baber/WOPTO huggingface dataset:
Patent CA-1205589-A (CA)
Inventor: OKAMOTO YOSHIHISA
IPC: C08G65/22
Filed: 1983-09-02
Granted: 1986-06-03
Abstract: POLY(GLYCIDYL ETHER) BLOCK COPOLYMERS               AND PROCESS FOR THEIR PREPARATION                     ABSTRACT OF THE DISCLOSURE Under particular conditions, a cationic ring-opening polymerization of a first oxirane monomer selected from the group consisting of an acyclic glycidyl ether, a cyclic glycidyl ether, and a haloalkyl epoxide, in the presence of a hydroxyl-containing organic material ("HCM"), for example a polymer (referred to herein as a 'hydroxyl-prepolymer'), and a particular catalyst, produces a polymerization having 'living polymerization' character-istics. The result is that molecular weight (mol wt) of the resulting polymer is directly proportional to the conversion of the monomer to said resulting polymer. This HCM serves as Q chain propagator which initially furnishes OH groups as propagation sites. Subsequently, a second oxirane monomer, different from said first, is sequentially polymerized to yield a block copolymer. Branched block copolymers, or linear block copolymers of a HCM and (a) one or more glycidyl ethers, or (b) a haloalkyl epoxide and at least oneglycidyl ether, may be prepared. Halogen containing segments of the block copolymers of the invention may be aminated to produce amphophilic polymers.
Patent CA-1197111-A (CA)
Inventor: HERZL PETER J
IPC: G01F1/32
Filed: 1983-09-16
Granted: 1985-11-26
Abstract: DUAL-BODY VORTEX-SHEDDING FLOWMETER         Inventors:  Peter J. Herzl and Warren O.             Strohmeier, citizens of the United States of America and residents, respectively, of Morrisville, Pa. and Warminster, Pa.     ABSTRACT          A vortex-shedding flowmeter for accurately measuring the flow rate of gases and liquid conducted through a flow tube provided with a dual-body shedder having a front section fixedly mounted across the tube, behind which is a pivotally mounted rear section separated from the front section by a gap configured to produce a fluidic feedback path so that a strong hydraulic interaction takes place between the sections and both actively contribute to the formation of periodic vortices which are alternately shed on either side of the shedder.  The rear section is mounted on a pivot shaft extending along an axis normal to the flow axis of the tube, whereby the vortices which appear on either side of the rear section induce the ear section to oscillate.  These oscillations are sensed to produce a signal representing the flow rate.
Patent CA-1223091-A (CA)
Inventor: PUUMALAINEN PERTTI
IPC: H01J35/14
Filed: 1983-09-21
Granted: 1987-06-16
Abstract: ABSTRACT OF DISCLOSURE           A method and a device for operating and focusing  a tomo-graphic x-ray unit using an electron beam and embodying at least one electron gun, an anode at which the gun is aimed as well as the x-ray detectors needed to produce a tomographic   images   of fast-moving objects.   It is par-ticularly characteristic of this invention that an electron beam emitted by an electron gun is roughly deflected at a hole in the focusing plate which, by means of focusing field lines, draws the electrons into the hole, focuses and accelerates the electron beam which strikes the surface of the anode, generating an x-ray source, and that the focusing hole is moved in regard to the anode to generate a series of x-ray sources needed to produce a "layerwise" tomographic image     of the object under examination.
Patent CA-1246842-A (CA)
Inventor: REEVE MICHAEL H
IPC: G02B6/44
Filed: 1983-11-07
Granted: 1988-12-20
Abstract: ABSTRACT            OPTICAL FIBRE TRANSMISSION LINES        An optical fibre transmission line is installed by first installing a conduit having one or more bores and subsequently inserting flexible, lightweight optical fibre members containing the optical fibres into the bores.       The optical fibre members are propelled by employing the fluid dray of air, or another suitable gas, passed at high velocity through the bores.
Patent CA-1218213-A (CA)
Inventor: BARROW ROBERT H
IPC: E04B1/19
Filed: 1983-12-08
Granted: 1987-02-24
Abstract: MODULAR CONSTRUCTION  ABSTRACT           A structure comprising a plurality of connectors, a plurality of elongated strut members extending between said connectors and affixed thereto by threaded fasteners extending longitudinally outwardly from said struts and threadably engaging the connectors.
Patent CA-1215869-A (CA)
Inventor: STRONG ALEXANDER R
IPC: G10H7/08
Filed: 1984-01-31
Granted: 1986-12-30
Abstract: ABSTRACT          A musical instrument employing a wavetable-modification method of producing musical sound.  A wavetable which is periodically accessed to provide an output signal which determines the musical sound.  The output signal from the wavetable  is modified  and  stored back  into  the wavetable as modified data.  The modified data, after a delay,  is  accessed  from  the  wavetable  and  thereby becomes  a  new  output  signal.    This  process  is periodically repeated whereby each new output signal is modified and stored back into the wavetable to produce rich and natural musical sound.
Patent CA-1214977-A (CA)
Inventor: KVARNAENG ROGER
IPC: B27G1/00
Filed: 1984-02-14
Granted: 1986-12-09
Abstract: Abstract               11 A machine for removing root swellings on tree logs comprises a holding device (2) for supporting the log generally from below with an end portion (4) thereof protruding freely from the holding device. Furthermore, the holding device is adapted to cause the log to rotate.          A rotatable milling unit (5) has peripherically or externally located processing elements and is located for processing the protruding end portion of the log from below.The holding device has bearing members (6, 6a) operable for moving the log between an upper position and a lower position. The bearing members are located in such a way relative to the milling unit that a log resting on the bearing members on lowering thereof will enter into contact with the milling unit, which is stationarily mounted to a frame of the machine.    (Fig 1).
Patent CA-1236939-A (CA)
Inventor: TICHENOR GEORGE J
IPC: C02F1/56
Filed: 1984-02-27
Granted: 1988-05-17
Abstract: ABSTRACT OF THE DISCLOSURE         A method for dewatering alum sludges obtained from waste water treatment processes which comprises treating said sludges prior to or during their formation with a water-soluble anionic polymer of acrylamide and/or acrylic acid with 2-acrylamido methyl propane sulfonic acid (AMPS), said polymer having a molecular weight of at least 5 million.
Patent CA-1244269-A (CA)
Inventor: FRANCIS ALBERT C
IPC: F16B19/00
Filed: 1984-02-29
Granted: 1988-11-08
Abstract: ABSTRACT           Known blind, self-plugging rivet assemblies comprise a tubular shell with an enlarged head at one end, and a stem which extends through the bore of the shell, where the stem has an enlarged head beyond the tail end of the shell.  In this invention, the shell has a weakened zone formed by three slits extending along part of the shell shank and spaced apart equiangularly around it. A stem head lies beyond the shell tail end, and has an underhead surface which is slightly convex and is bounded by a sharp end.  This arrangement facilitates axial compression of the rivet assembly and subsequent outward bending of the portions of the shell between the slits to conveniently secure together two members.  The stem has a pulling portion connected by a breakneck to a plugging portion which is an interference fit in the shell bore.  Adjacent the breakneck the plugging portion has a cylindrical skirt which, when the rivet has been installed, and the pulling portion detached at the break-neck can be deformed outwardly to lock the plugging portion to the shell.  A simple, yet effective, means of locking the plugging portion to the shell is thus provided.
Patent CA-1205641-A (CA)
Inventor: ROSENBLATT JOEL H
IPC: F01K25/10
Filed: 1984-03-02
Granted: 1986-06-10
Abstract: LOW TEMPERATURE ENGINE SYSTEM Abstract of the Disclosure An improved engine system is provided which includes a synthetic low temperature sink that is developed in conjunction with an absorbtion-refrigeration subsystem having inputs from an external low-grade heat energy supply and from an external source of cooling fluid. A low temperature engine is included which has a high temperature end that is in heat exchange communication with the external heat energy source and a low temperature end in heat exchange communi-cation with the synthetic sink provided by the absorbtion-refrigeration subsystem. By this invention, it is possible to vary the sink temperature as desired, including temperatures that are lower than ambient temperatures such as that of the external cooling source. This feature enables the use of an external heat input source that is of a very low grade because an advantageously low heat sink temperature can be selected.
Patent CA-1219987-A (CA)
Title: Process for the preparation of cellular and non-  cellular polyurethanes
Inventor: STRAEHLE WOLFGANG
IPC: C08G18/48
Filed: 1984-04-17
Granted: 1987-03-31
Abstract: PROCESS FOR THE PREPARATION OF            CELLULAR OR NON-CELLULAR POLYURETHANES                    Abstract of the Disclosure The invention relates to a process for the preparation of cellular or non-cellular polyurethanes through the reaction of organic polyisocyanates with a polyether-polyester polyol component containing di- to tetrafunctional polyether-polyester polyols having hydroxyl numbers of from 10 to 200, which are themselves prepared by esterifying conventional di- to tetrafunctional polyether polyols with carboxylic acid anhydrides, preferably aromatic carboxylic acid anhydrides, in the presence of selected catalysts to form carboxylic acid half esters, and oxy-alkylating the resulting carboxylic acid half esters with alkylene oxides in the presence of N-methylimidazole, triethylene diamine, triphenylphosphine or mixtures thereof with thiodlalkylene glycol as catalysts.
Patent CA-1204829-A (CA)
Inventor: TARALP GUNER
IPC: H04B3/14
Filed: 1984-04-17
Granted: 1986-05-20
Abstract: DELAY EQUALIZERS     Abstract of the Disclosure A delay equalizer includes an amplifier with differential inputs, to which an input of the equalizer is coupled via first and third impedance circuits, and which are coupled to circuit ground via second and fourth impedance circuits, respectively.  One of the first and second impedance circuits is constituted by a resistor, the other by a frequency-dependent network consisting of one or more tuned network sections.  The third and fourth impedance circuits can similarly be a frequency-dependent network and a resistor or, desirably, two resistors. The amplifier can be a bipolar transistor whose base and emitter form the differential inputs.  The equalizer can also include input and output impedance-matching amplifier stages, which may also provide amplitude equalization.     - i -
Patent CA-1261592-A (CA)
Inventor: COECKELBERGHS PAUL
IPC: C01B13/02
Filed: 1984-06-08
Granted: 1989-09-26
Abstract: A continuous process for the production of a gaseous product (12), and as a liquid byproduct (16), at the same time by reacting a liquid reagent in a reactor (4) is disclosed. The positive difference between the pressure at the entrance to and an pressure at the outlet of the reactor (4) is kept constant. The process can be used to generate oxygen by decomposition of hydrogen peroxide and this oxygen can be used in welding and cutting sets.
Patent CA-1218976-A (CA)
Inventor: HARVEY PHILLIP R
IPC: B02C17/14
Filed: 1984-06-27
Granted: 1987-03-10
Abstract: A B S T R A C T    A pulverising mill comprising a fixed base frame, a vibrating frame, support coil springs interconnecting the base frame and the vibrating frame for resiliently supporting the latter, aligned bearings carried in the vibrating frame and journalling respective upper and intermediate portions of a driven shaft which depends centrally through the vibrating frame, an eccentric weight carried by the shaft for providing the motive force to cause vibratory movement, a container or bowl having a replaceable wear base plate, being removably secured to the vibrating frame and containing pulverising metal masses, and an hydraulic motor attached to the lower end of the vibrating frame and having its drive shaft coupled by flexible coupling means to the lower end of said driven shaft.
Patent CA-1245683-A (CA)
Inventor: KRONOGARD HAKAN
IPC: A63B69/36
Filed: 1984-07-11
Granted: 1988-11-29
Abstract: A B S T R A C T   Swing starter comprising a straight target rod and a curved rod interconnected by a web.  The curved rod has a radius of curvature of about 1,55 m and a length of about 0,6 m.  The front portion comprises a convex mirror having an indicator line parallel with the target line.  The swing starter is placed on the ground having a pin thereof extending down into the ground.  The pin allows the swing starter to be pivoted under friction about an axis parallel to the target line.  The golfer places himself beside the swing starter opposite the front end thereof.  The swing starter is pivoted until the convex mirror positioned at the front end of the curved rod indicates that the correct swing plane has been achieved by viewing the shoulder portion of the golfer at the line on the mirror.
Patent CA-1221856-A (CA)
Inventor: MEIXNER EDWIN J
IPC: G01P3/49
Filed: 1984-07-13
Granted: 1987-05-19
Abstract: TRANSDUCER FOR MEASURING TORQUE AND/OR        SPEED OF ROTATING SHAFT        ABSTRACT:      A magnetic transducer (10) fits over and encompas-ses a rotatable shaft (11) and has a primary or excit-ation magnetic assembly (14) having a winding arrange-ment (25)  that is energized to provide a-c excitation for producing  an alternating magnetic flux or field, adjacent to and within the shaft, which is modified as the shaft is torsionally stressed when torque is applied thereto.  This stressing causes compression and tension in the shaft which alter the shaft permeability and thus vary the magnetic flux pattern in the shaft. The resulting or modified magnetic field is also a function of the shaft speed due to the shaft's armature reacion,  eddy currents being generated  in the shaft which develop a counter magnetic field that opposes and distorts the field produced by the primary winding arrangement.   A pair of secondary or pick-up magnetic assemblies (15,16), having secondary windings (31), respond to the modified magnetic field and provide information signals relative to the torque and speed characteristics of the rotating  shaft.   The size, weight,  cost and  complexity of the transducer are substantially reduced by constructing the three magnetic assemblies so that the primary and secondary windings are effectively wrapped around the shaft with the winding turns and the shaft sharing the same axis, the magnetic field thereby being parallel to the shaft. Relatively short poles (21d,21e,22d,22e) extend radially inwardly from the magnetic assemblies toward the shaft to control the magnetic flux paths and maximize the amount of flux passing through the shaft.
Patent CA-1213514-A (CA)
Inventor: CARTER ERNEST E JR
IPC: E21B49/08
Filed: 1984-08-28
Granted: 1986-11-04
Abstract: ABSTRACT         An annulus pressure responsive sampler valve comprising a power section and a sampler sec-tion having an annular sample chamber therein; the sampler valve having a full bore therethrough.
Patent CA-1266494-A (CA)
Inventor: GEHLBACH ROGER D
IPC: A63B9/00
Filed: 1984-09-10
Granted: 1990-03-06
Abstract: ABSTRACT OF THE DISCLOSURE         A play device having a pair of longitudinal members.  Cross members join the longitudinal members to form a ladder-like structure.  A first member is attached to one longitudinal member by different length limbs and includes a support section joining the limbs. A second member is attached to the other longitudinal member by different length limbs and also includes a support sec-tion joining the limbs.  The first support member has its longer limb at that end of the play device where the second member has its shorter limb.  There are locating means for the play device.
Patent CA-1228636-A (CA)
Inventor: DE SCHAMPHELAERE LUCIEN A
IPC: G03G15/00
Filed: 1984-10-29
Granted: 1987-10-27
Abstract: Abstract Toner dispensing control Toner dispensing control in a xerographic printer wherein a toner dispenser is controlled in response to a set magnetic density value that is variable during the running-in period of a fresh toner mixture, there-by to take account of the changing packing density of the mixture during said period.            (Fig. 1)
Patent CA-1231238-A (CA)
Inventor: WALLNER FELIX
IPC: C10J3/02
Filed: 1984-11-08
Granted: 1988-01-12
Abstract: ABSTRACT OF THE DISCLOSURE:       There is disclosed a method for working up heavy-metal-containing residues from the chemical industry. For an economical and at the same time ecologically beneficial working up of the heavy-metal-containing residues, the heavy-metal-containing residues are introduced into a primary-gas reaction zone of a shaft gasifier containing at least one solid bed of carbon-containing material. Slag-forming substances are introduced together with the charge substances and/or together with the solid-bed formers to absorb and set the heavy metals. The lower zone of the solid bed is maintained at a temperature above the slag and ash melting temperatures. The viscosity of the slag is less than 100 poise.
Patent CA-1249579-A (CA)
Inventor: JOHNSTON JOHN E
IPC: C10M143/00
Filed: 1984-12-07
Granted: 1989-01-31
Abstract: ABSTRACT OF THE DISCLOSURE          Ethylene-alpha-olerin copolymers are disclosed being particularly useful as improving the low temperature viscosity and pumpability properties of lubricating oil comprised of a major and minor component each or which have a defined ethylene sequence distribution with respect to the number of ethylenes in sequences of three or more and the percent or ethylene sequences of three or more ethylene units.   Ethylene-propylene copolymers are the preferred embodiment.
Patent CA-1270791-A (CA)
Inventor: MOHR DIETER
IPC: B41N3/00
Filed: 1985-01-04
Granted: 1990-06-26
Abstract: ABSTRACT OF THE DISCLOSURE         The invention relates to a process for the electrochemical roughening of a plate of aluminum or alloy thereof which is useful for a printing plate support, comprising the steps of (A) immersing the plate in an aqueous mixed electrolyte solution containing (i) from about 0.3 to 4% by weight of HNO3 and (ii) at least one further inorganic electrolyte comprising an inorganic fluorine compound which is present in the form of an acid or an alkali metal salt and which contains an anion comprised of fluorine and at least one further element, such that said mixed electrolyte solution contains from about 0.05 to 5% by weight of said fluorine compound; and (B) applying an alternating current to the plate to produce a uniformly roughened offset printing plate support.  The very uniformly roughened support materials are used in the production of offset printing plates.
Patent CA-1247667-A (CA)
Inventor: PATTERSON WAYNE
IPC: E05F1/08
Filed: 1985-02-19
Granted: 1988-12-28
Abstract: ABSTRACT OF THE DISCLOSURE           A closure mechanism for a sliding screen door comprising a housing adapted to be fitted to the doorframe or the sliding screen door.  A line, wound on a biassed wheel inside the housing, extends out of the housing and can be attached to the other part of the doorframe or sliding screen door.  The line is biassed into the housing so that, when secured, it urges the screen door into the closed position.
Patent CA-1259950-A (CA)
Title: Coated valve metal anode for electrolytic extraction  of metals or metal oxides
Inventor: KOZIOL KONRAD
IPC: C25C7/02
Filed: 1985-02-19
Granted: 1989-09-26
Abstract: Abstract of the Disclosure An electrode comprises a horizontally arranged current feed which is formed by a rail of copper or has such a rail as a current conductive component.  From this rail at least one current distributor branches, which is con-structed of a sleeve of valve metal and a core arranged therein, and of a metal which is a good electrical con-ductor which is in electrical connection with the sleeve and in which preferably a contact structure is embedded which consists of valve metal and is connected to the inner surface of the sleeve by a plurality of weld posi-tions.   To the sleeve of the current distributor an active part of the electrode is mechanically and elec-trically conductively connected.            The essential feature of this electrode comprises in the core of the current distributor a bar of material which is a good electrical conductor, preferably copper, and is  connected  in  a  mechanically  and  electrically conductive manner to the rail of the current feed.
Patent CA-1260324-A (CA)
Inventor: SALAMA MAMDOUH M
IPC: B63B59/00
Filed: 1985-05-01
Granted: 1989-09-26
Abstract: CORROSION PROTECTION FOR MOORING AND RISER     ELEMENTS OF A TENSION LEG PLATFORM            Abstract of the Disclosure A flame sprayed aluminum coating of high strength steel components offers excellent seawater corrosion protection, increased fatigue life and uniform low level cathodic protection that avoids hydrogen embrittlement.  Marine mooring and riser elements fabricated from such components are superior in the above respects to steel components protected from corrosion by common sacrificial anode cathodic protection systems.  In addition, the need of welding a stud to the steel to insure electrical continuity between the steel and the sacrificial anodes is eliminated.
Patent CA-1261256-A (CA)
Inventor: SHANKS IAN A
IPC: G01N27/07
Filed: 1985-06-12
Granted: 1989-09-26
Abstract: ABSTRACT    A specifically-reactive sample-collecting and testing device possessing a cavity or cavities each having a dimension small enough to enable sample liquid to be drawn into the cavity by capillary action, wherein a surface of the cavity carries an immobilised reagent appropriate to the test to be carried out in the device, and wherein said surface is a surface of a transparent solid plate to act as a light-transmissive waveguide and forming a wall of the cavity, said plate having an edge which is substantially optically smooth and transverse to the plane of the plate.
Patent CA-1248813-A (CA)
Inventor: BECKMAN JOHN H
IPC: A22C11/02
Filed: 1985-06-18
Granted: 1989-01-17
Abstract: COMPOSITE SHIRRED CASING ARTICLE WITH CORED HIGH DENSITY SHIRRED CASING AND METHOD OF USING SAME       Abstract This invention relates to a composite shirred casing article comprised of at least two shirred casing lengths, at least one of said lengths being a cored high density shirred casing length.
Patent CA-1238995-A (CA)
Inventor: WALTON JOHN R
IPC: C02F1/72
Filed: 1985-06-24
Granted: 1988-07-05
Abstract: ABSTRACT Wastewater Treatment Aqueous alkaline sulfidic waste effluents are often subjected to air oxidation processes that for economic sizing oxidise the sulfides only to thiosulfates. Thiosulfates are still immediate oxygen demanders and thus their concentration in the effluent must normally be reduced to below a threshold level before the effluent can be discharged.  The effectiveness of hydrogen peroxide for this purpose can be significantly improved both as to rate of reaction and extent of removal by employing a copper catalyst in solution.