baber/WOPTO huggingface dataset:
Patent CA-1267524-A (CA)
Inventor: TONCELLI MARCELLO
IPC: B29C67/24
Filed: 1985-07-02
Granted: 1990-04-10
Abstract: ABSTRACT     An apparatus and process for the formation of blocks of marble, stone and the like of size up to 305X125X80 cm from particles of marble, stone and the like of size up to 200 mm by the contemporaneous action of vibration, compression and vacuum.  The particles are combined with a binder in a mixer to obtain a mixture which is mechanically mixed to ensure a homogeneous mixture.  A vacuum is then created in the mixer to obtain a homogeneous mass free of voids and the mixture discharged into a mold in which a vacuum has also been created, the mold being maintained in motion.  The mold is then introduced into a press in which a vacuum has been created.  The mixture is simultaneously compressed and vibrated in the press by subjecting the mixture to the action of pneumatic cylinders impinging upon a beam which is in direct contact with the mixture; while maintaining the vacuum therein whereby the volume is reduced and blocks with no air voids are formed.  The blocks are discharged from the press and the binder allowed to set.
Patent CA-1257685-A (CA)
Inventor: YAMAMOTO ISAMU
IPC: H04N9/64
Filed: 1985-07-31
Granted: 1989-07-18
Abstract: ABSTRACT OF THE DISCLOSURE          The  image  signal  compressor  comprises,  in particular,  a controller for adjusting the compression start potential  in such a way as to decrease it with increasing   highest   peak voltage   level   of   three chrominance  signals  to be  compressed,  in addition to three  first  resistors,  three diodes and  three  second resistors.   Therefore, even if one of three chrominance signals rises excessively high, it is possible to always compress the chrominance signals below a predetermined level without  limitation  by  limiter  circuits,  thus preventing the chrominance signal having an excessively high peak voltage level from being regenerated in white on  a  cathode-ray  tube.    The  signal  compressor  is applicable  to  a  monochrome  image  pickup  tube  or solid-state image pickup elements as well  as a color image  pickup  tube  or  color  solid-state  image  pickup elements.
Patent CA-1273740-A (CA)
Title: Method for preparing epoxy resins of increased  functionality
Inventor: KOENIG RAYMOND A
IPC: C08G59/14
Filed: 1985-08-15
Granted: 1990-09-04
Abstract: ABSTRACT       Epoxy resins of increased functionality are prepared by branching the epoxy resin in the presence of a lithium or cesium compound as a branching catalyst until the desired functionality is obtained and thereafter terminating the branching reaction.  Since the lithium and cesium compounds are not deactivated by the aliphatic chloride typically found in an epoxy resin, the branching reaction can effectively be conducted even at low concentrations of the lithium or cesium compound.  Termination of the branching reaction is conducted by cooling the branching reaction mixture or by the addition of a deactivating agent which stops or effectively reduces the rate of the branching reaction.  Due to the low concentration at which the branching catalyst can be employed, the resulting branched epoxy resins can be prepared without visible turbidity.  The method of the present invention is useful in effectively and economically preparing branched epoxy resins which can be employed in an epoxy resin formulation useful in a wide variety of end-use applications including those applications where performance at higher temperatures and/or better chemical resistance are required such as in electrical laminates, structural adhesives, potting and molding compounds, civil engineering applications, reinforced plastics and protective coatings as well as maintenance paints.     31,461-F
Patent CA-1249566-A (CA)
Inventor: BABCOCK WALTER C
IPC: C23G1/36
Filed: 1985-08-16
Granted: 1989-01-31
Abstract: SELECTIVE AND CONTINUOUS REMOVAL OF METAL-ION        CONTAMINANTS FROM PLATING BATHS                        ABSTRACT A method is disclosed for the selective removal of metal ions from plating solutions comprising contacting the plating solutions with liquid organic complexing agents such as oximes or phosphoric acid esters or microporous material, preferably anisotropic, the microporous material being impregnated with such substances.  The microporous material may be in various forms, including beads, fibers, sheets and gels. Copper, zinc and iron contaminants are effectively removed from nickel-plating solutions.
Patent CA-1249119-A (CA)
Inventor: BLECKMANN GERHARD
IPC: B41F27/12
Filed: 1985-09-06
Granted: 1989-01-24
Abstract: ABSTRACT OF THE DISCLOSURE:          A cover element is used to close the axial or radial gaps which result respectively between the end or lateral edge sections of adjacent gravure printing plates when the latter are clamped on forme cylinders of rotary gravure presses.  The gap is covered with a cover element in which at least that surface region which lies on the end or edge sections of the gravure printing plate and covers the gap is deformable under pressure and can therefore be matched up with the surface contour in the gap region.  The cover element is pressed onto the surface of the gravure printing plate,  the resulting gap cavity is filled with a curable filling compound and, when curing of the filling compound is complete,  the cover element is removed.  It is particularly advantageous to use cover elements which are in the form of hollow bodies and which are filled with a pressure-generating and pressure-transmitting medium.   The pressure exerted on the deformable surface of the cover element which lies on the gravure printing plate, and hence also the surface contour of the closed gap,  can be controlled via the internal pressure in the cavity of the cover element.
Patent CA-1244321-A (CA)
Title: Saw assembly
Inventor: JANSSON KURT
IPC: B27B31/06
Filed: 1985-09-12
Granted: 1988-11-08
Abstract: ABSTRACT        A saw assembly for reducing logs while passing the logs at least once through the assembly and resawing the resultant sawn blocks while re-passing the blocks at least once through the saw assembly. The assembly comprises a pair of chippers (1) and at least one pair of band saws (2) located downstream thereof, and a pair of guide-and-feed devices (9) located between the chippers and the band saws. The components in each of these pairs of assembly units are located opposite one another on different sides of the centre line of the saw line and are adjustable in rela-tion to the centre line. In order to simplify the construc-tion and handling of the saw assembly, the saw assembly includes means (21) which, when reducing passing logs, cause the guide-and-feed devices (9) to synchronously accompany the setting movements of the chippers (1) in relation to the centre of the saw line, and means (23) which, prior to a resawing operation, displace the guide-and-feed devices (9) in relation to the chippers (1) in a direction towards the centre of the saw line, for engage-ment with the sawn block which is to be resawn into planks, this block passing free of the chippers.     (Figure 3)
Patent CA-1244894-A (CA)
Inventor: COLE WILLIAM A
IPC: H03F3/26
Filed: 1985-09-27
Granted: 1988-11-15
Abstract: TITLE:  LOW VOLTAGE CLASS B AMPLIFIER WITH LOW VALUE       DECOUPLING CAPACITORS                 ABSTRACT OF THE DISCLOSURE           A class B push-pull integrated circuit suitable for  low  voltage  operation,  having  two  symmetrical halves.  Each half circuit has first and second opposite conductivity  type  transistors  having  their  collectors connected together to the base of a class B driver trans-istor, the collector of which drives the base of an out-put transistor.  An AC input signal is divided into in-phase and anti-phase components one of which is applied to the base of each first transistor.   An AC feedback loop extends from the collector of the fourth transistor through a voltage divider and level shifter to the base of the second transistor. A DC feedback loop extends from the base of the fourth transistor through a fifth transistor to the base of the second transistor.   De-coupling capacitors extend from the bases of the fifth transistors and through a diode to ground.  The arrange-ment allows use of small decoupling capacitors,  and a current forced through the diode eliminates turn-on de-lay.
Patent CA-1263700-A (CA)
Inventor: WENDT FRANK S
IPC: H02M7/53846
Filed: 1985-11-22
Granted: 1989-12-05
Abstract: Abstract The primary winding of a high leakage inductance power transformer is coupled to a source of unregulated voltage and to a square wave voltage generator that includes first and second alternately conducting output switching transistors.  A voltage controlled oscillator establishes the operating frequency of the voltage generator.  A resonanting capacitor is coupled to a transformer secondary winding that is loosely coupled with the primary winding.  The capacitor forms a series tuned circuit with the leakage inductance between the primary and secondary windings of the transformer.  The operating point of the tuned circuit voltage verses frequency characteristic curve determines the amplitude of the generally sinusodial output voltage across the secondary winding, in accordance with the operating frequency of the square wave voltage generator.  A feedback circuit senses the amplitude of the output voltage and varies the frequency of the voltage controlled oscillator to regulate the output voltage.
Patent CA-1261452-A (CA)
Inventor: DAVIES GRAHAM J
IPC: H01L27/14
Filed: 1985-11-22
Granted: 1989-09-26
Abstract: ABSTRACT OF THE DISCLOSURE     Optoelectronic devices are produced as integrated chips which include elements to control optical signals and electronic elements to control the optical elements. An integrated chip includes optical wave guides with tapered ends to facilitate exit and entry of optical signals.  The tapered ends are produced by photo-electrolytic etch using illumination of graded intensity, e.g. the penumbra of a shadow.
Patent CA-1249171-A (CA)
Inventor: UEMATSU MASARU
IPC: B41J2/505
Filed: 1985-12-23
Granted: 1989-01-24
Abstract: DEVICE FOR DISTRIBUTIVE DOT PRINTING FOR PRINTER ABSTRACT OF THE DISCLOSURE A device for distributive dot printing for a printer including a print medium on which printing by printing head is carried out, a printing head having a plurality of head pins arranged in the vertical direc-tion, a carriage carrying the printing head for trans-porting the printing head in the horizontal direction, and a carriage transportation control unit for causing the printing head to carry out a plurality of printing actions for each row of the head pins. The distributive dot printing is controlled by a head pin selection unit for selecting predetermined head pins from one row of the head pins in each printing action to cause the printing head to perform distributive dot printing.
Patent CA-1245300-A (CA)
Inventor: MORRISSEY JAMES P
IPC: B23K26/067
Filed: 1985-12-30
Granted: 1988-11-22
Abstract: APPARATUS AND METHODS FOR LASER   SEVERING METAL TUBULAR STOCK                ABSTRACT OF THE DISCLOSURE        A system for separating tubular metallic stock into discrete lengths at multiple work stations wherein spindles support and grip tubes and rotate them through a revolution of travel, a laser unit emits a laser beam, a beam bender has a traveling carriage for alternately positioning a reflector to direct the beam toward first one station and then another, and a focusing head receives the beam at each work station.  Each focusing head has a lens assembly for directing the beam out an axial convergent nozzle at the rotating stock and focusing it to remove material at the surface of the stock, and a vortexing stream of combustible gas is directed at the rotating stock to enhance the laser vaporizing action which separates the stock into discrete lengths at each station.
Patent CA-1253893-A (CA)
Inventor: KOMATSUBARA SHOJI
IPC: B65H5/06
Filed: 1986-01-30
Granted: 1989-05-09
Abstract: Abstract:    The invention provides a system for loading sheet materials onto a rotary drum, having a carrier for car-rying sheet material to the drum, means for holding the leading end of the sheet material on the drum, and a presser member for pressing the sheet material onto the rotating drum, so that the sheet material winds around said drum. The system involves a dampening arrangement for dampening the space between the sheet material and the drum surface, which is mirror finished, so as to provide secure contact of the sheet material and the peripheral surface of said drum.
Patent CA-1243844-A (CA)
Inventor: LABATE MICHEAL D
IPC: C21C7/04
Filed: 1986-02-03
Granted: 1988-11-01
Abstract: ABSTRACT OF THE DISCLOSURE    A method for producing exceptionally clean steel wherein desulphurization agents are added to the tap ladle during the first one-third volume of steel tapped and then adding a reduced amount of a deoxidizing agent and then adding slag conditioner agents when one-half of the volume of steel is tapped and then adding an expandable ladle cover compound when substantially two-thirds of the volume of steel is tapped.  Argon is then blown through the steel at a rate sufficient to create a bubbling action and finally a deoxi-dizing agent is added when the final volume of steel has been tapped.
Patent CA-1259078-A (CA)
Inventor: COLOMBET JEAN-FRANCOIS
IPC: C01G23/00
Filed: 1986-02-28
Granted: 1989-09-05
Abstract: A fine powder of neodymium titanate or barium neodymium titanate, a process for its preparation and applications in ceramic compositions. A suspension of particles is formed by mixing a solution of neodymium nitrate or a solution of barium and neodymium nitrates with a sol of titania having a pH of from about 0.8 to 2.5 which contains elementary crystallites of TiO2 having a size of from about 10 to about 100  ANGSTROM  in diameter which are agglomerated into submicron masses of from about 200 to about 1,000  ANGSTROM  in diameter. The suspension obtained is dried, and the dried product is calcined at a temperature between 800 DEG  C. and 1,300 DEG  C., preferably for about 1 to 24 hours. If necessary, the powder obtained is milled. The fine powder obtained has a low fritting temperature and its density after heating for 2 hours at 1,300 DEG  C. is greater than or equal to 95% of the theoretical density of the desired titanate powder.
Patent CA-1273205-A (CA)
Inventor: FACHAT GASTON
IPC: C03B37/06
Filed: 1986-03-14
Granted: 1990-08-28
Abstract: Abstract Apparatus for producing mineral fibres from silicate raw materials, in particular basalt having a modular modulus of viscosity of at least 1.4, by blast drawing To produce basalt wool having a large fibre dia-meter of if desired 10 µm with high output and low bead formation, the exit cross-section of the exit orifices (6) of the distributor tank (5), the vertical distance (vA) between the exit orifices (6) and the blow-in slits (29) for propellant gas, the horizontal width (hB) of the nozzle slot (10) and the vertical length (vL) of the nozzle slot (10) downstream of the blow-in slits (29) are dimensioned to be unusually large for an apparatus for producing rock fibres by blast drawing.  As a result, it is possible to operate at a low melt temperature and a high propellant gas rate combined with a low propellant gas pressure in order, surprisingly, to obtain a coarse-fibered product with low bead formation and high output. In the area of the blow-in slits (29) the airguide lips (28) advantageously form an abruptly terminated slot constriction in order to assist the fiberisation therein and to utilise the subsequent long vertical length (vL) of the nozzle slot (10) in full for fiber drawing without thereby incurring marked bead formation.
Patent CA-1256956-A (CA)
Inventor: NERO LEROY W
IPC: H04N3/19
Filed: 1986-03-18
Granted: 1989-07-04
Abstract: RCA 80,489 ABSTRACT OF THE DISCLOSURE A core gap spacing arrangement for a transformer includes a length of twisted wire.        The twisted pair has a relatively low packing density and is therefore compressible over a large range by using relatively low compression forces, resulting in greater ability to accurately adjust the inductance of the transformer primary winding.
Patent CA-1237534-A (CA)
Inventor: LAO BINNEG Y
IPC: G01R1/073
Filed: 1986-03-24
Granted: 1988-05-31
Abstract: COPLANAR AND STRIPLINE PROBE CARD APPARATUS         ABSTRACT    Coaxial cables each having a cylindrical electrically conductive outer shield and a central conductive wire insulated from the shield are conductively coupled through a connector to coplanar conductors on a dielectric substrate.  The conductors converge toward an opening in the substrate.  The coplanar conductors alternately are ground and signal conductors.  Each coaxial cable shield is conductively coupled to two ground conductors and the cable wire is conductively coupled to the signal conductor between the two ground conductors. At the substrate opening the ground and signal conductors are conductively coupled to planar stripline waveguide ground and signal blades, respectively.  Ground blades between the signal blades are a factor in controlling the signal blade impedance and provide isolation between the signal blades.  Each blade is perpendicular to the substrate and has a pitch angle such that the blade extends through the opening below the substrate.  A wire or needle probe is conductively coupled to the blade distal end.  The needle end is adapted to contact a conductive pad on an IC (integrated circuit) chip.  The coplanar conductors and stripline blades are configured to maintain substantially constant characteristic impedance in the signal conductors and their respective blades and to isolate signals in the signal conductors and blades from one another.
Patent CA-1262048-A (CA)
Inventor: FINLEY JOSEPH H
IPC: C10L5/14
Filed: 1986-03-26
Granted: 1989-10-03
Abstract: Abstract: FORMCOKE HAVING MODIFIED BITUMINOUS BINDER    Formcoke is produced by separately introducing feedstocks of calcined coal particles, bituminous binder and a carbohydrate, preferably an aqueous sugar, into a mixing zone.  The resulting mixture is compacted into shapes, such as briquettes, which are then cured in an oxygen-containing atmosphere and optionally heated to coking temperatures.
Patent CA-1258559-A (CA)
Inventor: SOUTH ALAN
IPC: B60S1/34
Filed: 1986-07-09
Granted: 1989-08-22
Abstract: ABSTRACT         A wiper arm is disclosed, in particular for motor vehicles, comprising a mounting head provided with a cap and com-prising a channel which is rotatably attached to the mounting head.  The cap is provided with two extensions extending substan-tially parallel to the longitudinal axis of the wiper arm, beyond an articulation between the mounting head and the channel, and the extensions of the cap are provided with means for locking the channel in at least two different positions with respect to the mounting head.  The locking means provided on the extensions of the cap preferably consist of two recesses having given dimensions for a first locking position of the channel and of two other recesses, having larger dimensions, for a second position of the channel.
Patent CA-1270370-A (CA)
Inventor: SICK GEORG
IPC: H05B6/26
Filed: 1986-08-26
Granted: 1990-06-19
Abstract: ABSTRACT     INDUCTION FURNACE WITH A FURNACE BOTTOM AND A LID       Induction furnace with a furnace bottom comprising a crucible, an induction winding and a gas-tight casing, also having a lid, for the furnace bottom, which lid has at least one gas connection, a charging valve and a pouring arrangement.  The furnace bottom and lid are connected by a flange joint and tiltably mounted by means of a pivot bearing and a drive about a tipping axis in a furnace stand.  The pivot bearing is secured to the lid, the tipping mechanism engages the lid, and the furnace bottom is separable from the lid by unfastening the flange joint, the lid remaining in the furnace stand.
Patent CA-1257903-A (CA)
Inventor: WAGNER STEVEN D
IPC: G01R23/02
Filed: 1986-09-24
Granted: 1989-07-25
Abstract: ABSTRACT            A frequency measuring circuit measures the period between successive pulses of an input signal and con-verts the pulse count to a measured frequency value. The measured frequency signal is filtered to eliminate spurious noise and a variable threshold is generated by comparing the measured frequency and the filtered frequency.  Only frequency signals qualified by the variable threshold are accepted as valid and provided as the output.
Patent CA-1263207-A (CA)
Inventor: MISRA KALI C
IPC: A46B5/00
Filed: 1986-09-30
Granted: 1989-11-28
Abstract: "TOOTHBRUSH CONSTRUCTION"     ABSTRACT OF THE DISCLOSURE           A toothbrush includes a handle portion and a head portion extending therefrom,  two sets of bristles secured to and extending from one surface of the said head, a front set and a rear set, said front set includ-ing a plurality of rows of bristles comprising an end group and an outer peripheral group, the outer peripheral group inclining avidly towards  said  inner group,  said rear set of bristles having a larger area than said front set of bristles.
Patent CA-1229896-A (CA)
IPC: G08B13/24
Filed: 1986-11-05
Granted: 1987-12-01
Abstract: DETECTION LOGIC AND SIGNAL PROCESSING METHOD AND APPARATUS FOR THEFT DETECTION SYSTEMS                     ABSTRACT Improvements in theft-detection or surveillance systems of the type in which an alternating electromagnetic field is established across a doorway or other portal and is monitored to detect the presence within the field of a marker or tag member comprising a small strip of permalloy or like material of high permeability hidden or otherwise carried on merchandise or other articles and objects to thereby "mark" such merchandise or objects, i.e., to make them readily detectable even though hidden from view.  The improvements reside in signal-processing electronic circuity which increases detection sensitivity and accuracy while at the same time reducing erroneous detection results.  In par-ticular, the circuitry utilizes summing and differencing techniques to improve signal-to-noise ratios and eliminate previously-unsuspected sources of error, and additionally utilizes the concept of frequency spectrum-content ratios as a determinant in distinguishing between apparent detection of true markers from other objects or structures whose response to the alternating interrogation field closely resembles that of the true markers and would normally produce erroneous detection indications.  In doing so, detection signals are processed by use of sampling techniques representative of both marker-presence and marker-absence, comparison of these samples through summing, differencing and peak-integrating techniques, as well as other more particular approaches for reducing or eliminating the effects of error and/or noise signals resulting from or introduced by causes not previously understood or appreciated.
Patent CA-1270311-A (CA)
Inventor: NOREN TORE H
IPC: A47L15/46
Filed: 1987-01-06
Granted: 1990-06-12
Abstract: Abstract of the Disclosure A commercial warewasher is disclosed, in which racks of soiled ware, such as dishes, are consecutively washed through a machine cycle which includes recirculating wash water over the ware followed by a fresh water spray rinse.  A portion of the wash water is drained and a second portion is intentionally retained in the machine during the rinse period after each rack of dishes is washed.  The retained portion is thereby combined with the fresh rinse water to provide a volume of water sufficient for pumped wash recirculation for the next rack without cavitation, while enabling usage of a minimum quantity of rinse water required to provide effective rinsing.  Reduced water consumption, reduced energy to heat the water and reduced chemical usage (detergent), sanitizers and rinse agents) are all possible in amounts and degrees depending upon the type and design of warewasher with which the method and apparatus is employed.