baber/WOPTO huggingface dataset:
Patent CA-1080206-A (CA)
Inventor: REKERS LOUIS J
IPC: C08F4/60
Filed: 1976-02-24
Granted: 1980-06-24
Abstract: ABSTRACT OF THE DISCLOSURE      Olefin polymerization catalysts are prepared by depositing a chromium compound and an aluminum compound on an inorganic support material and heating the support material in a non-reducing atmosphere at a temperature above about 300° up to the decomposition temperature of the support material.  The supported chromium and aluminum compound is then combined with a metallic and/or non-metallic reducing agent, to provide a catalyst system useful in the polymerization of 1-olefins.
Patent CA-1053508-A (CA)
Inventor: GERLACH CHARLES R
IPC: F01C21/08
Filed: 1976-03-09
Granted: 1979-05-01
Abstract: ABSTRACT In a fluid power converter, such as a hydraulic pump or motor, having a rotor and stator with vanes in both the rotor and stator, the improvement in the vanes which are generally rectangular in cross section in which the outer edges of the vanes have a convex curvature of an extent to prevent the sides of the vanes of the rotor and stator from locking on one another upon rotation.  However, the curvature is limited to avoid undesirable detenting as the rotor vanes cross the stator vanes.  In addition, the maximum slope of the convex curvature is equal to or exceeds the maximum slope of the peripheral surface on the rotor or stator with which the vanes coact to prevent having sharp corners on the vanes which would engage the stator and rotor peripheries and produce rapid wearing of the vanes as well as the peripheries of the stator and rotor which they contact The radial extent of the convex shape of the stator vanes plus the radial extent of the convex shape of the rotor vanes is provided for being at least equal to the minimum radial clearance between the rotor and stator thereby preventing the rotor and stator vanes from catching on each other during rotation. In addition, the radial extent of the convex shape of the stator vanes plus the radial extent of the convex shape of the rotor vanes is not greater than twice the minimum radial clear?? e between to rotor and stator thereby preventing undesired detenting between the rotor and stator vanes during rotation.
Patent CA-1055186-A (CA)
Title: Method of modifying the physical properties of urethane elastomers
Inventor: COLQUHOUN JOSEPH A
IPC: G01C9/36
Filed: 1976-03-18
Granted: 1979-05-22
Abstract: ABSTRACT OF THE DISCLOSURE         A method of modifying the physical properties of urethane elastomers so that the properties of the urethane are enhanced.          The method involves reacting a specific siloxane-polyoxyalkylene into a urethane elastomer.
Patent CA-1058635-A (CA)
Inventor: BERTRAM HEIDRUN
IPC: C07C229/26
Filed: 1976-06-02
Granted: 1979-07-17
Abstract: ABSTRACT OF THE DISCLOSE          The invention provides a process for preparing at least one of the calcium salts of N-monohydroxymethyl-lysine and N-bishydroxymethyl-lysine, comprising reacting lysine with formaldehyde in the presence of water and calcium ions and at a pH of at least 8.
Patent CA-1083266-A (CA)
Inventor: HOSOKI SHIGEYUKI
IPC: H01J9/12
Filed: 1976-06-25
Granted: 1980-08-05
Abstract: Abstract of the Disclosure The invention is a field emission cathode comprising a cathode base composed of carbon or a high-melting-point metal and a needle-shaped cathode composed of glassy carbon. The cathode can provide a stable high field emission even in a high vacuum.  The invention includes a method for the prepara-tion of such field emission cathodes.
Patent CA-1087375-A (CA)
Inventor: KAPOLYI LASZLO
IPC: C01F7/18
Filed: 1976-07-22
Granted: 1980-10-14
Abstract: ABSTRACT OF THE DISCLOSURE       The present invention provides a process for producing of high-purity alumina and hydraulic cement from low-grade aluminium carriers by means of extraction of a disintegrating product obtained as a result of the phase conversion of dicalcium silicate, characterized by homogenizing the starting mixture expediently pulverized in common together with limestone, heating to a temperature of 700 to 900°C in direct and/or counter-flow heat exchange in a heat exchanger system, then keeping in a rotary kiln at sintering temperature for 5 to 10 minutes and finally, converting into alumina and hydraulic cement in a known manner.
Patent CA-1049585-A (CA)
Inventor: TASHIRO TEIZABURO
IPC: F16L33/00
Filed: 1976-08-10
Granted: 1979-02-27
Abstract: ABSTRACT OF THE DISCLOSURE         A rubber hose connector having an inner tube inserted into and projecting beyond the end of the hose, a first flange projecting radially outwardly from the inner tube to limit its insertion in the hose, an outer tube fitting slipped over the first flange and crimped onto the end of the hose and a second flange extending radially inwardly from the outer tube and abutting the side of the first flange remote from the hose to prevent removal of the hose.
Patent CA-1080750-A (CA)
Title: Process for the preparation of 4,4'-dihydroxy-3,3',5,5'-tetraalkyl-diphenylalkanes
Inventor: HEUSER JUERGEN
IPC: C07B61/00
Filed: 1976-08-18
Granted: 1980-07-01
Abstract: Process  for the preparation of 4,4'-dihydroxy-3,3',5,5'-tetraalkyl-diphenylalkanes Abstract of the Disclosure A process for the preparation of a 4,4'-dihydroxy-3,3',5,5'-tetraalkyl-diphenylalkane by reacting a 2,6-dialkyl phenol with a ketone in the presence of an acid   organic ion exchanger wherein said acid   ion exchanger is a macroporous resin with an average pore diameter of at least 300 .ANG..
Patent CA-1077278-A (CA)
Inventor: MACKAY PATRICK W
IPC: C21B13/04
Filed: 1976-09-15
Granted: 1980-05-13
Abstract: ABSTRACT OF THE DISCLOSURE         An improvement in a method for the batchwise gaseous re-duction of iron ore to sponge iron in a multiple unit reactor system including a cooling reactor and at least one reduction re-actor.  Reduction is effected with a gas composed largely of carbon monoxide and hydrogen which may be, for example, generated by re-forming a mixture of steam and natural gas or other gaseous hydro-carbons at an elevated temperature   The reducing gas requirement of the system is decreased by adding to the gas fed to one or more of the reduction reactors a minor amount of a hydrocarbon gas or vapor, e.g., natural gas, methane or a combination of methane and recycled spent reducing gas.
Patent CA-1086969-A (CA)
Inventor: KANEKO NOBORU
IPC: G04G15/00
Filed: 1976-10-12
Granted: 1980-10-07
Abstract: ABSTRACT An electronic timepiece having a time alarm.  The timepiece includes a time counter circuit for developing a progressively increasing count re-presentative of time.  A single alarm counter and a repeat alarm counter both store respective counts representative of respective times.  The single alarm counter is responsive to a reset signal for clearing the count stored therein. A coincidence detecting circuit compares the respective counts stored in the single and repeat alarm counter circuits with the count developed by the time counting circuit, and develops an output signal when the compared counts coincide.  An alarm responds to this output signal to indicate when the time represented by the compared counts coincide.  A gate circuit is effective for alternately applying the respective counts stored in the alarm counter circuits to the coincidence detecting circuit to alternately compare the count developed by the time counter circuit with the respective counts stored in the alarm counter circuits.  The gate circuit applies the coincidence detecting circuit output signal as a reset signal to reset the single alarm counter circuit when the count developed by the time counting circuit coin-cides with the count stored in the single alarm counter circuit.
Patent CA-1072659-A (CA)
Inventor: RIGDEN PAUL
IPC: H04Q3/00
Filed: 1977-01-19
Granted: 1980-02-26
Abstract: ABSTRACT OF THE DISCLOSURE     Modular electronic trunk selectors are known which have a number of incoming trunk modules and a common control module. Incoming trunks are connected to outgoing trunks by the common control module. The invention disclosed is a trunk selector of this type but it includes automatic test-ing and fault location. Periodic tests are randomly made of incoming trunks to see if correct signals are present on certain leads between the incoming trunk module and the common control module. Checks also made for continui-ty and open circuit conditions on the switching paths at appropriate times.          Tests are also made when regular calls are being set up. Detection of a fault initiates a "loop-back" in the common control module to see if the fault is in the incoming trunk module or the common control module and an appropriate alarm is activated.
Patent CA-1088839-A (CA)
Inventor: GAULT TERRELL W
IPC: C11D3/06
Filed: 1977-01-28
Granted: 1980-11-04
Abstract: PROCESS FOR PREPARING DETERGENT COMPOSITIONS           Terrell Wilson Gault ABSTRACT OF THE DISCLOSURE      A granular detergent composition for use in automatic dishwashing machines is prepared by forming a dry mix of an alkali metal condensed phosphate and an anhydrous alkali metal silicate of small particle size and agglomerating the dry mix with a silicate solution.  Conventional surfactants can be included in the composition.  The process is particularly suited to the preparation of automatic dishwashing machine detergents having relatively low levels of phosphate builders.
Patent CA-1103034-A (CA)
Title: Procede de recuperation du molybdene a partir de dechets
Inventor: CASTAGNA HERMAN
IPC: C01G39/00
Filed: 1977-02-01
Granted: 1981-06-16
Abstract: L'invention concerne un procédé de traitement de catalyseurs usés à base d'alumine activée contenant un ou plusieurs composés de molybdène, et en général, un ou plusieurs autres composés métalliques, en vue de récupérer le molybdène sous forme de composé substantiellement exempt d'aluminium.  Ce procédé comprend les étapes suivantes:  on élimine tout d'abord si nécessaire le carbone, les hydrocarbures et une partie du soufre contenus dans ces catalyseurs usés, on traite ensuite ces catalyseurs par du carbonate de soude à une température comprise entre 600 et 800.degree.C, on les lave à l'eau, on additionne ensuite à la solution alcaline ainsi obtenue une quantité d'acide nitrique comprise entre 1,5 et 2,5 fois celle qui serait nécessaire pour atteindre un pH comprisentre 5 et 6, tout en maintenant la température au-dessous de 30.degree.C et on hydrolyse la solution ainsi acidifiée à température voisine de l'ébullition, l'hydrate de Mo ainsi précipité étant ensuite rincé et séché.
Patent CA-1101489-A (CA)
Inventor: BENTLEY STANLEY L
IPC: B05D1/04
Filed: 1977-03-17
Granted: 1981-05-19
Abstract: ABSTRACT OF THE DISCLOSURE          A system for electrostatic deposition of a coating on an article from a charging device includes a direct current high voltage supply having first and second terminals across which the high voltage is impressed   The article to De coated is held at a potential substantially equal to the potential on one of the high volt go terminals. The article is suspended for relatively free movement toward and away from the device The system includes a high-speed switch coupled between the high voltage terminals and a control circuit for controlling the switch   A sensing resistor in the high voltage output cir-cuit monitors the current between the high voltage terminals The control circuit includes a slope-detecting or fixed differ-ence  circuit responsive to the sensed current to detect too-rapid changes therein, such changes being indicative of close proximity of the article to the charging device and the possi-bility of high voltage arcing therebetween   The fixed differ-ence  circuit compares a sampled signal, related to the sensed current by a fixed difference, with a signal related to the instantaneous value of the sensed current to predict a condi-tion conducive to high voltage arcing   The control circuit additionally includes an automatic ranging circuit for com-paring a sampled signal related to the actual current through the sensing resistor with a signal related to a predetermined multiple of the instantaneous current through the sensing resistor.
Patent CA-1083413-A (CA)
Inventor: VAN KEMPEN DICK
IPC: B41J9/48
Filed: 1977-03-29
Granted: 1980-08-12
Abstract: ABSTRACT:          A printing device in which a roll on which the characters to be printed are provided is displaceable along at least one printing hammer which supports a coil which, when excited, generates a field which, by oooperation with a stationary field, puts the hammer into motion and drives it against the character to be printed, the hammer being arranged to be movable in the device so that the distance between the hammer and the roll is adjustable, a control device being provided which measures the hammer flying time and compares this time with a nominal flying time and which, in the case of a difference, displaces the hammer relative to the roll and also changes the driving force of the hammer.
Patent CA-1079163-A (CA)
Inventor: MAUCIONE CARL M
IPC: C21D8/12
Filed: 1977-04-01
Granted: 1980-06-10
Abstract: METHOD OF PRODUCING SILICON-IRON SHEET MATERIAL       WITH BORON ADDITION, AND PRODUCT     Abstract of the Disclosure By adding a relatively small amount of boron to the electrolytically-deposited Mg(OH)2 coating on silicon-iron magnetic sheet containing a small but critical amount of boron, a substantial improvement in permeability of the finally-annealed product sheet material can be obtained.
Patent CA-1073647-A (CA)
Title: Cleaning device for the scraper blades associated with rotating separation and/or clearing rollers for a textile fibre web in spinning machines
Inventor: MARZOLI ANGELO
IPC: D01G15/34
Filed: 1977-04-12
Granted: 1980-03-18
Abstract: ABSTRACT OF THE DISCLOSURE        A cleaning device is disclosed for the scraper blades of a clearing roller in a spinning machine such as a card, the improvement consisting in that there is a cleaning element for each of such blades, the cleaning element resting on such blade, control means being also provided for impressing a reciprocation to said cleaning elements in sliding contact with the blades, suction means being provided in front of the roller and blade ends.
Patent CA-1081307-A (CA)
Title: Electric device provided with a switch which is designed as a discharge tube
Inventor: KUUS GIJSBERT
IPC: H01J17/22
Filed: 1977-05-04
Granted: 1980-07-08
Abstract: ABSTRACT:           The invention relates to an electric device pro-vided with a switch which is constructed as a discharge tube which comprises at least two main electrodes and a reversible hydrogen getter.  According to the invention the discharge tube contains a rare gas so that the current flow in the conducting state of the switch is mainly ensured by that rare gas.  The non-conducting stage of the switch can be obtained by heating the getter.  Namely, the hydrogen pressure in the discharge tube then becomes so high that the discharge in the tube is extinguished.  Heat-ing of the getter is preferably effected by  the heat developed by the current between the main electrodes.  This results in a self-extinguishing breakdown element.
Patent CA-1061141-A (CA)
Inventor: SMITH KENNETH E
IPC: A01F15/08
Filed: 1977-06-24
Granted: 1979-08-28
Abstract: S P E C I F I C A T I O N AN IMPROVED TONGUE MOUNTED ASSEMBLY FOR SUPPORTING AN IMPLEMENT DRIVELINE                     ABSTRACT OF THE DISCLOSURE      An improved assembly is mounted on a tongue of a draft implement which supports an input driveline of the implement for operative drive connection with a power takeoff drive shaft of a tractor which tows the implement through an articulate connection with the implement tongue.  The improved assembly includes a lower toothed annular jaw part fixedly mounted on a support memner on the tonque, an upper toothed annular jaw part and a shaft extending generally vertically through the lower and upper jaw parts and journalling the upper jaw part for rotation relative to the lower jaw part about an upright axis and for concurrent axial sliding movement toward and away from an intermeshed relationship with the lower jaw apart.  The assembly further includes a generally horizontal arm which is rigidly connected to the upper jaw part for movement therewith and is interconnected to and supports the driveline, and a spring which urges the shaft downwardly so as to dispose the upper jaw part in theintermeshed relationship with the lower jaw part such that the arm thereby disposes the driveline in a longitudinal position.  The spring is yieldable to allow the upper jaw part to concurrently rotate relative to, and axially slide away from the intermeshed relationship with, the lower jaw part such that the arm will pivot laterally and allow lateral movement of the driveline therewith to accommodate sharp turns of the tractor relative to the implement.
Patent CA-1102949-A (CA)
Title: Flame-retardant isocyanate-based foams and method of producing the same
Inventor: UCHIDA SHINZI
IPC: C08K5/17
Filed: 1977-07-18
Granted: 1981-06-09
Abstract: ABSTRACT OF THE DISCLOSURE:           Certain organic amine-metal complexes are utilized as flame-retardant for isocyantate-based foams.
Patent CA-1080439-A (CA)
Inventor: YAMADA KOICHI
IPC: C01F7/062
Filed: 1977-08-05
Granted: 1980-07-01
Abstract: PROCESS FOR EXTRACTING ALUMINA  FROM ALUMINA-CONTAINING ORES     ABSTRACT OF THE DISCLOSURE          In a process for extracting alumina from alumina-containing ores on a two-stream system by individually preheating a slurry of alumina-containing ores and an aqueous alkali solution each in preheaters of indirectly heating, mixing the preheated slurry with the preheated aqueous alkali solution, and extracting alumina from the ores in a digester of heating type of direct injection of live steam or heat-insulated type, the alumina is extracted from the ores by preparing the slurry of alumina-containing ores with water or a diluted aqueous alkali solution, particularly drain obtained by recovering steam from an evaporator for cooling slurry resulting from extraction, and utilizing the recovered steam in preheating the slurry of alumina-containing ores or decomposition solution or both, preheating the slurry of alumina-containing ores, and mixing the preheated slurry with an aqueous alkali solution pre-heated as another stream as the decomposition solution. Scale formation can be prevented completely or substantial-ly on an inside surface of the preheater for the slurry of alumina-containing ores.
Patent CA-1069483-A (CA)
Inventor: MINEZAKI HISAO
IPC: B65H67/048
Filed: 1977-09-15
Granted: 1980-01-08
Abstract: ABSTRACT OF THE DISCLOSURE             A water jet from a nozzle is laterally directed against a glass fiber strand bridge formed  between a loaded spool and an empty spool as a turntable rotatably mounting the two spools is indexed 180° to reverse the positions of the spools between standby and winding stations.  The jet is synchronized with the turntable rotation, and cleanly severs the strand so that winding may continue on the empty spool while the loaded spool is removed and replaced with a new empty spool.
Patent CA-1076761-A (CA)
Inventor: MCDOWELL DAVID E
IPC: A46B9/02
Filed: 1977-10-11
Granted: 1980-05-06
Abstract: VACUUM CLEANER WITH IMPROVED BRUSH     Abstract of the Disclosure A vacuum cleaner is provided with a suction nozzle and a cylindrical rotary brush.  The brush includes a plurality of generally longitudinally extending rows of uniform bristle tufts.  Alternate tufts in alternate rows are spaced at about twice the distance as the remaining more closely spaced tufts and prepare the carpet for sweeping by the latter.
Patent CA-1089539-A (CA)
Inventor: EICHENLAUB DENNIS P
IPC: G01T1/17
Filed: 1977-10-24
Granted: 1980-11-11
Abstract: ABSTRACT OF THE DISCLOSURE A series arrangement of a plurality of divide by N circuits, where N is a predetermined number of events, develops an output signal in response to the occurrence of each integer power of N events.  A logic circuit increments a counter in response to each output signal and the contents of the counter provide an indication of the integer power of N events.
Patent CA-1075488-A (CA)
Inventor: KREIKEBAUM GERHARD
IPC: G01N15/02
Filed: 1977-11-23
Granted: 1980-04-15
Abstract: ABSTRACT OF THE DISCLOSURE     A system and method provides in situ measurements of the size of particulate matters suspended in fluid medium. beam of intermittently interrupted electromagnetic radiation is directed through a portion of the fluid medium and radiation backscattered from a first optically defined region disposed within the fluid medium at a location having substantially uniform incident illumination is detected and utilized to provide an indication of the size and distribution of the suspended particles.  To assist in assuring particles under surveillance are within the first region at the time the measurements are made, light backscattered from a further region disposed in the fluid medium and containing the first region is collected and compared with the intensity of the radiation backscattered from the first region prior to making the measurements.
Patent CA-1106893-A (CA)
Inventor: ARNOLD NIKLAUS
IPC: H01R39/14
Filed: 1977-11-29
Granted: 1981-08-11
Abstract: Abstract of the Disclosure A commutator for electrical machines and a method of manufacture of the commutator is disclosed which consists of a lamination assembly held together by a pair of shrink-rings, One of the rings serves to support the commutator on a commuta-tor hub and comprises first and second ring portions having between them a decoupling portion. The first ring portion is in the form of a shrink-ring and holds together the lamination assembly. The second ring portion is secured to the commutator hub. The other shrink-ring also holds together the lamination assembly. In the method of manufacture of the commutator, both the first and second ring portions are simultaneously shrunk on to the lamination assembly and commutator hub respectively.
Patent CA-1080818-A (CA)
Inventor: PETERSON SVEN T
IPC: H05K3/34
Filed: 1977-12-16
Granted: 1980-07-01
Abstract: Abstract of Disclosure:     A clamp for support and electrical connection of two adja-cently positioned circuit cards consists of a sheet of electric conducting material and a first and a second piece of insulating material. The sheet has a middle uniform portion and two tapered legs at its ends. The two pieces are formed by extrusion on each side of the middle portion of the sheet and the width of one piece along the middle portion is pre-ferably equal to the distance between the cards. When con-necting the cards, the legs are bent perpendicular to the middle portion and their ends are joined to the cards by soldering.
Patent CA-1097126-A (CA)
Inventor: HAWES RICHARD J
IPC: A01B3/421
Filed: 1978-01-04
Granted: 1981-03-10
Abstract: ABSTRACT OF THE DISCLOSURE           A reversible plough comprising a headstock adapted for connection to a tractor and having bearing means providing a reversing axis; a reversing spindle rotatably mounted in the bearing means along the axis; a plough frame secured to the reversing spindle for rotation therewith and for supporting left and right handed plough bodies; a hydraulic ram for rotating the reversing spindle to effect reversal of the plough frame; a stop member rotatable about the reversing spindle and having a pair of stops corresponding to right and left handed ploughing positions of the frame respectively and being adjustable in position relative to the member to enable pre-setting of the ploughing positions relatively to the headstock and an abutment fixed to the reversing spindle to rotate there-with whereby, upon rotation of the reversing spindle by the ram to effect reversal of the plough frame from one to the other of the ploughing positions, the abutment engages the member, the member thereafter rotating with the reversing spindle until the stop corresponding with the other ploughing position engages the headstock to prevent further rotation of the plough frame and to locate the plough frame in the other ploughing position as pre-set.