baber/WOPTO huggingface dataset:
Patent CA-2046511-A1 (CA)
Inventor: BORRACCIA DOMINIC
IPC: B01F7/00
Filed: 1991-07-09
Abstract: MIXER IMPELLER SHAFT ATTACHMENT APPARATUS              A B S T R A C T A mixer impeller, which is adapted to mix and blend liquids and liquid suspensions in industrial and commercial applications and is subject to forces which tend to work the impeller loose from attachment with its driving shaft, is secured to the shaft by collars (locking rings) which are threaded on the ends of hubs from which the blades of the impeller extend.  In order to secure the attachment of the collars to the hub, a locking key is inserted between the collar and the shaft.  The key has a neck which is located in a keyway also used to key the hub to the shaft, in an impeller mounting area on the shaft.  The locking key has a shoulder which bears against surfaces on the collar extending away from the hub.  The inner periphery of the collars are tapered outwardly away from the shaft.  The neck of the locking key has portions which are deflected against these tapered inner periphers when a pin is inserted through the neck of the locking key.  A ramp on the collar mates with a ramp on the key to prevent reverse rotation (working loose) of the collar.  In locking position, the keys lock the collar and, therefore, the entire impeller to the shaft, since they are restrained against axial movement by the collar and against rotational movement by being keyed to the shaft and restricted by the ramp on the collar.  Removal of the key for impeller replacement and maintenance is readily accomplished using the ramps on the surfaces of the collars and shoulder of the key which bear against each other.  Upon removal of the locking pin, the inside of the neck deflects inwardly and the key is urged out of the collar, when the collar is unscrewed from the hub.
Patent CA-2046797-A1 (CA)
Title: Heat exchange arrangement in a gas turbine engine fan duct for cooling hot bleed air
Inventor: PARSONS FRANKLIN D
IPC: F02C7/08
Filed: 1991-07-11
Abstract: ABSTRACT OF THE DISCLOSURE       A heat exchange arrangement in an annular fan duct of a gas turbine engine includes a conduit routing hot bleed air flow, a heat exchanger disposed within the fan duct and connected with the conduit such that hot air is passed through  the  interior  of the  heat exchanger, and at least one and preferably a pair of partition members disposed within the fan duct  for temporarily diverting a small portion of the main air flow from the fan duct and over the exterior of the heat exchanger in heat transfer relationship with the hot air passing  through  the  interior  of the  heat exchanger. The small air flow portion rejoins the main air flow through the fan duct and is used to generate engine thrust after cooling the hot bleed air flow carried by the conduit. The partition members disposed adjacent to opposite sides of the heat exchanger and a support  member  define  therewith  an air diffusion passage through which the small fan duct air flow portion is diverted temporarily from the main fan duct air flow. The passage has an inlet and an outlet communicating with the main air flow and is larger in cross-sectional  size  at  the  location  of  the  heat exchanger than at the inlet and outlet such that the small  air  flow portion decreases in velocity after entering the  passage  through  the  inlet  and  before reaching  the heat  exchanger  and  then  increases in velocity  after  leaving  the  heat  exchanger  and approaching the outlet.
Patent CA-2047499-A1 (CA)
Inventor: TIRAMANI PAOLO
IPC: A45D27/22
Filed: 1991-07-22
Abstract: ABSTRACT OF THE DISCLOSURE      A case for the storage of single edged razors is formed as a unitary molding  comprising a  first  tubular portion  for reception of a handle of the razor, and a second tubular portion offset on one side of a plane including the longitudinal axis of the first portion for the reception of the neck and blade of the razor, the second tubular member being comprised of two portions interconnected one with the other by a living hinge.          The hinged portion being provided with a locking member for cooperation with the first tubular member.
Patent CA-2050264-A1 (CA)
Title: Substituted pyrazine and its salts, compositions containing them and their use in medicine
Inventor: BAKER RAYMOND
IPC: A61P25/28
Filed: 1991-08-29
Abstract: ABSTRACT            A substituted pyrazine and its salts, compositions containing them and their use in medicine 3(R)-[2-(6-trifluoromethylpyrazin)yl]-1-azabicyclo[2.2.2]octane and its salts, and pharmaceutical formulations thereof are useful in medicine.  In particular, they are useful for the treatment of neurological and mental illnesses whose clinical manifestations are due to cholinergic dificiency, and for lowering intraocular pressure.  The compound may be prepared by dehydroxylating or decarboxylating the corresponding 3-hydroxy- or carboxy-quinuclidine analogue.
Patent CA-2050738-A1 (CA)
Title: Apparatus for continuously monitoring a plurality of chemical analytes through a single optical fiber and method of making
Inventor: YIM JEFFREY B
IPC: A61B5/145
Filed: 1991-09-05
Abstract: APPARATUS FOR CONTINUOUSLY MONITORING   A PLURALITY OF CHEMICAL ANALYTES THROUGH A SINGLE OPTICAL FIBER AND METHOD OF MAKING              Abstract of the Disclosure A CO2/O2 or pH/O2 gas sensor comprising a single optical fiber and a method for making the same. The optical fiber carries light signals at differentwavelengths for monitoring either CO2 concentration or pH level, in combination with O2 concentration. Attached to the distal end of the fiber-optic probe is a cylindrical pellet that has one surface covered by a light reflective material (gold foil) and the other surface attached adjacent to the distal end of the optical fiber. Depending on whether the sensor is to monitor either CO2 or pH, the pellet comprises either a CO2 analyte indicator molecule or a pH analyte indicator molecule covalently bonded to a polymer matrix material. Also adjacent to the distal end of the optical fiber is disposed a second polymer matrix material which is codissolved with an O2 analyte reactive indicator molecule. The second polymer matrix material is either interposed between the cylindrical pellet and the distal end of the optical fiber or surrounds the cylindrical pellet. If pH is being measured, the distal end of the optical fiber is coated with a hydrophilicmaterial that is permeable to water. Conversely, if CO2 is being monitored, the distal end is coated with a hydrophobic material.     RMA/klp
Patent CA-2055343-A1 (CA)
Title: Active filtering mixer
Inventor: BRAATHEN RUSSELL E
IPC: H03H11/04
Filed: 1991-11-12
Abstract: ABSTRACT OF THE DISCLOSURE      An active filtering mixer has a feedback arrangement, by means of which unwanted components in the output of the mixer are fed back, out of phase, to an input of the mixer for substantially canceling such components dynamically within the mixer, itself.  In so doing, active filtering mixers in accordance with the invention largely avoid the undesirable effects these components can have on signal processing in downstream devices, and within the mixer.  The feedback arrangement also stabilizes the mixer's DC operating point, and thereby can maintain the maximum dynamic range of the mixer.  Preferably, the desired components of the output are also fed back, but to a substantially smaller degree than the unwanted components, thereby linearizing the in-band output of the mixer, and generally improving the mixer's performance over the entire spectrum of its output.
Patent CA-2055614-A1 (CA)
Title: Rock tongs for excavators
Inventor: RUF PETER
IPC: E02F3/40
Filed: 1990-04-04
Abstract: WO91/15635                  (8)            PCT/CH90/00090 ABSTRACT   These rock tongs for an excavator solve an old problem, namely that large rocks which are exposed when earth is removed cannot be lifted with the normal excavator shovel. This problem is solved in the present patent with two additional gripper arms or tongs parts (1), which can be mounted on the normal excavator shovel (2) and controlled hydraulically. As a result very large rocks exposed in the course of excavation can be gripped in a tongs-like manner and removed.
Patent CA-2058289-A1 (CA)
Title: Bagging arrangement for synthetic resin component processing apparatus
Inventor: WILSON ROBERT S
IPC: B29B13/00
Filed: 1991-04-04
Abstract: Component processing apparatus for curing and/or moulding synthetic resin composites in the production of components comprises a component support (11) on which a component (15) is mounted and on which is formed at or in the region of its periphery a sealing edge (14) extending around the periphery of the support (11), and a bagging arrangement for use with the support (11) comprising a collapsible bagging blanket (8) which in use is extended across the component (15) and the component support (11) and which is tensioned to bring it into engagement with the sealing edge (14) on the support. The component support is made re-entrant beyond the sealing edge (14) to form a re-entrant zone and the blanket (8) is so formed as to receive and receives at its periphery draw means (19) by which the length of the blanket periphery can be varied from an extended length which allows the blanket (8) to be placed over the component (15) and the component support (11) and into a covering disposition in which it covers the component (15) and the component suppport (11) and in which the blanket periphery extends beyond the sealing edge (14) on the component support (11) to a reduced length which in the covering disposition of the blanket (8) brings the blanket periphery into the re-entrant zone and the blanket (8) against the sealing edge (14) on the component support (11).
Patent CA-2058369-A1 (CA)
Title: Current sink
Inventor: BENZ PAUL
IPC: H03H11/48
Filed: 1991-12-23
Abstract: A circuit arrangement for a current sink is specified which has a high impedance for currents within a predetermined frequency range. In the simplest case, the current sink consists of a transistor or field-effect transistor, the switching current path of which receives the sink current and the control connection (B) of which is connected to the input (E) of the switching current path by a component (C1) which is selectively transparent for the predetermined frequency range. <IMAGE>
Patent CA-2058852-A1 (CA)
Title: Device for the measurement of the diameter of cylinders and more particularly of rolls
Inventor: BAEHR THEODOR
IPC: G01B7/12
Filed: 1992-01-07
Abstract: Abstract of the Disclosure The invention relates to a device for the measurement of the diameter of a body such as a cylinder, more particularly in the form of a workpiece, on a roll grinding machine, comprising a contact wheel adapted to run on the surface of the body and a rotational pickup (angle encoder) centrally coupled with or provided with same, and furthermore a pickup, which is adapted to indicate at least full revolutions of the body. The invention is characterized in that the cylinder is also coupled with a rotational pickup (angle encoder), which like the other rotational pickup has high pulse rate, and for each measurement operation one respective start pulse and end pulse of one of these two pickups is utilized in order, with corresponding pulses of the second pickup, to calculate the diameter, in that a computer is provided which, by interpolation in each measurement operation of the registered pulses of at least one of the pickups and preferably that of the cylinder, produces at least one intermediate pulse series with increments, which are respectively smaller than the fixed increments of the pickup, of which one corresponds with such accuracy to the one end measurement pulse received approximately simultaneously of the one or normal pulse series of the other rotational pickup that for the input into the central processing unit of the computer a degree of progression, constituted by angle increments of the roll and relating to the roll periphery on the one hand and on the other hand a peripheral extent corresponding to this degree of progression, constituted by angle increments of the rotational pickup of the contact wheel, multiplied by a peripheral extentcorresponding to one of these angle increments, of the same for the calculation of the cylinder diameter on the basis of local angular velocity v, so determined, of the cylinder surface, of the angular velocity of the cylinder and of the known contact wheel diameter.
Patent CA-2059054-A1 (CA)
Title: Camera unit for sheet surface flaw detection apparatus
Inventor: MIHARA TOSHIRO
IPC: G03B17/02
Filed: 1992-01-08
Abstract: Abstract of the Disclosure The principal structure of a camera unit housing is formed of one material of copper, a copper alloy, aluminum, and an aluminum alloy by the extrusion method or the drawing method.  In this housing, a plurality of cameras are stored in an array.  Each camera includes a charge coupled device (CCD) linear array image sensor and an optical system for forming an image on the CCD linear image sensor.  Windows are formed in the housing at positions opposing the CCD linear array image sensors to sandwich the optical systems therebetween, and trans-parent window glasses are fitted in the windows.  A minimum camera mounting pitch is almost equal to an integrated circuit (IC) package length of the CCD linear array image sensors.  Independent cooling fluid flow paths for flowing a cooling medium therethrough are arranged on the inner and outer surfaces of the housing.          A bus line for supplying a power supply voltage and a start signal to the cameras is mounted to be in tight contact with the inner surface of the housing.
Patent CA-2063599-A1 (CA)
Title: Container for cards or the like flat objects
Inventor: COZENS RAYMOND D
IPC: A45C11/18
Filed: 1990-07-24
Abstract: A credit/debit/security card dispenser consists of a casing (10) in which one or more trays (14) are slidable to a limited extent between a fully retracted position; and an extended position in which a card may be removed from or reinserted onto the tray(s) (14), this being facilitated by the front portion (54) being hingedly (56) connected to the rest (55) of the tray (14). The sliding movement of the tray (14) is actuated by the user's finger via a button (78) projecting from the tray (14) to the outside of the casing (10), the movement being guided and limited by a specially shaped aperture (30) in the casing (10).
Patent CA-2066088-A1 (CA)
Title: Sensor for intrauterine use
Inventor: CHUNG CHRISTOPHER
IPC: A61B5/1464
Filed: 1992-04-15
Abstract: A sensor placement and retention mechanism for use with fetal sensor sites beyond the uses reach are disclosed. The preferred embodiment of this invention is a fetal pulse oximetry sensor having an active face through which a light source and a light detector operate. The sensor includes a handle that facilitates placement of the active face at a sensor site in a preferred region beyond the transcervical region and beyond the reach of the user. A pair of electrodes--one disposed against the fetus' skin and one exposed to the amniotic fluid--are used to confirm that the sensor is firmly in place on the fetus. In an optional sensor retention feature, a self-inflating bladder presses the active face of the sensor against the fetus' skin to optically couple the sensor with the tissue at the sensor site.
Patent CA-2066778-A1 (CA)
Inventor: PUDNEY RICHARD
IPC: B60R9/04
Filed: 1991-04-30
Abstract: An article securing member for an automobile luggage rack is provided with a spring biased retractable lock pin which can selectively engage a plurality of longitudinally spaced apertures formed in the side rail of the rack. A push button is provided for actuating a lever link which lifts the retractable lock pin against the spring bias when the button is depressed to disengage the lock pin from the apertures and permit sliding movement of the article securing member along the side rail.
Patent CA-2067422-A1 (CA)
Title: Housing for a rotatable shaft
Inventor: BURTON ED
IPC: F16C11/04
Filed: 1992-04-28
Abstract: ABSTRACT            This invention relates to a housing for a rotatable shaft, particularly one used in the drive mechanism of a windscreen wiper assembly,  The housing comprises a body portion having first and second ends disposed oppositely to and axially remote from each other, the body portion being provided with an integrally formed retaining member adapted to maintain the axial positioning of the rotatable shaft.  Another embodiment of the invention provides on the second end of housing means for biasing the body portion in the axial direction.
Patent CA-2067908-A1 (CA)
Title: Pearlescent toners having reduced stain characteristics
Inventor: GRUBB EUGENE L
IPC: G03F3/10
Filed: 1992-05-01
Abstract: TITLE PEARLESCENT TONERS HAVING REDUCED STAIN CHARACTERISTICS        ABSTRACT Undesired stain is minimized for pearlescent toners, adapted for toning elements having non-tacky and tacky areas that define an image, by including in the toner inert, substantially spherical particles having a particle size of approximately 0.3 to 42 microns and by including a slip-agent surface coating on at least the pearlescent pigment particles, and preferably also on the inert, substantially spherical particles.
Patent CA-2068606-A1 (CA)
Inventor: WATERFIELD PHILIP C
IPC: A61K8/49
Filed: 1992-05-13
Abstract: The present invention relates to a dentifrice composition comprising a stannous compound that releases stannous ions in the composition such as stannous fluoride or stannous pyrophosphate. These stannous ions can be converted in the composition into the inactive stannic ions, and to prevent such conversion according to the present invention an antioxidant is incorporated into the composition, such as butylated hydroxyanisole, butylated hydroxytoluene and ethyl vanillin.
Patent CA-2069367-A1 (CA)
Title: Pharmaceutical compositions with immunosuppresive properties
Inventor: LEON ALBERTA
IPC: A61P37/06
Filed: 1992-05-25
Abstract: ABSTRACT          A  new  therapeutic  use  of  phospholipid  derivatives  as immunosuppressants  is  described,  these  phospholipid derivatives having a general formula (I):                     (I) wherein A = H; -(CH2)nOH, -(CH2)n-O-CO-R (with n= 1, 2);        B =  , -(CH2)m-O-CO-R (with m= 1,2,3,4) with the limitation that when A = -(CH2)n-O-CO-R, m = 1,2; and Y = serine or inositol, and wherein the R groups may be the same or different, and are radicals of acids that are aliphatic, aromatic,  arylaliphatic,  alicyclic,  or heterocyclic on  the condition that at least one R group is the radical of    a monounsaturated or polyunsaturated fatty acid, and is   preferably chosen from the group consisting of palmitolic acid, oleic acid, linoleic acid, linolenic acid, and arachidonic acid.
Patent CA-2072041-A1 (CA)
Title: Method and apparatus for determining the orientation of a document
Inventor: STEVENS MARK A
IPC: B07C3/02
Filed: 1992-06-23
Abstract: To identify the orientation of specified documents, such as checks bearing magnetic ink markings, steps are taken to magnetize ink markings associated with the document, and to then detect magnetized ink markings on the document to develop electrical signals which cad then be subjected to processing for identifying the orientation of the document based upon certain preestablished criteria. The result is a stand-alone device adapted to operate upon documents which are contained within envelopes to be subjected to an extraction procedure, prior to extraction from the envelopes, achieving a pre-processing of envelopes to identify those which contain the specified documents, and the orientation of the identified documents. The device is similarly adapted to operate upon the extracted documents, to identify those requiring special handling, and their orientation.
Patent CA-2075713-A1 (CA)
Title: Ethylene/.alpha.-olefin/diene rubber composition and use of the same
Inventor: NAKAHAMA HIDENARI
IPC: C08L23/16
Filed: 1992-04-06
Abstract: ABSTRACT   The ethylene/.alpha.-olefin/diene rubber composition of the present invention is a specific ethylene/.alpha.-olefin/diene rubber composition comprising a high-molecular ethylene/.alpha.-olefin/diene copolymer rubber (A) having a specific molecular weight distribution, a specific intrinsic viscosity [?] and a specific iodine value, and a low-molecular liquid ethylene/.alpha.-olefin copolymer (B) having a specific intrinsic viscosity [?].  This ethylene/.alpha.-olefin/diene rubber composition of the invention is excellent in both the processability (flowability) and the shape retention properties in the vulcanization molding process, and the rubber composition can provide a vulcanized rubber molded product which is excellent in surface smoothness, mechanical strength, low-compression permanent strain properties, resistance to abrasion and resistance to dynamic fatigue.
Patent CA-2076298-A1 (CA)
Inventor: VIDETZKY RUSSELL J
IPC: A45D8/02
Filed: 1992-08-19
Abstract: A hair retaining device comprises at least one circular helical coil and a retaining means for co-action with the coil. Pockets are defined between the coil and the retaining means. In use the device is screwed into a user's hair and thehair strands are captively retained in the pockets. The retaining means preferably comprises another virtually identical coil joined to the first coil at one common end. The coils are wound on the same hand and are coaxial with each other to form thepockets therebetween. The other ends of the two coils are free and spaced apart.
Patent CA-2076766-A1 (CA)
Title: One piece integral flexible drive shaft
Inventor: MILLER GREGORY P
IPC: F16C1/14
Filed: 1992-08-25
Abstract: ABSTRACT OF THE DISCLOSURE         A one piece molded flexible drive shaft assembly of a hardened moldable material has an elongated flexible drive shaft core having a shaft drive input end, a shaft drive output end and integrally molded therewith at each end a coupling member of a hardened moldable material to connect the input end and the output end to a drive input and a drive output respectively.
Patent CA-2077796-A1 (CA)
Title: Low-lead zinc alloy powders for zero-mercury alkaline batteries
Inventor: HUOT JEAN-YVES
IPC: C22C18/00
Filed: 1992-09-09
Abstract: Abstract of the Disclosure A mercury-free zinc alloy powder having a low gassing rate in the presence of iron up to 30 ppm, and consisting of 0.001 to 0.1 wt % lead, 0.01 to 0.1 wt % bismuth, 0.01 to 0.1 wt % indium and 0.01 wt % to 0.1  wt  %  Al,  the  balance  being  Zn  and  unavoidable impurities.
Patent CA-2078024-A1 (CA)
Inventor: MAROIST JULES
IPC: A62C31/00
Filed: 1992-09-11
Abstract: A fire insulated partition including inner and   outer   walls   to   define   an   inner   space therebetween, water pipes disposed in the inner space and having a plurality of water outlets distributed throughout the inner space to deliver water therein, a water inlet outside the partition and connected to the water pipes to introduce water therein, the water inlet also connected to a source of water, a valve to initiate water circulation in the pipes and into the inner space upon activation by a detector,   and a drain  to  continuously drain  water  from the  inner space after the latter has been filled therewith.   A detector provided separate from the valve enables to open the valve in case a fire erupts in the vicinity of the partition.   There are blade propellers at the water   outlets   to   distribute   entering   water substantially against the entire interior surface of the inner and outer walls, and a motor to operate the blade propellers when the  detector senses  a fire. Application for example to the design of a safe, a room or the like.