baber/WOPTO huggingface dataset:
Patent CA-1238370-A (CA)
Inventor: TAKEDA YUKIO
IPC: H04L27/06
Filed: 1984-11-20
Granted: 1988-06-21
Abstract: RECEIVER UNIT IN RADIO COMMUNICATION SYSTEM ABSTRACT OF THE DISCLOSURE A receiver unit in a radio communication system in which a transmitter unit outputs transmission data, modulated in accordance with a multilevel QAM method and containing a leakage carrier by addition of a DC offset signal to either one of the quadrature components forming the transmission data, to the receiver unit through a transmission line, including: means for receiving the transmission data; means for branching a signal received at the transmission data receiving means into first and second signal components forming the multilevel QAM data, each including the leakage carrier having a phase difference of ? radian; first channel means for demodulating the first branched signal com-ponent and including a first synchronous detection circuit and a first discriminator; second channel means for demodulating the second branched signal component and including a second synchronous detection circuit and a second discriminator; and means for recovering the carrier including a control circuit, for cancelling a noise component contained in the output signal from either one of the first and second synchronous detection circuits and for providing only a DC component repre-senting a phase difference between a leakage carrier and a reference carrier, and a phase-locked loop (PLL) circuit, for controlling the phase difference to zero and for providing phase-locked leakage carriers to the reference carriers, having a phase difference of ? radian, to the first and second synchronous detection circuits.
Patent CA-1220662-A (CA)
Title: Lithographic printing plate and process for  production thereof
Inventor: IMAI MASANORI
IPC: G03F7/40
Filed: 1984-12-20
Granted: 1987-04-21
Abstract: ABSTRACT OF THE DISCLOSURE         An improved lithographic printing plate and a process for production thereof, involving exposure to light, development, and burning-in treatment of a pre-sensitized printing plate precursor, are disclosed, the improvement comprising applying an aqueous solution containing at least one compound selected from the group consisting of malic acid and salts thereof onto the printing plate precursor prior to the burning-in treatment; by the improvement, a lithographic printing plate having excellent printing durability can be produced.
Patent CA-1269952-A (CA)
Inventor: PRENDERGAST GAVAN JAMES JOSEPH
IPC: B04C5/081
Filed: 1985-01-22
Granted: 1990-06-05
Abstract: ABSTRACT     A cyclone separator (10) having an inlet with inner and outer profiles (84, 82), viewed in section transverse to the separator axis.  This location of any particular point on the outer profile (82) is defined by a vector contained in a plane normal to the separator axis, and having its origin at a location (C) where the outer profile meets the adjacent inner circumference (86) of the separator.  As the magnitude of the vector (T) increases, an angle (.THETA.) between the vector (T) and a tangent (92) to the circumference (C) which passes through location (C) never decreases and never becomes less than zero.  The location of any particular point on the inner profile (84) is defined by a vector (U) having its point of origin at a location (E) where the inner profile or at least its projection meets the separator circumference (86). As the magnitude of vector (U) increases, an angle (?) between vector (U) and a tangent (93) to circumference (86) which passes through location (E) never decreases and never becomes less than zero, at least for substantial magnitudes of vector (U).
Patent CA-1231976-A (CA)
Inventor: FRANK GERHARD
IPC: B01J23/00
Filed: 1985-01-25
Granted: 1988-01-26
Abstract: - 13 -            O.Z.0050/36947 Abstract of the Disclosure:  Saturated primary amines are prepared by reacting a nitrile with hydrogen at elevated temperatures and under superatmospheric pressure in the presence of ammonia by a process in which a molded cata-lyst material as used which has an indentation hardness of >300 kp/cm2 and contains metallic cobalt and/or nickel particles, obtained from cobalt oxide and/or nickel oxide particles containing less than 0.1% by weight of alkali metal oxides and/or alkaline earth metal oxides by reduction with hydrogen at <500°C, and a lubricant.
Patent CA-1232303-A (CA)
Inventor: GORALL DONALD J
IPC: D21H21/40
Filed: 1985-02-05
Granted: 1988-02-02
Abstract: ABSTRACT          PROTECTION OF LEGAL DOCUMENTS BY REVERSE PENETRATION           A document has a paper substrate with a front surface upon which information is marked in ink. The document is improved to resist alterations by erasure of selected information on its front surface. In the improvement the substrate has a back sur-face upon which the selected information is marked in ink in iden-tical underlay position as the selected information on the front surface. Ink penetrates into the front and back surfaces of the substrate to such an extent in the identical underlay positions that the selected information on the front face may not be erased without damage to the substrate to expose ink penetration from the back surface.
Patent CA-1249618-A (CA)
Inventor: FERRARI AGGRADI GIAN P
IPC: F16L13/16
Filed: 1985-03-13
Granted: 1989-01-31
Abstract: ABSTRACT OF THE DISCLOSURE:          Method of manufacturing a sleeve adapted to be tightly jointed to a submarine pipe laid at great depth. The method comprises the steps of shaping the inner surface of the sleeve with a sequence of grooves and of toothings, and filling each groove of the sleeve with two half-rings made with a material which is practically indeformable or deformable to a practically negligible extent under normal pressures, but which collapses with a drastic reduction, greater than 70%, of its volume under high pressures of the order of 300 kg/cm2.  And a sleeve manufactured by this method.
Patent CA-1245339-A (CA)
Inventor: CATROS JEAN Y
IPC: G06T9/00
Filed: 1985-03-29
Granted: 1988-11-22
Abstract: ABSTRACT OF THE DISCLOSURE           The method and the system for bit-rate compression of digital data between a television trans-mitter and receiver employ at the transmitter a differential coding device comprising a code allocator coupled respectively to the outputs of predictors which deliver the spatial prediction errors of the contour areas or highly textured areas of the image, the spatial pre-diction errors of the uniform areas and the temporal prediction errors of the uniform and fixed areas.  The code allocator is controlled by a selecting device which selects one output of the predictors for applying a prediction error value to the input of a coding structure of the code allocator in order to code each datum of a current point applied to the input of a predictor in three different fixed-length codes, depending on whether the current point is located in a contour area or highly textured area of the image or whether the current point is located in a fixed or moving uniform area.
Patent CA-1266181-A (CA)
Inventor: WALTON FRANK A
IPC: G05D11/13
Filed: 1985-04-30
Granted: 1990-02-27
Abstract: ABSTRACT OF THE DISCLOSURE A liquid additive injection pump has a hydraulic motor comprising a differential piston assembly reciprocable in a housing under the urging of a primary liquid into which an additive  is to be  injected.   The piston assembly includes valves to effect the transfer of a primary fluid charge from the  pump  motor  to  a  discharge  passage  and  to  effect reciprocation of the piston assembly.  The motor piston is connected  to  a  central  axially  disposed  piston rod which extends  into an additive injection pump cylinder.   In one embodiment a floating additive injection pump piston has a stack of displacement control washers engaged therewith and disposed on the piston rod.   In another embodiment the pump piston passes through a seal member between a pump chamber and a bypass chamber and an elongated spiral groove formed on the periphery  of  the  pump  piston  determines  the  effective displacement of the pump.  A spring biased toggle type linkage snaps the motor valves  into open and closed positions to provide positive  movement  of  the  valve  members.    Liquid additive is  injected into the primary fluid stream at the outlet passage of the apparatus and downstream of the motor mechanism.
Patent CA-1232664-A (CA)
Inventor: MYSLINSKI THEODORE A
IPC: H04M3/537
Filed: 1985-05-14
Granted: 1988-02-09
Abstract: MESSAGE WAITING ALERTING METHOD           Abstract An automatic message waiting alerting arrangement in a telephone switching system.  Messages for parties served by the system are automatically and manually generated and stored in a database.  A message waiting indicator associated with a station is automatically activated only when the database contains an unaccessed message for the station, even though other accessed messages may be retained in the database for the convenience of the station owner.  An "accessed" indicator included with each stored message is set to an "unaccessed" state when the message is initially stored.  The indicator is set to an "accessed" state when the  corresponding message is accessed by an authorized party.  At the termination of an access session, the data base is searched for unaccessed messages for the station and the message waiting indicator is activated only if at least one unaccessed message for the station is found.
Patent CA-1257129-A (CA)
Inventor: ISHIKAWA KATSUKIYO
IPC: G03F7/033
Filed: 1985-05-29
Granted: 1989-07-11
Abstract: ABSTRACT OF THE DISCLOSURE     A water-developable photo-polymerizable composition is disclosed, together with a printing plate prepared there-from.  The photo-polymerizable composition comprises a copolymer of an .alpha., .beta.-ethylenically unsaturated carboxylic acid and a vinyl monomer, a vinyl compound having a secondary or tertiary nitrogen atom, an ethylenically unsaturated monomeric compound, and a photoinitiator.   Printing plates prepared from the composition are water-developable and also water-resistant following developing.
Patent CA-1234150-A (CA)
Inventor: ERPENBACH HEINZ
IPC: C07C51/12
Filed: 1985-07-10
Granted: 1988-03-15
Abstract: PROCESS FOR MAKING ACETIC ANHYDRIDE AND, IF DESIRED, ACETIC ACID     ABSTRACT OF THE DISCLOSURE:     Acetic anhydride and acetic acid are made by reacting methyl acetate and/or dimethylether and, if desired, methanol with carbon monoxide, optionally in the presence of water, at temperatures of 350 to 575 K, under pressures of 1 to 300 bar in the presence of a catalyst system containing noble metals belonging to group VIII of the Periodic System of the ele-ments or their compounds, iodine and/or its compounds and, if desired, carbonyl-yielding non noble metals of groups IV, V, VI, VII or VIII of the Periodic system of the elements, or their compounds and, if desired, an aliphatic carboxylic acid having from 1 to 4 carbon atoms. To this end, a catalyst system containing tetrabutylphosphonium iodide as an additi-onal promoter is used.
Patent CA-1245877-A (CA)
Inventor: ARMITAGE J HERBERT
IPC: E04B1/32
Filed: 1985-07-23
Granted: 1988-12-06
Abstract: ABSTRACT OF THE DISCLOSURE        A domed self-supporting frameless building structure includes a plurality of monolithic, precast, elongated, concrete panels arranged in abutting edge to edge relationship with one another such that the panels are under compressive loadings in both the longitudinal and lateral directions.  The longitudinal edges of each of such panels coincide with imaginary lines of longitude of a spherical or sphere-like shape.  A plurality of circumferential courses of such panels are provided with the panels of any one such course being in abutting end-to-end relation with the panels of the next adjacent course.  A tension ring surrounds the lower extremity of such dome and the lowermost ends of the panels of the lowermost course are in abutting relation with the ring thereby to assist in securing the panels together in the abutting edge to edge relationship.
Patent CA-1239737-A (CA)
Inventor: GLORIOD PIERRE
IPC: C08F210/02
Filed: 1985-08-23
Granted: 1988-07-26
Abstract: A process for the manufacture of radical ethylene terpolymers or copolymers comprising moieties derived from an alkyl (meth)acrylate and/or moieties derived from maleic anhydride by copolymerizing, in the presence of at least one free-radical initiator, a mixture of ethylene, (meth)acrylate and/or maleic anhydride in a device comprising a primary compressor, the delivery pressure of which is between 200 and 300 bars, connected to a secondary compressor which is connected directly to a polymerization reactor, fresh ethylene being fed at the intake of the said primary compressor and said copolymerization being carried out in the said polymerization reactor under a pressure of between 1,000 and 2,500 bars and at a temperature of between 140 DEG  and 280 DEG  C., wherein the feeding of the (meth)acrylate and/or maleic anhydride into the reactor if effected by introducing maleic anhydride and/or (meth)acrylate at the intake of the secondary compressor. In the case of terpolymers, maleic anhyride is introduced as a solution in the (meth)acrylate. The process of the invention has the advantage of not requiring a homogenization device before the entry of the monomers into the reactor.
Patent CA-1259742-A (CA)
Title: Compositions reactives a base d'oligomeres de  polyamides et de resines epoxydes
Inventor: CUZIN DANIEL
IPC: C08G59/44
Filed: 1985-08-27
Granted: 1989-09-19
Abstract: L'invention concerne une composition réactive comprenant au moins deux constituants réactifs, caractérisée en ce que l'un des constituants est un composé polyépoxyde et l'autre un oligomère de polyamide appartenant au groupe constitué par les oligomères monoamine primaire, alpha, omégadiamine primaire ou secondaire, alpha, oméga-diacide et alphaamine primaire oméga-acide. L'invention concerne également l'application des polymères qui en résultent en moulage, extrusion ainsi que pour le revêtement d'objets métalliques.
Patent CA-1242243-A (CA)
Inventor: MULLERSMAN FERDINAND H
IPC: H02J7/00
Filed: 1985-09-20
Granted: 1988-09-20
Abstract: A CHARGING SYSTEM HAVING ELECTROMAGNETIC  FIELD MEANS FOR DISTINGUISHING BETWEEN     PRIMARY AND SECONDARY BATTERIES ABSTRACT OF THE DISCLOSURE A battery charging system is provided for charging a rechargeable batteries and for distinguishing the rechargeable battery from a non-rechargeable battery.  The charging system establishes an electromagnetic field proximate the battery.  A circuit within the battery enters a resonant condition in response to the electromagnetic field and the resonant condition is sensed by the charging system to switch the charging system from a non-charging mode to a charging mode.
Patent CA-1243288-A (CA)
Inventor: ZIMA JOHN P N CHESTNUT ST NEWH
IPC: A62B1/02
Filed: 1985-09-23
Granted: 1988-10-18
Abstract: ABSTRACT OF THE DISCLOSURE    A device for fighting fires in highrise buildings and towers is disclosed, whereby a pair of parallel arranged platforms are provided for alternative ascension up the side of the building in stepwise fashion. The upper platform is first released from fixed connection with the upper story to which it is attached and raised relatively to the lower platform still fixedly attached the story of the building below. After raising the upper platform to a higher story, it is fixedly attached to that story, whereupon the lower platform is released and raised toward the upper platform until it is positioned adjacent the story previously having the upper platform attached thereto. At this point, the lower platform  is fixedly attached to that story. The process repeats  a series of times to climb up the side of the building to the upper floors where a fire is burning to put out the fire and save lives. To descend, the process is simply reversed. Each platform is provided with clamping means for fixedly attaching the platform to a story of a building at which it is positioned. The clamping means are reciprocal between a clamping position fixing the platform to the story of the building, and a retracted release position to allow movement of the platform relative to the building.          Each platform is also provided with hoisting equipment for lowering persons to the ground, and for allowing access to the ground below and the providing of necessary equpment to the upper  floors.
Patent CA-1250128-A (CA)
Inventor: BINCZEWSKI GEORGE J
IPC: B22D11/16
Filed: 1985-10-03
Granted: 1989-02-21
Abstract: Abstract of the Invention A method and system for continuously or semicontinuously casting a composite metal article, such as a structurally com-posite ingot or the like, wherein one of the principal struc-tural components of the ingot comprises an aluminum-lithium alloy.  During such casting by a D.C. (direct chill) conven-tional tubular mold or electromagnetic process, the aluminum-lithium structural component of a structurally composite ingot is encircled or peripherally encased by a further outer metal cladding component that can be cast simultaneously with the aluminum-lithium component such as another outer aluminous alloy from which lithium is absent as a constituent or impurity, although it may be present and tolerated as a trace element.  In this arrangement the aluminum-lithium structural component is prevented during casting from coming into direct contact with the chilling coolant, normally water, with which lithium can react violently.  Only the outer aluminous alloy envelope is subjected to the direct contact of a liquid coolant whereby as it solidifies, this outer envelope or peripheral sheath acts as an impervious secondary mold for and protects the inner aluminum-lithium alloy structural component which is then directly controllably chilled and solidified.
Patent CA-1256427-A (CA)
Inventor: DILLING PETER
IPC: C08H7/00
Filed: 1985-10-04
Granted: 1989-06-27
Abstract: ABSTRACT OF THE DISCLOSURE           A method is disclosed of producing sodium salts of low electrolyte-containing sulfonates suitable for use as dye and print paste additives.   The method comprises the steps of ionizing the phenol component of a lignin material in an alkaline liquid medium, methylolating the ionized phenol component of the lignin material, lowering the pH of  the liquid medium to the acid pH range to precipitate the methylolated lignin material, washing the precipitated lignin material with water to remove inorganic salts and residual reactants therefrom, and sulfonating the washed,  purified methylolated lignin material with a sodium salt of a sulphur-oxygen containing compound in a liquid medium.   The washed,  purified methylolated lignin material is preferably sulfonated at an acid pH level to minimize the production of salts and electrolytes produced when acidifying the lignin for dye and print paste composition additives.   Lignin products produced by the method,  and dye  and print  paste compositions containing such produced are also disclosed.
Patent CA-1238395-A (CA)
Inventor: KOUNTZ KENNETH J
IPC: F25D13/00
Filed: 1985-11-21
Granted: 1988-06-21
Abstract: SELF-OPTIMIZING, CAPACITY CONTROL SYSTEM FOR INVERTER-DRIVEN CENTRIFUGAL COMPRESSOR BASED                 WATER CHILLERS          ABSTRACT:     A self-optimizing,  capacity  control  system for a refrigeration  system  including a compressor  (20),  a condenser  (22), and an evaporator (28), all connected in a  closed  refrigeration  circuit  is provided.   The com-pressor  includes a plurality of adjustable inlet guide vanes  (31), a motor (32)  connected to regulate the inlet guide vanes position and an electrical speed motor  (36) connected  to drive the compressor.   The self-optimizing capacity  control system includes a microprocessor  (106) responsive to continual measurements of a PRV signal, a compressor head  signal,  a motor current signal and a motor  speed signal for determining both the compressor speed and the position of the inlet guide vanes to define a current  operating  point  in an initial surge surface array stored in a random-access memory (107).  The micro-processor will  initiate a "learning" mode in which the compressor motor speed will  continually be decreased incrementally and the PRV will be moved to a more open position until an  operating point  is found where the compressor  is surging.   The mciroprocessor will update the  initial  surge  surface  array  stored  in  the random-access memory with the latest surge conditions. Then,  the microprocessor will  initiate an  "operating" mode in which the PRV are moved to a position responsive to a  temperature error signal related to the difference between the chilled water temperature and the temperature set point and the compressor speed is set a safety margin away from the surge speed.   In this manner, the micro-processor automatically regulates both  the adjustable inlet guide vanes and the compressor speed in response to the continually updated  "learned"  chiller surge surface so  as  to  realize minimum  overall  chiller  energy consumption.
Patent CA-1221355-A (CA)
Inventor: LANGSTON RALPH C
IPC: H02G1/08
Filed: 1986-01-14
Granted: 1987-05-05
Abstract: METHOD AND APPARATUS FOR PULLING  LONG RUNS OF FIBER OPTIC CABLE               ABSTRACT OF THE DISCLOSURE A fiber optic cable pulling method and appara-tus includes a series of large-diameter capstan winches placed at intermediate access points along the conduit through which the  fiber  optic cable  is to be pulled. Each capstan winch pulls a portion of the cable through a segment  of  the  conduit  at  a  substantially  uniform velocity.   The  capstan  wheel  of  each  winch  is  sized frictionally to engage the cable without exceeding its minimum bending radius.   The winches are independently controlled by  controllers  which  limit  the  rate  of hydraulic fluid and its pressure flowing to the hydrau-lically powered winch, and thereby maintain pulling ten-sion on each portion of the cable below a predetermined tension,  if  exceeded,  which  could  damage  the  fiber optics  in the cable.   The capstan winches are  spaced sufficiently close together so that the pulling tension necessary to pull a portion of cable through each con-duit segment is ordinarily less than the tension pro-vided by the capstan winches.  If a portion of the cable catches in a segment of conduit, the winches cease pull-ing along the entire length of the cable.
Patent CA-1263429-A (CA)
Inventor: CARLSON ROBERT L
IPC: F16C27/02
Filed: 1986-02-06
Granted: 1989-11-28
Abstract: SIDE BEARING UNIT  FOR RAILROAD CAR                      ABSTRACT        A side bearing unit for attachment to a bolster of a truck of a railroad car has a base which may be fastened to a top wall of the bolster.  A housing, car-ried by the base, includes spaced sidewalls joined by end walls to define a cavity for an elastomeric device. A cap, positioned within the housing, is integrally joined to the elastomeric device with a top surface of the cap located above the housing for engagement with a wear plate attached to a bottom of a body of the car. During travel of the railroad car, sets of side bearing unit are particularly effective in regulating indepen-dent rolling of the car body as well as impeding truck hunting, for example.