baber/WOPTO huggingface dataset:
Patent CA-1146904-A (CA)
Inventor: ARCHER ANTHONY M
IPC: C25C3/20
Filed: 1979-04-20
Granted: 1983-05-24
Abstract: TECHNIQUE FOR AUTOMATIC QUENCHING OF ANODE EFFECTS         IN ALUMINIUM REDUCTION CELLS                         ABSTRACT            For the clearance of anode effects in operation of electrolytic cells for aluminium production, movement in the metal pool is in-duced to effect short-circuiting of the cell and disturbance of any gas film on the face of the anode(s) by raising the anode(s) and then lowering them to datum position and/or tilting the anode in relation to datum position.   Upward  movement is terminated either after a predetermined distance or when a predetermined cell voltage is attained.   Fresh alumina is introduced into the cell by breaking alumina crust by anode movement or by independent supply.
Patent CA-1114414-A (CA)
Inventor: HOCHSTRASSER PETER
IPC: A63C5/06
Filed: 1979-04-24
Granted: 1981-12-15
Abstract: STREAMLINED TIP FOR A SKI            ABSTRACT OF THE DISCLOSURE           The tip of a ski, particularly a racing ski, is streamlined. A shaped body is arranged on the upper surface of the ski tip.  The bottom running surface of the ski terminates in a tip portion, which is bent forward and upward out of the running surface so as to provide guide stability to the ski.  The upwardly bent portion has a generally triangular shaped surface.  The tri-angular surface passes into a rounded, centrally longi-tudinally extending, air-dividing ridge.  The ridge merges at both its lateral sides into concave side surfaces which appear like upwardly inclined sides, and these merge via a rounding, into the convexly rounded upper surface of the shaped body.  The ridge has a point of inflection in its course with respect to the central longitudinal plane of the ski.  The ski tip is developed in longitudinal section to have a curved form which appears like a thrush head or dolphin head.
Patent CA-1119220-A (CA)
Inventor: VOTTA GERALD A
IPC: C22C9/00
Filed: 1979-05-01
Granted: 1982-03-02
Abstract: ABSTRACT OF THE DISCLOSURE           A circuit interrupter having a stationary contact assembly and a movable contact assembly with a dielectric gas filled housing containing the stationary and movable contact assemblies.  The stationary contact assembly includes an arc runner contact, an electrical coil and a circuit connection means for connecting the coil in series with the arc runner contact.  The arc runner contact containing a generally flat conductive disk having an axis which is coaxial with the axis of the coil. The coil being disposed adjacent one surface of the arc runner contact and being in a plane parallel to the plane of the arc runner contact and being closely magnetically coupled to the arc runner contact.  The movable contact assembly includes a generally cylindrical arcing contact which is coaxial with the arc runner contact and is movable into and out of contact with the surface of the arc runner contact.  One of the arc runner contacts and the movable arcing contact consisting of an alloy of chromium copper to improve interruption capability.
Patent CA-1113328-A (CA)
Inventor: CUMMINGS RICHARD D
IPC: F24S10/55
Filed: 1979-05-03
Granted: 1981-12-01
Abstract: ABSTRACT OF THE DISCLOSURE         A solar collector unit of triangular transverse cross section is provided with a corrugated heat trap element on at least the rear vertical wall of the collector.  The heat trap element has a V-shaped cross section, the angle of the V being in the range of about 35° to about 55°. The heat trap element, in part, serves to increase the effective heat transfer surface of the collector at relatively little expense.  Additionally, the corrugated member serves as a channel for direction of the flow of fluid to be heated through the collector.
Patent CA-1134898-A (CA)
Inventor: ELTER JOHN F
IPC: G03G15/20
Filed: 1979-05-22
Granted: 1982-11-02
Abstract: A CONFORMABLE/NON-CONFORMABLE ROLL FUSER   ABSTRACT           Heat and pressure fusing apparatus for fixing toner images to copy substrates comprising a first fusing system consisting of a pair of nip forming rolls, one of which is provided with a conformable outer surface and a second fusing system consisting of a pair of nip forming rolls, one of which has a rigid outer surface.  Copy substrates are passed sequentially through the nips of the first and second fusing systems, in that order such that the toner images sequentially contact the conformable outer surface and then the rigid outer surface.
Patent CA-1139914-A (CA)
Inventor: ALLEN THOMAS C
IPC: D01D5/22
Filed: 1979-07-19
Granted: 1983-01-25
Abstract: ABSTRACT OF THE DISCLOSURE          A regenerated cellulose fiber containing an alloying polymer of acrylic acid or methacrylic acid, or a copolymer containing acrylic and methacrylic acid moieties or an alkali metal or ammonium salt thereof or other anionic alloying polymers or copolymer is prepared by a process wherein the alloying polymer is mixed with a viscose solution of known unreacted sodium hydroxide concentration, the sodium hydroxide concen-tration in the resulting mixture is increased to compensate for any loss in concentration due to neutralization and/or dilution effects by the addition of the alloying polymer to the viscose. increasing the sodium hydroxide concentration greater than that required to restore the concentration to the original level has resulted in dramatic increases in absorbency.  The resulting viscose solution is extruded into a spin bath in which the sulfuric acid concentration is reduced so that the resulting fibers will have at least 90% of the crimp of a fiber produced from the viscose solution without alloying polymer or copolymer.
Patent CA-1138163-A (CA)
Inventor: MIKAMI TAKASHI
IPC: D01D4/02
Filed: 1979-09-06
Granted: 1982-12-28
Abstract: Jap. 30928/78 ABSTRACT OF THE DISCLOSURE In an improved die-nose assembly for a melt-blowing process wherein molten resin is extruded from a series of die-holes while heated gas is blown out through slots on either side of the die nose associated therewith, spacers which are movable widthwise of the die assembly are provided in the gas slots to provide effective uniformity in the gas streams across the width of the die.
Patent CA-1131248-A (CA)
Inventor: SCHULZ JOHANN G D
IPC: C07C63/00
Filed: 1979-09-26
Granted: 1982-09-07
Abstract: PROCESS FOR PREPARING ORGANIC ACIDS                        ABSTRACT A process for preparing a mixture of polycyclic aromatic polycarboxylic acids that is substantially soluble in acetone but substantially insoluble in water which comprises subjecting a slurry containing coal to reaction with aqueous nitric acid in an atmosphere containing molecular oxygen, mechanically separating the solids in the resulting slurry, extracting the resulting solids with a polar solvent to separate therefrom a mixture of polycyclic aromatic polycarboxylic acids substan-tially soluble in acetone but substantially insoluble in water and a mixture of polycyclic aromatic polycarboxylic acids sub-stantially insoluble in acetone and substantially insoluble in water.
Patent CA-1148833-A (CA)
Inventor: SCHMIDT WILLIAM T
IPC: B01D19/04
Filed: 1979-10-26
Granted: 1983-06-28
Abstract: Our Reference:  002709 WATER BASED DEFOAMER COMPOSITIONS          ABSTRACT OF THE DISCLOSURE        Water based defoamer compositions which are invert (water in oil) emulsions containing quick-chilled amides, hydrophobic silica, polymers, emulsifiers, oil and water are useful in defoaming aqueous systems such as found in the kraft pulping process.  Optionally, these defoamer compositions may contain silicone surfactants, formaldehyde solution and silicone oil.
Patent CA-1124111-A (CA)
Inventor: SUGAHARA SYUNJI
IPC: B25B23/02
Filed: 1980-01-18
Granted: 1982-05-25
Abstract: ABSTRACT OF THE DISCLOSURE    An automatic power-driven screwdriver comprises a first cylindrical member having a hand grip portion, a guide portion, a tapered portion and a flanged portion between the tapered and hand grip portions.  A second cylindrical member, which is a nose portion of the screwdriver, is mounted to telescope over the guide portion.  A third cylindrical member encircles the guide portion and is slidably mounted at one end over the second cylindrical member.  The third member is formed with a tapered contacting surface complementary to the surface of the tapered portion of the first member.  An adjusting nut having an inwardly extending flange is mounted on the first member with the flange being in contact with the flanged portion and is threadably engaged with the third member so that the tapered contact-ing surfaces are brought into firm pressure contact which enables the first and second cylindrical members to be secured firmly together.  By loosening the nut the nose portion of the apparatus can be rotated to a desired angular position with respect to the hand grip portion so that a screw feeder tube, connected to the nose portion, is not hindered by an obstacle which might be present in working areas.
Patent CA-1127727-A (CA)
Title: Gas insulated electrical apparatus with  dielectric particle trapping barriers
Inventor: YOSHIOKA AKIYOSHI
IPC: H02G5/06
Filed: 1980-01-25
Granted: 1982-07-13
Abstract: W.E. 48,857 ABSTRACT OF THE DISCLOSURE      A grounded hollow cylindrical housing filled with SF6 encircles coaxially a rode-shaped electric conductor through a plurality of spaced, electrically insulating spacers.  With the housing disposed horizontally, two spaced, hollow frustoconical dielectric members are connected to the inner surface of the housing adjacent to either surface of each spacer to overlap the latter.  With the housing disposed vertically, a disc-shaped dielectric member fixedly entends through the conductor to be adjacent and overlap each spacer.  Further an annular dielectric member may be connected to the inner surface of the housing between the disc-shaped dielectric member and the spacer.  The dielectric member is preferably of a poly-tetrafluoroethylene.
Patent CA-1130820-A (CA)
Title: Preparation of olefins from crude methanol
Inventor: MAROSI LASZLO
IPC: C07C11/02
Filed: 1980-02-20
Granted: 1982-08-31
Abstract: O.Z. 0050/033725 Abstract of the disclosure: A process for the prepara-tion of C2-C5-olefins from crude methanol and/or dimethyl ether by catalytic conversion at an elevated temperature in the presence of a zeolite-containing catalyst, wherein the zeolite has been prepared from technical-grade water-glass with the aid of hexamethylenediamine, without addition of a metal salt.     The raw material used for the process is undiluted crude methanol and/or dimethyl ether.
Patent CA-1138850-A (CA)
Inventor: KRINGS JOSEF
IPC: E02D17/04
Filed: 1980-03-11
Granted: 1983-01-04
Abstract: EXCAVATION OR TRENCHING PLATE       ABSTRACT OF THE DISCLOSURE            This disclosure relates to an excavation or trenching plate which includes one or more panels formed by a plurality of generally C-shaped vertically oriented beams collectively defining a plurality of side-by-side vertical chambers endmost ones of which open in opposite sidewise directions through associated grooves, upper and lower generally horizontal beams also of generally C-shaped configuration spanning the upper and lower ends of the vertical beams with the horizontal beams likewise having horizontal channels opening endwise in opposite directions through horizontal grooves, and tie bars extending horizontally and vertically through the various beams and being accessible through channels of the endmost vertical beams and upper and lower beams for retaining the beams in assembled relationship.
Patent CA-1137044-A (CA)
Inventor: TEED RICHARD K
IPC: A61F13/15
Filed: 1980-03-28
Granted: 1982-12-07
Abstract: APPARATUS AND PROCESS FOR ATTACHING ELASTIC STRIPS DURING THE MANUFACTURE OF ELASTIC LEG DISPOSABLE DIAPERS         Abstract of the Disclosure An apparatus and process for attach-ing elastic strips in elastic leg disposable diapers having gathered and extendible side portions in the crotch area during manufacture of such diapers in an assembly machine including mechanisms for alternately stretching and relaxing predetermined lengths of the elastic strips for adhesive attachment of the stretched lengths to the crotch area and the more relaxed lengths to the outer waist areas continuously along the edges of the diaper.  These mechanisms include devices for feeding elastic strips at a predetermined constant rate for adhesive attachment in the diaper, nipping mechanisms engaging the elastic strips and defining a pre-determined distance of travel of the elastic strips therebetween, movable devices for en-gaging the elastic strips and for alternately moving to other positions to vary the distance of travel of the elastic strips for alternately stretching and relaxing the elastic strips and compensating mechanisms for maintaining the stretching and the relaxing, respectively, during feeding of the stretched and relaxed lengths.
Patent CA-1127041-A (CA)
Inventor: SEBILLOTTE CHRISTIAN
IPC: A47J27/09
Filed: 1980-05-09
Granted: 1982-07-06
Abstract: ABSTRACT         A device is disclosed which comprises a steam escape-duct ter-minating in a valve-seat.  A shut-off surface arranged in a cap at the bottom of an axial cavity slides upon the duct and rests, in service, upon the seat. The cap is weighted in such a manner that the centre of gravity thereof is located below the seat.  An axial cavity is connected to the outside by two offset vents causing the cap to rotate by reaction to the steam passing through them when the cooking pressure is reached.  The device comprises an element permanently secured to the cap and displaceable manually between two positions, each determining a different lifting pressure of the cap in relation to the duct.
Patent CA-1151724-A (CA)
Inventor: BLASCHKE FELIX
IPC: H02P27/04
Filed: 1980-05-14
Granted: 1983-08-09
Abstract: ABSTRACT A control unit for regulating an asynchronous motor supplied with power from a three phase network by a line-controlled power converter which is DC coupled to a self-commutated inverter has a function generator and a current regulator which controls the stator current of the motor by the con-trolling rectifier valves in the inverter.  Control of the stator current is a function of a predeterminable valve of flux fed into the function gener-rator.  In a parallel control system, an actual-value computer and a load state control regulate the stator frequency by generating a signal for controlling the self-commutating converter as a function of the actual values of the stator current, the stator voltage, and a value calculated from the function generator input variable.  The computer forms signals corresponding to the amplitude of the flux vector, and to a stator current component perpendicular to the flux vector.  A variable derived from the predeterminable variable is applied to the load state control as a reference value.  Fall-out-proof, low oscillation, speed control is effected from low angles to nearly 90°.
Patent CA-1147814-A (CA)
Title: Combined fault and voltage indicator
Inventor: SCHWEITZER EDMUND O JR
IPC: G01R19/155
Filed: 1980-06-23
Granted: 1983-06-07
Abstract: Case 780657 COMBINED FAULT AND VOLTAGE INDICATOR .     Abstract of the Disclosure A combined fault and voltage indicator includes a rotatably-mounted target viewable from the exterior of the indicator for indicating the occurrence of a fault and a lamp viewable from the exterior of the indicator for indica-tiny system operating voltage.  The target is positioned in a reset-indicating state by a reset circuit which periodically energizes a first winding to position a permanent magnet mounted for rotation with the target.  Upon occurrence of a fault circuitry within the indicator energizes a second winding to reposition the target to a fault-indicating position.  The lamp is caused to flash at a rate which indi-cates the operating voltage of the system.
Patent CA-1138313-A (CA)
Inventor: CURTISS WALTER W JR
IPC: B60C17/00
Filed: 1980-06-27
Granted: 1982-12-28
Abstract: TIRE WITH SUPPORTABLE SIDEWALLS   Abstract of the Disclosure A tire and a tire and rim assembly.  The rim comprises a pair of annular support members extending axially out-wardly of a pair of bead seat surfaces.  The axial width of a tread of the tire is greater than the axial distance between the annular support members.  A plurality of side-wall appendages are connected on the exterior surfaces of the sidewalls of the tire such that they are spaced apart from the annular support members when the tire is inflated and in supporting contact with the annular support members when the tire is uninflated and under load.  The sidewall appendages extend radially and axially along the sidewalls such distances that when the tire is uninflated and under normal load, the support members support the sidewall appendages to maintain the shape of the sidewalls substantially the same as when the tire is under normal inflation pressure and load.
Patent CA-1114546-A (CA)
Inventor: REUSSER ROBERT E
IPC: C08F297/04
Filed: 1980-07-04
Granted: 1981-12-15
Abstract: Abstract of the Disclosure A pipe coating composition is provided having good crack resistance properties that consists essentially of about 50 to 70 wt. % mineral aggregate, about 15 to 35 wt. % finely divided mineral filler, about 5 to 20 wt. % asphalt, about 0.05 to 7 wt. % of a rubbery radial teleblock copolymer, about 0 to 7 wt. % of an oil, and about 0 to 0.5 wt. % of a fibrous material. Furthermore, the crack resistance of a pipe coating composition is dramatically improved by using an asphalt rubber composition in which the rubber is an epoxy-coupled radial teleblock copolymer as compared to a silicon tetrahalide-coupled radial teleblock copolymer of essentially the same structure.
Patent CA-1140169-A (CA)
Inventor: WEST HAROLD E
IPC: E05F15/14
Filed: 1980-07-09
Granted: 1983-01-25
Abstract: 11                  48,342 ABSTRACT OF THE DISCLOSURE There is disclosed a door motion control appara-tus  for  the passenger entry and exit doors of a mass transit vehicle, which passenger entry and exit doors are opened by a drive motor when the vehicle is stopped at a desired location for passenger entry and exit within a station.
Patent CA-1153714-A (CA)
Inventor: BROWN R CLARK
IPC: C12N9/64
Filed: 1980-09-12
Granted: 1983-09-13
Abstract: ABSTRACT OF THE DISCLOSURE                 Abstract of the Disclosure Endotoxin   clottable   extracts   are   standardized   by inactivating  endogenous  inhibitor,  determining  the  coagulase activity of the extract and proportioning the extract into an endotoxin assay reaction mixture  so as  to provide coagulase activity at a predetermined level.  In most circumstances the coagulogen  concentration  is  also  determined  and,  if  the concentration is lower than a predetermined amount, coagulogen is added to the extract.  Inhibitor is advantageously inactivated by adjusting the extract pH to a strongly alkaline level, incubating and readjusting the pH to near neutrality.
Patent CA-1153055-A (CA)
Inventor: PEIL WILLIAM
IPC: H05B31/00
Filed: 1980-10-24
Granted: 1983-08-30
Abstract: AN ARC LAMP LIGHTING UNIT WITH MEANS TO PREVENT  PROLONGED APPLICATION OF STARTING POTENTIALS               ABSTRACT OF THE DISCLOSURE     The present invention relates to a lighting unit utilizing an energy efficient arc lamp as the main source of light supplemented by a standby filamentary lamp, the filament serving as a resistive ballast for the arc lamp during normal operation.  The lighting unit is designed for functional similarity to an incandescent lamp, the filament providing immediate illumination when the lighting unit is first energized and continuing illumination until the arc lamp itself produces light.  In accordance with the invention, if the arc lamp does not start within a predetermined period, the application of starting potentials produced through operation of a solid state switch and a high frequency step-up transformer is discontinued and the lighting unit rendered inactive.  Examplary means includes a positive temperature coefficient thermistor responsive to the temperature rise of the solid state switch.  The solid state switch is connected in a normally off, monostable configuration and requires a trigger oscillator to generate a separate pulse for each switch conduction interval.  The resistance rise in the thermistor is used to prevent trigger oscillations by causing saturation of the trigger oscillator transistor at a current level sufficient for self-heating of the termistor.  The solid state switch is latched in an off state until power is removed.
Patent CA-1148956-A (CA)
Inventor: FRENTZEL RICHARD L
IPC: C08J9/00
Filed: 1980-10-30
Granted: 1983-06-28
Abstract: ABSTRACT OF THE DISCLOSURE      Polyoxyalkylene surfactants for cellular foams can be pre-pared by reacting under free radical polymerization conditions a polyoxyalkylene adduct, a cyclic nitrogenous vinyl monomer and an esterified unsaturated dibasic acid in the presence of an organic or inorganic per-compound and a metal catalyst.   Thus there is disclosed a process for preparing a surfactant for cellular foams comprising reacting a cyclic nitrogenous vinyl monomer of the formula   , wherein n is 3, 4, or 5, and an esterified unsaturated dibasic acid containing 4 or 5 carbon atoms in the acid portion by free radical addition polymerization in the presence of (a) a polyoxyalkylene adduct having the formula  , wherein x is an organic or inorganic radical and t is the number of polyoxyalkylene chains reacted onto R, (b) an organic or in-organic per-compound, and (c) a metal catalyst comprising a com-pound of a transition metal having an atomic number of 21 to 30 to provide a foam surfactant composition.
Patent CA-1133346-A (CA)
Inventor: NISCHWITZ EDMOND P
IPC: F24B7/04
Filed: 1980-11-19
Granted: 1982-10-12
Abstract: Room Heating Device Abstract of the Disclosure A room heating device (10) includes a hollow grate (30) for heating water contained therein and for heating air communicating therethrough in response to a fire.  The hollow grate (30) has a plurality Or interconnected ducts (40-45) and a conduit (50) passing through the ducts (40-45) defining a water and steam containing cham-ber (48) externally of the conduit (50) and a passage (54) internally of the conduit (50).  A fan (92) forces air to be heated through the passage (54) and outwardly to a room.  The grate (30) finds particular utility in a fireplace (12) for supporting a plurality of logs (97).
Patent CA-1141151-A (CA)
Inventor: LUTHI OSCAR
IPC: F26B13/30
Filed: 1980-11-24
Granted: 1983-02-15
Abstract: PAPER DRIER DRUM              ABSTRACT OF THE DISCLOSURE      Hot gas is used to dry the paper on a rotatable drum.  A plurality of spokes interconnect a rotatable shaft and the drum.          The hot gas flows within the drum and directly contacts the spokes.  The spokes extend tangentially from the shaft to the drum.