baber/WOPTO huggingface dataset:
Patent CA-1046800-A (CA)
Inventor: OBERHOLTZER JAMES R
IPC: C22C38/12
Filed: 1975-01-24
Granted: 1979-01-23
Abstract: ABSTRACT A low alloy temper resistant saw blade steel containing in weight percent about 0.90-1.4% carbon, 0.8-2% silicon, 0.5-1.5% vanadium, 1-3% combined tungsten and molybdenum with molybdenum replacing tungsten in the proportion of 0.5% molybdenum for 1% tungsten and preferably replacing all of the tungsten, and the balance iron plus incidental impurities having a minimum hardness of Rc 60 in its hardened and tempered condition and which is not softened by exposure to temperatures of about 600°F. A process for preparing the steel is also disclosed in which the alloy is hot worked to strip which is then austenitized, isothermally transformed at least in part to bainite, and subjected to a subcritical anneal to form a pinpoint carbide structure with hardness reduced sufficiently to facilitate fabrication of the saw teeth.  After the saw teeth are formed and set, the heat treatment is completed by flame hardening the teeth and tempering so that the teeth are at a minimum hardness of about Rc 60 and do not soften when exposed to temperatures of about 600°F.
Patent CA-1041023-A (CA)
Inventor: TYBUS GERD
IPC: B01D59/18
Filed: 1975-04-16
Granted: 1978-10-24
Abstract: ABSTRACT OF THE DISCLOSURE:            Gas separation nozzles are produced by machining the nozzle parts, such as a holding body and separation elements by moving sectional material, for example, prefabricated sectional steel or aluminum alloy rods through a high precision sliding guide path past a shaving tool, whereby the workpiece is pressed against supporting and retaining surfaces of the guide path at least at three points and a shaving tool is applied to the moving workpiece in an area defined by said three points so that the tool is effective as close as possible to the pressure applying points or areas.  At least two separation elements are supported in a dovetail groove of a holding body so that nozzle edges of the elements extend into a gas deflection groove in the holding body.  Where four separation elements are held in a common dovetail groove of the holding body, two of the four elements are provided with a gas deflection groove extending along its respective nozzle edge.  The arrangement is such that the nozzle edges  of one pair of separation elements extend into the gas deflection groove of the other pair and vice versa.  The holding body may be provided with assembly means such as further dovetail grooves and tongues for assemblying a plurality of such separation nozzles into an integral structure.
Patent CA-1045459-A (CA)
Title: Flattened spherical shot
Inventor: SISTINO ALPHONSE J
IPC: F42B7/04
Filed: 1975-06-03
Granted: 1979-01-02
Abstract: ABSTRACT       Shot for use in ammunition with each shot pellet having six equally spaced, substantially flattened faces joined by spherical portions which can be randomly packed in a container with a density about 14 per cent greater than the packing density obtained with standard spherical shot of the same weight.
Patent CA-1056944-A (CA)
Title: Method of detecting alterations in signals corresponding to the read-out of a data carrier and system for implementing such a method
Inventor: OPRANDI PIERRE
IPC: H04N5/94
Filed: 1975-07-22
Granted: 1979-06-19
Abstract: ABSTRACT OF THE DISCLOSURE:     The present invention relates to a method of detecting alterations in the signal furnished by the head used to read-out information recorded upon a data carrier.  The read-out signal is converted by two voltage comparators whose thresholds are respectively lower and higher than the mean peak amplitude of the carrier signal in two squarewave signals which, applied to an assembly of monostable switching circuits associated with logic gates, are responsible for the production of a defect signal capable of controlling a defect correcting cir-cuit, which is fed with the read-out signal.
Patent CA-1064807-A (CA)
Inventor: HADLEY THOMAS A
IPC: D04H1/66
Filed: 1975-08-12
Granted: 1979-10-23
Abstract: ABSTRACT OF THE DISCLOSURE     Outer plies of cellulosic tissue and an intermediate, isotropic, reinforcing textile length fiber web are attached together by a pattern of adhesive lines with the fibers of the web embedded in the adhesive lines, to provide a tissue fiber laminate nonwoven fabric which is flexible and conformable with adequate strength particularly in the cross direction so as to be suitable for use as a textile substitute. The process for manufacturing this nonwoven fabric in a single pass involves printing the adhesive on one web of cellulosic tissue in a clearly defined fine line pattern, laying the fiber web on the adhesive bearing surface of the tissue web, juxtaposing a second cellulosic tissue web on the fiber web, and hot calendering the three layer composite so as to force the adhesive through the fiber web into the second tissue web while bonding the fibers of reinforcing web in place, the amount, viscosity and line pattern of the adhesive being such as to obtain ply attachment and a soft, flexible, conformable fabric rather than a stiff, boardy, sleazy material which can result from overbonding.
Patent CA-1042818-A (CA)
Inventor: BARTOS JOSEPH J
IPC: E02B15/04
Filed: 1975-09-10
Granted: 1978-11-21
Abstract: OIL CLEAN-UP APPARATUS              ABSTRACT OF THE DISCLOSURE             Apparatus for removing an oil spill from the surface of a harbour includes a vessel fitted with sweeping booms each carrying a number of motor driven feed augers which are vertically spaced apart to extend generally para-llel to the water surface on which a layer of oil is floating. A buoyant sumo box is mounted for vertical sliding movement near the inner end of each boom and pumping equipment connects this box to a holding tank aboard the vessel.  As the vessel is moved forward through an oil slick, the boom sweeps the oil towards the vessel with this sweeping action being augmented by the driving action of the rotating augers. The sump boxes float freely with respect to the booms so as to maintain a position which will best receive the swept and driven oil for transfer to the holding tank.
Patent CA-1049248-A (CA)
Title: Ice release agents
Inventor: BYRNES PETER G
IPC: C09K3/18
Filed: 1975-11-10
Granted: 1979-02-27
Abstract: ICE RELEASE AGENTS                 ABSTRACT OF THE DISCLOSURE      Ice release agents are formulated from alkylene glycols having two to three carbon atoms, water, an alkanol and a salt of crosslinked polyacrylic acid.     S P E C I F I C A T I O N
Patent CA-1083782-A (CA)
Inventor: MITCHELL LAWRENCE C
IPC: C01D1/28
Filed: 1975-12-11
Granted: 1980-08-19
Abstract: ABSTRACT OF THE DISCLOSURE        A method of reducing ohlorate in an admixture containing aqueous alkali metal hydroxide solution and chlorate, which method comprises contacting said mixture with hydrogen at a temperature above 100°C and elevated pressure in the presence of a catalytic amount of a ruthenium catalyst.
Patent CA-1056764-A (CA)
Inventor: FAUL WOLFGANG
IPC: C25B1/30
Filed: 1976-01-14
Granted: 1979-06-19
Abstract: ABSTRACT OF THE DISCLOSURE Hydrogen peroxide is produced by an improved process in which an aqueous solution of alkali metal hydroxide and hydroperoxide is formed by electrolytic decomposition of aqueous alkali metal hydroxide solution with concurrent feeding of oxygen through a gas electrode cathode.  The solution of alkali metal hydroxide and hydroperoxide is treated with alkaline earth metal hydroxide to form alkaline earth metal hydroperoxide which is repre-cipitated as alkaline earth metal carbonate by contact with carbon dioxide and with the simultaneous formation of hydrogen peroxide.  The process functions in good yield and employs readily available raw materials without giving rise to harmful by-products.
Patent CA-1100090-A (CA)
Inventor: GALE STEPHEN B
IPC: C02F1/463
Filed: 1976-01-26
Granted: 1981-04-28
Abstract: ABSTRACT OF THE DISCLOSURE    Contaminating ions are removed from an aqueous medium, e.g. hexavalent chromium ions from cooling tower waters, by an electrochemical method which includes formation of an insoluble iron compound or complex of the contaminant ion, utilizing an anode of iron, iron alloy or insoluble iron compound.  The electrodes are treated with an acid solution at regular intervals to remove any substances formed on or lodged between the electrodes.          The electrolytic cell includes a plurality of closely spaced generally parallel plate electrodes, with e ectric potential applied to the two end electrodes, and an electrode near each end electrode is of a size protecting the end electrode  from flux field effects.
Patent CA-1039718-A (CA)
Inventor: SCHIWECK HUBERT
IPC: A23L27/30
Filed: 1976-05-04
Granted: 1978-10-03
Abstract: ABSTRACT OF THE DISCLOSURE          Glucopyranosido-1,6-mannitol of the formula   is prepared by catalytically hydrogenating a neutral aqueous solution of isomaltulose having a dry matter content in excess of 50% by weight, and recovering the desired product by fractional crystallization.  Glucopyranosido-1,6-mannitol is non-splitable   and non-resorbable and hence is suitable for use as a glucose substitute for diabetics.
Patent CA-1047986-A (CA)
Inventor: LATHAM OTIS D
IPC: A45C11/24
Filed: 1976-05-21
Granted: 1979-02-06
Abstract: ABSTRACT OF THE DISCLOSURE        A belt for holding of surveyors' tacks which may be worn about the ankle of the user.  The belt is fitted at each end with snap fasteners, with a mid-section shaped as a cylinder and fitted with vertical holes through the top of the mid-section, in the worn position of the belt.  Surveyors' tacks are indi-vidually located in each hole with the tack points protected inside the belt.  The anklet belt enables a surveyor to readily grasp a tack from the belt, when kneeling, and fasten the tack at a surveyed point.
Patent CA-1040009-A (CA)
Inventor: BRUNING WILLIAM E
IPC: B61D17/18
Filed: 1976-06-07
Granted: 1978-10-10
Abstract: GRAIN DOOR AND METHOD OF INSTALLATION            ABSTRACT OF DISCLOSURE:         A grain door for installation across the doorway of a boxcar wherein a generally rectangular relatively stiff panel equipped with a plurality of horizontal straps is equipped with diagonal fold lines extending from the intersection of the side flap and floor flap fold lines to permit folding the side flaps and the floor flaps ends into overlying relation with the remainder of said panel to facilitate anchoring the straps to the doorway posts.
Patent CA-1047727-A (CA)
Inventor: OMHOLT RAY E
IPC: E04F15/22
Filed: 1976-06-29
Granted: 1979-02-06
Abstract: Abstract of the Disclosure A resiliently cushioned adhesive applied restricted growth bridging wood flooring system is provided.  The wood floor members are held in place by spaced ridges of elastomeric cush-ioning adhesive material between the wood flooring members and the supporting base.  The elastomeric cushioning adhesive mater-ial has sufficient gripping and tensile strength to overcome normal horizontal and vertical expansive buckling forces which can be generated by an increased moisture content within the wood flooring members during periods of normal atmospheric moisture changes.  The elastomeric cushioning adhesive material also provide substantial resilient cushioned support under the wood flooring members, absorbs impact sounds between floors of multistory buildings, and provides a substantially level floor even though the supporting base may be non-planar.
Patent CA-1070171-A (CA)
Inventor: SCHEFFEL HERBERT
IPC: B61F5/30
Filed: 1976-07-13
Granted: 1980-01-22
Abstract: A B S T R A C T            A load-carrying railway truck having a longitudinal axis in its direction of travel and including at least one load-bearing member for supporting a load; a pair of live wheelsets supporting the load-bearing member, each wheel-set being so mounted in the truck and having such a profile that it is substantially self-steering; means interconnecting the wheelsets to transmit yawing and lateral movements of either wheelset in the opposite sense to the other wheelset; and elastic elements suspending the load to the wheelsets, at least some of the elastic elements having a lateral stiffness in a direction transverse to the longitudinal axis of the truck which is lower than the stiffness provided by them in a direction parallel to the longitudinal axis.
Patent CA-1066185-A (CA)
Inventor: FISHER SIDNEY T
IPC: E21C37/18
Filed: 1976-07-20
Granted: 1979-11-13
Abstract: ABSTRACT           A method of extracting hydrocarbons, energy and other products in situ from an underground coal deposit.  A selected part of the coal deposit is heated by electrical induction to temperatures high enough to effect the destructive distillation of coal.  The gases and liquids so produced are collected.  Next, air or oxygen is injected into the remaining deposit which consists primarily of coke in order to burn it in place.  The hot combustion gases thereby yielded are led to the surface of the deposit to generate energy.  Lastly, the heat remaining underground after the coke has been burned is extracted by injecting water o? steam into the deposit.  The resulting steam is conducted to the surface to drive a steam turbine.  The electrical induction heating is conveniently effected by passing a selected time varying current through a conductive path encompassing that part of the coal deposit to be heated.
Patent CA-1064759-A (CA)
Inventor: WILLIAMS MERL A
IPC: A23K1/20
Filed: 1976-08-18
Granted: 1979-10-23
Abstract: ABSTRACT OF THE DISCLOSURE    Apparatus for preparing animal food pellets wherein cooked mash under atmospheric pressure is forced through a die wherein the mash has been cooked under superatmospheric pressure.  More specifically, the apparatus provides means defining a continuous flow path for mash including conditioning means in said path for cooling said mash under super-atmospheric pressure, means next in said path for tangentially forcing said mash through orifices of a rotating die to form deaerated rods of substantially uniform consistency across successive transverse planes and characterized by the substantial absence of fracture on the lagging side of the ribbon and means next in said path for transversely severing the ribbons to form pellets, said conditioner means being constructed and arranged to confine the mash in a steam atmosphere is the range of about 1 psi to about 25 psi.  The unique pressure cooking of the mash eliminates the operator guesswork of prior art conditioning steps and results in a mash which is dearated and considerably more plastic.
Patent CA-1040513-A (CA)
Inventor: JUILLARD YVES
IPC: D03D47/12
Filed: 1976-09-03
Granted: 1978-10-17
Abstract: A DOUBLE-LAYER WEAVING LOOM     Abstract of the Disclosure In a shuttleless weaving loom of the double layer type, the position of the heald eyes and the relative dis-placement of the harness shafts which carry the eyes are such that, in the bottom position of the lower layers, the center-lines of the segments of the two layers which are located between the rearmost position of the weaving loom and its intermediate position corresponding to the beginning of introduction of the weft threads into the sheds both pass substantially through the pivotal axis of the reed.
Patent CA-1071104-A (CA)
Inventor: HECHT GERALD
IPC: G02C7/04
Filed: 1976-10-06
Granted: 1980-02-05
Abstract: ABSTRACT Ophthalmic solution suitable as an artificial tear material of low viscosity containing a polysaccharide and benzalkonium chloride.
Patent CA-1045818-A (CA)
Inventor: JOHANSSON FOLKE I
IPC: B25D17/11
Filed: 1976-10-08
Granted: 1979-01-09
Abstract: T I T L E                     IMPACT TOOL    ABSTRACT OF THE DISCLOSURE        An impact tool having a vibration damper is disclosed. The vibration damper comprises an envelope which surrounds a working part of the tool and thereby encloses a liquid-like material having damping properties. The liquid-like material may advantageously be enclosed in a bag for easier handling.
Patent CA-1101642-A (CA)
Inventor: FUJISAKI YOSHINORI
IPC: A44B19/42
Filed: 1976-11-17
Granted: 1981-05-26
Abstract: ABSTRACT OF THE DISCLOSURE      A pair of assemblied slide fastener stringers each have a stringer tape and a row of interlocking elements mounted on and along one edge of the stringer tape.  A plu-rality of sliders are slidably mounted on the rows of inter-locking elements, each slider having a head at which the element rows go into and out of the slider in the uncoupled state, and a rear at which the element rows go into and out of the slider in the coupled state.  A plurality of bottom end stops are also slidably mounted on the element rows, each bottom end stop having a slider-like structure comprising a end stop in the uncoupled state, and a rear at which the ele-ment rows go into and out of the bottom end stop in the coupled state.  The sliders alternate with the bottom end stops and have their heads directed in one direction and toward the heads of the bottom end stops.  Alternatively, the sliders are provided in pairs lying head-to-head, and the bottom end stops are also in pairs lying head-to-head, the slider pairs alternating with the end stop pairs.  The invention prevents accidental separation of opposed interlocking elements of the stringers.
Patent CA-1082886-A (CA)
Inventor: HARTMANN ACHIM
IPC: C01B7/03
Filed: 1977-02-07
Granted: 1980-08-05
Abstract: PROCESS FOR RECOVERY OF IRON OXIDE AND CHLORINE FROM DUST PRODUCED IN CHLORINATION OF TITANIFEROUS ORES                      ABSTRACT OF DISCLOSURE      The dust produced in the chlorination of titaniferous ores comprises essentially particulate ferrous chloride plus solid contaminants including coke and various metal chlorides and oxides and is oxidized in successive stages at relatively low temperatures to recover particulate iron oxide and gaseous chlorine.
Patent CA-1142558-A (CA)
Title: Pivot construction for a motor vehicle suspension  system
Inventor: PARKER ROBERT J
IPC: F16C27/06
Filed: 1977-06-28
Granted: 1983-03-08
Abstract: PIVOT CONSTRUCTION FOR A MOTOR   VEHICLE SUSPENSION SYSTEM             ABSTRACT OF THE DISCLOSURE         A pivot construction for a motor vehicle suspension system according to the present disclosure includes a pair of ball studs having shank portions fitted in the eye at the end of a leaf spring. The heads of the ball studs are each enclosed by a cup-shape polyethylene bearing that is retained within a socket.  The sockets for the ball studs are supported by spaced portions of a bifurcated vehicle frame bracket.  A pair of first seals retain lubricant within the bearings and a pair of second seals prevent the entry of contaminates into the spring eye that might corrode the surfaces of the shank portions of the ball studs.
Patent CA-1062964-A (CA)
Inventor: FREDRICK WILLIAM L
IPC: F23N1/02
Filed: 1977-07-15
Granted: 1979-09-25
Abstract: "APPARATUS AND METHODS FOR         ENHANCING COMBUSTIBILITY OF SOLID FUELS"     Abstract of the Disclosure Apparatus and methods are provided for reducing combus-tible particles by heat and abrasion to a condition in which they can be burned completely and without production of objectionable exhaust gases.  Solid combustible particles are carried into an outer chamber of the device by a low pressure transport air stream, with additional air at high pressure and high velocity being introduced into the same chamber in a relation driving the solid particles rapidly and circularly within the outer chamber and about an inner chamber of the device.  Impingement of the particles against one another during such swirling motion, supplemented by partial oxidation of the combustibles, raises the temperature of the particles and reduces their size to form a very highly combustible flowable mass which will burst into flame when contacted by a stream of secondary combustion air.          The combustion air is desirably mixed with the high temperature particle carrying stream at essentially the location of the discussed inner chamber of the device.  The fuel air ratio in the apparatus may be closely controlled to attain optimum com-plete combustion of the particles.  A start-up pilot flame may be provided in the outer chamber to assist in initially raising the temperature in that chamber, and any non-combustible par-ticles may be ejected from the outer chamber through a special ejection outlet.
Patent CA-1107880-A (CA)
Inventor: CHAPLICK ADOLPH M
IPC: C08L101/00
Filed: 1977-09-06
Granted: 1981-08-25
Abstract: Abstract of the Disclosure Stiffening composition and method in which the strength, stiffness and application properties if thermoplastic synthetic polymer resin stiffening material are improved through combination with the resin of controlled proportions of glass microspheres and the composition is applied as a layer in molten condition on the portion if a shoe upper to be stiffened and is hardened by cooling.
Patent CA-1096832-A (CA)
Title: Retroreflector
Inventor: HEASLEY JAMES H
IPC: E01F9/00
Filed: 1977-10-11
Granted: 1981-03-03
Abstract: 747 Comb.                ABSTRACT OF THE DISCLOSURE      A retroreflector of improved efficiency is disclosed comprising, in one form, a light-transmitting sheet adapted in use to be disposed in an angled position such that a normal to the sheet is at an angle of about 5° to about 85° from an incident beam of light.  The sheet has front and back opposed, substantially parallel faces.  The front face is substantially smooth and defines a light-refracting surface.  The back face has a plurality of light-reflecting units.  Each unit comprises three mutually perpendicular surfaces defining a trihedral angle of a rectangular parallelepiped and positioned with respect to the front face that the body diagonal of the rectangular parallelepiped is within an angle of 15° of incident light refracted by the front face.  A multi-sided retroreflective body also is disclosed having at least two retroreflective faces adapted to intercept light.  Each reflective face is tilted in the same general direction about a lower portion angularly away from a vertical plane and is angularly related in a horizontal plane with respect to another vertical plane disposed substantially at right angles to the direction of such light.
Patent CA-1064385-A (CA)
Title: Combustion chamber and thermal vapor stream producing apparatus and method
Inventor: SPERRY JOHN S
IPC: F02G3/00
Filed: 1977-11-10
Granted: 1979-10-16
Abstract: ABSTRACT OF THE DISCLOSURE A new and improved method and apparatus for burning a hydrocarbon fuel for producing a high pressure thermal vapor stream comprising steam and combustion gases for injecting into a subterranean formation for the recovery of liquefi-able minerals therefrom, wherein a high pressure combustion chamber having multiple refractory lined combustion zones of varying diameters is provided for burning a hydrocarbon fuel and pressurized air in predetermined ratios injected into the chamber for producing hot combustion gases essentially free of oxidizing components and solid carbonaceous parti-cles.  The combustion zones are formed by zones of increas-ing diameters up a final zone of decreasing diameter to pro-vide expansion zones which cause turbulence through con-trolled thorough mixing of the air and fuel to facilitate complete combustion.  The high pressure air and fuel is injected into the first of the multiple zones where ignition occurs with a portion of the air injected at or near the point of ignition to further provide turbulence and more complete combustion.