baber/WOPTO huggingface dataset:
Patent CA-1072771-A (CA)
Inventor: PORTER GRADY T
IPC: B01D15/08
Filed: 1976-07-19
Granted: 1980-03-04
Abstract: METHOD OF DECREASING CHROMATOGRAPHIC COLUMN PLUGGING      BY ADDITION OF WATER TO THE CARRIER LIQUID                           Abstract of the Disclosure In the liquid chromatographic analysis of a sample containing two or more constituents which are chromatographically separable using an aqueous ether carrier liquid, an  effective  amount  of  water is added to the chromatographic carrier liquid thereby increasing the efficiency of the chromatographic separation and decreasing the incidence of chromatographic column plugging.  In a preferred embodiment, addition of a small amount of water to a tetrahydrofuran carrier liquid results in substantial improvement in the analysis of a sulfuric acid alkylation catalyst wherein a sample containing sulfuric acid and other chromatographically separatable organic materials is separated in order to measure the relative proportions of sulfuric acid and hydrocarbon or other materials within the sample.
Patent CA-1057669-A (CA)
Inventor: DOI TOSHITADA
IPC: H04R1/40
Filed: 1976-07-20
Granted: 1979-07-03
Abstract: ABSTRACT OF THE DISCLOSURE              A  sound pickup assembly comprising a parabolic reflector in the focal point of which is mounted a pickup and wherein the reverse side of the parabolic reflector is formed as a binaural sound pickup having a pair of microphones mounted on opposite sides of the curved surface generally on a horizontal plane and including a pair of dummy external ears mounted near the pair of microphones such that the pick-up can be used as a highly directive pickup utilizing the single micro-phone and parabolic reflector and wherein the unit can also be utilized for binaural pickup by utilizing the two antennas and dummy ears mounted on the back surface of the unit.
Patent CA-1052870-A (CA)
Inventor: KRAJEWSKI ZDZISTAW A A
IPC: H03L7/06
Filed: 1976-07-23
Granted: 1979-04-17
Abstract: ABSTRACT OF THE DISCLOSURE Disclosed is an electronic signal processing system for an alterna-ting voltage input signal.  A phase-locked loop network has an input adapted to receive the signal and produce an intermediate signal comprising a sub-stantially noise free sine wave with a phase equal to the average phase of the input signal.  The intermediate signal is applied to an input of a vari-able gain amplifier which produces an output signal proportional to the in-termediate signal, and an amplitude averaging loop network has the input signal and the output signal as its inputs and produces a biasing signal which is applied to a control input of the variable gain amplifier to maintain the output signal equal in amplitude to the average amplitude of said input signal.          The system can be used in a Wattson-Watt type radio direction finder to eliminate noise.
Patent CA-1061879-A (CA)
Inventor: DEANE DAVID W
IPC: G01N21/01
Filed: 1976-08-16
Granted: 1979-09-04
Abstract: ABSTRACT OF THE DISCLOSURE     Apparatus and method for inspecting the inside bottom surface of glassware for tramp glass by irradiat-ing said surface with light having an angle of incidence of approximately 15 degrees and sensing any light transmitted through said surface as an indication of the presence of tramp glass.
Patent CA-1047362-A (CA)
Inventor: POOL ELDERT B
IPC: F16K39/02
Filed: 1976-11-09
Granted: 1979-01-30
Abstract: IMPROVED BI-DIRECTIONAL PRESSURE BALANCED VALVE      Abstract of the Disclosure An improved bi-directional pressure balanced valve includes a body having a cylindrical valve chamber and a pair of flow passages intersecting the lower portion of the chamber.  An annular valve seat is located between the lower portion and a first of the flow passages and is coaxially aligned with the cylindrical valve chamber.  A main valve disc assembly is mounted for axial movement within the cylindrical valve chamber for selective engagement of a main disc thereof with the seat and further includes a concentric hollow shaft extending from the main disc away from the seat and terminating at a piston fitting which is slidably received within an upper portion of the cylindrical valve chamber.  A coaxially aligned valve stem extends from an operating mechanism located above the valve through the upper portion, the piston fitting and the hollow shaft to terminate at an auxiliary valve disc. An axial opening through the main valve disc assembly allows communication between a region above the disc assembly and a region below the main disc to substantially control fluid forces acting on the opposite sides of the main valve disc assembly to facilitate opening and closing of the valve regardless of the direction of the fluid flow through the valve. Control of the fluid forces is partially obtained through predetermined axial positioning of the auxiliary valve disc during operation of the valve stem to open and close the axial opening through the main valve disc assembly.  The improvement includes a deflecting device at the axial opening to prevent an over balancing of the main valve disc assembly when fluid flow from the first flow passage impinges on the axial opening during closure of the valve.  The preferred deflecting device includes a circular deflector plate which is mounted on the main disc to be centrally aligned with the axial opening and perpendicular thereto and having a diameter substantially larger than the diameter of the axial opening.     The diameter plate is parallel with the lower surface of the main disc and it is separated therefrom to require fluid entering the axial opening to first flow between the lower surface and the deflector plate.
Patent CA-1051767-A (CA)
Inventor: RYBAR VACLAV
IPC: F22B31/00
Filed: 1976-11-18
Granted: 1979-04-03
Abstract: ABSTRACT OF THE DISCLOSURE            A preheated fuel-air mixture is ignited, the flame is scanned, the burning mixture is introduced into the free upper level of a radiation substance charge, it is passed around heat exchange surfaces, and a glowing flameless combustion zone is produced in the charge; beyond this zone the combustion gases are passed around heat exchange surfaces having increased area, with changed rate of flow.  The apparatus is equipped with an ignition and flame scanning gap above this charge and with heat exchange tubes, divided into several branches past said glowing zone.
Patent CA-1045965-A (CA)
Inventor: SUZUKI YASUO
IPC: B60C9/18
Filed: 1977-02-10
Granted: 1979-01-09
Abstract: Abstract of the Disclosure A tread reinforcing construction of a pneumatic radial tire for heavy-load vehicles is disclosed.  The tread reinforcing construction comprises a combination of a rubberized belt superimposed about a rubberized carcass ply and at least one additional rubberized reinforcing layer interposed between the belt and a tread rubber.  The additional rubberized reinforcing layer is composed of a reinforcing element embedded therein and formed of a helically formed filament or a bundle of at least two helically formed filaments assembled together without twisting at random.
Patent CA-1058643-A (CA)
Inventor: PALMER DALE A
IPC: F16F9/348
Filed: 1977-02-11
Granted: 1979-07-17
Abstract: SHOCK ABSORBER               ABSTRACT OF THE DISCLOSURE           A shock absorber of the direct acting hydraulic type is disclosed as comprising a reciprocable piston having a piston body, the piston body being formed with first and second sets of spaced flow ports, the sets of flow ports being concentrically oriented with the first set being spaced radially inwardly from the second set; a first valve seat on one end of the piston body adjacent the first set of flow ports; a first valve member engageable with the first valve seat to block fluid flow through the first set of flow ports; first and second sequentially operable springs for resiliently urging the first valve member toward the first valve seat; second and third valve seats on the oppo-site end of the piston body and located radially inwardly and outwardly from the second set of flow ports; a second valve member in the form of a flat annular valve disc dis posed adjacent the second and third valve seats and engage-able therewith to block fluid flow through the second set of flow ports; the ends of the second set of flow ports confronting the second valve member terminating in enlarged size recesses, the area of which is in a predetermined ratio to the cross sectional area of the second set of flow ports.
Patent CA-1064075-A (CA)
Inventor: RATLIFF ROGER D
IPC: B62D33/04
Filed: 1977-03-28
Granted: 1979-10-09
Abstract: TRANSPORT VEHICLE               ABSTRACT OF THE DISCLOSURE     A transport vehicle providing for a light-weight frame structure including a plurality of transversely extending, longitudinally spaced divider members for supporting bulk cargo in individual bays, and with the loads and stresses being dispersed throughout the frame structure.  The frame structure extends into a goose-neck connection for a tractive vehicle.
Patent CA-1084748-A (CA)
Inventor: KETTERER DIETER
IPC: F41A9/65
Filed: 1977-06-22
Granted: 1980-09-02
Abstract: ABSTRACT           The invention relates to a loading arrangement for handfire-arms, in particular automatic rifles for firing caseless ammunition, comprising a magazine and a cartridge clip adapted to it.  The cartridge clip retains the cartridges by two resilient tongues and is constructed as an insert for a container.  Several containers are detachably interconnected.          The magazine comprises channels for the tongues and is provided with a one-way barrier at the front face, which is open over at least approximately the full cross-section.  The one-way barrier permits the insertion of a cartridge clip having a plurality of cartridges into the magazine, tensioned against the follower spring.  The one-way barrier further permits the removal of the clip while retaining the cartridges in the magazine.  The cartridges are removed from the magazine perpendicularly to the direction of insertion.  The one-way barrier is constructed as a U-shaped stop spring.
Patent CA-1073942-A (CA)
Inventor: NASH DAVID D
IPC: F16L23/00
Filed: 1977-07-25
Granted: 1980-03-18
Abstract: TITLE OF THE INVENTION     "Improvements in or relating to pipe couplings"                ABSTRACT OF THE DISCLOSURE      A pipe coupling is disclosed in which two identical tubular parts, to receive pipe ends, each have a flange at one end thereof and are held together, via their flanges, by a clamping ring which has a radially inwardly facing groove which receives the flanges.  Each flange on its side remote from the other flange slopes outwardly from the peri-phery of the tubular part towards said one end thereof pro-viding a ramp surface engaged by the free edge of a respec-tive one of the two side walls of the inwardly facing groove of the clamping ring so that a circumferential tension in the clamping ring produces a wedging action urging the flanges into engagement with each other.  In a variant each of the two tubular parts is angled with respect to its end flange so that by adjusting the tubular parts relative to each other about the common axes of their flanges, the angle bet-ween the axes of the main portions of the tubular parts can be adjusted, thus providing a pipe bend of adjustable angle.
Patent CA-1099395-A (CA)
Inventor: HONGU MASAYUKI
IPC: H04N5/922
Filed: 1977-08-04
Granted: 1981-04-14
Abstract: ABSTRACT OF THE DISCLOSURE     A video signal processing circuit includes an amplifier with a circuit connected to it to emphasize the amplification of some frequencies relative to others.  A non-linear circuit is also connected to the amplifier and comprises a capacitor connected in series with non-linear elements that change the amplification of positive and negative overshoots of the sig-nal relative to the middle amplitude range.  The result is non-linear modification of emphasis and can be used to pre-emphasize video signals before using them to modulate the frequency of a carrier and, in the playback section to de-emphasize the signals to minimize FM noise.  Use of the capacitor prevents direct current from flowing and thus af-fecting the threshold levels of the non-linear elements.          Component values can be selected to effect temperature com-pensation.
Patent CA-1080840-A (CA)
Inventor: FRIELINGHAUS KLAUS H
IPC: B61L1/18
Filed: 1977-09-27
Granted: 1980-07-01
Abstract: JOINTLESS WHICH FREQUENCY TRACK CIRCUIT SYSTEMS FOR RAILROADS            Abstract of the Disclosure A jointless high frequency track circuit system is provided, for communication of signals through track rails of a stretch of railway track, having a high frequency track circuit transmitter and receiver and a cab signal transmitter coupled across track rails at each of several locations marking the ends of track sections along a stretch of railway track.  Each location has an impedance bond having a primary winding connected across the track rails and having toroid secondary windings tuned to assigned distinctive high frequencies for coupling a track transmitter and a track receiver to the track rails.          A loop circuit is also provided at each location, including a tuned loop, for inductively coupling a cab signal code trans-mitter to the track rails independent of the impedance bond.          The tuned toroid coils and the loop circuit are connected in series to one end of a two wire line circuit, which, at its other end, is connected to a track circuit high frequency transmitter, a track circuit receiver, and a cab signal trans-mitter connected in multiple.
Patent CA-1053628-A (CA)
Inventor: BENNETT RICHARD N
IPC: B65B39/12
Filed: 1977-09-29
Granted: 1979-05-01
Abstract: HIGH-SPEED FILLING MACHINE ABSTRACT   A high-speed filling machine for filling a fluid product into small containers, in which a continuously moving conveyor belt brings empty containers to their filling position underneath filling nozzles, where the empty containers are held stationary by an indexing mechanism while the filling nozzles are lowered into the empty containers, the fluid product is discharged into the containers and upon completion of discharge stroke of the filling units, the nozzles are again raised whereafter the indexing mechanism will release the filled containers for further movement by the conveyor belt; the single channel from the inlet end thereby branches out into two parallel channels upstream of the filling station, each provided with its own indexing mechanism, while a nozzle support structure which raises and lowers the filling nozzles into the containers, is also adapted to reciprocate so that alternately the empty containers in one channel and then in the other channel are filled.
Patent CA-1119736-A (CA)
Inventor: GUTH CHRISTIAN
IPC: D06M15/29
Filed: 1977-10-04
Granted: 1982-03-09
Abstract: Abstract of the Disclosure The subject of the invention is a process for coating porous webs, wherein an aqueous, spreadable composition which has a pH value of 3 to 6 and contains at least (A) an emulsion copolymer comprising (a) an alkyl acrylate, (b) acrylonitrile, (c) an ethylenically unsaturated aliphatic carboxylic acid and/or the unsubstituted or methylated N-methylolamide of these carboxylic acids and (d) optionally another copolymer-isable unsaturated compound which is free from acid groups, (B) an organic solvent which is insoluble to at most slightly soluble in water and has boiling point between 50 and 160°C and a molecular weight of 50 to 160, and (C), if desired, a polyfunctional crosslinking aminoplast precondensate or epoxide, is applied to the web, dried and then cured, the web also being impregnated if desired, either before or after coating, but prior to curing, with an agent for imparting hydrophobic and/or oleophobic properties, and dried.  The coatings are stable to drycleaning.
Patent CA-1074999-A (CA)
Inventor: VERSCHUUR EKE
IPC: B65G53/30
Filed: 1977-12-13
Granted: 1980-04-08
Abstract: A B S T R A C T     A method for processing a slurry of coal particles in water, in which the slurry is divided into a coarse fraction comprising at least substantially the coarser coal particles and a fine fraction comprising at least substantially the finer coal particles, in which the water content of the coarse fraction is reduced and in which the fine fraction is worked up to a stable water-containing slurry with a lower water content than the fine fraction itself.
Patent CA-1083713-A (CA)
Inventor: DARJANY JOHN C
IPC: G06K7/08
Filed: 1978-03-22
Granted: 1980-08-12
Abstract: MAGNETIC INFORMATION AND CARD READER SYSTEM AND CARD READER    FOR READING MAGNETIC-TYPE INFORMATION CARDS          Abstract of the Disclosure Disclosed herein is a magnetic information card and card reader system, as well as a card reader for reading information magnetically recorded on a flexible resilient magnetic card.  The system includes a flexible, resilient magnetic information card having a flexible base layer, a flexible over layer of nonmagnetic material and a layer of uniformly distributed magnetic particles of lesser dimensions sealed between the base and over layer such that the magnetic particle layer is spaced from all edges of the card, and a card reader having a magnetic reading head for detecting magnetic signals on the magnetic layer.  The card reader has a structural portion forming a slot accommodating the information card in a tight but not binding fit.  The structural portion supports the reading head in a position such that the gap end of the reading head projects into the slot an appreciable distance.  The structural portion also has a hole forming a relief opposite the reading head to accommodate the localized region of deformation of the card which is formed when the card is forced past the reading head.  Also disclosed is a card reader for reading information magnetically recorded on a flexible resilient magnetic information card.  The reader has a slot adapted to receive the card as it is manually inserted into the slot and a magnetic reading head disposed such that its magnetic gap end extends appreciably into one side of the slot.  A relief hole is disposed on the other side of the slot and at a point opposite the gap end of the reading head, the relief hole having a dimension at least as great as the reading head in the direction of travel of the card.
Patent CA-1090606-A (CA)
Inventor: FRISCHE RICHARD H
IPC: G01L9/00
Filed: 1978-03-29
Granted: 1980-12-02
Abstract: ABSTRACT OF THE DISCLOSURE           A fluid pressure responsive transducer is disclosed of the kind having a thin flat vibrating diaphragm serving as a wall of a continuous pressure chamber for converting a variable fluid pressure magnitude directly into a variable frequency electrical signal.  The thin flat diaphragm, secured only at its periphery to the chamber, becomes progressively stiffer as it is progressively deformed by fluid pressure loading more and more from its flat or unstressed position.  A dual cavity configuration of the pressure chamber is formed by a rigid divider wall with a restricted passage therethrough.  The effects of disturbing acoustic waves which might otherwise be generated interior of the fluid chamber or within pneumatic lines coupled thereto are thus suppressed.
Patent CA-1082558-A (CA)
Inventor: SHAVER J LYLE
IPC: A01F12/00
Filed: 1978-05-30
Granted: 1980-07-29
Abstract: DISTRIBUTION AUGERS FOR AN AXIAL FLOW COMBINE                  ABSTRACT OF THE DISCLOSURE         The threshing cylinder and the surrounding screened cage of an axial flow combine are transversely mounted on the combine and are of a greater axial length than the width of the cleaning section.  Threshed material passing through the openings in the cage screen is distributed to a feeding slot above the cleaning section by distribution augers.  An overfeed auger is positioned over the inlet to the cage so as to convey threshed material passing through the cylinder cage in the area above the feeder mechanism to a point alongside the feeder mechanism where it is discharged onto a wall sloping to a distribution auger.  A pair of distribution augers serve to move threshed material from the bottom of the cage housing which extends laterally beyond the cleaning section laterally inwardly to the feeding slot.  The distribution augers have spiraled flights and paddles so pitched and positioned as to obtain a relatively even transverse distribution of the threshed material to the accelerator rolls and thence to the cleaning shoe assembly disposed below the screened cage and threshing cylinder.
Patent CA-1122484-A (CA)
Inventor: KELSO WILLIAM C JR
IPC: B27K3/52
Filed: 1978-05-31
Granted: 1982-04-27
Abstract: ABSTRACT OF THE DISCLOSURE       Wood is treated by a novel impregnation process wherein water-borne wood preservative treatment materials, such as CCA salts or a sodium chlorophenate, are forced under pressure into the wood and the solution is held within the wood by maintaining the treatment pressure  until the impregnants become affixed to the wood by precipitation or chemical depo-sition.  A significant"kickout" of depleted treatment liquid occurs when the pressure within the pressure vessel is reduced following the impregnation period, to a pressure at least equal to the internal wood pressure prior to treatment, and preferably to a pressure below the initial wood pressure.  The process is preferably carried out at temperatures elevated to 65°C or higher and it is often desirable to heat the treatment liquid, or alternatively to drain the treatment liquid and use steam or a second heated treatment liquid to heat the wood.  In any case, care must be taken to maintain a sufficient pressure within the treatment vessel to prevent premature "kickout" of the treatment liquid before 90% or more of the treatment materials have become deposited within the wood.
Patent CA-1103059-A (CA)
Title: Transaxle
Inventor: HAUSER HANS
IPC: B60K17/08
Filed: 1978-08-03
Granted: 1981-06-16
Abstract: ABSTRACT OF THE DISCLOSURE           A transaxle is provided, especially for small riding vehicles, such as lawn mowers.  The transaxle is exceptionally shallow, with the gear shift lever entering the housing on about the same level as the rear axles.  The transaxle has six forward speeds in a compact housing by virtue of a unique gear train arrangement in which shafts serve multiple functions.  A driven bevel gear in the transaxle housing is also backed-up by a structurally-integral rib or flange in the housing.  A unique bearing design provides effective lubrication for the output shafts or axles of the transaxle.  A compact differential of the transaxle also rotates within a cavity without any axle.
Patent CA-1109955-A (CA)
Title: Method and means for reducing the resonant frequency of a piezoelectric transducer
Inventor: SWEANY LOUIS P
IPC: H04R17/10
Filed: 1978-08-18
Granted: 1981-09-29
Abstract: ABSTRACT OF THE DISCLOSURE        The resonant frequency of a conventional piezoelectric transducer having predetermined dimensions and a fundamental nodal diameter is re-duced while maintaining the overall predetermined diameter and fundamental nodal diameter of the transducer.  A method of reducing the resonant frequency of a conventional piezoelectric transducer includes the step of radially slotting the substrate of the transducer.
Patent CA-1105858-A (CA)
Inventor: HOLIK DENNIS J
IPC: C12N9/34
Filed: 1978-08-25
Granted: 1981-07-28
Abstract: A B S T R A C T         A process for production of dextrose from starch wherein a starch hydrolyzate produced using soluble .alpha.-amylase or a combination of soluble glucoamylase and .alpha.-amylase _s treated with glucoamylase immobilized on a cationic colloidal silica to produce a dextrose-containing syrup.