baber/WOPTO huggingface dataset:
Patent GB-1458370-A (GB)
Title: Photographic materials
IPC: G03C7/30
Filed: 1973-08-23
Abstract: 1458370 Photographic multi-layer colour materials KODAK Ltd 25 Nov 1974 [23 Aug 1973] 40052/73 Heading G2C Photographic multi-layer colour material comprises a support bearing two or more silver halide emulsion layers sensitive to different regions of the spectrum, e.g. to blue and red or to blue, green and red, and in addition a panchromatically-sensitized silver halide emulsion layer so located as to be the first sensitive layer struck by the light to which the material is exposed, e.g. it is the sensitive layer furthest from the support or, in the case of exposure through the support, that nearest the support. Each emulsion layer may contain a colour coupler which forms a dye image absorbing in not more than one of three or more spectral regions e.g. which forms a magenta, cyan or yellow dye image, or the exposed material may be developed by developers containing couplers. Thus the material may contain the following layers (starting furthest from the support):- (a) a panchromatic emulsion layer containing a magenta-forming coupler, (b) a blue-sensitive layer containing a yellow-forming coupler, (c) a yellow filter layer and (d) a red-sensitive layer containing a cyanforming coupler. A green-sensitive layer (e) containing a magenta-forming coupler may be located between layers (c) and (d) in which case the absorptions of the magenta images formed from the couplers in layers (a) and (e) differ. The dye-image colours formed in each layer may or may not correspond to the sensitivities of the emulsion layers to give "true" sensitization as above, e.g. layer (a) could give a yellow image and layer (b) a magenta image. The colour images obtained on exposure and colour processing are read by scanning for television use and for making colour prints.
Patent GB-1584628-A (GB)
Title: Sliding gate valve
IPC: B22D41/24
Filed: 1977-09-27
Abstract: For the adjustable throttling of the casting stream in the case of a casting vessel (1) with exchangeable or displaceable sliding plates (13), a slide valve is provided for carrying out the method. By means of a second moving device (17), which operates independently of a first moving device which brings about the exchange or displacement movement of the sliding plates (13), the axial alignment of the pouring opening of the sliding plate (13) relative to the pouring opening of the casting vessel (1) can be varied in such a way that finely adjusted throttling is achieved. Depending on the properties of the molten material to be cast, it is thus possible to set the pouring cross-section which has been recognised as the optimum and for it to be varied in the course of the casting process. To improve the throttling effect, the pouring opening formed in the sliding plate (13) can have an elongated cross-section. The second moving device comprises a hydraulic throttling cylinder (17), which engages on a holding frame (6) for the sliding plate (13). <IMAGE>
Patent GB-1105094-A (GB)
Title: Building material compositions and process for the manufacture thereof
IPC: C08L95/00
Filed: 1965-09-22
Abstract: A composition suitable for building blocks is made by first compacting a finely-divided aggregate (soil, sand, limestone and shale) under high pressure to improve its particle size distribution by crushing mixing the crushed aggregate with a bituminous or petroleum base binder, shaping the mixture by pressing and curing the product in an oxygen-containing atmosphere at 300-500 DEG  F. for 4 to 32 hours. Suitable crushing pressures are 2500 to 19,500 p.s.i., suitable moulding pressures 1000-8500 p.s.i.  The crushed aggregate, which may be 20-40 mesh builder's sand, is preferably mixed hot with the binder which may be an asphalt with a penetration of 89 DEG  to 77 DEG  F.
Patent GB-1013061-A (GB)
Title: Compressive crimping of textile strands
Inventor: STANLEY ROBERT KENNETH
IPC: D02G1/12
Filed: 1963-10-15
Abstract: 1,013,061. Crimping yarns. TECHNISERVICE CORPORATION. Oct. 15, 1963, No. 40655/63. Heading D1F. [Also in Division H5] In a process for crimping yarn having a thermoplastic component, the yarn is heated to soften this component and the hot yarn is compressively crimped and then cooled as soon as it assumes crimped configuration. If heating and cooling zones are contiguous, crimping occurs at the junction thereof. As shown in Fig. 2, yarn 10 is withdrawn from package 11 and through a guide 13 by forwarding rolls 14, 14<SP>1</SP>, which may be heated, passes over a heating block 5 to stuffer rolls 16, 16<SP>1</SP>, one or both of which is heated, and is forced thereby into a stuffing chamber 17 which is surrounded by a cooling jacket 19 extending into the bight of rolls 16, 16<SP>1</SP>. Crimped yarn 10<SP>1</SP> emerging from the chamber passes over idler roll 20 and is teken-up on a bobbin 12 by a winding drum 22. In the stuffer-box crimper shown in Fig. 3, the yarn is presented through the bore of a guide 23 to beltdriven, gear-connected rolls 16, 16<SP>1</SP> which force, and therefore crimp, the yarn against an adjustably spring-loaded, back-pressure gear 45 extending into the bight of the rolls from the rear. One (or both) roll(s) 16, 16<SP>1</SP>, has an internal, electric heater automatically regulated to maintain a predetermined temperature of the roll(s), Figs. 5-8 (not shown). The crimped yarn, under compulsion of incoming yarn, rotates and slips past the gear 45 into and through the cooled bore 25 of chamber 17 wherein a leaf 55, deflected in dependence on the quantity of crimped yarn in the chamber, may actuate pneumatic control (not shown) of the yarn wind-up to maintain such quantity constant or within acceptable limits of fluctuation. The jacket 19 compreses deflecting and helical circulating fins 51 and 52, the cooling fluid e.g. water, being circulated via inlet and outlet tubes 57 and 58.
Patent GB-1325596-A (GB)
Title: Tool holding assembly for machine tools
IPC: B23B29/10
Filed: 1970-08-26
Abstract: 1325596 Tool holding assemblies CHARLES WILLEN & CIE 26 Aug 1970 [29 Aug 1969] 41161/70 Heading B3T A tool holding assembly 1 comprises a tool holder 2 with a shank 3 which is securable in a support member 4 on a machine tool, a micrometer adjustment device 7 being provided to adjust the position of the tool 2 axially with respect to the shank 3 and hence the distance of the cutting tool 12 from the support member 4. The device 7 surrounds the shank 3 and comprises an externally threaded tubular portion 51 with a flange 52 which is attachable to the support member 4 and an interengageable internally threaded tubular portion 54 with a flange 58 which is securable to the tool holder 2. The portion 54 is rotatably mounted by balls 61 in the flange 58 whereby rotation of the portion 54 on the threaded portion 51 effects axial displacement between the portions and thus between the tool 12 and support 4. A knurled ring 57 is provided on the tubular portion 54 and has a graduated micrometer scale 56 which co-operates with a datum mark on the flange 58. The ring 57 frictionally engages the tubular portion 54 to effect its rotation but also permits relative movement between the ring and portion to facilitate zeroing of the scale.
Patent GB-1101915-A (GB)
Title: Fluid flow control valves
Inventor: LEE DENIS ERNEST
IPC: A61F2/24
Filed: 1964-10-09
Abstract: 1,101,915. Valves. JOSEPH LUCAS (INDUSTRIES) Ltd. 22 Nov., 1965 [9 Oct., 1964], No. 41235/64. Heading F2V. [Also in Division A5] A check valve suitable for use in a human heart comprises a seat member 10 adapted to be stitched or otherwise secured in an orifice, and a valve member 14 having a wing 13 that extends through a slot 12 in a narrow web 11, the wing having an enlarged end 15 to prevent removal of the valve member. The web 11 is dished so that end 15 tends to move towards the centre of the web when the valve opens. The parts may be made of a non-toxic synthetic resin which is immune to attack by substances in the blood and which has a density approximately equal to that of blood.
Patent GB-1437227-A (GB)
Title: Light amount memorising circuit
IPC: H03K17/687
Filed: 1973-09-03
Abstract: 1437227 Exposure control circuits ASAHI KOGAKU KOGYO KK 3 Sept 1973 [22 Sept 1972] 41312/73 Heading G2A [Also in Division G4]  A light measuring device comprises a FET 4 serving as input switch, a memory capacitor 5, a feedback loop 6, 8, 11 for applying a voltage, which follows the voltage on the capacitor, to the gate of the FET 4 so that its gate-source potential remains constant, and a circuit 9, 10, 11 for lowering the gate potential to below pinch-off when the storage capacitor 5 is charged. The source 1 may be a photo diode 1 forming part of a camera. The RC circuit 9, 10 forms a timing circuit which, with switch 2, 3 open, holds transistor 11 non- conductive until the voltage across the capacitor reaches the threshold value of the transistor, upon which the transistor conducts and renders the FET 4 non-conductive. As the voltage across the storage capacitor 5 rises, the source potential of FET 6 and the emitter potential of transistor 8 rise. The gate potential of the FET 4 also rises and the gate-source potential is kept at a chosen value e.g. zero. A modification is described Fig. 2, (not shown), in which the source is a photovoltaic element coupled to the source electrode of the switching transistor through a further FET forming, a buffer.
Patent GB-1369614-A (GB)
Title: Zeolites of the faujasite type
IPC: A61F7/00
Filed: 1971-09-07
Abstract: 1369614 Synthetic faujacite zeolites AZOTE ET PRODUITS CHIMIQUES SA 7 Sept 1971 [8 Sept 1970] 41750/71 Heading C1A Synthetic faujacite zeolites having the molar composition of the general formula: where x is 0À1-0À8 are prepared by forming a gel of sodium and/or potassium aluminosilicate from a mixture having the following composition expressed as the molar ratio of the oxides: and then adding amorphous silica of size less than 100 Á and aqueous NaOH and/or KOH to form an amorphous mixture having the following composition expressed as the molar ratios of the oxides: and then crystallizing the mixture at a temperature of 20-105‹ C., filtering, washing and drying the precipitate and then finally activating the product. The gel may be formed by adding a solution of sodium and/or potassium silicate to an aqueous solution of sodium aluminate. The particle size of the amorphous SiO2 may be less than 50 Á. The faujacite may be activated by heating to a temperature of 250-600‹ C. under a pressure of less than 10<-1> mm.Hg.
Patent GB-902867-A (GB)
Title: Improved cold setting cement composition
IPC: C04B28/24
Filed: 1960-12-05
Abstract: A cold setting cement composition according to Specification 816,233 comprises a particulate filler contributing the major proportion of the solids content of the cement; an aqueous silica sol as a binder for the filler in an amount sufficient to bond the filler into a coherent mass, the filler being essentially insoluble in the water of the silica sol and substantially inert with respect to the sol; from 0,2% to 15% by weight, based on the weight of the filler, of a solid alkali metal silicate having an alkali metal oxide to silica mole ratio within the range of from 1 : 1 to 1 : 4,2, as a setting agent for the silica sol; and the composition includes additionally from 0,3% to 3% based on the weight of the silica sol of a finely divided, solid, water insoluble material comprising silica, an inorganic silicate or an inorganic oxide, the particles of material having at least one dimension of colloidal size (about 200 millimicrons); colloidal silica of a particle size between 10 and 100 millimicrons, quartz, clay minerals such as an attapulgite clay, sodium, potasium, lithium, magnesium or calcium montmorillonite, sepiolites and illites, and aluminium, titanium, zirconium, stannic, chromic and ferric oxides, of which the particles have at least one dimension of colloidal size, are specified.  Examples are disclosed.
Patent GB-1010037-A (GB)
Title: Improved hose coupling
IPC: F16L33/01
Filed: 1964-10-14
Abstract: 1,010,037. Hose couplings. F. R. DUFFIELD. Oct. 14, 1964, No. 41821/64. Heading F2G. A hose coupling or other hose fitting comprises a ferrule 10 and a stem 11 between which a hose end may be clamped, the ferrule being provided with an aperture 21 passing through to the bore thereof, a cutting edge located at the end of the aperture in the bore of the ferrule being adapted to skive the outer layer from the hose end 16 during relative rotation of the ferrule and hose end. The stem 11 may be tapered to grip the bared reinforcement 17 of the hose between the stem and the grooves 18 of the ferrule. If the edge of the hole 21 does not adequately skive the hose a sharp tool 24 may be introduced into the hole or a hard, sharp insert may be permanently positioned in the hole.
Patent GB-1221441-A (GB)
Title: Vacuum boxes for paper-making machines
Inventor: ARMES GEORGE HARRY
IPC: D21F1/52
Filed: 1966-09-20
Abstract: 1,221,441. Papermaking. C. H. JOHNSON & SONS Ltd. 18 Dec., 1967 [20 Sept., 1966], No. 41826/66. Heading D2A. A vacuum box for a paper machine has a top comprising a number of parallel continuous members (5) of T-shaped cross-section and a smooth upper surface, each arranged to receive a solid facing strip (7), which strips together form a plurality of flat surfaces over which the machine wire may run, and means (10) sealing the spaces between the members at each end of the box. The facing strips and sealing inserts are preferably of high-density polyethylene, but may be of other low-friction materialsstainless steel, ceramics or other plastics.
Patent GB-1517509-A (GB)
Title: Mixer
IPC: B01F5/00
Filed: 1975-09-16
Abstract: 1517509 Mixing liquids BRITISH PETROLEUM CO Ltd 16 Sept 1975 [26 Sept 1974] 41863/74 Heading B1C Apparatus for homogenizing a liquid comprises a tank there - for and a pump inside or outside the tank which recirculates the contents through a Coanda body immersed in the liquid; a Coanda body being defined as one having a slot with one lip extended and diverging from the slot axis so that liquid emerging from the slot tends to stick to the extended lip. As shown the body may have an annular slot 9 the emerging liquid from which flows through a venturi-like body, or over a tulipshaped one, which comprises the extended lip 10, 11 or 11'. An array of such bodies may be downwardly directed see Fig. 3 (not shown). Fig. 4 (not shown) depicts an arrangement in which the liquid flows over a structure in the base of the tank comprising portions of two external Coanda bodies.
Patent GB-869556-A (GB)
Title: Improvements in and relating to luminescent screens
IPC: H01J9/22
Filed: 1958-12-29
Abstract: 869,556. Luminescent screens and materials. SYLVANIA ELECTRIC PRODUCTS Inc. Dec. 29, 1958 [Dec. 31, 1957], No. 41942/58. Class 39(1). A process of forming a luminescent screen upon a substrate e.g. the viewing panel of a C.R.T. image display device, comprises vapour-depositing under vacuum a film of an activated or unactivated -phosphor upon the substrate, vapour-depositing under vacuum a coating of an activator over the phosphor film, and subsequently firing the screen at a temperature up to 600‹C to promote activation of the phosphor. The phosphor can be vapour-deposited together with a flux such as chlorides, bromides, iodides or sulphates of lithium, barium, sodium or potassium. The phosphor can be zinc or cadium sulphide or selenide and the activator can be silver, copper, manganese, gold or zinc and or salts thereof such as sulphides or selenides. In an example silver or silver chloride is used as activator for zinc sulphide phosphor and the firing is at 550‹C or 450‹C in vacuum or air for about one and a half hours to allow some of the silver to diffuse into the phosphor layer so forming a transparent silver activated zinc sulphide film with a dark malt-appearing layer composed of silver and silver sulphide. The weight of silver activator used can be in excess of normal, i.e. 0.01 % by weight, and can be 10% of the zinc sulphide, the weight of silver used determining the light transmission through the screen. The firing temperature can be from 400‹C to 600‹C and can be from several minutes to 2 hours. The dark matt-appearing layer referred to above may be removed by an alkali solvent such as potassium hydroxide, cyanide or thiosulphate and the remaining silveractivated sulphide film provided with an electron permeable metallic light-reflective film or an indexing pattern.
Patent GB-1281686-A (GB)
Title: Method of making a structural material
Inventor: ATTECK SUSANNE KLARA
IPC: E04C2/36
Filed: 1968-09-04
Abstract: 1281686 Honeycomb laminates; forms of wood SKATTECK 28 Aug 1969 [4 Sept 1968] 41962/68 Headings B5L and B5N A honeycomb sandwich material is made by feeding parallel strips of sheet material into contiguity with an endless belt which is adapted for guiding and/or shaping the strips, shaping the strips into sinusoidally curved form with the curves of adjacent strips being out of phase so as to abut at intervals, and adhesively bonding facing sheets to the shaped strips. According to specific embodiments (i) the strips are passed tangentially to the belt, which is provided with cylindrical formers to shape the strips, and (ii) the belt is used to guide the strips, which are shaped by a reciprocating guide mechanism. The strips may be made from hardwood or softwood veneers and may be in a softened or natural wet state and may be bonded to the facing sheets in either dry or wet state. The veneers may be obtained from natural logs or bonded wood particle logs. The facing sheets may be wood or metal.
Patent GB-1291322-A (GB)
Title: Process and apparatus for continuously annealing a fused cast non-metallic refractory body
IPC: C04B35/657
Filed: 1970-09-03
Abstract: 1291322 Annealing refractory bodies ASAHI GLASS CO Ltd 3 Sept 1970 [18 Nov 1969] 42231/70 Heading C1M A fused cast non-metallic refractory body of crystalline or crystalline and glass structure is annealed by solidifying a malt at a temperature of less than 300‹ C. below the melting temperature of the lowest melting crystalline phase or the solidifying temperature of the glassy phase, holding at this temperature until a substantial amount of solidification has occurred and gradually cooling the solidified product. The materials are fused in a furnace, cast into a mold and the mold placed on a carrier preheated to a temperature greater than 500‹ C. The carrier is then passed, using a railway system 5 into a solidification chamber 1 of an annealing tunnel. The chamber 1 is heated by burners or electric elements. After solidification the carrier is passed into a cooling zone 2 which is separated into a plurality of sections 12, 13, 14, 15 each separated by a flexible damper 17 Preferably the cooling speed is between 30‹ and 90‹ C. per hour when the temperature is greater than 1000‹ C. and between 50‹ and 120‹ C. per hour when the temperature is between 600‹ and 1000‹ C.
Patent GB-1188848-A (GB)
Title: Pulse Width Modulated Laser.
Inventor: FENNER GUNTHER ERWIN
IPC: H01S5/062
Filed: 1967-09-18
Abstract: 1,188,848. Semi-conductor lasers. GENERAL ELECTRIC CO. 18 Sept., 1967 [14 Oct., 1966], No. 42476/67. Heading H1C. Pulse width modulated output light pulses are obtained from a semi-conductor junction laser by applying an amplitude modulated bias signal superimposed by a train of constant amplitude current pulses to the laser diode. The interval between initiation of current and occurrence of stimulated emission in a GaAs laser is determined by the amplitude of the supplied current. Hence if the amplitude increases the delay decreases and since the output pulse of the laser ceases at the same time as the termination of the applied pulse, pulse width modulation of the output light pulse is achieved, Fig. 2 (not shown). Clock pulse generator 13 applies a constant amplitude pulse train to laser diode 10 together with a unipolar modulated bias signal through diode 19, the modulated bias signal being applied constantly to the laser 10 and having a peak value less than the threshold lasing value. The laser thus produces a pulse of light in response to each pulse of the train and begins lasing after a delay following the leading edge of the pulse dependent on the instantaneous value of the modulated bias current.
Patent GB-1358729-A (GB)
Title: Valve means for releasing a liquid or semi-liquid substance from  a pressurised container
IPC: F16F1/36
Filed: 1971-09-13
Abstract: 1358729 Valve for pressurized dispensing container SAMUEL TAYLOR PTY Ltd 13 Sept 1971 42545/71 Heading F1R A valve for a pressurized dispensing container includes a discharge tube 13 which is laterally displaceable to move a cupped flange 12 at its inner end from sealing engagement with an element 11 carried by a support 10 forming a cap of the container, there being first and second resilient means 22, 23 applying axial and radial pressure respectively to the cupped flange 12 to restore it to the closed position. These resilient means are integrally moulded on plastics housing 15.
Patent GB-1356998-A (GB)
Title: Device for detecting and locating a fuel assembly can failure
IPC: G21C17/04
Filed: 1971-09-13
Abstract: 1356998 Valves COMMISSARIAT A L'ENERGIE ATOMIQUE 13 Sept 1971 [22 Sept 1970] 42639/71 Heading F2V [Also in Division G6] A selector valve for sampling the coolant from the fuel assemblies within a reactor core comprises a plate 1a which is rigidly fixed to the reactor core and in which sampling tubes 2 are fixed, the plate 1a having a central hollowedout portion in which the hub of a base-plate 1b pierced by orifices each corresponding to one of the tubes 2 is located, the plates 1a, 1b being secured together by means of screws 36. Within the interior of a easing 42 a first selector 4 has a bottom plate 46 of triangular shape, each vertex of the triangle being extended by a suction member 6. Shoes (not shown) permit frictional contact between the suction members 6 and the base-plate 1b whilst a pin 45 integral with plate 46 and rotatable mounted in an orifice 47 of plate 1b ensures accurate centering of the assembly in rotary motion. Three ducts 8 extend between the bottom plate 46 and a flange plate 10, which plates are connected to each other by a perforated sleeve 48 pivotally mounted at both ends by Cardan-type coupling systems 49. Flange plate 10 is connected to a drive mechanism (not shown) by a control tube 50, a rod 51 within the tube 50 serving to actuate a second selector 12 which includes a selector plate 52 and a centering pin 53. Selector plate 52 is pierced by six holes, three of which are located at the same intervals as the ducts 8 and can each correspond simultaneously to one of the three duets 8 in order that the entire quantity of fluid collected by the selector 4 passes into the control tube 50 and thence via a duct 14 to a pump 16. The three other holes are spaced differently and make it possible to put only one of the ducts 8 into communication with the duct 14.