baber/WOPTO huggingface dataset:
Patent CA-2066967-A1 (CA)
Inventor: WILSCHEK KENNETH E
IPC: E21B19/16
Filed: 1992-04-21
Abstract: DIAMOND DRILL CHUCK JAW CARRIER AND ASSEMBLY     Abstract of the Disclosure This invention relates to diamond drills drive apparatus and in particular to an improved diamond drill chuck jaw carrier and related assembly.  The apparatus comprises a hydraulically operated vane motor concentrically mounted about the axis of rotation of a drill rod string for rotating two independently driven chuck jaw carrier assemblies about the axis. Each chuck jaw carrier assembly receives the rod string within a central aperture and comprises floating chuck jaw wheel assemblies and flying wedge assemblies. The flying wedge assemblies slidably force the chuck jaw wheel assemblies into removable engagement with the drill pipe.  The chuck jaw wheel assemblies further comprise hydraulically operated vane motors driving tiers of chuck jaw wheels. The chuck jaw wheels have toothed surfaces for fripping engagement of the drill pipe.   Rotation of the carrier  assemblies  drives  the  drill  string;  independent rotation of the upper and lower carrier assemblies permits coupling  or  decoupling  of  adjoining  drill  rod  sections.          Rotation of the chuck jaw wheels moves the rod string up or down relative to the drive apparatus.
Patent CA-2066978-A1 (CA)
Title: Fabric, molded, or coated articles exhibiting color change when exposed to ultraviolet light
Inventor: KIM HYUN J
IPC: A41D1/00
Filed: 1992-04-24
Abstract: ABSTRACT OF THE DISCLOSURE      A fabric, or article made from fabric, woven from fine thread strands made of,  at least in part,  photochromic compounds which change color when exposed to a source of ultraviolet light.  The photochromic thread strand may be interwoven with a second thread  strand devoid of  any photochromic compound.     The fabric thus produced can exhibit patterns of areas containing photochromic compound threads and other areas containing threads (not containing photochromic compounds) such as cotton, polyester, nylon threads and the like.  The invention requires the forming of fine gauge thread which is thinner than heretofore proposed for purposes of embroidering and the like.   In another aspect of the invention, the article is a fashion accessory or item used in forming a fashion accessory made of, at least in part, a photochromic compound which changes color when exposed to a source of ultraviolet light.  The fashion accessory thus produced can exhibit a color change over the entire extent of its body or only in regions containing a photochromic compound, with other areas not containing photochromic compounds and thus not changing color.  The invention concerns a molded plastic article or the coating of solid or flexible articles containing the photochormic compound.
Patent CA-2070073-A1 (CA)
Title: Toy vehicle having interchangeable nested wheels
Inventor: CRAIN PHILIP W
IPC: A63H17/26
Filed: 1992-05-29
Abstract: ABSTRACT OF THE DISCLOSURE       A toy vehicle includes a plurality of supporting primary wheels rotatably secured to the vehicle such that the vehicle may be rolled upon any convenient play surface. A plurality of interchangeable secondary wheels are each fabricated having support hubs which define inwardly facing recesses sized to receive the primary wheels in a slight interference fit attachment. A support plate within each of the hubs of the secondary wheels provides a locating surface which permits enlarged diameter secondary wheels to be repeatedly positionable upon the primary wheels without introducing clearance problems with the remaining portions of the toy vehicle. A track unit simulating an endless track is securable to the toy vehicle in one of the alternate embodiments shown.
Patent CA-2072325-A1 (CA)
Title: Process for the preparation of polymers of carbon monoxide and olefinically unsaturated compounds
Inventor: KEIJSPER JOHANNES J
IPC: C08G67/02
Filed: 1992-06-25
Abstract: A B S T R A C T     PROCESS FOR THE PREPARATION OF POLYMERS OF CARBON MONOXIDE         AND OLEFINICALLY UNSATURATED COMPOUNDS       Process for the preparation of polymers, wherein linear alternating polymers of carbon monoxide with one or more olefinically unsaturated compounds are prepared by contacting the monomers at elevated temperature and pressure with a catalyst containing a Group VIII metal, the polymer preparation being carried out as a gas phase polymerization, and water being present at the start of the polymerization.
Patent CA-2074124-A1 (CA)
Inventor: MATSUMOTO TAKAYUKI
IPC: H04W52/04
Filed: 1992-07-17
Abstract: In a feedback loop, a modulation carrier signal is amplified or attenuated by a variable gain amplifier (2). A part of a transmission signal amplified by a power amplifier (3) is extracted by a monitor circuit (4), and is detected by an envelope detector (6). This transmission envelope signal and a distortion-free standard envelope signal produced from a standard envelope generator (7) are compared in an error detector (8). An error signal obtained by amplifying the error of the two signals and a DC voltage are added in an adder (9). A gain control terminal (11) of the variable gain amplifier (2) is controlled by using this adder output signal as the control signal. The envelope detector (6) is capable of varying the attenuation quantity of the variable high frequency attenuator (61) and the load resistance value of the variable load circuit (63). Therefore, the dynamic range of the transmission monitor circuit monitor output corresponding to the output voltage of the envelope detector in a predetermined range can be expanded.
Patent CA-2076544-A1 (CA)
Inventor: WELLS ANDREW J
IPC: B26D5/12
Filed: 1991-03-25
Abstract: A   hand-held    fluid    power-operated    shears characterized by a body including a pistol grip handle portion,  a  blade-receiving  recess  and  a  cylindrical cavity with a removable cover over the blade-receiving recess.  One of a variety of different size and design pairs of interchangeable shear blades may be installed in the blade-receiving recess.  The blades are pivotally connected  and  each  has  a  forward  cutting  section projecting  forwardly of  the  housing  and  a  rearward extension,  the extensions being removably received in the blade-receiving recess to hold one blade fixed while permitting relative movement of the other.  One end of a piston  rod  is  fixed  to  a  piston  provided  in  the cylindrical cavity for reciprocal movement therein.  The other end of the piston rod is  in  direct detachable engagement with the rearward end of the extension of the relatively movable shear blade.  Fluid flow passages are provided within the body, being adapted for connection to a source of fluid under pressure and in communication with the cylindrical cavity on opposite sides of the piston for introduction of fluid thereto and exhaust fluid  therefrom.     Valve  means  are  provided  for controlling flow of fluid through  the shears.   Power trigger means which are operable from the pistol grip handle are provided to actuate the control valve means and safety trigger means are provided operable from the pistol grip handle to prevent accidental operation of the power trigger.
Patent CA-2077936-A1 (CA)
Title: Process for the preparation of middle distillates
Inventor: VAN BALLEGOY CAROLUS M
IPC: C10G47/14
Filed: 1992-09-10
Abstract: Middle distillates are prepared from a hydrocarbon feed obtained by a Fischer-Tropsch synthesis and comprising a fraction having a boiling point above the boiling point range of the middle distillates, by a process which comprises contacting the said hydrocarbon feed at elevated temperature and pressure in the presence of hydrogen with a catalyst comprising platinum supported on a silica-alumina carrier prepared from an amorphous silica-alumina starting material having a pore volume of at least 1.0 ml/g.
Patent CA-2079148-A1 (CA)
Title: Lathe for generating ophthalmic products from blanks, and a method of operating the lathe
Inventor: BRENNAN WILLIAM D
IPC: B23Q1/00
Filed: 1992-09-25
Abstract: A lathe for use in the generation of ophthalmic products from blanks comprises a mechanism for rotating the blank about an axis of rotation. A cutter tool imparts a desired surface configuration onto the rotating blank.      A first moving mechanism moves the cutter tool in a first direction oriented parallel to the axis of rotation of the blank. A second moving mechanism moves the cutter tool in a second direction oriented transverse to the first axis.      A digital electronic system controls the angular displacement of the blank with respect to a reference plane containing the blank, and controls the movements of the cutter tool in the first and second directions. The movements of the cutter tool in the first and second directions, and the angular displacement of the blank about the axis of rotation are all controlled independently of one another by the digital electronic system.
Patent CA-2079352-A1 (CA)
Inventor: ASADA SHIGEKI
IPC: G06T5/00
Filed: 1992-09-24
Abstract: A personal computer generates first gray level signals each dot of which is represented by N bits (where N is an integer larger than or equal to 2) representing 2N (the Nth. power of 2) gray levels. The first gray level signal is supplied to a CRT display, each dot of which displays 2N (the Nth. power of 2) gray levels. Now, the CRT is replaced by an LCD, each dot of which displays 2M  (the Mth. power of 2) gray levels. An algorithm converts the first gray level signal of N bits representing 2N gray levels to  second gray level signals representing 2M gray levels. The second gray level signals  are  applied  to the  LCD.  The  invention  solves  a problem raised when an  algorithm is used to generate  an image for LCDs and that image is expanded in a vertical direction.
Patent CA-2080233-A1 (CA)
Title: Hybrid calcitonin
Inventor: MURAYAMA EIGORO
IPC: A61K38/00
Filed: 1991-04-08
Abstract: HYBRID CALCITONIN         ABSTRACT OF THE DISCLOSURE      The improved hybrid calcitonin consists of a peptide segment in human calcitonin and a peptide segment in calcitonin derived from animals other than humans, such as eel, salmon and chicken.  Each of the human or human analog calcitonins and the calcitonins derived from animals other than humans may be either native calcitonin or an analog thereof.  The hybrid calcitonin has the outstanding advantage that it exhibits biological activities as strong as eel, salmon and chicken calcitonin while causing no side effects including nausea, disorders in the functions of the digestive tract or antigenicity.
Patent CA-2083049-A1 (CA)
Inventor: HUNDEROL KELD OTTING
IPC: F16H1/20
Filed: 1991-05-21
Abstract: In order to achieve a compact spindle drive which is also lightweight and consisting of few components, and where the drive motor (8) is mounted in a stationary manner in relation to the spindle drive, the spindle drive according to the invention is configured with two sets of bevel gears comprising a first larger pair of gears (11, 13) and a second smaller pair of gears (12, 14). The spindles (15, 17) can hereby be mounted in star formation in the housing and alternately enter into engagement with the first gear (11) and the second gear (12), and thus alternately rotate the one way and the other way. At the same time, all of the spindles (15, 17) are suspended in the same plane, whereby a very uniform machining operation is achieved. Finally, the housing can be provided with a turning motor (21), which via a pinion (2, 19) can revolve the housing (1) at the same time that the spindles rotate.
Patent CA-2084769-A1 (CA)
Title: Pgf 1-alcohols and their use as ocular hypotensives
Inventor: WOODWARD DAVID F
IPC: A61P9/12
Filed: 1991-06-11
Abstract: The invention relates to the use of alcohol derivatives of F-type prostaglandins as ocular hypotensives. The PGF derivatives used in accordance with the invention are encompassed by the structural formula (I) wherein wavy line attachments indicate either the alpha (.alpha.) or beta (.beta.) configuration; hatched lines indicate .alpha. configuration, solid triangles are used to indicate .beta.  configuration, dashed bonds represent a double bond, the 5,6-double bond being in cis-configuration, or a single bond; R is hydrogen or a -(CO)R4 group; R1, R2, and R3 independently are hydroxyl, or -O(CO)R5 groups, wherein R4 and R5 independently stand for saturated or unsaturated acyclic hydrocarbon having from 1 to 20 carbon atoms, or -(CH2)nR6 where n is 0-10 and R6 is an aliphatic, aromatic or heteroaromatic ring, R7 and R8 independently are hydrogen or alkyl of one to 6 carbon atoms or pharmaceutically acceptable salts thereof.
Patent CA-2086621-A1 (CA)
Inventor: OFOSU-ASANTE KOFI
IPC: C11D3/33
Filed: 1991-07-03
Abstract: A process for producing high active detergent particles including reacting the acid form of anionic surfactant with an alkali metal hydroxide solution in a continuous neutralization system, and adding to the system an .alpha.-aminodicarboxylic acid selected from the group consisting of glutamic acid, aspartic acid, aminomalonic acid, aminoadipic acid, and 2-amino-2-methyl-pentane-dioic acid, or their salts.  Mono- and disodium glutamate are preferred.
Patent CA-2086753-A1 (CA)
Title: Apparatus for controlled delivery of liquids
Inventor: HJERTMAN BIRGER
IPC: A61M5/145
Filed: 1991-07-25
Abstract: An apparatus for controlled delivery of a liquid consists of a delivery unit which comprises a liquid container (3) having at least one movable wall (12) and a liquid outlet which is provided with a flow restriction, and a power unit which comprises a second con-tainer (21) which also has at least one movable wall (29) and wherein a vacuum may be established, and a mechanical coupling (31) between the movable wall (12) of the liquid container (3) and the movable wall (29) of the second container (21). The delivery unit and the power unit are connected together coaxially when the apparatus is prepared for delivery, and in this connecting together, the movable wall (29) of the second container is displaced by means of the mechanical coupling (31) such that the vacuum is established. The ambient atmospheric pressure then acts against this vacuum, and this pressure is transmitted by said mechanical coupling (31), which is directly acting on the movable wall (12) of the liqud container (3) such that the liquid is forced out through the outlet (4) and the restriction therein.
Patent CA-2087512-A1 (CA)
Title: Method and apparatus for the thermoforming and stacking of hollow objects incorporating a base formed from thermoplastics sheet material
Inventor: PADOVANI PIETRO DR
IPC: B29C51/08
Filed: 1993-01-18
Abstract: Method for the thermoforming of hollow objects having a base, which comprises thermoforming the objects from a sheet of thermoplastics material in a half of a double female mould that can be moved between a moulding area against a male die and a discharge area alternately to one side or the other of the forming area, transferring the objects from the discharge area into a plurality of receiving formers moving sequentially stepwise along a track, performing one or more processing or handling operations while the formers are stationary and sequential movement of the formers to a stacking station.
Patent CA-2088361-A1 (CA)
Title: Power and propulsion system utilizing fluid
Inventor: KIM JAE H
IPC: F03G7/10
Filed: 1992-06-01
Abstract: A system for generating power, buoyancy or propulsion force comprising power generating means and propulsive means. The power obtained by utilizing the compressibility of a fluid passing through a fluid passage is utilized for buoyancy or propulsive system without being influenced by the outside of the bodies of an airplane or ship. Upon being operated by outside electric power, the power generating means continuously produces electric power even when the supply of the outside power is stopped. That is, the self-generating power may be utilized for obtaining buoyancy or propulsion force. The self-operating power generating means may operate continuously by sucking heat from an outside fluid. The electric energy produces a force exerting in one direction within the airtight room of the propulsion means. With this construction, an airplane, vehicle or ship may be safely operated even in an abnormal phenomenon. Furthermore, heat exchanger means may be served as a cooling system.
Patent CA-2089030-A1 (CA)
Title: Spice rack
Inventor: PRIMEAU MARIO
IPC: A47B88/48
Filed: 1993-02-08
Abstract: ABSTRACT OF THE DISCLOSURE        A spice rack is provided for mounting under a cupboard.   It includes a spice container holder and a  housing  therefore  to  be  fixed  underneath  the cupboard.  The spice container holder can be pivoted on the housing between an opened vertical position and  a  closed  horizontal  position.    Also  it  is capable of sliding relative to the housing between a forward position at the front of the housing and a rearward position at the rear of said housing.   The housing  may  be  associated  with  a  support  which enables it to be spaced from the underface of the cupboard.
Patent CA-2089784-A1 (CA)
Inventor: ANDERSON WILLIAM J
IPC: G06F3/0488
Filed: 1993-02-18
Abstract: An apparatus and method in a tablet computer for disambiguating a handwriting input stream generated by a stylus-based user interface.  A tablet application program interface (TAPI) of the present invention receives stroke data generated by a stroke made by a user on a digitizing tablet. The TAPI inserts the stroke data into a database. If the stroke is an editing gesture, the TAPI routes the stroke to a gesture recognizer which identifies an editing dialog. The TAPI then executes the dialog to perform operations on the database. If the application program is expecting text input, the TAPI continues to receive stroke data until it detects a closure event.  The TAPI then forms a stroke group entry in the database by grouping all non-gesture stroke data received since the last closure event. The TAPI routes the stroke group data to a character recognizer, which returns candidate characters. The TAPI inserts the candidate characters into the stroke group entry. The TAPI notifies the application program each time it updates the database.
Patent CA-2090620-A1 (CA)
Inventor: BLAUSTEIN MORDECAI P
IPC: C07K16/00
Filed: 1991-08-21
Abstract: Methods for diagnosing pre-hypertension, hypertension, congestive cardiomyopathy, renal failure, salt-sensitivity and adenomas and endocrine cell hyperplasias are disclosed. Also disclosed are methods for monitoring hypertension therapy, congestive cardiomyopathy therapy, renal failure therapy and adenoma and endocrine cell hyperplasia therapy. These methods involve using an antibody having binding specificity to ouabain to immunologically measure the level of human ouabain in body fluid or tissue of a subject.  Additionally, methods for treating a hypertensive subject by inducing passive or active immunity to human ouabain in the subject are disclosed, along with an antibody having binding specificity for ouabain.
Patent CA-2091696-A1 (CA)
Title: Stationary turbine blade having diaphragm construction
Inventor: FERLEGER JUREK
IPC: F01D5/00
Filed: 1993-03-15
Abstract: 56,937 ABSTRACT OF THE DISCLOSURE         A steam turbine blade has inner and outer rings which are integrally formed with an airfoil.  A plurality of such blades are joined by welding the inner and outer rings to form an annular nozzle assembly.  The diaphragm structure of the inventive blades offers improved performance over blades of similar length in that performance is improved due to smoother transition between the airfoil and the inner and outer rings as compared to conventional segmental assemblies in which a forged airfoil is welded to inner and outer rings.  Furthermore, the present invention allows a thinner trailing edge and reduced manufacturing tolerances than is found  in prior  art  segmental  assemblies  having  forged airfoils with thick trailing edges and relatively large tolerance  requirements.   The particular  design  of  the inventive blade also controls steam separation by control of the rate of change of convergence and turning angle.  Steam velocity increases substantially continuously over the major extent of the suction surface of the blade to avoid flow separation.
Patent CA-2094033-A1 (CA)
Title: Welding helmet with controllable protective lens
Inventor: BEAN RICHARD D
IPC: A61F9/06
Filed: 1992-06-09
Abstract: A welding helmet (10) includes a breath activated protective lens assembly (17, 90) which can replace a standard lens assembly of a conventional helmet. A new lens structure (18, 91) with a pneumatic device (20, 110) operates the protective lens (40, 100) within the lens structure (18, 91) and replaces the standard lens.  The lens structure includes a slidably mounted frame (42, 102) with the protective lens (40, 100) mounted within the frame (42, 102) and encompassed by safety lenses and placed together in a package. A pneumatic device (20, 110) operated by the breath of the welder pushes the protective lens (40, 100) to cover an opening (88, 97) in the housing (34, 92) of the lens structure (18, 91) to protect the eyes of the welder during welding. Sucking on the mouthpiece (24, 122) or gravity allows the frame (42, 102) to drop and thereby leaves a clear view for the welder to see the fixture that is to be welded. The breath activated lens assembly (17, 90) can be added as a kit to a standard conventional welding helmet.
Patent CA-2096315-A1 (CA)
Inventor: WARD RICHARD L
IPC: A61K39/15
Filed: 1991-11-04
Abstract: Novel isolated human rotaviruses are disclosed. The novel human rotaviruses in accordance with the instant invention have derived their genomic segments from parental strains of different genogroups and/or serotypes. The novel rotaviruses of the present invention are designated as HRV 248, HRV 456, HRV 89-12C2, HRV 408 and CJN. The human rotavirus designated as HRV 89-12C2, HRV 408, HRV 248 and CJN have been deposited with the American Type Culture Collection (ATCC), 12301 Parklawn Drive, Rockville, MD 20852, and have been assigned the following ATCC accession nos. VR 2272, VR 2273, VR 2274 and VR 2275, respectively. Also disclosed are novel vaccines formulated with the human rotaviruses of the instant invention, and methods of vaccinating humans against human rotaviruses of multiple serotypes with such vaccines. A novel method for boosting the titers of neutralizing antibodies and expanding the memory of the cells generated which express the neutralizing antibody formed following primary vaccination for preventing rotavirus illnesses induced by human rotaviruses of all serotypes compris-ing revaccinating the primed subjects with a heterotypic non-human animal rotavirus vaccine, such as with a WC3 bovine vac-cine, is also disclosed.
Patent CA-2096460-A1 (CA)
Title: Dual action inhibitors
Inventor: KARANEWSKY DONALD S
IPC: A61K31/54
Filed: 1993-05-18
Abstract: Compounds of the formula (see formula I) are disclosed as possessing inhibotory activity against angiotensin converting enzyme (ACE) and neutral endopeptidase (NEP) and thus being useful as cardiovascular agents. Processes for preparing these compounds are also disclosed.
Patent CA-2097354-A1 (CA)
Title: Battery feed circuit
Inventor: SCHORR IAN A
IPC: H04M19/00
Filed: 1993-05-31
Abstract: BATTERY FEED CIRCUIT Abstract A battery feed circuit where only a simple resistive feed is required to provide DC current to the load, e.g., telephone line and station set, because the part of the circuit which transmits and receives AC signals has an AC impedance that is negative. The circuit meets specified requirements for an AC termination impedance that is larger than the DC termination impedance because the negative AC impedance is connected in parallel with the resistive feed. The circuit achieves a substantial cost reduction with respect to prior art circuits because the DC feed part of the circuit has only passive components and because the telephone line is directly connected to only passive components in the AC part of the circuit, thereby reducing the cost of protection circuitry required.