baber/WOPTO huggingface dataset:
Patent CA-1113059-A (CA)
Inventor: BUSCHBOM FLOYD E
IPC: F04C29/02
Filed: 1978-10-30
Granted: 1981-11-24
Abstract: LUBRICATING SYSTEM FOR PUMP AND CONTROL VALVE THEREFOR     ABSTRACT OF DISCLOSURE:    A vane air pump is used to selectively supply air under pressure to a tank or evacuate air from the tank.  A control valve mounted on the pump has a housing with an air inlet area and an air outlet area. A spool rotatable in the housing to a first position connects the pump and valve passages to supply air under pressure to the tank and a second position connects the pump and valve passages to evacuate air from the tank.  A lubricating apparatus having a reservoir for storing oil is connected to the air inlet area of the control valve to draw oil into the control valve and the pump to lubricate the spool of the control valve and bearings and vanes of the pump.          An adjustable metering valve controls the flow of oil into the control valve and pump.
Patent CA-1111785-A (CA)
Inventor: VAN GHELUWE GEORGE E A
IPC: B01D19/00
Filed: 1978-10-30
Granted: 1981-11-03
Abstract: ABSTRACT OF THE DISCLOSURE       Water is deaerated by the action of the vacuum pulled by the effect of gravity on a standing column of water.  The air released is removed by a vacuum pump.  The lower end of the column is immersed in deaerated water to form a seal to prevent loss of vacuum.
Patent CA-1111201-A (CA)
Inventor: FUGERE ALBERT L
IPC: A41D13/08
Filed: 1978-10-31
Granted: 1981-10-27
Abstract: IMPROVED ELBOW/KNEE GUARD                 Abstract of the Disclosure The article is a combination of a protective pad, a cover element and two elastic strips.  The protective pad is somewhat wider than it is long.  The top and bottom edges of the pad are substantially straight, while the central portion of each side edge is  cutaway, leaving two protrusions at the opposite ends of each side edge.          The cutaway opening in each side edge extends a substantial distance into the pad, and a further keyhole-shaped opening, central of the cutaway opening, extends even further inwardly of the pad.  The pad is covered with the stretchable fabric cover element, which follows generally the outline of the pad.  The two strips of elastic connect the opposed side edges of the pad-cover combination at each end thereof, with the elastic strips being suff-iciently short that they tend to draw the sides of the pad-cover combination toward each other, thereby curving the surface of the combination so that it will conform to the user's limb.
Patent CA-1107884-A (CA)
Inventor: LEE YOON C
IPC: C08F291/02
Filed: 1978-12-27
Granted: 1981-08-25
Abstract: Case 08-12-0388 APPLICATION FOR LETTERS  PATENT       FOR               RUBBER-MODIFIED TERPOLYMER WITH IMPROVED MOLDING CHARACTERISTICS       ABSTRACT OF THE DISCLOSURE Rubber-modified terpolymers of from 50 to 83% of a monoalkenyl aromatic monomer, from 15 to 30% of an unsaturated dicarboxylic acid anhydride, from 2 to 20% of an unsaturated nitrile are described which are useful as molding compositions.                                     By:  Yoon C. Lee Quirino A. Trementozzi
Patent CA-1132606-A (CA)
Title: Recovery of glycol terephthalate from a low  molecular weight polyester
Inventor: CHANG ROBERT C
IPC: C07C69/82
Filed: 1978-12-28
Granted: 1982-09-28
Abstract: ABSTRACT OF THE DISCLOSURE         A method for recoving a glycol terephthalate from a low molecular weight saturated polyester fraction which is a by-pro-duct in the production of a fiber-forming polyester, the fraction containing at least one glycol selected from the group consisting of ethylene glycol, diethylene glycol, and 1,4-butane diol, water, polyester solids, and metallic impurities, the method comprising the steps of heating the fraction to a temperature sufficiently high to form a single, liquid phase with any insoluble metallic impurities and complexes thereof present as solids dispersed in the liquid phase; separating at least about 75 percent of the insoluble metallic impurities and complexes thereof from the liquid phase; acidifying the liquid phase to a pH sufficiently low to convert substantially all unesterified carboxyl groups to the -   - OH form; cooling the resulting composition to form a solid organic phase, dispersed in a liquid phase comprising water, at least one glycol, and metal salts; and recovering the solid organic phase from the liquid phase.  The method is disclosed in two ways: (1) when the acidification step precedes the heating step and (2) when the acidification step follows both the heating step and the step of separating insoluble metallic impurities and complexes thereof.  The method provides a recycled raw material and reduces waste disposal problems.
Patent CA-1102752-A (CA)
Inventor: MARTIN JOHN C
IPC: B65G25/02
Filed: 1979-02-07
Granted: 1981-06-09
Abstract: ABSTRACT OF THE INVENTION            A freight transporter is disclosed herein which includes a load support which has a load support face arranged to underlie and support load units during transportation thereof and a carriage which has a load carrying face.  An elevator mechanism is provided for adjusting the relative positions of the load carrying face of the carriage and the load support face of the load support so that the load units may be selectively supported by the load support means or the carriage.   When the load units are supported by the carriage, they may be moved with the carriage along the freight transporter and when supported by the supports, they are suitably supported for transportation by the transporter.
Patent CA-1119856-A (CA)
Title: Elements de cable a fibres optiques et cables les  incorporant
Inventor: ARNAUD MAURICE G
IPC: G02B6/44
Filed: 1979-03-08
Granted: 1982-03-16
Abstract: ELEMENTS DE CABLE A FIBRES OPTIQUES ET CABLES LES INCORPORANT. Câbles utilisant des fibres optiques à la transmission des informations. Elément de câble constitué d'une âme rigide enrobée d'un revêtement diélectrique dans lequel sont usinées des rainures hélicoïdales abritant chacune une fibre optique soumise à une torsion comprise entre trois et dix tours au mètre au moment de sa pose, au moins un ruban étant disposé autour du revêtement. Le câble est obtenu en assemblant les éléments avec un pas d'assemblage compris entre deux et cinq fois le pas des rainures hélicoïdales. Câble pour télécommunication. Figure 8.
Patent CA-1119861-A (CA)
Title: Convertisseur opto-electronique pour extremite de  cable a fibres optiques
Inventor: CHIRON BERNARD
IPC: H01L25/04
Filed: 1979-03-13
Granted: 1982-03-16
Abstract: L'invention concerne un convertisseur pour extrémité de câbles à fibres optiques destiné à recevoir des composants opto-électroniques et comprenant une embase munie d'un perçage et portant un substrat isolant comportant au moins un perçage, le substrat étant revêtu d'une métallisation. Le convertisseur selon l'invention est caractérisé en ce que l'embase et le substrat comportent chacun un per çage suivant le même axe et en ce que la métallisation du substrat présente un contour intérieur en forme de polygone régulier convexe admettant l'axe des perçages comme axe de symétrie. L'invention s'applique notamment aux télécommunications par câble.
Patent CA-1129977-A (CA)
Inventor: FASHAM REGINALD L G
IPC: H02P23/00
Filed: 1979-05-09
Granted: 1982-08-17
Abstract: ABSTRACT OF THE DISCLOSURE           Apparatus for controlling the forward speed of operation of a combine harvester to either  increase or decrease the speed, characterized by means for sensing the density of the output from the harvester and producing a first electrical signal one parameter of which varies with the variation in density of the harvester output, means for producing a second electrical signal the same parameter of which varies with variation in speed of operation of the . drive for the harvesting apparatus, means for comparing the two electrical signals to produce a difference signal the magnitude and polarity of which indicate the relationship between the two generated electrical signals and means is provided for controlling the speed of operation of the drive producing forward movement of the harvester in a manner so as to cause the difference signal to be reduced to a minimum.     `:
Patent CA-1124864-A (CA)
Title: Cryptographic architecture for use with a high  security personal identification system
Inventor: KONHEIM ALAN G
IPC: G06K17/00
Filed: 1979-05-15
Granted: 1982-06-01
Abstract: ABSTRACT           A Cryptographic Architecture for improving the security of Cash-Issuing or similar Terminal Systems when it is nec-essary to operate Off-Host.  Each Terminal is connected to a central Controller which is in turn connected to a central Host.  The Master cryptographic key for use in the personal identification mechanism provided in the system is stored in the Controller rather than the terminal.  Means are provided whereby said Controller performs customer identification operations when the Host is not available to do so.  Only data input at the Terminal is utilized whereby the master system key is never exposed at either the Terminal or the communication link.  Additionally, a Terminal status message is utilized with each transaction to prevent a "stale" message from being used to bypass the security procedures by means of eavesdropping or the like.
Patent CA-1163038-A (CA)
Inventor: GRIFFIN HOWARD E
IPC: C08G77/00
Filed: 1979-05-16
Granted: 1984-02-28
Abstract: METHOD AND COMPOSITION RELATING TO EMULSION-POLYMERIZED         POLYDIMETHYLSILOXANES IN DURABLE PRESS RESINS     Abstract of the Disclosure Silicone-containing durable press resin compositions are prepared by polymerizing a polydimethylsiloxane which has been emulsified in an aqueous solution of dimethylolethylene urea or dimethyloldihydroxyethylene urea.  The resulting homogeneous aqueous compositions have improved resistance to separation after freeze-thaw cycling.  Advantageously, more highly concentrated aqueous compositions comprising a silicone-containing durable press resin are available by the method of this invention.  The silicone-containing durable press resin compositions are useful for providing wrinkle-recovery and permanent press to cellulose-containing fabrics.
Patent CA-1076159-A (CA)
Inventor: WINCHELL FRANK J
IPC: B62M1/24
Filed: 1979-07-23
Granted: 1980-04-22
Abstract: SUBSTITUTE                       REMPLACEMENT               SECTION is not Present Cette Section est Absente
Patent CA-1098504-A (CA)
Inventor: WRIGHT JOSEPH B
IPC: F16K5/06
Filed: 1979-08-15
Granted: 1981-03-31
Abstract: TITLE OF THE INVENTION:     BALL VALVE TO RELIEVE CAVITY PRESSURE     ABSTRACT OF THE DISCLOSURE     Disclosed is a ball valve with seats having means to relieve harmful build-up of cavity pressure.  The heel of the valve seat has grooves therein allowing cavity pressure to be applied over a portion of the seat surface in a fashion that produces a resultant force in a lip region of the seat.  This resultant force causes the lip region of the seat temporarily to move away from the ball and thus vent the cavity pressure to a lower pressure zone.
Patent CA-1129622-A (CA)
Inventor: PAGE ENNO H
IPC: B29C45/82
Filed: 1979-10-11
Granted: 1982-08-17
Abstract: ABSTRACT OF THE DISCLOSURE           In a casting machine using an injection ram, the ram movements are measured accurately and reliably in spite of adverse ambient conditions by a special sensing arrange-ment located inside the hydraulic drive cylinder which drives the ram.  A sonic energy pulse is generated in a waveguide near the hydraulic piston.  This pulse propagates along the waveguide to a transducer at the cylinder wall.  The time required for this pulse propagation corresponds to the posi-tion of the piston and hence of the injection ram.
Patent CA-1119797-A (CA)
Inventor: HUSE PER
IPC: A01K91/18
Filed: 1979-11-07
Granted: 1982-03-16
Abstract: APPARATUS FOR DETACHING RELEASABLE SNOODS FROM     A FISHING LINE.             Abstract of the Disclosure.            An apparatus for detaching releasable snoods from a fishing line while at the same time unwinding the snoods from the line, if required, and for deposit-ing the snoods in a storage box continuously as the line is hauled in by means of a winch positioned in front of the apparatus.  Said apparatus cooperating with a hook handling means which orients and guides the hooks being drawn along by the snoods, via hook guides, to one or the other side of the circumference of a wheel provided with a peripheral groove for receiving the line, which is drawn over the wheel by a suitable pulling device and sets the wheel in rotation.  Each snood having fastening means comprising a peg, rotatably attached to the line, and a ring attached to one end of the snood and detachably retained on the peg.  A peg release disk lying resiliently against the periphery of the wheel for partly releasing the said pegs from the said rings.          Fixed hook guides which guide the hooks while they are still being pulled along by the snoods, carrying the hooks over the wheel to a point on the wheel circumference at which the hook guides change direction and prevent further for-ward movement of the hooks, whereby the rings on the snoods are pulled off the pegs.
Patent CA-1123869-A (CA)
Inventor: KISHLINE ALAN R
IPC: B60G3/20
Filed: 1979-12-03
Granted: 1982-05-18
Abstract: TITLE                 WHEEL SUSPENSION SYSTEM                    ABSTRACT           An independent suspension system in which a steering knuckle is employed with an upper ball joint connection to an upper control arm and a lower ball joint connection to an axle outer end.
Patent CA-1118674-A (CA)
Inventor: EIMEN SHAWN H
IPC: B60N2/52
Filed: 1979-12-03
Granted: 1982-02-23
Abstract: HYDRAULIC CUSHIONING DEVICE   FOR VEHICLE SEAT            Abstract of the Disclosure A hydraulic seat cushioning device comprising a cylinder body and a piston has a concentric post-like upward projection in the cylinder body with a cylindrical surface in which there are a pressure fluid port and a vent port.  An annular valving element closely slidably surrounding the post-like portion covers those ports when in a normal position but uncovers the vent port when above that position and uncovers the pressure fluid port when below it.  The piston is so connected with the valving element as to move independently thereof in a lower portion of its stroke, but through the remainder of the piston stroke the valving element is constrained to move with the piston.
Patent CA-1172644-A (CA)
Title: Process for the preparation of trans-3-formylbut-2- enenitrile
Inventor: CHEN SHI-CHOW
IPC: C07D319/06
Filed: 1980-01-14
Granted: 1984-08-14
Abstract: ABSTRACT OF THE DISCLOSURE A process is provided for the preparation of trans-3-formylbut-2-enenitrile (V), a key intermediate in the synthetic pathway leading to trans-zeatin (I) and dihydrozeatin (II), both of which are naturally occurring cytokinins.  The process involves a base catalyzed condensation of a dialkyl or cyclic acetal of pyruvaldehyde (III) with acetonitrile to yield the corresponding dialkyl or cyclic acetal of 3-formylbut-2-enenitrile (IV).  The reaction proceeds regioselectively to form the favoured trans-isomer in good yield.  The .alpha.,.beta.-unsaturated nitrile thus formed is hydrolyzed under acidic conditions to yield trans-3-formylbut-2-enenitrile (V), which can be easily distilled without contamination of the cis-isomer.  The trans-3-formylbut-2-enenitrile can be selectively or exhaustively reduced to form either trans-3-hydroxymethylbut-2-enylamine (VI) or 3-hydroxymethylbutylamine (VII), which compounds can be condensed with 6-chloropurine (IX) by known methods to form trans-zeatin or dihydrozeatin respectively.
Patent CA-1148808-A (CA)
Inventor: IIJIMA TAMOTSU
IPC: F02M1/10
Filed: 1980-01-17
Granted: 1983-06-28
Abstract: ABSTRACT OF THE DISCLOSURE A spark-ignition internal combustion engine in which additional fuel is introduced into the mixture supply system of the engine and, at a certain retarded interval thereafter, the cranking motor of the engine is actuated to start the engine when the engine temperature is low and/or the voltage supplied from the battery to energize the cranking motor is reduced during cranking of the engine.
Patent CA-1125868-A (CA)
Inventor: KAPADIA JAYANT K
IPC: B61L3/06
Filed: 1980-01-25
Granted: 1982-06-15
Abstract: 48,307 ABSTRACT OF THE DISCLOSURE There is disclosed improved time slot scanner control  apparatus,  including a  fail-safe  control pulse former apparatus provided for each of a desired plurality of information time slots to sequence the data information transfer  in  relation  to  the respective  track circuits operative with a transit vehicle.  An information timing track is provided  for sequencing this data information transfer and to reset the apparatus after each provided sequence of time slot control pulses.
Patent CA-1141631-A (CA)
Inventor: PAGE JAMES H R
IPC: C21D8/12
Filed: 1980-03-21
Granted: 1983-02-22
Abstract: ABSTRACT OF THE DISCLOSURE           A method for producing a non-silicon steel for elec-tro magnetic applications includes the steps of producing a vacuum de-gassed steel melt containing less than 0.025% by weight of carbon, between 0.1% and 1.0% of manganese, between 0.01% and 0.15% phosphorus, not more than 0.02% of sulphur, not more than 0.007% of nitrogen, with titanium within the range of 0.05% to 0.25%, the remainder being iron, except for incidental impurities, hot rolling slab derived from the melt, using a finishing temperature within the range 900°C to 950°C and coiling the resulting hot rolled strip at a temperature of not less than 700°C.
Patent CA-1139606-A (CA)
Inventor: ANDERSEN GEERT
IPC: A23G3/00
Filed: 1980-03-26
Granted: 1983-01-18
Abstract: ABSTRACT OF THE DISCLOSURE         Xylitol and sorbitol, when  present in edible material, have the advantage that they do not decompose to form products attacking the dental enamel, but difficulty has been experienced in their use in con-fectionery material due to their instability or the fact that they may contain constituents not permitted by food laws.  The invention provides a chewy sugar-free material based on sorbitol and a sugar-free swelling agent which has the required plasticity and cohesion so that it can be formed into attractive chewy sweets or hard sweets or gum, and furthermore the tendency of xylitol to recrystallize is suppressed, by the use of a swelling agent which may be carrageenates, pectins, agar, alginates such as sodium alginate  or potassium alginate or calcium alginate; carob bean flour, tragacanth, methyl cellulose, carboxymethyl cellulose, gelatine, gum arabic and/or low-sugar maltodextrin.
Patent CA-1119221-A (CA)
Inventor: WUETHRICH HANS R
IPC: H01H33/985
Filed: 1980-04-16
Granted: 1982-03-02
Abstract: ?510  INVENTORS:    HANS-RUDOLF W?THRICH, HUBERT SPIEGEL, HERMANN LEHNER and PETER KREBS          INVENTION:    GAS-BLAST SWITCH     ABSTRACT OF THE DISCLOSURE     A movable, tubular-shaped contact element is displace-ably guided in a partition wall subdividing the internal space of the gas-blast switch housing into an extinguishing chamber and an expansion chamber. During the cut-off stroke a current connection prevails by means of this contact element between both of the chambers or compartments. The contact element coacts with a sta-tionary or fixed contact set having a rim of rated current con-tacts which, in the cut-on position, engage about the contact ele-ment.  Further, there is provided a burn-off ring which is elec-trically connected with the contact element and has an electrical-ly insulated, suspended intermediate electrode which, in the cut-on position, engages into the contact element or piece.  The lat-ter, during the cut-off stroke, initially comes out of engagement with the  rated current contacts and first thereafter comes out of engagement with the intermediate electrode.  In order to ensure that the part of the switching arc which burns between the burn-off ring and the intermediate electrode remains at this location and that its other part, even in the presence of low currents, is sufficiently blown, the burn-off ring is arranged within the rim of rated current contacts and is rearwardly inset with respect to the contact surfaces thereof, and furthermore, a pump device is coupled with the movable contact element.  This pump device, du-ring the cut-off stroke, conveys extinguishing gas out of the re-gion of the extinguishing chamber which is remote from the sepa-ration path to the separation path.
Patent CA-1148697-A (CA)
Inventor: TAKEKOSHI TOHRU
IPC: C08G73/14
Filed: 1980-06-05
Granted: 1983-06-21
Abstract: Abstract of the Disclosure A method is provided for making polyetheramide acid having an intrinsic viscosity in N,N-dimethylacetamide of about 0.05 dl/g to 0.4 dl/g at 25°C.  A mixture of aromatic bis (ether dicarboxylic acid) or dianhydride is heated with a substantially equal molar amount of organic diamine in the presence of water and in the substantial absence of an organic solvent.  The resulting polyetheramide acid is recovered as a finely divided powder and can be used to make high molecular weight polyether-imide by malt extrusion.
Patent CA-1139648-A (CA)
Inventor: ISENHOFF ERIC H
IPC: B21D39/02
Filed: 1980-07-02
Granted: 1983-01-18
Abstract: BATTEN SEAMING MACHINE ABSTRACT OF THE DISCLOSURE A seaming machine for securing a batten to a roof rib includes a housing (24) having two longitudinal sections (25, 29) which are pivotably secured together about a verti-cal axis.  A cam locking arrangement is provided at the rear of the housings to lock the housing sections (25, 29) together when the machine is positioned on a roof rib.  The cam locking arrangement includes a pair of vertically spaced cams (102, 104) which engage a pin (50) disposed in one of the housing sections (25).  The seaming machine comprises three pairs of horizontally disposed rollers (52, 54, 56) which progressively bend a flange on a batten against a roof rib, with the rollers engaging the sides of the roof rib to drive the machine along the rib.  Vertical pinch rollers (76) are provided between the second and third stage horizontal rollers (54, 56) to crimp the flange on the batten against the roof rib.  In this way, a secure and waterproof connection of the batten to the roof rib is provided.
Patent CA-1180885-A (CA)
Inventor: HEIMBERGER HELMUT
IPC: B29C47/00
Filed: 1980-10-16
Granted: 1985-01-15
Abstract: Abstract of the Disclosure A slide fastener having two carrier strips, each having an attached row of base members, each base member having a single arm made from thermo-plastic material and having a carrier band between them, wherein each individual single arm base member is produced by a continuous injection process in molds having a mold wheel and a mold belt, the portion produced in the mold wheel having a mushroom shaped head and the carrier band is carrier thread through the mold wheel portion, and the portion produced in the mold belt having projecting lateral closing elements to cooperate with respective coupling heads on the other carrier strip.
Patent CA-1152612-A (CA)
Inventor: PERRY ROBERT H
IPC: B61L25/02
Filed: 1980-10-23
Granted: 1983-08-23
Abstract: 16                  48,719 ABSTRACT OF THE DISCLOSURE There is provided a transit vehicle control ap-paratus and method, including a plurality of vehicle car-ried signal receivers operative with a transposed signal transmitting cable positioned along the vehicle track for providing an initial and higher speed position determina-tion and then a lower speed and more accurate position de-termination in relation to stopping the vehicle at a de-sired location.
Patent CA-1133228-A (CA)
Inventor: KERBY ROBERT C
IPC: C01G9/06
Filed: 1980-10-24
Granted: 1982-10-12
Abstract: ABSTRACT OF THE DISCLOSURE             A process is disclosed for removal of cobalt, nickel, cadmium and copper impurities from zinc sulphate solution by cementation with zinc dust alloy consisting of, by weight, 0.001 to 0.06%, preferably 0.001 to 0.03% aluminum, 0.05 to about 2.0%, preferably 0.05 to 1.0% lead, and the balance zinc. The alloy can additionally contain 0.02 to 0.1% copper.