baber/WOPTO huggingface dataset:
Patent CA-1216957-A (CA)
Inventor: HELEN ANDRE
IPC: G06F5/10
Filed: 1983-11-15
Granted: 1987-01-20
Abstract: ABSTRACT          FIFO arrangement for temporary data storage A memory arrangement for temporary data storage of the FIFO type includes a random access memory associated with an input buffer register and two output buffer registers.  The registers may consist of transparent flip-flops. The control system for the arrangement is provided for authorizing reading out from the output register at any time independently of the writing times in the random access memory and for causing reading out from the random access memory in response to an indication that the first output register is empty.  A priority input of said control system makes it possible to interrupt a reading or writing operation when a request for the other operation is received.  The control system has means for detecting full condition and empty condition of the FIFO. The control system further includes a handling logic for the output registers. That handling logic has two flip-flops which respectfully represent the presence of data in the two output registers and a circuit for setting the first flip-flop in response to loading of the first output register during an internal reading cycle in the random access memory and a circuit for emptying the second register and resetting the second flip-flop in response to a reading request by a user.
Patent CA-1220459-A (CA)
Inventor: LECHNER HELMUT
IPC: B26F3/00
Filed: 1983-11-16
Granted: 1987-04-14
Abstract: ABSTRACT OF THE DISCLOSURE     The disclosure herein describes a device for smashing windows in the event of a traffic-accident; the device comprises a holding plate with holes for the attachment thereof, and clips for the accommodation of a hammer; the holding plate consists of a base of T-shaped configuration while the hammer is provided, in the vicinity of the head thereof, with two symmetrical tips and, in the vicinity of the free end of the handle, with a blade for cutting safety belts; in the three end-areas of the T-shaped configuration of the base are pro-tective walls which cover the hammer-tips and the free end of the hammer-handle.
Patent CA-1215428-A (CA)
Inventor: HUDSON ROBERT C
IPC: H04M19/00
Filed: 1984-02-28
Granted: 1986-12-16
Abstract: FLOATING BATTERY FEED CIRCUIT            Abstract A floating battery feed circuit comprising a switching-mode, flyback power converter wherein a capacitor connected to a converter transformer winding develops a relatively low voltage used to energize the converter control circuitry.  The converter control circuitry prevents the operation of the battery feed circuit unless the voltage developed by the capacitor is above a predetermined magnitude.  The power converter advantageously operates in only a constant-power mode regardless of loop impedance.
Patent CA-1198587-A (CA)
Inventor: SMITH WILLIAM
IPC: G09B19/02
Filed: 1984-03-21
Granted: 1985-12-31
Abstract: Abstract of the Disclosure An apparatus for generating arithmetic expressions is disclosed.  It comprises sets of number dice and of operator dice.  The number dice are provided in two different colors, in order to remove ambiguity arising from the non-cumulative operations of subtraction and division, and to provide a means of designating negative numbers if so desired.
Patent CA-1218220-A (CA)
Inventor: PALM JOHN W
IPC: C01B17/04
Filed: 1984-05-14
Granted: 1987-02-24
Abstract: ABSTRACT The Claus process gas is cooled in a condenser to condense most of the sulfur vapor in solid form.  The gas leaving the condenser is then further cooled to con-dense water without producing substantially any sulfur in an undesirable form.  The resulting gas of reduced water content is useful in Claus reaction, particularly the low temperature Claus reaction in which the product sulfur is adsorbed on the catalyst.            GMB:ksb/bcp
Patent CA-1221642-A (CA)
Inventor: BEASLEY ALBERT W
IPC: F02B33/22
Filed: 1984-05-25
Granted: 1987-05-12
Abstract: Abstract Of The Disclosure In a valve in head two-cycle internal combustion engine,  a slave piston and a power piston reciprocate in a pair of parallel cylinders. Valve opened and  closed intake and exhaust  ports re-spectively  communicate with  the slave piston  and power  piston cylinders. The engine  head centrally contains a combustion cham-ber  overlying  a  portion  of both cylinders  and communicating therewith through a valve opened and closed combustion inlet port and a  combustion outlet port respectively communicating with the slave cylinder and power  cylinders so  that a fuel rich mixture, when ignited in the combustion chamber,  mixes with and burns air compressed in the power cylinder. A blower  forces  burned  gases through the exhaust port  when the power  piston uncovers lateral ports in the power  cylinder wall at the end of the power stroke.          An engine head supported rocker arm and shaft assembly, driven by a cam shaft, opens and closes the valves in sequence with the re-ciprocating pistons.
Patent CA-1217916-A (CA)
Inventor: ZVERINA KAREL
IPC: B22D41/50
Filed: 1984-07-12
Granted: 1987-02-17
Abstract: ABSTRACT    The present invention relates to the foundry industry and solves the problem of extended service life of valve closure gate assemblies for foundry ladies.  The valve closure gate assembly of the present invention comprises two mutually slidable heat-resistant gates (12,16) furnished with a pro-tecting layer (22) of an oxide refractory material and having flow-through rings (18,20) made from an oxide refractory material disposed in the openings of the gates.  The respective upper and lower surfaces of the rings are coated with a layer of refractory material.
Patent CA-1254898-A (CA)
Inventor: MATHIAPARANAM PONNAMPALAM
IPC: C07D213/807
Filed: 1984-08-02
Granted: 1989-05-30
Abstract: Abstract of the Disclosure A process is disclosed for the manufacture of quinolinic acid by oxidizing quinoline with ruthenium tetraoxide in the presence of hypochlorite solution in which a certain amount of base is added prior to the inception of the oxidation reaction. The disclosed process provides greatly improved yields of high purity quinolinic acid.
Patent CA-1252764-A (CA)
Inventor: GATTON JOHN R
IPC: B65D5/42
Filed: 1984-08-27
Granted: 1989-04-18
Abstract: SHIPPING CONTAINER FOR MAJOR APPLIANCES                    ABSTRACT OF THE DISCLOSURE          A shipping container for a household appliance is formed from a straight tube member of triple wall cor-rugated fiberboard without any flaps at either the upper or lower ends.  A bottom cap formed from single wall cor-rugated fiberboard has flaps extending upward, overlying and being adhesively secured to the tube member.  A top cap, also of single wall corrugated fiberboard, fits over the top of the tube member and on three sides has flap portions similar to those on the bottom cap glued to the outside of the tube member.  On the fourth side, the top cap has a triple folded flap portion forming a lifting flange which is held in place by pressure-sensitive tape extending over the flange and onto the sidewalls over both the top cap flap portion and the tube sidewall.
Patent CA-1227555-A (CA)
Inventor: FONTENOT MICHAEL L
IPC: H04L12/56
Filed: 1984-09-27
Granted: 1987-09-29
Abstract: ADAPTIVE PREFERENTIAL FLOW CONTROL   FOR PACKET SWITCHING SYSTEM            Abstract Flow control of data packets through a packet switching network to reduce congestion is controlled by an adaptive preferential permit packet (APP) processing from an originating data terminal through each packet switch node of the network to a destination data terminal.  APP requires less buffer storage capacity at each switch node, and enables data packets to enter the network only when there is a permit packet indication that the data packets are likely to reach, and be accepted by, their destination.          The permit packet is sent node to node prior to a transmission of a bulk of data packets.  Each node is equipped to queue buffer a permit packet on a preferential basis ahead of data packets.  The node discards the permit packet if the number of packets awaiting transmission from that node exceeds a prescribed threshold.  This is throttling process, since the originating port times out and resends a permit packet if a permit-return packet is not received within a predetermined time.  Permit-return packet processing, adaptive time-out?controls, and preferential treatment of permit packets are disclosed.
Patent CA-1234244-A (CA)
Inventor: CANNADY JOHN P
IPC: C04B35/589
Filed: 1984-10-12
Granted: 1988-03-15
Abstract: HYDROSILAZANE POLYMERS FROM    [R3Si]2NH AND HSiCl3 ABSTRACT           A process is disclosed for preparing R3SiNH-containing hydrosilazane polymer by contacting and reacting trichlorosilane with a disilazane (R3Si)2NH where R is vinyl, hydrogen, phenyl, or alkyl radicals containing 1 to 3 carbon atoms.  These hydrosilazane polymers are useful, when fired at high temperatures, in the formation of silicon nitride and silicon nitride-containing ceramic materials.
Patent CA-1230498-A (CA)
Inventor: TODA YUICHI
IPC: G01M1/00
Filed: 1984-12-24
Granted: 1987-12-22
Abstract: ABSTRACT OF THE DISCLOSURE         A  method   for  measuring  characteristics   of optical  fibers  including  transmission loss,  transmission bandwidth and cutoff frequency without having to cut the fiber to be measured.  A first optical fiber guides light from a source to one end of a second optical fiber,  the transmission characteristics of which are to be measured.      A  third  optical  fiber  couples  light  emerging  from  the other  end  of  the  second  optical  fiber  to  a  detector.          Structural  parameters  of  the  first  optical  fiber  are selected  such  that  losses  due  to  coupling  between  the first  and  second  optical  fibers  are  negligibly  small except  for  a Fresnel loss due to an air  layer present between the coupled ends of the first and second fibers.          Similarly,  structural  parameters  of  the  third  optical fiber  are  selected  such  that  losses  due  to  coupling between  the  second  and  third  optical  fibers  are  made negligibly  small.    The  output  of  the  light  source  is controlled to emit a constant intensity.
Patent CA-1253687-A (CA)
Title: Enveloppes de cowpers ou appareils analogues
Inventor: ROLLOT PIERRE
IPC: C21B9/06
Filed: 1985-01-17
Granted: 1989-05-09
Abstract: Enveloppe pour cowper ou appareil de réchauffage d'air, comprenant une paroi réalisée en tôle soudée, et comportant une deuxième paroi en tôle soudée, extérieure et parallèle à la première. Les deux parois délimitent entre elles un espace rempli d'un matériau de remplissage comportant de la grenaille d'un alliage léger, aluminium ou alliage d'aluminium par exemple, noyée dans un liant à base de résine thermo-durcissable. On améliore ainsi considérablement la durée de vie de ces appareils et le procédé de doublage et de renforcement est d'une mise en oeuvre relativement aisée.
Patent CA-1225463-A (CA)
Inventor: HOLZMANN HUBERT A
IPC: F22B1/16
Filed: 1985-03-25
Granted: 1987-08-11
Abstract: A STRIP FOR HOLDING AND PROTECTING ELECTRICAL CONTACTS       __ ABSTRACT            The contacts (4) have a body (4a) intended to pass through an opening in a card (5) and to be brazed on one side (5a) thereof, and a head (4b) of larger width than the body (4a), intended to be positioned on the other side (5b) of the card, this head (4b) being intended to receive a complementary contact.          The strip is formed of a band (1) of plastic material resisting the heat released during brazing and having cells (2) opening on one side, these cells being adapted to receive sealingly, by elastic deformation, the heads (4b) of the contacts (4) and being spaced apart according to a given pitch.          With this type of strip, a large number of contacts (4) can be positioned in a single operation on a printed circuit card (5), the heads (4b) of the contacts being protected during the brazing and washing operations from contaminants.
Patent CA-1227759-A (CA)
Inventor: PETRY ESTON F
IPC: B65G53/52
Filed: 1985-03-29
Granted: 1987-10-06
Abstract: Vibration Method for Unplugging a Slurry Pipeline Abstract Method for unplugging a pipeline filled with fluid and solid material by blocking the pipeline below the plugged portion, injecting pressure pulses into the pipeline on both sides of the plugged portion until the plugged portion becomes fluidized and then forcing water into and through the plugged portion to remove the plug.  The method further contemplates controlling the frequency and the phase of the injected pressure pulses to best match the length of the pipeline between the injected pulses so that the pulse applied to each side of the plug is out of phase.
Patent CA-1201225-A (CA)
Inventor: MILLER EDWARD B
IPC: H04M11/00
Filed: 1985-05-02
Granted: 1986-02-25
Abstract: METHOD AND APPARATUS FOR CONTROLLING     DISTRIBUTED ELECTRICAL LOADS  ABSTRACT OF THE DISCLOSURE           An apparatus for controlling distributed electrical loads including a microprocessor based central controller coupled via a twisted pair bidirectional data line to a plurality of microcomputer based transceiver decoders.  Each transceiver decoder is coupled to a plurality of relays, each relay associated with a particulary load to be controlled.  Override switches and sensores, coupled to transceiver decoders provide overrride request and information related to ambient conditions at the site of a load.  A user defined data base includes sub-sets of relays called sectors, patterns of relay states, remote switches, a time dependent schedule and conditioin responses.  A communication protocall and arbiration scheme provide for interactive communication between the central controller and each transceiver decoder with interfacing with the operation of any other transceiver decoder.  Enhanced data storage capacity is achieved through dynamic allocation of memory space for pattern data.
Patent CA-1241409-A (CA)
Inventor: HWANG EDDIE Y
IPC: F01K7/16
Filed: 1985-06-21
Granted: 1988-08-30
Abstract: ABSTRACT OF THE DISCLOSURE         In a steam turbine control system three overspeed protection  circuits  (OPC)  are provided,  each one being identical to the others  and each having a programmable digital  computer  in  two-way  data  communication  with  a master controller, as well as with the other OPCs.  Speed transducers  adjacent  the  turbine  shaft  provide  speed transducers to the respective OPCs which calculate extreme-ly precise RPM values utilizing an adaptive filter in the derivation process.
Patent CA-1229617-A (CA)
Title: Process for the preparation of dimethylmaleic  anhydride
Inventor: BAUMANN MARCUS
IPC: C07D417/04
Filed: 1985-08-13
Granted: 1987-11-24
Abstract: Process for the preparation of dimethylmaleic anhydride Abstract of the Disclosure The reaction of maleic acid, fumaric acid and/or maleic anhydride in the presence of N-acylated heterocyclic amidines and at elevated temperature affords dimethylmaleic anhydride in good yield. Catalytic amounts of the amidine employed are sufficient for said reaction.
Patent CA-1266258-A (CA)
Inventor: ABRAMS JACK S
IPC: G06F3/12
Filed: 1985-08-26
Granted: 1990-02-27
Abstract: ABSTRACT    A printer apparatus for a document handling machine is adapted to obtain a signal from a series of information-bearing marks on a first document and transmit that signal to the control device for the printer apparatus to initiate the printing of an image such as a bar code on a second documemt which is to be furnished in a mailing envelope along with the first document.  The printer apparatus automatically removes the second document from a hopper, advances the second document to a printing station, lowers a print head module to the printing station over the second document, and delivers the imprinted second document to the transport raceway of a document insertion machine.
Patent CA-1240607-A (CA)
Inventor: KASUGA YOSHIAKI
IPC: B65B13/22
Filed: 1985-09-25
Granted: 1988-08-16
Abstract: ABSTRACT   A feed roller is usually rotated at a high speed; a return roller is fitted to a return shaft rotated at a low speed through a one-way clutch; a rocker roller driven at a high speed is brought into press-contact with the return roller so that the return roller is rotated at a high speed in accordance with the high speed rotation of the rocker roller thereby performing the primary tightening operation for a band; then, the return roller is engaged with the return shaft by the function of the one-way clutch when the rotational speed of the return roller coincides with that of the return shaft, thereby performing the secondary tightening operation with a strong pulling force.  The strapping machine having the above mentioned construction provides noiseless and speedy operations for strapping the band around a package.
Patent CA-1252555-A (CA)
Inventor: DOOLEY JOHN G
IPC: G01N29/22
Filed: 1985-12-11
Granted: 1989-04-11
Abstract: IMPROVED PRESSURE VESSEL TESTING                    Abstract of the Invention .           Pressure vessels are tested for structural integrity by recording acoustic events generated in the vessel's walls while it is immersed in water and subjected to internal pressure above the vessel's working pressure.   Acoustic events are recorded by sensors fixed either to the wall of the vessel or to the walls of the water container in which the test is conducted.  In preferred form, the vessel is water filled throughout the test and its volumetric increase with pressure is measured in an initial over-pressurization.
Patent CA-1267817-A (CA)
Inventor: AL-JAROUDI MOHAMMED Y
IPC: F16C33/20
Filed: 1986-01-02
Granted: 1990-04-17
Abstract: VACUUM IMPREGNATION OF SINTERED MATERIALS WITH               DRY LUBRICANT                   Abstract A method for vacuum impregnation of  sintered materials preferably vacuum impregnation of sintered bearings parts with dry lubricants. The impregnation is performed in the following way. The cleaned parts (1) to be impregnated are placed in a glass basin (2) containing a mixture of, for example, molybdenum disulphide and graphite, a termosetting resin, a solvent and a termosetting resin extender. The glass basin is placed in a vaccum chamber (3) and the vacuum chamber is then vacuum pumped for a sufficiently long time in order to evacuate the air from the pores of the sintered parts. After that air is again let in into the vacuum chamber until normal air pressure is reached. The sintered parts are taken out  and are allowed to air dry. The coating is then cured.
Patent CA-1250954-A (CA)
Inventor: CONKLE CECIL
IPC: G11C7/12
Filed: 1986-02-06
Granted: 1989-03-07
Abstract: PROGRAMMABLE REFERENCE VOLTAGE GENERATOR FOR A READ ONLY MEMORY          Cecil Conkle Qazi Mahmood ABSTRACT     A read only memory (ROM) includes a series of bit lines biased by a reference voltage lead (102).  The reference voltage lead (102) is connected to a first reference voltage generator (100) having an output imped-ance of 25 ohms and a second reference voltage generator (104) having an output impedance of 75,000 ohms.  When the ROM is deselected, the first reference voltage generator (100) turns off and the bit lines are biased by the second reference voltage generator (100).  However, when the ROM is selected, the first reference voltage generator (100) is turned on and biases the bit lines.  In this way, a ROM is provided which can operate in a low power mode without decreasing the access time when the ROM goes from a dese-lected state into a selected state.
Patent CA-1268982-A (CA)
Inventor: CAVALLARO ANTHONY
IPC: G03C1/06
Filed: 1986-05-07
Granted: 1990-05-15
Abstract: HIGH CONTRAST PHOTOGRAPHIC ELEMENTS   EXHIBITING REDUCED PEPPER FOG  Abstract of the Disclosure A negative working photographic element is disclosed capable of producing a high contrast silver image.  The photographic element is comprised of surface latent image forming monodispersed silver halide grains having a mean diameter of less than 0.7 µm, a contrast enhancing arylhydrazide, and, in an amount sufficient to reduce pepper fog while maintaining high contrast a polyhydroxybenzene and a carboxyalkyl-3H-thiazoline-2-thione.
Patent CA-1264167-A (CA)
Inventor: HONEGGER WERNER
IPC: B65H39/06
Filed: 1986-06-30
Granted: 1990-01-02
Abstract: INVENTION:  METHOD AND APPARATUS FOR OPENING PRINTED PRODUCTS          WHICH HAVE BEEN FOLDED OFF-CENTER               ABSTRACT OF THE DISCLOSURE         Printed products to be opened are held at their folded or spine edge and, with their open or fan edge located opposite to this folded edge, are fed forward with their fan edge  leading  into an opening or  spreading device or apparatus.  A lower portion of the printed products possesses a leading edge section or marginal lap section due to an off-center fold.  Circulatingly driven grippers or clamps grip this lower portion of the printed products in the region of the leading edge section and guide it along a downwardly and backwardly curved path.   The printed products are simultaneously further transported or conveyed by means of feeders or feeding devices.  Both portions of each printed product (i.e. the upper and the lower portions) are thus separated from one another.  A collating conveyor of a collating drum or cylinder can be inserted into the opening thus formed between both product portions.  Such a collating drum or cylinder may possess a plurality of circulatingly driven collating conveyors.
Patent CA-1263479-A (CA)
Inventor: KOSIKOWSKI THOMAS
IPC: C25D17/06
Filed: 1987-02-27
Granted: 1989-11-28
Abstract: ABSTRACT OF THE DISCLOSURE         A device for inserting board-shaped parts to be elec-troplated in and/or removing them from a suspension rack, by means of which these parts are suspended in an electroplating bath, comprising grippers which grip the respective board-shaped part with a force exerted in the lifting direction and/or lower-ing direction, pneumatically operated suction cups which grip one or both side faces of the board-shaped part and secure the same against tipping and a common lifting frame on which the grippers and suction cups are accommodated.
Patent CA-1274692-A (CA)
Inventor: NEVERS ASHLEY D
IPC: C10L1/22
Filed: 1987-06-02
Granted: 1990-10-02
Abstract: Abstract of the Disclosure A process for preventing odor-fading of liquefied petroleum gas odorized with organosulfur compounds wherein the gas is stored in containers having new or recently cleaned interior surfaces, such surfaces having been pretreated with benzotriazole, tolyl triazole, mercapto-benzothiazole, benzothiazyl disulfide or mixtures thereof.
Patent CA-1273717-A (CA)
Inventor: OPHEIJ WILLEM G
IPC: H01L31/09
Filed: 1987-06-25
Granted: 1990-09-04
Abstract: ABSTRACT         A position-sensitive radiation detector (1), which on a plane surface comprises at least two adjacent reverse-biased radiation-sensitive diodes, comprises a bias circuit (20) for establishing differences in the reverse voltages across the diodes in order to adjust the boundary (15) between the radiation-sensitive areas of the diodes. To adjust the position of the boundary (15) relative to the locations where a radiation beam is incident on the detector (1) use can be made of the photoelectric currents generated in the radiation-sensitive diodes by the radiation beams (16;b) for comparing the actual position of the boundary with the desired position of the boundary. The position-sensitive radiation detector (1) is particularly suitable for use in the focus-error detection system of an optical read and/or write apparatus. (Figure 4).
Patent CA-1255340-A (CA)
Inventor: BOOMER TED
IPC: A63B69/00
Filed: 1987-07-22
Granted: 1989-06-06
Abstract: ABSTRACT OF THE DISCLOSURE            A mechanical surf board and an elongated support bar beneath the surf board to which the board is pivoted for transverse pivotal movement. The support bar is connected at one end to a power source for movement in a circular path about transverse axis crosswise of the board. The other end of the support bar is pivotally connected to an upright support rod. The board is locked to the support bar in various positions of pivoted adjustment.