baber/WOPTO huggingface dataset:
Patent CA-1127870-A (CA)
Title: Temperature compensated titania type  oxygen sensor
Inventor: DATWYLER WALTER F JR
IPC: G01N27/04
Filed: 1980-05-23
Granted: 1982-07-20
Abstract: TEMPERATURE COMPENSATED TITANIA        TYPE OXYGEN SENSOR                          ABSTRACT      A method and apparatus for obtaining an electrical signal which is a function of the 02 content of an exhaust gas of an internal combustion engine.  The sensing element is comprised of two resistors, one of which is a zirconia resistor  (1), the other of which is a titania resistor (2).   Both resistors  (1 and 2) have a resistance which varies as a function of the temperature of the exhaust gas to which it is exposed.  However, the resistance of one of the resistors (2) also varies as a function of the oxygen content in the exhaust gas.  The zirconia resistor (1) is in the feedback loop of an operational amplifier (3) while the titania resistor  (2)  is in the input circuit of the amplifier  (3).  Since the gain of the amplifier (3) will change as  the ratio of the resistances of the titania resistor and zirconia resistor changes, for a given input, the output of the amplifier will be a function of the oxygen content in an exhaust gas and, hence, a function of the  air  to  fuel  ratio  being  supplied  to  an  internal combustion engine.
Patent CA-1144094-A (CA)
Inventor: TAKAGI IZUMI
IPC: F16H55/56
Filed: 1980-06-06
Granted: 1983-04-05
Abstract: CLUTCH FOR BELT DRIVE                    ABSTRACT OF THE DISCLOSURE            This disclosure relates to a clutch for a belt drive.  The clutch includes a first sheave secured to a driven shaft, a second sheave on the shaft adjacent the first sheave but rotatable and axially movable relative to the first sheave and to the shaft.  The two sheaves form an annular outer space for receiving a driving belt, and an annular inner enclosed , space which receives a cam mechanism and a spring.  The cam , mechanism and the spring are connected to the two sheaves and I adjust the width of the annular outer space in response to I various drive conditions.
Patent CA-1137317-A (CA)
Inventor: EDWARDS DONALD W
IPC: C06B31/32
Filed: 1980-06-20
Granted: 1982-12-14
Abstract: ABSTRACT OF THE DISCLOSURE         The invention provides a blasting agent comprising ammonium nitrate, a fuel and a thickener therefor, the fuel comprising a nitroalkane of 1 to 3 carbon atoms and fuel oil and the thicke-ner comprising bentonite.  This composition does not have the tendency for ammonium nitrate and nitroalkane to separate that hitherto caused such mixtures to loose sensitiv-ity and their effectiveness as blasting agents with the passage of time.
Patent CA-1142421-A (CA)
Inventor: ALTEMARK DETLEF
IPC: F23D14/04
Filed: 1980-06-27
Granted: 1983-03-08
Abstract: Abstract A process for the operation of pre-mixing burners with gaseous fuels or vaporized fuels provides for the production in a mixer pipe of a homogene-ous mixture consisting of the fuel, the quantity of combustion air required for the complete combustion of the fuel and additional cooling gas as needed for combustion between 1,100 and 1,700°C.  The mixture flows to a burner head with a widening cross section and a burner plate at the wide end where it is burnt at a central main flame bore, arranged at the burner plate, and several surrounding support flame bores.  The flames then pass through a converging burner mouth and a downstream flame guard to protect the flames against the ingress of air or flue gas from the environment, against cooling and against heating until the completion of combustion.  The burner mouth and the flame guard are coated with a non-catalytic material.  The exhaust gas at the out-let of the flame guard contains very little nitrogen oxides and is therefore highly suited for further utilization such as food-stuff drying.
Patent CA-1154181-A (CA)
Inventor: ALEXIS ROGER P J
IPC: H04J4/00
Filed: 1980-08-21
Granted: 1983-09-20
Abstract: ABSTRACT: In a digital radio transmission system for transmitting a plurality of information signals by a network of trans-mitters having substantially the same carrier frequen-cies in which the information signals to be transmitted are converted into the digital form.  Transmission is done via a frequency-division multiplexer which so transmits the bits of the information signals in parallel that the dura-of the bits transmitted through the channels of the multi-plexer is longer than double the difference in propagation time between two carriers obtained from the two transmitters which are nearest in the receiving zone, where the said carriers have levels which are near to one another.  This solves the problem of fading, three types of transmitters which have three carriers whose deviation is very small compared with the bandwidth of a channel are used in the transmitter network.  This system can be used in radio transmission of HiFi programs and private trans-mission networks to mobile receivers.
Patent CA-1147264-A (CA)
Inventor: HERMANN CLAUS
IPC: C11D1/29
Filed: 1980-09-22
Granted: 1983-05-31
Abstract: - ABSTRACT -A bath additive or shower gel, comprising 20 to 70% by weight of a detergent blend (consisting of 10 to 90% by weight of an amine C8-18 fatty alcohol sulphate (optionally ethoxylated) and a metal or ammonium ethoxylated C8-18 fatty alcohol sulphate) and 20 to 60% by weight of a cosmetically acceptable oil, gives improved oil deposition.
Patent CA-1128410-A (CA)
Inventor: WELTER THOMAS N H
IPC: B60C15/00
Filed: 1980-09-26
Granted: 1982-07-27
Abstract: COMPRRSSION SIDEWALL TIRE                  ABSTRACT OF THE DISCLOSURE           A compression sidewall tire reinforced for operation while deflated.  A pair of junction portions connect the sidewalls and shoulders.  Each of the shoulders extends axially outward and radially inward from the tread, and each of the sidewalls extends axially outward and radially outward from the mounting portions.  The sidewalls are constrained against outward expansion by the rim and junction portions. The shoulders are reinforced with a plurality of circumferentially spaced ribs to resist movement toward the ground when the tire is deflated and under normal load.  A circumferentially continuous rib may also be positioned on the exterior surface of each junction portion to further reinforce the tire.
Patent CA-1150340-A (CA)
Inventor: BJOERKMAN AKE
IPC: H01J61/26
Filed: 1980-11-06
Granted: 1983-07-19
Abstract: Abstract The present invention refers to a cathode unit intended for use in a fluorescent tube and designed in such a way that the service life of the tube is increased markedly as a result of a reduction in the loss of emission mater-ial from the cathode.  These material losses are caused by, inter alia, ion bombardment and by vaporization of the emission material.  In order to achieve a marked increase in the reflection of released atoms and molecules back to the cathode surface, both atoms and molecules which have been released through ion bombardment and atoms and molecules which have been vaporized from the cathode surface, the cathode is surrounded by an electrically conductive cathode shield in the form of a box-shaped casing which is electrically insulated from the cathode.  An opening is made in the bottom of the shield for inserting the cathode.  The open end of the shield is closed by means of a disc, preferably made of mica and provided with a centrally located hole.  The hole diameter of the mica disc should be selected so that it is as small as possible while bearing in mind the fact that the starting voltage for the tube should not exceed a predetermined value.
Patent CA-1176132-A (CA)
Inventor: STEFANIAK PHILIP S
IPC: A45D6/14
Filed: 1980-11-06
Granted: 1984-10-16
Abstract: ABSTRACT A hair roller is provided that comprises a tubular body defining an outer surface for receiving hair to be wound thereon.  The outer surface is free of projections or depressions exceeding 0.010 inches in height or depth.  The outer surface of the tubular body is formed of a resilient, elastomeric, compress-ible, and non-porous material having a Shore duro-meter A hardness of between about 20 and about 65. The outer surface also has a static coefficient of friction greater than about 50, measured at ambient temperature against dry hardwood on the James machine in accordance with ANSI/ASTM F 489-77, whereby hair will readily grip the outer surface to facilitate winding hair about the hair roller.
Patent CA-1157592-A (CA)
Inventor: BARTEL WILLY
IPC: H04Q11/04
Filed: 1980-11-21
Granted: 1983-11-22
Abstract: ABSTRACT     A method of clock rate matching a digitalised analogue signal to a data flow having a pulse frame structure which includes channels (ZKO to ZK31) for the data (Kl to K31)and additional transmission capacity for signals (UR-Sy, Zl to Z17) other than data., the digitalised analogue signal (TnO to Tn31) and data flow having mutually plesiochronous clock rates, said method including the steps of inserting the digital bits of the digitalised analogue signal (TnO to Tn31) into respective bit time slots of a plurality of consecutive channels of each pulse frame, inserting into vacant bit time slots of the additional transmission capacity (ZK16) a clock rate matching signal (++,--) indicating whether the clock rates are effectively synchronous within predetermined limits or have a positive (++,++) or negative (--,--) deviation relative to each other outside said limits, and a reference bit position difference signal (B) indicative of the number of bits in-a pre-determined portion (ZKl) of the channels (ZKl to ZK3) in each pulse frame occupied by the digitalised analogue signal, adjusting, when said deviation is outside said limits, the number of bits (B) in said predetermined channel portion (ZKl) such that said-clock rate matching signa1 (++,--) will again indicate effectively synchronous clock rates, and, where necessary inserting into a vacant portion (R2,ZK16) of said additional transmission capacity, a portion (X) of the digit-alised analogue signal omitted from said predetermined channel portion (ZKl) as a result of said adjustment.
Patent CA-1151003-A (CA)
Inventor: FOXCROFT ARTHUR
IPC: F04B43/12
Filed: 1980-12-23
Granted: 1983-08-02
Abstract: ABSTRACT OF THE DISCLOSURE           A peristaltic pump is disclosed herein in which the pumping chamber has a flexible wall which is stretched to a position closing the chamber during the pumping action.          By reason of the fact that the wall of the chamber is stretched rather than compressed in closing the chamber, the applicant is able to obtain an effective seal with ease and useful life of the conduit which forms the chamber is greatly extended.
Patent CA-1175148-A (CA)
Inventor: CROSBY PHILIP S
IPC: H03M1/04
Filed: 1980-12-29
Granted: 1984-09-25
Abstract: OFFSET DIGITAL DITHER GENERATOR            Abstract A digital dither generator is described which pro-duces a series of discrete analog values which remain constant for each repetition of a signal being digitized.  These analog values are summed with the analog input value being digitized. The dither states exhibit two useful characteristics: a bit-reversal scheme in which a sequence of dither values is used to progressively maximize the resolution of the digitizer and a technique of offsetting the values by a known amount to stat-istically improve digitizer accuracy.
Patent CA-1173761-A (CA)
Inventor: RANTANEN MIKKO J
IPC: B01D33/06
Filed: 1981-05-07
Granted: 1984-09-04
Abstract: ABSTRACT OF THE DISCLOSURE           This invention provides a method for thickening various suspensions or slurries, comprising the steps of passing a sludge or slurry into a basin, rotating a filter unit partly submerged in the sludge or slurry, gathering the thickened sludge or slurry onto the surface of the filter unit from the sludge or the slurry in the basin, passing the sludge or slurry from the basin to above a surface level of the sludge or slurry level, prethickening the sludge or slurry prior to passing the sludge or slurry into a lower portion of the basin by removing a portion of the liquid contained therein through screening means located in an inclined wall of the basin, the inclined wall being located between a feeding-in point of the sludge or slurry and the surface level of the sludge or slurry, and collecting the liquid passing through the screening means in a receiver located below the screening means. An apparatus for carrying out the method is also provided.  The invention overcomes the need to have a separate prethickner requiring a drive mechanism of its own and equipment for passing jet water into same.
Patent CA-1168656-A (CA)
Inventor: DOENGES REINHARD
IPC: C07D413/04
Filed: 1981-06-02
Granted: 1984-06-05
Abstract: ABSTRACT OF THE DISCLOSURE           This invention relates to a novel 2-(halogenomethyl-phenyl)-4-halogeno-oxazole derivative; to a radiation-sensitive composition which, as the radiation-sensitive compound, contains a 2-halogenomethyl-phenyl)-4-halogeno-oxazole derivative; and to a process for the preparation of the novel 2-(halogenomethyl-phenyl)-4-halogeno-oxazole derivatives.  The novel 2-(halogeno-methyl-phenyl)4-halogeno-oxazole derivative has the general formula I                                           I wherein Hal1 is a halogen atom, Hal2 is a chlorine or bromine atom, m    is an integer from 1 to 3, n    is an integer from 1 to 4, R1   is a hydrogen atom or a further CH3-mHal2m group, and R2   is a 1-valent or 2-valent, at most tetranuclear aromatic or heteroaromatic radical which may be partially hydrogenated, and at an unsaturated ring carbon atom, is linked, directly or via a chain which contains up to four exclusively unsaturated carbon atoms, to the oxazolyl part of the molecule according to the general formula I.
Patent CA-1148816-A (CA)
Inventor: PRIKKEL JOHN III
IPC: F23N3/02
Filed: 1981-06-29
Granted: 1983-06-28
Abstract: ABSTRACT OF THE DISCLOSURE      For use in a ventilation flue or the like, a damper positioning mechanism comprising a yieldable means biasing said damper toward a first position, motive means for opposing the bias of said yieldable means to drive said damper to a second position and thermally responsive means modulating the return of said damper from said second position to said first position, said thermally responsive means being strong in relation to said yieldable means.  In one embodiment the thermally responsive means resists closure of said damper until exposed to a sufficiently low temperature.  In another embodi-ment the thermally responsive means resists opening of said damper until exposed to a sufficiently high temperature.
Patent CA-1175983-A (CA)
Inventor: FALK JOHN C
IPC: C08L25/00
Filed: 1981-07-15
Granted: 1984-10-09
Abstract: COMPATIBILIZATION OF POLYSTYRENE AND PVC          Abstract:    Blends of PVC and polystyrene are made compatible by the addition of from 1 to 20 wt%, based on final composition, of a chlorinated styrene-butadiene block copolymer.
Patent CA-1173823-A (CA)
Inventor: HJELMELAND LEONARD M
IPC: C07J41/00
Filed: 1981-07-28
Granted: 1984-09-04
Abstract: ABSTRACT OF THE DISCLOSURE           A nondenaturing zwitterionic detergent for proteins which, for example, consists of an effective amount of 3-[(3-cholamidopropyl)dimethyl-ammonio]-1-propanesulfonate (CHAPS).  This detergent is of extreme interest in the biological study of proteins due to its nondenaturing characteristic. Othe examples of the group may be prepared from different alicyclic compounds, for example, utilizing cholic acid and in others deoxycholic acid and dehy-droabietic acid.  A process for the preparation of these compounds starts with cholic or the equivalent and from this is prepared the triethylammonium salt in tetrahydrofuran (THF).  After the salt is completely dissolved in THF, ethyl chloroformate is added and the flask cooled to 0°C.  Then the mixed anhydride which forms is reacted with dimethylaminopropylamine to form the dimethylaminopropyl derivative of a carboxylic acid amide.  Finally, the tertiary amine group is reacted with propanesultone to give the sulfobetaine product.
Patent CA-1150322-A (CA)
Inventor: SCHRAMM WALTER
IPC: C07C7/11
Filed: 1981-09-11
Granted: 1983-07-19
Abstract: INVENTOR :              WALTER SCHRAMM      INVENTION:              ECONOMIC RECOVERY OF ETHYLENE                         AND/OR PROPYLENE FROM LOW CONCENTRATION FEEDS               ABSTRACT OF THE DISCLOSURE    C2-C3 olefins are recovered from a low concentration gaseous feedstream, e.g. a Fischer-Tropsch waste gas.  In a first process stage, the weight percent concentration of the olefins is enriched to at least about 25%.  One specific enrichment technique includes scrubbing, preferably 2-stage scrubbing, with hydrocarbon scrubbing agents. Another technique comprises condensation of the olefin in regenerators and absorbing same in a purge phase.  The resultant enriched stream,in any case, is then subjected to conventional low temperature separation to recover relatively pure individual streams of ethylene and propylene.
Patent CA-1170310-A (CA)
Inventor: BUCKNAM DONALD C
IPC: F02B1/04
Filed: 1981-10-14
Granted: 1984-07-03
Abstract: ABSTRACT OF THE DISCLOSURE         A power plant and process for converting gas expanding and contracting energy sources into useful forms of energy and utilizing gravitational force, wherein a piston containing a magnet and able to free fall within an enclosed cylinder, having a non-magnetically-responsive center portion surrounded by an induction coil is repeatedly impelled upwards thereby inducing an alternating electric current in the coil. In the preferred embodiment, a mixture of fuel and air is ignited beneath the piston and compressed air is pumped into a reservoir in response to the piston's upwards motion. The reservoir of compressed air is then used to assist in expelling contaminated gases to increase the pressure of the air and gas mixture, and to serve as an addi-tional source of stored energy. Four alternate embodiments are disclosed: the first injects and ignites fuel at both ends of the cylinder and has no compressed air reservoir, the second directs the heat of concentrated solar energy onto a liquid in the bottom of the cylinder to provide an expanding gas beneath the piston, the third burns hydrogen to create heat which vaporizes water to provide pressure for lifting the piston, after which the water vapor condenses, thus tending to leave a vacuum for assisting the piston downwards, and the fourth burns hydrogen at both ends of the cylinder.
Patent CA-1175933-A (CA)
Inventor: RUFF GUNTER
IPC: H04W84/10
Filed: 1981-11-10
Granted: 1984-10-09
Abstract: ABSTRACT A subscriber telephone station in a dial telephone network, com-posed of:  a main subscriber instrument connected by wire into the network, a portable second instrument, and circuitry establishing wireless signal trans-mission and reception communication between the instruments for permitting the second instrumont to be connected into the network for communication with other instruments connected to the network.
Patent CA-1180431-A (CA)
Inventor: BERGMAN JAN
IPC: G01S7/292
Filed: 1981-11-17
Granted: 1985-01-02
Abstract: Abstract:          A threshold circuit comprises a shift memory (1) supplied with sampled and digitised radar video data; two adder circuits (2, 3) connected to the first and the last elements of the shift memory (1); and a selection circuit (5) passing the greater of the two output signals from the adder circuits (2, 3). The output signal of the selection circuit (5) renders a first threshold value for the radar video data from the centre element of the shift memory (1). The threshold circuit further comprises a noise level detector (6) connected to the selection circuit (4), the output signal of which noise level detector (6) rendering a second threshold value for the radar data from the centre element of the shift memory (1). A comparator (10) and a gate circuit (13) are used to obtain the radar video data from the shift memory (1), in so far as the amplitude of said video data is in excess of the greater threshold value.
Patent CA-1167073-A (CA)
Inventor: ESSER HEINZ
IPC: E01C19/47
Filed: 1982-01-08
Granted: 1984-05-08
Abstract: Process for the production of elastic concrete or mortar ABSTRACT      The invention relates to a process for the pro-duction of elastic concrete or mortar by mixing cement or another hydraulic binder, sand and an aqueous rubber or plastics dispersion, characterised in that sand or a hydraulic binder such as cement are passed through a pipe by compressed air and an aqueous rubber or plastics dispersion is introduced into the outlet end of said pipe from a nozzle. In this way an intimate mixing of the dispersion with sand and the hydraulic binder can be achieved.     Le A 20 792
Patent CA-1152855-A (CA)
Inventor: NASSER KARIM W
IPC: F16K31/26
Filed: 1982-02-03
Granted: 1983-08-30
Abstract: FLUID LEVEL CONTROLLER      ABSTRACT OF THE DISCLOSURE          The fluid level controller includes a control valve rod with a flotation element depending therefrom so that as the fluid level rises, the float rises and actuates the con-trol valve in one direction at a predetermined level and when the float descends, the control valve is actuated to the pro-per centre position.   The rod is screw threaded and a connec-tor element for the float engages the rod for sliding move-ment therealong with wing nuts being provided on each side thereof to clamp the connector element in the desired posi-tion along the rod.  The connector element is also vertical-ly slotted and engages over the rod via the slot.  This slot allows vertical adjustment of the float within the limits of the slot and is clamped with the wing nuts in the desired vertical relationship so that adjustment can take place longitudinally and vertically by the same wing nuts
Patent CA-1168174-A (CA)
Inventor: RAPPE GERALD C
IPC: B01D35/06
Filed: 1982-02-24
Granted: 1984-05-29
Abstract: ABSTRACT OF THE DISCLOSURE    Suspended solid particulates are removed from liquefied coal products by first subjecting such products to hydroclone action for removal in the underflow of the larger size particulates, and then subjecting the over-flow from said hydroclone action, comprising the residual finer particulates, to an electrostatic field in an electrofilter wherein such finer particulates are deposited in the bed of beads of dielectric material on said filter.          The heads are periodically cleaned by backwashing to remove the accumulated solids.
Patent CA-1184737-A (CA)
Inventor: LABATE MICHEAL D
IPC: F27D3/14
Filed: 1982-02-24
Granted: 1985-04-02
Abstract: ABSTRACT          A hot metal runner unit comprises a trough-like body member formed of multi-layered mass coalesced by physical force not under thermal influence with each of said multi-layers being of a different density and having a known predetermined lifetime when subjected to molten metal flowing therethrough.
Patent CA-1175146-A (CA)
Inventor: VAN STEENWYK DONALD H
IPC: E21B47/022
Filed: 1982-02-26
Granted: 1984-09-25
Abstract: WELL MAPPING SYSTEM AND METHOD WITH SENSOR OUTPUT COMPENSATION                 ABSTRACT OF THE DISCLOSURE          Bore-hole mapping, or surveying, or tool steering in a bore-hole is accomplished using selected combinations of sensors, with sensor signal compensation being provided, in the hole or at the surface.  Typical sensors include an angular rate sensor or sensors, a linear acceleration sensor or sensors, and an angular acceleration sensor or sensors. The sensor group is typically rotated in the bore-hole, and the sensors may have selected sensitive axis angularity relative to the travel axis in the bore-hole.