baber/WOPTO huggingface dataset:
Patent GB-923094-A (GB)
Title: Improvements relating to etching solutions
Inventor: DOWNEY THOMAS ANTHONY
IPC: C23F1/46
Filed: 1961-07-10
Abstract: 923,094. Etching. CHAS. PFIZER & CO. Inc. July 10, 1961, No. 24847/61. Class 100 (2). A method of regenerating an etching liquid containing citric acid, and which may also contain glycolic acid, which is being used to treat a metal which is predominantly iron, comprises contacting the liquid with a cationic ion exchange resin, such as a sulphonated polystyrene type or carboxylic acid type resin, to remove ferrous ion and increase the relative proportion of ferric ion and ferric citrate chelate ion. Specification 793,190 and U.S.A. Specifications 2,191,853, 2,319,359, 2,333,754, 2,340,110, 2,340,111 and 2,518,420 are referred to.
Patent GB-518525-A (GB)
Title: A process for the recovery of metal from compound sheet material
IPC: C22B7/00
Filed: 1938-08-24
Abstract: 518,525. Recovering metals. JUNKER, E., and LEITGEBEL, W. Aug. 24, 1938, Nos. 24870 and 24871. Convention dates, Aug. 27, 1937, and Nov. 6, 1937. [Class 82 (i)] Metal is recovered from compound or laminated sheets of an organic material coated with metal, such as paper coated with metal foil, or metal sheets laminated with gutta percha, rubber, cellulose acetate, or other plastic materials, by treating the sheets with steam or hot water or both, optionally under pressure, and during or after such treatment subjecting the sheets to beating or other mechanical treatment with or without subdivision or tearing, to disintegrate the paper &c. the components being then separated as by sifting, centrifuging, filtering &c.
Patent GB-980096-A (GB)
Title: Traversing mechanism on ring-twisting and ring-spinning textile frames
IPC: D01H1/36
Filed: 1962-06-28
Abstract: 980, 096. Lifter rail traverse arrangements in ring spinning &c machines. BARMER MASCHINENFABRIK A.G. June 28, 1962 [June 30, 1961], No. 24871/62. Heading D1D. A lifter rail traversing mechanism in a ring frame wherein the lifter rail is actuated through flexible elements has each flexible element guided as an open loop over a fixed roller with its ends fixed to a reciprocable traverse rod that extends over the entire length of the machine. The flexible elements may be belts or bands fixed to supports 5 on the ring rail 4 and by clamping rings 10, 11 to the traversing rod 13. Springs 14 are arranged to aid in lifting the ring rail.
Patent GB-662139-A (GB)
Title: Improvements relating to the oxidation of aromatic side-chain compounds
IPC: C07C51/275
Filed: 1948-09-23
Abstract: Aromatic compounds are oxidized with nitric acid of 10 to 35 per cent strength above 150 DEG  C., the side chains being converted into carboxyl groups, the pressure being at least 15 atmospheres for compounds with one oxidizable side-chain and at least 25 atmospheres for compounds with a plurality of oxidizable side-chains.  The preferred temperature range is 165 DEG  to 220 DEG  C. and the preferred pressure ranges 30 to 50 and 50 to 100 atmospheres for the oxidation of one or more side chains respectively.  The more dilute acid may be used in excess of the theoretical amount but with acid of higher concentration the quantity is preferably reduced to not more than theoretical.  To avoid corrosion and formation of by-products, the nitric acid should be consumed as quickly as possible, e.g. by using excess of the aromatic compound and adding the necessary acid in portions at intervals.  Alternatively, the mixture of reactants in the correct proportion may be introduced into the autoclave a portion at a time, and in this way the process may be operated continuously, the gases being discharged continuously or intermittently to maintain the pressure at a safe value.  The process is applicable to aromatic hydrocarbons with one or more side-chains, and to their substitution derivatives, e.g. chloro and nitro compounds, which give chlorocarboxylic and nitrocarboxylic acids respectively.  The examples describe the batchwise oxidation of p-xylene to terephthalic acid and the three nitrotoluenes to nitrobenzoic acids, some picric acid being obtained from o-nitrotoluene.  The continuous oxidation of toluene is also described, the products being benzoic and p-nitrobenzoic acids; a method is given for the separation of these. Chlorotoluenes, o-xylene and p-cymene are also specified as starting materials.  German Specification 216,091 and U.S.A. Specification 1,576,999 are referred to.  In the Specification as open to inspection under Sect. 91, it is stated that concentrated nitric acid may be used in excess of the theoretical amount, when nitration occurs in addition to oxidation; the use of 50 per cent acid is mentioned.  The operating pressure may be any superatmospheric pressure.  Further examples are given of the oxidation of o-xylene to phthalic acid, p-cymene to terephthalic acid and the three chlorotoluenes to the corresponding chlorobenzoic acids.  This subject-matter does not appear in the Specification as accepted.
Patent GB-248971-A (GB)
Abstract: 248,971. Br³gger, J. May 28, 1925. Matches.-In a conveyer for a match-making machine which has superposed races arranged over baths of paraffin and igniting substance in a drying stand, and in which grooved elevators are provided which receive the match-carrying plates at the end of each race and raise them in a vertical straight line to the inlet of the next race, safety plates are arranged above the elevator grooves and guides are positioned along the path of the elevators to adjust the match plates. The drying stand comprises inclined races 11 - - 21 along which the plates are successively pushed by means of tappets 24, 25 on two beams 22, 23, one at each side of the stand. The pusher beams are connected by links 26, 27 and operated from a camshaft (not shown). An elevator for raising the plates is arranged at each end of the stand and comprises two bars 40, Fig. 3, having grooves 41 which receive a plate 42 and raise it to the level of the next race, the elevators being caused alternately to rise and fall by means of links 38, 39 attached to levers 33, 36 pivoted to standards 34, 37, and operated from the camshaft. The tapering edge 45 of a guide 44 at the end of a race ensures that the plate is pushed completely into the grooves of the elevator bars, and arranged above the grooves are safety plates 65, having a tapered lower edge, which block the outlet of the races as the elevators move downward. The matches are dipped in paraffin in a rocking pan 70 and are tipped with igniting substance spread on a rotatable annular table 62, the smaller diameter of which is larger than the whole width of the machine to facilitate restoration of igniting substance and removal of dropped splints Two upsetting devices are provided in one of the races to cause the matches to be carried for a while in inverted position in order suitably to shape the igniting head.
Patent GB-1459687-A (GB)
Title: Method of breaking down oi-water emulsions
IPC: C10G33/00
Filed: 1974-06-05
Abstract: 1459687 Oxidation of oil-water emulsions INST NEFTEKHIMICHESKIKH PROTSESSOV IM AKAD JUG MAMEDALIEVA AKAD NAUK AZERBAIDZHAN SSR and TSEKH M I PROIZVODSTVENNYKH RABOT PO RAZRABOTKE PROIZVODSTVU I VNEDRENI JU REAGENTOV OBIEDINENIA KASPMORNEFT 5 June 1974 24902/74 Heading C1C [Also in Division C5] Oil-water emulsions are separated by passing air or oxygen through a batch of the emulsion in a container in the absence of added demulsifying agent until breakdown of the emulsion occurs as a result of the oxidation of the natural emulsifier components of the oil and then allowing the broken emulsion to settle into oil and water layers. In examples emulsions of tar-containing oils are heated to 40-70‹ C. and 0À1-10 Nm.<SP>3</SP> of air is bubbled through each cubic metre of emulsion.
Patent GB-1342817-A (GB)
Title: Axial bearing
IPC: F16C32/06
Filed: 1971-04-19
Abstract: 1342817 Bearings SKF INDUSTRIAL TRADING & DEVELOPMENT CO BV 19 April 1971 [2 March 1970] 24939/71 Heading F2A  A vertical shaft 10 is supported by two bearing members 14, 15 carried on the shaft which engage with corresponding surfaces 12, 13 in a housing, there being at least one hydrostatic bearing pocket 23, 24 provided in each engaging pair of bearing surfaces, the bearing members on the shaft being axially adjustable relative to one another by a piston 25 displaceable in a cylinder 17 under the action of fluid supplied to the piston through a connection 30, 31 to a pocket in one of the pairs of bearing surfaces. The surfaces of the two bearing members may be part spherical, the spheres being concentric on a point 22 on the longitudinal axis of the shaft.
Patent GB-351810-A (GB)
Title: Manufacture of boric acid
IPC: C01B35/10
Filed: 1930-08-20
Abstract: To a hot solution of sodium sulphate and bisulphate, borax in any degree of hydration is added to give a highly concentrated liquor which is boiled, decanted from deposited sodium sulphate, and treated with sufficient sulphuric acid to precipitate boric acid, a further yield being obtained on cooling to 30 DEG  C., and to convert part of the sodium sulphate into bisulphate.  The mother liquor is used for a further charge.
Patent GB-1253625-A (GB)
Title: Sheet handling method and apparatus
IPC: B65H3/62
Filed: 1969-05-16
Abstract: 1,253,625. Feeding sheets. WINDMOLLER & HOLSCHER. 16 May, 1969 [25 May, 1968], No. 25038/69. Heading B8R. Sheets are separated from the bottom of a pile W by a suction belt 9 passing over a suction box 10 moving the belt against the pile when a sheet is to be separated, and separation is facilitated by vibration of the magazine 1, which is supported on elastic rubber blocks 3, by means of a revolving eccentrically mounted weight 5. The belt 9 feeds the sheets between rollers 13, 14 and over a more slowly moving chain 16 carrying registering abutments 15.
Patent GB-334049-A (GB)
Title: Apparatus for severing a circumferential spue fin from a moulded spherical article of rubber, gutta percha or like material
IPC: B26D1/00
Filed: 1929-08-16
Abstract: 334,049. India Rubber, Gutta Percha & Telegraph Works Co., Ltd., and Brown, F. E. Aug. 16, 1929, Traversing - cutter machines. - The central mould sprue fin on golf balls or other spherical or partly spherical articles is trimmed off by a revolving knife 22 adjustably mounted on a spindle 6 driven by belt pulley 10. The ball is placed in a cup 27 and treadle rod 73 is operated to rock lever 67 the fork 68 of which moves clutch sleeve 66 into engagement. The clutch is held in engagement by the lever end-roller 77 being held depressed by the flange 76 of clutch sleeve until a complete revolution is made when the gap 78 in the flange 76 allows roller 77 to slip up into it so that the lever 67 is rocked back by spring 75 and clutch is withdrawn. While the clutch is in operation cams on the shaft 53 are driven, one cam operating arm 39 to move the slide 26 and work holder below the knife 22, the other cam rocking arm 40 to lower the knife spindle 6 to bring the spring-pressed clamp 34 into contact with the top of the ball and then allow the knife to rotate round the ball, cutting off the sprue fin. The ball holder has a circumferential groove to allow for the tip of the knife and an edge on which the fin rests. The knife makes an angle of about 2‹ with the tangent to the ball. The ball is ejected by a pusher 79 which is actuated by a lever 83 rocked by the slide when being returned to its starting position, the slide being arranged to overrun its position of rest to cause ejection and then return slightly to allow a fresh ball to be received. A number of ball cups may be arranged around a table, which may be indexed to bring each ball in turn under the knife.
Patent GB-465707-A (GB)
Title: Improvements in or relating to coin-freed or coin-operated mechanisms
IPC: G07F1/00
Filed: 1936-09-14
Abstract: 465,707. Coin - freed apparatus. BINGHAM, J. H., and METROPOLITAN GAS METERS, Ltd. Sept. 14, 1936, No. 25075. [Class 27] Returning coin.-Relates to coin-freed or coin-operated mechanism having at least two slots for receiving coins of different values and diameter, the slots being associated with coin co-operative means which are rendered effective to free or operate the mechanism, and the coins, after freeing or operating the mechanism, falling by gravity into a moneybox. According to the invention and as applied to prepayment meter mechanism described in Specification 462,207, there is interposed in the path of the larger coin (penny) between the coin slot unit 1 and the money-box 10 a segregating device 8 consisting of inclined lands 9 which deflect a penny falling down a shoot 7 past a hopper 12 to the money-box. If a shilling be inserted in the penny slot 3, this coin falls straight through the coin-operated unit 1 and passes between the inclines 9 to the hopper 12 from which it is led by a shoot 13 to an opening 14 and returned.
Patent GB-1472301-A (GB)
Title: Electric switches
IPC: F02D21/08
Filed: 1974-06-06
Abstract: 1472301 Exhaust gas recirculation ROBERT BOSCH GmbH 6 June 1974 [7 June 1973] 25108/74 Heading F1B [ Also in Division H1] A rotary cam switch is coupled to the spindle of a butterfly valve (not shown) in the induction manifold of an internal combustion engine to control an exhaust gas feedback system in dependence upon the angular position of the valve. The cam plate 10, Fig. 1, is drivingly coupled to a sleeve 3 secured to the valve spindle (not shown) via a finger 7 integral with the sleeve 3 which projects into a cut-away portion 8 in the cam plate 10. A radial projection 11 of the cam engages a feeler 12 on a snap-action spring blade arm 14 to operate contacts 15, 16, controlling an electromagnetically operable injection valve for the exhaust gas feedback system. The circumferential length of the projection 11  renders the exhaust gas feedback system effective in the part load operating range only and cuts it off when idling or under full load. The cam plate 10 has a further cam slot 25 engageable with a follower 26 to move a spring blade contact 22 step-wise between fixed spring blade contacts 18, 19, through an intermediate non-contacting position.
Patent GB-1045283-A (GB)
Title: Method of forming resin lining inside a metal pipe and apparatus therefor
IPC: B05D7/22
Filed: 1963-06-25
Abstract: 1,045,283. Method and apparatus for lining pipes. DAI-ICHI KOSHUHA KOGYO CO. Ltd. June 25, 1963 [April 11, 1963], No. 25186/63. Heading B2B. A method of forming a resin lining inside a metal pipe comprises the steps of rotating the pipe about its axis, feeding a quantity of resin compound into the pipe, and heating a portion of the pipe externally by a heating means so as to melt the resin compound therein and simultaneously moving the pipe and heating means axially relatively to each other, such that the heating means is moved from one end of the pipe to the other end thereof while the pipe is being rotated, whereby the pipe is spirally lined with resin, turns of the resin being overlapped so as to form an even lining. In an example a pipe is lined with polyethylene. As shown, a pipe is held between caps 8 and resin is fed from hopper 11 via conveyer 12. The pipe is rotated by motor 13 while heating means 3 followed by cooling means 4 are moved from top to bottom of the pipe. Excess resin flows out via duct 17 to receiver 18.
Patent GB-717509-A (GB)
Title: A new and improved pressure regulator for fluids
IPC: G05D16/06
Filed: 1951-10-29
Abstract: 717,509. Fluid-actuated valves. KROMSCHRODER AKT.-GES., G. Oct. 29, 1951 [Nov. 16, 1950], No. 25236/51. Class 135 A pressure regulating valve comprises a housing a, Fig. 1, with inlet b and outlet c, and a closure member f movable relatively to a seat g by a diaphragm o connected to the member by links n, m, k, i, h, and subjected to the pressure on the downstream side of the closure member. A bellows d connects member f to a baffle e in the inlet whereby variations in the inlet pressure have no effect on the bellows and closure member. The interior of the bellows is connected by passages h<SP>1</SP>, h" to the throat of a Venturi passage through the seat g whereby movement of the closure member away from the seat, by action of the diaphragm, causes an increased flow through the Venturi which reduces the pressure within the bellows. The bellows thus contracts slightly to increase the opening movement of member f. The opposite effect is obtained when the diaphragm moves the member towards its seat. In alternative constructions, the Venturi is omitted, and the bellows balances the closure members as regards variations of both inlet and outlet pressure. Thus, e.g., the closure member y, Fig. IIIa, is attached by bellows d to baffle e and co-operates with seat x, movement of the diaphragm being transmitted through link z. It is stated that by making the closure member of a diameter different from that of the bellows, the valve can be given a tendency to increased opening or to increased closing with increasing inlet or outlet pressure acting thereon. A closure member p on link n is engaged by the diaphragm under the action of spring u and constitutes a safety valve, the diaphragm moving off member p to release the outlet pressure should this rise above a predetermined value.
Patent GB-963237-A (GB)
Title: Bottle crate
Inventor: BOUCHER-GILES ARTHUR FRANCIS
IPC: B65D85/30
Filed: 1962-07-04
Abstract: 963,237. Bottle crates. BOUCHER-GILES & CO. Ltd. June 28, 1963 [July 4, 1962], No. 25562/62. Heading B8P. A wire lattice-work for a bottle crate comprises upper and lower wires 10, 11 and vertical wires 12 which slide into grooves 17 in a wooden crate and are retained in position by outwardlyextending portions 20 engaging beneath the side walls. A gap 19 may extend across the base 18 to accommodate the wires 20. The wires 10, 11 are cranked at 13, 14 into a shallow " V formation. The vertically extending parts of the lower wires 11 are welded at 15 to the vertically extending parts 12 of the upper wires 10.
Patent GB-903538-A (GB)
Title: Improvements in or relating to electric circuits for detecting changes of predetermined amount in the quantised values of variable quantities
Inventor: POPE BERNARD WALTER
IPC: H03M7/16
Filed: 1960-07-22
Abstract: 903,538. Electric selective-signalling systems. GENERAL ELECTRIC CO. Ltd. June 7, 1961 [July 22, 1960], No. 25602/60. Class 40 (1). A circuit for producing an output each time a digital input changes by a predetermined increment comprises electromagnetic relays and a stepping switch. The circuit described, Fig. 1, receives, in parallel form, a three decimal-digit number on terminals 1 to 12 and whenever the input number increases or decreases by an increment of five units an output at a terminal 13 is produced, which is used to control a printer to cause the instantaneous value of the input number at that time to be printed. The input signals control relays UA to CD, which, in turn control a further relay AA which results in one of four leads 16, 17, 18 and 19 being marked each time the input is a multiple of five, and the arrangement is such that these leads 16, 17, 18 and 19 are marked successively and cyclically in this order as the input increases and in the reverse order as it decreases. These leads are connected cyclically to two banks BW1 and BW2 of a rotary switch, the connections to bank BW2 being displaced by two contacts with respect to these to bank BW1, and these two wipers control a forward stepping relay FW and a backward stepping relay BK respectively. Thus, whenever, the input number increases by five the wiper of bank BW1 is marked and the switch advances one step, giving an output on terminal 13, and when the input decreases by five the wiper of bank BW2 is marked and the switch steps back one step and an output is produced on terminal 13.
Patent GB-1246742-A (GB)
Title: Combustion regulator
IPC: F23N1/02
Filed: 1969-05-20
Abstract: 1, 246, 742. Combustion regulator for steam boilers. KOCKUMS MEKANISKA VERKSTADS AB. May 20, 1969 [May 20, 1968], No. 25716 /69. Heading G1N. The steam turbine of a ship's propulsion system is fed with steam from a starboard and port side boiler installation, whose outputs are maintained equal, to provide the steam pressure requested by the position of the slider of a control potentiometer, any difference between the actual and desired values of steam pressure producing an error signal which is used to modify the fuel and air inputs to the two boilers. The system contains facilities for simulating a high power or low power demand. The oxygen content of the flue gases may also be measured to produce a signal which is used to augment the control of the air input to the boilers.
Patent GB-1522788-A (GB)
Title: Spark plug having two electrically isolated centre electrodes
IPC: H01T13/04
Filed: 1977-06-21
Abstract: 1522788 Spark-plug CHAMPION SPARK PLUG CO 21 June 1977 [21 June 1976] 25814/77 Heading FIB [Also in Division H2] In a spark-plug having two separate insulated electrodes 14, 15 the connector means 44, 48 are arranged to fit entirely within bores 33, 34 in the spark-plug insulator 13. As shown, an electrically insulating resilient boot 55 is fitted over the end 25 of the plug insulator and the boot resiliently engages and holds the cables 56, 57. A ribbed pattern (not shown) may be formed on the insulator body 24 adjacent the end 25. The connectors 44 and 48 may be replaced by compression spring contacts attached to the conductors 58.
Patent GB-994636-A (GB)
Title: Method of inhibiting spontaneous oxidation of uranium dioxide powders
Inventor: CARTERET YVETTE
IPC: C01G43/025
Filed: 1961-07-17
Abstract: Uranium dioxide is stabilized towards spontaneous oxidation by contacting with an inhibitor which may be carbon dioxide, ammonia, water, carbon tetrachloride, and alcohols, ketones, or hydrocarbons having a vapour pressure in excess of 10 mm. at standard temperature and pressure, under conditions such that the ratio of the pressure of the inhibitor p at the time of contact, to its saturation vapour pressure po, in the case of those which are liquid at normal temperatures, or the liquefaction pressure at the absorption temperature, in the case of vapours, is not less than 0.05 and preferably not greater than 0.2 in cases of gaseous inhibitors.  The treatment may be effected by condensing a liquid inhibitor on to the powder, contacting with pure inhibitor gas, circulating a gas containing a mist of inhibitor or saturated therewith, through a layer of powder.