baber/WOPTO huggingface dataset:
Patent CA-2049790-A1 (CA)
Title: Electro-chemical etch device
Inventor: WHITEHEAD LORNE A
IPC: H05K3/06
Filed: 1991-08-23
Abstract: ELECTRO-CHEMICAL ETCH DEVICE                 Abstract of the Disclosure An  electro-chemical  etch  device  for  selectively removing material from an electrically conductive surface.  At least two electrodes are each at least partially immersed in an electrically conductive fluid and aligned across the surface, proximate to corresponding regions of the surface.  A mechanism is provided to move the surface through the fluid, past the electrodes, transversely to the direction of alignment of the electrodes.   A control mechanism electrically coupled between the electrodes and the surface controls electrical current flow into or out of the fluid at each of the electrodes.   The conductive surface and the conductive fluid are selected such that the rate of material removal at any point on the conductive surface is substantially dependent upon the surface density of electrical current flow into or out of the fluid at that point.
Patent CA-2050180-A1 (CA)
Title: Process and apparatus for forming glass filaments
Inventor: OKUMA KIWAMU
IPC: C03B37/04
Filed: 1991-08-29
Abstract: A process for forming glass filaments by utilizing centrifugal force, in which compressed gas is injected from a position near an interior of a flame port frame of a fiberizing burner toward a throat portion of a discharge port of the burner at an acute angle relative to the direction of discharge of a flame stream from the discharge port, so that the compressed gas is mixed with combustion exhaust gas at an inlet portion of the throat portion, and the mixed gas is injected from the discharge port of the burner in a direction generally parallel to the direction of the generatrix of the outer peripheral surface of the peripheral wall, thereby forming primary filaments into fine secondary filaments.
Patent CA-2050283-A1 (CA)
Title: Polypropylene-polyester graft copolymer and production method thereof
Inventor: SEZUME TADASHI
IPC: C08L67/00
Filed: 1990-04-11
Abstract: ABSTRACT           POLYPROPYLENE-POLYESTER GRAFT COPOLYMER      AND PRODUCTION METHOD THEREOF  The   invention   described   relates   to   an   effective compatibilizing  agent  for  resin  compositions  of a polycarbonate and  a polyolefin wherein  the compatibilizing  agent  is  a  graft copolymer of modified polypropylene containing functional groups reacted with a polyester having an intrinsic viscosity of 0.5 to 1.8 and terminal carboxyl group present in an amount ranging from 10 to 100 meq/Kg.
Patent CA-2052108-A1 (CA)
Title: Rate-based scheduling of multiplexed resources
Inventor: KANAKIA HERMANT R
IPC: G06F13/00
Filed: 1991-09-24
Abstract: Rate-based Scheduling of Multiplexed Resource Abstract Method and apparatus for time-multiplexing a resource among entities which require access to the resource at a rate which is controlled over both an averaging interval and a jitter averaging interval which is shorter than the averaging interval. The technique employs a set of frame queues of work descriptors representing the work to be done by the resource for the entities. Each frame queue is associated with a frame of time slots in which the resource performs work. A resource server provides work descriptors from the head of a given frame queue for the frame associated with the frame queue and then serves the next frame queue for its frame. A queue manager places work descriptors received from the entities at the tails of the frame queues. The work descriptors from a given one of the entities are placed in the frame queues in such fashion that when the resource server takes work descriptors from the heads of the frame queues, it automatically provides the work descriptors for a given entity to the resource at the required controlled rate. The resource server may serve one or more best effort queues in addition to the frame queues. The work descriptors in the best effort queues represent work for entities which do not required a controlled rate of access. The resource server serves a best effort queue when a frame queue is empty but there are time slots remaining in its frame.
Patent CA-2052570-A1 (CA)
Title: Spike driving machine having pushing and percussive spike driving functions
Inventor: COTIC DENNIS J
IPC: E01B29/26
Filed: 1991-10-01
Abstract: A machine for driving spikes into the ties of a railroad track includes a spike driving assembly movably disposed relative to a frame for gripping spikes and driving gripped spikes into the ties, the spike driving assembly having a spike pushing function and a spike percussive function. In tlne pushing function the spike driving assembly pushes the spike a specified distance into the tie by the application of constant pressure, and in the percussive function the driving assembly percussively completes the driving of the spike into the tie. An operator may selectively alternate between the pushing and percussive functions.
Patent CA-2054685-A1 (CA)
Inventor: DROSSBACH HUBERT M
IPC: B26F1/00
Filed: 1990-05-02
Abstract: The invention relates to a process and device for cutting slots (13) in tubular bodies.  the tubular bodies (2) are conveyed intermittently and slotted (13) during the stationary stages.  To this end the cutter (1) has an intermittent conveyor for the tube (2), preferably in the form of at least one conveyor worm (3) with straight and oblique sections (4, 5).  In addition, the cutter (1) has several blade shafts (6) rotatably arranged around the tube (2), the direction and drive of which are matched to the feed rhythm.  With a larger number of blades (7), the blade shafts (6) are divided into two groups and slot the tube (2) in groups and in succession.  The angular position and direction of rotation of the blade shafts (6) are mutually determined so that there is always the same number of blades in the cutting position  and that the moments exerted on the tube (2) by the cutting forces are mutually compensated.
Patent CA-2054756-A1 (CA)
Title: Discharge exciting excimer laser device
Inventor: WATANABE SHUNTARO
IPC: H01S3/038
Filed: 1991-03-04
Abstract: ABSTRACT      An object of the present invention is to increase a laser output and improve the insulating performance.      The device according to the present invention comprises a pair of main discharge electrodes, a dielectric and an auxiliary electrode, the dielectric being formed to be cylindrical and having the side opposed to the main discharge electrodes formed into a flat plate-like portion, the auxiliary electrode being embraced within the dielectric leaving a space and being opposed to one of the main dishcarge electrode with the flat plate-like portion sandwiched therebetween.
Patent CA-2055899-A1 (CA)
Inventor: INABA MASAKI
IPC: B23K26/04
Filed: 1991-11-20
Abstract: In a laser process apparatus, a plurality of holes each having a predetermined shape are formed in a work upon radiation of light from an excimer laser.  The apparatus is provided with a mask, in which a plurality of predetermined small holes are formed in correspondence with the plurality of holes to be formed in the work, and which allows laser light from said excimer laser to pass through said small holes thereof toward the work, a projection optical system for projecting optical images each having a predetermined shape onto the work through the small holes of said mask, a measurement optical system for measuring a work position, and a moving stage for moving the work on the basis of a measurement result form said measurement optical system.
Patent CA-2058387-A1 (CA)
Title: Method and circuit for regenerating the binary bit stream from a ternary signal
Inventor: SCHOLZ WERNER
IPC: H04L1/24
Filed: 1991-12-23
Abstract: Method and circuit for regenerating the binary bit stream from a ternary signal In the application P 40 41 717, an improvement in the signal-to-noise ratio with a bit stream regenerator was achieved using a circuit simplified in comparison with the Viterbi detection. The object of the present invention is to make it possible to employ this circuit for a PR4 signal and to increase the transmission reliability.      Two value sequences can be formed by demultiplexing the scanning values of the ternary PR4 signal and these correspond to signals whose impulses are directed alternately positive and negative with respect to a center line. The two scanning value sequences are processed in the time-division multiplex in a circuit corresponding to the older application (Figs. 9 and 10).      In particular for the bit regeneration in a digital video recorde.
Patent CA-2061341-A1 (CA)
Inventor: BIRD KEVIN C
IPC: F25D25/02
Filed: 1992-02-17
Abstract: A molded refrigerator shelf useful for containment of spills on the shelf includes a planar shelf member with a rim molded around the perimeter edge of the shelf member to form a liquid tight seal between the rim and the shelf member. The molded rim projects above the top surface of the shelf member to form a liquid dam for containing spills to the shelf member. In one form, the shelf is slideably mounted to allow horizontal extension of the shelf and convenient access to the rear portion of the shelf using slide guides molded into the rim along each side of the shelf. The shelf is cantilevered upon support brackets from the rear wall of a refrigerator to allow air flow around the shelf sides. The support brackets are adapted to support the shelf at a plurality of vertical positions.
Patent CA-2061423-A1 (CA)
Title: Composition and use
Inventor: AUSTIN P W
IPC: C01B25/12
Filed: 1992-02-18
Abstract: ABSTRACT COMPOSITION AND USE            A composition comprising (a) a metal salt or complex with an organic compound of the general formula         , and (b) an oxy-phosphorus compound where W may be -SH or an optionally substituted hydrocarbyl group, Q is -OH, hydrogen or optionally substituted hydrocarbyl and Z is hydrogen or optionally substituted hydrocarbyl and Q and Z or Z and W may complete a ring. The compounds are typically metal complexes of thiohydroxamic acids or dithiocarbamates.  The metal is typically zinc.  The compositions exhibit improved aqueous solubility compared with the metal complexes alone, and can be used as industrial biocides, especially fungicides and particularly in paint films and latices.
Patent CA-2061450-A1 (CA)
Title: Bundle foreign object search and retrieval apparatus
Inventor: JENS STEPHEN C
IPC: F28G15/04
Filed: 1992-02-18
Abstract: An apparatus (10) for the location and removal of foreign objects from a difficult to access geometry utilizes a flexible lance (12) formed of individual hose bar segments (14) strung on cables (16) to give a structure that is flexible along its length and fairly rigid in a direction transverse to its length. Extending from working channels (18) of nozzle block (20) of the lance (12) are a pair of multi-prong retrievers (22).      A miniaturized Videoprobe camera (24) is provided in the nozzle block (20) between the two retrievers (22). The retrievers are each connected to an actuating cable (26), which extends through the flexible lance (12) to a manual control (28). The camera (24) is connected by a cable (30) to suitable video processing circuits for generation of images on a video display (32). The cable (30) also houses a fiber optic bundle which conveys light to the area being serviced by the lance (12). The flexible lance (12) extends through a transporter (34), which positions the nozzle block end of the lance (12) opposite a portion of a steam generator or other difficult to access geometry. The transporter (34) moves along a transport rail (36) to move the nozzle block end of the lance (12) into position. The lance (12) is then advanced through the transporter (34) to move the nozzle block end into the difficult to access geometry and retracted to withdraw the nozzle block end from the difficult to access geometry.
Patent CA-2061806-A1 (CA)
Inventor: BRIEN JACQUES
IPC: A47C3/02
Filed: 1992-02-25
Abstract: A rocker mechanism for rocking furniture, such  as  rocking  chairs,  comprises  an  elongated tubular  casing  of  rectangular  cross-section  into which is fixedly mounted a stamped member slidable therein.   The stamped member includes an elongated oblong  base  from which perpendicularly  extends  a short sidewall along the complete periphery thereof. The  stamped  member  further  defines  a  pair  of openings and a pair of curved protrusions at each longitudinal end thereof, whereby ball bearings can be received at each such ends between the sidewall of the stamped member and a respective protrusion thereof.   The central opening of each ball bearing lies opposite a respective opening defined in the stamped member.  Two holes are defined in an aligned relation in the base wall of the stamped member and in one wall of the casing, whereby a pair of screws engaging  respective  aligned holes  of  the  stamped member and of the casing ensure that the member is fixedly secured to the casing.  End caps are snapped onto each end of the casing for completely hiding the  stamped member  located  therein.    The  rocker mechanism  is  mounted  at  the  ends  thereof to  a stationary base of the furniture and to a rocking section   thereof   by  way   of   pins   extending respectively therefrom and engaging ball bearings of the rocker mechanisms.
Patent CA-2062426-A1 (CA)
Title: Construction heater and method of manufacture of heater
Inventor: NIKSIC MARK R
IPC: F24H3/10
Filed: 1992-03-06
Abstract: CONSTRUCTION HEATER AND METHOD OF MANUFACTURE OF HEATER          Abstract of the Disclosure A  gas-fired  construction  heater  which  meets  the applicable ANSI Standard and operates to supply heated air separately from products of combustion.   The products of combustion are permitted to contain no more than a specified percent of carbon monoxide when uncontrolled heater operating conditions are within predetermined ranges.  The uncontrolled operating conditions include variations in input rate and supply voltage.  A combustion chamber produces the products of combustion and has primary and secondary combustion zones. heat  exchanger  receives  the  products  of  combustion  and transfers heat therefrom to fresh air to be heated.   The chamber and the heat exchanger define a tertiary combustion zone.  Inlets supply a separate natural combustion draft to each of the primary and tertiary combustion zones.  The inlets include a first and a third fixed-area inlet for respectively supplying the separate natural drafts to the primary and tertiary combustion zones.   An additional fixed-area inlet supplies forced draft and natural draft to the secondary combustion zone.  The fixed-area of each of these inlets is selected so that the specified percent is not exceeded during operation of the heater when the uncontrolled variation of either the input rate or the  supply voltage is within its respective  predetermined  range.    When  the  uncontrolled variations are outside of the respective predetermined ranges, the heater is turned off.
Patent CA-2062721-A1 (CA)
Title: Adjustable lower limb prosthesis and apparatus and method for the adjustment thereof
Inventor: ARBOGAST JOSEPH
IPC: A61F2/76
Filed: 1990-06-18
Abstract: A lower limb prosthesis as a prosthetic foot (2) and an elongate rod (4) formed substantially of unidirectional long fibers embedded in a thermoplastic matrix, the fibers extending substantially parallel to the length of the rod (4). An adjustment apparatus (1) for the prosthesis includes a pair of pods (10, 12) which may be clamped to the rod (4) and rotated at controlled angles once the thermoplastic rod (4) has been heated to its deformation temperature.
Patent CA-2063553-A1 (CA)
Title: Vehicule on load bearing assembly with an cushion suspension means
Inventor: LABARRE ANDRE
IPC: B60V3/02
Filed: 1990-06-26
Abstract: The invention relates to a load carrier assembly or vehicle with lifting members of the air cushion type. The support-frame (1) of the carrier assembly or vehicle is designed so as to form the fluid supply network for the lifting members (3) as well as their mechanical support connection.
Patent CA-2065591-A1 (CA)
Inventor: BOLEGOH GORDON S
IPC: G01L3/26
Filed: 1992-04-08
Abstract: Abstract A method for determining the efficiency and loading of an electric motor comprises affixing a strain gauge to the drive shaft, calibrating the strain gauge, measuring the input power of the motor, measuring the rotational speed of the drive shaft, transmitting an RF signal from the strain gauge through a rotary antenna to a stationary antenna and calculating the torque in the drive shaft under load.  An apparatus for carrying out said method comprises means for determining the input power of the motor, means for determining the rotational speed of the drive shaft, a strain gauge affixed to the draft shaft coupled to an RF transmitter transmitting a signal through a rotary antenna affixed to the drive shaft, and transmitting means coupled to the stationary antenna for transmitting an RF signal to the rotary antenna and receiving an RF signal from the rotary antenna proportional to the amount of strain experienced by the strain gauge.  The output power of the motor can thus be determined under load conditions without decoupling the motor from the load, and related to the input power to determine the efficiency of the motor.
Patent CA-2067197-A1 (CA)
Title: Cycloalkyl-substituted glutaramide diuretic agents
Inventor: DANILEWICZ JOHN C
IPC: A61P9/00
Filed: 1990-11-09
Abstract: Compounds of formula (I), wherein A completes a 4 to 7 membered carbocyclic ring which may be saturated or mono-unsaturated and which may optionally be fused to a further saturated or unsaturated 5 or 6 membered carbocyclic ring; B is (CH2)m wherein m is an integer of from 1 to 3; each of R and R4 is independently H, C1-C6 alkyl, benzyl or an alternative biolabile ester-forming group; R1 is H or C1-C4 alkyl; R2 is C1-C6 alkyl substituted by C1-C4 alkoxy, aryl or aryloxy and R5 is defined to include a range of alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl, and substituted alkyl groups including in particular methoxyethyl, 2-methoxyethoxymethyl, N2-substituted-S-lysylaminomethyl, R-alanylaminomethyl and (2-amino-2-methyl-propanoyl) aminomethyl; are atriopeptidase inhibitors of utility in the treatment of hypertension, heart failure, renal insufficiency and other disorders.
Patent CA-2067912-A1 (CA)
Title: Pump for an ink supply tank for an inking system in a franking and value-stamping machine
Inventor: KLIETZ LOTHAR
IPC: G07B17/00
Filed: 1992-05-01
Abstract: A pump system is proposed for the ink supply tank of a franking and value-stamping machine, this consisting of two ink tanks that can be set one inside the other, with a guide tube that connects the two tanks. A threaded spindle, driven by an electric motor, serves as a pump, said threaded spindle being supported within the guide tube.
Patent CA-2069959-A1 (CA)
Title: Method and apparatus for separation by flotation in a centrifugal field
Inventor: JAMESON GRAEME J
IPC: B03D1/14
Filed: 1990-10-18
Abstract: The invention provides a method and apparatus for the separation of particles from a particulate suspension. Apparatus for the separation of particles from a particulate suspension comprises a rotating flotation drum (10) with a feed distribution chamber (13).  Particulate suspension feed enters the chamber through delivery pipe (20). The feed passes through holes (21) into the particle collection chamber (22). Air is passed into the particulate suspension through porous inner wall (29) and a froth is generated. The froth and particulate suspension pass into froth cleaning chamber (32). The froth is washed by being sprayed from washwater distribution pipe (47). Froth is removed from the drum by froth scraper (49) through froth removal chute (50). Unfrothed particulate suspension passes through openings (40) into weir chamber (41) and is removed through launder (45).
Patent CA-2071342-A1 (CA)
Title: Protective packaging for cylindrical objects such as paper reels
Inventor: TOWNSEND ALAN B
IPC: B65B/
Filed: 1992-06-16
Abstract: ABSTRACT     A method of packaging a cylindrical object for impact resistance which includes wrapping the object with cellulose wadding.
Patent CA-2074978-A1 (CA)
Title: Position detecting apparatus and method
Inventor: ARIFUKU NAOTO
IPC: G11B17/26
Filed: 1992-07-30
Abstract: ABSTRACT OF THE DISCLOSURE   The present invention relates to a position detecting apparatus for and method of detecting a position of a transport unit, wherein the transport unit is used to pick up a designated disk from a disk container containing a plurality of disks to transport the disk thus picked up to a disk playback unit. The present invention accumulates the number of pulses output by an encoder of the transport unit as the unit moves upward or downward along an encoder channel. The accumulated count is used as a position count for determining the position of the transport unit between the disk container and the playback unit. A second encoder generates a pulse train corresponding to the movement of the transport unit along the second encoder channel. The second encoder channel having a plurality of recesses spaced at a wider pitch than in the encoder channel. A comparison between the level of the pulse train generated by the second encoder and the odd or even number of accumulated pulses output by the encoder indicates whether or not a pulse output has been missed. If it is determined that a pulse output has been missed, the transport unit is moved to a predetermined position, and the position count is reset to a number corresponding to the predetermined position.
Patent CA-2081162-A1 (CA)
Title: Crystalline aluminophosphates and related compounds
Inventor: KRAUSHAAR-CZARNETZKI BETTINA
IPC: C01B37/08
Filed: 1992-10-22
Abstract: A B S T R A C T                 CRYSTALLINE ALUMINOPHOSPHATES    AND RELATED COMPOUNDS      The present invention relates to crystalline aluminophosphates and related compounds having in the as-synthesized anhydrous form an X-ray diffraction pattern containing at least the lines given in Table A.                TABLE A                The invention further relates to a process for preparing the crystalline aluminophosphates and related compounds, using a substituted diamine as an organic template, under specified reaction conditions. The invention further relates to the use of the crystalline aluminophosphates and related compounds in separation processes and processes involving catalytic reactions.
Patent CA-2082219-A1 (CA)
Title: Frequency interrupt continuous transmit active sonar transmission and signal processing technique
Inventor: HOFFMAN SCOTT E
IPC: G01S15/50
Filed: 1992-10-08
Abstract: ABSTRACT OF THE DISCLOSURE      In a time continuous transmit active sonar system the frequency of the transmitted waveform is interrupted at predetermined intervals so that a frequency discontinuity in the transmitted waveform occurs at each interruption.  The starting and ending frequencies at the beginning and end of the interruptions provide indications for properly resolving the range/Doppler ambiguity that is inherent in prior continuous transmit sonar systems.   The transmitted signal may be frequency modulated.          Further, the frequency of the transmitted waveform may be rapidly changed and/or multiple frequency waveforms may be transmitted within the same time interval.  An existing passive sonar detection system may be modified to include an active continuous transmit sonar system whose echo returns may be processed by the passive system, thereby achieving benefits over conventional active pulsed sonar systems.