baber/WOPTO huggingface dataset:
Patent GB-1329659-A (GB)
Title: Cargo handling equipment
IPC: B64D1/22
Filed: 1971-12-22
Abstract: 1329659 Spreader frames UNITED AIRCRAFT CORP 22 Dec 1971 [30 March 1971] 59577/71 Heading B8H [Also in Divisions E2 and F3] Cargo handling equipment includes a spreader bar 12 having a longitudinal axis, and a transverse axis at each of its opposite ends and adapted to have its opposite ends connected to a load (Fig. 1, not shown) the ends of the spreader bar also being connected to respective releasable cargo hooks (14, Fig. 1, not shown), 16 characterized in that a respective striker means 90 is mounted on the spreader bar at each of its ends so as to tilt with the spreader bar about the corresponding transverse axis and that operating means 100 are mounted on each of the cargo hooks so as to be actuated by the corresponding striker means when the rotation of the spreader bar about the corresponding transverse axis exceeds a predetermined limit. As shown each cargo hook is of a known kind which includes a body portion 64 which has a load beam 66 pivotally connected thereto and movable between an operable position and a releasing position about a pivot axis 68, the load beam being retained in the operable position by a link 108 which has a recess engaging an end portion of the beam, the link 108 being held in its beam engaging position by toggle links 104, 106; the toggle link 104 is rigidly connected to a shaft 102 which carries the operating means 100 which is in the form of a cam, thus rotating the cam rotates the shaft 102 which moves the toggle links over a dead centre position and moves the link 108 out of engagement with the beam so that the beam can pivot to its releasing position. A solenoid (not shown) is also provided to release the beam. The striker means 90 includes a roller 96 and engages the cam to pivot it for releasing the beam when the spreader bar has tilted sufficiently. The hooks are normally carried by respective helicopters and the object of the invention is to release the load from both helicopters if any difficulties arise such as one helicopter being unable to support the load or the beam breaking. In a first instance the beam first tilts one way and releases one hook and this automatically causes the beam to tilt the opposite way and release the second hook; in the second instance the middle of the beam will tilt downwardly causing automatic release of both hooks and dropping of the load.
Patent GB-625920-A (GB)
Abstract: 625,920. Sootblowers. LUMB, C. F., and SPEARS, F. G. W. Oct. 21, 1946, No. 31189. Addition to 572,025. [Class 99(ii)] The means for reciprocating the blower tube and cleaning fluid supply valve of a retractable type sootblower according to the parent Specification is applied to the reciprocation of the valve only, in a sootblower in which the blower tube is mounted for rotation only. The lift valve a is actuated by a screwed spindle 16, being given axial or rotary movements alternatively according to whether the nut 17 is secured to the casing 1 or is free to rotate, lugs b on the valve engaging slots c in the blower tube d. The blower tube has two parts d, e of which the former lies wholly within the valve chest 6, and has a sealing ring m and thrust bearing o. The screwed spindle is actuated by worm gearing v, s and a hollow hub 38 to which it is keyed, the nut being held stationary by a ball 42 engaging a recess 43 in the casing until the ball registers with a recess 45 in the hub. Connection between the hub and nut is then maintained by the ball and by a pin 33 on the hub engaging a lug 17b on the nut. The blower tube is rotated until the nut engages a stop 51.
Patent GB-648279-A (GB)
Abstract: 648,279. Enamelling. FRASER, R. P., and CIANCHI, A. L. Oct. 11, 1947, No. 27347. [Class 56] A vitreous composition selected as having a melting point within the range of 400- 750‹C., a coefficient of thermal expansion of the same order as that of aluminium, and a chemical constitution such as to unite with aluminium or its oxide, e.g. as described in Specification 642,104, is applied to such metal or an alloy thereof by preheating the metal to 350-575‹C. (preferably 550-575‹C.), and directing the vitreous particles, while being heated, on to the surface thereof at a velocity sufficiently low to ensure that they are adequately heated, the heating means being limited to avoid overheating of the vitreous composition. Apparatus is described wherein kerosene, diesel oil &c. is projected through a whirling atomizer into the throat of a venturi through which air is blown and within which is located an annular mouthpiece or group of mouthpieces delivering compressed air charged with glass powder; the venturi is located in a tubular casing open at the far end (where the articles are coated) and supplied with compressed air at its rear end. The air fed to the annular mouthpieces may be charged with glass powder by passage from a compressor through containers in which it agitates the glass and carries it off past a filter.
Patent GB-2034094-A (GB)
Title: A semi-conductor display device
IPC: G09G3/32
Filed: 1978-08-08
Abstract: For the reproduction of TV pictures without a C.R.T., a parallel line array of U.V. diodes with medium persistence fluorescent phosphor has associated with each diode four transistors including one introducing a delay, possibly replaced by a piezo- electric delay line. For colour reproduction the number of diodes is trebled. A radar signal may be displayed on an array of diodes in concentric circles.The diodes may be etched on a hand-sized wafer of silicon. <IMAGE>
Patent GB-2036966-A (GB)
Title: Improvements in surface temperature measurement devices
IPC: G01K1/14
Filed: 1978-10-16
Abstract: A portable hand-held surface- temperature measuring device has a contact band 21, conveniently of stainless steel, entrained around guides 28 in a housing 15 to prevent an exposed surface for contacting a flat or curved surface of an article, which may be movable or stationary, to measure its temperature. The band 21 is connected to a tension spring 29 which assists the band 21 to conform to the shape of the temperature surface. An additional band 31 or loop of stainless steel strip is retained in the housing 15 and tends to urge the exposed surface of the contact band 21 into good thermal contact with the temperature surface. The contact band 21 supports a thermocouple 27. A film of paint or the like between the bands 21, 31 prevents direct electrical conduction between the bands 21, 31. <IMAGE>
Patent GB-2012873-A (GB)
Title: Improvements Relating to Spring Brake Actuators
IPC: B60T17/08
Filed: 1978-11-08
Abstract: A spring applied fluid pressure released brake actuator uses one or more diaphragm-type operating springs 14, the or each spring being made up of an annular array of segments with each segment clamped at its outer end 18 and located at its inner end 24 in an annular groove 26 on a hut 24 of the brake release piston 12. In use the segments are elastically deformed and adopt a bowed formation and the axial force applied to the piston 12 is substantially constant throughout its stroke. Because each diaphragm spring is made up of many segments the risk of total spring failure is greatly reduced. Moreover each spring is simple to construct and eliminates the side loads normally generated by coil springs. <IMAGE>
Patent GB-2013095-A (GB)
Title: Dissolving gas in a liquid
IPC: C02F3/26
Filed: 1978-11-21
Abstract: A sparingly soluble gas, typically oxygen, is dissolved in a liquid, typically, waste water by an apparatus comprising a main vessel, a reservoir 10 above the main vessel 2, a lift pump 6 for transferring liquid from the main vessel 2 to the reservoir 10, a siphon 12 for transferring liquid from the reservoir 10 back to the main vessel 2, a pump 32 for extracting gas from liquid being siphoned, and a pipe 28 for introducing the gas into the liquid as it flows down leg 16 of the siphon 12. Preferably, the pipe 28, terminates in a constricted region 20 of the leg 16, the constricted region creating turbulent flow. The constricted region 20 is immediately above chambers 22 and 24 which in operation, reduce the velocity of the liquid and provide a prolonged residence time for bubbles of gas in the liquid. <IMAGE>
Patent GB-2043417-A (GB)
Title: A watering head for drip irrigation
IPC: A01G25/02
Filed: 1978-12-12
Abstract: A watering head for drip irrigation comprises an elongated housing 1, in which housing there is arranged a labyrinth-like extending water channel 7. A core member 11 is rotatably inserted into that housing 1. This core member 11 comprises a projection 13 which engages into said water channel 7 at at least one point such that the cross-sectional area of the water channel 7 can be adjusted by means of rotating said core member 11. Accordingly, the through flow of water flowing through the dripper head can be exactly controlled. <IMAGE>
Patent GB-2039136-A (GB)
Title: Cloverleaf slow-wave structures
IPC: H01J23/24
Filed: 1978-12-27
Abstract: A travelling wave tube includes a cloverleaf slow wave structure in which the noses 14 to 17 of each section of the structure are hollow and open to the cavities of an adjacent section, so that the volumes of the last mentioned cavities are relatively increased so as to increase the R/Q of the cavities and provide a higher coupling impedance and gain for the slow wave structure. <IMAGE>
Patent GB-2015191-A (GB)
Title: Radiographic Cassette and Film, in Particular for Mammographic Apparatus
IPC: G03B42/04
Filed: 1979-02-08
Abstract: A radiographic cassette 1 for mammography comprises top and bottom covers 3 and 2, intensifying screens 10 and 11 and X-ray film 12 with at least one of the sides of the members having a portion (8, 9, 13, 14, 15) of curvilinear shape for conforming to the shape of the thorax in the vicinity of which is located the breast to be radiographed. The cassette maybe placed on table 24 and the upper part of the breast pressed against plate 23, the table and plate having suitably curved sides 26 and 27 and being slidably mounted on slide 22. The output of X- ray source 20 is controlled by member 21 which also has a curved side 28. <IMAGE>
Patent GB-2015335-A (GB)
Title: Wave-producers
IPC: G01M10/00
Filed: 1979-02-12
Abstract: Apparatus for making waves in a liquid in a test tank 14 by the back and forth movement in the liquid of a displacer 10 comprises a flexible seal 28 between each side wall of the displacer and the respective wall of the tank, which seal by a rolling action allows relative movement between the wall and the displacer and prevents, in use, movement of liquid past the side edges of the displacer. <IMAGE>
Patent GB-2019392-A (GB)
Title: Aryl- and heterocyclic thioethers which are development inhibitor precursors, and photographic elements containing them
IPC: C07D257/04
Filed: 1979-04-03
Abstract: Development inhibitor precursors for releasing during development compounds which inhibit undesired development comprise novel precursors of the formula:   <IMAGE> where Z completes an optionally substituted phenyl or (optionally fused) heterocyclic (e.g. tetrazole or phenyl tetrazole) ring, R is cyano or (substituted) carbamoyl or -CO-(substituted) aryl, and n is 1-4 (e.g. 1); which may be obtained by a Michael addition reaction between an appropriate aryl or heterocyclic mercaptan and an appropriately substituted olefin. The precursor splits at* in alkaline processing solution, aided by increased temperature, to liberate the Z-S precursor. 8 specific compounds are described. Photographic elements of the invention include the novel precursor associated with a silver halide emulsion layer in a position where the released inhibitor can inhibit development. In colour diffusion transfer material the precursor is preferably in a neutralising cover sheet.
Patent GB-2020014-A (GB)
Title: Bile acid assay
IPC: G01N33/92
Filed: 1979-04-05
Abstract: Bile acids, e.g. cholic acid, sulfolithocholic acid, or conjugates thereof in unextracted serum samples are assayed by:     (a) providing an antiserum specific to the acid being determined, (b) mixing the unextracted serum sample with the antiserum and the same bile acid tagged with a labelling agent, (c) incubating the mixture from (b) to allow the bile acid and labelled bile acid to bind with antibodies in the antiserum,   (d) separating the antibody-bound reactants from the unbound, (e) measuring the labelled bound fraction from (d) to find the quantity of bile acid in the sample by comparison with standards, wherein the assay is carried out in the presence of a binding inhibitor, e.g. 8-anilino-1-naphthalene-sulfonic acid, sodium barbital or salicylate, to inhibit retention of bile acids by binding proteins present in the serum sample.
Patent GB-2021555-A (GB)
Title: Hermetic seals
IPC: C04B37/00
Filed: 1979-05-21
Abstract: A sealing composition comprises a metal selected from aluminium, antimony and zirconium in powder form, a glass frit having a softening point of less than 750 DEG C and a carrier. A method of forming a seal which comprises providing such a composition, the nature and amounts of the components being such that the resulting seal will exhibit a coefficient(s) of thermal expansion compatible with that of the material(s) with which it is in contact and will have a use temperature of up to 1000 DEG C (for Sb or Zr) or more (for Al), and the carrier being present in such an amount as to give the required consistency, applying the composition in the desired position and firing to form the seal, is also disclosed. The seals are suitable for sealing materials having dissimilar thermal expansions and are particularly suitable for bonding ceramic to ceramic.
Patent GB-2022343-A (GB)
Title: Apparatus for controlling the light output of a discharge lamp
Inventor: GOFFAUX YVES
IPC: H05B/
Filed: 1979-05-29
Abstract: An apparatus for controlling the light output of a discharge lamp 1 comprises an inductance coil 2 provided with two taps 13 and 14, a switch 11 and a resistor 24 connected to the tap 13. The two taps 13 and 14 allow two different impedances to be connected in series with the lamp 1 and hence enable two levels of light output. The resistor allows a small current to flow through the lamp if the switch 11 is positioned between the taps 13 and 14 so that the discharge of the lamp can be maintained with the minimum power consumption. <IMAGE>
Patent GB-2029386-A (GB)
Title: Removal of H2S from gases and liquid hydrocarbons
IPC: B01D53/14
Filed: 1979-06-28
Abstract: The material containing hydrogen sulphide is washed with an aqueous alkaline solution containing one or more compounds having the general formula:   <IMAGE>  where  A is a C1-C4 straight or branched chain alkylene radical,  B is a -SO3M, -CO2M, -PO3HM or -PO3M2 grouping, where  M is hydrogen, or a cation giving a water-soluble derivative, R is hydrogen, a cation giving a water soluble derivative, or C1-C4 straight or branched alkyl,  R1 is hydrogen, methyl or -COOH  and  m is 0 or 1 the hydrogen sulphide being oxidised and sulphur liberated; and the reduced anthraquinone sulphonamide being oxidised by contact with free oxygen or a gas containing it. Optionally there is present in addition a compound of a metal having at least two valency states, and if necessary a chelating or sequestering agent for retaining such metal compounds in solution. <IMAGE>
Patent GB-2056015-A (GB)
Title: Laminated Leaf Spring with Spaces Between the Leaves
IPC: F16F1/18
Filed: 1979-08-14
Abstract: A laminated leaf spring has central and end seat portions 6,7 formed integrally on at least one face 5 of a least one of a pair of adjacent spring leaves 1,2,3 so creating spaces 10, between the remaining portions 8, to reduce wear, without the need for spacers or liners between the leaves, and thus reducing the number of parts and manufacturing steps. The invention is applicable to leaf springs with two or more leaves, with or without loops 4 at the ends of one leaf, and an intermediate leaf may have seat portions 6,7 on both faces 5,9. The remaining portions 8 between the central and end seat portions are tapered, with the thickness decreasing progressively from the central portion to the end between the remaining portions 8, to portions. <IMAGE>
Patent GB-2034382-A (GB)
Title: Window frames
IPC: E06B1/60
Filed: 1979-08-15
Abstract: Alternatively the frame is wholly of g.r.c. A window frame 10 moulded in (g.r.c.), has an auxiliary frame 16 pivoted to form a movable light, a sill member 20 and a head member 26, also moulded in g.r.c. The g.r.c. side members of the frame 10 provide sufficient support to enable the head member 26 to bear the weight of building elements 30 above the aperture in which the frame is fitted without the need for a lintel extending into and interfering with the building elements at the side of the aperture, thus making construction easier. Window frame members comprise an outer skin 56 of plastics filled with a settable composition. For example, a frame is moulded from glass fibre reinforced cement (g.r.c.) in a polyvinyl chloride skin, which both acts as a mould and gives the frame a good external appearance. <IMAGE>
Patent GB-2042031-A (GB)
Title: Improvements in or relating to apparatus for forming subterranean concrete piles
IPC: E02D5/36
Filed: 1979-02-13
Abstract: An auger for forming a hole and filling the hole with concrete comprises an auger having a stem 22 defining a first axial passage 23 for the flow of concrete and a second axial passage 30, 31, 41, 48, 51, 53, 55, for the flow of compressed air which terminates in a nozzle 56, where the flows of concrete and compressed air are combined, to eject concrete through a discharge passage 60. <IMAGE>
Patent GB-2037462-A (GB)
Title: Stabilised switched mode power supply
IPC: H02M3/28
Filed: 1979-12-05
Abstract: A switched mode power supply circuit of the forward converter type which has a plurality of output circuits is provided with a control circuit 28, for stabilising an electrical quantity, such as voltage, at the output terminals 32, 33 of at least one of the output circuits. The relevant secondary winding 2 of the converter transformer feeds a flywheel circuit 14, 20 via a rectifier 13 and a saturable choke 27 which is provided with a control winding 28. During each "off" period of the converter the induced voltage across the control winding is clamped using feedback 31 at a value proportional to the output quantity to be stabilised thereby controlling the demagnetization of the core material of the choke which occurs during each "off" period, and hence the magnetization which it has when the next "on" period starts. In an alternative arrangement a steady current determined by the value of the quantity to be stabilised is passed through the saturable choke control winding. <IMAGE>
Patent GB-2041081-A (GB)
Title: Heater for gaseous fluid
IPC: F02M31/04
Filed: 1980-01-11
Abstract: A heater for an oxygen containing gaseous fluid comprises a combustion chamber 20, and an ultrasonic atomizer 25 having an end portion defining a surface located within the combustion chamber. The atomizer includes a velocity transformer 27 which has a passage through which fuel can flow to said surface where the fuel is atomized. The fuel is ignited in the combustion chamber by a spark plug 33. Fuel flow is controlled by a unit 52 in response to inlet temperature detected by sensor 53 and exhaust gas temperature detected by sensor 54, the unit 52 varying the position of a valve member 48 by means of an actuator 40 e.g. a torque motor. <IMAGE>
Patent GB-2037333-A (GB)
Title: Precess and device for inserting the weft by means of a fluid flow in a loom
IPC: D03D47/30
Filed: 1979-06-12
Abstract: This device mounted in a loom, comprises a thread guide conduit (7) consisting of upper lamellae (6) and lower lamellae (19). This conduit (7) is open at the comb side (2) so that the thrown weft thread may reach the comb (2). The path of the thread is limited at the lower side of the conduit (7) by other lamellae than at the upper side. The lamellae which form the lower enveloping surface, enter the warp in other locations than the lamellae which form the upper enveloping surface.
Patent GB-2050469-A (GB)
Title: Mineral-mining Cutter Drum
IPC: E21C35/187
Filed: 1980-04-08
Abstract: In a cutting drum for a mining machine, water is directed towards cutting tools in the form of a fine spray, to reduce the creation of dust in the operation of the machine. In order to simplify the mounting of water directing means, a housing (24) is used, which is provided with a part spherical surface which is abutted against an aperture (20) having a circular boundary which is smaller than said part spherical surface. In this manner, considerable angular movement between the housing and the aperture is permitted, allowing the housing to be moved to a desired position, prior to permanent securing of the housing to the cutting drum, along the line of the boundary. Preferably the housing is adapted to carry a releasable water jet nozzle (30). <IMAGE>
Patent GB-2053443-A (GB)
Title: Heating air in incandescent gas fires
IPC: F24C3/00
Filed: 1980-05-19
Abstract: A heating appliance comprises a solid fuel effect gas fire, a duct (9) for receiving hot products of combustion from the fire and a plurality of tubes (23) each of which has a portion within the duct (9) so that, in use, the tubes (23) and air flowing through the tubes are heated by the hot products of combustion. <IMAGE>
Patent GB-2056878-A (GB)
Title: Rolling mill for grinding purposes
IPC: B02C4/38
Filed: 1980-06-17
Abstract: A rolling mill for grinding purposes comprises at least one pair of rollers, with one roller of each pair being mounted in two fixed bearing members 6 and the other roller being mounted in two movable bearing members 7, of which associated fixed and movable bearing members rest against each other and are connected to each other by an engagement and disengagement mechanism and a device 27, 28 for adjusting the width of the grinding gap between the rollers. The connection by a cylinder 23 is such as to result in a system in which the forces resulting from the grinding operation and acting on the two rollers cancel one another out. In order to facilitate replacement of the rollers, each fixed bearing member is adjustably fixed to a side portion of the rolling mill which lies normal to the longitudinal axes of the rollers. This side portion 8 simultaneously serves as a wall of the grinding chamber and is mounted so as to be capable of being pulled away in the longitudinal direction of the rollers. <IMAGE>
Patent GB-2056884-A (GB)
Title: Coatings on textile machinery
IPC: D02G1/08
Filed: 1980-08-06
Abstract: An article for use in textile machinery in frictional contact with testiel fiber having a coating of hard ceramic platelets in a matrix. Preferably the particles are alumina and the matrix is nickel. The coating is preferably formed by electroless plating techniques where the ceramic platelets are suspended in the plating solution during deposition of the matrix metal.
Patent GB-2056981-A (GB)
Title: Benzodiazepines
IPC: A61P3/00
Filed: 1980-08-18
Abstract: Optically active and racemic 5- phenyl-1,3,4,5-tetrahydro-2H-1,4- benzodiazepin-2-one compounds of general formula (I> <IMAGE> in which the centres of asymmetry in the 3- and 5-positions have the same absolute configuration  [wherein R<1> represents a hydrogen or halogen atom or a trifluoromethyl or nitro group; R<2> represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms; R<3> represents a group selected from those groups conventionally attached to the -CH(NH2)-COOH group of the optically active or racemic  alpha - amino-acids; R<4> represents a hydrogen atom or a chlorocarbonyl or carbamoyl group;  and  X represents a hydrogen or halogen atom or a trifluoromethyl group; with the proviso that if in the racemic compounds R<4> represents a hydrogen atom then R<3> represents other than an alkyl group having 1 to 6 carbon atoms] and acid addition salts thereof show enzyme inducing activity.