baber/WOPTO huggingface dataset:
Patent GB-384662-A (GB)
Title: Improvements in or relating to the production of sulpho-cyanide compounds
IPC: C01C3/20
Filed: 1931-05-22
Abstract: Thiourea is obtained by heating metal cyanides such as calcium cyanamide in admixture with sulphur or substances containing free or combined sulphur, the combined sulphur being in the sulphidic condition and hydrogen being present in the form of water, hydrogen sulphide or the like, at a temperature below 150 DEG  C, say 100-130 DEG  C.  The thiourea ether directly or after extraction is thereupon converted into sulpho cyanide compounds by heating at 150-250 DEG  C. The sulphur containing materials referred to are calcium sulphide, alkali or alkaline earth metal hydrosulphides or substances which by interaction are able to form them alone or together with sulphur, alkali sulphides if desired in conjunction with hydrogen sulphide, mixtures of solutions containing calcium hydrosulphide and alkali hydrosulphides or sulphates, and used gas-purification material. Alkali or alkaline-earth oxides or other alkali or alkaline earth metal compounds, for example in the form of waste lyes from prussian blue manufacture containing alkali sulphates, may be added to the initial mixture.  The initial mixture may also contain sufficient water to make the mass crumbly.ALSO:Sulphocyanide compounds are obtained by heating metal cyanamides such as calcium cyanamide in admixture with sulphur or substances containing free or combined sulphur, the combined sulphur being in the sulphidic condition and hydrogen being present in the form of water, hydrogen sulphide or the like, at a temperature below 150 DEG  C. to produce thiourea, the thiourea, either directly or after extraction, being thereupon heated to a temperature of 150-250 DEG  C.  Ammonia is also produced in the process.  The sulphur containing materials referred to are calcium sulphide, hydrosulphides of the alkali or alkaline-earth metals or substances which by interaction are able to form them alone or with sulphur, alkali sulphides if desired in conjunction with hydrogen sulphide, mixtures of solutions containing calcium hydrosulphide and alkali hydrosulphides or sulphates, and used gas-purification material.  Alkali or alkaline-earth oxides or hydrates may be added to the initial mixture which may also contain sufficient water to make the mass crumbly.  Small amounts of alkali or alkaline-earth metal compounds, for example in the form of the waste lyes from prussian-blue manufacture containing alkali sulphates, may be added to promote the reactions.  The products resulting from the process are lixiviated to recover the sulphocyanide compounds.  According to examples, (1) a mass consisting of calcium cyanamide, pulverized sulphur and sodium hydrosulphide solution is heated first at 130 DEG C. and then at 180 DEG  C.; (2) a mass consisting of calcium cyanamide admixed with calcium hydrosulphide solution is heated first to 105 DEG  C. and then to 180 DEG  C.; (3) a mixture of calcium cyanamide with used gas-purification material containing sulphur and lime is heated at 100-105 DEG  C. and then at 180 DEG  C.
Patent GB-292140-A (GB)
Title: Improvements relating to the desensitising of photographic plates or films
IPC: G03C5/32
Filed: 1928-05-23
Abstract: 292,140. I. G. Farbenindustrie Akt.- Ges. June 15, 1927, [Convention date]. Desensitizing. - Plates or films coated with silver bromide emulsion are desensitized by treatment with an iso-phenosafranine, which does not stain the fingers or clothes of the operator. A 1/5000 strength aqueous solution of either 1: 3- iso-phenosafranine (1: 3-diamino-phenyl-phenazonium chloride) or 2: 3-iso-phenosafranine (2 : 3- diamino-phenyl-phenazonium nitrate) may be used before development or 5 cc. of either solution may be added to 100 cc. of the developer, desensitizing taking place in either case in one minute.
Patent GB-834783-A (GB)
Title: Improvements relating to apparatus for controlling the continuous casting of metals
Inventor: HALLIDAY IAIN MACDONALD DEWAR
IPC: B22D11/20
Filed: 1955-05-26
Abstract: 834,783. Continuous - casting machines. UNITED STEEL CO.'S Ltd. May 22, 1956 [May 26, 1955], No. 15243/55. Class 83 (1). [Also in Group XXXVI] Apparatus for determining the level of liquid-metal in a continuous-casting mould comprises an A.C.- energized transformer 17 surrounding the mould 1, whose secondary output voltage is indicative of the level 16 of the molten-metal and may be used to control the rate at which the casting is withdrawn by rollers 7. The control may be manual, from visual indications, or automatic, in which case the speed of rolls 7 or the rate of pouring may be varied through a servo-mechanism. The secondary winding voltage is preferably opposed by that from a third winding, so that only changes in voltage are indicated, and changes due to variation of temperature are compensated, the length and position of the two windings being such as to give a desired output characteristic. The mould 1 is of copper and is surrounded by a jacket 8 of austenitic steel, to which cooling water is supplied at 10 and removed at 15. The castmetal may be ferrous or non-ferrous. Specification 693,267 is referred to.
Patent GB-129521-A (GB)
Title: Improvements in or relating to Apparatus for Cooling Liquids or for Subjecting them to the Influence of Air or Gas.
Inventor: SMALLWOOD ALFRED
IPC: B05B1/32
Filed: 1918-09-20
Abstract: 129,521. Smallwood, A. Sept. 20, 1918. Jets with regulable orifices. -In spraying-apparatus for cooling and aerating liquids in which the liquid issues between the adjustable coils of a helical spring, the adjusting- rod e slides through the top of the liquid chamber a and has a compensating-spring g. The rod may be operated by a bell-crank lever f.
Patent GB-149493-A (GB)
Title: Pinanchor escapement for timepieces
IPC: G04B15/08
Filed: 1919-06-18
Abstract: 149,493. Takata, T. June 18, 1919. Escapements. - The anchor 6 having oppositely-disposed pin-pallets 7, 8 co-operates with a p a i r of escapement wheels 3, 4. The forward radial edges a, b of the teeth are curved to the paths of the pin-pallets.
Patent GB-530249-A (GB)
Title: Improvements in or relating to electric torches
IPC: A45C11/32
Filed: 1939-05-23
Abstract: 530,249. Combined torch and keyholder. SHARP, W. R. May 23, 1939, No. 15323. A key 2 is contained within a [Class 39 (ii)] compartment A on the inside or outside of a torch casing B and is carried by a slide 4 operated by means of a resiliently-mounted button 5 to an outward position in which the key projects for use and is illuminated by the lamp. The key is held by the button 5 engaging the ring hole in the key handle. Walls A, A<SP>1</SP> guide the key, and a contact strip 6 is operated by the slide 4. Where the key is contained on the outside of the torch casing it may be located in a slide by two pegs and a clamping nut engaging an adjustably-mounted boss passing through the hole in the key handle. A number of keys may be contained in a compartment to the side of the battery compartment each being carried and positioned in its own slide and having the edge of its handle projecting from the compartment for easy selection. Each key when operated, displaces a common contact strip. The flexible contact member may have its contact in the form of a cross-piece co-operating with a rotatable contact which may be actuated to render the automatic switching inoperative. In one form the key is carried by a clip hinged to the front and swung outwardly when required, while a further modification is described in which the key swivels on a projection on the casing near the front and is held by a screw. The movement of the key into its operative position may be effected by a spring when a retaining device is depressed. Reference has been directed by the Comptroller to Specification 510,358
Patent GB-916687-A (GB)
Title: Improvements in or relating to magnetic memory arrangements
IPC: G11C7/02
Filed: 1959-05-05
Abstract: 916,687. Transistor pulse circuits. PHILIPS ELECTRICAL INDUSTRIES Ltd. May 5, 1959 [May 8, 1958], No. 15368/59. Class 40 (6). [Also in Groups XIX and XXXIX] In an information store using magnetic cores with substantially rectangular hysteresis characteristics in which a read-out pulse in a conductor associated with a core induces a pulse in a second conductor if the core reverses its magnetic state from " P " to " N," the induced pulse is amplified by a read-out amplifier which is changed from an inoperative to an operative state a predetermined time period after the beginning of the read-out pulse. This delay period prevents a high-amplitude and short-duration spurious pulse produced by a core initially in state " N " from passing to the read-out circuit. As shown in Fig. 1, magnetic cores K11 ... K33 arranged in a coordinate array are selectively changed from state " N " to state " P " by coincident currents applied to row wires P 1 , P 2 , P 3  and column wires S 1 , S 2  S 3 . Read-out is effected by a read-out pulse applied to a row of cores by way of a wire P 1 , P 2 , or P 3 , and induced pulses due to reversed magnetic states are applied over the column wires S 1 , S 2 , S 3  to read-out amplifiers V 1 , V 2 , V 3 . The circuit of amplifier V 3  is shown in detail, and comprises a transformer M and transistor T 1  which apply the induced pulse to the base of a transistor T 2 , this transistor being rendered inoperative by a potential V applied over a resistor W to the emitter. The read-out pulse in a row winding is also applied to a magnetic core KH common to all the rows. The magnetic state of this core is initially set to " P " by means not shown, and is reversed to "N" by the read pulse. An output pulse is obtained which renders a common transistor TH conductive, and the potential at the emitter of T 2  in all the amplifiers is then changed to an extent to permit each transistor T 2  to conduct and produce a read-out output at U. The current build-up time of transistor TH and core KH which is short-circuited by the baseemitter circuit together control the time period during which operation of the read-out amplifiers is delayed. By maintaining core KH in the " N " state, stored information may be erased without producing an output through the amplifiers.
Patent GB-267768-A (GB)
Title: Improvements in the manufacture and production of concentrated solutions of formaldehyde or of paraformaldehyde
IPC: C08G2/08
Filed: 1926-06-18
Abstract: 267,768. Johnson, J. Y., (I. G. Farbenindustrie Aht.-Ges.). June 18, 1926. Formaldehyde. - Methanol substantially free from water is catalytically oxidized, the reaction products are cooled, and the condensate is fractionated by means of the uncondensed gases while slightly heating it, the product being a concentrated solution of formaldehyde which eventually forms a mass of paraformaldehyde. According to an example, methanol vapour of 99.5 per cent strength admixed with sufficient air to effect complete or nearly complete oxidation to formaldehyde is passed over a silver contact mass at a temperature of at least 500‹ C. The reaction products are rapidly cooled to about 30‹ C. and the condensate, while being slightly heated, is passed through a long pipe which is traversed also by the uncondensed gases. The formaldehyde solution obtained is of 60 per cent strength and yields paraformaldehyde on standing for a short time. The paraformaldehyde may be heated in a vacuum evaporator to obtain a dry product and the uncondensed gases may be treated for the recovery of residual formaldehyde.
Patent GB-447576-A (GB)
Title: Improvements in or relating to a shoulder-holder for violins
IPC: G10D3/18
Filed: 1935-05-28
Abstract: 447,576. Violin supports. KORNER, H., 43, Rue de la Ferme, Neuilly, Paris. May 28, 1935, No. 15460. [Class 88 (ii)] A support for a violin consists of a flexible belt, the front part 2 of which is elastic, the belt being adjustable in length at 6, 7 and having brace ends 9 for attachment to the rear and right front trouser buttons. A cord 4 adjustable at 3 along the non-elastic part 1 adjustably carries an eye 5 for receiving a hook on the violin ; or the cord may be wound round the chin-holder.
Patent GB-196205-A (GB)
Title: Improvements in surface condensers
IPC: F28B9/04
Filed: 1922-06-01
Abstract: 196,205. Schneider et Cie. May 4, 1922, [Convention date]. Surface condensers; condenser systems.-The -water supply and delivery pipes and the headers of a surface condenser are divided by partitions fitted with valves so arranged that part of the condenser can be shut off for repairs &c. without interfering with the action of the remainder. Fig. 1 shows a condenser C of the double-flow type in which the front header A and supply pipe Dare divided by a vertical partition d in addition to the usual horizontal partition in the header, the rear header B being fitted with a corresponding partition b. The water delivery pipe E is divided by a partition e continuous with the upper part of the partition in the header A. At the ends of the partitions d, e are flap valves F, G arranged to be opened or closed so as to put either or both halves of the condenser in action as required. If two valves are placed in each chamber the condenser can also be cut off entirely. Several arrangements of condensers provided with the invention are described, including one in which two condensers are employed, the water-supply pipes of which are connected by a pipe with a shut-off valve, so that one condenser can be cut off entirely, and all the cooling water directed through the other; and one in which a by-pass is provided, which can be used when the condenser is out of action, the circulating pump being employed as a bilge pump.
Patent GB-1445082-A (GB)
Title: Pressure control valves
IPC: F16K1/12
Filed: 1973-08-09
Abstract: 1445082 Fluid-pressure servomotor systems LUCAS INDUSTRIES Ltd 9 Aug 1973 15475/76 Divided out of 1445081 Heading G3P A fluid-pressure control valve has a piston 16 with flow control apertures 17 between an inlet 11  and an outlet 12, the position of the piston being controlled by the pressure in chamber 19. The latter is controlled by a relief valve 46 downstream of an adjustable throttle 44 in a passage 43 communicating the inlet with the chamber 19. The spring-bias 47 of the relief valve is adjusted by the output arm 49 of a torque motor 50 so that the outlet pressure is regulated according to the current in the torque motor.
Patent GB-593657-A (GB)
Title: Improvements in and relating to windows, trap-doors and the like
IPC: E05D15/50
Filed: 1946-06-18
Abstract: 593,657. Hinges. BLISS, E. N. June 18, 1946, No. 15497/45. [Class 65 (ii)] A window, adapted to open as required in either one or the other of two opposite directions, carries a pair of superposed flat links at each one of two opposite edges, one of the links of each pair being hinged at one end to the fixed frame by a pin at right angles to the flat surface of the link and being in similar engagement with the movable frame at the other end, and likewise the other link but the corresponding engagement of the latter with the fixed and movable frames being reversed. Figs. 2 and 3 show a pair of links c, c<1> separated. When these are in position on the window the pins f, f<1> are coaxial with the pins h, h<1> respectively and f, h<1> engage with brackets a<1> on the fixed frame whilst #<1>, h engage with brackets b<1> on the movable frame.
Patent GB-112957-A (GB)
Title: Cooling Piston Rods of Tandem-piston Internal-combustion Engines.
Inventor: BICKFORD CECIL ROMNEY
IPC: F01P3/10
Filed: 1916-10-31
Abstract: 112,957. Frost, C. R. B., and Thorne, G. Oct. 31, 1916. Piston-rods.-The pistonrod of a tandem-cylinder internal-combustion engine is cooled by a current of air or water flowing always in the same direction. In the engine shown in Fig. 1, the explosion chambers of the cylinders A, B are adjacent, and the hollow piston-rod C is cooled by a current of air drawn through a valve D in the head of the cylinder A and discharged into the crank chamber through a valve c. The valve D is a flexible metal disk secured by a stud d to the central boss of a spider d<3>. The valve c may be of mushroom or other type, or a metal flap valve as shown. In the water-cooling arrangement shown in Fig. 3, a tube E closed at the lower end and secured at the top to the cover G extends into the hollow piston-rod C. Cooling water enters. through a tube F open at the lower end and flows through the annular space between the tubes F, E to the water space in the cover G, and is discharged into the cylinder jacket a. Alternatively, the water may flow in the reverse direction. When the explosion chamber is above the piston A', the tube E is packed by a ring a<1> in a groove in the piston. Alternatively, the piston-red may extend through a stuffing-box in the cylinder cover, and the tubes E, F be secured to a part outside the cylinder.
Patent GB-379725-A (GB)
Title: Improvements in or relating to heavy oil fuel for internal-combustion engines
IPC: C10L1/22
Filed: 1931-05-27
Abstract: Heavy oils, such as are obtained from asphalt, shale, lignite, peat or petroleum, are rendered suitable for use as motor fuels by admixture with an activator prepared by treating with a nitrating agent the residues obtained in the refining of such oils, for example with sulphuric acid, and then partially reducing the resulting nitro-compounds to yield a mixture of nitro-, azo-, diazo-, and hydrazo-compounds.  The activator is preferably added as a 10 per cent solution in alcohol-benzol mixture containing 3 parts of nitroto 1 part of diazo- or hydrazo-compound.  In the case of Russian oils containing olefines, purification and nitration may be effected in one operation by using a mixture of nitric and sulphuric acids. Sulphur compounds may be removed from the acid-treated oil by treatment with metallic lead shavings.
Patent GB-135885-A (GB)
Title: Improvements in and connected with Automatic Control of Steam Condensing Plant.
Inventor: FOTHERGILL HARRY
IPC: F01B25/00
Filed: 1918-09-25
Abstract: 135,885. Fothergill, H. Sept. 25, 1918. Condenser systems.-In steam-condensing plant, in which a steam jet 15, Fig. 1, withdraws air and uncondensed gases from the condenser 14 and discharges to a chamber 17 in which the steam is condensed, an automatic valve is provided for controlling the supply of water to the chamber 17 in accordance with the operation of both the main engine and the condensate or other pumps. The chamber 17 is supplied with condensate by means of a pump 18 discharging through a non-return valve 19. A supplementary supply is provided by a pipe 20 returning water from the chamber 17 to the condenser 14 under the control of the automatic valve 23. The valve 23 is actuated by a diaphragm 21 loaded as by a spring, and subject on one side to the pressure of the motive fluid in the main engine, acting through a pipe 24, and on the other side to the pressure generated by the pump 18, acting through a pipe 27. By this arrangement, at light loads the valve 23 is open, and at, say, half-load the valve closes; while, if the pump 18 fails, the valves 23, 19 close and prevent flooding of the condenser. In a modification, Fig. 3, the steam jet 15 is in series with a water-jet ejector 34 discharging into the chamber 17 and supplied with water from the chamber 17 by a pump 35. The valve 23 is situated on a pipe 36 which passes water from the discharge side of the pump 35 to the condenser 14. The pressure on the discharge side of the pump is communicated to the underside of the diaphragm by a passage in the valve casing, so that the valve 23 is open at low loads, and is closed at higher loads, or upon failure of the water pressure.
Patent GB-302189-A (GB)
Title: Improved method and apparatus for charging coke ovens
IPC: C10B31/04
Filed: 1927-06-11
Abstract: 302,189. Jackson, L. Mellersh-, (Koppers Co.). June 11, 1927. Charging; gases, withdrawing. - A coke oven, having in the roof a number of charging opening and gas offtakes, the latter being utilized for the removal of gases during charging, is supplied, at one point only, with sufficient fuel to reach, before levelling, the roof of the oven, this method of charging necessitating the provision of two gas off takes only. As shown, the charging holes 4, 5 are respectively fed from small and large hoppers 23, 24 which are carried on a truck 20 running on rails 19 and are each provided, at the lower end, with a telescopic sleeve 25 adapted to be lowered on to the holes 4, 5 when the covers 27 are removed. The gas offtakes 6, 7 are arranged at the ends of the oven 1 and are provided with steam jets 15 to assist during charging only, the withdrawal of gases, and with hand-operated doors 13 to provide access to the off takes for cleaning or other purposes. In operation, the contents of the hopper 23 are first charged into the oven and, as shown, form a pile of fuel which does not extend to the roof 3; the hopper 24 is then discharged and this fuel, before being levelled by the bar 28, divides the oven into two compartments each having its own offtake through which gas is withdrawn by the action of the steam jets 15. A modification is described in which three charging holes, with corresponding hoppers, are provided, the central hopper being, in this case, of greater capacity than the other two. Specification 302,188 is referred to.
Patent GB-312361-A (GB)
Title: Improvements in processes for purifying pig iron
IPC: C21C1/00
Filed: 1929-05-21
Abstract: 312,361. Krupp Akt.-Ges., F. May 25, 1928, [Convention date]. Purifying and refining.-In a process for purifying pig iron in which the carbon content can be reduced, increased, or kept constant, the bath is covered with a dephosphorizing and desulphurizing slag which contains carbon in a solid or liquid form, e.g. tar or carbonaceous compounds. The process may be carried out in the forehearth or hearth of a shaft furnace or in a hearth or rotary tubular furnace, and the carbon content is varied or kept constant by relatively adjusting the quantities of the fining materials and the carbon and also the temperature of the materials. The slag contains the fining means, e.g. iron or manganese oxides as well as materials, such e.g. as oxides of alkaline or heavy metals, required to fix the phosphorus oxides formed. The carbon may be added to the molten metal before the addition of the slag. It is stated that the presence of carbon in the slag maintains the content of silicon and of manganese. Specifications 5084/88, 1947/02, 17131/06, 25581/10, and 162,618 are referred to.
Patent GB-1222889-A (GB)
Title: Elastic backed fabric
Inventor: TURCKSIN CHRISTIAN HEINRICH
IPC: D06N7/00
Filed: 1968-04-02
Abstract: 1,222,889. Coating webs; elastic woven fabrics. C. H. TURKSIN. 2 April, 1968, No. 15697/68. Headings DIK and D1L. [Also in Division B2] A woven elastic fabric comprises warp threads 12, 32, 33 and weft threads 11, 31, arranged in plain or twill weave, the threads having elastic cores 32b, 33b e.g. of vulcanised rubber, enveloped helically with a natural or synthetic textile material 32a, 33a e.g. cotton thread, the fabric being coated on one side with an elastic bonding layer 13, 34 which extends between the warp and weft threads, mutually locating the latter and penetrating at the most halfway through the fabric. The bonding layer eg. latex, rubber or elastomer, is applied to the stretched fabric, the bonding layer set and dried and excess removed. The coated fabric is then compressed to press the bonding layer between the warp and weft threads, excess bonding layer is removed and the layer is subsequently vulcanised. The web may be coated by passage between tension rollers 17, 18 which impart an elongation to the web, into contact with application roller 21, which rotates in the direction of web feed, past doctor blade 24, and into contact with equalising roller 22, which rotates in the opposite direction to the web feed to spread the bonding agent over the whole surface of the web. Rollers 21 and 22 are mounted at least partly within container 19 which holds the bonding agent 20. After passing roller 22, the coated web is fed over guide cylinders 26 and doctor blades 27 in an arcuate fashion to compress the bonding layer into the web, between feed rollers 29, 30 and into vulcanizing and drying device 28