baber/WOPTO huggingface dataset:
Patent GB-1043913-A (GB)
Title: Screw pumps and motors
IPC: B23F15/08
Filed: 1963-05-08
Abstract: 1,043,913. Meshing screw pumps and motors. IMO-INDUSTRI. A. B. May 8, 1963 [May 9, 1962], No. 18256/63. Heading F1F. In an intermeshing screw pump of the kind comprising a driven screw having convex threads and at least one idler screw having concave threads and a housing having intersecting cylindrical bores within which the screws rotate, to prevent the pumped liquid lubricating the bores from being wiped off the bores whilst the pump is running, the, or each bore 26, Fig. 3, containing an idler screw 20 has a longitudinally extending surface 30 deviating slightly outwardly from the bore 26, preferably tangentially, at the intersection with the driven screw bore 24, to form a wedge-shaped clearance between the idler and its bore to promote lubrication. The invention may also be applied to a motor. The Specification also describes a method of making the housing in which the bores are made undersize by machining or extruding and a broach of the correct configuration including the deviation is pulled upwardly through the bores.
Patent GB-821815-A (GB)
Title: Improvements in or relating to methods of and devices for working the surfaces of workpieces in stages
IPC: B24B17/02
Filed: 1958-06-09
Abstract: 821,815. Grinding and polishing. RAUCH, W., and SCHNIZLER,-A., [trading as METABOWERK CLOSS RAUCH & SCHNIZLER K.G. June 9, 1958 [June 15, 1957], No.. 18315/58. Class 60. [Also in Group XXX] A method of grinding or polishing the surfaces of workpieces 18, Figs 3 and 4, in stages, comprises conveying the workpieces, each on a truck 10, past a plurality of grinding or polishing machines, the trucks in addition to their advancing movement past the machines being lifted, lowered, or tilted so that the surface of the workpiece is abutted against the tools 19 of the machines. Each workpiece is mounted directly or through an intermediate member on a holder 17 on the upper part 10 of the truck. A bolt 8 at each end of the upper part cooperates with slotted vertical bars 6, 7 secured to an under part 5 of the truck which has rollers 3 running in guide rails 2 and is advanced by an endless belt or chain which extends past a plurality of polishing or grinding machines and is provided at one end of the machines with a drive device and at the other end with means for reversing the trucks. The upper part of the truck has a pair of axles 11, 12 of different lengths on which are wheels 13, 14, each engaging separate guide rails 15, 16. '  During advancement of the truck, the upper part is moved relative to the under part by the configuration of the rails 15, 16 so as to present the surface of the workpiece to the grinding or polishing wheel 19 ; the configuration of the rail may also determine the pressure exerted between the workpiece and tool. In another embodiment, a curved workpiece 20, Fig. 6, may be mounted in holders 24 secured to a spindle 23 carried in a member 21 and having a lever 25 which, during advancement of the truck along the rails 2, has a roller 26 cooperating with a guide 27 to pivot the workpiece so that its surface engages the tool 19 ; wheels 13 cooperate with guide rails 15 to tilt the member 21 about an axis parallel to the rails 2. In a further embodiment, the workpiece may be moved transversely to the direction of travel past the polishing or grinding machines by the engagement of rollers 34, Fig. 8, on the under part of the truck with guides 33 on a carriage 30 which has rollers 31 engaging transverse rails 29 and is resiliently held in a central position by springs. Movement of the carriage is transmitted by guide rails 15<SP>1</SP>, 16<SP>1</SP> mounted thereon to the wheels 13, 14 on the upper part of the truck which is connected to the under part by a rod 37 engaging a transverse slot 38, the under part being advanced by the conveying chain 35. The upper parts of the trucks may be interchangeable, and the workpiece and/or grinding or polishing wheel resiliently supported.
Patent GB-952107-A (GB)
Title: A deflector assembly for controlling and deflecting the exhaust gases from a jet engine
Inventor: DON MICHAEL HEINZE RUEEDIGER E
IPC: B64C29/00
Filed: 1961-05-19
Abstract: 952,107. Deflecting jet streams on aircraft. NORTHROP CORPORATION. May 19, 1961, No. 18436/61. Headings B7G and B7W. [Also in Division G3] An aircraft jet propulsion engine thrust deflector has vanes 23-26 pivotally mounted in members 27, Fig. 6, and rotated by screw-jacks 28, control cables 32 and electrical apparatus (see Division G3). During the initial range of the rotation from a forward thrust position, Fig. 3, to a vertical thrust position, Fig. 2, via a S.T.O.L. position. Fig. 4, not shown, the vane 23 rotates through a greater angle than vane 24, vane 24 through a greater angle than vane 25 &c. and vice versa during the remaining range. The vanes co-operate to define convergentdivergent nozzles, Fig. 3, in the first range and convergent nozzles in the remaining range. Each vane is streamlined with maximum thickness located forward of the mid-section. This differential rotation of the vanes and the angle that members 27 make with the longitudinal axis of the engine, maintain a constant throat area l for each nozzle. The vanes may be moved to a reverse thrust position, Fig. 5, not shown.
Patent GB-1401232-A (GB)
Title: Multiunit filters
IPC: D04H1/42
Filed: 1972-08-17
Abstract: 1401232 Connecting filter elements together PALL CORP 17 Aug 1972 [17 Sept 1971] 18468/74 Divided out of 1401231 Heading B1D Two or more tubular filter elements with plastics end caps are joined end to end by softening axially outer parts of the end caps, by applying solvent or by heating with a flame or radiant heat, and pressing the end caps together and allowing them to harden to form an integral unit. Softening is localised, being for example limited to headings 20, 21 so that inner parts of the end caps in which the ends of the filter medium are embedded remain hard. The process allows long filter element arrays to be built up using filter medium which can be made only in small sheets. The filter medium described comprises potassium polytitanate fibres (higher than dititanate) of less than 0.5 Á dia. and a length to diameter ratio of 5:1 to 300:1, applied to a supporting sheet on a paper-making machine to form a layer with a maximum pore diameter of 1.2 Á. The supporting sheet may comprise a coarser fibrous layer deposited on a reticulate substrate. Two sheets of the resulting laminate could be joined together with the fine layers innermost. The elements illustrated comprise pleated sheet filter medium enclosed between a grooved perforate polypropylene inner tube 14 and an outer tube of polypropylene netting 13, which can be shrunk into place. Polypropylene end caps are joined to tubes 13, 14 and to the filter medium. When forming the filter sheet into a tube, abutting edges can be joined by softening a resin binder in the fibrous layers or by applying adhesive, the adhesive including fibres similar to those of the layers. When joining elements together they can be located on a common mandrel or in a common cage until the end caps harden.
Patent GB-1109045-A (GB)
Title: Improved electro-magnetically operable valve
Inventor: SADLER PETER
IPC: F16K31/06
Filed: 1966-04-28
Abstract: 1,109,045. Valves. GENEVAC Ltd. 2 Dec., 1966 [28 April, 1966], No. 18611/66. Heading F2V. An electromagnetically operated valve comprises a closure disc 14 connected by stem 16 to the armature 16a of coil 19, the closure disc being biased towards its seat 13 by spring 20. To prevent pressure differentials across the disc, the latter has an orifice 22 which admits upstream pressure to the interior of a bellows 21. The disc includes a sealing ring 15 of resilient material.
Patent GB-120809-A (GB)
Title: An Improved Dry Kiln.
Inventor: HUNTER HARRY
IPC: F26B9/06
Filed: 1917-12-14
Abstract: 120,809. Hunter, H. Dec 14, 1917. Chambers.-A drying kiln is provided with hinged partitions arranged near to one nr more of the walls so as to form flues for the eirculation of the drying-gases, and opening to give access to the heating-coils &c. Fig. 2 represents a kiln in section having on each side two partitions 12, 18, the former consisting of flaps hinged to an upper beam 13, and the latter consisting of shorter flaps hinged to a lower beam 19. The drying- gases can pass under the partitions 12 and over the partition 18 as indicated bv arrows. Humidifying troughs 15 are arranged below the partition 12. Steam coils 21 are arranged behind the partitions 18. Pipes 22 admit air to the coils, and the air, after being heated, is defected by baffles 24 into the space between the partitions. Outlet pipes 25 lead to the atmosphere; or a blower 28 and return pipes 31 may alternate with the outlet pipes to lead the gases from the chambers containing the coils. The various pipes are provided with dampers, those on opposite sides being independently actuated. The gases may circulate by natural draught, or the blower may be actuated to produce a forced draught. By suitably moving the dampers, air can be admitted and allowed to escape at either or both sides, or a closed circulation may be set up. The dotted lines on the left of Fig. 2 show the position of the flaps when opened.
Patent GB-624935-A (GB)
Title: Improvements relating to gas turbine plant
IPC: F02C7/14
Filed: 1947-07-14
Abstract: 624,935. Axial-flow compressors; gas turbines. SULZER FRERES SOC. ANON. July 14, 1947, No. 18661. Convention date, July 30, 1946. [Classes 110(i) and 110(iii)] Cooling. In a gas turbine plant in which the working medium is compressed by two compressors 1, 5 in series with a cooler 3 between them providing heat interchange between the working medium and water, the cooling is normally effected at least partly by evaporation of the water. The cooler is preferably supplied by a pump with more water than is evaporated, the excess being returned to the supply side of the pump by an overflow pipe; the water vapour produced may be led away to be used for some purpose or discharged to the atmosphere. The overall pressure ratio is at least 8: 1. In the arrangement shown the compressors are driven by independent rotors of a high-pressure gas turbine 11, the useful load being supplied by a lowpressure turbine 13.
Patent GB-307675-A (GB)
Title: Carburettors for internal combustion engines
IPC: F02M9/06
Filed: 1928-06-28
Abstract: 307,675. Amalgamated Carburetters, Ltd., and Brown, C. June 28, 1928. Spray - carburettors. - The fuel nozzle 7 is carried by a block 6 which forms part of the bottom of the main air passage 2 and is provided with an extension 15 bored transversely to conform with the interior shape of the air passage. the extension 15, which is surrounded by the throttle valve 27, being closed at the top bv a member 17 in which is guided a sliding air control plunger 21. The fuel nozzle 7 is controlled by a needle valve 25 carried by the throttle 27 and is surrounded bv a choke tube 8 to which primary air is supplied through an inlet 9. The plunger 21 and the throttle 27 are operated by Bowden wires 22, 18 and the throttle is cut away at 24 on the air-inlet side. Fuel for slow-running is supplied through a restriction 10 to a chamber 11 provided with air vents 12, 14 and communicating with the carburettor outlet 3 through a duct 13. Specification 10649/14 is referred to.
Patent GB-327348-A (GB)
Title: Improvements in traverse mechanisms for bobbin winding
IPC: B65H54/28
Filed: 1929-06-19
Abstract: 327,348. Hamel Akt.-Ges., C., and Hamel, E. June 19, 1929. Winding-machines. - A traverse mechanism for winding bobbins particularly of artificial silk comprises a traverse-rail a, Figs. 1 and 2, mounted between a lower rigid guide-member b and an upper spring-controlled guide-member m, anti-friction balls or rollers c, n being arranged between the rail a and the members b, m. The rail a is reciprocated by a forked arm g on a rock-shaft f engaging a block or roller r mounted on a pin h on the rail, while the member m is carried on cantilever springs o. The rail a and members b, m are made of suitable cross-section to accommodate the balls or rollers c, n.
Patent GB-1216872-A (GB)
Title: Digital data transmission system
Inventor: CROISIER ALAIN
IPC: H04L25/18
Filed: 1968-04-22
Abstract: 1,216,872. Digital transmission systems; transistor pulse circuits. INTERNATIONAL BUSINESS MACHINES CORP. 22 April, 1968 [3 May, 1967], No. 18862/68. Headings H3T and H4P. Binary data is transmitted over a line in polar return to zero form, e.g. Fig. 2c (not shown) the transmitter including a circuit, Fig. 3, having a transformer Tr with a low inductance L across its primary. The secondary is connected to line and bit-rate clock pulses are applied to the centre tap of the primary. The data signals in NRZ form are applied at e1, e2, which are respectively at positive and zero volts, or vice versa, depending on the bit sense. When, for example, e1 is positive, transistor T1 conducts and T2 does not. When a clock pulse occurs current flow in the primary causes a pulse of one polarity to be generated in the secondary. If instead e2 is positive, a pulse of the opposite polarity is generated. Transmitter, Fig. 6.-Unit 20a consists of the circuit shown in Fig. 3. A bi-stable unit 20b consisting of inverting AND gates, Fig. 6 (not shown), is fed by the input binary data. When, for example, there occur simultaneously a 1 bit, a clock pulse (not the same as that applied to the centre tap of Tr), and a gate signal, AND 3 outputs a 0 so that AND 2 outputs a 1. The latter causes AND 1 to output a 0 so that AND 2 outputs a 1 and AND 1 a 0 as long as the gate signal is present or until reset by a data 0-bit. The clock pulses also pass to unit 20c. Each pulse discharges capacitor C1, turning T20 off and T21 on, so generating a clock pulse, synchronized. with the data applied to e1, e2, which is applied to the centre tap of Tr. Receiver, Fig. 7.-Diodes D50-D55 remove peaks from the received polar RZ signals which are fed to transistors T3, T4. Capacitor C charges to the peak value of the input signals and biases T3, T4 so that only the peaks of the signals are passed by T3, T4, one giving signals corresponding to each 1 bit and the other to each 0 bit. These peak signals switch a bi-stable circuit comprising inverting AND gates AND 11. AND 14 to provide NRZ output data. The peak signals also pass to a sync. circuit comprising tuned circuit L5, C5 which feeds a limiter, T53, T54, providing bit rate clock pulses.
Patent GB-370271-A (GB)
Title: Improvements in or relating to loading coils
IPC: H02G15/12
Filed: 1931-06-30
Abstract: 370,271. Inductances. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. June 30, 1931, No. 18879. Convention date, July 30, 1930. [Class 37.] In an arrangement for loading a quad by the three coil system, crosstalk is eliminated by electrostatically screening the coils, and positioning them so that their stray magnetic fields neutralize one another. The phantom coil is placed between the two side circuit coils, all three coils being surrounded by metal foil 6 and supported in a troughshaped container 1 by corrugated cardboard 5: The coil arrangement elimniates cross-talk from side circuit to side circuit, and cross-talk from side circuit to phantom can be eliminated by rotation of the side circuit coils. The supply wires are suitably twisted together to reduce residual capacitative coupling, and are covered by filling material which partially fills the container before adjustments are made, so that on completely filling the container no changes in capacity occur. Coils of normally unsuitable electrical values may be used, since corrections for them can be made during the adjustment.
Patent GB-1301185-A (GB)
Title: Blasting slurry compositions containing calcium nitrate
IPC: C06B47/14
Filed: 1970-04-21
Abstract: 1301185 Explosive compositions IRECO CHEMICALS 21 April 1970 [1 May 1969] 18908/70 Heading C1D An aqueous slurry blasting composition includes at least 10% by weight of calcium nitrate and also contains at least 5% by weight of ethylene or propylene glycol, a thickener, a cross-linking agent, and gas bubbles trapped in the composition formed by chemical reaction of a gassing agent, in order to reduce density and increase sensitivity. Other ingredients of the compositions described are ammonium nitrate, sodium nitrate, nitric acid, ground pitch or gilsonite, and finely divided aluminium. Guar gum or meal or potato starch is used as the thickener. A solution of potassium or sodium dichromate, together with gallic acid or potassium antimony tartrate, may be used as an oxidizer-reducer cross-linking agent for the gum. The gassing agents may be nitrous acid or ammonium, sodium or potassium nitrite with melamine or thiourea, or H 2 O 2  with KI or MnO 2 .
Patent GB-992879-A (GB)
Title: Improved apparatus for transporting tools
Inventor: KACHNIK JOSEPH EDWARD
IPC: E21B19/087
Filed: 1963-05-13
Abstract: 992,879. Earth digging and moving equipment. HENDRICKSON TANDEM CORPORATION. May 13, 1963, No. 18916/63. Heading E1F. [Also in Division B8] A frame 20 on which tools may be selectively mounted comprises an elongated, reversely bent member having ends 38 permitting of pivotal mounting of the frame on support means and a strut or struts 54 that is or are secured at a point or points of spaced connecting points on the member and can be secured to the support means so that the angular attitude of the frame to the support means can be set as required. The support means is preferably a three point lift linkage of a tractor and the tools can be scoops, grader blades, augers, or lifting hooks.
Patent GB-477899-A (GB)
Title: Improvements in or relating to ignition plugs
IPC: H01T13/46
Filed: 1936-07-08
Abstract: 477,899. External sparkgaps ; sparking-plugs. ELDRIDGE, J. W. July 8, 1936, No. 18919. [Class 7 (iv)] A series spark-gap is formed either in the plug insulator or in an attachment for the plug terminal by looping, the adjacent ends of high-tension conductors 3, 4 through holes in a piece of insulating-material 1.
Patent GB-780950-A (GB)
Title: Improvements in or relating to liquid fuel burning appliances
Inventor: IMBER ALFRED GREGORY
IPC: F24C5/18
Filed: 1954-06-28
Abstract: 780,950. Liquid fuel burners. IMBER RESEARCH. Ltd. May 26, 1955 [June 28, 1954], No. 18933/54. Class 75(1). A fuel/air mixing starting device for a liquid fuel burner comprises a "U" tube 1 having a fuel inlet 4 at its base immersed in a fuel tank, an air inlet at one end ana the other end connected to the burner jet 6 the arrangement being such that compressed air in the tank 3 on passing through the "U" tube draws liquid fuel into the tube through the inlet 4 to deliver an air/fuel mixture to the burner jet 6. Specification 780,949 is referred to.
Patent GB-703545-A (GB)
Title: Improvements in or relating to connectors for electric cables
IPC: H01R4/62
Filed: 1950-07-28
Abstract: 703,545. Sleeve couplings. TATE, A. E. July 30, 1951 [July 28, 1950], No. 18953/50. Class 38 (1) In a connector for two steel-cored aluminium cables, Fig. 1, the cores 17 are exposed and joined by a steel sleeve 19 compressed thereon. An aluminium sleeve 21 is arranged around the sleeve 19 and the aluminium sheaths 18, and since the outer diameter of the sleeve 19 is greater than that of the sheaths 18, packing sleeves 20 are placed between said sheaths and the sleeve 21 upon which sleeve 21 is compressed. A connector for attaching a cable to an anchorage is shown in Fig. 2 and comprises an aluminium sleeve 24 surrounding a steel sleeve 23 compressed on the cable core 17, the sleeve 24 being compressed on a packing sleeve 28 placed between i and the aluminium sheath 18. The outer ends of sleeves 23, 24 have nesting forks 25, 26 drilled to pass a pin 27 for attaching them to a lug 22.
Patent GB-381561-A (GB)
Title: Improvements in and relating to refrigerating machines
IPC: F25B1/053
Filed: 1931-07-01
Abstract: 381,561. Refrigerating. AKT.-GES. BROWN, BOVERI, ET CIE, Baden, Switzerland. July 1, 1931, No. 18982. Convention date, Dec. 22, 1930. Addition to 373,753. [Class 29.] Compression. machines and systems. The invention described in the parent Specification is modified by arranging the centrifugal compressor and its driving motor in a cylindrical casing in direct and immediate connection with the evaporator and the condenser respectively through relatively large openings 12, 13. By this arrangement, the usual compressor suction and delivery spirals are unnecessary.
Patent GB-306780-A (GB)
Title: Improvements in and connected with apparatus for containing, preserving and cutting cooked tongue and other food stuffs
IPC: A47J47/00
Filed: 1928-06-30
Abstract: 306,780. Gray, T. June 30, 1928. Cutting slices in succession; meat safes.-In apparatus for containing and facilitating the slicing of cooked tongues and other food, of the type comprising a container and a member slidable therein to feed the meat intermittently towards the open end of the container which is used as a guide for a hand knife, a detachable cover G is provided, integral legs B, B' support the container in an inclined position, and a pin hole J is provided near the open end to receive a pin I which is impaled in the tongue when only a short length is left, to steady it during cutting. The pin is withdrawn prior to each feed movement. The feed is effected by a screw E which is threaded in the rear face of a hollow member C, the front face of which has a central aperture and projections or teeth D arranged on the annulus thus formed. Fig. 3 shows a modification of the pusher, two plates M, N being joined by struts L. The rear plate N has a recess into which a screwed plate Q, which acts as a nut on the screw E, fits. Screws P retain the plate Q in position.
Patent GB-1046556-A (GB)
Title: A holder for block-cleaning, polishing or like materials
Inventor: MCDOUGALL DUGALD RAMSEY
Filed: 1964-05-07
Abstract: 1,046,556. Brushes combined with other articles. KIWI POLISH CO. PTY. Ltd. May 18, 1965 [May 7, 1964], No. 19007/64. Heading A4K. A brush arrangement with four brushes 12 forms a holder 10 of resilient plastic for a block 13 of wax or suede cleaner or a rubber eraser and has a slit 11 so that the holder exerts a resilient grip on the block 13 but permits longitudinal movement thereof.
Patent GB-1127259-A (GB)
Title: Fuel supply system
IPC: F02M55/00
Filed: 1967-04-25
Abstract: 1,127,259. Fuel systems. THERMO KING CORP. April 25, 1967 [ May 2, 1966], No. 19079/67. Heading F1B. In a fuel supply system for supplying a fuel receiver 12 continuously with gas free liquid fuel, from a fuel source (not shown) disposed below the fuel receiver and comprising a fuel line circuit 18, 22, 28, 44, extending from and returning to the source of fuel and a fuel pump 16 for circulating the fuel through the fuel line, the fuel line circuit extends to a point well above the fuel receiver and a fuel conduit 48 extends from an upper portion of the circuit above the fuel receiver downwardly to the fuel receiver, the fuel conduit having a cross-section of passage large enough to permit rising of any gas contained in the fuel during the largest flow of fuel occuring in the fuel conduit. As shown the fuel receiver 12 is an injection pump supplying fuel through the fuel injection lines 14 to a diesel engine. The system includes a primary filter 24, a secondary filter 26 and a pressure relief valve 40.