baber/WOPTO huggingface dataset:
Patent GB-1470987-A (GB)
Title: Submersible pump
IPC: F04D13/04
Filed: 1974-08-01
Abstract: 1470987 Centrifugal pumps E C M PANNELL 1 Aug 1974 33944/74 Heading F1C A submersible pump unit comprises inlet means 11, a liquid pump 18, surmounted thereon, a hydraulic motor 34 for driving the pump and a coupling between the pump and motor shafts 28, 33. Thus the pump or motor can be readily replaced. The inlet means 11 is in the form of a strainer as shown and is attached to the pump casing by pivotable bolts 16 and wing nuts 19, whereby the strainer can be removed for cleaning. The shaft coupling is arranged in an oil-filled housing 32. A flexible delivery hose 23 is attached to the pump outlet.
Patent GB-1102740-A (GB)
Title: Improvements relating to soil measurements
Inventor: VLASBLOM ADRIAAN
IPC: G01V3/02
Filed: 1965-08-09
Abstract: 1,102,740. Electro-physical measurement. STICHTING WATERBOUWKUNDIG LABORATORIUM. Aug.9, 1965, No.33975/65. Heading G1N. The percentage of solid matter in a sample of water-logged sandy soil is determined empirically from the ratio of the conductivity of the whole sample to the conductivity of the ground water filtered off from the sample. The two conductivity values are measured by a hollow probe 1 which is forced hydraulically into the soil and which carries an outer pair of electrode rings 3, 4 through which alternating current is passed through the soil, and an inner pair of electrode rings 5, 6 between which the potential drop is measured. The probe houses a test cell 11, Fig.2 (not shown) which can be pressurized or evacuated so as to draw in or expel through a protective grille 9 a sample of the ground water, the conductivity of which is measured in the same way as that of the soil. It is shown that there is a linear relationship between percentage solid matter and the ratio of the two conductivities, and a family of curves can be plotted as a result of laboratory measurements on various soil samples each mixed with known amounts of water. Differences between samples are mainly due to silt content and this can be indicated by measuring the voltage difference between an electrode 20 in the nose of the probe and a remote reference electrode. When the probe is moving, there is a voltage difference caused by the displacement of water in the sound structure, in addition to the voltage due to the dissolved salts in the ground water. The former voltage is a measure of silt content.
Patent GB-739226-A (GB)
Title: Improved electric hand machine tool
IPC: B25D17/04
Filed: 1953-12-08
Abstract: 739,226. Retractive switches. BOSCH GES., R. Dec. 8, 1953 [Dec. 19, 1952], No. 34047/53. Class 38 (5). The handle of an electric hand tool 10 comprises a lower metal shell 12 and an upper shell 14 fixed together by screws 13 and encloses a toggle switch 17 whose operating lever 18 is actuated by a spring-urged slidable trigger 42. The switch 17 is mounted in an insulating casing 15 having an insulating cover 16 which also encloses the switch terminals 19, 20 and a suppressor 29, the entry cable 26 being secured to the casing 15 by a clip 28. The cover 16 is held in position by a pair of cross ribs 32 with rubber pressure pads 34 formed on the interior of the upper shell 14, a projection 36 on the cover interior engaging a groove 37 in the switch 17. Should the cover be omitted and the trigger 42 actuated the switch is displaced longitudinally in the casing and the lever 18 is not operated.
Patent GB-836171-A (GB)
Title: Improvements in or relating to end connectors for flexible tubing
Inventor: MASON JOHN CHRISTOPHER
IPC: F16L33/01
Filed: 1957-10-31
Abstract: 836,171. Pipe couplings. ABBOFLEX Ltd. Aug. 13, 1958 [Oct. 31, 1957], No. 34063/57. Class 99(1). An end connector for flexible tubing comprises a metallic member 11, with a connection 24, a ferrule 16, an intermediate portion 18 of smaller internal diameter than that of the ferrule 16 and having an internal helical rib 20, and a frusto-conical boss 23 having its larger diameter less than the internal diameter of the portion 18. The connection 24 may be a screwthreaded spigot or socket. The end connection is secured to a composite tube 17, formed by an external sheath 25, e.g. of rubber or synthetic plastic, and a helical grooved flexible metallic core 19, by stripping the end portion of the sheath 25 from the metallic core 19 and screwing the rib 20 into the helical groove, the ferrule 16 being subsequently compressed radially on the sheath 25.
Patent GB-988994-A (GB)
Title: Improvements relating to transducers for use in the measurement and control of the modulus of elasticity in filar structures
Inventor: JANSZEN ARTHUR AUGUST
IPC: G01N3/02
Filed: 1963-08-28
Abstract: 988,994. Measuring electrically. H. M. MORGAN & CO. Inc. Aug. 28, 1963, No. 34068/63. Heading G1N. [Also in Divisions G3 and H4] A transducer for transmitting and receiving longitudinal vibrations on a moving filament or web comprises a roller 31, grooved or otherwise, of high inertia, and attached to a piezo-electric crystal 21, or alternatively to an electromagnetic reed-type vibrator (not shown). Two such transducers are used as shown in Fig. 1 for measuring and/or controlling the modulus of elasticity of natural or synthetic fibres, plastics films or paper during production, by measuring the velocity of propagation of supersonic continuous or pulsed vibrations. The measurement is effected by detecting the phase displacement between transmitter 17 and receiver 19, placed preferably between a snubbing pin 13 and drawing drum 15. For automatic control, the correct phase displacement is set on a phase shifter 41 and error signals from phase detector 43 adjust the speed of drum 15 and hence alter the draw tension upon which the modulus depends.
Patent GB-838028-A (GB)
Title: Polymerization catalyst
IPC: C08F4/70
Filed: 1956-11-08
Abstract: Catalysts for polymerizing olefines are made by reacting a reducing organo-aluminium compound with a reducible compound of a Group IVa metal in the presence of a solid carrier material as support. Preferably the support is first impregnated with the heavy metal compound (e.g. TiCl4 or ZrCl4) and then with the reducing agent (e.g. aluminium alkyl compound). Supports of large surface area specified include alumina, silica, calcium/aluminium silicate, zirconia, zeolites, powdered synthetic resins, natural and synthetic fibres, e.g. wool, silk, or cellulose sponge; natural and synthetic rubber, colloidal metal oxides, or activated carbons.  Reducing organo-aluminium compounds include trialkyl aluminium compounds, dialkyl aluminium halides, alkyl aluminium di-halides; but alkoxy or sulphur radicals may also be present.  Compounds of mild reducing action may be used, e.g. trimethyl aluminium or higher alkyl derivatives of 10 C atoms or more may be used.  Zirconium or titanium tetra-halides are the preferred reducible compounds, but oxy-halides, alcoholates, benzoates, or acetyl acetonates may be used.  Preferably the catalyst/carrier composition is formed in the presence of a solvent, e.g. heptane.  The supported catalyst may be applied to polymerize ethylene, butylene, hexadecene, butadiene, or styrene, and diluents may be present.ALSO:Olefines are polymerized with catalysts formed by reacting a reducing organo-aluminium compound with a reducible compound of a Group IVa metal in the presence of a support of large surface area.  Preferably the support is first impregnated with the heavy metal compound, e.g. TiCl4, ZrCl4, and then with the aluminium reducing agent.  Supports of large surface area include: alumina, silica, calcium/aluminium silicates, zeolite, zirconia, titanium oxide; synthetic resins, e.g. coumarone, ureaformaldehyde, vinyl, styrene, acrylic acid, polyethylene, all in powder form, natural or synthetic fibres, e.g. silk, wool, acetate, cellulose sponge; natural or synthetic rubbers, glass, carbon, or colloidal metal oxides.  Zirconium or titanium tetrahalides are the preferred reducible metal compounds, but oxy-halides, benzoates, alcoholates, and acetonyl acetonates are also referred to.  Reducing organo-aluminium compounds include: tri-alkyl aluminium halides, alkyl aluminium di-halides, but alkoxy, and organic sulphurs and N radicals may also be present. Compounds of mild reducing action, e.g. tri-methyl aluminium, and higher alkyl derivatives containing 10 C atoms or more, or the corresponding halides may be used.  Preferably the catalyst/carrier composition is formed in the presence of a diluent to be used in the polymerizing process, e.g. heptane, tetra-hydronaphthalene, halogenated aromatic hydrocarbons, benzene, xylene or mixtures thereof.  The catalyst in suspension is preferably aged before use and then applied to polymerize olefines including styrene, hexadecene, also butadiene or mixtures thereof.  Polymers of molecular weight up to 3 million may be made; the catalyst may be left in if preferred.
Patent GB-446730-A (GB)
Title: Improvements in or relating to pianofortes
IPC: G10C3/16
Filed: 1935-12-10
Abstract: 446,730. Pianofortes. HORNE, G. F., Ashdown House, St. Leonard's Road, Thames Ditton, Surrey. Dec. 10, 1935, No. 34202. [Class 88 (ii)] In a miniature piano, the keys and sub-key levers are both formed as bell-cranks a, e and j, k respectively. An intermediate vertical lever may be arranged between the leverparts e, j, the latter being then arranged upwards instead of downwards, as shown. The lever-part k may pull downwardly on an extension of the wippen instead of thrusting it upwardly as shown.
Patent GB-1098715-A (GB)
Title: Method of descaling stainless steels
IPC: B23H3/08
Filed: 1966-07-29
Abstract: Stainless steels are descaled by electrolytically treating in an aqueous solution comprising at least 2% of one or more of sodium or potassium sulphate or nitrate, with or without 0.1-10% soluble fluoride e.g. NaF as accelerator and less than 10% tartaric or citric acid as complex-salt former, then pickling in e.g. by immersing in or spraying with a solution comprising 6.5-15% FeCl3 and 5-10% nitric acid or one or more nitrates such as ferric and sodium nitrate (calculated as NO3).
Patent GB-647006-A (GB)
Title: Improvements in and relating to tilting windows and mounting means therefor
IPC: E05D7/082
Filed: 1947-12-29
Abstract: 647,006. Windows. RASMUSSEN, V. B. K. Dec. 29, 1947, Nos. 34427 and 34428. Convention dates, May 22, 1945, and Feb. 23, 1946. [Class 20(iii)] In a window which can be pivoted about a horizontal substantially central axis for ventilation purposes and can also be swung around so far that the outside of the glass can be cleaned from the inside of the building, the said axis C is displaced from the plane of the sash 1 towards the outside of the window whereby during the initial part of the movement of the sash from its closed position, the ends of the sash move virtually at right angles to the frame 2 and the middle zone of the sash adjacent to the axis moves substantially in the plane of the sash. The sash is connected to the frame by pairs of interengaging arcuate guides, the members of each pair being secured respectively to the sash and the frame. In Fig. 6, the member secured to the frame comprises concentric arcuate walls 6 between which is received slidably an arc-shaped rib member 11 secured to the sash, the rib having a concentric slot for the passage of a pin 18 which limits the swing of the member 11 in the upward direction, this limiting position being shown in regularly broken lines. The lower wall 6 is replaced, for part of its length, by a member 8 which is pivoted at 9 but is retained in its operative position by a screw 10. When the sash is swung counterclockwise to open it, the rib 11 slides down the guides 6 into the position shown in dot and dash lines where it is again stopped by the pin 18. In this position it may be swung, for cleaning, about the pin 18 as a pivot, this being permitted by the end of the upper guide 6 entering a gap 13 in the rib 11. Toremove the sash from the frame, the screws 10 are removed allowing the members 8 to swing down so that the ribs 11 may be removed laterally from the guides 6, the pins 18 passing through the gaps 13 during the removal. The sides of the sash and frame are provided with weather excluders 15, 16, Fig. 7, of channel section, which are secured to the frame and sash respectively. The motion of the middle zone of the window, being as stated above, co-planar with the sash, it is possible, as shown, to have an overlap of the weather excluders. In a modification, Fig. 10, the arcuate guide 102, secured by a base member 101 to the sash, is provided with a flange 103 which retains the opposed guide elements 108, 109 which are secured by a base member 106 to the frame. The base 106 carries a pivoted lever 112 which is releaseably secured in such position that a hooked end thereof engages a pin 104 carried by the guide 102, the swing of the sash for ventilation purposes being thus limited. The further swing for cleaning is by the hook swinging around the pin 104 as a pivot, and, if the sash is to be removed, the hook is removed from the path of the pin.
Patent GB-1348453-A (GB)
Title: Pencil type nuclear fuel assembly
IPC: G21C3/324
Filed: 1972-07-24
Abstract: 1348453 Fuel elements COMMISSARIAT A L'ENERGIE ATOMIQUE 24 July 1972 [29 July 1971] 34553/72 Heading G6C A nuclear fuel assembly comprising a bundle of fuel pencils 10 arranged parallel to one another in an envelope 12 bounding a coolant duct is provided with a flat construction formed of two spaced, parallel sheet-metal members 16, 18 interposed between the peripheral fuel pencils 10 of the bundle and the envelope 12 so as to be compressed gradually without rupturing by the pressure of the pencils in the event of differential swelling of the bundle relatively to the envelope. Each fuel pencil 10 comprises uranium oxide and/or plutonium oxide housed within a stainless steel can, the coolant usually being liquid sodium. As shown in Fig. 1, the construction takes the form of six panels each placed up against an inside surface of a hexagonal cross-section envelope 12, the panels being retained by the grid (not shown) bearing the pencils 10. The sheet-metal member 18 is bent to provide longitudinal channels 22 each receivable between two of the peripheral pencils which are devoid of bracing members. The remainder of the fuel pencils 10 are each provided with a bracing member in the form of a helically extending wire 14, these wires serving to determine the minimum spacing between adjacent pencils. The member 18 is pierced at regular intervals with apertures 24 to ensure pressure equalization on both sides of the member. In an alternative embodiment (Fig. 2, not shown) there are protuberances evenly distributed along lines parallel to the assembly axis, these being instead of the channels 22 of Fig. 1. In a further embodiment (Fig. 3, not shown), the flat construction has a smooth inside surface and all the fuel pencils have helically extending bracing members. In both this and the previous embodiment, the outer sheetmetal member is formed with corrugations (28) providing a periodic reduction in the coolant flow cross-section of the flat construction which leads to individual pressure drops ensuring a rate of flow proportional to the heat flux received.
Patent GB-1198111-A (GB)
Title: Improvements in Defibrillators
IPC: A61N1/39
Filed: 1967-07-27
Abstract: 1,198,111. Defibrillators. FRITZ HELLIGE & CO. G.m.b.H. 27 July, 1967 [28 July, 1968], .No. 34560/167. Heading A5R. [Also in Division H3] A defibrillator for applying a direct current pulse to the heart through internal or external electrodes 29a, 29b comprises a charge storage circuit including at least one storage capacitor Cl, C2 and a controller monitoring the charging of the capacitor and arranged to actuate a shock-releasing switch in the output circuit of the capacitor. As shown, the storage capacitors C1, C2 are charged from an A.C. supply 32 through the master switch contacts 2a, 2b, an adjustable transformer 30 (or potentiometer), and rectifiers D1 D2, and the capacitors are arranged to discharge to the electrodes. 29a, 29b through a controller circuit R1, R2, 23, 25 limiting the voltage across the capacitors, and a relay operated isolation, switch 27a, 27b able to separate the capacitors from the electrodes. The defibrillator circuit is arranged such that pressing the master switch 2 allows the capacitors C1 C2 to charge (with the switch 27a, 27b open) until a glow discharge tube 25 triggers to cause a photo-electric device 11 and amplifier 8 to move switch contacts 4a, 4b with a relay 7a, the A.C. supply then being switched by the contacts 4a, 4b, to leads 5, an da relay 12 to close the isolation switch contacts 27a, 27b and allow the capacitors change to be delivered to the patient. The transformer control 31 and the control 34 on the adjustable resistor in the controller circuit can be moved, preferably (by a common control 'knob 35a, so as to adjust the voltage of the deflibrillating pulse. The defibrillator circuit also includes resistors 39, 40 arranged to shortcircuit the charge on the capacitors C1 C2 if the defibrillating pulse is, for some reason, not delivered, and an optional circuit (introduced by a switch 13) able, through a switch 15c and a relay 15b, to synchronize the defilbrillation pulse to the R-wave signal derived from the patients heart via an electrocardiograph 15a, 15.
Patent GB-947275-A (GB)
Title: Apparatus for determining the weight and selling price of an article and for printing a label accordingly
IPC: G01G23/18
Filed: 1962-09-11
Abstract: 947,275. Weighing apparatus. W. KRAUT. Sept. 11,1962 [Sept. 14,1961], No. 34644/62. Heading G1W. Relates to an apparatus for determining the weight and selling price of an article and printing a label therefor,the complete apparatus being in a common casing. As shown Fig. 1 a calculating unit printing unit and weighing apparatus are disposed in a casing 11. A weighing tray 13, a label delivery tray 14 and taring tray 15 project from the front thereof. The weight measured may be read by reference to a pointer 17 and a scale 18. The casing may also contain a heating unit for activating adhesive on the label.
Patent GB-943746-A (GB)
Title: Photographic copying process and apparatus
IPC: G03B27/50
Filed: 1960-10-10
Abstract: 943,746. Photo-copying. OSAKA DENKAI KOGYO KABUSHIKI KAISHA. Oct. 10,1960 [Nov. 23, 1959], No. 34665. Heading G2A. In a photographic copying process, a manuscript or other sheet to be copied is wrapped around a first cylinder 7 whilst a light sensitive copy sheet is wrapped around a second cylinder 9, disposed parallel to the first. During imagewise exposure of the copy sheet through a stationary lens system 33 and a rectangular exposure slit 35, using light from a lamp 40 and a light collector 42, the cylinders are rotated in the same direction and at the same time are relatively axially displaced. Mechanism for moving the cylinders in this manner is as follows. The cylinders 7 and 9 are respectively slidably but non-rotatably mounted on rotatable shafts 3 and 4. Rotation is transmitted to the shafts 3 and 4 from an electric motor 21 through gearing 22-28. The axial movement of the cylinders is brought about by means of two control members 11 and 12 which are mounted on the machine base 1 so as to be slidable in directions parallel, to the shafts, have arms bearing against the ends of the two cylinders and carry rack portions 19, 20 engaged by a pinion 32 coupled through a worm gearing 30, 31 and other gearing to said motor 21.
Patent GB-605389-A (GB)
Title: Improvements in and relating to suction dredges
IPC: E02F3/92
Filed: 1945-12-21
Abstract: 605,389. Suction dredgers. FAIRWEATHER, W. C. (Smit & Zoom's Scheeps-en Werkting- boun N.V., L.). Dec. 21, 1945, No. 34672. [Class 68 (i)] In a suction dredger the enlarged lower end 2 of a suction pipe 1 houses a coaxial tubular member 3 provided with a cutting head 4. The annular space between the end 2 and the member 3 is sealed off and contains bearings 5 and 6 for supporting the member. On the member 3, between the bearings, is formed a gear rim 7 which meshes with a pinion 8 on a driving shaft 9. The pinion is accommodated under a water-tight cover 13, whilst the cutting head 4 is partly covered by a screen 14.
Patent GB-1461962-A (GB)
Title: False twisting spindle apparatus
IPC: D02G1/06
Filed: 1974-08-07
Abstract: 1461962 Automatic control of speed MURATA KIKAI KK 7 Aug 1974 [10 Aug 1973] 34758/74 Heading G3R [Also in Division D1] In an arrangement of false twisting spindles each comprising a turbine-driven tube having a twist pin in its bore, the measured speed of each spindle is scanned in turn, and for each spindle the measured speed is compared with a prescribed speed, and a detected error signal is used to control the turbine speed. False twisting spindles S-n, Fig. 2, are each fed with turbine-driving fluid via tubes 13 and valves 9 operated by servomotors 10. Spindle speed sensors 8, each comprising a spindlemounted magnet and a coil, scanned in succession by scanner 14. A difference between the signal from a detector 8 and a prescribed speed signal from setting device 16 causes comparater 15 to signal controller 17 to actuate the associated valve motor 10, to adjust speed of the scanned spindle. When the spindle speed is brought within prescribed limits, motor 10 is stopped and the next spindle is scanned. In a second embodiment, while the speed of one spindle is being adjusted the speed of the other spindle is being scanned, on assessment of the speed of the one spindle being made when it is next scanned. In a third embodiment, the scanning is continuous, and the motors 10 are con-  trolled by a timer. Each spindle comprises, Fig. 1, a tube 3 having blades 2 rotated by fluid from passage 4, a twist pin P, and gas bearings fed with gas from passages 6. Speed detector 8 is actuated by tube-mounted magnet 7.
Patent GB-826168-A (GB)
Title: Improvements in colliery turntables
IPC: E21F13/04
Filed: 1956-11-14
Abstract: 826,168. Turntables; transferring vehicles between pit cages and tipplers. QUALTER, HALL & CO. (SALES) Ltd., and LINES, C. Oct. 11, 1957 [Nov. 14, 1956], No. 34823/56. Addition to 776,667. Classes 78 (4) and 104 (2). The multiple exit runways D, E from a turntable A similar to that of the parent Specification merge at, instead of on, the turntable. As illustrated a selector beam H moved by a ram J determines which track D, E is fed and the tracks lead through pit cages C, C<SP>1</SP> to a similar turntable B having two inlets and a single outlet F leading to a tippler G.
Patent GB-797485-A (GB)
Title: Improvements in low temperature nuclear reactors
IPC: G21C13/06
Filed: 1956-11-19
Abstract: 797,485. Nuclear reactors. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Nov. 19, 1956 [Nov. 24, 1955], No. 35240/56. Class 39(4). A nuclear reactor used for heating is cooled by heavy water under pressure and comprises a reactor vessel 4 containing the heavy water and within a pressure vessel 5, the space between containing graphite or other reflector material. The cover of the pressure vessel comprises an annulus 15 and a thick plate 13 bolted together. D 2 O is admitted at 10, serves as a moderator and then passes from the reaction space through tubes 8 surrounding fuel rods 1 to a collecting space 7 where its temperature is over 100‹C. Helium or carbon dioxide from an expansion vessel 17 maintain equal pressures on either side of the reaction vessel 4, which can thus be thin to reduce neutron capture. A small amount of D 2 O occupies any spaces in the graphite in the reflector space. Control rods 3 are located in tubes 18, and lift with the cover 15, 13, together with tubes 8 and fuel rods 1.
Patent GB-1380883-A (GB)
Title: Intermediate for biologically active ethers
IPC: C07C233/12
Filed: 1970-09-01
Abstract: 1380883 A substituted ether WELLCOME FOUNDATION Ltd 26 Nov 1971 [1 Sept 1970 23 July 1971 31 Aug 1971] 35268/74 35270/74 and 35269/74 Divided out of 1380882 Heading C2C The novel compound, 2-chloroethyl 2<SP>1</SP>-(4- acetamidophenoxy)ethyl ether is obtained by reacting an alkali metal salt of 4-acetamidophenol with bis-(2-chloroethyl) ether.