baber/WOPTO huggingface dataset:
Patent CA-1183582-A (CA)
Title: Precision differential relaxation oscillator circuit
Inventor: ZOBEL DON W
IPC: H03K4/50
Filed: 1982-07-26
Granted: 1985-03-05
Abstract: PRECISION DIFFERENTIAL RELAXATION OSCILLATOR CIRCUIT                Abstract of the Disclosure A relaxation oscillator which is suited for fabrication as a monolithic circuit and which uses a parallel resistive capacitive frequency determining network wherein a capacitor is charged and discharged between an upper and lower voltage level.  As the capacitor is charged to a potential exceeding a first threshold voltage level supplied to a comparator switch, the operating state of the comparator is caused to switch.  A current detecting circuit is included which detects a current that is proportional to the charging current supplied to the capacitor from a charge circuit.  As the proportional current decreases in value below a predetermined level due to the capacitor being charged to the upper voltage level the current detecting circuit is disabled which actuates a control circuit for switching the threshld voltage applied to the comparator to a lower level.  The actuated control circuit also disables the charge circuit such that the capacitor discharges to the lower voltage level at which time the comparator switches states to disable the control circuit whereby the threshold voltage level is switched to the first level.  Thereafter, the charge circuit is enabled to enable the current detecting circuit and to charge the capacitor to the upper voltage level.
Patent CA-1186791-A (CA)
Inventor: DASSOW EDGAR E
IPC: F16P3/20
Filed: 1982-07-27
Granted: 1985-05-07
Abstract: SAFETY SWITCH SYSTEM FOR INDUSTRIAL MACHINES                      ABSTRACT          A touch plate switch is used to energize an industrial machine.  The switch is closed by mere contact of the touch plate by an operators hand.  No physical movement of the plate is required.  As a consequence, the risk of the operator developing carpal tunnel syndrome is substantially eliminated.  By providing two such touch plate switches for operating relay switches connected in series, both switches must be simultaneously operated to start the industrial machine. By separating the switches a distance sufficient to prevent operation of both switches by one hand, the operator must use both hands and thereby a further safety feature is realized in that one of the operator's hands will not be inadvertently damaged by the machine.
Patent CA-1198912-A (CA)
Inventor: HIRAISHI HISASHI
IPC: H01F1/00
Filed: 1982-09-09
Granted: 1986-01-07
Abstract: ABSTRACT OF THE DISCLOSURE     An alloy comprising, by weight, 0.1-0.6% C, up to 2% Si, 5-15% Mn, 5-15% Cr, 5-13% Ni, 1-3% V, and at least one of up to 1% Mo and up to 2% Nb, the balance being substantially Fe and inevitable impur-ities.  The alloy has an outstanding non-magnetic property of up to about 1.004 in magnetic permeability and high hardness of above about 215 in Vickers hard-ness and is useful for electromagnetic stirrer rolls for continuous casting equipment.
Patent CA-1185533-A (CA)
Inventor: CONNER DONALD E
IPC: A61K8/33
Filed: 1982-09-23
Granted: 1985-04-16
Abstract: ABSTRACT OF THE DISCLOSURE               Compositions containing an organic sunscreen and particular substituted dialkyl malonates adjuvants therefor are very effective in providing broad spectrum sunscreen protection.
Patent CA-1178988-A (CA)
Inventor: BOND CURTIS J
IPC: B67D3/04
Filed: 1982-11-05
Granted: 1984-12-04
Abstract: ABSTRACT COUPLING FOR A LIQUID DISPENSER AND VALVE ASSEMBLY A coupling and valve assembly is provided which permits a connector member to be used to open and close the valve assembly with only one hand and which provides safeguards against accidental release of liquid therethrough. The coupling valve assembly comprises a spout and a valve member slideable within the spout, these two parts being so shaped as to provide inner and outer seals therebetween on either side of a dispenser outlet and a one-way stop which prevents excessive outward movement of the dispenser outlet but permits the dispenser outlet to move inwardly to an open position. The valve member is normally moved to its open position by pushing a connector member into the valve member; if desired, this connector member can have a second, spring-biased valve which is opened by a projection on the valve member.
Patent CA-1184183-A (CA)
Inventor: KURKELA KAUKO O A
IPC: C07D233/64
Filed: 1982-11-25
Granted: 1985-03-19
Abstract: ABSTRACT OF THE DISCLOSURE      Novel compounds of the formula:                           or               wherein each of R1, R2 and R3, which can be the same or different, is hydro-gen, chloro, bromo, fluoro, methyl, ethyl, methoxy, amino, hydroxy or nitro; R4 is hydrogen or alkyl of 1 to 7 carbon atoms; R5 is hydrogen or a straight or branched alkyl group of 1 to 5 carbon atoms or a phenyl group; R6 is hydrogen or an alkyl group of 1 to 7 carbon atoms,or a benzyl group , or a sub-stituted benzyl group of the formula     , where R1, R2 and R3 are defined above, and n is 0 or 1; provided that when R2, R3, R4, R5 and R6 all are hydrogen and R1 is (a) chloro, then R1 must be in the 3-position; (b) methyl or methoxy, then R1 must be in the 2- or 3-posi-tion, or (c) hydrogen, then n must be other than 1; and their non-toxic, phar-maceutically-acceptable, acid-addition salts and mixtures thereof, are pro-vided herein.  Processes for the preparation of these compounds are described, as are novel pharmaceutical compositions comprising at least one of the com-pounds or their salts.  The compounds and their non-toxic salts exhibit valua-ble pharmacological activity and are useful in the treatment of mammals, e.g. as diuretic agents.  Furthermore, some of these compounds have antithrombotic and antihypertensive effects.
Patent CA-1194394-A (CA)
Title: Mouthpiece for an instrument for detecting alcohol in   the breath
Inventor: SIEGMANN KLAUS
IPC: A61B5/097
Filed: 1982-12-03
Granted: 1985-10-01
Abstract: ABSTRACT   A test person blows respiratory air into an instrument for measuring alcohol in the breath by way of a mouthpiece.  Such mouthpieces must be used hygienically and must therefore, preferably, be replaceable for each test person and thus be designed for use once only.  A mouthpiece disclosed herein comprises a mouth portion and a hollow connecting member which penetrates the base of the mouth portion and connects the mouthpiece to the measuring instrument.    The mouthpiece may be an integral moulded part of polypropylene.  The test person encircles the mouth portion with his lips and blows into the instrument by way of the hollow connecting member.  A limiting flange on the mouth portion limits insertion into the mouth and further, keeps the outer surfaces, to be touched, free of salvia.  The mouthpiece can be fitted with a non-return valve. A valve case in the mouth portion holds a valve reed which lifts itself elastic-ally from holes in the base of the valve case when the test person blows in, and subsides so as to close the valve when the test person inhales.
Patent CA-1167723-A (CA)
Inventor: SMITH DONALD L
IPC: F23J11/00
Filed: 1982-12-29
Granted: 1984-05-22
Abstract: IMPROVED VENTING SYSTEM                           ABSTRACT          A venting system for the combustion chamber of an oil or gas-fired heating appliance has an elongate diverter box arranged vertically exteriorly of the heating appliance.          Such diverter box has an upper end tightly closed off by an insulated imperforate cover and a relief open lower end closed for safety by a perforate grill on which a safety spill switch is mounted.  The interior of the diverter box houses a vertically disposed centrally arranged insulated baffle having an upper end in fume tight engagement with the cover and a lower free end terminating substantially above the grill.  The baffle extends between opposing side walls of the diverter box centrally of the end walls and is in a sealed relation with the side walls and divides the box into a flue gas inlet section that is connected at the upper portion of the box to the appliance and a vent gas outlet section that is connected at the upper portion of the box to the chimney flue.  The inlet section has a turning vane provided on the end wall just below the lower free end of the center baffle.  During the burn cycle, the flue gases from the flue outlet of the appliance enter into the upper end portion of the inlet section on one side of the center baffle and travel downward to the lower free end of the baffle before entering the vent outlet section to travel on out the chimney flue.  This downward turn interrupts the conventional oath of the heat to the chimney and results in reduced velocity in the heat exchanger and reduced volume of excess air in the combuation chamber of the appliance.  During the off cycle, this downward turn "locks in" the pilot heat and residual heat which, other-wise, would continue to be lost up the chimney flue.
Patent CA-1194405-A (CA)
Inventor: WARD DONALD H
IPC: E21B47/12
Filed: 1983-01-06
Granted: 1985-10-01
Abstract: ABSTRACT OF THE DISCLOSURE      A submersible well pump has a system for monitoring the pressure and temperature in the vicinity of the motor. The system includes a downhole assembly in the well that has   a   transmitter for   generating   a   signal   and superimposing   the   signal   onto   the power   cable. Transducers  in  the  downhole  assembly  sense  physical parameters such as pressure and temperature and provide electrical   responses   corresponding   to   the   physical parameters.  The transducers are connected to a modulator which modulates the  signal provided by  the  transmitter according to the electrical response of the transducers. The modulated carrier signal is converted at the surface into  a  readout  signal  proportional  to  the  physical parameters.
Patent CA-1195089-A (CA)
Inventor: KITAMURA MINORU
IPC: B22D27/02
Filed: 1983-03-17
Granted: 1985-10-15
Abstract: ABSTRACT OF THE DISCLOSURE      A method for electromagnetically stirring molten steel in continuous casting wherein in producing cast slabs or blooms, an electromagnetic stirring force is applied to the unsolidified molten steel in the cast slab or bloom being drawn.  The method is characterized in that n electromagnetic stirrer is installed between drawing positions where the unsolidified thickness is 45% and 15%, respectively, of the thickness as viewed in the direction of the thickness of the cast slab or bloom, and in that stirring in the casting direction is applied to the unsolidified molten steel in such a manner that the product of the magnetic flux density (gauss) at the interface between the unsolidified and solidified portions and the stirring time in minutes (which is defined as the ratio of the stirring effective length (mm) of the electromagnetic stirrer to the casting speed (m/min) is 1.600 gauss-min or more per m3 of the total volume (m3) of unsolidified molten steel present in a region extending to the drawing side from the position where the electromagnetic stirrer is located.
Patent CA-1203787-A (CA)
Inventor: DUPUIS EMMANUEL F
IPC: A47G29/12
Filed: 1983-04-28
Granted: 1986-04-29
Abstract: Title:  CONTAINER     Inventor:  EMMANUEL F. DUPUIS     ABSTRACT OF THE DISCLOSURE           A container, for newspapers or other articles, is arranged for mounting on an edge of a door, by means of, for example, an L-shaped clip.  The container has a first opening through which an article can be inserted.  The first opening is provided with means for at least hindering removal of the articles.  The means could be inwardly directed flanges around the first opening.  A second opening is provided for removal of articles.  It is closed when the door is closed and is opened when the door is opened to permit removal of articles from the container.  The second opening can be provided on one edge of the container, so that it is closed by a doorjamb associated with the door.
Patent CA-1209171-A (CA)
Inventor: BERGLUND HAROLD A
IPC: F16L37/24
Filed: 1983-05-25
Granted: 1986-08-05
Abstract: COUPLING FOR FLUID FLOW SYSTEM   ABSTRACT OF THE DISCLOSURE A detachable coupling for connecting a fire hydrant barrel to a fire hose includes a socket in the barrel and a nozzle permanently but replaceably mounted in the socket.  The socket has radially inwardly extending coupling lugs, and nozzle has radially outwardly extending coupling flanges.  To mount the coupling nozzle in the barrel socket, the socket is selectively inserted into an opening in the socket with the lugs and flanges so aligned that the nozzle flanges pass by the socket lugs.  The nozzle is then rotated to axially align the lugs and flanges. Releasable locking means constituted as a locking ring threadably mounted on the nozzle is used against the socket to draw the nozzle lugs back into overlying locked relation with respect to the flanges.  A resilient O-ring seal is also provided in the locking ring between the socket and nozzle to prevent leakage between the coupling and the hydrant barrel.
Patent CA-1197470-A (CA)
Inventor: ANDERSON CARL R
IPC: H04R3/00
Filed: 1983-06-02
Granted: 1985-12-03
Abstract: ABSTRACT OF DISCLOSURE        A microphone channel is constructed from a pair of unidirectional microphone elements mounted back-to-back for monitoring sound coming from a predetermined area of space.  The output signals of each microphone element are converted to D.C. logarithmic signals which are compared for gating an electrical-output signal of a microphone element to the out-put/amplifying system.
Patent CA-1203815-A (CA)
Inventor: HAYES WILLIAM V
IPC: C07C67/00
Filed: 1983-08-08
Granted: 1986-04-29
Abstract: ABSTRACT OF THE DISCLOSURE          An improved process for the vapor phase nitration of alkanes comprising reacting the alkane with nitric acid in the presence of a catalyst which is the salt or oxide of a Group II metal of the periodic chart.
Patent CA-1216283-A (CA)
Title: Amino-14 steroides, leur application en therapeutique   et procede pour leur preparation
Inventor: JARREAU FRANCOIS-XAVIER
IPC: C07J7/00
Filed: 1983-08-11
Granted: 1987-01-06
Abstract: L' invention concerne un procédé de préparation d'amino-14 stéroïdes de formule générale (I): < IMG > (I) dans laquelle R est un atome d'hydrogène ou un groupe alkyle inférieur de 1 à 4 atomes de carbone, et R1 représente un atome d'hydrogène ou un groupe hydroxyle. Ce procédé est caractérisé en ce qu'on effectue une réduction puis une acétylation des dihydroxy-3,14 stéroïdes de formule (II): (II) < IMG > dans laquelle R a la même définition que ci-dessus, pour former les tri-hydroxy-3,14,20 stéroïdes O-acétylés de formules (III): (III) < IMG > dans laquelle R a la même signification que ci-dessus, R1 est un atome d'hydrogène ou un groupe acétyle et Ac est un groupe acétyle, sur lesquels on fait agir un complexe acide azothydrique-trifluorure de bore pour former le dérivé azido-14 correspondant, puis on effectue une réduction par un hydrure métallique ou par hydrogénation catalytique. L'invention concerne également les composés d'amino-14 stéroïdes obtenus par ce procédé, ces composés étant notamment utilisés comme médicaments cardiotoniques pour le traitement des insuffisances cardiaques.
Patent CA-1214026-A (CA)
Inventor: CREMER PAUL
IPC: B01J8/06
Filed: 1983-09-28
Granted: 1986-11-18
Abstract: ABSTRACT A process for catalyst exchange in narrow tubular reactors which have a height to diameter ratio of at least 30:1, as well as an arrangement for the implementation of the process is provided. Catalyst exchange can be achieved quite simply when the catalyst charge is expelled against the force of gravity with the aid of a transport fluid. As transfer fluids, liquids, such as water or oil, and gases, such as compressed air, come into consideration. In the simplest instance, water can serve as the transport medium when the catalyst is not to be reused or is compatible with moisture. Preferably transport pauses of between about 0.1 to 1 seconds are introduced between transport periods of 2 to 20 seconds for the transport fluid, thereby permitting the emptying of the catalyst from the reactor within one minute.
Patent CA-1212208-A (CA)
Inventor: GUNNES KARE
IPC: F27B13/02
Filed: 1983-11-04
Granted: 1986-10-07
Abstract: A B S T R A C T            A ring section baking furnace for the indirect heating of shaped bodies or particulate material,  particularly for calcination in which the vertical ducts, or channels, in the pit walls are arranged in groups, by means of partition walls under the bottom of the pits. The flue gases are led up and down through these ducts. The combustion chambers of furnaces of earlier design may thus be absent, and this volume incorporated in the pit volume.  The ducts in each pit wall lead out over the pit wall into one or more separate spaces which series connect two neighboring groups in the pit wall. Less refractory brick is required, more even temperature of the calcined material is achieved and consumption of fuel is reduced and capacity increased.
Patent CA-1225207-A (CA)
Title: Method of forming a shaped acrylonitrile polymer  article
Inventor: HASENAUER RANDAL J
IPC: B29C41/12
Filed: 1983-11-09
Granted: 1987-08-11
Abstract: A METHOD OF FORMING A SHAPED ACRYLONITRILE POLYMER ARTICLE            Abstract A shaped acrylonitrile polymer article is formed by providing an acrylonitrile polymer aquagel film, conforming said aquagel film into the desired shape and while in said shape, heat-removing at least substantially all of the water from said aquagel film.
Patent CA-1223521-A (CA)
Inventor: LARRONDE MICHAEL L
IPC: E21B47/18
Filed: 1983-11-09
Granted: 1987-06-30
Abstract: Abstract of the Disclosure A mud pulse telemetry ksystem for imparting data pulses to drilling fluids circulating in a drill string including an improved valve arrangement for modulating the pressure of the circulating drilling fluid is disclosed.  A shear-type valve is arranged  in a through conduit configuration so that the seat face of the valve is covered when the valve is in an open position,  thus preventing  impingement of abrasive  fluid particles on the valve seat face during the open flow position of the valve.  The activation means is connected to the valve gate through a floating connection which prevents lateral stress forces operating on the valve from being imparted to the solenoid.  The floating connection also permits convenient removal of the valve seat and gate from an access opening on the exterior of the drill string housing to facilitate the replacement of critical valve parts without removing the valve subassembly from the drill string.   The valve gate and seat having an oblong valve flow opening therein which provides for sufficient fluid flow to adequately modulate the fluid pres-sure and at the same time provide a minimum length of stroke for the solenoid to operate the valve.  An upset rim on the valve seat provides a seating face smaller than the opposing seating face of the gate.   The valve arrangement includes a latch device for controlling the valve which includes a latching solenoid armature is connected to the valve gate through  separate  open  and  close  solenoids  having their armatures operatively connected to act as a single unit.  The single unit armature is normally restrained from movement by the solenoid deactivated latch device.   The latch device is arranged so that the vibrational and impact loads on the drill string serve to further maintain the modulating valve in a closed position.
Patent CA-1246295-A (CA)
Inventor: CLENDINNING ROBERT A
IPC: C08G65/40
Filed: 1983-11-24
Granted: 1988-12-06
Abstract: AROMATIC AMORPHOUS THERMOPLASTIC TERPOLYMERS         ABSTRACT OF THE DISCLOSURE Described herein are amorphous thermoplastic terpolymers containing units of the formula:      (I)       , and (II)    ,and                    (III) optionally wherein R is independently hydroqen, C1 to C6 alkyl, or C4 to C8 cycloalkyl, X' is independently   wherein R1 and R2 are independently hydrogen or C1 to C9 alkyl;    wherein R3 and R4 are independently hydrogen or C1 to C8 alkyl; and a1 is an integer of 2 to 7;          -S-, -O-, or  , a is an integer of 0 to 4 and n is independently an integer of 1 to 3.  The units are attached to each other by an -O- bond.  These polymers have an excellent combination of mechanical properties.  They display high notched izod impact values, high heat distortion temperatures and excellent environmental stress crack resistance.                  S P E C I F I C A T I O N
Patent CA-1205651-A (CA)
Inventor: OHTSUBO TAKASHI
IPC: G01N1/22
Filed: 1984-01-20
Granted: 1986-06-10
Abstract: ABSTRACT OF THE DISCLOSURE:           A sampler for the hydrogen analysis of molten metal includes a vacuum tubular body having a wall formed from an inorganic refractory material, and provided at one end thereof with a suction end which is melted upon immersion in molten metal to form an opening for the suction of molten metal.          The tubular body contains an inner tube connected to the suction end, formed from a hydrogen-permeable material and defining a cavity in which the molten metal drawn thereinto through the suction opening can be solidified into a sample having a predetermined shape.  The tubular body defines therein a hollow space located contiguous to the inner tube for collecting the hydrogen released from the sample during its solidification.  An apparatus for the hydrogen analysis of molten metal, including such a sampler, is also disclosed.
Patent CA-1233154-A (CA)
Title: Tape winding apparatus
Inventor: SAKAMOTO KATSUJI
IPC: H01B13/08
Filed: 1984-02-16
Granted: 1988-02-23
Abstract: SO-2-32528M/KX/83.     ABSTRACT OF THE DISCLOSURE     A tape winding apparatus including a rotatable spindle having an axial bore through which a core on which a tape is to be wound to produce a cable is advanced, and a reel carrying a roll of tape supported on the spindle for rotation about the core.  A takeup roller is provided between the reel and the core for defining at least two areas therebetween so that the ten-sion of the tape in one of those areas which is closer to the reel may be higher than in the other area.  A wind barrier is provided between those areas for prevent-ing transfer of a wind created by the rotation of the reel from the one area to the other area. A tension con-troller is provided between the takeup roller and the core for controlling the rotating speed of the takeup roller to maintain the tape therebetween at a satisfactor-ily low tension which ensures proper winding of the tape on the core.
Patent CA-1254939-A (CA)
Inventor: CAPEWELL DENNIS
IPC: H05B41/16
Filed: 1984-03-08
Granted: 1989-05-30
Abstract: CONTROL CIRCUIT FOR GAS DISCHARGE LAMPS           ABSTRACT OF THE DISCLOSURE         A gas discharge lamp control circuit for an inductive ballast includes anti-parallel connected controlled rectifiers connected in series with the a.c. source and the ballast and anti-parallel connected controlled rectifiers which are connected in series with a current limiting and energy diversion capacitor with a current limiting and energy diversion capacitor an in shunt with the ballast.  The controlled recti-fiers of the series and shunt switching assemblies are controlled so that, in any giver half wave, the related controlled rectifier of the shunt switching means turns on to discharge a capacitor into the normally conducting controlled rectifier of the series switching means to produce a notch in the voltage wave form applied to the inductive ballast.  The capacitor acts as a current limiting impedance and acts to permit reversal of the voltage during the notch interval in the input voltage to the ballast, thereby to increase the RMS content of the voltage wave form.  An automatic low end dim setting circuit maintains the low end setting regardless of the type of lamp or ballast which is employed.  A notch signal generating circuit is provided which employs two phase-shifted signals fed into a comparator and compared to a common reference level.