baber/WOPTO huggingface dataset:
Patent CA-2139199-A1 (CA)
Title: Removing hydrogen sulphide from a gas stream
Inventor: STEGENGA SANDER
IPC: C01B17/04
Filed: 1994-12-28
Abstract: Removing hydrogen sulphide from a gas stream (4) comprises contacting the gas stream in the presence of free oxygen at a temperature in the range of from the dew point of water to the dew point of elemental sulphur in two catalytic reactors (1 and 2) with catalytic material to obtain elemental sulphur which i.s deposited on the catalytic material and a purified gas stream, wherein the gas stream is contacted in the first catalytic reactor (1) with catalytic material in the presence of a sub-stoichiometric amount of free oxygen to obtain a partly purified gas stream (20d), which partly purified gas stream (20d) is contacted in the second catalytic reactor (2) in the presence of an additional amount of free oxygen with catalytic material to obtain the purified gas stream (5).
Patent CA-2141096-A1 (CA)
Inventor: DAUGHERTY DAVID W JR
IPC: B60D1/02
Filed: 1995-01-25
Abstract: A slackless drawbar comprising a female member with one end engaging an end of a car body center sill and another end extends outwardly from the center sill end.  A cavity formed in such other end defined by inner surfaces of the back wall, top wall and pair of side walls and open at a bottom and outer end thereof.  Openings are formed through each side wall.  A male member includes a first end movably disposed in such cavity and a second end.  An aperture is formed through such male member first end.   A portion of a spherical shaped member is disposed in such aperture.  A pair of shaft members extend from outer surfaces of such spherical member.          A portion of each shaft member is disposed in respective side wall openings.  Each shaft member has a flat surface formed thereon.  A race having a portion thereof disposed in such aperture and secured to such male member.  The race inner surface is disposed around the spherical member.  A pair of wedges, a surface of one wedge engages one of such shaft members flat surfaces and another surface of such one wedge engages a flat vertical surface formed on one side wall adjacent a portion of such first opening and a surface of the other wedge engages another of such flat surfaces formed on such shaft members and another surface of such another wedge engages a flat vertical surface formed on a second side wall adjacent a portion of such second opening. A securing device secures such second end of such male member to a second end of another male member.
Patent CA-2142319-A1 (CA)
Title: Method of detecting a film with optical detecting means in photographic processor
Inventor: EHARA TAKUJI
IPC: G01V8/12
Filed: 1995-02-10
Abstract: In a photographic processing machine, a method for detecting the presence of a film without the need for a reference film. A light receiver has an output with a reference level. A higher reference level is temporarily set, and a light emitter is then increased in illumination until the higher reference level is reached in the light emitter. The light emitter is then preset. As a result, the light emitter has a margin of illumination over the reference level.
Patent CA-2143808-A1 (CA)
Inventor: NOWAK MICHAEL T
IPC: B41C1/055
Filed: 1995-03-02
Abstract: Lithographic printing members suitable for imaging by means of laser devices that preferably emit in the near-infrared region. Laser output ablates an absorbing (preferably titanium) layer (404) sandwiched between an oleophobic or hydrophilic layer (408) and a polyester layer (400), resulting in an imagewise pattern of features on the member. The image features exhibit an affinity for ink or an ink-abhesive fluid that differs from that of unexposed areas. The member may be laminated to a plastic or metal support; in the latter case, the metal may be chosen or processed to reflect imaging radiation. <IMAGE>
Patent CA-2144654-A1 (CA)
Title: Tool steel compositions
Inventor: BOURRAT JEAN
IPC: C22C38/22
Filed: 1993-10-05
Abstract: Tool steel composition comprising, expressed by weight, 2.5-5.8 % Cr, up to 1.3 % V, up to 0.8  % Si, when the Mo content ranges from 0.75 to 1.75 % and up to 0.35 % Si when the Mo proportion ranges from 2.5 to 3.5 %, 0.3-0.4 % by weight of C. The invention also concerns the preparation and forming of such steels and parts obtained.
Patent CA-2146197-A1 (CA)
Inventor: PINCELOUP DIDIER
IPC: F24C7/02
Filed: 1995-04-03
Abstract: Le four tunnel comprend une enceinte allongée reliée à un sas d'entrée respectivement à un sas de sortie et traversée par un convoyeur transportant les aliments à cuire. L'enceinte est délimitée par une paroi formant fond, une paroi formant plafond et deux parois latérales dont l'une est pourvue d'une porte donnant accès à l'intérieure de l'enceinte L'enceinte est divisée en plusieurs chambres de cuisson successives séparées les unes des autres dans la partie supérieure de celles-ci, chaque chambre étant associée à plusieurs moyens de chauffage différents, y compris des moyens à microondes. Les moyens à microondes de chaque chambre comprennent plusieurs applicateurs pourvus d'organes d'émission de microondes disposés dans la paroi formant plafond de la chambre de telle manière qu'un organe d'émission de microondes soit décalé par rapport à un organe d'émission de microondes voisin, dans le sens d'avancement des aliments. Fig. 1
Patent CA-2146598-A1 (CA)
Inventor: GOPALKRISHNAN SRIDHAR
IPC: C11D3/37
Filed: 1995-04-07
Abstract: A laundry detergency boosting polymer blend additive is made up of: a) a graft copolymer of polyalkylene oxide with vinyl ester, the graft copolymer having a molecular weight within the range of about 5,000 to 50,000; and b) at least one polycarboxylate selected from the group consisting of acrylic/maleic acid copolymers having a molecular weight within the range of about 1,000 to 100,000, and polyacrylic acid having a molecular weight of from about 1,000 to 100,000. The polymer blend additive is effective in water with an ion hardness in the range of about 50 to 500 ppm. The detergency boosting performance of the polymer blend additive is maintained or increased as the concentration of the hardness ions in water is increased.
Patent CA-2146721-A1 (CA)
Title: Lining material
Inventor: CANT RICHARD S
IPC: F16L55/165
Filed: 1995-04-10
Abstract: Tne present invention provides;-a lining materlal comprising a flexible fabric tube which is a circularly knitted fabric comprising a ground and a plurallty of tufts of fabric projecting from the ground on the inside thereof, and a flexible sleeve within the tube, the flexible sleeve being substantially impervious to at least one of a gas and a liquld and being capable of being inflated in use to generally radially outwardly bear on the tube to force the tube in use into general conformity within an orifice.
Patent CA-2152755-A1 (CA)
Title: Isopropyl alcohol and diisopropyl ether production from crude by-product acetone in one step
Inventor: TAYLOR ROBERT JOEL JR
IPC: C07C41/14
Filed: 1995-06-27
Abstract: Disclosed is a one-step method for synthesis of ethers from mixtures of acetone and t-butyl alcohol which comprises reacting an acetone-rich feed over a bifunctional catalyst comprising 5-45% by weight of a catalyst consisting essentially of a hydrogenation catalyst selected from the group consisting of one or more metals selected from the group consisting of IB, IIIB or VIII of the Periodic Table and a heteropoly acid on a 55%-95% of the total weight of the catalyst of a support comprising a compound selected from the group consisting of: a.   a metal phosphate; b.   5 to 95% by weight metal phosphate supported on 95 to 5 wt% Group III or IV oxide; and c.   a large pore silicoaluminophosphate.
Patent CA-2155216-A1 (CA)
Inventor: GROSSER BRIAN K
IPC: C08K3/04
Filed: 1994-02-22
Abstract: Laser-writable, black-colored blends of carbonate and polyester resins are provided by the incorporation of a black colorant formulation comprising carbon black and a fatty acid metal salt. Zinc stearate is a preferred fatty acid metal salt. The black colored resin blends can be inscribed using standard YAG lasers and maintain an excellent balance of other properties including surface aesthetics, physical properties, heat resistance chemical resistance and processability.
Patent CA-2155624-A1 (CA)
Title: Drain valve
Inventor: PORFIDO ERASMO
IPC: E03B7/08
Filed: 1995-08-08
Abstract: A drain  valve  (1)  for  emptying plastic  lines, particularly water lines, comprises a housing having different hollow-cylindrical  regions  (3,4,6)  and  is  composed  of  a thermoplastic plastic.  The housing is integrally or firmly connectable to the line component part (22) at one end of the drain valve.  A threaded piece (7) is arranged at the housing (2) at the other end of the drain valve (1), whereby the thread (8) lies coaxially with the longitudinal axis (9) of the drain valve.  A spindle [or: stem]  (11) having a piston-like valve body (11a) is introduced in this thread (8).  In the closed position, the valve body (12) has its one piston face (12) lying against the sealing face of the housing (13).
Patent CA-2156750-A1 (CA)
Inventor: STEFFANSON PAUL
IPC: E02D29/00
Filed: 1995-08-21
Abstract: A method of constructing a barrier using vehicular tires is described.   Firstly, dig a shallow elongate trench in a groundsurface.  Secondly, place a plurality of vehicular tires in  the  trench  with  each  tire  projecting  above  the groundsurface and each tire being in contact with adjacent tires thereby forming an unbroken row which serves as a barrier.  With this method, a barrier can be constructed very rapidly and comparatively inexpensively.
Patent CA-2156819-A1 (CA)
Title: Method for controlling a process by measurement of wood chips
Inventor: BACKLUND TORBJOERN
IPC: G01N1/20
Filed: 1994-03-02
Abstract: A method to control a manufacturing process for cellulose, pulp or similar by measuring the bulk density of the chips supplied to the process. A representative volume of the supplied chips are sampled and supplied to a measuring method, during which the sampled volume is measured as to dimensions of the chips contained in the volume, the chip bulk density being possibly calculated by means of the measured values. The thus calculated chip bulk density is used to control the forthcoming chip treatment in the process.
Patent CA-2160534-A1 (CA)
Title: Fuel modification method and apparatus for reduction of pollutants emitted from internal combustion engines
Inventor: SUNG SHIANG
IPC: F02M1/16
Filed: 1994-03-09
Abstract: A method for controlling exhaust gas emissions from an engine (16) includes ex-tracting a light distillate fuel (Fd) from con-ventional gasoline or other liquid hydrocar-bon fuel and supplying the engine with the light distillate fuel during an initial opera-tion period of the engine. This reduces the oxidizable pollutants in the engine exhaust during a cold-start period before a catalytic converter (22) used to abate pollutants in the engine exhaust gases has not yet attained its operating temperature. After the catalytic converter (22) has been sufficiently heated, the fuel supply to the engine (16) is switched to gasoline or other liquid hydrocarbon fuel. Both the distillate fuel (Fd) and the liquid hydrocarbon fuel may be passed through a heated cracking catalyst bed (30) to crack the fuel fed to the engine.
Patent CA-2160572-A1 (CA)
Inventor: MONS JOHANNES JAN
IPC: H03M13/35
Filed: 1995-02-14
Abstract: A record carrier (36) has a data signal recorded on it which represents data words, added codewords of a first type and added codewords of a second type. The added codewords of the first type have a predefined first relation to the data words. The added codewords of the second type have a second predefined relation to data words and added codewords of the first type. The added codewords of the first and the second type make an error correction possible according to a given algorithm. The data signal is divided into blocks (1) which contain each a control portion (20) with control data and a data portion (21) with user-supplied data. The data words and added first and second codewords are ordered and interrelated in a manner in which the order of the data words, once the error correction has been effected according to the given criterion, is not affected. Furthermore, the application proposes a device for reading a data signal recorded on the record carrier (36). The device comprises first and second error correcting means (45, 47) for correcting errors in the data words in response to the added codewords of the second type and first type. The device further comprises decoding means (50) for separating the control portions (20) of the blocks (1) in response to the data words produced by the first correcting means (45), whilst the results generated by the second correcting means (46) are discarded.
Patent CA-2161060-A1 (CA)
Title: Protector for remote control apparatus
Inventor: RIBEIRO MARIO FERNANDES
IPC: H01H9/00
Filed: 1995-10-20
Abstract: A  protector  against  bumps  for  remote  control apparatus  of  the  type  used  with  audio  and  television e~uipment.  Such protector comprises a substantially paralle-pipedic cover, of substantially rectangular basis, the side walls of which are formed by individual air chambers, having one of its basis an opening for the insertion of the remote control apparatus,  and being at least one of its basis transparent.  The protector made of a flexible material.
Patent CA-2162304-A1 (CA)
Title: A method and an arrangement for sound reconstruction during erasures
Inventor: BOLT JACOB HENDRIK
IPC: G10L19/005
Filed: 1995-11-07
Abstract: Digital audio or sound information such a speech is typically transmitted in bursts or packets containing a plurality of digitized sound samples. For the reconstruction of such a digital data stream in the presence of erasures or mutes, a method and an arrangement is disclosed, in which at a data receiver having an audio processing portion a plurality of successively data bursts outputted from a speech buffer are stored into a cyclic buffer. During an erasure, the data stream is reconstructed by outputting into the speech buffer stored bursts in their reversed order of storage. By reusing the bursts while reversing the sequence of the digitized sound samples, a virtually click free reconstruction of the data stream is obtained. An embodiment for use with a cordless telephone system is described.
Patent CA-2164522-A1 (CA)
Inventor: DUONG MINH HOANG
IPC: H03J3/08
Filed: 1995-02-23
Abstract: A receiver (100) has a channel scan mode of operation and a communication mode of operation. In the channel mode of operation, the passband of a filter (145, 144) is narrowed relative to the passband of the filter in the communication mode.  According to another aspect of the circuit, a local oscillator (112, 142, 157) is selectively phase locked to an internal clock (137) during channel scanning and locked to the incoming signal during a communication  mode operation.
Patent CA-2166193-A1 (CA)
Title: A new catalyst for ring-opening metathesis polymerization
Inventor: HARRINGTON BRUCE ALLAN
IPC: C08G61/06
Filed: 1994-06-30
Abstract: This invention relates to ring-opening metathesis polymerizations of cyclic olefins utilizing a transition metal catalyst system comprising a cyclopentadienyl transition metal compound and a non-coordinating anion.
Patent CA-2166434-A1 (CA)
Title: Method and apparatus for providing programming information
Inventor: NOGUCHI FUJI
IPC: H04N7/24
Filed: 1996-01-02
Abstract: An innovative but easy to use on-line guide is provided to provide the user of a multiple channel television broadcast system a wealth of programming information in a simple format that is easy to understand. The guide enables the user to easily select a particular program to watch.  In particular, when the guide is presented to the user, the guide covers only a portion of the actual television screen or display.  The remaining portion of the television screen continues to broadcast the audio and video of the currently selected program.  As a user scans through the guide and moves the pointer from one station to another, the system responds by automatically tuning to the channel pointed to by the pointer and provides the audio and displays the video in the portion of the screen not covered by the guide.  Furthermore, a written description of the program currently broadcasted on a station that the cursor currently points to is also shown.  In addition, the system provides an innovative mechanism to enable the user to scan program information of channels that the user has designated as his favorite channels.      In another embodiment, the present invention presents a program list that is oriented according to the program instead of the channel.
Patent CA-2167934-A1 (CA)
Title: Low noise vehicle wheel
Inventor: TURBA EGON
IPC: B29D30/04
Filed: 1994-07-29
Abstract: The invention relates to a configuration of vehicle wheels, in particular of motor vehicle wheels with tires, which reduces noise. Further, the invention relates to a process for the further development of conventional vehicle wheels in accordance with the invention. The hollow space (6; 6a, 6b) formed by a tire (10) and the wheel rim (1) of a vehicle wheel is, in accordance with the invention, filled with a filler material which is granular, shape-retaining and temperature-resistant. The filler material brings about a damping of the resonance effect of the hollow space and thus reduces substantially the sound radiation of the vehicle noises. The hollow space may be completely filled by means of the filler material in accordance with the invention. Along with the filler material, the hollow space is filled in known manner with a filler gas, in particular compressed air. The static and dynamic properties of the vehicle tires are hardly noticeably altered by the filling. Further, it is possible to provide a filling chamber (6b) specially for the filler material in accordance with the invention. A second filling chamber (6a) is filled in known manner with the filler gas and the filling pressure of the filler gas is transmitted via a membrane (8) to the filler material and thus to the walls of the tire (10).
Patent CA-2169901-A1 (CA)
Title: Print head and method of making a print head by one-shot injection molding
Inventor: BRANDON FRED YOUNG
IPC: B41J2/16
Filed: 1996-02-20
Abstract: A print head having an ink reservoir therein is made by forming, in a one-shot plastic injection molding step, a rigid monolithic frame comprising high melt temperature material having an opening therein extending from a first side to a second side, and first and second bonding surfaces surrounding the opening and facing the first and second sides, respectively.  First and second thin flexible films are adhesively secured to the first and second bonding surfaces, respectively.  The adhesive material may be a hot melt adhesive or dry adhesive films pre-formed to the shape of the bonding surfaces.  By securing the flexible films to the bonding surfaces adhesively, rather than by heat staking, it is not necessary to form the frame of different materials during two separate molding steps.
Patent CA-2172024-A1 (CA)
Inventor: EINBINDER ELI
IPC: H04N7/18
Filed: 1996-03-18
Abstract: A surveillance system for safeguarding the privacy of a subject while producing an evidentiary record of the events which took place in situations requiring a degree of privacy.   The system functions within an activity area, or office, containing a subject and a practitioner, and includes one or more video cameras viewing the practitioner or one or more audio microphones exposed to the activity area, where the video cameras and microphones have video and audio output signals respectively.   The system also includes a single recorder for recording the outputs from the cameras or microphones serially, or in random order, at random times and only for brief intervals.  The system may also be used with a single camera or microphone with random monitoring for brief intervals.  The system also includes a controller for enabling the cameras or microphones and controlling the operation of  the  recorder;  the  controller  is  inaccessible  to  the practitioner.
Patent CA-2175345-A1 (CA)
Title: Paper money conveying apparatus
Inventor: TAKEMOTO TAKATOSHI
IPC: A63F7/02
Filed: 1994-12-09
Abstract: Guide passages I for guiding bills S to a main transport passage M are formed. An endless belt 25 coming in contact with one face of each bill S is placed in the main transport passage. Feed rollers 70 coming in contact with one face of each bill entering the guide passages, swing arms 74 swingably attached to a rotating shaft 73 of the feed roller, pressure rollers 27 rotatably attached to the swing arms so as to come in contact with the feed rollers 70, and coil springs 75 for urging the swing arms 74 in a direction approaching the endless belt 25 are provided upstream of the main transport passage when the guide passage I is considered to be the center of the main transport passage M. The feed roller 70 comes in contact with the pressure roller 27 rotated by motion of the endless belt 25 and is rotated by rotation of the pressure roller for transporting bills in the guide passage.
Patent CA-2176405-A1 (CA)
Title: Loop-back test system using a suppressed ringing connection
Inventor: GARLAND STUART MANDEL
IPC: H04M11/00
Filed: 1996-05-13
Abstract: The test system of the invention uses suppressed ringing connections from a test unit to the customer premise equipment via the central office to establish connections for performing the loop-back test. The suppressed ringing connections are established over standard voice trunks between a switch in the central office and the test unit by a central office service unit (COSU) such that the number of lines that can be tested simultaneously is limited only by the number of trunks linking the COSU to a switch. Because these trunks are relatively inexpensive and simple to install and maintain, the test system of the invention can be readily installed and expanded in the existing network to provide virtually any level of monitoring capability.
Patent CA-2179939-A1 (CA)
Title: Pyridazinone derivatives and processes for preparing the same
Inventor: ISHIDA AKIHIKO
IPC: A61K31/50
Filed: 1996-06-26
Abstract: Disclosed is a  pyridazinone compound represented by the formula (I):                                 (I) wherein X represents hydrogen atom or the like; Y represents a single bonding  arm, oxygen atom or sulfur atom; A represents a straight or branched alkylene group which may have a double bond;      B represents carbonyl group or thiocarbonyl group; and R represents an alkyl group having 1 to 10 carbon atoms which may be substituted or the like; or B represents sulfonyl group; and R represents a lower alkenyl group or the like;      R1 represents hydrogen atom or the like;  R3 represents hydrogen atom or the like; R4 represents hydrogen atom or the like; and R5 represents hydrogen atom or the like, or a pharmaceutically acceptable salt thereof.
Patent CA-2183397-A1 (CA)
Inventor: BENDER HELMUTH
IPC: F16L47/00
Filed: 1995-12-15
Abstract: PCT No. PCT/EP95/04973 Sec. 371 Date Aug. 14, 1996 Sec. 102(e) Date Aug. 14, 1996 PCT Filed Dec. 15, 1995 PCT Pub. No. WO96/18843 PCT Pub. Date Jun. 20, 1996One or a plurality of valve-operated branch pieces can be attached to any point of any pipe. To this end, two opposite openings (16, 18) are made in the pipe (10), and a branch valve body is clamped about the pipe in bracket-like manner at the prepared site.