baber/WOPTO huggingface dataset:
Patent GB-1220080-A (GB)
Title: Process and apparatus for producing heat sealed laminates
Inventor: JAMES ALBERT LUTHER
IPC: B32B37/02
Filed: 1967-12-22
Abstract: 1,220,080. Laminating. A. L. JAMES. 22 Dec., 1967, No. 58267/67. Heading B5N. A film of polyolefin or ether thermoplastics material, treated by electrical discharge or gas flame to render its surface polar and capable of chemically and mechanically bonding to other material, is applied to a substrate which has been heated at least to the heat-sealing temperature of the film so that heat transferred from the substrate to the film causes the latter to become heat-sealed to the former. The substrate may be of kraft, pouch, glassine or sulphite paper, paperboard, ground wood sheet, metal, cellulose, or of thermoplastic material different from that of the film. The film Pe is preferably of polyethylene and may be pretreated by electric discharge or flame and may be pre-printed, but in the apparatus of Fig. 1, it is treated on both surfaces by high-frequency high-voltage current applied by electrodes 19 as it is passed over rolls 18. It is then passed round spreader rolls 20 to remove wrinkles, these rolls having herringbone patterns on their surfaces; to a silicone-rubber-covered nip roll 21 by which it is pressed against a heated roll 13 round which passes a substrate web S which has been heated by a roll 12. A cooling roll 22 engages the roll 21, and, together with the roll 13, is pneumatically actuated to produce the required loading of about 70 lbs. per inch at the nip. The continued heating of the composite around the roll 13 relieves stress in the film. If desired, a foil F may be laminated to the outer surface of the film in the nip between a roll 21b and the roll 13, after which a further film, treated by discharge from electrodes 19a, may be added to the laminate in the nip of a roll 21a, against which the completed laminate L may be withdrawn. The heating and cooling rolls may each have a double shell through which a heat-exchange fluid is circulated. Tensioning pairs of rolls may be provided for the several webs to facilitate replacement of supply rolls. In a modified apparatus, Fig. 3 (not shown), for use with heavy substrates, the substrate is heated by passage through a gas-fired oven and two treated films are simultaneously applied to its two surfaces in the nip between a fixed cooling roll and a movable roll engaged by a cooling roll and, if necessary, sprayed by water.
Patent GB-1411959-A (GB)
Title: Fluid-heating system including an electrode heating-vessel
IPC: F24H1/22
Filed: 1972-12-21
Abstract: 1411959 Electrode heaters K H SCHNEIDER 21 Dec 1972 [28 Dec 1971] 59160/72 Heading F4A [Also in Division H5] A fluid heater comprises an electrolyte 5 in two vessels 1, 1<SP>1</SP> interconnected by two passages 3, 4 to form a closed system, one of the vessels containing electrodes 6 for supplying current to the electrolyte for heating the other a heat exchanger 2 for containing, in use, the fluid to be heated; one passage 3, for vapour, includes a valve operable to control vapour movement the other passage 4 is for liquid electrolyte. A valve 7<SP>1</SP> may be provided in the liquid passageway 4 controlled like the other by vapour pressure or output fluid temperature. A second heat exchanger may be below the first to pre-heat the fluid. In an alternative construction (Fig. 3 not shown) the vessels are concentric. Current passing through electolyte 5 between electrodes 6 heats the electrolyte to boiling. Vapour pressure then forces electolyte into vessel 1<SP>1</SP> reducing the length of electrode immersed hence reducing the current and heat supplied. Eventually an equilibrium is established between head of liquid in vessel 1<SP>1</SP> and vapour pressure and depth of electrolyte in vessel 1. When fluid is drawn off at 11 temperature sensitive switch 8 opens valve 7, 7<SP>1</SP> vapour enters 1<SP>1</SP> condenses on the heat exchanger to heat the fluid within and more electrolyte enters vessel 1 and is heated to boiling. When cock 11 is closed switch 8 closes valve 7 and the cycle is repeated Pressure sensitive switch 9 opens valve 7 if too high a pressure occurs in vessel 1. The apparatus may be used to provide a constant supply of water at variable temperature.
Patent GB-1285748-A (GB)
Title: A semiconductor switching element and a semiconductor switching device involving the same
Inventor: MIZUSHIMA YOSHIHIKO
IPC: H03K17/693
Filed: 1969-12-16
Abstract: 1285748 Unijunction diode switching circuits 16 Dec 1969 [20 Dec 1968] 61295/69 Heading H3T [Also in Division H1] A number of circuits are described which employ a double-base diode as a semi-conductor switching element, the diode having certain essential configurational characteristics which distinguish it from conventional devices of this type (see Division H1). In Fig. 12 the element 1 is controlled by a pulse source 44 coupled, through a transformer 45, between the emitter electrode 15 and one of the base electrodes 13, and by a second pulse source 440 coupled, through another transformer, between the two base electrodes 13, 14. A voltage source 42 provides a drift field between N<SP>+</SP> base regions 3, 4 while a voltage source 46 provides the bias to the emitter region 5 which determines the magnitude of the pulses from sources 44 or 440 which will switch current ON or OFF through the load 43. One or other of the control pulse sources 44 or 440 may be omitted, and a light source may be used to generate additional minority carriers between the emitter region 5 and base region 3. Fig. 16 (not shown) illustrates a memory matrix in which each element is of the type 1 shown in Fig. 12, wherein the emitter electrodes (15) of the elements are connected in rows (X 1,2, ...) and the base electrodes (14) are connected in columns (Y 1,2, ...), the other base electrodes (13) of all elements being earthed. Fig. 17 shows a modification of this circuit in which each element 103 has three base regions in all, the additional base electrodes 13a being connected in rows X 11,12, ... to a read-out circuit 54. In Fig. 18 (not shown) this arrangement is modified again by the provision of two emitter regions for each element, the additional emitter electrodes being connected in rows to a read-out circuit in the same manner as the additional base electrodes of Fig. 17.
Patent GB-1299184-A (GB)
Title: Angled lead-in for high tension electrical equipment, particularly transformers
IPC: H01R13/53
Filed: 1969-12-22
Abstract: 1299184 Two-part couplings R NGIDECKER [trading as NGIDECKER & CO] 22 Dec 1969 [21 Dec 1968] 62410/69 Heading H2E A lead in to an oil filled transformer 1, Fig. 1, comprises an epoxy resin body 3 having a connection rod 4 and socket 5 embedded in it. An end connector 6 having a plug 7 is connected to the end of a cable and is inserted into the body 3. A resin cover 12 is bonded with resin 13 to the plastics cable sheath and the cover 12 is fastened to the body 3 by screws passed through flanges 10, 10a on the body and cover. A core 9 is provided for control of the electric field, a centering piece 8 is provided around the plug 7 and an earthing conductor 15 is also provided. In the embodiment shown in Fig. 2 a connection rod 17 and socket 16 are embedded in a resin body 18 which has screwed on to it a hollow body 19 having shoulders 21 to co-operate with shoulders 20 on the body 18. A paper-composition impregnated insulation cable has connected to it a lug 23c of a plug member 23. A cover 12 is screwed on to hollow body 19 and the hollow body 19 may be filled with an insulating compound through hole 25 to fill space 24.
Patent GB-1291608-A (GB)
Title: Liquid developing apparatus
IPC: G03D5/06
Filed: 1969-12-29
Abstract: 1291608 Photographic processing apparatus ADDRESSOGRAPH-MULTIGRAPH CORP 29 Dec 1969 [9 June 1969(2)] 63024/69 Addition to 1215705 Heading G2A The developing apparatus described in the Parent Specification has the pressure applying means in the form of a blade member.
Patent GB-777074-A (GB)
Abstract: 777,074. Voltage-dividing networks. LINK AVIATION, Inc. Jan. 11, 1955 [Jan. 11, 1954], No. 835/55. Class 40 (8). Phase-shift between the input and output voltages of a voltage divider due to the distributed capacity between the resistive element of the voltage divider and an adjacent conductive body such as a metallic coro or shield is reduced or eliminated by impressing upon the conductive body a voltage derived from the input and output voltages. The input voltage E is applied across the resistance element 13 which lies adjacent a conductive body represented diagrammatically by the rectangle 22. An output voltage xE is derived between a tapping point 18 and the earthed (common) end 15 of the resistance element. The tapping-point 18, the " high " end 14 and the earthed end 15 of the resistance element are connected to a common junction 23 through resistances R2, R1, R3 respectively. These resistances are large in comparison with the resistance of element 13. When they are made equal the potential of the junction 23 is equal to E+xE/3. It is stated that the application of this potential to the conductive body 22, e.g. by a conductor 27, results in the derived elimination of phase-shift. Modifications are described in which (a) the tapping- point 18 is isolated from the junction 23 by, e.g., a cathode follower I1; (b) the conductive body 22 is also isolated from the junction 23 by, e.g., another cathode follower I2. If the gains of the cathode followers are less than unity the resistances R1 and R3 are made somewhat greater than R2. Suitable values of R1, R2, R3 and of elements of the cathode follower circuits (Fig. 5, not shown) are given in the Specification. The invention may also be applied to fixed-ratio voltage dividers and to reactive voltage dividers, e.g. autotransformers.
Patent GB-2001089-A (GB)
Title: Aqueous copolymer dispersion and inks made therefrom
IPC: C09D11/02
Filed: 1978-06-29
Abstract: Aqueous copolymer dispersions having good compatibility with resins and pigments used in ink formulations, which produce inks with improved transfer and good flow characteristics and higher pigment loading and which have improved freeze-thaw stability, contain 1-20% by weight of urea. Particularly preferred compositions contain 0.1-5% by weight of a polyacrylic acid thickener.
Patent GB-2028948-A (GB)
Title: Improvements in or Relating to Self-locking Nuts
IPC: F16B39/02
Filed: 1978-08-23
Abstract: A self-locking nut has a body 10 with an internally threaded bore 13, a passage 16 extending inwardly from an outer face 11 of the nut, and a locking element 18 located therein, which projects from the outer face of the nut, but is restrained from leaving the passage. After tightening the nut, the locking element 18 can be urged inwardly, deeper into the passage 16 to deform the material of the nut body in the region of the inner end of the passage 16, thereby to engage firmly the threads of the nut with those of an element on which the nut is threaded. The locking element may be a hardened steel ball, or bar or rod. The nut may have only one flat as shown, or may be hexagonal, and may be provided with a plurality of passages and associated locking elements. <IMAGE>
Patent GB-2004179-A (GB)
Title: Egg stands
IPC: A47J29/06
Filed: 1978-08-24
Abstract: An egg stand comprises two components 17, 18 defining an aperture for resilient engagement with the outer surface of an egg, the arrangement being such that said aperture may be enlarged so as to be positioned about a hot egg and reduced so that the components engage the egg and retain the same. The components comprise leg portions 19, 20 for supporting the stand on a surface. To grip an egg, the portions 19 are squeezed towards each other whereby the components 17, 18 open about a pivot 16, releasing the portions 19 allowing a spring 21 to move the components 17, 18 against the egg. <IMAGE>
Patent GB-2008361-A (GB)
Title: Method and apparatus for serially transmitting information
IPC: H03M7/40
Filed: 1978-09-29
Abstract: A method and apparatus for serially transmitting data in the form of messages each including a plurality of bytes of data. The message to be transmitted includes first and second eight bit control bytes which are stored in respective first and second registers 520, 550. A change in byte size from a normal eight bit size during the message is indicated by bit D0 in the first register 520 being "0" the byte size after the change being represented by bits D3-D5. The second control byte indicates the location of the change. A counter 400 produces a carry output on an output line 454 for each byte transmitted, such carry output controlling the production of a load control signal for a shift register in which the data bits are entered prior to transmission. As each byte is transmitted, the count in the second register 550 is decremented and when zero is reached therein, the bits D3-D5 are loaded into a control register 560 so that thereafter the counter 400 is recycled through a count corresponding to the new byte size. <IMAGE>
Patent GB-2032076-A (GB)
Title: Crucible furnace
IPC: F27B14/02
Filed: 1978-10-25
Abstract: A crucible furnace (10) comprises a crucible (11) mounted within a cylindrical holder (12) arranged for pivotal movement relative to a supporting steel frame (21). The crucible (11) is held within the holder (12) by a refractory ring (13) having radially inwardly projecting lugs (31) which extend into depressions (32) in the crucible (11). A gas burner nozzle (27) is mounted on the frame (21) and is operative to direct a gas flame through an aperture (26) in the holder (12) and onto the crucible (11). A handle 25 is attached to the holder (12) to facilitate controlled pouring of the molten contents of the crucible (11) through a spout (34) by pivoting the crucible (11) and holder (12) about the common axis of two studs (19) in respective bearing brackets (20). <IMAGE>
Patent GB-2011437-A (GB)
Title: Improved Flame Retarded Thermoplastic Molding Compositions
IPC: C08L33/00
Filed: 1978-11-17
Abstract: An improved flame-retarded thermoplastic molding composition is provided, the composition comprising a thermoplastic resin selected from the group consisting of a high molecular weight linear polyester and a high molecular weight block copolyester, a flame-retarding amount of a flame retardant, and from about 0.05 to about 10% by weight, based on the total composition, of a polyolefin or olefin-based copolymer.
Patent GB-2009454-A (GB)
Title: Improvements in or relating to pressure relief valves
IPC: G05D16/10
Filed: 1978-12-01
Abstract: A pilot operated relief valve has a main relief valve (10) and a pilot relief valve (31) connected between a control chamber (23) and drain. A restriction (16) connects the control chamber (23) to the inlet chamber (22) which is separated from the control chamber by a piston (24) integral with the main relief valve closure member (12). Thus opening of the pilot relief valve against the adjustable force of a spring (14) determines the maximum pressure in the inlet chamber (22). The control chamber (23) can also be connected to drain (70) by a pilot valve (19) which is operated by a force motor (52) against pressure in a feedback chamber (56) connected to the inlet passage (22). The energisation of the force motor (52) can be adjusted to adjust the relief pressure to a value below that at which the pilot relief valve (31) opens. Alternatively the pressure in the feedback chamber (56) can depend on the pressure at at least one side of a load fed via a directional valve from the inlet passage (26). <IMAGE>
Patent GB-2014273-A (GB)
Title: Piston Ring Blank
IPC: B23Q3/18
Filed: 1979-01-09
Abstract: Cast piston ring blanks (1) have a radial bulge (2) which can be located against an abutment (5) by rotation of the blanks with a roller (3) for alignment of the blanks preparatory to machining them. In cutting the gap in the finished piston ring the bulge 2 can be removed. Alternatively the bulge may have a locating notch to engage a roller which drives the blank by engagement with the outer periphery or the notched bulge may be at the inner periphery. <IMAGE>
Patent GB-2013313-A (GB)
Title: Improvements relating to water heaters
IPC: F24D3/08
Filed: 1979-02-01
Abstract: A piped hot water supply is achieved by utilising the heat stored in a heated liquid in a central heating radiator 1. A cold water supply 9 is fed through convoluted tubing 11 disposed in the liquid in the interior 7 of the radiator so that heat transfer occurs between the heated liquid in the radiator and the water in the tubing, hot water emerging through an outlet supply pipe 10 on operating a tap or other form of valve. The convoluted tubing 11 may be inter-connected pipes, spirally wound tubes, or pipes can be defined by two sheets of material forming a series of half channels, the two sheets being welded together to produce the channels for water to pass between the inlet and outlet for the hot water supply. <IMAGE>
Patent GB-2017974-A (GB)
Title: Automatic control of rolling
IPC: B21B37/00
Filed: 1979-03-29
Abstract: To operate a rolling mill to roll metal strip with a satisfactory degree of flatness, signals from tension detecting means 11 located downstream of the mill rolls 3 are used continuously to determine the best symmetrical parabola which fits the shape of the strip and a parameter of the parabola (e.g. the height of its apex above its extremities) is used to bring about an adjustment of the bending of the mill rolls in such a sense as to change the parameter substantially to zero. Signals from the detecting means may be used in addition to control the steer of the mill and adjust the temperature of the roll assemblies along their length. <IMAGE>
Patent GB-2019446-A (GB)
Title: Method for the Dry-Dyeing of Hair
IPC: D06P1/00
Filed: 1979-04-17
Abstract: A method for the dry-dyeing of hair, particularly artificial hair, comprises brushing the hair by means of an applicator comprising a central part 2 composed of porous material impregnated with a colloidal solution containing the desired dye in suspension, this porous part being surrounded by a brush 3, the brushing leaving the hair dry. <IMAGE>
Patent GB-2027781-A (GB)
Title: Improvements in or Relating to Underwater Operations
IPC: B63C11/00
Filed: 1979-06-21
Abstract: Underwater operations are carried out by placing an object (22, 23) at a desired position underwater by pulling it down through the water to an anchoring point 14 and then moving the object from the anchoring point to the desired position. The object may be mounted on a carrier (21) and the apparatus comprising the object and the carrier may be pulled down by a winching device (1, 8, 12) secured to an underwater structure 30 and comprising a winch (11) and a connector 14 for engagement with a connector (27) of the carrier. The object may be equipment for cutting, turning, joining or moving an underwater pipe (30). <IMAGE>
Patent GB-2030035-A (GB)
Title: Planting apparatus
IPC: A01C9/02
Filed: 1979-08-30
Abstract: Apparatus for planting potatoes, including endless conveyors (12, 13) with spaced pockets (16) for the potatoes, means (11) for driving each conveyor along a horizontal run in which the potatoes are transferred in batches onto the conveyor by a cyclically operating transfer member (22) provided with spaced depressions to receive potatoes from trays (21). The potatoes travel down a vertical run and fall to the ground at a planting station. <IMAGE>
Patent GB-2033004-A (GB)
Title: Fluid injection valve
IPC: F02M51/08
Filed: 1979-09-24
Abstract: The valve seat has a substantially semi-spherical seating surface 26b and a spherical valve element 20 is seatable on the seating surface. A plurality of fluid injection nozzles 40 are formed to extend through the valve seat. <IMAGE>
Patent GB-2060743-A (GB)
Title: A control mechanism for vertical slat blinds
IPC: E06B9/36
Filed: 1979-10-11
Abstract: A control mechanism (9) for a vertical slat blind includes a handle (11) which is dependant from a sliding-head (10) and drivingly connected to an operating shaft (3) by a Bowden cable (14) and spur gears (15, 16) mounted on the sliding-head (10). The drive connection transmits rotation from the handle (11) to the shaft (3) which, through respective worm gears (7, 8) carried by wagons (4) slidable on the shaft, alters the pitch of blind slats (6) suspended from the wagons (4). The blind is drawn and-opened by using the handle (11) to slide the sliding head (10) and wagons (4) along the shaft (3), the sliding-head and wagons being interconnected by couplings (17) which ensure the wagons (4) are drawn in succession to regularly spaced-apart positions. <IMAGE>
Patent GB-2034726-A (GB)
Title: Polyester Polyol Compositions
IPC: C08K5/52
Filed: 1979-10-24
Abstract: Polyester polyol liquid compositions comprising:   (a) a polyester polyol having a hydroxyl number of 50-500, an acid number of less than 2 and a halogen content of 17-60% by weight, said polyester polyol being the reaction product of an acid component comprising 50-100% by weight of a halogenated aromatic or cycloaliphatic polycarboxylic acid and 0-50% by weight of a halogen-free aromatic or cycloaliphatic polycarboxylic acid and an alcohol component comprising a dihydric alcohol and optionally a polyhydric alcohol having at least three hydroxyl groups, and (b) an organic phosphorus compound in an amount of from 5 to 50% by weight based on the weight of the polyol composition.   The compositions are useful in the preparation of fire-resistant polyurethanes.
Patent GB-2053657-A (GB)
Title: Shoe fastening
IPC: A43B5/10
Filed: 1980-01-10
Abstract: A shoe is provided with a sliding-clasp fastener (6), a band of elasticized fabric (12) being interposed between the fastener (6) and the tongue (11) of the shoe, the fastener (6) being attached to elasticized fabric strips (9, 10) sewn to the edges of the upper (3) of the shoe. <IMAGE>
Patent GB-2069255-A (GB)
Title: Thyristor circuit
IPC: H01L27/06
Filed: 1980-02-05
Abstract: A silicon controlled rectifier SCR1 having a common gate electrode 3 for turning the device on and off is turned on by applying a positive pulse to a first gate terminal g1 and is turned off by applying a positive pulse to second gate terminal g2 which turns on two bipolar transistors T1 and T2 so as to provide a low impedance current path in parallel with the common gate/cathode path of SCR1. This decreases the current passing between the gate and cathode regions of SCR1 below the level necessary to maintain SCR1 conducting by regenerative action. An integrated semiconductor device is provided Figures 2-4 which is capable of switching direct current with a turn- off gain of the order of 100 and a turn-off time of the order of a few microseconds. A similar device may be constructed to conduct current in both directions so as to form a gate turn-off triac. <IMAGE>
Patent GB-2050380-A (GB)
Title: Phosphorus containing compounds used in the preparation of cephalosporins
IPC: C07D213/65
Filed: 1980-05-02
Abstract: There is described a process for preparing an enamine of formula (IX):   <IMAGE> where R<2> is a carboxylic acid protecting group and R<3> is the residue of a carboxylic acid derived acyl group and where R<5> and R<6> are the same or different C1-4 alkyl or C1-10 aralkyl groups; or taken together with the adjacent nitrogen atom form a heterocyclic ring containing from 4 to 8 carbon atoms and optionally a further heteroatom selected from oxygen and nitrogen; by reacting a compound of formula (XII):   <IMAGE> with an amine of formula HNR<5>R<6>, the reactant of formula (XII) being prepared by reaction of an appropriate enol derivative with a phosphorus reagent. The enamines of formula (IX) are useful in the preparation of 3- hydroxycephalosporins. The compounds of formula (XII) are novel.