baber/WOPTO huggingface dataset:
Patent GB-383653-A (GB)
Title: Improvements in liquid meters
IPC: G01F3/18
Filed: 1931-07-07
Abstract: 383,653. Liquid meters. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.- (Brodie Co., R. N.; 61st Street, Oakland, California, U.S.A.) July 7, 1931, No. 19542. [Class 69 (ii).] A liquid meter comprises pistons 21, 22, Fig. 2, reciprocating and turning in cylinders 18, 19, each piston having ports co-operating with inlet ports 28, 29, Fig. 4, and discharge ports 26, 27 ; the provision of upper and lower discharge ports prevents the accumulation of air and grit. Each piston has a pin 40 received in a socket 42 eccentrically positioned in a pinion 43, and the pinions 43 mesh with a pinion 44 operating a counter. The positions of the sockets 42 are adjusted by eccentrics on pins 51 to vary the piston stroke, calibrated collars beins provid d on the pins. Specification 350,893 is referred to.
Patent GB-1481772-A (GB)
Title: Process for the continuous manufacture of nitrous oxide
IPC: C01B21/34
Filed: 1975-01-21
Abstract: 1481772 Nitrous oxide SOUTH AFRICAN INVENTIONS DEVELOPMENT CORP 21 Jan 1975 [30 Jan 1974] 19562/76 Divided out of 1481771 Heading C1A Nitrous oxide is produced by decomposition of ammonium and nitrate ions in an aqueous reaction liquor in a reaction vessel in which reaction liquor there is maintained a catalysing concentration of chloride ion and strongly acid conditions in the sense of a hydrogen ion activity at least equal to that of a 2M solution of nitric acid at the prevailing temperature, conducted as a continuous process and comprising the following steps: (a) as said decomposition proceeds, feeding a source or sources of ammonium and nitrate ions into the aqueous reaction liquor contained in the reaction vessel; (b) maintaining in the reaction liquor a temperature above 80‹ C up to and including the boiling temperature of the reaction liquor at the ambient pressure inside the reaction vessel; (c) withdrawing from the reaction space as the decomposition proceeds, water formed by said decomposition and such excess water as may be introduced into the reaction vessel in the course of step (a) above; (d) scrubbing the nitrous oxide formed by the decomposition and which is contaminated by chlorine with aqueous alkali, e.g. NaOH or LiOH, thereby removing the chlorine in the form of a hypochlorite; and (e) withdrawing said hypochlorite from the process system.
Patent GB-1390812-A (GB)
Title: Process for the production of a semi-conductor structure
IPC: H01L29/00
Filed: 1972-04-27
Abstract: 1390812 Transistors ARBEITSSTELLE FUR MOLEKULARELEKTRONIK 27 April 1972 19564/72 Heading H1K In the manufacture of a transistor, the definitive apertures for emitter diffusion and base contact formation are formed simultaneously in a common silicon nitride masking layer. In Fig. 1b, base region 2 has been formed by diffusion through a mask 4 and the entire surface has then been covered with successive layers of silicon oxide 6 and silicon nitride 8. The two definitive apertures have been produced in the nitride layer 8 only by photoresist etching with, if necessary, the use of an auxiliary mask of silicon dioxide, or of tungsten, molybdenum, or nickel. The emitter diffusion aperture has been completed. by using an etchant selective for the oxide layer 6 in conjunction with an oversize photoresist mask 10 to avoid the need for fine registration. After emitter formation, the oxide 6 in the base contact aperture is similarly removed, and emitter and base contacts are formed from a deposited metal layer. An intervening diffusion step may enhance the conductivity of the base contact area, and the nitride layer 8 may be removed prior to deposition of the contacts. In the modification of Fig. 2 (not shown), oxide layer 6 is replaced by a borosilicate or phosphosilicate layer (18) which is formed in the aperture in mask 4 during base diffusion. A further phosphosilicate or borosilicate layer (20) is formed in the emitter aperture during emitter diffusion, and there are minor differences between the methods used for making NPN and PNP transistors since the etching rates for borosilicate and phosphosilicate glasses are significantly different.
Patent GB-246735-A (GB)
Title: Improvements relating to woven yarn belts for conveyer or other purposes
IPC: D03D3/00
Filed: 1925-08-04
Abstract: 246,735. Alexander, F. W., and Lewis & Tylor, Ltd. Aug. 4, 1925. Multiple fabrics.-In woven yarn belts for conveying or driving of the kind in which binding strands e<1>, e<2> are wound round the weft strands c<1>, c<2>, - - - , d<1>, d2, - - - of the top and bottom surfaces of the belt, each surface of the belt is provided with a facing of strands f<1> of a heavy soft yarn which is applied under comparatively low tension and passes alternately under and over the successive picks of weft strands. After proofing the loops are rolled down to form a hard wearing surface. The loose facings are preferably prolonged to wrap round the sides of the belt. Specifications 6473/98, 10146/03, and 3005/12 are referred to.
Patent GB-277785-A (GB)
Title: Improvements in safety thermal control mechanism for liquid fuel burning systems
IPC: F23N1/00
Filed: 1926-08-10
Abstract: 277,785. Marks, E. C. R., (Williams Oil- O-Matic Heating Corporation). Aug. 10, 1926. Electrically controlling fuel and air supplies.-In a liquid fuel burning system, the high voltage circuit to an electric motor operating the pumps for discharging an atomized fuel mixture from the jet nozzle 10 is controlled by a relay switch R which is moved to the right about its pivot R<1> to open the circuit or to the left to close the circuit by electromagnets arranged in low voltage circuits which are closed when the movable arm of a room thermostat Y reaches its extreme positions. The low voltage. circuit is supplied with current from the high voltage mains through a transformer X, The low voltage circuit from the transformer to the thermostat Y is made through a thermal switch T which comprises a contact arm 42 normally engaging a contact member 46 and riding on a bimetallic spring screw 18 carried by a plate 17 on the gas pilot jet lever 38 arranged adjacent to a heating coil 36. The heating coil is connected to an insulated screw 18 carried by a plate 17 on the gas pilot jet 14 igniting the liquid fuel mixture. When the pilot jet is alight its heat is sufficient to hold a bimetallic contact arm 21 in the raised position shown dotted in Fig. 3, but when it is extinguished the contact arm engages the screw 18. If the motor is operating, a low voltage circuit is completed by the engagement of the parts 18, 21 from one terminal of the transformer through the coil 36, the metal of the burner, an earth lead 27, the pivoted arm of the switch R and the metal plate on which the electromagnets are mounted to the other terminal of the transformer. The heat thereby generated in the coil causes the lever 38 to operate the arm 42 to close a circuit through the contact 47 to the right hand electromagnet and thus breaks the motor circuit. The plate 17 to which the arm 21 is attached is fitted with a mica-faced guard 24 to protect the device from temperature variations.
Patent GB-316751-A (GB)
Title: Improvements in and relating to boat and other bodies
IPC: B64C35/00
Filed: 1928-07-07
Abstract: 316,751. Saunders, S. E. July 7, 1928. Cars.-Aircraft bodies of the kind in which interior panels of wood b are sheathed in an outer skin of metal a, the butt joints at the junction of the panels are rendened watertight by providing each metal sheath with an extended edge d which is bent inwards at right angles to form interior flanges lying in contact with the edges of the panel. The abutting flanges are bolted at f. Various modifications are described for applying transverse framing members to the flanges, the frames including angle, channel, bulb angle, double channel U and H sections. Fig. 6 shows a transverse member g of angle section, and Fig. 17 a bull head rod o. In this case the flanges are bent over to lie on the inner face of the panel.
Patent GB-1255047-A (GB)
Title: Improvements in fuel pumps
Inventor: BROOKS ERNEST
IPC: F02M1/00
Filed: 1969-04-18
Abstract: 1,255,047. Diaphragm pumps. J. BROOKS. May 28, 1970 [April 18, 1969], No. 19976/69. Heading F1A. A diaphragm pump has a rod 18 attached to the pumping diaphragm 17, the rod being moved on its suction stroke by a drive rod 22 or by a thumb operated lever 28. During power operation the lever 28 is biased away from a washer 31 on the rod 18 by a spring 32. The return stroke of the diaphragm is effected by a coil spring 24.
Patent GB-875485-A (GB)
Title: Improvements in cold-cathode stepping tubes and circuits therefor
Inventor: CROWTHER GERALD OFFLEY
IPC: H03K17/52
Filed: 1957-06-25
Abstract: 875,485. Electronic counting apparatus. MULLARD Ltd. April 17, 1958 [June 25, 1957], No. 19985/57. Drawings to Specification. Class 106 (1). [Also in Group XL (a)] In a counting circuit similar to those described in Specifications 806,943, 806,944 and 875,484 including a cold-cathode stepping tube of the type having a central electrode surrounded by a row of other electrodes, the said other electrodes comprising main electrodes, first guide electrodes and second guide electrodes, one or more main electrodes being connected through respective capacitor-resistor networks to a first supply point in the circuit, the remaining main electrodes are divided into three or more groups of two or more electrodes each, instead of into two groups, to increase the stepping speed. All the electrodes within a group are connected together and each group is connected through a respective capacitor-resistor network to the said first supply point or to a second supply point in the circuit.
Patent GB-478646-A (GB)
Title: Improvements relating to the suppression of high frequency electrical disturbances
IPC: H04B15/02
Filed: 1936-07-18
Abstract: 478,646. Protective arrangements. BRITISH ELECTRICAL & ALLIED INDUSTRIES RESEARCH ASSOCIATION, and DANIEL, L. H. July 18, 1936. No. 19991. [Class 38 (iv)] In arrangements for sumppressing high frequency electrical interference caused by the influence of a dynamoelectric machine or other electrical apparatus, the terminals of the machine are bridged by a condenser 4, and between the frame 6 of the machine and one or both of its terminals 2, 3 is connected one or more electrical filters 13 which comprise an inductance 15 and a capacity 16 and present a low impedance to currents of certain high frequencies and a high impedance to currents of power -supply frequency. When only one terminal 3 is connected to the frame 6 through a filter 13, the other terminal 2 may be connected to 6 through a condenser 14. Specification 478,693 is referred to.
Patent GB-741777-A (GB)
Title: Improvements in and relating to revolution indicators
Inventor: BENTLEY JAMES SYDNEY
IPC: G06M1/06
Filed: 1953-07-18
Abstract: 741,777. Counting-apparatus; indicating- apparatus. TELEFLEX PRODUCTS, Ltd. July 9, 1954 [July 18, 1953], No. 19991/53. Classes 106 (1) and 106 (4). [Also in Group XXIX] A revolution indicator comprises a spindle, an eccentric carried by said spindle, a toothed satellite gear-wheel mounted on said eccentric, an internally-toothed annulus having a greater number of teeth than the satellite mounted on the spindle and driven by the satellite which is prevented from rotating and a pointer or the like moving with the annulus and co-operating with a fixed scale, dial or the like. The casing 7, Fig. 2, is fixed to the spindle 19 to which is fixed an eccentric sheave 15 supporting a satellite gear 16. A quadrant member 12 is mounted on the spindle 19. A forked arm 17, Fig. 3, fixed to the gear 16 passes through a slot 14 in the weighted end 13 of the quadrant member 12 and engages a pin 33 fixed thereto. The gear 16 is thus prevented from rotating but drives a crown-toothed gear 21 through one tooth for every revolution of the shaft 19. A pointer 24 fixed to the boss 20 of the gear 21 moves over a dial 23 fixed by screws 36 to the weighted member 12, 13. A glass 26 is retained in the casing 7 by means of a bezel 25, a packing ring 37 and retaining ring 28. A pointer 29 may be attached to the end of the spindle 19 or marked on the glass 26. The casing 7 may, for example, be attached to the hand-wheel of a steam valve.
Patent GB-1138102-A (GB)
Title: Coating compositions and lithographic plates coated therewith
IPC: G03G5/024
Filed: 1967-05-02
Abstract: 1,138,102. Printing plates. MEAD CORP. 2 May, 1967 [12 May, 1966], No. 20189/67. Heading B6C. [Also in Divisions B2, C3 and H1] Lithographic plates comprise a support material bearing a hydrophilic base-coating comprising zinc oxide, an inert filler, ammonia neutralized polyacrylic acid and a styrenebutadiene copolymer. The support may be paper, fibre-board, a textile fabric, plastic sheet stock or a metal strip. The inert filler may be clay, talc, diatomaceous earth, satin white or silica. There may also be included in the coating ammoniacal zinc acetate, sodium hexametaphosphate and calcium stearate. The coating can be readily top coated with conventional lithographic coatings. Good results are also obtained with the use of magnetic inks.
Patent GB-144144-A (GB)
Title: Improvements in hygrometers actuated by animal or vegetable fibre
IPC: G01N19/10
Filed: 1919-08-18
Abstract: 144,144. Halliwell, F. L. Aug. 18, 1919. Hygrometric apparatus. -Hygrometers of contracting-fibre type are provided with means of setting to zero without altering the tension and of limiting the indicator movement. A hygroscopic fibre D is fixed to two levers A, E. To lever E is fixed a string F passing round axle G of an indicating-hand H and attached to a spring J secured to lever A. By means of a screw B, the lever A can be adjusted to bring the indicator to zero of the scale. The lengths of the arms of lever E can be varied to adjust the limits of movement of the indicator, and by a suitable angular setting of the lever E, the non-uniform expansion of the fibre D can be componsated for to a certain extent.
Patent GB-347964-A (GB)
Title: Improvements in and relating to vibration damping devices particularly for turbines, propellers and the like
IPC: B64C11/00
Filed: 1930-07-04
Abstract: 347,964. Turbine blades. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Kimball, A. L. ; 1546, Wendell Avenue, Schenectady, New York, U.S.A.) July 4, 1930, No. 20332. Convention date, July 5, 1929. [Class 110 (iii).] A device for damping lateral vibrations of turbine blades comprises a rod 8, which has a natural frequency of vibration higher than that of the turbine blade 5, and which is rigidly fixed by the part 9 to the base of the blade. The rod extends into a hole 6 bored in the blade and is surrounded by a fluid. The rod 8 may be tapered and may have the end in the form of a cup 11. Fig. 4 shows the rod fixed by a base 23 in a hole 6 bored out of a propeller blade 12.
Patent GB-937482-A (GB)
Title: Improvements in foldable shelving for storage cabinets
IPC: F25D25/02
Filed: 1962-05-28
Abstract: 937,482. Folding shelves. LICENTIA PATENT-VERWALTUNGS G.m.b.H. May 28, 1962 [June 26, 1961], No. 20452/62. Class 52 (1). A foldable shelf 3 is supported and guided in slots 4 in the walls of a cabinet, e.g. a refrigerator 1 and is split and jointed on a line 5 extending from front to rear thereof so that it can only be folded by movement of the joint in an upward direction. The joint 5 may comprise a hinged mortise and tenon (Fig. 2, not shown) arranged so that opposed shelf portions support each other to prevent downward collapse of the shelf. Alternatively (Fig. 3, not shown), the joint 5 may comprise a downwardly open U-clamp pivotally connected to the spaced ends of the shelf frame portions.
Patent GB-1310636-A (GB)
Title: Windscreen wiper for curved windscreens
IPC: B60S1/38
Filed: 1971-04-19
Abstract: 1310636 Windscreen wiper SWF SPEZIALFABRIK FUER AUTOZUBEHOR GUSTAVRAU GmbH 19 April 1971 [29 Jan 1970] 20517/71 Heading A4F A windscreen wiper for curved windscreens comprises a main pressure distributing arm 10 adapted to be secured to a wiper arm and two further arms 12, 16 adapted to carry a wiper blade, the main pressure distributing arm and the two further arms being secured together by a common pivot pin 15 and the two further arms are biased together by means of a helical spring 18 mounted about the common pivot pin, the two arms of the helical spring 19, 20 acting under tension on the surfaces of the further arms which surfaces in use are remote from the blade.
Patent GB-1353273-A (GB)
Title: Overload safety device for ploughs
IPC: A01B61/04
Filed: 1972-05-03
Abstract: 1353273 Overload devices on ploughs O BRENIG [trading as KARL & JOSEPH BRENIG] 3 May 1972 20663/72 Heading A1B A plough has an overload safety device which permits a plough bottom to deflect in any of several directions on encountering an obstacle and which comprises a casing rigidly fixed to the plough's frame, a polygonal plate rigidly attached to a beam carrying the plough bottom and guided inside the casing and a biasing means that urges the plate against stops inside the casing. In a preferred embodiment, a reversible plough has two overload devices 2, each respectively connected to a beam 5 carrying double plough bottoms 6 and to a frame (4) Fig. 2 (not shown) which rotates about a horizontal selector axle 3. Each device 2 comprises a rectangular housing 7 containing a yieldable biasing means 8 which acts against a plate 9 connected to the forward end of the associated beam 5. The biasing means can be a hydraulic, pneumatic or hydropneumatic cylinder or alternatively, a helical spring of flat section steel, a pack of plate springs, a spring of resilient rubber to be material, e.g. cellular polyurethane or a hollow rubber spring. The biasing means 8 normally urges the bottoms 6 into the selected working position but yields to allow the tool to move in both horizontal and vertical directions on encountering an obstacle. The biasing force of the device 8 may be adjusted by means of stops 10 onto which the plate 9 is urged.
Patent GB-499360-A (GB)
Title: Improvements in or relating to friction clutches
IPC: F16D13/71
Filed: 1938-07-12
Abstract: 499,360. Friction clutches. BORG & BECK CO., Ltd. July 12, 1938, No. 20670. Convention date, Feb. 3. [Class 80 (ii)] A spring - engaged plate clutch is disengaged by radial levers 34 which are guided in radial slots 37 formed in the annular body portion 18 and extending to the rim portion 19 of a drawn sheetmetal cover plate secured to the driving member 10 by a flange 20, the levers being fulcrumed at their outer hooked ends 38 on the edges 36 of the run exposed by the slots 37, whereby the reaction is transmitted directly to and through the rim 19, so as to obviate distortion of the cover plate. Rods 39, secured to the pressure plate 15, pass through apertures in the levers 34, which latter are channel-shaped sheet-metal stampings, and each carries a nut 45 holding knife-edged projections 43 of a stamped washer 44 in engagement with an indentation 42 formed in the web of the associated lever. The inner rounded end 35 of each lever engages a radial ear 32 of a drawn sleeve 30 fixed on a slidable control sleeve 29. Stiffening ribs 33 struck from the sleeve 30 engage slots in the lever ends. The drawn sheet-metal pressure plate 15 has outer and inner strengthening flanges 16 and 17, lugs 23 extending from the flange 16 into apertures 24 in the plate 18 to provide a driving connection. Radial indentations 49 in the plate 18 register with the slots 37. The edges 36 may be sheathed with wear plates 48, Fig. 5.
Patent GB-1181802-A (GB)
Title: Lifting Frame
Inventor: WHITE ALAN RALPH
IPC: B60P1/64
Filed: 1967-05-04
Abstract: 1,181,802. Lifting frames for containers. ALEXANDER STEPHEN & SONS Ltd. 6 May, 1968 [4 May, 1967], No. 20717/67. Heading B8H. A lifting frame for containers has one set of couplings 12 for smaller containers mounted higher than a second set of couplings 14 for larger containers. A third set 14 may be provided. The frame may be supported by a carrier vehicle as described in Specification 1,181,801 on lifting-rams 2.
Patent GB-1365824-A (GB)
Title: Multi layer circuit
IPC: H01L23/538
Filed: 1972-05-04
Abstract: 1365824 Printed circuits SIEMENS AG 4 May 1972 [6 May 1971] 20726/72 Heading H1R In a thick film printed circuit board, contact areas, for receiving a semi-conductor module are arranged over a combination of layers chosen so that all contact areas are at the same height and some of the conductor paths of the circuit board pass under the module. As described an aluminium oxide substrate is printed with parallel conductor paths and spots at any point underlying a contact area. An insulating layer is then applied with gaps at points where through connections are required. Further conductor paths are then applied substantially at right angles to the first conductor paths and contact areas are additionally provided where necessary. Various orders of layers are described, resulting in the same height of contact area and further contact areas may be provided away from the modules for test purposes.
Patent GB-245481-A (GB)
Title: Improvements in and connected with relief valves for steam generators of ships or other installations
IPC: F16K17/10
Filed: 1924-09-03
Abstract: 245,481. Bruce, W. J. W. Sept. 3, 1924. Safety-valves.-An automatic blow-off valve for steam generators comprises a main valve 10 which is in direct communication with the generator and which is actuated by a piston 13, the supply of steam to the cylinder 14 of which is controlled by a pilot valve. The pilot valve communicates with either side of the main valve and is adapted to be operated by a hand lever. Specification 22176/12 is referred to.
Patent GB-980381-A (GB)
Title: Improvements in and relating to electrical connections
Inventor: MATTHEWS LESLIE REGINALD
IPC: H02G15/04
Filed: 1960-06-14
Abstract: 980,381. Electrostatic screens for couplings. ENGLISH ELECTRIC CO. Ltd. May 17, 1961 [June 14, 1960], No. 20803/60. Heading H2E. The screening wires 12 surrounding an electric cable 11 are terminated by fitting a flanged ferrule 14 over the end of the cable 11, folding the wires 12 over the outside of the ferrule 14 and clamping them thereon by an outer ferrule 15. The ferrules 14 and 15 are each made of conductive material. The ferrule 14 has a flange 14a over which the outer ferrule 15 is crimped (Fig. 5, not shown). The termination is enclosed in a P.V.C. sheath. If the screening is braided it is first combed out into the individual strands. If the screening is to be connected to an adjacent screening one of the wires 12<SP>1</SP> after being laid back across the flange are then brought forward again as shown.
Patent GB-314239-A (GB)
Title: Improvements in the manufacture and production of fuel gas and similar combustible gases and apparatus therefor
IPC: C10J3/46
Filed: 1928-07-18
Abstract: 314,239. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). July 18, 1928. Addition to 214,544. Producers.-In a gasification process of the kind described in the parent Specification and modified in Specifications 279,316, 296,713, 296,751 and 310,686 in which gases are blown through small sized ignited fuel with sufficient force to establish strong agitation of the charge, the gasifying medium is preheated in refractory structures arranged over the fuel bed and heated by the waste heat of the generated producer or water gas. Hollow members C are arranged over the charge A which is introduced through a pipe K and is supplied with air or steam through conduits D, the hot gasifying media impinging from above on to the fuel bed. Part of the gasifying medium is also introduced through a pipe F. Such a preheater may also be placed in the upper part E of the producer shaft with a solid heat accumulator underneath. In each gas making period the fresh charge of coal admitted through a conduit L is allowed to descend over the heated accumulator by which it is dried and partially gasified.