baber/WOPTO huggingface dataset:
Patent CA-1042599-A (CA)
Inventor: WEISMAN MOREY
IPC: C08J9/00
Filed: 1974-02-04
Granted: 1978-11-14
Abstract: DIELECTRICALLY MODIFIED POLYURETHANE             FOAM MATERIAL      Inventor:  Morey Weisman, a citizen of the United States of America and resident of Jamaica, New York ABSTRACT OF THE DISCLOSURE       A modified, flexible polyurethane foam product which incorporates a three-dimensional skeletal network of a thermoplastic additive whose dielectric loss index is greater than the loss index of polyurethane foam to impart to the product an acceptable dielectric heating response in a high-frequency electric field.  The additive in par-ticulate form is introduced into the polyurethane foam-forming reaction mixture, the additive having a gell point which is lower than the temperature level of the exothermic reaction which takes place when the mixture is caused to foam and expand.  The additive is further characterized by a low order of viscosity whereby when rendered molten by the exothermic reaction, the particles are extruded by the expanding urethane mass to create tentacles that interlace the cellular urethane structure to form the skeletal network.
Patent CA-1036980-A (CA)
Title: Hold down device
Inventor: CRIPPEN MONTE D
IPC: C25B9/19
Filed: 1974-06-13
Granted: 1978-08-22
Abstract: HOLD DOWN DEVICE                ABSTRACT OF THE DISCLOSURE    An electrolytic cell which comprises an anode section and a cathode section supported by said anode section is provided with a plurality of hold down devices which serve to maintain the anode and cathode sections in liquid-tight relationship.  The hold down devices positioned on the outer periphery of the cell sections are designed to withstand lateral stresses occasioned by the thermal cycling of the dissimilar parts of the cell without slipping or turning.
Patent CA-1037592-A (CA)
Inventor: BARDWELL FRANCIS G
IPC: G05D17/02
Filed: 1974-11-21
Granted: 1978-08-29
Abstract: ABSTRACT      This disclosure deals with a control circuit for a tool including a motor for turning a rotatable power output shaft of the tool.  A torque measuring device is coupled to the shaft and generates a signal which is a function of the torque output.  The control circuit responds to the torque output and to a reference signal representing a preselected torque, and automatically turns off the motor when the torque output reaches the preselected torque.  Further, the control circuit may cyclically turn the tool on and off at very short time intervals as the preselected torque valve is being ap-proached, in order to reduce the reaction torque felt by an operator of the tool.  In addition, the lengths of the on times in successive cycles may be gradually decreased as the torque output level increases, with the result that the aver-age reaction torque remains substantially constant even though the peak torque output increases.
Patent CA-1041337-A (CA)
Inventor: DENSEN KARL T
IPC: E04F11/18
Filed: 1975-04-11
Granted: 1978-10-31
Abstract: Karl Thure DENSEN             FERNEY-VOLTAIRE/France "TUBULAR FENCE"     ABSTRACT OF THE DISCLOSURE     A fence is assembled from tubular posts and open-ended tubular cross-pieces the ends of which are slidably supported on the posts and selectively secured in one of several discrete positions, for example by engaging transverse slots in the lower face of the cross-pieces on tabs in apertures in the posts. In another arrangement, flaps in the posts are folded in to form apertures slidably receiving ends of the cross-pieces, which are secured by selectively engaging pins in aligned holes in the flaps and cross-pieces. The fence may include a rectangular gate frame formed by folding a suitably cut-out tubular piece.     ---ooo0ooo---
Patent CA-1059413-A (CA)
Inventor: LIGHTFOOT CHARLES L
IPC: G01N33/52
Filed: 1975-04-24
Granted: 1979-07-31
Abstract: ABSTRACT OF THE DISCLOSURE      A multi-layer device suitable for the colorimetric determin-ation of the presence of a particular compound in a test solution is disclosed.  The first layer contains an agent capable of con-centrating the particular compound onto the surface of the layer, when the device is placed in a solution containing the particular compound.  Subsequent reagent layers are incorporated as required to supply reagents, through diffusion, as needed to produce the end result of a color reaction on the first layer.  Barrier layers may be incorporated between reagent layers.      A new colorimetric method for the detection of morphine is also disclosed which may be adapted for use with the multi-layer device.
Patent CA-1064045-A (CA)
Inventor: HABERLEIN HARALD
IPC: C07D301/12
Filed: 1975-07-29
Granted: 1979-10-09
Abstract: PROCESS FOR PREPARING OXIRANE COMPOUNDS      Ethylenically unsaturated hydrocarbons having form 8 to 60 carbon atoms may be epoxidized with high yields by reaction with mixtures of acetic acid and hydrogen peroxide in the pre-sence of liquid, inert, aliphatic chlorinated hydrocarbons ha ving from 1 to 3 carbon atoms, whereof at least one is present in the form of a -CCl3, -CHCl2 or C=Cl2 group.
Patent CA-1072017-A (CA)
Inventor: CHAMBERS DAVID B
IPC: B01D17/04
Filed: 1975-10-14
Granted: 1980-02-19
Abstract: ABSTRACT OF THE DISCLOSURE A method for the removal of oil from an oil in water emulsion which comprises passing the emulsion through a fibrous structure comprising inorganic fibres which, when immersed in the emulsion acquire a positive zeta potential and removing the coalesced oil droplets so formed.
Patent CA-1058828-A (CA)
Inventor: AZUMA TOMISABURO
IPC: C04B7/32
Filed: 1975-11-17
Granted: 1979-07-24
Abstract: ABSTRACT OF THE DISCLOSURE __________________________ A process of producing calcium aluminate monosulfate hydrate by reacting a mixture of a lime component, an alumina component, a calcium sulfate component, and water at a tempera-ture of from about 100°C. to about 200°C.     By the process of this invention, the aimed product having a high purity is obtained at a high yield without need of high temperature for the reaction.  The product obtained is useful as building materials.
Patent CA-1037407-A (CA)
Inventor: ALLOR BERNARD J JR
IPC: B61B10/02
Filed: 1976-01-22
Granted: 1978-08-29
Abstract: CONVEYOR STOP MECHANISM             ABSTRACT            A power and free conveyor has a stop lug on the carrier body adapted to abut a stop member movable into the path of the carrier along the conveyor track to arrest movement of the carrier, the stop member serving to disengage the driving dog from the power chain prior to abutting the stop lug.  The stop lug is spaced rearwardly of the driving dog a distance exceeding rebound of the carrier whereby accidental re-engage-ment of the driving dog with the power chain is avoided. The stop log is positioned to engage the power chain pusher lug on a decline in the conveyor system should the hold back dog fail to do so, thereby preventing a runaway.
Patent CA-1076368-A (CA)
Title: Upgrading the nickel content from low grade nickel lateritic iron ores by a combined process of segregation and magnetic separation or flotation
Inventor: NESTORIDIS ANTONIOS
IPC: C22B23/00
Filed: 1976-04-02
Granted: 1980-04-29
Abstract: ABSTRACT OF THE DISCLOSURE             The present invention provides a process of upgrading the nickel from nickel lateritic iron ore with iron content over 10%, silica content over 25% and nickel content of at least 0.5% which process comprises thoroughly mixing the ground ore with calcium carbonate, calcium sulphate and coke, spraying the mixture with a solution of sodium chloride, drying the mixture, heating the mixture at a temperature not exceeding 1050° C, for a period of time up to 90 minutes, roasting the mixture at the above temperature for a sufficient period of time to convert all nickel in the ore to metallic state in a neutral or even slightly reducing atmosphere, grinding the roasted mixture in an aqueous medium, and adjusting the density of the pulp obtained for a subsequent flotation  or by magnetic separation process to produce a concentrate.
Patent CA-1045584-A (CA)
Inventor: MURRAY DONALD L
IPC: B07B4/02
Filed: 1976-06-07
Granted: 1979-01-02
Abstract: PNEUMATIC CLASSIFIER FOR REFUSE MATERIAL      WITH DOUBLE VORTEX AIRFLOW                 ABSTRACT OF THE DISCLOSURE         An apparatus and operation is disclosed in which light solids material such as shredded paper passes from an upper end of a column and heavier material such as glass and metal particles drop from a lower end of the column.  The column includes an air locked feed chute having a downwardly inclined material feeding surface, that opens intermediate the column ends into a stream of air moving upwardly in the column, for admitting mixed light and heavy particles of refuse material to the air stream. A zone of expanded volume is provided at the level where the column and the chute come together and this zone extends upwardly from the material feeding surface and terminates at a level below the upper end of the column where column cross section area is less than beneath the expanded zone.  Air drawn upwardly through the column from the lower end and reaching the expanded zone, turns toward the material feeding chute and forms a recircu-lation zone, herein called a first vortex, within the zone about an axis parallel to and above the intersection of the material feeding surface of the chute with wall structure of the column, before resuming upward flow.  A baffle is pivot-ally journalled in the lower end of the column to pivot about an axis beneath and parallel to the horizontal intersection of the chute with a flat wall structure of the column.  The baffle is supported to be pivotable within a range of angu-larly disposed positions transverse to both a horizontal and a vertical plane through the pivotal axis.  Within such range of positions air passing upwardly and over the baffle will be turned to form a second recirculation zone, herein called a second vortex, about and parallel to and beneath the first vortex and pivoting the baffle provides a control of the air flow characteristics created and the separation characteris-tics of material introduced through the chute.
Patent CA-1045110-A (CA)
Inventor: MORFITT JOHN B
IPC: B66D1/26
Filed: 1976-08-16
Granted: 1978-12-26
Abstract: TITLE          SMALL, VARIABLE-SPEED YARDER          ABSTRACT OF THE DISCLOSURE         A small, variable-speed yarder is provided with main, haulback and slack-pulling drums, each containing a planetary drive transmission with provisions for dual power inputs.  A variable interlock mechanism controls the relative speed of the haulback drum to the two inhaul drums (main and slack-pulling) and a differential drive mechanism controls the relative speed and/or direction of the inhaul drums.
Patent CA-1075502-A (CA)
Inventor: TURILLON PIERRE P
IPC: B22F7/04
Filed: 1976-10-14
Granted: 1980-04-15
Abstract: Abstract of the Disclosure A method for compressing and sintering metal powder into solid form for use as metal coatings and structures.     Metal powder is enclosed in a pressure-resistant container in contact with a metal bladder.  The bladder contains a heat-decomposable substance which upon heating provides gaseous pressure to expand the bladder and compress and sinter the metal powder.  The compressed and sintered metal powder can be used as a metal coating upon a metal surface or as a solid metal article by removal of the surface on which the metal powder was formed.
Patent CA-1043298-A (CA)
Inventor: SHEPHERD CHARLES G
IPC: A47F5/10
Filed: 1976-11-16
Granted: 1978-11-28
Abstract: ABSTRACT     The invention provides an improved display gondola which can be both readily assembled from basic parts and fully dismantled by unskilled personnel; which requires no separate fasteners in the assembly; and which can support both light duty and heavy duty shelves.
Patent CA-1084718-A (CA)
Inventor: SULLIVAN PATRICK B
IPC: C22B3/26
Filed: 1976-11-29
Granted: 1980-09-02
Abstract: SEPARATION OF NICKEL FROM COBALT      WITH CYCLIC KETONES        ABSTRACT OF THE DISCLOSURE     The separation of cobalt from nickel is enhanced by extracting aqueous solutions of the respective thiocyanates with a cyclic ketone, preferably isophorone.             S P E C I F I C A T I O N
Patent CA-1073721-A (CA)
Title: Element pour la construction de joints de retrait ou de dilatation et element composite obtenu avec cet element
Inventor: MOOT WILLEM H
IPC: C07D309/08
Filed: 1976-12-24
Granted: 1980-03-18
Abstract: Arrangement pour la construction d'un joint de dilatation, cet arrangement comprenant au moins un élément de construction du type formé par une assise dont la moitié supérieure est garnie d'éléments d'ancrage, une dalle recouvrant ledit élément de construction dont les barres d'attente sont incorporées dans cette dalle qui présente une rainure dans sa surface supérieure située au-dessus de l'élément de construction.  Cet arrangement est caractérisé en ce qu'il comprend au moins un élément composite formé par au moins deux desdits éléments de construction qui sont, chacun, constitués par une assise mince en un matériau présentant une grande résistance à la traction et en ce que lesdits éléments de construction sont placés l'un derrière l'autre de telle manière que leurs barres d'attente soient disposées en quinconce, ces éléments étant mutuellement solidarisés par un élément de liaison formé par au moins un longeron par rangée de barres d'attente.
Patent CA-1045532-A (CA)
Inventor: MAIOCCHI LUIGI
IPC: B60C9/28
Filed: 1977-01-04
Granted: 1979-01-02
Abstract: IMPROVED RADIAL TIRE FOR MOTOR VEHICLES                  Abstract of the Disclosure A pneumatic tire having a radial carcass is provided with a reinforcing structure between the carcass and tread having first and second layers of metallic cords having an ultimate elongation of about 3%.  The cords of the first and second layers are dis-posed parallel to each other and at angles of about 5° to about 30° with the axis of the tire body with the cords in one layer crossing the cords of the other layer.  A third layer of metallic cords having an ultimate elongation of from about 4% to about 8% is disposed radially outwardly over the first two layers.  The cords in the third layer are wound about the carcass in a plane which is substantially parallel to the longitudinal direction of the tire.  The resulting assembly of layers provides a reinforcing structure which is adapted to withstand the tension stresses exerted on tires used on heavy vehicles such as buses and trucks even at high speed, giving also high steering characteristics to the tire.
Patent CA-1053563-A (CA)
Inventor: MENEGAZ DENIS A
IPC: B01J8/06
Filed: 1977-01-11
Granted: 1979-05-01
Abstract: FURNACE WITH PLENUM ARCHES                Abstract of the Disclosure An improved furnace design for carrying out the catalytic steam reforming of hydrocarbons, including an air delivery and burner system which extends across the top of the furnace.  The air delivery system includes a plurality of air ducts each forming a plenum arch, with the arches being suspended between their respective ends as they span the top of the furnace.  Burners, for providing heat to the radiant section of the furnace, are spaced within each of such arches and extend into the furnace.  Further, the plenum arches provide a supporting structure for the insula-tion forming the top the radiant section of the furnace.                             -I-
Patent CA-1074430-A (CA)
Inventor: MERRY J BRADFORD
IPC: G02F1/33
Filed: 1977-02-09
Granted: 1980-03-25
Abstract: MULTI-COLOR ACOUSTOOPTIC DEFLECTOR                   Abstract of the Disclosure A method and device for deflecting a plurality of optical wavelengths impinging on an acoustooptic cell, which exhibits an anisotropic diffraction mode, to form a composite output beam by generating in the cell a variable frequency acoustic shear wave having a frequency component associated with each optical wavelength.  Each acoustic shear wave component has (1) a center frequency approximately equal to the inflection point frequency of the respective optical wavelength, (2) a bandwidth chosen such that the diffracted light of each optical wave-length outside the composite output beam is a predetermined amount less intense than the diffracted light of each optical wavelength within the composite beam and (3) minimum and maximum frequencies such that the angles of deflection of light of each wavelength are substantially equal.
Patent CA-1095790-A (CA)
Inventor: PRATT GEORGE W JR
IPC: H01T13/20
Filed: 1977-03-03
Granted: 1981-02-17
Abstract: ABSTRACT OF THE DISCLOSURE        A spark plug wherein corona discharge is employed to create a long arc and to determine, in part, the path of the arc, electrodes of the spark plug being shaped, oriented and positioned to create an arc of desired length, orientation and at a desired location as well as to effect electromagnetic interaction between electric current in the arc and the current in at least one of the electrodes to provide a force on the arc which acts in consort with the electrode shapes, positions and orientations to control its spatial behavior, the electrode configuration being further selected so that ionized species in the flame or ignited fuel. are subjected to a high electric field over a substan-tial volume.
Patent CA-1056279-A (CA)
Inventor: RAISBECK WESLEY P
IPC: A01F29/06
Filed: 1977-03-29
Granted: 1979-06-12
Abstract: HARVESTER CUTTERHEAD               Abstract of the Disclosure A forage harvester has a cylinder type cutterhead that in-cludes a hollow cylindrical drum having a solid cylindrical peripheral wall and a pair of radial end plates to which a pair of axial, stub shafts are attached.  Welded to the outside of the drum are a relatively large number of knife support members that are formed of relatively short sections of angle iron and extend parallel to the cutterhead axis.  The support members are arranged in circumferential rows and are disposed at equal angular inter-vals, the support members in one row being angularly offset and relatively closely spaced from the support members in the adjacent row.  Both edges of the support members are welded to the drum, so that the leading side of the support member is inclinded out-wardly and rearwardly relative to the direction of rotation and functions as a deflector for crop material.  The other exterior surface of each support member is flat, and a flat, relatively short knife is mounted on the flat surface of each support member, so that the knives are also disposed in circumferential rows.          Each knife is bolted on to the support member and has a cutting edge along its leading edge at the cutterhead periphery, the ends of the knives in one row slightly overlapping the ends of the knives in the adjacent row, so that the knife cutting edges conjunctively generate a cylinder as the cutterhead rotates.
Patent CA-1070970-A (CA)
Inventor: KAUFMANN JOHN H
IPC: E04D13/00
Filed: 1977-05-10
Granted: 1980-02-05
Abstract: ROOF COATING COMPOSITION & CONSTRUCTION               ABSTRACT OF THE DISCLOSURE           A roof having an insulating blanket of plastic foam covered by a protective sheath made up of a shell of reinforced concrete covered by a weather-impervious rubbery textured membrane.  The membrane and the shell are married together in the sheath, the shell  providing load bearing strength and the membrane protecting the shell and preserving its properties. The shell adheres tenacious-ly to the insulating blanket and the membrane to the shell.         In a preferred construction, the sheath forms a protective bonnet having a girdle surrounding the eaves and verge further anchoring the roof covering to the superstructure of the building.  Shingles of special construction prefer-ably make up the insulating blanket.  Special cement and latex binder compositions are disclosed for the shell and membrane respectively.
Patent CA-1074789-A (CA)
Inventor: ISHII SHINZO
IPC: C07H15/244
Filed: 1977-07-04
Granted: 1980-04-01
Abstract: ABSTRACT OF THE DISCLOSURE     Fortimicin A is isolated and purified from a solution containing Fortimicin A and other co-produced antibiotic factors by passing the solution through a column of an acidic cation-exchange resin and thereafter eluting out Fortimicin A under controlled conditions.
Patent CA-1043506-A (CA)
Title: Modular swimming pool deck panel
Inventor: WITTE DONALD H
IPC: A47K3/022
Filed: 1977-07-26
Granted: 1978-12-05
Abstract: ABSTRACT OF THE DISCLOSURE           A swimming pool has sidewalls and a deck constructed from a series of prefabricated modular panels connected at the ends to enclose the interior of the pool.  The panels are preferably formed of foamed synthetic resinous composition and of a limited member of configurations or modules which are interchangeably adapted for use in forming pools having a plurality of shapes, e.g. a straight panel, a concave curved panel and a convex curved panel.  Each deck module may comprise a tongue and groove interlock structure.  The inner periphery of the deck is adapted to be supported on wall panels preferably on an integrally formed flange of the wall panel.  The deck is arranged, in a preferred embodiment, to be interlocked into a unitary structure with the wall modules by means of braces which are adapted to clamp the depending flanges or extensions of two adjoining deck modules as well as those of two adjoining wall modules.  A coping may be attached to the top edge of the panels and may comprise an extension of the deck surrounding the periphery of the pool.
Patent CA-1107157-A (CA)
Inventor: DUNCAN GARY L
IPC: C09J7/35
Filed: 1977-08-08
Granted: 1981-08-18
Abstract: A single-ply polyolefin film coated on one side with a heat sealable acrylic-based interpolymer consisting essentially or an alpha-beta monoethylenically unsaturated carboxylic acid and neutral monomer esters comprising an alkyl acrylate and an alkyl methacrylate ester or mixtures thereof, and on the other side with a heat sealable polyvinylidene chloride-based multi-polymer is useful in diverse packaging applications.
Patent CA-1037623-A (CA)
Inventor: MCMURRAY DAVID C
IPC: B66B1/26
Filed: 1977-09-13
Granted: 1978-08-29
Abstract: HYDRAULIC ELEVATOR DRIVE SYSTEM                 ABSTRACT OF THE DISCLOSURE         A hydraulic elevator drive system utilizes an elevator car speed signal and a commanded velocity signal to provide an electrical error signal and controls the operation of a fluid control regulating the fluid flow between a hydraulic actuator which moves the car, a hydraulic pump and a fluid reservoir.  The fluid control includes a combined check and lowering valve and a by-pass valve selectively operated by a common control element including a dynamically operated control piston responding to the error signal.  Another check valve couples the fluid pump to the fluid control while a pair of manually preset control valves regulate the supply of fluid to the control piston for providing pre-established acceleration limitations to the elevator car.
Patent CA-1075921-A (CA)
Inventor: ZUR WALTER J
IPC: A44C7/00
Filed: 1977-11-24
Granted: 1980-04-22
Abstract: ABSTRACT OF THE DISCLOSURE        An earring has first and second semiannular parts pivotally affixed to each other at a corresponding end of each whereby when closed the parts form an annular member.  A first arm extends inwardly from the opposite end of the first part at approximately 60° therewith and has a pin extending therefrom perpendicularly thereto toward the second part.  A notch is formed in the pin in the area of the free end thereof.  A second arm extends inwardly from the opposite end of the second part at approximately 60° therewith and has a bore therein for accommodating the pin whereby when the pin is passed into a pierced ear lobe and into the bore of the second arm, the pin is releasably locked to the second arm via the notch of the pin thereby releasably locking the first and second parts together to form an annular member.