baber/WOPTO huggingface dataset:
Patent CA-1099561-A (CA)
Title: Method for marking intraocular lenses using a mask of  opaques forming the configuration of coding characters
Inventor: ZDROK EDWARD Z
IPC: G06K1/12
Filed: 1977-05-09
Granted: 1981-04-21
Abstract: Abstract of the Disclosure Nondestructive marking of plastic artificial intraocular lenses for coding purposes.  Exposure with ultraviolet radiation of portions of a lens surface forming boundaries of desired coding characters or similar exposure only of areas forming the characters themselves produces a differential in refractive index of the material of the lens wherewith detection and reading of the coding may be accomplished before and/or after intraocular implantation.
Patent CA-1085688-A (CA)
Title: Fish-gathering block
Inventor: AOKI KOICHIRO
IPC: E02B3/04
Filed: 1977-06-06
Granted: 1980-09-16
Abstract: FISH-GATHERING BLOCK A fish-gathering block comprising a plurality of supports erected on a base frame and supporting an upper structure.  The current flows through an opening between the lower end of the upper structure and the base frame.  This flowthrough opening prevents the sinking of the fish-gathering block into the sea-bottom by eliminating or materially weakening the ocean-current's excavating action.
Patent CA-1104126-A (CA)
Inventor: BINDERUP ERNST T
IPC: C07D499/10
Filed: 1977-06-09
Granted: 1981-06-30
Abstract: Ry/1t/461 F     Abstract of disclosure The present invention relates to a method for the preparation of a compound of the general formula I, II, or III                  I       II       III     in which -A- stands for a straight or branched, saturated or unsaturated aliphcatic hydrocarbon radical, containing from 1 to 6 carbon atoms, which radical optionally can be substituted with an amino radical; R1 stands for hydrogen, or a lower alkyl radical with from 1 to 4 carbon atoms; R2 stands for hydrogen, a lower allkyl radical with from 1 to 4 carbon atoms, or a monoacyl radical derived from a mono- or dibasic carboxylic acid, sulphuric acid, a sulphonic acid, a sulphinic acid, phosphoric acid,  or a phosphonic acid, and R2 can represent an unsubstituted or substituted carbamoyl, guanyl and guanylcarbamoyl radical; R1 and R2 together with the nitrogen atom can form a monocyclic, saturated ring having from 4 to 8 carbon atoms; furthermore R1 and R2 together can represent a radical of the formula  , in which R3 and R4 each stands for hydrogen, lower alkyl, phenyl or phenyl-lower alkyl, or in which R3 and R4 together with the nitrogen atom form a mono-cyclic, saturated ring having from 4 to 7 carbon atoms; the groupings:       ;      ;      ;     repesent saturated, monocyclic, bicyclic or spirocyclic ring systems, respectively, containing from 4 to 11 carbon atoms in total; P stands for the penicillanic acid radical of the formula IV;                                 IV     and salts of the compounds of the formulae I, II, and III with pharmaceutically acceptable, non-toxic organic and inorganic acids or bases, and easily hydrolyzable pharma-ceutically acceptable, non-toxic esters of the penicillanic acid derivatives of formulae I, II, and III, including diesters of the formula V:                    V     in which X and Y can be the same or different and stand for an acyl radical of one of the compounds of formulae I, II, and III, and Y furthermore can be the acyl radical of other known .beta.-lactam antibiotics, R5 stands for hydrogen, methyl, ethyl, or phenyl, and salts of such esters with pharmaceutically acceptable, non-toxic acids or bases.     The compounds prepared according to the invention have shown increased activity against a series of bacteria which cause infections difficult to combat with the presently available antibiotics.
Patent CA-1051747-A (CA)
Inventor: BUCKO EDWARD P SR
IPC: F16K11/065
Filed: 1977-07-20
Granted: 1979-04-03
Abstract: ABSTRACT OF THE DISCLOSURE           A three-way valve in which the valve disc is in the form of a flexible disc having a diameter slightly in excess of the interior diameter of the valve port so that as the valve is moved between its two valving positions, the valve disc is "flipped" over center so that its outer edge is always deflected towards the incoming fluid.  In this way, the pressure drop through the valve tends to hold the edge of the disc firmly against the interior wall of the chamber. The valve disc is held between two collars retained on the valve stem which serve to maintain the central portion of the valve disc rigid.  The valve stem may be actuated by a solenoid or any other suitable means.
Patent CA-1091322-A (CA)
Inventor: BULLOCK RICHARD H D JR
IPC: B65H19/26
Filed: 1977-09-07
Granted: 1980-12-09
Abstract: APPARATUS FOR CONTROLLING THE ANGULAR ORIENTATION            OF THE END OF A ROLLED WEB                         ABSTRACT    An apparatus for accurately positioning the end of a web being wound on a roll at a predetermined angle of the roll.  An operator sets up in thumbwheel switches a predetermined number representing the additional angular rotation of the roll after the web has been cut at a winding station in order to have-the tail of the roll located at a desired predetermined angle at a second station.  As the roll is wound, a sensor responds to an index that rotates in synchronism with the roll to provide a signal indicating that the roll is oriented at a known reference angle.  A first pulse source generates pulses wherein each pulse represents a known angle of rotation of the roll as the web is being wound on the core.  An electronic counter counts the number of pulses generated by the first pulse source between the occur-rence of the signal indicating that the web has been cut and the reference angle signal generated by the winding station sensor.          The number of pulses counted by the counter is combined with the predetermined number set up in the thumbwheel switches to generate second control number representing the further angular rotation of the roll as measured from the reference angle in order to have the tail oriented at the desired predetermined angle.  A sensor associated with the second location responds to the index to generate a signal indicating that the roll is at the reference angle when it is at the second station.  A second pulse source generates pulses wherein each pulse represents a fixed angle of rotation of the roll at the second station.  A counter counts the number of pulses generated by the second pulse source after the occurrence of a signal from the second station sensor.  When the number in the counter is equal to the second control number, the roll will be prevented from further rotation and the end of the web will be at the desired angle.                             -1a-
Patent CA-1076663-A (CA)
Inventor: HIRSCH GERHARD
IPC: H01P1/213
Filed: 1977-09-16
Granted: 1980-04-29
Abstract: ABSTRACT OF THE DISCLOSURE           A microwave combining filter arrangement including circulators for connecting a plurality of transmitters and receivers to a common antenna wherein the circulators are all three-arm circulators which are connected in cascade and the transmitters and the receivers are alternatingly connected to the circulator chain.
Patent CA-1073378-A (CA)
Title: Mechanism for maintaining contact between the driving side of torque transfering surfaces of a first rotatable member and the driven side of matching torque transfering surfaces of a second rotatable member
Inventor: LOKEN PHILIP I
IPC: F16D1/06
Filed: 1977-09-26
Granted: 1980-03-11
Abstract: TITLE:  A MECHANISM FOR MAINTAINING CONTACT BETWEEN THE   DRIVING SIDE OF TORQUE TRANSFERING SURFACES OF A FIRST ROTATABLE MEMBER AND THE DRIVEN SIDE OF MATCHING TORQUE TRANSFERING SURFACES OF A SECOND ROTATABLE MEMBER                ABSTRACT OF THE DISCLOSURE     A mechanism for maintaining contact between the driving side of spline teeth of a first rotatable member against the driven side of matching spline teeth of a second rotatable member including a coil spring carried by the rotatable second member.  One end of the spring has a first tang formed thereon which engages in a hole formed in the first rotatable member and a second tang formed on the other end of said spring engaged in a hole formed in a washer having teeth formed on the inner edge thereof engaged with the splines of the second rotatable member when the washer is rotated relative to the second rotatable member one or more splines of the second rotatable member from static condition of the spring thereby torsionally loading the spring.  The spring is compressed longitudinally of the second rotatable member as it is loaded and the spring is secured in place upon the second rotatable member by means of a lock ring in engagement with a circumferential groove formed in the splines of the second rotatable member.
Patent CA-1087656-A (CA)
Inventor: POHJOLA JORMA T T
IPC: B62D55/253
Filed: 1977-12-20
Granted: 1980-10-14
Abstract: ABSTRACT OF THE DISCLOSURE:            An elongated endless structure which is adapted to form an endless track of a vehicle or a belt conveyor includes an elongated endless flexible band for extending around and being guided by at least a pair of rotary members which have in at least one position of operation a pair of parallel axes around which transverse end regions of the endless band are adapted to curve, with this endless band having when these axes are parallel a pair of opposed endless side edges which are respectively situated in edge planes which are parallel to each other and normal to the above axes when they are parallel to each other.  This endless band includes at least a pair of longitu-dinally extending elongated endless portions which are sub-stantially non stretchable at least in the longitudinal direc-tion and which are spaced from each other in the transverse direction with respect to the endless band while being symme-trically situated with respect to the above edge planes.  Also, the endless band includes an elongated endless resilient sheet structure for stretching and contracting in response to en-countering and being relieved from forces which tend to stretch this resilient sheet structure, and the resilient sheet structure is also situated symmetrically with respect to the above edge planes when the above axes are parallel to each other.
Patent CA-1106266-A (CA)
Title: Method for removing water-soluble inorganic salts and  ice from heat exchanger surfaces
Inventor: RAMAGE JOHN H A
IPC: F25D21/06
Filed: 1978-01-19
Granted: 1981-08-04
Abstract: ABSTRACT OF THE DISCLOSURE           A method for removing water-soluble inorganic salts and ice from refrigerated heat exchange surfaces by contacting the surfaces with a methanol-water mixture.
Patent CA-1084010-A (CA)
Title: Container for holding four glasses in spaced relation  and blank for forming same
Inventor: CRAVENS HAROLD
IPC: B65D5/485
Filed: 1978-01-24
Granted: 1980-08-19
Abstract: ABSTRACT OF THE DISCLOSURE         A single piece of cardboard stamped to facilitate the folding of same into a container for housing four glasses in spaced relation one from the other.  A cardboard blank is dis-closed with various fold lines provided therein; a sequenced folding operation produces a container consisting of a double thickness bottom, eight triangularly shaped side walls and a top.  Both the top and bottom are provided with four pockets for isolating four glasses one from the other.
Patent CA-1076950-A (CA)
Title: Index cover for knock-out punch
Inventor: ALFIERI ROMEO
IPC: B26F1/44
Filed: 1978-01-26
Granted: 1980-05-06
Abstract: INDEX COVER FOR KNOCK-OUT PUNCH               ABSTRACT OF THE DISCLOSURE          An index cover for a knock-out punch includes a cylindrical body adapted to snugly fit over a die of a knock-out punch.  The cover includes at least a pair of indexing projections extending outwardly from the periphery of the body spaced at approximately 90° intervals to permit accurate centering and locating of the die.  The cover may be injection molded of a thermoplastic material and brightly colored to facilitate its use.
Patent CA-1053463-A (CA)
Inventor: LOEFFLER HERBERT H
IPC: A01M23/24
Filed: 1978-02-21
Granted: 1979-05-01
Abstract: ABSTRACT         An animal trap of the leghold type having low impact force, in which the means for lessening the impact force of the jaws comprises an escapement in which one leg of each jaw is offset inwardly toward the other at one position thereof and a cross bar, through an eye in the spring biasing the jaws towards the closed position, which passes between said one leg so that when the trigger is released the spring moves along the leg to close the jaws until it reaches the offset portion of the legs, where-upon the direction of travel of the legs is momentarily reversed and when the spring passes the offset portion the jaws resume their original direction of travel to close with reduced impact.
Patent CA-1100400-A (CA)
Inventor: LANG JOHN N
IPC: E04D15/04
Filed: 1978-03-28
Granted: 1981-05-05
Abstract: METHOD AND APPARATUS FOR SEALING LAP JOINTS OF FUSIBLE ROOFING SHEETS                     Abstract of the Disclosure A burner that has flat upper and lower walls connected by side walls and a front end wall is provided with a fuel in-let for connection to a fuel source and with an open rear end. A device is connected to one side of the burner for inserting it between the overlapping layers of a lap joint of fusible roofing sheets for sliding it forward along the joint while flame issues from the rear end of the burner to fuse the over-lapping layers together.  Preferably, a roller follows the burner to press the hot layer of the joint together.  A second burner may be provided which is opposite hand to the first burner and which is held in an elevated position as long as the first burner is in operating position.
Patent CA-1095583-A (CA)
Title: Electrical overvoltage surge arrester with varistor heat transfer and sinking means
Inventor: KRESGE JAMES S
IPC: H02H9/00
Filed: 1978-03-29
Granted: 1981-02-10
Abstract: ABSTRACT OF THE DISCLOSURE      The arrester comprises an insulating housing with end terminals and a plurality of varistors inside the housing electrically connected between the terminals.  The baristors are provided individually or in groups with a heat transfer and sinking collar which is electrically insulating and thermally conducting.  The collar may be in thermally conducting contact with the inside wall of the housing to improve heat dissipation to the housing.  The configuration of the collar is much that when it is installed in the housing, there is a passageway through it to provide a longitudinal space in the arrester for accommodating arcing and for the venting of gas in the event of an arrester failure.
Patent CA-1126684-A (CA)
Inventor: KERBY ROBERT C
IPC: C25C1/00
Filed: 1978-04-06
Granted: 1982-06-29
Abstract: ABSTRACT OF THE DISCLOSURE A process for the electrorefining of lead from lead bullion using an aqueous electrolyte containing lead fluosilicate and hydrofluosilicic acid contained in an electrolytic cell, which comprises interposing in the cell between an anode and a cathode one or more electrically unconnected lead bullion bipolar electrodes, allowing electrolysis to proceed to deposit re-fined lead and recovering said refined lead.
Patent CA-1091120-A (CA)
Inventor: MOORE DAVID C
IPC: B42F15/00
Filed: 1978-04-26
Granted: 1980-12-09
Abstract: ABSTRACT OF THE DISCLOSURE        This invention relates to a novel plastic insert for use with hanger bars of file folder suspension systems.  The insert comprises a plate-like disc having a generally inverted U-shape.  The disc has an upper base portion and two downwardly projecting leg portions with the edges of the disc having thickening ridges around both sides of the disc and about the periphery of the U-shape.  A leg projects upwardly from about the centre of the upper base portion and the leg terminates in a crown having pointed projections at each side of the leg.  In one embodiment, the leg comprises two spaced-apart resilient half-legs, each having an inside edge and an outside edge which terminate in a half-crown.  This structure provides a more positive retention of the insert to prevent accidental removal of the insert through use and wear or through manual abuse of the hanger bar.
Patent CA-1072758-A (CA)
Title: Refrigerated display
Inventor: VOGEL ROBERT E
IPC: F25D21/08
Filed: 1978-05-08
Granted: 1980-03-04
Abstract: REFRIGERATED DISPLAY                 ABSTRACT OF THE DISCLOSURE          A multi-curtain, open front refrigerated display case having unique energy saving capacity as a result of the combination of an attached, retractable night curtain specially located between the refrigerated air curtain and the adjacent warmer guard curtain and upon which frost and ice form during closed store hours, with a reverse air defrost flow system that melts the frost and ice from the curtain surface prior to retraction thereof at store opening time.
Patent CA-1085396-A (CA)
Inventor: WEBER ROLF-ORTWIN
IPC: C07D239/22
Filed: 1978-05-31
Granted: 1980-09-09
Abstract: "Improvements relating to hexahydropyrimidine compounds"              A b s t r a c t Compounds of general formula   wherein R1   represents a radical selected from the group consisting of a hydrogen atom, an alkyl group having 1 or 2 carbon atoms, a phenyl and a tolyl group;          R2 to R5 each represent a hydrogen atom or an alkyl group having at most 2 carbon atoms;          R6   represents a radical selected from the group consisting of a hydrogen atom, an anellated benzene nucleus, 1 to 3 identical or different substituents selected from the group consisting of alkoxy groups having from 1 to 3 carbon atoms, halogen atoms, nitro and hydroxy groups, alkyl groups having from 1 to 4 carbon atoms and such alkyl group being substituted by at least one halogen atom;          A    represents a single bond or a C6H5-?H group;          Q    represents a radical selected from the group consisting of a single bond, a straight-chained or branched alkylene group of formula -CnH2n-  in which n is from 2 to 6, at least two carbon atoms being between the two nitrogen atoms to which Q is attached and such an alkylene group being substituted by not more than (n-2) hydroxy groups in a position other than a geminal position relative to the two nitrogen atoms to which Q is attached;   X    is an oxygen or sulphur atom; and Z    is nitrogen or the group -?H   and acid addition salts thereof , a process for their preparation and a pharmaceutical composition containing said compounds.
Patent CA-1053860-A (CA)
Inventor: RAPSON W HOWARD
IPC: D21C3/00
Filed: 1978-06-14
Granted: 1979-05-08
Abstract: ABSTRACT OF THE DISCLOSURE         A pulp mill procedure is described in which chlorine dioxide is formed in admixture with chlorine in a chlorine dioxide generation zone, the chlorine dioxide and chlorine are separated to provide an aqueous solution of chlorine dioxide wherein no more than 10% of the total available chlorine content is provided by chlorine, the aqueous solution of chlorine dioxide is used in a bleach plant to bleach pulp, the chlorine separated from the chlorine dioxide is used to form hydrogen chloride by reaction with hydrogen and hydrogen chloride is used in the chlorine dioxide generation.
Patent CA-1106373-A (CA)
Inventor: NODIFF EDWARD A
IPC: C07D279/18
Filed: 1978-07-27
Granted: 1981-08-04
Abstract: ABSTRACT OF THE DISCLOSURE          A new group of compounds, generically classed as phenothiazinyl sulfides, are described having the formula:                               wherein n is 1 or 2, x and/or y and/or z represent 0, 1 or 2; R1 may be H, alkyl, aryl, alkaryl, acyl, haloacyl and biologically activating aminoalkyl groups known in the medicinal arts, such as -(CH2)3-N(CH3)2,   ,          ,        , and -[2-(1-methyl-2-piperidyl)ethyl]; and R2 and/or R3 and/or R4 and/or R5 and/or R6  and/or R7 represent H, OH, Cl, Br, F, CF3, SN, NO2, CN, COOH, alkyl, alkoxy, sulfamoyl, dimethylsulfamoyl, dimethyl amino, aryl, alkaryl, acyl, aryloxy, methyl sulfonyl, methyl thio, and -S-phenothiazinyl substituents; and as charge-transfer complexes of iodine therewith in which the number of moles of iodine associated with the molecule equals 1.5 (range 0.75 to 3.0) times the number of phenothiazinyl groups in the molecule.          Methods for the preparation of the compounds are de-scribed.  The phenothiazinyl sulfides appear to be active in the same industrial and biological applications as phenothiazine and its corresponding derivatives, and show distinctive activity in various uses and as charge-transfer complexes of novel electro-chemical properties as illustrated, in vitro, in combination with iodine as a cathode material.
Patent CA-1093988-A (CA)
Inventor: CVACHO DANIEL S
IPC: B21D51/26
Filed: 1978-08-29
Granted: 1981-01-20
Abstract: Application of Daniel S. Cvacho Edwin R. Hauflcr Joseph W. Wallace James M. Woolard (Docket No. 6235-GB) for UNITED STATES LETTERS PATENT on CONTAINER CONSTRUCTION      ABSTRACT OF THE DISCLOSURE           A drawn and ironed easily hand-held metallic con-tainer construction is provided and has a central longitudinal axis, a sidewall, and a high-performance bottom wall.  The bottom wall has a first substantially frustoconical portion adjoining the sidewall and extending downwardly and toward the longitudinal axis, a second frustoconical portion inter-connected to the first frustoconical portion and extending upwardly therefrom toward the longitudinal axis.  The bottom wall also has a substantially semi-torroidal inwardly convex bead adjoining the second frustoconical portion and a dished portion adjoining the semi-torroidal bead with the dished portion having a flat central part.  The semi-torroidal bead improves the capability of bottom wall to withstand internal pressure while the dished portion with its flat central part is positioned at a precisely controlled position based on the desired volume of the container construction and enables wear of tooling employed to make the container construction to be taken into account in determining the controlled posi-tion.
Patent CA-1109521-A (CA)
Inventor: KNIGHT MICHAEL H
IPC: H03K17/97
Filed: 1978-09-06
Granted: 1981-09-22
Abstract: METHOD OF PROGRAMMING HALL EFFECT SWITCH AND MAGNET AND APPARATUS FOR PERFORMING SAME                Abstract of Disclosure A method and apparatus for setting the relative magnetic relationship between a Hall Effect switch with a given operat-ing field strength and a permanent magnet to operate the switch and having a magnetic field with a field strength greater than the operating field strength.  This invention can be used for adjusting the toggle point of a combined Hall Effect switch and magnet or the dwell between the operate point and release point of the switch.  This method or apparatus comprises the steps of determining the actual switching point or dwell of a combined Hall Effect switch and operating magnet, which switching point or dwell is controlled by the combination of the field strength of the magnet and the operating field strength of the switch, determining the difference between the actual switching point or dwell and a desired switching point or dwell and then modifying the magnetization of the permanent magnet to shift the actual switching point or dwell toward the desired switching point or dwell.  This method and apparatus can be operated a series of times to bring the point or dwell toward the desired value and the desired switch-ing point or dwell is within a selected range.  The method is used to set the spacing between both the operate point and the release point of the switch to control the dwell of a unit used in the ignition system of an internal combustion engine and which includes a magnet and a Hall Effect switch mounted to-gether.