baber/WOPTO huggingface dataset:
Patent GB-1017963-A (GB)
Title: Process for the manufacture of sodium or potassium fluoborate
IPC: C01B35/06
Filed: 1963-02-25
Abstract: Sodium or potassium fluoborate is produced by a process in which (a) fluosilic acid in aqueous solution is reacted with boric acid and the silica thereby precipitated is removed; (b) a source of fluoride ions and, if necessary, also of sodium ions is added whereby unreacted fluosilic acid is converted into sodium silico-fluoride, which precipitates and is removed, while at the same time free boric acid remaining in the solution from the first stage is converted into fluoboric acid; and (c) either potassium fluoborate is precipitated by the addition of a potassium salt or sodium fluoborate is precipitated by the addition of a basic sodium compound followed by concentration.  The fluosilicic acid used in the first stage may be produced in situ by reacting a fluosilicate, preferably the sodium salt, with a strong mineral acid.  Likewise the boric acid used in the first stage may be produced by reacting a salt such as borax, sodium metaborate or colemanite with a strong mineral acid.  When the free acids are used, at least one compound supplying sodium and fluoride ions, e.g. sodium fluoride or sodium chloride and hydrogen fluoride, is added in the second stage.  Preferably, these ions are provided in such relative proportions that all the fluosilicic acid is precipitated as sodium fluosilicate and the boric acid anions are quantitatively converted into fluoboric acid anions.  The basic sodium compound added in the third stage may be sodium hydroxide or carbonate, preferably in amount substantially equivalent to the amount of fluoboric acid anions contained in the solution.
Patent GB-680697-A (GB)
Title: Improvements in casings or enclosures for electric batteries or electrolytic condensers
Inventor: COLTON ROBERT
IPC: H01M50/109
Filed: 1951-04-02
Abstract: 680,697. Batteries; electrolytic condensers. MALLORY BATTERIES, Ltd. April 2, 1951, No. 7556/51. Classes 37 and 53. A primary or secondary cell or electrolytic condenser is provided with a casing consisting of two cup-shaped members 10, 14 separated by an insulating washer 19, the three parts being held together by an outer casing 23, the upper edge 26 of which is crimped over the washer 19. The cell is normally gas-tight, but excessive internal pressure causes a small downward movement of the cup 14 whereby gas can escape between the flange 15 of the cup 14 and the washer 19 and pass into the space 27 between the members 14, 23 and out through an aperture 24. The space 27 may contain absorbent material such as paper or a metal such as lead to retain any electrolyte or mercury carried over with the gas. In a modification, the cup 14 and casing 23 are in loose contact over their whole surfaces, escaping gas finding its way between the walls of the cup and casing and through an aperture in the bottom. In this construction the casing 23 may be in the form of a cylinder open at the bottom. Fig. 5 shows a modification in which the outer casing is replaced by a band 522 spotwelded to the cup 514 and crimped over the washer 519. Gas escapes between the band and cup. The invention is shown in Fig. 1 applied to a cell comprising amalgamated copper and steel dish-shaped members 10, 14 enclosing zinc powder 12, porous layers 18 impregnated with a solution of caustic potash containing a zincate, and a depolarizer 16 consisting of a mixture of mercury oxide and graphite. The layers 18 may be replaced by caustic potash solution gelatinized with sodium carboxymethyl cellulose.
Patent GB-1456559-A (GB)
Title: Thermal printing of magnetic tapes
IPC: G11B5/86
Filed: 1974-02-20
Abstract: 1456559 Tape copying by thermal printing SONY CORP 20 Feb 1974 [23 Feb 1973 27 Feb 1973 27 Nov 1973] 7681/74 Heading G5R Information recorded on a master magnetic tape 1 is copied on to a slave magnetic tape 4 by heating the slave tape and bringing it into contact with the master tape, a detector 13 sensing the temperature of the heated slave tape, and control means operating in response to the output of detector 13 to maintain the temperature of the heated slave tape in the vicinity of the Curie point thereof while the slave tape is in contact with the master tape. The apparatus may have a control unit (14), Fig. 1 (not shown), responsive to the temperature detector 13 to control the voltage applied to halogen lamps (11a), (11b), (11c) forming the heater. Alternatively, a comparator (15), Fig. 2 (not shown), compares the output of detector 13 with a reference input voltage (16) and gives an output controlling the speed of a motor driving a roller 9 which co-operates with an idling roller 8 to drive the tapes 1, 4 through the printing station. In a third form, Fig. 3, the output of detector 13 is applied to a servo circuit (45), Fig. 4 (not shown), controlling a motor 36 to thereby adjust the position of a tape guide pin 38 on a pivoted arm 37 whereby the areas of contact between the slave tape and a heating roller 33 and a preheating roller 32 are adjusted.
Patent GB-181131-A (GB)
Title: Improvements in or relating to indicators for lubricating systems
IPC: F16N29/04
Filed: 1921-03-11
Abstract: 181,131. Stephenson, C. March 11, 1921. Indicating.- An indicator for a lubricating- system, which is operated and exposed to view only when the pressure fails, comprises a casing A carrying a cylinder B and a spring-controlled piston C which is operated by the lubricant through a pipe B'. The piston C operates a spring-pressed lever E carrying an indicating. disc &c. G, which is mounted on a flexible member H to permit oscillation when the disc is raised through a slot in the casing A. The disc G normally rest against a spring A<1>. A pin E<1> on the lever E operates a rod J against the action of a spring L, and a lever K causes electrical contact between points M<1>, M<2> and lights a lamp or rings a bell. The disc G is raised and the other devices operated when the pressure fails and the piston C is forced downwards by the action of the spring.
Patent GB-402843-A (GB)
Title: Improvements relating to apparatus for scarifying roads
IPC: E01C23/12
Filed: 1933-03-13
Abstract: 402,843. Road scarifiers. HENDERSON, G., and HENDERSON, W. M., The Garage, Catrine, Ayrshire. March 13, 1933, No. 7773/32. [Class 107.] A scarifying-apparatus for roads comprises a trailer member or sled 1 provided at or near its rear end 2 with a cutter or cutters 36 and connected to a tractor by a pivoted coupling which prevents lateral movements of the sled but permits vertical bodily movements thereof. In the form shown, the sled and tractor are interconnected by an arched member 3 to which is attached a cross-bar 4 arranged for pivotal and vertical sliding movements in guides 8 secured to the tractor. The guides are interconnected at the top by a bridge carrying a pivoted nut 13 with which engages the screw-threaded spindle 14 of an adjustable inclined strut which is pivotally connected, at its opposite end, to brackets 21 at the rear of the sled. The spindle 14, which is rotated by a handwheel 15, is coupled to a tube 17, the lower end of which is secured to a spindle 18 which slides in a guidemember 19 pivoted to the brackets 21. A spring 23 extending between the tube 17 and guide-member 19 maintains the sled in contact with the ground. The sled comprises a frame having two side plates 40 interconnected by a cross-bar. This cross-bar carries two holders for the vertically adjustable cutters 36 and a further cutter holder is provided in the frame forwardly of the cross-bar. Renewable wear strips 33 are secured to the underside of the sled. The sled is brought into a vertical inoperative position by a winch comprising a manually rotatable spindle 29 and a wire 26. To enable the sled to be moved to this position, the strut is detached therefrom and brackets are provided on the tractor for carrying the parts thereof when not in use. A socket 48 is provided on the sled for receiving a tool for scoring road surfaces which are to be topdressed only.
Patent GB-825850-A (GB)
Title: Automatic lubricant sealed gate valve
IPC: F16K3/36
Filed: 1956-03-13
Abstract: 825,850. Valves. VOLPIN, A. S. March 13, 1956, No. 7845/56. Class 135. In a gate valve the gate member has an opening in which are located two discs which are resiliently urged outwardly. The valve comprises a body 10, Fig. 1, with an integral bonnet 12, a gate chamber 11, Fig. 2, and ports 22. The bonnet 12 receives the actuating stem 17 to which the operating handle 21, Fig. 1, is fixed. A stuffing-box 15 contains a packing 16 and is closed by a cap 18 which encases the drive nut 19 and a bearing 20. The chamber 11, Fig. 2, is closed opposite the bonnet 12 by a plug 25 forced downwardly against a metallic sealing ring 26 by a nut 30. Adjacent each port 22 is a seat member 34 having a flat plate portion 35 and a curved boss portion 36 which is complementary to the curvature of the wall of the chamber 11 and is secured thereto by induction brazing or by flash welding 38, Fig. 4. A circular passage 37, Fig. 2, in the member 34 is aligned with the port 22. Extending upwardly from the boss 36 is a tubular lubricant reservoir 39 in which a piston 40 is located and to which lubricant may be supplied through a channel 41 in the body wall. The flat inner face of each seat member 34 is provided with a groove 46, Fig. 9, between the ends of which is located the inner end of a passage 43 which leads to the adjacent reservoir 39. A gate member 50, Fig. 6, is located between the inner faces of the seat members 34, Fig. 2, is screwed on the part 57 of the actuating spindle and has two circular holes or openings 60, 61. The opening 60 is outwardly tapered to form two conical seats 62, Fig. 4, in each of which is loosely located a disc 63 having a conical periphery. The discs 63 are urged apart by coil springs 67 and are individually located by pins 69, Fig. 6. The gate member is movable between a closed position defined by the engagement of the bottom of the gate with a boss 33, Fig. 2, extending from the plug 25 and an open position defined by a shoulder 59 in the bonnet 12. The face of each disc 63 which engages the flat face of its associated seat member 34 has an arcuate groove 70, Fig. 6, which in the closed position of the gate bridges the ends of the groove 46 in the seat face, Fig. 9, so that when the line pressure in the chamber 11, Fig. 2, forces each piston 40 downwardly inside its reservoir 39 the lubricant is expelled into the grooves 46 to form a seal between the discs 63 and seats 34. Because the discs 63 are loose in the opening 60 their outer faces will make close engagement with the seat faces despite the transmission of torque from the actuating spindle to the gate member as the gate is closed. Between the flat outer faces the gate has longitudinal recesses 54, Fig. 4, so forming ridges 53 which are curved complementary to the curvature of the chamber 11 to constitute guiding means.
Patent GB-1286039-A (GB)
Title: Machine for the production and dispensing of carbonated beverages
IPC: B67D1/00
Filed: 1970-02-18
Abstract: 1286039 Dispensing beverages IMD ITALIANA MACCHINE DISTRIBUZIONE SpA 18 Feb 1970 [21 Feb 1969] 7895/70 Heading A4T [Also in Divisions B1 and B2] Carbonated beverages dispensing machine has a carbonated water tank 1 with a dispensing valve 5 and a water inlet valve 6 controlled so as not to be open at the same time. The valves 5, 6, and the valve 15, which controls the flow of gas to discharge the contents of a capsule 17 of flavouring substance, are magnetic valves controlled by a timer Fig.2 (not shown). The valve 6 when energized connects the tank to a water supply conduit 19 and when de-energized to a gas supply capillary tube 7. A gas supply 8 has reduced valves 12, 9, 13 for delivering the water through the conduit 19 to the tank 1, for delivering gas through the tube 7 to the tank but at a lower pressure, and for delivering gas to the capsule 17. The timer operates the valves as follows: (a) the valve 6 is de-energized, (b) the valve 5 is opened for a pre-selected time to dispense carbonated water, and as the pressure falls gas flows from the tube 7 into the tank, (c) the valve 15 is opened to discharge the flavouring substance and (d) the valve 6 is energized so that water refills the tank. The refilling stage is terminated by a pressure transducer 18 which de-energises the valve 6 when a predetermined pressure is reached in the tank 1. The tank may be refrigerated.
Patent GB-1416286-A (GB)
Title: Production of propionic acid
IPC: C07C51/36
Filed: 1974-02-21
Abstract: 1416286 Propionic acid HOECHST AG 21 Feb 1974 [3 March 1973] 7940/74 Heading C2C [Also in Division B1] Propionic acid is prepared by the hydrogenation of acrylic acid at 20‹ to 80‹ C. under pressures between 1 and 10 atmospheres absolute, using a carrier-supported metallic palladium catalyst prepared by partially saturating 40-80% a dry porous carrier with a palladium salt solvent, further impregnating the carrier with a palladium salt solution to saturation, and reducing to metallic palladium. The carrier may be silicic acid or active carbon, the palladium salt may be chloride or acetate dissolved in water. A fluidized bed catalyst is preferred with the use of circulating hydrogen.
Patent GB-1522102-A (GB)
Title: Production of food stuffs
IPC: A23K1/00
Filed: 1977-02-23
Abstract: 1522102 Pelleted compost for animal feed J F WASHBOURNE 23 Feb 1977 [28 Feb 1976] 7940/76 Heading A2B [Also in Division B5] Mushroom or tomato compost pellets for animal feed material, are formed by cutting an extrusion of the compost from a die comprising a frusto conical inlet, a circular section extrusion passage which has a length to transverse dimension ratio of 4:1, and an expansion passage of larger transverse dimension than the extrusion passage.
Patent GB-1197691-A (GB)
Title: Substituted Thienoimidazoles
Inventor: HOFF DALE RICHARD
IPC: C07D495/04
Filed: 1968-02-19
Abstract: 1,197,691. Thienoimidazoles. MERCK & CO. Inc. 19 Feb., 1968 [21 Feb., 1967], No. 8003/68. Heading C2C. Novel thienoimidazoles of the Formula (I) where R is a phenyl, halophenyl, naphthyl, halonaphthyl, furyl, pyridyl, pyrazinyl, 3- thienyl or thiazolyl radical, wherein the point of attachment is at a carbon atom of the said radical R and the remaining carbon atoms of the radical R are unsubstituted or substituted by an alkyl group having 1 to 5 carbon atoms; R 1  is H, alkyl having 1 to 5 carbon atoms, aralkyl, alkanoyl having 2 to 6 carbon atoms, aroyl, aralkanoyl or hydroxyalkyl; and R 2  is H, halogen, phenyl, halophenyl, naphthyl, or alkyl having 1 to 5 carbon atoms, and non-toxic acid addition salts thereof are produced by a process which comprises heating a compound of the formula where R and R 2  are as defined above, and R 3  is amino, alkylamino having 1 to 5 carbon atoms, aralkylamino, or hydroxyalkylamino in phosphorus oxychloride and, if desired, reacting a compound of Formula (I), where R 1  is H with either an acid halide of the formula where X is Cl or Br and R* is an alkyl group having 1 to 5 carbon atoms, aralkyl or an aryl group, or with an alkyl iodide having 1 to 5 carbon atoms to yield a compound of the Formula (I), where R 1  is an aroyl, alkanoyl with 2 to 6 carbon atoms, aralkanoyl or an alkyl radical having 1 to 5 carbon atoms. Compounds of the formula second written herein, wherein R 3  is H, nitro or amino, which are used in the preparation of compounds of the Formula (I) wherein R 1  is H, together with their preparation, form part of the invention claimed in the Specification of British Application No. 43548/69 (Serial No. 1,197,692). Pharmaceutical compositions having anthelmintic activity and containing compounds of the Formula (I), as defined above, are administered orally or by intramuscular, intratracheal or intraniminal injection in association with a suitable pharmaceutical carrier.
Patent GB-1367467-A (GB)
Title: Switching systems
IPC: H01Q3/34
Filed: 1971-03-26
Abstract: 1367467 RF couplings MARCONI CO Ltd 14 Jan 1972 [26 March 1971] 8032/71 Heading H4A A switching system comprises two pairs of hybrid circuits 45, 46 and 47, 48. The outlets of the hybrid circuits 45, 46 are connected to four respective utilization devices, such as aerials 41, 42, 43, 44, and the inlets of each of said hybrid circuits are each connected to an outlet of a different one of the hybrid circuits 47, 48. By feeding in suitably phased powers to the inlets of the hybrid circuits 47, 48 any desired one of the devices 41, 42, 43, 44 may be supplied. As described, the hybrid circuits are 3dB couplers in which an input to the LH inlet results in equal outputs which are in phase, whereas an input to the RH inlet results in equal outputs which are in phase opposition (Fig. 1, not shown). If all four inlets of the hybrid circuits 47, 48, are fed in phase, the device 41 is supplied. Any other device may be supplied instead by feeding two appropriate inlets in antiphase with the other two (Fig. 2, not shown). The hybrid circuits 47, 48 are fed through amplifiers 49, 50, 51, 52 by an arrangement of hybrid circuits 53, 54, 55, 56 which is similar to the arrangement already described, but is operated in reverse. Power fed to any one of the inlets 57, 58, 59, 60 of the hybrid circuits 55, 56 is delivered to a corresponding one of the devices 41, 42, 43, 44. Two or more of said devices may be supplied simultaneously if powers at different frequencies are fed to the corresponding inlets of the hybrid circuits 55, 56.
Patent GB-1451297-A (GB)
Title: Process for dyeing synthetic fibres
IPC: C09B23/00
Filed: 1975-02-26
Abstract: 1451297 Sulphonamide BAYER AG 26 Feb 1975 [27 Feb 1974] 8037/75 Heading C2C [Also in Divisions C4 and D1] N - methyl - N - (# - methylsulphonylaminoethyl) aniline is prepared by mesylation of the corresponding amine. N - methyl - N - # - aminoethyl - anilino and other similar amines are reacted with mono- or di-nitrobenzenesulphonyl chloride to form the corresponding sulphonamides. N-methyl- N - # - (4 - nitrobenzenesulphonylamino)- ethyl-aniline is reduced with hydrogen to N- methyl - N - # - (4 - aminobenzenesulphonylamino) - ethyl - aniline, which is then mesylated or acetylated to yield N - methyl - N- # - (4 - methylsulphonylaminobenzenesulphonylamino) - ethyl - aniline and N - methyl - N- # - (4 - acetylaminobenzenesulphonylamino)- ethyl-aniline respectively.  N - ethyl - N - Y - methylsulphonylaminopropylaniline is prepared from N-ethyl-N-Y- bromopropylaniline and sodium methylsulphonamide.
Patent GB-806460-A (GB)
Title: Improvements in or relating to heterogeneous nuclear reactors
Inventor: MOORE RICHARD VALENTINE
IPC: G21C17/02
Filed: 1956-03-15
Abstract: 806,460. Nuclear reactors. UNITED KINGDOM ATOMIC ENERGY AUTHTHORITY. March 7, 1957 [March 15, 1956], No. 8146/56. Drawings to Specification. Class 39(4). In a nuclear reactor, in which the fuel elements lie in channels in the core, the fuel is cooled by gas which flows along the channels and is filtered at each channel outlet. Each filter element consists of a helix of nickel wire inserted into the channel. When the helix becomes choked a ball valve in the filter body opens and permits the free flow of unfiltered gas to the exhaust side. As the filter is located in a region of high neutron flux any solid fuel material trapped therein will react and emit fission products which will be detected at a sampling point near the fuel outlet.
Patent GB-946742-A (GB)
Title: Improvements in or relating to load cell weighing apparatus
Inventor: SMITH FRANK VERNON
IPC: G01L1/02
Filed: 1959-03-10
Abstract: 946,742. Fluid pressure load cells. SYDNEY SMITH & SONS (NOTTINGHAM) Ltd. May 2,1960 [March 10, 1959], No. 8156/59. Heading G1W. In a fluid pressure load cell of the kind in which a plunger 3 is supported in a pressure chamber 1 by an annular flexible diaphragm 4 secured to the plunger and the chamber body, the diaphragm is of metal and the portion 4c thereof which covers the annular space 10 between the plunger head 3c and the chamber walls 1b is convex towards the liquid containing lower chamber portion 1c. The plunger stem 3a is surmounted by a loading dome 9 and the lower chamber portion 1c communicates with an outlet 11 adapted for connection to a metering device.
Patent GB-589935-A (GB)
Title: Improvements in or relating to inter-engaging elements for building up expansible structures
IPC: H02B15/04
Filed: 1945-04-03
Abstract: 589,935. Radio apparatus. JONES, A. M., [trading as LABGEAR], and VOGEL, E. J: April 3, 1945, No. 8226. [Class 40 (v)] [Also in Group XXXVII] Constructional elements for forming a support or base comprise (1) a strip having alternately disposed slots on either side of length equal to half the width of the strip, the slots on each side being spaced apart by a distance equal to the width of the strip, and (2) an element interengaging with said strip having one side equal to the width of the strip, and a slot in the centre of this side of length equal to half the width of the strip. In a modification, the strip has oppositely disposed slots of length equal to a quarter of the width of the strip, spaced apart by the length of a slot. A strip 1, Fig. 1, is provided on each side with slots 2, 3 of length equal to half the width of the strip, and spaced apart by the width of the strip. The slots on either side are staggered relatively to the slots on the other side by the length of a slot, and the strip is provided with transverse rows of holes 5 for the attachment of wires or components. An interengaging element 9, Fig. 3, which may have a length equal to the width, one and a half times the width, or twice the width of a strip, and is of the same width as the strip, is provided at one end with a slot 13 and longitudinal rows of holes 12. A modified form of strip 20, Fig. 7, is twice as wide as the strip 1, and is provided with opposite pairs of slots 21, spaced apart by the length of a slot, and transverse rows of holes 22. The slots 21, 13 and holes 22, 12 in elements 20, 9 are of the same dimensions as the slots 2 and holes 5 in the strip 1. A support or base, Fig. 5, is formed by assembling strips 1 and interengaging elements 9 at right angles. Two or more main strips 1 may be assembled side by side by using connecting pieces 14 cut from strips 20. Strips 20, Fig. 7, may be used in- - stead of strips 1. The elements are preferably made of insulating material and the entrances to the slots may be bevelled or rounded. Soldering tags may be fixed in holes 5, 12, 22 'to form a tag - board assembly for radio apparatus.
Patent GB-558087-A (GB)
Title: Improvements in or relating to printing inks
IPC: C09D11/08
Filed: 1942-06-16
Abstract: 558,087. Ink. KENILWORTH MANUFACTURING CO., Ltd., and SHAFFER, G. June 16, 1942, No. 8251. [Class 146 (iii)] Printing-ink has depolymerized lac incorporated in it to serve as a film-forming ingredient and as a plasticizer or softener, in place of some or all of the lac or other gums, resins, &c. commonly used. The lower state of polymerization may be reached by heating commercial lac under pressure in the presence of water or steam with or without a catalyst, such as zinc or zinc oxide, or by treating the lac with a hydrolysing-agent, such as a solution of sodium hydroxide The depolymerized lac is dissolved in a suitable solvent, or is dispersed in a non-solvent, such as water, by the action of borax or ammonia, and the medium subsequently dyed or pigmented. A stamping-pad ink may be formed by dissolving depolymerized lac and methyl-violet die in methylated spirit with the addition of ethylene glycol.