baber/WOPTO huggingface dataset:
Patent CA-1126753-A (CA)
Inventor: PLATZ ROLF
IPC: C07B61/00
Filed: 1979-07-19
Granted: 1982-06-29
Abstract: O.Z. 0050/033363 Abstract of the Disclosure:         In a process for the preparation of butanedicarboxylic acid esters, wherein a)      an aqueous cobalt salt solution is treated, at from 50 to 200°C and under a pressure of from 50 to 500 bar, with excess carbon monoxide and hydrogen in the presence of active charcoal laden with cobalt carbonyl, b)      the resulting aqueous solution of cobalt carbonyl hydride is extracted with butadiene, or with a hydrocarbon mixture containing butadiene, and the aqueous phase is separated off, c)      the butadiene, or the butadiene/hydrocarbon mixture, containing cobalt carbonyl hydride, cobalt carbonyl and butenyl-cobalt tricarbonyl, is reacted with carbon monoxide and a C1-C4-alkanol in excess in the presence of from 0.5 to 2 moles, per mole of butadiene, of a tertiary nitrogen base having a pKa of from 3 to 11, at from 80 to 150°C and under a pressure of from 300 to 2,000 bar, d)      the tertiary nitrogen base  contained in the result-ing reaction mixture  is removed until  its  content reaches 0.1-0.3 mole per mole of pentenoic acid ester, excess hydro-carbons are also removed, the pentenoic acid ester remaining in the reaction mixture is reacted with carbon monoxide and a C1-C4-alkanol in excess at from 140 to 200°C and under a pressure of from 100 to 400 bar in the presence of the amounts of cobalt carbonyl and tertiary nitrogen base present in the reaction mixture, and excess alkanol and free nitrogen base are then distilled off, and e)     the reaction mixture which is left and which con-O.Z. 0050/033363 tains a cobalt catalyst, butanedicarboxylic acid ester and by-products is treated with oxidizing agents in the presence of the aqueous acid solution which has been removed in stage b), and the mixture is separated into an organic phase, from which butanedicarboxylic acid ester is isolated by distillation, and an aqueous phase, containing cobalt salts, which is recycled to stage a), the improvement that the aqueous phase separated off in stage b) is heated at from 250 to 350°C under superatmospheric pressure, before being used in stage e).
Patent CA-1111879-A (CA)
Inventor: SMITH ARCHIBALD W
IPC: H01H71/50
Filed: 1979-08-03
Granted: 1981-11-03
Abstract: MECHANICAL TRIP DEVICE FOR CIRCUIT BREAKER               ABSTRACT OF THE DISCLOSURE             In a power circuit breaker a trip mechanism is provided normally to oppose the large opening forces associated with the separable contacts of the breaker and to hold the contacts closed. The trip mechanism in response to overload current conditions collapses and trips open the breaker contacts. Forces related to the opening force of the breaker contacts are present through-out the trip mechanism when the contacts are closed. The trip mechanism provides two eccentric latch mechanisms in series each of which reduce the magnitude of the forces acting in the trip mechanism that are related to the opening force. The two latch mechanisms are each mounted to a pivot for rotation therewith. A force related to the opening force is applied against each latch mechanism. Because the pivot for each latch mechanism is eccentric to the line of force acting against the latch mechanism, the force translates into a rotational force that tends to rotate the latch mechanism and pivot. The rotational force is considerably smaller in magnitude than the force acting against the latch mechanism. By utilizing the two eccentric latch mechanisms connected in series, the trip mechanism becomes a relatively simple and inexpensive device.
Patent CA-1105504-A (CA)
Inventor: MCAULAY HUBERT J
IPC: E21C25/18
Filed: 1979-08-31
Granted: 1981-07-21
Abstract: MEANS FOR DRIVING THE BACK WALLS OF A BUCKET EXCAVATOR             Abstract of the Disclosure Means for driving the back walls of the buckets of an excavating wheel having a plurality of circumferentially arranged digging buckets. Each digging bucket is provided with a pivotal back wall mounted on the excavating wheel. The excavating wheel is rotatably mounted on a central shaft. A central sprocket is freely rotatably mounted on a bucket wheel hub which is mounted on the central shaft. A mounting bracket is attached directly to the main frame of the vehicle and extends outwardly therefrom. An offset sprocket which is smaller in diameter than the central sprocket is rotatably attached to the opposite end of the bracket. The axes of rotation for the central sprocket and the offset sprocket are parallel. A continuous chain passes around the sprockets with the chain constrained to move in a predetermined path. Push rods are pivotally attached at one end to connecting links of the chain so that the push rods are disposed at equal intervals along the length of the chain. Each push rod is also pivotally attached at its opposite end to one of the pivotal back walls of the digging buckets. Each push rod, as the link to which it is attached passes near and over the offset sprocket, urges its associated back wall to pivot outwardly relative to the central shaft to an extreme outward position which is the material dumping position of the digging bucket. A controlled amount of slack is maintained in the chain so as to impart a whip-like effect to the pivotal connecting links, increasing the velocity of outward wall movement. The push rod also urges its associated back wall to pivot inwardly relative to the central shaft after its associated link has passed over and beyond the offset sprocket to an inner position which is the material receiving position of the digging bucket.
Patent CA-1116434-A (CA)
Inventor: WELLS ADONIRAM J
IPC: G01N1/02
Filed: 1979-09-26
Granted: 1982-01-19
Abstract: ABSTRACT OF THE DISCLOSURE            An improved dosimeter having a low air flow rate for monitoring working areas in which air is pumped through the dosimeter at a controlled constant low rate of flow and any particles or vapors in the air are collected on a filter, a variable drive pump having an inlet and an outlet is con-nected to the filter and is driven by an electric motor and controlled by a feed back circuit of an integrator and an amplifier and the pump maintains a constant flow of air through the dosimeter; in operation of the dosimeter the integrator receives a signal from a pressure switch that detects changes in the flow for the air stream through the dosimeter by a change in a pressure drop of the air which is being pumped through an orifice;    the improvement is the use of an adjustable by-pass valve connected in parallel with the variable drive pump in such a manner that regulated quantities of air from the outlet of the pump are recycled to the inlet of the pump thereby allowing the pump to provide a constant low flow rate of air;             in utilization of the dosimeter. the dosimeter is placed in a work area or worn by an individual and at the termination of a period of time, such as a work day, the fil-ter is removed and the contents collected are analyzed by conventional techniques such as gas chromatography to deter-mine a level of exposure of individuals working in that area.
Patent CA-1136939-A (CA)
Inventor: BIERNATH SIEGFRIED
IPC: F16L41/00
Filed: 1979-10-11
Granted: 1982-12-07
Abstract: ABSTRACT OF THE DISCLOSURE         A leakage-oil collecting line with a plurality of branch lines secured at connecting points by means of hollow screws, the said collecting line, with its branch lines, being made in one piece, and the pipe comprising 180° bends in which pieces connected to the interior of the pipe are incorporated.
Patent CA-1136452-A (CA)
Inventor: HASS MARTIN A
IPC: A61C13/00
Filed: 1979-10-15
Granted: 1982-11-30
Abstract: TITLE OF THE INVENTION         ARTIFICIAL TEETH THAT MINIMIZE STRESSES              ON DENTURE SUPPORTING TISSUE     ABSTRACT OF THE DISCLOSURE         Artificial posterior teeth of non-interlocking construction having flat surfaces parallel to the plane of lateral tooth movement that form a major portion of the occlusal surfaces.  Since the teeth can freely slide laterally on one another, side stresses that would tend to shift the dentures are avoided, even though a cross-bite setup is used.  Each tooth has a laterally extending, food positioning and holding groove and one or more spillways thereon that permit fluids and comminuted food to escape, thereby reducing hydraulic pressure.
Patent CA-1108917-A (CA)
Inventor: SCHAFER RICHARD A
IPC: A01B59/06
Filed: 1979-10-31
Granted: 1981-09-15
Abstract: TRACTOR IMPLEMENT HITCH              Abstract of the Disclosure An implement hitch for an articulated agricultural four-wheel drive tractor includes draft links secured to the rear section of the tractor by spherical bearings and carrying cou-plers to connect an implement.  Loads applied by the implement act along lines through spherical bearings in the ends of each draft link and extend into the tractor to converge and intersect slightly in front of the rear axle of the rear section of the articulated tractor.
Patent CA-1153499-A (CA)
Inventor: MACHON JEAN P
IPC: C08F210/16
Filed: 1980-03-23
Granted: 1983-09-06
Abstract: 1. Process for the copolymerization of ethylene and propylene in at least one reactor comprising at least one zone, at a temperature between 180 degrees C and 320 degrees C and at a pressure between 300 and 2, 500 bars, by means of a Ziegler-type catalytic system comprising on the one hand at least one activator selected from the hydrides and the organo-metallic compounds of the metals of the groups I through III of the Periodic Table and on the other hand at least one transition-metal halogenated compound in such a proportion that the atomic ratio of the metal of the activator to the transition metal be comprised between 0,5 and 20, characterized in that on the one hand the gaseous flow feeding the reactor consists in the steady conditions of 65 to 85% by weight of ethylene and of 15 to 35% by weight of propylene and on the other hand the transition-metal halogenated compound comprises a complex compound of formula (MCla ) (MgX2 )y (AlCl3 )z (RMgX)b where M is a metal selected from titanium and vanadium, X is a halogen, R is a hydrocarbon radical, 2 =< a =< 3, 2 =< y =< 20, 0 =< z =< 1/3, and 0 =< b =< 1.
Patent CA-1140419-A (CA)
Inventor: STOCKLE ANDRE
IPC: F16K17/168
Filed: 1980-04-23
Granted: 1983-02-01
Abstract: AUTOMATIC PRESSURE VALVE             Abstract of the Disclosure An automatic valve for a pressure suit.  The valve has a valve body with an inlet port therein having an actuable valve member to admit pressurized gas in a valve chamber in communication with a suit to which the valve is secured.  An adjustable cover member is dis-placeably secured to the body and has at least one exhaust orifice.  An outlet port is provided in the body and communicates with the valve chamber and has an automatic pressure regulating valve mechanism therein.          The valve mechanism is adjustable by a pressure biasing member controlled by a first displacement of the ad-justable cover member to control the pressure of the gas in the suit by automatically exhausting some of the gas through the outlet port when the internal pressure exceeds a preset pressure of the mechanism.  A displace-able valve member is associated with the valve mechanism and displaceable by a second displacement of the cover member to exhaust gas from the valve chamber and the inside of the suit through the outlet port.
Patent CA-1144283-A (CA)
Inventor: MICHAEL JACOB F
IPC: H05B41/19
Filed: 1980-04-23
Granted: 1983-04-05
Abstract: 9                        47,712 ABSTRACT OF THE DISCLOSURE A metal halide high-intensity discharge lamp for connection to a constant wattage-type ballast including a transformer with a secondary having a capacitor connected in  series  circuit  arrangement therewith.   The lamp in-cludes starting aid means including a voltage doubler com-prising a diode and two resistors operating in conjunction with the ballast capacitor.  The starting aid means fur-ther comprises a normally closed heat-responsive switch means operative to prevent voltage stress on the diode after the lamp starts.
Patent CA-1150853-A (CA)
Inventor: LOWIS ROYCE
IPC: H01L29/78
Filed: 1980-04-24
Granted: 1983-07-26
Abstract: ABSTRACT:            An insulated-gate field-effect transistor is disclosed which is particularly suitable for forming high-frequency transistors for a common source circuit con-figuration.  The field-effect transistor is obtained in a simple and reliable manner using the following steps: (a) forming on an insulating layer a gate layer having separate, parallel apertures; (b) doping said epitaxial layer via said apertures so as to form parallel islands from which at least part of the source fingers is to be provided; (c) providing an etch-resistant mask having smaller parallel apertures each of which overlies an area of an island; (d) etching away said areas and underlying parts of the epitaxial layer so as to form parallel V-shaped grooves which expose the substrate, extend longi-tudinally along the islands and are adjoined along oppos-ite sides by remaining parts of said islands, and (e) providing within the apertures of the gate layer and over the walls of the grooves parallel metal fingers which extend longitudinally along said islands to short-circuit the remaining parts of said islands to the epitaxial layer and to the substrate.  These remaining parts form source fingers of the transistor.  At least part of the drain fingers may also be formed in step (b).
Patent CA-1158738-A (CA)
Inventor: GIMPLE IRVING
IPC: H04M11/06
Filed: 1980-04-30
Granted: 1983-12-13
Abstract: VIDEO AND DATA DISTRIBUTION MODULE WITH SUBSCRIBER TERMINAL ABSTRACT OF THE DISCLOSURE           A subscriber data distribution system comprising first means for translating data received from a transmission line and transmitting the data to a subscriber terminal via a subscriber drop, second means for translating data received from a subscriber terminal and transmitting the data to the transmission line, the first and second means including means for isolating the transmission line from the subscriber terminal, and for regenerating the data transmitted both to and from the subscriber terminal.
Patent CA-1145253-A (CA)
Title: Fungicidal agents, a process for their preparation  and their use as fungicides
Inventor: REGEL ERIK
IPC: A01N43/64
Filed: 1980-05-16
Granted: 1983-04-26
Abstract: Fungicidal agents, a process for their preparation and their use as fungicides ABSTRACT OF THE DISCLOSURE A method of combating fungi which comprises applying to the fungi or a habitat thereof a fungicidally effective amount of a hydroxyalkyl-triazole of the formula   in which Az represents triazolyl, R  represents an optionally substituted phenyl, naphthyl or tetrahydro-naphthyl radical, R1 represents an optionally substituted phenyl or cycloalkyl radical and R2 represents hydrogen, or R1 and R2 together, in an o-position relative to one another, represent an optionally substituted, multi-membered methylene bridge, or together with the phenyl ring represent naphthyl, R3 represents halogen, alkyl, alkoxy or halogenoalkyl, n  represents 0, 1, 2 or 3, the substituents R3 being selected independ-ently when n is 2 or 3, and m represents 0 or 1, or a physiologically acceptable acid-addition salt thereof.
Patent CA-1151433-A (CA)
Inventor: OSWELL HERMAN R
IPC: F02K9/10
Filed: 1980-07-18
Granted: 1983-08-09
Abstract: Abstract of the Disclosure A rocket motor case and method of fabrication.  The rocket motor case includes a cylindrical section of commercially available seamless steel tubing, with the aft end being swaged and threaded to receive a nozzle closure which retains the nozzle in the aft end.  The forward end is threaded to accept a head end closure which is threaded to accept a payload.
Patent CA-1122780-A (CA)
Title: Amorphous silica, products thereof and methods of  preparing the same
Inventor: TAKAHASHI AKIRA
IPC: C01B33/12
Filed: 1980-08-22
Granted: 1982-05-04
Abstract: ABSTRACT OF THE DISCLOSURE         The present invention provides a composite particle of amorphous silica and calcium carbonate in the form of a primary particle and comprising an amorphous silica particle and an extremely fine particle of calcium carbonate attached to the amorphous silica particle, the amorphous silica particle having a crystalline appearance, at least two surfaces in symmetric relation, a length of about 1 to about 500µ and a thickness of about 50 .ANG. to about 1µ, the length being at least about 10 times the thickness.  The silica particles are useful for the adsorption of gases and water, have high oil adsorbing capacity and provide light weight shaped bodies of high mechan-ical strength and acid resistance.
Patent CA-1172393-A (CA)
Title: Coating compositions
Inventor: HECHENBERGER DIETER A
IPC: C09D201/08
Filed: 1980-08-22
Granted: 1984-08-07
Abstract: - ABSTRACT-A surface-coating composition, softenable by application of an alkaline aqueous solution, comprises an aqueous dispersion of (i)  a free-acid-group containing polymer, (ii)  a polymer not containing free acid groups, (iii)  a filler compatible with the free-acid-group containing polymer, and optionally, as colloidal solute, (iv)  an optionally salified free-acid-group containing polymer. The composition is produced by a mixture of items (i) to (iii) and optionally with a hydrosol The composition may be used as a paint or plaster.
Patent CA-1144482-A (CA)
Inventor: BERNSTEIN JOEL E
IPC: A61Q3/02
Filed: 1980-10-08
Granted: 1983-04-12
Abstract: Abstract An improved composition for treating psoriasis of the nails comprising applying nail polish containing an anti-psoriasis effective amount of a topical steroid.
Patent CA-1138920-A (CA)
Inventor: NELSON DONALD A
IPC: H02K15/02
Filed: 1980-10-16
Granted: 1983-01-04
Abstract: ABSTRACT OF THE DISCLOSURE DYNAMOELECTRIC MACHINE STATOR ASSEMBLY           A packaged stator core assembly and a method of making such an assembly and mounting it on a housing frame.  Arcuately spaced tension ribs secure two annular clamping flanges in compression against opposite ends of a stack of stator laminations. Torque ribs, each having an angular cross-section and a key portion located substantially at its shear center, are welded between the clamping flanges to hold the ribs in engagement with positioning slots or tabs on the outer periphery of the stacked laminations.  The lines of reaction torque force from the laminations to the ribs pass essentially through the shear centers of each rib.  In the method of the invention the ribs are welded to the clamping flanges and the stator core package is mounted in a housing frame by welding only the flanges to the frame.
Patent CA-1167199-A (CA)
Inventor: GAYLORD NORMAN G
IPC: C08F4/00
Filed: 1980-10-31
Granted: 1984-05-08
Abstract: ABSTRACT    A process for the suspension polymerization of vinyl chloride, in the presence of A redox catalyst system consisting of a peroxyester or diacyl peroxide and stannous chloride.
Patent CA-1128292-A (CA)
Title: Stabilized red phosphorus and process for its  manufacture
Inventor: STAENDEKE HORST
IPC: C01B25/023
Filed: 1980-11-05
Granted: 1982-07-27
Abstract: ABSTRACT OF THE DISCLOSURE            The invention relates to stabilized, pulverulent red phosphorus, consisting of phosphorus particles having a particle size of at most about 2 mm, and an oxidation stabilizer which envelops the phosphorus particles in the form of a thin layer , wherein a)   The oxidation stabilizer is a combination of aluminum hydroxide and is a combination of system having an epoxide equivalent weight of about 170 to 500. b)   the total amount of the oxidation stabilizer is 0.1-5 % by weight, based on the amount of red phosphorus, and c)   the proportion of aluminum hydroxide is about 0.01 to 3 % by weight, and the proportion of epoxide resin is about 0.09 to 4.99% by weight, in each case based on the amount of the red phos-phorus.
Patent CA-1152109-A (CA)
Inventor: SUNDEEN MARCIA H
IPC: B01J31/00
Filed: 1980-12-16
Granted: 1983-08-16
Abstract: MANUFACTURE OF HYDROPEROXIDES                ABSTRACT OF THE DISCLOSURE          Hydroperoxides, such as cyclohexylbenzene hydroperoxide, are manufactured by the oxidation of aryl compounds, such as cyclohexylbenzene, in the presence of a catalyst selected from the group consisting of C6 - C18 primary amines and polyvinylpyrrolidone.
Patent CA-1165161-A (CA)
Title: Device for guiding a rammer head in its transversal  direction
Inventor: HALLQVIST STEN
IPC: F41A3/74
Filed: 1980-12-17
Granted: 1984-04-10
Abstract: A B S T R A C T             A rammer car has a rammer head (10) which is movably supported in the transversal direction.  The rammer car is composed of two units (4a, 4b) which are arranged to carry out a longitudinal displacement movement between the units in the riding direction of rammer car. The rammer head is fastened in the first unit (4a) and the latter is arranged to forced by the second unit (4b) to carry out a turning movement during said longi-tudinal displacement movement between the units, during which the rammer head follows the first unit and there-with carries out its turning movement in the transversal direction.  After said longitudinal displacement movements the units (4a, 4b) are co-ordinated for a longitudinal displacement movement together in the longitudinal dis-placement direction.
Patent CA-1156486-A (CA)
Inventor: ZAGHI HOOSHMAND
IPC: G01L1/22
Filed: 1981-02-12
Granted: 1983-11-08
Abstract: Deformable Flexure Element for Strain Gage Transducer and Method of Manufacture Abstract An improved deformable flexure element (10) for use in strain gage transducers and a process for making the element are disclosed.  By appropriate selection of materials and gage geometries in accordance with the invention, the zero and span temperature coefficients of the transducer are reduced substantially to zero. Improved processes for producing such flexure elements are disclosed.
Patent CA-1131011-A (CA)
Inventor: DOVE NORMAN F
IPC: D21F7/00
Filed: 1981-02-26
Granted: 1982-09-07
Abstract: ABSTRACT OF THE DISCLOSURE         Apparatus to supply steam to a paper sheet that passes by the apparatus from a leading edge to a trailing edge of the apparatus.  The apparatus is adapted to be positioned adjacent the nip of two rolls and comprises a first header for steam and a first chamber to receive steam from the first header.  Passages for steam are formed between the first header and the first chamber.  An outlet in the first chamber permits steam to be forced against the paper sheet adjacent the leading edge of the apparatus to form a steam curtain to reduce the amount of air drawn under the apparatus by the paper sheet.  A second chamber receives steam from the first header.  There are passages for steam between the first header and the second chamber and outlets in the second chamber so that steam may be forced against the paper sheet to heat the sheet.  The flow of steam along the length of the apparatus can be controlled.
Patent CA-1155450-A (CA)
Inventor: STURM KARL
IPC: C07D307/52
Filed: 1981-03-10
Granted: 1983-10-18
Abstract: ABSTRACT    The present invention relates to compounds of the formula I                    wherein R is furyl, thienyl or phenyl, to physiologically acceptable salts thereof, to a process for their manufac-ture, to a composition comprising said compounds and to their use as a medicament.
Patent CA-1147160-A (CA)
Inventor: KROHN DUANE D
IPC: G01L7/04
Filed: 1981-05-25
Granted: 1983-05-31
Abstract: Docket: 5050-346 FLUID PRESSURE SENSOR                 ABSTRACT OF THE DISCLOSURE     Apparatus is disclosed for sensing fluid pressure by mechanical flexure of a tube pair of the Bourdon tube, wherein the tubes forming the pair are interconnected and form a part of the fluid flow path, and where the pressure may be sensed during both dynamic and static fluid flow conditions.