)c-Cys-AA-Cys-(AA)d-Cys- ~(I) wherein AA is an amino acid residue selected from Val, Ser, His, Phe, Asn, Lys, Asp, Thr, Gln, Agr, Leu, Glu, Pro, Ala, Gly, Trp and Tyr, and a is 7, b is 4 or 5, c is 10, and d is 8, wherein said polypeptide contains up to about 50 amino acid residues, which comprises sequential coupling of amino acids, in the order given by the polypeptide formula, and the polypeptide contains at least about 50 amino acids. The process comprises synthetically preparing a double stranded DNA sequence which codes for the amino acid sequence of the polypeptide structure, inserting the double stranded DNA into a suitable site in a cloning vehicle or vector to form a recombinant DNA molecule and transforming an appropriate host with the recombinant DNA molecule and transforming an appropriate host with the recombinant DNA molecule to obtain expression of the polypeptide.      This is a unique and improved process.
Patent CA-1299111-C (CA)
Title: Stereo synthesizer
Inventor: KLAYMAN ARNOLD I
IPC: H04S5/00
Filed: 1989-02-24
Granted: 1992-04-21
Abstract: STEREO SYNTHESIZER                  ABSTRACT OF THE DISCLOSURE A stereo image enhancement system, in which dif-ference signal components in relatively quieter difference signal frequency bands are boosted to provide an improved stereo image, is provided with a stereo input that is syn-thetically derived from a monaural signal (L + R).  Simu-lated sum (L + R)s and simulated difference (L - R)s sig-nals are provided from a monaural input (L + R) by sending the input through a phase shifter and splitter (12) that provides 0° and 90° outputs with a constant 90° phase separation between the two at all audio frequencies.  The leading one of the two output signals from the phase shifter is employed as a simulated sum signal,  and the other as a simulated difference signal.   The simulated difference signal has different frequency components, each delayed by different amounts relative to corresponding components of like frequency of the simulated sum signal. This provides an effective synthetic difference signal, with both sum and difference signals being suitably fil-tered to provide an improved pair of synthetically derived stereo sum and difference signals (L + R)s,  (L - R)s as inputs to an image enhancement circuit.
Patent CA-1311067-C (CA)
Title: Customer line tester
Inventor: LAWRENCE PETER J
IPC: H04M3/30
Filed: 1989-04-07
Granted: 1992-12-01
Abstract: ABSTRACT OF THE DISCLOSURE      Apparatus is described for testing a telephone line between a customer's telephone and a local exchange associated therewith.  The apparatus comprises a field unit positioned between the customer's telephone and the line, an exchange unit positioned at the exchange, and a microcomputer associated with the field unit for controlling operation of the field unit and the exchange unit.  The field unit and the exchange unit each have means for transmitting frequency tones down the line and means for measuring the voltage across the line.  The microcomputer is programmed to calculate the loudness rating of the line from the measured voltage values.
Patent CA-1336267-C (CA)
Inventor: MARCHAND DENIS
IPC: B01D53/00
Filed: 1989-04-10
Granted: 1995-07-11
Abstract: Procédé et dispositif de réduction de la teneur en HCl de fumées issues de l'incinération d'ordures ménagères, dans lesquels les fumées sont refroidies, la vapeur d'eau condensant et HCl étant absorbé du sein des fumées dans l'eau qui a condensé, les fumées étant toujours au-dessus de leur température de rosée.
Patent CA-1334616-C (CA)
Title: Lost foam pattern assembly for v-block engine
Inventor: VANRENS RUSSELL J
IPC: F02F7/00
Filed: 1989-04-24
Granted: 1995-03-07
Abstract: Disclosed herein is a lost foam pattern assembly comprising a crankcase section including first and second planar surfaces intersecting at an angle defined therebetween, a port cylinder section fixed to the first surface of the crankcase section, and a starboard cylinder section fixed to the second surface of the crankcase section, which port and starboard cylinder sections are fixed to each other along a glue face located in a plane bisecting the angle.