baber/WOPTO huggingface dataset:
Patent GB-1317359-A (GB)
Title: Diverter/mixing pinch valve
IPC: F16K7/06
Filed: 1971-11-30
Abstract: 1317359 Valves RKL CONTROLS Inc 30 Nov 1971 [2 Dec 1970] 55428/71 Heading F2V A three-way pinch valve for fluids and particulate solids, comprises a resilient Y-shaped valve body 22 associated with means for selectively pinching branches 24, 26 of the body  22. The body 22 may be of methane, neoprene, buna N, butyl or gum rubber. The pinching means comprises a drive shaft 46 which can be rotated by an electric-motor-driven actuator 52, by a pneumatic or hydraulic actuator or by a self-locking hand lever or wheel. 'The shaft 46 is connected to a pair of parallel pinch bars 98, 100 through arms 90, 92 and to a further pair of parallel pinch bars 72, 74 through cranks 64, 66 and links 68, 70, the bars 72, 74 being restrained to linear movement by guide slots 80, 82. Bars 98, 100 are supported in spherical bearings 94, 96 and are adjustable via means 102 to ensure fluid-tightness of the pinched branch. The electric motor for driving the actuator 52 is reversible and is selectively driven in the desired direction by appropriate adjustment of a threeposition switch (128), Fig. 7, (not shown). This energizes the motor through appropriate limit switch 122 or 124 which is automatically opened by associated limit arm 104 or 108 to de-energize the motor when the selected branch is fully closed. Moreover, the switch 122, 124 simultaneously energizes a light 130 or 132 to indicate that the branch is closed. The valve housing is provided with cover-plates (140), Figs. 1 and 2, (not shown), which permit access to the interior for inspection and pinch-bar adjustment.
Patent GB-1097089-A (GB)
Title: Improvements in or relating to apparatus for controlling the rate of flow of fluid in a number of streams
Inventor: MOORE RICHARD NEIL
IPC: G05D11/13
Filed: 1965-12-31
Abstract: 1,097,089. Controlling fluid-flow electrically. FOXBORO-YOXALL Ltd. Dec. 9, 1966 [Dec. 31, 1965], No.55453/65. Addition to 1, 045, 824. Heading G1N. In apparatus for controlling the rate of flow of each of a number of secondary fluids to be blended with a primary fluid in predetermined ratios, the flow rate of the primary fluid is controlled by a master pulse generator 3 (Fig. 1) the flow rate of each secondary fluid is measured by a meter producing a proportional secondary pulse train, and the ratio of the two frequencies is determined at 2 to control a valve in the flow line of the secondary fluid via a controller 4 whereby the flow ratios are maintained at the predetermined values. The frequency of the master pulse generator 3 is determined partly by a voltage device 5 and partly by a proportional-integral controller 6, fed through a reversing switch 7 with a bias signal from unit 8. Thus, when the system is switched on, controller 6 enables the frequency of oscillator 3 to be increased at a steady rate until it reaches maximum value, determined by the saturation output level of controller 6. Similarly, when switch 7 is reversed, the system is switched off at a steady rate. When the flow of a secondary fluid is too small, due to e.g. a blockage, the output signal from the appropriate ratio comparator 2 causes a transistor switching unit 9 to reverse switch 7 so that the frequency of master generator 3 is reduced until the output from the ratio comparator is again within limits. Switch 7 is then again reversed and the system limits about this condition.
Patent GB-1488370-A (GB)
Title: Process for producing polysiloxane oils
IPC: C08G77/08
Filed: 1974-12-23
Abstract: 1488370 Continuous preparation of polysiloxanes GENERAL ELECTRIC CO 23 Dec 1974 [14 Jan 1974] 55513/74 Heading C3T Polysiloxanes of viscosity 3-50,000 cp./ 25 C. are continuously prepared by passing a feed of siloxanes of formulµ (R 2 SiO) x , (R 3 Si) 2 O and/or R 3 SiO(R 2 SiO) z SiR 3 , where each R is a C 1-15  alkyl, alkenyl or cycloalkyl radical, x is 3-8, y is 1-10 and z is 1-10, into contact with a catalyst bed of sulphuric or hydrochloric acid-activated granular carbon black of acid: carbon ratio 1 : 10-40 by weight and of a US mesh size of 8 to 70, at 85-150 C. and 5-200 mm.Hg, water being removed and a product of the desired viscosity plus low-boiling siloxanes being obtained, which may be passed to a distillation column at 250-300 C. and 5-30 mm.Hg to obtain the pure desired product. The feed may previously be heated to 85-150 C. In a variant process the feed, which may contain 0À01-10 wt. per cent of water, is passed to a catalyst bed exactly as above, to give a product having less than 200 p.p.m. of water, and this product is passed to a second, similar, bed at 85-150 C. and at least 1 atmosphere pressure, whence is obtained a product which may be passed through a bed of pure carbon black to reduce the acid content below 5 p.p.m., then stripped in a distillation column as before. Preferably the catalyst beds are in columns and the catalyst amounts to 10-200 wt. per cent of the resident siloxane in the first of two columns, and to 40-200 wt. per cent in the second or the only column. Preferred residence times are 10 mins. to 4 hours (one column) or 5 hours and 2 hours (2 columns). In Example 1 (Me 2 SiO) 4  containing 4% of Me 3 SiOSiMe 3  and 0À1 per cent H 2 O is preheated to 125 C. and passed over H 2 SO 4 - activated carbon black of C : acid ratio 25 : 1, and 20-50 US mesh size, at 125 C. and 100 mm.Hg, with a residence time of 1À5 hours; the product is stripped at 250 C. and 5 mm. Hg to give a polysiloxane of 90 cp./25 C. In Example 2 a mixture of (MeViSiO) 4  and containing 2% of Me 3 SiOSiMe 3  and and 2% of water is preheated to 150 C., then passed over H 2 SO 4 -treated C black of acid : carbon ratio 1 : 20 and US mesh size 20-50 at 150 C. and 50 mm.Hg with a residence time of 30 mins.; the product is passed into a second column of similar catalyst but of acid : carbon ratio 1 : 30 at 95 C. and 1 atmosphre for 1 hour residence; this product is passed over pure C black and stripped at 280 C./10 mm.Hg to give a final product of 450 cp./25 C.
Patent GB-1212708-A (GB)
Title: Fungicidal and fungistatic preparations
IPC: C07C271/20
Filed: 1967-12-11
Abstract: 1,212,708. Fungicidal seed dressings. SCHERING A.G. 11 Dec., 1967 [17 Dec., 1966], No. 56127/67. Heading A2Q. [Also in Divisions A5 and C2] Seeds are fungicidally treated with a compound_of the general formula wherein R represents an aliphatic hydrocarbon group, X represents an oxygen or sulphur atom, and n represents an integer within the range of from 1 to 5. The compound may be in admixture with (a) a liquid carrier together with a wetting, emulsifying, or dispersing agent or an adhesive, or (b) a solid carrier or mixture of liquid and solid carriers. Suitable carriers are water, xylene, chlorobenzene, cyclohexanol, cyclohexanone, dioxan, aceto nitrile, ethyl acetate, dimethyl formamide, dimethyl sulphoxide, lime, kaolin, chalk, talcum, attaclay, and silicic acid. Suitable surfactants are salts of ligninsulphonic acid and alkylated benzenesulphonic acids, sulphonated acid amides and their salts, polyethoxylated amines, and alcohols. A dyestuff, such as New Fuchsine, may be added.
Patent GB-1455249-A (GB)
Title: Disposable hypodermic syringes
IPC: A61M5/28
Filed: 1972-12-05
Abstract: 1455249 Syringes GILLETTE INDUSTRIES Ltd 4 Dec 1973 [5 Dec 1972] 56132/72 Heading A5R A pre-filled disposable hypodermic syringe includes a valve member 5 located at the forward end of the barrel 1, which seals off the contents of the syringe from the barrel outlet 3, the valve member comprising a resilient plate 6, the periphery of which seals against the inner wall of the barrel, and a skirt 7 spacing plate 6 from the end wall 2, whereby in response to pressure transmitted when the piston (not shown) moves the plate 6 dishes forwardly to permit liquid to pass. The outside of the skirt 7 may have a circumferential flange 8 engaging the inner wall of barrel 1. In the embodiment illustrated in Figs. 1a and 2a the skirt 7 is provided with apertures 9, liquid pressure causing the plate 6 to dish forward (Fig. 2a), so that liquid may pass through the apertures 9 to reach the needle 4. In the embodiment illustrated in Figs. 1b and 2b the apertures 9 are replaced by notches 11; corresponding notches 10 are then required in the flange 8. The plate 6 and skirt 7 may be formed as a single moulding in rubber or other resilient material.
Patent GB-1204566-A (GB)
Title: Improvements in and relating to cartons
IPC: B65D5/24
Filed: 1968-11-27
Abstract: 1,204,566. Cartons. AKERLUND & RAUSING A.B. 27 Nov., 1968 [29 April, 1968], No. 56332/68. Heading B8P. A tray-like carton made from a plastics coated blank by tucking or pleating comprises at least one corner, the tuck or pleat at the corner being so folded that part thereof externally of the corner forms a corner supporting rib. The edges of the carton project as a flange extending outwardly fully round the carton. In the construction shown the corner forming portion of the blank comprises two equal triangular panels and a smaller triangular panel 6, each panel being provided with a ffange part. The two equal triangular panels are folded and the major portion of the fin produced thereby abuts externally (Fig. 3, not shown) or internally against one of the carton walls whereas the minor portion of the fin together with the smaller triangular panel forms the supporting rib. An eight-sided carton is also disclosed (Figs. 4, 5, not shown) having the above form of corner.
Patent GB-1155519-A (GB)
Title: Electromechanical Transducer
Inventor: GREENWOOD JOHN CHRISTOPHER
IPC: H04R17/00
Filed: 1967-12-15
Abstract: 1,155,519. Electromechanical transducers. STANDARD TELEPHONES & CABLES Ltd. 15 Dec., 1967, No. 56993/67. Heading H4J. A piezo-electric or piezo-resistive element is mounted on, or in, a flexible strip which is secured at its ends in such a way as to produce a compressive force along the length of the strip. The strip is coupled to a diaphragm or stylus so that displacement thereof cause buckling of the strip. The compressive force in the strip is said to reduce the energy required to operate the transducer. Fig. 1 shows an arrangement in which a diaphragm 1 is coupled to a strip 6 by a pin 4 of aluminium or titanium. Strip 6 is of steel, alloy or glass, and carries a piezo resistive element 7 of p-type silicon. The mounting of the strip 6 is such that the strip is under compression as indicated by the arrows C. In practice the diaphragm 1 may be mounted in an aperture on one side of a frame and the strip secured to the other side of the same frame and the pin may be replaced by a pip formed at the apex of the diaphragm. More than one element may be used, mounted, as shown in Fig. 3, to be positively and negatively curved and connected in a bridge circuit. In this arrangement the coupling member is formed as a bridge 14 which tends to amplify the displacement applied to the element.
Patent GB-1203472-A (GB)
Title: Apparatus for delivering metered quantities of powdered material
Inventor: JACKSON ALBERT EDWARD
IPC: B22F7/04
Filed: 1967-12-15
Abstract: 1,203,472. Dispensing metered quantities. JOHN SUMMERS & SONS Ltd. 3 Dec., 1968 [15 Dec., 1967], No. 57098/67. Heading B8N. [Also in Division C7] Apparatus for delivering metered quantities of powdered material e.g. aluminium, nickel or chromium powders on to a moving steel strip for subsequent compaction and sintering thereon comprises a rotor including two perforated metal sheets 29, 31 defining a space therebetween which is filled by two nylon sleeves 33, 34 with a porous filling material 35 therebetween. The filling material may be sand or a felt lining arranged in a helix. Fluid e.g. air or other gas is introduced into a chamber 52 via conduits 44, 53 and 54. The chamber is defined by sealing members 51 mounted in a block 48 which is urged towards the inner shell by springs 50. In use powder in hopper 36 passes into perforations in the outer shell and when those perforations are adjacent the chamber 52 fluid passing through the shells, sleeves (which may be porous or perforated) and the porous filling dispenses the powder on to the steel strip 10. To assist in the dispensing a screen 57 is electrostatically charged with a negative or positive potential of at least kV., and a second screen 56 is electrostatically isolated but during operation has a potential induced on it. The rotor and rollers supporting the steel sheet are earthed.
Patent GB-1449837-A (GB)
Title: Process for producing an alf3-containing additive
IPC: C25C3/18
Filed: 1973-12-11
Abstract: 1449837 Aluminium trifluoride/aluminium oxide mixture ELKEM-SPIGERVERKET AS 11 Dec 1973 [12 Dec 1972] 57339/73 Heading C1A A process for producing an AlF 3 -containing additive suitable for use in melt electrolytic production of aluminium comprises agglomerating a mixture comprising finely divided fluorspar and silica dust which has been precipitated from the smoke from a metallurgical process for the production of metallic silicon or a silicon-rich alloy, treating the thus-formed agglomerates with a gas/steam mixture at a temperature above 1000 C., and reacting the liberated HF gas with Al 2 O 3  to form a mixture of AlF 3  and Al 2 O 3  suitable for use as an additive in melt electrolytic production of aluminium. The agglomerate is preferably of a size suitable for use in a fluidized bed.
Patent GB-1286294-A (GB)
Title: Improvements in or relating to pipe couplings
Inventor: ELLIS BERNARD ROBERT
IPC: F16L51/02
Filed: 1969-11-26
Abstract: 1286294 Expansion pipe joints BROCKING- TON & SCOTT Ltd 17 Nov 1970 [26 Nov 1969] 57746/69 Heading F2G A tubular bellows connecting pipe ends 13, 14, liable to relative axial movement, comprises a corrugated section 10 and end sections 11, 12, clamped by tightenable bands 19 around the respective pipe ends, the end sections being shaped to provide inwardly-facing annular grooves 15 in which sealing rings 16 are located. As shown, the free end of section 11 is flared, to retain the associated band 19, and pipe end 13 is formed with an external annular groove 20.
Patent GB-1148028-A (GB)
Title: Improvements in pulverising mills
IPC: B02C13/18
Filed: 1967-12-22
Abstract: 1,148,028. Impact pulverizers. TERMOELEKTRO-FABRIKA KOTLOVA. 22 Dec., 1967 [27 Dec., 1966], No. 58291/67. Heading B2A. A ventilating pulverizing mill for coal and other materials comprises a cylindrical housing 4 having disposed therein a crushing rotor 2, 3 to which an inlet shaft 1 leads, and a distributor 5 for receiving the pulverised material. A choke plate 7 may be provided between the housing and the distributor. The distributor is provided with a number of outlets (6) Fig. 2 (not shown) corresponding to the number of furnace burners to be supplied. In a modification, the crushing rotor rotates about a horizontal axis.
Patent GB-1261138-A (GB)
Title: Aziridinomethyl phenolic compounds
Inventor: UELZMANN HEINZ
IPC: C07D203/10
Filed: 1969-12-12
Abstract: 1,261,138. Polymers from aziridinomethylphenolic compounds; curing epoxy resins. GENERAL TIRE & RUBBER CO. 12 Dec., 1969, No. 60784/69. Headings C3B and C3R. [Also in Divisions C2 and D1] Polymers are formed by heating aziridinomethyl phenolic compounds of formula where R is an aromatic, including heteroaromatic, radical carrying at least one phenolic hydroxy group, R 1  to R 4  are H or C 1-20  monovalent hydrocarbyl, and n is 1-3. The above compounds can also be reacted with epoxy resins to form adhesives.
Patent GB-1284470-A (GB)
Title: Improvements in locks for vehicle doors
IPC: E05B65/28
Filed: 1969-12-18
Abstract: 1284470 Anti-burst vehicle lock REGIE NATIONALE DES USINES RENAULT and AUTOMOBILES PEUGEOT 18 Dec 1969 [24 Dec 1968] 61848/69 Heading E2A An anti-burst vehicle lock comprises a conventional lock 2 having a lock bolt and keeper on a door 1 provided with an angled retaining plate 6 bearing against the mounting plate 4 of the door lock unit at 7 and a resilient pad 8 which engages the underside of the keeper (14) in the fastened position the keeper (14) having a retaining heel which lies at a lower level than the upper vertical edge of the angled retaining plate 6.
Patent GB-773649-A (GB)
IPC: B01D5/00
Abstract: 773,649. Surface condensers; feedwater supply systems. SULZER FRERES, SOC. ANON. Oct. 3, 1955 [Oct. 6, 1954], No. 28150/55. Classes 64(3) and 123(2) A method for preventing an increase of the salts concentration in the working medium of a steam power plant arising from a leak in the condenser, comprises separately collecting condensate at points where there is greatest danger of a leak, e.g. adjacent the condenser tube headers, passing this separately collected condensate through a salts removing plant and then returning it to the rest of the condensate. The drawing shows a condenser and ancillary apparatus for carrying out the method. The condenser 1 :is positioned to provide adjacent the condenser tube header plates 4, separate condensate collecting chambers 9, 10 from which condensate is discharged by a pump 15 through pipes 12, 13 respectively to a salts removing plant 16 and thence rejoins the remainder of the condensate collected in a central chamber 11 and discharged therefrom by a pump 18. The central collecting chamber may itself be subdivided into smaller chambers each having its own discharge pipe provided with a valve whereby it may also be connected, if necessary, to the salts removing plant.
Patent GB-2007880-A (GB)
Title: Energy conserving automatic light output system
IPC: G05D25/02
Filed: 1978-06-28
Abstract: An energy conserving lighting system is provided wherein a plurality of fluorescent lamps are powered by a poorly regulated voltage supply which provides a decreasing supply voltage with increasing arc current so as to generally match the volt-ampere characteristics of the lamps. A transistor ballast and control circuit connected in the arc current path controls the arc current and hence the light output in accordance with the total ambient light, i.e., the light produced by the lamps together with whatever further light is produced by other sources such as daylight. In another embodiment, a transistor ballast is utilized in combination with an inductive ballast. The transistor ballast provides current control over a wide dynamic range up to a design current maximum at which maximum the transistor is saturated and the inductive ballast takes over the current limiting function. <IMAGE>
Patent GB-2004784-A (GB)
Title: Process for the centrifugal electromagnetic continuous casting of molten metals
IPC: B22D11/115
Filed: 1978-09-21
Abstract: In a process for the continuous casting of molten metals, in which the molten metal is poured into the mould in a vertical jet, by way of a tube 17, the molten metal in the mould is rotated by a rotating magnetic field, and the tube 17 terminates above the metal bath surface 16, whilst the lower portion of the jet of metal which is not enclosed in said sleeve, and the bath surface 16, are covered by a layer of a liquefied gas, e.g. inert gas such as Ar or He, or N2, which does not oxidise the metal to be cast. <IMAGE>
Patent GB-2005234-A (GB)
Title: Improvements in or relating to rotary airlocks
IPC: B65G53/46
Filed: 1978-09-27
Abstract: The Specification describes a rotary airlock for controlling the flow of particulate or powdered material wherein either the rotor or the stator is chamfered or tapered to reduce the area of contact between the rotor and stator, thereby reducing the wear occurring on the faces of these parts due to material being trapped therebetween. In one embodiment, Fig. 1, the hub 10 of the rotor is chamfered at 36. In alternative embodiments, Figs. 4 and 5, the rotor blade supports 18 have tapered ends 33. <IMAGE>
Patent GB-2004823-A (GB)
Title: Spray inhibiting means for use on a road vehicle
IPC: B62D25/18
Filed: 1978-10-09
Abstract: In vehicle spray-inhibiting means for a screen 15 is mounted rearwardly of and adjacent to a vehicle tyre so that in wet conditions the screen will intercept spray and water thrown rearwardly by the tyre, additional means (24) collect such water intercepted by the screen, and means (25) discharge the collected water from the vehicle at such a velocity relative to the vehicle velocity that water deposited by the discharging means (25) on to the road surface will have no or only a low velocity in a horizontal direction relative to the road surface itself. The discharging means include pumps, compressors or "air- ram" effects. The screen has elongate passages formed between spaced parallel baffles. <IMAGE>
Patent GB-2008359-A (GB)
Title: Improvements in or relating to audio teleconferencing
IPC: H04M3/56
Filed: 1978-10-17
Abstract: An electro-acoustic terminal unit for use in an audio teleconferencing system comprises a loudspeaker 10 and one or more microphones 12, 14 each having a sensitivity which is directionally dependent and exhibits at least one null or substantially null position. The loudspeaker 10 and microphones 12, 14 are rigidly mounted on a boom 11 and the microphones 12, 14 are so located and orientated relative to the loudspeaker 10 that the null position is directed towards the loudspeaker 10. <IMAGE>
Patent GB-2007788-A (GB)
Title: Hydraulic braking systems for tractor-trailer combinations
IPC: B60T13/14
Filed: 1978-11-08
Abstract: A tractor-trailer hydraulic braking system includes an expansion tank in the return line on the trailer. This prevents an excessive build up of pressure in the trailer circuit due to the leak down of high pressure fluid from the trailer service brake accumulator over a period following de-coupling of the trailer. Fluid leaking into the return lines and expansion tank is returned to the accumulator by the system pump when the trailer is recoupled to the tractor. The invention is applicable to fluid operated, or to spring-applied fluid pressure- released trailer brakes.
Patent GB-2042955-A (GB)
Title: Gas Pressure Shaping a Hollow Body
IPC: B21D26/02
Filed: 1979-03-02
Abstract: A method for shaping a preformed hollow body, particularly a tube of non-circular cross section, comprises applying gas under pressure to the inner (outer) surface of the body until the body or a portion thereof attains a shape defined by a die supported externally (internally) of the body. Apparatus may comprise a die (11) supported externally of (in) the body (10) and a housing (12) which contains pressurised gas or is pressurisable with gas. The housing (12) is located in (externally of) the body (10) has an outer (inner) surface or surface portion which abuts or is disposed in close proximity to the inner (outer) wall of the body (10) and one or more openings (34) for communicating pressurised gas in the housing with the inner (outer) wall of the body. The apparatus also includes seals (35, 36) whereby when pressurised gas is applied to the inner (outer) wall of the body through the openings, the body is caused to adopt a shape defined by the die. <IMAGE>
Patent GB-2044332-A (GB)
Title: Mine-roof Supports
IPC: E21D23/04
Filed: 1979-03-09
Abstract: Machinery, such as conveyor drive gear (12), is protected by the canopy (14) of a mine-roof support (10). Acting between the machinery (12) and the canopy (14) is a staker prop (22) at a forward position allowing through access behind it and in front of the main props (18) of the support). Engagement of the prop (22) with the canopy is by a device (26) which allows movement relative to the canopy even under load. The device (26) comprises endless roller chain or a slide. The mine-roof support has a rear shield (44) coupled to its base (16) by two parallel equal length links (50, 52) and a ram (62) which absorbs forces tending to tilt the canopy about prop 18. An advancing ram may be connected between the support (10) and the conveyor drive gear (12). <IMAGE>