baber/WOPTO huggingface dataset:
Patent GB-1132770-A (GB)
Title: Surgical drapes
IPC: A61B19/08
Filed: 1966-09-12
Abstract: 1,132,770. Surgical drape sheets. PARKE DAVIS & CO. 12 Sept., 1966 [7 Oct., 1965], No. 40662/66. Heading A5R. [Also in Division B5] A marginally reinforced surgical drape sheet comprises a sheet of thin flexible transparent plastics material having an adhesive layer on two opposite marginal edge portions and on a central portion, a reinforcing strip adhering to each adhesive marginal edge portion, and a protective backing removably adhering to, and substantially coextensive with, the central adhesive portion. As illustrated in Figures 1 and 2, plastics film or sheet 10 has applied thereto an adhesive layer 11 comprising edge portions 17, each of which is covered with a marginal reinforcing strip 13, and a central portion 18 which is covered with a protective backing 12 prior to use of the drape sheet on a patient, the opposite side edges 14 of the backing preferably being in juxtaposition with the inner edges 15 of the reinforcing strips and a small non-adhesive area 16 preferably being provided between the adhesive on each edge portion and the central portion of the plastics film. To facilitate removal, the protective backing preferably is provided with a small non-adhered lip 19 at each side edge opposite the adjacent reinforcing strip. Instead of there being a small gap between the protective backing and each reinforcing strip as illustrated, the backing may abut or slightly overlap each strip. The plastics film may be a laminate material, for example a polyethylene-paper or a vinyl-paper laminate, but preferably consists of polyvinyl chloride. The reinforcing strips and the protective backing may be made of a plastics material but preferably are of paper which may be coated, waxed or glassine paper. The protective backing must be released adhered to the plastics film; the reinforcing strips may only be temporarily adhered but preferably are permanently adhered to the film. Both the central portion and the marginal edge portions of the film preferably are coated with the same pressure sensitive adhesive. Temporary adherence of the backing may be obtained by use of a material for the backing which is releasable due to its composition or by coating either the pressure sensitive adhesive or the backing with a release agent; permanent adherence of the reinforcing strips may be obtained by the absence of such a-release agent. Alternatively, the marginal edge portions of the plastics film may be coated with a permanent adhesive. The drape sheet may be in rolled form with the reinforcing strips positioned at the inner and outer ends of the roll, the strip at the inner end of the roll preferably being rolled in a direction opposite to that of the remainder of the rolled sheet which preferably is rolled so that the protective backing is on the outside of the roll and the plastics film is on the inside of the roll. The rolled drape sheet may be provided in an individual package; the combination of rolled sheet and package may be sterilized, for example by steam. Reference has been directed by the Comptroller to Specification 1060814.
Patent GB-1477932-A (GB)
Title: Colour display device
IPC: G02F1/17
Filed: 1974-09-27
Abstract: 1477932 Controlling light MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 27 Sept 1974 [29 Sept 1973] 40916/74 Heading G2F A variable colour display device comprises a solution of coloured material between two electrodes, a dielectric layer being provided on the face of one electrode between it and the solution, whereby when a potential difference is applied between the electrodes the absorption spectrum of the coloured material is altered. One or both electrodes are transparent and the dielectric layer, which prevents electrolysis, is provided on either or both electrodes. The dielectric material is preferably ferro-electric, e.g. BaTiO 3  PbTiO 3  or CeF 3 , but may be, for Example SiO; Ta 2 O 5  ; TiO 2 ; SiN; Al 2  O 3 ; polyethylene, polypropylene or polystyrene, and is preferably 10<SP>-6</SP> to 10<SP>-2</SP> mm. thick. As particularly described, a solution of a dye of the Formula in dimethyl sulphoxide is used and changes from yellow to red as the applied voltage is increased. It is believed that the electric field affects the coloured material indirectly by altering the dipolar nature of the solvent.
Patent GB-1248043-A (GB)
Title: Hot water storage units
Inventor: FORD THOMAS
IPC: F24H1/20
Filed: 1968-08-27
Abstract: 1,248,043. Heating water. RANGE BOILERS Ltd. 8 May, 1969 [27 Aug., 1968], No. 40955/68. Heading F4A. A hot water unit, of the kind having a hot water storage vessel 3 of a secondary circuit containing " secondary" water and a heat exchanger 11 of a primary circuit containing " primary water which is heated to heat the " secondary " water, has a feed for supplying water to the heat exchanger at least part of said feed being elevated between its inlet and outlet 23, 24 to provide an air trap allowing water to flow into the exchanger to fill the primary circuit but retaining air within the trap to prevent return flow of primary water from the heat exchanger to the vessel 3 when the primary water is heated, the unit also including a water expansion chamber 20 allowing for venting of air during filling of the primary circuit and, after filling, allowing for increase in volume of the primary water during heating. A cold water feed tank 6 is secured in a recess 7 of the vessel 3 and has a ball-controlled valve to control the water supply. The walls 14, 15 of the heat exchanger 11 define an annular heat exchanger space 16 of the primary circuit closed at the bottom ends and having an extension 19 of the outer wall 15 open to atmosphere or, if preferred, closed by a loosely fitting lid. A solid portion 21 separates the primary and secondary circuits. The feed comprises tubes 24, 25, Fig. 2, aligned with a hole 27 in the extension 19, the hole being smaller than the tube passageways to baffle turbulence caused by overheating. The feed may alternatively comprise channel members (31), (32), Figs. 4, 5 (not shown), or it may comprise an inverted U-shaped pipe, Fig. 6 (not shown), the inlet end of the pipe passing through the partition 21 to communicate with the secondary water. In further modifications, the upper end of the expansion chamber is closed off by a plate and communication with the atmosphere is via a pipe leading through a side of the vessel, Fig. 7 (not shown), or passing through the plate, Fig. 8 (not shown). In yet another modification, Fig. 9, a second air trap 52 is formed by a wire plate 53 and a plate 54 and allows venting of air as the primary and secondary circuits are fed from a feed tank 41 until the secondary water level covers the hole 58 whereupon further venting is prevented. In the embodiment of Fig. 12 (not shown), the air trap is separate from the heat exchanger, the outlet of the feed being connected to the heat exchanger space by a pipe.
Patent GB-1018368-A (GB)
Title: Process for hydrofining petroleum waxes
IPC: C10G73/44
Filed: 1964-10-09
Abstract: Petroleum waxes are hydrogenatively refined in the presence of a catalyst based on a compound of molybdenum and metals of Group VIII, alone or in admixture, supported or unsupported, which catalyst has been activated by being used for the hydrodesulphurization of petroleum distillates.  Examples of catalysts are:-cobalt molybdate, molybdena/nickel oxide, cobalt oxide/ferric oxide/molybdena, all supported on alumina.  Preferred hydrodesulphurization conditions are:-250-375 DEG  C., 10-50 bars. Preferred wax refining conditions are:-200-350 DEG  C., 10-200 bars.
Patent GB-965438-A (GB)
Title: An improved method of coating a cooking vessel with a heat conductive layer
IPC: C23C6/00
Filed: 1960-12-01
Abstract: 965,438. Casting composite articles. ING. EMILIO LAGOSTINA S.p.A. Dec. 1, 1960 [Dec. 3, 1959], No. 41302/60. Heading B3F. An aluminium or aluminium alloy layer is pressure die-cast on to the bottom surface of a stainless steel cooking pot 10, which surfaces has been cleaned, roughened and provided with a thin layer 16 of aluminium or aluminium alloy. The stainless steel part may be preheated to a temperature of at least 150 C.
Patent GB-1422674-A (GB)
Title: Dispenser for rolls of flexible sheet material having means  for holding a roll in a reserve position
IPC: B65H19/10
Filed: 1973-09-03
Abstract: 1422674 Dispensing sheet material GEORGIA PACIFIC CORP 3 Sept 1973 41349/73 Heading B8M Part B A dispenser for rolls 38, 40, Fig. 3, of flexible sheet material each of which rolls has a spindle 50 extending axially beyond its ends comprises means for supporting a first roll 38 in a dispensing position in which sheet material may be withdrawn from the roll, the supporting means allowing the spindle 50 of the roll to move from a first position, shown in phantom, to a second position shown in solid lines, as the roll is consumed, and a pivotally mounted lever member 58 for holding a second roll 40 is a reserve position above the dispensing position and extending from the reserve position to the dispensing position. The member 58 is engageable with the spindle of the first roll and senses its position, and is arranged to hold the second roll in the reserve position while the first roll spindle moves from the first to the second position, and to automatically release the second roll from the reserve position when the first spindle means reaches the second position, to allow the second roll to pass along guide means to the dispensing position when the first roll is exhausted. In one embodiment, Fig. 3, the dispenser comprises a case with a pivotal cover. A guide member 52 and a pivoted lever 58 are mounted on each side wall of the case and define channels 64. The levers 58 each have a protuberance 66 and members 68, 70 limit their pivotal movement. In use a roll 38 is placed in the top of the channel 64 and the levers 58 pivot to allow the roll to drop until the material thereon engages the front wall 26 of the case. A second roll 40 placed in the channel 64 is held in the reserve position by the protuberance 66 since the presence of the spindle 50 of the roll 38 prevents the levers 58 pivoting. As the roll 38 is dispensed its spindle 50 moves down the channel 64 until when the roll is exhausted the spindle drops from the channel thus allowing the levers 58 to pivot and the roll 40 to drop to the dispensing position. In a second embodiment, Fig. 7, there is a single pivoted lever 108 mounted on pivot plates 110, and the roll 38 in the dispensing position engages a protuberance 140 on the back wall of the dispenser. When the roll is exhausted its spindle 106 drops to the position 106B.
Patent GB-1075060-A (GB)
Title: Circuit arrangement for the measurement of parameters
Inventor: BUEHN UWE
IPC: G01R27/02
Filed: 1964-10-13
Abstract: 1,075,060. Measurement of impedances and transfer functions. FUNKWERK DRESDEN VEB. Oct. 13, 1964, No.41748/64. Heading G1U. A circuit for measuring complex admittances or impedances and transfer functions has four rotatable loops 2,1, 2,2, 2,3, 2,4 fed from a generator and coupled to four coaxial lines 3,1, 3,2, 3,3, 3,4 below the loops. Three of the lines are joined at 4 and connected to a voltage indicator 6. Lines 3,1, 3,2 are connected to standard susceptance 11 and conductance 12 respectively and line 3, 3 is connected to the device 9 under test. Line 3, 4 which is short-circuited near the junction of the other three lines, is connected to the test device 9 to provide the input when measuring transfer function and to terminate the test device with a short or open circuit when measuring impedance or admittance. The length of the fourth line is a multiple of a quarter wavelength of the generator signal. Each loop may be replaced by two'loops in series.
Patent GB-949394-A (GB)
Title: Olefine polymers stabilized against oxygen and light and process for making them
IPC: C08K5/372
Filed: 1960-12-05
Abstract: Polymers of olefins (e.g. ethylene, propylene, butene, methylbutene or methylpentene) are stabilized with an ester of a tri- or tetra-sulphide dicarboxylic acid, ROOC-(CH2)n - - Sm- (CH2)n-COOR, wherein R is an alkyl, aryl, cycloalkyl or heterocyclic group, m is 3 or 4 and n is from 1 to 20. Specified stabilizers are the dioctyl-, didodecyl- and dioctadecyl esters of trisulphide- and tetrasulphide- - diacetic acids, the lauryl esters of trisulphide- and tetrasulphide-dipropionic acids and the stearyl ester of tetrasulphide-dipropionic acid. Phenolic, terpene or amine stabilizers also may be present, in particular a nonyl phenol/acetone condensation product is specified.  A solvent such as acetone may be utilized in effecting the compositions, which may subsequently be formed into shaped articles.
Patent GB-1411384-A (GB)
Title: Filter sheets for filter presses
IPC: B01D25/00
Filed: 1972-09-12
Abstract: 1411384 Filter press cloths SEITZ-FILTERWERKE THEO-GEO SEITZ 12 Sept 1972 [13 Sept 1971] 42205/72 Heading B1D Each plate 14 (or frame) of a filter press carries a double filter 'cloth' comprising two flat pieces of filter material which hang down across respective faces of the plate and which are stitched together to form a seamed spine 21 which extends along the upper edge of the plate. The seam is sewn (Fig 2, not shown) so that adjacent edges of the two pieces do not touch and only the stitches extend across the upper edges of the plates, Fig 4 (not shown). In Fig 3 (not shown) a composite filter cloth comprising several flat pieces of filter material stitched together at alternate top and bottom edges is extended in zig-zag manner over a series of press plates. The invention is applicable to presses with horizontal plates or with alternate plates and frames.
Patent GB-1442051-A (GB)
Title: Actuator caps for pressurised dispensers
IPC: B65D83/16
Filed: 1974-09-28
Abstract: 1442051 Actuator caps for pressurized dispensers AEROSOL INVENTIONS & DEVELOPMENT SA 28 Sept 1974 42243/74 Heading F1R An actuator cap has an outer cylindrical member 4 surrounding a button member 2 which is hinged to the outer member by an integral web 7 which may be above, as shown, or below a nozzle member 11 projecting from the button member through an aperture 13 in the outer member. As shown the outer member includes an inner cylindrical skirt 5 for attachment by a head 6 to the valve of a container and which also has an aperture 12 for the nozzle 11. A nozzle sleeve 14 completes the discharge passage 10.
Patent GB-1529006-A (GB)
Title: Light meter for a single lens reflex camera
IPC: G03B17/20
Filed: 1976-10-15
Abstract: 1529006 Light meters ASAHI KOGAKU KOGYO KK 15 Oct 1976 [27 Oct 1975] 42886/76 Heading G2A A light meter for an SLR camera comprises an array of LED's L1-L16, an individual one of which is energized in accordance with a sensed brightness level and predetermined parameters representing film sensitivity and exposure aperture by an analogue/digital converter 12, which converter is disabled when the mirror is raised to the exposure position, so that the LED display array is locked in its energized state. The LED's are energized by a de-coder circuit 14 in circuit with a reversible counter 13 and the analogue/digital converter 12. A light measuring and computing circuit includes a photodiode 2, a transistor 5, and a variable photoresistor 6 which can be adjusted so as to take into account the film sensitivity and the aperture. A signal proportional to these parameters and the measured brightness is fed to a comparator circuit 8 which compares it with an output voltage of converter 12. When a balance is obtained, de-coder 14 energizes the appropriate LED. During this time, the mirror 23 is down (i.e. viewing position) and a switch 17 is open. When the mirror is swung upwards to the exposure position, switch 17 is closed, and a logic circuit 10, 11 disables further operation of converter 12, and the value stored in counter 13 is locked, so that the indication given by the LED is maintained without fluctuation.
Patent GB-1481875-A (GB)
Title: Pitting resisting alloy steels
IPC: C22C37/06
Filed: 1974-10-03
Abstract: 1481875 High chromium pitting resistant alloy steel HITACHI METALS Ltd 3 Oct 1974 [3 Oct 1973] 42960/74 Heading C7A An alloy steel of composition: Fe and impurities including rare earths, magnesium, calcium, aluminium, phosphorus and sulphur balance. The alloy displays resistance to pitting corrosion attack may be heat-treated by holding for 3 minutes at 1050, 1075 or 1100C, oil quenching, treating at -78C for 10 minutes and tempering for one hour at 200, 300 or 550C and may be used in the manufacture of edged tools.
Patent GB-1153453-A (GB)
Title: Production of Magnetic Recording Media.
Inventor: SCHNELL GEORGE
IPC: G11B5/702
Filed: 1966-09-28
Abstract: 1,153,453. Magnetic compositions. BADISCHE ANILIN- & SODA FABRIK A.G. 28 Sept., 1966 [29 Sept., 1965], No. 43247/66. Heading H1H. In the production of magnetic recording media by applying a suspension of ferromagnetic powder in a solution of a linear polyamide on to a backing, the applied layer contains 10-150% by weight (referred to the polyamide) of a soluble condensation product of an aliphatic monocarboxylic acid having 4-22 carbon atoms, and an aliphatic hydroxyamine having at least one primary or secondary amino group, a molecular wt. of below 500, and, e.g., 2-18 carbon atoms. The layer is then dried and heated above the softening point of the polyamide, e.g. at 50-110‹ C. Suitable acids are butyric, caproic, caprylic, capric, lauric, tridecanoic, palmitic, stearic, nonadecylic, sorbic, linoleic, oleic, and sperm or linseed oil fatty acid. Suitable hydroxyamines are 3-hydroxypropylamine, 2-aminoethanol, N - methyl - 2 - aminoethanol, N - hydroxyethyl - 2 - aminoethanol, 2 - aminobutanol, 2- amino - 2 - methyl - propanol, 3 - amino - 2 - hydroxy - propanol, diethanolamine monomethylether, N,N<SP>1</SP> - di - 2 - hydroxyethylethylenediamine, N,N<SP>1</SP> - di - 2 - hydroxyethylpropylenediamine. Equimolar amounts may be used. Suitable polyamide-forming materials, solvents, plasticizers, dispersing agents, and backings are listed. 400-650 pts. by wt. of powder, e.g. acicular γ-Fe 2 O 3 , Fe 3 O 4 , or Fe, may be used per 100 pts. polyamide.
Patent GB-969562-A (GB)
Title: Improvements in or relating to oscillatory vane members and sealing means therefor
Inventor: MATT RICHARD JOHN
IPC: F15B15/12
Filed: 1962-11-15
Abstract: 969,562. Oscillatory vane actuators. THOMPSON RAMO WOOLDRIDGE Inc. Nov. 15, 1962, No. 43293/62. Heading F1F. An oscillatory vane actuator comprises a rotor 8, Fig. 2, having diametral vanes 9, 10 oscillatable in a housing chamber 15 sandwiched between end plates 16, 17, Fig. 1, bearingly supporting rotor extensions 8a. Transverse rotor passages 30 . . . 33 and axial rotor passages 28, 29 are supplied with actuating fluid through a pipe 36. The actuator is controlled by bleeding off actuating fluid through one or other of ducts 41 extending from the passages 28, 29. To seal the operating chambers against leakage, as shown in Figs. 1 and 2, the vane and rotor are completely encased in a coating 47 of elastomeric material such as natural or synthetic rubber. The coating 47 may be moulded to the vanes to provide a wiper section 48 with tapered sides 44, 46 extending along the axial and radial edge portions of the vanes which merge into end face seals 54, 55 concentric with the rotor. In a modification, the wiper section may be keyed in a dovetail groove formed in the axial and radial edge portions of the vane and may or may not be encased in a coating of elastomer material.
Patent GB-1241072-A (GB)
Title: Meshless cathode ray storage tube
Inventor: MOORE THOMAS HENKEL
IPC: H01J31/58
Filed: 1969-09-02
Abstract: 1,241,072. Cathode - ray storage tubes. NORTH AMERICAN ROCKWELL CROP. 2 Sept., 1969 [29 Nov., 1968], No. 43467/69. Heading H1D. In a single gun cathode-ray storage tube the use of a field mesh adjacent the target is avoided by using a high-velocity beam to scan a continuous secondary-emissive dielectric storage layer and providing a magnetic focusing field extending from the cathode to the target. The target should have a bulk resistivity of at least 10<SP>13</SP> ohm-cm. and a secondary emissive ratio of at least 3; it may be of CaF 2 , MgO 2 , MgF 2 , BeO or SiO-SiO 2  having a thickness of 0À05 to 2 microns, a preferred construction being BeO of 0À75 microns thickness. The dielectric layer 11a may be deposited on a metal layer 11b 500-1000  thick on a glass substrate 11c having the same thermal expansion coefficient as the dielectric, and the target may be mounted in a stainless steel clamp (18, Fig. 3, not shown) which contacts the exposed edges of the metal layer and which has a stem extending through the tip of the envelope to provide a lead-in connection. The focusing magnetic field may be produced by a coil 15 divided into four sections, the current flow through each section being individually adjustable to produce a field which tapers in both directions from a maximum value to a slightly lower value at the target and to a much lower value at the electron gun (Fig. 2, not shown). The deflection yoke 13 preferably uses a coil with windings tapered so that the ratio of deflecting field to focusing field remains constant along the axis. The tube shown includes an electrostatic shield 16 of low conductivity nickel-chromium alloy which may be a wall coating 100  thick or an electrode 75 microns thick, and when the output is taken from the target backing plate the shield may extend to within 0À5 mm. of the target. When the output is taken from a return beam through an electron multiplier an electrostatic field transition means may be provided between the shield 16 and the target. This may comprise a helical resistive structure or, as shown, an assembly of at least four conductive rings having a total axial length equal to the diameter of the shield 16. In the arrangement shown there are two sets of three rings each, one set connected to the shield 16 and the other set to an output terminal maintained at target potential. The peripheral areas of each set preferably form an arithmetic progression such as 1 : 2 : 3. In operation the shield 16 is set equal to the target backplate voltage (435 volts) for the erase mode wherein the target is scanned by a de-focused high-current beam. In the write mode the voltage of shield 16 is raised (to 500 volts) so that a positive charge pattern is developed on the target, and in the read mode the voltages are the same and the reading beam charges the previously uncharged areas.
Patent GB-1048590-A (GB)
Title: Improvements in or relating to nuclear reactor fuel elements
Inventor: SHAW RICHARD ARTHUR
IPC: G21C3/20
Filed: 1962-11-19
Abstract: 1,048,590. Fuel elements. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. Oct. 24, 1963 [Nov. 19, 1962], No. 43627/62. Heading G6C. A nuclear reactor fuel element comprising a member of nuclear fuel material enclosed in a sheath of magnesium base alloy which is susceptible to the diffusion therethrough of plutonium resulting from the irradiation of the fuel element in a nuclear reactor has an interlayer disposed between the fuel and the sheath to act as a barrier against diffusion into and through the sheath of plutonium. The interlayer may be a graphite coating on the fuel, or on the inner surface of the sheath and end caps, or both. Where the fuel is a uranium rod, this is cleaned and degreased and then heated in air at 150‹ C. to provide an oxide coating on to which, after cooling, a suspension of graphite in alcohol is applied by spraying, painting or dipping. For coating the sheath and end caps these are cleaned and degreased, dried by heating to 100‹ to 150‹ C., and then have their inner surfaces coated with a suspension of graphite in alcohol by filling and draining (in the case of the sheath) or by spraying, painting or dipping (in the case of the end caps). In an alternative graphiting process for uranium rods, these are grit blasted after which powdered flake graphite is rubbed on to their surfaces. An alternative interlayer material to graphite is magnesium chromate.