baber/WOPTO huggingface dataset:
Patent CA-1105268-A (CA)
Inventor: HAVERDINK VIRGIL D
IPC: A01D17/20
Filed: 1979-08-28
Granted: 1981-07-21
Abstract: MATERIAL CONVEYOR              Abstract of the Disclosure A roll conveyor having paired counter-rotating grab rolls includes a reversing roll section on one grab roll for discharging material conveyed along it perpendicularly to the axes of rotation of the paired rolls.  One roll of each pair is composed of sepa-rate conveying and discharge or reversing sections that are rotatable about a common axes and in opposing directions.  The reversing section is provided at one end of the roll conveyor and cooperates with the other rolls at that end to tumble material transversely from the conveyor.  The non-reversing rolls adjacent the reversing section are further provided with helical flightings of opposite hand that meet midway along the reversing section to gather material for sideways discharge.
Patent CA-1123311-A (CA)
Inventor: HEATH RICHARD C
IPC: A62C35/00
Filed: 1979-08-29
Granted: 1982-05-11
Abstract: ABSTRACT OF THE DISCLOSURE     A fire extinguisher of the type comprising a burst-able container adapted to provide a high mass flow rate of discharged extinguishant is provided with venting means so adapted to direct the flow of extinguishant from the container that the reaction forces upon the container during discharge of extinguishant compensate one another to reduce the resultant force upon the con-tainer.
Patent CA-1121627-A (CA)
Inventor: SEGER RONALD G
IPC: G02C7/04
Filed: 1979-10-01
Granted: 1982-04-13
Abstract: ABSTRACT OF THE DISCLOSURE     A contact lens of a preselected mass has an optical zone and at least one peripheral zone.  The optical zone has a shape and thickness sufficient to result in a desired optical correction.  At least one peripheral zone has a thickness selected to correspond with that of the optical zone so as to result in the lens having the preselected mass.          In a preferred embodiment, the lens has an optical zone, an intermediate peripheral zone and an outer peripheral zone.          The intermediate peripheral zone has a thickness which is varied to correspond with that of the optical zone and the outer peripheral zone has parallel carriers.  The preferred embodiment may have an inner surface shaped so that the radius of curvature of the optical zone is substantially equal to that of the cornea at its optical centerline, the peripheral curves have centers of curvature offset from the centerline of the optical zone and the curves are tangent where they meet.  Such an inner curve can result in tearfilm clearance from the edge of the lens to the center of the optical zone.  The lens preferably has a low mass and is made from a silicone rubber.  The invention includes a set of at least two such lenses having the same mass and diameter but differing optical correction.
Patent CA-1125477-A (CA)
Inventor: STRIFFLER EUGENE JR
IPC: C01G21/06
Filed: 1979-10-09
Granted: 1982-06-15
Abstract: PRODUCTION OF LEAD MONOXIDE FROM LEAD SULFATE WITH ACETIC ACID          ABSTRACT:    An efficient and inexpensive method for producing lead monoxide from lead sulfate bearing materials such as recycled battery mud is provided comprising:    (a)  reacting said material with an ammonium carbonate solution to convert lead sulfate to lead carbonate;    (b)  decomposing the lead carbonate to form impure lead monoxide;    (c)  reacting the impure lead monoxide with acetic acid to form a lead acetate solution;    (d)  contacting the lead acetate solution with carbon dioxide to produce insoluble lead carbonate; and (e)  decomposing the lead carbonate to form lead monoxide.
Patent CA-1114323-A (CA)
Inventor: RHODES RONALD B
IPC: B65G45/16
Filed: 1979-10-19
Granted: 1981-12-15
Abstract: ABSTRACT OF THE DISCLOSURE   A conveyor belt cleaning device has a scraper blade element, preferably supported by a carrier, which is urged into contact with a surface to be scraped by a pressurised flexible-walled bag.  The pressurization of the bag maintains the scraper blade in contact with the belt and ensures a uniform contact pressure over the entire length of the blade.
Patent CA-1100766-A (CA)
Inventor: JACKSON HAROLD P
Filed: 1979-11-01
Granted: 1981-05-12
Abstract: ABSTRACT OF THE DISCLOSURE         A rotary lawn mower apparatus including a mower housing and an annular mulching liner attachment mounted with-in the mower housing and extending above the rotating cutter blade.  The mulching liner includes integrally formed guide vanes for directing the clippings inwardly toward the center of the mower housing where they pass downwardly through the plane of the rotating cutter blade to be finely mulched and propelled below the cutting plane onto the ground for maximum mulching efficiency.
Patent CA-1129461-A (CA)
Inventor: CHESTNUT BENJAMIN F
IPC: H01H43/10
Filed: 1979-11-13
Granted: 1982-08-10
Abstract: MOTOR DRIVEN CAM ACTIVATED TIMER SWITCH           Abstract of the Disclosure A timing mechanism wherein more compactness and better alignment between a cam lobe and switches operated by the cam lobe is accomplished.  The timing mechanism has two housings next to each other, one for a gear train and another for the switches.  A gear of the gear train has a hub portion with a cam lobe extending into the switch housing.  A cover of the switch housing has a circular portion that aligns with a bearing surface of an opening through which the hub portion extends.
Patent CA-1135245-A (CA)
Inventor: MATSUMOTO MUTSUMI
IPC: B01J27/198
Filed: 1979-12-12
Granted: 1982-11-09
Abstract: ABSTRACT OF THE DISCLOSURE     A catalyst having heteropoly-acid structure and the general formula:                               wherein, X represents one or more elements selected from the group consisting of tin, lead, cerium, cobalt, iron, zirconium, thorium, tungsten, germanium, nickel, rhenium, bismuth, antimony, chromium, boron, magnesium. silver, aluminum, zinc, and titanium and a, b, c, d, o, f, and g represent the atomic ratio of the elements  where, a is 10, b is a number of 3 or less than 3 excluding 0, c is a number of 0.5 to 6, d is a number of 3 or less than 3 excluding 0, e is a number of 3 or less than 3 excluding 0, f ? a number of 0 to 3, g is a number determined depending on the valency and atomic ratio of other elements.  There is also provided a process for producing methacrylic acid by oxidizing methacrolein with molecular oxygen or molecular oxygen-containing gas in the presence of the catalyst defined.
Patent CA-1134126-A (CA)
Inventor: HOLVOET MARCEL
IPC: A61F13/53
Filed: 1979-12-14
Granted: 1982-10-26
Abstract: Insertion process of pulverulent products (3) so called "super absorbing" in a fiber structure. The powder of the super absorbing product (3) is deposited on a fiber layer (1), a fiber mat (2) comes on top for covering and the fiber mat is bound to said fiber layer, according to cohesion lines and/or points (4), so as to define between said layer and said mat spaces in which a certain amount of powder of super absorbing product (3) is trapped. Application to absorbing fiber structures, particularly sanitary towels.
Patent CA-1130796-A (CA)
Inventor: KENDALL JOHN A
IPC: B01F7/24
Filed: 1980-01-29
Granted: 1982-08-31
Abstract: ABSTRACT OF THE DISCLOSURE           An improved mixing apparatus involves a vessel having an interior surface in the shape Or at least two intersecting conical frustums with axes parallel and sub-stantially vertical.  At least two interengaging helical screw elements are rotatably mounted within the vessel such that when co-rotated they interengage along their length and also conform to the interior surface of the vessel to effect a complete cleaning of each other and of the interior surface of the vessel.  The bottom portion of the screw elements form a pressure generating zone and the upper portion Or the screw elements form a mixing zone having a hollow centre described by the co-rotating screw elements.  In the mixing zone each screw element includes a continuous transition from a multilobal cross-section, e.g. trilobal cross-section (bounded by 3 equal arcs), to a circular cross-section.  The circular cross-section, of the screw elements in the upper part of the mixing zone i.e. above the liquid level, provide greater screw element-to-screw element shear than do the multilobal cross-sections of the screw elements according to the prior art.  The mixing apparatus is useful, for example for finishing high viscosity synthetic polymers such as polyamides polyesters, etc.
Patent CA-1136169-A (CA)
Inventor: HURN RICHARD L
IPC: B25B1/24
Filed: 1980-03-26
Granted: 1982-11-23
Abstract: IMPROVED WORKPIECE SUPPORT ARRANGEMENT     ABSTRACT OF THE DISCLOSURE     An improved workpiece support arrangement is described having a vise including first and second jaw members, de-mountable first auxiliary support bodies rotatably supported on said jaws and demountable second auxiliary workpiece gripping bodies demountably supported on said first auxiliary bodies.
Patent CA-1148330-A (CA)
Inventor: BANIEL AVRAHAM M
IPC: B01D11/04
Filed: 1980-04-01
Granted: 1983-06-21
Abstract: ABSTRACT OF THE DISCLOSURE        The invention provides a process for the separation of a strong mineral acid from other species present in an aqueous solution and the recovery thereof.  The process com-prises the steps of:  (a)  bringing an aqueous solution containing the mineral acid to be separated into contact with a substantially immiscible extractant phase, whereupon the mineral acid to be separated selectively and reversibly transfers to the extractant phase;  (b)  separating the two phases; and (c) backwashing the extractant phase with an aqueous system to recover substantially all the mineral acid contained in the extractant phase.  The special extractant phase used comprises a strong organic acid which acid is oil soluble and substantially water immiscible both in free and in salt form, an oil soluble amine which amine is substantially water insoluble both in free and in salt form and a carrier solvent for the organic acid and amine, the molar ratio of the organic acid to amine in the extractant phase being between about 0.5:2 and 2:0.5.
Patent CA-1138788-A (CA)
Title: Friction wear pad and method and means  for fastening said pad to a disk core  member
Inventor: CROSSMAN RICHARD L
IPC: F16D65/092
Filed: 1980-04-18
Granted: 1983-01-04
Abstract: METHOD AND APPARATUS FOR FASTENING FRICTION         WEAR PADS TO DISK CORE MEMBER            Abstract of the Disclosure Friction pads are mounted to a disk core member wherein the base of each pad is formed with a plurality of extended tabs that are inserted in apertures through the disk core member and secured to the tabs of a pad on the opposite surface thereof by a clip that draws the base-to-base mounted pads together on the core member,  Alternatively, and for mounting on a single face surface of the core member, U-clips are mounted on the tabs and inserted through the core member to the opposite surface thereof and the ends of the U-clips are bent down into annular grooves in the face surface thereof to securely mount the pads to the core member.
Patent CA-1103136-A (CA)
Inventor: JANIN PIERRE R
IPC: C12Q1/04
Filed: 1980-06-03
Granted: 1981-06-16
Abstract: Abstract of the Disclosure A biological testing device comprising a container and plug is disclosed.  The container in combination with the plug makes it possible to test a bacterial suspension with a number of different reagents simultaneously. The container which is open at one end has a plurality of microtubes arranged around its lower inside periphery.  The plug which fits within the opening of the container distributes the bacterial suspension in substantially equal amounts to each of the microtubes having different testing reagents.          A compression compensator adapted for use with the biological testing device is also disclosed.  The compensator comprises a chamber which is in communication with the interior of the container when the plug is in place therein.  The chamber contains a disc therein which can move in the manner of a piston to increase the volume of the chamber and thereby receive any gas or vapor vented from the testing device during use.
Patent CA-1140394-A (CA)
Inventor: DICKHART WILLIAM W III
IPC: B61F5/38
Filed: 1980-06-18
Granted: 1983-02-01
Abstract: ABSTRACT OF THE DISCLOSURE A tilt control system comprises a roll bar structure having two separate opposi ely rotatable members attached on the bottom of the cur body, on respective sides of the car body, between the car body and bolster.  Two lever arms connect the ends of the respective rotatable members to the bol-ster.  Means are provided for selectively rotating the rotatable members to actuate the lever arms in opposite directions to force the car body to tilt laterally with respect to the bolster.
Patent CA-1130079-A (CA)
Title: Corrosion resistant membrane for chimney liner
Inventor: PARKER JOHN A
IPC: F23J13/02
Filed: 1980-08-26
Granted: 1982-08-24
Abstract: Abstract of the Disclosure A carbon steel (or other type) chimney liner is provided with an inner membrane of relatively light gauge steel which is highly resistant to corrosion and which is constructed to accommodate thermal expansion in any direction independent of the structure to which it is attached.  The membrane and chimney liner include an annular space there-between which is placed under a vacuum.
Patent CA-1127887-A (CA)
Title: Optical device and method for aiding  vision
Inventor: KANTOR FREDERICK W
IPC: G02B6/04
Filed: 1980-09-05
Granted: 1982-07-20
Abstract: ABSTRACT OF THE DISCLOSURE         A microscope with a flexible fiber-optic bundle used as a scanner is provided to assist  the vision of people; particularly to enable persons with vision defects to read. The eyepiece of the microscope spreads the enlarged images onto the functional portion of the retina of the user.  A lenticular screen is used as a diffuser in the microscope. The person moves one end of the fiber-optic bundle along the material to be viewed in order to scan it.  The flexibility of the fiber-optic bundle facilitates the scanning motion. The character images are broken up into small segments by the fibers.  In each segment the light intensity is substantially the average of the light received by that fiber of the bundle.  Thus, confusing background details of the paper, etc., on which the matter is written, are substantially subdued or eliminated.
Patent CA-1168393-A (CA)
Inventor: NOIREL YVES M
IPC: H04N7/025
Filed: 1980-09-25
Granted: 1984-05-29
Abstract: --ABSTRACT OF DISCLOSURE       A system broadcasts videotext data in the form of data packets originating from numerical data coming from several paths.  Each packet has a prefix which contains synchronization and path identification code signals, a format signal which indicates the length of the data which follow the prefix.  The transmitting station has as many coupling devices as there are paths for originating data.  The coupling device has a data memory coupled to drive to a multiplexing circuit under the control of a common governing circuit.  An inhibition order is given either as soon as the memory is full, or as soon as a counter has reached a pre-determined count.  Then, the memory is connected to the multiplexing circuit, into which the stored data is emptied.  The system is characterized in that a small capacity buffer is used between the memory and the input circuit for reading data out of the buffer memory responsive to a programmer.  A transcoder treats the broadcast data to fit it into the system format.--
Patent CA-1147202-A (CA)
Inventor: DIDDE CARL W
IPC: B65H37/02
Filed: 1981-01-06
Granted: 1983-05-31
Abstract: WEB FED PRINTING COLLATOR PROCESSING UNIT AND METHOD            .          Abstract of the Disclosure Continuous printing collator apparatus for printing, handling, collating and final processing of multiple-page printed items such as business forms, booklets, small newspapers, and magazines is provided which includes structure for storate-in-process and/or drying of elongated, printed webs, and aligns a plurality of such webs in a continuous, in-line non-interrupted operation.  The apparatus preferably includes a plurality of elongated, individual, shiftable web-supporting bars oriented for receiving and supporting printed webs in a draped fashion thereon; the bars are mounted on a continuous, track (which may be serpentine, closed loop, or open loop) such that individual webs can be received seriatim and, after all webs have been received and aligned on the bars, the complete set thereof can be further processed.  The bars may include respective pins for insertion into corresponding web apertures or other means of holding the webs in position so as to facilitate initial and continuing alignment of the webs. Specialized apparatus for feeding and initial orientation of the webs onto the bars is also disclosed, along with corner-turning mechanism for positive, powered turning of the bars around tight arcuate corners in the track structure without binding of the bars therein.     (Docket No. 16728)
Patent CA-1167581-A (CA)
Inventor: MOORE LORENZO D
IPC: D06M13/282
Filed: 1981-01-13
Granted: 1984-05-15
Abstract: ABSTRACT OF THE INVENTION         An aqueous sizing composition, glass fiber strands having the dried residue of the aqueous sizing composition and processes for producing these articles are provided that enable the production of glass fiber reinforced polymeric materials having improved properties. In addition, improvements are obtained in the processability of using glass fiber roving in the production of sheet molding compound, buld molding compound and thick molding compound.           The sizing composition, sized glass fiber strands, processes, reinforced polymeric materials and improvements of this invention emanate from the use of epoxidized polar thermoplastic copolymers in aqueous sizing compositions that are substantially insoluble in the matrix polymer.         The aqueous sizing composition has one or more cross-linkable film formers, one or more organosilane coupling agents and about 3 to about 12 weight percent of the aqueous sizing composition of the epoxidized polar thermoplastic copolymer. The epoxy copolymer has about 3 to about 10 parts of epoxy functionality per 10 parts of the functionality of the other polymeric material in the copolymer. Also the epoxy copolymer has a glass transition temperature (Tg) of from ambient temperature to about 50°C.           The sizing composition can also have additional additives like lubricants, plasticizers, emulsifiers, urea formaldehyde condensates, and the like. The aqueous sizing composition is applied to glass fibers during their formation, and the sized glass fibers are gathered into strands and dried. A plurality of the dried, sized glass fiber strands are gathered, dried and collected for use as reinforcement in polymeric materials.
Patent CA-1140372-A (CA)
Inventor: BRADLEY DAVID E
IPC: B23D1/24
Filed: 1981-01-21
Granted: 1983-02-01
Abstract: Abstract A cutting tool for cutting internally formed beads in welded plastic piping which comprises a shaft on which is mounted a helical cutting blade.  Forward of the cutting blade is a grapnel to retrieve the cutting bead.            In use, the tool is inserted down the bore of a pipe section until the leading edge of the cutting blade abutts the bead.  The blade is forced into the bead by the pushing of the tool and then withdrawn from the bore of the pipe.  The grapnel engages the cut bead which is withdrawn with the tool.
Patent CA-1161739-A (CA)
Inventor: HAGEN KARL
IPC: B32B15/08
Filed: 1981-02-04
Granted: 1984-02-07
Abstract: DUCTILE COMPOSITE MATERIAL AND   PROCESS FOR ITS MANUFACTURE                Abstract of the Disclosure A laminate of a cold worked thermoplastic inside layer covered with aluminum foil and a process for making the laminate.  The laminates are useful for production of deepdrawn parts and intrusion molded parts and as cans, boxes, cups and shells such as condenser shells or shell casings for hunting or practice ammunition.
Patent CA-1145315-A (CA)
Inventor: KULLE LEE K
IPC: F16K7/06
Filed: 1981-02-04
Granted: 1983-04-26
Abstract: ABSTRACT OF THE DISCLOSURE           A flow regulating device and specifically an improved roller clamp with a length of conduit exhibiting low compression set properties disposed therein.  The clamp includes an elongated box-like body having a fluid inlet at one end with a fluid outlet at the opposite end which are joined by the conduit to provide a flow lumen through the clamp.  The roller is captured within a track in the body to selectively compress or release the conduit towards or away from a compression surface disposed at an angular variance to the track.  The flow rate is regu-lated by appropriately positioning the roller.  The conduit is captured within the body so as to be unaffected by external pulling or tugging forces.
Patent CA-1152228-A (CA)
Inventor: LAUTERBACH CHRISTL
IPC: H05B33/26
Filed: 1981-03-25
Granted: 1983-08-16
Abstract: ABSTRACT OF THE DISCLOSURE          A contact structure on indium-containing III-V semiconductor material is comprised of a four layer sequence consisting of an indium layer in direct contact with the semiconductor material, a zinc layer in contact with the indium layer, a chromium-nickel or chromium or palladium or platinum layer in contact with the zinc layer and a gold layer for external contacting with a lead.  An exemplary embodiment of such contact structure exhibits specific contact resistance ranging between about 10-4 and 10-5 ohm ? cm2.
Patent CA-1150131-A (CA)
Inventor: CIANCI JAMES P
IPC: G09B23/28
Filed: 1981-04-13
Granted: 1983-07-19
Abstract: BODY CHANNEL SIMULATION DEVICE     ABSTRACT OF THE DISCLOSURE   A device for simulating catheterization in a body chan-nel of a patient comprising, a catheter having an elongated shaft, an inflation balloon on -the shaft, and an inflation lumen extend ing along the shaft and communicating with the balloon.  The device has a sleeve of flexible material defining a cavity to receive the portion of the shaft containing the balloon, with the sleeve having a sufficiently small width such that the bal-loon contacts walls of the sleeve when inflated.  The sleeve has a line of weakness which ruptures when the balloon is suffi-ciently inflated unless relieved of pressure prior to rupture of the sleeve.
Patent CA-1163049-A (CA)
Inventor: HAHN KLAUS
IPC: C08G18/54
Filed: 1981-05-14
Granted: 1984-02-28
Abstract: Abstract of the Disclosure:  A process for the prepara-tion of polyurethane foams modified with melamine-formaldehyde precondensates, in which the preconden-sates employed are storage-stable, aqueous 40-85% strength by weight resin solutions which are obtained by condensing melamine with formaldehyde in a molar ratio of 1:1.1 - 1.75 in aqueous solution at a pH which, at least periodically, is above 8, and at from 60 to 130°C, until one part by volume of resin solution can be diluted with from 0.5 to 4 parts by volume of water at 20°C without causing a persisting cloudiness.
Patent CA-1176730-A (CA)
Inventor: SAND-PEDERSEN JENS O
IPC: F23N5/20
Filed: 1981-06-03
Granted: 1984-10-23
Abstract: ABSTRACT OF THE DISCLOSURE           The present invention relates to a control circuit for a firing installation comprising at least one fuel release element switched on by a switching-on element, ignition means, a flame monitor with a flame relay and an electronic safety timer which, in the course of the programme, successively operates in two sequences, during the first sequence at the end of the safety period actuates a preparatory apparatus with the aid of which the actuation of the fuel release element is prepared, commences its second sequence with switching on of the fuel release element and, with the aid of switching off apparatus, effects switching off of the fuel release element at the end of the safety period if the flame relay has failed to respond.