baber/WOPTO huggingface dataset:
Patent GB-903335-A (GB)
Title: Preparation of citral
IPC: C07C29/42
Filed: 1959-03-06
Abstract: The invention comprises the new compounds 2,6-dihydroxy-2-6-dimethyl 8-dialkoxyoctanes and their use in the preparation of citral.  Citral is prepared by condensing acetone and a propargyl halide in the presence of zinc and under anhydrous conditions to form an organo-metallic complex, hydrolysing this complex by the addition of water, a dilute aqueous acid or an aqueous ammonium salt to form 4-hydroxy-4-methyl-1-pentyne, condensing this with a 4,4-dialkoxy-2-butanone in the presence of a Grignard compound to form an organo-metallic complex, hydrolysing this by the addition of water, a dilute aqueous acid or an aqueous ammonium salt to form a 2,6-dihydroxy-8-dialkoxy-4-octyne, catalytically hydrogenating this compound with 2 molar proportions of hydrogen to form 2,6-dihydroxy-2,6-dimethyl-8-alkoxyoctane and dehydrating and hydrolysing this compound by known methods to citral. Alternatively the organo metallic complex resulting from the condensation of acetone and a propargyl halide in the presence of zinc and under anhydrous conditions may be condensed directly with a 4,4-dialkoxy-2-butanone in the presence of a solvent for the Grignard compound without first hydrolysing the complex.  The zinc may be activated with iodine, an iodine compound or a copper compound and, if desired, the acetone and propargyl halide may be condensed in the presence of a substantially inert solvent, preferably at its reflux temperature.  The 2,6-dihydroxy-2,6-dimethyl-8-dialkoxyoctane may be converted to citral by heating with an ionisable acid, preferably in the presence of an organic base.  Alternatively, the 2,6-dihydroxy2,6-dimethyl-8-dialkoxy-octane may be converted to citral by a two-stage process consisting of first converting it to a 2,6-dimethyl-8-alkoxy-2,5,7-octatriene by means of an acidic halogenide and then converting this to citral by reaction with an ionizable acid.
Patent GB-436351-A (GB)
Title: Improvements relating to razors
IPC: B26B21/16
Filed: 1935-03-13
Abstract: 436,351. Safety razors. HANSON, K. C., Abington, High Pine Close, Weybridge, Surrey. March 13, 1935, No. 7819. [Class 30] Relates to razors of the kind comprising a permanent or semi-permanent blade which when in use is rigidly mounted on a handle with its cutting edge in a transverse position. According to the invention, the blade is mounted so that it can be located in the operative position or in a longitudinal plane passing through the handle, the blade being positively located against displacement by such forces as arise during stropping. In the form shown in Figs. 4 and 5, the wedge-shaped blade 1 is provided with crossing grooves 10, 11 and is pulled by a spring 8 acting on a stud 9 on the blade into engagement with the rounded surface of the handle 3, so that the blade is positively located parallel or transversely to the handle but may be moved from one position to the other by hand. The U-shaped guard 5 is pivoted at 12 to the blade, and may normally snap to and fro past the edge of the blade to positions determined by the ballended lever 16 located in recesses in the guard and blade. When, however, the blade is moved to the chain-line position, Fig. 4, a projection 17 on the guard enters a recess in the handle 3, and the guard is locked in a position in which it covers the edge of the blade to permit carrying. If the blade is inverted from the dotted position, the projection 17 is free and the guard may snap to and fro to permit stropping. In the form shown in Fig. 8, the blade 1 is mounted on bearing flanges 19 rotatable in the handle 3 and is squared at 18 to engage a spring-pressed plunger 20. The guard is springy and rotates on conical bearings 23, Fig. 11, entering recesses in the blade. The arm 5 of the guard is cranked at 17<a> to engage a recess 24 in the blade to limit the rocking of the guard. The end of the part 17<a> is squared to engage a straight recess 25 in the handle 3 to locate the guard in the position in which it protects the blade. In a further form, the rocking movement of the guard is limited by pins projecting from the side of the blade.
Patent GB-574998-A (GB)
Title: Improvements in or relating to marine power plant for torpedo boats and the like
IPC: B63H5/10
Filed: 1943-05-17
Abstract: 574,998. Power plant. FAIREY AVIATION CO., Ltd. May 17, 1943, No. 7840. Convention date, May 16, 1942. [Class 7 (ii)] [Also in Group XXXIII] A marine propulsion system for torpedoboats and the like comprises two internal - combustion engine units A, B, Fig. 1, joined end to end with an interposed gear housing 2, the crankshaft ends 30, 32 of the engine units extending into the gear housing and being connected by gearing so that each unit drives one of two concentric propeller shafts 54, 42, driving contra-rotating propellers, one of which is provided with pitch-changing gearing driven by a shaft 66 enclosed by the propeller shafts. Each unit consists of two six-cylinder engines arranged side by side, and has two side facings 6 for attaching either closures or ,superchargers driven from bevel gearing 10. Means may be provided for closing the normal carburetter throttles 24 when the superchargers are clutched in. The lower end of the gear housing has an extension 56 carrying an electric motor 4 driving the shaft 66 which carries a gear 86 connected through planetary gears 78 with an external gear on the propeller hub 84. Gears 88 on the planet carrier engage a stationary gear 86 and an external gear on a sleeve 92 connected through gears 96, 100 to a propeller blade. When the motor 4 is actuated the sleeve 92 is rotated in the hub, thus rotating the blade on its axis and altering the pitch. The other blades on the propeller have similar pitchchanging gear.
Patent GB-1510100-A (GB)
Title: Vaccines
IPC: C12N7/00
Filed: 1977-02-24
Abstract: 1510100 Newcastle disease vaccine RECHERCHE ET INDUSTRIE THERAPEUTIQUES 24 Feb 1977 [1 March 1976] 07850/77 Heading A5B An improved vaccine against Newcastle disease and administrable in the form of an aerosol comprises a pharmaceutical diluent for aerosol administration and an effective dose of an attenuated cold strain obtained from a Newcastle disease virus strain by mutagenesis thereof.
Patent GB-661274-A (GB)
Title: Improvements in and relating to the electrolytic treatment of metallic surfaces
IPC: C25F3/14
Filed: 1948-03-17
Abstract: 661,274. Electrolytic treatment of bearing surfaces. MONOCHROME, Ltd., and WILSDON, S. C. March 17, 1949 [March 17, 1948], No. 7934/48. Class 41. An electrolytic process for the production of metallic bearing surfaces having lubricant-retaining recesses or grooves therein comprises constituting the bearing surface as one electrode and forming the recesses or grooves therein by, and in a pattern corresponding to, the pattern of the surface of the other or patterncontrolling electrode, the surface of which comprises areas of non-conducting material which is resistant to the electrolyte and areas of conducting-material which do not project beyond the areas of non-conducting material. In the arrangement shown in Fig. 4, electrolyte 3 is confined between a cylindrical bearing- surface 1 and an electrode 2 which is provided with non-conducting areas 5. With the electrode 2 used as anode and the bearing-surface 1 as cathode, projections 7 are formed opposite the conducting areas 6 of the electrode 2. The electrode 2 may then be displaced so that the areas 5 are opposite the projections 7 and the current reversed, whereby etching takes place on the parts of the bearing surface 1 between the projections 7. In a modification, the pattern-controlling electrode may be provided with non-conducting material by painting or spraying or by means of transfers to form a suitable pattern, or it may be coated with non- conducting material, areas of which are subsequently removed by mechanical or by a photomechanical process. The bearing-surface after having been formed with projections by electroplating may be etched electrolytically or chemically over the whole surface or may be masked over the projections and the remainder of the surface etched. Specifications 561,788 and 661,273 are referred to.
Patent GB-919761-A (GB)
Title: Improvements in spinning or doubling frames
IPC: D01H1/16
Filed: 1959-03-09
Abstract: 919,761. Ring spinning &c. machines. ALLGAUER MASCHINENBAU G.m.b.H. March 9, 1959 [March 7, 1958], No. 7990/59. Class 120 (2). A ring spinning or doubling frame with fixed spindle rails has the spring pieces secured in their upper portions by rods and in their lower portions by spindle rails fastened to the lateral edges of the spring pieces. Each spring piece 2 is connected to another spring piece or to the headstock 1 by rods 3 and spindle rails 4 and carries identical elements to other spring pieces, such as driving shaft bearings 6, roller stands 5, creel brackets 8 and poker guides 9 and their brackets. Ring plate carriers 10 on the two sides of the machine are connected by a stirrup 12 and are reciprocated through a chain 14. The ring plate carriers also act as supports for thread guides 15 and anti-ballooning rings 16, 17. To allow the doffing of bobbins, collars 20, 21 can be moved upwards on the rods 18 by means of endless chains 25, and thread guides 15 and anti-ballooning rings 16, 17 can be swung upwards to assume a vertical position.
Patent GB-268350-A (GB)
Title: A new or improved pneumatic clock installation
IPC: G04B1/26
Filed: 1927-03-23
Abstract: 268,350. Fischer, M. March 23, 1926, [Convention date]. Pneumatic clocks; winding- apparatus.-In a clock system in which the secondary clocks are advanced pneumatically, there is provided a sealed container 1 having an electric heater 2 inside for producing compressed air which, through pipes 13, 14, is used to wind up the master clock spring 8 and to advance secondary clocks 18, 19. The heater is coupled at 3 to an electric light circuit, the heater circuit 4 being closed at 5 for a few seconds once each minute by a cam 20 on the escape wheel of the master clock. A piston 12 is thus raised once a minute to cause a pawl 10 to wind the ratchet of spring 8 one tooth, and at each secondary clock a piston 15 and pawl 17 advance the hands one step intermittently.
Patent GB-949171-A (GB)
Title: Apparatus for bending beams of charged particles
IPC: G21K1/093
Filed: 1960-03-07
Abstract: 949,171. Particle accelerators. VARIAN ASSOCIATES. March 7, 1960 [May 9, 1959], No. 8066/60. Heading H1D A beam bending and scanning assembly for use with a particle accelerator producing a beam of charged particles of different energies consists of a beam bending magnet 22, Fig. 1, with polepieces on opposite sides of the beam and so arranged that particles of greater energy are forced to travel over longer paths than particles of lesser energy, particles of all energies being deflected through the same angle. As shown, the output surface 29 of the bending magnet is inclined to the axis of the beam. The input surface 28 is also inclined to compensate, by the focusing action of the fringe field at this surface, for the defocusing action of the fringe field at the output surface. Both surfaces 28 and 29 may be formed by the plane surfaces of rotatable semi-cylindrical inserts in the polepieces so that the inclinations of these surfaces can be adjusted. The inserts for the input surface can be adjusted simultaneously or separately or interchangeable inserts may be used. The entire bending magnet may be tilted. The scanning magnet 38 which is claimed independently in Specification 949,172 has concave and convex pole faces 41, 44 shaped to set up a flux density gradient across the gap so that particles of different energies, on opposite sides of the beam, are scanned through the same angle. The pole faces may be hyperbolic, semi-cylindrical or V-shaped in horizontal cross-section or curved in a vertical direction. The beam 11 emerging from a linear accelerator 12 passes into an evacuated chamber 13 comprising a horizontal tube 14 with a downwardly extending branch 15 which merges into the flared scanner section 16. A window 19 is also provided at the end of an extension of the tube 14. Portions of the chamber 13 subject to particle bombardment are lined with liquid-cooled aluminium. The chamber 13 is mounted for rotation in a rotatable coupling 18. A quadrupole focusing magnet 21 is mounted on the tube 14. The focusing magnet 21 and the deflecting and scanning magnets 22, 38 are mounted in a housing 49 which is also mounted for rotation in the coupling 18. The housing 49 may be an evacuated chamber with a flared end, thus eliminating the need for chamber 13. Triangular or sawtooth waveforms may be applied to the scanning magnet to produce a zig-zag pattern or a pattern of parallel lines across a package 48 which is moved beneath the scanning beam. In a modification, Fig. 8, the scanning is effected by oscillatory mechanical movement of the beam bending magnet 95. The magnet yoke 96 is rotated in ball bearing sleeves 97 about the axis of the beam 11 and movement is imparted to the yoke by means of a motor driven flywheel 101 connected to the yoke through a rod 98 pivoted at 99 and 101. The beam particles may be electrons or protons.
Patent GB-446551-A (GB)
Title: Improvements in electric dry cells
IPC: H01M6/08
Filed: 1935-03-15
Abstract: 446,551. Batteries. CULLEN, J. R., 41, South Quaker Lane, West Hartford, Connecticut, U.S.A. March 15, 1935, No. 8072. [Class 53] A dry cell is provided with a central carbon electrode 23 surrounded by moulded depolarizing material 24 consisting of manganese dioxide, graphite, ammonium chloride and zinc chloride, the surface of which is fluted to increase its area as shown in plan in Fig. 3. The second electrode is constituted by the zinc container 13 the bottom of which is provided with a conical filling opening 16. An expansion chamber 19 which also receives the gases evolved during the working of the cell is in communication with the interior of the cell through openings 18, 22. The projecting portions of the depolarizer are separated from the zinc container by insulating strips 38 which are carried by a member 34 which supports the lower end of the carbon electrode. The upper end of the carbon electrode is provided with a metal cap 30 which is secured in place by a wax or pitch layer 32<1>. Electrolyte is filled into the cell through the opening 16 and passes through passages 33 into the grooves in the outer surface of the depolarizer. The opening 16 is then closed by a hollow conical plug 39 shown in Fig. 12 which is provided with pins 41 engaging grooves in the part 16 forming a bayonet joint. The plug is rotated by a tool which engages indentations 44 in the base of the plug. The plug forms an auxiliary expansion chamber and communicates with the chamber 19 through openings 46.
Patent GB-1469934-A (GB)
Title: Bonding of solid lignocellulosic material
IPC: C09J101/00
Filed: 1974-02-22
Abstract: 1469934 Plywood CHEMOTHERM BONDING Inc 24 Jan 1975 [22 Feb 1974 8 May 1974] 8084/74 and 20227/74 Heading B5L [Also in Division C3] Wood veneers are bonded together by applying a bonding composition consisting essentially of a non-cellulosic carbohydrate, a liquid carrier and an acid capable of catalysing hydrolysis of the carbohydrate to a surface of the veneer(s) and pressing the veneers together at an elevated temperature. The carbohydrate may be cellulose, hemicellulose, a sugar, e.g. sucrose or glucose or a starch, e.g. starch contained in wheat or corn flour. A preferred bonding composition comprises substantially equal amounts of sugar and starch. The acid may be sulphuric, hydrochloric, phosphoric or acetic acid which may be used in an amount 1-20% by weight of the carbohydrate. The bonding composition, which may be heated, e.g. to 100-130 C., prior to application, may be applied in an amount to give 2-32 gms. of carbohydrate per 1000 cm.<SP>2</SP> of surface. The surfaces are preferably pressed together at 140-200 C. and at a pressure of 5-25 kg./cm.<SP>2</SP>. The lignocellulosic material may be heated after application of the bonding composition, e.g. to not more than 140 C., and before pressing. In Examples I and III 3 ply plywood is produced from Douglas fir veneers and an aqueous solution containing 25% sucrose, 25% starch (I) or wheat flour (III) and 1% sulphuric acid. In Example II the veneers covered with bonding composition are heated in an oven prior to pressing.
Patent GB-180789-A (GB)
Title: Improvements in machines, or apparatus, for wrapping caramels, or other cakes, slabs, or blocks, and the like
IPC: B65B11/32
Filed: 1921-03-15
Abstract: 180,789. Rose, W., and Rose Bros. (Gainsborough), Ltd. March 15, 1921. Packeting by wrapping-up.-Relates to machines for wrapping caramels &c. of the type in which the caramels are successively pushed from a conveyer against wrappers and passed therewith into moulds in an intermittently rotating wheel, covering three sides of the caramel, a stationary tolder then partly folding down the forward projecting portion of the wrapper, and a movable folder operating to fold the other projecting part beneath the first in a double fold. According to the invention, the movable folder 7, which folds down the part 3<b> beneath the partly folded part 3<a>, is pivoted at 36 on an oscillating arm 37 and is provided with a tail 39 with a roller 41 kept in contact with a cam-surface 42 by a spring 40. The cam-surface is shaped so as to cause the folder 7 to move parallel to the side of the caramel during its folding stroke. The arm 37 is operated by a cam on the driving shaft 25 through a connecting-rod 38 which may be adjustable in length. On further rotation of the mould-wheel 5, the folding is completed by an extension 8 of the stationary folder 6.
Patent GB-1175761-A (GB)
Title: Volume Flow Regulator for Fluids
IPC: F16K15/08
Filed: 1967-02-21
Abstract: 1,175,761. Fluid regulation. DANFOSS A/S. Feb.21, 1967 [March 18, 1966], No.8123/67. Heading G3H. Throttling device for regulating fluid-flow to give constant flow over a wide upstream pressure range, comprises a set of leaf-spring members 11, 12, 13 which are fastened together at the centre and deformed progressively toward an abutment surface 7. The ends of the springs are slotted at (14, Figs.2 and 3, not shown). The spring 11 nearest the surface 7 is initially flat, the next is bent up at the ends as shown, and the third is of arcuate shape. The set is retained by a circlip 9. The abutment surface is formed on a ring 6 adjustable by shims 5. A single conical surface may be used, or in modifications, Figs.4-7 (not shown) intended for flow-rates of 6, 10, 15, and 20 litres/min respectively, the abutment comprises two conical surfaces of different angle, or a combination of one or more flat surfaces (71a, 71c) with a conical surface (72c or 73a).
Patent GB-690272-A (GB)
Title: Improvements in or relating to jet propulsion plants
IPC: F02C3/055
Filed: 1947-03-25
Abstract: 690,272. Jet propulsion plant for aircraft. SOC. RATEAU, and ANXIONNAZ, R. March 25, 1947 [April 2, 1946], No. 8145/47. Class 110(iii) In a jet-propulsion plant for aircraft, Fig. 1, a compressor a is driven by an I.C. engine c. The air-stream from the compressor is divided, part passing over the engine as cooling air on its way to the propulsion jet and the remainder passing directly to the jet. Fuel may be burnt, as at d, e, in either or both streams. The volume of flow in the cooling air-stream is varied by means of an axially-sliding obturator f which may be moved by a servo-motor g, h under the control of a temperature-responsive device k subjected to the temperature of the engine exhaust or of an engine part such as a valve. In a second plant, Fig. 2, the downstream end of the cooling air duct is telescopic and that end is positioned so that the pressures of the cooling air and the outer air-streams are equal where they mix. A second telescopic tube, around the tube l, may be provided which carries an obturator for the outer air-stream. The tube I may be moved by a servo-motor under thermostatic control and the second tube, by a servo-motor under hand control. Specifications 616,349, 617,164, 618,781 and 650,661 are referred to.
Patent GB-164869-A (GB)
Title: Armored cable
IPC: E05B67/00
Filed: 1920-03-19
Abstract: 164,869. Johnson, C. L. March 19, 1920. Mounting and securing reserve tyres on vehicles.-A tyre lock for automobiles is shown in Fig. 4, in which is employed a cable 2 protected by a series of rings 3, Figs. 4 and 5, placed around it and provided with spherical contactsurfaces, which allow the cable to bend. The cable is made of stranded steel wire, and the rings are made of case-hardened steel. The ends of the cable are passed through hollow terminals having countersunk holes, so that the ends of the cable may be spread out and secured by welding, soldering, brazing, &c. The external form of the rings may be varied as desired.
Patent GB-881025-A (GB)
Title: Method of and apparatus for influencing the output state of steam in at least two reheaters of a steam generating plant
IPC: F22G5/00
Filed: 1959-03-10
Abstract: 881,025. Fluid-pressure servomotor control Systems. SULZER FRERES S.A. March 10, 1959 [March 12, 1958], No. 8234/59. Class 135. [Also in Group XIII] In a steam generating power plant, Fig. 5 (see Group XIII) a servomotor 153 controls a valve 118 which distributes the steam issuing from a first part 114 of a medium-pressure reheater between a heat exchanger 116, located at the input end of a low-pressure reheater 126- 128, and a by-pass 119 leading to a second part 122 of the medium-pressure reheater. A piston 159 in the servomotor 153 takes up a position depending upon the difference in steam temperatures in lines 123, 129 leading respectively from the medium and low pressure reheaters the corresponding opposing ends of the motor 153 being connected by lines 151, 152 to pressure cylinders 147, 148 which are influenced by temperature-sensitive elements 136, 137 interposed in the lines 123, 129. The outputs of the pressure cylinders 147, 148 are added in a doubleacting piston and cylinder unit 156, 157 which regulates a swivel burner 108. Fig. 6 shows an arrangement in which reheaters 114, 122 and 127, 128 incorporate mutual heat exchangers 116, 116a with associated control valves 171, 172 which are regulated, in opposite sense, by a servomotor 153 connected to pressure cylinders which are under the influence of temperaturesensing elements located at the output ends of the reheaters.
Patent GB-416589-A (GB)
Title: Improvements in or relating to the sleeve-valves of internal-combustion engines
IPC: F01L5/10
Filed: 1933-03-18
Abstract: 416,589. Locking nuts. BRISTOL AEROPLANE CO., Ltd., and FEDDEN, A. H. R., Filton House, Bristol. March 18, 1933, Nos. 8274 and 28750. [Class 89 (i).] In actuating-mechanism for engine sleeve valves the nuts may be locked by a bar 65, Fig. 4, having V-shaped ends for engaging the nuts, unlocking being effected by raising the bar and turning it about a central pivot 67 out of the locking position. To prevent loss of the nuts in assembling or disassembling, a guide tube 71, Fig. 5, is first screwed at 70 to the top of the bolt, so that the nut may be lowered over the tube and screwed up, or unscrewed and removed over the tube.
Patent GB-609023-A (GB)
Title: Improvements in or relating to laminated springs
IPC: B60G11/107
Filed: 1944-07-15
Abstract: 609,023. Ball joints. WOODHEAD & SONS, Ltd., J., ONIONS, J. W., and BROOK, H. July 15, 1944, No. 8345/48. Divided out of 608,937. [Class 65 (ii)] [Also in Group XXXII] Relative movement between. one end of a laminated spring 2 and a ball mounting by which it is supported is permitted by the spring end being slotted and engaging a groove formed in the ball 4. The ball 4 may also have sliding movement relative to its housing 5a by means of a separate slidable bearing member 9 into which the upper side of the ball 4 is recessed. The other end of the spring may be mounted without freedom of longitudinal movement as described in Specification 608,937.