baber/WOPTO huggingface dataset:
Patent CA-1044724-A (CA)
Inventor: WEINHOLD KARL
IPC: F16L25/12
Filed: 1976-07-23
Granted: 1978-12-19
Abstract: ABSTRACT OF THE DISCLOSURE          A pipe connection for connecting two pipe ends includes a first collar on a first pipe end and spaced from the end of said first pipe end and a second collar on a second pipe end and in the form of a spherical segment.  A sleeve on the second pipe end extends around the end of the first pipe end and has an inwardly directed flange engageable behind the second collar.  A first radial sealing means is provided between the first pipe end and the sleeve.  A second radial sealing means is provided between the second collar at its largest diameter and the sleeve and a third collar is provided exteriorly on the sleeve.  A releasable fastening means is engageable behind the first and third collars to hold the sleeve and thus the second pipe end and the first pipe end together.  The pipe connection acquires pivotability of one end of the pipe in the region of the socket part as a result of the proposed construction.  Thus, undesirable inexactitudes of the position or bends in the pieces of pipe may be eliminated or a desired change of direction in the path of the pipe may be achieved.  A particular advantage may be seen in that the inner wall of the sleeve may remain cylindrical and thus there is no increase in manufacturing costs.          A reliable sealing action may be obtained in each case.
Patent CA-1054190-A (CA)
Inventor: KASSELMANN JOHN T
IPC: B60T13/16
Filed: 1976-08-31
Granted: 1979-05-08
Abstract: TOW VEHICLE - TRAILER BRAKING SYSTEM      ABSTRACT OF THE DISCLOSURE     A control valve for use in a tow vehicle-trailer braking system has a first bore connected to a master cylinder and a second bore with an entrance port connected to a pump in the tow vehicle for receiving a fluid under pressure, an exit port connected to a power steering control operated by the fluid under pressure, and a control port connected to a servomotor in the trailer.  A first piston is located in the first bore and a second piston is located in the second bore.  A lever which is located on a pivot pin connects the first piston with the second piston.  When the operator applies a braking force to operate the master cylinder, the first piston receives a hydraulic force which acts on the lever to move the second piston and direct a portion of the pump fluid under pressure from the exit port to the control port to activate the servomotor brakes in the trailer.
Patent CA-1070165-A (CA)
Inventor: DELLIGATTI PATRICK
IPC: B41F17/16
Filed: 1976-09-13
Granted: 1980-01-22
Abstract: Abstract A bottom coder is provided in which the printing head and its associated inking system are mounted in a drawer type support whereby the top of the device is clear of obstructions such as ink reservoirs and whereby the inking and printing system may be quickly and easily exposed to facilitate cleaning, adjustment and most importantly rapid and easy conversion of the copy to be printed to code the desired information on products or packages passing through the machine.
Patent CA-1115503-A (CA)
Title: Method and apparatus for moulding hydraulic  cement or the like material
Inventor: ITO YASURO
IPC: B28B21/40
Filed: 1977-03-09
Granted: 1982-01-05
Abstract: Abstract of the Disclosure Hydraulic cement or the like is poured into a closed mould under a reduced pressure condition to a level slightly higher than a predetermined level.          Coarse aggregate and steel rodes are prepacked in the mould.  After pouring the pressure in the mould is in-creased to atmospheric pressure or a higher pressure to force the hydraulic cement above the predetermined level back into the space below the level thus compacting the poured in hydraulic cement.  A cushion device is provided for the pouring device.  An overflow tank is connected to the mould to observe the level of the poured cement.  The pressure in the overflow tank is also decreased during pouring and increased after pouring.  In this way substantially all the excess water and entrained air is removed from the hydraulic cement before it is poured. By reducing the pressure in the mould pouring of hydraulic cement into the mould is facilitated.  The produces so formed are dense and have high mechanical strength.
Patent CA-1070813-A (CA)
Inventor: CLARK WILLIAM R
IPC: H02H3/20
Filed: 1977-03-29
Granted: 1980-01-29
Abstract: ABSTRACT OF THE DISCLOSURE An over-voltage protection apparatus includes an over-voltage detector measuring the voltage between each energized conductor and a neutral or ground line associated therewith series connected between an A.C. power source and a utilization device and an over-current protection device, such as a circuit breaker, to disconnect the conductors from the energy source in the event the voltage on any one of the energized lines exceeds a pre-determined threshold voltage.  Suitable over-voltage detectors consist of any device which is non-conductive for all input voltages less than a threshold voltage and are conductive after the input voltage has exceeded the threshold voltage. The over-voltage protection apparatus described is applied to A.C. power circuits having at least one phase and at least two wires.  Use of the apparatus to also provide protection in the event of an open neutral line condition, when unequal loads are present between at least two energized conductors and the neutral line is also described.
Patent CA-1049073-A (CA)
Inventor: BRIDIGUM ROBERT J
IPC: B60T15/36
Filed: 1977-04-19
Granted: 1979-02-20
Abstract: EMERGENCY BRAKE VALVE DEVICE FOR RAILWAY VEHICLES                ABSTRACT OF THE DISCLOSURE An improved simplified emergency brake valve device including a relay valve portion responsive to brake pipe pressure reduction at an emergency rate for actuating a logic valve portion which, in turn, when actuated, causes operation of a vent valve portion via which the brake pipe is opened to atmosphere for effecting reduction of brake pipe pressure at an emergency rate at the succeeding car in the train, thereby propogating such reduction of brake pipe pressure throughout the train for effecting an emergency brake applica-tion thereon.
Patent CA-1089939-A (CA)
Inventor: FOX DAVID A
IPC: G01R19/165
Filed: 1977-05-16
Granted: 1980-11-18
Abstract: CONTROL CIRCUIT INITIATING CONDUCTION OF AN OPTO-ISOLATOR UNIT                    ABSTRACT OF THE DISCLOSURE         A control circuit for turning on an optical iso-lation unit only when an input signal is at least of a given magnitude or threshold level.  The circuit exhibits a resis-tive input below the threshold level and a constant current characteristic above the threshold.  An arrangement of transistors is provided to bypass the opto-isolator below the threshold and to drive the opto-isolator with substan-tially constant current above the threshold.
Patent CA-1084734-A (CA)
Inventor: GEMMEL GOERAN
IPC: C22C38/00
Filed: 1977-05-27
Granted: 1980-09-02
Abstract: ABSTRACT OF THE DISCLOSURE      Ferritic, stabilised, stainless and corrosion-resistant chromium-molybdenum steels with a carbon content of from 0.01 to 0.025%, a nitrogen content of from 0.005 to 0.025%, a chromium content of from 20.0 to 30.0%, a molybdenum content of from 3.0 to 5.0%, manganese and silicon contents of from 0.02 to 1.0% in each case and vanadium, tungsten, cobalt and aluminum contents of at most 0.25% in each case and also with a nickel content of from 3.2 to 4.8%, a copper content of from 0.1 to 1.0%, a titanium content of from 0.2 to 0.7% and/or a niobium content of from 0.2 to 1.0%, the rest being iron with the usual impurities, alloying additions of boron and/or zirconium being permitted in quantities which correspond to the prior art.  Such stabilised, ferritic, chromium-molybdenum steels have low transition temperatures reducing the likelihood of their becoming brittle upon welding.
Patent CA-1080070-A (CA)
Inventor: STRAZA GEORGE T
IPC: F24S10/50
Filed: 1977-05-30
Granted: 1980-06-24
Abstract: ABSTRACT OF THE DISCLOSURE         A solar heating roof shingle roof structure which combines the functions of a roof and a fluid conducting solar heating panel.  Each shingle is a hollow body of the general size and configuration of a conven-tional shingle, and is provided with a fluid inlet socket at the upper end and a fluid outlet plug at the lower end with a skirt at the lower end over-lapping the plug.  Shingles are assembled in an overlapping array to cover a roof structure, with interconnections between the inlets and outlet of succes-sive longitudinally positioned shingles to provide fluid paths through the complete array.  An inlet manifold is positioned at the upper end of the array or in the alternative contained in a cap used at the peak of the roof and an outlet manifold is connected to the outlet of the lowest row of shingles.
Patent CA-1074876-A (CA)
Inventor: ENDRES THOMAS E
IPC: H03F3/24
Filed: 1977-06-17
Granted: 1980-04-01
Abstract: TUNED RADIO FREQUENCY AMPLIFIER WITH BACK TO BACK          VARACTOR DIODES CONNECTED THROUGH A COMMON CATHODE LEAD            Abstract of the Disclosure A tuned radio frequency amplifier includes signal amplification means having an input and an output and first and second pairs of varactor diodes t each pair having an inductor connected across the anodes and a common tuning voltage supplied to the common cathode.  The inductor of the first varactor diode pair provides an input for a signal from an antenna; and the inductor across the second varactor diode pair provides an output for the amplified signal.  Means are provided for connecting the input of the signal amplification means to the common cathode of the first varactor diode pair and the output of the signal amplification means to the common cathode of the second varactor diode pair, whereby the range of tuning voltage required for a specified range of tuned frequencies is smaller than if the input and output of the signal amplification means were connected across the anodes of the varactor diode pairs.
Patent CA-1073045-A (CA)
Inventor: HEINTZ WALTER K
IPC: H01M2/02
Filed: 1977-06-22
Granted: 1980-03-04
Abstract: ALKALI METAL BATTERY STRUCTURE                 ABSTRACT OF THE DISCLOSURE         The invention is embodied in a structure for con-taining an alkali metal battery.  A closed metal housing includes a flange having an opening therethrough.  An elec-tronically and ionically insulating ceramic member is bonded to an exterior surface of the metal housing and encircles the opening through the flange thereby to define a passage-way which is an extension of the opening.  An electrically insulating, cation-permeable barrier to mass liquid trans-fer has an interior volume and an exterior surface area.          The cation-permeable barrier is bonded to the ceramic member in such a manner that the interior volume of the metal housing, the passageway defined by the ceramic member and the interior volume of the cation-permeable barrier form a first closed electrode reaction zone.  A container, including a structure bonded to the ceramic member, defines a closed container which encloses the exterior surface area of the cation-permeable barrier, the volume between the interior surface area of the container and the exterior surface area of the cation-permeable barrier forming a second closed reaction zone.
Patent CA-1072842-A (CA)
Inventor: AOYAMA SYUNICHI
IPC: F02M25/07
Filed: 1977-07-22
Granted: 1980-03-04
Abstract: ABSTRACT OF THE DISCLOSURE    An EGR control valve is closably disposed in an EGR passageway connecting an intake passageway and an exhaust gas passageway which leads to an internal com-bustion engine.  Th EGR control valve is operated to control recirculated exhaust gas flow by varying the exhaust gas pressure in a chamber between a restriction disposed in the EGR passageway and the EGR valve, in accordance with variations in a venturi vacuum in the intake passageway to prevent the recirculated exhaust gas flow from being affected by the exhaust gas pressure in the EGR passageway upstream of the chamber.  Further-more, the EGR control valve is arranged to be controlled so that the amount of the recirculated exhaust gas flow is reduced during high engine speed and low load engine operation.
Patent CA-1088681-A (CA)
Inventor: ZLOKARNIK MARKO
IPC: B01F3/04
Filed: 1977-07-29
Granted: 1980-10-28
Abstract: Abstract of the Disclosure In an injector for the dispersion of a gas into a liquid and comprising a gas inlet, a liquid inlet, and a mixing chamber communicating with said inlets and having an inlet and an outlet, the improvement wherein the inlet of said mixing chamber is substantially round in cross-section and the outlet is substantially slit-shaped, whereby the kinetic energy of propulsion can be utilized with high efficiency to produce very fine gas bubbles.  Advantageously the cross-sectional area at the outlet of the mixing chamber is about 5 to 25 times the cross-sectional area of the liquid nozzle throat, the liquid nozzle has a throat diameter d diverging to its discharge at an angle of about 5 to 10°, the mixing chamber beginning at a distance from about 1 to 3 d from the end of the inlet, the inlet of the mixing chamber being circular of a diameter of about 3 d, the mixing chamber having a length of about 5 d to 20 d, and the height of the slit being about 1 d. The in-jector is especially suited for use in treating liquid effluents and in fermentation processes.
Patent CA-1038831-A (CA)
Inventor: CRAWFORD G ROGER
IPC: B65B29/00
Filed: 1977-08-02
Granted: 1978-09-19
Abstract: TITLE:  LOOSE FILL CELLULOSE INSULATION         MATERIAL PACKING MACHINE                   Abstract of the Disclosure A machine for packing compressible low density loose fill cellulose insulation material into flexible bags.  A machine includes a hopper for receiving bulk quantities of loose fill insulation material.  A metered feed mechanism is sequentially operable to discharge measured amounts of the loose insulation material from the hopper to an upright charging tube.  Below the tube is mounted a container receiving mechanism and a container enclosure mechanism.  Empty flexible insulation receiving bags are mounted to the receiving mechanism and located in position directly below the charging tube.  The enclosure mechanism is operated to close about the periphery of the empty container while a compactor mechanism operates to compress the preselected amount of insulation into the waiting container.  Once the con-tainer is packed, the enclosure mechanism opens to allow the filled container to be removed and an empty container mounted in its place.
Patent CA-1085249-A (CA)
Inventor: CURRAN ROGER
IPC: F41B11/62
Filed: 1977-11-18
Granted: 1980-09-09
Abstract: Abstract of the Disclosure Disclosed is a gas fired  gun  having a valve body for communicating gas under pressure from a gas cartridge to the  gun barrel to fire a projectile. The  gun  has a frame carrying a chamber for receiving a gas cartridge and a lever for urging the cartridge in the chamber against a conical element carried in a stepped bore in the valve body. retainer ring having triangular shaped projections disposed in a direction toward the tip of the conical element is provided about the element. A seal seats on a stepped shoulder in the bore and a retainer nut bears against the seal which, in turn, bears against the triangular projections on the ring to retain the conical element in the bore. Upon actuation of the lever, the end of the cartridge is fully inserted into the bore and pierced by the element. When the lever is in final position, the cartridge backs off the piercing element to enable gas flow through the seal between the projections of the retainer ring and the element into the valve body passage.
Patent CA-1105020-A (CA)
Inventor: HOEHN HANS
IPC: C07D471/04
Filed: 1977-12-06
Granted: 1981-07-14
Abstract: Various 1,5,6,11-tetrahydrobenzo5,6!cyclohepta1,2-b!-pyrazolo4,3-el!pyridine derivatives and their salts of the formulas and wherein R1 is lower alkyl, phenyl, or phenyl-lower alkyl: R2 is hydrogen, lower alkyl or phenyl; R3 is hydrogen, halogen, or lower alkoxy; R4 is hydrogen, , or                alkyl; R5 is hydrogen or lower a1koxy; R6 is hydrogen,              ,              ,              , or ; n is an integer from 2 to 6; R7 and R8 are the same or different and each is lower alkyl or R7 and R8 taken together with the N-atom form a heterocyclic ring of the formula             ,              , or              wherein R9 is hydrogen or lower alkyl; R10 and R11 are the same or different and each is hydrogen or lower alkyl or R10 and R11 taken together with the N-atom form a heterocyclic ring of the formula             ,              , or                wherein R9 is as defined above; are disclosed.  These compounds possess useful antiinflammatory activity as well as psychotropic activity.
Patent CA-1062633-A (CA)
Inventor: CHIERICI OSVALDO F
IPC: B61H1/00
Filed: 1977-12-30
Granted: 1979-09-18
Abstract: BRAKE ROD SUPPORT ARRANGEMENT       FOR RAILROAD CARS                        Abstract of the Disclosure A support arrangement for brake rods of railroad car brake rigging comprising a U-shaped support member suspended from the underside of the car, a slotted sleeve snap fitted on the brake rod and located to rest on the bight portion of the support member, with the slot facing upwardly, and a retainer member comprising a shank portion received in said slot and having its end portions extending beyond the ends of the sleeve and enlarged to embrace the upwardly facing side of the brake rod on either side of the sleeve slot, with the retainer member end portions being bonded to the brake rod.  The sleeve is formed from an ultra high molecular weight polymer material that is of dry self-lubricating nature and resists adherence thereto of foreign materials and serves as a sound deadener and energy absorber.  Such material is also characterized by its polishing action on the brake rod support surface it rides on to reform same to define a mirror finish that substantially inhibits further wear on the support during use.
Patent CA-1092723-A (CA)
Inventor: CHANG LEROY L
IPC: H01L29/76
Filed: 1978-01-10
Granted: 1980-12-30
Abstract: Abstract of the Disclosure This high speed semiconductor device is similar to a trans-istor in that it is a three terminal device, but differs from such because, among other things, the dominant mechanism for transfer of charge from one region to another is tunneling.  The device is com-prised of three semiconductor regions, which can be characterized as the emitter, base and collector regions.  The emitter and collector regions have a first conductivity type, and the base region has the opposite conductivity type, where both the base-emitter and base-collector junctions are heterojunctions.  The base region is suf-ficiently thin that change carriers can tunnel therethrough, ?he bandgap of the base region being so located with respect to the band-gap of the emitter and collector regions that very low leakage currents result.  The base region has a small resistance due to its heavy doping which is greater than the doping of both the emitter and the collector.  Both the valence band and the conduction band in the emit-ter and collector regions are shifted in the same directions with re-spect to the valence band and conduction band of the base region (i.e., the energy gaps of the emitter and collector are shifted in the same direction with respect to the energy gap of the base region and overlap with the energy band of the base to produce band-edge discontinuities .DELTA.Ec and .DELTA.Ev).  Any materials yielding the proper energy band diagram can be used; for example. Si-GaP and alloys of GaAsSb-InGaAs are particularly suitable.
Patent CA-1096584-A (CA)
Inventor: SUGAHARA YUJIRO
IPC: C01B21/42
Filed: 1978-03-28
Granted: 1981-03-03
Abstract: Abstract of the Disclosure A process for recovery of nitric acid comprising incorporating or absorbing waste nitric acid and/or a nitrate in an oil-absorbing inorganic carrier and forming a nitrate-carrier granule containing water in the form of a hydroxide, a hydrate or adsorption moisture in an amount sufficient to generate a vapor of nitric acid stably and being substantially non-sticky at decomposi-tion temperature of the nitrate; heating the formed granule while keeping the substantially non-sticky state in the granule to decompose the nitrate in the granule to a vapor of nitric acid; and recovering the generated vapor of nitric acid is disclosed.  According to this process, nitric acid can be directly recovered from waste nitric acid or a nitrate in the form of a vapor of nitric acid without substantial generation of nitrogen oxide gases by using a cheap and easily available inorganic carrier.
Patent CA-1070863-A (CA)
Title: Inflatable-deflatable pad and air control system therefor
Inventor: TRINGALI RICHARD C
IPC: A61G7/05
Filed: 1978-04-07
Granted: 1980-01-29
Abstract: Abstract An inflatable pad combined with an air control system for producing periodic inflation and deflation of that pad.  The pad is elongated and has at least two separate passages extending from one end portion of the pad to the other,  Such passages also having interlaced transverse portions extending in directions across the pad.  Each passage has a pair of terminal openings, one at each end of the pad, for the flow of air under pressure, such flow being controlled by a valve which not only alternates in directing air to inflate one passage and then the other, but also alternates the direction of inflation so that each passage is inflated alternately from its opposite ends.  In one embodiment, the valve operates to positively exhaust one passage while the other is undergoing inflation, the exhaust air being recirculated and utilized by the compressor which serves as the source of pressurized air.  Conservation and protection against over inflation may also be achieved by modifying the valve assembly to recirculate excess air, that is, air at a pressure greater than can be effectively or safely utilized by the pad.  In all forms, the pad is provided with perforations on one side thereof which form bleed ports for the leakage of pressurized air from the passages, such leakage not only contributing to controlled deflation of the passages but also resulting in cooling air being directed against the limb or body of a person in close proximity to the pad.
Patent CA-1101766-A (CA)
Inventor: PFEIL EMANUEL
IPC: G01N33/96
Filed: 1978-05-12
Granted: 1981-05-26
Abstract: HOE 77/B 011 - Ma 297 CONTROL-SOLUTION FOR DIAGNOSTIC DETECTION METHODS FOR            SUBSTANCES CONTAINED IN THE URINE     Abstract of the disclosure:      Composition for diagnostic detection of substances con-tained in the urine, characterized by that it contains a water-soluble acetyloacetonate and/or a water-soluble hexa-nitritocobaltate-(III)-salt.
Patent CA-1084297-A (CA)
Inventor: FROEHLICH JOHN A
IPC: G01N35/10
Filed: 1978-06-09
Granted: 1980-08-26
Abstract: AN AUTOMATIC FLUID SAMPLING TRANSPORT SYSTEM Abstract of the Disclosure There is described an automatic fluid sampling transport system for use in fields such as atomic absorption spectroscopy and liquid chromatography. The system described provides for circular tray sampling having an increased through-put capacity. This is accomplished by providing a system which allows the sampling of vials in concentric circles on the same carousel. The mechanism described synchronizes the raising and lowering of the sample probe to the incremental, rotational movement of the carousel and the rotational movement of the probe carrying means between successive sample vials in the various concentric circles. The mechanism is relatively sample and is adaptable to provide a plurality of such concentric circles of openings to expand the through-put capability of the system.
Patent CA-1088085-A (CA)
Inventor: SMITH WILLIAM E
IPC: C07D307/08
Filed: 1978-06-23
Granted: 1980-10-21
Abstract: ABSTRACT OF THE DISCLOSURE           An improved process for producing tetrahydro-furan from 1,4-butanediol, the improvement comprising carrying out the dehydration in the presence of a tungsten oxide catalyst.