baber/WOPTO huggingface dataset:
Patent GB-1498132-A (GB)
Title: Steroidal 1,4-dioxanes
IPC: A61K31/57
Filed: 1975-01-15
Abstract: 1498132 Steroid [16α,17-b]dioxanes E R SQUIBB & SONS Inc 15 Jan 1975 [16 Jan 1974] 1776/75 Headings C2U and C2C The invention comprises 3,20-dioxo pregnenes having an 11#-hydroxy or 11-oxo group and having at position 16,17 a fused-on 1,4-dioxane or dihydro - 1,4 - dioxin ring. Preferred are the #<SP>4</SP>, #<SP>1,4</SP>, #<SP>4,6</SP> and #<SP>1,4,6</SP> compounds of formula wherein A 1  is selected from (the valence on the left being attached to the 17-oxygen atom); R 1  is H, C 1-8  alkyl, or aryl; R 2  is H, C 1-8  alkyl or aryl-(C 1-8  alkyl); R 3  is C 1-8  alkyl, C 3-6  cycloalkyl, or aryl; R 4  and R 5  are each C 1-8  alkyl, or aryl; P is H, Me or Cl; Q is H, Me or F; X is H or halo; Y is H, Y<SP>1</SP> is OH or Y + Y<SP>1</SP> = oxo; Z is H, halo, OH or acyloxy; the term "aryl" signifying phenyl optionally sub stituted with one or more halo, C 1-8  alky or C 1-8  alkoxy groups. The inventive compounds are prepared from analogous 16α,17α-diol cyclic borates by synthesizing the 16,17-dioxane ring as shown in the reaction scheme infra, and subsequently optionally introducing #<SP>6</SP> unsaturation (e.g. with DDQ) acylating at position 21 (this may also be effected on the intermediates marked * and **), hydrolysing a 21-ester group, or converting 21- OH to 21-halo via a 21-sulphonate (this may also be effected on the intermediate marked **) (R 1 , R 3 , R 4 , R 5  and Z are as above; R 6  is alkyl or aryl; R 7  is alkyl or aralkyl; each X is alkyl or the two X's together are ethylene). Reagents: (a) CH 2 :C(R 1 )N 2 ; (b) (XO) 2 C(R 4 )C(R 5 )N 2 ; (d) THP.O.CH 2 CHN 2 ; (e) m-chloroperhenzoic acid; (f) e.g. periodic acid; (g) e.g. f-toluenesulphonic acid; (h) NaBH 4 ; (i) MeSO 2 Y (Y= halo); (j) NaHCO 3 /DMSO; (k) e.g. HCl; (1) (R 3 CO) 2 O; (m) Fetizon's reagent; (n) e.g. acetic acid; (p) tautomerism. A 16,17-cycloborate is prepared from 21-chloro- 9 - fluoro - 11#,16α,17 - trihydroxypregna - 1,4- diene - 3,20 - dione by reaction with boric oxide in methanol. Potassium phthalimide + α - (bromomethyl) styrene # N - (2 - phenyl - 2 - propenyl)phthalimide # ethyl N - (2 - phenyl - 2 - propenyl) carbamate # ethyl N - nitroso - N - (2 - phenyl - 2- propenyl)carbamate # 2 - phenyl - 3 - diazo - 1- propene (Example 4). 2 - (Tetrahydropyran - 2 - yloxy)acetonitrile # 2 - (tetrahydropyran - 2 - yloxy)ethylamine # N - [2 - (tetrahydropyran - 2 - yloxy)ethyl]urea # N - nitroso - N - [2 - (tetrahydropyran - 2 - yloxy) ethyl]urea # 2 - (tetrahydropyran - 2 - yloxy) - 1- diazoethane (Example 18). Potassium phthalimide + α-bromopropiophenone # N - (1 - methyl - 2 - oxo - 2 - phenylethyl) phthalimide # 2 - (1 - phthalimidoethyl) - 2- phenyl - 1,3 - dioxolane # 2 - (1 - aminoethyl) - 2- phenyl - 1,3 - dioxolane # 2 - phenyl - 2 - [1- (ethoxycarbonylamino)ethyl] - 1,3 - dioxolane # 2 - phenyl - 2 - (1 - diazoethyl) - 1,3 - dioxolane (Example 40). Antiinflammatory compositions for oral and topical administration comprise a compound of Formula I and a carrier.
Patent GB-139156-A (GB)
Title: Improvements in method of making decolorising carbon
IPC: C01B31/12
Filed: 1920-01-20
Abstract: Metaphosphoric acid is obtained in the preparation of decolorizing-carbon by heating together suitable organic material such as sawdust, corncobs or scrap leather, and phosphoric acid.
Patent GB-1158302-A (GB)
Title: Improvements in or relating to Aromatic Diglycidyl Ethers
IPC: H01B3/40
Filed: 1967-01-13
Abstract: 1,158,302. Aromatic diglycidyl ethers. REICHHOLD ALBERT CHEMIE A.G. 13 Jan., 1967 [2 April, 1966], No. 1872/67. Heading C2C. [Also in Division C3] Novel aromatic diglycidyl ethers of the formula in which n is 0 or an integer from 1 to 20, R 3  denotes the divalent radical or cyclohexylidene and R 1  and R 2  are the same or different and represent straight or branched chain aliphatic hydrocarbon residues are prepared by heating a bisphenol of the formula with epichlorhydrin and/or glycerine dichlorhydrin in an aqueous alkaline medium.
Patent GB-443987-A (GB)
Title: Improvements in or relating to a process for the production of goods of or containing rubber or similar material
IPC: C08K5/02
Filed: 1935-01-22
Abstract: Fire-resistant rubber goods are made by employing natural or artificial dispersions of rubber (or concentrated latices as obtained in Specifications 219,635 and 290,313, [both in Class 70]), containing highly chlorinated oils, fats, waxes, or hydrocarbons, in amounts of 30 to 100 per cent of the rubber content.  The compounded dispersion may be prepared by emulsifying the chlorinated compound in water with the aid of a soap, and adding to a latex mix; or by dissolving it in benzene, emulsifying in dilute casein solution, evaporating off the benzene by heat, allowing to settle, washing, and adding the paste to a latex mix; or by dissolving chlorinated rubber or polymerized chlorobutadiene in the chlorinated compound, forming an emulsion therefrom with the aid of casein, oleic acid and ammonia, and incorporating it in a latex mix; or by allowing rubber sheet to absorb the chlorinated organic compound and then emulsifying. Chlorinated naphthalene, chlorinated diphenyl, trichlorobene, &c. may be employed.  The dispersions may be employed to produce cellular rubber goods of the kind described in Specifications 332,525 and 332,526, [both in Class 70], and the fire-resistant properties of the goods may be enhanced by rubbing selenium powder into the surface or by incorporation of easily-decomposable carbonates.
Patent GB-443460-A (GB)
Title: Improvements in or relating to writing pads
IPC: B42D5/00
Filed: 1935-01-22
Abstract: 443,460. Writing - pads; electricbattery lamps. SOENNECKEN, F., 1, Kirschallee, Bonn, Germany. Jan. 22, 1935, Nos. 2131 and 2132. Convention dates, June 21, 1934 and Dec. 4, 1934. [Class 16] [See also Group XI] In a writing-pad for use in the dark a pencil or other writing implement inserted in a recess of the base of the pad is adapted to open and close an electrical circuit between a battery and a lamp arranged on a level above that of the writing surface. The note sheets 1, which may be loosely pil d, rest upon a baseplate 2, and are enclosed at the sides and at the end by flanges 3. The tops of the sheets abut a ledge 4, provided with a socket 5 for a bulb 6, and having a transverse bore 7 for the reception of a pencil or the like. Behind the ledge 4 a cylindrical battery 10 is arranged, one terminal 11 of the battery being connected with the bulb 6, and the other terminal being connected with a spring 12 which extends into the bore 7, the arrangement being such that when the pencil or the like is inserted in the bore 7, the terminals are closed and the lamp is lit. In a modification the bore of the ledge receives a sleeve having a limited sliding movement and into which a pencil or the like is inserted, the frictional resistance between the sleeve and the pencil being greater than the combined frictional resistance between the sleeve and the bore in the ledge, and the sleeve and the spring terminal. When the pencil is pulled out, the sleeve is first carried along so that the spring terminal is released to close the circuit ; the pencil is then pulled out of the sleeve for writing purposes. The circuit can be broken again either by directly pushing the sleeve inwardly, or by inserting the pencil into the bore of the sleeve. In both constructions the upper edge of the base 2 has a hinged cover 19 which encloses the battery and lamp, and the front wall of the cover is sloped and apertured to allow the light from the lamp to fall on the upper surface of the note sheets. A pair of spring members 22 arranged inside the cover 19 press against the pile of sheets 1 when the cover is in closed position. The cover is held in the closed position by the engagement of projections 24 on the cover with co-operating means 23 on the walls 3. One of the walls 3 is recessed to facilitate removal of the sheets 1.
Patent GB-626917-A (GB)
Title: Improvements in or relating to plaster shot blasting cartridges
IPC: F42B3/00
Filed: 1947-01-24
Abstract: 626,917. Extruding blasting cartridges. SILLITTO, G. P., DAVIDSON, S. H., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Jan. 24, 1947, Nos. 2262 and 26792. [Class 87 (ii)] [Also in Group XXI] Substantially semi-cylindrical blasting cartridges having a partly flat longitudinal surface are produced by extruding plastic explosive through a 2 in. diameter nozzle across the mouth of which is diametrically placed a knife-edge, which divides the extruded material into two cords each with a flat surface 2 ins. wide. In a preferred form of nozzle 1, Fig. 4, attached to the knife-edge 4 is a torpedo-like body 5, maximum diameter ¢ in. axially aligned with the nozzle, so that as the explosive material is extruded a medial recess 7, 71 is formed in the flat surface of each cord 6, 61.
Patent GB-1378421-A (GB)
Title: Forming articles from superplastic alloys
IPC: B21D26/055
Filed: 1972-01-18
Abstract: 1378421 Making heat-exchange pressure vessels; working at specified temperatures; fluid inflation; welding by fusion BRITISH AIRCRAFT CORP Ltd 16 Jan 1973 [18 Jan 1972] 2274/72 Headings B3A B3Q B3V and B3R A hollow article is formed by heating an envelope of a superplastic alloy to within the superplasticity range and inflating the envelope, the envelope being formed by metallurgically bonding together peripheral regions of two flat sheets. A spherical pressure vessel, which may have a heat exchange duct 8 on its outer surface, is formed from alloy sheet containing 90% Ti, 6% Al and 4% V. Superposed sheets are diffusion bonded or electron-beam welded at their periphery, Fig. 4 (not shown), and at the same time strips 8 of the alloy are attached to the envelope along their edges. The envelope is now heated in an oven to 930-950‹ C. and the envelope and ducts beneath the strips 8 are inflated with inert gas at 50 p.s.i., increasing to 150 or 200 p.s.i. The expanded seam, Fig. 5 (not shown), may be reinforced by further welding. Local restrictions on expansion may be applied by a mould, and the article produced need not be spherical.
Patent GB-711988-A (GB)
Title: Improvements in or relating to graphically recording meters
IPC: G01F15/07
Filed: 1952-01-28
Abstract: 711,988. Recording-apparatus. SOUTHERN GAS BOARD, and HOGG, J. C. Jan. 15, 1953 [Jan. 28, 1952], No. 2331/52. Class 106 (4) A graphically recording mechanism for a meter comprises a record chart in the form of a disc rotated by clock mechanism and a marking device in the form of a stylus operated by the meter each time a preselected consumption has taken place, so as to apply a distinctive mark to the disc. The invention is shown applied to a gas meter in a casing 10, Fig. 2, with inlet and outlet pipes 11, 12 and a meter driven recording spindle 14 projects through a recessed face 13 of an upstanding circular portion of the front wall of the casing. Fixed to the spindle 14 is a cam member 15 with a number of projections each with pair of faces 16, 17 inclined to a radial line at a small and substantial angle respectively. A bell crank lever 18 is pivoted at 19 to the face 13, one arm carrying a stylus 25 and the other a follower 21 spring urged toward the cam 15. Hinged to the casing beneath the recessed face 13 is a cover 26 in which is mounted clockwork mechanism 27 which may have a twenty-four hour clock face and hands viewable from the outside. The hour spindle or one moving at the same rate is provided with a carrier 31 for a recording disc 32 marked with a twenty-four hour scale 33. When the cover is swung into closed position, the chart comes into contact with the stylus 25 which traces thereon a saw-toothed track as the cam 15 is rotated anti-clockwise at a speed proportional to the rate of consumption. The number and spacing of the cam projections are chosen so that each " tooth " is traced during a predetermined consumption, say 2¢ cubic feet, and interchangeable cams may be provided designed for different rates of consumption. The clock may be mounted on the shaft of the cam member and the stylus may be made to record only at the times the predetermined consumptions are reached.
Patent GB-1413781-A (GB)
Title: Apparatus for handling freshly cast concrete slabs to facilitate  washing of one face of each of the slabs which face is formed  of exposed aggregate
IPC: B28B11/00
Filed: 1974-01-17
Abstract: 1413781 Reciprocating conveyers HENKE MASCHINENFABRIK KG 17 Jan 1974 [18 Jan 1973] 02361/74 Heading B8A Freshly cast concrete slabs a are individually transferred through a washing station by two gripping devices supported on reciprocable arms 10, 11. Each device consists of clamping members 14 horizontally movable by cylinders 16 and pivoted at 13 to a pair of the arms 10 or 11. Rods 18 connected to extensions 17 of the gripping devices maintain the latter in a constant vertical attitude. A motor-driven crank 21 reciprocates the arms 10, 11 and a stepwise driven roller conveyer for pallets 19 is actuated by a further motor 22. With the arms 10, 11 in the full-line positions the gripping devices are energized and the arms moved to the chain-dotted line positions. A slab is thus fed to the washing station where it is supported on a bottom bar 3 and is engaged by a bar 6 lowered by cylinders 5. A washed slab previously on the bar 3 is simultaneously transferred on to a pallet 19 and after both slabs have been disengaged by the clamping members 14, the arms 10, 11 are returned to their starting positions. Washing slurry is collected by a vessel 25. Electro-mechanical means may replace the cylinders 16.
Patent GB-364364-A (GB)
Title: Improvements relating to cotton opening and like machines
IPC: D01G9/00
Filed: 1931-01-26
Abstract: 364,364. Opening cotton &c. TAYLOR, LANG, & CO., Ltd., Castle Iron Works, and PASHLEY, J., 20, Warrington Street, both in Stalybridge, Cheshire. Jan. 26, 1931, No. 2486. [Class 120 (i).] In cotton or like opening machines the cotton is fed to the beater g over the full width of the beater by gravity assisted by an air flow admitted to the cotton and without the use of rollers or other feed devices which squeeze the cotton, so that it is presented to the beater in an open condition. The cotton entering the machine at a is collected on a suction cage b removed therefrom by a revolving stripper c and delivered into the downwardly-inclined passage d which is the full width of the beater cylinder e. An air current through the branch f assists the conveyance of the cotton.
Patent GB-536309-A (GB)
Title: Improvements in and relating to washing machines
IPC: D06F15/00
Filed: 1940-02-09
Abstract: 536,309. Washing - machines. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 9, 1940, No. 2491. Convention date, Feb. 11, 1939. [Class 138 (ii)] A washing machine is constructed with agitators arranged respectively in the lower and upper portions of the tub to rotate about a vertical axis, the agitators being rotated in opposite directions. The tub 1 rests on a rubber beading 3 secured on a skirt 4 supported on legs 5 and housing a gear casing 6 which supports a motor 7 driving through worm gear 18 a shaft 19 extending up through a pillar 21 supporting a wringer. A pinion 23 on the shaft 19 drives a shaft 25 with bevel gears 28 driving gears 29, 30. The gear 29 drives a hollow spindle 30a carrying the hub 36 of a lower conical agitator 39 having inclined ribs on its surface, and the gear 30 drives a spindle carrying an upper conical agitator 45 also having surface ribs. The agitators are thus driven in opposite directions and effect a circulation of the wash in the direction of the arrows 48, 50, 52 and 49, 51, 52.
Patent GB-251332-A (GB)
Title: Improvements in radio receiving sets
IPC: H01Q1/24
Filed: 1925-01-28
Abstract: 251,332. Blackmore, C. C. Jan. 29, 1925. Condenscrs.-A wireless receiving set is mounted on a circular base under a hemispherical cover and the tuning capacity is varied by turning the cover in relation to the base (or vice versa). Thus the aluminium base 2, Fig. 2, may have a standard 3 on which is pivoted a sleeve 12 carrying the cover 1 and geared down to two condensers 22, so that the condensers may be adjusted by turning the cover. Fine and subsidiary adjustments are made by means of controls projecting through slots in the wall 30 of the base, Fig. 9, including the control 32, of the vernier condenser.
Patent GB-850674-A (GB)
Title: A method for manufacturing cut pile fabric
IPC: D03D27/00
Filed: 1959-01-23
Abstract: 850,674. Pile fabrics. DE WIT'S TEXTIEL NIJVERHEID N. V. Jan. 23, 1959. [Jan 25, 1958], No. 2618/59. Class 142(4). In a fabric to simulate corduroy,. alternate groups of pile yarns have different light reflecting properties. Two or more worsted yarns may alternate with two or more of nylon or mohair. The fabric is piece-dyed.
Patent GB-979351-A (GB)
Title: Improvements in or relating to the manufacture of uranium dioxide
Inventor: BLUNDELL ANTHONY
IPC: C01G43/025
Filed: 1961-01-23
Abstract: Uranium dioxide is manufactured from uranium hexafluoride which is first converted to uranyl fluoride having a surface area of 3-12 metres2/gram, using steam at a temperature of at least 130 DEG  C. in a continuous flow of a gas inert to this reaction.  The powder obtained is treated at 550-600 DEG  C. with hydrogen and steam in a volume ratio at least 2 : 1. The processes may be effected in a fluidized bed reactor.
Patent GB-1028929-A (GB)
Title: Compositions for selectively combating weeds
IPC: C07D277/82
Filed: 1965-01-21
Abstract: 1,3 - Dimethyl - 3 - (2 - benzothiazolyl) thiourea is obtained by reacting 2-(methylamino)-benzothiazole in an inert solvent with methyl thiocyanate, whereby tertiary bases, e.g. pyridine, may be added as catalysts.  1,1 - Dimethyl - 3 - (2 - benzothiazolyl) thiourea is obtained by reacting N,N-dimethylthiocarbamic acid chloride with 2-aminobenzthiazole in the presence of a solvent, e.g. pyridine, at about - 10 DEG  to +20 DEG  C.ALSO:Herbicidal compositions comprise as active ingredient a substituted thiourea of formula:  <FORM:1028929/A5-A6/1> wherein R1 and R2, which may be the same or different, are each a hydrogen atom or a methyl or ethyl radical, in admixture with a solid diluent or carrier, or in admixture with an organic solvent and an emulsifying agent capable of producing a stable emulsion when diluted with water, or in admixture with water containing an auxiliary solvent and/or an emulsifying agent.  The compositions may be applied in the form of emulsifiable concentrates, spray powders, pastes, soluble powders, dusts and granulates.  Non-ionic and anionic emulsifiers are specified.
Patent GB-739360-A (GB)
Title: Grid bias arrangement for television receivers
IPC: H04N5/44
Filed: 1954-01-29
Abstract: 739,360. Valve circuits for radio reception. STANDARD TELEPHONES & CABLES, Ltd. Jan. 29, 1954 [March 6, 1953], No. 2747/54. Class 40 (6). In a television receiver a negative grid bias voltage is derived from the line timebase. The timebase comprises a sawtooth generator VA1, VA1<SP>1</SP> of the cathode-coupled type driving a line output valve VA2. Grid current in the valve VA2 produces a negative potential across the grid leak R8 which is smoothed by means of resistor R10 and condenser C7 and which is either used directly as a fixed bias for one or more other stages of the receiver or alternatively is applied thereto via an adjustable potentiometer P.
Patent GB-813768-A (GB)
Title: Electrical circuit for comparing two numbers
IPC: G06F7/02
Filed: 1957-01-25
Abstract: 813,768. Comparing digital data. STANDARD TELEPHONES & CABLES Ltd. Jan. 25, 1957 [Jan. 31, 1956], No. 2780/57. Class 106 (1). In an electrical circuit for comparing sequentially pairs of corresponding digits of two ndigit binary numbers, a shift register having at least n +1 stages stores one number and receives the digits of the other number, the contents of the register being shifted one stage for each digit received, and comparison means is controlled by a predetermined pair of register stages, the result of the comparison indicating whether the two numbers are equal or which is the greater. The shift register SR shown may be as described in Specifications 663,574, 726,526 and 783,000, [all in Group XL (b)], the outputs of the first and last stages 1 and n+ 1 being applied to gates G3, G4 and, through inverters, to gates G6, G5 in comparator CMP. The numbers are represented by serial pulse trains (pulse for "0," no pulse for " 1," and most significant digit first) applied to P2 in synchronism but out of phase with clock pulses applied to P1 as shown, the pulses being obtained, e.g. from a magnetic tape reading circuit as described in Specification 766,317, [Group XL (b)]. In response to each pulse P1, monostable device produces a shift-registeradvancing pulse at P11 of duration K1T (T being the inter-pulse period). After the 1st number has been registered in stages 1 to n, a potential applied to PA sets bi-stable device BS1 to condition " 1 " thus opening gate G2. As the 2nd number is applied to P2, each clock pulse at P1 is therefore applied to MS2, as well as MS1, to produce at P12 a comparisoneffecting pulse delayed by K2T (lying between (T/2  and T). Since the shift register stages provide an effective output for " 0," if an " 0 " in the 2nd number (from stage 1) corresponds to a " 1 " in the 1st number (from state n+1), the delayed pulse passes through gates G3, G5 and sets bi-stable device BS2 to " 0." Similarly, if a " 1 " in the 2nd number corresponds to an " 0 " in the 1st number, BS2 is set to " 1." Any pulse which sets BS2 will also pass through buffer G1 to reset BS1 and prevent any further delayed pulses being obtained. Thus the condition of BS2 indicates which number is greater, equality being indicated by BS1 finally remaining in the " 1 " condition. Reference is made to reading and comparing information recorded magnetically on a tape or drum, or on a cheque or on a piece of tape associated with a chequeholding jacket. To permit wider tolerances in the relative phase of clock and information pulses, the shift register may have an additional stage " 0 " (Fig. 2, not shown), and the pulses at P1 lag behind the pulses at P2. The period K2T can then lie between K1T and T. Specifications 730,854 and 766,318 also are referred to.
Patent GB-843714-A (GB)
Title: Method of protecting the lining of rotary furnaces for treating molten metal
IPC: C21C5/44
Filed: 1958-01-28
Abstract: 843,714. Refining steel. STORA KOPPARBERGS BERGSLAGS A.B. Jan. 28, 1958 [Feb. 1, 1957], No. 2827/58. Class 72 [Also in Group XII] During the refining of molten iron in a tilting rotary furnace 1 by an oxygenrich gas supplied through a water-cooled tuyere 32, the furnace lining 3, above the bath area where the oxygen-rich gas strikes the melt, is protected by blowing thereon through another water-cooled tuyere 40 a granular solid suspended in and carried by a gas. The gas may be carbon dioxide or steam, and the granular material quicklime, limestone or iron ore. The solid material may be fed through a valve 46 info a chamber 45 having a lower grid 47 through which fluidizing gas is supplied by a pipe 49, additional gas being supplied if necessary through a pipe 51. The chamber 45 is connected to the tuyere 40 by a flexible tube 41. Solid material may also be introduced through the tuyere 32. The furnace has a cradle 13 pivotally mounted in bearings 15 so that it may be tilted away from the water-cooled exhaust hood 27 for charging or discharging operations. One of the supporting rollers 9 is driven by a motor 19 through gearing 20, 21, and retaining rollers 23 engage the rings 7. The lining 3 may be magnesite or dolomite.