baber/WOPTO huggingface dataset:
Patent GB-1314627-A (GB)
Title: Fluid flow rate meter
IPC: A61B5/09
Filed: 1971-07-28
Abstract: 1314627 Recording-apparatus FIBRE-OPTICS INDUSTRIES Inc 28 July 1971 [11 Sept 1970] 35456/71 Heading G1J [Also in Divisions F1 and G4] A spirometer has a respiratory assembly with a mouthpiece lodged in a holder 16 and comprising sleeves 62, 64 defining a passage 70 through which the patient breathes, the rate and direction of air-flow being detected by a rotatable vaned-member 20. An opaque sleeve-portion 86 of the member is carried by a fixed transparent hub 78. The speed and direction of rotation of the member are detected by photo-cells 58, 60 situated in a fixed ring 48 and energized by light passing through holes 104, 106 in the portion 86 and lenses 57, 61, 96, 98, 100, 102 from corresponding lamps 54, 56. The photo-cell output is received by an electronic circuit 22 from which signals are transmitted to a stepping motor 26 in accordance with the speed and direction of rotation of the member 20. Through gears 28, 30 the motor moves an arm 32 containing an optical fibre 34 into register with the input end of an appropriate member of an array of optical fibres 38, light from a lamp 36 being transmitted by the fibres. The array is movable in directions F by a constant-speed motor (not shown), the output ends being disposed rectilinearly. A curve can thus be traced on a sheet of photographic material 39.
Patent GB-871977-A (GB)
Title: Continuously operated machine for compacting powdered, granulated or like materials
IPC: B30B11/00
Filed: 1958-11-05
Abstract: 871,977. Moulding powdered materials. POUILLE, R. Nov. 5, 1958 [Dec. 13, 1957; June 27, 1958], No. 35546/58. Class 87(2). Powdered material is compacted by feeding it from a hopper 24 having rotating mixing blades 30 into mould spaces formed between blades 3 on a chain conveyer 1 and side plates 22A (B, not shown). A curved member 23 causes the blades to be opened outwardly during filling. The material is precompressed by a roller 21, degased in a suction chamber 35, and finally compressed, during its travel round the driving wheel 5, due to the blades 3 pivoting towards each other. After leaving the wheel 5, the blades 3 open again, and the compacted material falls out of the moulds, and is removed by a channel 38 or a mechanical conveyer. In a modification, Fig. 6, in which the material may be fed inwardly or outwardly of the chain or both, the blades are replaced by members 39a, b, c forming mould cavities 45, 46.
Patent GB-1267540-A (GB)
Title: Coupling assemblies for connecting fluid conduits
Inventor: MAHOFF GEORGE ALEXANDER
IPC: F16L23/04
Filed: 1969-07-15
Abstract: 1,267,540. Pipe joints; joint-making packing. GAMAH CORP. 15 July, 1969, No. 35603/69. Headings F2B and F2G. A joint between pipes 11, 12 includes a resilient metal sealing ring 16 of polygonal, e.g. as shown, rectangular, cross-section, which is twisted from its normal shape as the pipes are brought axially together so that only its outer and inner corners 20, 21 engage with overlapped surfaces 18, 19 of the pipe ends to provide sealed engagement, the ring being substantially incompressible in the radial direction. As shown, the joint is surrounded by a clamp 10 tightened to draw the pipes 11, 12 together. Twisting of the seal ring 16 deflects a flange 15 on the pipe 11 radially inwards to seal at S on a flange 14 of the pipe 12. Axial movement of the pipes 11, 12 towards each other may be limited by the side surfaces 16a, 16c of the seal ring 16 abutting surfaces 16b, 16d in the pipe ends, Fig. 3 (not shown), or by the flanges 14, 15 abutting surfaces 14b, 15b on the opposite pipe ends. During assembly and before twisting of the seal ring 16, slight clearance is provided between the seal ring and the pipe surfaces 18, 19, Fig. 2 (not shown). Two seal rings (24, 25), Fig. 4 (not shown), in parallel may be employed.
Patent GB-1194863-A (GB)
Title: Preservative And Nitrate Reducing Composition For Raw Agricultural Crops
Inventor: NELSON ROLLAND WADE
IPC: A23K3/00
Filed: 1967-08-03
Abstract: 1,194,863. Crop preservative and nitrate assimilation composition; treating grain. R. W. NELSON. 3 Aug., 1967, 35624/67. Headings A1F, A2B and A2Q. A crop preservative and nitrate assimilation composition, which may be mixed with agricultural crops, comprises a mixture of phosphoric acid and propionic acid. Optional ingredients include flavouring agents having bactericidal activity, citric, lactic, succinic, fumaris, benzoic, and adipic acids, and preservatives such as methyl paraben. Reference has been directed by the Comptroller to Specification 1,155,485.
Patent GB-1307030-A (GB)
Title: Methods of preparing semiconductor materials
IPC: H01L21/3063
Filed: 1971-07-29
Abstract: 1307030 Semiconductor devices WESTERN ELECTRIC CO Inc 29 July 1971 [31 July 1970] 35724/71 Heading H1K A method of producing a thin semi-conductor slice containing doped regions comprises forming a thin layer on a semi-conductor substrate, selectively implanting impurity ions in the layer, electrolytically etching away the substrate leaving the layer intact to form the slice, and heating the layer to activate the ions and form regions of different conductivity. The regions containing the ions are said not to react with the etchant. The layer may be of a ntype silicon epitaxially deposited on an n<SP>+</SP> silicon substrate, the ions being of phosphorus to produce a n<SP>+</SP> regions in the n-type slice. Alternatively P-type regions and/or nregions may be produced. The etchant may be of Li OH, KOH, NaOH, HF or HCI, and a platinum electrode may be used. Following etching the slice is heated at between 700 and 1100‹ C. to acturate the ions. Alternative semi-conductor materials may be 3-5 or 2-6 compounds. The slice may be between 1 and 10Á thick.
Patent GB-467915-A (GB)
Title: Improvements in or relating to electron discharge devices and to circuits therefor
IPC: H03F3/28
Filed: 1935-12-24
Abstract: 467,915. Thermionic valves ; amplifying circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Dec. 24, 1935, No. 35772. Convention date, Dec. 27, 1934. [Classes 39 (i) and 40 (v)] The effective input capacity of a valve is eliminated or reduced by the provision of an additional electrode, the potential of which is arranged to vary in phase with, and to the same extent as, the control grid potential. The Figure shows a valve with a current limiting grid 1 so that increases in anode current cause corresponding decreases in the current to the screen 2, 4, adjacent the control grid 3. A resistance 12 in the screen circuit is so proportioned that voltage changes on the screen are equal to those on the control grid so that the input impedance is effectively infinitely large. If the resistance 12 is increased the input will be equivalent to a negative capacity in series with a negative resistance which may be used to neutralise inherent capacity such as that due to the anode. A suppressor grid 5 may be provided. The valve electrodes connected together may be connected inside or outside the envelope.
Patent GB-1024235-A (GB)
Title: Electrical convertor for invertor circuits
Inventor: MILLS JOHN KENNETH
IPC: H02M3/158
Filed: 1962-09-20
Abstract: 1,024,235. Converters. WESTERN ELECTRIC CO. Inc. Sept. 20, 1962 [Sept. 29, 1961], No. 35791/62. Heading H2F. [Also in Division H3] In a transistor inverter circuit in which two transistors are alternatively rendered saturated and cut-off the primary winding of a feedback transformer is connected in parallel with a self-inductance so that current from the transistor which conducts initially flows through the primary winding but as the current continues to flow and the transistor saturates an increasing portion is shunted by the self-inductance with the result that the transistor is brought out of saturation and the current through the parallel combination decreases causing cut-off of the transistor and conduction of the second transistor. In the circuit of Fig. 1, transistors Q1, Q2 are rendered alternately conducting and non-conducting by means of primary winding 12, connected in parallel with self-inductance 17, and secondary windings 18, 19 of a feedback transformer. When the circuit is first connected to the supply Q is rendered conducting by current flowing through starting resistor 21 and quickly saturates and transistor Q2 is maintained cut-off by feedback winding 18. As the current continues to flow through transistor Q1 more and more is shunted away from winding 12 by inductor 17, having a much larger inductance but smaller resistance than winding 12, so that transistor Q1 is brought out of saturation. When this happens the voltage-drop developed across transistor Q results in a fall in current supplied to the parallel combination with the result that the current induced by inductor 17 flowing in the opposite direction through the primary winding immediately cuts off transistor Q1 and turns on transistor Q2. The current through the parallel combination is again shunted by inductor 17 and the cycle repeated. In the circuit of Fig. 2 (not shown), the circuit of Fig. 1 is modified, so as to deliver a direct current output voltage whose magnitude is equal to half the input voltage, by connecting the emitter of transistor Q2 to ground through two series connected diodes, connecting the load across the diodes, and capacitor 14 to the junction of the diodes. The circuit of Fig. 3 (not shown) provides an output voltage equal in magnitude to the input voltage but of opposite polarity. In the circuit of Fig. 4 (not shown), a plurality of D.C. output voltages whose magnitudes are multiples of the D.C. input voltage are obtained across load resistors 33, 35. The circuit of Fig. 5 (not shown) shows four transistors Q3, Q4, Q5, Q6 connected in a bridge circuit. When the supply voltage is applied through starting resistors 42, 43, transistors Q4, Q5 conduct and saturate in the manner described with reference to Fig. 1 and transistors Q3, Q6 remain cut off. After transistors Q4, Q5 have been brought out of saturation they are cut off by the reverse current induced by inductor 45 and transistors Q3, Q6 become conductive, when the cycle is repeated.
Patent GB-394682-A (GB)
Title: Improvements in or relating to the reduction of zinc ores
IPC: C22B19/04
Filed: 1931-12-28
Abstract: 394,682. Distilling zinc. OGG, W. A., 85, Montvale Road, Newton, Massachusetts, U.S.A. Dec. 28, 1931, No. 35808. Convention date, Jan. 15. [Class 82 (i).] A mixture of uncompacted zinciferous oxide and carboniferous reduction material is treated in a mechanically undisturbed layer by radiant heat, the thickness of the layer being governed by the gangue content of the oxide, and the proportion of reduction material in the mixture, and being such that the residue accumulated during the treatment will not substantially impair the transfer of heat in the layer. When the crude oxide is substantially free of gangue, and the reduction material is in theoretical proportion, the thickness of the layer may be about four inches, and this thickness is decreased with increasing gangue content, and proportion of reduction material. The charge is preferably treated in a continuously operated annular rotating hearth furnace from which the volatile products pass through ports 77 into an annular condenser formed by plates 79, 81 projecting from the outer wall of the furnace. Baffles 83 are fitted between the plates, and the condensed metal drains into a channel 87 and thence into collecting-pots.
Patent GB-1400497-A (GB)
Title: Polymerisation of conjugated dienes
IPC: C08C19/44
Filed: 1972-08-01
Abstract: 1400497 Coupling living conjugated diene polymers SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 1 Aug 1972 35870/72 Heading C3P Conjugated dienes are polymerized in the presence of an organolithium catalyst in solution, and the living polymeric anions are coupled with an aliphatic, olefinically unsaturated monohalide containing at least three carbon atoms, the halogen atom being attached to a carbon atom of an olefinic double bond, but not to such a carbon atom which is also attached to a further olefinically bound carbon atom. A further coupling agent, e.g. diethyl adipate or ethylene/methyl methacrylate copolymers may be present. In the examples butadiene is homopolymerized or copolymerized with styrene using sec-butyl lithium as catalyst, and the products coupled with 2-chloro-1- propane or 1-chloro-1,3-butadiene. The products may be vulcanized and an example describes a conventional sulphur vulcanization.
Patent GB-905878-A (GB)
Title: Propellent compositions and the production of propellants therefrom
IPC: C06B21/00
Filed: 1960-10-19
Abstract: 905,878. Propellent compositions. YAMAMOTO, A. Oct. 19, 1960 [Oct. 21, 1959], No. 35872/60. Class 9 (2). A propellent charge is obtained by moulding under pressure a particulate composition comprising (a) a powdered perchlorate, nitrate or permanganate or a mixture thereof, (b) paraformaldehyde, a polymethylene glycol or a polymethylene or a mixture, and (c) a polyisocyanate or polyisothiocyanate having at least two such groups per molecule, or a sodium bisulphite addition product thereof and subjecting the product to curing at 40-120‹ C. Specified compounds are (a) ammonium nitrate, lithium nitrate, sodium nitrate, potassium nitrate, ammonium perchlorate, lithium perchlorate, sodium perchlorate, potassium perchlorate and potassium permanganate; (c) ethylene-, trimethylene-, tetramethylene-, pentamethylene-, hexamethylene-, heptamethylene-, octamethylene-, nonamethylene-, and decamethylene-diisocyanates; phenylene diisocyanate, chlorophenylene diisocyanate, tolylene diisocyanate, naphthylene diisocyanate, triphenylmethane triisocyanate, diphenylmethane diisocyanate, dimethylbiphenylene diisocyanate, dianidisine diisocyanate and dixylidinemethane diisocyanate; and trimethylene-, tetramethylene-, and hexamethylene-diisocyanates. Solvents such as chlorobenzene, anisole, nitrobenzene, ethyl acetate and butyl acetate, and hardeners such as glycols, diamines, urea and amino acids may also be added. Specification 850,336 is referred to.
Patent GB-1497137-A (GB)
Title: Luggage
IPC: A45C13/26
Filed: 1975-09-03
Abstract: 1497137 Suitcases with wheels L SCHWABTZ 3 Sept 1975 [6 Sept 1974] 36203/75 Heading B8P  A suitcase of substantially parallelepipedicshape has front and rear panels which are capable of relative hinging movement to open the suitcase, and top, bottom and side panels 20, 22, 24, 26 therebetween. A carrying handle 27 is provided on panel 20 and a pair of wheels 42 is provided at the junction of the bottom panel 22 and one of the adjacent panels, an additional handle 44 being pivoted to the panel opposite said adjacent panel, the pivot connection being such that the handle 44 is movable between an inoperative position in which it lies alongside the said opposite panel and an operative position in which it is substantially perpendicular thereto. The wheels may be provided at the junction of the rear and bottom panels and the handle 44 on the front panel, but as shown the wheels are adjacent one side panel 26 and the handle is pivoted to a bar 46 secured in a recess of the side panel 24. The handle 44 is hinged to a link 50 having at its other end a slider movable along a guideway 48 in the bar 46. The handle is of channel section to enbrace the bar when it is in its inoperative position and is held in this position by a magnet 56. The body and lid of the suitcase are of rigid moulded or pressed material.
Patent GB-1480340-A (GB)
Title: Aircraft
IPC: B64C25/42
Filed: 1973-07-30
Abstract: 1480340 Aircraft HAWKER SIDDELEY AVIATION Ltd 29 July 1974 [30 July 1973] 36270/73 Heading B7G An aircraft has a fuselage 1 and wings 10 formed centrally with a trailing edge 9 from which is extendible a flap 11 mounted in lateral guides 12. An engine 2 is mounted above and in line with the fuselage longitudinal axis and further engines 3 are mounted to either side of the fuselage longitudinal axis partially within recesses 5, the engines being otherwise enclosed by fairings 7 which are so arranged that air intakes 8 of flattened form are positioned with the central one above the fuselage and the outer ones just aft of wing trailing edge 9, but above flap 11 when extended thereby providing a partial downward and lateral air intake noise shield. The engine axes converge rearwardly so that the exhaust nozzles lie in a noise shielding duct 15 formed by a horizontal central tailplane structure 16 and laterally-spaced substantially vertical fins 17. The close relationship of the exhaust nozzles enables a common jet deflecting arrangement to be used, comprising in structure 16 pivotable flaps 22, 23 and a pivotable fuselage segment 24 mounted on pivots 37 by quadrants 28 connected to the flaps 22, 23 by links 30, 33, 34 and actuated by jacks 26.
Patent GB-697082-A (GB)
Title: Improvements in or relating to hot-gas engines
IPC: F02G1/05
Filed: 1946-12-09
Abstract: 697,082. Hot gas engines. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Dec. 9, 1946 [Aug. 25, 1943], No. 36345/46, Class 7 (i). In a closed cycle hot gas engine in which the power output can be controlled by varying the weight of working gas, during each cycle the or each working space is momentarily put into communication with a gas reservoir for a small predetermined fraction of the time occupied by the cycle under control of means constructed and arranged so that the instant in the working cycle at which this momentary communication occurs is positively determined but variable at will. In one arrangement a piston valve driven from the crankshaft by an eccentric is employed when at the top of its stroke to open a channel connecting the engine cylinder with the crankcase which is closed and under a predetermined pressure. The position of eccentric with respect to the crankshaft can be changed and thus the moment during the engine cycle at which the cylinder is connected to the crankcase can be varied. The eccentric is provided on a helically slotted sliding bush the position of which is controlled by a regulator. The regulator may be a centrifugal governor. In another arrangement, Fig. 3, . the moment at which an enclosed crankcase 63 is connected to the cylinder is varied by rotating a tube 69 which slides within the working piston. The tube has a helical slot in it co-operating with a port in the piston. It is surrounded by a sleeve 76 which ensures that the port is opened only during the up stroke of the piston. The tube may be controlled by a governor 71 which also actuates the inlet valve 75 of a compressor supplying air to the crankcase the valve being opened to render the compressor inoperative. The governor 71 may be a centrifugal governor secured to the crankshaft. Control of the power may be effected solely by turning the tube 69. The power may be varied manually. Specifications 1872/14, 146,620, [both in Class 7 (i)] and U.S.A. Specification 2,272,925, are referred to.
Patent GB-1200667-A (GB)
Title: A method of and an apparatus for tapping metals
Inventor: RUMMEL ROMAN
IPC: B29C48/04
Filed: 1967-08-09
Abstract: 1,200,667. Cooling and granulating melts. R. RUMMEL. 9 Aug., 1967 [9 Aug., 1966], No. 36587/67. Addition to 1,071,613. Heading B5A. Melts, in particular plastics melts, are formed into strands or granulated by surrounding the melt stream issuing from the melting apparatus with a coaxial stream of coolant; the flow of coolant and melt being maintained by the suction effect of a further stream of coolant until the melt stream has solidified; separating the solidified material and coolant and optionally cutting the solid stream to form granules. In one embodiment, as shown, the melt 2 is poured from a hole a in a melt container 1. Cooling fluid 6 is supplied through passage 7 so that it forms a sheath around the melt and further cooling fluid e may be sprayed from holes 14 connecting with annular cavity 17. Baffles in passage 7 prevent rotation of the coolant. The suction medium c is supplied from an annular jet 5 and its motion along pipe 6 drags the solidified melt with it. In alternative embodiments, the pipe 6 may be tapered so that the increase in speed of the suction medium c stretches and decreases the radius of the solidified melt. The melt may emerge through more than one hole, into several streams, either with individual or bulk cooling, the solidified melt streams being passed together through the outlet from pipe 6 and the means for separating the solidified melt from the other fluids. The partly solidified streams may be rotated individually or all together by supplying the cooling liquid tangentially. In the example a melt of nylon 66 is drawn off from the reactor through 8 mm. i.d. holes, at a temperature of 270 C., cooled by water at 30 C., propelled and stretched to a diameter of 3 mm. by water supplied at 4 atmospheres and 30 C. and divided into 3 mm. long sections by a cutter with 42 blades rotating at 3,400 r.p.m.
Patent GB-445057-A (GB)
Title: Improvements in and connected with pipe joints
IPC: F16L27/08
Filed: 1934-12-21
Abstract: 445,057. Pipe joints. HEATH, Ltd., W. H., and LAWRENCE, J. E., 35, Thornhill Road, Barnsbury, London. Dec. 21, 1934, No. 36637. [Classes 99 (i) and 99 (ii)] Fluidtightness in a swivelling joint between a pipe 4, Fig. 5, and a gland member 1 on a second pipe 2 is secured by conical lignum vitae &c. rings 9, 9<1>, with an interposed washer or washers 10 of yieldable material, which are compressed by a gland nut 3 through a loose collar 8. In a modification a plain collar 8 is formed integral with the pipe 4 and the ring 91 is dispensed with, the collar abutting against the washers 10 with the interposition of a metal washer. The invention is particularly applicable to the joints between beer dispensing pipes 16, 18, 19, Fig. 1, and junction members 13, 15, 17 provided with draining and cleaning plugs 20.
Patent GB-326815-A (GB)
Title: Improvements in the manufacture and production of sulphonic acids derived from non-aromatic carboxylic acids
IPC: C07C303/02
Filed: 1928-12-12
Abstract: 326,815. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Dec. 12, 1928. Emulsions, making.-Sulphonated products obtained from non-aromatic carboxylic acids containing more than 8 carbon atoms, or an ester thereof with a polyvalent alcohol, by treating with not more than three molecules of a strong sulphonating agent at a temperature below 35‹ C. and in the presence of an inert diluent, e.g. nitrobenzene or carbon tetrachloride, are stated to be emulsifying agents which may be used in acid solutions. In examples, sulphonated products are prepared from oleic acid, train oil, train oil fatty acid, stearic acid, and cocoanut oil.
Patent GB-619484-A (GB)
Title: Improvements in and relating to load-ratio-control circuits for transformers
IPC: H01H9/00
Filed: 1946-12-12
Abstract: 619,484. Transformers. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 12, 1946, No. 36754. Convention date, Dec. 12, 1945. [Class 38 (ii)] In an on-load tap-changing system for a transformer, in which, when two taps 3, 4 are connected in circuit together the value of the circulating current is restricted by an impedance 8, the effective value of the impedance 8 is reduced when an arcing contactor 11 or 12 is opened to disconnect one tapping from the circuit. When moving contacts 9, 10 engage separate taps 3, 4, half the load current flows through each of the inductively coupled halves of the centre-tapped inductor 8. Prior to moving contact 9, an arcing contactor 11 is opened to break current in this branch. Under shortcircuit load conditions, the heavy current through the left-hand half of inductor 8 which acts as an auto-transformer, induces a restricting voltage which maintains the arc. When contact 15 is engaged, an inductor 14 is connected in parallel with the inductor 8 with respect to the current in the arc so that the effective inductance and therefore the restricting volts are reduced and the arc goes out. The effective inductance is still sufficient to restrict the circulating current. Contactor 12 operates similarly before contact 10 is moved from tap 4. In a modification each half of the inductor restricting the circulating current is divided into two parts, one of which is short-circuited in the full open position of the arcing contacts, Fig. 2 (not shown).