baber/WOPTO huggingface dataset:
Patent CA-1091327-A (CA)
Inventor: GREGORY ROBERT O
IPC: G01N27/22
Filed: 1978-11-30
Granted: 1980-12-09
Abstract: APPARATUS FOR DETECTING WET AND ICY SURFACE CONDITIONS      Abstract of the Disclosure Apparatus for detecting wet and icy conditions on the surface of a pathway.  A block of electrically insulative material is embedded in a pathway with the top surface of the block being substantially flush with the surface of the pathway and exposed to atmospheric precipitation.  A sensor electrode is positioned a pre-determined distance beneath the top surface of the block and encapsulated in the block so that the accumulation of atmospheric precipitation on the top surface of the block affects the capacitance and conductance between the sensor electrode and the pathway.  A time-varying electrical current having an amplitude which is substan-tially constant and independent of the accumulation of atmospheric precipitation on the top surface of the block is supplied to the sensor electrode.  The apparatus also includes an amplifier for amplifying an electrical signal applied to a pair of input terminals thereof.   One input terminal of the amplifier is commonly connected to the source of the time-varying electrical current and to the pathway in the vicinity of the sensor electrode.   The sensor electrode is connected to the other input terminal of the amplifier to complete a circuit between the source of the time-varying electrical current, the sensor electrode and the amplifier, thereby applying an electrical signal to the amplifier.  The amplitude of the electrical signal at the input terminals of the amplifier is substantially solely a function of the change in capacitance and conductance between the sensor electrode and the pathway as atmospheric precipitation accumulates on the top surface of the block.  An ampli-fied signal from the amplifier is supplied to a precipi-tation signal circuit which in response to the amplitude of the amplified signal reaching a predetermined magni-tude provides an output signal indicative of the presence of atmospheric precipitation on the pathway.
Patent CA-1112758-A (CA)
Inventor: PEER JOHN C
IPC: G05F1/10
Filed: 1979-01-30
Granted: 1981-11-17
Abstract: An electronic regulator produces a regulated direct voltage less than the raw direct voltage input.  The load on the regulated output is the primary winding of the horizontal output transformer of a television horizontal deflection circuit.  A secondary winding of the output transformer is connected in series with the source of raw direct voltage. An energy storage capacitor is coupled across the secondary winding, and charged therefrom by a gated rectifier.  The regulated output voltage is taken across the raw direct voltage source and capacitor.  An overvoltage protection circuit for protecting against fault conditions is provided. The protection circuit includes a diode coupled between the regulated output voltage terminal and the raw input voltage terminal.  The diode is normally back-biased and becomes conductive when a fault condition makes the regulated voltage exceed the raw input voltage.  A resistor in series with the secondary winding controls circulating currents in the event of an overvoltage fault.
Patent CA-1103798-A (CA)
Title: Method and apparatus for eliminating deadband in digital recursive filters
Inventor: MOORE JAMES K
IPC: H03H17/04
Filed: 1979-02-15
Granted: 1981-06-23
Abstract: ABSTRACT OF THE DISCLOSURE           Method and apparatus for eliminating deadband effects in digital recursive filters caused by rounding of the quantization of products within the filter, wherein the product is represented by a digital word, consists of truncating the absolute value of the product-representing word to the next lower digit by dropping a number of least significant digits determined by the value of the multiplier and if any of the dropped digits is a "one", adding a least significant one to the truncated number while retaining the sign of the pre-truncated word, and repeating the process at the cycling frequency of the filter until a steady state is reached at which the difference between the input and output of the filter becomes zero.  The concept is described as embodied in a digital system utilizing a recursive filter for reducing noise in a color television sig-nal.
Patent CA-1130652-A (CA)
Title: Reversing pump eccentric member
Inventor: PITTMAN LOYAL V
IPC: F04B/
Filed: 1979-02-28
Granted: 1982-08-31
Abstract: 47,634 REVERSING PUMP ECCENTRIC MEMBER     ABSTRACT OF THE DISCLOSURE           A reversing eccentric member for a gerotor pump is shown.  The eccentric member comprises a ring having opposed generally planar surfaces.  One surface defines an arcuate notch for limiting rotation of the member.  The opposite surface defines a slightly-raised radially innermost mar-ginal portion which is knurled to minimize the surface area that supports the member in facing engagement with a sta-tionary plate of the pump and also define channels to pre-vent sticking between lubricated adjacent machined surface.          This limits the frictional engagement between the stationary plate and the eccentric member and the adhesive tendency of the film of lubricant therebetween to the member is gener-ally freely and easily rotated on the plate in response to a change in the direction of rotation of the pump rotor.
Patent CA-1117139-A (CA)
Inventor: CORREIA YVES
IPC: C07C67/00
Filed: 1979-03-21
Granted: 1982-01-26
Abstract: ABSTRACT OF THE DISCLOSURE         A continuous process for the production of monochloroacetyl chloride from trichlorethylene And/or 1,1,1,2-tetrachloroethane, accompanied if desired by monochloroacetic acid production.  The process is character-ised by effecting a reaction for hydration of trichloroethylene and/or 1,1,1,2-tetrachloroethane under pressure of hydrogen chloride in the liquid phase, in the presence of ferric chloride partially in suspension.  The pro-cess is particularly useful for producing monochloroacetyl chloride with a very good degree of selectivity.
Patent CA-1113843-A (CA)
Inventor: HULME JOSEPH M
IPC: G01N1/10
Filed: 1979-03-28
Granted: 1981-12-08
Abstract: Abstract of the Disclosure An apparatus is provided for the preparation of a dilute solution of a sample of a fluid comprising a valve means communicating with a dilution mean, a line to the dilution means to supply diluent thereto from a reservoir, a line in communication with the valve means to remove diluted sample from the dilution means through the valve means, a line in communication with the dilution means having a valve for connection to a supply of compressed gas thereto or for connection to atmospheric pressure flow control means to control flow of diluent from the reservoir to the dilution means, and control means for controlling operation of the valve means, the valve and the flow control means.  The apparatus is useful for obtaining dilute solutions of polymer cements for subsequent composition or property determination.
Patent CA-1155084-A (CA)
Inventor: SUBRAMANIAN KOKUR N
IPC: C22B3/00
Filed: 1979-04-03
Granted: 1983-10-11
Abstract: ABSTRACT OF THE DISCLOSURE       A process for treating anode slimes containing silver in which the silver is converted to a form soluble in dilute nitric acid., and in which after dissolution in dilute nitric acid, the silver is from solution.  The process can be carried out by a route which is entire-ly hydrometallurgical   In addition to silver, other values such as Se, Te, Ni and precious metals can be recovered.
Patent CA-1119579-A (CA)
Inventor: KING JOHN M
IPC: C08F8/32
Filed: 1979-04-03
Granted: 1982-03-09
Abstract: ABSTRACT OF THE DISCLOSURE            DISPERSANT MANNICH BASE COMPOSITIONS         New Mannich bases and their alkaline earth metal salts are prepared by condensing formaldehyde and a polyamine with a sulfur-containing phenolic mixture consisting of (1) from 5 to 40% of a sulfurized alkyl-phenol, and (2) from 95 to 60% of phenol alkylated with polyisobutene of 16 to 128 carbon atoms or a mixture of said phenol alkylated with polyisobutene and phenol alkylated with a propylene tetramer. They are useful as additives for lubricating oils, particularly for use in marine cylinder lubricating oils.
Patent CA-1140817-A (CA)
Inventor: COFFEE RONALD A
IPC: B05B5/00
Filed: 1979-04-17
Granted: 1983-02-08
Abstract: ABSTRACT          Process for spraying liquid by electrostatic atomisation in which the charged particles are at least partially discharged after formation by ionic discharge induced from a sharp earthed electrode; and apparatus for use in the process.
Patent CA-1123080-A (CA)
Inventor: CARBERG WILLIAM G
IPC: F01D17/08
Filed: 1979-08-03
Granted: 1982-05-04
Abstract: ELECTRONIC DRAIN SYSTEM            Abstract of the Disclosure The disclosure relates to automated drain valves for pressurized fluid conduits such as steam conduits. Recognizing that there is a direct relationship between steam temperature and steam pressure at the saturation line; the saturation line is used to derive a variable set point for an automated drain system and method. The saturation temperature is compared with the actual temperature to determine the positioning of the conduit drain valves.
Patent CA-1127451-A (CA)
Inventor: STOLLE JAMES R
IPC: B41F7/08
Filed: 1979-08-08
Granted: 1982-07-13
Abstract: ABSTRACT OF THE DISCLOSURE         A two-color offset printing press having two plate cylin-ders simultaneously engageable with a single blanket cylinder is disclosed.  The plate cylinders and the blanket cylinder are rotatably mounted on a printer head fixed to the mainframe of the press.  A first set of dampening and inking rollers is mounted on the printer head and engageable with one of the plate cylinders. A second set of dampening and inking rollers, engageable with the other plate cylinder, is mounted on a ball bushing supported car-riage linearly movable to and from the printer head along a pair of parallel rails fixed to the mainframe.  Image registry between the two plate cylinders is established by an operator-accessible adjustment mechanism for shifting one of the plate cylinders back and forth along its axis of rotation.  An electrical safety inter-lock system precludes operator access to the carriage-associated plate cylinder during predetermined operating modes of the press.
Patent CA-1124658-A (CA)
Inventor: PALL DAVID B
IPC: F16L37/00
Filed: 1979-10-25
Granted: 1982-06-01
Abstract: Abstract:         An end cap coupler system for linking one end-capped filter cartridge to another at the end cap thereof or to another functional member is provided, comprising, in combination:        (1) first and second attaching members, each having first and second opposed faces, (a) a first face of each attaching member facing one end of a filter cartridge or another functional member; and (b) a second face of each attaching member being adapted for closely-abutting contact with the second face of the other attaching member;         (2) an outer periphery of the second face terminating in an outwardly extending flange, the flange of each member being adapted for closely-abutting contact when the second faces of each member are in closely-abutting contact;        (3) at least two intermeshing clamping channel members having channel sides shaped to embrace the abutting flanges of the attaching members and spaced apart sufficiently to engage the flanges and clamp the attaching members together; each channel member having intermeshing locking means engaging mating locking means of the other member and releasably locking the channel members together in such clamping and embracing position; whereby each of the first and second attaching members when a part of or attached to one end cap of an end-capped filter cartridge releasably links the filter cartridge to an end cap of another end-capped filter cartridge or to another functional member.     Modular end-capped filter cartridges are thus provided having one end cap with the first attaching member and the other end cap with the second attaching member adapted to be linked to corresponding members on another end-capped filter cartridge or to another functional member by the intermeshing clamping channel members when embracing the flanges of the two attaching members.
Patent CA-1128388-A (CA)
Title: Engine starting apparatus for an  extremely cold climate
Inventor: ENDO TAKUYA
IPC: F02M31/07
Filed: 1980-01-15
Granted: 1982-07-27
Abstract: Abstract of the Disclosure An engine starting apparatus for an extremely cold climate has a regenerator which stores heat of exhaust gas during operation of the engine.  The regenerator has sufficient heat capacity to maintain the stored heat for at least 10 hours after stopping the engine.  Suction gas to start the engine can be heated sufficiently to facilitate starting of the engine.  Temperature control device mixes fresh air with air from the regenerator to obtain suitable suction temperature.
Patent CA-1159661-A (CA)
Inventor: LUEBKE ROBERT W
IPC: E01B1/00
Filed: 1980-01-23
Granted: 1984-01-03
Abstract: CONTAINMENT RESERVOIR AND METHOD            Abstract of the Disclosure A containment reservoir for a liquid, such as petroleum oil, comprising, a walled ground containment space or pit, opening upwardly, with the space containing a liquid impervious flexible liner generally following the contour of the space, and with the liner comprising a layer of pervious fabric material having on at least one of its sides a layer of liquid impervious material, such as rubber, the liner being operable to prevent escape of liquid through the liner from the containment space; means are provided coacting with the liner covered containment space for removing li-quid from the reservoir.  A covering layer of pervious fabric ma-terial filter anything, including liquid, passing into the reser-voir.  A method of forming the reservoir from predetermined width strips of liner stock, and a method of retaining and salvaging oil spilled along a railroad track environment is also disclosed.
Patent CA-1141812-A (CA)
Inventor: GRIMM WERNER
IPC: H01J17/44
Filed: 1980-02-29
Granted: 1983-02-22
Abstract: ABSTRACT OF THE DISCLOSURE A glow discharge lamp for qualitative and quantitative spectrum analysis having a discharge chamber closable on the cathode side by an elec-trically conductive disk at cathodic potential in which, to increase the lum-inous intensity and the accuracy of the analysis, a ring magnet of permanent magnet material magnetized in axial direction for producing a magnetic field extending substantially in axial direction in the discharge chamber is pro-vided and a control electrode which is insulated from the anode body is pro-vided.
Patent CA-1151350-A (CA)
Title: Preparation of resilient foams based on a melamine/formaldehyde condensate
Inventor: MAHNKE HARALD
IPC: C08J9/14
Filed: 1980-03-06
Granted: 1983-08-02
Abstract: O.Z. 0050/033,801 Abstract of the Disclosure:   A process for the prepara-tion of a resilient foam based on a melamine-formaldehyde condensate, wherein a very concentrated aqueous solution or dispersion which contains a melamine/formaldehyde pre-condensate, an emulsifier, a volatile blowing agent and a curing agent is foamed under conditions such that init-ially there is only a slight increase in viscosity and the curing process, accompanied by a large increase in viscosity, only commences when foaming has substantially ended.
Patent CA-1130878-A (CA)
Title: Insulation pierce-type connector for  ribbon cable
Inventor: FOX ROY W JR
IPC: H01R11/00
Filed: 1980-05-16
Granted: 1982-08-31
Abstract: ABSTRACT OF THE DISCLOSURE A pierce-type connector for ribbon cable has a base and a mating cover joined together to clamp a multi-conductor flat flexible cable.  The cover and the base have appropriately aligned cavities for accomodating contact elements.  The contact elements are inserted through the top of the cover after the cable is clamped.  The elements have insulation piercing slots so that each element may slice through the conductor insulation to electrically engage a conductor wire and are shaped so as to hold the base and cover in engagement after contact is achieved with the conductor wires.  This construction facilitates manu-facture and circuit continuity checks.
Patent CA-1171953-A (CA)
Inventor: OBATA SUKIRO
IPC: G01V1/18
Filed: 1980-07-10
Granted: 1984-07-31
Abstract: ABSTRACT     A vibration detector for a seismic system having a weight member, a support frame, at least two weight supporting members, each being fixed to the weight member at one end thereof and being substantially fixed to the support frame at one portion thereof, and a member for substantially fixing one portion to the support frame. The weight member is vibratively supported by the tension of the supporting members.  At least a part of one of the supporting members is formed by a piezoelectric polymeric substance having a pair of vibration detecting electrodes, the part being at a position between the fixed end and one substantial-ly fixed portion of the supporting member.  Suitable piezoelectric polymeric substances include polyvinylidene fluoride type substances, for example of vinylidene fluoride homopolymer, a copolymer of vinylidene fluoride and at least one comonomer copoly-merizable therewith, for example a halogenoalkene such as vinyl fluoride, tetrafluoroethylene or chlorotrifluoroethylene, the copolymer containing more than 50 mol% of vinylidene fluoride units in the main polymer chain, or a composition consisting predominantly of such a homopolymer and/or copolymer and also containing a compatible resin, for example poly (methyl methacrylate) or poly (methyl acrylate).  Other materials may also be included in the composition.
Patent CA-1133433-A (CA)
Inventor: HOLRITZ ROBERT F
IPC: B66B21/02
Filed: 1980-08-07
Granted: 1982-10-12
Abstract: 12                         48,029 ABSTRACT OF THE DISCLOSURE Installation  apparatus  for  installing  pre-assembled escalators having upper and lower ends in an operating  position  between  upper  and  lower  landings, including wheeled  support  apparatus  for  supporting  and transporting an escalator.  Scissors lift apparatus mount-ed on the wheeled support apparatus, and a pivotal escala-tor  truss  support  and  locater  assembly mounted on the scissors lip apparatus, cooperate to provide both vertical and  angular  adjustment  of  the  escalator,  in order  to permit the upper end to be aligned with and then supported by a support wall associated with the upper landing, and to permit its lower end to be subsequently lowered into a pit associated with the floor of the lower landing.
Patent CA-1145295-A (CA)
Inventor: WIELONSKI ROY F
IPC: B44F1/08
Filed: 1980-09-02
Granted: 1983-04-26
Abstract: PREPARATION OF COLORED POLYMERIC FILM-LIKE COATING          ABSTRACT      The invention provides a method of coating a surface 21 of a substrate 20, or of an article, of a material, such as glass, metal, ceramic, cloth or the like, with a colored film-like polymeric coating 22 consisting essentially of a plasma formed polymer matrix 23 con-taining therein particulates 24 with the method com-prising introducing plasma-polymerizable material through at least one conduit 30 into the interior region 14 of an appropriate apparatus 10, 35, or 39 in which region 14 there is maintained an electrical discharge conducive to plasma polymerize the introduced material and deposit it on surface 21 concurrently with a depositing therewith of the particulates 24, or color centers, of a size and in a distribution adapted through selective scattering and adsorption of light to provide a desired color while the substrate 20 contacts, or is, a cathode element 19 main-tained at an electrical potential. conducive for the depositing and while preferably the particulates are opaque and colloidal and provided by thermal evaporation employing a filament resistance heater 29, inductively heated evaporation source means 36, or an electron beam evaporator means 40.
Patent CA-1181785-A (CA)
Inventor: HERROUIN GUY
IPC: B60V1/16
Filed: 1980-09-17
Granted: 1985-01-29
Abstract: ABSTRACT An air cushion vehicle comprises a structure to be lifted, a central lifting cushion, and a peripheral lifting arrangement constituted by a plurality of cells defined externally by an outer multi-lobed skirt.     Each lobe of the outer skirt is constituted by an assembly of an upper part defined by a surface of revolution which diverges downwards with respect to the structure, and of a lower part defined by a surface of revolution which converges downwards with respect to the structure, so that the lobe projects outside the structure.     The lifting surface of the cells and thus of the entire cushion is increased and they project externally of the structure thus protecting the structure against impact.
Patent CA-1151301-A (CA)
Inventor: NALLY ROBERT B
IPC: G06V10/10
Filed: 1980-09-25
Granted: 1983-08-02
Abstract: MAGNETIC INK CHARACTER RECOGNITION APPARATUS            Abstract of the Disclosure A method and apparatus for processing data used in a character recognition system in which a thres-hold voltage value is developed to be applied to an analog waveform representing an unknown character to determine the start of the character waveform.  Samples of the first peak of the waveform are generated and a value representing the area under the first peak is developed.  Data processing means divides the area by the number of samples taken to arrive at a threshold voltage value which, when applied to the samples taken, determines the start of the character waveform.  The voltage amplitudes of adjacent samples of the character waveform are then averaged and the number of samples reduced by one half.  A predetermined number of samples having the maximum voltage amplitudes located within peak areas of the waveform are normalized for use by a utilization device in recognizing the unknown character.
Patent CA-1154786-A (CA)
Inventor: KNOLLMUELLER KARL O
IPC: C07F7/02
Filed: 1980-10-02
Granted: 1983-10-04
Abstract: Abstract of the Disclosure Described is a process for exchanging some or all of the radicals R' in alkoxysilane cluster compounds with different radicals R"; this process being based on the following reaction:                   RSi[SiO4]3[R']9-n[R"]n + nR'OH wherein R is hydrogen, an alkyl, an alkenyl, and an aryl, or an aralkyl; and each R' is independently selected from the same groups as R with the proviso that at least a majority of said R' radicals are sterically hindered alkyl groups having at least 3 carbon atoms; and each R" is selected from groups eonsisting of alkyl groups, alkenyl groups, aryl groups, aralkyl groups, functionally substituted alkyl, alkenyl, aryl and aralkyl groups, and polyoxyalkylene groups with the proviso that R" radicals are different than R' radicals; and n is a number from 1 to 9.  Also described are novel alkoxysilane cluster com-pounds made by this process; these compounds being represented by the following chemcial formula:                    wherein R, R' ana R" are as defined above, and x, y, and z are individually selected from 0, 1, 2, or 3 with the proviso that the sum of x + y + z is from 1 to 8.  Also, deseribed are functional fluid systems (i.e., hydraulic fluid and heat transfer fluid systems) containing these novel alkoxysilane cluster compounds of the above formula.
Patent CA-1175383-A (CA)
Inventor: FRANCZYK JOHN A
IPC: G01D15/08
Filed: 1980-10-20
Granted: 1984-10-02
Abstract: TINTED METALLIZED RECORDING MEDIUM     Abstract of the Disclosure Method of coloring the erodible metal surface of a metallized record medium such as used in electroerosion printers by overprinting discrete limited areas of the surface with one or more inks of preselected colors to provide a distinctive halftone tint to the surface without adversely affecting the recording quality of the medium during subsequent selective erosion of the metal coating.