baber/WOPTO huggingface dataset:
Patent NO-171116-C (NO)
Inventor: KOLTS JOHN HENRY
IPC: C07C11/06
Filed: 1986-07-25
Abstract: Feed hydrocarbons comprising propane and butanes are cracked to selectively maximize the production of ethylene or propylene by contacting the feed hydrocarbons with a cracking catalyst, adapted to convert the feed hydrocarbons to less saturated hydrocarbons, under conditions sufficient to thus crack the feed hydrocarbons, to thereby selectively maximize the production of ethylene, and, at least intervally, hydrogen sulfide or a hydrogen sulfide precursor is added to the feed hydrocarbons to thereby maximize the production of propylene. Preferred catalysts which may be utilized in the process and which are highly selective to the production of ethylene, as opposed to propylene, (in the absence of hydrogen sulfide or hydrogen sulfide precursor) include mixed oxides of manganese and magnesium, mixed oxides of manganese and Lanthanum Series metals and/or niobium, mixed oxides of iron and magnesium and mixed oxides of iron and Lanthanum Series metal and/or niobium. The effective life of the catalyst, particularly for the selective production of ethylene, is increased by carrying out the process in the presence of steam. When the catalyst contains manganese, the steam is optional whereas, when the catalyst contains iron, the steam is essential. The life of the magnesium based catalysts as well as their selectivity, particularly to ethylene, can also be extended by adding small promoting amounts of oxides of calcium, strontium, barium, tin, antimony, silicone, aluminum, titanium and/or chromium. All of the above promoters are useful in the iron/magnesium catalysts except the calcium, strontium, barium, tin and antimony. Only chromium is useful as a promoter for the Lanthanum Series and niobium based catalysts.
Patent NO-179889-C (NO)
Inventor: PAIK WOO H
IPC: H04B10/2581
Filed: 1990-09-17
Abstract: A CATV system uses a single single-mode optical fiber (16) for transmitting a composite optical signal (62) containing television signals in different frequency channels for a plurality of subscriber terminals (14) from a headend terminal (10) to a distribution terminal (12), and converts the transmitted signals at the distribution terminal into electrical signals for distribution to a plurality of subscriber terminals over a plurality of coaxial cables (18). The distribution terminal further receives electrical service request signals (88) from each of the plurality of subscriber terminals, and converts each received service request signal into an optical service request signal (84) for transmission to the headend terminal over the same single-mode optical fiber (16) as used from transmitting the composite optical signal. Wavelength-division multiplexer/demuitiplexers (50,70) couple the optical fiber to the headend terminal and the distribution terminal to enable bidirectlonal transmission. The subscriber terminal is responsive to a control signal transmitted to the subscriber terminal for enabling a receiver (96) therein to receive television signals transmitted to the subscriber terminal over a selected one of said different given frequency channels. The headend terminal includes a digital switch (40) that is operated in coordination with the control signals that are transmitted to the subscriber terminals for enabling reception of only selected frequency channels in the respective subscriber terminals, by frequency positioning the television signal indicated by the service request signal (66) received from a given subscriber terminal witbin the composite signal for transmission to the given subscriber terminal over the given frequency channel enabled by the control signal that is transmitted to the given subscriber terminal.
Patent NO-168322-C (NO)
Inventor: HORVEI KNUT V
IPC: F16K5/06
Filed: 1990-12-07
Abstract: PCT No. PCT/NO90/00008 Sec. 371 Date Jul. 23, 1991 Sec. 102(e) Date Jul. 23, 1991 PCT Filed Jan. 12, 1990 PCT Pub. No. WO90/08277 PCT Pub. Date Jul. 26, 1990.In one aspect the invention relates to a ball valve of the type comprising a ball member (83, 85) provided with two axially displaceable sleeves (66A, 66B) adapted to be displaced outwards to sealing engagement against seats provided in the surrounding valve housing (76) in the open position of the valve, so as to form a flow passage (73) through the valve, and which comprises a hollow drive axle for the rotary movement of the ball member between open and closed position and a drive spindle (12, 69) through the hollow drive axle, adapted to bringing about the axial displacement movement of the sleeves. On the drive spindle (69) and for rotation together with it there are provided two preferably disc shaped, first cam members (68A, 68B) on either side of the sleeves (66A, 66B) and the sleeves are provided with corresponding and cooperating second cam members (67A,67B) for the axial displacement by rotation of the drive spindle (69) in relation to the ball member (83, 85). As a second aspect there is also described an actuator for operating valves and the like, in particular a ball valve as above, comprising a hollow output drive axle (32) and an output drive spindle (12) extended through the hollow drive axle, in order thereby to make possible two different operational movements by rotation of the drive axle (32) and the drive spindle (12), respectively. The ball valve and the actuator have particularly interesting uses in oil related industry and on oil rigs or the like.
Patent NO-177441-C (NO)
Inventor: GARCIA SANTAMARIA SALVADOR
IPC: F25D23/02
Filed: 1993-01-12
Abstract: The refrigerating apparatus is of the type comprising at least one thermoinsulating door, with sunken handles (4) on the left side and on the right side in order to make possible the opening in one direction of rotation or the other. The handle (4) on the hinged side is sealed by a cap or cover element (14) which prevent the access to the handle. The handles are arranged at the frame (3) of the door (1) in one of the horizontal edges of said frame, thereby defining a front wall portion of the handle. <IMAGE>
Patent AU-744057-C (AU)
Title: Method for the disposal of waste products containing hydrocarbons and/or halogenated waste products
Inventor: ROLLINGER GUY
IPC: C10G1/02
Filed: 1998-06-12
Granted: 2003-04-10
Abstract: The invention relates to a method for the disposal of waste products containing hydrocarbons and/or halogenated waste products, wherein the waste products are made to react in a hydroxide molten bath in the absence of oxygen at temperatures of 400-900° C.
Patent CA-2003527-C (CA)
Inventor: WILTSHIRE CECIL K
IPC: B23P19/04
Filed: 1989-11-21
Granted: 1994-09-06
Abstract: A machine for use in removing pieces of load-bearing pallets in the repair thereof comprises support means (12; 112) arranged to support a pallet, holding means (14) operable to hold a pallet against movement, a guideway (30; 132) extending parallel to said support means, drive means (72; 165) for a cutter (62; 162) mounted on the guideway and adjusting means (46, 48, 50) operable to adjust the spacing of the cutter from the support means.  As the drive means (72) moves along the guideway, the cutter cuts through wood and/or nails of the pallet.
Patent CA-2004038-C (CA)
Title: Sustained release compositions using as matrix hemicellulose extracted from wheat bran
Inventor: IJITSU TAKANORI
IPC: A61K9/20
Filed: 1989-11-28
Granted: 2000-08-01
Abstract: A sustained release composition containing a chemical substance in a matrix. The matrix substantially comprises a hemicellulose extracted from wheat bran under alkaline conditions or a wheat bran extract containing the hemicellulose. The chemical substance is released at a controlled rate from the composition over a long period of time.
Patent CA-2005079-C (CA)
Inventor: ZARDI UMBERTO
IPC: C01B3/12
Filed: 1989-12-11
Granted: 2001-02-13
Abstract: A B S T R A C T            Reactors for the catalytic conversion of carbon monoxide into carbon dioxide are advantageously modified in situ from axial flow  reactors into substantially radial flow  reactors,  and more particularly into axial-radial flow reactors.   To  this end  at least an external cylindrical wall perforated for its whole  length and an internal wall preferably perforated  for most  of  its  length are inserted  inside  the  conventional reactor shell and cartridge.
Patent CA-2012050-C (CA)
Title: Process for the control of the inking of a printing press with limitation of the layer thickness and of the tonal-value increase
Inventor: PFEIFFER NIKOLAUS
IPC: B41F33/00
Filed: 1990-03-13
Granted: 1993-12-07
Abstract: ABSTRACT            In the control of inking in accordance with colorimetric or densitometric quantities, technical process-related influences must not be ignored during printing if it is intended to achieve optimum adaptation to the printing process and to the colour perception of the human eye.            For single- and multi-colour control, therefore, processes are proposed that, in consideration of interdependent parameters - maximum allowable tonal-value increase(s) and maximum allowable layer thickness(es) -, make for a setpoint locus (Set1), said setpoint locus (Set1) being both within the tolerable tonal-value increase(s) (ZSet ? ZTol or ZSeti ? ZToli) and also within the colour tolerance (ETol) or density tolerance (DVTol) or within the tolerance space (TolR). If the setpoint locus (Set1) fails to comply simultaneously with these two independent parameters, the tolerance range of the tonal-value increase(s) is extended and a setpoint locus (Set2 or Opt) is then checked as to whether it now simultaneously satisfies both parameters.
Patent CA-2014534-C (CA)
Title: Optical head
Inventor: OGATA NOBUO
IPC: G11B7/1359
Filed: 1990-04-12
Granted: 1994-10-25
Abstract: An optical head having a beam splitting means disposed in the light path from a collimating lens to a beam-shaping means, whereby the light beam from a semiconductor laser beam source retains its elliptical cross section while it passes through a beam splitting means, and its cross section is not made circular until it arrives at a beam-shaping means, so that the size of the beam splitting means, the converging lens and other optical members can be reduced, which makes the optical head compact and lightweight.
Patent CA-2022293-C (CA)
Title: Method and a system for remotely switching and/or regulating and monitoring an electrically operated device or an environment by the use of signals generated by a telephone or a modem
Inventor: ATTALLAH ARNALDO
IPC: H04M11/00
Filed: 1990-07-30
Granted: 1995-09-26
Abstract: A  switching  system  and  method  of  remote switching  and/or  regulating  an  electrically  operated device by the use of the DTMF telephone or modem signals.          A switching and/or regulating element is actuated and/or controlled by the system upon detecting a specific code generated remotely by telephone or modem.    The system allows  to  remotely monitor  environmental  sounds,   the status of the device and/or the variables controlled by this device  by  the  use  of  signals  generated  by  the system.     The  system  also  allows  a  bi-directional communication by transmitting sounds or spelling words, spelling  data  and  sentences  generated  by  a  voice synthesizer for monitoring outside the premises by the use of a telephone for human understanding.   The system may  use  unlimited  types  of  messages  which  can  also describe the  status of  any  type  of  physical  variable sensed on the premises and/or transmits modulated data of the messages  described above  for  out  of  the  premises computer communication linked by the telephone network via a modem. The system also provides for auto-dialing telephone numbers to reach a human and/or computers after detecting external elements malfunctioning.
Patent CA-2029014-C (CA)
Title: Absorbent structure containing individualized, polycarboxylic acid crosslinked fibers
Inventor: HERRON CARLISLE MITCHELL
IPC: D04H1/64
Filed: 1990-10-31
Granted: 1997-03-18
Abstract: Disclosed are absorbent structures containing individualized, crosslinked  fibers.    The  individualized,  crosslinked  fibers preferably have a C2 - C9 polycarboxylic acid crosslinking agent reacted with the fibers in the form of intrafiber crosslink bonds. Preferably,  the crosslinking agent  is citric acid,  and between about 0.5 mole % and about 10.0 mole % crosslinking agent react to form  the  intrafiber  crosslink  bonds.   Also  preferably,  the absorbent structures have actual dry densities greater than their corresponding equilibrium wet densities, and expand upon wetting. The  absorbent  structures  may  also  contain  hydrogel-forming material.
Patent CA-2029818-C (CA)
Title: Surface-mount filter
Inventor: KIM JIN D
IPC: H05K3/34
Filed: 1990-11-13
Granted: 1993-10-12
Abstract: SURFACE-MOUNT FILTER            Abstract of the Disclosure A filter assembly (100) includes a ceramic block filter (102) and shielding bracket (132) which surface mounts to a printed circuit board (152) for interconnecting to radio frequency devices, such as a radio transceiver. The bracket (132) is soldered to the filter (102) and includes two openings (136 and 137) for exposing input/output electrodes (106 and 107) of the filter. The printed circuit board (152) includes an opening (162) shaped to accept the filter (102) and bracket (132) when inserted therein. Transmission lines (156 and 157) are disposed on tabs (158 and 159) and are reflow soldered to the corresponding electrodes (106 and 107) of the filter. The bracket (132) includes two tabs (134) which are reflow soldered to grounded portions of the circuitry on the top side of the printed circuit board (152).
Patent CA-2030885-C (CA)
Title: Analog/digital compatible reproducing system
Inventor: SODA YUTAKA
IPC: G11B20/00
Filed: 1990-11-26
Granted: 2000-11-07
Abstract: There is disclosed, an analog/digital compatible reproducing system, particularly a stationary head system using a digital recorded magnetic tape having a plurality of, n, digital data recorded tracks, and an analog recorded magnetic tape having a first analog recorded track and a second analog recorded track between which a guardband of a certain width is provided, so as to reproduce signals from the digital recorded magnetic tape by driving n reproduce magnetic head elements respectively corresponding to the n digital data recorded tracks, and to reproduce the analog recorded magnetic tape by driving a plurality of, m, reproduce magnetic head elements of said n reproduce magnetic head elements, corresponding to the first and second recorded tracks so that common outputs can be produced from the m reproduce magnetic head elements. There is also disclosed a tape cassette used in such system.
Patent CA-2032560-C (CA)
Title: Process and apparatus for removing carbon monoxide from a gaseous mixture containing hydrogen
Inventor: BRIGAND PHILIPPE
IPC: B01D53/86
Filed: 1990-12-18
Granted: 2000-08-01
Abstract: The invention concerns a process, an apparatus and a use of the recovery of gaseous hydrogen from a gas containing hydrogen, hydro-carbons, carbon monoxide and possibly sulphur-containing products. The invention is mainly characterized by the fact that before the step of eliminating carbon monoxide in a methanator (8), there is carried out a step of permeation of the gaseous mixture through a membrane and a hydrogen enriched and carbon monoxide depleted permeated product is recovered.
Patent CA-2034137-C (CA)
Title: Correction for variable water column velocity in seismic data
Inventor: CHAMBERS RONALD E
IPC: G01V1/28
Filed: 1991-01-14
Granted: 1997-09-02
Abstract: In a marine seismic survey, a method for measuring the acoustic properties of the water mass at each seismic station along a line of survey by recovering acoustic reflections from discrete discontinuities within the water above the water-bottom reflection. A profile of the velocity distribution within the water column is calculated from a conventional velocity analysis.
Patent CA-2038119-C (CA)
Title: Process for applying a release coating to a wet nonwoven backing and article
Inventor: RIEDEL JOHN E
IPC: C09J7/21
Filed: 1991-03-12
Granted: 2000-08-08
Abstract: Release coated nonwoven sheet materials are provided through the process of (a) forming a web from fibers; (b) applying a water-based binder to the web; (c) applying a water-based release coating to one side of said web while the web is still wet from the application of the binder; and (d) drying said web. This process eliminates at least one heating step, with unexpected control of the migration of the release coating through the web.
Patent CA-2040744-C (CA)
Title: Copper alloy and process for its preparation
Inventor: COLIJN JEROEN
IPC: C23C4/08
Filed: 1991-04-18
Granted: 1999-10-05
Abstract: Process for the preparation of a substantially homogeneous alpha phase copper-nickel-tin alloy comprising copper and 4-18% by weight of nickel and 3-13% by weight of tin, comprising atomizing a molten alloy having the before-indicated composition and collecting atomized particles on a collecting surface in such a way that solid collected material is obtained having a temperature, of at least 700 °C, followed by quick cooling of the collected material to a temperature below 300 °C.      The alloy thus obtained may be hardened, preferably after shaping, by spinodal decomposition.
Patent CA-2047021-C (CA)
Title: Connection between the outlet of a metallurgical vessel and a shield tube or immersion nozzle
Inventor: LUHRSEN ERNST
IPC: B22D41/50
Filed: 1991-07-15
Granted: 2001-10-02
Abstract: The seal is to be simplified and a leak monitor is to be produced in a connection between the outlet of a metallurgical vessel and a shield tube or an immersion nozzle connected thereto. Arranged above and below an annular space, to which inert gas is supplied, are compressible sealing rings. An indicating device monitors the gas pressure prevailing in the annular space.
Patent CA-2047095-C (CA)
Title: Tool tube
Inventor: BLASKIE VICTOR
IPC: B60R11/06
Filed: 1991-07-15
Granted: 1993-09-14
Abstract: Abstract A tubular storage box, connected to a vehicle, to minimize obstruction and occupied space.   The tubular box includes partitioned units within the structure.  The units may be used for storage of materials such as tools.  The box includes a longitudinal opening which enables easy access to the stored items.  The tubular box is easily installed in a motor vehicle in a manner providing easy access to the operator.
Patent CA-2051072-C (CA)
Title: Amelinic compounds
Inventor: CIPOLLI ROBERTO
IPC: C08K5/3492
Filed: 1991-09-10
Granted: 1998-06-09
Abstract: Amelinic compounds of general formula (I):     (see fig.I) wherein: R = H; at least one Rl, R2 and R3 = -CnH2n-O-R4 or -CmH2m-N(R5)2 wherein n = 2 to 8;      m = 2 to 6; R4 = H; (C1-8)alkyl; (C2-6)alkenyl; -CpH2p-O-R6 wherein p = 1 to 4 and R6 = H, (Cl-4)alkyl, (C6-12)cycloalkyl or (C6-12)alkylcycloalkyl; R5 = H; (C1-8)alkyl;  (C2-6)alkenyl;  (C6-12)cycloalkyl; (C6-12)alkylcycloalkyl; (C1-4)hydroxyalkyl; or -N(R5)2 is replaced by a saturated heterocyclic radical bound to the triazine ring through a N atom or by a saturated heterocyclic radical bound to the alkyl chain through the N atom and containinq another heteroatom selected from O, S and N; the remaining  Rl, R2 and R3, identical or different, have the above-mentioned meanings or represent H: (C1-8)alkyl: (C2-8)alkenyl: (C6-16)cycloalkyl: (C6-16)alkylcycloalkyl: (C1-8)alkyl substituted with a -OH or a (C1-4)hydroxyalkyl radical; eventually substituted with a -OH or (C1-8)hydroxyalkyl radical; provided that: (i) when R2 and R3 = H, R1 is different from 2-hydroxyethyl; (ii) when -NRRl and -NR2R3 are each replaced by a saturated heterocyclic radical bound to the triazine ring through the nitrogen atom, the heterocyclic radical is not piperidine or morpholine; or (iii)  when one of the qroups - NRRl and - NR2R3 is replaced by a morpholine radical bound to the triazine ring through the nitrogen atom, the other group is not -NH2 or morpholine; and (iv)2-hydroxy-4,6-bis(3-methoxypropylamino)-1,3,5-triazine is excluded. The invention also relates to preparation processes. Compounds of formula (I) are useful as anti-flame additives for polymers.
Patent CA-2055393-C (CA)
Title: Plastic moldboards for snow plows and the like
Inventor: CIULA JAMES C
IPC: E01H5/06
Filed: 1991-11-13
Granted: 1995-08-15
Abstract: A  plow  is  constructed  of  a  curved  high  density polyethylene moldboard and frame assembly.   The moldboard can be constructed with a mounting collar that slides over and grips the  frame or with the  frame molded into  and encapsulated  by  the  polyethylene.   A  scraper  blade  is attached to the bottom of the  frame  for increasing the moldboard's rigidity and/or securing the moldboard to the frame.
Patent CA-2059610-C (CA)
Inventor: ONG HELEN HU
IPC: C07D209/82
Filed: 1992-01-17
Granted: 2002-04-02
Abstract: There are disclosed various compounds of the formula below, (see formula I) where n, K and R1 through R4 are as defined in the specification, which are useful for alleviating various memory dysfunctions characterized by a cholinergic deficit such as Alzheimer's disease. Compounds of this invention also inhibit monoamine oxidase and/or act at central .alpha.2-adrenergic receptors, and hence are useful as antidepressants. The invention relates also to intermediates and a process for the preparation of the above compounds.
Patent CA-2059755-C (CA)
Title: Chain belt
Inventor: MOTT PHILIP J
IPC: F16G5/18
Filed: 1992-01-21
Granted: 2003-06-17
Abstract: An endless power transmission chain-belt is disclosed that is especially adapted for drivingly connecting the pulleys of a pulley transmission. The chain-belt has a chain that is an assembly of a plurality of interleaved sets of links. A pivot means extends through the chains to lace and pivotally interconnect adjacent sets of links to provide an endless chain-belt. The sets of links of the chain are held together by the pivot means. A plurality of first load blocks are connected to the chain-belt. The first load blocks have at least one projection that extends in a direction towards the chain. The projection engages adjacent pivot means to secure the first load blocks to the chain. The first load blocks extend substantially across the width of the chain and have a substantially flat first bearing surface that is positioned adjacent the links. Each first load block has lateral edges shaped to frictionally engage the pulleys of the pulley transmission. A plurality of second load blocks are connected to the chain-belt. The second load blocks have at least one projection that extends in a direction towards the chain. The second load blocks have a second bearing surface that is positioned adjacent the links. The second bearing surface is disposed at an angle with respect to the first bearing surface of the first load blocks. The second load blocks are disposed at an angle with respect to said first load blocks when the first and second bearing surfaces are in contact with the links and each second load block has lateral edges shaped to frictionally engage the pulleys of the transmission.
Patent CA-2067192-C (CA)
Title: Adjustable stepping structure for aerobic exercises
Inventor: LEFTWICH EDWARD F
IPC: A63B23/00
Filed: 1990-09-25
Granted: 1995-07-11
Abstract: An adjustable stepping structure (100) for aerobic exercises comprising a platform (117) upon which the participant places his or her feet, the platform being elevated above a support surface by means of one or more support elements (114) which are capable of being detachably stacked upon each other until the platform is maintained at a selected distance above the support surface, depending upon the skill and physical characteristics of the participant.