baber/WOPTO huggingface dataset:
Patent GB-765692-A (GB)
Title: Improvements in or relating to production of beryllium metal
Inventor: WILLIAMS JACK
IPC: C25C3/34
Filed: 1954-06-03
Abstract: Entrained chloride is removed from electrolytically produced beryllium by comminuting the metal to a particle size of about 10 microns and leaching with an aqueous solution of an organic compound capable of forming a chelate complex with beryllium. This may be a polycarboxylic acid or an aromatic compound with one or more hydroxyl groups attached to the ring, e.g. oxalic, malonic, succinic acids, pyrocatechol, and may be present in the solution to the extent of 10 per cent by weight, or to saturation if the solubility is less than 10 per cent.  Thereafter the beryllium is preferably washed with hot water or treated with steam and after drying annealed in vacuo at 500 DEG C. to 800 DEG C.  The resulting air-stable powder may be compacted under a pressure of 4 tons per sq. inch at an elevated temperature of for example 800 DEG C.
Patent GB-824768-A (GB)
Title: Method of producing a direct and firm bond between structural components of ferrous metal and aluminium or aluminium base alloys by casting molten aluminium or aluminiumbase alloys around or on to the surface of the ferrous metal components
IPC: B22D19/00
Filed: 1955-06-08
Abstract: Ferrous metal structural components are tinned by immersion in a tin salt melt before aluminium or aluminium-base alloys are cast around or on to the surface thereof.  An electrodeposit of iron is preferably applied to components made of cast iron having pronounced coarse veins of graphite or steels alloyed with nickel before tinning them.  The example relates to the tinning of a stainless steel peg in a melt consisting of 50-62% SNCl2 and 50-38% KCl before being cast around with aluminium-silicon alloy. According to the Provisional Specification, the tin coating may be applied galvanically or by immersion and may be thermally after-treated.
Patent GB-164625-A (GB)
Title: Process for the utilization of waste or spent lime sludge
IPC: C05D3/02
Filed: 1920-06-18
Abstract: The spent or waste lime sludge consisting of calcium carbonate mixed with much water, which is a by-product in the alkali and other industries, is converted into a substantially dry and readily-handled product suitable for liming acid land and other purposes by the addition of quicklime.  Sufficient of the latter may be added to dry the sludge completely, or only a small amount may be stirred with the mud, in any pan-vessel or rotary drier and desiccation effected by the application of heat.  The mixture of calcium carbonate and hydrate which results may be converted wholly into carbonate by passing furnace or other gases containing carbon-dioxide through the mass.
Patent GB-620844-A (GB)
Title: Improvements in pulverisers
IPC: B02C15/12
Filed: 1946-05-31
Abstract: 620,844. Grinding, crushing, &c. mills. BABCOCK & WILCOX, Ltd. May 31, 1946, No: 16591. Convention date, June 20, 1945. [Class 59] In a grinding-mill, particularly a ball-andring mill, in which a gaseous fluid is supplied through a duct 28 to a space 39 below an annular throat 32 around the circumference of a rotary grinding member 18, and flows upwardly through the throat to carry away the pulverized material in suspension, the passage through the throat varies in cross-sectional area around the periphery thereof in such manner that a substantially uniform velocity of flow is obtained at all points around the outlet of the throat notwithstanding variations in pressure in the space 39. The ball-and-ring mill shown is used for pulverizing coal and is similar to that described in Specification 575,376 in which the duct 28 communicates with a wind. box 30, the cross-section of which decreases progressively from the inlet thereof to a point opposite to the inlet, and the air is admitted to the space 39 through apertures 31 arranged circumferentially in the mill casing 10, the outer wall of the throat being formed by a ring 33 formed with lugs 41 as described in Specification 575,376 and secured to the casing 10 by bolts 43 so as to be radially adjustable. As shown in Figs. 3 and 4, the ring 33 is shaped and mounted so that its inner circumference is eccentric to the grinding ring 18 and the radial width of the throat varies from a minimum at a point adjacent the duct 28 to a maximum at a point opposite thereto. The lugs 41 are machined so that their ends are equidistant from the circumference of the ring 18. Specification 523,753 also is referred to.
Patent GB-871141-A (GB)
Title: Method for electric arc welding
Inventor: FREETH WILLIAM EARL
IPC: B23K35/04
Filed: 1956-05-29
Abstract: A ferrous cored electrode for arc welding ferrous materials in a shielding gas consisting of at least 80% carbon dioxide, has a low hydrogen coating containing fluxing and deoxidizing material including basic material i.e. slag forming carbonates or fluorides and at least 20% rutile material i.e. oxides of titanium and zirconium silicate.  The coating contains at lease 50% more rutile material than "basic" materials.  The coating may contain:-20-65% rutile, 0.5-20% fluorspar, 0-30% felspar, 10-30% ferroalloys, and if desired iron powder.  A specific example is:- 45% rutile, 5% fluorspar, 15% felspar, 16% ferromanganese, 18.5% iron powder, 0.5% bentonite.  An electrode for welding mild steels has a coating consisting principally of:-45-60 rutile, 4-12 fluorspar, 12-24 felspar, 10-20 ferro-alloys, iron powder as desired.  The ferro-alloys include up to 10 ferro-manganese with say ferro-silicon, ferro-aluminium or ferro-titanium.  Such an electrode is modified for welding a low alloy steel containing 1% chromium and 0.5% molybdenum by the addition of 5-10 ferro-chromium and 1-5 ferro-molybdenum to the coating.  An electrode for welding mild steel using high currents has the following coatings:-20-60 rutile, 5-20 fluorspar, 0-30 felspar, 0-20 limestone, 0-5 clay, 2-30 ferro-alloys from ferro-manganese, ferro-silicon, ferro-titanium and ferro-aluminium. In addition up to 50% iron powder, ferro-chromium, nickel, copper, are stabilizing compounds such as barium or strontium carbonate and silica can be included.  Such additions may be included in the following coating for use in "position" welding:-20-65 rutile, 1-8 fluorspar, 0-30 felspar, 0-10 limestone, 2-30 ferro-alloys, 0-5 clay. For welding steel containing 4-6% chromium and 0.5% molybdenum a suitable coating is:-35 rutile, 10 fluorspar, 12 felspar, 8 limestone, 16 ferro-manganese, 2 ferro-silicon, 8 ferro-titanium, 22 ferro-chromium, 3 ferro-molybdenum.  For depositing weld metal containing 2-3% nickel the coating is:-50 rutile, 10 fluorspar, 12 felspar, 8 limestone, 10 nickel, 15 ferro-manganese, 3 ferro-silicon. For welding 18/8 stainless steels, the coating may be as follows:-20-50 rutile, 8-20 fluorspar, 0-10 felspar, 5-20 limestone, 5-10 nickel, 0-10 ferro-niobium, 10-25 ferro-chromium.  Unless otherwise specified the proportions are in parts by weight. Specifications 584,299, 871,142 and 871,143 are referred to.
Patent GB-292073-A (GB)
Title: Improvements in or in connection with the drilling of oil wells
IPC: E21B33/06
Filed: 1928-06-08
Abstract: 292,073. Bodnarescu, M. V., and Minculescu, T. June 11, 1927, [Convention date]. Borehole apparatus; wells. - A horizontal. cylinder A is provided in the casing B of an oil well below the usual closure H and contains pistons D, movable by screws E and guided by keys p, the pistons having grooves in their opposed faces whereby when moved together they embrace the drill pipe C and close the space between the latter and the casing. The cylinder has air outlets a. In withdrawing the drill pipe, the latter is lifted until a. joint passes the pistons, which are then closed round the pipe; the closure H is then removed, the pipe is lifted until the joint emerges from the casing, the closure H is replaced, and the; pistons are separated to permit a further lift.
Patent GB-382917-A (GB)
Title: Pneumatic striking mechanism for pianos
Filed: 1932-06-13
Abstract: 382,917. Pianofortes. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin.-(Assignees of Nernst, W.; 16, Neue Wilhelm Strasse, Berlin.) June 13, 1932, No. 16674. Convention date, June 13, 1931. [Class 88 (ii).] The hammer of a pianoforte consists of a piston S2 in a narrow tube, and is actuated by the air which is compressed either in a wider tube by a piston S1, or in a bellows, on actuation of the key T. The hammer thus moves with a higher velocity than the key. An orifice R is opened at or before the striking of the string, to assist the return of the hammer. Liquid may be employed instead of air. Weak springs are inserted when the device is used in upright pianofortes.
Patent GB-691931-A (GB)
Title: Improvements relating to the automatic control of electrical load circuits
Inventor: NORCROSS THOMAS
IPC: G05F1/32
Filed: 1950-07-04
Abstract: 691,931. Automatic current control systems. PARMEKO, Ltd. July 4, 1951 [July 4, 1950], No. 16677/50. Class 38 (iv). The current in an A.C. load circuit (the lighting of an airfield runway) is maintained constant by connecting a saturable reactor in series with the supply and controlling the saturation of the reactor in accordance with the difference between an adjustable reference voltage and a voltage proportional to the load current. The current in the load connected across terminals 5, 6, and supplied from terminals 3, 4, is measured by a current transformer T2, the output of which is rectified at RT3 and compared with the output of a reference rectifier RT4. This is supplied from an auxiliary supply T5, via transformer T4 and saturable reactor SR4 controlled by a D.C. control voltage applied at 16, 17. Any departure of the output voltage of rectifier RT3 from that of RT4 causes the control winding of saturable reactor SR2 or SR3 to be energized to correctively vary the current supplied from transformer T1 via rectifier RT2 to the control winding of the main saturable reactor SR1. Since variations in the impedance of reactor SR1 also vary the output voltage of transformer T1, and since the impedance of the reactor does not vary linearly with the saturating current, a compensating control current is supplied to the saturating winding from the auxiliary supply T5 via a constant voltage transformer T3, a saturable reactor SR6 and rectifier RT1. The magnitude of the current is controlled by a resistor R6, a further reactor SR7, and a further resistance R7. Similar means R5, SR8 and R8 are provided for controlling saturable reactor SR5 to adjust the output from transformer T1 to the main control circuits.
Patent GB-374627-A (GB)
Title: Process for the production of synthetic bodies similar to papaverine
IPC: C07D217/02
Filed: 1931-06-08
Abstract: 3-Methylisoquinoline derivatives which contain a phenyl or alkoxyphenyl or pyridyl group in the 1-position are prepared by dehydrogenation of the corresponding 3 : 4-dihydro compounds. Examples are given of the dehydrogenation with palladium of 1-phenyl-3-methyl-6 : 7-methylenedioxy - 3 : 4 - dihydroisoquinoline to 1-phenyl-3-methyl-6 : 7-methylenedioxyisoquinoline, and of 1-(3<1> : 4<1>-methylenedioxyphenyl)-3 - methyl - 6 : 7 - methylenedioxy-3 : 4 - dihydroisoquinoline, 1 - (b  - pyridyl) - 3-methyl-6 : 7-methylenedioxy - 3 : 4 - dihydroisoquinoline and 1-phenyl-3-methyl-6 : 7-dimethoxy-3 : 4-dihydroisoquinoline to the corresponding dehydro isoquinoline compounds.ALSO:3-Methylisoquinoline derivatives which contain a phenyl or alkoxyphenyl or pyridyl group in the 1-position are prepared by condensation and ring closure of 1-(4<1> : 5<1>-dialkoxy- or methylenedioxy-phenyl)-2-aminopropanes with benzoic acid, nicotinic acid or ethers of oxybenzoic acids, e.g. veratric and piperonylic acids, followed by dehydrogenation of the products.  The resulting compounds possess therapeutic properties similar to those of papaverine.  According to the examples, (1) 1-phenyl-3-methyl-6 : 7-methylenedioxyisoquinoline is obtained by heating the amide obtained from 1-(4<1> : 5<1>-methylenedioxyphenyl)-2-aminopropane and benzoyl chloride, with phosphorus oxychloride to effect ring closure and the 3 : 4-dihydro product then dehydrogenated with palladium black; (2) 1-(3<1> : 4<1>-methylenedioxyphenyl)-3-methyl-6 : 7-methylenedioxyisoquinoline is obtained in the same way from 1-(4<1> : 5<1>-methylenedioxyphenyl)-2-aminopropane and piperonylic acid chloride; (3) nicotinic acid chloride is heated with 1-(4<1> : 5<1>-methylenedioxyphenyl)-2-aminopropane, the resulting amide converted into the dihydroisoquinoline compound by means of phosphorus oxychloride, and the product dehydrogenated with palladium to 1-b -pyridyl-3-methyl-6 : 7-methylenedioxyisoquinoline; (4) the amine  (CH3O)2 = C6H3 -- CH2 -- CH (CH3) NH2 is benzoylated, ring closure of the resulting amide effected with phosphorus oxychloride and the product dehydrogenated with palladium black to yield 1-phenyl-3-methyl-6 : 7-dimethoxyisoquinoline.
Patent GB-649611-A (GB)
Title: Improvements in or relating to thermal regenerators
IPC: F02G1/057
Filed: 1948-06-22
Abstract: 649,611. Heating & cooling gases. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. June 22, 1948, No. 16707. Convention date, June 25, 1947. Drawings to Specification. [Class 64(i)] The filling material of a thermal regenerator, e.g. for a hot-gas engine or a refrigerating system, consists of non-metallic filaments the surfaces of which are metallized. Glass wool or quartz wool may be plated with nickel, chromium, copper, or silver. Quartz wool fibre 10 microns thick may have a metal layer 5 microns thick.
Patent GB-223842-A (GB)
Title: Improvements in or relating to music recording devices
IPC: G10G3/04
Filed: 1923-06-22
Abstract: 223,842. Barbieri, A. June 22, 1923. Selective perforating machines. - Apparatus for perforating a tune-sheet from a key-operated musical instrument has means for representing a musical note by a number of aligned holes following one another very closely. The instrument keys 1, 2 on depression close electrical circuits containing solenoids 11, which latter, through levers 14<1>, 16<1>, 42 interpose selector abutment members 44 successively between staggered reciprocating members 45<1>, 45<11> and spring retracted punches 24. A shaft 47<1>, through gearing, feeds the tune sheet 28 over the die plate 27 and also carries cams 46, 47 profiled so that for each revolution of the shaft 47<1> the member 45<1> is made to perform two or three strokes and the member 45<11> only one. On depressing a key the abutment 44 first comes under the member 45<1> to form the part A on the sheet Fig. 4, and then under the member 45" to form the part B. On releasing the key the part A' is formed by the member 45<1>.
Patent GB-624275-A (GB)
Title: A new or improved safety interlock for press guards
IPC: F16P3/04
Filed: 1947-06-25
Abstract: 624,275. Machinery guards. MOULDED PRODUCTS, Ltd., WILKINSON, W. D., and HEMMINGSLEY, H. R. June 25,1947, No. 16723. [Class 80 (iv)] A valve controlling the supply of pressure fluid to the head of a hydraulic press is itself controlled by the safety guard of the machine. As shown, the guard 11, which is slidable and carries a cam surface 33, is closed and pressure fluid controlled by a valve (not shown) to an inlet port 19 can pass from the port 19 to the ram of the press through an outlet port 20, a piston 29 preventing access to an exhaust outlet 23. During operation of the press, hydraulic pressure acting on the piston 29 presses the follower 30 on the piston spindle 25 against a face 32 on the guard and resists movement of the guard to the open position. When the hydraulic pressure has been released, the guard may be slid open and the piston 29 raised by the cam 33 to close the port 20 and connect the inlet port 19 with the exhaust outlet 23.
Patent GB-752711-A (GB)
Title: Improvements in the production of phosphate coatings on metallic surfaces
IPC: C23C22/07
Filed: 1954-06-08
Abstract: In a method of forming an amorphous phosphate coating on a metallic surface, the surface is treated with an aqueous composition of an aliphatic mono-ester of phosphoric acid having from 8 to 18 carbon atoms, the composition having a pH between 3 and 5,5 and containing ions of a metal which forms with the ester, a salt compatible with the composition i.e. a salt which is either soluble or forms a colloid in the composition.  The preferred esters are the lauryl and oleyl esters although mixtures of esters and mixed esters may also be used.  Metal ions which may be used include those of zinc, aluminium, cadmium, copper, nickel, iron and the alkali metals, including ammonium.  An amine which reacts with part of the phosphoric acid ester to form an amine salt compatible with the composition, i.e. ammonia, monoamines, diamines, tertiary amines and cyclic and heterocyclic amines, may be incorporated in the composition, as also may be added an oxidising agent to act as an accelerator e.g. a nitride, nitrate, peroxide, chlorate, bromate, sulphite or a nitro-organic compound such as meta-nitrobenzine sulphonate or picric acid.  It is said that these coatings facilitate the plastic deformation, e.g. drawing, of metals.
Patent GB-1171228-A (GB)
Title: Improved Disposable-Type Gas Lighter
Inventor: VILLARREAL EDMUNDO CUEVA
IPC: F23Q2/52
Filed: 1967-04-12
Abstract: 1,171,228. Smokers' lighters. E. C. VILLARREAL. 12 April, 1967 [13 April, 1966], No. 16839/67. Heading F4F. A lighter is produced by injection moulding plastic to produce three pieces of which the first is a case section A including upper and lower parts connected by a hinge section 7, a valve seating 17 and male and female catch members 1, 6, the second piece is a fuel reservoir B and the third piece is a platform portion C having a rubber insert 8, a cavity 2 to receive sparkproducing mechanism 9 and a metal burner nozzle 4. A tubular plastics part 5 containing fibrous material or a porous plastic is fitted to the burner nozzle feed pipe to control the flow of gas and maintain it at a predetermined level. The parts are assembled in gas-tight relation by bonding such as fusing by high-frequency heating. Fuel is supplied to the reservoir through a hollow needle piercing insert 8.
Patent GB-1187893-A (GB)
Title: Method of Producing a Sealing-Tight Joint between Two Tubes and Joint Produced by the Method.
Inventor: BERNARD JEAN-ANDRE
IPC: F16L13/007
Filed: 1968-04-09
Abstract: 1,187,893. Jointing. EUROPEAN ATOMIC ENERGY COMMUNITY. 9 April, 1968 [19 April, 1967], No. 16990/68. Headings B3J and B3V. [Also in Division F2] A joint between two tubes 1, 2, in which one tube, 1, has at least at its end to be joined a wall thickness greater than that of the other tube, 2, comprises on the end of tube 2 a collar or flange 5 which is pressed into at least one groove 4, or against at least one rib, at the end of tube 1 by a matching member 8 welded at 9 to the tube 1, the assembly being prestressed to maintain the clamping pressure on member 8. As shown, pre-stressing is effected by tube expander 11 with the outer sleeve 6 constrained by a collar 10. The expander elongates the tube 1 thus closing the joint and tensioning the sleeve 6. The sleeve 6 may be located within the pipes and the joint used for a nuclear reactor. Tubes of zirconium alloy are referred to, but different materials may be used for each tube. The flange 5 may be Z-shaped and formed by the tube expander.
Patent GB-1218357-A (GB)
Title: Improvements in or relating to bellows
Inventor: ROBINSON ALFRED ALEXANDER
IPC: F16J3/04
Filed: 1967-04-13
Abstract: 1,218,357. Bellows. ENGLISH ELECTRIC CO. Ltd. 10 April, 1968 [13 April, 1967], No. 16992/67. Heading F2B. [Also in Division H1] A bellows structure for a vacuum circuit interrupter includes a tubular wall comprising at least one diaphragm and a part 18 of its surface is in contact with a reservoir 19 for forming or maintaining a film 27 of hysteresis liquid (e.g. mineral or silicone oil) on the diaphragm so as to damp vibrations set up after a contact carrying rod 15 has been actuated. The bellows may be made of stainless steel having its lower end in contact with a reservoir 19 made from a porous ring of felt, glass wool or polyurethane. In a modification, the material of the reservoir is compressed by a spring.
Patent GB-643224-A (GB)
Title: Improvements in devices for cutting paper and like sheet material
IPC: B26D1/20
Filed: 1948-06-25
Abstract: 643,224. Cutting webs transversely. AUTOPACK (LONDON), Ltd., LEE, G. A., SMITH, A. R., and HOPKINS, C. J. June 25, 1948, No. 17129. [Class 31 (i)] Apparatus for cutting paper or like sheet material comprises a grooved supporting table a provided with a bar q for clamping the material b and a thin cutting blade d mounted in a carrier e slidable along a guide f. The carrier is propelled across the material by springs g on opposite ends of the guide and alternately compressed and released by a reciprocatory bar i carrying a pair of pawls which alternately engage the blade carrier and press it against the springs in turn. As shown in Fig. 1, movement of the bar i to the left causes the left-hand pawl j to press the blade carrier against the spring until the pawl contacts stop o and is tilted thereby, whereupon the pawl releases the carrier which is propelled along the guide by the force of the spring and is arrested at the other end of the guide by the other spring and pawl. The bar i is reciprocated by means of link n coupled to a rotating member m.
Patent GB-1365604-A (GB)
Title: Exhaust system of an internal combustion engine
IPC: F01N3/20
Filed: 1972-04-14
Abstract: 1365604 Purifying I C engine exhaust gases NISSAN MOTOR CO Ltd 14 April 1972 [ 28 Oct 1971] 17241/72 Heading F1B A casing 22 around the exhaust pipe 18 upstream of a catalytic converter 20 for reducing nitrogen oxides defines an air space 24 with an inlet 26 and an outlet 28. Mechanically connected valves 30 and 32 in the inlet 26 and outlet 28 are operated by a diaphragm actuator 36 linked to the valve 30. The application of intake manifold vacuum to the actuator 36 to open the valves is controlled by a solenoid valve 42 which is energized to open the vacuum conduit 34, 40 under the control of a switch 46. The switch 46 communicates through a conduit 52 with the converter 20 at a point 54 and operates in accordance with the temperature of the converter catalyst. Above a predetermined catalyst temperature, e.g. 650‹C, Fig. 2 (not shown), the switch 46 causes the valve 42 to be energized and air is admitted to the space 24 to effect cooling of the exhaust gases. The switch 46 causes the valve 42 to be de-energized at a lower catalyst temperature, e.g. 450‹C, so that the catalyst temperature can, for certain engine operating conditions, be maintained within a certain range. The casing 22 may have foamed or fibrous insulation.