baber/WOPTO huggingface dataset:
Patent CA-1124734-A (CA)
Inventor: KLEEMANN AXEL
IPC: C07C233/47
Filed: 1978-12-15
Granted: 1982-06-01
Abstract: ABSTRACT OF THE DISCLOSURE           The present invention provides in a process for pro-ducing 2-acetamideocinnamic acid and substituted 2-acetamid-cinnamic acids which comprises reacting glycine with an aro-matic aldehyde in the presence of acetic anhydride and sub-sequent treatment with water, the improvement in which the reaction is carried out in the presence of a tertiary amine.
Patent CA-1106155-A (CA)
Inventor: SKINNER LAWRENCE A
IPC: B02B1/04
Filed: 1978-12-22
Granted: 1981-08-04
Abstract: 937-13SF KK:290 LIQUID CONTACTING APPARATUS ABSTRACT OF THE DISCLOSURE An apparatus for uniformly, downwardly moving in a vessel a compact bed of solid particles in contact with a liquid. Within the vessel there is provided a rotatable lower disc means which has a radially extending opening for the passage of solids therethrough. The lower disc means carries a member adjacent the opening for directing solids through the opening during rotation of the lower disc. This member preferably extends above the lower disc means. Means are provided to maintain the liquid within the vessel while the solid particles pass out of the bottom portion of the vessel. A rotatable upper disc means having a radially extending opening may be present to distribute solids charged to the vessel onto the upper surface of the bed of solid particles.
Patent CA-1088752-A (CA)
Inventor: BROWN DONALD J
IPC: B24C3/06
Filed: 1979-03-06
Granted: 1980-11-04
Abstract: ABSTRACT OF THE DISCLOSURE            An abrasive surface treating device includes a gun connected to a pressurized air source, a housing containing a supply of abrasive material, an abrasive delivery line connected to the gun and having an aperture adjacent the housing outlet, a shroud to capture spent abrasive, and a vacuum source to draw spent abrasive and debris from the shroud back to the interior of the housing.  The delivery of air at high velocity through the gun draws air through the abrasive delivery line via the aperture and thereby draws abrasive from the housing into the air stream flowing from the aperture to the gun so that the abrasive may be propelled against a work surface. The effective size of the aperture may be changed to alter the flow rate of various abrasive materials.  In addition, the gun and abrasive delivery line may be connected to an adapter which, in turn, receives a shroud member having a configuration selected in accordance with the shape of the work surface.
Patent CA-1104320-A (CA)
Title: Corner assembly for wall panels
Inventor: MARTIN MULFORD JR
IPC: E04B2/82
Filed: 1979-03-08
Granted: 1981-07-07
Abstract: ABSTRACT    A covering and sealing assembly for concealing and sealing the gap between a pair of edge adjoining wall panels which are disposed at an angle to each other, such as at a corner.  The assembly includes an exterior trim piece, a supporting member for the exterior trim piece, fastening means to tighten the supporting and clamping members together to squeeze the edges of the panels at the corner and to thus provide a structural tie therebetween, and an interior trim piece which snaps over the free vertical edges of the clamping member and hides the fastening means and the clamping member. The structural tie between the two corner panels is effected by the squeezing action of the legs of the supporting member and of the clamping member upon the faces of the adjoining wall panels at the points of contact between the faces and the supporting and clamping members.
Patent CA-1147437-A (CA)
Inventor: AHLBOM STEN H N
IPC: B66F9/24
Filed: 1979-04-27
Granted: 1983-05-31
Abstract: AB VOLVO     "Device for orienting a lifting means, for example, in relation to a load"                 ABSTRACT OF THE DISCLOSURE     A device for orienting a movable object such as a lifting means in a certain position relative to a second object such as a load, said device having light-emitting means for illuminating the second object so that an image with lighter and darker fields is created thereon, a photoelectric detector movable together with the movable object to scan said image, electronic control equipment connected to the detector for receiving signals therefrom, and operating equipment for the movable object, connected to the control equipment to receive signals therefrom and to orient the movable object,dependent on the signals of the photoelectric detector,to the control equipment.
Patent CA-1074458-A (CA)
Inventor: ROBILLARD DAVID R
IPC: H05K3/00
Filed: 1979-07-12
Granted: 1980-03-25
Abstract: Abstract of the Disclosure A semiconductor integrated circuit device of the beam lead type having a semiconductor interconnection substrate with apertures for inte-grated circuit chips therein and with metallization patterns having sharply pointed ends for penetrating oxide layers over the bonding pads of the chips and for making electrical connection thereto.  Devices thus produced may be assembled and tested and failed chips replaced as necessary before the chips are ultrasonically welded to the interconnection metallization and before final fabrication of the device.  The invention also includes a method for producing an interconnection substrate in which a plurality of conically shaped holes are etched into a semiconductor wafer having sharp points within the body of the wafer.  A metal layer is deposited over the surface of the semiconductor wafer filling the etched holes.  Sharp points are thus formed on the metal in the etched holes.  Apertures are then etched in the semicon-ductor wafer and the metal layer etched as required to provide sharply pointed connecting probes suspended above apertures in the semiconductor wafer.
Patent CA-1118581-A (CA)
Title: Alumine hautement reactive, son procede de  preparation et son application a la preparation  d'hydroxychlorure d'aluminium
Inventor: PAJOT MICHEL
IPC: C01F7/30
Filed: 1979-07-25
Granted: 1982-02-23
Abstract: L'invention concerne une nouvelle alumine hautement réactive et son procédé de préparation. L'alumine selon l'invention est caractérisée en ce qu'elle possède une structure amorphe et en ce que sa surface spécifique est supérieure à 600 m2/g. Elle est préparée par décomposition thermique du carbonate double d'aluminium et d'ammonium de formule A1 NH4 CO3 (OH)2 à une température comprise entre 200 et 500.degree.C. Elle entre dans la préparation d'hydroxychlorures d'aluminium de formule Al2 (OH)x C16-x.
Patent CA-1120831-A (CA)
Inventor: YAMAGATA MITSUKUNI
IPC: C21D9/08
Filed: 1979-08-29
Granted: 1982-03-30
Abstract: ABSTRACT OF THE DISCLOSURE:     The method of producing steel pipe material for an oil well is characterized in that, as for the chemical composi-tion of steel, B contained steel is adopted avoiding the addition of Ti which increases the values of non-metallic inclusions to decrease machinability, the value of N is limited to not more than 0.003$ to be decreased in content of nitrides, coarse crystal grains due to the decreased content of N are prevented through austenizing of steel under rapid heating, so that such a steel pipe material for an oil well can be obtained that which has resistance to sulfide stress corrosion in addition to satisfactory strength and machinability.
Patent CA-1112944-A (CA)
Inventor: WILKINS RICHARD S
IPC: F02B1/04
Filed: 1979-09-05
Granted: 1981-11-24
Abstract: ABSTRACT OF THE DISCLOSURE       A submersible pump system is disclosed which uses a submersible internal combustion engine as the drive means for the pump. The system is ideally suited for use in installations employing conventional submersible pumps driven with electrical motors as an auxiliary or standby system which is designed to be employed during periods when the conventional pumps are inoperable, such as during an electrical power failure. In addition, the system is useful for pumping applications wherein electrical power is not available. The system of this invention comprises a watertight submersible enclosure having an internal combustion engine mounted therein. A submersible, centrifugal pump is mounted on the exterior of the enclosure, with the drive shaft of the pump extending into the enclosure through a water-tight seal therein and being connected to the output drive of the engine. A shroud is positioned between the engine and the interior sides of the enclosure so as to substantially surround the sides of the engine, with the lowermost end of the shroud being spaced from the bottom of the enclosure, so that a flow channel is formed extending downwardly between the enclosure and the shroud, around the lower end of the shroud, and upwardly through the inside of the shroud around the engine. First and second conduits or air ducts are attached to the upper ends of the shroud and the enclosure, respectively, and then extend upwardly, opening into the atmosphere. Fan means driven by the engine circulates atmospheric air downwardly through the outer conduit, through the flow channel formed by the shroud, and back up to the atmosphere through the inside conduit. Means are provided on the engine for drawing combustion air from the air circulated through the system by the fan means, while exhaust from the engine is released to the upward flow of air in the inside conduit.
Patent CA-1130940-A (CA)
Title: Current supply circuit for telephone  exchange
Inventor: TOKUNAGA MICHIO
IPC: H04M19/00
Filed: 1979-09-20
Granted: 1982-08-31
Abstract: ABSTRACT OF THE DISCLOSURE         A current supply circuit for a telephone exchange is disclosed in which a current-supplying current amplifier series-connected between a power supply and a load amplifies an output current of an input current supply circuit, and a driving current amplifier for driving the current-supplying current amplifier is controlled by an output of an output voltage detector parallel-connected with the load in a negative-feedback fashion to set the differential mode output impedance of the current supply circuit at a large or small value in accordance with frequency and to set the common mode output impedance at a small value; and in which a part of the output voltage detector for connecting the load to the driving current amplifier includes a diode for preventing a direct current from flowing in a opposite direction to that of a direct current from the power supply in order to suppress, independently of the state of the load, a current which flows from the load side into the driving current amplifier, whereby an increase in current is restricted and an on-off control can be conducted in a short time without impairing an essential function of the current supply circuit.
Patent CA-1131404-A (CA)
Title: Synergistic microbicidal mixtures of  4-isothiazolin-3-ones and quaternary ammonium salts  for use in oil field injection water
Inventor: LASHEN EDWARD S
IPC: E21B43/22
Filed: 1979-10-30
Granted: 1982-09-14
Abstract: Abstract of the Disclosure This invention relates to the use of 4-isothiazolin-3-ones and quaternary ammonium salts for use in inhibiting the growth and activity of sulfide-generating bacteria and/or the activity of aerobic micro-organisms.
Patent CA-1143474-A (CA)
Inventor: CARASSO MARINO G
IPC: G11B23/36
Filed: 1979-11-01
Granted: 1983-03-22
Abstract: 15.12.78                   1                     PHN 9283 ABSTRACT Disc-shaped optically readable record carrier used as a data storage medium.    A disc-shaped record carrier having an infor-mation track which is divided into a plurality of sec-tors per track circumference. Each sector is divided into a data section, in which the data can be recorded, and a synchronizing section. This synchronizing section consists of an optically detectable relief structure and comprises an indicator portion and an address por-tion. The address portion contains the information about the track number and the sector number. The in-dicator portion serves to define the beginning of the address portion unambiguously and for this purpose has such a relief structure that the indicator signal pro-duced after cooperation with the radiation beam has a frequency which is clearly distinguishable from signal components resulting rfrom the address portion.
Patent CA-1130057-A (CA)
Inventor: BATTRELL CHARLES F
IPC: C11D3/00
Filed: 1979-11-09
Granted: 1982-08-24
Abstract: FABRIC SOFTENING COMPOSITIONS                 ABSTRACT   Fabric softening compositions are described containing a combination of an anionic surfactant and a complex of certain smectite clays with certain organic amines and their salts and certain quaternary compounds. The compositions provide fabric softening to laundered fabrics during the rinsing operation or can be incorpor-ated into detergent compositions to provide fabric soften-ing through the wash.
Patent CA-1131029-A (CA)
Inventor: SHINTANI TAKESHI
IPC: C03C15/00
Filed: 1979-11-15
Granted: 1982-09-07
Abstract: ABSTRACT OF THE DISCLOSURE An improved method of preparing optical fiber preforms and optical fibers by so called rod-in-tube method, wherein before collapsing a tube to heat-adhere to a rod, a specific glass surface treating agent and oxygen gas are flowed through the clearance between the rod and the tube maintained at a high temperature, whereby an optical fiber preform free from imperfections at the interface between the rod and the tube can be produced so as to give optical fibers of low-loss. As the above glass surface treating agent, those materials are employed which satisfy the following criteria: (i) the hydrogen content thereof being not more than about 1 % by weight, and (ii) the substances, produced therefrom in the presence of oxygen gas at a high temperature, having a boiling point or sublimation point of not more than the temperature required for collapsing the tube.
Patent CA-1133005-A (CA)
Inventor: REICHMANN WOLFGANG
IPC: C07C273/18
Filed: 1979-12-14
Granted: 1982-10-05
Abstract: ABSTRACT OF THE DISCLOSURE     A process for the preparation of polyisocyanates containing biuret and/or higher polyuret groups by reacting secondary diamines with diisocyanates characterized in that the reaction is carried out in the presence of catalytic quantities of strong acids which form mixed carbamic acid anhydrides with isocyanates.   Alternatively  the secondary diamines may be reacted with organic diisocyanates in the absence of catalysts to form a urea diisocyanate which is then reacted in the presence of catalytic quantities of strong acids which form mixed carbamic acid anhydrides either with the same diisocyanate used in the first step or a second diisocyanate.  The invention also relates to the polyisocyanates containing biuret and/or higher poly-uret groups obtainable by this process.
Patent CA-1123912-A (CA)
Inventor: KINDELL BO
IPC: H03K17/723
Filed: 1979-12-21
Granted: 1982-05-18
Abstract: APPARATUS FOR FIRING SERIES-CONNECTED THYRISTORS     Abstract of the Disclosure An apparatus for simultaneously fixing a plurality of series-connected thyristors having a control pulse trans-former for each thyristor.  Each transformer has first and second primary windings,  with the first windings being connected  in series with each other, and the series combination being connected through an auxiliary thyristor to a capacitor which is charged from a DC voltage source.  The second primary windings are also connected  in series with each other with the series combination being connected to a DC source through a tran-sistor switch means. In half of the transformers the two primary windings have the same polarities, while in the other half they have opposite polarities.  To fire the thyristors, the auxiliary thyristor is caused to be fired causing the transformers to provide a steep pulse with a high amplitude to the thyristors,  At the end of the initial pulse, the transistor switch means is activated and the transformers thereafter deliver a continuous control current having a lower amplitude to the thyristors.
Patent CA-1139807-A (CA)
Inventor: SAUER HANS
IPC: H01H51/22
Filed: 1980-02-18
Granted: 1983-01-18
Abstract: Abstract of the Disclosure A polarized electromagnetic relay includes two contact springs extending substantially parallel to each other.    One  of the contact springs forms a movable contact for cooperation with a fixed contact.  In the contacting condition, the free ends of the contact springs touch each other.  A first actuator portion of a relay armature serves to move the contact springs into the contacting position, and a second actuator portion serves to move the contact springs in the opposite direction to open the contact. The ratio of the spring lengths between the second actuator portion and the movable contact, divided by the thickness of this length  of contact spring is smaller than the ratio of the spring lengths between the first actuator portion and the touching location of the two contact springs, divided by the thickness of this length of contact spring.  A contact spring arrangement is thereby achieved in which an essential portion of the permanent-magnetic pull of the armature is stored in the contact springs as the contact force.  At the same time, a positive and forced contact opening is achieved with a contact clearance unaffected by contact spring bending.
Patent CA-1127629-A (CA)
Inventor: RICHTER HENNING
IPC: F24J/
Filed: 1980-03-21
Granted: 1982-07-13
Abstract: ABSTRACT          In order to guarantee a low floor space required and nevertheless render a closed circuit system possible with a device for absorbing the temperature of the earth, particularly for operating a heat pump, thereby at the same time high, steady final temperatures of the medium to be heated are to be guaranteed, a probe with a tube body extending into the ground like a column is used, the end of which pointing to the ground is sealed, and in the interior of which an inner tube is arranged, the diameter of which is smaller than the inside diameter of the tube body, for forming the circulation jacket. The inner tube is provided at its bottom end with an overflow opening into the circulation jacket. It is advantageous to seal the tube body at its end that points to the ground by means of a removable piston. This enables the tube body to be entered into the ground as lost boring rod during a wash boring operation.
Patent CA-1104039-A (CA)
Inventor: COOKE BRIAN A
IPC: C23C22/07
Filed: 1980-03-26
Granted: 1981-06-30
Abstract: ABSTRACT OF THE DISCLOSURE          A continuous process of producing a phosphate coating on a ferrous metal substrate which comprises treating the ferrous metal substrate with an acidic solution of zinc phosphate in the presence of chlorate ions and adding to the solution as coating proceeds a proportion of a rapid-acting secondary oxidant for ferrous ion selected from alkali metal nitrites, ammonium nitrate, hydrogen peroxide, compounds which liberate hydrogen peroxide under acidic conditions, sodium hypochlorite and peroxy diacid salts, which proportion is sufficient to maintain the concentration of ferrous ion at less than 112 parts per million parts of the solution, there being present in the acidic solution when in the steady state a proportion of the said secondary oxidant of from 0 to 0.6 millimoles per litre of the solution.
Patent CA-1127690-A (CA)
Inventor: WAFER JOHN A
IPC: H01H9/46
Filed: 1980-05-15
Granted: 1982-07-13
Abstract: 47,897 ABSTRACT OF THE DISCLOSURE A circuit interrupter characterized by a sta-tionary contact and a movable contact which are operable along a predetermined path between open and closed posi-tions to establish an arc, an arc chute for extinguishing the arc, a pair of spaced apart conductors extending from the  movable  contact  to  the  arc  chute which conductors provide parallel current paths for conducting an arc away from the contacts and into the arc chute.
Patent CA-1161920-A (CA)
Inventor: BELLET JEAN-MARIE
IPC: G01K7/24
Filed: 1980-05-28
Granted: 1984-02-07
Abstract: An electronic thermometer comprises a temperature sensitive resistance element to be placed in contact with the area of which the temperature is to be measured. A first relaxation oscillator to which the resistance element belongs, provides a frequency depending on the temperature to be measured. A reference oscillator provides a reference frequency. The first frequency is counted in a counter during a period provided from the reference frequency by a divider. If a temperature or power supply drift affects the reference frequency, the same drift affects in the same direction the counted frequency, so that during the counting the effect of the drift is substantially cancelled. A memory and a comparator record the result of the counting only if it is higher than the preceding result, so that the thermometer operates as a maximum thermometer. The recorded result is provided to a decoder which controls a display device.
Patent CA-1125135-A (CA)
Title: Smoking article package with matches
Inventor: BRENNER BEAT R
IPC: B65D85/10
Filed: 1980-06-02
Granted: 1982-06-08
Abstract: ABSTRACT OF THE DISCLOSURE     A smoking article package has an insert, which carries matches, inserted between the package box and the packaging or wrapper for retaining the smoking articles fresh.  Beneath the matches there is arranged upon the insert a striking or friction strip.  The box has at its outer edges a passage through which there are accessible the ends of the matches.  This passage can be closed by a cover.  In order to be able to remove a match from the package, the end of the match is engaged at the region of the passage and pulled.  During withdrawal of the match, the match head wipingly passes over the striking or friction strip, thereby lighting the match, which then is ready to light-up the smoking article.
Patent CA-1163676-A (CA)
Inventor: HUBER WILLI
IPC: H03K3/57
Filed: 1980-08-07
Granted: 1984-03-13
Abstract: ABSTRACT       A diode-capacitor multiplier circuit usable with an electro-static spray gun has two different values of capacitors.  By changing the ratio of the number of larger size capacitors to the number of smaller size capacitors, the amount of energy stored in the multiplier circuit may be increased or decreased changing the proba-bility of ignition, and also the quality of the coating received by the subject article.
Patent CA-1139861-A (CA)
Inventor: BAUMANN EDUARD
IPC: H02J13/00
Filed: 1980-08-26
Granted: 1983-01-18
Abstract: A B S T R A C T          In a remote control system with the production of a remote control signal by a temporary short circuit on the secondary side of a transformer during an influencing period about a zero point transition of the alternating mains voltage, results in a considerable improvement in the reception-side recognition of the remote control signal by a different method of determination, to that of the prior art, of the reception-side comparison period in relation to its start and its duration.  Correlation of the comparison period to the course of the reception-side alternating mains voltage before the mains voltage zero transition to be monitored is provided.          This system may be used in remote control technology using signal transmission on the power network.
Patent CA-1105895-A (CA)
Inventor: DEIFEL ALFRED L
IPC: B62B5/06
Filed: 1980-11-05
Granted: 1981-07-28
Abstract: ABSTRACT OF THE DISCLOSURE        A pallet truck for moving articles is disclosed having a load-bearing chassis which can be elevated or lowered. A hydraulic lifting mechanism is provided for lifting the chassis. The lifting mechanism comprises at least one piston which is fully immersed in the hydraulic fluid employed and a pump with at least one pump piston for actuating the lifting piston. Valve control means are provided in the steering head base which also carries the steering handle. The  steering handle is used to actuate the pump piston. The valve control means can be manipulated by the operator for the pallet truck so as to select lowering or raising of the chassis. A neutral position in which the pump is disconnected from the lifting mechanism is also provided. A second valve control means permits the pump circuit to adapt to various loads. The truck in accordance with the present invention is of particularly durable construction and can easily be controlled by the operator.