baber/WOPTO huggingface dataset:
Patent CA-1168128-A (CA)
Inventor: ROETTGEN LESLIE A
IPC: F16K17/04
Filed: 1981-12-08
Granted: 1984-05-29
Abstract: Bypass Valve and Alarm Assembly Abstract A "snap action" early warning bypass valve assembly (2), responsive to fluid pressure differentials and/or low pressure, functions as both an electrical switch to provide an indication of low pressure or an impending fluid bypass and as a mechanical valve to actually implement the fluid bypass.  The valve assembly includes a sealing piston (24, 124) supported by a retaining surface (18,106) having a central bore (22,110) formed therein.  The sealing piston (24, 124) contains a bypass aperture (36) and is shaped to present a differential sealing area (39) to fluid circulating within the central bore (22,110).  A spring-biased bypass disc (42.134) covers the bypass aperture (36) to present a central sealing area (45) to fluid within the central bore (22,110).  A first pressure differential acting simultaneously across the central (45) and differential (39) sealing areas forces piston (24) into contact with an electrical terminal pin (48,92,126), thus energizing an alarm circuit (48-64,90). A second, greater pressure differential acting across the central sealing area (45) alone pushes the bypass disc (42, 134) away from the bypass aperture (36) to complete the bypass operation.  A low pressure sensing means (140) including a low pressure piston (142) biased to a no alarm position by spring (128) and to an alarm position by spring (150) is responsive to fluid pressure in a bypass conduit (132) below a predetermined level to energize the same alarm circuit (48-64, 90).
Patent CA-1157440-A (CA)
Inventor: ROMANAUSKAS WILLIAM A
IPC: B04B5/04
Filed: 1981-12-22
Granted: 1983-11-22
Abstract: ABSTRACT OF THE INVENTION           This invention relates to a centrifuge rotor of the swinging bucket type characterized in that the trunnion-receiving bores provided into the arms at the radial outward end thereof are arranged such that the axis of the bore provided into one surface of the arm lies above a horizontal place through the arm and the axis of the bore provided on the other surface the arm lies below the arm and that the bores provided in confronting surfaces of adjacent arms lie on the same side of the horizontal plane.
Patent CA-1163797-A (CA)
Inventor: PEARCE THOMAS H
IPC: G01B11/06
Filed: 1982-01-14
Granted: 1984-03-20
Abstract: ABSTRACT          A multiple frequency laser interference microscope in which a source of coherent laser light containing at least two frequencies of light is used in conjunction with a trans-mitted light polarizing microscope so as to provide an inter-ference microscope.  Using a wide fringe mode of operation refractive index becomes directly visible as shades and hues of different colours, and discontinuities and gradients of less than 0.001 may be detected.  Using a narrow fringe mode of operation, measurement of fringe shift and thickness permit exact and rapid calculation of refractive index to 0.00n at least.
Patent CA-1188790-A (CA)
Inventor: PFOST R FRED
IPC: G11B23/42
Filed: 1982-01-25
Granted: 1985-06-11
Abstract: Abstract This invention relates to a tape reading system wherein the tape in a tape cassette has color marks on the tape to be read by an optical system, part of which is in the cassette and another part of which is in the tape drive. The part in the cassette consists of an optical element having mutually isolated light transmission paths.  The paths carry light reflected from or transmitted through different portions of the width of the magnetic tape.  The light is directed to optical sensors which are part of the tape drive.  A lamp, also part of the drive, illuminates the tape so that light shining on the tape will con-trast with the color marks.  Changes in contrast due to the color marks, trans-mitted through the optical element, are detected by optical sensors and converted to electrically readable signals.  A feedback circuit connected to the lamp and to the sensors provides electrical feedback to the lamp.  The level of illumination detected by the optical sensors is kept constant relative to slow background contrast changes, although a low pass filter prevents the feedback circuit from responding to light signals representing the color marks.
Patent CA-1175455-A (CA)
Inventor: WENZ WILLIAM
IPC: C03B9/447
Filed: 1982-03-05
Granted: 1984-10-02
Abstract: TONG ARM ASSEMBLY     Abstract of the Disclosure A tong arm assembly for carrying and moving a tong head arcuately between two horizontally spaced positions includes a housing having the tong head pivotally connected to one end; the other end of the housing being rotatably mounted to a fixed arm stud.  A pair of levers located within the housing have their first ends pivotally connected to an extension of the stud and their second ends pivotally connected to the tong head.  As the housing is arcuately moved, the levers maintain the tong head steady and in its proper orientation.
Patent CA-1178617-A (CA)
Inventor: BRAKE LOREN D
IPC: C07B61/00
Filed: 1982-03-23
Granted: 1984-11-27
Abstract: TITLE                 Improved Catalyst for Methylamines Production ABSTRACT OF THE DISCLOSURE In the catalytic preparation of methylamines from methanol or dimethyl ether and ammonia using a silica-alumina catalyst, catalyst coking and byproduct formation are reduced and reaction speed and catalyst thermal stability are enhanced when a catalyst con-taining a high level of alumina is used.
Patent CA-1193078-A (CA)
Inventor: ANDERSON WILLIAM B
IPC: F16G3/06
Filed: 1982-04-20
Granted: 1985-09-10
Abstract: ABSTRACT OF THE INVENTION The present invention provides a splice for high tension belts in which the ends of the belt are curved at about right angles to the belt.  Plates are placed on the outside of the two belt ends, spacer bushings are placed between the plates and through apertures in the belt ends, bolts are placed through holes in the two plates and through the spacer bushings, and the bolts are tightened, causing the plates to press against the spacer bushings.  The bolts are pretensioned by tightening them to a predetermined tension which is higher than the tension experienced during operation.
Patent CA-1180773-A (CA)
Inventor: MAKABE TAKAYOSHI
IPC: H03F1/48
Filed: 1982-04-26
Granted: 1985-01-08
Abstract: ABSTRACT A differential amplifier includes a differential amplifier portion having a first NMOS FET having a gate electrode connected to a first input terminal, a drain electrode providing a first output of said differential amplifier portion and a source electrode.  Also included is a second NMOS FET having a gate electrode connected to a second input terminal, a drain electrode connected to an output terminal for providing a second output of the differential amplifier portion and a source electrode connected to the source electrode of the first NMOS FET.  A first load is connected to the drain electrode of the first NMOS FET and a second load is connected to the drain electrode of the second NMOS FET.  The differential amplifier includes a differential to single-ended converter portion including a third NMOS FET having drain and gate electrodes for receiving the first output and a source electrode which is grounded.  Also included in the differential to single-ended converter portion is a fourth NMOS FET having a drain electrode for receiving the second output, a gate electrode connected to the gate electrode of the third NMOS FET and a source electrode which is grounded.  The first and second outputs are converted into one output to be taken out from the output terminal.  The device operates over a significantly broader frequency band than similar prior art devices.
Patent CA-1204132-A (CA)
Inventor: BISIACH LUCIANO
IPC: B25J9/10
Filed: 1982-06-03
Granted: 1986-05-06
Abstract: ABSTRACT OF THE DISCLOSURE    An industrial robot having several axes of movement and comprising a base mounted for linear or pivotal move-ment, a pair of angularly movable parallelogram leverages and a toolholder head movable by the leverages and supporting a tool such as a welding torch.  The toolholder head has two degrees of freedom of pivotal movement.  The tool supported thereby is centered in a fixed point of focus irrespective of the position of the toolholder head and the tool can be adjusted without changing this point of focus merely by adjusting the toolholder head without adjusting other axes of movement of the robot.
Patent CA-1184784-A (CA)
Inventor: STEWART THOMAS L
IPC: G01N27/22
Filed: 1982-07-12
Granted: 1985-04-02
Abstract: A B S T R A C T                 BASIC SEDIMENT AND WATER MEASUREMENT         IN CRUDE OIL STREAMS      Seals separating wet and dry fluid chambers are flushed with the dry fluid to prevent contamination of fluid in the dry fluid chamber by seal leakage.
Patent CA-1187789-A (CA)
Inventor: CHIA HAN-LIE
IPC: A61K41/00
Filed: 1982-08-27
Granted: 1985-05-28
Abstract: Abstract A colloidal solution of human serum albumin is prepared by mixing an aqueous solution of the latter with a non-ionic surface-active agent and an acid solution of a tin(II) salt, adjusting the pH to 3.0 to 8.0 and heating at a constant temperature between 45 and 100°C until com-plete hydrolysis of the tin(II) salt and denaturation of the albumin have taken place;  the colloidal solution can also be lyophillzed.     By treating the solution or the lyophilizate with a 99m Tc-pertechnetate solution, a colloidal preparation is obtained for scintigraphy of the reticuloendothelial system or the lymphatic system. Alone by suitable pH adjustment, the process makes it possible selectively to obtain colloids with a particle size of, for example, 3.0-0.2 or 0.2-0.03 or below 0.03 µm.
Patent CA-1223054-A (CA)
Inventor: CHANG LEEI
IPC: H05B33/22
Filed: 1982-09-03
Granted: 1987-06-16
Abstract: ELECTROLUMINESCENT DISPLAY DEVICES            ABSTRACT OF THE DISCLOSURE        A thin-film electroluminescent display device com-prises a glass substrate, a transparent conductor, a phosphor layer between two insulating layers, an opaque back conductor, and a black layer of a material that interferes with the incoming light, thus eliminating the problem of reflection when the display is viewed under conditions of high ambient illumination, e.g. direct sunlight.
Patent CA-1217766-A (CA)
Inventor: BALOGH KAROLY
IPC: A01N47/22
Filed: 1982-09-28
Granted: 1987-02-10
Abstract: A b s t r a c t The invention relates to a herbicide composition as well as to the preparation of carboxylic-acid-amido-thiol-carbamate derivatives forming the active agent of the compo-sition. The carboxylic acid-amido-thiolcarbamate derivatives are illustrated by general formula (I)   wherein R1 and, R2 can be identical or different and, can stand for hydrogen, a C1-10 straight or branched alkyl group, a C2-10 straight or branched, alkenyl group, a C5-6 cycloalkyl or phenyl group, a phenyl radical substituted, by a C1-3 alkyl group, a C1-3 dialkyl group or halogen, but R1 and R2 can form together a hexamethylene group, too;          R2      can stand, for a C1-3 straight or branched alkyl radical;       R4      can represent a C1-10 straight or branched alkyl group, a C2-10 straight or branched alkenyl group, furthermore a phenyl or benzyl radical.
Patent CA-1184763-A (CA)
Inventor: NIU JOSEPH H Y
IPC: C10L1/32
Filed: 1982-10-14
Granted: 1985-04-02
Abstract: COAL-OIL SLURRIES CONTAINING A SURFACTANT        Abstract of the Disclosure Unwanted settling in a composition comprising a suspension of fine particles of coal in fuel oil is elimi-nated or substantially reduced by adding an effective amount of a polyoxypropylene-polyoxyethylene copolymer which corresponds to the formula:                             in which the values of X1, X2, X3 and X4 may be the same or different, Y1, Y2, Y3 and Y4 may be the same or different, Y1+Y2+Y3+Y4  give a total oxyethylene content of the molecule of from about 10 to 80 weight percent and X1, X2, X3 and X4  have values such that the total molecular weight of the molecule is from about 1500 to 30,000.
Patent CA-1202824-A (CA)
Inventor: DEAN WALTER C II
IPC: B61F5/30
Filed: 1982-11-30
Granted: 1986-04-08
Abstract: Abstract of the Disclosure A low rate soft primary suspension system for a railway truck includes a pair of longitudinally disposed assemblies on opposite sides of a journal bearing for carrying a wheel-axle unit.  Each of said assemblies includes a plurality of laminated rubber strips separated by relatively thin metal strips oriented parallel to the vertical axis of the journal bearing.  The layers of the laminated assembly form angles opening towards or away from the journal bearing somewhat in the shape of chevrons. The assemblies provide relatively high spring rates for lateral and longitudinal loads and low spring rates for vertical loads.
Patent CA-1193025-A (CA)
Inventor: WATANABE NOBUHIKO
IPC: G11B20/22
Filed: 1983-02-09
Granted: 1985-09-03
Abstract: ABSTRACT OF THE DISCLOSURE      A time base correcting apparatus is disclosed which is capable of correcting time base errors contained in a digital signal supplied thereto in the form of successive data blocks with each data block including plural data words.  Each data block includes therein at least plural data words and a block address circulating with a predetermined phase relation relative to a certain reference signal.  A memory is provided, having plural addressable storage locations, each adapted to store a respective data block.  A write-in address to identify the particular storage locations is generated according to data block addresses and read-out addresses.  The write-in address is varied by a lock phase mode signal indicative of a phase relation at which an incoming digital signal is locked to a reference signal so that notwithstanding the phase mode in which the digital signal is locked to the reference signal, the correction ability of the time base correcting apparatus can be prevented from being lowered.
Patent CA-1195864-A (CA)
Inventor: MOORES ROBERT G JR
IPC: B25B21/00
Filed: 1983-03-15
Granted: 1985-10-29
Abstract: ABSTRACT     A hammer-drill is adapted for drilling a hole in masonry and subsequently driving a threaded masonry fastener therein.  The hammer-drill has a driving output shaft nested concentrically within a driving output sleeve.  The shaft and sleeve both extend forwardly of the tool housing, and both are driven continuously by respective gearing in the tool.  The sleeve, however, is driven at a substantially lower rpm than the shaft and at a higher torque.  After the hole is drilled, a tubular member is releasably and drivingly coupled to the sleeve.  The tubular member encloses the masonry drill bit, which is continually rotated, and the drill bit need not be removed from the tool to seat the fastener.  The tubular member has a forward portion provided with a socket for the head of the masonry fastener.
Patent CA-1201325-A (CA)
Inventor: HIGASHI TOSHIHIKO
IPC: C12N9/96
Filed: 1983-03-31
Granted: 1986-03-04
Abstract: ABSTRACT           A method for increasing the milk coagulating activity of microbial rennet obtained from Mucor pusillus microorganisms, which comprises acylating the microbial rennet in an aqueous medium by contacting the microbial rennet with succinic anhydride at a temperature of about 0°C to about 40°C and a pH of about 4 to about 10 for a time sufficient to obtain the desired increase in milk coagulating activity; and improved microbial rennet having a low PA/MCA index and a high MCA index and obtained by the aforesaid method.
Patent CA-1218267-A (CA)
Inventor: WITSCHI HEINZ
IPC: B21D31/04
Filed: 1983-05-03
Granted: 1987-02-24
Abstract: ABSTRACT      Profiled forms made of expanded metal or sheet metal having a roughened or partially permeable sur-face are produced in a single continuous production operation. Hole-yielding locations for receiving re-inforcing bars are formed by punching intersecting cuts or zigzag lines in the margins of strips of the start-ing material, and serrations or undulations are formed in sections cut from the strips by passing the sections through correspondingly shaped pressure rollers. A rust guard is affixed or applied by immersion to one of the longitudinal edges of each section. Two profiled forms can be overlapped so that their serrations or un-dulations fit into one another, thus making it possible to adjust the height of the concrete form stepwise. Fluid concrete cannot penetrate through the holes around the reinforcing bars because the flaps of the hole-yielding locations close the holes at least partially. The profiled forms require no further treatment at the construction site.
Patent CA-1204420-A (CA)
Inventor: SVOBODA RUDOLF
IPC: A47B37/02
Filed: 1983-05-10
Granted: 1986-05-13
Abstract: ABSTRACT OF THE DISCLOSURE     A data-processor stand has a platform for the display screen which is mounted on a vertically adjustable upright from a base while the keyboard can be placed upon a second platform connected to the support formed at the underside of the first platform by a linkage whose link member can be vertically adjusted by a screw spindle.
Patent CA-1208030-A (CA)
Inventor: TAFT BUCKIE A
IPC: E04B5/29
Filed: 1983-06-01
Granted: 1986-07-22
Abstract: COMPOSITE STEEL AND CONCRETE       FLOOR CONSTRUCTION                         Abstract A steel primary framing member, or truss, and concrete floor structure in which the top chord of the truss, regard-less of cross-sectional configuration, is totally or at least partially embedded in the concrete to cause the concrete floor and steel truss to function together structurally as a composite system.  The upper chord of the truss acts as a continuous or substantially continuous shear connector thus enabling the top chord to perform a multi-purpose function.  Additionally, the top chord may be of any configuration and may be either a solid piece or contain perforations.
Patent CA-1229611-A (CA)
Inventor: ASSELIN ANDRE A
IPC: C07D221/18
Filed: 1983-06-09
Granted: 1987-11-24
Abstract: ABSTRACT OF THE DISCLOSURE   1,2,3,7,12,12a-Hexahydrobenzo[5,6] cyclohepta[1,2,3-de] isoquinoline deri-vatives, characterized by having two adjacent oxy substituents, at positions 4 and 5 or at positions 5 and 6, are disclosed. The derivatives are neuroleptic agents. Methods for the preparations and for the use of the derivatives also are disclosed.
Patent CA-1203672-A (CA)
Inventor: LIBOWITZ GEORGE G
IPC: C01B6/24
Filed: 1983-07-19
Granted: 1986-04-29
Abstract: ABSTRACT             ROOM TEMPERATURE REACTION OF VANADIUM-BASED ALLOYS WITH HYDROGEN    A method of producing a vanadium-based metal hydride which comprises reacting hydrogen gas at a tem-perature between about 0° and 100°C with a vanadium-based binary solid solution alloy having a body-centered cubic structure and having a formula V1-xMx, wherein M is a metal selected from the group consisting of mangan-ese, chromium, cobalt, iron, nickel and mixtures thereof and wherein x varies from at least about 2 atom percent up to the solubility limit of cobalt, iron and nickel and up to about 20 mol% of manganese and up to about 40 mol% of chromium in said solid solution alloy is disclosed.
Patent CA-1202744-A (CA)
Inventor: LIN I SIOUN
IPC: C08G18/38
Filed: 1983-08-08
Granted: 1986-04-01
Abstract: DIAMINE/DIOL CHAIN EXTENDER BLENDS FOR RIM PROCESS                              ABSTRACT             A chain extending agent for reaction injection molding ding (RIM) comprising a normally liquid blend of butanediol and a toluene diamine mono-substituted with an electron withdrawing group and having the formula   wherein X is vicinal to an amino radical and is selected from the group of halogen, CN, NO2, acyl, carboxylate and isomeric mixtures thereof, and wherein the butanediol and diamine are combined in a critical mcle ratio of from 4:1 to about 19:1. The above blend is particularly useful in the preparation of large moldings or polyurethane-polyurea elastomer by the RIM or RRIM (reinforced reaction injection molding) process wherein instant preformed blend is added to a mixture of polyol reactant and catalyst before polymerization in the mold with isocyanate to produce a urethane/urea polymer product of improved properties. Accordingly, the invention also concerns an enhanced RIM or RRIM process and improved product by the use of a mixture of the present chain extender blend and polyol reactant maintainable in the liquid state at ambient temperature.
Patent CA-1224292-A (CA)
Inventor: CHAPIN WILLIAM L W PALM AVENUE
IPC: G09F13/42
Filed: 1983-09-26
Granted: 1987-07-14
Abstract: METHOD AND APPARATUS FOR ANIMATING ILLUMINATED SIGNS AND DISPLAYS                       Abstract A method and apparatus for animating illuminated signs and displays comprises sequentially illuminating with at least one source of radiant energy (51) of a particular wavelength range at least two planar scenes (53), (54) or three-dimensional objects (101), (102) visibly responsive to radiant energy of the particular wavelength range used.          Means (55) are provided for shielding a non-selected planar scene or object from illumination during the time a selected planar scene or object is illuminated. In the preferred embodiment, invisible ultraviolet illumination is used to cause a plurality of scene-views to fluoresce visibly in a timed sequence which produces a visual sensation of apparent motion from one scene-view to another of an object depicted by the scene-views.  Subjective brightness of scene-views may be enhanced by modulating the illumination of a scene at a perceptibly low frequency.
Patent CA-1242426-A (CA)
Inventor: WILLIAMS PETER C
IPC: F16K5/06
Filed: 1983-10-03
Granted: 1988-09-27
Abstract: FIRE-SAFE BALL VALVE                 (Abstract of the Disclosure) An improved, soft-seated fire-safe ball valve is disclosed.  The ball valve includes a body having a central passageway, a ball member positioned in the passageway, and a pair of radially inwardly extending shoulders in the passageway disposed circumferentially thereof on opposite sides of the ball member.  The ball member includes a fluid flow opening therethrough and is mounted for selective rotation between valve open and closed positions to control fluid flow through the valve.          An improved seat assembly is provided comprising a rigid reinforcing ring, an elastic seat ring supported by the reinforcing ring and configured for fluid sealing engagement to the ball member, and a deformable, heat resistant secondary seat ring interposed between the elastic seat ring and an associated one of the pair of shoulders.  Also, a weir ring may be advantageously received in the seat ring.  Upon fire damage to the elastic seat ring, the secondary seat ring engages the ball member to seal the valve.  The weir ring inhibits extrusion of a substantial portion of the seat ring such that the seat assembly operates to maintain a fluid-tight seal upon partial destruction of the elastic seat ring.