baber/WOPTO huggingface dataset:
Patent CA-1195018-A (CA)
Inventor: AMADA EIICHI
IPC: H04B1/58
Filed: 1982-12-01
Granted: 1985-10-08
Abstract: ABSTRACT OF THE DISCLOSURE         For the purpose of realizing a line circuit, especially a two-wire four-wire conversion circuit of a telephone exchange in the form of LSI and providing the conversion circuit with an impedance which is suitable to a side tone characteristic of the telephone set, in a line circuit composed of a hybrid circuit wherein the four-wire input line is connected to the two-wire subscriber line via a buffer amplifier and a terminating impedance and in addition the four-wire output line is connected to the output of a subtractor which subtracts an input signal of the four-wire input line passed through a filter circuit from a signal fed from the two-wire subscriber line, the terminating impedance is formed by a resistor component and in addition a feed-back circuit having such a transfer characteristic that the impedance of the line circuit seen from the two-wire subscriber line side will become a specified complex impedance is installed between a line which couples the two-wire subscriber line to the subtractor and an input of the buffer amplifier.
Patent CA-1194229-A (CA)
Inventor: VAN DIJK ATE
IPC: G11B7/09
Filed: 1983-01-20
Granted: 1985-09-24
Abstract: ABSTRACT: "Apparatus for reading a disk-shaped record carrier"     An optical read system for a disk-shaped record carrier. By means of a tracking system the read spot is centred at the information track. The control signal for this tracking system is obtained by means of additional radiation spots which are disposed on radially opposite sides of the read spot. By subjecting the detection signals corresponding to these additional radiation spots and the read spot to a special operation a control signal is obtained which is highly indepen-dent of variations in disk parameters, variations in the intensity of the radiation beams and focussing errors.
Patent CA-1184044-A (CA)
Inventor: BODINE ALBERT G
IPC: E02D7/22
Filed: 1983-04-25
Granted: 1985-03-19
Abstract: SONIC SYSTEM FOR PROPELLING PILINGS, DRILLS AND THE LIKE INTO THE EARTH EMPLOYING SCREW DEVICE            ABSTRACT OF THE DISCLOSURE       An eccentric mass rotor is employed to drive a column which may comprise a casing, piling, drill stem or the like into the earth.  The rotation axis of this rotor is oriented such that when it is rotatably driven, a rotating force vector component is gen-erated which lies in a plane substantially normal to the longitu-dinal axis of the bore hole.  The rotating force vector causes a portion of the column formed by the drill stem, casing, piling or the like to precess or roll around the wall of the bore hole in a cycloidal manner in forceful engagement with the bore hole wall.          Sloping ridges or spiral flanges are formed on a portion of the outer surface of the column, such that the rotary torque generated therein causes forceful engagement of these ridges or spiral flanges with the bore hole wall to thereby effect a screw action which operates to more effectively drive the column down into the earth or with reversal of the direction of torque to pull the column out of the earth.
Patent CA-1204897-A (CA)
Inventor: WITMAN MARK W
IPC: C08L69/00
Filed: 1983-06-22
Granted: 1986-05-20
Abstract: POLYCARBONATE COMPOSITIONS HAVING A HIGH   IMPACT STRENGTH AND MELT FLOW RATE       ABSTRACT OF THE DISCLOSURE The invention relates to thermoplastic aromatic polycarbonates which structural units are characterized by their end groups which are residues of   and is predicated on the surprising and unexpected findings that high melt flow polycarbonates of this type are rendered improved impact performance by admixing therewith small amounts of an impact modifier.
Patent CA-1231493-A (CA)
Inventor: NELSON DONALD L
IPC: C08G59/00
Filed: 1983-06-27
Granted: 1988-01-12
Abstract: ABSTRACT OF THE DISCLOSURE This invention is directed to phenolic hydroxyl--containing compositions and to epoxy resins prepared therefrom, the compositions having more than one phenolic hydroxyl group and more than one aromatic ring per molecule, which is substantially free of ether groups, and which composition results from an acid catalyzed reaction of (A) at least one aromatic compound contain-ing at least one aromatic hydroxyl group and from one to two aromatic rings and at least one ortho or para position relative to a hydroxyl group available for ring alkylation; with (B) at least one unsaturated hydrocarbon.  The invention is characterized in that component (B) is selected from (1)  monounsaturated or diunsaturated hydrocarbons having from 4 to 6 carbom atoms or mixtures thereof; (2)  unsaturated hydrocarbons containing an average of from 6 to 55 carbon atoms per molecule and containing not more than 94 weight percent dicyclopentadiene, (3)  oligomers and/or cooligomers of hydrocarbon dienes, which dienes have from 4 to 18 carbon atoms, and which dienes contain at least 6 percent by weight of diene other than dicyclo-pentadiene; and (4)  mixtures thereof. This invention is also directed to an epoxy resin composition resulting from the dehydrohalogenation of the reaction product of an epoxy alkyl halide with the composition having more than one phenolic hydroxyl group and more than one aromatic ring per molecule as described above.      The epoxy resins of this invention have improved mold shrink properties and improved aqueous solvent resistance.
Patent CA-1217234-A (CA)
Inventor: BURKE TIMOTHY M
IPC: H04B7/26
Filed: 1983-07-27
Granted: 1987-01-27
Abstract: ABSTRACT OF THE DISCLOSURE        A data signalling system for transmitting signals between at least one primary station (50,52) and a plurality of secondary stations (60,62,64). The system is well adapted for use in multiple unit radio communications systems capable of voice and data communications.  A register model is utilized which permits a highly flexible signalling system compatable with a wide range of communications networks.  Data transfer is accomplished using fixed length data packets 74 which are error correction encoded and transmitted utilizing PSK modulation.
Patent CA-1215964-A (CA)
Title: Plastic bucket lid removal tool
Inventor: DIFEDE JOHN
IPC: B67B7/16
Filed: 1983-07-29
Granted: 1986-12-30
Abstract: ABSTRACT OF THE DISCLOSURE           A hand tool for rapidly removing lids from plastic buckets without damage to either bucket or lid.          The tool includes an elongated bar with a handle at one end, a fulcrum near the center and a hook section on the second end for inserting between the bucket and the lid ring.  Vertical movement of the handle rapidly snaps the lid from the bucket.
Patent CA-1213589-A (CA)
Inventor: WEHNER WOLFGANG
IPC: A01N55/04
Filed: 1983-10-04
Granted: 1986-11-04
Abstract: New ammonium stannates-(IV) Abstract Ammonium stannates of the formula [(R1)a(R2)bN(R3)c(R4)d]n?[(R7)qSnXrYt]??      (I) in which the symbols R1, R2, R3, R4, R7, X, Y, a, b, c, d, n, q, r, t and w are as defined in the description, are effective biocides.  They can be used both for the pro-tection of materials and for protecting crop plants.  Their good solubility in water and their low volatility are parti-cularly valuable properties.
Patent CA-1219368-A (CA)
Inventor: ZASIO JOHN J
IPC: G01R31/28
Filed: 1983-10-25
Granted: 1987-03-17
Abstract: ABSTRACT OF THE DISCLOSURE     A  CMOS LSI  or VLSI  integrated  circuit  chip  includes a shift register circuit that  provides  internal  delay  testing  capability.          The shift register circuit is disposed around the periphery of the chip and includes a large number of serially connected stages.  One mode of operation allows a data signal to pass through the shift register circuit at a speed limited only by the propagation delays associated  with the  individual  stages  thereof.   In  this mode  of operation, one net inversion is introduced into the data path and the output of a final stage of the shift register circuit is coupled to the input of a first stage of the shift register circuit,  thereby creating a ring oscillator.  The period of oscillation of this ring oscillator represents  a measure of  the  average  propagation  delay times associated with the various circuit elements employed within the LSI or VLSI circuitry.  Such delay measurements can readily be made at any level of packaging or system operation.
Patent CA-1218852-A (CA)
Inventor: DILWORTH JAMES L
IPC: F25C3/04
Filed: 1983-11-09
Granted: 1987-03-10
Abstract: ABSTRACT OF THE DISCLOSURE       An improved method of and apparatus for making artificial snow. The snow making machine disclosed for practicing the invention includes a ducted fan for generating a substantially unidirectional, high volume air current over the area to be deposited with snow.  High velocity water sprays are injected into the air current from above and below the air current via a plurality of nozzles connected to an annular water manifold circumferentially disposed around the output end of the fan duct.          Nucleated ice crystals are also injected into the air current by a high velocity vapor spray emitted from a pair of seeder nozzles disposed at the center of the annular water manifold. The vapor spray is comprised of a mixture of water and compressed air which is vaporized in a venturi-type expansion chamber prior to emission through the seeder nozzles.   The convergence of the high velocity,  supercooled water sprays with the nucleated ice crystals consolidates the high volume air current providing a venturi cooling effect which  promotes the formation of snow crystals.
Patent CA-1246366-A (CA)
Inventor: MALLINSON STEPHEN R
IPC: G02B6/38
Filed: 1984-01-26
Granted: 1988-12-13
Abstract: Abstract of the Disclosure There is described a method of providing an optical fibre termination having a locating surface con-centric with an optical fibre.  The method comprises the steps of inserting an end of the optical fibre into a sleeve having an axial through bore, securing the optical fibre end within the bore of the sleeve member, thereby to provide a fibre termination, mounting the fibre ter-mination in a rotatable clamping device of a machining tool, transmitting light through the fibre so as to produce a light beam emerging from the fibre end, adjust-ing the rotatable clamping member until rotation thereof produces a stationary light beam defining an axis, and machining the locating surface about the axis defined by the stationary light beam.
Patent CA-1223790-A (CA)
Inventor: KLAUE KAJ
IPC: A61B17/16
Filed: 1984-02-03
Granted: 1987-07-07
Abstract: ABSTRACT          Surgical compression plate system A  system  for  stabilizing  a  bone  fracture  or  an osteotomy in compression osteosynthesis comprises a com-pression plate having at least one elongate  screw hole therein and at least one screw.  The opposed longitudinal walls of the slot are shaped to provide camming surfaces for a head of a screw so that as the screw is screwed into a bone it travels relative to the compression plate within the hole along a predetermined travel path having an  initial  section     of constant  slope and a  final section      of preferably constant slope which is steeper than that of the initial section.
Patent CA-1224302-A (CA)
Inventor: WILLIAMS JAMES E JR
IPC: C09C1/00
Filed: 1984-03-23
Granted: 1987-07-21
Abstract: Abstract of the Disclosure Metal particles, e.g. aluminum, are treated with ionic organic phosphate, being thereby transformed to a state capable of resisting attack from an aqueous medium. The treated particles may be incorporated into a water-borne coating.
Patent CA-1231607-A (CA)
Inventor: DANBY HAL C
IPC: A61M5/14
Filed: 1984-03-30
Granted: 1988-01-19
Abstract: Abstract of the Invention A dual parenteral solution apparatus for delivering predetermined volumes of two solutions at predetermined flow rates with increased accuracy.  The apparatus has a shut-off valve in the supplementary solution supply system which is immediately activated when the supplemental solution supply is depleted.
Patent CA-1216529-A (CA)
Inventor: CHASE KENNETH V
IPC: B65D59/06
Filed: 1984-04-04
Granted: 1987-01-13
Abstract: ABRIDGMENT A thread protector means is disclosed having a threaded body means for threading about the threaded end surface of a tubular member.  A sealing means con-nected to and extending inwardly beyond the thread length has at least one resilient circumferential pro-trusion for circumferentially sealing about the tubular member.  Another sealing means is provided for sealing about the end of the tubular member.
Patent CA-1252377-A (CA)
Inventor: BERTRAND ALAIN
IPC: B30B15/00
Filed: 1984-05-03
Granted: 1989-04-11
Abstract: 1. A forming press equipped with two tables (1, 2) one of which is mobile and which are each exposed to points of thrust resulting from the direct or transmitted action of jacks (16, 17, 19) and/or the reaction of fixed supports (14, 15) one of the tables of the press being exposed to a whole number _n of points of thrust, at least equal to two, and the other opposite table to (n+1) points of thrust which are offset and alternate two by two with the _n points of thrust of the first table in relation to lines parallel with the direction of movement of the mobile table, said points of thrust of the two tables being disposed symmetrically in relation to the median plane perpendicular to said tables, said press being characterised in that the offset of the points of thrust of one table in relation to the other, which is a function of the total possible forming length, and the distribution of the forces over the tables are determined in such a way as to obtain (n+1) common and substantially aligned points on the curves of longitudinal deformation of the tables, including the two end points.
Patent CA-1220861-A (CA)
Inventor: ROBERTS PETER C
IPC: G11C11/411
Filed: 1984-06-22
Granted: 1987-04-21
Abstract: ABSTRACT         A high density, low power dissipating semiconduc-tor memory cell is provided by connecting first and second inputs of a means for maintaining current in one of two conditions to first and second bit lines, by first and second diodes, respectively.  Conveniently, the means for maintaining the current in one of two conditions includes first and second transistors operating in the nor-mal current mode.  Standby current is provided to the base of the first transistor through the first bit line and first diode, and to the base of the second transistor through the second bit line and second diode.
Patent CA-1207239-A (CA)
Inventor: BANIK UPENDRA K KING STREET PI
IPC: A61K31/715
Filed: 1984-08-10
Granted: 1986-07-08
Abstract: GASTROINTESTINAL COMPOSITIONS          Abstract of the Disclosure Gastrointestinal compositions containing from 99 to 70 percent by weight of plantago and from 1 to 30 percent by weight of pectin, useful for inhibiting the occurrence of gastroduodenal ulcers and for preventing their recurrence, for reducing the incidence and severity of undesirable side effects caused by anti-ulcer drugs, and for alleviating discomfort occasioned by gastroesophageal reflux.  Methods for their preparation and use are also disclosed.
Patent CA-1225569-A (CA)
Inventor: FERRARI SERGE
IPC: D06N3/00
Filed: 1984-09-04
Granted: 1987-08-18
Abstract: A method for producing a coated woven fabric, in which the support material comprises disintegrable chemical weft threads which are subsequently removed without the other threads being affected, method wherein: a first support fabric is produced of which only part of the weft threads are disintegrable, and in a weave in which said disintegrable weft thread is so arranged that, were it to be removed, the result would be, not a woven fabric any longer, but a superposition of three criss-crossed layers of parallel warp threads, one layer of weft threads being squeezed between two layers of warp threads, respectively; then, said support fabric is coated with a coating composition; and finally, the deposited coating is gelled in the right temperature conditions to remove the disintegrable weft thread.
Patent CA-1237104-A (CA)
Inventor: LABOMBARDE RAYMOND A
IPC: B65H33/02
Filed: 1984-10-09
Granted: 1988-05-24
Abstract: ABSTRACT OF THE INVENTION     An apparatus for handling a plurality of flat, collapsed, folded paper boxes which have been produced on a high speed, folder-gluer, delivered in shingled formation onto the advancing apron of a stacker, counted into slugs of about fifty each and must be packed into cases for shipment.  To enable an operator to grasp individual and successive lifts of the flats between her hands and remove them for packing, the apparatus includes a secondary apron traveling at less speed than the stacker apron to raise the shingled flats upstanding on edge, hold down belts to prevent misalignment and a transversely movable segregation rod mounted on a carriage movable horizontally alongside the path of the flats.  The carriage has one-way clutch rollers so that the rod will hold back the leading flat but the carriage will roll freely back to the next slug.  Speed reduction mechanism may be used to advance the carriage at less speed than the apron to compress the line of flats when edge stacking is desirable or necessary.
Patent CA-1223060-A (CA)
Inventor: BLAIN WILLIAM
IPC: H04N3/30
Filed: 1984-11-02
Granted: 1987-06-16
Abstract: ABSTRACT                   IMAGE CORRECTION SYSTEM          A system for providing a view of a scene scanned by an electro-optic framing  sensor  (30)  includes  control  means  (36) operable to cause the sensor to scan the scene in a number of frames each of which is viewed at a different viewing angle. Pickoff  means  (37)  provide  signals  representing  that  viewing angle.    Storage means  (32)  are  provided  to  store  the  image information  derived  from  each  frame.    Circuit  means  33  are provided to transform the image information in each store  (32) so as to remove distortions due to the different viewing angles, and the transformed  image  information  is  stored  in  a  picture store (34).   The contents of the picture store represent a view of the scene as viewed from a predetermined viewing angle.
Patent CA-1216040-A (CA)
Inventor: LEVINSON FRANK H
IPC: H04L12/417
Filed: 1984-12-12
Granted: 1986-12-30
Abstract: RECONFIGURABLE COLLISION AVOIDING SYSTEM, STATION AND   PROTOCOL FOR A TWO PATH MULTIPLE ACCESS DIGITAL    COMMUNICATIONS SYSTEM            Abstract In order to control the transfer of packets of information among a plurality of stations, e.g., digital computers, the instant communications system, station and protocol contemplate first and second oppositely directed signal paths.  At least two stations are coupled to both the first and the second signal paths.  A station includes arrangements for reading (and writing) signals from (and on) each of the two paths.  Signals are read from either path by an arrangement which electrically precedes the arrangement for writing signals on the path.  If the station has a packet to transmit, it can overwrite a busy control field of a packet on either path.  Also having read a packet signal from the path, a logical interpretation may be made within the station as to whether the path is busy or is not busy.  If the path is not busy, the packet may be written on the path by overwriting any signal thereon.  If the path is busy, the station may defer the writing until the path is detected as not busy e.g. by reading a busy control field of another packet.  Here the two paths are coupled to form two ring structures so the packets flow down the path to a destination station.  Eventually all packets will be transmitted and the busy control field loops around to a station which is designated as a control station.  The control station, responsive to detecting that all packets have been transmitted on one of the paths, may transmit a start cycle packet on the one path, responsive to which event a new cycle may be started by initializing each station on the one path and by permitting each initialized station to transmit.  In the event of an electrical open, the system, station and protocol are adapted to reconfigure the system so that the station electrically preceding the open functions as an end station while the station electrically succeeding the open functions as a head station.
Patent CA-1236311-A (CA)
Inventor: PHILLIPS PARKER V
IPC: F25B1/00
Filed: 1985-02-11
Granted: 1988-05-10
Abstract: ABSTRACT OF THE DISCLOSURE           An outdoor air cooled condenser for a refrigeration installation having at least one refrigeration system cir-cuit and including a condenser coil with a heat transfer surface, a condenser housing having air inlet and outlet means for the passage of air across said heat transfer surface, the outlet means including a primary outlet with air flow control means therefor and a plurality of secondary outlets with air displacement means and damper means associ-ated therewith, sensing means for sensing a predetermined condition of refrigerant in the condenser coil, control circuit means for monitoring and integrating the sensed refrigerant condition with respect to a predetermined ideal condition set point value for the refrigeration system circuit and for operating the air flow control means and air displacement means for controlling the amount of air passing through the housing and across the heat transfer surface.
Patent CA-1224380-A (CA)
Inventor: COLAN PETER V
IPC: F15B9/08
Filed: 1985-02-12
Granted: 1987-07-21
Abstract: ABSTRACT        A servo booster mechanism (18) having a piston (48) responsive to movement of a plunger (84) by an input signal for controlling the rate of fluid flow past a seat (82) into a passage (80) for distribution to the surrounding environment.  A first restrictor (75) creates a first pressure drop in a supply fluid pressure Ps to present an operational chamber (46) with fluid at a presure Px.  A  second restrictor (openings 74-76) creates a second pressure drop in fluid pressure Px supplied from the operational chamber (46) to present control chamber (88) with fluid at a pressure Ph.  The difference in pressure  combine to act on the piston (48) and plunger (84) to provide a constant force at stem (26), which provides a feedback to the input member (12), and provide a linkage (22) with a force to hold a position sensor (24) in a stationary position.
Patent CA-1229076-A (CA)
Inventor: LAKE CONNIE
IPC: B65D85/32
Filed: 1985-04-22
Granted: 1987-11-10
Abstract: ABSTRACT           Molded plastic carton universally adapted for various sizes of articles such as eggs and including a tray section having rows of article-carrying cells. A cover section may be hinged to the tray section and has an undersurface provided with spring retainer fingers for resiliently biasing articles into their cells. The arrangement is such as to accommodate a range of different sizes of articles in the cells.
Patent CA-1247583-A (CA)
Inventor: NORDIN LEE
IPC: B02C25/00
Filed: 1985-05-21
Granted: 1988-12-28
Abstract: ABSTRACT   The amplitude of the variations in the power drawn by  a crusher  motor is dependent on the crushing gap in the crusher, other parameters such as ore feed rate etc. remaining constant.  In accordance with the invention, this phenomenon is used to set the crushing gap.   The power drawn by the motor is monitored and the amplitude  of the  variations of  the power  drawn is used as  a basis  for determining whether the existing crushing gap is too great or too small.