baber/WOPTO huggingface dataset:
Patent CA-1040369-A (CA)
Inventor: FARRELL JOHN J
IPC: B29C33/20
Filed: 1974-08-29
Granted: 1978-10-17
Abstract: APPARATUS FOR CLAMPING MOLD OF INJECTION                     MOLDING MACHINE               ABSTRACT OF THE DISCLOSURE       This molding machine has a mechanical linkage that opens and closes the mold without applying pressure to hold the mold closed.  Hydraulic cylinders with short strokes apply pressure after the mold is closed and the mechanical linkage is no longer in motion. Mechanical wear is thereby eliminated.  For multi-mold machines, the linkage for the different molds are mechanically connected and operated simultaneously form a common power source.  Where the movable mold parts are heavy, an auxiliary power cylinder connected with the movable mold part in line with its center of gravity can be used to open the mold with less effort required from the linkage.
Patent CA-1039064-A (CA)
Inventor: COTTAM STEPHEN M
IPC: C25C1/00
Filed: 1974-12-05
Granted: 1978-09-26
Abstract: Abstract of the Disclosure A process for producing metallic lead and silver from materials such as ores and concentrates containing the corresponding sulfides in which the materials are subjected to a first leaching with an aqueous ferric salt solution such as ferric chloride to convert the sulfides to the corresponding salts containing lead and silver and generating the corresponding ferrous salt solution which may be separated as a filtrate, subjecting the solid residue from this first leaching to a second leaching with aqueous sodium chloride brine to dissolve the lead and silver salts such as the chlorides so that their solutions can be separated as a filtrate and leaving a further solid residue, cooling this solution of the lead and silver salts to crystallize and thereby separate the lead salts leaving the silver sales dissolved in the filtrate, removing the lead salt crystals from the resulting silver salt solution, contacting this silver salt solution with metallic cop-per to produce cement silver, and producing lead metal and chlorine gas by electrolysis of the lead chloride.  The disclosure also includes a further leaching with sodium sulfide after the brine leach followed by a further ferric leach and a further brine leach.  The  ?isclosure also includes a process in which ferric chloride solution is regenerated in situ in the portion of the apparatus where the first leaching takes place from the ferrous chloride solution that is produced during the leaching plus added chlorine gas which may be produced from molten salt electrolysis of lead chloride to produce lead metal and the chlorine.          The disclosure also includes a process in which the metal sulfides in-clude tetrahedrite minerals that are normally resistant to ferric salt solution leaching and in which this ore is pretreated prior to the fer-ric solution first leaching with an aqueous alkaline sodium hydroxide solution to decompose the tetrahedrite after which the solid residue remaining is subjected to the process outlined above.
Patent CA-1048354-A (CA)
Inventor: RAMAGOPAL G R
IPC: B41M1/30
Filed: 1974-12-12
Granted: 1979-02-13
Abstract: PRINTING OF REGENERATED CELLULOSE SAUSAGE CASING                  ABSTRACT OF THE DISCLOSURE         In the printing of clear, regenerated cellulose or fiber reinforced regenerated cellulose sausage casings, improved adhesion of the ink to the casing and improved drying time for the imprint are obtained by first applying to a substantial pro-portion of the external surface of said casing a film forming primer coating comprising a film forming polymeric polyisocyanate in an active hydroxyl free solvent, drying the primer coating thereby producing a tacky pressure sensitive film, and then imprinting over the primer coated area with an oil based ink or a flexographic ink.
Patent CA-1038134-A (CA)
Inventor: MERKL GEORGE G
IPC: A61Q15/00
Filed: 1974-12-20
Granted: 1978-09-12
Abstract: ABSTRACT OF THE DISCLOSURE       The invention is concerned with a method for preparing an aluminum halohydrate in which there is first formed a reactive aluminum by permeating highly pure aluminum in the presence of a hydrogen ion source with less than about 5% by weight of mercury, and afterwards this reactive aluminum is reacted with an aqueous solution of a halogen acid of chlorine, bromine, iodine or fluorine at a temperature of less than 200°F to form a liquor of the aluminum halohydrate.          The liquor is then collected.
Patent CA-1049570-A (CA)
Inventor: SHIMA TAKEO
IPC: C07B61/00
Filed: 1975-06-03
Granted: 1979-02-27
Abstract: ABSTRACT OF THE DISCLOSURE         In the method wherein an alkenylation reaction product liquid obtained by the alkenylation reaction of an alkylbenzene and a C4-C5 conjugated diene in the presence of alkali metal catalysts and containing unreacted alkylbenzene, alkali metal catalysts and organo-alkali metal compounds is conveyed to a dis-tillation zone at which said alkenylation reaction product liquid is separated by distillation to recover an alkenylbenzene-con-taining fraction and an unreacted alkylbenzene-containing frac-tion, the improvement which comprises adjusting the total of the concentrations of said alkali metal catalysts and organo-alkali metal compounds in said alkenylation reaction product liquid introduced to the distillation zone so as to be 0.09 - 15 milli-gram atoms per kilogram or said product liquid, calculated as alkali metal atoms, and thereafter conducting the distillation of said product liquid under conditions of non-addition of alcohols.
Patent CA-1057501-A (CA)
Inventor: JAGO JOHN J
IPC: G01B21/20
Filed: 1975-06-16
Granted: 1979-07-03
Abstract: ABSTRACT OF THE DISCLOSURE      Apparatus for detecting and reducing bowing of a rotating roll used with hot material comprises a proximity sensor mounted adjacent the surface of the roll or of a member attached thereto, and arranged to generate an electric signal which varies between maximum and mini-mum limit values during each revolution of the roll in dependence on any bowing of the roll, cooling means for selectively cooling parts of the roll and a bowing detection circuit arranged to receive the electric signal and provide an operating signal when the electric signal varies by more than a predetermined amount from one of the said limit values, and actuating means arranged to respond to the operating signal and operate the cooling means to cool a required part of the roll to reduce bowing.
Patent CA-1048693-A (CA)
Inventor: LEFFINGWELL BRUCE E
IPC: C08F4/32
Filed: 1975-10-22
Granted: 1979-02-13
Abstract: ABSTRACT OF THE DISCLOSURE           The admixture of the tri(hydromethacrylate) of tris (dimethylaminomethyl) phenol with conventional monomer and polymer components of vinyl-polymerizable liquid sealants yields compositions which have accelerated cure times and superior adhesion.
Patent CA-1060947-A (CA)
Inventor: ISHIDA YOTSUO
IPC: H01T4/16
Filed: 1975-10-27
Granted: 1979-08-21
Abstract: Abstract of the Disclosure Two main toroidal electrodes are supported to individual support plated to oppose   each other.  A rod-shaped consumable electrode disposed on one of the support plates extends through the central opening of the toroidal electrode supported to the same support plate as the consumable electrode and terminates within the central opening of the other toroidal electrode.  The consumable electrode is opposite to a similar consumable electrode disposed on the other support plate.  All the electrodes are higher in electric resistivity than the support plates and may be formed of carbon.
Patent CA-1036664-A (CA)
Inventor: OTT EDUARD K
IPC: H02P27/02
Filed: 1975-11-10
Granted: 1978-08-15
Abstract: TITLE:  SOLID STATE ALTERNATING CURRENT         SWITCHING DEVICE                      Abstract of the Disclosure A solid state alternating current switching device is described having a pair of series connected triacs in which the individual breakover voltages of the triacs are less than the peak line voltage and the sum of the individual breakover voltages is greater than the peak line voltage.  An isolated circuit directly interconnects the gate terminals of the triacs to selectively bleed an internal triac gate current through the circuit to trigger the triacs to their conductive states.
Patent CA-1068461-A (CA)
Inventor: FORGENSI RUDOLPH
IPC: G03G9/107
Filed: 1975-12-09
Granted: 1979-12-25
Abstract: MAGNETITE ELECTROSTATOGRAPHIC CARRIERS            ABSTRACT OF THE DISCLOSURE         In preferred form, the inventive concept utilizes a carbon arc plasma flame assembly wherein magnetic ore particles are fed to the plasma flame assembly in the presence of an inert non-oxydizing, gaseous atmosphere.         The plasma flame assembly comprises a cathode and at least two carbon anodes to which is fed oxygen gas in a controlled amount.  Upon contact with the plasma flame, the ore particles become molten droplets which fall by gravity into a spheroidization column having a controlled atmosphere.          As the molten droplets fall, they cool and become spheroidal particles.  The chamber wherein the heating occurs is sub-stantially sealed and is initially purged with inert gas.          In addition, the spheroidization column is fitted with an exhaust system which maintains the integrity of the process-ing atmosphere and that of the spheroidized particles.
Patent CA-1066923-A (CA)
Inventor: UNSWORTH WILLIAM
IPC: C22F1/00
Filed: 1975-12-29
Granted: 1979-11-27
Abstract: ABSTRACT           Magnesium alloys having favourable tensile properties contain silver, copper and neodymium.  The alloys are subjected to a solution heat treatment followed by ageing to give optimum properties.
Patent CA-1043329-A (CA)
Inventor: TOMASICCHIO GIORGIO
IPC: F28G7/00
Filed: 1975-12-30
Granted: 1978-11-28
Abstract: Cleaning Heat Exchanger Tubes ABSTRACT OF THE DISCLOSURE     Heat exchanger tubes exposed to high-temperature gases from which dust or scale is deposited on the tubes are subjected to force applied at the resonant frequency of the tube array to remove deposits on the tube surfaces.
Patent CA-1075261-A (CA)
Inventor: FERNHOLZ HANS
IPC: C07C67/055
Filed: 1976-02-13
Granted: 1980-04-08
Abstract: PROCESS FOR THE PREPARATION OF CARBOXYLIC                    ACID ALKENYL ESTERS          Abstract of the Disclosure:   Process for the preparation of alkenyl esters of carboxylic acids in the gaseous phase from carboxylic acids, olefins and oxygen or oxygen containing gases in the presence of palladium carboxylate catalysts; the carboxylic acid concentration in the feed gas being lower in the starting period of the process than the intended final concentration, and subsequently being increased either continuously or stepwise  until the final concentration is attained.
Patent CA-1061425-A (CA)
Inventor: KINDELL COLIN D
IPC: H01H3/00
Filed: 1976-03-08
Granted: 1979-08-28
Abstract: ABSTRACT              An electrical contact has a tubular body defining a passageway for receiving a mating post.  The tubular body is generally rectangular in transverse cross-section and two substantially identical contact arms struck out from the body and bowed inwardly of the passageway to present contact surfaces extending towards the longitudinal axis of the passageway.  Each contact arm has one end integral with the body and an opposite free end laying outside the passageway and engaging an individual stop on the body, which stop prevents outward movement of the opposite free ends away from the longitudinal axis of the passageway.
Patent CA-1063023-A (CA)
Inventor: BAUER KURT
IPC: A61K8/04
Filed: 1976-04-27
Granted: 1979-09-25
Abstract: PARTICULATE COMPOSITIONS FOR OINTMENT PREPARATION                    Abstract A particulate solid composition from which an ointment can be rapidly prepared comprises an anionic crosslinked high molecular weight carboxyvinyl polymer and admixed with an alkaline substance.  Either or both of the polymer and the alkaline substance is coated with one or more emulsifiers and/or lipophilic vehicle substances.
Patent CA-1040229-A (CA)
Inventor: BEACH ROY G
IPC: B62D53/06
Filed: 1976-05-19
Granted: 1978-10-10
Abstract: ABSTRACT      A vehicle trailer for attachment to a tow vehicle having a mechanism for connecting the tongue to the trailer that allows the trailer platform to tilt and swing. It has been found desirable in loading a single axle trailer to permit a power-operated vehicle such as a snowmobile, lawn mower, small garden tractor or the l??e to be driven on to the rear end of the trailer platform and driven off the front end thus requiring (a) that the rear end of the trailer platform be tiltable to the ground level for loading and (b) that the trailer be pivotable to allow the front end of the platform to swing to either side and be tiltable in such transverse position to ground level for safe and convenient front end drive-off unloading.  The trailer tongue that may be disconnectably attached at its forward end to the tow vehicle by any suitable trailer hitch is connected at its rear end to the under side of the trailer at a distance in advance of the trailer axle by a mechanism that includes both horizontal and vertical pivots and, is addition, intermediate its ends is releasably en-gaged by a locking means that couples to a holding device on the center front of the trailer for normal towing operation of the trailer and to secure i? against unwanted tilting or swinging on the respective pivots. By positioning the tongue connecting device a suitable distance in advance of the axle, the front end of the trailer when uncoupled from the tongue locking means may be swung through approximately 90° to either side and by suspending the horizontal pivot a sufficient distance below the trailer plat-form the front end of the trailer can be tilted to ground level for front end drive-off unloading without interferring with the tongue.
Patent CA-1085043-A (CA)
Title: Still color television signal recording and reproducing apparatus
Inventor: TANAKA YOSHINORI
IPC: H04N1/64
Filed: 1976-06-18
Granted: 1980-09-02
Abstract: ABSTRACT OF THE DISCLOSURE There is disclosed a still color television signal recording and reproducing apparatus which utilizes a single storage tube of a conventional type. Circuitry is shown which enables to store one field or frame of a color television signal together with a color burst signal in a storage tube and to read out the stored signal from the storage tube with minimum frequency deviation for the color burst and chrominance signals. Then, the read out signal is supplied to a color television monitor including a reference oscillator which is phase-locked to the color burst signal in order to demodulate a plurality of color component signals whereby a still color picture of good quality is reproduced on a cathode ray tube in the color television monitor.
Patent CA-1052929-A (CA)
Inventor: DITTRICH FERDINAND J
IPC: C23C4/06
Filed: 1976-06-28
Granted: 1979-04-17
Abstract: Abstract of the Disclosure A flame-sprayable flexible wire comprising a min-eral powder having a particle size of less than about 140 mesh and about 5 to 70 % by volume of the wire of a polyurethane or epoxy polymer.  Advantageously the wire is pro-duced by forming the requisite mixture plus a curing agent, effecting a partial cure in a sheet form, crumbling the sheet to coarse granules and extruding the granules to form the wire.  The mineral powder particles may first be coated with a surface active resin such as a silicone which promotes adhesion to the polymer and which protects the polymer from the degradative effect of the mineral.   The preferred surface active resins are silicones.  The wire retains its strength and flexibility over long periods of time and produces high quality flame sprayed surfaces.
Patent CA-1055143-A (CA)
Inventor: FILIPOVIC DOMINIK
IPC: H03J9/00
Filed: 1976-06-29
Granted: 1979-05-22
Abstract: ABSTRACT            A remote control-digital tuning interfacing system wherein an "on board" receiver at the means to be controlled receives coded transmission from the remote point and demodulates it to produce a digitally coded output which is fed through a selectively controlled gating circuit to an "on board" decoder pro-ducing the appropriate control voltages to selectively operate electronic switching means, the electronic switching means parallel "on board" manually operated switches so that a remote control operator can effect, from a remote point, thus switching correspond-ing to that performed at the remote point, thus, only the switching is duplicated and the control complication all resides at the means to be controlled location rendering the system useful for one or more digit entry control.
Patent CA-1059559-A (CA)
Inventor: ATHERTON RALPH R
IPC: B60R21/13
Filed: 1976-07-16
Granted: 1979-07-31
Abstract: NARROW BASE PROTECTIVE FRAME                  ABSTRACT OF THE DISCLOSURE         A narrow base protective frame to allow greater axial adjustment of the rear drive wheels on a tractor to vary the tread width of the wheels.  The protective frame provides protection for the operator in event of rollover of the vehicle and has reinforcing structure between upright columns mounted on the rear drive axles.
Patent CA-1056555-A (CA)
Inventor: SELMECZI JOSEPH G
IPC: C02F11/12
Filed: 1976-07-19
Granted: 1979-06-19
Abstract: Abstract The solids content of aqueous coal sludge slurries such as coal washings are stabilized in a hardened state by concentrating the solids content thereof, adding to the con-centrated coal sludge 2-50% by weight of the solids of granulated blast furnace slag, with intimate mixing, and maintaining the mixture in a quiescent state and in the presence of excess water to produce a sedentary mass having load supportive properties suitable as landfill.     -?-
Patent CA-1079556-A (CA)
Inventor: SUSSMAN MILTON H
IPC: G02B25/00
Filed: 1976-07-29
Granted: 1980-06-17
Abstract: ABSTRACT OF THE DISCLOSURE          A two element 10X eyepiece has a field of view of about 44° and provides a wide field (20mm) with lenses having curve-diameter ratios considered desirable from a manufacturing view.  The eyepiece is well-corrected for coma, astigmatism, distortion and color, having a focal length F and two lens elements aligned along an  optical axis extending from the focal plane of the eyepiece.  A double convex positive singlet I is the first element and a convex-plano positive doublet is the second element to provide a Petzval radius of 1.42F and eye-relief of 0.78F.
Patent CA-1064606-A (CA)
Inventor: MIFUNE HIDEO
IPC: G08B13/16
Filed: 1976-07-29
Granted: 1979-10-16
Abstract: ABSTRACT OF THE DISCLOSURE:           A piezoelectric transducer is secured to the surface of a glass sheet to translate mechanical vibrations generated in the glass sheet into an electrical signal when a crack is produced.          A detection circuit is connected to the transducer to determine whether the frequency of the signal is above or below a predeter-mined value.  If the frequency is higher than the predetermined value, a warning signal is derived to indicate a crack and there-fore a burglary.  Alternatively, the piezoelectric transducer in the transmit mode is excited electrically by an impulse to intro-duce an elastic wave into the glass sheet.  A gate circuit is connected to the transducer to pass signals resulting from reflec-tion of the elastic wave from discontinuities in the glass sheet which result from the crack.  The reflected crack indicating signals are passed through the gate to the transducer when it is in the receiver mode.
Patent CA-1071146-A (CA)
Inventor: HOPKINS JEFFREY E
IPC: B44D3/12
Filed: 1977-01-05
Granted: 1980-02-05
Abstract: ATTACHMENT FOR RIMS OF PAINT CANS          OR THE LIKE     Abstract of the Disclosure A shield is snap fit onto the upper rim of a conventional paint can and serves the dual purpose of providing a place for scraping excess paint from a paint brush as it is withdrawn from the paint can and at the same time, preventing the removed paint from running down the sides of the can and getting into the upper channel or groove.  Structurally, the device includes an annular shield member having depending snap attachment means for releasably attaching the shield to the upper rim of the can and a pair of vertically and horizontally spaced, annular wire scraping members supported above the upper surface of the shield against which the brush is pressed to remove excess paint therefrom.
Patent CA-1056178-A (CA)
Inventor: SCHUPACK MORRIS
IPC: B28B21/56
Filed: 1977-01-12
Granted: 1979-06-12
Abstract: Abstract of the Disclosure Reinforced panel structure include a panel core formed from a cementitious composition that has controlled bleed characteristics.  For example, the cementitious composition may comprise hydraulic cement, a dis-persing agent, a gelling agent, and water.  At least one woven, fabric re-inforcing layer in the form of a sheet is laminated in the panel core closely adjacent at least one of its faces.  The controlled bleed characteristics of the core composition insures that the reinforcing layer is bonded tightly thereto.  The fabric from which the layer is made has a tensile strain that is compatible with the compression strain of the panel core to permit the panel to be cold formed.  The cold formable reinforced panel is produced by providing at least one sheet of woven fabric; combining the components of the cementitious composition which may include hydraulic cement, a gelling and a dispersing agent, and water; encapsulating the fabric sheet with the cementitious composition so that the sheet is closely adjacent one face of the uncured composition; vibrating the composition to insure that the fabric is encapsulated therein; and curing the composition.
Patent CA-1085137-A (CA)
Inventor: LIPPMAN ALFRED
IPC: C01B33/08
Filed: 1977-01-14
Granted: 1980-09-09
Abstract: ABSTRACT OF THE DISCLOSURE        The present invention provides a process for the production of aluminum chloride and alumina of metallurgical grade purity, and valuable by-products from aluminous ores like clay, bauxites and laterites. The process comprises carbo-chlorination of the ore to produce aluminum chloride and other metal chlorides. The aluminum chloride is separated, purified and utilized as such or oxidized to make alumina while the other metal chlorides are processed to recover maximum values.
Patent CA-1091755-A (CA)
Inventor: AASEN TORULF F
IPC: G03G21/20
Filed: 1977-03-09
Granted: 1980-12-16
Abstract: COPYING MACHINE              Abstract of the Disclosure A copying machine in which a photo-receptor sheet, wound between supply and take-up reels, serves as an intermediate web which is charged, exposed and developed with toner; the toner then being transferred to copy paper.  The photo-receptor sheet is advanced incrementally from the supply reel to the take-up reel during each copy cycle.  After substantially all of the sheet is wound on the take-up reel, it is rewound on the supply reel, following which it is moved once again in incremental steps in the forward direction during copy cycles.  The supply and take-up reels are mounted in a highly compact module which is easily plugged into or re-moved from the base section, without requiring any thread-ing of the photo-receptor sheet over elements within the base section.  In this way, practically all that is required during a service call to replace the photo-receptor sheet is to substitute one module with a new photo-receptor sheet for the previously used module with the old photo-receptor sheet.          The module is made highly compact by providing for a rela-tively long sheet path within the module past the various copying-step positions, the path length being considerably longer than the length of the minimum tangential line be-tween the wound reels.  Elements in the base section for controlling the copying step functions are arranged around the path in °acing relationship with respective copying step positions in the module.