baber/WOPTO huggingface dataset:
Patent CA-1155912-A (CA)
Inventor: LEIS MICHAEL D
IPC: H02P7/29
Filed: 1980-06-05
Granted: 1983-10-25
Abstract: ABSTRACT OF THE DISCLOSURE A servo circuit for electronically controlling the operation of an electric motor is disclosed.  The rotational frequency of the motor is converted into a varying frequency waveform by a tachometer.  The tachometer output is applied to a conversion circuit which includes a peak detector that converts the output waveform of the tachometer into a square-wave signal.  The square-wave signal is, in turn, connected to one input of an exclusive-OR gate.  The peak detector square-wave signal Is also applied to a shift register which, after a time delay, applies the same signal to another input of the exclusive-OR gate.  With these connections, the exclusive-OR gate produces a square-wave output whose duty cycle is proportional to the speed of the DC motor.  This output can then be either amplified and applied directly to the electric motor to drive it, or integrated and applied to an amplifier to drive the motor in accordance with standard servo techniques.
Patent CA-1145078-A (CA)
Inventor: BROLIN STEPHEN J
IPC: H04M17/02
Filed: 1980-08-11
Granted: 1983-04-19
Abstract: Brolin-24 COIN SIGNALING SYSTEM       Abstract of the Disclosure A subscriber loop carrier system is shown in which coin first and dial tone first pay stations can be serviced through the carrier system without modifying the central office.  Coin supervisory states are detected at the central office terminal of the system, translated into unique cyclic codes for transmission through the system and detected at the remote terminal by reapplication of the coin supervisory states at the remote terminal.  Coin first and dial tone first modes of operation are accommodated with simple option plugs.
Patent CA-1122020-A (CA)
Inventor: STEDDUM RIDDLE E
IPC: E02B17/00
Filed: 1980-08-15
Granted: 1982-04-20
Abstract: The invention relates to an offshore platform operable for use in Arctic locations where prolonged ice conditions may be encountered. The platform includes a lower barge hull having an exterior configuration in the general shape of a rectangular frustum and being operable to be fixed relative to a desired seabed site. The lateral side walls of the barge hull are heated for facilitating movement of contiguous sea ice upwardly relative to the barge side walls to fail the ice in bending as it advances toward the barge hull. A deck is positioned above the lower barge hull and is supported by a first and second column at an elevation whereby the lower surface of the deck will be above and out of contact with sea ice passing over the hull. The deck is positioned relative to the barge hull in a posture such that at least a portion of the deck extends beyond an imaginary vertical plane projecting upwardly from at least one longitudinal edge of the upper surface of the barge hull.
Patent CA-1173413-A (CA)
Inventor: MAYFIELD JOHN M JR
IPC: F16K31/68
Filed: 1980-08-26
Granted: 1984-08-28
Abstract: Abstract of the Disclosure The invention provides a temperature controlled valve mechanism, which includes a valve housing having a valve inlet for connection with a fluid source.  A valve outlet in the housing is used for draining fluid from the housing. Valve closure members are supported for movement toward and away from the valve outlet between closed and open positions, the valve closure members blocking and closing the valve outlet when in the closed position.  Biasing means urge the valve closure member away from the closed position.  Means defining an expansion chamber are provided in the housing, including means for moving the valve closure member to the closed position against the force of the biasing means upon entry of a pressurized medium into the expansion chamber. The valve mechanism further includes temperature activated venting means for venting and repressurizing the expansion chamber upon occurrence of a predetermined temperature.  The venting of the expansion chamber causes the biasing means to rapidly move the valve closure member from the closed position, causing the valve mechanism to be opened.
Patent CA-1152852-A (CA)
Inventor: BLAIR CHARLES M JR
IPC: B01D17/04
Filed: 1980-10-08
Granted: 1983-08-30
Abstract: TITLE: MICELLAR SOLUTIONS OF THIN FILM SPREADING  AGENTS COMPRISING RESINOUS POLYALKYLENE OXIDE ADDUCTS                 ABSTRACT OF THE INVENTION     The invention provides a homogeneous, micellar solution of a water-insoluble thin film spreading agent, comprising:  (a) from between about 5% and about 75% by weight of resinous polyalkylene oxide adducts; (b) from between about 2% and about 30% by weight of a hydrotropic agent; (c) from between about 2% and about 30% by weight of an amphipathic agent; and (d) from between about 15% and about 90% by weight of water.
Patent CA-1144740-A (CA)
Inventor: GIRARD DONALD A
IPC: F16L3/24
Filed: 1980-10-30
Granted: 1983-04-19
Abstract: ABSTRACT OF THE DISCLOSURE         A tube clamp is disclosed for clamping a continuous length of tubing at a point intermediate its ends as is particularly adapted for use in nuclear power plants and in other installations wherein a relatively large number of tube runs are involved requiring a relatively large number of tube clamps.  The tube clamp comprises a pair of opposed tube engaging members.  Each of the members is provided with a first recess to permit corresponding recesses in the two members to cooperate as a first pair with each other to provide a first through opening for receiving a continuous conduit therein.  Each of the members is also provided with a second recess angularly disposed relative to the first recess and cooperating as a second pair to form a second through opening for receiving a continuous conduit therein.          In addition, means spaced from the recessess are provided for clamping the members together and to a fixed structure whereby the pairs of first and second recesses may be al-ternatively employed to receive a continuous conduit therein.      One embodiment of the invention provides a tube clamp as-sembly which is adapted to alternatively receive tubes of different sizes so that, for example, one tube clamp may be employed for two or more tube sizes thus reducing the number of units to be held in inventory.
Patent CA-1150943-A (CA)
Inventor: DIECKMANN DALE J
IPC: C08K5/36
Filed: 1980-12-09
Granted: 1983-08-02
Abstract: Abstract of the Disclosure A vinyl halide resin stabilizer composition which essentially contains:          (a)  an antimony organic sulfur-containing compound, for example, antimony mercaptoacid esters, antimony alkyl mer-captides, and the like, (b)  an alkaline earth metal salt of a carboxylic acid, such as calcium stearate, and (c)  an alkali metal carbonate, such as sodium carbonate.         These compositions synergistically contribute to the dynamic processing stability of vinyl halide resin  compositions.         Rigid polyvinyl chloride compositions are stabilized against dynamic processing conditions of heat and shearing forces.
Patent CA-1135560-A (CA)
Inventor: PRAZMOWSKI BOGDAN D E
IPC: B01D11/02
Filed: 1980-12-22
Granted: 1982-11-16
Abstract: ABSTRACT OF THE DISCLOSURE           An apparatus for extraction of vegetable oil from vegetable solids, by treatment thereof with solvents, comprises a vessel separated into an upper zone and lower zones by means of a movable perforated plate, upon which the vegetable solids material for extraction can be supported.  Suitable solvent is fed into the bed of vegetable material, and percolated there-through, to extract the oil, the solvent and oil passing downwardly through the perforated plates to collect in a lower zone of the vessel.  Another lower zone of the vessel is adapted to receive the treated vegetable solids after the solvent extraction process, this lower zone being provided with movable cover plates, so that solvent and oil does not fall into this vegetable solids receiving zone.  When the solvent extraction has been completed, the cover for the vegetable solids receiving zone is pivoted away to open the zone, and the perforated plates move to dump the treated vegetable solids into the lower vegetable solids receiving zone, separately from the solvent and extracted oil.
Patent CA-1131579-A (CA)
Inventor: IDDLES ROGER G
IPC: B65G15/52
Filed: 1981-01-15
Granted: 1982-09-14
Abstract: ABSTRACT                     CONVEYOR BELT      A conveyor belt of the honeycomb type in which open-work  belt  sections 2  of cranked  or wavey  form extend between and intermesh pivotally at transverse rods l  which pass  through  apertures  in  longitudinal components 4 of the belt sections and extend alongside main cross components 3 of the belt sections joined in staggered relationship to the ends of the longitudinal components, is strengthened laterally against distortion by additional cross components 5 which extend between and are joined to the longitudinal components at the opposite sides of the transverse rods to the main cross components.  The belt sections are preferably unitary plastics mouldings.  As illustrated the belt sections each extend across the full width of the belt and the longitudinal components at the sides of the belt have sockets 14 defined at their free ends which receive the opposite ends  of the transverse  rods  and retain the transverse rods to the belt sections.
Patent CA-1149257-A (CA)
Title: Process for producing sedimentation-stable anti-  foaming agents
Inventor: MUELLER KARL-HANS
IPC: B01D19/04
Filed: 1981-01-16
Granted: 1983-07-05
Abstract: ABSTRACT For the production of anti-foaming agents precipitated micronized silica having defined physico-chemical characteris-tic data is mixed with silicone oil, homogenized and heated.  These anti-foaming agents can be used in pharmaceutics, in the production of foaming latex emulsions, in the food industry, in detergent formulae, in the textile industry as well as in the paint and varnish industry.
Patent CA-1153604-A (CA)
Inventor: O'CONNOR DONALD T
IPC: G03B1/00
Filed: 1981-02-09
Granted: 1983-09-13
Abstract: PIPELINE INSPECTION APPARATUS  .                     ABSTRACT OF THE DISCLOSURE           Pipeline inspection apparatus as provided including a camera unit and associated illumination means, preferably a strobe flash unit, for recording on photographic film the rectangular images corresponding to generally rectangular internal surface portions of a pipe for detection of defects, a viewing axis of the camera being normal to the axis of the pipe.  Weight means are provided for operating in a manner such as to establish a viewing axis in predetermined angular relation to a vertical plane through the axis of a horizontal pipe.  In one embodiment, the device is supported by resilient cups for movement through the pipe and the entire device is rotatable under the influence of the weight means.  In another embodiment, at least the optical portion of the camera unit is rotatably supported and connected to the weight means.  Magnetic flaw detection means are provided for triggering the camera unit.
Patent CA-1221062-A (CA)
Inventor: EVERT DANIEL D
IPC: B65B23/00
Filed: 1981-02-23
Granted: 1987-04-28
Abstract: ABSTRACT OF THE DISCLOSURE           A package for shipping and storing bags containing compressible material and a method of packaging are disclosed.          The package enables shipment and storage of bags containing com-pressible material in unitized loads with adequate protection using a minimum of packaging material when solving the problem of leaning and uneven compression which would otherwise occur.         The package consists of an essentially rectangular array of bags forming four vertical corners.  The array is comp-ressed as a unit and rigid vertical support means are positioned at least at the vertical corners, and a film of synthetic poly-meric material is provided around the compressed array and the four vertical corners.
Patent CA-1168049-A (CA)
Inventor: WU HSI L
IPC: B65G53/52
Filed: 1981-03-24
Granted: 1984-05-29
Abstract: Abstract of the Disclosure A safety device for protecting a burner of a coal gasification plant against solid blockage. Solid blockage may occur in a burner of a coal gas-fication plant fed  with a mixture of coal parti-cles and fluid.  In order to protect the burner against solid blockage a safety device is proposed which is arranged in the supply line to the burner; by means of this safety device relatively large pieces of solid material, which might cause blockage of the burner can be eliminated from the mixture of coal particles and fluid supplied to the burner.
Patent CA-1150350-A (CA)
Inventor: MORTONSON ROBERT W
IPC: H02P9/00
Filed: 1981-04-14
Granted: 1983-07-19
Abstract: Abstract A detector monitoring the operational status of the field coil circuit in a multiphase alternator and voltage regulator battery charging system is disclosed.  Circuit means monitor a first signal at a first terminal of the field coil circuit.  Means generate sampling intervals on a repetitive basis.  Circuit means interrupt the excita-tion signal supplied to the field coil by the voltage regulator during the sampling intervals.  A second signal is measured during sampling intervals at a second termi-nal of the field coil circuit.  Comparator means compare the first and second signals and produce an output signal when the comparison varies from a predetermined value.
Patent CA-1152110-A (CA)
Inventor: BUCHHOLZ BERNARD
IPC: C07C319/14
Filed: 1981-04-16
Granted: 1983-08-16
Abstract: ABSTRACT     A process is provided for preparing dialkyl sulfides by reacting alkanols and hydrogen sulfide in the presence of a zeolite catalyst that contains a reduced amount of alkali metal cations.
Patent CA-1170157-A (CA)
Inventor: UFERMANN WERNER
IPC: B65G69/04
Filed: 1981-06-08
Granted: 1984-07-03
Abstract: ABSTRACT OF THE DISCLOSURE              A mat-forming apparatus, especially for the produc-tion of particle board, comprises a conveyor grate disposed above a layer-carrying surface, e.g. a conveyor, and below a feeder for scattering the particles onto the surface through the traveling grate.  The lower pass of the con-veyor grate is displaceable in the same direction as the receiv-ing conveyor and is inclined upwardly away from the receiving conveyor in the direction of displacement thereof at an acute angle, this lower pass forming an inclined plane.
Patent CA-1163090-A (CA)
Inventor: CHATTERJI JITEN
IPC: C08B11/193
Filed: 1981-07-13
Granted: 1984-03-06
Abstract: Abstract of the Disclosure Salt water cement slurries having low water loss when in contact with water permeable earth formations and additives for reducing water loss from salt water cement slurries are provided.  The additives are comprised of very low molecular weight carboxymethylhydroxyethylcellulose polymers.  Methods of using the additives are also provided.
Patent CA-1165932-A (CA)
Inventor: GOFF DAVID L
IPC: H01L21/027
Filed: 1981-09-01
Granted: 1984-04-17
Abstract: ABSTRACT OF THE DISCLOSURE A polymeric heat resistant photopolymerizable  composition of a polyamide ester resin containing photopolymerizable groups useful for forming relief structures on electrical devices such as capacitors, integrated circuits and semiconductors; a solution of the composition is applied to a substrate such as a coated silicon wafer which forms an electrical device, dried to form a film, the film is exposed to radiation through a pattern and photopolymerized; the unexposed and unpolymerized part of the film is dissolved off and the resulting relief structure is baked to form a polyimide structure with sharp definition and has good mechanical, chemical and electrical properties; to reduce radiation exposure time and increase the rate of photopolymerization the following constituents are used in the composition:      a radiation sensitive polymerizable polyfunctional acrylate compound and a photopolymerization initiator of an aromatic biimidazole.
Patent CA-1164563-A (CA)
Inventor: IVE JOHN G S
IPC: G06F12/00
Filed: 1981-09-16
Granted: 1984-03-27
Abstract: ABSTRACT OF THE DISCLOSURE A random access memory arrangement for reading data out of and into a random access memory asynchronously, for example, to effect time base correction of a digital television signal, comprises the random access memory having common read and write data terminals, an input circuit for supplying input data to said read and write data terminals for writing in the random access memory, a first output latch circuit connected to the read and write data terminals, a second output latch circuit connected to the first latch circuit, and means for supplying control signals to enable the random access memory to write the input data therein at given addresses in synchronism with write pulses of a write pulse signal, to enable the random access memory to read output data from given addresses therein in synchronism with read pulses of a read pulse signal, the read pulse signal being asynchronous with the write pulse signal, to control the first latch circuit to hold and to supply to the second latch circuit data supplied to the first latch circuit immediately prior to each write pulse, and to pass therethrough to the second latch circuit data supplied to the first latch circuit at all other times, and to control the second latch circuit to hold the data supplied to it by the first latch circuit immediately prior to the beginning of each read pulse until the beginning of the next succeeding read pulse and to supply the data so held to an output of the arrangement.
Patent CA-1161443-A (CA)
Inventor: HEINEMANN ULRICH
IPC: C07D521/00
Filed: 1981-09-18
Granted: 1984-01-31
Abstract: A B S T R A C T   O F   T H E   D I S C L O S U R E           PROCESS FOR THE PREPARATION OF PYRAZOLE     Process for the preparation of pyrazole by reacting hydrazine hydrate with acrolein in an aqueous-organic medium at a temperature between 20°C and 80°C, and oxidising the 2-pyrazoline formed, of the formula                 (I), either directly, or where appropriate after first being isolated, with chlorine or an alkali metal hypochlorite or an alkaline earth metal hypochlorite in water or an aqueous-organic medium at a temperature between 0°C and 60°C, if necessary in the presence of a catalyst.     Le A 20 593
Patent CA-1151129-A (CA)
Inventor: CRAFT JAMES A
IPC: B41J32/00
Filed: 1981-10-09
Granted: 1983-08-02
Abstract: A SINGLE USE RIBBON CARTRIDGE WITH FRANGIBLE RESISTIVE ELEMENT FOR RESTRAINING THE TAKEUP SPOOL            Abstract of the Disclosure In ribbon cartridges which are utilized in cooperation with a spacially fixed driving member engageable with a takeup spool at its periphery to feed the ribbon, it is necessary for the takeup spool to translate away from the spacially fixed driving member as the spool accumulates ribbon and the consumed ribbon forms disks of increasing diameter.  A frangible portion of the cartridge may be utilized in conjunction with its transverse engagement with an extending axle coaxial with the takeup spool to resist the movement of the takeup spool into the chamber of the cartridge except as is forced by the increasing diameter of the ribbon disk formed on the takeup spool.  The frangible section of the cartridge may be formed either during molding operation or as an additional member being added during assembly and will break or tear as the axle of the takeup spool is forced away from the end of the cartridge by the increasing diameter of the ribbon disk and the force of a driving member engaging the ribbon periphery.  The frangible web section of the cartridge is sufficiently weakened to prevent structural damage to the ribbon mechanism while at the same time providing sufficient resistance to insure engagement of the exterior of the ribbon disk with the driver.
Patent CA-1170372-A (CA)
Inventor: TAGUE STEVEN A
IPC: G06F7/483
Filed: 1981-12-09
Granted: 1984-07-03
Abstract: ABSTRACT OF THE DISCLOSURE    A commercial instruction processor executes a decimal divide instruction by counting the number of subtractions by the divisor resulting  in  a  positive  remainder  to  develop  the quotient.          Apparatus  compares  the most  significant  decimal digit  of the divisor with the most significant  decimal digit of the remainder after each  subtraction pass to  predict if the  next subtraction pass  would result  in a negative  remainder.  If  so, a quotient decimal digit is  stored in a memory, the  divisor is shifted one decimal digit position to the  right, and a series of subtraction passes are made to develop the next quotient decimal digit.
Patent CA-1195795-A (CA)
Inventor: SATTLEGGER HANS
IPC: C09K3/10
Filed: 1982-02-08
Granted: 1985-10-22
Abstract: ORGANOPOLYSILOXANE MOLDING COMPOSITIONS                      Abstract The present invention relates organopolysiloxane molding compositions which are capable of storage in the absence of moisture and which crosslink to give elastomers  after the admission of water or steam, and are based on .alpha.,.omega.-dihydroxyorganopolysiloxanes and substances which produce crosslinking, a short-chain siloxane of the general formula   being added, in addition to customary additives.
Patent CA-1178494-A (CA)
Inventor: BOUSQUET HUBERT
IPC: B01J13/02
Filed: 1982-03-09
Granted: 1984-11-27
Abstract: A microencapsulation of varied substances such as aromatic agents, colorings, inks, chemical reactives, pharmaceutical and phytosanitary products, fireproof products, glues, finely dispersed in an aqueous phase, in order to obtain microcapsules that are simulaneously isodiametrical and with regularized diameters, which consists in placing face to place an aqueous solution of polymers and/or hydrosoluble copolymers including at least one of the chemical functions belonging to the group constituted by the radicles -COOH, -OH, -CONH2, -COHNR, -CONRR', -NH2, NHR and -NRR', constituting the material of the capsule containing shell, and a solution of substances to be coated in at least one hydrophobic organic solvent, density close to 1, then submitting the liquid medium thus constituted to a mechanical shearing action corresponding to a shearing coefficient included between 8,000 second-1 and 70,000 second-1, while the medium is maintained at a temperature between 15 DEG  C. and 85 DEG  C. The isodiametrical microcapsules with regularized diameters thus obtained have a particularly attractive application in the manufacturing of registration and transfer materials with paper support by both coating process and impression process, such as Offset.
Patent CA-1173750-A (CA)
Inventor: BORAY JOEPH C
IPC: A61K31/66
Filed: 1982-03-16
Granted: 1984-09-04
Abstract: Abstract of the Disclosure The invention relates to a composition for the control of helminths in animals which contains synergistic active ingredient combination which comprises the individual compounds of the formula I                               (I) and of the formula II               (II),   wherein R1 is the -NH-C00-R3 group, in which R3 is an alkyl radical of 1 to 4 carbon atoms, preferably methyl, R2 is an alkyl radical of l to 4 carbon atoms, preferably n-propyl, phenyl or phenyl substituted by halogen or alkyl, preferably unsubstituted phenyl, and X is -0- ,  -S- or -SO-, including the acid addition salts of the compounds falling under the formula II.     These synergistic compositions are used for controlling helminths, especially nematodes, in animals, The active ingredient combinations can be administered to the animals both as additive to ready prepared solid and liquid feeds and in the form of compositions, together with conventional carriers in solid or liquid form, orally, by injection, or by the pour-on method.