baber/WOPTO huggingface dataset:
Patent GB-1350772-A (GB)
Title: Antibiotics and processes for their production
IPC: C07C69/76
Filed: 1971-01-27
Abstract: 1350772 Cephalosporin compounds MERCK & CO Inc 14 Jan 1972 [27 Jan 1971 17 June 1971 24 Aug 1971 29 Nov 1971] 3295/71 28522/71 39654/71 and 1829/72 Divided out of 1350772 Headings C2A and C2C 3 - Carbamoyloxymethyl - cephalosporin compounds having the general Formula (I) and the corresponding #<SP>2</SP> compounds, and salts and esters thereof, wherein R<SP>1</SP> is hydrogen or an acyl group and R 1  is hydrogen or methoxy, the said compounds being novel when R 1  is hydrogen, are prepared by reacting a corresponding 3- hydroxymethyl - cephalosporin compound, in which if necessary any isocyanate-reactive group other than the 3-hydroxymethyl group is suitably blocked, the bromo- or chloro-sulphonyl isocyanate and hydrolysing the product and if necessary removing any blocking group. The reaction is preferably effected in a polar organic solvent and the hydrolysis is carried out by treatment with aqueous acid. Monobenzhydryl phenylmalonyl chloride is prepared by treating phenylmalonic acid with diphenyldiazomethane followed by alkaline hydrolysis to give monobenzhydryl phenylmalonate which is converted to the acid chloride with oxalyl chloride. Benzyl alcohol is esterified with D-α-aminoadipic acid in the presence of c.H 2 SO 4  to give benzyl - D - 5 - amino - 5 - carboxypentanoate, which is then N-protected by reacting with tbutyloxycarbonyl azide in the presence of MgO giving benzyl - D - 5 - t - butyloxycarbonylamino - 5 - carboxypentanoate. The carboxyl group is protected by reacting the latter with 2,2,2 - trichloroethanol in pyridine, and the resulting benzyl D - 5 - t - butoxycarbonylamino - 5 - (2,2,2 - trichloroethoxy)carbonylpentanoate is catalytically hydrogenated to remove the benzyl ester group. The product, D- 5 - t - butoxy - carbonylamino - 5 - (2,2,2 - trichloroethoxy)carbonylpentanoic acid is reacted with oxalyl chloride to give the corresponding acid chloride. The cephalosporin compounds of Formula I and their #<SP>2</SP> isomers, salts and esters, wherein R<SP>1</SP> is an acyl group, have antibacterial activity and may be used with a suitable carrier, diluent or coating to provide pharmaceutical and disinfectant compositions.
Patent GB-1532827-A (GB)
Title: Method for producing insoluble calcium sulphate anhydrite
IPC: C04B11/05
Filed: 1976-01-28
Abstract: 1532827 Calcium sulphate anhydrite; calcining process UNITED STATES GYPSUM CO 28 Jan 1976 [30 June 1975] 03335/76 Heading C1A Insoluble CaS0 4  anhydrite is produced by introducing finely divided Ca calcium sulphate dihydrate SO 4  particles at ambient temperature and hot gas at 1500-2400‹ F. into a calcining zone; maintaining concurrent linear flow of particles and gas and retaining the particles in the calcining zone for a time sufficient to remove their water of crystallization, preferably 1-5 seconds, and to comminute the particles to give at least fourfold size reduction.
Patent GB-319568-A (GB)
Title: Improvements in or relating to core boxes for use in steel melting furnace holes
IPC: B22C21/00
Filed: 1929-02-01
Abstract: 319,568. Balfour, F. H., and Wood, J. W. B. Feb. 1, 1929. Crucible furnaces; linings.-A core box for use in making crucible holes comprises a number of sections a - - d, shaped to produce the desired internal contour, and having flanged ends a<1> - - d<1> carrying studs or projections a<2> - - d2, which serve to position the end covers e, f. When assembled, the parts are secured by a bolt h and wedge i.
Patent GB-1487705-A (GB)
Title: Supercharged four-stroke diesel engines
IPC: F02B37/00
Filed: 1975-01-27
Abstract: 1487705 Supercharged four-stroke diesel engines SOC ALSACIENNE DE CONSTRUCTIONS MECANIQUES DE MULHOUSE 27 Jan 1975 [1 Feb 1974] 3467/75 Heading F1B The exhaust valves of a diesel engine 1 are kept open for 85 to 150 degrees of the induction stroke and the exhaust back pressure is increased by a valve 3 in the exhaust pipe so that exhaust gases are drawn back into the cylinders. The valve 3 may be controlled in accordance with the fuel supply and intake air temperature and/or exhaust temperature and the flow of intake air may be controlled by a valve 7. The lift of the exhaust valves may be less than the full lift over their open period at the end of the exhaust stroke and during the induction stroke, Fig. 4 (not shown). The exhaust gases in the exhaust manifold may be heated by a heating resistance prior to and for a period after starting or heated air may be supplied to the manifold or to the exhaust pipe 2 between the valve 3 and the turbine 4 of the turbocharger 4, 5. Examples of timing of the opening of the exhaust valves and opening and closing of the inlet valves are given in the Specification and compression ratios of 7, 8 or 12 and supercharging ratios of 3, 5 or 6 are described.
Patent GB-873837-A (GB)
Title: Improvements relating to alloys containing rhenium
Inventor: BAIRD JAMES DOUGLAS
IPC: C22C27/04
Filed: 1957-01-31
Abstract: Alloys having good ductility and high temperature strength contain 10-38 atomic per cent of rhenium and the remainder molybdenum and tungsten, the ratio of the atomic per cent of molybdenum to the atomic per cent of tungsten being greater than unity, the minimum atomic per cent of tungsten being 5. Alternatively where the atomic per cent of rhenium is 20-33 the above ratio may be less than unity, the minimum atomic per cent of molybdenum being 5.  In either of these alloy ranges a part of the molybdenum or the tungsten may be replaced by up to 8 atomic per cent of one or more of vanadium, niobium, tantalum and chromium, without departing from the specified ratios.  Specification 591,420 is referred to.
Patent GB-1377345-A (GB)
Title: Image forming method
IPC: G03H1/34
Filed: 1973-01-23
Abstract: 1377345 Hologram KONISHIROKU PHOTO INDUSTRY CO Ltd 23 Jan 1973 [24 Jan 1972 15 March 1972] 3495/73 Heading G2J A three dimensional hologram showing parallax in one dimension only, is made by first preparing a strip hologram and then by reconstructing a real image and forming a second hologram on a photographic film of conventional dimensions. The image is reconstructed by conventional means and is spread from a strip format by a lenticular screen in known manner. The lenticular screen 34 is, however, modified by the provision of a strip mask 36 1 -36 to stop zeroorder light from degrading the image.
Patent GB-1200022-A (GB)
Title: Improvement in and relating to a fuel cell system
IPC: H01M8/04
Filed: 1968-01-23
Abstract: 1,200,022. Humidifier. UNITED AIRCRAFT CORP. 23 Jan., 1968 [15 Feb., 1967], No. 3597/68. Heading B1R. [Also in Divisions F2 and H1] A humidifier 23 has wicking material (not shown) bonded to the outer walls of aluminium plates 43 and extending into water reservoir 46 which is covered by a gasket seal 47 to ensure the supply of water to all the wicks if the humidifier is tilted from its normal position. Additional water is stored in tank 48. Air enters the unit at 41 and passes over the wicks and is saturated with water vapour, heat being supplied by a heated glycol/water mixture flowing through internal channels in the plates.
Patent GB-269278-A (GB)
Title: New or improved device for securing carpets and the like
IPC: A47G27/04
Filed: 1926-02-09
Abstract: 269,278. Baron, B. B. Feb. 9, 1926. Spiked plates &c.- Fasteners for securing carpets to the floor &c. comprise steel or other metal discs 1 having one or more prongs 3 extending at an angle but with substantiatlly honzontal pointed ends to enter the carpet, and with projections 2 for hammering into the floor, or with holes for screws &c. A corrugated prong projecting from the periphery of the disc or one stamped out of the centre thereof may be used. Specifications 9250/98, 5534/00 and 14304/13 are referred to.
Patent GB-820930-A (GB)
Title: Improvements in or relating to polymeric material
IPC: C08F291/00
Filed: 1955-08-31
Abstract: Polymeric material is made by (1) polymerizing one or more ethylenically unsaturated monomers or (2) forming an "aminoplastic" or a "phenoplast" in the presence of an aqueous colloidal dispersion of a "vinylic filler" and interrupting if necessary the polymerization or condensation before any substantial amount of cross-linking occurs.  The expression "vinylic filler" is defined in the parent Specification.  By "vinylic filler" is meant the homopolymerization and multipolymerization products in the form of substantially rigid particles obtainable from polymerizable substance containing unsatured linkages providing the products therefrom are cross-linked within the particles to a condition of substantially complete insolubility in organic solvents.  The product of the process may be a "graft" polymer.  A very extensive list of "vinylic fillers" is given in the Specification.  Exemplified "vinylic fillers" are copolymers of styrene, divinylbenzene, and 4-vinylpyridine, or methacrylic acid.  The polymerization of the ethylenically unsaturated monomers is generally effected in the presence of a catalyst, e.g. a redox system, and an additional emulsifier such as tallow soap, hydrogenated tallow soap, rosin soaps, alkyl aryl sulphonates, alkyl sulphates, dodecylamine hydrochloride, and polymeric emulsifiers of the type exemplified in the parent Specification.  The catalyst may be potassium or ammonium persulphate, sodium perborate, sodium perchlorate, hydrogen peroxide, benzoyl or acetyl peroxides, cumene hydroperoxide, or diisopropylbenzene hydroperoxide alone or in admixture with salts of iron, cobalt, sodium or potassium pyrophosphate, or sodium sulphite. Azo bis-(isobutyronitrile) may also be used as the catalyst.  The term "phenoplasts" is used in the manner defined by T. S. Carswell in his book entitled Phenoplasts, their Structure, Properties and Chemical Technology, and the term "aminoplastics" in the manner defined by C. P. Vale in his book entitled Aminoplastics.  The phenoplast may be made by condensing phenol or a substituted phenol such as cresol, xylenol, or resorcinol, with formaldehyde, glyoxal, or furfural, in the presence of an acid or basic catalyst.  The aminoplastic may be made by condensing urea, melamine, thiourea, or quanidine with formaldehyde or glyoxal.  The monomers polymerized in the presence of the vinyl filler may be butadiene, 4-vinylpyridine, methylmethacrylate, styrene, methacrolein, or mixtures thereof. In an example, urea is condensed with formaldehyde in the presence of ammonia and sodium hydroxide, and a "vinylic filler" consisting of a cross-linked copolymer of styrene, divinyl benzene and pyridine.
Patent GB-1247675-A (GB)
Title: Improvements in fluid control valves
Inventor: STEWART CHARLES GEOFFREY
IPC: F16K31/40
Filed: 1968-01-24
Abstract: 1,247,675. Valves; fluid pressure brakes. GIRLING Ltd. 30 Dec., 1968 [24 Jan., 1968], No. 3704/68. Headings F2F and F2V. With solenoid 53 de-energized, spring 54 causes pilot valve 49 to close vent passage 47, whereby air from inlet 13 leaking across diaphragm 32 via filter 40 and restriction 38, establishes a pressure balance across the diaphragm such that spring 31 can force closure member 25 on to exhaust seat 22 and off inlet seat 21. The work port 17 can lead to a brakeapplying cylinder of a rail vehicle, and the solenoid can be energized in response to excessive deceleration of a wheel to unseat the pilot valve 49, thereby venting chamber 41 and allowing inlet pressure beneath the diaphragm to raise the latter to connect port 17 to exhaust. Wheel lock is thereby prevented. The electrical supply can derive from a generator driven by the wheel and charging a battery or capacitor. Washer 30 throttles the flow to prevent flutter. In a modification, separate p.t.f.e. bush 48 is omitted and the vent passage is controlled by the lower end of the armature. Disc 55 retains the armature during assembly and anchors sealing diaphragm 57.
Patent GB-1262135-A (GB)
Title: Improvements in table games
Inventor: MILGATE ALWYN BERNARD
IPC: A63D15/00
Filed: 1969-01-22
Abstract: 1,262,135. Table ball game. A. B. MILGATE. 24 March, 1969 [22 Jan., 1969], No. 3716/69. Heading A6H. Equipment for playing a snooker-like game comprises a rectangular, preferably square, board having a surrounding resilient cushion 13, a hole 15 at each corner; two equal groups of differently coloured object balls 18, 19; a striker or cue ball 21 of a third colour, a centre circle 17 marked on the board of such size as. to receive the object balls; a generally annular baulk line marked on the base between the circle and the cushion such as line 16 or a rectangular boundary line; and a cue 22; the object balls all being of the same size and the holes 15 being slightly larger than any of the balls. A single ball 20 of a further colour and the same size as the other object balls may be provided. The cue ball is preferably larger than the object balls. The base of the board may be covered with baize and surrounded by an outer wooden frame 11 receiving an inner frame 12 which forms the cushion 13.
Patent GB-872324-A (GB)
Title: Improvements in or relating to the recovery of uranium
Inventor: CLELLAND DAVID WATSON
IPC: C01G43/00
Filed: 1959-02-03
Abstract: Uranium values are recovered from a magnesium or calcium fluoride slag (arising in the production of uranium from the uranium tetrafluoride) by treating the ground slag with nitric acid and feeding the resulting slurry to a packed, pulsed countercurrent extraction column, the slurry passing downwards as a film over the packing countercurrent to an upflowing organic solvent phase, such as tributyl phosphate or b b 1dibutoxydiethyl ether.  An unpacked disengagement zone is provided beneath the packed zone and the interface between the two phases is in this disengagement zone.
Patent GB-211480-A (GB)
Title: Improvements in and relating to methods of perfecting vacuum in electrical devices
IPC: H01K3/22
Filed: 1924-02-13
Abstract: 211,480. British Thomson-Houston Co., Ltd., (Assignees of Strickland, R. F.). Feb. 15, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Residual gases. - In the process of cleaning- up the vacuum by incandescing the filament in the presence of a getter, the lamps are placed in a high-frequency electrostatic or electromagnetic field. In the apparatus shown in Fig. 1, ordinary alternating-current supply mains 10, 11 are connected through a step-up transformer 12, 13 to a circuit containing a condenser 15, a spark gap 16, and the primary 14 of a Tesla or like coil, tuned to a high frequency. The secondary of the coil is connected to a ring electrode 18 between which and the metal parts 20 of the lamp 21 the desired electrostatic field is obtained. The primary in the high-frequency circuit may be associated with a secondary 33, Fig. in the interior of which the lamp 35 may be @ed for treatment in the electromagnetic field. secondary has a spark gap 34.
Patent GB-264670-A (GB)
Title: Improvements in calender rollers or drying cylinders
IPC: D06C15/00
Filed: 1926-02-11
Abstract: 264,670. Isherwood, N. Feb. 11, 1926. Rollers or cylinders, hollow.-Means for removing water of condensation from inside a roller or cylinder for calendering or drying fabrics &c. comprises a mouth-piece or scoop 4 extending for some distance b c along the interior of the cylinder and gradually merging into a spiral pipe 2, the convolutions of which are gradually smaller towards the cylinder trunnion 5. A second scoop, shown in dotted lines, may be used for removing water when the cylinder rotates in the opposite direction, a self-acting ball valve being arranged in the junction 7<a> of the two pipes 2, 2a near the trunnion 5. A hole 7 in the junction allows escape of water when the cylinder is at rest.
Patent GB-633540-A (GB)
Title: Improvements in dry coal cleaners
IPC: B07B13/00
Filed: 1948-02-11
Abstract: 633,540. Separating and sifting solid materials. BERRISFORD, W. H. Feb. 11, 1948, No. 4064. [Class 117] A dry coal cleaner comprises a sloping table 17 vibrated in the longitudinal direction with a rocking motion to give vertical gradings of coal and dirt, a gap at an intermediate position, a pocket 19 under the gap to trap the dirt, an approach ramp 18 to the pocket, a lip 20 extending over the lower edge of the pocket and an outlet 21 from the pocket underneath the ramp and facing the entrance end of the table. The lower edge of the outlet 21 may be adjustable in height by slidable plate 22 positioned so that in absence of feed the pocket will retain the dirt therein. As shown, the cleaner is combined with a vibrated screening device S for extracting at stepped mesh plates 9, the undersize. and at shorter steeper mesh plates 11, the oversize, while the intermediate size material passes through plates 11 on to plate 12 which directs it to the cleaner table 17. The undersize material passing through plates 9 is directed to lateral troughs which lead it through aperture 16 to the plain surface 14 to mix with the oversize material from plates 11. The screening device S and cleaner table 17 are vibrated in phase opposition from a common shaft 6.
Patent GB-797773-A (GB)
Title: Improvements in or relating to electric lamps
IPC: H01K1/32
Filed: 1956-02-09
Abstract: 797,773. Electric incandescent lamps. INTERNATIONAL POLAROID CORPORATION. Feb. 9, 1956 [March 3, 1955], No. 4066/56. Class 39(2) The bulbs or envelopes of electric incandescent lamps are made either entirely of a polymeric plastic of the vinyl or condensation polymers having a high degree of molecular order and a softening temperature above 80‹C., or comprise a glass envelope with an inner lining or coating of a plastic of the said type. The example shows a "sealed beam" automobile headlamp comprising a front lens portion 12 and reflector portion 14 made entirely of the plastic material, moudded in two parts and force-fitted together around an: interlocking lip configuration A, the leading-in wires 18 having been embedded in the reflector portion 14 during moulding. A reflecting surface, e.g. of vaporized aluminium, may be provided on the inside wall of the reflector portion, or a separate metal reflector may be positioned on the outside surface thereof. The bulb may be evacuated and, if desired, filled with a gas or gaseous mixture. A preferred polymeric plastic is polychlorotrinuoroethylene; other examples are polytetrafluoroethylene, copolymers of chlorotrifluoroethylene and tetrafluoroethylene, vinylidene chloride resins &c., such materials being stated to have the advantage over glass in that they neither adsorb nor absorb gases or water vapour to any significant extent, thereby obviating the cyclical process whereby tungsten from the filament is systematically deposited on the inner wall of the envelope.
Patent GB-124250-A (GB)
Title: Improvements in and connected with Double Plug Ignition Means for Internal Combustion Engines.
Inventor: STANFIELD RICHARD WALTER
IPC: F02P1/00
Filed: 1918-03-08
Abstract: 124,250. Stanfield, R. W. March 8, 1918. Magneto-electric machines.-In igniting systems comprising two plugs in series in each cylinder, the magneto is insulated from the engine and has a return lead connected to a. second sparking plug. The driving sprocket d is mounted between insulating members c, e, the member c carrying also the rotating part of the high-tension distributor. The primary cut-out switch and the advance and retard control are actuated by Bowden wire or other connexion through an insulating bush or the like.
Patent GB-627756-A (GB)
Title: Process of making a furfuryl alcohol resin and the resulting product
IPC: C08G65/36
Filed: 1947-02-13
Abstract: Fusible furfuryl alcohol resins are obtained by adding acid to buffer-free furfuryl alcohol, or a mixture of such alcohol with up to 15 per cent furfural, previously heated to a temperature between 85 DEG  C. and its boiling point, the temperature of the alcohol or mixture and the amount of acid being chosen to initiate and continue the condensation of the alcohol or mixture in the absence of external heating and to establish the boiling point of the reaction mixture below 160 DEG  C., and adding further amounts of acid to maintain the reacting mixture in a boiling condition.  The boiling point depends on the amount of water liberated by condensation before the boiling temperature is reached since, at boiling, water of condensation is produced at the same rate as that at which water is vaporized.  By applying external cooling for a time water is produced in excess of that volatilized, and the boiling point of the mixture is consequently reduced.  In examples: (1) sulphuric acid is added in increments to furfuryl alcohol heated to 94 DEG  C.  After neutralization of the buffer in the alcohol with a rise to 97 DEG C., further additions initiate condensation, the temperature rising to 122 DEG  C., whereafter acid is added in stages to keep the mixture boiling at 119-122 DEG  C. The product is then neutralized and dried; (2) after addition of sulphuric acid to the furfuryl alcohol at 96.3 DEG  C., the temperature rose to 100.6 DEG  C.; more acid is then added in stages, the mixture being kept at 105-109 DEG C. by external cooling until sufficient condensation is produced for the mixture to boil at 107 DEG  C.; further amounts of acid are then added to maintain boiling.  After a reaction period of 34 minutes the solution may be neutralized with caustic soda and distilled to obtain the anhydrous resin.  Specification 595,208 is referred to.
Patent GB-466620-A (GB)
Title: Improvements relating to lenses for spectacles and the like
IPC: G02C7/02
Filed: 1936-02-11
Abstract: 466,620. Spectacle lenses. WINGATE. G. H., and HAMBLIN, Ltd., T. Feb. 11, 1936, No. 4152. [Class 97 (i)] A spectacle lens particularly intended to be used in cases of aphakia comprises a portion 1 having a power of + 8D. or more and of meniscus shape formed about a spherical curve X whose centre approximately coincides with the centre of rotation of the eye, and a portion 2 of different curvature enabling the lens to be carried in a normal frame or giving it a normal outline when worn. The portion 2 may, as in Fig. 5, be inclined forwardly so as to bring the effective part of the lens nearer to the eye. Fig. 6 shows a form in which the lens is extended on the temple side T, the field covering substantially the whole lens. If a rim is used in mounting this form, it is bent back on the temple side to suit the margin of the lens. The radius of the curve X is from 22 to 28 mm.
Patent GB-184201-A (GB)
Title: Improvements in and relating to camp chairs and the like
IPC: A47C4/40
Filed: 1921-02-04
Abstract: 184,201. Dismore, A. V. Feb. 4, 1921. Folding seats; seating-surfaces, attachin.p.- Each transverse rail of a camp chair or the like comprises two wooden sections i and J, a groove k in one engaging a projection l on the other, and a metallic bar g of which the body is detachably enclosed by the sections. An end of the seating material d is passed through a slot h between the sections, round the bar g, and thence round the sections. The bar g is of square cross-section except at the ends, where it is circular and, projects through the side members a, b, c. The ends m of the bar are screwthreaded to receive nuts e. A tongue is preferably provided at each end of the transverse rail to engage a corresponding recess p in the adjacent side member. The side members a, b, c are pivotally connected by headed bolts s associated with washers u, t, sleeves v, and nuts e<6>.