baber/WOPTO huggingface dataset:
Patent NO-174376-C (NO)
Inventor: DAHL TOR
IPC: B21D7/022
Filed: 1986-04-07
Abstract: The invention relates to an apparatus for bending structural metal rails, preferably rails for multi-glazed windows, and gives instructions for a bending unit (20) having two wringing heads (6) which can be displaced relative to the width of the rail, for in an open position to allow the infeed of rails (5) having various width, and in an attracted position to clamp a portion of the rail (5) for the bending thereof by turning the wringing heads (6). Since each wringing head (6) is provided with a protrusion (6a) having an edge (6b) serving to position the rail (5) upon the closing of the wringing head (6) and to support the rail (5) during the bending operation, there is also defined a space (6c) between the protrusions (6a), said space (6c) defining an infeed path for further supply of rail (5) immediately after a bending operation and after the opening of the wringing heads (6), so that the infeed of a further length of rail takes place synchronously with the return movement of the wringing heads (6) to the starting position for another bending operation.
Patent NO-177868-C (NO)
Inventor: WILLIS CLYDE A
IPC: E21B19/08
Filed: 1988-09-02
Abstract: An earch drilling machine includes a crown block assembly (14 min ), a travelling block assembly (18 min ) and a drawworks (20). The drawworks includes a drum (22) which rotates about a drum axis (24). The drum axis is oriented at right angles to a fast line plane defined by a fast line sheave (FL) included in the crown block assembly. In this way, the fleet angle between the drum and the fast line sheave is kept substantially equal to zero. Various sheave arrangements are described which combine proper selection of sheave pitch diameter, sheave axis angle, and sheave placement to ensure that the fleet angle of all of the sections of line extending between the crown block assembly and the travelling block assembly are reeved with a fleet angle exactly equal to zero. In this way line wear is reduced and the height, weight and windage of the mast are all minimised.
Patent NO-175941-C (NO)
Inventor: REAGEN WILLIAM KEVIN
IPC: C08F4/78
Filed: 1990-08-09
Abstract: Novel chromium-containing compounds are prepared by forming a mixture of a chromium salt, a metal amide, and an ether. These novel chromium-containing, or chromium pyrrolide, compounds can be used as a cocatalyst in the presence of an olefin polymerization catalyst to produce a comonomer in-situ. The resultant polymer, although produced from predominately one monomer, has characteristics of a copolymer.
Patent CA-2014429-C (CA)
Title: Catalytic cracking catalyst containing diatomaceous earth
Inventor: LAM CHIU TIN
IPC: B01J29/06
Filed: 1990-04-11
Granted: 1998-10-06
Abstract: A catalytic composite and its use in the fluidized catalytic cracking of hydrocarbons in the absence of added hydrogen.  The composite comprises a binder material, a crystalline aluminosilicate, preferably a Y-type zeolite, and diatomaceous earth.  Optional ingredients are kaolin, barium titanate and discrete particles of porous alumina. Absent from the composite is a supported catalytically active metal or metal oxide.  The catalytic composite of the invention achieves higher gasoline production with lower coke production as compared to FCC catalysts with no diatomaceous earth content.
Patent CA-2014684-C (CA)
Title: Method to improve flowability of alkaline phenolic resin coated sand
Inventor: JOHNSON CALVIN K
IPC: C08L61/10
Filed: 1990-04-17
Granted: 1999-02-09
Abstract: A process for improving the flowability of resin coated sand which comprises the use of a flow promoter with the mixture of sand and resin. Also provided is a foundry mix comprising foundry sand, a resin binder and the flow promoter, as well as a process for making foundry cores and molds using the foundry mix.          The resins are ester-curable alkaline phenolic resole resins.          The flow promoter is selected from the group consisting of fatty acids, fatty alcohols, fatty amines, fatty amides and fatty alkanolamides.
Patent CA-2015677-C (CA)
Title: Pertussis toxin mutants, bordetella strains capable of producing such mutants and their use in the development of antipertussis vaccines
Inventor: PIZZA MARIAGRAZIA
IPC: C12R1/01
Filed: 1990-04-27
Granted: 2005-06-21
Abstract: New pertussis toxin (PT) mutants are described being immunologically active and having reduced or no toxicity, characterized in that at least one of the aminoacid residues G1u129, Asp11, Trp26, Arg9, Phe50, Asp1, Arg13, Tyr130, Gly86, Ile88, Tyr89, Tyr8, Gly 44, Thr53 and G1y80 of subunit's 1 aminoacid sequence is deleted and substituted by a different aminoacid residue selected in the group of natural aminoacids; Bordetella strains capable of providing and secreting said PT mutants and means and methods for obtaining them are also described.      The Bordetella strains and the PT mutants produced by them are particularly suitable for the preparation of effective cellular and acellular antipertussis vaccines.
Patent CA-2017630-C (CA)
Inventor: WILSON ROBERT W
IPC: G01R31/50
Filed: 1990-05-28
Granted: 1999-07-27
Abstract: A device for monitoring the grounding characteristics of both an electrically dissipative work surface and a conductive wrist strap having a grounding tether.  The device includes a mat monitor and a strap monitor.  The mat monitor checks the resistance of the mat ground path and alerts the user if this resistance exceeds a predetermined resistance.  The strap monitor checks the resistance of the wrist strap and tether ground path, and employs a timer to send electrical pulses to the wrist strap rather than having a constant voltage output to the strap.  The strap monitor establishes a resistance window for the strap ground path, and alerts the user if the strap ground path resistance falls outside of the resistance window.
Patent CA-2020229-C (CA)
Title: Well treatment method
Inventor: DEES JOHN MARTIN
IPC: E21B43/02
Filed: 1990-06-28
Granted: 1995-09-26
Abstract: In a well treatment method, a fluid is positioned in a wellbore have formation perforations in alignment with the portion  thereof  to  be  treated.   A  gas  generator  is positioned in proximity with the fluid and is actuated to disperse the fluid within the wellbore in accordance with a pressure/time relationship.  In the preferred embodiment of  the  invention,  the  fluid  is  a  fluid  resin material which  is  polymerized  following  operation  of  the  gas generator to form a consolidated, porous, permeable matrix which  retains  sand  and  other  fine  materials  while permitting the flow of production fluid into the well.
Patent CA-2021279-C (CA)
Title: Automatic material extension machine
Inventor: CHEN SHENG-MING
IPC: B65H19/10
Filed: 1990-07-16
Granted: 1999-11-30
Abstract: The present disclosure is related to an automatic material extension machine, and more particularly to a rotatable abutment type extension machine adapted for continuously drawing out rolled up material mounted on rolls by friction for further processing; which includes an abutment balance transmitter and an automatic end-joining device, and is mainly applied to tape, wall paper and leather substance prepared in rolls. The abutment extension transmitter has two sets of developing roller on which are disposed the rolls ready to be operated; one of the sets is identified as action set and the other is called stand-by set; the former uses driving motor to actuate two cylinders which are in abutment with the roll of material so to make the rolled-up material outwardly extended by friction. When the roll on tire action set is about to run out, the front end of the stand-by roll set is made automatically join end-to-end to the final end of the action roll set; in the meanwhile, the two sets of developing roller are forced by a motor to make an 180 degree turn for shift of position. The mechanism effecting the shift is made up of five identical gears which control respectively the external frame of the developing rollers to turn 180 degrees and constantly keep the horizontal brackets of the two sets of roller in a horizontal position so that the action set can continuously work to get the rolled-up material extended by friction. The operator can take his time in replacing the run-out roll with a new one without interruption.
Patent CA-2030456-C (CA)
Title: Strip elongation control in continuous annealing furnaces
Inventor: MIELOO ROBERT J
IPC: C21D9/56
Filed: 1990-11-21
Granted: 1994-11-22
Abstract: Strip elongation in a continuous annealing furnace is controlled by passing the strip around a first driven roll, thence through a portion of the furnace, thence around a second driven roll, wherein the amount by which the peripheral speed of the second roll exceeds the peripheral speed of the first roll is controlled in order to control strip elongation.  Strip elongation is sensed by monitoring roll speeds using precision resolvers.  This eliminates the need to measure the strip load.
Patent CA-2039867-C (CA)
Title: Sheet transfer device with suction table on a machine producing package
Inventor: REBEAUD JEAN-CLAUDE
IPC: B31B1/12
Filed: 1991-04-05
Granted: 1994-09-13
Abstract: ABSTRACT         The invention concerns a suction table (1) which, in a machine converting sheets into package, transfers the last, lowermost, sheet of a batch to a subsequent processing station.          The table (1) provided with numerous blowing and sucking nozzles (4) is fitted on a hollow frame (B) movable with regard to a fixed distributory housing (2) for sucking and blowing action.  The housing (2) comprises a distributory shaft (D) and tubes (T1) sliding within corresponding guides (G1) foreseen in the frame (B).  All these components are provided with ducts (10, 11, L1, L4, Rp, R3, O3, 100, S1) which will allow to have the nozzles (4) suck or blow as required by the angular position of the distributory shaft (D) and the position of the table (1).
Patent CA-2049003-C (CA)
Title: Method for fiber coating with particles
Inventor: IYER SHRIDHAR
IPC: B05B13/02
Filed: 1991-02-21
Granted: 1996-11-12
Abstract: A system and method for uniformly coating one or more fibers (10) with particles of a material is described. The method uses a vibrator preferably an acoustic speaker (17b) in a housing (17c) to fluidize the particles (P1) in a chamber (17 or 30) to deposit them on spread fibers (10b). The fibers can be in the form of a tow of fibers. After the particles are coated on the fibers, the particles can be bonded to the fiber such as by using a heater (19). The resulting product has a uniform deposit of the particles and in the case of the tow of fibers can serve as a prepreg for laminate structures to be produced from the coat-ed tow of fibers.
Patent CA-2049886-C (CA)
Title: Catalyzed sucrose-6-ester process
Inventor: VERNON NICHOLAS M
IPC: B01J31/12
Filed: 1991-08-26
Granted: 2002-01-29
Abstract: Sucrose, is mono-acylated in the 6 position by reacting sucrose with an acylating agent such as acetic or benzoic anhydride in the presence of a catalytic quantity of a 1,3-diacyloxy-1,1,3,3-tetra(hydrocarbyl)distannoxane, for a period of time and at a temperature sufficient to produce a sucrose-6-ester.
Patent CA-2050862-C (CA)
Title: Apparatus for sewing fabric pieces to slide fastener chain
Inventor: HUTCHERSON JAMES
IPC: D05B23/00
Filed: 1991-09-06
Granted: 1998-08-25
Abstract: An apparatus for automatically sewing a succession of fabric pieces to a continuous slide fastener chain comprises a sewing machine for feeding and sewing the fabric pieces and slide fastener chain together; a guiding apparatus disposed upstream of the sewing machine and including a pair of opposed guide rollers urged towards each other with the slide fastener chain interposed therebetween so as to be driven via the slide fastener chain by the sewing machine while guiding the slide fastener chain towards the sewing machine; and a feeding apparatus disposed between the guiding apparatus and the sewing machine and including a pair of opposed feed rollers urged towards each other so as to convergently place therebetween the slide fastener chain into superimposed relation to the fabric pieces and to feed the fabric pieces with the slide fastener chain thus superimposed thereon to the sewing machine.  One feed roller of the two feed rollers of the feeding apparatus which the fabric pieces ride on and one guide roller of the guide rollers of guiding apparatus are so linked as to rotate with each other.
Patent CA-2057083-C (CA)
Title: Digital method and apparatus for measuring the frequency of an if signal
Inventor: TULTS JURI
IPC: G01R23/10
Filed: 1991-12-05
Granted: 1994-09-13
Abstract: Abstract of the Disclosure A tuning system of a television receiver includes a digital automatic fine tuning (AFT) unit for generating a digital AFT signal representing the deviation of the frequency of the picture carrier of the IF signal from a nominal frequency. The digital AFT unit includes a counter for counting cycles of picture carrier during repetitive counting intervals which occur during a measurement period having a duration as least as long as the duration of one field of a television signal. The duration and spacing of the counting intervals are selected so that at least one counting interval occurs during the vertical blanking interval in which the picture carrier is not likely to be over-modulated and therefore not likely to result in erroneous low counts. The contents of the counter are evaluated at the end of each counting cycle to determine if a first count corresponding to a nominal frequency or a second count corresponding to the frequency having a positive frequency deviation have been produced. At the end of the measurement interval, the frequency of the picture carrier relative to the nominal frequency is evaluated by determining which one, if any of the first and second counts have been produced. A low frequency is indicated by the absence of both. A frequency within specified limits is indicated by the presence of the first but not the second counts A high frequency is indicated by the presence of both counts. The technique employed does not require that the timing signal be synchronized with the vertical blanking interval for reliable counting.
Patent CA-2059564-C (CA)
Title: Icebreaking ship
Inventor: JANS PETER
IPC: B63B35/08
Filed: 1992-01-16
Granted: 2000-05-02
Abstract: An icebreaking ship is equipped, on the forward quarter of the hull, on both side flanks in the vicinity of the water line, with first and second icebreaking means, with the second icebreaking means located at some distance behind the first.      Between the two icebreaking means is a recessed area, which has a curve profile which approximately matches the radius of curvature of the inside turning circle of the ship at the crown or zenithal line of the turning circle. The second icebreaking means is designed so that it does not exceed the width of the hull and the recessed hull wall area between the icebreaking means is designed as a waistline-like indentation in the hull.
Patent CA-2062340-C (CA)
Inventor: BURNOUF-RADOSEVICH MIRYANA
IPC: C07K14/435
Filed: 1992-03-05
Granted: 2000-05-09
Abstract: L'invention concerne un procédé de préparation de facteur von Willebrand humain à partir d'une fraction cryoprécipitée de plasma. Le procédé comprend une combinaison de trois étapes de séparation chromatographique. Le concentré obtenu présente une très haute activité spécifique et un pourcentage élevé de multimères de haut poids moléculaire. Le concentré est destiné notamment à un usage thérapeutique.
Patent CA-2062660-C (CA)
Title: Optical distance measuring apparatus
Inventor: OHMAMYUDA YUKIO
IPC: G01S17/36
Filed: 1992-03-11
Granted: 1996-05-28
Abstract: An optical distance measuring apparatus wherein a processing system including a central processing unit and first and second local oscillating circuits serve to detect and calculate a phase difference between the electrical phase of a modulated signal outputted from a reference oscillator electrically connected to a light source via a modulating circuit and the electrical phase of a demodulated signal outputted from a demodulating circuit electrically connected to a light receiving portion.  Distance between the apparatus and an object is measured based on the detected phase difference with reference to the electrical phase of a reference signal outputted from a reference oscillator.  A first local oscillating signal is outputted from the first local oscillating circuit and it is then subjected to frequency conversion together with the demodulated signal in a mixer so as to output a first intermediate frequency, while a second local oscillating signal is outputted from the second local oscillating circuit and it is then subjected to frequency conversion in a mixer together with the demodulated signal so as to output a second intermediate frequency signal.          One of the first and second intermediate frequency signals is selected depending on the present distance between the apparatus and the object to be measured.
Patent CA-2064712-C (CA)
Inventor: SCHOENDORFER DONALD W
IPC: A61M1/30
Filed: 1991-06-12
Granted: 1999-04-06
Abstract: Method and apparatus for machine separation of blood and blood components that u tilizes improved administration of anticoagulant to the red cell suspension output. Anticoagulant (20) is added to incoming whole blood (13) in an amount sufficient to prevent clotting of the whole blood in the flow path upstream of the blood co mponent separator (46), but in an amount insufficient to prevent clotting of the red cell suspension created by the separator. Anticoa gulant (20) is added to the red cell suspension downstream (50) of the separator (46) in order to prevent clotting. By adding an additional aliquot of anticoagulant to the red cell suspension, the amount of anticoagulant added to whole blood before separation c an be reduced or eliminated, resulting in an increase in platelet yield during the blood component separation step.
Patent CA-2065192-C (CA)
Title: Process for the production of 2-azabicyclo[2.2.1]hept-5-en-3-one
Inventor: GRIFFITHS GARETH
IPC: C07D209/52
Filed: 1992-04-06
Granted: 2002-06-11
Abstract: A process for producing 2-azabicyclo[2.2.1]hept-5-en-3-one is disclosed by a Diels-Alder reaction of cyclopentadiene and methanesulfonyl cyanide followed by hydrolytic cleavage of the methanesulfonyl group.
Patent CA-2079159-C (CA)
Title: Portable seed stripper apparatus
Inventor: COLLICUTT DOUGLAS R
IPC: A01D45/30
Filed: 1992-09-25
Granted: 1998-10-27
Abstract: ABSTRACT     A hand-held apparatus is disclosed for collecting seeds from plants.  The apparatus has an elongated handle with a rotary brush-like unit rotatably attached to one end of the handle.  The rotary unit has a plurality of seed stripper elements extending radially outwardly from and operatively spaced around the unit.          Drive means are provided for rotating the unit and seed containment means are attached to the handle and extend adjacent the unit for catching seed which is stripped off the plants by the seed stripper elements.  A conventional string trimmer may be converted into a seed stripper of the invention by removing the string trimmer head and replacing it with the rotary unit of the invention.
Patent CA-2086061-C (CA)
Title: Press section of a paper machine, in particular for printing paper qualities
Inventor: ILMARINEN ANTTI
IPC: D21F3/02
Filed: 1992-12-22
Granted: 1999-02-16
Abstract: ABSTRACT       A press section of a paper machine, in particular for printing paper qualities whose grammage is in the range of about 40 g/m2 to about 80 g/m2 is disclosed.  The press section comprises a pick-up roll having a suction zone on which a paper web is detached at a pick-up point from a forming wire and is passed on the pick-up felt into a first press nip in the press section.  In the first press nip, the pick-up felt acts as a press fabric.  The press section further includes an extended nip placed after the first press nip.  Into this extended nip, the web is passed as a closed draw on support of a fabric face or roll face.  The first nip in the press section is a roll nip with relatively low load and acts as a front nip.  In the area of the first press nip, almost or approximately one half of the total amount of the water contained in the web entering into the front nip is removed from the web.  The extended nip, which is the second press nip in the press section, is formed against a smooth-faced back-up roll.  Only one water-receiving press fabric passes through the press zone of the extended nip.  The fabric is arranged preferably at the side of the face of the web opposite to the web face placed at the side of the forming wire from which the web is detached at the pick-up point.
Patent CA-2089948-C (CA)
Inventor: TANIGAKI RYUHEI
IPC: F04C18/02
Filed: 1993-02-19
Granted: 1999-02-02
Abstract: A pin passing through a pin hole disposed in a support portion disposed on a rotating shaft is fixed to the support portion by fitting a first push nut to the pin so that the first push nut abuts against the top surface of the support portion. Then, a balance weight is supported by the support portion by fitting a second push nut onto the protruding end of the pin.
Patent CA-2091569-C (CA)
Title: Intermediates in the preparation of 4,5-difluoroanthranilic acid
Inventor: BRAISH TAMIM F
IPC: C07C259/10
Filed: 1991-07-29
Granted: 1997-02-18
Abstract: Compounds of formula (I), which are intermediates in the preparation of 4,5-difluoroanthranilic acid, an intermediate it-self in the synthesis of quinolone antibacterials, and methods of preparing these intermediates.
Patent CA-2092003-C (CA)
Title: Universal remote control system
Inventor: DARBEE PAUL V
IPC: H04B10/118
Filed: 1990-09-24
Granted: 2000-11-28
Abstract: The universal remote control system includes a remote control comprising input elements for inputting commands into the remote control, infrared signal output circuitry including output elements for supplying an infrared signal to a controlled device, central processing unit (CPU) coupled to the input elements and to the signal output circuitry, a memory coupled to the CPU and data coupling circuitry including terminal structure coupled to the CPU for enabling code data for controlling a variety of devices to be controlled to be supplied from outside the remote control through the terminal structure and the CPU to the memory to set up the remote control for controlling the devices to be controlled and a data transmission system including coupling circuitry for coupling the terminal structure to a computer, directly, through a telephone line, through a modem and a telephone line, or through a decoding element, a television set and a television signal which is picked up by the television set and which has data from the computer.