baber/WOPTO huggingface dataset:
Patent CA-2058942-A1 (CA)
IPC: B65D8/14
Filed: 1990-04-13
Abstract: A bin adapted for storing and dispensing particulate materials is formed by joining two or more bin modules of similar shape. The linear dimensions of the modules increase in a geometric series, with the smallest module being at the bottom. The modules are designed to prevent arching of the particular material to assure mass flow. Three embodiments of bin modules are described. In the first and the third embodiments, each module consists of two sections, but in a second embodiment the module consists of four sections. A bin constructed of these modules requires appreciably less head room than does a conical bin.
Patent CA-2060202-A1 (CA)
Title: Apparatus for producing aggregate for construction works from infectious medical waste articles
Inventor: KANEKO TADASHI
IPC: B01D53/14
Filed: 1991-06-14
Abstract: ABSTRACT various kinds of infectious medical waste articles such as bloody injection needles or the like are first crushed into pieces to such an extent that a shape of the crushed infectious  medical  waste  articles  can  not  visually  be identified by anyone.  Subsequently, the crushed infectious medical waste articles and pulverized catalyzer are introd-uced into a mixer so that a mixture of the crushed infect-ious medical waste articles and the pulverized catalyzer is heated in the mixer up to a temperature higher than 180 °C by activating heating means while generating frictional heat as a blade is rotated in the mixer,  whereby the crushed infectious medical waste articles are completely sterilized in a hot atmosphere having a temperature higher than 180 °C.          The pulverized catalyzer serves to absorb an unpleasant odor and a toxic gas which are generated from the crushed infect-ious medical waste articles in the mixer at a temperature higher than 160 °C.  In such manner,  sterilization of the crushed infectious medical waste articles and absorption of the toxic gas can simultaneously be achieved, and moreover, the resultant mixer of the crushed infectious medical waste articles and the pulverized catalyzer can be reused as an aggregate for construction works such as concrete or the like.
Patent CA-2061404-A1 (CA)
Title: Organic compounds
Inventor: LAJOS AVAR
IPC: C09D7/12
Filed: 1992-02-18
Abstract: -29-                      Case 153-5502 IMPROVEMENTS IN OR RELATING TO ORGANIC COMPOUNDS     Abstract of the Disclosure A  compound of formula I                       (I) in which each R independently is hydrogen; oxygen; -OH; C1-8alkyl; -O-C1-8alkyl; -O-CO-C1-8 alkyl; -O-CO-phenyl or -COR5;   where R5 is -C(R3)=CH2, C1-6 alkyl, phenyl, -CO-phenyl, -NR7R8, -COC6H5, -CH2-C6H5, -CO-OC1-12 alkyl or -COOH; R7 is hydrogen, C1-12 alkyl, C5-6 cycloalkyl, phenyl, phenyl-C1-4 alkyl or C1-12 alkylphenyl and R8 is C1-12alkyl or hydrogen, each R1 independently, is -CH3 or -CH2(C1-4alkyl) or both groups R1 together form a group -(CH2)5-;   each R2, independently, is -CH3 or -CH2(C1-4 alkyl) or both groups R2 together from a group -C(CH2)5-;   each R3 independently, is hydrogen or C1-4 alkyl; and X is a group of formula .alpha., .beta.. .gamma.. .delta.     -30-                     Case 153-5502   (.alpha.)    (.beta.)        (.gamma.)                      (.delta.) where either R10 is   ; C1-22 alkyl; C2-22 alkenyl;   ;  ; -N(C1-4alkyl)2; -NH(C1-4alkyl) or halogen, and R6 is hydrogen, halogen, C1-8alkyl or C2-8alkenyl or R10 is C1-22alkoxy and R5 is hydrogen, C1-8alkyl or C1-8alkoxy, and X1 is                  where n is 1 or 2 and A is -S- or -O-.     These compounds are useful as light stabilisers for polymeric material.
Patent CA-2064561-A1 (CA)
Inventor: HILES ANDREW GEORGE GRIMSDYKE
IPC: C07D307/08
Filed: 1990-07-27
Abstract: Separation of tetrahydrofuran (THF) from a mixture containing water, THF and a lower alkanol such as ethanol or methanol, is achieved by distillation in two zones, the vaporous mixture from the first zone being condensed and redistilled at a higher pressure in the second zone. Substantially pure THF is recovered from a lower part of the second zone, whilst the vapour from the top of the second zone is combined with the vapour from the first zone prior to condensation and the resulting condensate forms the liquid feed to the second zone. The process is suitable for recovering THF  from complex reaction mixtures, containing also butane-1,4-diol and gamma-butyrolactone, obtained by hydrogenation of a dialkyl maleate.
Patent CA-2066178-A1 (CA)
Title: Preparation of relatively pure p, p-bisphenol s
Inventor: MULHALL STEVEN E
IPC: C07C315/00
Filed: 1991-06-24
Abstract: A process of preparing 4,4'-Bisphenol S wherein sulfuric acid is reacted with an excess of phenol while removing water; the product purity is improved with respect to the 2,4'-BPS isomer by adding toluene to the initial product mixture to crystallize and remove the desired 4,4'-BPS. The remaining material is recycled to isomerize the 2,4'-BPS to 4,4'-BPS.
Patent CA-2067200-A1 (CA)
Inventor: RICE KENNER CRALLE
IPC: C07D489/04
Filed: 1990-10-16
Abstract: Families of antagonist-agonists and opiate narcotics are produced from norhydrocodeinone. In a preferred embodiment, norhydrocodeinone is refluxed with sulfosalicyclic dimethylketal and delta-6-enol ether derivatives and is then converted entirely to the ether by the addition of dry tetrahydrofuran simultaneously with the removal of the thus produced ether. The ether is then reacted with methanesulfonic acid and N-bromoacetamide to form the hydrobromide salt of the 7-bromodimethylketal derivative. From this derivative, a variety of products can be derived, including the novel further intermediate 14 hydroxynorcodeinone. The present invention enables derivation using a starting material which, unlike the starting materials of prior art processes, is available in the natural (-) or synthetic (+) form. Thus, the method of the present invention provides the only known route for the synthesis of (+) forms of various derivatives and intermediates, such as (+)-7-bromo-dimethylketal nordihydrocodeinone.
Patent CA-2067749-A1 (CA)
Title: Device for working the ground
Inventor: EVERS JOHANN
IPC: A01B49/02
Filed: 1990-10-19
Abstract: A device (1) for working the ground comprises a frame (2) and a plurality of discs (6). Each disc is rotatably mounted on a lying shaft (5) which is provided on the free end of a pivotable standing shaft (4). In order to prevent jamming of the discs (6) by earth thrown up by adjacent discs (6), each standing shaft (4) is placed on the concave side of its associated disc (6). The lying shafts (5) are inclined relative to the ground, thus providing an improved ''digging'' working of the ground. The slope of the shafts (5) relative to the ground can be varied by pivoting a part (26) bearing the standing shafts (4) relative to a fixed part (25) of the frame (2).
Patent CA-2072341-A1 (CA)
Inventor: SCHREDER FRANCIS J
IPC: G01J1/06
Filed: 1992-06-26
Abstract: Method for measuring luminance, in particular measuring external luminance in the access zone of a tunnel through which vehicles are driven and from which the minimum luminance to be programmed in the tunnel is deduced, using a photosensitive cell (1) disposed in a blind tube (2) in order to be sensitive to luminances contained within a cone defined by the centre (3) of the cell which constitutes the apex of the said cone and by at least the opening (5) of the tube, this method consisting in limiting the number of light rays penetrating the tube (2) following the aforementioned cone, and apparatus for implementing this method. <IMAGE>
Patent CA-2075084-A1 (CA)
Inventor: NAGAOKA TADAYOSHI
IPC: E21B43/08
Filed: 1992-07-31
Abstract: A well screen for a horizontal or high-angle well includes a screen main body and a protective frame.   The screen  main  body  has  screen  rods  arranged  in  the circumferential direction of the well screen and a screen wire wound on the screen rods.   The protective frame includes protective rods located outside of the screen wire in the circumferential direction and extending in the axial direction of the well screen, annular rod holding members spaced at intervals in the axial direction for holding the protective rods, and a protective wire wound about the protective rods. When the well screen passes through a bent section of the well, the protective frame slides in contact with the wall surface of the bent section thereby protecting the screen wire.  A gap of a predetermined value is formed between the protective rods and the outer surface of the screen wire of the screen main body so that, by adjusting this gap suitably, the screen wire will pass through a bent section of the well without contacting the protective rods.  Even if the screen wire contacts the protective rods, the screen wire will not receive a damaging force from the protective rods.
Patent CA-2075794-A1 (CA)
Inventor: WORNER HOWARD K
IPC: C02F9/00
Filed: 1992-08-11
Abstract: Steelworks  dusts  or  sludge  is  mixed  into  sewage preferably in the presence of a flocculating agent to provide a rapid separation of a clear effluent and a sludge which  is  dewatered and dried  to  form a  solid material  adapted  to  entrap  harmful  materials  in  the sewage  such  as  heavy metals,  pathogens  and  organic chemicals.   The solid material is supplied to a smelt reduction furnace from which molten iron is recovered and a hot gas discharge is provided from which recovery of zinc and other materials may be achieved,  other waste material being removed as a slag.
Patent CA-2078760-A1 (CA)
Inventor: OTANI CAROL
IPC: A41C1/06
Filed: 1992-09-21
Abstract: An undergarment affording bust support and an unobstructed  view  of  the  wearer's  back  including  a panty portion,  a bra portion and joining straps.  The panty  portion  has  a  front  panel,  a  rear  panel,  and fasteners  for  joining  the  front  and  rear  panels together at the crotch.  The bra portion has a pair of cups,  a connector joining the cups at the front,  and, for each cup,  a shoulder strap for supporting the cup on a respective shoulder of the wearer.  On each side, the joining straps are a first strap joining the rear panel and a  respective one of  the cups and a second strap joining the front panel and a respective one of the  shoulder  straps.   The  first  and  second  joining straps  cross  and  are  secured  together  adjacent  a respective one side of the wearer, preferably at about waist level.
Patent CA-2083638-A1 (CA)
Title: X-ray cassette positioner and cogbelt for use therewith
Inventor: BOUTET JOHN C
IPC: G03B42/02
Filed: 1992-11-24
Abstract: X-RAY CASSETTE POSITIONER                   AND COGBELT FOR USE THEREWITH                            ABSTRACT            An x-ray cassette positioner for use with a plurality of x-ray cassettes.  The cassette positioner includes first and second conveyors.  The conveyors have a first endless cogbelt and a second endless cogbelt, respectively.  The cogbelts are spaced apart.  The cogbelts each have a plurality of outwardly extending shelves.  The conveyors each have a pair of cogwheels, each pair of cogwheels receives a respective cogbelt.  The cogbelts each have a utilization segment and a return segment.  The shelves of the utilization segment of said first cogbelt face and are in vertical alignment with corresponding shelves of the utilization segment of the second cogbelt. The aligned shelves define a cassette read site and a plurality of cassette loading sites.  A positive drive is operatively connected to both conveyors and drives the conveyors in unison to transfer cassettes loaded in the loading sites serially through the loading sites and the read site.  A body encases the conveyors.  The body has a portal adjoining the cassette sites.  The shelves of the cogbelts have an upper support surface for supporting a cassette of a first size and a lower support surface disposed below and adjacent the upper support surface for supporting a cassette of smaller size.
Patent CA-2083648-A1 (CA)
Inventor: WICKER ALAIN
IPC: H01L39/24
Filed: 1992-11-24
Abstract: ABREGE:            Procédé de traitement d'une pièce en céramique supraconductrice de type (Ln)1Ba2Cu3O7-.delta.            Procédé de traitement d'une pièce en céramique supraconductrice de type (Ln)1Ba2Cu3O-,-.delta., où Ln est choisi parmi l'ensemble des terres rares à l'exception du cérium et du terbium, procédé destiné à réduire la valeur de .delta., selon lequel on effectue un traitement thermique de ladite pièce sous atmosphère oxydante, caractérisé par le fait que, pendant ledit traitement, on fait passer dans ladite pièce un courant électrique avec une densité comprise entre 0,1 et 2A/cm2, ladite atmosphère de traitement présentant une pression partielle d'oxygène comprise entre 0,1 et 1 atmosphère, la température du traitement étant comprise entre 200°C et 500°C, la durée dudit traitement étant comprise entre 1 heure et 200 heures.     FIGURE A PUBLIER : NEANT
Patent CA-2086227-A1 (CA)
Inventor: AU VAN
IPC: C08L83/04
Filed: 1992-12-23
Abstract: The invention relates to novel personal product compositions comprising specified glycolipids, and in particular to compositions comprising nonionic aldobionamides as surface active agents in the compositions. Particularly preferred components are lactobionamide and maltobionamides.
Patent CA-2088940-A1 (CA)
IPC: F16T1/24
Filed: 1993-02-05
Abstract: In order to enable only condensate to be discharged/fed under pressure without leaking out steam independently of the respective pressures at the primary side and at the secondary side,  in a condensate discharging device comprising a condensate receiving chamber provided with a condensate inlet opening and a condensate outlet opening as well as an operating high pressure fluid inlet and outlet; a float disposed within the chamber and adapted to rise and drop along with the water level; an inlet valve connected to the float and used for opening and closing the inlet; an exhaust valve connected to the float and used for opening and closing the outlet; and check valves, one arranged at the condensate inlet opening and the other at the condensate outlet opening, the improvement comprises a valve mechanism connected to the float to open and close the outlet opening independently of the check valves, the valve mechanism being adapted to close the outlet opening (5) when the water level is low, and to open the outlet opening (5) when there is a rise in the water level, whereby after the float (21) closes the inlet (8) and opens the outlet (9), the condensate is introduced from the inlet opening (4) into the chamber (3), until the water level reaches a predetermined water level, and the outlet (9) is closed and the inlet (8) is opened, the condensate thereby being discharged from the opened outlet opening (5) when the predetermined water level is reached.
Patent CA-2091980-A1 (CA)
Inventor: YU SHOU-HWA
IPC: A61K35/42
Filed: 1991-09-25
Abstract: A foam comprising natural surfactant and a process for producing the same in situ in the lungs of a freshly killed mammal are described. Rapid flushing of a mammal's lungs in situ with saline provides a suspension of natural surfactant. Withdrawal of the suspension from the mammal via its trachea with force sufficient to cause the surfactant to foam in situ provides surfactant in a form readily collectable via the trachea in combination with the suspension. Organic solvent extraction of the foam provides a purified lipid extract surfactant having biophysical activity appropriate for clinical use.
Patent CA-2093693-A1 (CA)
Title: Process for refining bismuth
Inventor: OJEBUOBOH FUNSHO K
IPC: C22B30/06
Filed: 1993-04-08
Abstract: A B S T R A C T An improved process for deleading debismuthized dross is provided wherein the upgraded dross is treated by cupellation to form a slag until the level of bismuth in the upgraded dross reaches about 45% by weight.  After cupellation, the partially deleaded upgraded dross may be treated by conventional means such as halogenation to provide a substantially pure bismuth product.
Patent CA-2094992-A1 (CA)
Title: Sliding type magnetic head for magneto-optical recording
Inventor: NANJYO SHINICHI
IPC: G11B11/105
Filed: 1993-04-27
Abstract: A magnetic head for magneto-optical recording comprises a head body (32) having a sliding portion (37) which causes a head element to come in sliding contact with a magneto-optical disc (1). The sliding portion (37) is disposed on an inner periphery of the magneto-optical disc (1) relative to a central magnetic pole core (14a) of the head element so that, even when the central magnetic pole core 14a is located at an outer peripheral paint (A) of the magneto-optical disc (1), the sliding portion (37) can be prevented from hitting a bump portion formed on the outer periphery of the magneto-optical disc (1). Thus, in the sliding type magnetic head for magneto-optical recording, a utilization factor of a reliable recording and reproducing region of the magneto-optical disc (1) can be improved.
Patent CA-2096008-A1 (CA)
Inventor: OMMEN JOSEPH M
IPC: H01L21/50
Filed: 1991-11-18
Abstract: A microelectronics substrate assembly comprising: an advanced ceramics substrate (21) having a top surface and a bottom surface; a first metallized distribution plane (22) on said top surface and a second metallized distribution plane (26) on said bottom surface; an electrical connection (23) between said first and second distribution planes; at least one first metallized pad (24) on said top surface electrically isolated from said first distribution plane (22) and at least one metallized pad (28) on said bottom surface, electrically isolated from said second distribution plane (26), wherein said distribution planes (22, 26) and said metallized pads (24, 28) are arranged substantially symmetrically with respect to a plane between and parallel to said top and said bottom surfaces.
Patent CA-2097259-A1 (CA)
Title: Hydraulic prop having a filling valve and a clearing valve and with hydraulic fluid return
Inventor: VOSS RICHARD
IPC: E21D15/51
Filed: 1993-05-28
Abstract: ABSTRACT            A single-prop valve, in the housing of which are integrated a non-return valve for setting, a check valve for clearing, and a pressure-limiting valve to protect the prop against overloading, is provided for use in underground single-prop workings.  The valve housing of the pressure-limiting valve is moved hydraulically, in that the housing is also equipped on the clearing side with a coupler that has a locking groove and a catch projection.  A slide pin that is appropriately loaded by hydraulic pressure acts on the valve housing and moves this by a preset amount so that the check valve is opened by this and the hydraulic fluid can flow from the interior of the prop through the suction pump connector that is arranged on the setting side. Here, the channels and chambers are so dimensioned that an increased quantity of hydraulic fluid can drain off, this procedure being enhanced by a pump that is connected to the suction pump connector.
Patent CA-2097612-A1 (CA)
Title: Clip and insulator applying rail car
Inventor: BOSSHART JOHN H
IPC: E01B29/24
Filed: 1992-03-17
Abstract: An automatic rail securing device (10) mounted on a railroad car (12) upon which a device (20) for manipulating the track is mounted, as well as work positions to permit the placement of insulators (40) on the railroad ties (34) as well as clips (5). A clip securing apparatus (66) is slidably mounted to car (12) by means of wheels (15, 17) and struts (23, 25). The apparatus (66) includes two satellite stations (70, 72) which include a pair of compression members (74, 76) which automatically engage the clip (5) and secure it in a final position adjacent to the rail (32).
Patent CA-2098991-A1 (CA)
Title: Plastic-coated concrete form panel
Inventor: LU DAVID D-L
IPC: C08G18/10
Filed: 1992-01-23
Abstract: Plastic-coated substrate, such as sheet of plywood useful as concrete form panel, having a topcoat of moisture-cured isocyanate-terminated urethane prepolymer with the surface of the topcoat having high degrees of specular gloss and smoothness.
Patent CA-2100697-A1 (CA)
Title: Method and apparatus for determining the phase of a fluid
Inventor: GRABON MICHEL
IPC: F17C13/02
Filed: 1993-07-16
Abstract: ABSTRACT    A method and apparatus for determining whether a fluid, such as a refrigerant, is a liquid or a gas.  To determine whether the fluid at a predetermined level (14) of a storage container (20) is a liquid or a gas, fluid is withdrawn from the container at the predetermined level, depressurized under conditions that would cause it to become a gas if it is a liquid before such depressurization, then the temperature of the fluid after depressurization is measured and compared to a reference temperature that is or is related to the temperature of the fluid in the container.  If the temperature of the fluid after depressurization and the reference temperature are approximately equal, one can conclude that the fluid withdrawn from the predetermined level is a gas.  If the temperature of the fluid after depressurization is considerably lower than the reference temperature, one can conclude that the fluid withdrawn from the predetermined level is a liquid.  Such a determination can be used, for example, in order to shut down an apparatus (3) for transferring a refrigerant into a receiv-ing container when the liquid level in the container reaches a predetermined maximum level.
Patent CA-2105838-A1 (CA)
Inventor: MURATE MASASHI
IPC: B05B7/08
Filed: 1993-09-09
Abstract: A rotary atomizing electrostatic coating apparatus includes a plurality of paint nozzles (14, 15, 16) and a solvent nozzle (17). Each paint nozzle (14, 15, 16) communicates uniquely with a respective paint source (33, 34, 35) separate by respective paint passages which are pathwise separate from each other. In each paint passage, a respective paint valve (27, 28, 29) is installed. When changing a painting color according to the present invention, the paint filling the operating paint nozzle and the paint passage connected thereto is not washed out by a washing solvent, so that the amount of paint wasted when changing the painting color is decreased to substantially zero and the working time period for changing the painting color is also shortened. A corresponding method of use of such an apparatus is also disclosed which reduces the amount of paint wasted and the amount of solvent used during a step of switching from a first paint to a second paint.
Patent CA-2106262-A1 (CA)
Title: Tear resistant multilayer films and articles incorporating such films
Inventor: BLAND RALPH H
IPC: B32B7/022
Filed: 1993-09-15
Abstract: A tear resistant film comprises more than five layers situated one on the other in a parallel array.      The layers are individually selected from a stiff polyester or copolyester, a ductile polymeric material, and optionally, an intermediate material. The stiff polyester or copolyester is oriented in at least one direction. Tear resistance may be measured in a Graves area test and reflects the ability of the film to absorb energy. The films of the invention are useful in many articles including security control laminates for glazing members.