baber/WOPTO huggingface dataset:
Patent CA-1205301-A (CA)
Inventor: BUROUGH IRVIN G
IPC: G01N21/27
Filed: 1983-05-16
Granted: 1986-06-03
Abstract: NON-DISPERSIVE GAS ANALYZER                         ABSTRACT        Pulse modulated infrared energy is directed through a sample cell containing a gas mixture.  The gas mixture may include a selected one of a plurality of gases.  Each gas exhibits a characteristic absorption in the infrared wavelengths.  A detector responsive to infrared energy at a preselected wavelength develops an AC signal having an amplitude proportional to the infrared energy passing through the sample cell at the preselected wavelength and having a frequency corresponding to the preselected pulse modulation frequency.  The preselected wavelength is common to the absorption characteristic of each of said gases.  The AC signal is processed to develop a DC signal having an amplitude determined from the AC signal.  The DC signal is applied to an amplifier having a variable gain feedback which provides a plurality of gain steps.  Each gain step is associated with a different one of the gases. A single surrogate gas may be used to calibrate each gain step.  The DC signal is amplified by the appropriate gain step to develop a second DC signal proportional to the concentration of the gas and the mixture contained in the sample cell.  The amplifier may further include an analog to digital convertor which stores a digital equivalent of a zero offset output voltage of the amplifier when its input is grounded.          The digital signal is reconverted to an analog signal and a current proportional to such signal is normally applied to the input of the amplifier to maintain zero stability.
Patent CA-1215478-A (CA)
Inventor: MITLEHNER HEINZ
IPC: H01L29/872
Filed: 1983-05-20
Granted: 1986-12-16
Abstract: ABSTRACT OF THE DISCLOSURE         A Schottky power diode includes a semiconductor substrate having a given band gap, a semi-insulating intermediate layer disposed on the substrate, an insulating layer disposed on the intermediate layer and a Schottky contact disposed on the inter-mediate layer, whereby the intermediate layer is disposed between the Schottky contact and the substrate, the intermediate layer having a density of localized states from 1017 to 1020 eV cm-3, the intermediate layer having a band gap larger than the given band gap in the semiconductor substrate, and the intermediate layer having a resistivity of between 105 and 1011 ohm cm.  On the other hand the insulating layer may be disposed on the sub-strate and the intermediate layer may be at least partly disposed on the insulating layer.
Patent CA-1161123-A (CA)
Inventor: NEBERGALL PERRY A
IPC: H05B6/62
Filed: 1983-06-15
Granted: 1984-01-24
Abstract: ABSTRACT   A cannula for insertion into a body cavity, duct, or vessel of a patient includes a parent cannula member and an integral radiopaque tip.  The tip is configured so as to be distinguishable from internal body parts in an X ray or fluoroscopic image, thus serving to precisely locate the position of the cannula within the patient without substantially obstructing the physician's view of such body parts.  The cannula tip and parent member are separately pre-formed from a non-toxic polymeric material and can be constructed so as to have different hardnesses.  In one embodiment, the tip is softer than the parent member in order to prevent internal injury to the patient, while in a second embodiment the tip is harder than the parent member for facilitating certain catheterization applications.  The pre-formed tip and parent member are then dielectrically heated and welded securely together to form a unitary, integral cannula.  The electrodes of the dielectric heating apparatus are connected to dies whose diametrical dimensions conform closely to those of the tip and parent member to provide the present cannula with completely smooth interior and exterior surfaces. In order to prevent the burning of the cannula during this heating process, air is vented from the junction area by providing the outer die with a convex interior surface and by forming longitudinal grooves in the external surface of the inner die or mandrel.  The inner mandrel is formed by encapsulating the inner electrode with a highly insulative material to further inhibit burning of the cannula.
Patent CA-1192868-A (CA)
Title: Clothes-line
Inventor: DOYLE REXFORD
IPC: B65G17/32
Filed: 1983-08-02
Granted: 1985-09-03
Abstract: ABSTRACT OF THE DISCLOSURE             An endless clothes-line is trained onto pulleys in the usual manner and a sprocket wheel is located between the top and bottom run of the clothes-line and nearer one of the pulleys.  Both ends of a cable are attached to the clothes-line.  The cable carries spaced clothes pins and is trained on the sprocket wheel.  The clothes pins clip onto the clothes-line and are made to disengage the same when travelling around the sprocket. Each clothes pin has a V-shape configuration with a circular notch at the apex of the space between the legs of the clothes pin.  Each clothes pin has a transversely-slidable locking plate, also with a notch registering with the notch of the pin itself in the open position, so as to receive the clothes-line or the clothes-line with the garment draped thereon.  The locking plate is spring biased to closed position.  In this closed position, the locking plate protrudes from one side of the clothes pin.  Movement of the line causes successive clothes pins to engage a V-shape recess at the periphery of the sprocket wheel, whereby the locking plate is caused to move to open position and release the clothes-line.  Rotation of the sprocket wheel successively presents the clothespins in open and operative position to the lower run of the line for automatic-ally securing thereon the garments previously placed on the line.
Patent CA-1229132-A (CA)
Inventor: ARMSTRONG CHARLES
IPC: G05F1/44
Filed: 1983-08-22
Granted: 1987-11-10
Abstract: Abstract of the Invention A phase control system for controlling the magnitude of A.C. power supplied to a load through a bilateral switch element such as a trial or a pair of inverse/parallel-connected SCRs.  The state of the switch element is controlled such that the angle of conduction in the positive and negative half power cycle are equal.  The conduction angle during one polarity half power cycle is controlled by an adjustable timing circuit with the conduction angle during the opposite polarity half power cycle being controlled by a second timing circuit which provides a delay equal to one-half the power cycle period.  With the conduction angle so controlled, the control system provides a balanced output despite the presence of non-linearities and other inaccuracies in the adjustable timing circuit.
Patent CA-1210856-A (CA)
Inventor: CHAMBERS BENJAMIN C
IPC: D04H3/10
Filed: 1983-09-12
Granted: 1986-09-02
Abstract: MEANS AND METHOD FOR ADJUSTING AND CONNECTING CORDS                    Abstract A bead for connecting cords.  The bead includes holes there-through through which the cords extend and adhesive in the holes for bonding the cords to the bead.  A method is also described for adjusting the lengths of and connecting cords and includes the steps of fabricating a bead with holes, inserting cords through the holes, attaching a clamp to a cord whose length is to be adjusted, inserting shims between the bead and clamp so as to position the bead, introducing adhesive into the holes, and removing the clamp and shims.
Patent CA-1195514-A (CA)
Inventor: DAIGLE CLEMENT
IPC: E02D29/12
Filed: 1983-10-17
Granted: 1985-10-22
Abstract: ABSTRACT OF THE DISCLOSURE         Means and method for assuring tightly sealing a manhole/sewer pipe connection are provided herein.  The heart of the invention resides in a molded elastomeric circular gasket for resiliently supporting a sewer pipe in a manhole opening and sealing the space between the wall of the opening and the surface of the pipe.  The transverse cross-section of the gasket has a generally triangular head, with a forward face pro-vided with an arcuate depressing therein, and a sloping rear face; a generally rectangular body, integral with the generally triangular head and generally "L" shaped leg depending from the body and coextensive with the rear face of the body, the leg of the "L" being directed towards the forward face.  The method of installation of the gasket into the peri-pheral surface of an opening through the body of a manholw wall comprises the first step of installing at a predetermined movable location, between the inner and outer shells of a form for casting the concrete wall of a manhole, a special two-part mold.  The two-part mold consists of an inner mold member of dished shaped having radially outwardly extending flanges thereon of greater diameter than the opening, and an outer mold member of complementary dished shaped having side flanges thereon of the same dia-meter as the opening.  The mold is configured to hold a portion only of the elastomeric gasket strip, leaving a portion of the gasket strip pro-jecting outwardly from the mold.  The second step involves positioning the mold between the shells by means of a depending bar held to the outer shell and temporarily but firmly secured to the outer shell.  The next step involves pouring settable material into one space between the inner and outer shells so as to surround and enclose the mold, and so as to (abstract continued) surround and enclose those portions of the gasket strip which are not received within the mold.  The settable material is then permitted to set, and the inner and outer forms are removed, the two part mold separated and removed.  This leaves that portion of the gasket strip which had been embedded in the mold projecting into the opening in the body of the manhole wall.
Patent CA-1211152-A (CA)
Inventor: HOMGREN NILS V
IPC: H02H7/22
Filed: 1983-11-07
Granted: 1986-09-09
Abstract: Abstract of the Disclosure An apparatus is provided for single-point, multi-point or cross-bonding electrical power cables.  The apparatus includes an electrically insulated housing which defines an access well,  two electrical conductors each having one end disposed within the well, a cover for closing-off the well, a linking device carried by the cover for removably and electri-cally connecting together those ends of the two electrical conductors which are disposed within the well, and a connect-ing device for electrically connecting the linking device to a terminal on the exterior of the housing.   In the preferred embodiment a movable over-voltage protective device or surge arrester is electrically interposed between the linking device and the connecting device.  When the cover is installed two electrical conductors are electrically connected together and to the surge arrester.   Other embodiments are described and illustrated.
Patent CA-1207101-A (CA)
Inventor: MORRELL ROBERT F JR
IPC: B25C1/00
Filed: 1983-11-09
Granted: 1986-07-08
Abstract: LATCH ASSEMBLY FOR THE FRONT GATE OF THE GUIDE   BODY OF AN INDUSTRIAL FASTENER DRIVING TOOL          ABSTRACT OF THE INVENTION A latch assembly to lock in closed position the front gate of the guide body of an industrial fastener driving tool of the type wherein the guide body and the front gate (in closed position) define a part of a drive track for the tool driver and fasteners.  The gate has a first free end and a second end pivotally affixed by a pivot pin to the guide body and is swingable between a closed position against the guide body and an open posi-tion.  The latch comprises a leaf spring overlying the gate and having a first free end and a second end pivot-ally affixed to the guide by the same pivot pin as the gate.  The leaf spring has first and second angularly related portions so as to bow outwardly of the gate.  A latch pin is mounted transversely on the leaf spring along the juncture of its first and second portions with the ends of the latch pin extending beyond the leaf spring.  A U-shaped latch lever is provided having a base portion to be manually grasped and hook-shaped legs termi-nating in free ends pivotally affixed to the guide body to either side of the gate and the leaf spring.  The latch lever is pivotable between an open position and a closed position wherein the legs thereof engage the latch pin ends with an over-center action, urging the leaf spring against the gate and locking the gate in its closed position.
Patent CA-1210157-A (CA)
Inventor: STIFFLER JACK J
IPC: G11C29/00
Filed: 1983-12-09
Granted: 1986-08-19
Abstract: ABSTRACT                  Memory Backup System Apparatus for maintaining duplicate copies of information stored in fault-tolerant computer main memories is disclosed.  A non write-through cache memory associated with each of the system's processing elements stores computations generated by that processing element.  At a context switch, the stored information is sequentially written to two separate main memory units.  A separate status area in main memory is updated by the processing element both before and after each writing operation so that a fault occurring during data processing or during any storage operation leaves the system with sufficient information to be able to reconstruct the data without loss of integrity.    To efficiently transfer information between the cache memory and the system main memories without consuming a large amount of processing time at context switches, a block status memory associated with the cache memory contains an entry for each data block in the cache memory.  The entry indicates whether the corresponding data block has been modified during data processing or written with computational data from the processing element.  The storage operations are carried out by high-speed hardware which stores only the modified data blocks.  Additional special-purpose hardware simultaneously invalidates all cache memory entries so that a new task can be loaded and started.     Figure 1.
Patent CA-1221316-A (CA)
Inventor: MILLER WENDELL R
IPC: B01D29/66
Filed: 1983-12-23
Granted: 1987-05-05
Abstract: BACKWASHING-TYPE FILTERING APPARATUS                         Abstract A filtering apparatus suitable for being cleaned by backwashing includes an outer housing (11) and an inner filter (13) disposed in the outer housing defining an outer annular flow passage (16) and an inner flow passage (17).  The outer housing is tapered in relation to the external shape of the filter to provide a substantially uniform liquid velocity through the filter in both forward flow and backflow directions. The filter is made up of a plurality of ring-like seg-ments (38) stacked end to end on which a filter medium (37) is mounted.
Patent CA-1233815-A (CA)
Inventor: HOSHI HIDEAKI
IPC: C07D501/06
Filed: 1984-01-05
Granted: 1988-03-08
Abstract: Abstract 3-[(Z)-1-Propen-1-yl]-7-acylamido cephalosporins in which the 7-acyl group is phenylglycyl or substituted phenylglycyl are orally active antibiotics against Gram+ and Gram- bacteria.
Patent CA-1224154-A (CA)
Inventor: PETROW HENRY
IPC: A61K8/19
Filed: 1984-01-12
Granted: 1987-07-14
Abstract: Abstract of the Disclosure A hair treating solution and method are provided for improving hair quality and aiding in removal of inorganic substances from hair.  Metals such as copper, iron, manganese, nickel and the like, if attached to hair after swimming or other hair-exposure thereto, can be removed by the use of soluble lanthanum salt in a simple rinsing method.
Patent CA-1212442-A (CA)
Inventor: O'TOOLE ANTHONY J P
IPC: H04Q11/04
Filed: 1984-01-17
Granted: 1986-10-07
Abstract: ABSTRACT OF THE DISCLOSURE             ELECTRONIC SWITCHING SYSTEM    An address and data control system for a T.D.M. telecommunication exchange to control the passage of data between subscribers and between subscribers and a common control computer in which a digital switch controller buffers between computer and an inter shelf bus, a shelf interface circuit buffers between the inter shelf bus and a shelf bus and in which telephony group interface circuits buffer between the telephone subscribers and the shelf bus.
Patent CA-1180403-A (CA)
Inventor: BOLAND LAWRENCE J
IPC: H01R24/00
Filed: 1984-01-27
Granted: 1985-01-02
Abstract: ABSTRACT                  Non-Shorting Pin System The invention is a zero insertion force printed circuit board edge connector that ensures electrical connection under a worst-case accumulation of mechanical tolerances while precluding the short circuiting of connector contact pins in the absence of a board within the connector.  The contact pins of the connector are formed so that the contact regions of the contact pins lie in at least two horizontal planes.  The longer pins located on one side of the connector are located opposite the shorter pins on the other side of the connector.  When the connector is actuated in the absence of a printed circuit board, the short pins will move under the opposing long pins but the pins will not short circuit. During actuation, the pins will move more than half way across the connector opening thereby guaranteeing con-nection to any card regardless of dimensional tolerance or of card position within the connector opening.
Patent CA-1195814-A (CA)
Inventor: NARASIMHAN KALATUR S V L
IPC: H01F41/02
Filed: 1984-02-03
Granted: 1985-10-29
Abstract: ABSTRACT OF THE DISCLOSURE         A method for improving the remanence of magnets products.  The method comprises consolidating a particle charge of a magnet alloy to form a magnet product.  The method includes applying a magnetic field to the particle charge to magnetically align the particles and then hot isostatically pressing the particles to consolidate them to full density.
Patent CA-1236042-A (CA)
Inventor: GUDELIS DAVID A
IPC: C10G73/04
Filed: 1984-03-01
Granted: 1988-05-03
Abstract: ABSTRACT OF THE DISCLOSURE         This  invention relates to processes for solvent dewaxing bright stock waxy raffinate oil employing a dewaxing aid which dewaxing aid is a mix-ture of (a) poly di alkyl fumarate/vinyl acetate co-polymers and (b) a wax-naphthalene condensate. The dewaxing aid mixture is a mixture of (a) poly di alkyl fumarate/vinyl acetate copolymer having a number aver-age molecular weight of about 1,000 to 100,000, pre-ferably 5,000 or greater, possessing alkyl side chain moieties  of  from  C16-C24+  in  length  (excluding branching) with an average pendent side chain length of predominantly (>50%) C20 and the olefinic radical of which has from 2 to 30 carbon atoms, preferably 2 carbons; and (b) a wax-naphthalene condensation pro-duct having a number average molecular weight of about 1,000 and greater. The combination (a) plus (b) may be employed in a weight ratio within the range from about 45/55 to 1/100, preferably about 1/3, and at an aid dose level ranging from about 0.005 to 2.0 wt%, pre-ferably 0.01 to 0.2 wt% active ingredient.
Patent CA-1234491-A (CA)
Inventor: GRANT EDWARD L
IPC: G09F7/18
Filed: 1984-03-29
Granted: 1988-03-29
Abstract: AN ATTACHING DEVICE                Abstract of the Disclosure A device is provided for attaching a depending unit (e.g., a poster) to a ceiling wherein the latter includes a support having an exposed flange.  The depending unit has a thin upper peripheral segment with means for adjustment from a first mode to a second mode.  The device has an elongated member provided with an elongated interior cavity accessible through an elongated narrow opening formed in the exposed surface thereof.  The opening is sized to permit the unit upper peripheral segment to pass therethrough only when the means is in the first mode.  When the unit upper peripheral segment is disposed within the cavity of the elongated member, the means assumes a second mode whereby the elongated member and said unit are retained in attached relation.  The device is provided with an element which engages a concealed surface portion of the elongated member and coacts with the exposed flange of the ceiling support and secures the elongated member thereto.
Patent CA-1221565-A (CA)
Inventor: MEIER HANS-JUERGEN
IPC: G02B7/183
Filed: 1984-04-11
Granted: 1987-05-12
Abstract: ABSTRACT OF THE DISCLOSURE:           An edge supporting system that is especially suited for an azimuthally mounted mirror.  In this system, the supporting forces are all arranged to be parallel to the projection of the gravity force in the plane of the mirror. The magnitudes of the supporting forces are reduced with increasing distance of the force application points from the upper and lower apex points of the mirror. The supporting forces are preferably so selected that they correspond to the weights of the strip-like segments from which the mirror is assembled and to which points of force application are assigned.
Patent CA-1209734-A (CA)
Inventor: RYAN DESMOND J
IPC: H04M1/15
Filed: 1984-06-04
Granted: 1986-08-12
Abstract: TELEPHONE HANDSET CORD GUIDE AND RETAINER          Abstract of the Disclosure Handsets for communications terminals can cause interference with operation of keyboards and the like because the handset cord can obstruct the keyboard when "on-hook".  By clipping a cord guide and retainer on to the end of the handset, the cord can be guided to exit sideways.  The cord guide and retainer is a channel-shaped member which snaps on to the end of the handset and has a recess into which the cord exits from the handset and from which the cord exits at one end through an aperture.  The guide and retainer can be attached in either of two directions to cause the cord to exit to either side of the handset.                               -i-
Patent CA-1240549-A (CA)
Inventor: ROYCHOUDHURY RATHINDRA N
IPC: C11B9/02
Filed: 1984-07-10
Granted: 1988-08-16
Abstract: Abstract Coffee oil treatment A process for reducing the diterpene content of coffee oil in which the coffee oil is initially heated, then extracted with an aqueous isopropanol solution, after which the oil layer is separated from the aqueous isopropanol layer.
Patent CA-1249285-A (CA)
Inventor: MCSHANE LAWRENCE J
IPC: C07D205/08
Filed: 1984-07-20
Granted: 1989-01-24
Abstract: ABSTRACT OF THE DISCLOSURE            Azetidinone sulfinic acids of Formula (I)             (I) in which:          R1 is an acyl residue of a carboxylic acid; R2 is hydrogen, lower alkoxy or lower alkylthio; and R3 is a removable ester forming group; are prepared by reacting a 3-exomethylene sulfone of Formula (II)   (II) wherein R1, R2 and R3 are as defined above, with a metal such as activated zinc or magnesium and a protonic acid in a solvent such as N,N-dimethylformamide and at a temperature of from about 20° to about 100°C.  The azetidinone sulfinic acids thereby obtained are useful in the synthesis of 1-oxadethiacephalosporin anti-biotics.
Patent CA-1254226-A (CA)
Inventor: DEMARNE HENRI
IPC: C07C69/92
Filed: 1984-08-15
Granted: 1989-05-16
Abstract: ABSTRACT OF THE DISCLOSURE      This invention concerns a process for the preparation of benzoic acid derivatives with the general formula:                                          (I) in which:     A represents a straight or branched alkyl chain with 5 to 7 carbon atoms, X represents the oxygen atom or a direct bond, R represents hydrogen or an alkyl group with 2 to 6 carbon atoms, possibly substituted by an alcohol function, with the proviso that if R is H and A is a neopentyl group, X is a direct bond, and the salts of the said derivatives.  The compounds possess antimicrobial activity.          This process consists of:          (1)  subjecting the compound of formula IV to catalytic hydrogenation:                                      (IV) in which X and A are as defined above to form the corresponding aniline derivatives, (2)  the addition, to the said aniline derivatives, of sodium nitrite in acidic medium, to form the corres-ponding diazoniums, (3)  the conversion of the said diazoniums to benzonitriles by the action of cuprous cyanide, (4)  the conversion of the benzonitriles obtained to formula I compounds and (5)  if necessary, convert the said compound obtained to a pharmaceutically acceptable salt.