baber/WOPTO huggingface dataset:
Patent CA-1240820-A (CA)
Inventor: GRIMES ROGER
IPC: B22D11/049
Filed: 1985-01-04
Granted: 1988-08-23
Abstract: Abstract Casting Light Metals A method of and an apparatus for vertical, semi-continuous direct chill casting of light metal fabricating ingots of particularly, though not exclusively, lithium containing aluminium and magnesium alloys, through an open mould into a pit, comprising commencing the casting without a pool of water within the pit,  supplying  cooling water  to  the emergent ingot at a predetermined rate and continuously removing water from the pit as casting continues at a rate sufficient to ensure that no build up of a pool of water in  the  pit  occurs,  whereby  the  risk  of  violent  and damaging explosion is further reduced.
Patent CA-1230805-A (CA)
Inventor: TAKASE IWAO
IPC: G21C3/06
Filed: 1985-01-28
Granted: 1987-12-29
Abstract: ABSTRACT OF THE DISCLOSURE      A method of producing cladding tube comprises a step of temperature-gradient annealing in which the inner surface of the tube is heated to a temperature higher than the recrystallization temperature thereof, while the outer surface of the tube is cooled, after the tube has been hot-extruded.  The temperature-gradient annealing is effected while a temperature gradient is maintained between the inner surface and the outer surface of the cladding tube.  While keeping the inner surface at a temperature higher than the recrystallization temperature, and the outer surface at a temperature lower than the recrystallization temperature.  The cladding tube is obtained with the outer surface which has an excellent resistance to nodular corrosion and a soft inner surface which has an excellent resistance to stress corrosion cracking.
Patent CA-1253307-A (CA)
Inventor: VAN DER MOLEN THEODORUS J
IPC: B29C48/10
Filed: 1985-02-05
Granted: 1989-05-02
Abstract: ABSTRACT           Blown film on the basis of low density polyethylene is pre-pared by extruding the molten polymer at a die gap of at least 1 mm at melt temperatures at the die gap of below 160 °C. Films that have been prepared this way, have good mechanical and optical properties.
Patent CA-1261298-A (CA)
Inventor: TOOMEY JOSEPH E JR
IPC: C07D213/38
Filed: 1985-02-11
Granted: 1989-09-26
Abstract: Abstract of the Disclosure Improved electrochemical reductions of cyanopyridine bases in which the reduction is performed by electrolysis in an ion-exchange membrane-divided flow cell at a lead or alloyed lead cathode and in an aqueous or partly aqueous medium comprising sulfuric acid in at least a 1:1 mole ratio with the cyanopyridine base.  In the case of 2- and 3- isomers, an iron salt is also added to the catholyte as a catalyst.  In the case of the 4- isomer, an efficient, semi-continuous batch process is reported.  With all bases, significant advantages of a commercial and industrial nature are reported over prior art static, beaker cell technology.
Patent CA-1231001-A (CA)
Inventor: WATTS JOHN D JR
IPC: B41F15/38
Filed: 1985-02-20
Granted: 1988-01-05
Abstract: Abstract of the Disclosure A rotary screen printing device for delivering coating fluid from the inside of a print cylinder through patterned openings onto an adjacent advancing substrate has a print cylinder support frame, a ring-shaped major idler having its periphery retained in rolling contact supported by several minor idlers near each side member of the supported frame for rotation about the print cylinder's axis, a plurality of swiveling hooked torque rods, slidably mounted for axial movement at spaced intervals around each major idler, having a hooked inner end facing the opposite major idler, and a resilient mounting urging the hooked end tpward its supporting major idler, and a pair of end rings, each secured in telescoped relationship inside one end of the print cylinder, with notches being formed at spaced intervals in the inner periphery of each end ring for alignment with the swiveling hooked torque rods of a major idler.
Patent CA-1230908-A (CA)
Inventor: HICKEY JOHN S
IPC: H01H37/76
Filed: 1985-03-15
Granted: 1987-12-29
Abstract: INDUCTIVELY COMPENSATED TRIGGER CIRCUIT FOR A           CHEMICALLY AUGMENTED FUSE           ABSTRACT OF THE DISCLOSURE         An inductively compensated trigger conductor for use in a chemically augmented fuse, of the type in which current flow through the fuse generates a magnetic field, employs at least one loop of electrically conductive material to inductively couple the trigger conductor to the magnetic field of the fuse.  This inductive coupling increases the electrical inductance of the trigger circuit, and allows the fuse to be constructed so that the current division between the fuse conductor and the trigger conductor is constantly proportional, or at least more nearly so.  When employed in a fuse which also includes a non-magnetic fuse support structure, a trigger device, and a means for chemically augmenting the separation of the fuse conductor into more than one segment during current interruption, the trigger circuit of this invention provides triggering action which is responsive only to the level of current flowing through the fuse, and not to a high rate of rise of current.
Patent CA-1237813-A (CA)
Inventor: NAKATSUYAMA TAKASHI
IPC: G11B19/02
Filed: 1985-04-25
Granted: 1988-06-07
Abstract: ABSTRACT          Start-control  method  and  circuit  for an optical  disc  play-back  system  according  to  this invention can allow the starting current of the system to be reduced considerably.   The method includes the steps of loading the disc onto a disc drive motor, then finding the focal position of the lens, then powerfully energizing the disc drive motor for a certain period of time  so  as  to  start  the  disc  spinning  and  then energizing the focus- and the tracking-servo circuits during inertial rotation of the disc drive motor.  The circuit includes a disc-drive-motor servo switch capable of switching the power supply for the disc drive motor from  the  kick  circuit  to  the  disc-drive-motor  servo circuit, a focus servo switch capable of switching the power  supply for the focus servomotor from the focus search  circuit  to the  focus  servo  circuit,  and  a tracking servo switch capable of initiating power supply to the tracking servomotor.
Patent CA-1242812-A (CA)
Inventor: IHARA KEIICHI
IPC: H05K13/04
Filed: 1985-06-06
Granted: 1988-10-04
Abstract: APPARATUS FOR AUTOMATICALLY FITTEDLY MOUNTING SPECIAL-TYPE CHIPS ON SUBSTRATE            ABSTRACT OF THE DISCLOSURE        An apparatus for automatically mounting special-type chips on a substrate is disclosed which is capable of individually and successively fittedly mounting special-type chips on a substrate at a high speed.  The apparatus comprises a chip feed and removing mechanism for individually and successively feeding chips to a chip fitting mechanism, the chip fitting mechanism including a single mounting head and adapted to accurately position terminal pins of a chip with respect to a substrate, and a chip terminal clinching mechanism for cutting and bending the terminal pins to securely fittedly mount the chip on the substrate.
Patent CA-1263323-A (CA)
Inventor: COUTURE GERARD
IPC: F16D43/24
Filed: 1985-06-06
Granted: 1989-11-28
Abstract: ABSTRACT OF THE DISCLOSURE         There is disclosed a clutch which will release under overload and will reset automatically upon speed reduction of the driving element.  Two radial bars are fixed to the driven shaft; a driving wheel is rotatably mounted on the driven shaft adjacent the bars, and pivotally carries a pair of diametrically-opposite elongated pawls biased by tension springs to a radially-inwardly-extending position within the driving wheel to engage the respective arms, whereby the driv-ing wheel drives the driven shaft.  Under overload, the arms cause outward pivotal movement of the pawls against the bias of the springs, whereby the arms are cleared by the pawls, which remain in outwardly-pivoted position under centrifugal force until speed reduction of the driving wheel.  In a preferred embodiment, the center of gravity of the pawls, in their bar-engaging position, lies on the upstream side of a straight line passing through the shaft axis and the pawl pivotal axes, where-by the centrifugal force exerted on the pawls assists the coil springs to keep the pawls in bar-engaging position and there-fore permitting the use of springs with a smaller tension force, resulting in a smoother resetting of the clutch.
Patent CA-1239177-A (CA)
Inventor: GERMANO CARMEN P
IPC: H01H47/22
Filed: 1985-06-07
Granted: 1988-07-12
Abstract: PIEZOELECTRIC DRIVEN DIRECT CURRENT LATCHING RELAY           ABSTRACT OF THE DISCLOSURE           A direct current latching relay comprised of bender-type piezoelectric drive members each of which is a three terminal member formed of two piezoelectric plate elements separated by a conductive plane.  Each piezoelectric plate element is separately electrically charged with an input pulsed d.c. switching signal of the same polarity as the pre-poling field previously induced in the piezoelectric plate element.  By electrically charging one of the piezoelectric plate elements with a switching signal electric field of the same polarity as the pre-poling field, the bender-type drive members are member made to bend in one direction.  Alternatively, by charging the opposite plate of the drive member again with a direct current electric charging field of the same polarity as the pre-poling field previously induced in the plate, the bender-type drive member can be caused to bend in the opposite direction. The bender-type piezoelectric drive member when bent egages and drives a push rod which actuates a snap-action switching contact mechanism from either an open circuit state or to a closed circuit state or vice versa.  Pulsed direct current charging fields are applied to the piezoelectric plate element of the bender-type drive member and a high resistance discharge resistor is connected across each of the piezolelctric plate members so as to automatically discharge the plate members shortly after their excitation.  As a result, no long term depolarization of the piezoelectric plate members occurs and because of the pulsed short term nature of the charging fields, no long term deformation (creep) develops in the plate elements over extended periods of usage of the relay.
Patent CA-1258384-A (CA)
Inventor: EVANS JOHN M
IPC: A61B5/1459
Filed: 1985-06-25
Granted: 1989-08-15
Abstract: ABSTRACT OF THE DISCLOSURE An apparatus for in-vivo measurement of blood oxygen levels in a patient is described.  The apparatus comprises an elongate probe which is adapted to pass into the oesophagus of a patient, means associated with the probe to illuminate the internal surface of the oesophagus, means for observing light reflected from the internal surface of the oesophagus, and means for determining from the reflected light signal the degree of oxygenation of blood in the internal surface of the oesophagus.
Patent CA-1253079-A (CA)
Inventor: GIUDICE VITTORIO
IPC: A61K9/52
Filed: 1985-09-12
Granted: 1989-04-25
Abstract: ABSTRACT Process for preparation of a solid administration form for oral use based on nifedipine with controlled release of the active substance, characterized by the fact that a mixture of nifedipine crystals having a specific surface area between 0.1 and 0.4 m2/9 is prepared, said mixture of crystals is blended with an equal amount by weight of auxiliary vehicle substances, and the resulting mixture so obtained is applied on spheroids of inert substances, by means of suitable binders, in coating pans.
Patent CA-1237975-A (CA)
Inventor: DOHRENDORF HANS A
IPC: B29C65/74
Filed: 1985-10-02
Granted: 1988-06-14
Abstract: Abstract of the Disclosure A vertical packaging machine having a supply of film folded upon itself, the film passing between two jaws pivoted at their lower ends.  One of the jaws has a thin, L-shaped knife which is resistance-heated.          The jaws clamp the film and the knife cuts and seals the film transversely and vertically along the free edges of the film to enclose an article within the package.
Patent CA-1236688-A (CA)
Inventor: MEYERS ARNOLD G
IPC: F27D1/00
Filed: 1985-10-16
Granted: 1988-05-17
Abstract: ABSTRACT         An oven for heat treating, curing, stress relieving or otherwise treating objects within the oven has side walls that can be moved into contact and out of contact with side edges of a movable floor.  All interior surfaces of the oven are insulated and, when the floor is located in the oven, the side walls can be moved so that the insulation on the side walls forms a sealed relationship with the insulation along the adjacent side edges of the floor.  A door of the oven can then be closed.  When the door is opened, the side walls can be moved out of contact with the floor and the floor can be removed.  Preferably, the side walls are moved by the operation of pneumatic cylinders.          One advantage of the oven is that a good seal can be obtained between the side walls and the floor even when the insulation becomes worn.
Patent CA-1274972-A (CA)
Inventor: FUKUROI TAKEO
IPC: A44B13/00
Filed: 1985-10-18
Granted: 1990-10-09
Abstract: ABSTRACT OF THE DISCLOSURE A capped eyelet, for attachment of a snap fastener member to a garment fabric, comprises an eyelet body including a shank with a flange, a cap covering over the flange and secured to a periphery thereof, and at least one punched buffer wing projecting from the flange and having at least one rib.  The buffer wing is resiliently deformable to absorb an endwise force applied to the shank when the eyelet is axially compressed for being joined with a snap fastener member.  At that time the rib is engageable with the upper end portion of the shank to assist in absorbing the riveting force.  As a result, the cap is not subject to marking with scars at its outer surface.
Patent CA-1241777-A (CA)
Inventor: YOSHIMOTO MAKOTO
IPC: H04L1/24
Filed: 1985-10-22
Granted: 1988-09-06
Abstract: Abstract of the Disclosure A channel quality monitoring apparatus provided in terminal equipment of digital radio communication system comprises a syndrome generator circuit responsive to a digital multiplexed signal of a receiving signal, a signal converter circuit for converting an error-corrected digital multiplexed signal into a digital multiplexed signal with which a predetermined parity detection is possible, a parity detector circuit for effecting a parity detection of the digital multiplexed signal from the signal converter circuit, and computing circuitry configured as an error rate detector circuit responsive to outputs from the syndrome generator means and the parity detector circuit.  When occurrence of code error detected on the basis of the syndrome continues for the duration more than a predetermined time period, the computing circuitry is operative to compute an error rate of the receiving digital multiplexed signal on the basis of the syndrome.  In contrast, when occurrence of code error detected continues for the duration equal to or less than the predetermined time period, the computing circuitry is operative to compute an error rate of the receiving digital multiplexed signal on the basis of the output from the parity detector circuit.  Thus, this apparatus provides an improved detection accuracy of a channel error rate in the equipment of receiving and demodulating system.
Patent CA-1241927-A (CA)
Inventor: LISET MAGNA O
IPC: B65G41/00
Filed: 1985-11-05
Granted: 1988-09-13
Abstract: ABSTRACT OF THE DISCLOSURE    A novel mobile elevator for particulate material is provided herein.  The elevator includes an elongate conveyor tube having an inlet port and an outlet port and conveyor means for conveying particulate material through the tube.  Motor means are provided for operating such conveyor means.  First and second elevation means are provided which are independently operable selectively to incline the conveyor tube relative to a ground surface.  A freestanding wheel support frame is provided for the conveyor tube, the frame including a transversely-extending axle located generally centrally of the conveyor tube and having a ground-engaging wheel at each end.  The frame further includes another wheel located intermediate the axle and the inlet port.  Means are provided selectively to move the center of mass of the conveyor tube longitudinally of the support frame.  Finally, drive means are provided for selectively independently driving the ground-engaging wheels at the ends of the axle.
Patent CA-1265301-A (CA)
Inventor: GANDREZ JEAN-FRANCOIS
IPC: A61F13/15
Filed: 1985-11-08
Granted: 1990-02-06
Abstract: ABSTRACT OF THE DISCLOSURE This disposable napkin-knickers has a generally rectangular shape and includes a flexible and impermeable support sheet, an absorbent wad dis-posed on a support sheet and a flexible and permeable upper sheet covering the absorbent wad.  It further comprises in combination:  two distinct elastic systems extending longitudinally along at least a part of the length of the napkin, the first system being disposed along the edge of the wad on each side of the latter so as to impart thereto an anatomical shape, and the second system being disposed along the edge of the napkin on each side of the latter so as to ensure the fluidtightness thereof when it is carried by a user.  A region of each làteral edge of the napkin outside the wad, intermediate between the edge of the latter and the edge of the napkin is preferably fixed to the Latter so as to decrease the width of the napkin at least in the region of the crotch of a user.     F. 8417219
Patent CA-1253086-A (CA)
Inventor: SWARTZ HENRY D
IPC: B41J29/08
Filed: 1985-11-13
Granted: 1989-04-25
Abstract: ABSTRACT OF THE DISCLOSURE An acoustic enclosure (10) has interconnected sound re-ducing sheets forming a substantially rectangular structure which is configured to house a computer printer or other noise generating article.  Each side (12, 14) sheet is a multiple strata sheet having an outer thin stratum (26), a multiple channel intermediate thermoplastic stratum (28) and an inner open celled acoustic ma-terial stratum (30).  The rear and bottom sheets (16, 18) are multiple stratum sheets, having  a multiple channel intermediate thermpolastic stratum (46) which is sandwiched between inner and outer polyurethane foam strata (44, 48).  An adhesive material (42) is provided for bonding the outer stratum to the intermediate stratum and the intermediate stratum to the inner stratum for each of the sheets.  An angle member (62) affixed to the intermediate stratum is provided for joining adjacent sheets of the enclosure. A rigid thermpolastic hinged sheet (22) having a uniform non-pinched bend (52) is provided as a window for the enclosure. Method and apparatus for producing such bends comprise use of sequentially initiated heating of the bottom (wide band continuous band heating to softening point) and then top of the sheet (narrow band focussed heating to a narrow bend) to make the sheet so bend-able.  The bent sheet serves as a supplemental panel extension to afford view zones of the enclosure.  The various (side type, rear type) panels, with and without such sheet extensions, are also usable in the non-enclosing uses, including use as walls or room-dividers.  Electrical wiring and fixtures and panel surface mounted heaters can be accommodated by the allowable constructions of the panels. The thin outer stratum can be replaced by an adhesive.
Patent CA-1265542-A (CA)
Inventor: MOSER ERICH
IPC: B41J11/58
Filed: 1986-01-23
Granted: 1990-02-06
Abstract: ABSTRACT          A document processing device is provided which is front accessible for use and service and is composed of a paper supply space for cross-perforated continous-form paper webs, a printing mechanism including a paper feed device, platen and print head, a separator device for producing single documents and an output and/or deposit stacker for single documents.  The paper feed device and the paper guidance elements proceeding along the paper web are arranged such that the paper supply space closable by means of a removable housing cover as well as the output and/or deposit stacker are accessible from the front side.  The paper supply space and the printing mechanism are located in a lower cabinet rack part whereas the paper guidance elements and devices including the output and/or deposit stacker which follow downstream of the printing mechanism are located in an upper cabinet rack part pivotably secured to the lower cabinet rack part.
Patent CA-1269891-A (CA)
Inventor: WINKIN JUSTIN P
IPC: B65D88/28
Filed: 1986-01-30
Granted: 1990-06-05
Abstract: SOLID FUEL TRANSFER AND SEAL SYSTEM                      Abstract of the Disclosure A solid fuel transfer and seal system in which a seal chamber receives a fuel material and a valve is provided for opening and closing a discharge opening in the seal chamber.          A seal plug unit moves across the chamber to push the fuel material contained in said chamber towards the discharge opening.  The valve is opened in response to a predetermined amount of movement of the seal plug unit towards the discharge opening and the seal plug unit seals the inlet opening from the discharge opening after opening of the valve.
Patent CA-1266427-A (CA)
Inventor: MATTEUZZI CLAUDIO
IPC: B29D30/68
Filed: 1986-02-28
Granted: 1990-03-06
Abstract: MACHINE FOR AUTOMATICALLY           ENGRAVING THE GROOVE IN                             TIRE TREADS    ABSTRACT OF THE DISCLOSURE         A machine for automatically engraving the groove in tire treads provided with a first rotary tire-carrying shaft and with a second tool-holding shaft axially movable in a reciprocating manner parallelly to the first shaft, via appropriate motion transmitting means.         According to the invention said motion transmitting means comprises an interchangeable gear cascade actuating a a cam; a cam follower driven by the cam and fastened to a rack; a gear wheel meshing with the rack and carrying a rocker along one of its diameters; and a connecting rod pivoted on the second shaft and on a slider which is engageable along the rocker in an adjustable manner.
Patent CA-1270944-A (CA)
Inventor: TAKAHASHI TOSHIHIKO
IPC: G11B15/18
Filed: 1986-03-24
Granted: 1990-06-26
Abstract: APPARATUS FOR REPRODUCING A DIGITAL SIGNAL     ABSTRACT OF THE DISCLOSURE         An apparatus for reproducing digital signals recorded on a magnetic or other recording tape includes a servo mechanism which is effective, when the tape is transported at a high speed in either a fast-forward or rewind mode, to maintain a relative speed between the tape and a rotary head that is substantially the same as that in the normal playback mode.  Moreover, in the rewind mode, the rotary head is rotated in the direction opposite to that in the normal playback mode, while the absolute value of the relative speed remains the same as that in the normal playback mode.  Further, the digital signals reproduced by the rotary head in the rewind mode have their sequential order reversed.
Patent CA-1269533-A (CA)
Inventor: WILLIS DONALD W
IPC: A01M25/00
Filed: 1986-05-06
Granted: 1990-05-29
Abstract: Abstract A  rodent poison bait station including a rectangular hous-ing forming an enclosure cooperating  with bait retaining  panels to form a pair of bait containing compartments within the housing laterally of a pair of generally axially  aligned rodent entrance holes. The bait retainers  are offset from the entrance holes and maintained spaced-apart by bait confining  rails extending there-between which prevent bait being moved toward  the entrance holes from the bait compartments. Access to  the  bait  compartments by the rodent is achieved by rodent destruction of a grid covering a window in a panel forming a part of the bait compartment.