baber/WOPTO huggingface dataset:
Patent CA-1093335-A (CA)
Inventor: ZIELINSKI ZENON A
IPC: E04F11/02
Filed: 1978-07-31
Granted: 1981-01-13
Abstract: TITLE            A PRECAST CONCRETE STAIRWAY MODULE                         INVENTORS                     Zenon A. Zielinski Czeslawa Zielinski ABSTRACT OF THE DISCLOSURE         A precast concrete stairway module comprising a concrete wall assembly which is C-shaped in plan view, providing a side wall and two end walls, and a concrete stair flight extending from an edge of one side wall to a mid-height position of the other side wall.  The stair flight assembly is moulded integrally with the wall as-sembly comprises a landing at each end and a flight of stairs therebetween.  The access opening is provided in the wall assembly.
Patent CA-1118563-A (CA)
Title: Atomization into a chamber held at reduced  pressure
Inventor: SIDDALL RICHARD J
IPC: B22F9/08
Filed: 1978-08-09
Granted: 1982-02-23
Abstract: Abstract of the Invention Gas content of atomized metal powder produced by gas atomiza-tion is maintained at low levels by conducting the atomization process within a chamber which is maintained at subatmospheric pressure during the atomization process.
Patent CA-1119210-A (CA)
Inventor: DYKEHOUSE ROBERT H
IPC: A63D9/00
Filed: 1978-08-09
Granted: 1982-03-02
Abstract: ABSTRACT OF THE DISCLOSURE           A bowling pin is prepared by injection molding, a high impact polypropylene belly and, thereafter, in-serting into the belly a wood laminate core.  The poly-propylene is utilized in the presence of a coupling agent and a blowing agent and is admixed with a filler.  The products produced in accordance herewith are suitable replacements for existing wood bowling pins.
Patent CA-1150250-A (CA)
Inventor: WHITTAKER NORMAN
IPC: C07D233/76
Filed: 1978-09-05
Granted: 1983-07-19
Abstract: ABSTRACT       New substituted hydantoins having pharmacological properties related to those of prostaglandins and are useful in medicine, for example in the treatment of thrombosis.
Patent CA-1126883-A (CA)
Inventor: VACHON PATRICK A
IPC: H04B3/20
Filed: 1979-01-02
Granted: 1982-06-29
Abstract: Abstract of the Disclosure Disclosed is an echo suppressor circuit which provides a variable loss in a speaker's transmit path, which loss is  a function of the relative speaker volumes. The loss provide in the path of a particular speaker is relative to the volume of the speech emanating from each speaker.  In one embodiment, the amplitude of the incoming signal is reduced by an amount which is a function of the ratio of the amplitude of the incoming signal to the amplitude of the outgoing signal.  Because loss is introduced into a distant speaker's transmit path rather than into his return path, it is possible for a near speaker to break into a conversation before the distant speaker has concluded. Further, since the loss provided is a function of the relative volumes of both speakers with respect to one another, the total loss introduced into the system is minimized.
Patent CA-1116778-A (CA)
Inventor: ROPER ROBERT
IPC: C08L1/00
Filed: 1979-03-13
Granted: 1982-01-19
Abstract: U.S. 892,645 ABSTRACT OF THE DISCLOSURE          A stabilized halogenated butyl rubber composition comprises halogenated butyl rubber, an alkali metal or alkaline earth metal carboxylate, an ether and an oxide or hydroxide of a Group IIA metal as exemplified by halogenated butyl rubber containing both bromine and chlorine stabilized with a composition comprising calcium stearate, polyethoxylated adducts of sorbitol esterified with from 1 to 6 moles of oleic acid and mixtures thereof, and calcium hydroxide. Halogenated butyl rubbers stabilized in the manner disclosed exhibit im-proved rsistance to discoloration upon high temperature exposure, such as during the drying of polymers in the course of manufacture.
Patent CA-1133976-A (CA)
Title: Bearing member supporting compressor component  on stator lamination stack
Inventor: TANKRED HANS J
IPC: H02K1/18
Filed: 1979-04-05
Granted: 1982-10-19
Abstract: ABSTRACT OF THE DISCLOSURE        The invention relates to an electric motor in which the planar base surface of a bearing member carrying the rotor shaft is pressed against the end face of the packet of stator laminations with the aid of bolts passing through holes in the packet, particularly a motor compressor in which the rotor is supported at only one side, the bearing member also carries the fixed part of the compressor and the associated bolts are provided substantially only on one side of a longitudinal medial plane.
Patent CA-1149217-A (CA)
Inventor: SPRINTSCHNIK GERHARD
IPC: G03F7/016
Filed: 1979-07-31
Granted: 1983-07-05
Abstract: Hoe 78/K 047 LIGHT-SENSITIVE COPYING MATERIAL BASED ON DIAZONIUM SALT CONDENSATION PRODUCTS AND PROCESS FOR THE MANUFACTURE THEREOF                      Abstract of the Disclosure This invention relates to a light-sensitive copying material comprising a coating support and an optically homogeneous light-hardenable coating which contains a condensation product of an aromatic diazonium salt and a water-insoluble macromolecular polymer, wherein the coating is applied from a stable dispersion of the water-insoluble polymer under conditions such that after drying an optically homogeneous coating is formed. The invention also relates to a process for the manufacture of a light-sensitive copying material containing the optically homogeneous light-hardenable coating.
Patent CA-1119978-A (CA)
Inventor: LAMARCHE PAUL E
IPC: F16F15/123
Filed: 1979-08-09
Granted: 1982-03-16
Abstract: EXTENDED TRAVEL VIBRATION DAMPER ASSEMBLY                       Abstract An extended travel vibration damper assembly for use in a torsional coupling such as a torque converter wherein the damper assembly is incorporated in a speed responsive lock-up coupling between the impeller and the turbine of the torque converter.  A rotatable member between the housing and turbine carries a plurality of speed-responsive actuated friction clutches and is connected to the driving housing of the vibration damper. Within the housing are a pair of floating equalizers journalled on a hub having a pair of radially extending arms and spring sets are positioned between the hub arms and equalizers for actuation by the housing to rotate the hub which is operatively connected to the turbine of the torque converter.
Patent CA-1127534-A (CA)
Inventor: YAN TSOUNG-YUAN
IPC: E21B43/28
Filed: 1979-08-27
Granted: 1982-07-13
Abstract: 9958    Abstract A method for restoring a formation which has undergone an in situ leaching operation wherein minerals oxidized during the leach operation pose a contamination threat to the formation water.  In the present invention, the formation is flushed with a restoration fluid which contains a reducing agent capable of reducing the oxidized minerals to their reduced, insoluble state so that they are redeposited into the formation.  Examples of suitable reducing agents are hydrogen gas, hydrogen sulfide, sulfur dioxide, carbon monoxide, and ferrous iron solutions.
Patent CA-1108494-A (CA)
Inventor: SHIOYA TOSHIO
IPC: F02M25/07
Filed: 1979-09-14
Granted: 1981-09-08
Abstract: ABSTRACT OF THE DISCLOSURE, Exhaust gas recirculation apparatus for an internal combustion engine employs a vacuum responsive control valve in a passageway connecting the engine exhaust passage to the engine intake passage downstream from the throttle valve.  A unitary housing comprising a base, a body, and a cap contains an air control valve and a regulating valve each having a flexible diaphragm responsive to differential pressure.  The diaphragm for the air control valve is clamped between the cap and the body, and the diaphragm for the regulating valve is clamped between the body and the base.  Vacuum pres-sures on opposite sides of the diaphragm for the air control valve are obtain-ed from a control pipe system and from an air conduit downstream from the air control valve.  Vacuum pressures on opposite sides of the diaphragm for the regulating valve are obtained from a vacuum line and from the air conduit upstream from the air control valve.  The regulating valve acts to control vacuum pressure in the control pipe system by bleeding vacuum pressure therein through a variable opening into the vacuum line.
Patent CA-1167154-A (CA)
Inventor: HOWELLS ANTHONY P S
IPC: G01V11/00
Filed: 1979-10-10
Granted: 1984-05-08
Abstract: INTEGRATED WELL LOGGING SYSTEM AND METHOD            Abstract of the Disclosure An improved well logging technique is provided for more accurately deriving and correlating a plurality of measurements made during a single traversal of a logging instrument through subsurface formations.  In one exemplary embodiment, methods and apparatus are provided for deriving a more accurate and precise measurement of depth at which real-time logging measurements are made, and in particular for correcting anomalies occurring in the depth indication from cable stretch, yo-yo of the sonde in the borehole and the like.  The more accurate and precise depth measurement is then utilized for generating well logging measurements on a depth-dependent basis, deriving at least some of such measure-ments in digital form and alternately transmitting to the sur-face digital and analog representations of such measurements. Furthermore, methods and apparatus are provided for deriving measurements of sub-surface earth formation from a plurality of logging instruments combined in a single tool, wherein such measurements are made during a single pass through a borehole with the resultant measurement data correlatively merged, recorded and displayed.
Patent CA-1147754-A (CA)
Inventor: KEELEY DONALD E
IPC: C07C43/23
Filed: 1980-02-07
Granted: 1983-06-07
Abstract: ABSTRACT OF THE DISCLOSURE      Meta, para-substituted isopropylidene bisphenols are provided and methods for making such materials. Phenol, or substituted phenol is condensed with a meta-substituted isopropenyl phenol or a meta-hydroxy- .alpha., .alpha.-dimethylbenzyl alcohol in the presence of an acid catalyst.  The re-sulting meta, parasubstituted isopropylidene bisphenols can be used as stabilizers for polyvinyl chloride resins and as intermediates for making high performance ther-moplastics having chemically combined meta, para-isopro-pylidene diphenoxy units.
Patent CA-1143513-A (CA)
Inventor: VON DER ELTZ HANS-ULRICH
IPC: D06B3/28
Filed: 1980-02-15
Granted: 1983-03-29
Abstract: PROCESS FOR THE TREATMENT OF TEXTILES IN JET DYEING                      APPARATUSES               Abstract of the disclosure: Process for the treatment of textiles in rope form with gaseous and/or liquid treating agents in jet dyeing units, wherein the charging of the jet apparatus with the material rope as well as the material transport in the unit is carried out by way of a gas current, especially steam, escaping from nozzles and being directed onto the fibrous material under excess pressure. To start the process, the gas current and the fluid current may be used in an alternative manner or may be combined. The process is particularly suitable for the isothermal dyeing of textiles in rope form with heat-fixable dyestuffs in accordance with the batchwise exhaustion method.
Patent CA-1139890-A (CA)
Inventor: SEE GARY G
IPC: G06F3/023
Filed: 1980-02-15
Granted: 1983-01-18
Abstract: Abstract There is disclosed herein a data entry device designed for general use, and whose functional configuration may be readily changed to meet the specific needs of a number of different customers, each requiring a special assortment of operational features.  The device (10) includes a housing (12) having a keyboard (14) including function control and data entry portions (18 and 20).  In one embodiment, a plurality of different overlays (22) may be received over the function control portion of the keyboard.  Each overlay carries an array of key labels (26), and is pliant enough to permit an underlying key to be actuated by depressing an appropriate key label.  Tabs (30, 32, 34) projecting from the frame (24) carrying the overlay actuate switches (132, 134, 136) in the device to identify which overlay is carried by that frame.  Other means of identifying the overlays to the data entry device are also shown.  A different, permanent set of keys is provided for data entry in this embodiment.  In another embodiment, an interchangeable mylar overlay (154) is also provided for the data entry portion of the keyboard.  If the device includes a readout or display, the portion of the device (168) carrying legends for the display can also be changed with the overlay.
Patent CA-1139996-A (CA)
Inventor: JONES BRIAN C
IPC: F23K1/00
Filed: 1980-05-05
Granted: 1983-01-25
Abstract: FLUIDIZED BED BOILER FEED SYSTEM            Abstract of the Invention A fluidized bed boiler feed system for the combustion of pulverized coal.  Coal is first screened to separate large from small particles.  Large particles of coal are fed directly to the top of the fluidized bed while fine particles are first mixed with recycled char, preheated, and then fed into the interior of the fluidized bed to avoid elutriation and carryover.
Patent CA-1142789-A (CA)
Inventor: YAMAMOTO HIDEAKI
IPC: G03G5/043
Filed: 1980-06-16
Granted: 1983-03-15
Abstract: Abstract of the Disclosure The invention relates to an electrophotographic plate having a laminated structure comprising a first Se layer containing 3 to 10 % by weight of As, a second Se layer containing 40 to 47 % by weight of Te and 3 to 10 % by weight of As and a fourth Se layer consisting solely of Se or comprising Se and up to 10 % by weight of As or an organic semiconductor layer.  A substrate is arranged so that at least the face of the substrate which is contiguous to the face of one of the first Se layer and the fourth Se layer or organic semiconductor layer, that is located on the outer side of the laminated structure, is electrically conductive.  It is preferred that the fourth Se layer be formed by vacuum evaporation deposition while maintaining the substrate temperature at 50 to 80°C . The resulting electrophotographic plate is sensitive to radia-tion of wavelength in the range of 600 to 800 nm, thus enabling the plate to be used with semiconductor lasers which such emit radiation.
Patent CA-1124132-A (CA)
Inventor: CARRIERI LOUIS F
IPC: B30B15/06
Filed: 1980-06-23
Granted: 1982-05-25
Abstract: LOAD EQUALIZER FOR PRESS TOOLING    Abstract of the Disclosure A pair of press tools, such as punches, are mounted on a tool support for axial reciprocation between extended and retracted positions with respect to the support.  The tool support may be defined by a press slide, bed or component part of a tooling package mountable thereon and is provided with a hydraulic fluid receiving cylinder for each of the tools.  Each tool is interconnected with a piston received in the corresponding cylinder and the cylinders are in flow communication with one another.  Accordingly, if one of the tools engages a workpiece before the other during operation of the press, the one tool is displaced in the direction of retraction causing the other tool to be displaced in the direction of extension until both tools engage the workpiece, thus to avoid eccentric loading of the press slide and frame. Both tools have a neutral position with respect to their ex-tended and retracted positions and, upon movement of the press slide away from the work, a biasing arrangement returns the extended one of the tools to its neutral position and the displacement of the corresponding piston causes the retracted tool to be returned to its neutral position.
Patent CA-1156329-A (CA)
Inventor: DEKKER DIRK
IPC: B21B37/16
Filed: 1980-07-11
Granted: 1983-11-01
Abstract: "Setting of a multi-stand rolling mill train for the cold-rolling of metal strip"                ABSTRACT OF THE DISCLOSURE    To calculate process variables to be used in setting a multi-stand rolling mill train for a given strip, the strip is first classified into one of a plurality of predetermined thickness groups, in dependence on (a) the strip entry thickness, (b) the strip exit thickness and (c) the desired surface rough-ness on exit.  Standard values for the selected class, relating to (a) reduction distribution, (b) deformation work  and deformation force per unit width and (c) tensile stress, are then converted into adapted values by means of linear functions using the actual strip data values.          The process variables are then calculated from these adapted values.  This method is simple, but provides adequate precision for the setting of the train.
Patent CA-1151077-A (CA)
Inventor: IWAHORI HIROSHI
IPC: B01D67/00
Filed: 1980-08-07
Granted: 1983-08-02
Abstract: ABSTRACT OF THE INVENTION    Module and method for providing a safe treatment of nonconductive organic solutions containing inflam-mable solvents by passing such solutions under pres-sure through electrically conductive perforated tubes supporting membrane assemblies therein and being grounded through the case of the module.
Patent CA-1151645-A (CA)
Inventor: RACKUR GERHARD
IPC: C07D487/04
Filed: 1980-08-13
Granted: 1983-08-09
Abstract: Abstract of the Disclosure Processes for the preparation of compounds of the formula   in which R1 and R2 are identical or different and represent hydro-gen atoms or alkyl groups with 1-6 C atoms, it also being possible for one of the radicals R1 and R2 to be, in each case, a benzyl, trifluoromethyl or phenyl group, R3 denotes a hydrogen atom, an alkyl group which has 1-6 C atoms and is optionally substituted by an aryl group, an alkoxy group with 1-6 C atoms, a trifluoro-methyl group, a dialkylamino group with 2-12 C atoms or a cyclo-alkyl group with 3-6 C atoms, an alkenyl or alkynyl group with 2-6 C atoms, a cycloalkyl group with 3-6 C atoms or a carbalkoxy group with 2-6 C atoms, R4 is a hydrogen atom and R5 can be a phenyl group, a phenyl group which is monosubstituted or disubstituted by methyl Cl, Br, F, nitro, cyano and or trifluoro-methyl or a pyridyl group and medicaments containing these compounds.  The compounds have anxiolytic and anticonvulsive action and in some cases also an antiphlogistic action.
Patent CA-1141766-A (CA)
Inventor: KAUFMAN KURT D
IPC: A61K8/00
Filed: 1980-09-09
Granted: 1983-02-22
Abstract: APPLICATION FOR LETTERS PATENT                FOR     ABSTRACT OF THE DISCLOSURE     The invention relates to 8-aminoalkyl-4-alkylpsoralens having enhanced photosensitizing activity, especially oral activity, including  early onset, increased maximum, and rapid decline, as well as low toxicity, when compared with psoralens of different structure.  Process for the production thereof.                                INVENTOR                      Kurt D. Kaufman 2205 Benjamin Avenue Kalamazoo, Michigan   49008
Patent CA-1141437-A (CA)
Title: Large dynamic range multiplier for a  maximal-ratio predetection diversity combiner
Inventor: CERNY FRANK J JR
IPC: H04B7/12
Filed: 1980-09-22
Granted: 1983-02-15
Abstract: Abstract An improved large dynamic range multiplier is dis-closed that provides substantially ideal multiplication for signals within a maximal-ratio predetection diversity combiner.  Linear product multiplication is necessary in the second mixing stage of the maximal-ratio predetection diversity combiner, where it is essential that the mixer product signal be proportional to the product of its input signals, which each have a dynamic range in excess of 40 db.  The multiplier, which in the preferred embodiment of the present invention is a field-effect-transistor device, provides a product signal that has a linear dynamic range approaching 130 db, far in excess of the 80 db necessary to accommodate typical input signals having a 40 db dynamic range.
Patent CA-1140651-A (CA)
Inventor: HEYDWEILLER JAMES
IPC: H01H35/14
Filed: 1980-11-26
Granted: 1983-02-01
Abstract: ELECTRICAL SWITCH MECHANISM           ABSTRACT          An electrical switch mechanism which operates in response to predetermined deceleration and/or accel-eration is especially adopted for use on board trains for brake assurance purposes.  Switch contacts biased to a safe switching condition are actuated by an arm.  A pedulum pivots a predetermined distance with respect to the vertical.  In response to a predetermined accelera-tion or deceleration, the arm is carried by the pendulum and may be mounted on a bracket plate such that the arm is set at a predetermined inclination with respect to the vertical.  The arm actuates the switch contact only when the train reaches the predetermined acceleration or deceleration.  The switch mechanism is vital in opera-tion in that the safe switching state is maintained in the absence of actuation.  By adjustment of the bracket and arm inclination the mechanism can be set to respond to different selected accelerations and/or decelera-tions.  Two sets of contacts biased in opposite direc-tions may be actuated by separate arms each carried by the pendulum.  The mechanism is then responsive to deceleration in opposite directions is especially useful in trains which run in opposite directions without turn-ing around, such as subway trains.
Patent CA-1163295-A (CA)
Inventor: MARTIN JOHN L
IPC: H05B3/60
Filed: 1980-12-12
Granted: 1984-03-06
Abstract: ABSTRACT     A cleaning system fox clearing residue left within the internal surfaces of the apertures of a particle study device in which particles in suspension are passed through one or more microscopic apertures to generate particle related signals for study of the particles in the suspension by applying thereto energy through the apertures sufficient to boil the fluid therein.  The energy is applied in the form of a low magnitude D.C. current at a constant level for a continuous predetermined length of time, the energy applied being less than two tenths watt seconds.
Patent CA-1157929-A (CA)
Inventor: KING WILLIAM R
IPC: B01D1/00
Filed: 1981-01-13
Granted: 1983-11-29
Abstract: FLUID FLOW CONTROL Abstract of the Disclosure A plurality of spray nozzles are utilized to introduce a fluid into a vessel. Control valves are associated with each one of the plurality of spray nozzles. The control valves are either fully closed or fully open. The actual value of a process variable is compared to the desired value of the process variable to generate a difference signal. Control signals are generated in response to the difference signal. Different combinations of the control valves are opened in response to the control signals so as to provide a fluid flow rate which will maintain the actual value of the process variable substantially equal to the desired value. The on-off nature of the control valves provides a substantially maximum pressure drop across the spray nozzles when fluid is flowing through the spray nozzles.
Patent CA-1175506-A (CA)
Inventor: WALTERS NIGEL J
IPC: H03L7/187
Filed: 1981-01-15
Granted: 1984-10-02
Abstract: ABSTRACT:     In phase lock loop frequency synthesisers, it is known to use a successive addition rate multiplier as part of the variable frequency dividing means and to use the residue in the rate multiplier to provide a correction signal which is used to balance out ripple which appears in the frequency control signal fed to the variable fre-quency oscillator which provides the output frequency of the synthesiser, the ripple being caused by phase jitter in an input signal to the phase comparator.  The invention improves the ripple elimination by means of a feedback loop in which any residual ripple is detected and the cor-rection signal is automatically adjusted accordingly to eliminate the ripple.