baber/WOPTO huggingface dataset:
Patent CA-1092575-A (CA)
Inventor: RICE HERBERT L
IPC: C01B25/22
Filed: 1977-02-01
Granted: 1980-12-30
Abstract: Abstract of the Disclosure:  In a method of treat-?-containing phosphate rock comprising at least mining the phosphate rock,  reducing the phosphate rock to a pre-determined size range, adding water to the phosphate rock, and storing the admixture containing at least the phosphate rock and water; the improvement characterized by adding to the admixture an amount effective to control problems asso-ciated with the swelling of residual clays of a chemical treatment selected from the class consisting of aliphatic hydroxy acids containing 2-6 carbon atoms, inclusive, of which citric acid and tartaric acid are members; the aliphatic hydroxy acid salts, and effective blends of the aliphatic hydroxy acid salts with a strong caustic, or base.  The chemical treatment prevents a build up of viscosity such that the admixture remains pumpable even with a concentration of solids in excess of 66 percent by weight.  Moreover, in phosphoric acid production, the quality of the calcium sulfate crystals is improved such that they are more readily removable by filtering.  An effective amount of chemical treatment, preferably, is, for example, one pound per ton of phosphate rock and no more than about six pounds per ton (0.05-0.3 percent by weight).
Patent CA-1083276-A (CA)
Inventor: KERR ANDREW G
IPC: B66D1/52
Filed: 1977-02-25
Granted: 1980-08-05
Abstract: A B S T R A C T             For a crane, carried by one of two stations movable relative to each other in a vertical plane, and adapted to permit a hook assembly when attached to a load on the other station to follow relative motion prior to lifting of the load, a lift-off indicator measures either the relative velocity or relative vertical accelerations of the two stations and from signals representing relative velocity of approach showing values between a maximum positive and negative, and relative acceleration acting away from the direction of approach indicates conditions suitable for initiating lifting.
Patent CA-1080371-A (CA)
Inventor: PETERSILKA ERNST
IPC: G21K5/04
Filed: 1977-03-16
Granted: 1980-06-24
Abstract: ABSTRACT OF THE DISCLOSURE   In the illustrated embodiments, an irradiation apparatus for medical purposes has diaphragm plates with a maximum rectangular aperture defining maximum beam angles (.alpha.) in respective orthogonal planes.  The shielding material surrounding an axially elongated radioisotope is shaped in conformity with the angles (.alpha.) so as to provide low absorption acute angle paths from the entire (cylindrical) periphery of the radioisotope, such that the falloff in intensity of the radiation at right angles to the central ray is minimized over the entire cross section of the diaphragm aperture,  To minimize the ex-tent of the penumbral region, the radioisotope may be frusto-conical with a slope angle .beta. not greater than about .alpha./2.  The shielding material within a cylindrical source - housing preferably closely encircles the remote end of the radioisotope unit to securely position the same, while various low absorp-tion arrangements serve to securely retain the frontal end.
Patent CA-1086399-A (CA)
Inventor: GIROUX GUY
IPC: G08B13/194
Filed: 1977-04-28
Granted: 1980-09-23
Abstract: ABSTRACT OF THE DISCLOSURE The invention relates to apparatus for detection of variations in the radiation pattern from a defined space.  The apparatus may serve as an intrusion detector and alarm, which senses the presence of an intruder by monitoring light intensity variations in the field of scan.  Or it may serve as a fire detector by sensing infrared radiation.  One embodiment comprises a rotating mirror, radiation detector, analog-digital converter for deriving a series of digital values for the scanning positions of a complete scan, a memory for storing the digital values for at least one complete scan, and a comparator for comparing incoming digital values with stored digital values for the set of scanning positions.  The comparator determines if the incoming value differs from the stored value by more than a predetermined amount.  If it does an alarm is actuated and the stored value is retained in the memory. If it does not, the incoming value is stored in the memory and the alarm is not actuated.  Scanning may also be effected by a single line electronic scan-ning device without any mechanical movement.
Patent CA-1107756-A (CA)
Title: Preparation of alkyl mercaptocarboxylate/dialkyl thiodicarboxylate mixture using sulfur and/or water cocatalyst
Inventor: LOUTHAN RECTOR P
IPC: C08G63/688
Filed: 1977-06-01
Granted: 1981-08-25
Abstract: Abstract of the Disclosure ~ n olefinically unsaturated alkyl carboxylate is reacted with hydro-gen sulfide in the presence of a lower alkanol using an addition catalyst with water and/or sulfur cocatalyst to give an alkyl mercaptocarboxylate/-dialkyl thiodicaboxylate mixture having a high proportion of the mercapto-carboxylate. If sulfur is contained in the cocatalyst, dialkyl dithiodi-carboxylates are also formed The resulting mixture on transesterification with a poly(oxyalkylene)-polyol gives a poly(oxyalkylene)-polyester-poly(mono-sulfide)-polythiol or a poly(oxyalkylene)-polyester-poly(monosulfide)-poly(disulfide)-polythiol having a good balance of properties.
Patent CA-1100263-A (CA)
Inventor: BURRILL PETER M
IPC: D06M101/00
Filed: 1977-06-13
Granted: 1981-05-05
Abstract: Abstract of the  Disclosure.        Process for the treatment of cellulosic or synthetic fibres, or blends of these, to impart resilience and anti-pilling properties.  The process comprises applying to the fibres a composition, especially an aqueous emulsion, containing (A) a polydiorganosiloxane in which at least two silicon-bonded substituents contain at least two amino groups, (B) a siloxane having silicon-bonded hydrogen atoms and (C) a siloxane curing catalyst.
Patent CA-1073058-A (CA)
Inventor: SCOTT LARKIN B
IPC: G01K7/25
Filed: 1977-06-13
Granted: 1980-03-04
Abstract: LINEARIZED BRIDGE CIRCUITRY           ABSTRACT OF THE DISCLOSURE   Where the unknown leg of a bridge is a sensor which presents a resistance that relates to a parameter by a second order polynomial, a negative feedback circuit from the conventional null measurement terminals to a voltage divided point in the balance leg thereof is included to provide a substantially linear relationship between the parameter of the sensor and a ratio including two voltage levels from the feedback circuit.  A circuit means for continuously monitoring this ratio of voltages with a counter in recurring cycles for digital display is incorporated with the linearized bridge circuit of this invention in a particular embodiment thereof.
Patent CA-1069006-A (CA)
Title: Solar heating panel
Inventor: MCCURDY RONALD E
IPC: F24S80/50
Filed: 1977-07-04
Granted: 1980-01-01
Abstract: ABSTRACT OF THE DISCLOSURE         This invention relates to an improved solar heating panel for converting solar energy to thermal energy in a cir-culating fluid to be used for heating or other purposes.  A transparent plastic film is secured to a flat dark opaque sur-face to form a channel therebetween for the circulating fluid.          The transparent film which faces the sun is uneven shaped whereby some of the sun's rays which strike the solar panel are reflected to an adjacent portion of the panel.  For instance, the film may be shaped to form a series of interconnected domes or pyramids, or a number of interconnected semitubular portions.          The solar radiation which passes through the transparent film is received by the opaque surface where it is converted to thermal energy in the presence of the carrier fluid.  The resulting im-proved efficiency permits smaller solar collectors to be con-structed at a lesser cost, and also eliminates the need to attempt to have the solar panel move to face the sun at right angles as it constantly changes position.
Patent CA-1056124-A (CA)
Inventor: GEORGE HENRY H
IPC: E04B1/58
Filed: 1977-08-04
Granted: 1979-06-12
Abstract: A B S T R A C T        In a connector, as used to interconnect structural members in a trusswork, an elbow and a pipe, which may be another elbow, are provided with suitable slots receiving a plate, and the elbow, pipe, and plate are welded together.
Patent CA-1093872-A (CA)
Title: Barrette de connexion pour fibres optiques
Inventor: BEAUHAIRE PIERRE
IPC: G02B6/38
Filed: 1977-08-23
Granted: 1981-01-20
Abstract: Barrette de connexion entre fibres optiques caractérisée en ce qu'ellecomporte un support d'alignement cylindrique portant une rainure disposée selon l'une de ses génératrices pour recevoir les extrémités des fibres respectives, et une bague montée autour du support, fendue longitudinalement pour l'insertion des fibres et mobile en rotation pour leur maintien dans la rainure. Cette barrette permet la constitution d'une liaison de transmission d'informations par fibres optiques.
Patent CA-1093768-A (CA)
Inventor: ASAWA TATSURO
IPC: C25B1/46
Filed: 1977-11-10
Granted: 1981-01-20
Abstract: ABSTRACT OF THE DISCLOSURE          Electrochemical properties of a cation exchange mem-brane of a carboxylic acid type fluorinated polymer which is used in an electrolysis of an aqueous solution of an alkali metal chloride is recovered by converting ion exchange groups of -(COO)?M; wherein M represents an alkali metal or an alkaline earth metal; and m represents a valence of M; to the corresponding acid or ester groups of -COOR wherein R represents hydrogen or a C1 - C5 alkyl group and heat-treating the fluorinated polymer having the groups of -COOR.
Patent CA-1088105-A (CA)
Inventor: DWYER FRANCIS G
IPC: C07C67/00
Filed: 1977-11-22
Granted: 1980-10-21
Abstract: MANUFACTURE OF ETHYL BENZENE            ABSTRACT OF THE DISCLOSURE         Process for effecting ethylation of benzene which comprises contacting benzene, under conversion conditions, with an ethylene admixed at least an qui-molar amount of an inert hydrocarbon diluent in the presence of a catalyst comprising a crystalline aluminosilicate zeolite, which zeolite is characterized by a silica to alumina ratio of at least about 12 and a constraint index within the approxi-mate range of 1 to 12 to yield ethyl benzene.
Patent CA-1099048-A (CA)
Inventor: BUSCH WALTER
IPC: C08L3/04
Filed: 1977-12-22
Granted: 1981-04-07
Abstract: Abstract of the Disclosure This invention relates to a sheet-like structure of polyurethane, which is capable of absorbing water vapor and transmitting water vapor, with a uniformly incorporated additive composed of solid particles of at least one swellable, modified polymer. The invention also relates to a process for manufacturing the sheet-like structure.
Patent CA-1108093-A (CA)
Inventor: KOVALSKY GEORGY A
IPC: C23C14/42
Filed: 1978-01-10
Granted: 1981-09-01
Abstract: APPARATUS FOR ION PLASMA COATING          OF ARTICLES              Abstract of the Disclosure The proposed apparatus is used to apply thin films of metals, semiconductors and dielectric materials onto the surface of different articles.  The apparatus comprises a vacuum chamber accommodating a discharge chamber with at least a single slit in one of its walls.  An electric field produces a plasma flow between an anode and a hot cathode arranged in the discharge chamber so that the hot cathode is located opposite the slit of the discharge chamber.  A magnetic system produces a magnetic field extending through the hot cathode and slit perpendicular to the electric field between the anode and hot cathode.  A target and an article holder are arranged on opposite sides of the plasma flow leaving the slit.  As a negative potential is applied to the target, plasma ions sputter the material of the target, which is deposited on the article, producing a thin film on its surface.
Patent CA-1053630-A (CA)
Inventor: FRIESS HANS
IPC: B65B15/00
Filed: 1978-01-27
Granted: 1979-05-01
Abstract: Abstract of the Disclosure A cardboard blank is provided for making up into a gas-tight and liquid-tight box.  The blank has a lining of aluminum foil on its inside and a layer of heat sealable synthetic material covering the entire foil-covered surface of the blank.  Between the foil and this layer, in the seam areas, and preferably also in the corner areas, additional layers of heat sealable synthetic material are provided.  The provision of these additional layers in the areas of maximum stress (corners and seams) enables one to minimize the thick of overall layer.
Patent CA-1081459-A (CA)
Inventor: HAYES NORMAN J
IPC: A01K11/00
Filed: 1978-02-02
Granted: 1980-07-15
Abstract: Abstract of the Disclosure An animal identification tag assembly for mounting on the ear of an animal comprising a one-piece identification member adapted to be mounted on the upper outer surface of the animal ear in an upright outwardly extending position and a one-piece attachment member adapted to be mounted on the inner surface and extend through the animal ear into retaining locking engagement with the identification member, the identification member having an identification flange portion laterally offset to one side of a base portion with a reinforcement rib on the base portion having an attachment hole extending therethrough.
Patent CA-1091146-A (CA)
Title: Dispositif de positionnement et de raccordement automatique de deux blocs immerges
Inventor: MARQUAIRE ROGER
IPC: E21B33/035
Filed: 1978-03-17
Granted: 1980-12-09
Abstract: Dispositif de positionnement de raccordement de conduits d'un bloc porteur aux conduits d'un bloc fixe.  Le bloc porteur, à raccorder au bloc fixe, porte un cône de guidage solidaire d'un amortisseur relié à la tige de l'amortisseur primitivement sortie.  Après mise en contact de roulements sur le bloc fixe, on oriente le bloc porteur jusqu'a verrouillage en une position prédéterminée.  En actionnant le vérin de l'amortisseur, raccordé en surface, on descend complètement le bloc porteur sur le bloc fixe par rentrée de la tige.
Patent CA-1078368-A (CA)
Inventor: DENISON EARLY B
IPC: E21B31/08
Filed: 1978-03-29
Granted: 1980-05-27
Abstract: ABSTRACT A remotely operated connector for electrically and mechanically coupling a wireline to a connector located at the bottom of a drill string. The connector includes a spring-actuated jar that facilitates the release of the connector.
Patent CA-1087430-A (CA)
Inventor: KIRJAVAINEN ALVI
IPC: D21F1/00
Filed: 1978-04-10
Granted: 1980-10-14
Abstract: ABSTRACT OF THE DISCLOSURE:         An paper machine has a headbox provided with a slice through which a pulp suspension discharges from the headbox, this slice being defined in part by an upper lip frame.  The pulp suspension flows to the slice from a distribution header and a turbulence passage assembly which receives the pulp stock from the distribution header and continues the flow thereof toward the slice.          An air tank is provided for containing air under pressure to act on the flowing pulp stock so as to damp pressure fluctuations in the pulp suspension flow, and this air tank is connected in part to the upper lip frame of the slice so that the pressure in the air tank will act on the pulp suspension in the immediate vicinity of the slice.
Patent CA-1108814-A (CA)
Inventor: MOERTEL GEORGE B
IPC: B29C45/04
Filed: 1978-05-08
Granted: 1981-09-15
Abstract: PATENT APPLICATION            INVENTOR: GEORGE B. MOERTEL            TITLE:         CONTINUOUS INJECTION MOLDING     ABSTRACT OF THE DISCLOSURE        A continuous flexible metal band surrounding a molding wheel and rotating therewith engages the wheel through an arc less than 180°, e.g. 110°, and is maintained with a substantial inward radius of curvature throughout its entire length.  This permits the employment of bands with cavities therein and having thicknesses several times greater than 0.001 times the diameter of the molding wheel without fatigue and failure of the band.
Patent CA-1082001-A (CA)
Inventor: GENTILE PATRICK J
IPC: F16H57/023
Filed: 1978-05-23
Granted: 1980-07-22
Abstract: TITLE                  GEAR SUPPORT ASSEMBLY               ABSTRACT OF THE DISCLOSURE          Drive and driven shafts are rotatably supported in a wall portion of a press frame and have free end portions extending into a gear case.  A first drive gear is nonrotatably secured to the drive shaft and a second driven gear is non-rotatably secured to the driven shaft.  A T shaped member is pivotally connected to the wall and has an intermediate shaft member nonrotatably positioned in a slot for longi-tudinal movement therein.  The intermediate shaft has a free end portion extending into the gear case with inter-mediate gears rotatably mounted thereon.  The T-shaped member is arranged to be suitably adjusted to maintain different sized intermediate gears in meshing relation with different sized drive and driven gears 80 that the drive shaft imparts a preselected angular velocity to the driven shaft through the gear train.  A pair of support arms each have an aperture adjacent one end and an elongated longitudinally extending slot adjacent the other end.  Bearing members are mounted in the apertures and the ends of the drive and driven shafts are mounted in the bearings for rotation relative to the support arms.  The slotted portions of the support arms are positioned in overlying relation with the intermediate shaft end portion extending therethrough.  A nut secures the support arms in position on a threaded end portion of the intermediate shaft and thus the support arms connect the free ends of the three shafts to provide support for the end portions of the three shafts in the gear case and eliminate the torsional stress imparted to the shafts particularly the intermediate shaft.
Patent CA-1114521-A (CA)
Title: Avalanche diode structure with improved  efficiency and a diode using this  structure
Inventor: PEARSALL THOMAS P
IPC: H01L29/864
Filed: 1978-06-20
Granted: 1981-12-15
Abstract: Abstract of the disclosure In an avalanche diode of gallium arsenide, e.g. an IMPATT diode, the optimization of the coefficient of ionization by impact in the case of impacts initiated by holes when the electrical field propels the carriers along the axis 1 1 1 of the monocrystal, has been utilized.  The structure comprises a substrate of Ga-As with two large faces perpendicular to the axis 1 1 1 and layers obtained by epitaxial growth from one of these large faces.  Arrangements are made to ensure that the electrical field is as parallel as possible to this crys-talline axis.  The improvement in efficiency is of the order of 20 %.
Patent CA-1100847-A (CA)
Inventor: PETERSON HARLEY G
IPC: B01D46/42
Filed: 1978-06-23
Granted: 1981-05-12
Abstract: ABSTRACT         A damper valve and more particularly an improved damper valve including purge means for the prevention of leakage thereat.
Patent CA-1076951-A (CA)
Inventor: LAUCKE IVAN
IPC: B21D28/34
Filed: 1978-07-19
Granted: 1980-05-06
Abstract: ABSTRACT OF THE DISCLOSURE          A retainer arrangement is disclosed for securing punches, dies or similar machine tool elements within a bore in a tool holder body, the retainer providing for secure and accurately repeatable orientation of the punch or other element within the bore.  The retainer comprises a conically tapered pin retainer having a threaded shank portion adapted to be re-ceived into a threaded portion of a retainer seat extending into the holder body transversely to the holder bore and having a conically tapered portion partially intersecting the same. The leading end of the tapered pin retainer is tapered to mate with the tapering portion of the retainer seat and with a complemen-tary conical tapered groove formed in the punch shank, to secure-ly retain the punch or other machine element within the holder body, and also to precisely and repeatably orient the same with respect to the holder body bore in receiving the same.  The geometry of the mating retainer pin, groove and tapering portion of the retainer seat is such as to insure seating of the pin in the groove to provide firm engagement with the machine tool ele-ment.  Also disclosed is the alternate provision of opposed pairs of the tapered pin retainers for heavy duty applications or a single retainer for light duty applications.  In one embodi-ment, the axis of the retainer is inclined from the normal to the tool axis to facilitate removal thereof.  The punch shank is dis-closed as being formed with a series of ratchet cuts formed along the longitudinal length thereof to facilitate removal of the punch by means of a screw driver or similar tool, while the tool holder backing plates are formed with recesses for easy removal from the press arm members.
Patent CA-1117622-A (CA)
Inventor: WOOD DOUGLAS A
IPC: G05D7/06
Filed: 1978-08-10
Granted: 1982-02-02
Abstract: ABSTRACT     Apparatus for controlling the rate of flow of a powdered solid material such as flour, comprising a load cell supporting an inclined plate onto which the flour particles impinge after falling through an inclined gate valve.  The output of the load cell is red to a control circuit including a direct proportional control section and an integrated error section with a monitor circuit sensitive to excessive integrated errors.  The control circuit acts on an electric motor controlling the opening of the gate valve to maintain a predetermined rate of flow.
Patent CA-1109366-A (CA)
Inventor: STRATIENKO ANDREW
IPC: F16D1/095
Filed: 1978-08-18
Granted: 1981-09-22
Abstract: LOCKING DEVICE FOR HYDRAULIC ACTUATOR               ABSTRACT OF THE DISCLOSURE:      Disclosed is a mechanical locking device for locking a rod in a conventional hydraulic actuator, such as a hydraulic cylinder or a rotary actuator.          The device comprises a radially contrcactible locking ring having a cylindrical inner surface for gripping the rod when the locking ring is contracted and an outer surface which is axially inclined, means for positively securing the locking ring around the rod in a position axially fixed in at least one direction with respect to the actuator housing, a ring-contracting member around the locking ring and having an inner surface which is axially inclined at the same angle as the outer surface of the locking ring for engaging that surface, and means for applying an axial force to the ring-contracting member in the direction of the inner surface axial inclination to cause the ring-contracting member to slide axially on the locking ring thereby causing the locking ring to contract and grip the rod.
Patent CA-1114234-A (CA)
Title: Pleasure vehicle and a transportation system  utilizing the same
Inventor: WIEGAND JOSEF
IPC: B61D13/00
Filed: 1978-08-21
Granted: 1981-12-15
Abstract: PLEASURE VEHICLE AND A TRANSPORTATION SYSTEM                 UTILIZING THE SAME     Abstract of the Disclosure.           A pleasure vehicle which is to be used on a trough-shaped downhill track, includes a vehicle body and a leg support, extending frontwardly therefrom.  A plurality of support elements support the vehicle on the downhill track for movement down the track.  A plurality of brake shoes are mounted on the vehicle body, for simultaneous displacement by a single actuating lever into and out of braking positions, so that the support elements of the vehicle body are lifted off the downhill track, while the support elements of the leg support continue to guide the vehicle on the downhill track.
Patent CA-1095860-A (CA)
Title: Rotary type railway car coupler
Inventor: DEPENTI KENNETH L
IPC: B61G1/38
Filed: 1978-09-06
Granted: 1981-02-17
Abstract: IMPROVED ROTARY TYPE RAILWAY CAR COUPLER   Abstract of the Disclosure An improved rotary-type F Car Coupler.  The yoke of the coupler is provided with the side opening through which the pin for holding the shank of the coupler head to the yoke is removed. A plate is provided for covering the side opening and retaining the pin in position between the shank and yoke.  The retainer plate is rotated into interlocking engagement with the yoke, and a cotter pin and stop are provided for restricting rotation of the plate to maintain it in interlock relation with the yoke.