baber/WOPTO huggingface dataset:
Patent CA-2032517-A1 (CA)
Title: Olefin polymerization catalyst component
Inventor: MURATA MASAHIDE
IPC: C08F4/60
Filed: 1990-05-17
Abstract: The present invention relates to a catalyst for the polymerization of olefins and provides a catalyst component of magnesium support type which has a high catalytic activity as well as improved catalytic grain strength sufficient for practical use and which hardly deteriorates even after storage for a long time.  The feature of the catalyst component consists in that obtained by contacting.       (a) metallic magnesium and (b) a hydrocarbon represented by the general formula RX wherein R is a hydrocarbon group of 1 to 20 carbon atoms and X is a halogen atom, then contacting with (c) a compound represented by the general formula X1 nM(OR1)m-n wherein X1 is a hydrogen atom, halogen atom or a hydrocarbon group of 1 to 20 carbon atoms, M is boron, carbon, aluminum, silicon or phosphorus atom, R1 is a hydrocarbon group of l to 20 carbon atoms, m is the atomic valence of M and m > n ~ 0 and (d) a titanium alkoxide represented by the general formula Ti(OR2)4 wherein R2 is a hydrocarbon group of 1 to 12 carbon atoms, and then contacting the resulting solid with (e) an olefin in the presence of (f) an organoaluminum compound, then with (g) a halogencontaining alcohol and further with (h) an electron donating compound and (i) a titanium compound
Patent CA-2033144-A1 (CA)
Inventor: CHARMOT DOMINIQUE
IPC: C08L83/05
Filed: 1990-12-24
Abstract: Magnetisable composite microspheres made up of a core consisting of magnetisable fillers distributed uniformly in a lattice of a polysilsesquioxane (SiVi) containing ethylenic unsaturations and a skin made of a crosslinked organosilicon polymer derived from the hydrosilylation of an organohydropolysiloxane (SiH) with the ethylenically unsaturated groups of the polysilsesquioxane SiVi. 
<??>They are obtained by dispersion in a solvent of an aqueous suspension of magnetisable fillers not coated with dispersing agent, dissolving of an alkoxysilane or of an alkoxysiloxane containing ethylenic unsaturations, polycondensation to a polysilsesquioxane SiVi, removal of water, dissolving of the SiH polymer in the organic phase, crosslinking, removal of water, isolation of the microspheres and optionally redispersion in water. 
<??>Use as active support in biology.
Patent CA-2033615-A1 (CA)
Title: Method and apparatus for automatically replacing a full winding reel with a new winding tube
Inventor: DROPCZYNSKI HARTMUT
IPC: B65H19/30
Filed: 1991-01-04
Abstract: The machine winds a continuous strip (5) of paper or cardboard into a roll (4). When the roll has been wound to the required size, it is removed and a new core (16) is put in its place and a new roll is then wound. The full roll is removed and a new core placed in position in the following way. The strip (5) of paper or cardboard passes over a device (10) which forms a transverse line of perforations whilst dispensers apply adhesive to both sides of the line of perforations. The tension in the strip is increased so that it is torn along the perforations. The end of the part of the strip attached to the roll is bonded to the roll. The roll is then removed and replaced with a new core and the free end of the strip is then bonded to the new core (16).
Patent CA-2035149-A1 (CA)
Title: Blends of polycarbonates and aliphatic polyesters
Inventor: LUNDY CHARLES E
IPC: C08L67/02
Filed: 1991-01-29
Abstract: BLENDS OF POLYCARBONATES AND ALIPHATIC POLYESTERS                 ABSTRACT OF THE DISCLOSURE         The present invention concerns a thermoplastic molding composition comprising a homogeneous blend of (i) a polycarbonate resin and (ii) a polyester resin derived from neopentyl glycol and an aliphatic diacid.  The components of the blend were found to be completely miscible and the blend to exhibit a single glass transition temperature.  The composition of the invention is suitable for the preparation of useful molded articles having improved optical properties.
Patent CA-2037524-A1 (CA)
Title: Ultrasonic testing apparatus and method for rapidly inspecting a large number of gas cylinders of similar design for internal neck-shoulder defects
Inventor: PACIEJ RICHARD C
IPC: G01N29/04
Filed: 1991-03-04
Abstract: ABSTRACT OF THE DISCLOSURE     ULTRASONIC TESTING APPARATUS AND METHOD FOR RAPIDLY INSPECTING      A LARGE NUMBER OF GAS CYLINDERS OF SIMILAR DESIGN      FOR INTERNAL NECK-SHOULDER DEFECTS   The   present  invention  provides  an  apparatus  and  method  for ultrasonically testing the internal neck-shoulder region of a large number of gas cylinders for radially oriented defects.  The apparatus and method includes housing an ultrasonic transducer within a shoe in a predetermined orientation wherein the transducer 1s wedged at a wedge angle so that ultrasonic pulses travel directly through the shoulder region to the top and bottom of the internal  neck-shoulder region and is also outwardly skewed within the shoe at a skew angle such that the radially oriented defects  reflect  the  ultrasonic  pulses  and  produce  return  echoes.   An automated  scanner  moves  the  shoe  and  therefore   the  transducer  in  a predetermined pattern such that the entire internal  neck-shoulder region of the gas cylinder is scanned.  The scanner is supported by a stand that allows  the automated scanner to be rapidly set up on the gas cylinders being tested.  A processor activates the transducer to produce ultrasonic pulses  controls the automated scanner and responds to the return echoes for indicating the presence of the radial defects that require the removal of a particular one of the gas cylinders from service.
Patent CA-2039246-A1 (CA)
Title: Driving and supply unit for a cooler
Inventor: HUEBER JOSEPH
IPC: E21F3/00
Filed: 1991-03-27
Abstract: ABSTRACT      A driving and supply unit is provided with an air channel for drawing in hot air and delivering the air via a fan to a spray cooler with spray nozzles for spraying droplets of water into the conveyed air for cooling the air.  Cooling water is delivered via a high-pressure water pipe and is first fed via a control to an impulse turbine with a reduction gear for driving the fan.  The water is collected downstream of the turbine and is fed via a water pipe to the spray nozzles of the cooler.
Patent CA-2042525-A1 (CA)
Title: Reflector
Inventor: BENNETT REGINALD B
IPC: G02B5/124
Filed: 1991-05-14
Abstract: A direction indicating reflector uses two planar reflecting panels arranged at an included angle of about 60° to each other. Each panel provides an optically exposed plurality of cube corners arranged in triads of mutually perpendicular retro reflectant surfaces which are not individually distinguishable at minimum expected viewing distances.
Patent CA-2044988-A1 (CA)
Title: Discharge valve for a fuel tank
Inventor: BENNING FRIEDRICH
IPC: F02M37/00
Filed: 1991-06-19
Abstract: DISCHARGE VALVE FOR A FUEL TANK   Abstract of the Disclosure A discharge valve for the fuel tank of a vehicle is provided with two inlet ports that are connected by lines to suction ports in the bottom region of the fuel tank, as well as at least one outlet port connected to a fuel pump.  Within the discharge valve blocking means are provided that can close the normally open connecting channels between inlet ports and outlet ports.  The blocking means can be controlled by a body that moves under the influence of gravitational or inertia forces, preferably a ball.  A simple, cost effective assembly that is easily manufactured results from the fact that the ball is arranged between at least two abutments of a cage that can be moved by the ball.  Here the distance between the abutments is greater than the corresponding dimension of the ball.  The cage is connected with the blocking means in such a way that the blocking means can be actuated by movement of the cage.
Patent CA-2048191-A1 (CA)
Title: Automatic machine for manufacturing hygienic, disposable kitchen utensils
Inventor: CHEN LIANG-ERH
IPC: A23G3/02
Filed: 1991-07-31
Abstract: ABSTRACT OF THE DISCLOSURE:         An automatic machine for manufacturing  disposable kitchen  utensils  by  using  grains of  all  sorts  as  raw material.      A molding die set and a plurality of maturing die  sets  are  arranged  in  line  at  equal  interval  and respectively  connected  to a programmable  control  device.          Mechanical hands are simultaneously carried by a link rod to remove a molded piece from the molding die set to the  first maturing  die  set or from one maturing die set  to  a  next maturing  die  set for further  processing  and  immediately removed  back  to  original  position for  next  cycle   of operation.
Patent CA-2050734-A1 (CA)
Title: Centralized order taking system
Inventor: KERNAN KARA
IPC: G06Q10/08
Filed: 1991-09-05
Abstract: ABSTRACT OF THE DISCLOSURE    A system for accepting orders from requestors located in a  plurality  of  independent geographical  regions  for  a plurality of items that are stocked in a plurality of local stores in respective predetermined arrangements, in which the local stores are located in the plurality of independent geographical regions.  The item arrangements can be coded in accordance  with  product  group  identifiers,  in  order  to facilitate  mapping  of  the  stores  by  item  group,  and subsequently  minimize  order  selection  time  by  an  item selector.  A respective requestor is assigned to one of the plurality of local stores.  The requestors communicate their orders to a central order taking facility, which arranges each of  the  orders  so that  they correspond to  a  respective predetermined arrangement that corresponds to the mapping of items in a local store in a respective geographical region assigned to the respective requestor.
Patent CA-2051781-A1 (CA)
Title: Carboxylic acid esters of rapamycin
Inventor: CAUFIELD CRAIG E
IPC: A61K31/70
Filed: 1991-09-18
Abstract: ABSTRACT          A compound of the structure   wherein R1, R2, and R3 are each, independently, hydrogen or   with the proviso that R1, R2, and R3 are not all hydrogen;          R4 is -(CH2)mX(CH2)nCO2R5  or   ; R5 and R6 are each, independently, alkyl, aralkyl, or phenyl which is optionallymono-, di-, or tri-substituted with a substituent selected from alkyl, alkoxy, hydroxy, cyano, halo, nitro, carbalkoxy, trifluoromethyl, amino, or a carboxylic acid;          X is  , O, or S;          R7 and R8 are each, independently, hydrogen or alkyl; Y is CH or N; m is 0-4; n is 0-4; with the proviso that m and n are not both O when X is O or S; or a pharmaceutically acceptable salt thereof, which is by virtue of its immunosuppressive activity is useful in treating transplantation rejection, host vs. graft disease, autoimmune diseases, and diseases of inflammation, and by virtue of itsantifungal activity is useful in treating fungal infections.
Patent CA-2052882-A1 (CA)
Title: Cantilever type probe, scanning tunnel microscope and information processing apparatus using the same
Inventor: NOSE HIROYASU
IPC: G01Q60/00
Filed: 1991-10-07
Abstract: A cantilever type probe comprising a piezoelectric bimorph cantilever containing a piezoelectric material provided between driving electrodes for driving a cantilever, a probe formed thereon and a drawing electrode for a probe provided along the surface where a probe is formed, wherein there is provided a shielding electrode for electrically isolating the probe and the drawing electrode from the driving electrodes.
Patent CA-2053560-A1 (CA)
Inventor: TIFFIN IRA
IPC: G03B11/00
Filed: 1991-10-16
Abstract: Accessories are self-mounted on and removable from a camera by the use of locking portions which are resiliently and cantileverly mounted on each accessory.
Patent CA-2053725-A1 (CA)
Title: Hydroquinone diethers, the preparation thereof and the use thereof for controlling pests
Inventor: NUEBLING CHRISTOPH
IPC: C07D231/12
Filed: 1991-10-18
Abstract: O.Z. OOSO/41965 Abstract of the Disclosure: Hydroquinone diethers of the formula I                                I   where A1 and A2 are substituted or unsubstituted alkylene; R1 is hydrogen, halogen or alkyl; R2 is substituted or unsubstituted pyrazolyl or pyridyl; X is a substituted or unsubstituted 5-membered hetero-aromatic radical, are prepared as described using the described inter-mediates, and are used as pesticides.
Patent CA-2053933-A1 (CA)
Inventor: GREENBERG NORMAN A
IPC: A23L29/238
Filed: 1991-10-22
Abstract: A nutritionally complete feeding composition containing hydrolysed soluble fiber, especially hydrolysed guar gum or hydrolysed pectin providing nourishment to colon cells, preventing bacterial sepsis and also preventing diarrhea.
Patent CA-2053958-A1 (CA)
Title: Gradual release structures for chewing gum
Inventor: BRODERICK KEVIN B
IPC: A23L27/00
Filed: 1991-10-22
Abstract: ABSTRACT OF THE DISCLOSURE           Gradual release structures for the release of active agents in chewing gum and a process for making such structures are provided.  The gradual release structures are formed by meltspinning techniques and comprise an active agent and a wall material.
Patent CA-2054190-A1 (CA)
Title: Proteins suitable for combating disease and for protecting grazing cattle from ticks
Inventor: FRIEDRICH THOMAS
IPC: C07K14/81
Filed: 1990-09-18
Abstract: O.Z.  0050/41125 Novel proteins and the preparation thereof Abstract A novel protein with the molecular weight of about 15,000 dalton and the N terminus SDYEFPPPKKXRPG is described.  The  protein  is suitable  for  controlling diseases and for protecting grazing cattle against ticks.
Patent CA-2054583-A1 (CA)
Inventor: HARRIS RICHARD H
IPC: G02F1/1333
Filed: 1991-10-31
Abstract: Described  is  an  electronic  shelf  label  LCD  device having a segmented liquid crystal (LC) film disposed on a plurality of segmented and non-segmented photovoltaic cells which  provide  power  for  driving  the  LCD  device  and electrical signals which are used to indicate malfunctioning LCD segments.
Patent CA-2056799-A1 (CA)
Inventor: IKAWA HIROSHI
IPC: C07D213/82
Filed: 1991-11-29
Abstract: 1,4-dihydropyridine derivatives and optically active 1,4-dihydropyridine derivatives with the following formula, having vasodilating activity based on calcium antagonism, and PAF antaognism, and methods of producing the same are disclosed:   (see formula I) wherein (*) indicates a chiral center in the case of the optically active 1,4-dihydrapyridine derivatives.
Patent CA-2057246-A1 (CA)
Title: Space frame structure
Inventor: KUBIK LESZEK A
IPC: E04B1/19
Filed: 1991-12-06
Abstract: ABSTRACT            A space frame structure comprises an upper rectangular grid (15) of structural members, a lower grid (16) of structural members and interconnecting members (14) joining the grids together to form a space frame.  A concrete layer (50) is poured on to shuttering (41) carried by lower flanges (35T, 35I)  of  the upper grid members  (15)  with these upper members  partially  embedded  in the  concrete  to  form  a composite upper layer.  At least two upper members (15I) of each grid rectangle have upper flanges embedded in the concrete, and at least one of the members (15T) from the same  grid  rectangle  is  without  an  upper  flange  to facilitate installation of the shuttering.
Patent CA-2057772-A1 (CA)
Inventor: LEMPERIERE FRANCOIS
IPC: E02B8/06
Filed: 1991-12-20
Abstract: In order at less cost to replace particular sluices so as to close off virtually permanently, except during the passage of exceptional floods, all or part of the free spill-over sill (6) of a barrage, the invention provides the arrangement on the sill (6) of the spillway (5) a shutter (10) consisting of at least one solid element (11), said shutter (10) or the shutter elements (11) being made fusible by tilting for a predetermined water load corresponding to a level (N) at most equal to the maximum level (RM) and then allowing the passage of the exceptional floods, smaller floods being discharged by means of another permanent device (7). 
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Patent CA-2057983-A1 (CA)
Title: Disc brake assembly and brake pad for use therewith
Inventor: PELFREY RICK D
IPC: F16D65/847
Filed: 1991-12-18
Abstract: ABSTRACT           A  disc  brake  assembly  is  described  which includes a rotor, a cylinder housing, a brake pad carrier displaceably mounted on the housing, and pistons mounted on the housing for displacing the pad into engagement with the rotor.  The disc brake assembly is characterized by a brake pad being tapered in width along its length, the brake pad having an inner surface positioned adjacent to the rotor and being mounted on the carrier such that a leading edge of the pad which is first swept by the rotor when rotating in a forward direction,  is wider than a trailing edge of the pad, so that the taper is oriented in a direction of forward rotor rotation such that an area of the pad adjacent to the leading edge is greater than an area adjacent to the trailing edge, whereby even wear  of  the  inner  surface  of  the  pad  is promoted. Accordingly, the brake-engageable surface of the pad is at its greatest in the areas that are most subject to wear and the frictional wear on the pad is spread more evenly over the length of the pad.
Patent CA-2063806-A1 (CA)
Title: In-the-ear hearing aid with sound compensating channel
Inventor: TOPHOLM JAN
IPC: H04R25/02
Filed: 1990-07-06
Abstract: ABSTRACT            The invention relates to an in-the-ear hearing aid for persons with impaired or defective hearing with a ear mold which contains a microphone, amplifier, earphone, battery compartment with battery and a compensating channel leading from inside to outside and which is covered by a cover plate. The compensating channel (2, 2A) encloses at least part of the sound outlet channel (4) from the earphone (5) either partially or completely. Adjacent  to this section (2A) is a further section (2B) which continues past the earphone (5) in the direction of the cover plate (3) and which is at least partially an integral part of a unit (6) which contains the earphone (5) and which simultaneously forms the transition between the two parts (2A, 2B) of the compensating channel.
Patent CA-2066691-A1 (CA)
Title: Rack
Inventor: TIPTON RICHARD E
IPC: B65G1/02
Filed: 1991-07-12
Abstract: A rack includes a shelf in which the means for connecting the shelf members together and for locking the shelf members together are integral with the shelf members.
Patent CA-2076666-A1 (CA)
Inventor: JAFFE DAVID H
IPC: G11B20/18
Filed: 1991-02-27
Abstract: A mass storage apparatus, made up of a plurality of physical storage devices, which is capable of providing both high bandwidth and high operation rate, as necessary, along with high reliability, is provided. The device set is divided into one or more redundancy groups. Each redundancy group is in turn divided into one or more data groups, each of which may span only a small number of the drives in the redundancy group, providing a high request rate, or which may span a large number of drives, providing high bandwidth.
Patent CA-2076898-A1 (CA)
Inventor: CARLSON JAMES J
IPC: G02B23/00
Filed: 1992-08-26
Abstract: A portable missile launcher has both a direct viewing optical system (12) and a thermal or infrared imaging system (24) for use in detecting a target (16) and aiming the launcher.  The two systems (12, 24) are individually selectable for viewing via a single eyepiece (20) on manipulation of a lever (46) that positions a mirror (32) to either block the optical system while reflecting an infrared image to the eyepiece (20) or block the infrared image and allow the optical system to produce an image at the eyepiece.
Patent CA-2077026-A1 (CA)
Title: Rotation promoting means for rotating shaft and power generation system provided with said rotation promoting means
Inventor: SUEHIRO TAKEO
IPC: F03G3/00
Filed: 1992-08-27
Abstract: ABSTRACT OF THE DISCLOSURE    The object of the present invention is to provide a power generation system industrially cost-effective, in which a power generator is rotated by a motor by utilizing gravitational energy, and also to provide rotation promoting means for a rotating shaft to be used in said power generation system.    The arrangement according to the present invention is characterized in that a plurality of weights are rotatably mounted with spacings on outer periphery of a rotating wheel, which is mounted on a rotating shaft, that said weights are set in open position and project outwardly when moving down in rotating direction, and the weights are set in closed position when moving up in rotating direction, and that there are provided a motor for rotating said rotating shaft and a power generator for generating electric power when rotated by said rotating shaft.
Patent CA-2077187-A1 (CA)
Title: Cast-in-place iron-based cylinder liners
Inventor: MARTIN ROBERT A
IPC: B22D19/00
Filed: 1992-08-28
Abstract: Abstract of the Disclosure A cast-in-place liner construction useful in low pressure casting of hollow aluminum parts.  The construction has an iron-based cylindrical body with a surface thereof imprinted with a repeating pattern of crossed groups of relief grooves, each groove forming a helix along such surface, the spacing (.20-.30) between such grooves and the depth (.02-.04 inch) of such grooves being uniformly controlled to permit the grooves to act as molten aluminum runners during low pressure casting of the aluminum that facilitates laying-up of the aluminum along the entire surface.         Also, a method of deploying such liner, comprising: (a) imprinting a cylindrical surface of a sleeve designed to interface with cast aluminum thereagainst, the imprinting providing a quilted pattern of shallow crossing grooves (included angle 35-55°) sized and spaced to promote transfer of molten aluminum during low pressure filling of the mold containing such sleeve; and (b) planting the liner in such mold and introducing aluminum thereagainst at a low pressure to form a desired aluminum casting.
Patent CA-2077544-A1 (CA)
Inventor: CARR CHARLES W
IPC: B01D24/02
Filed: 1992-01-09
Abstract: A continuous process for the separation of small particles from larger particles in a biological preparation passes a liquid stream of the preparation through a first filter (102), which retains larger particles, passing smaller particles in the liquid. The large particles have retained on their surfaces wetting water, in which are entrained some of the small particles. The large particles are directed to a liquid having a concentration of smaller particles lower than the concentration of smaller particles in the wetting water, and mixed in the mixing device (106). The smaller particles separate from the larger particles in the mixed suspension, which is then directed to a second filter (108) for further separation. The smaller particle/liquid stream may be recycled to the biological preparation stage, the liquid suspension for large particles, or to a separator means (122) where the smaller particles are separated off from the liquid stream.
Patent CA-2080606-A1 (CA)
Inventor: FUTAMURA SHOJI
IPC: B21D43/05
Filed: 1992-10-15
Abstract: An index-feed machining system having such a construction that a plurality of machining units on which a cassette incorporating a plurality of machining means is detachably mounted are disposed at intervals of mp (m being a given positive integer, p being a workpiece-feeding pitch) in the workpiece-feeding direction corresponding to a plurality of machining processes; the machining processes being sequentially performed by the machining units at the workpiece-feeding pitches, in which drive means for driving the machining means are provided in the cassette comprising a plurality of machining units, and the driving force of the driving means of a particular machining unit is made larger than the driving force of the driving means of other machining units.