baber/WOPTO huggingface dataset:
Patent CA-1193734-A (CA)
Inventor: PETERS JOSEPH H
IPC: H03M3/04
Filed: 1982-11-12
Granted: 1985-09-17
Abstract: ABSTRACT:               Differential pulse code modulation transmission system in which the transmitter and the receiver each comprises a predication circuit for generating a predication signal from the transmitted DPCM-signal.  This predication circuit is in the form of two or more prediction channels 710(i) each consisting of a non-linear network 711(i) followed by a leaky integrator circuit 700(i).  The in-puts of these prediction channels are connected to a com-mon input 701 and the output of each prediction channel is connected to an input of a summing device 712, which produces the desired prediction signal.
Patent CA-1176117-A (CA)
Inventor: BARNES DEREK
IPC: B27N1/02
Filed: 1982-11-19
Granted: 1984-10-16
Abstract: ABSTRACT OF THE DISCLOSURE           An apparatus is disclosed for blending wood strands with a liquid resin.   A process is also dis-closed for continuously blending wood strands with a liquid  resin.    The  apparatus overcomes some of  the problems that exist with present day blenders because it avoids clogging spray nozzles and allows complete coating of the strands with a minimum amount of resin. The apparatus forms a substantially constant flow of wood strands into a first falling curtain of separated wood strands, the first curtain having a predetermined substantially  constant  width,  a first  liquid spray including at  least one spray nozzle located on each side of  the first falling curtain of separated wood strands away from the first falling curtain, adapted to spray liquid resin droplets for the width of the first curtain,  but not substantially beyond;  collector for collecting the first sprayed wood strands and forming them into a second falling curtain of separated wood strands,  the second  curtain  having  a predetermined width, and a second liquid spray including at least one spray nozzle located on each side of the second falling curtain of separated wood strands away from the second falling curtain, adapted to spray liquid resin droplets for the width of the second curtain but not substanti-ally beyond.
Patent CA-1205590-A (CA)
Inventor: MARTIN MICHAEL K
IPC: C10M149/10
Filed: 1982-12-08
Granted: 1986-06-03
Abstract: A B S T R A C T      Lubricating oil additives having both dispersant and viscosi-ty index-improving properties comprise a poly(polyalkenyl aro-matic)nucleus, at least three hydrogenated conjugated diene homopolymer or copolymer arms linked to the nucleus, and at least one polymerized nitrogen containing polar compound arm linked to the nucleus.
Patent CA-1188384-A (CA)
Inventor: KATAKURA MASAYUKI
IPC: H03G11/00
Filed: 1982-12-16
Granted: 1985-06-04
Abstract: NOISE REDUCTION CIRCUIT                  ABSTRACT OF THE DISCLOSURE         In a noise reduction circuit comprising a combining circuit which generates a combined signal in response to signals supplied thereto, a main channel which supplies an information signal substantially unchanged to the combining circuit, and an auxiliary channel which receives the information signal and which supplies a modified information signal to the combining circuit for combining with the unchanged information signal, the auxiliary channel includes a high pass filter with a variable cut-off frequency which generates a filtered output signal in response to the information signal supplied thereto, a voltage-current converting circuit which converts the voltage level of the filtered output signal to a current and which supplies the current to the combining circuit, and an amplitude limiting circuit which limits the amplitude of the current supplied to the combining circuit.
Patent CA-1196703-A (CA)
Inventor: BAKER LEWIN T
IPC: H04L5/14
Filed: 1982-12-16
Granted: 1985-11-12
Abstract: METHOD FOR DIGITAL DATA TRANSMISSION WITH        BIT-ECHOED ARBITRATION             Abstract of the Disclosure In a digital data communications system having a plurality of slaved data transceivers transmitting data to, and receiving data from, a master station, the master station classifies a received signal, in each of a multiplicity of bit time intervals as one or the other of the pair of binary signal states.          The received binary signal state is echoed to all of the slaved stations, to cause those stations which did not previously transmit that binary state to cease transmitting data.  Those slave stations which transmitted the echoed previous bit binary state then transmit the next bit of data, which is again echoed.  Slaved stations receiving bit echoes which are different from the previous bit sent will know that there has been a collision and that the master station did not receive their bit of data, whereby the number of slave stations transmitting is reduced, in successive bit time intervals, until only one slave station remains transmitting.          The initial portion of the message of the one remaining station need not be repeated, whereby system time is not lost.
Patent CA-1204658-A (CA)
Inventor: TOBITA CHUO
IPC: B65G47/90
Filed: 1982-12-24
Granted: 1986-05-20
Abstract: ABSTRACT OF THE INVENTION     A shearing machine for cutting or shearing sheet-like workpieces such as sheet metal is described.  The shearing machine is provided with means for removing scraps produced from the workpieces during shearing operations.
Patent CA-1158193-A (CA)
Inventor: PLETT BENJAMIN
IPC: B65G21/12
Filed: 1983-02-11
Granted: 1983-12-06
Abstract: "COUPLING GRAIN AUGERS"          ABSTRACT OF THE DISCLOSURE       A coupling between two auger conveyor tubes is formed from three linkages providing rotation about fixed axes arranged mutually at right angles.  The coupling is formed by a pair of coaxial rings coupled by pivot pins, a second pivot pin connection and a rotational sliding fit connection between a spout of the first auger and one of the sleeves or between an inlet opening of the second auger and one of the sleeves.  The coupling arrangement allows the use with a main auger of a feed auger which can be pivoted relative to the inlet of the main auger to a storage posi-tion and to various working positions to accommodate vary-ing ground conditions and varying positions of discharge of the material to be conveyed.
Patent CA-1201170-A (CA)
Inventor: KOROWITZ SIMON
IPC: H04L12/433
Filed: 1983-05-02
Granted: 1986-02-25
Abstract: ABSTRACT     A communications system with a local network having two metallic cables providing redundant channels between stations of a group with redundant optical rings forming a highway interconnecting those networks.  An optical-electrical interface connects the networks and the ring.     This interface includes an optical detector producing a corresponding electrical signal, an optical transmitter which repeats the detected message, and a control element connecting the output of the detector with the transmitter.  A control signal supplied over one metallic line from the station which is transmitting to its interface causes the control element to disconnect the detector and transmitter to prevent operation of the combination as a repeater.  The transmission is then supplied over another metallic line from the station to the transmitter and thence around the ring until it is converted to an electrical signal at the corresponding detector.  The resulting electrical signal is then conducted to the transmitting station over still another metallic line for checking as a means for determining if the ring is complete.
Patent CA-1214892-A (CA)
Inventor: MCROWE ARTHUR W
IPC: C08L21/00
Filed: 1983-05-02
Granted: 1986-12-02
Abstract: ABSTRACT OF THE DISCLOSURE Vinyl halide polymer compositions containing smoke retarding amounts of copper oxalate and an amine molybdate that form a carbonaceous char on burning do not exhibit char afterglow when such compositions also contain less than 20 weight parts of a Group IIA alkaline earth metal carbonate; improved rigid vinyl hallde polymer compositions, substantially free of liquid ester type plasticizers, also containing styrene copolymer process modifiers, copolymers of ethylene and vinyl acetate and graft copolymers of methacrylates, butadiene, and styrenes (MBS) polymers, are disclosed; the compositions find application in the mass transit and aircraft industries.
Patent CA-1228355-A (CA)
Inventor: SCHURTER ROLF
IPC: A01N47/36
Filed: 1983-05-24
Granted: 1987-10-20
Abstract: N-Phenylsulfonyl-N'-pyrimidinylureas and N-phenylsulfonyl-N'-triazinylureas Abstract N-Phenylsulfonyl-N'-pyrimidinylureas and N-phenylsulfonyl-N'-triazin-ylureas of the general formula I                                        (I), wherein A   is a radical of the formula -C?C-R, m   is 1 or 2, E   is the methine group or nitrogen, Z   is oxygen or sulfur, R   is hydrogen; unsubstituted or substituted, branched or unbranched C1-C9alkyl; unsubstituted or substituted C3-C9cycloalkyl; unsubsti-tuted or substituted phenyl; or an unsubstituted or substituted 5- or 6-membered aromatic heterocyclic ring, R1  is hydrogen, halogen, C1-C5alkyl, C2-C5alkenyl or a radical -Y-R5, R2  is hydrogen, halogen, C1-C5alkyl, C2-C5alkenyl, C1-C4haloalkyl, or a radical -Y-R5, -COOR6, -NO2 or -CO-NR7-R8, R3 and R4, each independently of the other, are hydrogen, C1-C4alkyl, C1-C4alkoxy, C1-C4alkylthio, C1-C4haloalkyl, C1-C4haloalkoxy, C1-C4haloalkylthio, halogen, C2-C5alkoxyalkyl, -NR9R10 or -O-CH2-CH2-NR9R10, R5 and R6, each independently of the other, are C1-C5alkyl, C2-C5alken-yl or C2-C6alkynyl, C1-C5haloalkyl, C2-C5haloalkenyl or C2-C6alk-oxyalkyl, R7 and R8, each independently of the other, are hydrogen, C1-C5alkyl, C2-C5alkenyl or C2-C6alkynyl, R9  is hydrogen, methyl or ethyl, R10 is hydrogen, C1-C4alkyl, C1-C4alkoxy, methoxymethyl, cyanomethyl, cyanoethyl, C3-C5alkenyl or C3-C6alkynyl, and Y   is oxygen, sulfur, a sulfinyl or sulfonyl bridge and the salts of these compounds with amines, alkali metal bases or alkaline earth metal bases or with quaternary ammonium bases, have good preemergence and postemergence selective herbicidal and growth regulating properties.
Patent CA-1202270-A (CA)
Inventor: PIERSON ROBERT A
IPC: B61B10/02
Filed: 1983-07-04
Granted: 1986-03-25
Abstract: CONVEYOR AND PUSHER ASSEMBLY THEREFOR            ABSTRACT        A conveyor comprising a power track supporting an endless chain to which pusher assemblies are attach-ed, a load track parallel to the power tracks, and car-riers mounted on the load track, each carrier having a driving member releasably engageable by a pusher member of a pusher assembly.  The conveyor is arranged in a vertical loop having an upright portion in which the power track is above the load track and an inverted portion in which the power track is below the load track.  Each pusher assembly includes a pivoted pusher member, a pivoted counterweight member and a one-way connection between these members, the pusher member be-ing biased by its mass into engageable relation with a carrier driving member on the upright portion of the conveyor and being biased into such engageable rela-tionship by the mass of the counterweight member on the inverted portion of the carrier.
Patent CA-1196690-A (CA)
Inventor: GAY DON D
IPC: G01N30/74
Filed: 1983-07-11
Granted: 1985-11-12
Abstract: MICRO-COLUMN PLASMA EMISSION LIQUID CHROMATOGRAPH         ABSTRACT      The plasma source unit that includes a quartz capillary tube having an inlet, an outlet for off gas and a pair of spaced elect rodes defining a plasma region in the tube.  The inlet is connect-ed  to and  adapted  to  receive  eluant  of  a micro-column  liquid chromatograph along with a stream of plasma-forming gas.  There is an opening through the wall of the capillary tube penetrating into the plasma region.  A soft glass capillary light pipe is disposed at the opening, is connected to a direct current spectrometer, and is adapted to transmit light passing from the plasma region to the spectrometer.
Patent CA-1200240-A (CA)
Inventor: SAUTER ROBERT
IPC: C07D513/14
Filed: 1983-08-17
Granted: 1986-02-04
Abstract: ABSTRACT OF THE DISCLOSURE     Compounds of general formula I       (I) (wherein A represents a group of formula   wherein R represents a hydrogen atom or an alkyl, alkenyl, alkanoyl, aralkyl or alkoxycarbonyl group) and acid addition salts thereof.      The new compounds may be prepared using methods conventionally used for analogous compounds, and examples of such methods are described.      The new compounds possess valuable pharmacological properties, in particular an effect on the heart and circulation.  Pharmaceutical compositions containing the new compounds as active ingredients are described.
Patent CA-1198817-A (CA)
Inventor: BUTTS LAWRENCE D
IPC: E05B49/00
Filed: 1983-08-29
Granted: 1985-12-31
Abstract: ABSTRACT      Keycard reader has an entry slot    oriented at an angle to the vertical of about 25° and a vertical lower portion so that a flexible keycard C is bent as it is inserted.  This provides a convenient entry, precludes the malicious insertion of foreign objects into the reader to render it inoperative, blocks light from entering the reader, and makes it unnecessary to provide an enlarged opening in the door to receive the lock.
Patent CA-1213238-A (CA)
Inventor: CHOI BYUNG C
IPC: C10G55/04
Filed: 1983-09-02
Granted: 1986-10-28
Abstract: PROCESS FOR VISBREAKING RESID DEASPHALTENES            ABSTRACT:         A process is described for visbreaking a deasphalted hydrocarbon oil and subsequently reblending the recovered asphaltene fraction to produce a product of low viscosity and pour point and requiring less cutter stock oil as compared to conventional visbreaking processes.
Patent CA-1250146-A (CA)
Inventor: RHOADES LAWRENCE J
IPC: B24B31/00
Filed: 1983-09-07
Granted: 1989-02-21
Abstract: ABSTRACT OF THE DISCLOSURE      The invention relates to honing, polishing, reducing, or otherwise abrading, in which improved means and methods are employed for abrasion of workpieces in general, and at least selected internal portions of workpieces such as bores, passages, and cavities in particular.  In general, the abrasion is accom-plished by the use of a flowable abrasive medium, with particular embodiments using a visco-elastic, rheopectic abrasive medium.
Patent CA-1203197-A (CA)
Inventor: HART FREDERICK H
IPC: G02B1/11
Filed: 1983-09-21
Granted: 1986-04-15
Abstract: A low emissivity coating on a transparent substrate of glass or plastics materila is produced by cathode sputtering an anti-reflection metal oxide layer over the silver in the presence of oxygen or an oxidising gas, wherein a small amount of an additional metal other than silver is sputtered onto the silver before the overlying anti-reflection metal oxide layer is applied. The process produces a new low emissivity coated product comprising a glass or plastics substrate with a low emissivity coating comprising a silver layer, a small amount of additional metal dispersed non-uniformly in the silver layer and possibly extending over the silver layer, and an overlying anti-reflection metal oxide coating.
Patent CA-1251881-A (CA)
Title: Lithographic water based fountain solution  concentrates
Inventor: THIEBAUT BERNARD
IPC: C09D5/20
Filed: 1983-11-25
Granted: 1989-03-28
Abstract: Abstract Lithographic Water Based Fountain Solution Concentrates Lithographic fountain solution concentrates which are combined with water to form improved fountain solutions.  The concentrates contain specific quantities of buffer salts resulting in improved printing process characteristics.  The buffer salts are the salts of polycarboxylic acids and organic bases such as amines.  The use of alcohol in the fountain solutions is eliminated or substantially reduced.
Patent CA-1226857-A (CA)
Inventor: SAKAMOTO KATSUJI
IPC: B65H59/38
Filed: 1983-12-23
Granted: 1987-09-15
Abstract: ABSTRACT OF THE DISCLOSURE          A dancer roller device for controlling the tension of  a  wire,  thread  or  the  like,  wherein  the  tension  is maintained  constant  at  all  times  on  the  output  side, independent  of  fluctuations  in  the  tension on the  inputs side.    First  and  second  sets  of  rollers  are  arranged parallel to one another, with the first set being fixed and the second set being mounted on a slider.  The wire, thread or the like is laid over the two sets of rollers in a zig-zag manner, alternately passing around ones of the first and second rollers.  A constant-tension spring urges the slider away from the first set of rollers.  The moments of inertia of the first and second rollers, the masses of the rollers, the mass of the slider, the radii of the first and second rollers, and the number of passes of the wire, thread or the like between the first and second rollers are set such that the tension at the output side is always constant.
Patent CA-1218803-A (CA)
Inventor: ESTADELLA MARIA ASUNCION S
IPC: A42B3/00
Filed: 1984-01-12
Granted: 1987-03-10
Abstract: ABSTRACT OF THE DISCLOSURE:          A collapsible protecting helmet with inside padding and closing fastener, which comprises two supplemental portions:  a crown and a shield, both being mutually joined by two coaxial pivots and further com-prising a holding mechanism intended to releasably secure the helmet in use position.  The crown and shield are dimensioned so that when both are rotated around the pivots, they engage one inside the other in a concealed position, thus remarkably reducing the general size of the assembly.
Patent CA-1211181-A (CA)
Inventor: CLARK MICHAEL G
IPC: G06F3/041
Filed: 1984-02-08
Granted: 1986-09-09
Abstract: ABSTRACT INTERACTIVE DISPLAY SYSTEM A system whereby a user can interact directly with a display by touching the screen of the display with a probe.   The screen is covered by individual resistive tracks each of which is energized by a different source signal.   Position co-ordinates of probe contact with the screen are determined simultaneously using probe circuitry for signal identification and for signal level measurement. Display address signals may be used for energisation, eliminating the need for a separate source.   The tracks may be formed on the surface of the screen rather than on an overlay, and to conserve the number of source connections required, may be of folded configuration. Each resistive track is terminated by a diode switch    A comparator in the probe circuit is used to compare probe detected voltage against a reference level.  The comparator output is used to control the bias on each of the diode switches.   When reference level is exceeded, diode bias is changed, the tracks are changed from a floating voltage level to a conducting state, and co-ordinate measurement is enabled.
Patent CA-1223442-A (CA)
Inventor: THOMAS GERALD A
IPC: A01M23/26
Filed: 1984-03-26
Granted: 1987-06-30
Abstract: ABSTRACT       A padded leghold trap of the pivoting jaw type includes recessed portions of the jaws in which respective pads are disposed.  The pads each have concave facing surfaces with an inner edge that barely touches the inner edge of the other pad in the sprung position of the jaws, leaving the remainder of the concave facing surfaces mutually spaced.  A trapped animal is held between the padded jaws which spring closed and traps the animal's leg without breaking the leg or causing edema.  Attempts by the trapped animal to pull its trapped limb from between the jaws causes the radially inner pad edges to roll over toward the limb and thereby increase the retention forces.  A retainer for the pad is disposed over an access slot in the pad, which access slot is provided to deploy the pad on the jaw.  The retainer includes a bent lip which deforms the pad toward the jaw to prevent the pad from being pulled off the jaw by a trapped animal.  An anchor chain is secured centrally of the trapped frame to assure that forces exerted by a trapped animal in trying to escape are directed generally perpendicular to the jaws to thereby minimize damage to the animal.
Patent CA-1220641-A (CA)
Inventor: PAGANO AMLETO
IPC: E05B21/00
Filed: 1984-03-28
Granted: 1987-04-21
Abstract: ABSTRACT OF THE DISCLOSURE          A safety lock with gorge levers, intended to be operated by a web-type key, in which the consent stud, connected to the plate with latches and traversing the windows with opposite teeth of the gorge levers, instead of being prismatic as usual, has an outline with projections and recesses depending on the shape of the key web and on the configuration of the windows of the gorge levers, whilst these latter are identical for locks intended to be operated by dif-ferent keys, whereby the thereby-contoured consent stud is the only element differentiating each specific lock.  Preferably, the shaped consent stud is interchangeably mounted onto the plate with latches, whereby the lock can be easily adapted to be operated by a different key, by simply replacing the interchangeable-shaped consent stud.
Patent CA-1225200-A (CA)
Inventor: FUJIE AKIRA
IPC: C08L23/04
Filed: 1984-04-04
Granted: 1987-08-04
Abstract: ABSTRACT OF THE DISCLOSURE      The present disclosure is directed to foam particles of a linear, uncrosslinked ethylenic resin which can be expansion molded by heating in its uncrosslinked state.          The present disclosure is also concerned with a process for preparing foam particles of a linear uncrosslinked ethylenic resin and a process for the in-mold foam mold-ing of said resin particles.
Patent CA-1233940-A (CA)
Inventor: WARD MARY V
IPC: C08G65/48
Filed: 1984-05-04
Granted: 1988-03-08
Abstract: Abstract "Method of Increasing Molecular Weight of Poly (Aryl Ethers)"    A method of increasing the molecular weight of a poly (aryl ether) comprising providing a mixture of (1) at least one polyaryl ether comprising polymer chains having end groups selected from groups of formula -Ar-X, preferably -Y-Ar-X and -Ar-OX and (2) a reagent having nucleophilic activity selected -from a) alkaline salts of Group I or Group II metals (as herein-after defined) and b) reagents have radicals -X and -OZ, reactive respectively with the end groups -Ar-OZ and -Ar-X, wherein when the end group is -Ar-X the reagent is either a difunctional reagent having either both end groups in the form of reactive -OZ groups or a difunctional reagent having one reactive -OZ group and one reactive -X group and when the end group is -Ar-OZ the reagent is a difunctional reagent having reactive end groups -X, and wherein Ar represents an arylene radical, preferably a phenylene radical, X is a monovalent radical capable of nucleophilic displacement from Ar, preferably selected from halogen, nitrile (CN) or nitro (NO2) radicals, Y is an electron withdrawing group, which when Ar is phenylene is positioned ortho or para, preferably para to the X group and when Ar is not phenylene, X and Y are attached to the Ar group by parallel and oppositely directed bonds and Z is a univalent metal, and heating the mixture to a temperature above the melting point of the polymer until a desired increase in molecular weight has occurred.  The method is useful for preparing fibre reinforced compositions and particularly for the process of impregnating fibre structures.
Patent CA-1254006-A (CA)
Inventor: HAFEZ MAHMOUD M
IPC: C10G73/12
Filed: 1984-06-01
Granted: 1989-05-16
Abstract: ABSTRACT OF THE DISCLOSURE            A method for the production of regenerated cellulose membranes comprising the steps of a)  dissolving a cellulose material to form a solution;   b)  casting the cellulose solution into a film;   c)  coagulating the cellulose solution film using an alkali alcoholic solution;   d)  washing the coagulated cellulose film in an alcohol;   e)  regenerating the cellulose film using acidic alcohol solution;   f) washing the regenerated cellulose mem-brane using an alcohol.     The regenerated cellulose thus formed may be dried, if desired, preferably without a softener.            The  regenerated  cellulose membrane thus produced,  possesses higher flux and superior selec-tivity for organic liquid separation than regenerated cellulose membranes prepared employing aqueous solu-tions in steps b through e above and is most advan-tageously employed for the recovery of polar dewaxing solvents  (e.g.  ketones  and  mixed  ketone/aromatic solvents) from dewaxed oil.