baber/WOPTO huggingface dataset:
Patent CA-1090187-A (CA)
Title: Camera with pin registration for film and end-of-film  indication means
Inventor: ANESHANSLEY JAMES T
IPC: G03B1/60
Filed: 1980-04-24
Granted: 1980-11-25
Abstract: CAMERA WITH PIN REGISTRATION FOR FILM AND END-OF-FILM INDICATION MEANS    ABSTRACT OF THE DISCLOSURE       A standard 35mm single lens reflex camera is modified to include a pair of film frame registration pins located in the hinged rear cover plate, these pins being movable toward film covering the film apeture, with the ends of the pins being tapered to readily enter a pair of sprocket holes on opposite sides of each frame of film, for precisely registering the po-sition of each frame with the film aperture.  The registration pins engage the film before and during each exposure, and are retracted before each advancement or rewinding of the film Also located on the camera's rear cover plate is a spring-biased indicator pin extending toward the film, and aimed directly at an electrical ground contact on the film guide. This indicator pin is blocked from contacting the ground by the top edge of any film present, but when the top edge of the film is not present, as during the last phase of re-winding or when there is no film in the camera, the indicator pin will auto-matically reach the electrical contact, thereby closing a circuit and turning on an indicator light.
Patent CA-1116468-A (CA)
Inventor: WULFF CAL W
IPC: B61F5/16
Filed: 1980-05-09
Granted: 1982-01-19
Abstract: GROUNDING ARRANGEMENT FOR RAILROAD CAR CENTER PLATE ASSEMBLY BOWL LINERS     Abstract of the Disclosure A grounding arrangement for railroad car center plate assembly bowl liners of the all polymeric type in which the liner is equipped with a grounding device formed from a strip of beryllium copper to define a generally U shaped contact spring having a lower attachment grounding leg or leaf that is anchored at one end to the liner floor underside, adjacent to but spaced from the liner central center pin receiving aperture, and that is to be in flush engagement with the bolster bowl floor; the other end of the attachment leg is integral with a bight portion located in the liner aperture in two point abutting relation to the liner rim defining same, on a chord of the aperture, which bight portion is integral with a follower contact grounding leaf or leg that overlies the upper surfacing of the bowl liner floor and is contained within but is free of securement to the bowl liner, with the follower contact grounding leaf being spring biased away from the liner floor to maintain engagement with the body bolster center plate undersurfacing both when the body bolster center plate is in normal operating position within the bolster bowl, and when car body roll is occasioned that will tilt the car body bolster center plate relative to the truck bolster bowl.
Patent CA-1144142-A (CA)
Inventor: NANNE JOHANNES M
IPC: B01J23/745
Filed: 1980-06-23
Granted: 1983-04-05
Abstract: ABSTRACT           A crystalline iron silicate, suitable as a catalyst in the preparation of hydrocarbons and in combination with a methanol synthesis catalyst especially suitable as a catalyst for the hydrocarbon synthesis from synthesis gas, is prepared from a base mixture in which the silicium (Si), alkali metal (M) and tetra-alkylammonium (R4N) compounds are present in such quantities that the (M2O + (R4N)2O]/SiO2 and M2O/(R4N)2O molar ratios amount to 0.24-0.40 and 0.4-1.0, respectively.
Patent CA-1150822-A (CA)
Inventor: TANAKA SHOSUKE
IPC: H04N5/783
Filed: 1980-07-11
Granted: 1983-07-26
Abstract: APPARATUS FOR PRODUCING A PHASE-SYNCHRONIZED REFERENCE     SIGNAL IN A VIDEO SIGNAL REPRODUCING SYSTEM               ABSTRACT OF THE DISCLOSURE    Apparatus is disclosed for use in a video signal reproducing system of the type having first and second rotary reproducing transducers for reproducing video and vertical synchronizing signals from record tracks on a record medium, in which the transducers exhibit a predetermined angular separation therebetween, the video signal reproducing system also having means for producing a reference synchronizing signal in phase synchronism with the vertical synchronizing signal reproduced by the first transducer.  The apparatus is adapted to produce a sub-stantially phase synchronized reference signal regardless of the particular transducer which is used to reproduce the video signals.  The apparatus comprises a delay circuit for delaying the reference synchronizing signal by an amount corresponding to the predetermined angular separation between the transducers; and a switching circuit supplied with this delayed as well as the undelayed reference synchronizing signal.          A switch control circuit supplies a switch control signal to the switching circuit to determine whether the delayed or undelayed reference synchronizing signal should be selected, the switch control circuit including a detector for detecting the phase relationship between the vertical synchronizing signal which then is being reproduced and the reference synchronizing signal.
Patent CA-1136284-A (CA)
Inventor: BAUGH CHARLES R
IPC: H04J3/16
Filed: 1980-07-15
Granted: 1982-11-23
Abstract: 21.                 DIGITAL LOOP SWITCH FOR CONTROLLING  DATA INFORMATION HAVING DIFFERING   TRANSMISSION CHARACTERISTICS        Abstract of the Disclosure There is disclosed a digital loop for interconnecting a number of data interchangers, each data interchanger connectable over a single high speed communication link to a remote station controller.  The high speed link is arranged to bidirectionally transfer both bursty and continuous data to and from the data interchanger.  A central controller is serially inserted in the digital loop and serves to assign time slots in a frame for information exchange between the various programmable data interchangers.  Each frame contains a first field for data interchange between the data interchangers and the central controller; a second field having time slots assignable under control of the controller to a specific set of data interchangers for transferring information from the continuous data inputs; and a third field having time slots assignable under control of each data interchanger for transferring information from the bursty data input. The controller in cooperation with the data interchangers varies the size of the fields of each frame such that the portion of the field associated with continuous communication expands and contracts as traffic flow changes thereby increasing or decreasing the number of time slots available for the transfer of bursty data.
Patent CA-1138219-A (CA)
Inventor: GRAAS JOSEPH E
IPC: B01D15/08
Filed: 1980-09-22
Granted: 1982-12-28
Abstract: ABSTRACT OF THE DISCLOSURE         A combination of a microcolumn packed with a suitable absorbent material and a centrifuge tube, is disclosed.  A predetermined volume of an eluent being capable of selectively eluting a desired substance through the microcolumn is contained above the packing of the absorbent material.  The microcolumn and the centrifuge tube are dimensioned in such a manner that upon centrifugation of the predetermined volume of the eluent through the microcolumn, a level of the eluent remaining in the microcolumn, and a level of the eluent in the centrifuge tube coincide substantially at or above a top surface of the packing of the absorbent material.  Consequently, centrifugation of the assembly of the microcolumn and the centrifuge tube causes passage of the predetermined volume of eluent through the microcolumn.          Determination or assay of the selectively eluted desired substance may be performed by spectrophotometric methods.          The disclosed device and method is particularly adapted for the determination or assay of a relative concentration of glyco-sylated hemoglobin species present in the red blood cells of a specific person.
Patent CA-1147064-A (CA)
Inventor: BAKER GARLAND W
IPC: G05B19/045
Filed: 1980-10-20
Granted: 1983-05-24
Abstract: PROGRAMMED CONTROLLER     ABSTRACT OF THE DISCLOSURE       An electronic controller for providing one or more sequences of control outputs for a plurality of controlled devices.  The controller includes a pulser which produces pulses at the rate of the frequency of an ac source, a divider for producing spaced pulses preferably at one-second intervals, a counter for counting a large number of these spaced pulses and one or more PROM's.  The PROM's select and actuate one or more sequences stored therein and produce controlling outputs on a plurality of lines to a plurality of controlled devices.
Patent CA-1139318-A (CA)
Inventor: PARKER DANE K
IPC: B01J31/08
Filed: 1980-11-03
Granted: 1983-01-11
Abstract: ABSTRACT             PROCESS FOR PREPARING PRIMARY ALKYLCHLORIDES      There is disclosed a process for the conversion of primary alkyl alcohols to the corresponding alkyl chlorides in the presence of aqueous hydrochloric acid and a catalyst, the improvement characterized in that a resin bound or triphase catalyst is employed.
Patent CA-1141598-A (CA)
Inventor: HENRICH DONALD A
IPC: B63H20/00
Filed: 1980-12-08
Granted: 1983-02-22
Abstract: HYDRO TORQUE SKEG FOIL           ABSTRACT OF THE DISCLOSURE     Disclosed herein is a marine propulsion device including a downwardly extending propulsion leg, the lower end of said propulsion leg including a gear case, a drive shaft housed in the propulsion leg, a propeller shaft located in the gear case, and a propeller mounted on the propeller shaft, rotary operation of said marine propulsion device producing a steering torque on the propulsion leg.          The propulsion leg also includes a skeg extending downwardly from the gear case, the rearward edge of the skeg comprising a foil for producing a torque on the propulsion leg opposite to the torque produced by rotary operation of the marine propul-sion device.
Patent CA-1222227-A (CA)
Inventor: CASTELLI RENATO
IPC: A45C13/02
Filed: 1980-12-16
Granted: 1987-05-26
Abstract: Abstract of the disclosure The tidy element, that is designed to be fixed at the inner face of the back wall of the lid of a case, such as an attaché-case, is formed of several compartments, generally three compartments, two of which are provided with a lid, the third one being provided with an elastic holding strip.          The lid of one of the two compartments provided with a lid bears at the inner face another small lid that opens in the opposite sense. The lid of the other of these two compartments bears, at the inner face, paralleled and aligned small brackets that form rows of racks designed to support items such as pencils, pens and the like.
Patent CA-1179800-A (CA)
Inventor: HEIMSCH ROBERT A
IPC: C08F6/00
Filed: 1980-12-24
Granted: 1984-12-18
Abstract: REFINING OLEFIN/MALEIC ACID COPOLYMERS BY EXTRACTION                  Abstract of the Disclosure Olefin/maleic acid copolymer is refined to pharmaceutical quality by extraction of contaminants with hexane or heptane.
Patent CA-1162829-A (CA)
Inventor: STRATTON JAMES A
IPC: C09J7/02
Filed: 1981-01-27
Granted: 1984-02-28
Abstract: -8-         124, 212 ABSTRACT        CAN/RJG           A tape assembly having a pressure sensitive adhesive coating on both sides of a backing, and a release liner covering one adhesive coating thereon, wherein the release liner has an extended portion to facilitate its removal and wherein the extended portion has a wave-shaped outer edge to facilitate its identification.
Patent CA-1142491-A (CA)
Inventor: CORSETTE DOUGLAS F
IPC: F04B9/14
Filed: 1981-02-13
Granted: 1983-03-08
Abstract: IN THE UNITED STATES PATENT OFFICE                         APPLICATION                             OF                     DOUGLAS F. CORSETTE                          FOR                      LIQUID DISPENSER     ABSTRACT OF THE DISCLOSURE       A fluid dispensing pump includes a pump plunger mounted for reciprocation in a pump cylinder, the plunger having a discharge passage extending therethrough and communicating with a discharge opening in a discharge head connected with the plunger which sealingly engages a retaining collar on a container closure during a lock-down position of the discharge head.  A check valve in the discharge passage includes a cage surrounding a valve opening, and a lower end of the plunger sealingly engages a portion of the cage when in the lock-down position.          The piston is arranged on the plunger to form an air space so as to prevent any hydraulic lock which would interfere with a full depression of the head into its lock-down position.  The sealed locking engagement between the head and the retaining collar is capable of being unlocked by the provision of axially oriented unlocking cam faces for effecting disengagement upon relative rotation between the head and the collar.
Patent CA-1140691-A (CA)
Inventor: MURTO TAPIO H
IPC: H04M11/06
Filed: 1981-03-23
Granted: 1983-02-01
Abstract: INTERFACE CIRCUITS FOR CONNECTION              TO NON-DEDICATED TELEPHONE LINES     Abstract of the Disclosure Receive and transmit paths, for example for frequency shift keyed signals, are coupled to an interface circuit including a line transformer which is permanently connected to the telephone line via a high impedance.  The effect of this high impedance on received signals is counteracted by an amplifier and/or a tuned circuit comprising a winding of the transformer.  Switches in the interface circuit, responsive to received signals, serve to by-pass the high impedance, and reduce the gain of the amplifier and/or eliminate the effect of the tuned circuit, to permit normal coupling of signals between the telephone line and the receive and transmit paths.
Patent CA-1188322-A (CA)
Inventor: DIONNE GERVAIS
IPC: C07C327/38
Filed: 1981-04-02
Granted: 1985-06-04
Abstract: ABSTRACT OF THE DISCLOSURE         N-[(1-Naphthalenyl)thioxomethyl]glycine derivatives are prepared by thionaphthoylation of glycine derivatives.  These derivatives are inhibitors of aldose reductase.  They are therefore useful for treating diabetic complications  for example neuropathy, nephro-pathy, retinopathy cataracts and atherosclerosis.
Patent CA-1168147-A (CA)
Title: Dispositif pour la coupe de fils continus, notamment de fils de verre
Inventor: RONCATO GIORDANO
IPC: B26D7/26
Filed: 1981-05-08
Granted: 1984-05-29
Abstract: BREVET D'INVENTION DISPOSITIF POUR LA COUPE DE FILS CONTINUS, NOTAMMENT DE FILS DE VERRE. Déposant : VETROTEX SAINT-GOBAIN Inventeurs : Giordano RONCATO Jean BERLIOZ Louis ROY L'invention concerne un dispositif pour couper des fils continus en tronçons de longueur prédéterminée. Ce dispositif comprend un tambour d'appui rotatif et un second tambour tournant autour d'un axe parallèle au précédent, équipé d'une part de lames disposées perpendiculairement à sa périphérie et fixées par leurs seules extrémités, d'autre part d'organes assurant sous l'effet de la force centrifuge la compression du fil contre le tambour d'appui et l'éjection des tronçons coupés, lesdits organes étant constitués par des ailettes solidaires d'un anneau déformable disposé sous la base des lames et dont l'axe coïncide avec l'axe de rotation du tambour ports-lames. Application de ce dispositif à la coupe de fils de verre.
Patent CA-1165785-A (CA)
Title: Flame proof operator and control gear for  commercial and industrial sliding door
Inventor: STEFANATOS PETER G
IPC: E05F15/40
Filed: 1981-06-04
Granted: 1984-04-17
Abstract: ABSTRACT OF THE DISCLOSURE         An industrial door operator for activation of upward acting or horizontally sliding doors or gates is disclosed,  The door operator is made with a single waterproof or explosion proof control box thus allowing standard limit switches, contactors etc. to be employed.  The door operator has an electric motor mounted on a frame, the motor driving a sprocket connected to an output shaft for operating the door, the improvement comprising a single weatherproof or explosion proof control box containing motor control contactors, limit switch, and a safety interlock switch adapted to disconnect power to the electric motor and allow manual operation of the door.
Patent CA-1177289-A (CA)
Inventor: NIEHAUS NORBERT
IPC: C22C38/00
Filed: 1981-06-24
Granted: 1984-11-06
Abstract: HIGH-ALLOYED STEEL BEING RESISTIVE                 TO CORROSION BY NATURAL GAS      ABSTRACT OF THE DISCLOSURE         Steel is to be austenitic-ferritic at a 1:1 ratio of austenite to ferrite and contains particular alloy elements.         A  principal feature is limiting the sulphur content to below 0.005% in order to obtain a particularly high tough-ness transversely to the main direction of working.
Patent CA-1167762-A (CA)
Inventor: HOERGER CARL R
IPC: E21B33/035
Filed: 1981-07-08
Granted: 1984-05-22
Abstract: ABSTRACT An improved method for transmitting fluid pressure signals through a conduit is disclosed wherein time delay is minimized. In the practice of this inventin, a pressure pulse is applied to a conduit for a predetermined time interval and thereafter reduced to a maintenance level. The invention is particularly useful in sequentially controlling subsea oil well valves from a remote surface station.
Patent CA-1175213-A (CA)
Inventor: IMAI HIDEO
IPC: B29D99/00
Filed: 1981-07-17
Granted: 1984-10-02
Abstract: ABSTRACT OF THE DISCLOSURE         An apparatus is provided for rotating the terminal blade for a structure which comprises a pair of terminal blades attached to a wire cord. The apparatus comprises a support for supporting the terminal blades, the support including a recess having contact surfaces wherein the terminal blades contact the recess on the contact surfaces thereof. At least one blade rotating device is provided which has a projection extending therefrom. A drive moves the recess and the blade rotating device towards each other such that the projection is moved between the terminal blades and contacts one edge of each of the terminal blades. The opposing edges of the terminal blades contact the contact surfaces of the recess, thereby causing each terminal blade to rotate between the projection and the recess such that the pair of terminal blades are aligned and positioned in parallel planes. The apparatus further includes at least one wire cord holding device spaced from the blade rotating device for engaging the wire cord and holding the wire cord.
Patent CA-1203049-A (CA)
Inventor: KIM CHAN J
IPC: C08K3/22
Filed: 1981-08-10
Granted: 1986-04-08
Abstract: ZINC PEROXIDE PROCESS Abstract of the Disclosure A process is provided for the production of a mixture of butadiene-acrylonitrile polymer and zinc peroxide which comprises (i) reacting an agitated aqueous mixture of French Process zinc oxide, sulphuric acid and hydrogen peroxide to form an aqueous slurry of a mixture of zinc peroxide and zinc oxide, and (ii) mixing with said slurry a latex of a butadiene-acrylonitrile polymer, followed by coagulating the mixture and recovering and drying the product.
Patent CA-1167380-A (CA)
Inventor: HARVEY KENNETH
IPC: A61K8/34
Filed: 1981-08-18
Granted: 1984-05-15
Abstract: ABSTRACT OF THE DISCLOSURE           A dental composition comprising an aqueous liquid carrier comprising sorbitol and a gelling agent composition consisting essentially of xanthan and guar gums in specified ratios whereby a dentifrice having improved theological characteristics such as viscosity flow rate, extrusion, ribbon, shape retention and tube filling ability is obtained.
Patent CA-1165510-A (CA)
Inventor: GRATZFELD EVERHARD
IPC: C01G49/00
Filed: 1981-10-09
Granted: 1984-04-17
Abstract: ABSTRACT OF THE DISCLOSURE           An iron blue pigment ("DIN 55 906") is prepared by pre-cipitating white paste and then oxidizing the white paste.  Alkali metal ions such as sodium  ions and potassium ions, cyanide or hexacyanoferrate(II) ions, and iron(II) ions are used as starting materials.  The iron blue pigment of the invention contains potassium in an amount between 0.5 and 4.5% preferably between 0.5 and 2.0% by weight, sodium in an amount between 0.1 and 1.0% by weight, ammonium in an amount from 2.0 to 4.5% by weight, pro-ferably between 3.0 and 4.5% by weight, has a tinting strength, when tested in accordance with "DIN 52 204" and "DIN 53 234" exceeding the tinting strength of "Vossenblau 705" the German colour standard for iron blue pigments by between 5 and 15%, and has colour differences (determined in accordance with "DIN 53 204" and "DIN 53 234" in combination with "DIN 6174" with "Vossenblau 705" as standard) which are:          .DELTA.L : - 0.7 to -1.5 .DELTA.a : - 0.5 to  1.5 .DELTA.b : - 0.6 to -2.3 .DELTA.C :   0.5 to  2.0 To save potassium ions in the preparation of iron blue pigments, of the invention, the precipitation of white paste is done in two stages.  The alkali metal ions which are used in the pre-cipitation of white paste are:  potassium ions in the first stage and sodium ions in the second stage.  The soluble byproducts of the reaction are then removed, ammonium salts are added, and the white paste obtained in this manner is aged and oxidised thereafter in a conventional manner and recovered as an iron blue pigment.          The iron blue pigment can be utilised as pigment in the preparation of printing inks, paints and enamels, and as a colourant in fungi-cides.
Patent CA-1166229-A (CA)
Inventor: CLUSENER GERHARD
IPC: F16M13/00
Filed: 1981-11-03
Granted: 1984-04-24
Abstract: (h) Abstract of the Disclosure An improved stand is described for supporting the scientific instrument and accessories, such as a dilatometer and electric furnace, comprising a box base and an upright inverted U or box frame.  Means also are described for varying the point of attach-ment and angle of the upright frame to the base.  The upright frame may be equipped with the variety of instruments support brackets, including telescoping slides, which are extendable beyond the frame and which permit the frame to be used alone in a horizontal position or attached to the base in an upright position.
Patent CA-1212302-A (CA)
Inventor: CHEUNG PETER P L
IPC: A61K6/00
Filed: 1981-11-05
Granted: 1986-10-07
Abstract: Abstract of the Invention The method of etching a porcelain dental appliance insi-tu including the steps of contacting the porcelain with a buffered solution containing trace amounts of hydrogen fluoride and removing the solution after sufficient time has elapsed to allow the porcelain to be etched.  Preferred so lutions are buffered at a pH from about 2.0 to about 6.0 and most preferably from about 3.5 to about 4.5  Contact time of the solution with porcelain ranges from about five minutes to from about five to about thirty minutes or longer.    The solution preferably contains an alkali metal fluo-ride dissolved in a weak acid.  In a preferred embodiment, the solution contains about one to about three parts by weight of sodium fluoride dissolved in about 50 parts to about 150 parts by weight of dilute weak acid.  The weak acid has a molarity of from about 0.05 molar to about 0.5 molar.          The weak acid solution is buffered, if necessary, and has a pH of from about 2.0 to about 6.0 and preferably from about 3.5 to about 4.5.  A gelling agent may be added to gel the solution to permit more effective contact of the solution against with the porcelain being treated.
Patent CA-1167759-A (CA)
Inventor: RICHARDSON EDWIN A
IPC: E21B36/00
Filed: 1981-11-13
Granted: 1984-05-22
Abstract: Abstract of the Invention A portion of a subterranean oil and gas containing reservoir is concurrently chemically heated and selectively increased in its effective permeability to oil by injecting a solution of compounds containing ammonium ions and nitrite ions, which react exothermically to generate gaseous nitrogen, and a reaction-rate-controlling buffer.  The reactant concentration and the rate at which the solution is injected are arranged to provide a selected temperature increase within a selected portion of the reservoir.