baber/WOPTO huggingface dataset:
Patent GB-1291854-A (GB)
Title: Aircraft doors
Inventor: ALLWRIGHT ERIC SYDNEY
IPC: B64C1/14
Filed: 1969-02-07
Abstract: 1291854 Aircraft doors BRITISH AIRCRAFT CORP Ltd 4 Feb 1970 [7 Feb 1969] 6830/69 Heading B7W [Also in Division E2]  An aircraft has a door 10 which must be lifted to disengage securing means 13, 15 on the door 10 and door opening, the door having a main part 11, Fig. 1, and an upper panel 12 linked to it so that it can move between a position flush with the main part 11 and the opening, and a position (12a), Fig. 4 (not shown), inward and partly below the main part 11. A hinge arm 25 is pivoted to the fuselage at 17 and a bracket 26 pivotally mounted on the arm 25 connects it to the door 10 by a tension spring 31, parallel pivoted links 28, 30, and by a linkage 18, 19, 29 and main door shaft 16. When the shaft 16 is rotated by a handle 14, the linkage 18, 19, 29 causes the door to be raised relative to the hinge arm 25. Lever 20 and compression spring 32 pass through a dead centre position during rotation of shaft 16 so as to locate the handle in two stable positions. Simultaneously, with raising the main part of the door 11, linkage 22, 36, 38, 40 causes rotation of a torsion shaft 34 which, through linkages 42, 44, 46, 48 moves the panel 12 which is hinged to the main part 11 by levers 50, 52. Movement of the panel 12 is controlled by a roller 58 attached to the panel 12, engaging in a slot 60 attached to the main part 11, or vice versa, so that, during closing, the panel first moves, upward to engage lugs 61 in recess (64), Fig. 4 (not shown), before the bottom edge moves outwards to seal compressible rubber seals 66 flush with the main part 11 and the opening. The linkages 46, 48 pass over dead centre positions, Fig. 7 (not shown), as panel 12 moves from the open position to the closed position so that the panel and main part of the door are held firmly in the closed position. A piece 54 on the lever 50 operates a microswitch 56 to switch on an indicating light in the cockpit when the panel is securely fastened.
Patent GB-540452-A (GB)
Title: Improvements in or relating to machines for bending metal strip, rod or the like
IPC: B21D7/022
Filed: 1940-04-16
Abstract: 540,452. Angular bending. STANDARD TELEPHONES & CABLES, Ltd., and MAY, F. W. April 16, 1940, No. 6847. [Class 83 (iv)] Metal strip, rod &c. is bent round a pivot fixed on a base plate by a sweep arm, the strip being clamped to the base plate by a gear wheel automatically rotated by rotation of the arm so as to move along a screw thread provided on the pivot. The base plate 10 carries a stop 12 for one end of the work 13 and a fixed pivot 14 through which passes a pin 22 secured to a U-shaped arm 18, 21 carrying a bending collar 26 on a shaft 25. The pivot is provided with a left-hand thread 15 engaging a similar thread on a gear wheel 16 geared to a planet wheel 27 on the shaft 25 and has also a right-hand thread engaging a stop collar 17. The strip &c. 13 is inserted between the stop 12 and pivot 14 and the shaft 25 rotated by the arms 30 on the head 29. The gear wheel 16 first moves down on the thread 15 to clamp the strip to the base and the arm 18, 21 then sweeps round the gear wheel and bends the strip to the required angle.
Patent GB-1216065-A (GB)
Title: A method of producing boron trifluoride
Inventor: MASSONNE JOACHIM
IPC: C01B35/06
Filed: 1969-02-07
Abstract: 1,216,065. Boron trifluoride. KALI-CHEMIE A.G. 7 Feb.,1969 [22 Feb., 1968], No. 6853/69. Heading ClA. Boron trifluoride is produced by reacting boric acid (ortho-, meta- or pyro-boric acid or boron trioxide) with an at least equimolar amount of anhydrous HF at 80-160‹ C. in sufficient oleum for the molar quantity of sulphur trioxide present in the reaction mixture to correspond to from 90-110% by weight of the molar quantity of water set free by the reaction. In carrying out the process, HF may be introduced into a mixture of boric acid and oleum. Alternatively, boric acid may be introduced directly or in solution in H 2 50 4  into a mixture of HF in oleum or vice versa. For performing the reaction continuously it is preferred to meter the boric acid/sulphuric acid mixture and the HF/oleum mixture into the reactor in the required proportions.
Patent GB-475026-A (GB)
Title: Improvements in and relating to lubricants and the production thereof
IPC: C10G17/06
Filed: 1936-03-06
Abstract: "White" oils of viscosity 4--15 DEG  E. at 50 DEG  C. suitable for lubricating internal - combustion engines, are prepared from mineral oils by treating with sulphuric acid in stages between each of which the sludge is removed, the temperature at no time being allowed to rise above 30 DEG  C.  The acid treatment may be preceded by treatment with solvents, and followed by treatment with adsorbents. 0,1--2,0 per cent of fat or fatty oil may be added to the product. In an example, 100 kg. of a raw oil of naphthene basis is treated with 40 kg. of sulphuric acid containing 5 per cent of SO3 in successive portions of 5 kg., and then neutralized, washed, and bleached with fuller's earth.  Specifications 347,164 and 390,697 are referred to. According to the Provisional Specification a machine oil or machine oil distillate, preferably of B.P. above 350 DEG  C., is treated to the desired extent with sulphuric acid, solvents, or adsorbents.
Patent GB-178273-A (GB)
Title: Improvements in apparatus for calculating the ground speed of aircraft
IPC: G06G1/02
Filed: 1921-03-02
Abstract: 178,273. Capon, R. S. March 2, 1921. Slide-rules of the superposed-disc type for calculating the ground-speed of aircraft from the height, drift-angle, and time for an object to pass from a forward to a rear sighting-line, comprise one member 4 having a pair of logarithmic scales 5, 6 representing ground-speed and time, and a second member 1 having scales 2, 3 representing the logarithmic of the height and the logarithmic secant of the drift-angle, the latter scale being adjustable with regard to the height scale according to different settings of the sights. An Appleyard time and distance dial may be fitted to the instrument.
Patent GB-439415-A (GB)
Title: Direction-signalling apparatus for personal wear
IPC: G08B5/36
Filed: 1934-03-05
Abstract: 439,415. Signals carried by road users. FRAKO, KONDENSATOREN-UND APPARATEBAU GES., Teningen, Baden, and NIETZELDT, W., 16, Schinkestrasse, Berlin, both in Germany. March 5, 1934, No. 6896. [Class 118 (ii)] A signal for attachment to the wrist or hand of a road user comprises a lamp arrangement embodying a switch operated by stretching a finger or the like and a main switch for breaking the circuit when the apparatus is not required for use. As shown in Fig. 2 when the main switch 5 is closed the battery 4 and lamp 3 are connected in circuit with the contact 6 so that when the lever 6 is moved the circuit is completed and the lamp 3 is lit. As shown in Fig. 5, the switch 6 of Fig. 2 is replaced by the normally closed switch 11 which is opened when the finger is bent. The casing in both embodiments is in the form of a wrist watch and the light is arranged to shine through the face.
Patent GB-184519-A (GB)
Title: Improvements in or relating to sensitive film supports for x-ray photography
IPC: G03C5/17
Filed: 1921-03-02
Abstract: 184,519. Luboshey, N. E. March 2, 1921. Sensitized plates and films.-The base or support of a film for X-ray photography is made of a material such as gelatine, glue, gum, celluloid, or collodion, in which is incorporated throughout the depth a salt or solution used in the preparation of intensifying screens, such as calcium tungstate or barium platino-cyanide. The base may be coated on one or both sides with emulsion.
Patent GB-1423985-A (GB)
Title: Pharmaceutical compositions containing bischromonyloxy compounds
IPC: A61K31/35
Filed: 1972-02-15
Abstract: 1423985 Medicines comprising bischromonyloxy compounds FISONS Ltd 2 Feb 1973 [15  Feb 1972] 6911/72 Heading A5B Compositions for the treatment of disorders of the gastrointestinal tract comprise a diluent or carrier and 1, 3-bis [2-carboxychromon-5- yloxy] propan-2-ol or a pharmaceutically acceptable salt, C 1-10  alkyl ester, amide or mono- or di-C 1-10  alkyl substituted amide thereof, the compositions being in the form of a tablet, dragee, syrup, suppository, sterile solution or suspension. The compositions may be in sustained release or euteric coated form or, in the case of syrup, solution, suspension or powder, contained in a hard or soft capsule. Reference has been directed by the comptroller to Specification 1144905.
Patent GB-286647-A (GB)
Title: Improvements in and relating to electric meters
IPC: G01R11/36
Filed: 1928-03-06
Abstract: 286,647. British Thomson-Houston Co., Ltd., (Assignees of Kinnard, I. F.). March 7, 1927, [Convention date]. Induction motor meters are corrected for light loads by so forming the series magnet 14 that it varies in cross-section, for example as shown in Fi.s 4 - - 7, so that different portions simultaneously operate at different flux densities below saturation. The cores may be formed of silicon steel, and an adjustable vane 12, Fig. 4, may be provided for correction of the flux of the shunt magnet for light loads. Specification 281,250 is referred to.
Patent GB-237528-A (GB)
Title: Improvements in the manufacture and production of formamide
IPC: C07C233/01
Filed: 1925-03-14
Abstract: Formamide is prepared by passing the vapour of ammonium formate or formic acid together with free ammonia, and with or without water, over a contact mass heated to a temperature between 100 DEG  and 200 DEG  C.  The contact mass is preferably a dehydrating agent, e.g. bauxite, and is heated to a high temperature before use.  The formamide can be separated from the reaction gases by fractional cooling.
Patent GB-359854-A (GB)
Title: Improvements in or relating to internal combustion engines with solid injection
IPC: F02M63/00
Filed: 1931-03-06
Abstract: 359,854. Oil engines. SULZER FR’RES SOC. ANON., Winterthur, Switzerland. March 6, 1931, No. 7016. Convention date, April 7, 1930. [Class 7 (iii).] In an engine of the airless injection type having a plurality of fuel nozzles f supplied by a pump from a common feed pipe d, a fluid-pressure actuated valve e controls the flow to the separate fuel pipes g, thereby preventing oscillation of the columns of liquid in the different branches of the nozzle supply pipes.
Patent GB-291545-A (GB)
Title: Improved construction of radiator
IPC: F24H3/00
Filed: 1927-03-14
Abstract: 291,545. Norris, F. A., and Gadsdon, H. A. March 14, 1927, Electric radiators.-Radiators of the type constructed from two sheets of metal A, B, secured together at a short distance apart, one or both sheets having a trough-like margin C to form a channel when the two are assembled, are rendered self-contained by the provision of an electric immersion heater J in a column K connected to the radiator, or alternatively in the channel C itself, as shown in Fig. 2. In the latter case a column is found by a partition or baffle I between the plates A, B. The outlet pipe may be connected to other radiators, provided or not with heating-means.
Patent GB-1176863-A (GB)
Title: Process for the production of Cold-Rolled Steel Sheets having Excellent Press Workability
IPC: C22C38/14
Filed: 1967-02-15
Abstract: 1,176,863. Making metal sheets. YAWATA IRON & STEEL CO. Ltd. 15 Feb., 1967 [17 Feb., 1966], No. 7172/67. Heading B3A. [Also in Division C7] Cold-rolled steel sheet, which is suitable for press working, is produced by hot-rolling to a temperature greater than 780 C., a steel comprising 0À001-0À020% by weight C, less than 0À45% Mn, less than 0À015% O 2 , 0À02- 0À5% Ti, other than Ti-oxides, the balance Fe and unavoidable impurities, with the Ti content being greater than four times the C content, cold-rolling it with a greater reduction than 30%, and then annealing it at a temperature of from 650-1000 C. The annealing step can comprise box or open coil annealing at a temperature lower than 900 C., or continuous annealing at from 750 to 1000 C.
Patent GB-1389663-A (GB)
Title: Triazine compounds useful as textile softening agents
IPC: D06M13/358
Filed: 1971-03-18
Abstract: 1389663 Triazine terminated polyethers UNILEVER Ltd 16 March 1972 [18 March 1971] 7179/71 Heading C3R [Also in Division D1] Novel compounds of the formula wherein A denotes ethenoxy, propenoxy, 1,2- or 2,3-butenoxy or a combination thereof, V, W, Y and Z denote halogen, -OH, -NRR 1  or -OR 1 , provided that at least one of V, W, Y and Z denotes halogen and at least one also denotes -OR 1  or -NRR 1 , R denotes hydrogen or a C 12-30  linear or branched chain alkyl group, R 1  denotes a C 12-30  linear or branched chain alkyl group and n is 1 to 80, are prepared by reacting cyanuric halide with an appropriate alkylene or polyalkylene glycol or a derivative thereof to form an intermediate compound which is further reacted with appropriate amounts of alcohol R 1 OH, amine HNRR 1  or other conventional reactants. Alternatively the cyanuric bromide or chloride may be reacted first with the alcohol or amine reactant. Uses.-The above products may be used in aqueous or halohydrocarbon solution, dispersion or emulsion to impart a soft handle to textile materials.
Patent GB-722732-A (GB)
Title: Improvements in or relating to the manufacture of cycle wheel hub shells
Inventor: WINSPER THOMAS
IPC: B21D53/86
Filed: 1953-03-17
Abstract: 722,732. Vehicle wheels. PHILLIPS & CO., Ltd., J. A. March 17, 1953 [March 22, 1952]. No. 7459/52. Class 144 (1). [Also in Group XXII]. A cycle wheel hub is formed from two tubular medial parts 10 and two tubular end parts 11 each having a radially outwardly directed flange 13 or 19 respectively at one end, the parts being first assembled in co-axial pairs to provide two half shells each comprising an end part 11 and a medial part 10 the flanges 19, 13 of which are projection welded together, and the two half shells then being welded together with the barrel portions 12 of the medial parts 10 aligned and abutting to provide a hub shell having a central barrel 12 with a radial flange 23, Fig. 2, at each end and a tubular portion 18 projecting axially outwardly from each flange. As shown the tubular portions 12 of the medial parts have chamfered ends 24 to facilitate welding and the flanges 13 are each formed with a projecting central boss 15 which seats into a central recess 21 in the flange 19 of the adjacent end part. The abutting face 20 of each flange 19 is formed with annular projections 22 near its inner and outer peripheries for use in projection welding of the flanges 13, 19 to form the flanges 23 of the assembled hub shell. Alternatively the projections 22 may be formed on the flanges 13 or on both the flanges 13 and 19. The flanges 23 of the assembled hub shell are pierced to provide spoke holes 27 and bearing cups 26 are forced into the tubular ends 18. One end portion 18 is externally screw-threaded, 28, for all or part of its length and a spacer ring 29 may be passed thereover to abut the flange 23. In an alternative arrangement the barrel portion 12 of each medial part may be flared outwardly to provide a conical bearing housing where it joins its flange 13.
Patent GB-115704-A (GB)
Title: Improvements in or connected with Aeroplanes.
Inventor: SAUNDERS SAMUEL EDGAR
IPC: B64C3/56
Filed: 1917-05-24
Abstract: 115,704. Saunders, S. E. May 24, 1917. Planes, arrangement of.-The planes of an aeroplane are made detachable from the fuselage as an integral structure by forming a gap in the wing structure which is slipped over the fuselage from above or below or over one end. Fig. 1 shows one form in which the inner struts of the plane structure carry a saddle-piece b which fits over the fuselage, the ends of the lower spars being secured in sockets on the fuselage by pins or bolts. Fig. 6 shows a modification in which the two halves of the plane structure are hinged at f, and the spars of the lower planes have spigot ends h provided with lateral pins adapted to engage bayonet-slots in sockets g on the fuselage. The sockets g are simultaneously turned to lock all the spars in position by interconnected levers. Figs. 13 and 14 show the modification in which the fuselage is introduced from above the planes. The fuselage t has a supplementary framing u, and interfitting guide-strips x, are formed respectively on the plane struts s and on the framing t, u. The framing u carries the central portion of the upper plane, and has flanges w which are secured to the plane structure by bolts. A modification is described in which the fuselage is slipped into a rectangular opening in the plane structure and secured against longitudinal movement by a forked lever adapted to engage one of the lower spars.
Patent GB-1267882-A (GB)
Title: A method for preparing gallium arsenide by epitaxial growth
Inventor: MATSUI TOSHIRO
IPC: C30B19/06
Filed: 1970-02-17
Abstract: 1,267,882. Crystallizing gallium arsenide. TOKYO SHIBAURA ELECTRIC CO. Ltd. 17 Feb., 1970 [19 Feb., 1969; 8 May, 1969], No. 7497/70. Heading BIS. [Also in Divisions C1 and H1] Gallium arsenide is prepared by epitaxial growth on the surface of a single crystal GaAs substrate having a crystal orientation [311] with +4‹ tolerances. The team [311] is stated to include equivalents thereto. The epitaxial growth may be brought about by either vapour growth or liquid epitaxy. In the latter case the apparatus shown is used in which molten gallium 31 or GaAs 32 are placed in an inclined boat 27 at the opposite end to a substrate 33. On tipping the quartz tube 22 the molten gallium or GaAs flow down and cover the substrate and on cooling GaAs is deposited.
Patent GB-1277365-A (GB)
Title: Process for reducing the sulfuric acid content of alkylarylsulfonic acids
IPC: C07C303/42
Filed: 1970-02-17
Abstract: 1277365 Alkyl aryl sulphonic acids LABOFINA SA 17 Feb 1970 [5 Nov 1969] 7611/70 Heading C2C A process for reducing the sulphuric acid content of alkyl arylsulphonic acids having a molecular weight between 300 and 650 comprises treating these sulphonic acids with a neutralization agent selected from ammonia and ammonium salts of acids one valency at least of which having an acidity equal to or lower than that of the alkyl aryl sulphonic acids, the amount of the neutralization agent employed being such that the number of equivalents of ammonia or ammonium salt added, be equal to the sum of the number of moles of the sulphuric acid content and of between 0 and 30% of the number of moles of alkylaryl sulphonic acids and separating the resultant crystalline ammonium hydrogen sulphate. In examples sulphonic acids in admixture with sulphuric acid are treated with ammonium carbonate, gaseous ammonia and diammonium sulphate, and the ammonium hydrogen sulphate formed is filtered off. Starting materials employed in the examples include products obtained by reacting a polypropylenebenzene alkylate with oleum, a branched chain dodecyl benzene with oleum and dodecyl benzene with sulphuric acid.
Patent GB-558620-A (GB)
Title: An improved injection-moulding machine for plastic substances
IPC: B29C45/06
Filed: 1942-06-04
Abstract: 558,620. Injection-moulding machines. FORD MOTOR CO., Ltd. (Ford Motor Co.). June 4, 1942, No. 7626. [Class 87 (ii)] Moulds 21, 22 which are supported upon an intermittently-rotating table 11 and brought in turn beneath an injection cylinder 45, are closed by travelling cam-operated linkages just before they reach the cylinder and held closed by fixed hydraulic rams during injection of thermosetting resin therein. Each filled mould, after it leaves the cylinder and the rams, is held closed for a time by the linkages to permit curing, then opened to allow removal of the moulded article, and finally closed, the cycle being repeated indefinitely. Each upper mould part 22 is carried by tension rods 26 connected to a beam 27 joined by a toggle 30, 31 to trunnions 29 formed on the underside of the table 11. The toggle link 31 has an arm 32 carrying a roller 33 riding in a cam-track 34. Operation : (1) From rest, the table 11 rotates through 30 degrees and stops, an empty mould being thus positioned below the injecting cylinder ; the toggle connected to the said mould is straightened and the upper part 22 is held down on the lower part 21, as shown in Fig. 3. (2) Hydraulic rams 43, acting through a plate 44, first seat the (spring-pressed) injection nozzle in the mould seating and then press on the mould and hold it closed. The thrust is taken by a step 41. (3) A tubular hydraulic ram 48, sliding over a solid core 51, fills the mould. (4) The rams 43, 48 ascend. (5) The table rotates through a further 30 degrees, and the second empty mould is filled, and so on. (6) When the first-filled mould has moved six or seven stations, i.e., 180 or 210 degrees from the injection cylinder, the cam-track 34 raises the mould part 22 (see Fig. 2) by counter-clockwise pivoting of the toggle-link 31. As this link pivots, a cam 39 thereon raises a plunger 38 carrying a plate 37 having knock-out bars 36, which eject the moulded article. (7) The mould part 22 is held raised for three or four more stations, to enable the operator to remove the moulded article, clean the dies and instal inserts. The inserts may be held in openings in the ends of the knockout bars 36, being drawn downwardly to their proper positions as the mould closes. (8) The mould closes, and the cycle is repeated.
Patent GB-412355-A (GB)
Title: Improvements in or relating to wheel brakes particularly for motor cycles
IPC: B62L3/00
Filed: 1933-03-13
Abstract: 412,355. Brakes. AKTIESELSKABET FISKER & NIELSEN, and FISKER, P. A., 30, Peter Bangsvej, Copenhagen. March 13, 1933, No. 7639. [Class 103 (i).] An internal shoe brake, particularly for motorcycles, comprises one or more shoes 11 U-shaped in cross-section, pivoted at 9 on a fixed plate 3 and applied to the drum 2 by the engagement of cams 17 on a hub 16 pivoted on the axle 5, with rollers 15 carried by the shoes ; the rollers being disposed centrally between the ends of the brake surfaces of the shoes. The hub 16 is provided with an operating lever 18. As shown by the broken lines at 171 the cams may be arranged to turn in the reverse direction to apply the brake and may have a plane surface. The rollers may be carried by the member 16 and the cam surfaces be formed on the shoes. The rollers may be replaced by balls. As applied to a motor-cycle the fixed plate 3 may be anchored to the wheel fork by a screw.
Patent GB-918554-A (GB)
Title: Improvements relating to demodulators
IPC: H03D3/14
Filed: 1960-03-04
Abstract: 918,554. Phase sensitive circuits. UNITED AIRCRAFT CORPORATION. March 4, 1960 [March 4, 1959], No. 7767/60. Class 38 (4). Two transistors are arranged to demodulate an A.C. signal to provide either a D.C. output only when the signal is in phase with a reference, or to provide a D.C. signal of reversible polarity depending upon the phase sense. In one embodiment, Fig. 1, the signal is applied by a centre-tapped transformer 38 between base and emitter of a push-pull pair of transistors 32, 34, and the reference signal is applied over rectifiers 54, 56 between emitters and collectors by a centre-tapped transformer 50. When both signals are in phase, the transistors conduct on alternate half-cycles to produce a unidirectional signal across a load resistor 58. When the signals are in anti-phase nothing conducts. In the second embodiment, Fig. 2, the signal from transformers 60, 62 is applied in the same phase to the base/emitter circuits of transistors 64, 66 and the reference signal is applied from transformer 68 to the emitter/collector circuits in opposite senses. When the signals are in phase, transistor 64 conducts and gives a half-wave output of one polarity across load resistor 70, and when the signals are in anti-phase, transistor 66 provides an output of reverse polarity.