baber/WOPTO huggingface dataset:
Patent CA-2038311-A1 (CA)
Title: Collection and discharge bench
Inventor: DEL FABRO GIORGIO
IPC: B21D45/00
Filed: 1991-03-14
Abstract: ABSTRACT Collection and discharge bench (10) which cooperates with the  outlet  edge  of a bending-shaping machine  (11)  and comprises a stationary tilted surface (12) on which shaped rods or bars (13) leaving the bending-shaping machine (11) slide, and also comprises a conveyor belt  (14) to collect and convey the shaped rods or bars (13), the conveyor belt (14) being positioned at the edge of the stationary surface (12), the angle of inclination (.alpha.) of the stationary surface (12)  being  substantially  the  same  as  the  angle  of inclination  (.alpha.')  of the working platform of the bending-shaping machine (11).
Patent CA-2040275-A1 (CA)
Inventor: ARANYI ERNIE
IPC: A61B17/072
Filed: 1991-04-11
Abstract: An apparatus for substantially simultaneously applying a plurality of two-part absorbable surgical fasteners to body tissue which includes biasing means to pivot the fastener holder into a final open position to release the body tissue.  The biasing means is operable only after the fasteners have been applied.
Patent CA-2040327-A1 (CA)
Inventor: TAKATO KENJI
IPC: H04Q11/04
Filed: 1991-04-12
Abstract: An ISDN (Integrated Services Digital Network) interface circuit is provided which is coupled to a terminal device via a transmission line and a reception line, the transmission line being formed of a pair of first and second wires, and the reception line being formed of a pair of third and fourth wires.  The ISDN interface circuit includes a first resistor and a second resistor connected in series between the first and second wires of the transmission line, and a third resistor and a fourth resistor connected in series between the third and fourth wires of the reception line.  The ISDN interface circuit also includes a D.C. power source connected to one of a first node at which the first resistor and the second resistor are mutually connected and a second node at which the third resistor and the fourth resistor are mutually connected.  One of the first node and the second node other than the above-mentioned one of the first node and the second node connected to the D.C. power source is grounded.
Patent CA-2041352-A1 (CA)
Inventor: BROSIG STEFAN
IPC: G02F1/1337
Filed: 1991-04-26
Abstract: A B S T R A C T            High-resolution, passively controlled liquid crystal display With a view to improving the resolution of passively controlled liquid crystal displays,  the  invention proposes that at least the orientation layer (14.1, 14.2) of one of the two substrate plates (3,4) of the liquid crystal display should be made up of a highly fluorated and preferably perfluorated, ali-phatic polymer, which could be, among others, Teflon AF 1600 marketed by the Dupont Company.            An orientation layer formed in accordance with the invention also makes it possible for organic dye-stuffs to be used as the chromophore layer, because an orientation layer in accordance with the inven-tion only requires heat treatment temperatures not exceeding 250°C. The pretilt angles obtained by means of the orientation layers in accordance with the invention can be set during the manufacturing process and   lie in   the range   between 25° and about 90°.            (Figure)
Patent CA-2043652-A1 (CA)
Inventor: SOSA QUINTANA MIGUEL
IPC: G01R21/00
Filed: 1991-05-31
Abstract: The present invention relates to an autonomous pulse reading and recording system aimed at expediting centralised reading of meters generating or sending out pulses, likewise expediting comsumption billing.     The invention is specifically useful for water, gas or electricity meters, but can likewise be used for telephone or telex meters or those used in any other system generating or sending our pulses.     The invention carries out a wholly automatic serial reading of a number of meters, avoiding possible human errors.     Serial reading of the various meters can be effected from a distance, by radio or merely using a portable read-out processor or normal computer.     Another object of the invention is to allow simple and inexpensive increase of the number of meters to be read out.
Patent CA-2045281-A1 (CA)
Title: Water sampling unit
Inventor: SAWCHUK DAVID L M
IPC: G01N1/12
Filed: 1991-06-21
Abstract: Water sampling equipment and a method of using the same are provided wherein the water sampling equipment comprises a two component metal containment unit containing glass sample bottles, the two components of which are screwable detachable one from the other and which are designed to provide flow through of water from the water stream to be sampled allowing the glass sample bottles to readily be filled.
Patent CA-2048615-A1 (CA)
Inventor: BLOUNT WENDELL G
IPC: A61G5/04
Filed: 1990-03-13
Abstract: 2048615 9010568 PCTABS00002 A riding scooter that may be assembled and disassembled without the use of tools is formed of components including front (82) and rear (160) sections, a steering tiller (27), battery casings (84) and seat (180) which are of a size and weight such that may be handled by a person of modest physical strength. The scooter's front and rear sections have overlapping interengaging parts (123, 17) that are biased together in the operative position by the weight of the sections alone, however the seat assembly acts to reinforce the biased engagement of the front and rear sections of the scooter.
Patent CA-2050365-A1 (CA)
Title: Fire fighter trainer
Inventor: ERNST JAMES J
IPC: A62C37/50
Filed: 1991-08-30
Abstract: ABSTRACT OF THE DISCLOSURE      A fire fighter trainer device and method for use in training fire fighters in the extinguishment of a simulated crashed-air craft fuel-spill fire.  The trainer includes a pit structure, a fuel distribution system, a burner control system connected to a computerized operator control panel, and an extinguishing agent detection system connected to the operator control panel.
Patent CA-2054436-A1 (CA)
Title: Sound barrier
Inventor: SCHMANSKI DONALD W
IPC: E01C1/00
Filed: 1991-10-29
Abstract: ABSTRACT OF DISCLOSURE      A  device   is  provided  for  preventing  the transmission of sound, the device being fabricated of polymer composition and comprising a hollow core member formed of fiber-reinforced thermosetting resin, and at least outer member formed of unreinforced thermoplastic resin which is friction fit to the core member.   The core member and outer members are preferably formed by pultrusion  and  extrusion,  respectively.   Adjacently disposed devices are connected together to form a fence-like barrier through which few or no sound waves are allowed to pass.  This system is advantageously used to prevent   sound   waves   emanating   from   a   large transportation structure such as a highway, railroad track, or airport.
Patent CA-2056021-A1 (CA)
Inventor: ICHIHARA MASAKI
IPC: H04L27/22
Filed: 1991-11-22
Abstract: An analog angle modulated signal  is converted into a digital  signal  within an A/D converter using a  sampling clock having a frequency an integer times higher than the carrier of the angle modulated signal.  The digital signal is delayed by one sampling slot within each of the delay circuits  connected  in  series  to  the  A/D converter.  The output of the A/D converter and that of the fourth delay circuit from the A/D converter are multiplied by -1/2 within the respective digital weighting circuits, respectively, and the multiplied outputs as well as the output of the second delay circuit from the A/D converter are added together to generate an  I component  level  signal.  The output of  the first  delay  circuit  is  multiplied by -1  within another weighting circuit and this multiplied output as well as the output of  the third delay circuit are added together to generate a Q component level signal.
Patent CA-2056452-A1 (CA)
Title: Protein having a transactivating property, vectors expressing this protein, cell lines, and uses thereof
Inventor: HASELTINE WILLIAM A
IPC: C07K16/00
Filed: 1990-06-01
Abstract: A protein having a molecular weight of approximately 15 kD and the ability to activate cell growth in trans is disclosed. This protein is referred to as the rap protein or viral protein R  and produced by an active vpr gene. The active vpr gene and/or its gene product can be used to produce high levels of expression of a desired heterologous gene.
Patent CA-2056575-A1 (CA)
Inventor: LESSLIE DAVID J
IPC: H01H71/02
Filed: 1991-11-28
Abstract: MOLDED CASE CIRCUIT BREAKER MOVABLE CONTACT ARM MOUNTING ARRANGEMENT               ABSTRACT OF THE DISCLOSURE     A molded case circuit breaker having a pair of movable con-tact arms arranged within each pole of a multi-pole arrangement utilizes a shunt clip between the movable contact arms to insure electrical continuity between the contact arms and the contact arm support base.  The movable contact arms and the support base are both accurately positioned within the circuit breaker case by means of an interference-fit between the outside edges of the support base and the interior sidewall surfaces of the circuit breaker case.
Patent CA-2056768-A1 (CA)
Title: Fire detector system and method
Inventor: THUILLARD MARC
IPC: G08B29/18
Filed: 1991-12-03
Abstract: ABSTRACT OF THE DISCLOSURE     A fire detector system including ionization smoke detectors (7) is provided with improved false-alarm protection.  The system includes an ionization chamber (1) with a radioactive source (10), connected in series with a resistor (2) between power supply lines (8, 9), and circuitry (11, 28) for switching the operating voltage of the ionization chamber between a normal operating value (Ut) chosen for maximized detector sensitivity, and an elevated value (Uh) for operation at current saturation.  Comparisons involving the ionization currents through the ionization chamber at the two operating voltages are used not only to recognize a condition of partial shielding of the radio-active source (due to condensation, for example), but also to detect smoke under such conditions.
Patent CA-2056996-A1 (CA)
Title: Arrangement for mounting a tube or member provided with a flange
Inventor: KRANTZ ANDERS
IPC: B01L3/00
Filed: 1990-05-22
Abstract: ABSTRACT An arrangement for mounting a tube (4) provided with a flange in a hole (3) formed in a wall (2) comprises a locking ring (8) with at least three peripherally spaced apart seats (10) adapted to cooperate with a corresponding number of pins (9) which are fixed to the wall and which each have an oblique surface against which a cam surface (13) provided adjacent to the seat (10) on the periphery of the locking ring is arranged to be applied so that, when the locking ring is turned, the locking ring is urged against the wall in order to compress an elastic sealing ring (7) provided between the locking ring and wall.
Patent CA-2058536-A1 (CA)
Title: Radio pager tone alarm circuit for generating variable duty constant audio frequency pulses modulated with unique tone pattern
Inventor: TSUNODA KAZUYUKI
IPC: H04W88/02
Filed: 1991-12-27
Abstract: "Radio Pager Tone Alarm Circuit For Generating Variable Duty Constant Audio Frequency Pulses Modulated With Unique Tone Pattern"     ABSTRACT OF THE DISCLOSURE   In a radio pager, a paging signal containing the pager's own identifier and a particular alert tone pattern is received. On receiving this signal, constant audio-frequency pulses having a duty ratio increasing as a function of time are generated and modulated with the alert tone pattern. The modulated pulses are applied to a loudspeaker for alerting the user with an escalating alert sound.
Patent CA-2059224-A1 (CA)
Title: Valve stack for high voltages
Inventor: JOHANSSON MATS
IPC: H02M7/10
Filed: 1992-01-13
Abstract: The invention relates to a valve stack (2) for high voltages comprising a number of electrically interconnected valve modules (5).  Some of the modules are disposed one above the other.  To prevent a large fire in a valve module (5) from spreading upwards to valve modules (5) positioned above it, fire screens (8) are arranged between valve modules (5) located one above the other.
Patent CA-2059636-A1 (CA)
Title: Pulsating combustors
Inventor: CHATO JOHN D
IPC: F24H1/26
Filed: 1991-06-13
Abstract: ABSTRACT A pulsating combustor includes a combustion chamber having a hollow cylindrical form and a tailpipe having a similar hollow cylindrical form, such that the internal chambers are annular in section.  Air and fuel are admitted to the combustion chamber and pulsating combustion is initiated, with exhaust gases being removed from the tailpipe.  A water jacket is defined both inside and outside the pulsating combustor, with water being moved from one to the other as it is being warmed.  Fuel is preferably admitted along needles or short pipes which are such as to have a natural resonant frequency which is a small number multiple of the natural resonant frequency of the combination of the combustion chamber and the tailpipe.  Preferred frequencies are 440 cps for the combination combustion chamber and tailpipe, and 1320 cps for the fuel delivery needle or pipe.
Patent CA-2059888-A1 (CA)
Inventor: BAUR KENNETH C
IPC: E04B5/48
Filed: 1992-01-23
Abstract: A concrete beam conduit guide includes a hollow open ended prismatic body with a downwardly sloping roof, an upward sloping floor, sidewalls and seal flanges at the open ends of the body.
Patent CA-2061864-A1 (CA)
Inventor: LUSSIER MICHEL
IPC: F16C29/02
Filed: 1992-02-26
Abstract: A device for moving large and heavy apparatuses combining modular rail sections positioned one after the other to form two parallel rails onto which slides a load-carrying plate extending  transversally between  the  rails.    The  upper surface of the rail section has a central row of upwardly projecting  supporting  elements  positioned  at  regular intervals along its length. The undersurface of the carrying plate  has  two  opposite  edge  portions  each  having  two parallel  rows  of  guiding  elements  projecting  down  and positioned at regular intervals along its length.  When the plate is positioned on top of the rails, the two rows of guiding  elements  define  a  guiding  channel  which  may releasably engage the central row of supporting elements projecting up the corresponding rail. The upper layer of each supporting elements  and the  bottom layer of  each guiding elements are made of a friction material, either low friction material to facilitate movement therealong or high friction material to enhance friction.  Also, the central row of supporting elements of the rails are sized to act as retaining means for a hydraulic jack to push the carrying plate.
Patent CA-2065698-A1 (CA)
Inventor: ENGEBRECHT RONALD H
IPC: C09B27/00
Filed: 1992-04-08
Abstract: Named comounds are useful in making dry analytical elements for assaying lithium in serum,  The compounds have the general structure:
Patent CA-2065836-A1 (CA)
Inventor: SIMARD MICHEL
IPC: A23B4/052
Filed: 1992-04-10
Abstract: PRÉCIS DE LA DIVULGATION         Un  four  fumoir  pour  aliments  comporte  un boîtier,  une cavité  interne comportant des supports amovibles  pour  cuisson,  une  résistance  électrique chauffante  surmontée  d'un  cendrier  et  d'une  grille amovibles pour y griller des pilules de bois pressé et d'un couvercle déflecteur longitudinal.  Le boîtier est aussi muni d'un trou de fond ménagé dans le fond du boîtier servant d'entrée d'air frais et d'orifice pour l'évacuation des graisses de cuisson ainsi qu'un tuyau d'échappement des gaz de cuisson ménagé dans le toit dudit boîtier, le diamètre du tuyau d'échappement étant sensiblement plus grand que le diamètre du trou du fond de sorte que lorsqu'en opération les gaz montent dans la cavité interne et s'échappent par le tuyau d'échappement par convection causant ainsi une légère dépressurisation de la cavité interne du four fumoir et une succion sur la porte du four et qu'une partie des liquides de cuisson produits par des aliments tomberont sur le déflecteur chauffé par la résistance électrique et seront vaporisés dans la cavité interne, ces caractéristiques permettant ainsi de maintenir un taux d'humidité convenable pour une cuisson lente.
Patent CA-2066711-A1 (CA)
Inventor: RICH RANDALL W
IPC: H04L27/14
Filed: 1991-07-18
Abstract: A gain control system for controlling signal levels of the signal received by a receiver.  The gain control system is operable to control the signal levels of the signal when the signal is  comprised of either a conventional,  constant envelope signal,  such as an FM signal, or a non-constant   envelope signal, such as a TDMA  composite modulated signal.  The gain control system may be  advantageously  embodied in a  dual-mode radiotelephone  operable to receive both  conventional, FM signals and TDMA,  composite modulated  signals.
Patent CA-2067048-A1 (CA)
Title: Field effect transistor
Inventor: KUWATA NOBUHIRO
IPC: H01L29/80
Filed: 1992-04-24
Abstract: Abstract of the Disclosure According to the invention, an FET includes an epitaxially grown n-type GaInAs channel layer, first and second undoped GaInAs layers formed to sandwich the channel layer, a buffer layer formed on a GaAs substrate to be in contact with one side of the first layer, and a cap layer formed to be in contact with one side of the second layer.  At this time, each of the first and second undoped GaInAs layers must be formed as a graded layer in which the In composition ratio is gradually varied such that the In composition ratio is high on the channel layer side and is low on the buffer layer side and the cap layer side.  If the first and second layers and the channel layer are uniform layers each having a constant In composition ratio, a total film thickness of the three layers constituted by the first layer, the channel layer, and the second layer must be smaller than a critical film thickness at which dislocation is caused by lattice distortion.  In either case, a region in which carrier electrons are present is not entirely located on the channel layer, but a part of the region extends to the undoped GaInAs layers.  For this reason, carrier electrons present in the undoped GaInAs layers are not scattered by dopant atoms, and the carrier electrons are permitted to move at high speed, thereby decreasing the source resistance and increasing the transconductance (gm).  In addition, a high-speed operation with low noise can be achieved.
Patent CA-2068687-A1 (CA)
Title: Fast closure device for linear surgical stapling instrument
Inventor: NOBIS RUDOLPH H
IPC: A61B17/072
Filed: 1992-05-14
Abstract: A fast closure mechanism for a linear surgical stapling device as described. This comprises a double four-bar linkage which operates to both place a retaining pin into an anvil and properly and quickly approximate the staple cartridge to the anvil. Thereafter, a gap-setting screw is used so that the proper gap is sat between the anvil and the cartridge. Firing is accomplished only after the gap is properly set and within the appropriate gap described pre-determined for the instrument. After firing, opening of the stapler may be accomplished with a similar fast opening motion.
Patent CA-2076252-A1 (CA)
Title: Cryptographic protocol for secure communications
Inventor: BELLOVIN STEVEN M
IPC: H04L9/32
Filed: 1992-08-17
Abstract: A cryptographic communication system. The system, which employs a novel combination of public and private key cryptography, allows two parties, who share only a relatively insecure password, to bootstrap a computationally securecryptographic system over an insecure network. The system is secure against active and passive attacks, and has the property that the password is protected againstoff-line "dictionary" attacks. If Alice and Bob are two parties who share the password P one embodiment of the system involves the following steps: (1) Alice generates arandom public key E, encrypts it with P and sends P(E) to Bob; (2) Bob decrypts to get E, encrypts a random secret key R with E and sends E(R) to Alice; (3) Alice decrypts to get R, generates a random challenge CA and sends R (CA) to Bob; (4) Bob decrypts to get CA, generates a random challenge CB and sends R (CA ,CB) to Alice; (5) Alice decrypts to get (CA ,CB), compares the first against the challenge and sends R(CB) to Bob if they are equal; (6) Bob decrypts and compares with theearlier challenge; and (7) Alice and Bob can use R as a shared secret key to protect the session.
Patent CA-2076287-A1 (CA)
Title: Crop sprayer guidance system
Inventor: BOURGEOIS RAYMOND A
IPC: A01C7/08
Filed: 1992-08-18
Abstract: ABSTRACT For marking a field with unseeded rows during seeding, the seed box of a seed drill is equipped with a valve unit mounted inside the box for shutting off seed flow to one of the seed cups during selective passes. A control system for the unit allows the shut-off to be automatic, after a selective number of passes have been completed, or manual as selected by the operator. The unseeded rows are used after germination for guiding a crop sprayer so that there will be no spray overlap and no gaps between the sprayer passes.
Patent CA-2076783-A1 (CA)
Title: System for removing agglomerates from a developed image on a photoreceptor
Inventor: SHEHATA AHMED-MOHSEN T
IPC: G03G21/10
Filed: 1992-08-25
Abstract: An agglomerate removal device for removing unwanted particles from images on a photoreceptor includes vacuum pick off source and baffles that create a controlled aerodynamic drag under the photoreceptor before the images reach a transfer station. Removing the agglomerates improves the quality of images transferred at the transfer station to receiving substrates.
Patent CA-2081449-A1 (CA)
Inventor: FAIMAN ROBERT N JR
IPC: G06F9/45
Filed: 1992-02-18
Abstract: Shoold not appear in this section A compiler framework uses a generic "shell" or control and sequencing mechanism, and a generic back end (where the code generator is target-specific). The generic back end includes the functions of optimization, register and memory allocation, and code generation. The shell may be executed on various host computers, and the code generation function of the back end may be targeted for any of a number of computer architectures. A front end is tailored for each different source language, such as Cobol, Fortran, Pascal, C, C + +, Ada, etc. The front end scans and parses the source code modules, and generates from them an intermediate language ("IL") representation of the programs expressed in the source code. This IL is constructed to represent any of the source code languages in a universal manner, so the interface between the front end and back end is of a standard format, and need not be rewritten for each language-specific front end. The IL representation by the front end is based upon a tuple as the elemental unit, where each tuple represents a single operation to be performed, such as a load, a store, an add, a label, a branch, etc. A data structure is created by the front end for each tuple, with fields for various necessary information. One feature of the invention is a mechanism for representing effects and dependencies in the interface between front end and back end; a tuple has an effect if it writes to memory, and has a dependency if it reads from a location which some other node may write to. A mechanism independent of source language is provided for describing the effects of program execution. Another feature is the use in the optimization part of the compiler of a method for analyzing induction variables, where the improvement is to use the side effects sets used to construct IDEF sets. Another feature is a mechanism for "folding constants" (referred to as K-folding or a KFQLD routine), included as one of the optimizations. A further feature is the type definition mechanism, referred to as the TD module, which provides mechanisms used by the front end and the compiler of the back end in constructing program type information to be incorporated in an object module for use by a linker or debugger. Another feature is a method for doing code generation using code templates in a multipass manner.