baber/WOPTO huggingface dataset:
Patent CA-1310751-C (CA)
Title: Double air-fuel ratio sensor system carrying out learning control operation
Inventor: NAGAI TOSHINARI
IPC: F02D41/14
Filed: 1986-11-12
Granted: 1992-11-24
Abstract: DOUBLE AIR-FUEL RATIO SENSOR SYSTEM CARRYING OUT            LEARNING CONTROL OPERATION     ABSTRACT OF THE DISCLOSURE     In a double air-fuel sensor system including two air-fuel ratio sensors upstream and downstream of a catalyst converter provided in an exhaust gas passage, an actual air-fuel ratio is adjusted in accordance with the outputs of the upstream-side and downstream-side air-fuel ratio sensors including an air-fuel ratio correction amount.  Also, a learning correction amount is calculated so that an integration amount of the air-fuel ratio correction amount is brought close to a reference value.  The actual air-fuel ratio is further adjusted in accordance with the learning correction amount.
Patent CA-1282015-C (CA)
Title: Cart wheel control for hoistway car
Inventor: VACCARO ANGELO M
IPC: B66B11/00
Filed: 1986-11-13
Granted: 1991-03-26
Abstract: CART WHEEL CONTROL FOR HOISTWAY CAR     ABSTRACT OF THE DISCLOSURE          A hoistway car for transporting wheeled carts between floor levels which includes means for reversing the cart swivel wheels to facilitate off-loading of the cart while avoiding chafing or jamming of such swivel wheels.  In the illustrated embodiments, the reversing means comprises turntables at the plane of the car plat-form which turn in predetermined directions to control wheel swivel action.  In one embodiment, the turntables rely on gravitational forces to initiate swivel action. and in another embodiment, the turntables are power-operated for inducing swivel action.
Patent CA-1290135-C (CA)
Inventor: TAM STANLEY S Y
IPC: C01F/
Filed: 1986-11-21
Granted: 1991-10-08
Abstract: ABSTRACT      A process for the production of calcium hyopchlorite from calcium hydroxide and chlorine in the presence of sodium hydroxide and dibasic calcium hypochlorite wherein the dibasic calcium hypochlorite is prepared from the calcium hypochlorite containing primary mother liquor and recycled evaporator mother liquor, and calcium hydroxide.          The process provides improved quality calcium hypochlorite products and sodium chloride by-product.  It also avoids the separation of co-crystallized calcium hypochlorite and sodium chloride and the precipitation and separation of calcium hydroxide as part of the recovery process.
Patent CA-1284369-C (CA)
Title: Crop processing apparatus
Inventor: GIRODAT JOSEPH C F
IPC: A01D41/127
Filed: 1987-02-19
Granted: 1991-05-21
Abstract: ABSTRACT                 CROP PROCESSING APPARATUS            Crop processing apparatus comprising crop processing means (18, 23, 24) driven by drive mean  (29) and an automatic control system comprising sensor means (50, 51) for sensing transmission loss in the drive means (29) and producing a corresponding transmission loss signal which is proportional to the load exerted by crop on the crop processing means, setting means (Sr) for selecting a desired level of crop load and producing a reference crop load signal (Sr) corresponding to a selected level of transmission loss, signal processing means (13) which compares the transmission loss signal with the reference crop load signal to produce a control signal (Se), and actuator means (14) that is controlled in accordance with said control signal and is effective to vary the rate of feed crop to the processing means to maintain a substantially uniform load of crop in the crop processing means.  The transmission loss takes the form of relative rotation or slip between input drive and output driven shafts (31,33).  Preferably, the drive means comprises a belt driven (34), and belt slip is used as a measure of transmission loss. The belt slip in the belt drive to a crop threshing cylinder is preferably used as the control parameter.  The sensor means (50, 51) measures the rates of rotation (Sb, Sc) of the input drive shaft (31) and output driven shaft (33, 36) and the signal processing means (13) calculates the ratio of said rates of rotation to determine belt slip.  This belt slip value may be normalised using values of the rate of rotation (Sbn, Scn) of two shafts measured under standard, no-load conditions.  The actuator means (14) may be the forward speed controller of a combine harvester.
Patent CA-1282749-C (CA)
Title: Personnel safety device for an underground duct particularly a sewer pipe
Inventor: BRINKMANN ARNFRIED
IPC: E03F7/00
Filed: 1987-04-15
Granted: 1991-04-09
Abstract: ABSTRACT OF THE DISCLOSURE      The safety device for a person in an underground duct, tunnel or the like, particularly for a person in a sewer pipe, comprises a guide rail attached by a plurality of spaced fasteners to the roof of the duct or tunnel and a traveling body movable on and along the guide rail which is attached with a safety tether to a safety belt worn by the person. The traveling body is a hingedly or pivotally openable and closable end piece device located at or near one end of a safety rod which is provided with a retaining eye for the safety tether and with an end piece handle at its other end.
Patent CA-1279266-C (CA)
Title: Variable nozzle structure for a turbine
Inventor: YANO SHUNJI
IPC: F01D17/16
Filed: 1987-05-29
Granted: 1991-01-22
Abstract: ABSTRACT OF THE DISCLOSURE       In a variable nozzle structure for a turbine, moveable vanes for controlling variable cross section nozzles which lead to a turbine wheel are actuated by a drive unit which comprises an actuator for causing a linear motion to a rod member, a lever arm member which is pivotally supported by a part of the turbine casing and is connected to the rod member at its one end so as to be able to rotate about its pivot point with respect to a turbine casing when the rod member is driven linearly, a crank arm member which is integrally connected to a pin shaft which is securely attached to each of the moveable vanes and pivotally supports the corresponding moveable vane, and an engagement member which is fixedly attached to the lever arm member and is engaged with the crank arm member so as to cause the rotational motion of the crank arm member when the lever arm member is rotatively driven by the rod member.  Thereby, accurate control of the variable nozzles can be accomplished with a simple structure.
Patent CA-1287892-C (CA)
Title: Hermetically sealed electrical feedthrough
Inventor: GARTZKE DONALD G
IPC: H01R13/52
Filed: 1987-08-18
Granted: 1991-08-20
Abstract: ABSTRACT      An hermetically sealed electrical feedthrough assembly including an elongated inner electrical conductor having first and second ends; a glass body hermetically sealed around one length portion of the inner conductor adjacent to the first end thereof; a metal adapter hermetically sealed around the glass body and adapted for mounting in a wall of a housing; a tubular outer electrical conductor enclosing and coaxial with another length portion of the inner electrical conductor, the outer electrical conductor being separated from the inner electrical conductor by an annular volume and having one end portion electrically connected to the metal adapter and an opposite end portion disposed adjacent to the second end of the inner electrical conductor; and electrical insulation filling the annular volume. and electrically isolating the outer electrical conductor from the another length portion of the inner electrical conductor.
Patent CA-1283869-C (CA)
Title: Heat foam insulation jacket
Inventor: PETRONKO DENNIS A
IPC: F16L59/04
Filed: 1987-08-26
Granted: 1991-05-07
Abstract: ABSTRACT OF THE DISCLOSURE            A unitary removable and reuseable jacket for the thermal insulation of pipe accouterments is disclosed.  The fully-formed generally-rectangular jacket is composed of three layers: a heat and water resistant outer fabric layer, a hardened rigid-cell polyurethane middle layer, and a thin flexible heat-shrinkable plastic inner layer. The inner and outer layers are joined together by perimeter seams and a transverse center seam which form two pockets adapted to contain the polyurethane foam middle layer.   Said inner and outer layers are formed at time of manufacture while the middle layer is formed during  the application process.   During the application process, an exothermic chemical reaction is generated by the combination of the chemicals polyol and isocyanate which are inserted between the inner and outer layers through holes contained in the outer layer, to form a rapidly expanding and hardening rigid cell polyurethane foam middle layer.  During the application of the jacket around the accouterment, in response to the exothermic chemical reaction, the inner layer shrinks to fit the exact shape of the underlying pipe, as does the rigid-cell middle layer which is being formed.          When installation is complete, the jacket may be removed and reused by using pressure to "crack" the transverse seam dividing the middle layer into two pockets which are positioned on opposite sides of the accouterment.
Patent CA-1299904-C (CA)
Title: Hydrid former for a paper machine
Inventor: KOIVURANTA MAURI
IPC: D21F9/00
Filed: 1987-09-22
Granted: 1992-05-05
Abstract: (57)  Abstract of the Disclosure Hybrid former for a paper machine, which said former comprises a lower-wire (10) loop, which forms a single-wire dewatering zone (10a), in which water is removed from the web (W) being formed by means of dewatering members placed inside the wire loop through the lower wire (10), and an upper-wire unit (50), which includes an upper-wire loop (20), which forms a twin-wire second dewatering zone after the first dewatering zone together with the run of the lower wire (10).  The former comprises a hollow-faced (21') first forming roll (21) fitted inside the upper-wire loop (20), at (A) which said forming roll the said second, twin-wire dewatering zone begins, which said zone is curved upwards within a certain sector (a) of this forming roll (21).  After the forming roll (21) a forming shoe (14) fitted inside the lower-wire loop (10) guides the second dewatering zone, which said forming shoe (14) is provided with a curved deck (14a) guiding the lower-wire loop (10). On the twin-wire dewatering zone between the first forming roll (21) and the forming shoe (14) deflector units (100,110) are fitted both inside the lower-wire loop (10) and inside the upper-wire loop (20), by means of which said deflector units sufficiently strong impulses improving the formation are produced, which act upon the web (W) that is being formed from both sides.
Patent CA-1285383-C (CA)
Inventor: HOERVALLIUS TORGNY
IPC: G01B11/275
Filed: 1987-09-28
Granted: 1991-07-02
Abstract: Method and arrangement for the measurement of wheel alignment angles in the front axle and suspension assembly of a motor vehicle A b s t r a c t Proposed  in  accordance  with  the  invention  is  a method of measuring the camber, KPI and caster wheel alignment angles in the front axle and suspension assembly of a motor vehicle without the need for recourse to a levelled surface or to any gravitation--sensing  instruments  for  the purpose  of  the measurements.  One front wheel at a time is measured, for which purpose the wheel is fitted with a projecting pin parallel to the wheel axle intended to support a laser beam machine which emits a beam perpendicular to  the  wheel  axle.  A  screen  marked  with  reference  lines  is positioned at a certain distance away from the wheel, initially in front of, and then alongside the wheel, with the direction of the reference  lines corresponding to the direction of the reference plane of the vehicle. By causing the  Laser to rotate about the pin, and by causing the wheel to execute steering movements with the laser fixed to the pin, the laser beam can be made to "draw" lines on the screen, which lines produce angles with the reference lines of the screen in accordance with the camber, KPI and caster angles  of  the  wheel.  In  order  to  be  able  to  carry  out  the measurements rapidly and accurately, and at the same time to have the results of measurement recorded, the use of a special design of the aforementioned screen is proposed, more specifically in the form of a measurement panel (60) equipped with a pointer (80), to which panel a sheet of paper bearing a scale (90) can be secured. The results of measurement are recorded on this automatically by the operator making a mark with a pen in an opening (81) in the pointer (82) after every measurement adjustment.       (Fig. 24)
Patent CA-1314288-C (CA)
Title: Preparation of sulfatobetaines
Inventor: BRAUN GEROLD
IPC: C07D213/20
Filed: 1987-10-09
Granted: 1993-03-09
Abstract: Abstract of the Disclosure:  Sulfatobetaines are prepared by reacting an addition compound of sulfur trioxide and a tertiary amine with an alkylene carbonate.
Patent CA-1290637-C (CA)
Title: Detergent composition
Inventor: CLEMENTS ANTHONY H
IPC: C11D3/22
Filed: 1987-10-16
Granted: 1991-10-15
Abstract: ABSTRACT          A detergent composition especially suitable for washing coloured fabrics includes a polymer mixture comprising a)   an alkalimetal carboxymethyl cellulose;   b)   a vinylpyrrolidone polymer such as PVP with a molecular weight of 40,000; and c)   a carboxylate polymer such as polyacrylate or maleic acid/acrylic acid copolymer.            The compositions optionally contain a peroxyacid bleach system.  Improved colour care of fabrics is obtained compared with any one or two of these polymers.
Patent CA-1298911-C (CA)
Title: Single reel tape cartridge used with a leader block
Inventor: GELARDI ANTHONY L
IPC: G11B23/107
Filed: 1987-12-04
Granted: 1992-04-14
Abstract: ABSTRACT OF THE DISCLOSURE    A single-reel tape cartridge containing a reel of tape with a free end attached to a leader block secures the leader block in a leader block receiving well when the tape is stored in the tape cartridge.  A rib is formed on one of the side walls of the tape cartridge to prevent the leader block from being driven into the tape cartridge by an external force.
Patent CA-1304536-C (CA)
Title: Method of manufacturing halogenated aromatic polysulfone compounds and the compounds so produced
Inventor: GUIVER MICHAEL D
IPC: C08G75/23
Filed: 1987-12-11
Granted: 1992-06-30
Abstract: TITLE    "A Method of Manufacturing Halogenated Aromatic Polysulfone Compounds and the Compounds so Produced"     INVENTORS                          Michael D. Guiver Oleh Kutowy ABSTRACT OF DISCLOSURE          Halogenation of Udel (trademark) and Radel (trademark) polysulfone occurs readily by electrophilic substitution.  The reactive substltuelon position is situated ortho- to the aryl ether linkage in the Bisphenol-A portion of the repeat units.  Halogenated polysulfone are obtained by reaction of the polymer with elemental halogen.  Thus, a solution of Udel polysulfone in chloroform, treated with excess bromine at room temperature, gives dibrominated polysulfone III in high yield.  The degree of substitution after 18-24 hours is typically 1.80 to 2.05 by bromine analysis.  Similar results are obtained by reaction of the polymer with elemental chlorine.  Lower degrees of substitution are obtained with shorter reaction times or using lesser amounts of halogen.
Patent CA-1307248-C (CA)
Title: Minimum fastener, disposable lightweight diaphragm compressor
Inventor: BRAMSTEDT DAVID
IPC: F04B45/04
Filed: 1988-01-20
Granted: 1992-09-08
Abstract: ABSTRACT     A diaphragm compressor composed of non-metalic parts capable of being manufactured and assembled so inexpensively as to be suitable for one-time use.  Conventional expensive fasteners such as screws are eliminated and assembled parts are joined by press fitting, sonic welding or similar inexpensive functionally similar means.
Patent CA-1290795-C (CA)
Title: Thermal circuit breaker
Inventor: MERCHANT DONALD K
IPC: H01H71/16
Filed: 1988-02-24
Granted: 1991-10-15
Abstract: ABSTRACT OF THE DISCLOSURE      An  improved  thermal  circuit  breaker  is disclosed, featuring a U-shaped bimetallic element which latched an escapement locking arm which holds a  spring biased moving  contact against a fixed contact when the breaker is in the contacts closed position.     The improved  thermal  element  has terminal portions which are of lesser electrical resistivity than are other portions of the element. The  relative  orientation  of  the metals  of  the bimetallic element  in the terminal portions are reversed with respect to their orientation in the remainder of the bimetallic element.   In this way ambient temperature compensation is provided to the breaker such that the current rating of a given breaker does not vary with variation in ambient temperature.
Patent CA-1322082-C (CA)
Inventor: SHETH PARESH J
IPC: B29C71/02
Filed: 1988-03-07
Granted: 1993-09-14
Abstract: ABSTRACT OF THE DISCLOSURE     A breathable polyolefin film is prepared by melt embossing a highly filled polyolefin film to impose a pattern of different film thickness therein and by stretching the melt embossed film to impart greater permeability  in the areas of reduced thickness in comparison to the areas of greater thickness.
Patent CA-1283168-C (CA)
Title: Capacitance measuring circuit
Inventor: WATSON CHARLES W JR
IPC: G01R27/26
Filed: 1988-03-08
Granted: 1991-04-16
Abstract: ABSTRACT       A circuit for measuring the capacitance of a variable capacitor by charging the variable capacitor to a fixed voltage at the same time that a fixed reference capacitor is charged to an output voltage which upon balance of the circuit will represent the value of the variable capacitor. The charged capacitors are connected in a series circuit which may include a fixed sampling voltage during the next phase of the two phase measuring cycle and the charges are allowed to redistribute.  The voltage drop across the reference capacitor at the end of the redistribution of charge is compared to a predetermined value established as the balance value and the output voltage is varied in sense and direction to tend to bring the voltage drop to equality with the balance value so that the balance value after a number of measuring cycles will be representative of the capacitance of the variable capacitor.  A second reference capacitor which is switched between the sampling voltage potential and circuit common can be added to the network by connecting it to the node.  This added reference capacitor will provide for offset in the range to be measured.  If the variable capacitor is a capacitive humidity sensor the reference capacitors and the variable capacitor should be constructed at the same time by the same process and of the same materials so that they all have the same characteristics thus making unnecessary any trimming of the circuits used for measuring the variable capacitor.
Patent CA-1305720-C (CA)
Title: Process for the preparation of aminocarbonylmethanoic acids of phosphorus
Inventor: KLEINER HANS-JERG
IPC: C07F9/30
Filed: 1988-03-09
Granted: 1992-07-28
Abstract: ABSTRACT             A process for the preparation of aminocarbonyl acids of phosphorus of the general formula I                                             (I) wherein R1 means OH or C1-C3-alkyl which comprises reacting a cyano halide of phosphorus of the general formula II                                                (II) with at least the stoichiometric amount of water, in formula II R2 meaning a halogen having an atomic weight in the range of from 35 to 80 or C1 - C3-alkyl and Hal being a halogen having an atomic weight in the range of from 35 to 80.
Patent CA-1293277-C (CA)
Inventor: BORTOLI ETTORE
IPC: A63C7/00
Filed: 1988-03-22
Granted: 1991-12-17
Abstract: A BRAKE FOR SKIIS WITH ARMS FITTING WITHIN THE PLANE OF THE SKI AND BEING RAISED         DURING NORMAL SKIING OPERATION               ABSTRACT OF THE DISCLOSURE          A brake for skiis is described which comprises a frame  (12), a pair of arms (1 and 2) made of plastic elastic material, disposed in position corresponding to the rear of each of the skiis, a bracket (11) having wings (9 and 10).  The bracket is connected to the frame.  The brake comprises a rod (3) having rear ends and having two elbows (4 and 5) curved towards the interior, the rod rotating on the elbows (4 and 5) and widening at the end corresponding to the front of each of the skiis in the shape of an omega (6).  The ends of the arms are inserted within the rear ends of the rod, the bracket having shaped wings (9 and 10). The rod (3) rotates on point (7 and 8).  The rod is held in place by the shaped wings, and is fixed to the device used for hooking each ski to boot.  The arms are raised to an upper position fitting within the plane of the ski   during the normal skiing operation and are lowered, diverge and penetrate into the snow when the boot becomes unhooked from the ski.
Patent CA-1292480-C (CA)
Title: Method of purifying 2,4-xylenol
Inventor: MIURA TOHRU
IPC: C07C37/86
Filed: 1988-05-27
Granted: 1991-11-26
Abstract: ABSTRACT OF DISCLOSURE 2,4-xylenol can be obtained with a high yield and high purity in the purification of a crude 2,4-xylenol isomer mixture containing 2,5-xylenol by reacting only 2,5-xylenol with an aldehyde in the presence of an aromatic sulfonic acid, converting 2,5-xylenol into a xylenol-aldehyde condensate and, subsequently, separating the same from 2,4-xylenol.
Patent CA-1306969-C (CA)
Title: Resid hydrotreating with high temperature flash drum recycle oil
Inventor: MCDANIEL NORMAN K
IPC: C10G45/16
Filed: 1988-07-05
Granted: 1992-09-01
Abstract: ABSTRACT OF THE DISCLOSURE    Resid hydrotreating conversion of resid can be sub-stantially increased by blending the resid with high-temp-erature flash drum oil before being hydrotreated in a train of ebullated bed reactors.  The high-temperature flash drum oil also improves the overall thermal effi-ciency of the process.
Patent CA-1308253-C (CA)
Title: Fuels for otto engines
Inventor: MARTISCHIUS FRANZ-DIETER
IPC: C10L1/22
Filed: 1988-07-21
Granted: 1992-10-06
Abstract: Abstract of the Disclosure: The  invention  relates  to  fuels for  Otto engines con-taining small proportions of the alkali-metal or alka-line-earth-metal  salts  of  amic  acids  of  the  general formula or  of  analogous  partial  amides  of  tricarboxylic  or tetracarboxylic  acids  whose  carbamoyl  groups have  the general formula R1R2N-CO-, where  A  is  the  bivalent  radical  vinylene,  ethylene, trimethylene, or tetramethylene and either R1 and R2 are identical  or  different,  substituted  or  unsubstituted alkyls or alkenyls of from 5 to 75 carbon atoms or R' is hydrogen and R2 is the group of the general formula R3R4N-[CnH2nO]x-CnH2n-, where R3 and R4 are identical or different hydrocarbon radicals of from 1  to 18 -- preferably from 4 to 13 --carbon atoms, n is 3 or 4 (or 3 and 4), and x is from 4 to 99.
Patent CA-1333412-C (CA)
Title: Method of magnetizing well tubulars
Inventor: DE LANGE JAN I
IPC: E21B47/022
Filed: 1988-07-26
Granted: 1994-12-06
Abstract: A string of well tubulars, such as a well casing or a drill string, is prior to installation of the string in a borehole magnetized along at least part of the length thereof by creating a magnetic field having flux lines which pass in a substantially longitudinal direction through an elongate section of the string, thereby magnetizing said section such that it has opposed magnetic poles having a polestrength of more than 3000 µWb.