baber/WOPTO huggingface dataset:
Patent CA-1235921-A (CA)
Inventor: LEE YUAN-HO
IPC: E04G11/08
Filed: 1985-02-13
Granted: 1988-05-03
Abstract: ABSTRACT           An inner form set-up for use in forming a multi-sided upright concrete wall with inner and outer form set-ups.  There is provided an arrangement for stripping the inner form set-ups which are formed with a multisided form wall.  The arrangement comprises at least one wedge device dividing at least one side of the form wall into two portions and wedged in between the two portions in a first direction during casting.  The wedge device is moved in a second direction opposite to the first direction after cast-ing whereby to move the two portions closer to one another so that the inner form set-up contracts and is therefore entirely spaced from the cast concrete.
Patent CA-1267435-A (CA)
Inventor: THOERNBLOM JAN
IPC: H05H1/50
Filed: 1985-03-25
Granted: 1990-04-03
Abstract: ABSTRACT          TITLE:  "A METHOD AND MEANS FOR USE IN THE INSTALLATION OF          PLASMA GENERATORS IN SHAFT FURNACES"            The invention relates to a method and a means for faciliting the replacement of plasma generators and for minimizing the heat losses during installation of a plasma generator in a shaft furnace, particularly for plasma generators of the type comprising cylindrical electrodes between which an electric arc is generated, the bases of the arc being caused to rotate by means of electric field coils arranged around said electrodes. To achieve this at least the field coil (7) surrounding the electrode nearest to the nose (12) of the plasma generator, together with its connections for coolant and electricity, is permanently secured in the wall (1) of the shaft furnace in conjunction with the opening (6) for insertion of the plasma generator (11) into the shaft furnace.
Patent CA-1234202-A (CA)
Inventor: BAKER WILLIAM B
IPC: F04B49/20
Filed: 1985-04-16
Granted: 1988-03-15
Abstract: An Improved Pump Unit For Sampling Air ABSTRACT         An improved pump unit for sampling air that operates at a constant air flow rate in the range of 5-5000 cc/min, having a filter for removing particles or vapors from the air stream, an air accumulator, a variable drive pump optionally with a bypass, an electric motor for driving the pump, an optional air reservoir, an orifice which creates a pressure drop in the air stream, an optional bypass for the orifice and a pressure  switch connected in parallel to the orifice which monitors a change in the air pressure drop; the improvement in the pump is the use of a digital circuit electrically connected to the pressure switch and a closed loop control means electrically connected to the digital circuit and motor; a digital signal determines the open or closed position of the switch and the control means and allows current to flow or not flow to the motor driving the air pump to provide a constant flow of air through the unit: the pump unit is worn by a worker or is placed in a work area and at the termination of a period of time, such as a work day. the filter is removed and the contents collected are analyzed by conventional techniques such as gas chromatography to determine a level of exposure of the individual or the level of exposure of people working in that area.
Patent CA-1248522-A (CA)
Inventor: BOGAN RICHARD T
IPC: C09D101/10
Filed: 1985-04-23
Granted: 1989-01-10
Abstract: Carboxylated Cellulose Ester and Manufacture Thereof Abstract The present invention provides a novel cellulosic material and a process for preparing the same.  The cellulosic material is a carboxylated cellulose ester material having an acid number of at least about 5, an inherent viscosity of from about 0.01 to about 1.00 and wherein the anhydroglucose units thereof have ring substituents comprising by weight based on total polymer weight, of from about 0.05 to about 20% hydroxyl groups, from about 0.5 to about 44% acetyl groups, from 0 to about 54% butyryl groups, from 0 to about 47% propionyl groups, from about 0.4 to about 4.0% total carboxyl groups wherein from about 20% to about 100% of these carboxyl groups are non-saponifiable backbone, and wherein the material has a lactone level of from about 4.52 x 10-5 to about 6.13 x 10-4.  The carboxylated cellulose esters of the present invention are prepared by reacting a cellulose ester with ozone at a temperature of about 25 to 80°C for a period of time sufficient to yield the carboxylated cellulose ester product.  Also disclosed are end use applications for the carboxylated cellulose esters, such as metal coatings, pigment dispersions, wood coatings, inks, etc.
Patent CA-1232987-A (CA)
Inventor: LASSAUX JEAN
IPC: H04B3/23
Filed: 1985-05-07
Granted: 1988-02-16
Abstract: PHF 84531                 35                      25.4.1985 ABSTRACT: Echo canceller and centre clipper control arrangement.     This arrangement is intended to control the operation of the coefficients adjusting circuit (12) of an echo canceller and of the operation of a centre clip-per (15) inserted in the send path (7) of a four-wire circuit at the output of the subtractor (13) of the echo canceller for suppressing there, when it is set to its active state, the signals whose amplitude is lower than or equal to a clipping threshold. The control arrange-ment operates on the basis of the signal in the receive path (2) of the four-wire circuit, the level NREC of this signal and the levels NAV and NAP of the signals before and after the subtractor (13). It comprises means (21) for comparing the level NAV to two fixed thresholds NAVO, NAV1 and for comparing the ratio NAP/NAV to a threshold a which is capable of varying as a function of NAV, the centre clipper being only set to its active state when the level NAV is comprised between NAVO and NAV1 a d   e ratio NAP/NAV is below a threshold a, the clipping threshold varying in accordance with an increas-ing function of the level NAV.
Patent CA-1240112-A (CA)
Title: Die with combining adaptor insert and melt-lamination   process
Inventor: CLOEREN PETER
IPC: B29C48/08
Filed: 1985-05-14
Granted: 1988-08-09
Abstract: Abstract An extrusion apparatus including a die and a combining adaptor is provided.  The combining adaptor is inserted in a cavity in the die.  The extrusion apparatus includes flow channels, which converge in the proximity of a locus at which a layered melt stream formed by the convergence, is caused to diverge and flow transversely.          The locus of divergence is within a manifold.  As a result, the apparatus makes a laminate having layers of substantially uniform thickness without profiling of the layered melt stream.  Also provided is a process for making the laminate without profiling.  The invention lessens the curtaining effect in the layers of the laminate formed.
Patent CA-1241337-A (CA)
Inventor: MASON RONALD F
IPC: C07D205/04
Filed: 1985-07-05
Granted: 1988-08-30
Abstract: ABSTRACT              PREPARATION OF N-SUBSTITUTED AZETIDINE     The novel ester, N-benzyl azetidine-3-carboxylic acid, methyl ester; and its use in the preparation of the corresponding free acid by a process which comprises reacting N-benzyl 3-cyano azetidine with methanol and hydrolysing the result methyl ester with hot water.
Patent CA-1261387-A (CA)
Inventor: NORRIS ALAN J
IPC: H01F19/04
Filed: 1985-07-23
Granted: 1989-09-26
Abstract: Abstract High voltage control Control of high voltage is effected using apparatus having a high impedance generator, the output being connected to a first member of low radius of curvature and a second member.  The two members are spaced apart by a gas gap so that when the voltage between them exceeds a threshold value corona discharge across the gap can occur.  Such apparatus is particul-arly useful in controlling voltage and hence the size and size distribution of liquid droplets in electrostatic spraying apparatus.
Patent CA-1253611-A (CA)
Title: Modular cable interconnection apparatus
Inventor: BECRAFT ARTHUR D
IPC: H04Q1/14
Filed: 1985-07-31
Granted: 1989-05-02
Abstract: MODULAR CABLE INTERCONNECTION APPARATUS            Abstract A cable connection unit includes a mounting arrangement for holding a variety of modular interconnection units for interconnecting a variety of communication cables.  Each interconnection unit has the same length and a width which is an integer multiple of the width of the smallest interconnection unit.  The mounting arrangement can be mounted to a plate surface or to an apparatus enclosure having cable entry and exit opening and a moveable front panel.  The apparatus enclosure perimeter includes a mortise and tenon to enable mechanical interconnection to one or more additional housing enclosures.
Patent CA-1250449-A (CA)
Inventor: SKURA WILLIAM A
IPC: F16H7/06
Filed: 1985-09-05
Granted: 1989-02-28
Abstract: ABSTRACT         A toothed, positive drive, power transmission belt  of  the  type  having  an  endless  substantially inextensible tensile member to which are  secured belt teeth having a curvilinear cross-section and covered by an outer non-stretch fabric cover.  In the body of each tooth is a layer of fabric reinforcement separated from the outer cover fabric of the belt tooth and of the land region  between  belt  teeth  by  a  cushion  layer  of elastomeric material of varying thickness  so that the outer tooth portions are free to flex while the inner portion of the tooth is reinforced against shear.  The resulting construction provide belts having substantially longer belt life than conventional belts at relatively high horsepower application.
Patent CA-1233585-A (CA)
Inventor: LEE CHUNG J
IPC: C08G73/00
Filed: 1985-10-11
Granted: 1988-03-01
Abstract: SOLUBLE SILICONE-IMIDE COPOLYMERS            ABSTRACT OF THE DISCLOSURE     There is provided a siloxane-imide copolymer composition having at least one polymeric block with a low glass transition temperature and at least one polymeric block with a high glass transition temperature. Preferred compositions have the general formula
Patent CA-1229968-A (CA)
Inventor: GRAVES DANIEL F
IPC: C01B21/098
Filed: 1985-10-25
Granted: 1987-12-08
Abstract: METHOD FOR PURIFYING CYCLIC DICHLOROPHOSPHAZENE TRIMER OF     CATALYTIC IMPURITIES                   Abstract Of The Disclosure Cyclic dichlorophosphazene trimer which is substantially pure except for catalytic impurities is purified by treating the trimer in the liquid phase with P205 for 10-30 minutes at a temperature of 120-170°C. and atmospheric pressure, then subjecting the reaction mix to a single further purifica-tion step by sublimation, melt filtration, or distillation.  The purified trimer will not polymerize in the absence of added catalyst at 300°C. or below.
Patent CA-1259243-A (CA)
Inventor: HIGGINS WILLIAM A
IPC: C07C303/22
Filed: 1985-11-01
Granted: 1989-09-12
Abstract: Title: AQUEOUS SYSTEMS CONTAINING AMINO SULFONIC        ACID DERIVATIVES OF CARBOXYLIC ACIDS     ABSTRACT OF THE DISCLOSURE     Aqueous   systems  also  are  described  which comprise  at least about 40% of water and an N-acylated amino  hydrocarbyl  sulfonic  acid  or salt composition characterized  by  the presence within the structure of an  imido  group  or  at  least  one  acyl  acyloxy  or acylimidoyl  group attached to the amino nitrogen, said groups  being  derived  from the carboxylic acid groups contained in (a)  maleic acid or anhydride, or (b)  a  hydrocarbyl-substituted polycarboxylic acid or anhydride.          The   amino   hydrocarbyl   sulfonic   acid   or   salt compositions  are  useful  as  emulsifiers, thickeners, dispersants, etc. in the aqueous systems.
Patent CA-1251436-A (CA)
Inventor: CHANG CLARENCE D
IPC: C01B39/06
Filed: 1985-12-11
Granted: 1989-03-21
Abstract: PREPARATION OF GALLOSILICATE ZEOLITES                  Abstract of the Disclosure A gallosilicate zeolite is prepared by treatment of a high silica gallium-free zeolite with a source of gallium in an aqueous solution having a pH no less than 7 at 50°-250°C.  The product is then ammonium-exchanged and calcined to produce a catalyst with increased Bronsted acidity.
Patent CA-1258541-A (CA)
Inventor: MAROT MICHEL
IPC: G01T1/10
Filed: 1986-02-18
Granted: 1989-08-15
Abstract: Système dosimétrique pour rayonnements ionisants. Il comprend un dosimètre constitué d'une gaine de protection et d'un support renfermant des éléments sensibles au rayonnement gamma et aux neutrons thermiques "ou lents" et un dispositif semi-conducteur sensible aux neutrons rapides d'une part, et un lecteur constitué d'un bâti et d'un mécanisme de réception du dosimètre, équipé d'une source d'excitation à rayons ultra-violet, d'un dispositif de mesure des rayonnements émis par les capteurs et d'un dispositif de mesure des grandeurs électriques liées au dispositif semi-conducteur d'autre part. Le support du dosimètre est muni d'un étui et est constitué d'un corps renfermant les éléments sensibles verrouillés par une plaquette, comportant à une extrémité un élément d'étanchéité et à l'autre extrémité un élément d'encliquetage sur l'étui. Le bâti du lecteur est constitué de deux parties, l'une un capot supportant la source et les dispositifs de mesure, l'autre un socle assurant le guidage du mécanisme de réception, ledit mécanisme pouvant assurer l'ouverture du dosimètre, le blocage de l'étui et le transport de l'ensemble (corps et étui) dans la position de mesure en combinaison avec un élément d'entraînement, et assurant l'immobilisation du corps.
Patent CA-1271778-A (CA)
Inventor: GUGLIELMO GIORGIO
IPC: C07C/
Filed: 1986-03-11
Granted: 1990-07-17
Abstract: Abstract Or the Disclosure Preparation of fluoroxy-halo-compounds by direct reac-tion between fluorine and organic compounds having a molecular structure in which at least one oxygen atom is directly bound to a carbon atom in the carbonylic form, in the presence of a fluor-ination catalyst,  in gaseous phase, at an absolute pressure of between 50 and 800 kPa and at a temperature between -50° and +150°C, under conditions of a continuous feeding of the reactants and a continuous removal of the reaction product.
Patent CA-1236754-A (CA)
Inventor: MAGNES HERBERT
IPC: E04H4/12
Filed: 1986-03-27
Granted: 1988-05-17
Abstract: Abstract The invention is directed to a liquid level control system which includes a primary float valve which allows liquid to flow into a pool reservoir when the level of fluid in the reservoir is below a first predetermined level and a secondary float valve associated with the primary flow valve which shuts off the flow of fluid into the pool reservoir when the level of liquid in the pool reservoir exceeds a second predetermined level which is higher in elevation than the first predetermined level. The primary valve continually operates between open and closed states. The secondary valve is normally in an open state and when it is caused to go to a closed state it remains closed until it is manually reset.
Patent CA-1256216-A (CA)
Title: Program switching with vector registers
Inventor: BUCHHOLZ WERNER
IPC: G06F17/16
Filed: 1986-04-15
Granted: 1989-06-20
Abstract: PROGRAM SWITCHING WITH   VECTOR REGISTERS               Abstract of the Disclosure The invention relates to vector registers (VRs) which have associated therewith a vector status register (VSR) that includes VR status information in the form of vector in-use and change bits for saving and restoring (the contents of) the VRs.  When the vector in-use bit for a VR is zero, the saving and subsequent restoring of the VR is eliminated because the VR is known to contain all zeros.  This reduces program switching time.  The vector change bit for a VR serves to reduce switching time still further by permitting the saving of a VR to be eliminated when its vector in-use bit is one but the vector change bit is zero.  Although such a VR is in use, its content has not been changed since the last restore from the same save area in storage.  The previously saved information is still valid.  The vector change bits do not affect the restoring of vector registers and, therefore, do not reduce the restore time.
Patent CA-1240004-A (CA)
Inventor: GOCZALK ROBERT W
IPC: H03K5/13
Filed: 1986-05-30
Granted: 1988-08-02
Abstract: ABSTRACT OF THE DISCLOSURE A system for automatic  alignment of two pulses  is disclosed.  The disclosed system is particularly  adapted to align  the cathode  current pulse  supplied to  a  TWT amplifier with the RF exciter pulse so as to improve  the efficiency of the TWT  amplifier.  The system includes  a programmable delay circuit  for selectively delaying  the cathode current pulse after the system trigger.  A  pulse alignment signal  indicates when  the two  pulses are  in alignment.  A system controller carries out a calibration algorithm  to   iteratively   change  the   delay   while monitoring  the   alignment  signal   to  determine   the calibrated delay  setting resulting  in pulse  alignment. The calibrated delay  setting is then  stored in  memory, and is  employed  by  the controller  during  the  normal operation mode to adjust  the programmable delay  circuit to the calibrated value.
Patent CA-1271692-A (CA)
Inventor: SAKATA KEI
IPC: C21D9/48
Filed: 1986-05-30
Granted: 1990-07-17
Abstract: 60-116,661 Abstract of the Disclosure A method of manufacturing a cold-rolled steel sheet having a good deep drawability is disclosed, wherein a hot rolled steel sheet having a composition of  C<0.0035%,  Si<1.0%,  Mn<1.0%,  A?:0.005-0.10%, P<0.15%,  N<0.0035%,  S<0.015%,  Ti:(?N(%)+?S(%))  or {4x(C(%)+N(%))}~(3??C(%)+?N(%)+?S(%))  and   Nb: (0.2??C(%))~(?C(%))% is cooled within 2 seconds after the completion of finisher rolling and then at an average cooling rate of not less than 10°C/sec until it arrives at a coiling step, and then the cooled steel sheet is coiled at a temperature of not more than 710°C, subjected to a cold rolling at a reduction of not less than 50%, which was subjected  to a continuous annealing in a heatcycle inclusive of heating from 400°C to 600°C at a heating rate of not less than 5°C/sec and soaking at a temperature range of 700°C-Acs point for 1 second or more.
Patent CA-1248289-A (CA)
Inventor: HEITNER BARRY J
IPC: C08F4/28
Filed: 1986-06-17
Granted: 1989-01-03
Abstract: ABSTRACT OF THE DISCLOSURE        A process for producing acrylic polymers at a high rate which have high thermal stability, ace free of defects and have a low level of unreacted monomer by polymerization of a methyl methacrylate syrup in the presence of a mixture of three peroxide initiators.
Patent CA-1267803-A (CA)
Inventor: BERKEY GEORGE E
IPC: C03B37/025
Filed: 1986-07-15
Granted: 1990-04-17
Abstract: Abstract of the Disclosure A low loss fiber optic coupler is fabricated by forming a coupler preform having a plurality of spaced glass cores extending longitudinally  through a matrix of glass having a refractive index lower than that of the cores.  The coupler preform is formed by inserting a plurality of coated optical fiber preform rods into an  aperture  extending  axially  through  an  elongated boule  of  relatively  etchable  matrix  glass.   The cladding  portion  of the  rods,  which  is  relatively etch-resistant,  is  coated with  a  layer  of  etchable glass.  The coupler preform is heated and stretched to form a glass rod which is then severed into a plurality of units.   Heat is applied to the central region of each unit,  and  the  central  region  is  elongated  and tapered inwardly.  When an end of the unit is immersed in acid,  the matrix glass dissolves,  thereby leaving the unit cores and surrounding etch-resistant cladding glass protruding from the newly formed endface of the unit.
Patent CA-1238692-A (CA)
Inventor: MARSH DOUGLAS G
IPC: H03K17/16
Filed: 1986-07-21
Granted: 1988-06-28
Abstract: FIELD-EFFECT TRANSISTOR CURRENT SWITCHING CIRCUIT Abstract An MOS current steering circuit (10) includes a current mirror arrangement with an input branch (12) and an output branch (16).  In the input branch, the conduction channels of a current-limiting transistor (M1) and a current mirror input transistor (M3) are connected in series with each other between a first power supply voltage node V+ and one side of a current source (14).  The other side of the current source and the gate of the current-limiting transistor are connected to another supply voltage node (V-).  In the output branch, a current mirror output transistor (M4) has one side of its conduction channel connected as a current output node (D).  The gates of the input and output transistors are connected together and to the common node (A) of the input transistor and the current source.  A control transistor (M2) has its conduction channel connected between the other side of the output transistor and the first voltage supply node.  The control transistor switches the ouput transistor by controlling the output transistor's gate-to-source voltage.  Also disclosed are modified versions which include a circuit (20) designed for greater accuracy in the output and a circuit (22) designed for digital-to-analog conversion functions.
Patent CA-1266340-A (CA)
Inventor: SAKANO HAJIME
IPC: C08L9/06
Filed: 1986-09-16
Granted: 1990-02-27
Abstract: Abstract:     The invention provides a thermoplastic resin composition which comprises (A) a polycarbonate resin, (B) a conjugated diene rubber-reinforced styrene resin and (C) a polyester elastomer, optionally with (D) a saturated polyester.  The weight proportion of the components (A), (B) and (C) or (C) + (D) is from 5 - 90 : 5 - 90 : 2 - 60. The composition has very good chemical resistance and weld strength.
Patent CA-1253939-A (CA)
Title: Graphics based call management
Inventor: HAYDEN CHARLES C
IPC: H04M1/00
Filed: 1986-11-18
Granted: 1989-05-09
Abstract: GRAPHICS BASED CALL MANAGEMENT     Abstract There is disclosed a method of setting up, manipulating, and taking down communication connections.          The telephone instrument would include a graphics screen, such as a PC, and a series of call appearance boxes would be represented on the screen.  Each possible party to a connection would be represented by a picture (icon generated upon request for a particular party) and an associated label (the party's name).  The icon (Charles, Bill) representative of a party is moved, by use of a cursor, inside a communication appearance box on the screen to place that party on the call.  The icon would be moved out of the box to drop the party from the call.  In this manner, two-party, as well as conference, calls can be established.
Patent CA-1273146-A (CA)
Inventor: CARLICK DANIEL J
IPC: C08G18/83
Filed: 1986-12-12
Granted: 1990-08-21
Abstract: PROCESS FOR PREPARING URETHANE MODIFIED RESINS AND RESULTANT COMPOUNDS                          ABSTRACT           A urethane modified resin is prepared by reacting a resin containing carboxyl groups with an amine-alcohol to form a resin-amine salt, followed by reacting the resine amine salt with a polyisocyanate.
Patent CA-1248642-A (CA)
Inventor: STAFFORD GEORGE C JR
IPC: H01J49/42
Filed: 1987-03-06
Granted: 1989-01-10
Abstract: -?-Abstract of the Invention A method of mass analyzing a sample in a quadrupole ion trap mass spectrometer in which the number of sample ions formed in the ion trap prior to analysis is controlled to avoid saturation and space charge in the ion trap.