baber/WOPTO huggingface dataset:
Patent CA-1107086-A (CA)
Inventor: MORSE ROBERT L
IPC: F25B40/00
Filed: 1979-12-04
Granted: 1981-08-18
Abstract: ABSTRACT OF THE DISCLOSURE      A heat exchanger in a suction accumulator for the compressor of a refrigeration system wherein the suction accumulator comprises a storage vessel having a liquid and gaseous refrigerant inlet, and means within the vessel defining a fluid passageway for separat-ing the gaseous and liquid components and conducting the gaseous component and a controlled amount of liquid out of the storage vessel to the inlet of the compressor.  This fluid passageway may comprise a generally U-shaped conduit or, alternatively, a U-shaped flume formed by a vertical weir member.  The heat exchanger comprises a jacket disposed over at least a portion of the surface of the gaseous refrigerant conduit or weir member and is spaced therefrom so as to form a second fluid passageway, which is sealed from the gaseous refrigerant passageway and the interior of the vessel.  An inlet and outlet lead from the second fluid passageway out of the storage vessel.
Patent CA-1127743-A (CA)
Title: System for creating a servo control signal
Inventor: SLATER DAN
IPC: G05B19/25
Filed: 1980-01-14
Granted: 1982-07-13
Abstract: SYSTEM FOR CREATING A SERVO        CONTROL SIGNAL                  Abstract of the Disclosure A system for creating a control reference signal for a remote electrical servo device having a movable output unit wherein the velocity and position of the output unit are controlled by the vector magnitude of the control reference signal.  This system includes a digital circuit for creating a first fixed analog signal indicative of a known or desired velocity for the unit during a preselected controlled time interval and a second digital means for creating a desired time base positional profile during the preselected time interval. An encoder arrangement is employed for detecting the actual time base positional profile of the servo output unit during the given time interval so that an analog signal generally proportional to the algebraic difference between the actual and desired time base positional digital profile can be created at various times during the time interval.  The control reference signal is then created by a summing circuit as a function of both the first and second analog signals the first of which is proportional to a desired velocity and the second of which is proportional to the algebraic difference between a desired and actual position of the servo output unit.
Patent CA-1147854-A (CA)
Inventor: WATROUS ROBERT B
IPC: G11B21/21
Filed: 1980-03-17
Granted: 1983-06-07
Abstract: Abstract A magnetic head arm suspension assembly which supports air bearing head sliders and magnetic transducers comprises a rigid load beam coupled to a box-like arm through a spring element which has flexible legs.  The load beam is seated in a recess in the arm, so that the centerlines of the load beam and of the spring are coincident.  In this manner, the sliders and magnetic transducers, which are mounted to the suspension assembly, are loaded in a direction perpendicular to the planar surface of a moving storage medium and maintained in a parallel plane relative to the planar surface of the medium.
Patent CA-1144335-A (CA)
Inventor: ROEHRIG ADALBERT
IPC: B22D11/12
Filed: 1980-04-03
Granted: 1983-04-12
Abstract: ABSTRACT OF THE DISCLOSURE:         Apparatus for removing cut-to-length hot strand sections from the discharge roller beds of a multi-strand continuous casting installation for steel while simultaneously turning the sections.  The pivot shaft for levers, provided with means for receiving cut-to-length strand sections, is located below a cooling bed positioned laterally of the discharge roller beds and approximately mid-way between the cooling bed and the roller bed remotest therefrom.  In this way and because of the form of the receiving means and of a chute associated with the roller bed nearest the colling bed, it is possible to move a plurality of strand sections, turned through 90°, simultaneously from dif-ferent roller beds directly on to the cooling bed, using only one pivoting device, and to push forward the entire stack of sections.
Patent CA-1163412-A (CA)
Inventor: RICE NIGEL L
IPC: F16L47/03
Filed: 1980-04-08
Granted: 1984-03-13
Abstract: ABSTRACT:    A method for joining together two pipes or a pipe and a pipe fitting comprises inducing a current in ferromagnetic material located in the region of the joint to be formed.  As a result heat is generated to cause melting of the surrounding thermoplastics material and the joint to be effected.  The Curie point of the ferromagnetic material is chosen to lie in the range of temperature suitable for fusion jointing the particular material.  The change in magnetic properties of the ferromagnetic material if the temperature exceeds the Curie point can be used automatically to control the jointing process or to indicate to the operator that this temperature has been reached.
Patent CA-1136586-A (CA)
Inventor: GORLITZ FRANK-OTTO
IPC: B07B1/38
Filed: 1980-04-11
Granted: 1982-11-30
Abstract: ABSTRACT OF THE DISCLOSURE     The exchangeable planar screen includes a screen frame having an open lateral wall and a collecting floor and, above the floor, a meshed fabric; a duct unit assembled of at least two separate and intersecting channels adjoins the open wall of the frame whereby one channel is flush with the collecting floor and the other channel has a funnel-like inlet section adjoining the edge of the fabric and is directed perpendicularly relative to the one channel.
Patent CA-1177220-A (CA)
Inventor: TRUMBAUER DAVID V
IPC: B22C9/04
Filed: 1980-05-20
Granted: 1984-11-06
Abstract: IMPROVED CASTING METHOD                Abstract of the Disclosure A core assembly for use in the casting of molten metal is formed by fabricating a first core, molding a plastic layer around the first core, and molding a second core around the plastic layer.  m e plastic layer is interlocked with an ir-regular outer surface of the first core, and the second core is interlocked with an irregular outer surface of the plastic layer.  The plastic layer is then dissolved with a suitable solvent prior to placing the core assembly into a mold and molten iron being poured.
Patent CA-1126050-A (CA)
Title: Analytical method and apparatus for the  determination of total nitrogen contents in samples
Inventor: ITOH TADAMASA
IPC: G01N31/00
Filed: 1980-05-22
Granted: 1982-06-22
Abstract: ANALYTICAL METHOD AND APPARATUS FOR THE    DETERMINATION OF TOTAL NITROGEN CONTENTS IN SAMPLES          Abstract of the Disclosure The invention concerns an analytical method for the determination of total nitrogen contents in samples.  The method comprises passing an inert gas stream containing substantially no nitrogen through a first reaction tube which is packed with a decomposition catalyst and oxi-dizing agent and maintained at a temperature of 700° to 1100°C, a condenser for condensing unnecessary components in the gaseous products from the first reaction tube, a second reaction tube which is packed with an oxidizing agent and a reducing agent and maintained at a tempera-ture of 400° to 800°C, a moisture-absorbing tube and a carbon dioxide gas-absorbing tube in that order, intro-ducing a liquid sample to be analyzed into the first reaction tube and directing nitrogen gas leaving the carbon dioxide gas-absorbing tube to a nitrogen gas analyzer to determine the nitrogen gas content.  The invention also concerns an apparatus for carrying out such a method.  By means of the invention, nitrogen gas can be determined safely, simply, rapidly and accurately at low cost.
Patent CA-1148884-A (CA)
Inventor: PREISS MICHAEL
IPC: C07D307/56
Filed: 1980-07-04
Granted: 1983-06-28
Abstract: Abstract of the Disclosure The invention relates to optically pure heterocyclic amino acid compounds of the Formula I, as described hereinabove as well as a process for thei preparation involving subject ?, L-compounds to the action of a proteolytic enzyme. The compounds obtained are useful, inter ???????? intermediates for the manufacture of cephalosporins or penicillins.
Patent CA-1157594-A (CA)
Inventor: ECKHARDT GERT
IPC: G08G1/123
Filed: 1980-08-11
Granted: 1983-11-22
Abstract: ABSTRACT OF THE DISCLOSURE           A method for transmitting data between at least one central office and a plurality of mobile radio stations via a relay station by a time multiplex transmission procedure in which a time frame structure is established and the central office transmits on a first frequency to all mobile radio stations via the relay station, which method includes: causing the central office to periodically transmit different messages at arbitrarily selected times, which messages include routine inquiry messages directed to each mobile station in sequence; causing each mobile station to respond to an inquiry message by transmitting a selected short message on a second frequency; causing a selected mobile station to transmit data to the central office by transmitting to the central office an announcement of the intent to transmit data during a first time frame, causing the central office to set aside reception capacity for the data, and subsequently transmitting the data to the central office; and causing the duration of each time frame to vary, on the basis of current transmission requirements, between a minimum value determined by the time required to transmit a routine inquiry to each mobile station and a maximum value determined by the time required to transmit data to or from all mobile stations.
Patent CA-1133333-A (CA)
Inventor: BRASH LESLIE O
IPC: F23C9/00
Filed: 1980-10-06
Granted: 1982-10-12
Abstract: GAS RECIRCULATING APPARATUS WITH INTEGRAL ASH HOPPERS       ABSTRACT OF THE DISCLOSURE              An apparatus for removing particulate matter from a flue gas stream exiting a vapor generator and recirculating said gas back to the generator.  The apparatus includes a back face, a bottom face and a re-circulation duet.  The recirculation duct is located in front of the apparatus, thereby increasing the access area in the vicinity of the generator burners and facilitating maintenance of said burners.  The back face, bottom face and recirculation duct envelope ash hoppers and other internal components of the apparatus.
Patent CA-1162709-A (CA)
Inventor: ESTRADE ROBERT
IPC: B29D30/04
Filed: 1980-10-10
Granted: 1984-02-28
Abstract: Inner tubes for pneumatic tires including a toric cushion made from an elastomer material having cells independent of each other. A process for manufacturing such inner tubes with a mold for preforming and vulcanizing semi-toric elements, the mold includes fingers for molding recessed cavities and an incorporated heating network, the preformed semi-toric elements having undergone a first vulcanization are then joined together and subjected to a second vulcanization in an appropriate apparatus.
Patent CA-1159144-A (CA)
Inventor: MACHUT DAN M
IPC: G11B5/016
Filed: 1980-10-14
Granted: 1983-12-20
Abstract: Abstract of the Disclosure A disk drive comprising a first rotatable spindle for rotating removable flexible disks having magnetic surfaces for recording and retrieval of information and a motor for driving the spindle has an increased storage storage capacity by the addition of a second spindle driven by the motor in a direction opposite to the first spindle.  The information storage capacity of the drive is further improved by increasing the track density of the disks while minimizing track seeking error of the magnetic read/ write head associated with the disk. A stepper motor and lead screw are coupled to the magnetic read/write heads for radially positioning the heads to selected tracks of the received disks.  The lead screw has a V-groove comprised of an alternating ramps and transition zones. As the lead screw rotates, a head carriage assembly having attached the first and second magnetic read/write heads is positioned radially by the transition zones while the ramps function to compensate for angular error of the stepper motor.  By reducing angular error of the stepper motor, a concomitant increase in track seeking speed is achieved by permitting the stepper motor to operate at a greater angular velocity than would be obtainable without the lead screw of the invention.  A further increase in track seeking speed is achieved by maintaining a headload pressure pad in close proximity to the surface of the disk opposite the surface to which the associated magnetic read/write head is closely positioned.  Thus, upon command to contact the head with the magnetic surface of the disk, a reduced delay is achieved thus, improving track seeking speed.
Patent CA-1114803-A (CA)
Title: Dehydrogenation of hydrocarbons with zinc titanate catalyst
Inventor: WALKER DARRELL W
IPC: B01J21/06
Filed: 1980-12-17
Granted: 1981-12-22
Abstract: 28294 DEHYDROGENATION OF HYDROCARBONS WITH ZINC TITANATE CATALYST Abstract of the Disclosure A process is used to dehydrogenate organic compounds to a higher degree of unsaturation by contacting in a first step, the organic compound with a calcined zinc titanate catalyst. In the second step, the catalyst is contacted with oxygen essentially in the absence of the dehydrogenatable organic compound. The first and second steps are repeated sequentially.
Patent CA-1147265-A (CA)
Inventor: HARVEY KENNETH
IPC: A61K8/86
Filed: 1980-12-18
Granted: 1983-05-31
Abstract: ABSTRACT There is disclosed a toothpaste comprising a vehicle containing about 45-85% by weight of liquid phase which contains up to about 35% by weight of sorbitol and at least about 25% by weight of water and a solid phase including about 0.5-10% by weight of a gelling agent, wherein there is present as an agent of the liquid phase which reduces drying of said toothpaste about 5-20% by weight of polyethylene glycol having an average molecular weight between about 900 and 1600.
Patent CA-1151035-A (CA)
Inventor: GOODMAN TORONTA P
IPC: F02B47/02
Filed: 1981-02-04
Granted: 1983-08-02
Abstract: ELECTRONICALLY CONTROLLED FLUID INJECTION SYSTEM           FOR AN INTERNAL COMBUSTION ENGINE                   ABSTRACT OF THE DISCLOSURE           A fluid injection system for an internal combus-tion engine such as a spark-ignition or compression-ignition engine in which an injection nozzle injects a finely divided spray of fluid, such as water or a water solution, into the engine in response to a flow of atomizing air.  The nozzle is connected to a fluid supply reservoir and to the outlet line of an air-injection pump connected to the intake manifold of the engine and to an electronic circuit that includes an inductive pick-up coupled to the ignition system of the engine.  The pump operates in response to engine speed by virtue of its connection to the ignition system and in response to engine load by virtue of its connection to the intake manifold.  As a result, the flow of atomizing air to the nozzle and therefore the rate and magnitude of water injection is responsive to engine speed and engine load.
Patent CA-1171314-A (CA)
Inventor: STOCKBURGER HERMANN
IPC: G06K13/063
Filed: 1981-03-23
Granted: 1984-07-24
Abstract: METHOD AND APPARATUS FOR ALIGNING FLAT DATA SUPPORTS     ABSTRACT OF THE DISCLOSURE:          The method of aligning generally flat data supports of flexible sheet material such as credit cards, identity cards, cheque cards and similar documents includes the steps of engaging at least one edge of the data support and exerting an alignment force thereon; prior to exerting the alignment force on the data support edge, an arching force is exerted substantially normally on at least one main surface of the data support to deform the latter into a generally arched state. Preferably, the data support is deformed into a shape having a generally waved cross-section in a direction perpendicular to the direction of the arching force. At the end of the alignment operation, the data support is restored into its flat shape by a pressure plate urging the data support against a flat supporting face of a receiving member.
Patent CA-1175118-A (CA)
Inventor: HEHL KARL
IPC: B29C45/76
Filed: 1981-04-21
Granted: 1984-09-25
Abstract: ABSTRACT          A potentiometer drive for the displacement trans-ducer of a reciprocating unit which uses a timing belt to drive  the rotary potentiometer and where one belt pulley serves as a control disc to which the drive shaft of the rotary potentiometer is coupled in a direct rigid connec-tion.  The coupling connection is obtained by means of a coupling collet which clamps the end portion of the poten-tiometer drive shaft to a hollow hub of the control disc and the latter to the inner races of two ball bearings.          The potentiometer housing is blocked against rotation in a "floating" configuartion, using a radial pin on the hous-ing which engages a stationary retaining fork in such a way that only circumferential antirotation forces are transmit-table to the potentiometer housing.
Patent CA-1153892-A (CA)
Inventor: PEARCE ROSCOE L
IPC: B01D53/77
Filed: 1981-07-15
Granted: 1983-09-20
Abstract: ASBTRACT OF THE DISCLOSURE        Sour industrial gases containing carbon diox-ide and hydrogen sulfide are treated with aqueous amine absorbents to remove the CO2 and H2S.  The absorbent con-taining or loaded with H2S and CO2 is regenerated and the off gas containing concentrated amounts of H2S and CO2 is treated in a second amine absorber to produce an absorbent loaded with H2S.  This amine is then regenerated to pro-vide an off gas containing a high ratio of H2S to CO2 which can be used as the feed gas to a sulfur recovery unit.  The process is automatically controlled so that the concentration of H2S in the second amine absorber is concentrated and controlled at a desired point so that the off gas has the required H2S/CO2 ratio.     28,065-F              -14-
Patent CA-1196631-A (CA)
Title: Process for the preparation of 1,4:3,6-dianhydro-d-  glucitol 5-nitrate
Inventor: KIEGEL EINHART
IPC: C07D493/04
Filed: 1981-07-17
Granted: 1985-11-12
Abstract: ABSTRACT       The present invention provides a process for the preparation of 1,4:3,6-dianhydro-D-glucitol-5-nitrate, in which, in a particular embodiment. a)  1,4:3,6-dianhydro-D-glucitol is acetylated with 0.5 to 1.5 mole equivalents of acetic anhydride in the presence of a catalyst, a mixture of 1,4:3,6-dianhydro-D-glucitol-2-acetate, 1,4:3,6-dianhydro-D-glucitol-5-acetate and 1,4:3,6-dianhydro-D-glucitol-2,5-diacetate being obtained; b) the mixture is nitrated with nitric acid, a mixture of 1,4:3,6-dianhydro-D-glucitol-2-acetate-5-nitrate and 1,4:3,6-dianhydro-D-glucitol-5-acetate-2-nitrate being obtained, and c)  hydrolysis is carried out with an inorganic base to give 1,4:3,6-dianhydro-D-glucitol-5-nitrate; wherein, in step a), the reaction is carried out in the presence of a base and the 1,4:3,6-dianhydro-D-glucitol-2,5-diacetate is substantially removed before further working up.
Patent CA-1183026-A (CA)
Inventor: CHERVENELEKOV THEO S
IPC: A61C19/00
Filed: 1981-08-17
Granted: 1985-02-26
Abstract: ABSTRACT OF THE DISCLOSURE:          Device for the production of temporary dental crowns having a die and a matrix.  The die is an artificial tooth having a shape closely approximating that of the tooth being restored, a fixing and supporting shaft protruding from the middle of the artificial tooth.  The matrix is cup-shaped with a recess into which an elastic ring is placed, the elastic ring pressing inwardly a plastic foil from which the temporary crown is formed about the die as it is thrust into the elastic ring.  The relaxed internal diameter of the internal ring is smaller than the size of the lower part of the tooth being restored.  Concentri-cally with the space in the open end of the matrix there is provided a socket with an outside flange within which the outer edge of the plastic foil is initially held.  The device can produce temporary plastic dental crowns which closely approximate the shape of the tooth being restored, and it is easy to take the crown off the matrix and the die without any damage thereto.
Patent CA-1161722-A (CA)
Inventor: TERESAKI MASAHIRO
IPC: A24F13/06
Filed: 1981-09-03
Granted: 1984-02-07
Abstract: ABSTRACT OF THE DISCLOSURE   The outer shell of a removable smoke filtering cartridge for fitting inside a cigarette holder is formed from two coaxially abutting tubes separated by a wall with a hole. A tubular inner lip around the hole extends into the space within the first tube, a trough being defined around this lip. A cup is mounted within the first tube remote and facing away from the wall, intercepting across the first tube except for one or more narrow spaces defined between the cup and the first tube inner wall. The parts of these narrow spaces nearer the wall communicate to the space between the cup and the wall. One or more small apertures are formed through the side wall of the cup and communicate the space within the cup to the narrow spaces. A disk is mounted across the first tube against the side of the cup remote from the wall. Smoke passes through a hole in the disk into the space within the cup, passes through the small apertures to enter the narrow spaces, and impinges against the inner wall of the tube, to which the larger tar particles in the smoke stick. Then the smoke passes through the narrow spaces, sweeping these tar particles along and depositing them in the trough, and passes through the hole in the wall into a filter mounted within the second tube, which purifies the smoke of some of the smaller tar particles still in it.
Patent CA-1162960-A (CA)
Title: Latch bolt having crank camming for positive bolt  positioning
Inventor: GATER ARNOLD C
IPC: F16B1/02
Filed: 1981-09-22
Granted: 1984-02-28
Abstract: LATCH BOLT HAVING CRANK CAMMING  FOR POSITIVE BOLT POSITIONING     Abstract of the Disclosure:         A rotatable crank hub has a crank arm slot pivotally connected to the rearward ends of a pair of driving levers, the forward ends of the driving levers being pivotally connected to a longitudinally slideable bolt.  Rotation of the crank hub in opposite directions moves the bolt through the crank arm and driving levers forwardly to bolt extended position and rearwardly to bolt retracted position during which a transverse driving pin between the crank arm and driving lever rearward ends moves into forward vertical slots of the latch frame in the bolt extended position and into rearward vertical slots of the latch frame in bolt retracted position.  A cam projection on the crank hub is slideably resiliently engaged at one side approaching and in bolt extended position and at the other side approaching and in bolt retracted position by a forward leg of a U-shaped spring, a spring rearward leg being engaged with the latch frame.          Thus, the bolt is positively retained in extended and retracted positions by the resilient urging of the driv-ing pin into the forward and rearward frame slots and the spring engagements with the cam projection are preferably formed such that the driving pin is continuously resiliently urged into either of the forward or rearward slots even after positioning in such slots.  Also, the forward frame slots may be formed hook-shaped for more positively retaining the driving pin therein once positioned therein.
Patent CA-1170605-A (CA)
Inventor: MITCHELL KEITH J
IPC: B63B27/32
Filed: 1981-09-24
Granted: 1984-07-10
Abstract: ABSTRACT        A R.A.S. supply ship installation in which winches, power converters for supplying power thereto, and a control unit are located in a unitary structure which can be installed in the ship as a substantially complete unit.  Such a structure can be more speedily installed than similar forms of equipment at present in use and is more economical of deck space.