baber/WOPTO huggingface dataset:
Patent GB-966102-A (GB)
Title: Novel cyclopentanophenanthrene compounds and a process for the production thereof
IPC: C07J71/00
Filed: 1960-09-30
Abstract: The invention comprises 6b , 19-oxido pregnanes and 6b , 19-lactones of the general formulae: <FORM:0966102/C1/1> in which Y represents keto, b -hydroxy or b -acyloxy; X represents b -hydroxy or b -acyloxy; R represents hydrogen or a hydrocarbon carboxylic acyl group containing less than 12 carbon atoms; R1 represents hydrogen, hydroxy or acyloxy; Z represents a double bond between C-1,2 and C-4,5 or a saturated linkage between C-1,2 and C-4,5. The compounds are prepared from 6b -hydroxy-tigogenin acetate by reaction with lead tetra-acetate, and degradation of the side chain of the resulting 6b , 19-oxido tigogenin acetate by conventional methods to give a 3b -acyloxy-6b , 19-oxido-D 16-5a -pregnen-20-one, which may then be converted to the 16a , 17a -epoxide with H2O2, the epoxide ring cleaved with HBr to give 6b , 19-oxido-16b -bromo-5a -pregnane-3b 17a -diol-20-one, and the latter subjected to reductive debromination to give 6b , 19-oxido-5a -pregnane-3b , 17a -diol-20-one. Subsequent transformations by standard procedures furnish the 6b , 19-oxido compounds of the invention.  Oxidation of 6b , 19-oxido-pregnane-3b , 17a -diol-20-dione diacylate and 6b , 19-oxido-5a -pregnan-3b -ol-20-one acylate with chromic acid yield the corresponding 6, 19-lactones which are then saponified and converted into the corresponding 3-keto compounds with chromic acid.  The invention is illustrated by fifteen detailed examples.  6b -Hydroxy-tigogenin acetate is prepared from diosgenin acetate by treatment with hypobromous acid, oxidation of the resulting 5a -bromo-6b -hydroxy derivative, elimination of the bromine atom from the 5a -bromo-6-keto compound, and then hydrogenation of the keto group to give the corresponding 6b -ol derivative.  Specification 966,101 is referred to.
Patent GB-1500688-A (GB)
Title: Detonators
IPC: C06C7/00
Filed: 1972-07-19
Abstract: 1500688 Delayed action detonator for an impact fuse DYNAMIT NOBEL AG 19 July 1972 [31 July 1971] 33798/72 Heading F3A A delayed action detonator for an impact fuse, especially of an anti-aircraft projectile, comprises separate spaced casings each containing parts of the ignition charge-primary explosivesecondary explosive chain, the casings being so spaced as to provide a delay time of 80-400 microseconds. In examples a first casing contains all or part of the ignition charge which may be followed by part of the primary explosive (lead azide), and a second casing separated by 5 mm. contains the secondary explosive (tetryl) together with all or part of the primary explosive and with or without part of the ignition charge. Lead styphnate may also be used as the primary explosive and PETN or hexogen as the secondary explosive. The ignition charge may be a mixture of antimony sulphide, lead styphnate, Pb 3 O 4 , and tetrazene or a mixture of lead azide, antimony sulphide, silicon carbide, and potassium chlorate.
Patent GB-1321436-A (GB)
Title: Juvenimicin and production thereof
IPC: C12P19/62
Filed: 1970-07-13
Abstract: 1321436 The antibiotic juvenimicin TAKEDA YAKUHIN KOGYO KK 13 July 1970 [11 July 1969] 33806/70 Heading C2A The antibiotic juvenimicin A is a white powder insoluble in petroleum ether, n-hexane and neutral aqueous solutions, soluble in benzene, chloroform, ethyl acetate, dimethylformamide, ethanol or aqueous acid solutions, has the elementary composition C : 63À39  1À0%; H : 8À83  0À5%; N : 2À80  0À5%; specific rotation [α]<SP>24</SP> D  = -13À4 - 10 (C = 0À5% in chloroform), molecular weight (vapour pressure osmosis method) 655  70 and ultraviolet absorption #<SP>EtOH</SP> max  = 240  2mÁ (E<SP>1%</SP> 1cm . = 230  30) and an IR spectrum (KBr disc) as shown in Figure 1 above. The antibiotic Juvenimicin is prepared by aerobic culture of the micro-organism Micromonospora chalcea var. izumensis or Micromonospora chalcea var. izumensis IFO-12988 or mutants or variants thereof at pH 5-8 at 20-45 C., preferably 27 C. to 34C., filtering the fermentation broth with a filter aid in the form of a diatomaceous earth and extracting the filtrate with a waterimmiscible or partially immiscible organic solvent, e.g. ethyl acetate and evaporating to dryness in vacuo. The resultant antibiotics may be separated into various components designated Juvenimicins A 1 , A 2 , A 3 , A 4 , B 1 , B 2 , B 3 , B 4  by thin layer chromatography or gel filtration. The Juvenimicins A 1 , A 2 , A 3 , A 4  have their ultraviolet absorption maxima in the region of 240 mÁ while the Juvenimicins B 1 , B 2 , B 3  and B 4  have their ultraviolet absorption maxima near 280 mÁ. Pharmaceutical preparations having antibiotic properties may be produced by using Juvenimicin with pharmaceutically acceptable carriers e.g. white petroleum jelly. It is stated that Juvenimicin A 1  is synonymous with antibiotic T-1124-A, A 2  with T-1124- B, A 3  with T-1124-C, A 4  with T-1124-D.
Patent GB-1010640-A (GB)
Title: Improvements in or relating to an electrode for electrolytic cavity sinking
IPC: B23H9/14
Filed: 1963-08-27
Abstract: An electrolytic machining tool for forming a hole in an electrically conductive workpiece comprises an electrically conductive tube through which electrolyte is supplied to the work area and an electrical conductor disposed within and electrically connected to the tube and extending up to the working end of the tube.  The electrical conductor may be one or more rods or wires and the inner ends may either be bent over at the inner end to prevent longitudinal displacement or they may be secured to a plate located in a recess behind the electrolyte supply manifold cavity.  Relative movement between the tool and the work may be effected by advancing with or without rotating one or the other.
Patent GB-1096889-A (GB)
Title: Vinyl chloride-propylene copolymers
IPC: C08F214/06
Filed: 1965-08-06
Abstract: A rigid vinyl chloride-propylene copolymer has a propylene content of 1 to 10% by weight and a dynamic processability index (defined) of at least 300.  The copolymers are formed by polymerization in aqueous suspension having a pH of 5 to 8.5, a temperature of 30-75 DEG  C and a pressure up to 250 psig.  The copolymer. may contain conventional stabilizers and lubricants as well as resins such as acrylate/methacrylate copolymer and ABS resin.
Patent GB-638237-A (GB)
Title: Conche for treatment of sweetmeats with air
IPC: A23G1/12
Filed: 1947-12-23
Abstract: 638,237. Confectionery. SKANES, H. Dec. 23, 1947, No. 33958. Convention date, May 11, 1944. [Class 28(i)] In a conche for treating sweetmeats, e.g., caramel or chocolate in liquid or semi-liquid state with air, the sweetmeat is delivered, e.g., by a pump 16 from a container 1 on an endless metal or metalcovered belt 7 moving on a pair of rollers 6 and located out of direct contact with the sweetmeat in the container and in an air-circulating enclosure 12. The paste is spread evenly over the belt by inclined plates 10, and further scrapers move paste at the edges off the belt or to its centre. Rakes 19 expose to the air fresh surfaces of the paste, which is finally removed by scrapers 11. Panels 8, 9 heated by fluid or electricity or cooled by fluid are placed near the inner surfaces of the belt. A fan 3 draws hot or cold air over the belt through a valve 14 in a casing 12 arranged over the belt and container 1, which has a steam jacket 2 and stirrer 3.
Patent GB-782149-A (GB)
Title: Improvements in the continuous drawing of glass into sheets
Inventor: LONG BERNARD
IPC: C03B15/04
Filed: 1955-11-28
Abstract: 782,149. Glass drawing. COMPAGNIES REUNIES DES GLACES ET VERRES SPECIAUX DU NORD DE LA FRANCE. Nov. 28, 1955 [Dec. 4, 1954], No. 34004/55. Class 56. In the drawing of sheet glass the bottom of the bath 2 of molten metal slopes, or is curved, upwardly from the front to the rear and the drawing takes place from the rear (shallower) end of the bath. The system is applicable particularly to vertical drawing followed by horizontal bending and annealing in the horizontal position or, as shown, to the drawing in an oblique direction. Water coolers 22, 29, 34 and air-blowing or suction coolers 24, 26, 27, 33, 35 are provided.
Patent GB-1009679-A (GB)
Title: Length measuring apparatus
Inventor: GEE-WAH FREDERICK
IPC: G01B5/04
Filed: 1963-08-28
Abstract: 1,009,679. Measuring lengths of continuous material. STANDARD TELEPHONES & CABLES Ltd. Aug. 21,1964 [Aug. 28,19631, No. 34058/63. Heading G1M. Apparatus for measuring the length of moving material, e.g. a cable 1, comprises a wheel 2 mounted on a pivoted arm 7 and geared to a revolution counter 3. The rim 5 of the wheel 2 is formed with holes 6, so that as the cable 1 is moved along through rotation of wheel 2, suction is applied at 4 to retain the cable in contact with the rim 5. Variations in thickness of the cable are accounted for by movement of the arm 7. The wheel 2 may be replaced by a belt formed with suction holes passing over two pulleys, one of which is geared to a revolution counting device.
Patent GB-493407-A (GB)
Title: Method and press for the shaping of flat work-pieces, particularly for drawing deep hollow bodies from metal sheets
IPC: B21D24/00
Filed: 1937-12-09
Abstract: 493,407. Hydraulic presses. WARREN, S. F. (Henschel Flugzeug-Werke Akt.- Ges.) Dec. 9, 1937, No. 34139. [Class 69 (ii)] [Also in Group XXII] Sheet metal is shaped or cupped without wrinkles between dies 7, 8, by a preliminary slow pressing and then finishing to final form by a percussion action between the dies. Hand smoothing of wrinkles may precede the percussion. The percussion action may be obtained by uncoupling the top die holder 6a from its drive and allowing it to fall on the shape resting in the bottom die. Numerous forms of releasable couplings are shown, e.g. in Figs. 2 and 3, where angular rotation of the drive shaft 4 by hand lever 13 or motor 16 causes the projections 12 to register with slots in the die holder 6a which thereby becomes free to drop on the work. This release may be automatic by switch 9 starting the motor when the die has been raised by the fluid pressure piston 5 after the first draw. Another form of release coupling comprises locking pins operated by fluid pressure, Fig. 4 (not shown), or levers 30, Fig. 7, engaging a neck on the die holder and released by solenoid 36 or by auxiliary fluid pressure piston, Fig. 6 (not shown). An almost free drop of the die may also be obtained by allowing the fluid at the underside of the drawing piston 5 to exhaust through a suddenly opened large orifice 11, Fig. 1 (not shown). A fluid pressure work holder, Fig. 8 (not shown), may press the rim of the sheet against the lower die 2, the top die being released to drop through this work holder after the first draw. A fluid pressure draw-ring may also be provided, Fig. 9 (not shown). The lower die holder itself may rest on fluid pressure plungers by which its level can be adjusted.
Patent GB-1284604-A (GB)
Title: A heating process using paper or cardboard that is resistant to high temperatures
IPC: D21H17/53
Filed: 1969-07-07
Abstract: 1284604 Packaged foodstuff FELDMUHLE ANLAGEN UND PRODUKTIONS GmbH 7 July 1969 [5 July 1968] 34208/69 Heading A2D [Also in Divisions AS B8 and D2] Paper or cardboard impregnated with one or more polyalkylene glycols is used to wrap articles which are then heated to a temperature greater than 250F. Foodstuffs, e.g. unbaked bread and cakes may be so wrapped and then cooked in the wrapper.
Patent GB-407786-A (GB)
Title: Improvements relating to balls or cops of twine and the like
IPC: B65H49/08
Filed: 1932-12-03
Abstract: 407,786. Balls of twine. WRIGHTS ROPES, Ltd., Garrison Street, Birmingham, and WRIGHT, F. S., Small Lane, Earlswood Lakes, both in Warwickshire. Dec. 3, 1932, No. 34257. [Class 120 (iii).] In a ball or cop of twine, enclosed in a paper wrapper, and adapted to be unwound from the centre, the outer end of the twine is taken out through an opening in the side, top or bottom of the wrapper at a point away from the hollow centre of the ball. The ball 1 adapted to be unwound from the centre, and consisting e.g. of a universal wind and an outer cover winding, is enclosed in a close fitting wrapper 2 of stout paper, cardboard, or fabric, of the kind described in Specification 373,706, except that the bottom is entirely closed. Tongues 3, or pins, may engage the layers, or the envelope may be stuck to, shrunk upon, or pressed on to the ball. The outer end 5 is brought through an opening 4 in the side, or through an opening in the top or bottom away from the centre. When used in harvesting machines, the free end 5 is tied to the inner end of a second package, the knot thus being outside both packages and clear of the windings.
Patent GB-1445968-A (GB)
Title: Free radiacals
IPC: C07D487/08
Filed: 1972-07-21
Abstract: 1445968 Free radicals L H SUTCLIFFE and M R BRINKMAN 19 July 1973 [21 July 1972] 34320/72 Heading C2C The invention comprises free radicals containing the moity which may form part of a fused ring structure, and also secondary free radicals when formed from said free radicals on heating or prolonged storage. The radicals of the above formula are prepared by reacting an olefinic compound with tetrasulphur tetranitide to form an adduct and breaking this down, e.g. by U, V or gamma irradiation or heat, a typical reaction scheme being Other adducts prepared similarly and then decomposed to free radicals have the formulµ (or possibly isomeric forms) The free radicals are used for spin labelling.
Patent GB-793726-A (GB)
Title: Improvements in or relating to dispenser cathodes
IPC: H01J1/28
Filed: 1955-12-02
Abstract: 793,726. Cathode materials. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Dec. 2, 1955 [Dec. 6, 1954], No. 34563/55. Class 39(1) The impregnated dispenser cathode of Fig. 3 consists of three layers of material: (a) a porous body 3 of refractory metal impregnated with emissive alkaline earth compound, (b) a layer 5 of sintered refractory metal less porous than body 3, (c) a sintered mixture 6 of refractory metal and refractory metal oxide. A molybdenum disc 4 may be inserted below the body 3, and a further disc 7 under the final layer. (a) may be a mixture of 90 per cent. tungstenmolybdenum powder (in a 3: 1 ratio) and 10 per cent basic barium aluminate, (b) may be molybdenum powder of particle size 2Á, (c) may be 90 per cent molybdenum powder of particle size 10Á, and 10 per cent aluminium oxide. The various layers are assembled in a sleeve 1, pressed into a coherent unit in a suitable die, and heated to 1700‹-1900‹C in vacuo or an inert atmosphere for 20 secs. to sinter the layers. The construction is designed to prevent leakage of emissive material backwards into the heater zone. In Fig. 4 the layers 5 and 6 are provided only adjacent the annular aperture between disc 4 and tube 1.
Patent GB-1481975-A (GB)
Title: Basic azo dyestuffs process for their preparation and their use
IPC: C09B44/02
Filed: 1974-08-06
Abstract: 1481975 Basic monoazo dyestuffs HOECHST AG 6 Aug 1974 [6 Aug 1973] 34592/74 Heading C4P Novel dyestuffs, free from SO 3 H groups, have the formula (wherein Ar is phenylene or naphthylene optionally substituted by halogen, C 1-4  alkyl, alkoxy or alkylsulphonyl, C 2-4  alkanoylamino, C 2-5  aliphatic carboxylic acyl, optionally substituted benzoyl, nitro, trifluoromethyl, carbamoyl, sulphamoyl or C 2-6  alkoxycarbonyl; X is O or S; Alk is C 2-8  linear or branched alkylene; Z is a tertiary amino group or a quaternary ammonium group; and K is a coupling component radical) are prepared (1) by diazotizing an appropriately substituted aniline or naphthylamine and coupling with a coupling component KH; or (2) by reacting an azo dyestuff of the formula CH 2  = CH-SO 2 -Ar-N = N-K with HX-Alk-Z. Products containing a tertiary amino group may subsequently be quaternized. The novel dyestuffs may be used for dyeing, printing or mass dyeing natural or synthetic textile materials, e.g. tannined cellulose, silk, hair, leather, coco, jute, sisal, acetate silk, or polyamides, or acid-modified polyamides, polyolefins, polyesters, polyacrylonitrile or polyvinylidene cyanide, and in the preparation of inks.
Patent GB-643389-A (GB)
Title: Tubular gas heater, particularly for the heating of compressed propulsive gases for turbines
IPC: F23R3/00
Filed: 1947-12-30
Abstract: 643,389. Gas-heating furnaces. AKT.-GES. FUR TECHNISCHE STUDIEN. Dec. 30, 1947, No. 34716. Convention date, Jan. 28. [Class 64(i)] In a gas heater in which the gas flows through tubes over which hot gases from a combustion chamber 2 flow by convection, the tubes are grouped in nests of parallel tubes, each nest being surrounded by a jacket 6'. 6<SP>2</SP> through which the heating gases must flow in the direction of the length of the tubes, and the tubes in each nest being prevented, e.g. by a latticework 5<SP>1</SP>, from moving laterally relatively to their jacket without being rigidly connected to it. In the form shown, the limbs of nests of inverted U-shaped tubes are each surrounded by a jacket. The heating gases flow from the central combustion chamber 2, first upwardly through the jackets 6<SP>2</SP> to an annular chamber 4<SP>1</SP> formed by partitions 4, and then downwardly through the jackets 6<SP>1</SP> into an annular chamber formed by a partition 4<SP>2</SP>, to an outlet. Headers 9, 10 to which the ends of the tube nests are connected are joined to the inlet and outlet pipes 14, 16 by flexible pipes 11, 12 having arcuate parts to allow for relative expansion. The jackets 6<SP>1</SP>, 6<SP>2</SP> are supported from the partitions 4 by rings 5<SP>2</SP>, and may be telescopic. In a modification, the gas tube.s are straight, and each nest is surrounded by a single jacket, through which the hot gases flow upwardly to an annular chamber surrounding the upper parts of the tubes.
Patent GB-779281-A (GB)
Title: Preparation of cellulose esters
IPC: C08B3/28
Filed: 1954-11-30
Abstract: A cellulose ester of an aliphatic monocarboxylic acid or acids is recovered in particulate form from its reaction solution, the solution including a lower aliphatic monocarboxylic acid which is miscible with water, and the ester having at least two aliphatic monocarboxylic acid substituent groups, at least 10 per cent of which is acetyl, per anhydroglucose unit, by precipitating the ester by the slow introduction of water or a dilute aqueous solution of a lower aliphatic monocarboxylic acid to the solution with agitation in the presence of a solvent for the ester which solvent is substantially immiscible with the dilute aqueous organic acid present in the precipitation bath thus formed, thereafter removing the solvent from the precipitation bath, either by distillation, when the solvent is volatile, or, when the solvent is not volatile, by extraction with a liquid which dissolves the solvent but not the cellulose ester and which is also substantially immiscible with the precipitation bath, and recovering the precipitated ester from the bath as a product substantially free from fines and having a bulk density between 0.4 and 0.6 gram per c.c.  The cellulose ester may be a cellulose acetate, acetate propionate, acetate butyrate, acetate caproate, acetate stearate or acetate sorbate.  When the ester is cellulose acetate it may be prepared in a reaction mixture in which methylene chloride is the ester solvent.  After acetylation followed by hydrolysis to the desired extent is accomplished, the catalyst is neutralized and part of the methylene chloride distilled off, leaving a proportion of methylene chloride amounting to 5 to 50 per cent of the total weight of the reaction mixture.  When the combined acetic acid content of the cellulose acetate is 52-56 per cent, the percentage of methylene chloride retained is preferably about 10 per cent.  When the combined acetic acid content is 60 to 62.5 per cent, the percentage of methylene chloride retained is preferably 25-30 per cent.  The precipitant, either water or aqueous acetic acid up to 10 per cent concentration is then added and the cellulose acetate thereby precipitated as plastic spheroids containing methylene chloride which is then distilled off.  The cellulose ester solvent present in the reaction mixture may be ethyl, methyl, propyl or butyl acetate, chloroform, dimethyl or diethyl phthalate, triphenyl or tricresyl phosphate.  In an example, to 265 grams of a cellulose acetate reaction mixture consisting of 25 per cent of cellulose acetate (55 per cent combined acetic acid), 40 of acetic acid, 26 of water and 9 of methylene chloride are slowly added with stirring 260 ml. of water, the thus diluted mixture heated to 40 DEG  C. and the methylene chloride evaporated therefrom by passing air over its surface.  After 2 hours, the temperature is raised to 60 DEG  C., held for 1/2 hour, gently agitating all the while.  The precipitated cellulose acetate is removed from the liquid, washed and dried.
Patent GB-1512010-A (GB)
Title: Implements for delivering particulate material to the ground
IPC: A01C17/00
Filed: 1974-08-07
Abstract: 1512010 Variable outlet for particulate distributors MASSEY - FERGUSON - PERKINS Ltd 7 July 1975 [7 Aug 1974] 34756/74 Heading AID The supply of particulate material from a hopper 18 to a rotating spreading plate 22 is controlled by a metering mechanism 24 comprising two members, such as nesting bowls 82, 84 having alignable apertures in their side walls, such that movement of one member relative to the other by a hydraulic ram 96 varies the size of an opening defined by the members, an adjustable stop within the ram permitting only a selected amount of said relative movement. The double-acting ram 96 is pivotally connected to an arm 98 fixed to a bell crank lever 100 to which rods 32, 30 are pivotally connected such that with ram 96 fully extended (Fig. 4 position) the apertures in bowls 82, 84 do not overlap but retraction of ram 96 causes rods 32, 30 to rotate relatively to the bowls to expose the opening. Ram 96 has a multipiece piston rod 114 including a screw threaded rod 164 integral with a central portion 154 and having screwed thereon sleeve 166, which is held against rotation in a collar 144 so that hand wheel 122 rotates rod 164 relative to sleeve 166 and hence changes the length of piston rod 114. Thus rod 164 and sleeve 166 provide the adjustable stop since the stroke of ram 96 is thereby variable, and a pointer and scale 136, 138 indicate the amount of relative movement of the bowls when the ram is fully retracted. The direction of scatter produced by plate 22 is varied by moving a member 102 of the ram assembly support rearwardly on member 78 so that rods 30, 32 and bowls 82, 84 are moved equallv in the same direction. The metering members may alternatively be apertured flat plates or several overlapping plates defining an opening.