baber/WOPTO huggingface dataset:
Patent GB-1117555-A (GB)
Title: Vehicles
IPC: B62D33/033
Filed: 1966-03-21
Abstract: 1,117,555. Side' gates. G. SONTHEIMER. 21 March, 1966 [20 March, 1965], No. 12345/66. Heading B7B. [Also in Division E2] The floor 11 of a vehicle body is supported on side sills 12, 13 having downwardly open channel shaped edge parts which support the beaded edge of another channel forming part of the side gate 1, the interengaging parts forming a hinge extending the full length of the vehicle body. Stops 10 are secured to the side sills to prevent disengagement of the side gate.
Patent GB-636812-A (GB)
Title: A device for removing scale from a pipe
IPC: B08B9/045
Filed: 1948-05-05
Abstract: 636,812. Tube scrapers. ANNING. F. J. C., and LAMPARD, J. W. May 5, 1948, No. 12351. [Class 99(ii)] A pipe 1, such as a boiler feed-water pipe, and a rotatable shaft 3 disposed therein each carries a scraping-blade or blades 9, 10 and 7, 8 respectively so that on rotation of the shaft scale is removed both from the shaft and pipe, the blades 7, 8 being also arranged to remove scale from the pipe exit. The shaft 3 may be rotated by a handwheel 4, and the blades may be tapered and extend radially of the shaft and pipe such that rotation of the former is limited to about 110 degrees. Portions 11 of the shaft blades extend through circumferential slots 5 through which the water passes into the boiler.
Patent GB-1285005-A (GB)
Title: Circuit arrangements for the protection of semiconductor elements in picture receivers
Inventor: KRUG HELMUT
IPC: H04N3/20
Filed: 1971-04-30
Abstract: 1285005 E.H.T. supplies; protecting semiconductor devices GRUNDIG EMV 30 April 1971 [2 May 1970] 12405/71 Headings H2F and H2K [Also in Division H3] A semi-conductor element in a picture receiver is protected from impulses due to flashover of the picture tube by shorting the element through a thyristor in response to the flash-over. The figure shows a resonant return type line time-base feeding deflection coils 6 and providing an E.H.T. voltage via transformer 2. A capacitor 14 is normally charged via rectifier 12. If flash-over occurs, the rise of voltage is transferred through the stray capacitance 18 between the tube coating and the coils and raises the collector potential of transistor 10. The rise is however passed through a capacitor 15 to fire a thyristor 11 and thus shunt the transistor. The thyristor extinguishes when the transistor next bottoms. A gas tube in shunt with a capacitor may be connected in series with the thyristor to improve the protection (Fig. 2, not shown).
Patent GB-1071215-A (GB)
Title: X ray spectrometry
IPC: G01N23/22
Filed: 1965-03-24
Abstract: 1,071,215. X-ray tubes. CENTRAL NATIONAL DE RECHERCHES METALLURGIQUES & COMPAGNIE GENERALE DE RADIOLOGIE. March 24, 1965 [April 1, 1964], No. 12408/65. Heading H1D. [Also in Division H5] Apparatus as described in Specification 1,071,214 is adapted for use in X-ray fluorescence analysis of a specimen as well as analysis techniques involving bombardment of the specimen by electrons to produce characteristic X-rays. The main vacuum cavity (2) for location of the electron gun is arranged to be a cylindrical hole, open at the top end to the specimen and having two conical apertures (41, 42) (Fig. 5, not shown) in its sides near the blind end. The axes of the apertures are radial to the vertical axis of the cavity and meet the latter at vertically spaced points. The cavity is also provided with an aperture in the side at the end next to the specimen to allow the passage of X-rays from the specimen to a detector. For electron bombardment of the specimen, one of the apertures is plugged by a bung (47) and in the other is mounted an electron gun (48) arranged to emit a beam vertically upwards at the specimen (Fig. 6, not shown). For fluorescence analysis, a beam of primary X-rays for irradiation of the specimen is produced by bombardment of a pyramidal anti-cathode (53) (Fig. 7, not shown) mounted in one aperture (41) by electrons from a gun (54) mounted in the other aperture (42). The anticathode surface may be an insert or electrolytic deposit of tungsten or chromium. The anticathode is water-cooled. The electron gun is a heated filament.
Patent GB-729913-A (GB)
Title: Improvements in or relating to epicyclic transmission gears
IPC: F16H3/66
Filed: 1951-05-28
Abstract: 729,913. Variable-speed gearing. WILSON, R. H. Aug. 25, 1952 [May 28, 1951; April 26, 1952], Nos. 12413/51 and 10560/52. Class 80 (2). Gearing giving three forward and one reverse ratios comprise an epicyclic gear train 1, 4, 6 which can be locked solid by a clutch 15. A gear 7 formed on the sleeve 8 having the sungear 6 meshes pinions mounted on a fixed support 9, the pinions also meshing a toothed annulus 11. A shaft 5 between the driving and driven shafts 2, .14, is fixed to the planet carrier 4 and has clutch teeth engageable with teeth on a slidable sleeve 18. The latter is splined to the driven shaft 14 and supports a free-wheel clutch 13, the inner sleeve of which is splined to the annulus 11. The sun sleeve 8 may be held stationary by engaging a brake 16. The annulus 1 is secured to the driving shaft 2. With the sleeve 18 in the position shown and the clutch 15 and brake 16 both disengaged, the lowest gear ratio is obtained by differential action of the two gear trains. Second gear ratio results from engaging brake 16 and the highest speed is obtained by engaging clutch 15 to lock the epicyclic train solid. If the sleeve 18 is moved to the left to disengage the shaft 5 and lock the free wheel 13 and clutch 15 is engaged a reverse drive through the annulus 11 results. The gearing may be arranged in series with a two-speed gear to give six speeds or with a three-speed gear to give nine forward speeds.
Patent GB-858042-A (GB)
Title: Improvements in or relating to methods for producing potassium-sodium-niobate ceramics
Filed: 1959-04-13
Abstract: Potassium-sodium-niobate ceramic material having an empirical formula in the range from K0.9Na0.1(NbO3) to K0.1Na0.9(NbO3), is obtained by mixing sodium carbonate, potassium carbonate and niobium pentoxide in proportions such that the molecular ratio of niobium pentoxide to the sum of the moles of potassium carbonate and sodium carbonate is unity and the ratio of the moles of the sodium carbonate to the moles of potassium carbonate corresponds to the ratio of the moles of sodium to the moles of potassium in the ceramic being produced, calcining the mixture at 750 DEG C. to 1000 DEG C., moulding the calcined material into a shape for use in a piezoelectric device, and firing the shape at 1030 DEG C. to 1305 DEG C.  The components are mixed in a ball mill, dried, crushed to remove large particles, calcined in an oxidising atmosphere for eight to sixteen hours, and the calcined material is crushed, screened to remove large particles, leached with hot aqueous potassium carbonate, washed in hot water, dried, crushed, screened again, moulded under pressure using an organic binder if desired, and fired in an oxidising atmosphere. The ceramic element is fitted with electrodes and polarized at 200 DEG C. in an oil bath. In an example a ceramic is prepared corresponding to the formula K0.5Na0.5(NbO3).
Patent GB-1049915-A (GB)
Title: Production of dispersions of polymers in non-polar liquid media
Inventor: MILLAR JOHN ROBERT
IPC: C08J3/09
Filed: 1964-03-24
Abstract: Dispersions of polymers in non-polar liquids are prepared by forming an emulsion of the polymer in a polar liquid medium with an oil-in-water emulsifier and adding this emulsion slowly to a non-polar liquid medium in the presence of a water-in-oil emulsifier while simultaneously removing the polar liquid medium. Removal of the polar liquid medium can be effected by distillation at atmospheric or reduced pressure.  The water-in-oil emulsifier may be added to the initial emulsion before, or at the same time as, the emulsion is added to the non-polar medium.  The polar medium is generally water while the non-polar medium may be a petroleum or drying oil.  Sodium lauryl sulphate is exemplified as an oil-in-water emulsifier; water-in-oil emulsifiers specified are fatty acid amides, octylphenyl-polyglycol ethers, glyceryl mono- and tri-stearate, and sorbitan monostearate. Pentaerythritol esters of dimeric rosin acids may be added to the nonpolar medium before the addition of the polymer emulsion.  In examples, the polymers used are polyethyl acrylate, polystyrene and poly-n-butyl acrylate, which are prepared by polymerizing the corresponding monomers in aqueous emulsion using a thioglycollic acid/hydrogen peroxide catalyst.  The polyacrylate dispersions are suitable for use in printing inks.
Patent GB-169479-A (GB)
Title: Improvements in brakes for motor-vehicles
IPC: F16D65/14
Filed: 1921-02-05
Abstract: 169,479. Alley, S. E. Feb. 5, 1921. Blocks acting on drums.-In brakes of the kind comprising a pair of shoes disposed in the same plane and adapted to be separately applied to the interior of a. drum, the shoes A. B are mounted on a common pivot C and are respectively operable by cams A2, B2 on shafts A3, B3 arranged side by side. The shoes are pivoted by means of half bushes A1, B1. Releasing springs F engaging the shoes are threaded on rods H.
Patent GB-684343-A (GB)
Title: A printing sheet securing device
IPC: B41L29/00
Filed: 1950-05-18
Abstract: 684,343. Printing-surfaces. ROTAPRINT AKT.-GES. May 18, 1950 [July 9, 1949], No. 12443/50. Class 100 (ii). By means of a device for securing a printing sheet to the printing drum of a printing machine, especially for offset printing, a printing sheet, such as a metal sheet M, provided with a row of holes, can be secured by a row of hooks H, arranged within a groove-like receiving pocket L which opens 'towards the periphery of the drum, and which contains additionally one or more guiding projections which engage with corresponding recesses in the sheet to effect centering thereof, the depth of the pocket being such that the sheet, after insertion therein, is brought with the edge having the row of holes into a correct position in relation to the hooks, so that on turning the sheet over on to the drum, it is pushed on to the hooks and kept thereon. The edge of the sheet tends to slide up the outer wall of the pocket, thus securing the sheet firmly on the hooks. The centering projection K extends centrally from the pocket and engages a central recess in the edge of the sheet. The recess and projection are provided with parallel flanks.
Patent GB-252702-A (GB)
Title: Improvements in the reaction blading of steam and gas turbines
IPC: F01D5/14
Filed: 1926-05-11
Abstract: 252,702. Akt.-Ges. Brown, Boveri, et Cie. May 27, 1925, [Convention date]. Blades. - The rotor and stator blades of a reaction turbine have an inlet angle of substantially 90‹ and the passage between the blades merges rapidly compared with known blade passages into a short final portion of small cross-sectional area bounded by parallel walls. The fluid passage is such that if the radii of the inscribed circles are marked off on the developed central line a of the passage a straight line d is obtained inclined at an angle of 16‹ to 20‹ slightly concave near the top and with a short parallel portion e about “ the length of the passage. The blade exit angle is 20‹ or less.
Patent GB-755139-A (GB)
Title: Improvements in or relating to tractor wheels
IPC: B60B15/02
Filed: 1954-04-29
Abstract: 755,139. Tractor wheels. ARANETA, V. A. April 29, 1954, No. 12474/54. Class 144 (1). A tractor wheel for use on paddy fields comprises a single wheel, or attachment, rim 1 with upstanding cleats 2, 2a secured thereto to extend laterally at spaced intervals on each side respectively, the free ends of the cleats being connected at each side by a reinforcing ring 3, 3a spaced from and coaxial with the rim 1 but having no other connection with the wheel. As shown, the cleats 2, 2a and rings 3, 3a are of angle iron, the upstanding flange depth of each cleat being uniform or varying throughout the length of the cleat.
Patent GB-125198-A (GB)
IPC: B60R25/022
Abstract: 125,198. Brettell, F. G., (Nugo Device Corporation). April 5, 1918. Handles. - The steering-wheel can be freed from the steering post to render the steering - gear inoperative and prevent unauthorized use of the car, the ignition being simultaneously i n t e r - rupted. The steering- post 2 is provided with a nut 8 riding in a sliding sleeve 7, the upper part of which is shaped and is received in a socket on the 'steering-wheel. In the upper position of the sleeve, the nut 8 rides in a circular part of the sleeve. When the sleeve is depressed, the nut 8 is engaged by a shaped part of the sleeve and the steering-wheel becomes operative. The sleeve is locked in its upper and lower positions by a lock 11. The inter-engaging parts connecting the steering-wheel and post may be of elliptical or indented circular cross-section. A pair of contacts are provided which are separated when the steering-connection is broken, thereby interrupting the ignition.
Patent GB-1034653-A (GB)
Title: Improvements in or relating to safety devices
Inventor: SIMPSON HAROLD WILLIAM
IPC: A47L3/04
Filed: 1962-04-02
Abstract: 1,034,653. Rope railways. BABCOCK & WILCOX Ltd. April 2, 1963 [April 2, 1962], No. 12554/62. Heading B7L.  A safety device for a person traversing an elevated way 3, comprises a rope 4 acting as a hand hold and being fixed at one end 16 and wound on to a drum 20 at the other whereby the rope can be tensioned before use by raising handle 31 to rotate the drum 20, a pin in an appropriate hole 37 in guide 32 holding the handle in position; personal harness is attached to a slider 50 on the rope, an arm 52, Fig. 8, of which is at an angle to a plane through the axis of bore 52 corresponding to the inclination of a slot 44 in rope supports 40, Fig. 5, each support comprising a cylindrical sleeve 43 and supporting ribs 41, 42. The slider 50 can pass through the supports without disconnection from the rope. In Fig. 10 (not shown), the rope is bent through a right angle at its end 16 and a recessed pulley enables the slider to follow the rope. The rope may be alternatively tensioned by forming a kink in it. The various supports 40 and supports for the drum 20 and handle 31 are attached to a framework of girders by hook bolts.
Patent GB-400672-A (GB)
Title: New or improved apparatus for the making of beverages
IPC: A47J31/52
Filed: 1932-05-02
Abstract: 400,672. Apparatus for making tea. ABSOLOM, G. A., 52, Lansbury Drive, Hayes, Middlesex. May 2, 1932, No. 12555. [Class 129.] In apparatus for making tea or similar beverages at a predetermined time, the water boiler and teapot are placed on opposite ends of a pivoted platform so that transference of the heated water can operate a switch to cut out the electric heating circuit and complete an alarm bell circuit. The general arrangmeent is shown in the Figure. The water is heated in the boiler 13 when a time switch in the clock 28 completes the heating circuit. Transference of the boiling water by siphoning from the boiler 13 to the teapot 14 rocks the platform 10 causing a mercury switch to interrupt the heating circuit and make a circuit to ring an alarm bell. The same movement may light the lamp 32 also, if this is connected at 33. The lamp may be switched off independently at 31. A switch 30 is inserted for switching off the alarm bell.
Patent GB-1016290-A (GB)
Title: Chain feed haulage of coal cutters
IPC: E21C29/16
Filed: 1963-03-29
Abstract: 1,016,290. Mineral-mining machine haulage. MITSUI-MIIKE SEISAKUJO KABUSHIKI KAISHA. March 29, 1963 [April 7, 1962], No., 12661/63. Heading E1F. The means by which a coal cutter hauls itself in either direction along a fixed chain is such that the short length of chain between a driven feed sprocket and the trailing guide sprocket of the two guide sprockets positioned to either side of the feed sprocket is maintained under tension. In one embodiment according to the direction of rotation of the feed sprocket one or other of the guide sprockets is driven through a uni-directional gear drive involving a slipping clutch and designed to cause the guide sprocket to be driven at a higher speed than the feed sprocket. In another embodiment in which the feed of the chain on to the feed sprocket is at the same rate as the chain feed therefrom there is positioned between contacting surfaces of inter-engaging teeth of the gear trains by which a drive is directly and simultaneously transmitted to the guide sprockets springs which permit of sufficient resilience to the trains to cause appropriate tensioning of the chain on the output side of the feed sprocket.
Patent GB-412022-A (GB)
Title: Improvements in or relating to land trenching appliances for drainage purposes
IPC: E02F5/08
Filed: 1933-05-01
Abstract: 412,022. Drain - - making apparatus. BARRETT, E. 0., 41, Swindon Road, Wroughton, Wiltshire. May 1, 1933, No. 12678. [Class 6 (i).] An appliance for making drainage trenches comprises a frame a adapted to be clipped or bolted to the axle or axle case of a vehicle, and a swing frame d pivoted on the main frame, the swing frame carrying an operating lever e, a trenching wheel g and a starting tine f which, on engaging the ground, assists in drawing the trenching wheel into the ground. The trenching wheel comprises a disc h clamped between two cupped members. Cross bars m limit rearward movement of the swing frame d and the frame may be held in raised position by a catch.
Patent GB-1221865-A (GB)
Title: A circuit for controlling the rotational speed of asynchronous machines with slip-ring rotors
Inventor: THAMM SIEGFRIED
Filed: 1968-03-15
Abstract: 1,221,865. Control of A.C. motors. INSTITUT FUR SCHIFFBAU. 15 March, 1968, No. 12691/68. Heading H2J. A circuit for controlling the speed of asynchronous, wound rotor, machines comprises controllable switch means to conduct current in either direction (thyristors 5a ... 13b) to connect the rotor windings to the stator and hence to the A.C. supply, and a quenching circuit (capacitor 20 and thyristors 14a ... 19b) connected to the rotor, the speed being controlled by the frequency and duration of operation of the switch means. Instead of the thyristors shown the switch means may comprise thyratrons. They may be triggered to short circuit for variable periods of time any two phases of the rotor, or to connect them to any of the phases of the supply. When short circuiting thyristors are quenched the rotor voltage is boosted by inductors 3r, 3s, 3t so that current is fed back into the supply. Capacitors 21 suppress harmonics in the supply, and a number of motors may be controlled by a single control circuit.
Patent GB-912718-A (GB)
Title: Filing cabinet apparatus of the endless conveyor type for document carriers
IPC: A47B63/06
Filed: 1960-04-11
Abstract: 912,718. Filing cabinets. ZIPPEL, G. A. April 11, 1960 [April 10, 1959], No. 12860/60. Class 146 (1). A filing cabinet wherein document carriers 5 are secured between a pair of endless chains 2, is characterized in that the path of each chain is of substantially triangular form in which the side 1 adjacent the back of the cabinet is vertical and the second side 2 is longer than and lies above, the third side 3, the second side being accessible through an opening 13 in the front of the cabinet. The carriers are stabilized during motion by rollers 12, 12a on at least one side wall of each carrier engaging guide tracks 10 in the side walls of the cabinet. The carriers are provided with hingeable front walls 6 held in their closed positions by catches. A closing device is attached to the inside of the cabinet to return a front wall to its closed position, if said front wall is left open and the conveyer chains set in motion. A door 14 provided to close the opening 13, serves as a table when open. Alternatively, the opening extends practically the entire height of the cabinet and is closed by a roller blind. One pair of coaxial sprocket wheels 4 are adjustable to regulate the tension in the chains, the latter being rotated by an electric motor.
Patent GB-1142871-A (GB)
Title: Cutting apparatus for light-weight concrete
IPC: B28B11/14
Filed: 1966-03-23
Abstract: 1,142,871. Cutting concrete blocks. C. G. B. BERGLING. 23 March, 1966 [23 March, 1965], No. 12913/66. Heading B5A. In a device for cutting concrete blocks from a light-weight concrete block 16 whilst in a plastic or semi-plastic state, the block 16 is supported on the bottom of a mould comprising spaced-apart ribs 4 supported on transverse beams 2 by spacers 3 and covered by paraffin wax or plastics foil, and is cut by wires 6 held in stationary upper and lower holders 17, 7 respectively. Each holder 7 is of magnetic material and is supported by three electromagnets 9 supported in turn by transverse beams 11 an hydraulic or pneumatic cylinders 13 with an associated upstream control device 14. The block 16 travels from left to right via rollers 5 and when a beam 2 contacts a control 14, this cuts off the electricity to the electromagnets and activates the associated cylinder 13 to lower its magnet to the fullest extent to allow the beam 2 to pass. The arm 14 then reenergizes the magnets and the beam 11 is raised. This system acts at each arm 14 such that the holder 17 is always alternately held by two magnets. In a further embodiment (Figs. 2-4, not shown) a lower holder (31) is supported by a pneumatically operated ball (37) in association with an arm (36). In both embodiments the cylinders 13 and hence the supports 7, (31) and wire 6 (32) are oscillated vertically at 300-400 vibrations per min., while the support 17 provides a resilient seat.
Patent GB-558370-A (GB)
Title: Art of producing magnetic material
IPC: C21D8/12
Filed: 1942-09-14
Abstract: 558,370. Steel Alloys; annealing. WILLIAMS, W. P. (Armco International Corporation). Sept. 14, 1942, No. 12951. [Classes 72 and 82 (i)] [Also in Group XXII] High-maganese silicon steel alloys or other high-manganese ferrous alloys having the same crystal characteristics are given high pernieability at high induction by hot rolling, reducing the thickness 60 to 85 per cent by rolling at 250‹ to 700‹ F., annealing, reducing the thickness 50 to 85 per cent. by again rolling at 250‹ to 700‹F., and again annealing. An ingot containing 2.9 to 3.6 per cent of silicon, 0.1 to 0.3 of maganese, and not more than 0.02 of carbon and 0.03 of sulphur may be hot rolled to form slabs which are heated at 1800‹-2100‹F for 2¢ hours, rolled by universal and tandem mills to a thickness of 0.105 ins., trimmed box annealed in coils at 1400‹F for 24 to 36 hours, and cooled quickly or say at 85‹ per hour to 1100‹F. when the box is opened and allowed to cool to 500‹F. in 30 minutes. After pickling the strip may then be rolled, at 250‹-400‹F. to 0.025 ins. in thickness in 4 to 6 passes. In some cases the heat generated by working may be sufficient to maintain the desired temperature. The strip may then be open annealed at 1850‹-1950‹F. pickled, edge trimmed, and again cold rolled under the same conditions to a thickness of 0.012 ins. The strip may then be cut into sheets, cleaned by scrubbing or low temperature oxidation, coated with magnesium oxide to act as a separator, annealed flat in a box for 12 to 30 hours at 2200‹F., and then cooled in an atmosphere of pure dry hydrogen, at least during cooling, which reduces the carbon in the sheets to about 0.008 per cent or less. In a modification the cold reduction may be in three instead of two stages. Specification 527,525, [Group XXII], is referred to.