baber/WOPTO huggingface dataset:
Patent CA-1141900-A (CA)
Inventor: KAJIMURA MUTSUHIKO
IPC: C08F8/14
Filed: 1980-05-06
Granted: 1983-02-22
Abstract: ABSTRACT OF THE DISCLOSURE     An expandable styrene-maleic anhydride copolymer particle comprising the reaction product of a styrene-maleic anhydride copolymer comprising from 2 to 25 weight percent of maleic anhydride and having an average degree of polymerization of from 500 to 4,000 with a hydroxy compound having from 2 to 4 active hydroxy groups and from 2 to 15 carbon atoms, wherein the mole ratio of the hydroxy compound is from 2.5 to 150 mole percent relative to the maleic anhydride and, wherein the reaction product is impregnated with a volatile blowing agent.  A bead molding process for preparing foams from these expandable particles is also disclosed.
Patent CA-1145276-A (CA)
Inventor: RONGLEY RAYMOND A
IPC: F16D7/02
Filed: 1980-05-30
Granted: 1983-04-26
Abstract: SLIP CLUTCH              ABSTRACT OF THE DISCLOSURE     A slip clutch of the friction type is described for interposition between a rotary shaft and a driven or driving element on the shaft, such as a gear, cam, pulley, crank or the like, the slip clutch including a split sleeve in engagement with the element or the shaft but retained against movement by a key carried in a keyway on the shaft or in the element, a split tolerance ring being interposed between the split retainer ring and the shaft or the element and retained against rotation with respect to each other and to the shaft or the element in the shaft by the key.  The gear, cam, pulley and the like is retained against longitudinal movement along the shaft in any desired manner such as by a shoulder on the shaft and a split retainer ring in a groove on the shaft or by a pair of spaced retainer rings in grooves on the shaft.
Patent CA-1167420-A (CA)
Inventor: HERBST WALTER B
IPC: B65D1/34
Filed: 1980-09-16
Granted: 1984-05-15
Abstract: INSULATED FOOD TRAY AND LID THEREFORE                ABSTRACT OF THE DISCLOSURE   An insulated food serving tray and lid, each of which includes a preformed foam insulator with laterally spaced dish cavities. Each foam insulator is permanently sealed between two preformed panels, one of which has compli-mentary dish cavities. The insulator is of a generally rigid polystyrene bead foam and has a construction fitting around the plural cavities. This construction provides at least a portion of the insulator which is spaced from the preformed panels to reduce internal pressure at peripheral seams joining the panels. Such gap allows the space between the two panels to absorb dimensional variations due to manufacturing tolerance, dimensional changes with temperature, etc. The presence of such gap can be verified by manually squeezing certain areas of the tray or lid after permanently sealing in the insulator.
Patent CA-1185397-A (CA)
Inventor: LEITNER WOLFGANG
IPC: C08G59/14
Filed: 1980-10-29
Granted: 1985-04-09
Abstract: ABSTRACT The invention relates to binders for the formulation of electrophoretic coating compositions.  The binders, which are water-dilutable upon partial or total neutralization with acids, are epoxy resin ester based, and are character-ized in that they are produced by n process in which the epoxy groups of a resin like compound with at least 2 1,2-epoxy groups per molecule and an epoxy equivalent of at least 160 are reacted completely at 60 - 75°C, in the presence of inert solvents, with a semi-ester of an aliphatic, cycloaliphatic or aromatic dicarboxylic acid and an N-2-hydroxyalkyl oxazolidine having the general formula   R1 being a saturated or unsaturated aliphatic, cycloaliphatic or aromatic hydro-carbon radical, R2 being a straight chain or branched alkylene radical, R3 being a hydrogen atom or an alkyl radical and R4 being a hydrogen atom or an alkyl radical with up to 6 C-atoms and, optionally, together with further compounds for introducing additional crosslinking functions and/or other functions influ-encing film formation and/or film surface, the quantity of oxazolidine semi-ester being chosen such that the epoxy-fr?. final product has a theoretical amine number of at least 35, preferably 50 to 140 mg KOH/g.
Patent CA-1152121-A (CA)
Inventor: WOLFORD DALE E
IPC: F16J15/36
Filed: 1981-03-11
Granted: 1983-08-16
Abstract: FACE-TYPE SHAFT SEAL       Abstract A face-type shaft seal characterized by a protective boot surrounding the rotating seal assembly inside of the coil spring, and a viscous material filling the boot cavity to prevent liquid and abrasive materials from entering the boot when the seal is used in a centrifugal pump.
Patent CA-1175719-A (CA)
Inventor: ELLIS JAMES B
IPC: B43M7/02
Filed: 1981-03-30
Granted: 1984-10-09
Abstract: ABSTRACT OF THE DISCLOSURE A method and apparatus is disclosed in which a plurality of envelopes are arranged and aligned in face-to-face relationship to form at least one batch of envelopes.  The batches of envelopes are conveyed around an endless conveying loop oriented in a substantially vertical plane and defining upper and lower horizontal conveying paths.  The edges of tile envelopes are sprayed with a liquid envelope material degrading agent that functions more effectively when heated,  The envelope edges are contacted with planar heating members and the envelopes are bent inwardly so that the edges are laterally displaced out of the planes defined by the major portions of the associated envelopes to promote more effective contact of the envelope edges with the heating members whereby the envelope material is degraded along the edges.
Patent CA-1158148-A (CA)
Title: Vehicle seat with individual adjustable front thigh  support
Inventor: MURPHY RANDALL T
IPC: B60N2/62
Filed: 1981-04-03
Granted: 1983-12-06
Abstract: VEHICLE SEAT WITH INDIVIDUAL ADJUSTABLE FRONT THIGH SUPPORT                       ABSTRACT         A vehicle seat having a seat portion, a support frame for the seat portion, a back rest portion and an independently adjustable, front thigh support slidably supported at the front of the seat portion.  A pair of spaced slideways define a slide path for the thigh support extending from a fully retracted position to a fully ex-tended position.  In a first embodiment of the invention, the slide path is inclined upwardly in a forward direction at an angle which is sufficiently small enough that the sliding friction between the slideways and corresponding slide members of the thigh support prevents the weight of the thighs of a person sitting in a seat from moving the thigh support in a retracting direction.  In a second embodiment of the invention, the slide path lies in an upwardly extending curved surface.  A pair of biased locking members are movable between unlocked and locked positions on their respective slideways to alternately unlock and lock the thigh support in any selected  position between the fully extended and retracted positions.
Patent CA-1154815-A (CA)
Title: Alternator assembly having a rectifier device
Inventor: SHIGA TSUTOMU
IPC: H01L23/32
Filed: 1981-04-23
Granted: 1983-10-04
Abstract: ABSTRACT OF THE DISCLOSURE         An alternator assembly for an automotive vehicle including a rectifier device composed of a plurality of diodes supported on a negative-side cooling fin of semi-circular arc shape, a plurality of diodes supported on a positive-side cooling fin of semi-circular arc shape, and a terminal board supporting a plurality of terminals connected to the diodes.  The rectifier device is assembled and held in a unitary structure by a plurality  of metal members, and arranged in a space defined by an end frame and a rear cover of the alternator assembly in such a manner that the metal members are in contact at one end thereof with the rear cover and at the other end thereof with the end frame,
Patent CA-1161483-A (CA)
Inventor: ROBERTS ARDEN J
IPC: F16C33/10
Filed: 1981-04-23
Granted: 1984-01-31
Abstract: ABSTRACT OF THE DISCLOSURE         A split-angle end rod assembly comprising an elon-gated rod having a longitudinal axis and integral with an upper bearing housing.  A separate lower bearing housing is included and bolts secure the two bearing housings to-gether to define a circular bearing pocket.  The housings mate on a diameter which is disposed at an acute angle relative to the longitudinal axis of the rod.  A sleeve bearing is disposed in the pocket and includes an inner bearing surface surrounding a cylindrical journaled member in close spaced relationship therewith.  The bearing surface has a first portion extending circumferentially on a constant radius and a second portion extending throughout the remaining circumference but being disposed outside the constant radius of the first portion and joins the first portion on the constant radius thereof.  The bearing sleeve comprises identical two half-shells with each half-shell including one-half of each of the first and second bearing portions and mating on a dividing diameter.          The half-shells are disposed in the respective bearing housings.  In one embodiment the entirety of the second portion extends about a reference axis on a second constant radius whereas in another embodiment the second portion on one side of the dividing diameter extends about a first reference axis on the second constant radius and on the other side of the diameter extends about a second reference axis on the same second constant radius.
Patent CA-1160082-A (CA)
Inventor: HUIGNARD JEAN-PIERRE
IPC: G03H1/04
Filed: 1981-05-08
Granted: 1984-01-10
Abstract: ABSTRACT OF THE DISCLOSURE               Extensive field camera A camera in accordance with the invention comprises a coherent light source from which is formed an object illuminating beam and pumping radia-tion, as well as a detector. It also comprises an interaction medium for receiving the wave emerging from the illuminated object and the pumping wave which records there a system of layers. This medium diffracts in real time a replica of the object wave which is matched in phase thereto.
Patent CA-1167166-A (CA)
Inventor: MOULTON CLIFFORD H
IPC: G07C9/00
Filed: 1981-06-15
Granted: 1984-05-08
Abstract: Abstract A method for analyzing stored image details for identification purposes is disclosed in which slopes are abstracted from an image to provide three-dimensional recognition information.  Data representing light levels of an image are stored in a picture memory device, which is analyzed in a predetermined manner to select absolute illumination magnitudes between fixed locations of the image.  This information is directly related to the slope between the locations.  Steeper slopes and their correspond-ing locations are stored as recognition data in a learn mode.  In an access mode, the previously-obtained information is utilized to locate new data, and depending upon the degree of correlation therebetween, an indication of recognition is either verified or rejected.
Patent CA-1162597-A (CA)
Inventor: SACHS ISAAC
IPC: H01R4/64
Filed: 1981-06-29
Granted: 1984-02-21
Abstract: ABSTRACT      A one-piece pliable metal grounding strap comprises a U-shaped section having a pair of leg portions inter-connected by a bight portion.  One of the leg portions has an inwardly bent section extending adjacent thereof and across the bight portion, the bent section being adapted to contact on one side thereof a ground member; a hook member outwardly projects from this leg portion.  A collar member is fixed to the bight portion, the collar member having a threaded bore adapted to threadably engage a screw member and being disposed to permit the screw member to frictionally engage the bent section on the other side thereof substantially perpendicularly thereto.  The other leg portion is extended relative to the aforesaid one leg portion to define an elongated wrap section adapted to be bent about the ground member and over the one leg portion and the bight portion with the ground member disposed between the bent section and the wrap section; the wrap section is provided with a plurality of longitudinally spaced apart apertures adapted to receive the hook member and to register with the threaded bore for receiving the screw member.  Tightening of the screw member causes same to frictionally engage with the bent section against the ground member and to move the bight portion in a direction away from the bent portion, thereby causing the hook member to pull the wrap section in the same direction and to tighten same against the ground member.
Patent CA-1181118-A (CA)
Inventor: BAER JURGEN
IPC: H02K1/32
Filed: 1981-11-16
Granted: 1985-01-15
Abstract: ABSTRACT OF THE DISCLOSURE         An electrical machine axially-ventilated from opposite ends thereof.  A rotor is provided with a plurality of salient poles, field coils and a rotor shaft.  At least one coolant-distributing conduit extends axially along the rotor and radially between each of the poles.  The conduit has lateral surfaces spaced from the field coils so as to form a gap therebetween wherein a portion of the conduit facing the rotor shaft has a longitudinal aperture formed therein for communication with the gap. A gaseous coolant is supplied to the conduit and communicated to each of the plurality of field coils by the conduit.
Patent CA-1165377-A (CA)
Inventor: BUHRER CARL F
IPC: H01J61/30
Filed: 1981-11-19
Granted: 1984-04-10
Abstract: 23,127 ABSTRACT OF THE DISCLOSURE       A vacuum-tight assembly, such as a discharge tube for a sodium vapor arc lamp, includes a high density poly-crystalline ceramic body, such as alumina or yttria, having a cavity, at least one closure member, and a seal-ing material.  The closure member is formed from a molyb-denum-titanium alloy containing a small amount of nickel, cobalt, or copper.  The nickel, cobalt, or copper forms a relatively low melting eutectic with titanium, thereby facilitating fabrication of closure members by sintering. The closure member and the sealing material have thermal coefficients of expansion closely matched to the thermal coefficient of expansion of the ceramic body over a wide temperature range.
Patent CA-1173947-A (CA)
Inventor: SEIDEN LEWIS J
IPC: H03K19/0175
Filed: 1981-12-31
Granted: 1984-09-04
Abstract: Abstract of the Disclosure A switching system has N inputs and M outputs and three stages of matrices.  The first stage includes n substage matrices, each with x inputs and x outputs where N equal nx.  The second stage provides x substage matrices each with n inputs and m outputs, an output from each first substage matrix being connected to an input of each second stage matrix.  A third stage employs m substage matrices each with x inputs and x outputs where M = mx, an output from each second stage being connected to an input of each third substage matrix.  Switching means are provided at each node of each substage matrix.  Means is provided for choosing a proper sequence of switches to reach a selected output to be connected to a selected input.     By the addition of an extra input and output to each substage of the second stage with output to input connections between all substages of that stage, it is possible to connect an input from one substage to an output in another.  Such an arrangement in the middle stage of a three stage matrix, known as a mid stage link (MSL) allows conditionally non-blocked re-routing in situations where a substage appears to be blocked.
Patent CA-1184300-A (CA)
Inventor: ROESNER BRUCE B
IPC: H01L27/102
Filed: 1982-01-26
Granted: 1985-03-19
Abstract: ABSTRACT OF THE DISCLOSURE      MASK PROGRAMMABLE READ-ONLY MEMORY STACKED ABOVE A SEMICONDUCTOR SUBSTRATE         In the disclosed read-only memory, address decode means for addressing information in the memory lie in a semiconductor substrate; an insulating layer covers the  address decode means; an array of spaced-apart metal lines and semiconductor lines lies on the insulating layer over the address decode means; outputs from the address decode means respectively couple through the insulating layer to the metal lines and to the semiconductor lines; and a plurality of mask selectable electrical contacts between the metal lines and semiconductor lines forms a matrix of mask selectable diodes over the insulating layer representative of the information in the memory.
Patent CA-1142626-A (CA)
Inventor: WILSON WALTER A
IPC: G05D11/13
Filed: 1982-02-09
Granted: 1983-03-08
Abstract: METHOD OF AND APPARATUS FOR CONTROLLING THE CONCENTRATION AND STABILITY OF AN EMULSION     ABSTRACT OF THE DISCLOSURE         A method of and system for controlling the oil concentration in and the stability of an oil-in-water emulsion used as a coolant-lubricant in a metalworking operation in which a portion of the emulsion is circulated through a sensor to monitor its density and to generate a signal relating the density to the oil concentration.  The signal is employed to control addition of oil to the emulsion to thereby control the concentration within close limits.  Sensing means also monitors the stability of the circulated emulsion, and emulsifier is added, as required, either to the oil to be added or directly to the emulsion to thereby control both the oil concentration in and the stability of the emulsion.
Patent CA-1179309-A (CA)
Title: Train d'atterrissage de fuselage a roues en tandem
Inventor: TURIOT ANDRE
IPC: B64C25/14
Filed: 1982-02-17
Granted: 1984-12-11
Abstract: Train d'atterrissage pour aéronefs caractérisé essentiellement par le fait qu'il comprend au moins deux balanciers portant respectivement des roues, les balanciers étant liés rigidement et respectivement à deux points de la structure rigide de l'aéronef, chaque balancier étant relié respectivement à deux autres points rigides de la structure de l'aéronef par un ensemble composé d'un levier et d'un amortisseur montés pivotants l'un sur l'autre, et une bielle de longueur constante reliant les deux dits leviers et un vérin pour entraîner en rotation au moins un des deux dits leviers. Le train trouve une application particulièrement avantageuse comme train de fuselage à roues montées en tandem.
Patent CA-1169137-A (CA)
Inventor: RICHARDSON WILLIAM M
IPC: F24D19/10
Filed: 1982-03-01
Granted: 1984-06-12
Abstract: ABSTRACT OF THE DISCLOSURE A control circuit for a heating system having a gas burner assembly, a heat absorbing coil, a heat releasing coil, a circulating pump for pumping a hydronic fluid between the two coils, and an air blower for the heat releasing coil is disclosed.  The control circuit includes a thermostat located in the space to be heated and a first relay switch which electrically connects the circulating pump in response to a signal from the thermostat.  A combustion safety control is electrically connected to the thermostat, a main gas valve, and a flame sensor such that the main gas valve is open in response to a signal from the thermostat and the main gas valve is closed where no signal is receive-ed from the thermostat or an insufficient signal is received from the flame sensor,  A second relay switch is electrically connected to the air blower, the circulating pump, and a hydronic fluid temperature sensor such that in response to a signal from the fluid temperature sensor the air blower and the circulating pump are electrically connected. After the thermostat ceases to send a signal to the first relay switch, the second relay switch acts to elec-trically connect the air blower and the circulating pump so long as the temperature of the fluid is sufficient to provide heat to the space to be heated,  A number of safety features are also provided.
Patent CA-1183340-A (CA)
Inventor: GREEN PETER C
IPC: C09K8/10
Filed: 1982-03-22
Granted: 1985-03-05
Abstract: HIGH TEMPERATURE STABLE                 FLUID LOSS CONTROL SYSTEM     Abstract of the Invention The present invention is directed to a high temperature stable composition capable of imparting a combination of pseudoplasticity and fluid loss control properties to aqueous systems.  The composition is a combination of:           (a) a solid, particulate silicate or alumino-silicate material; (b) a chemical compound capable of converting to a higher oxidation state under alkaline conditions; and (c) a reaction product of a polymeric substance selected from polyvinyl alcohol or hydroxyalkyl cellulose reacted with at least 1 percent of stoichiometry of a cross-linking agent selected from an epihalohydrin or an aldehyde containing or generating agent; wherein the amount of component (a) is at least 75 wt. percent of component (c) and component (b) is at least 25 wt. percent of component (c).    The invention is further directed to improved drilling fluids containing said composition and to the process of drilling bore holes using said improved fluid.
Patent CA-1177617-A (CA)
Inventor: MACOSKO CHRISTOPHER W
IPC: B29C67/24
Filed: 1982-03-31
Granted: 1984-11-13
Abstract: ABSTRACT OF THE DISCLOSURE:     A mixhead for a reaction injection molding machine utiliz-ing at least two liquid components supplied under pressure from a delivery system including a recirculation line.  The mixhead comprises a housing having a longitudinal channel through the housing and a ram fit with a close slide fit in the channel.  The ram is reciprocable from a first upstream position to a second downstream position.  A first inlet port extends through the housing into the channel.  A first exit port extends from the channel through the housing upstream from the inlet port and on the opposite side of the channel. At least one other similar inlet and outlet port is provided, each spaced peripherally around the channel from the first inlet and outlet ports.  Spaced apart recirculation passages extend through the ram to connect the respective inlet and outlet ports when the ram is in its second downstream position.
Patent CA-1170283-A (CA)
Inventor: COPPERTHWAITE MARTIN
IPC: C04B35/04
Filed: 1982-04-29
Granted: 1984-07-03
Abstract: ABSTRACT BASIC REFRACTORY  CEMENTITIOUS MATERIAL   AND COMPONENTS THEREOF         A cementitious formulation which is self-setting when mixed with water, and which can be cast into monolithic refractory components capable of resisting molten metal and repeated thermal shocks, has three main components: high purity magnesia (at least 94% by weight being MgO); high purity alumina (at least 98% by weight Al2O3) and high alumina cement (preferably 75% Al2O3 by weight, or greater).  The magnesia may be 60 to 95% by weight of the three components and the alumina amounts to at least 1% by weight of the three components.  Castings produced from the formulation can survive repeated flame testing even after exposure to firing at elevated temperatures.
Patent CA-1171127-A (CA)
Title: Groupe bulbe turbine-alternateur a refroidissement  externe avec multiplicateur de vitesse
Inventor: ALLEGRE JEAN
IPC: F03B13/10
Filed: 1982-06-29
Granted: 1984-07-17
Abstract: La présente invention concerne un groupe bulbe de forte puissance à refroidissement externe avec multiplicateur de vitesse. Le tronçon avant contenant l'alternateur se raccorde au tronçon intermédiaire de diamètre supérieur contenant le multiplicateur de vitesse par une bride dans la largeur de laquelle débouchent longitudinalement des tubes de refroidissement externe parcourus par l'air de refroidissement de l'alternateur. Application à la production d'électricité.
Patent CA-1189584-A (CA)
Title: Cable de telecommande a element central textile  positionne
Inventor: SEGUIN PIERRE
IPC: H01B7/04
Filed: 1982-07-09
Granted: 1985-06-25
Abstract: Câble de télécommande utilisable pour la transmission des directives de commande de mobiles se déplaçant à vitesse élevée, comprenant: un élément central constitué par un élément textile, et deux fils conducteurs en contact avec l'élément central sur toute leur longueur et séparés par ledit élément central qui maintient lesdits fils conducteurs parallèles et selon un écartement prédéterminé, le diamètre de l'élément central étant légèrement supérieur à l'écartement desdits fils conducteurs. Un enrobage thermofusible recouvre l'élément central et les fils conducteurs, et un faisceau de filaments entoure cet enrobage. Au moins une couche de guipage entoure le faisceau de filaments.