baber/WOPTO huggingface dataset:
Patent GB-1375388-A (GB)
IPC: H04N9/31
Filed: 1971-12-15
Abstract: 1375388 Modulating light GENERAL ELECTRIC CO 15 Dec 1971 [17 Dec 1970] 58238/71 Heading H4F In a colour television image projection system of the type wherein red and blue video signals amplitude modulate respective carriers which are then combined and used to velocity modulate an electron beam scanning a deformable medium so that respective modulated diffraction gratings are formed thereby, the medium being situated between input and output masks of a Schlieren system, e.g. as in Specifications 1,108,464 and 1,089,138, it is found that the bars of the output mask tend to block some of the diffracted light corresponding to parts of the sidebands of the two carriers, reducing its contribution to small area highlights, and if scattered into small area black regions, degrading the small area contrast. For example as described, using a red 16 MHz carrier and a blue 12 MHz carrier, and a mask with slits 75 and bars 76, first order diffraction by the red carrier frequency itself, region 78, Fig. 4B, enables red and blue to be passed and blocked respectively, the converse holding for the blue carrier frequency, region 77. Light diffracted to the right of region 78 by the upper red sideband is also transmitted but that corresponding to the lower sideband falls on bar 76. Blue light is preferentially passed according to the lower sideband in a similar manner (also Figs. 3A and 3B (not shown)). It is now proposed to filter the red and blue A.M. signals before they are mixed, in such a way as to decrease the amount of sideband diffracted light which is blocked by bars 76, i.e. by using filters with the characteristics of Figs. 5A and 5B for the red and blue signals respectively. Thus the red signal comprises the carrier, the upper sideband and only a vestigial lower sideband. The blue electric signal comprises both sidebands but since the deformation sensitivity of the medium is greater at lower frequencies, the effect is one of a blue carrier plus the lower sideband and a vestigial upper sideband. The characteristic of Fig. 5B may be displaced from its symmetrical relation with the blue carrier within the range #.
Patent GB-1443709-A (GB)
Title: Disc brakes
IPC: F16D55/40
Filed: 1972-12-19
Abstract: 1443709 Full-face disc brakes; air-exclusion; cooling DUNLOP Ltd 5 Dec 1973 [19 Dec 1972] 58655/72 Heading F2E A multi-plate wheel disc brake comprises a number of annular stator discs 1, Fig. 1, axiallyslidably coupled with a non-rotatable torquetaking structure 3, 4 at their inner peripheries and interleaved with a number of annular rotor discs 5 axially slidably coupled at their outer peripheries with the wheel (not shown) a brakeapplying mechanism 10, 9, 11, 12 arranged to axially displace the discs into frictional engagement, and an annular air-excluding member 15, Figs. 1, 2, which, in combination with the torque-taking structure 3, 4 and the remainder of the brake structure substantially eliminates the axial flow of air through the brake adjacent the inner periphery of the stator discs. The airexcluding member may be of asbestos or glassfibre-based heat-insulating material (Fig. 2 is inverted relative to Fig. 1). In Fig. 4 an annulus 19 of heat-insulating material is secured together with sheet metal annular bands 20 by rivets 21 to thrust ring 11. In Fig. 3 (not shown) an annular steel sheet constitutes member 15 and has its inner periphery bent towards the discs. Preferably, heat transfer from the stator discs to the torque tube 4 is reduced by providing sheet metal heat shields 13, Fig. 1, between keys 3 on tube 4; shields 13 are spaced from tube 4 by mounts 14 of heat-insulating material. In Fig. 5 (not shown) the radially-inner periphery of member 15 overlaps the adjacent axial end of each heat shield 13.
Patent GB-1451810-A (GB)
Title: Heated fluorescent lamp
IPC: H01J61/52
Filed: 1973-12-21
Abstract: 1451810 Fluorescent discharge lamps XEROX CORP 21 Dec 1973 59535/73 Heading H1D A fluorescent lamp has a resistive coating 4 to which a heating current can be applied to maintain the lamp at an optimum operating temperature. In one embodiment, Fig. 1, the coating 4 is applied to the exterior of the glass envelope 1 which is coated internally with a phosphor layer 2 and a white translucent reflective coating 3, the coatings being applied to define an aperture 5. The resistive coating 4 may comprise conductive particles e.g. of a metal such as Ag, Al, Ni, Cu or mixtures thereof dispersed in an insulating carrier e.g. a solution of an insulating resin or polymer in either oil or water. Connection to the resistive coating 4 is effected through spring clips 6, Fig. 2, which may also serve to hold the lamp in a fixture. Current is supplied to the lamp through contacts 7. The coating 4 may be applied to only half of the lamp circumference, and the reflective coating 3 may be omitted Fig. 3 (not shown). In an alternative embodiment Fig. 5 (not shown) the coating 4 is applied to the inside of the envelope and is separated from an internal phosphor coating by an insulating layer of varnish, shellac, cellulose, polypropylene, cellulose acetate or mixtures thereof. The resistive coating 4 may act as its own thermostat or a thermocouple may be attached to the lamp Fig. 4, (not shown) to control the heating current to a value which maintains the lamp temperature constant at about 38‹C, corresponding to a mercury-vapour pressure of about 6À5 X 10<SP>-3</SP> torr.
Patent GB-1287803-A (GB)
Title: Process for the manufacture of crystalline polyurethane plastics products based on diisocyanates and linear polyesters
IPC: C08G18/65
Filed: 1969-12-08
Abstract: 1287803 Polyurethanes CIBA-GEIGY AG 8 Dec 1969 [9 Dec 1968] 59897/69 Heading C3R [Also in Division C2] Cross-linked, crystalline polyurethanes are prepared by reacting (a) a linear polyester consisting essentially of elements of the formula in ester-relationship to one another each of which elements must occur in the molecule at least four times and at most 30 times on average, (b) a cross-linking agent which is a polyhydroxy compound containing at least 3 alcoholic hydroxyl groups and (c) a diisocyanate, in amount such that the overall NCO/OH ratio is 0À9 to 1À1 : 1, the equivalent ratio of components (a) and (b) being chosen so that 1 equivalent of the total amount of the total amount of OH groups is composed of 0À95 to 0À5 equivalents of OH groups from the polyester (a) and 0À05 to 0À5 equivalents of OH groups from the polyhydroxyl compound (b). The polyester is prepared by reacting succinic acid or its anhydride with 1,4- butane diol. Preferred cross-linking agents (b) are aliphatic or cycloaliphatic polyalcohols having 3 to 6 OH groups or their reaction products with a monoepoxide. Particularly suitable cross-linking agents are glycerine or hexanetriols or their reaction products with ethylene oxide, propylene oxide or styrene oxide. Aliphatic, cycloaliphatic or araliphatic diisocyanates are preferred but aromatic diisocyanates may also be used. Conventional catalysts may be added to the reaction mixture. In a typical example, a polyester from succinic acid and 1,4- butane diol having an OH equivalent weight of 935 is mixed with 3-hydroxymethyl-2,4-dihydroxypentane and the mixture warmed with isophorone diisocyanate to form a moulded product. Uses.-As resins for dipping, casting, laminating, impregnating, coating, sealing, potting, insulating and as adhesives.
Patent GB-1331623-A (GB)
Title: Laundry washing machines and methods
IPC: D06F33/65
Filed: 1970-01-17
Abstract: 1331623 Washing machines G HELD and F ELLWANGER 17 Dec 1970 [14 Jan 1970] 60012/70 Heading D1A Washing is performed at above atmospheric pressure to increase the washing temperature in a closable treatment liquid container 7 which is connected by an open-ended sealing tube 30 to a condenser 31, the tube in operation containing a steam-foam mixture, from the container 7 sealed by condensate from the condenser 31; the pressure and hence temperature in the container depending on the pressure head developed in the tube. As shown the drum 7 is supported by a hollow shaft 1 with holes 3 where it passes through a fluid distributor 2 and enclosing an outlet tube 9 from the drum to the tube 30 and a drain valve 11. Hot water is supplied to the distributor 2 from a steam-heated water heater 20 either directly or through a detergent metering vessel 27 or from a preheater 16 surrounding the condenser 31 through a second detergent metering vessel 13. From the distributor it passes through the shaft 1, radial ducts 5 and a distributing ring 6 to the drum. The washing is further heated by steam supplied to the distributor 2 through a line 29. An inlet valve 17 in this line may be controlled automatically from a thermostat 32 in the tube 30. The drum has at least two radial partitions and as shown one, 34, is perforated and the other, 37, comprises a perforated wall 36 adjacent a non-perforated wall 36. The drum is emptied by rotating it clockwise (Fig. 2) when the liquid runs down the wall 36 through the tube 9 and drain valve 11. For spin-drying the drum may be provided with spring-loaded plate valves on its periphery which open at the drum centrifuging speed, ejected liquid collecting in the casing for the drum.
Patent GB-1337131-A (GB)
Title: Method of manufacturing objects of reinforced plastics material
IPC: C08J5/24
Filed: 1970-12-18
Abstract: 1337131 Reinforced polyester resins ALLMANNA SVENSKA ELEKTRISKA AB 18 Dec 1970 [19 Dec 1969] 60141/70 Heading C3P [Also in Division B5] An object containing reinforcing material and an impregnating resin in cured state is manufactured by impregnating a reinforcing material with an uncured impregnating resin containing an unsaturated polyester having free hydroxyl groups, an unsaturated monomer and a polyisocyanate, with an accelerator for polymerization reactions between unsaturated groups and with a metal chelate, distributing a catalyst for polymerization reactions between unsaturated groups over a surface of the impregnated reinforcing material, compressing and/or shaping the impregnated reinforcing material, and curing the impregnating resin, said impregnating resin, when in the presence of the accelerator and the metal chelate, being capable of being cured without heat being supplied. In the examples glass fibre mats consisting of glass fibre bundles bound with a binder, e.g. polyvinyl acetate or a polyester resin, glass fibre fabrics and paper are impregnated with a resin comprising polyesters prepared from maleic anhydride, phthalic anhydride, ethylene glycol, isophthalic acid, propylene glycol, fumaric acid, hexachloroendomethylenetetrahydrophthalic acid and diethylene glycol, hydroquinone, styrene, toluylene-2,4- or 2,6-diisocyanate, cobalt naphthenate, zinc stearate, chalk, titanium acetyl acetonate, naphthylene - 1,5 - diisocyanate, tin octoate, malonic acid methyl ester titanate, aluminium acetyl acetonate, dolomite and antimony trioxide and the resin is cured using cyclohexanone peroxide and methyl ethyl ketone peroxide.
Patent GB-1417978-A (GB)
Title: Message switching systems
IPC: H04L12/58
Filed: 1971-12-30
Abstract: 1417978 Digital transmissions; switching systems SPERRY BAND Ltd 22 Dee 1972 [30 Dec 1971] 60689/71 Heading H4P A common bus 9 interconnecting data processors 1 to 6 and data stores 7, 8, continuously carries an interrogating signal while it remains unoccupied, the processors being given in turn the opportunity to claim use of the bus. The processors 1 to 4 handle incoming and outgoing information on lines 12, and processors 5, 6 are linked to terminal equipment such as visual displays 13, 14, 17, 18, printers 15, 19 and tape units 16, 21. Stores 7, 8 are drums and have buffers 22, 23. In one embodiment (Fig. 2, not shown) each processor contains logic circuitry in which an addressing signal circulating round the two wires (27) of the bus 9 is passed from a receiver (25) to transmitter (26) through gates (28, 31) unless the processor wishes to take control of the bus. In this case it presents a BUS REQUEST signal to a gate (33) which inhibits other gates (28, 29) thereby preventing a bistable (31, 32) from responding to the circulating address signal on the bus wires (27). When this signal arrives therefore, the signals from 25 and 31 will be different, and an exclusive OR circuit (36-39) enables gate 34 in the presence of the REQUEST input, so that a gate (35) gives a BUS GRANT signal. This enables the processor to proceed to transmit its data, or to interrogate its chosen store or other processor. The blocking of the bi-stable (31, 32) prevents any other processor from using the bus. In a second embodiment (Fig. 3, not shown) a counter (42) driven by an oscillator (41) generates a different 5-bit binary address for each processor on line pairs (44-48) this being decoded at each processor by appropriate wiring reversals at the inputs to receivers (49-54). When a station recognizes its address, a gate (55) is enabled to respond to the BUS REQUEST signal if present, to generate the BUS GRANT signal (at 56) and to inhibit (via 57 and 43) the oscillator drive to the counter (42), thus suspending the scan until the current processor has finished. Each processor unit has a fault alarm and is unpluggable without affecting the system, the Fig. 2 embodiment however requiring an odd number of processors in the loop with a reversal between each of the bus wires (27).
Patent GB-1243264-A (GB)
Title: Smoke suppressant compositions for petroleum fuels
IPC: C10L1/18
Filed: 1968-12-31
Abstract: 1,243,264. Liquid fuel. CITIES SERVICE OIL CO. 31 Dec., 1968 [2 Jan., 1968], No. 61818/68. Heading C5G. A liquid hydrocarbon fuel contains as a smoke suppressant a minor proportion of both a group IIA and a group IIB metal salt of an organic carboxylic acid having at least 4 carbon atoms. A preferred composition is a diesel fuel containing 0À1-0À6 wt. per cent of Ba and Zn- 2-ethylhexanoates. The composition may also contain a minor proportion of an ether, particularly the mono and dialkyl ethers of ethylene glycol, and of a group IIA metal alkaryl sulphonate. An additive composition comprising both groups II A  and II B  metal carboxylates and an ether is also claimed.
Patent GB-711167-A (GB)
Abstract: 711,167. Signs. NEUGASS, E. A. Dec. 12, 1951, No. 29129/51. Class 3(2) [Also in Group VIII] A laminated sheet suitable for illuminated instrument panels comprises a transparent sheet 11 with which is combined a film or coating of light-coloured, translucent material 12 and an outer film or coating of dark-coloured, opaque, elastomeric material 13 having a .mat surface. The transparent layer may be of polymethyl methacrylate and the translucent and opaque layers may be of polyvinyl resin such as a polyvinyl chloride, a copolymer of vinyl chloride with vinyl acetate or vinylidene chloride, or polyvinylidene chloride, which may be plasticized or blended with butadiene-acrylonitrile synthetic rubber. The layers may be united by adhesive or by hot-pressing. The layers 12 and 13 may be white and black respectively. The opaque layer 13 is cut away to uncover portions of the underlying translucent layer 12 defining characters 15. The material of the translucent layer 12 may extend into the cut-out portions to lie flush with or protrude beyond the surface of the opaque layer. The sheet may be illuminated by an embedded source of light 19, or may be illuminated from the edges, or from the rear.
Patent GB-732668-A (GB)
IPC: F16D33/08
Abstract: 732,668. Hydraulic clutches. SINCLAIR, H. Jan. 27, 1953 [Feb. 4, 1952], No. 2925/52. Class 69 (2). [Also in Group XXXVII] A hydraulic coupling is provided with centrifugally-operated valves which open on a slight change of speed to partially reduce the quantity of fluid in the coupling. The ball valve 19 is held against its seat by centrifugal force, but, on a slight reduction of speed due to overload on the driving motor, the spring 21 will unseat the valve, allowing the working fluid to escape at a steady rate which will be equalized by the rate of filling from the scoop 15 when a certain degree of filling is reached. Specifications 493,703, 517,989 and 538,217 are referred to.
Patent GB-2025932-A (GB)
Title: Indoloisoquinolines, and Processes for Producing them
IPC: C07D471/04
Filed: 1978-06-13
Abstract: Indoloisoquinolines of the formula,   <IMAGE> and pharmaceutically acceptable acid addition salts thereof, wherein R1 and R4 are each, independently of one another, hydrogen, halogen, nitro or lower alkoxy and R2 and R3 are each independently of one another, hydrogen, lower alkyl, lower alkenyl, cycloalkylalkyl or a group of the formula,   <IMAGE> or -A-O-B wherein A is C1-7 alkylene; R5 and R6 are each, independently of one another, hydrogen or lower alkyl, or together with the adjacent nitrogen atom, form a 5- or 6-membered heterocyclic ring; and B is hydrogen, lower alkyl, lower alkenyl or lower alkanoyl; provided that, when at the same time, each of R1, and R4 is hydrogen and R3 is methyl, then R2 is other than hydrogen, have potent anti-tumour activity. They can be prepared by reacting a compound of the formula,   <IMAGE> wherein R1, R3 and R4 are as defined above with a reactive derivative of the formula,  R8-OH wherein R8 is lower alkyl, lower alkenyl, cycloalkylalkyl or a group of the formula   <IMAGE> or -A-O-B, wherein A, R5, R6 and B are as defined above. Alternatively, when R2 is hydrogen, they can be prepared by heating a compound of the formula   <IMAGE> wherein R1, R3 and R4 are as defined above.
Patent GB-2028366-A (GB)
Title: Heat Processing of Pulverized Carboniferous Material
IPC: C10L9/08
Filed: 1978-08-21
Abstract: Solid carboniferous material, preferably pulverized brown coal, is processed by heating the material in two stages. During the first stage 1 brown coal is heated by a gaseous heat carrier 4 to a temperature at which thermal decomposition of the brown coal begins. During the second stage 7 the brown coal is heated by the gaseous heat carrier 9 to a temperature at which an intensive thermal decomposition of the brown coal takes place. The gaseous heat carrier delivered at the second stage of heating is produced from a burner 15 which is fed with air and low-grade products, such as heavy tars 12 and pyrogenic water 14 are sprayed into the gaseous heat carrier. <IMAGE>
Patent GB-2004922-A (GB)
Title: Stable, aqueous dyestuff or pigment composition
IPC: C09B67/46
Filed: 1978-09-25
Abstract: Stable, aqueous dyestuff or pigment compositions, which are non- migrating, highly concentrated, low in dispersing agent, finely dispersed and free-flowing contain   (a) 30 to 60% by weight of one or more dyestuffs or pigments, which are slightly soluble to insoluble in water and which have an average particle size below 10 mu m (microns), (b) a water-soluble salt of an acid resin which is a maleate polymer or copolymer,   (c) a water-soluble, non-ionic dispersing agent,   (d) one or more substances which lower the freezing point,  and     (e) water.   They can additionally contain a low molecular weight, water-soluble, anionic dispersing agent in an amount of at most 5% by weight and/or formaldehyde and/or fungicides. The compositions are suitable for dyeing or printing natural or synthetic textile materials and can be applied either directly or by transfer printing using a transfer material.
Patent GB-2008325-A (GB)
Title: Transformer tap-changers
IPC: H01F29/04
Filed: 1978-10-19
Abstract: A load diverter switch for a transformer tap-changer comprises a cylindrical oil vessel (1) and a withdrawable load diverter switch assembly insert, which has a generally cylindrical housing (5, 6, 7) with stationary main and auxiliary contacts (10-13) mounted on the housing wall and parallel connected main stationary continuous current contacts (20, 22) bolted to terminals (24, 25, 26) provided on the wall (1) of the cylindrical oil vessel. The movable continuous current contacts (19, 21) cooperate with the stationary contacts (20, 22) through gaps in the housing (5, 6, 7) and are mechanically coupled to the movable main contacts 14, 17. <IMAGE>
Patent GB-2033279-A (GB)
Title: A Spanner
IPC: B25B13/06
Filed: 1978-10-31
Abstract: The spanner has a tubular portion 3 having an internal surface of hexagonal or other cross-section for applying torque to a screw threaded fastener such as a nut. Ejection means in the form of a spring 4 is provided. <IMAGE>
Patent GB-2012941-A (GB)
Title: Sectional Radiator for Air Cooling an Oil Filled Transformer
IPC: F28D1/03
Filed: 1978-12-07
Abstract: A radiator for cooling oil comprises a plurality of sections (1) each formed from a pair of half shell members (7) welded together at their edges (8) and at intermediate regions (9, 11, 12) to define longitudinal passages (16) extending between inlet and outlet means (2), uniform distribution and collection of the oil flowing through each radiator section being achieved by the provision of diagonal flow channels (15) interconnecting the longitudinal passages (16). <IMAGE>
Patent GB-2011087-A (GB)
Title: Electromagnetic detection of flaws in metal products
IPC: G01N27/90
Filed: 1978-12-13
Abstract: A device for the detection by Foucault currents of surface flaws in metal products 1 whereof at least one surface of which presents an axis of symmetry, comprises electromagnetic coils coupled to the inspection surface 2 and the complex impedence of which is analysed at one or more frequencies of the supply current. The device comprises a plurality of coils a, b, c, a', b', c' mounted opposite the inspection surface 2 of the product 1 along lines which are symmetrical in relation to its axis, said coils being grouped in pairs allocated to separate measuring bridges and the entire width of the surface inspected being covered by the assembly of coils. The assembly of coils is caused to move in the longitudinal direction relative to the product. The coils may be inserted in respective recesses of an insulating block having one face profiled to correspond to the face 2. <IMAGE>
Patent GB-2041780-A (GB)
Title: Gas (vapour)-liquid contact apparatus for substance and heat transfer
IPC: B01D3/14
Filed: 1979-02-14
Abstract: Counter-current or co-current gas (vapour)-liquid contact apparatus comprises stages consisting of a liquid charging zone (4), a contacting zone (6) and a liquid separation zone (5) arranged one above the other, the zones being surrounded by a liquid return system (2), wherein the zone (4) contains individual elements with inclined perforated side walls which narrow the free flow cross-section in the direction of the gas current; the zone (6) consists of several layers of spaced, parallel, form-perforated individual elements with inclined side walls which narrow the free flow cross-section in the direction of the gas current, the axes of the elements of alternate layers being mutually perpendicular; the zone (5) is formed from several, staggered layers of individual elements consisting of a lower part (7) with inclined walls narrowing the free flow cross-section in the direction of the gas current, and a closed upper part (8) of roof form spaced thereabove, and, the liquid return system (2) comprises outlet openings (11) above zone (5). <IMAGE>
Patent GB-2043503-A (GB)
Title: Straightening
IPC: B21D3/06
Filed: 1979-03-09
Abstract: Straightening equipment for rod or bar material (A) incorporates two spaced roll stations (1) each having an opposed pair of driven rotatable rolls (2, 3) of respectively concave and convex surface section, and an intermediate stage (5) comprising a plurality of spaced movable guide tubes (6) arranged between said roll stations (1), to effect supplementary straightening action as rotating bar material (A) passes between said roll stations (1). <IMAGE>