baber/WOPTO huggingface dataset:
Patent GB-945508-A (GB)
Title: Improvements in or relating to fluid flow control valves
IPC: F16K5/20
Filed: 1960-12-09
Abstract: 945,508. Valves. O. MEYER, and E. SCHUNCK. Dec. 9, 1960 [Jan. 26, 1960; June 21, 1960], No. 42547/60. Heading F2V. A sliding valve closure member, Fig. 2, has a recess receiving a sealing ring which is axially slidable in the recess. The ring comprises a rigid outer ring 8 and a resilient inner ring 9 to co-operate with the valve seat 7. The ring 9 is of the same outer diameter as the recess at the end remote from the seat and is provided with a lip 11, while the outer diameter at the end nearer the seat is equal to the inner diameter of ring 8. A further inner supporting ring 10 may be provided and a spring-loaded plate 16<SP>1</SP> or 16<SP>2</SP> bears on the end of the resilient ring. This plate may be provided with bores 17<SP>1</SP> or 17<SP>2</SP> and/or a plurality of incisions 24. With the valve in the closed position as shown, the spring-loaded plates act to form a seal and this loading is supplemented by fluid passing through the bores or, if the bores are not provided, by pressure momentarily lifting the plate and passing through the incisions 24 to act on the inner end of the rings when the passage 2 contains fluid under pressure. This fluid pressure also acts on the lip 11 to provide a sealing action. Fig. 1 shows the invention applied to a rotary plug cock. In this case the resilient ring 9 is preferably provided with a chamfer 20 against which the fluid pressure acts when the valve is closed. The ring 9 is preferably made of a comparatively soft material of Shore hardness 45-50. In a further modification the sealing-ring is a single resilient member which may be loaded by a bow spring or a plate loaded by a resilient tube.
Patent GB-890861-A (GB)
Title: Coloured photographic image protection and product therefor
IPC: F16H61/02
Filed: 1959-12-15
Abstract: 890,861. Coloured photographic image protection and products therefor. INTERNATIONAL POLAROID CORPORATION. Dec. 15, 1959 [Jan. 14, 1959], No. 42635/59. Drawings to Specification. Class 98(2). A coloured image made in an image receiving element by diffusion-transfer from an imagewise distribution of colour-providing substances formed in an exposed photosensitive element is protected from the adverse effects of ultraviolet light by incorporation of at least one ultraviolet absorbent compound in the receiving element before or during formation of such image. Preferably the transfer is effected through a layer of an alkali permeable polymer containing the ultraviolet absorbent compound to a dyeable image receiving layer, and in a product for use in -this method the latter layer, on a support, is covered by the polymer layer which however, has a lower affinity for the colour providing substances than the imagereceiving layer. In an example this polymer layer comprises cellulose acetate hydrogen phthalate with cellulose acetate itself and 5- benzilidene - 3 - hexadecyl - 2 - phenylimino-4- thiazolidone as of Specification 748,190 as ultraviolet absorber, and a magenta image is produced in the underlying receiving layer by dye-developer technique. Other ultraviolet absorbers are indicated by a structural formula. Numerous alternative manners of procedure are described, and other products include such having a transparent image receiving layer and a transparent film support with the ultraviolet absorbing substance distributed therein; and having a silver halide emulsion containing colour-providing substances, and a rupturable container of processing solution as well as the image-receiving element. A product comprising a silver halide emulsion containing colour-providing substances and a separate alkali-permeable layer containing an ultraviolet absorbing substance soluble in aqueous alkaline processing solution may be used in the method. Multicolour operations are referred to briefly. Specifications 684,591, 684,592, 684,599, 804,971, 804,972, 835,433, 853,478 and 853,479 also are referred to.
Patent GB-1408113-A (GB)
Title: Manufacture of polyurethane coated fabrics
IPC: D06N3/14
Filed: 1973-09-11
Abstract: 1408113 Polyurethane-coated fabric ATLANTIC RICHFIELD CO 11 Sept 1973 [20 Oct 1972] 42692/73 Heading B2E A polyurethane coated fabric is produced by coating a one-package cyclic nitrile carbonate/polyol system to a release surface, heating the coated release surface at a temperature sufficient to cause foaming and partial curing of the coating, placing a substrate fabric over the foamed and partially cured coating, applying pressure to the fabric-covered coating sufficient to crush the foam and fuse the same into a continuous film, heating the resulting compressed laminate to a temperature sufficient to complete curing of the coating and stripping the coated fabric from the release surface. The cyclic nitrile carbonate may be adiponitrile carbonate. The polyol may be a polyester, a polyether, a mixed polyesterpolyether or a mixture thereof. The release surface may be polytetrachloroethylene. The coating composition may also include inorganic fillers such as clay, talc, silica, carbon black, asbestos, glass, mica, calcium carbonate, antimony oxide and organic fillers, e.g. polymers, copolymers and terpolymers of vinyl chloride, vinyl acetate, acrylonitrile, acrylamide, styrene, ethylene, propylene, butadiene, and divinyl benzenes. The resulting coating is said to be microporous. In a typical example a blend of adipodinitrile carbonate, polyester having 3 active OH groups, polyester having 2.4 active OH groups, dihydroxy ethyl aniline, condensation product of epichlorohydrin and bisphenol-A is compounded with thiotrope, barytes and titanium dioxide pigment and doctor bladed on to a polytetrafluorethylene coated sheet. The sheet was heated to foam the coating and a piece of sheered, napped flannel was placed over the foamed coating and the composite heated and pressed and finally heated to complete the curing before cooling and stripping from the release surface.
Patent GB-1268599-A (GB)
Title: Method of preventing explosions when fermenting with nutrient media comprising a combustible component
Inventor: MUELLER HANS
IPC: C12N1/30
Filed: 1970-09-07
Abstract: 1,268,599. Aerating liquids. H. MULLER. 7 Sept., 1970 [5 Sept., 1969], No. 42798/70. Heading B1C. [Also in Division C6] A method of preventing an explosion when performing an aerobic fermentation in the presence of a volatile combustible material e.g. petroleum fraction or methane, involves finely dispersing the volatile combustible material -and the oxygen-containing gas throughout the mass of aqueous nutrient medium in which aerobic fermentation is taking place. The froth of mixed volatile materials produced may be separated into liquid and gaseous components, mechanically or by use of an antifoaming agent, and the gaseous components mixed with an inert gas or vapour such as nitrogen, carbon dioxide or water vapour. The aqueous nutrient medium may include an emulsifying agent or solubilising agent.
Patent GB-1203274-A (GB)
Title: Container having a base portion and a cover
IPC: A61F17/00
Filed: 1967-09-21
Abstract: 1,203,274. Containers. ROMMLER G.m.b.H. H. 21 Sept., 1967 [21 Oct., 1966; 14 March, 1967], No. 42994/67. Heading B8P. [Also in Division E2] A container comprises a base portion 1 and a lid 2 of a synthetic resin material, the lid being connected to the base portion by integral synthetic resin straps 3. Each strap has two projections (4) (Fig. 3, not shown) which are engageable in holes in the base portion, and when in position the projections are enlarged by thermal treatment to form rivet heads. The lid includes flanges 10, 11 between which a packing ring 17 is positioned. Guide cams 12 assist in locating the lid on the base portion and the upper edge of the base portion is received between the flanges. Press stud fasteners are provided or closure straps 5, which include holes through which pins 14 with transverse bores extend. The base portion 1 is preferably made of a synthetic resin material.
Patent GB-1518527-A (GB)
Title: Incinerators
IPC: F23G5/16
Filed: 1975-10-21
Abstract: 1518527 Incinerators GOODRID INCINERATOR CO PTY Ltd 21 Oct 1975 43185/75 Heading F4B In an industrial town waste incinerator of the kind comprising a main combustion chamber 4 leading via a passageway 5 into a series of secondary combustion chambers 6, 7, 8 and 9 and interconnecting passageways arranged to define a tortuous or labyrinthine path for the hot combustion gases ladened with unburned carbon particles leaving the main chamber 4, the passageway 5 is provided with a plurality of fixed heat radiating plates or fins 12 and the or each subsequent passageway is/are provided with manually and/or mechanically adjustable fins 14 composed of a high heat radiating material. As shown the position of the fins 14 can be adjusted by means of handles 15 to control, e.g. speed up, the rate of gas flow through the incinerator. The secondary combustion chamber 6 is provided with one or more afterburners 7A. Air is fed into the main combustion chamber 4 through frustoconical inlets 13. A water trough 11 is provided adjacent one of the final passageways to collect any remaining unburned carbon particles prior to said gases leaving the incinerator via a stack 10.
Patent GB-950318-A (GB)
Title: Improvements in or relating to dry shaving apparatus
IPC: C07D213/76
Filed: 1960-05-16
Abstract: 950,318. Dry shavers. PHILIPS ELECTRICAL INDUSTRIES Ltd. May 16, 1960 [May 19, 1959], No. 43237/63. Divided out of 950,317. Heading B4B. In a dry shaver head having a toothed cutting member 3 rotated in contact with the undersurface 10 of a shear plate 1 having radial apertures 2 so that the cutting edges of the teeth co-operate with the edges 7 of the apertures to cut hair, the plate-contacting surface of the tooth 5 has an aperture 11 in which oil from the skin collects for distribution over the undersurface 10 for lubrication between the undersurface 10 and the cutting edges of the teeth. Alternatively, the surface of the tooth 6 has an open-ended slot 9 so that the cylindrical centring walls of the shear plate are lubricated.
Patent GB-1487759-A (GB)
Title: Pin-and-socket joints
IPC: F16J15/52
Filed: 1974-12-17
Abstract: 1487759 Ball and socket joints; clips AUTOMOTIVE PRODUCTS Ltd 17 Dec 1974 [24 Jan 1974] 43310/74 Divided out of 1447412 Headings E2B and E2F Also in Division F2] In a clamping band of the split resilient ring type for holding a protective boot 14 of a ball and socket joint firmly in place, the clamping band comprises a split ring of flat spring wire 18 housed in a circumferential groove 17 of the boot such that the ring extends more than twice around the circumference of the boot and the ring is deformed or recessed at suitably spaced points in its length to enable the turns of the ring to lie side-by-side and having at no point in its circumference an axial thickness of more than three turns.
Patent GB-1205565-A (GB)
Title: Improvements in or relating to electron guns
Inventor: HILLS DOUGLAS SHEPHERD
IPC: H01J29/52
Filed: 1966-09-28
Abstract: 1,205,565. Electron guns. THE RANK ORGANISATION Ltd. 22 Sept., 1967 [28 Sept., 1966], No. 43364/66. Heading H1D. An electron gun comprises, adjacent the planar cathode 9, an accelerating electrode 14 having a penetration factor of less than 0À7 and adapted to provide unipotential surfaces parallel to the cathode surface, a shielding electrode 18 being disposed in front of the electrode 14 to prevent other electrodes from altering the unipotential surfaces; an electron beam uniform over its cross-section and devoid of any crossover, is produced. In one example the electrode 14 is a solid metal plate 0À005 inch thick with a central aperture of 0À020 inch diameter disposed 0À004 inch from the cathode and biased 5 volt positive to the cathode. Electrode 18 is disposed 0À005 inch from electrode 14 and may be sufficiently thick in relation to the diameter of its central aperture to screen the space adjacent to the cathode; otherwise the aperture may be covered with a mesh. Further electrodes 20, 22 and 29-36 may be provided, of which electrodes 32, 34, 35 and 36 are at 320 volts arid the others at 1030 volts. Electrode 36 is connected to a graphite coating 38 the other end of which is connected to a high resistance helix 42. In operation modulating potentials may be applied to either of the electrodes 14 and 18. The tube shown has a fluorescent screen 6, but the gun may be used in a vidicon, an orthicon, a travelling wave tube, a storage tube or a plural-beam tube . Reference has been directed by the Comptroller to Specification 1,119,931.
Patent GB-1525558-A (GB)
Title: Cylinders and rollers for printing machines
IPC: B41F7/26
Filed: 1976-01-26
Abstract: 1525558 Impression cylinder surfaces ADAMOVSKE STROJIRNY NARODNI PODNIK 26 Jan 1976 [27 Jan 1975] 43510/77 Divided out of 1524323 Heading B6C [Also in Division F2]  A roller or cylinder for a printing machine especially the impression cylinder of a perfecting press has a metal core coated to a thickness of 0-2 to 0À6 mm. with stainless steel, 80/20 nickelchromium alloy, or a nickel-base alloy containing 4 to 20% chromium, 1 to 6% boron and 1 to 6% silicon, the surface having a roughness of 7 to 25 microns. An intermediate layer of 80/20 nickel-chromium alloy may also be provided.
Patent GB-976854-A (GB)
Title: Aircraft propulsion apparatus
Inventor: SNELL LEONARD STANLEY
IPC: F02K3/02
Filed: 1961-12-07
Abstract: 976,854. Jet propelled aircraft. DE HAVILLAND ENGINE CO. Ltd. Dec. 7, 1962 [Dec. 7, 1961], No. 43888/61. Heading B7G. [Also in Division F1] An aircraft jet propulsion and lift engine comprises a forward facing inlet 6 (Fig. 1), annular air ducting 7 leading to the intake 5 of a compressor 3, an annular combustion chamber 10, a first turbine 11 driving the compressor and a second turbine 13 driving a fan 15 in the air ducting 7. Thrust is provided by air from the ducting 7 issuing from nozzles 9 and by exhaust gases issuing from nozzles 18. The nozzles are rotatable in unison through a chain and sprocket drive 35 (Fig. 3) by an air motor 24 having a follow-up device 26 and powered by air bled from the compressor. The two gas ducts 17 leading to the nozzles 18 are streamlined where they pass through the ducting 7. In another embodiment (Fig. 5, not shown) the fan in the ducting 7 is mounted in front of the gas ducts 17 and is connected to the turbine 13 by a shaft. In this embodiment the exhaust gases may flow to the nozzles 18 (67 in Fig. 8) through radial ducts 59 and an annular manifold 65. The engine is mounted in an aircraft (Fig. 9, not shown) with the gas nozzles 18 ahead of and the air nozzles 9 aft of the centre of gravity. Specifications 881,663 and 915,400 are referred to.
Patent GB-1168397-A (GB)
Title: Polymerization of Isoprene
Inventor: BONFARDECI AUGUSTO
IPC: C08F136/08
Filed: 1968-09-16
Abstract: 1,168,397. Polymerizing isoprene using a ternary catalyst system. MONTECATINI EDISON S.p.A. 16 Sept., 1968 [19 Sept., 1967], No. 43905/68. Heading C3P. Isoprene is homopolymerized to high cis- 1,4-structure using a catalytic system comprising (a) Ti(OR) 4 , (b) Al 2 R 3 Cl 3 , and (c) SiHaR 6 (OR<SP>1</SP>) c : where the Rs and R<SP>1</SP> are alkyl groups, a and b are 0, 1, 2, or 3, c is 0, 1, 2, 3 or 4, and a + b + c = 4. The catalyst may be prepared in a diluent subsequently employed for polymerization, and aged prior to polymerization. The polymer may be vulcanized or formed into an aqueous dispersion or latex. In the examples the catalysts comprise:- Ti(O-n-C 4 H 9 ) 4  or Ti(O-i-C 4 H 9 ) 4 / - Al 2  (C 2 H 5 ) 2 Cl 3 /(CH 3 ) 3 Si(OC 2 H 5 ) or (C 2 H 5 ) 3 SiH or Si(OC 2 H 5 ) 4 .
Patent GB-1089329-A (GB)
Title: An angle-calculating device
IPC: G06G1/00
Filed: 1965-10-18
Abstract: 1,089,329. Angle calculators. A. R. MYERS. Oct. 18, 1965, No. 43962/65. Heading G4B. An angle-calculating device comprises three elongated members 11, 18, 48, Fig. 1, each having a scale thereon, two of the members 11, 18 being pivoted together at a fixed point 16, a slider 43, 27, 56 movable on each member, each slider having a mark which registers with the scale on its associated member, one of the sliders 43 having means for the pivotal connection of two of the adjacent members 11, 48, releasable means for pivotally connecting the other two sliders 27, 56 after they have been adjusted on their respective members, and means 14, 51 for measuring two of the angles of the triangle formed by the members. As illustrated, slider 27 has an aperture 33 which receives selector pin having a groove. Slider (56) also has an aperture which can receive the selector pin.
Patent GB-1127108-A (GB)
Title: Production of isoprene
IPC: C07C5/25
Filed: 1966-10-03
Abstract: 1,127,108. Isoprene. GOODYEAR TIRE & RUBBER CO. 3 Oct., 1966 [20 Oct., 1965], No. 43982/66. Heading C5E. Isoprene is produced by a three-step process comprising (1) co-dimerizing ethylene with butane-1 or butene-2 to form 3-methyl-1-pentene in the presence of a supported alkali metal catalyst, (2) isomerizing the 3-methyl-1- pentene to 3-methyl-2-pentene, and (3) demethanating 3-methyl-2-pentene to form isoprene. The preferred step (1) catalyst is potassium, suitable supports being alumina, magnesia and magnesium silicate. These supports may be powdered or pelleted, and may contain additives, e.g. K 2 CO 3 , KI, KC1, KBr or potassium silicate. Suitable catalysts for step (2) are alumina, tungsten oxide on alumina, AlF 3  on alumina, silica/alumina acidified alumina, acidified clay, molecular sieves, HF/Al 2 O 3 , HClO 4 , H 3 PO 4 , H 2 SO 4  and alkyl or aryl sulphonic acids. Step (3) is a pyrolysis step, e.g. at 500-1000‹ C., optionally in the presence of a diluent, e.g. steam or N 2 , and a cracking promoter, e.g. HBr, CH 3 SH, H 2 S, CH 2 Cl 2 , isopropylmercaptan, Br 2 , NH 4 HS, (NH 4 ) 2 S and mixtures thereof.
Patent GB-1339295-A (GB)
Title: Process for producing piezoelectric films of polyvinylidene fluoride
IPC: H01L41/45
Filed: 1971-09-24
Abstract: 1339295 Calibrating Piezo-electric films KUREHA KAGAKU KOGYO K K 24 Sept 1971 [26 Sept 1970] 44744/71 Heading G1N [Also in Divisions B5 and H1] The Piezo-electric constant d 31  of a prepared polyvinylidene fluoride film (see Division H1) is measured using the apparatus of Fig.2. The film 2, provided with electrodes 4, is stretched by a vibrator 1 operating at 15 c/s, and the stress measured by gauge 3. The generated A.C. voltage is transmitted through amplifiers 5, 6 and active filter 7 to an A.C. voltmeter 8.
Patent GB-997177-A (GB)
Title: Improvements relating to ªÏ-hydroximinoalkanoic acids
Filed: 1963-11-13
Abstract: The invention comprises 8-hydroxyimino caprylic acid and a process for omega hydroxyimino alkanoic acids of the general formula HON = CH-R-CH2CO2H where R is a polymethylene chain of at least C2, and preferably C2 to C8, optionally substituted by one or more C1 to C5 alkyl groups, which are made by nitrosating a ketone <FORM:0997177/C2/1> in the presence of a molar amount of concentrated sulphuric acid at least equal to that of the nitrosating agent and at a temperature and for a time insufficient to allow the formation of a substantial amount of the corresponding amido acid, and hydrolysing the resulting product with water at 0 DEG  C.  The preferred nitrosating agent is nitrosyl sulphuric acid, others suitable include nitrosyl halides, alkali metal nitrites, or nitrous oxide, e.g. obtained by the oxidation of ammonia in air or by sulphuric acid and alkali metal nitrite. The hydroxyimino alkanoic acid may be catalytically hydrogenated to the omega amino alkanoic acid, e.g. with Raney nickel.  In the examples, using nitrosyl sulphuric acid, cyclopentanone is converted first to omega hydroxyimino valeric acid which is then hydrogenated, in the presence of aqueous ammonia, to 5-amino valeric acid, cyclopentanone is converted to omega hydroxy iminocaproic acid and then to 6-amino caproic acid, cyclooctanone yields omega hydroxy-iminocaprylic and then 8-aminocaprylic acid and cyclododecanone yields 10-hydroxyimino dodecanoic acid.
Patent GB-951582-A (GB)
Title: Improvements in or relating to cleaning pads or like articles
Inventor: MICHEL HELMUT
IPC: A47L13/17
Filed: 1962-11-28
Abstract: 951,582. Cleaning pads. CARESSA Ltd. Nov. 28, 1962, No. 45057/62. Drawings to Specification. Heading A4F. A cleaning pad has an outer covering at least partially of woven or knitted liquid repellent fabric of twisted propylene or other synthetic filaments, having an outer terry surface, and an inner filling of absorbent material, e.g. synthetic plastics sponge.
Patent GB-1299116-A (GB)
Title: Shrink pack construction and method
Inventor: GANZ ROBERT HENRY
IPC: B65D71/08
Filed: 1970-09-22
Abstract: 1299116 Packaging containers R H GANZ 22 Sept 1970 [22 Sept 1969 16 April 1970] 45135/70 Heading B8C Bottles or cans are packaged by wrapping a sheet 24 of shrinkable and bondable plastics material around the containers with the ends of the sheet overlapping at one end of the containers, and heating the wrapped containers in an oven to bond the ends of the sheet at spaced locations and to shrink the sheet. The container may be passed through a hot air oven on a conveyer having elements 31-33 to shield the ends from being bonded in the regions of the containers. A card 19 may extend over the whole or part of the length of the package at the other end and have holes 25, 26, or finger notches, aligned with holes in the sheet formed by slitting the sheet before shrinking. The card may have side flanges 20 and, optionally, an aperture between each flange and the top of the card. The sheet is of blown extrusion polyethylene film having a greater shrinkage around the cluster of containers than along the length of the cluster.
Patent GB-1039820-A (GB)
Title: Stentering machine for textile dryers
IPC: D06C3/02
Filed: 1963-11-18
Abstract: 1,039,820. Stenter devices. C. A. MEIERWINDHORST. Nov. 18, 1963 [Dec. 22, 1962], No. 45514/63. Heading D1S. In a textile stentering device wherein the needles or clips assume a different setting in the region of the dryer from that at the needle or clip engaging and disengaging locations to prevent the web being blown off the needles, the change in the setting of the needles is obtained by rotating the chain tracks about an axis lying along their length. At the left hand side of the Fig. the chain track 11 is positioned so that the pins on the needle bars 13 are almost vertical and thus easily engage or disengage the fabric. At the right hand side of the figure the track 11 which has been gradually twisted from its orientation at the fabric engaging location is shown in the position it maintains while passing through the dryer, the needles being inclined away from the fabric 14 at an angle of more than 10 degrees (preferably 15 degrees) greater than that at the needle engaging or disengaging locations.
Patent GB-939633-A (GB)
Title: Measuring apparatus
IPC: G01N25/56
Filed: 1961-12-21
Abstract: 939,633. Meterological apparatus. BRISTOL CO. Dec. 21, 1961 [May 1, 1961], No. 45770/61. Class 97 (3). Apparatus for measuring a quantity representative of a plurality of characteristics of a surrounding atmosphere comprises two helical elements each responsive to one of the characteristics and connected additively to produce the combined indication. As shown applied to measuring the temperature-humidity index the member 25, Fig. 3, has a bimetallic spiral 40 fixed at one end 34 and connected by a clamp 42 at its other end to the lower end of a hygroscopic laminated member 41, formed of a wood or other fibrous organic layer 47, a spring 50, and a plastic or other moisture impervious backing layer 48, the upper end of member 41 being connected to a rotatable hub 30. The movements of member 25 are transmitted from hub 30 by a link 53, Fig. 1, and lever transmission 55 to a pen 70 traversing a chart 17 which is rotated by a clock motor 12. Fan 73 draws air through openings 78, over the member 25 and out through openings 77. In a modification, Fig. 4, not shown, the temperature responsive and hygroscopic elements are mounted on parallel axes connected by suitable additive linkage. The temperature responsive element may be a bourdon tube.