baber/WOPTO huggingface dataset:
Patent CA-1077430-A (CA)
Inventor: HSU GRACE F
IPC: C25D3/32
Filed: 1976-11-22
Granted: 1980-05-13
Abstract: ABSTRACT      An acidic electroplating bath for providing a bright tin or tin/cadmium deposit containing stannous ions or mixtures of stannous and cadmium ions, a free acid, a non-ionic surfactant and as a brightener system a ring-halogenated aryl aldehyde, formaldehyde, and at least one compound of the formula:                            where n is zero or 1, m is zero or 1, and when n is 1, m is zero, and when m is 1, n is zero, R1 is hydrogen or a lower alkyl group, and when both m and n are zero, R2 and R3 are hydrogen or lower alkyl groups and R4 is a formyl, alkyl carbonyl, carboxamido, or carboxy group or mixtures thereof, and R4 is a formyl or alkyl carbonyl group or mixtures thereof, R1 or R2 is a lower alkyl group; when n is 1, the combination of R2 and ? represent ethenylene and R3 is an oxygen or sulfur radical, and R4 is as above; when m is 1, the combination of R2 and ?1 represent alkylene, R3 is hydrogen or a lower alkyl group and R4 is a carbonyl group.
Patent CA-1058055-A (CA)
Inventor: KOELLER PAUL
IPC: F03B11/00
Filed: 1976-11-26
Granted: 1979-07-10
Abstract: ABSTRACT OF THE DISCLOSURE           An arrangement for introducing air into the draft tube of turbo-hydraulic machines, in order to promote smooth running at part-load and to facilitate the achieve-ment of full load, relies upon the use of a protective plate in covering relation with the air admission opening and cooperating with the structure located within the draft tube to act as an air eductor, in the manner of a venturi.
Patent CA-1077873-A (CA)
Inventor: JINNO MICHIO
IPC: E01C19/10
Filed: 1976-12-10
Granted: 1980-05-20
Abstract: ABSTRACT OF THE DISCLOSURE Steam is supplied into water to regenerate asphalt waste which in turn is heated in the water to a predetermined temperature.  Such heated asphalt waste is mechanically separated in the water, thereby becoming aggregate grains each having the surface coated with a thin asphalt film.
Patent CA-1039770-A (CA)
Inventor: STAEHLI PAUL
IPC: B29C65/00
Filed: 1976-12-17
Granted: 1978-10-03
Abstract: ABSTRACT OF THE DISCLOSURE    Electrically heated thermoplastic welding sleeve for joining thermoplastic tubes by heating the sleeve by means of a heater coil within said sleeve of which the wire terminals are fed through the wall of the sleeve for connection to a power supply. For centering tubes of unequal diameters, due to manufacturing tolerances, the in-side wall of the sleeve is provided with resilient protrusions. The method for manufacturing said protrusions is characterized by cutting the inside wall longitudinally so that the displaced material from the grooves forms fins.
Patent CA-1052204-A (CA)
Title: Carburettors
Inventor: KAYE RONALD S
IPC: F02M5/02
Filed: 1976-12-22
Granted: 1979-04-10
Abstract: TITLE:     CARBURETTORS         ABSTRACT  OF  THE  DISCLOSURE          This invention provides a carburettor comprising a float chamber, a throat and a fuel duct extending between the chamber and the throat and from which duct, subject to the below, fuel could overflow to the throat on tilting of the carburettor occurring; and wherein the carburettor is characterized in having a weir communicating, on one side, with the float chamber and, on the other side, with fuel collecting means and over which weir fuel can flow on such tilting occurring whereby to at least in part reduce overflow of fuel through said duct to the throat in consequence of such tilting.
Patent CA-1050422-A (CA)
Inventor: GAUT ROBERT T
IPC: E21B33/129
Filed: 1977-02-21
Granted: 1979-03-13
Abstract: ANCHORING DEVICE FOR WELL TOOLS            Abstract of the Disclosure An improved anchoring device for well tools including installing and actuating apparatus for providing visual indication at the ground surface verifying proper latching and locking of the device in a casing string.  The anchoring device includes a tubular housing assembly, a packer cup assembly secured to the lower portion of the housing assembly, an expansion sleeve slidably disposed within the housing assembly for forcing latching dogs radially outwardly from the housing assembly to engage an annular recess in the casing string, a setting sleeve longitudinally slidably disposed within the housing assembly telescopically related to the expansion sleeve and a lock sleeve releasably secured to the setting sleeve and telescopically re-lated to the expansion sleeve.  Three sets of cam-actuated dogs carried by the expansion sleeve react to the relative longitudinal displacement between the expansion sleeve, setting sleeve and lock sleeve to transfer upward force applied by a wire line to latch the anchoring device in the casing string, lock the device in the latched position and actuate the installing and actuating tool to positively indicate whether or not the anchoring device has been properly latched and locked. in the casing string.  Additional attachments are disclosed for use with the installing and actuating tool to adapt it for releasing and retrieving a properly or improperly latched and locked anchoring device from the casing string.
Patent CA-1091206-A (CA)
Inventor: ANDREWS NORWOOD H
IPC: B02C19/06
Filed: 1977-03-07
Granted: 1980-12-09
Abstract: ABSTRACT OF THE DISCLOSURE           A jet-type grinding mill having a circular chamber wherein a rotating vortex is formed by gaseous fluid injected into the chamber, the material to be ground being fed into the mill through a feed means at the center of the vortex, there being a central recess at the bottom of the chamber below the feed inlet which has upwardly inclined walls to direct the fed particles upwardly and outwardly into the vortex.
Patent CA-1066986-A (CA)
Title: Thermal safety valve
Inventor: BERN EDWARD C
IPC: E21B35/00
Filed: 1977-04-21
Granted: 1979-11-27
Abstract: ABSTRACT OF THE DISCLOSURE           A thermally activatable safety valve apparatus is provided with  a  timing assembly and valve means operationally associated with the timing assembly. First and second fluid trans-mission means are provided through the apparatus, with one of the first and second fluid transmission means being isolatable by activation of the timing assembly.  A thermally activatable trigger means isolates the other of the said first and second fluid transmission means and also initiates the closure of the valve means associated with the timing assembly.  Upon activa-tion of the present thermal safety valve,control fluid upstream of the apparatus is isolated from the transmission line down-stream of the apparatus, and downstream control fluid is per-mitted to dump through the apparatus for a predetermined per-of time, at the conclusion of which the said valve means associated with the timing assembly completes closure which isolates the downstream control fluid, whereby the hazards or additional and potential fire fuel are greatly reduced.
Patent CA-1093448-A (CA)
Inventor: COSBY JAMES L
IPC: B31F1/28
Filed: 1977-05-18
Granted: 1981-01-13
Abstract: ABSTRACT OF THE DISCLOSURE                 An improved web guide structure of the self-adjusting type for a corrugated web single-facer machine including a plurality of laterally spaced guides for continuously and yieldably urging a corrugated medium web against a lower corrugator roller, a support rigidly mounted to the single-facer for pivotally supporting the guides, and a gravity-actuated and adjustable biasing means for urging the guides against the corrugated web at preselected pressures.          The guides preferably include a trailing guide portion that remains in engagement with an adhesive applicator roll when the roll is moved out of engagement with the corrugated web to maintain alignment of the guides with the roll.  Springs may also be used in conjunction with the support to apply greater or lesser pressure to all of the guides simultaneously.  The method includes applying pressure at selected lateral locations across the width of the corrugated web, such pressure being yieldably applied to each of the guides by an elastic member or by gravity-actuated counterweights.
Patent CA-1094269-A (CA)
Title: Printing blanket and method  of manufacture
Inventor: THOMAS ERIC W
IPC: B32B5/24
Filed: 1977-05-26
Granted: 1981-01-27
Abstract: Applicant:  Eric W. Thomas and Thomas J. Maistros Title:  PRINTING BLANKET AND METHOD OF MANUFACTURE                     ABSTRACT OF THE DISCLOSURE            The present invention provides an improvement in the manufacture of laminates containing a rubber surface and particularly to a method of preparing printing blankets for the printing industry wherein the top or printing layer comprises a substantially void-free fluoroelastomer.  The improved method of preparing the printing blankets of the invention comprises preparing a composite of a fibrous or pressure sensitive adhesive backing material; a layer of a foamable and cross-linkable elastomeric material over the backing material; a second fibrous material over the layer of foamable material; a top layer of a non-foamable cross-linkable elasto-meric material over said second layer of fibrous material; and molding the composite at an elevated temperature under pressure.  The improved process of the present invention provides a compressible printing blanket having a top layer surface which not only is substantially void free but also is substantially free of surface irregularities.
Patent CA-1070994-A (CA)
Inventor: TAKEMURA AKIRA
IPC: B21K1/56
Filed: 1977-08-10
Granted: 1980-02-05
Abstract: DRILL SCREW AND DIE FOR PRODUCING SAME     ABSTRACT OF THE DISCLOSURE            A drill screw is produced by a pinch pointing die comprising a pair of substantially identical drill point forming portions each of which includes a half conical recess, a half cylindrical recess and a half truncated conical recess.  The drill screw thus produced comprises, therefore, substantially identical two half drill point portions each of which includes a half con-ical portion, a half cylindrical portion and a half trun-cated conical portion.
Patent CA-1048899-A (CA)
Inventor: ZAHID A
IPC: F15B1/08
Filed: 1977-09-06
Granted: 1979-02-20
Abstract: Title:  IMPROVED PRESSURE DAMPENER DEVICE             ABSTRACT           The present invention is directed to an improved dampener device of the type employed to dampen or reduce the amplitude of pulses in hydraulic systems.  The device is characterized by increased versatility and simplicity of design, leading to low manufacturing cost.
Patent CA-1108484-A (CA)
Inventor: MAGID ROBERT P
IPC: B32B7/06
Filed: 1977-09-19
Granted: 1981-09-08
Abstract: SELF-ADHERING MATERIAL           Abstract of the Disclosure A novel adhesive material comprising a plastic foam having at least a surface layer of open cells in which the surface layer of cells contains a pressure-sensitive adhesive composition formed by applying the adhesive to the foam, while the foam is maintained under pressure sufficient to cause the cell walls of the surface layer of cells to be exposed and be relatively flat so as to receive the adhesive.  Upon the release of pressure, the cellular structure returns to its normal state and does not exhibit a tacky surface but will adhere to itself upon the application of pressure sufficient to expose the adhesive-containing cell walls.
Patent CA-1088687-A (CA)
Inventor: YOSHITOSHI MAKOTO
IPC: H04M1/76
Filed: 1977-10-21
Granted: 1980-10-28
Abstract: ABSTRACT     An automatic signal level adjusting circuit for use in a telephone set.  A current detecting resistance element is serially connected in a loop for supplying current to the telephone set.  A switching circuit is ON-OFF controlled in response to the voltage drop across the resistance element in turn controlling an impedance element selectively connected across the loop for adding AC loss.  The switching circuit comprises two three terminal semiconductor switching elements, one of the switching elements being connected to be ON-OFF controlled in response to the voltage drop across the current detecting resistance element, and the other switching element connected to be ON-OFF controlled in response to the operation of the first switching element and connected in series with the impedance.
Patent CA-1103198-A (CA)
Inventor: KRUMPELT MICHAEL
IPC: C25B1/46
Filed: 1977-10-21
Granted: 1981-06-16
Abstract: METHOD OF ELECTROLYZING BRINE                 Abstract of the Disclosure A practical method of electrolyzing sodium chloride brine on a commercial scale, obtaining in good yield a caustic product exceptionally low in salt content, is provided.  The process necessarily involves working with a brine of lower calcium-ion content than is ordinarily used, using dimensionally stable anodes, using, preferably but not necessarily, a heat-treated ion-exchange membrane as a separator within the cell, and periodically taking action to reduce the cell voltage, by reducing the current or interrupting it, alone or with a concomitant flushing of the catholyte portion of the cell.
Patent CA-1085057-A (CA)
Inventor: DOI TOSHITADA
IPC: H03M13/27
Filed: 1977-12-09
Granted: 1980-09-02
Abstract: ABSTRACT OF THE DISCLOSURE     Digital signals consisting of sets of simultaneous bits have an error-correcting signal encoded into them by adding an error-correcting bit to each set.  The sets thus enlarged are referred to as digital words.  The digital signals are then converted from simultaneous, or parallel, form to serial, or sequential, form and the digital words from a block of several digital signals at a time are interleaved in such a way that corresponding words from each of the digital signals in the same block are placed in immediate sequence.  Prior to adding the error-correcting bits error-detecting bits can be added to the original bits in inter-secting sets that intersect the first-mentioned sets, in row column relationships and parity bits can also be formed simultaneously with the formation of the error-correcting bits as extensions of the intersecting sets.  In decoding the resulting signals changes in the bits forming one word of each digital signal can be directly corrected, and additional errors can be detected and minimized by forming mean value signals of digital signals that immediately precede and follow the erroneous digital signal or by retaining the preceding digital signal until the succeeding signals return to correct or correctable form.
Patent CA-1075436-A (CA)
Inventor: FARMER DOUGLAS A JR
IPC: C01B11/06
Filed: 1977-12-20
Granted: 1980-04-15
Abstract: ABSTRACT OF THE DISCLOSURE         The present invention describes a solid calcium hypochlorite composition comprising calcium hypochlorite and about 0.5% to about 50% by weight of substantially water-insoluble and unchlorinated magnesium compounds, said magnesium compounds being derived from impure hydrated lime. Furthermore, the present invention describes a process for making this composition, which is an improvement in the known process for the manufacture of a solid calcium hypochlorite composition wherein an aqueous slurry comprising a hydrated lime, a mixture of hydrated lime and at least one alkali metal hydroxide, or a mixture of hydrated lime and at least one alkali metal hypochlorite, is chlorinated to form an aqueous chlorinated slurry containing calcium hypochlorite and further processsing said chlorinated slurry to recover a solid calcium hypochlorite composition, said improvement comprising:          (a) employing a hydrated lime containing from about 97% to about 50% by weight calcium hydroxide and more than about 0.5% by weight magnesium based on the total dry weight of said hydrated lime, (b)  terminating said chlorination reaction when from about 75% to about 99.5% by weight of said calcium hydroxide is chlorinated and from 0% to about 5% by weight of said magensium is chlorinated to form an aqueous chlorinated slurry of substantially water-insoluble and unchlorinated magnesium compounds and calcium hypochlorite, and (c)  further processing said chlorinated slurry to recover a solid calcium hypochlorite composition having admixed therein said substantially water-insoluble and unchlorinated magnesium compounds, said magnesium compounds being derived from impure hydrated lime.
Patent CA-1066739-A (CA)
Inventor: FOLGER ROGER J
IPC: E05B65/10
Filed: 1978-01-16
Granted: 1979-11-20
Abstract: S P E C I F I C A T I o N                    Abstract of the Invention A panic exit actuator and locking mechanism adapted particularly for mounting on a narrow stile door frame with the actuator spanning substantially the full door width and extending between the inner and outer narrow stile frame members, and wherein the lock mechanism is mounted in the outer narrow stile frame member and has a latch bolt supported for movement between latched and unlatched positions, the latch bolt being releasably retained in the latched position by deadlock means and being movable to an unlatched position in response to pressure applied in a door opening direction to a push bar that is movably supported on one or more linkage assemblies having an operating connection with actuating means operable to initially release the deadlock and thereafter move the latch bolt to the unlatched position.  The latch bolt in latched position is arranged to engage a strike formed with a camming surface such that, with the deadlock released, the application of opening pressure against the door will cause the camming surface to effect movement of the latch bolt to its unlatched position.
Patent CA-1105029-A (CA)
Inventor: BORROR ALAN L
IPC: C07D277/84
Filed: 1978-02-01
Granted: 1981-07-14
Abstract: ABSTRACT OF THE DISCLOSURE       Photosensitivity of a blue-sensitive emulsion in a multi-color diffusion transfer photographic system is enhanced by sensitizing the emulsion with certain 3,3'-di-substituted 4,5-benzothia-thiacyanine betaines of the general formula   wherein R is methyl, ethyl, or sulfopropyl, R1 is alkyl of 1 to 4 carbon atoms, or sulfoalkylene of between 1 and 4 carbon atoms, only one of R and R1 being a sulfo moiety, and wherein X is hydrogen, fluorine, chlorine or methyl.  These compounds impart adequate blue sensitivity to an emulsion without losses in D-max without sensitivity loss in the presence of emulsion stabilizers.
Patent CA-1094166-A (CA)
Inventor: JANKELSON BERNARD
IPC: A61N1/36
Filed: 1978-03-06
Granted: 1981-01-20
Abstract: TITLE          MANDIBLE STIMULATOR            ABSTRACT OF THE DISCLOSURE         A stimulator for causing involuntary mandibular closure.    The stimulator operates in either a "test" mode in which the elec-trical conductivities in a pair of electrode circuits are mea-sured, or a "pulse" mode in which adjustable amplitude current pulses are generated in the electrode circuits.  In the "test" mode a constant voltage is applied to left and right electrode circuits, and the currents through the electrode circuits are mea-sured.  A first comparator circuit flashes respective "open" cir-cuit warning lamps if the current through either of the electrodes is less than a preset value, and it flashes a "good" connection indicator lamp if the current through both electrodes is greater than the preset value.  A second comparator circuit determines if the current through one electrode exceeds the current through the other electrode by a preset value, and flashes respective "low" current warning lamps in response thereto.  In the "pulse" mode an oscillator repetatively charges a capacitor to a high voltage through a pulse transformer, and the high voltage is then gated to a control circuit which generates a pulse of current having an adjustable amplitude through either or both electrode circuits. the amplitude of the current through one electrode circuit with respect to the current through the other electrode circuit may be adjusted with a balance control in order to produce a symmetrical muscle response even though the muscles of one side are in spasm or contracture.  In the "pulse" mode, the battery voltage is also measured, and respective lamps flash in synchronism with the cur rent pulses to indicate whether the battery is producing the pro-per voltage or whether the battery must be replaced.
Patent CA-1105665-A (CA)
Inventor: GUSTAVSSON LENNART
IPC: D04H13/00
Filed: 1978-03-23
Granted: 1981-07-28
Abstract: METHOD AND APPARATUS FOR FORMING A WEB OF MATERIAL   Lennart   Gustavsson ABSTRACT OF THE DISCLOSURE     A web is formed from particulate material, for example, wood fibers, by depositing the fibers on a conveyor surface in a distribution chamber.  The particulate material is introduced into the distribution chamber at its top by a carrier air stream which is caused to oscillate across the surface by impulses from separate control blow boxes on the opposite sides of the stream.  The particulate material is thoroughly dispersed in the air stream by passage through a transition zone where the carrier air stream is deflected into a zigzag path and its flow velocity is reduced.  The effect of static electricity on the particles in the carrier stream is reduced by lining the transition zone with nonconductive material and providing ionizing devices in the blow boxes for the air flow passing through the control boxes, or in the chamber adjacent the boxes.
Patent CA-1105296-A (CA)
Inventor: LE GARFE ROGER
IPC: B23K9/028
Filed: 1978-03-29
Granted: 1981-07-21
Abstract: Machine d'aboutage de deux extrémités de conduites à relier par soudage, comportant des premiers moyens de fixation d'une première extrémité de conduite et des deuxièmes moyens de fixation d'une deuxième extrémité de conduite par rapport à un bâti de machine. La machine est caractérisée en ce qu'elle comprend au moins un vérin disposé entre le bâti et un écrou de blocage faisant partie desdits deuxièmes moyens de fixation , et fixé au voisinage de la deuxième extrémité de conduite du même côté de la machine, considéré longitudinalement, que celui de la deuxième extrémité de conduite, ce vérin étant pour assurer la compression de la deuxième extrémité de conduite contre la première extrémité de conduite et compenser ainsi le retrait dû à la soudure et au refroidissement des pi èces préchauffées.
Patent CA-1073807-A (CA)
Inventor: ROBINSON LEON H JR
IPC: E21B17/00
Filed: 1978-04-14
Granted: 1980-03-18
Abstract: ABSTRACT OF THE DISCLOSURE An insulated electric conductor employed in a tubular drill string to transmit electric energy between subsurface and surface locations is arranged within the drill string in a convoluted configuration to provide an excess length of conductor.  The convoluted conductor is prevented from en-tangling during drilling by rotation limiting assemblies mounted in the drill string over a selected interval.
Patent CA-1104751-A (CA)
Inventor: BOKROS JACK C
IPC: A61F2/06
Filed: 1978-06-20
Granted: 1981-07-14
Abstract: ABSTRACT          A tubular vascular graft is attached to a rigid tubular portion of an implantable prosthetic device by assembling the vascular graft plus a surrounding heat-shrinkable polymeric sleeve on the rigid tubular portion.          The polymeric sleeve, which may be TEFLON-FEP*, extends a short distance past the free end of the tube and upon heating shrinks into firm compressive contact with the vascular graft and provides a smooth transition in stiffness between the end of the rigid tube and the soft, flexible graft.          * Trade Mark
Patent CA-1114486-A (CA)
Inventor: GOESSLER GERHARD
IPC: G01P3/36
Filed: 1978-07-05
Granted: 1981-12-15
Abstract: A B S T R A C T        An electric time switch mechanism is provided comprising a plurality of units each having an operating thermal expansion member, for example, a bimetallic member.  Electrical beating means are provided for the thermal expansion member and a switch is activated by the thermal expansion member.  The units are connected in series in such a way that the activation of a switch turns off the heating means of the associated thermal expansion member and turns on that of the following units.      The switches remain in the activated state after activa-tion and are resettable by external activation.