baber/WOPTO huggingface dataset:
Patent CA-1111781-A (CA)
Inventor: BROADHURST THOMAS E
IPC: C10G31/00
Filed: 1978-02-14
Granted: 1981-11-03
Abstract: ABSTRACT OF THE DISCLOSURE Particles of solid wax are separated from a slurry comprising said wax particlesand a hydrocarbon oil by filtering the slurry through a cloth filter medium. It has been found that using, as the filter medium, a needled-felt cloth fabricated from fibers fusible by means of an open flame and having a singed surface on which the wax is collected results in an unexpected reduction in filter cloth blinding thereby yielding up to 30% increased throughput through the filter cloth and greatly reducing the frequency of washing the filter cloth.The cloth is further characterized in that it has a permeability to air in excess of about 3 cubic feet per minute per square foot of cloth surface at a differential pressure of 0.5 inches of water, a root mean square surface roughness in excess of 500 rms microinches and a fouling factor in excess of about 75%.  This improved process has been found to be particularly useful for separating wax particles from a dewaxed lube oil slurry.
Patent CA-1123174-A (CA)
Inventor: COLLIN PER H
IPC: C21C1/02
Filed: 1978-04-26
Granted: 1982-05-11
Abstract: Abstract A process for removing sulphur from crude iron, comprising:  bring-ing an adjusted flow of crude iron at a high temperature into contact with CaO by bringing the crude iron to flow through a bed of granules of CaO-con-taining material of about the same temperature and of such depth that the ?rude iron leaving the bottom of the bed has the desired low sulphur content, regenerating CaS formed hereby in the bed to CaO by bringing an O2- and/or SO2-containing gas to flow through the bed, and recovering the sulphur and an adjusted fraction of SO2 in the gas flow from the regenerating operation, the residual gas flow being utilized for regeneration as above after introducing necessary oxygen.
Patent CA-1199800-A (CA)
Inventor: WOODS DONALD M
IPC: A01D34/416
Filed: 1978-05-15
Granted: 1986-01-28
Abstract: ABSTRACT      An apparatus, such as an edger, trimmer or lawnmower, for cutting vegetation using a flexible non-metallic line member extending into a cutting plane from a rotating head (e.g., U.S. 3,708,967, 3,826,068, 3,859,776).  At the user's signal during cutting, the line member is fed to a certain discrete length (2 inches) from the rotating head under direct mechanical control (no free wheeling).  Then the line member is automatically relocked within the head.
Patent CA-1101772-A (CA)
Inventor: FANSELOW DAN L
IPC: A61N5/00
Filed: 1978-05-23
Granted: 1981-05-26
Abstract: ABSTRACT           An integrating, reusable device for monitoring exposure to actinic radiation is disclosed.  The device comprises a substrate having deposited thereon at least one photochromic aziridine compound which is sealed in an oxygen barrier to stabilize the color developed by the aziridine compound in response to actinio radiation.  The device includes a spectral response shaping filter to trans-mit only actinic radiation of the type being monitored,  A color standard is also provided with which to compare the color developed by the aziridine compound.
Patent CA-1084879-A (CA)
Inventor: BALFANZ ROBERT W
IPC: B65D83/14
Filed: 1978-05-26
Granted: 1980-09-02
Abstract: ABSTRACT OF THE DISCLOSURE         An overcap for engagement with the end of a cylindrical metal container, such as an aerosol container. The overcap has an enclosure portion and a circular lower edge portion for engaging the container.  The lower edge portion is characterized by a radially inwardly extending annular ring at the lower edge which has an inner diameter less than the outer diameter of the snap bead which is formed in a dome of the container, a plurality of circumferentially spaced, crushable radial ribs extending outwardly from the annular ring sufficiently to interact with the container doubleseam when the annular ring is first snapped over the snap bead to "size" the overcap for engagement with the container, and a doubleseam-engaging flange extending radially outwardly from the enclosure and spaced above the annular ring in an axial direction by a distance about equal to the axial distance between the top of the doubleseam and the undercut which is formed in the container dome duct below the snap bead.
Patent CA-1116741-A (CA)
Inventor: GLENN WILLIAM E
IPC: G10K11/34
Filed: 1978-06-12
Granted: 1982-01-19
Abstract: ABSTRACT OF THE DISCLOSURE           The disclosure is directed to an apparatus for imaging a body, such as an ultrasonic imaging system.  In the disclosed apparatus, means are provided for transmitting energy, such as ultrasound energy, into the body.  A transducer is provided for converting energy reflected from the body, typically ultrasound echoes, into electrical signals.  The transducer, which is divided into a plurality of defined segments, such as concentric annular segments surrounding a central circular segment, is utilized for both transmitting and receiving.  A plurality of register devices are provided, preferably analog registers of the charge-transfer type.  The input of each of the register devices is coupled to a respective one of the transducer segments.  A first clock is associated with each of the register devices. A plurality of second clocks are also provided, each being associated with one of the plurality of register devices.          The second clocks have different characteristic clock rates.          Timing means are provided for effecting clocking of the electrical signals from the segments into their respective devices with one of the device's associated clocks (i.e., either the common first clock or the device's associated second clock) and for subsequently effecting the clocking of the stored information out of each of the devices with the other of its associated clocks.  Finally, means are provided for combining the signals clocked out of the devices to form an image-representative signal.  In the present disclosure, the increasing or decreasing delay associated with the different transducer elements, as is required for dynamic focusing, is achieved by utilizing signals of slightly differing  frequencies (e.g. the second clocks) so that, as time passes, the cumulative difference in sampling times for the different registers "builds up" to provide the desired variable delay.
Patent CA-1117896-A (CA)
Inventor: MARTINSONS ALEKSANDRS
IPC: C25B1/46
Filed: 1978-06-13
Granted: 1982-02-09
Abstract: METHOD OF ELECTROLYSIS         Abstract Disclosed is a method of electrolyzing alkali metal chloride brines by passing an electrical current from an anode in an aqueous alkali metal chloride anolyte liquor through a permeable barrier to a cathode in an aqueous catholyte liquor, whereby to evolve chlorine at the anode and hydrogen at the cathode.  Also disclosed is the addition of a compound of an electrolytic hydrogen evolution catalyzing transition metal to the catholyte liquor while passing electrical current from the anode to the cathode.  The addition of the compound of the transition metal through the catholyte liquor causes a reduction in the cell voltage.
Patent CA-1085783-A (CA)
Inventor: HERPICH WILLIAM A
IPC: B65F3/28
Filed: 1978-07-11
Granted: 1980-09-16
Abstract: T I T L E          HYDRAULIC SYSTEM FOR A REFUSE TRUCK                   A B S T R A C T        An apparatus for compacting refuse as in the body of a rear loader refuse truck having a movable panel which extends across the body of a barrier against which the refuse is compacted by a packer blade.  The packer blade is movable through a loading hopper to move the refuse into the rear of the body and to compact it against the panel.  The apparatus has an hydraulic system including a pump for supplying fluid at a controlled maximum system pressure, an hydraulic cylinder mechanism for powering the packer blade and a valve which is biased toward neutral and which is manually movable to a power position for supplying fluid to the hydraulic cylinder.  The valve has pressure responsive means which hold it in power position and which are deactivated when the pressure in the hydraulic cylinder reaches a level below maximum system pressure.          The apparatus comprises a manually activated, position sensing device, for example an engageable cam, which can be set to overcome the pressure responsive means and to hold the valve in power position.  An element of the packer blade structure deactivates the position sensing cam when the packer blade reaches a position close to but short of its normal final rest position which allows the bias on the valve to return it to neutral and to stop the movement of the packer blade.
Patent CA-1133607-A (CA)
Inventor: MAGNANTE PETER C
IPC: G01N27/16
Filed: 1978-07-11
Granted: 1982-10-12
Abstract: ABSTRACT OF THE DISCLOSURE      A gas or vapor sensing and alarm device in an air purifying respirator for warning the wearer of hazardous levels of gases or vapors penetrating through the respirator cartridge.  An exothermic sensor which can be fitted in the cartridge adaptor or facepiece cavity of the respirator monitors the heat evolved during adsorption of the vapor or gas into the sensor's absorbent and triggers an alarm when the respirator cartridge has reached the end of its service life.
Patent CA-1091930-A (CA)
Inventor: EVANS F DAVID
IPC: B24B55/06
Filed: 1978-09-06
Granted: 1980-12-23
Abstract: COMBINATION RAM BIASED BOARD HOLD-DOWN AND EXHAUST INFEED                 Abstract of the Disclosure Abrading apparatus including a frame, a workpiece support and an abrasive belt mounted above the support further includes an assembly combining a workpiece hold-down shoe and an entry duct movable with the show for exhausting debris during abrading action.  The shoe extends transversely of the workpiece relative to its infeed direction of travel and also includes a member extending upwardly therefrom which forms a rear wall of the entry duct.
Patent CA-1106913-A (CA)
Inventor: CHIREAU ROLAND F
IPC: H01M4/26
Filed: 1978-09-15
Granted: 1981-08-11
Abstract: ABSTRACT OF THE DISCLOSURE          A mercury-free negative zinc electrode is described for use in secondary alkaline electrochemical cells.  It contains an active zinc material and lead acetate or cadmium acetate substantially homogeneously dispersed in a non-ionic binder which is an hydroxy alkyl cellulose.  The aforementioned constituents are typically admixed to form a paste which is compressed against opposing sides of a current collector to form a zinc electrode.
Patent CA-1107574-A (CA)
Inventor: PATEL RASIK M
IPC: G09F21/00
Filed: 1978-10-12
Granted: 1981-08-25
Abstract: ABSTRACT OF THE DISCLOSURE     A device for aiding in the location of  a person or object comprises a balloon connected by a valve to a container for a pressurised gas lighter than air,all of which are disposed within a casing in which a tethering line for the balloon is disposed and held closed by releasable means which also holds the valve closed and which is operative to permit escape of the balloon and gas container from the casing whilst simulataneously opening the valve to admit gas into the balloon whereby the inflated balloon with the gas container connected thereto can rise into the air at one end of the tethering line.
Patent CA-1095541-A (CA)
Title: Snow thrower with combined discharge vane support and  strike-off wall
Inventor: CHASE ALAN L
IPC: E01H5/04
Filed: 1978-10-30
Granted: 1981-02-10
Abstract: SNOW THROWER WITH COMBINED DISCHARGE VANE                  SUPPORT AND STRIKE-OFF WALL     ABSTRACT OF THE DISCLOSURE         A compact, lightweight snow thrower having a power driven impeller rotating about a horizontal, transverse axis to throw snow upwardly and forwardly through a chute which is substantially coextensive in width with the axial length of the impeller.  A plurality of laterally spaced upright vanes are disposed in and pivotally connected to the upper end of the chute for the purpose of directing the discharge of snow.  The chute includes a front wall portion which serves as a support for the discharge directing vanes and as a strike-off wall preventing jamming of the discharge chute when the snow thrower encounters deep snow.  Snow thrown by the impeller against the front wall portion tends to fall down because of its vertical disposition.
Patent CA-1087472-A (CA)
Inventor: BOUWKAMP GERALD R
IPC: F02D1/02
Filed: 1978-11-22
Granted: 1980-10-14
Abstract: ABSTRACT OF THE DI DISCLOSURE         Designs for variably controlling the maximum quantity of fuel which can be delivered by a pumping stroke of pumping plungers are disclosed.  These include combinations of resilient and rigid leaf spring arrange-ments for controlling the maximum pumping strokes with and without speed responsive control valves or cams, to provide excess fuel for starting and for shaping the maximum fuel delivery curve according to speed.
Patent CA-1115785-A (CA)
Title: Temperature responsive power supply  apparatus for electrical resistance  heating
Inventor: JONES ROBERT H
IPC: H05B3/00
Filed: 1979-01-03
Granted: 1982-01-05
Abstract: ABSTRACT OF THE DISCLOSURE           Temperature responsive power supply apparatus for electrical resistance heating, e.g. for weld stress relief, has a power supply transformer comprising first and second secondary windings in series with one another and first, second and third conductors for connecting the secondary windings to heating elements.  A pair of temperature sensors provide temperature signals corresponding to the temperatures of zones heated by the apparatus, and a pair of control units responsive to the temperature signals control the current flow through the con-ductors.  A switch enables one or both control units to regulate saturable reactors or the like in series with the conductors, whereby the control unit can regulate two respective heating circuits each including one of the secondary windings or one of the control units can regulate a heating circuit including one or both of the secondary windings.  The apparatus provides improved versatility for heating one or more large or small pipe welds.
Patent CA-1112716-A (CA)
Inventor: MACEY ROY E
IPC: G01R19/30
Filed: 1979-01-23
Granted: 1981-11-17
Abstract: ABSTRACT OF THE DISCLOSURE A method of continuously monitoring the condition of a power transmission line insulator while it is in service, in which part of the insulator is bypassed by conductive means and in which, when the leakage current passed by the insulator and flowing through the conductive means exceeds a predetermined value, the conductive means is severed by a detonator or other explosive charge and actuating means is actuated which is operative to give a remote indication.   Also a sensing and actuating device for use in the method, having conductive means and being adapted to be attached to an insulator so as to bypass part of it, which includes a detonator or other explosive charge adapted to sever the conductive means when leakage current through it exceeds a predetermined value and actuating means in the form of a mercury switch which is operable to give a remote indication when this happens.
Patent CA-1149139-A (CA)
Title: Apparatus and process for manufacturing finned tubes
Inventor: VAN METEREN JOHANNES
IPC: B21D53/06
Filed: 1979-01-25
Granted: 1983-07-05
Abstract: LEM/vh P/? 8 APPARATUS AND PROCESS FOR MANUFACTURING               FINNED TUBES       Abstract of the Disclosure Apparatus and process for manufacturing a finned tube, said apparatus comprising a tube feed assembly which has absolute control over the rotational speed of the bare tube being processed as well as the linear feed rate thereof, a grooved roller assembly (when forming an applied fin "G" tube) to materially improve the material flow distribution of the tube during groove formation, a fin forming assembly which deforms the finning material to permit the use of thinner finning material and which compensates for fluctuations between feed rates of the finning material and rotational speed of the tube or presentation rate of the grooved tube to the deforming finning material during fin swageing and a fin swageing assembly.
Patent CA-1113916-A (CA)
Inventor: NAGURA TORAO
IPC: C10M111/02
Filed: 1979-02-06
Granted: 1981-12-08
Abstract: Abstract of the Disclosure:      A lubricant for plastic working which is positively free of oily matter is prepared by adding a solid powder lubricant to a polyhydric alcohol.
Patent CA-1132959-A (CA)
Inventor: KATO SHINICHIRO
IPC: G11B23/087
Filed: 1979-02-06
Granted: 1982-10-05
Abstract: ABSTRACT OF THE DISCLOSURE        A tape cassette for a magnetic recording and/or reproducing apparatus has at least one reel contained in a cassette casing formed with an opening through which a tape wound on the reel can be withdrawn from the cassette casing for the recording of signals thereon or reproducing the signals therefrom, and a brake lever is provided to prevent the reel from rotation when the tape cassette is not used.          At least one tape guide member for extending the tape along the opening is integrally formed on the brake lever.  The tape guide member formed on the brake lever may be distant from the pivotal axis of the brake lever to alter the length of the tape path in accordance with the rotation of the brake lever.
Patent CA-1132998-A (CA)
Inventor: LLENADO RAMON A
IPC: C11D3/08
Filed: 1979-03-12
Granted: 1982-10-05
Abstract: MODIFIED SILICATES                      Ramon A. Lienado ABSTRACT OF THE DISCLOSURE     The compound   wherein each M is selected from the group consisting of Na, K, H and mixtures thereof; n is the degree of polymerization and ranges from about 2 to about 1,000; T is selected from the group consisting of Al, Ti, Zn, Zr, Sn, V, Mo, W, Se, Ge and mixtures thereof; and R is an acyl group containing from about 2 to about 30 carbon atoms and from about 0 to about 5 additional carboxylate groups; detergent compositions containing said compound and similar capped compounds; and processes for preparing said compound.
Patent CA-1114233-A (CA)
Inventor: WOOLNER JOHN H
IPC: E01B29/26
Filed: 1979-03-19
Granted: 1981-12-15
Abstract: ABSTRACT             Apparatus for driving railroad spikes having at least one pair of hydraulic driving rams and associated spike holders and spike feeding arms. Each ram and its associated spike holder and spike feeding arm is suspended from an adjustable head supported in a mounting frame. Each head is individually movable in a first direction parallel to railroad track rails and in a second direction perpendicular to railroad track rails so that each ram and associated spike holder can be independingly adjusted relative to a tie plate hole through which a spike is to be driven and both rams and associated spike holders are adjustable in unison in a first direction parallel to railroad track rails and in a second direction perpendicular to railroad track rails to spot the spikes over the holes in a tie plate through which the spikes are to be driven. A plurality of threaded adjustment members and means for individually moving each head to set the rams and associated spike holders in a pattern corresponding to the location of the holes in a tie plate and hydraulic cylinders and rods to adjust the rams and associated spike holders in unison to spot the spikes at the holes in each individual tie plate.
Patent CA-1147522-A (CA)
Inventor: STORCHHEIM SAMUEL
IPC: B22F3/24
Filed: 1979-03-23
Granted: 1983-06-07
Abstract: METHOD OF AND APPARATUS FOR HOT PRESSING PARTICULATES                    ABSTRACT           Articles (11) are formed by hot pressing metal or metallic particulates (12) at temperatures between about the recrystallization temperature and about the solidus temperature for the metal or alloy after first preheating the particulates and the die (14).  The particulates are hot pressed for a very short period of time, usually less than five seconds at about 12 tons per square inch or greater to compact and weld the particles together into a wrought metal article (11) having substantially greater tensile strength and a better isotropic strength than a conventional cast or powder metallurgy article of the same metal or alloy.  Addition-ally, the articles (11) can be made with 99+ percent of theoretical density and with substantially no gas porosity.  The article's surfaces may be smooth and held to relatively close tolerances with a good uniformity of surface hardness.  Articles can be formed using conven-tional die presses to press articles repetitively without welding of the articles to die walls even when using aluminum particulates.  The preferred particulates are substantially larger in size than the conventional powder materials used in powder metallurgy and appear to be strain hardened during the hot pressing thereof.
Patent CA-1096849-A (CA)
Inventor: NIEDER CHARLES E
IPC: B28D1/00
Filed: 1979-04-24
Granted: 1981-03-03
Abstract: TITLE OF THE INVENTION          Rock Splitting Attachment for a Breaking Hammer ABSTRACT OF THE INVENTION     A rock splitting attachment for a breaking hammer comprising a primary shaft and an elongated primary wedge assembly that is telescopically attached to the primary shaft.  The primary shaft has a plurality of principal wedge surfaces on its outer surface adjacent its bottom end.  The structure for telescopically at-taching the primary shaft to the elongated primary wedge assem-bly comprises a bore in the primary shaft extending axially inwardly from its bottom end and a secondary shaft that forms a part of the elongated primary wedge assembly.  The width of the secondary shaft is smaller than the width of the bore so that it may be telescopically received therein.  The secondary shaft has an external groove extending axially along a substantial portion of its length.  A set screw is threadably seated in the primary shaft so that it extends radially inwardly far enough into the primary shaft that it extends into the external groove of the secondary shaft.  The external groove is closed at its top end to prevent the secondary shaft from being pulled out of the bore of the primary shaft.  The secondary shaft has a plur-ality of arms extending laterally from its lower end.  The primary wedge assembly has a plurality of leg members each hav-ing a laterally oriented bore adjacent its lower end and each has one of the laterally extending arms of the secondary shaft received in its bore.  The leg members have principal wedge surfaces on their inwardly facing sides.
Patent CA-1134457-A (CA)
Inventor: BOLOTNIKOV ARKADY L
IPC: H05H1/34
Filed: 1979-04-30
Granted: 1982-10-26
Abstract: ABSTRACT OF THE DISCLOSURE     The present invention provides a non-consumable electrode for plasma-arc welding in a medium of carbon-dioxide-based mixtures, comprising a holder made of copper or copper alloys, and a cylindrical insert made of hafnium and embedded flush in said holder, said insert having on its surface a layer of hafnium oxycarbide, characterized in that the insert contains a layer of graphite applied to the layer of hafnium oxycarbide, the height and the diameter of said cylindrical insert being chosen in accordance with the following ratio:                     h = (0.25 to 0.75) d, wherein h is the height of the active insert and d is the diameter of the insert.  Such an electrode allows such welding to be effected at arc currents in excess of 400 A with an operating life suitable for commercial use.  Again the elec-trode allows such welding at arc currents permitting the welding of low carbon and low alloy steels more than 6 mm thick and also without edge preparation at speeds equal to or greater than conventional welding speeds.