baber/WOPTO huggingface dataset:
Patent CA-1191000-A (CA)
Inventor: MOSTAFA MOHAMAD A
IPC: C08J9/18
Filed: 1982-07-23
Granted: 1985-07-23
Abstract: .                   ABSTRACT OF THE DISCLOSURE        Expandable styrene-type polymer beads having a short cooling time are obtained by a method wherein styrene-type polymer beads are impregnated with a blowing agent preferably as a step separate and independent of the polymerization step or in the same suspension polymerization reactor after a substantial completion of the polymerization, in an aqueous suspension comprising styrene-type polymer beads, a blowing agent, a suspending agent, at least 0.0001% of a halide salt of a transition metal selected from the group consisting of iron, titanium, vanadium, chromium, manganese, cobalt, nickel and copper, or a mixture thereof, and at least 0.001% of glycerol mono-, di-, or tri-ester of a fatty acid having 12-30 carbon atoms or a mixture thereof, said halide being bromide, chloride or iodide, and said percentages being based on the total weight of polymer beads subjected to the impregnation, with the proviso that if said glycerol ester is a tri-ester, there must be present at least 0.0001% of a bromide salt of said transition metal or a mixture thereof.
Patent CA-1186803-A (CA)
Inventor: FURUKAWA SHUNSUKE
IPC: G06F13/10
Filed: 1982-08-18
Granted: 1985-05-07
Abstract: ABSTRACT OF THE DISCLOSURE     Apparatus for rapidly transferring data between a central processing unit (CPU) of microcomputer apparatus and floppy disc drives, includes a floppy disc controller for interfacing the floppy disc drives with the CPU and generating an interrupt request status signal indicating whether a command has been executed and a data request status signal indicating whether data is to transferred between the floppy disc controller and the CPU, the CPU generating command signals in response to these status signals; a data bus connecting the CPU to data access lines of the floppy disc controller; a bidirectional buffer interposed between the data bus and the data access lines for gating the data between the floppy disc controller and the CPU through the data bus and for gating the interrupt request status signal and data request status signal through the data bus to the CPU in response to gating signals; first and second gate circuits for gating the status signals to the buffer in response to the gating signals; a NOR gate for supplying gating signals to enable the buffer in response to the command signals; and an OR gate for supplying gating signals to enable the first and second gate circuits in response to the command signals, whereby rapid data transfer is achieved without using a direct memory access controller.
Patent CA-1174201-A (CA)
Inventor: SARTOR BRUNO
IPC: C23C14/20
Filed: 1982-08-25
Granted: 1984-09-11
Abstract: ABSTRACT OF THE DISCLOSURE      A method for metallizing the surface of a carbon fiber reinforced plastic member by vapor-deposition of a metal layer in a high vacuum, with a glow treatment taking place before the vapor-deposition process.  The surface of the plastic member to be metallized is removed until the carbon fibers lying closest to the surface are partially exposed.  The plastic member is then degassed.  A negative high voltage is applied across the degassed plastic member to bring about a glow treatment of the plastic member before the metal vapor-deposition.  The glow treatment is continued into the initial phase of the metal vapor-deposition process.
Patent CA-1171334-A (CA)
Inventor: ASH STEPHEN R
IPC: A61M5/00
Filed: 1982-09-01
Granted: 1984-07-24
Abstract: Abstract An implantable catheter is disclosed that is particularly useful as a peritoneal access device.  The catheter includes an elongated, flexible tube, one portion of which is adapted to extend into the body of a user with a second portion external to the body of the user.  The end of the one portion of the tube within the body has connected thereto a terminating member comprised of a pair of spaced apart sheets extending outwardly of the periphery of the tube with the spaced sheets forming a passage therebetween com-municating with the interior of the tube through a central opening in one of the sheets so that access to the tube is through the passage formed by the spaced sheets.  In the disclosed embodiments, the sheets are either substantially flat discs held in spaced relation-ship with respect to one another by means of a plurality of columns extending between the discs or are apertured, curved sheets with opposite edges connected together. Columns of reduced diameter are also disclosed to enable folding of the discs to facilitate insertion into the body of a user.
Patent CA-1184193-A (CA)
Inventor: EFFENBERGER FRANZ
IPC: C07C227/04
Filed: 1982-09-09
Granted: 1985-03-19
Abstract: ABSTRACT OF THE DISCLOSURE         The present invention provides 2-azido-3-benzyloxy-propionic acid benzyl ester, which is a valuable intermediate product for the production of D,L-serine or derivatives of D,L-serine.  The compound is produced by reacting 2-chloro-acrylo-nitrile with twice the molar amount of benzyl alcohol to 3-benzyloxy-2-chloro-propionic acid imino-benzyl ester, which is then acidically saponified to 3-benzyloxy-2-chloro-propionic acid benzyl ester and finally the chlorine atom is exchanged for an azido group by reaction with an alkali metal azide in the presence of a phase transfer catalyst.
Patent CA-1192763-A (CA)
Inventor: OLSON GEORGE E
IPC: F16H55/30
Filed: 1982-12-24
Granted: 1985-09-03
Abstract: SPROCKET CONSTRUCTION FOR A     ZERO CATERNARY CHAIN Abstract of the Disclosure A sprocket construction for a zero caternary chain.  In a zero  caternary chain, a tensioning system is utilized to prevent caternary or slack in the chain and as a result of the high degree of tensioning, the bushings of the chain ride against the roots of the sprocket teeth.  To prevent erosion of the sprocket teeth and bushinys, the root diameter is modified to provide an enlarged operating pitch diameter for a predetermined increase in pitch length of the link.  The pitch line clearance is enlarged so that it is equal to 2% to 25% of the working pitch diameter and produces a tooth angle of 20° to 40°.
Patent CA-1185210-A (CA)
Inventor: CHUPKA DAVID E
IPC: B07B1/20
Filed: 1983-02-17
Granted: 1985-04-09
Abstract: SCREENING APPARATUS FOR PAPER MAKING STOCK         Abstract of the Disclosure A screening cylinder for use in screening apparatus for paper making stock includes a reinforcing skeleton structure comprising multiple bars extending generally axially of the inside of the cylinder which are welded to relatively heavy reinforcing hoops located at both ends of the cylinder and at a plurality of uniformly spaced locations along the length of the cylinder.  Between each adjacent pair of these hoops is a plurality of circular rings of metal rod material arranged in closely spaced relation with each other and with the hoops to define a corresponding plurality of circumferentially extending screening slots.  This screening cylinder is specifically designed for use in screening apparatus characterized by a rotor comprising bars or vanes of air foil section moving in closely spaced but non-contacting relation with the radially inner surfaces of the axially extending bars for the purpose of creating alternating positive and negative pressure waves effective to prevent plugging of the slots in the screening cylinder.
Patent CA-1217960-A (CA)
Inventor: WATANABE TOSHIRO
IPC: H04N5/74
Filed: 1983-02-21
Granted: 1987-02-17
Abstract: ABSTRACT OF THE DISCLOSURE            A television receiver of projection type including a color cathode ray tube having a phosphor face forming a color phosphor pattern, a projection screen, a projection lens for projecting an image on the cathode ray tube on the projection screen, and a prism plate having a plurality of prisms disposed in front of the color cathode ray tube for spitting a light path from the color cathode ray tube so as to shift the image each other by a predetermined distance on the projection screen, wherein the inclination angle of each prism of the prism plate is selected different between at central portion and at peripheral portion.
Patent CA-1251720-A (CA)
Inventor: WILDMOSER MARTIN M
IPC: B65B11/08
Filed: 1983-03-18
Granted: 1989-03-28
Abstract: UNIT LOAD WRAPPING WITH CONTROLLED WRAP TENSIONING                       Abstract of the Disclosure Apparatus and method for wrapping a resiliently stretchable film wrap around a group of articles stacked on a pallet, with the film wrap tensioned to a desired tension, by feeding the film wrap along a feed path from supply rolls to a wrapping station, with tension rollers placed serially along the feed path such that the film wrap is coupled for movement with the surface of each tension roller, the tension rollers being driven so that the surface speeds of the serially located roller sur-faces differ from one another in order to stretch and tension the film wrap to a given tension, and the stretched and tensioned film wrap being applied to the stacked articles at a rate rela-tive to the advancement of the film wrap from the tension rollers so as to attain the desired tension in the applied film wrap while limiting the magnitude of forces exerted upon the unit load by the tensioned film wrap.
Patent CA-1217907-A (CA)
Inventor: ENGLISH LARRY W
IPC: B29C49/14
Filed: 1983-04-05
Granted: 1987-02-17
Abstract: ABSTRACT OF THE DISCLOSURE             Disclosed are a blow molding method and machine for forming from a continous tube of substantially unoriented normally highly crystalline thermoplastic material at its orientation temperature a chain of hollow, shaped article bodies in which the material is biaxially oriented.  The machine comprises a tube and chain transporter, a tube brake, and at least one stationary blow mold.  The transporter functions to pull the tube from a first point to a second point, and to push beyond the second point that portion of the chain formed between the two points.  The tube brake functions to brake the travel of the tube past the first point during at least part of the time it is being pulled, whereby the part of the tube between said points is longitudinally stretched.  The stationary blow mold has at least two mold pieces that close on the stretched part of the tube, and open after formation of the hollow body in the cavity defined by the closed mold pieces.  The mold also comprises means for inflating the portion of the stretched part of the tube within the mold cavity, whereby one of said bodies is formed therein, and the material thereof becomes biaxially oriented.
Patent CA-1161597-A (CA)
Inventor: CHONG BERNI P
IPC: C02F1/42
Filed: 1983-04-12
Granted: 1984-01-31
Abstract: ABSTRACT OF THE DISCLOSURE    According to one aspect of the invention as disclosed, emulsion copolymer particles with diameters smaller than 1.5 micrometers and functionalized with cation exchange functional groups are prepared and suspended as emulsions in liquid media to form liquid cation exchange materials. Also, emulsion copolymer particles with diameters less than 1.5 micrometers are functionalized with anion exchange functional groups by a method involving coagulation of the emulsion,  according to another aspect of the invention disclosed herein. Both weakly basic and strongly basic anion exchange resins are prepared from aromatic or acrylic copolymers, and the emulsion coagula may be resuspended to form anion exchange emulsion4.  Additionally, by a further aspect of the invention as disclosed, ions are exchanged between emulsion ion exchange resins and conventional ion exchange resins during both batch and column contact.  This process may be used to place the emulsion resin or the conventionai resin in the desired ionic form.
Patent CA-1203978-A (CA)
Inventor: WEBB SAMUEL B
IPC: F27B7/24
Filed: 1983-05-06
Granted: 1986-05-06
Abstract: METAL LEAF ROTARY SEAL                  ABSTRACT OF THE DISCLOSURE        A rotary seal seals a large, high temperature rotary drum to a stationary hood where the drum is mounted for rotation with respect to said hood.  The seal is formed of a series of overlapping leaves of resilient metal disposed successively to encircle the drum surface, each leaf having an inner surface and an outer surface and a mounting end and a sealing end, with the mounting end affixed to the stationary hood, and the sealing end disposed at the drum surface with the outer surface concave.  Each leaf extends obliquely at a substantial angle relative to an axial plane therethrough so that the sealing end is displaced circumferentially a substantial distance relative to the mounting end.  Each leaf further has a sealing edge on its outer surface between the mounting and sealing ends extending obliquely of the axial plane, such sealing edge being disposed beneath the inner surface of an adjacent leaf.  A wear liner is disposed on the inner surfaces of the leaves at their sealing ends for spacing the sealing ends from the drum surface and mating with the drum surface.  The sealing ends are secured to the liner.  The inner surface of a respective leaf is forced against the sealing edge of the respective adjacent leaf while leaving the respective sealing edge free to move relative to the respective inner surface upon flexure of the seal when the drum moves radially relative to the hood.
Patent CA-1201059-A (CA)
Inventor: HANNA MOHSEN R
IPC: E21B43/02
Filed: 1983-05-20
Granted: 1986-02-25
Abstract: ABSTRACT           There is disclosed a process for transforming an unconsolidated formation surrounding a borehole into a consolidated state for the prevention of the migration of small particles during the removal of fluid from the borehole.  The formation is heated to a predetermined temperature capable of supporting low temperature oxidation, and thus precipitation of asphaltenes in the formation upon injection of unheated air into the borehole is achieved and results in consolidation of the formation.
Patent CA-1231767-A (CA)
Inventor: KOMASAKU SEIICHI
IPC: H01H35/00
Filed: 1983-06-09
Granted: 1988-01-19
Abstract: Abstract of the Disclosure An angle change detector which can also be used as an inclination angle detector comprises a pair of opposing magnets, a sector-shaped pendulum made of an electroconductive non magnetic material and swingable past a spacing between the opposing magnets, and a pair of photosensors disposed on both side edges of the pendulum.          Each photosensor comprises a light emitting diode and a phototransistor disposed on both sides of the pendulum.          Output signals of the phototransistors are compared with a reference signal for producing an output signal corres-ponding to the degree of swinging of the pendulum.
Patent CA-1207032-A (CA)
Inventor: BECQUET JACQUELINE
IPC: G07F17/04
Filed: 1983-06-22
Granted: 1986-07-02
Abstract: Abstract of the Disclosure Apparatus for checking pulse rate by plethysmograph detection Mrs. Jacqueline BECQUET and Mr. Hervé DENIS     The invention relates to apparatus for checking pulse rate by plethysmograph detection, comprising a plethysmograph measurement device, a unit for processing the signals obtained and a display device for presenting written and/or graphic information.           The technical problem posed is to eliminate as far as possible, sources of errors and, in particular, to avoid movements of the user during the measurement.           According to the invention, the plethysmograph measurement device comprises two identical transducers (32) each associated with a finger of a respective hand, and the processing unit performs a correlation operation on the signals from the respective transducers to eliminate parasitic signals.           The invention is particularly applicable to apparatus for use in public places.
Patent CA-1201255-A (CA)
Inventor: EPPLER RICHARD A
IPC: C01G51/00
Filed: 1983-07-26
Granted: 1986-03-04
Abstract: DARK BROWN PIGMENTS OF PSEUDOBROOKITE STRUCTURE                  ABSTRACT OF THE DISCLOSURE        Dark brown inorganic pigment materials which are characterized by high tinctorial strengths, excellent color and thermal stability, and very high opacity of pseudobrookite structure are produced by cocalcining compounds of iron and manganese with compounds of titanium and/or tin, and/or silicon.
Patent CA-1210346-A (CA)
Inventor: CAIRNCROSS J GREGORY
IPC: C07K16/30
Filed: 1983-08-30
Granted: 1986-08-26
Abstract: ABSTRACT       Method of forming an antibody producing hybridoma cell line by fusing a myeloma derived cell strain with splenocytes derived from BALB/c mice immunized with human astrocytoma tumor cells, the hybridoma cell line formed, and the monoclonal antibodies generated by said cell line.  A method of phenotyping astrocytoma tumor cells comprising determining the reaction of said cells to various phenotyped monoclonal antibodies to astrocytoma tumor cells is also provided.
Patent CA-1204636-A (CA)
Inventor: WITMAN JACK H
IPC: B32B27/14
Filed: 1983-08-30
Granted: 1986-05-20
Abstract: DECORATIVE SURFACE COVERING                       Abstract The present invention relates to a process of preparing decorative coverings whereby a pattern is optionally provided on a backing and is then covered with a layer of thermoplastic material.  Translucent or transparent chips having a thickness dimension not less than the thickness of the layer of material are applied to the surface thereof, the material is warmed, and the structure is consolidated to push the chips down into the layer of material until they contact the underlying surface.  By doing so, the material residing between the chips and the underlying surface is extruded from beneath the chips, resulting in a plurality of windows onto the underlying surface.  Structures produced according to the present invention exhibit unique visual properties and are useful as floor coverings, wall coverings, and the like.
Patent CA-1204003-A (CA)
Inventor: GLORE THOMAS G
IPC: B23B31/24
Filed: 1983-09-20
Granted: 1986-05-06
Abstract: FREE FLOATING ACTUATING SLEEVE FOR KEYLESS CHUCK                 ABSTRACT     A compact keyless chuck having means therein for isolating inasmuch as possible, impact and abrasion on an operator's hand normally encountered when the chuck jaws bottom, for example, about a rotatable work tool.  A free floating sleeve, rotatable and slidable with respect to the chuck encircles the same and is provided with a sur-face thereon for implementing actuation of the tightening or loosening of the rotatable work tool upon motorized operation of the machine spindle.
Patent CA-1203126-A (CA)
Inventor: PORTER ROBERT E
IPC: D05B27/04
Filed: 1983-09-20
Granted: 1986-04-15
Abstract: ABSTRACT OF THE DISCLOSURE         An improved top feed arrangement for cooperation with a lower feed dog of a sewing machine, the lower feed dog cyclically engaging and disengaging the lower surface of material to be sewn in order to move that lower surface along a predetermined path through and past the sewing machine.  The top feed arrangement comprises an upper feed dog carried by an arm that is linked to an oscillatory take-off from the primary drive means of the sewing machine. The arm is connected to those drive means at one end in a pivotal connection and the upper feed dog is carried at the other end of the arm.  Biasing means bear against the arm at a location adjacent the upper feed dog.  A lifter means, also responsive to the primary drive system of the sewing machine, periodically moves the upper feed dog in a direction away from the lower feed dog against the force of the biasing means.  The linkage from the sewing machine drive to the top feed is housed in a recessed area removed from the work and an uncluttered large work area is provided.
Patent CA-1181634-A (CA)
Inventor: KORONKA PAUL
IPC: A01B13/16
Filed: 1983-10-14
Granted: 1985-01-29
Abstract: ABSTRACT      A process of planting crops in heavy or compacted land, comprising treating an area of such land with suffi-cient of a soil-inactivated total herbicide to kill weeds already growing therein, and thereafter drilling seed into the substantially undisturbed land surface, charact-erised in that prior to drilling the porosity of the soil is improved by making a series of adjacent substantially parallel cuts therethrough on a vertical diagonal whereby the body of the soil is fissured without substantial disturbance of the surface.
Patent CA-1209259-A (CA)
Inventor: WAKABAYASHI NOBORU
IPC: G11B5/105
Filed: 1983-10-21
Granted: 1986-08-05
Abstract: ABSTRACT OF THE DISCLOSURE           A magnetic transducer head assembly having a support member in which a magnetic transducer head mounting portion, an integrated circuit element mounting portion and a plurality of lead terminals are supported to be a unitary body by a resin mold, a multichannel magnetic transducer head element mounted on the magnetic transducer head mounting portion, an integrated circuit element mounted on the integrated circuit element mounting portion which integrated circuit element includes a repro-ducing or recording circuit for the magnetic transducer head element, and wiring means for carrying out a pre-determined electric connection between the integrated circuit element and the lead terminals.
Patent CA-1237406-A (CA)
Inventor: MULZET ALFRED P
IPC: B04B9/08
Filed: 1983-11-14
Granted: 1988-05-31
Abstract: SEALLESS CENTRIFUGE PROCESSING CHANNEL          AND TUBE SYSTEM                          Abstract The disclosure is a disposable low-mass processing channel and multilumen tube system for operation with a 2.omega. sealless centrifuge in which the centrifuge rotor rotates at 2.omega. axially to a platform rotor rotating at 1.omega. and to a fixed axial clamp on the multilumen tube.  The blood processing channel is equipped with several tube lumens for access to different blood fractions to be separated by the centrifuge action.  The plastic lumen tube is supported at each end by plastic reinforcing tubes clamped at clamp ends and ending in thrust drive bearings at the free ends.  The thrust drive bearings are arranged to rotation about the multilumen tube and for fixation with respect to slotted conical reinforcing tube receivers on the 1.omega. rotor.  Centrifugal force fixes the thrust bearings in place within the slotted conical reinforcing tube receivers.  The low-mass central portion of the multilumen tube is unsupported; in operation it files free in a wide bend.  The multilumen tube is easily placed in position in the slots of the reinforcing tube receivers of the centrifuge rotor, by side-entry, and are subsequently held in place by the beam strength of the flexed reinforcing tubes and by centrifugal force.
Patent CA-1208789-A (CA)
Inventor: CHOW PETER E
IPC: H03M3/04
Filed: 1983-11-25
Granted: 1986-07-29
Abstract: ADPCM ENCODER/DECODER WITH IMPROVED TRACKING          Abstract of the Disclosure An ADPCM encoder and decoder includes an adaptive quantizer and an adaptive predictor.  A quantizing-step-size adaptation circuit determines a quantizing-step-size for the adaptive quantizer in dependence upon the ADPCM signal.  when the quantizing-step-size is small, updating of predictor coefficients, produced in the adaptive predictor, in dependence upon a reconstructed signal and a reconstructed error signal derived from the ADPCM signal, is inhibited, the predictor coefficients being updated only in dependence upon a leakage function.  This enables improved tracking to be achieved by the ADPCM arrangement.                     -i-