baber/WOPTO huggingface dataset:
Patent CA-1057651-A (CA)
Inventor: NELSON WAYNE F
IPC: E21B21/10
Filed: 1977-07-04
Granted: 1979-07-03
Abstract: ABSTRACT OF THE DISCLOSURE           The invention is a differential valve apparatus principally for use in treating subterranean wells, usually in connection with cementing a string of casing into a well bore.  The apparatus, at or near the low end of the casing, has a pressure actuated slidable piston which rises as liquid is encountered in the well bore opening parts for admitting liquid into the casing until the pressure from liquid in the casing reaches a predetermined ratio with respect to the pressure in the well bore annulus.      Means are provided for locking the piston in its closed position after the casing string is in place in the well, permitting the use of the apparatus as a conventional cementing valve apparatus.
Patent CA-1083616-A (CA)
Inventor: DULHUNTY PHILIP W
IPC: H02G7/14
Filed: 1977-07-07
Granted: 1980-08-12
Abstract: ABSTRACT OF THE DISCLOSURE A vibration damper is provided comprising a resilient messenger cable having a clamp intermediate its ends for securing it to a conductor. The cable has a weight secured at each end so that the centre of gravity of each of the weights is disposed away from the axis of the cable.  Each of the weights comprises an enlarged head portion attached to the ends of the cable, a connector arm extending from the head portion in a direction away from the messenger cable and generally inward toward all intermediate posi-tion, and a further mass supported at the distal end of the arm, the fur-ther mass being   smaller in size and weight than the head portion.  Pre-ferably, the weights comprise a generally spherical, substantially solid, head portion adapted for attachment to the messenger cable, and an arm por-tion extending from the head portion to a further, generally spherical, smal-ler mass located at the distal end of the arm portion, the arm portion form-ing an acute angle with the messenger cable when the damper weight is attached thereto and especially where the concentrated spaced masses are smoothly contoured in transition from the held portion to the smaller mass. The size and placement of the further mass produces substantial local flex-ing of the messenger cable adjacent the innermost point of contact of the cable with the weight when the weight oscillates about its centre of gravity. This allows the damper to operate with an improved frequency response curve.
Patent CA-1073044-A (CA)
Inventor: CHIREAU ROLAND F
IPC: H01M50/491
Filed: 1977-07-27
Granted: 1980-03-04
Abstract: Abstract of the Disclosure A negative interseparator for use as a component in a separator system for alkaline rechargeable batteries comprises about 50% to 95% by weight of a titanate material such as potassium titanate, a matrix-forming fibrous material, and a thickening agent for use in forming the interseparator.  The negative interseparator is interposed between the negative electrode and "main separator" in the aforementioned batteries.
Patent CA-1085160-A (CA)
Inventor: DEZELAN JOSEPH E
IPC: E02F9/22
Filed: 1977-09-26
Granted: 1980-09-09
Abstract: LOCKING MECHANISM FOR MOVABLE VEHICLE MEMBERS     Abstract of the Disclosure A locking mechanism is provided for an apparatus having a first member movable relative to a second member providing a plurality of spaced holes therein including:  a housing secured to the first member; a lock pin extendably retractably mounted in the housing for insertion into the holes in the second member; and a powered control circuit having an actuated member movably mounted within the housing and connected to the lock pin, the actuator member providing differential force applying surfaces selectively exerting a predetermined locking force to hold the lock pin in the holes and a lower indexing force permitting substantially unrestricted relative movement between the first and second members and automatic insertion of the pin into one of the aligned holes.
Patent CA-1088513-A (CA)
Inventor: MYREEN BERTEL
IPC: B01D1/26
Filed: 1977-09-27
Granted: 1980-10-28
Abstract: ABSTRACT OF THE DISCLOSURE           An apparatus is provided herein for heat exchange between two liquids without solid matters contained in the liquids.  The apparatus comprises a pressure vessel which is divided into a plurality of compart-ments, each compartment comprising an inner space having an open end and an outer annular space.  A baffle having a closed upper end is provided around the upper portion of each inner space with an annular slit between the baffle and the wall of the inner space.  The baffle extends to a level below the upper end of the inner space.  Injection nozzles for the heat receiving liquid are provided in the upper portion of the outer space of each compartment, and an outlet pipe is connected to the lower end of the outer space.  Inlet and outlet pipes for the heat delivering liquid are connected to the upper and lower ends respectively of the inner space.  The inner and outer spaces respectively are connected in series, and the heat delivering and heat receiving liquids are fed in countercurrent flow with respect to each other.  The heat delivering liquid generates vapor that passes downwardly through the annular slit between the inner space and the baffle and then upwardly to meet droplets of the heat receiving liquid from the nozzles,  This heat exchange appara-tus has several advantages, namely:  several units are built in into one pressure vessel, whereby the costs both of the pressure vessels and of their supporting structures are substantially reduced;  the cyclone part is completely enclosed with the pressure vessel and has no part in common with the pressure vessel wall;  the expansion vapor is carried down into the condenser part so that countercurrent flow is accomplished in this part;  and a plurality of nozzles is employed for distributing the suspen-sion in the condenser part, whereby better utilization of its volume is achieved.
Patent CA-1103109-A (CA)
Inventor: STEINER ROBERT H
IPC: B32B27/08
Filed: 1977-10-25
Granted: 1981-06-16
Abstract: COATING COMPOSITIONS AND THERMOPLASTIC FILM SUBSTRATES COATED THEREWITH            Abstract of the Disclosure A multipolymer coating composition particularly adapted for coating thermoplastic film substrates, comprising an inter-polymer of (a) vinylidene chloride, (b) an alkyl acrylate such as methyl acrylate and (c) methacrylic acid or mixtures thereof with acrylic acid.
Patent CA-1098969-A (CA)
Inventor: FEATHERSTONE HARRY E
IPC: B23K35/22
Filed: 1978-01-06
Granted: 1981-04-07
Abstract: METHOD OF JOINING TWO SHEET         METAL PARTS              Abstract of the Disclosure A method of joining first and second sheet metal parts along a common seam formed by a first surface on the first part and a second surface on the second part.  The surfaces are in abutting relationship at the seam and have a corrosion resistance layer therebetween.  In accordance with this method, there is provided a thixotropic, non-hardening, corrosion resistant material including a solvent and having negligible gravity flow at temperatures less than about 400°F to 440°F and forming a heat insulating, coherent gel when the solvent. is burnt.  In accordance with this method, a layer of the ma-terial of at least about 6-10 mils is applied over the first surface, the first and second surfaces are then clamped to-gether to form the common seam, spot welding electrodes are then placed on opposite sides of the seam to engage the clamped metal parts at a weld zone extending through the parts. Thereafter, the electrodes are forced together at a selected pressure.  This forcing step is continued until the corrosion resistant material is squeezed from the welded zone to a thick-ness less than about 1 mil.  Thereafter, a welding current of-a selected amperage is passed between the electrodes for a weld time sufficient to melt the metal of the two parts at the surfaces and in the weld zone while continuing the afore-mentioned forcing step.  After the melting, current is dis-continued and the forcing step is continued for a time sufficient to allow solidification of the melted metal of the parts in the weld zone.  In this manner, spot welding is accomplished between the two parts separated by a corrosion resistant layer, except in the nugget of the weld.
Patent CA-1108111-A (CA)
Inventor: LANGER ARTHUR W JR
IPC: C08F4/60
Filed: 1978-01-17
Granted: 1981-09-01
Abstract: ABSTRACT OF THE DISCLOSURE           A new improved Ziegler type catalyst system for alpha-olefin type polymerization includes R'3Y or R'2YX and mixtures thereof, at least one Group IVB-VIII transition metal halide and an alkyl metal compound selected form R'2YNR2 and R'XYNR2, wherein Y is Al, Ga or In.  The improved catalyst system provides increased polymerization activity without significantly affecting the crystallinity of the polymer.
Patent CA-1083506-A (CA)
Inventor: HIGGINS PETER B
IPC: F16D37/00
Filed: 1978-02-07
Granted: 1980-08-12
Abstract: CENTRIFUGAL FLUID POWDER CLUTCH                      Abstract of the Disclosure A centrifugal clutch for mechanical transmission which includes a two-part casing and an internal rotor with a pseudo-fluid, material between the casing and rotor, wherein a face of the rotor opposite a face of the casing has a succession of grooves or waves which are substantially sinu-soidally shaped in a peripheral direction, and wherein each internal face of the casing has a succession of concave pockets, which are sub-stantially egg-shaped, as formed by an internal section of an egg-shell cut lengthwise through the egg, with the wider end of the egg cut off to a radius which will conform to the inside diameter of the casing, and with the narrower end of the egg cut off to a radius which will conform to the outside diameter of an internal boss within the casing.         The two parts of the casing are joined together to form an annulus and the areas separating the pockets are cham-fered adjacent the edges of the pockets and are flat or convex between the chamferred portions.  The shape of the pockets en-a bles the pseudo-fluid material to flow more readily from pocket-to-pocket and thereby to transfer heat from the material to the casing.  To prevent racheting, there are an odd number of pockets in the casing and an even number of waves in the rotor or vice versa.
Patent CA-1084858-A (CA)
Inventor: BENDT ANDERS
IPC: B65D6/36
Filed: 1978-02-23
Granted: 1980-09-02
Abstract: ABSTRACT OF THE DISCLOSURE Protecting device for the edges of boxes, cartons or the like, especially, but not exclusively, on spots where ropes or lashings are tied around the objects, and generally but not exclusively with a right angular cross section, and which at the vertex of the angle has an outward protruding arcuate shape covering threequarter or substantially three-quarter of a circle, and where the sides of the angle may be sent outward at their outer ends and/or provided with wave-shaped outward protrusions, and which generally form a rod from which pieces of desired length may be cut off.
Patent CA-1092848-A (CA)
Inventor: ZEPP LAWRENCE C
IPC: G01N21/85
Filed: 1978-03-03
Granted: 1981-01-06
Abstract: Abstract Apparatus for measuring a preselected charac-teristic, such as moisture, of viscous and/or absorp-tion fluids in which an open hollow tube of optically reflective material is disposed within a fluid conduit closely adjacent an optical window to define a test material flow path between the window and reflector.          A measurement beam incident upon the reflector tube from externally of the conduit through the window and test material is reflected thereby back through the material and window to detection apparatus.  In alter-native embodiments, the reflector tube is fixedly mounted coaxially with the conduit to define a fixed window/reflector separation, or is rotatably mounted eccentrically of the conduit axis for adjustment of the window/reflector separation.
Patent CA-1046109-A (CA)
Inventor: WIESCHEL JOHN E
IPC: B66D5/10
Filed: 1978-03-06
Granted: 1979-01-09
Abstract: HYDRAULIC BRAKE SYSTEM FOR CRANE HOIST DRUM    Abstract of the Disclosure A hydraulic brake system for the hoist drum of a lifting crane to achieve good control over loads being held or lowered by the load line wrapped on the hoist drum comprises a brake band for exerting a braking force on the hoist drum. The system further comprises a brake cylinder for operating the brake band; a brake valve for controlling the supply of fluid from a fluid source to the brake cylinder; a brake pedal for operating the brake valve and movable between a brake release position and a brake applied position; a valve toggle linkage connected between the foot pedal and the brake valve piston to cause the brake valve to supply fluid to the brake cylinder at a predetermined pressure when the pedal is depressed to a first brake applied position and for applying fluid at a greater pressure when said pedal is moved to a second brake applied position which offers a mechanical advantage; and a hydraulic simulator for adjusting the position to which the foot pedal can be depressed. The hydraulic simulator includes a cylinder, a piston, a biasing spring for biasing the piston to a position wherein all fluid is expelled from the cylinder, and an adjustable stop screw for limiting piston travel, the stop screw being adjustable to control the amount of fluid that can be supplied from the brake valve to the hydraulic simulator when the pedal is depressed to thereby control the extent to which said pedal can be depressed.
Patent CA-1098501-A (CA)
Inventor: SALTER COLIN J
IPC: F16L3/205
Filed: 1978-03-07
Granted: 1981-03-31
Abstract: ABSTRACT       A spring support of the constant spring force type suitable for supporting pipes in installations where the pipes are liable to move laterally whilst in use, as for example in the case of pipes through which steam is conveyed, is arranged so that the pipe or other load which the support has to carry in use can be attached to a pivoted lever of the support at various positions at different distances from the pivot.  The load is attached through load connecting means to a carrier which is variably positioned on the lever. By adjusting the pos-ition of the carrier the turning moment produced on the lever by any one of a range of loads can be arranged to be equal and opposite to the turning moment produced by the spring force which acts on the lever. The facility for adjustment has the manufacturing advantage that a standard form of lever can be produced for supporting a range of loads.
Patent CA-1096315-A (CA)
Title: Filter apparatus
Inventor: CROWE WILLIAM D
IPC: B01D33/04
Filed: 1978-03-15
Granted: 1981-02-24
Abstract: ABSTRACT OF THE DISCLOSURE A filter apparatus wherein filter media  is submerged in liquid being filtered and suction is employed under the media to increase the flow through it.  The filter media in elongated strip form is supported for move-ment in one direction on an inclined endless pervious conveyor comprised of rigid plate member fixed to a pair of drive chains.  A receiving tank for dirty liquid is above the conveyor and media with a lower tank for clean liquid below the conveyor with the sides and ends of the lower tank being constantly sealed in order to maintain reduced pressure therein to enhance flow through the media.  Filtered liquid at a somewhat higher pressure is supplied at the sides of the conveyor and at end walls of the receiving tank to prevent any migration of dirty liquid into the lower tank at the periphery of the lower tank.  Advancement of the filter media is controlled automatic-ally in response to variation in the pressure differential on opposite sides of the media which varies in proportion to the dirt load of the media.
Patent CA-1092160-A (CA)
Inventor: BUCHHOLZ BERNARD
IPC: B01J29/00
Filed: 1978-03-15
Granted: 1980-12-23
Abstract: MANUFACTURE OF TERTIARY MERCAPTANS       USING ZEOLITE CATALYSTS                      Abstract of the Invention Certain synthetic zeolites have been found to provide high conversion over extended periods when used as catalysts in the addition reaction of hydrogen sulfide with branched, unsymmetrical olefins to produce tertiary mercaptans.
Patent CA-1087848-A (CA)
Inventor: BECKER JAMES R
IPC: A63H7/00
Filed: 1978-05-10
Granted: 1980-10-21
Abstract: ACTION TOY         An action toy comprising a frame and a toy figure mounted thereon.  The frame is provided with a fork.  A crank is rotatably mounted on the fork.          A wheel is disposed within the fork and mounted on the crank for rotation therewith.  At least one shoe-shaped pedal is rotatably mounted on the crank.          An elastomeric member is coupled to the pedal and to the toy figure.  When the wheel is caused to ro-tate, the elastomeric member flexes and stretches and the pedal performs a pitching movement to simulate a pedaling action.
Patent CA-1099033-A (CA)
Inventor: ARNOLD DAN M
IPC: G01P5/00
Filed: 1978-05-15
Granted: 1981-04-07
Abstract: ABSTRACT OF THE DISCLOSURE         Fluid in permeable earth formations adjacent well casing is irradiated with neutrons to form radioactive tracer isotopes in the chemical elements comprising the fluid, typi-cally sodium 24 in saline subsurface formation water, and in other elements in the casing and formation each of which de-cays by emission of gamma rays.  By measuring the rate of decay of the radioactive tracer isotope, a measure of hori-zontal fluid flow in the formation is obtained.  The elements in the casing and formation have been found to also respond to the neutron irradiation by forming radioactive isotopes, such as calcium 49 in the formation and manganese 56 in the steel casing, which emit gamma rays which interfere with the gamma radiation measurements of the trace element indicative of water flow.  A method of measuring horizontal fluid flow while compensating for the presence of gamma rays from ele-ments in the casing and formation and also increasing the accuracy of the measured linear fluid flow velocity is dis-closed.                             -I-
Patent CA-1129128-A (CA)
Title: Process for the preparation of aqueous  polyurethane dispersions and solutions
Inventor: PEDAIN JOSEF
IPC: C08G18/00
Filed: 1978-05-24
Granted: 1982-08-03
Abstract: ABSTRACT OF THE DISCLOSURE            The present invention therefore relates to a process for the preparation of aqueous solutions or dis-persions of polyurethane-polyureas by the reaction in the aqueous phase of prepolymers which contain chemically built-in hydrophilic groups and/or external emulsifiers which are not bound chemically as well as at least two free isocyanate groups with organic compounds con-taining at least two primary and/or secondary amino groups, characterized in that the isocyanate prepolymer which has been hydrophilically modified and;or contains an external emulsifier is mixed, in the absence of water, with compounds containing at the most one free primary or secondary amino group and at least one blocked group which releases a free primary or secondary amino group in the presence of water and a total of at least two at least partially blocked primary and/or secondary amino groups, and the mixture is subsequentlymixed with water.                    The invention also relates to the dispersions or solutions obtained by this process and to their use for coating flexible and rigid substrates.
Patent CA-1117060-A (CA)
Inventor: HILFMAN LEE
IPC: C10G47/18
Filed: 1978-09-28
Granted: 1982-01-26
Abstract: HYDROCRACKING PROCESS FOR THE PRODUCTION OF LPG            ABSTRACT           Hydrocarbons are converted with a catalyst comprising a Group VIII metal component combined with an extruded support containing alumina and mordenite.  Key feature of the process involves the critical quantity of mordenite present in the composition, thereby effecting and maximizing some basic en-hancement of the ability of the resultant catalyst to accelerate hydrocarbon conversion reactions that depend on carbonium ion intermediates; i.e., the activity level of the resultant com-posite is markedly increased.
Patent CA-1127253-A (CA)
Inventor: FUKUDA SUNICHI
IPC: H02G5/00
Filed: 1978-10-06
Granted: 1982-07-06
Abstract: ABSTRACT OF THE DISCLOSURE This invention discloses a novel laminated bus embedding condenser.  The condenser consists of band-shaped conductors with an insulating layer integrally interposed therebetween.  The condensers are incorporated directly in the bus and thus, provide a more practical device with excellent distribution capacity.
Patent CA-1061784-A (CA)
Inventor: DENGLER SIEGFRIED
IPC: C09B3/02
Filed: 1978-10-18
Granted: 1979-09-04
Abstract: Abstract of the Disclosure The present invention pertains to novel intermediates useful in the preparation of novel dyestuffs.  The novel intermediates of the present invention are 2-cyano-3-amino-benzanthrones of the formula   wherein R4 represents a halogen atom, a lower alkyl group or a hydrogen atom.
Patent CA-1123925-A (CA)
Inventor: AVOCAT JEAN-PAUL
IPC: B29C/
Filed: 1978-11-29
Granted: 1982-05-18
Abstract: L'invention concerne un dispositif de protection de pièces enrobées et est caractérisée par le fait que les pièces à enrober sont protégées par une enveloppe constituée:a) d'une carapace de la pièce présentant une surface perpendiculaire aux efforts principaux susceptibles d'être exercés par la matière d'enrobage se contractant après mise en place,b) d'une couche de matière élastique interposée entre la carapace et la pièce,c) d'un entourage étanche de l'ensemble de la pièce de la coulée élastique et de la carapace, ledit entourage empêchant la matière isolante, coulée ultérieurement d'atteindre ce qu'il entoure.
Patent CA-1124901-A (CA)
Inventor: SATO MASARU
IPC: H03J5/02
Filed: 1978-12-14
Granted: 1982-06-01
Abstract: CHANNEL SELECTING APPARATUS FOR USE WITH SIGNAL RECEIVER AND SIGNAL RECORDER     ABSTRACT OF THE DISCLOSURE     Channel selecting apparatus for use with a signal receiver coupled to a first tuning device and a signal recorder coupled to a second tuning device.  The channel selecting apparatus is operable to tune the first and second tuning devices to preselected channels for receiving broadcast frequencies.  In one embodiment, the signal receiver is a television receiver including a video display, and the signal recorder is a video recorder, such as a video tape recorder (VTR).  Selectively operable channel selectors, such as selector switches, are common to the first and second tuning devices for generating and supplying channel selector signals to the tuning devices so as to determine the tuning condition of both tuning devices.  A locking circuit is operative in response to the actuation of the VTR to lock the second tuning device to the tuning condition determined by the channel selector signal generated by the channel selector switches immediately prior to said actuation of the signal recorder regardless of the subsequent generation of different channel selector signals by the channel selecting switches.  The locking circuit is opera-tive in the absence of the actuation of the VTR to enable the tuning condition of the second tuning device to be determined by the channel selector signals which are generated by the channel selecting switches simultaneously with the determination of the tuning condition of the first tuning device.  A switching circuit has first and second inputs coupled to the first and second tuning devices, respectively, to receive the channels to which the first -i-and second tuning devices are tuned, and an output coupled to the television receiver, the switching circuit being operative in the absence of the actuation of the VTR to connect the output of the switching circuit to the second input thereof.  When the VTR is actuated, the switching circuit is operative to connect the output thereof to its first input.  The broadcast frequency which is received by the second tuning device is supplied to the television receiver when the VTR is not actuated, and the broad-cast frequency which is received by the first tuning device is supplied to the television receiver when the VTR is actuated.     -ii-