baber/WOPTO huggingface dataset:
Patent GB-796768-A (GB)
Title: Manufacture of derivatives of 5-pregnene-3,17ª‡-diol-20-ones
IPC: C07J5/00
Filed: 1955-11-10
Abstract: The invention comprises 21-iodo-5-pregnene-3b , 17a -diol-20-ones of the general formula: <FORM:0796768/IV (b)/1> wherein R and R1 represent hydrogen or aliphatic acyl groups having less than 6 carbon atoms, Y represents O or H2, and Z represents O, H(OH), or H2, and the preparation thereof by reacting a 5,6,21-trichloro- or tribromo-pregnan-20-one of the general formula: <FORM:0796768/IV (b)/2> where X is chlorine or bromine and R, R1, Y and Z have the above significance, with an alkali or alkaline earth metal iodide, preferably in an inert solvent, e.g. acetone, alcohol or benzene. The above process may be modified in that the 5,6,21-trichloro- or tribromo-pregnan-20-one used is the crude reaction product resulting from the trichlorination or tribromination of a compound of the general formula: <FORM:0796768/IV (b)/3> wherein R, R1, Y and Z have the above significance.  The above process may be extended in that the 21-iodo compound of the above general formula is reacted with an alkali or alkaline earth metal salt of a lower aliphatic carboxylic acid containing less than 6 carbon atoms to form the corresponding 21-acyloxy compounds which may then be hydrolysed to the corresponding free hydroxy compounds, e.g. with an alkali metal carbonate, bicarbonate or hydroxide, and these compounds may be oxidized, e.g. with chromic acid or N-bromo succinimide to form 4-pregnene-17a ,21-diol-3,20 diones.  Thus from 5,6,21-tribromopregnane - 3b ,17a  - diol - 20 - one and its 3- and/or 17-esters with the lower aliphatic carboxylic acids there is obtained 21-iodo-5-pregnene-3b ,17-diol-20-one and its corresponding esters.  D 5 - Pregnene - 3b ,11b ,17a ,21 - tetrol - 20 - one and its 3- and/or 17-esters with the lower aliphatic carboxylic acids are then obtained from 21 - iodo - 5 - pregnene - 3b ,11b ,17a -triol and its corresponding lower aliphatic carboxylic esters.  In the examples the following compounds are prepared: 21-iodo-D 5-pregnene - 3b ,17a - diol - 20 - one and the 3-acetate thereof, D 5 - pregnene - 3b ,17a ,21 - triol - 20 - one, 3,21 - diacetate and 21 - acetate thereof.
Patent GB-1496460-A (GB)
Title: Resettable odometer mechanisms
IPC: G01C22/00
Filed: 1976-09-08
Abstract: 1496460 Odometers GENERAL MOTORS CORP 8 Sept 1976 [19 Sept 1975] 37175/76 Heading G I K [Also in Divisions F2 and G4 In a resettable odometer having counting wheels 14, 16, 18, 20 rotatably supported on a shaft 12, with transfer pinions (80), Fig. 2 (not shown), between each pair of adjacent counting wheels, a gear wheel 38 is rotatably supported on the shaft 12 to the right (lower order) side of each counting wheel, the gear-wheel 38 having circumferentially continuous gear teeth 42 on its right hand side to receive a rotary input from the associated transfer pinion (80) or, for the lowest order wheel 14, from an input member 32, and a ratchet clutch enables the counting wheel to be rotated in a direction 100 either by the gear-wheel 38 while the shaft 12 remains stationary (the counting mode), or by the shaft 12 while the gear-wheel 38 remains stationary (the reset operation). Each counting wheel has two gear teeth 82, 84 on its left hand side to drive the adjacent transfer pinion a predetermined amount once per revolution of the counting wheel to advance the next higher order counting wheel one step. The ratchet clutch comprises a ratchet spring 46 of resilient plastics, loosely supported on the shaft 12 between the counting wheel 14 and the gearwheel 38, Fig. 4, and consists of outer and inner hoops 52, 54 connected together by a bridge 56. Pegs 62 on one side of the spring 46 slidably engage in radial slots 64 of the counting wheel 14 to connect the spring and counting wheel for rotation together. A detent 50 on the outer hoop 52 is engageable with recesses 48 in the gear-wheel 38, while a detent 70 within the inner hoop 54 is engageable with a V-groove 66 in the shaft 12. For resetting, the shaft 12 is turned manually in the direction 83, Fig. 4, the shaft otherwise being held stationary in a datum position by a spring detent (90), (Fig. 2) engaging a recess (92) in the rim of a wheel 94 splined to the shaft 12.
Patent GB-1009625-A (GB)
Title: Improvements in and relating to the production of synthetic threads, ribbons or the like having a lobed cross-section
Inventor: LUDEWIG HERMANN
IPC: D01D5/24
Filed: 1962-10-02
Abstract: 1,009,625. Melt-spinning. CHEMIEFASERWERK SCHWARZA " WILHELM PIECK ". Oct. 2, 1962, No. 37328/62. Addition to 816,877. Heading B5B. A spinneret plate according to Claims 4 and 5 of the parent Specification (wherein there is provided a spinneret plate having two or more orifices for the extrusion of individual filaments, the axes of which orifices may converge in the spinning direction, and means for bringing the filaments into contact with one another while they are still in a liquid or semi-liquid state and shortly after leaving the spinneret plate so that they adhere to one another to form composite filaments) is characterized in that the orifices in the spinneret plate are constituted by rectilinear or curved slots in closely adjacent relationship, at least one of said slots being provided with an enlarged portion or portions of circular cross-section. The slot or slots may be enlarged at the point thereof immediately adjacent another slot or slots (Figs. 1 to 12). The slots may be so disposed with relation to each other that hollow threads are produced, as shown, for example, in Figs. 7 to 10 in which two or more slots almost enclose an area of the spinneret plate which is free from orifices.
Patent GB-789321-A (GB)
Title: A heel seat for correcting flat-footedness and other deformities of the feet
Inventor: HELFET ARTHUR JACOB
IPC: A43B21/32
Filed: 1954-12-24
Abstract: 789,321. Boots &c. WALK-RITE APPLIANCES (PROPRIETARY), Ltd. Dec. 24, 1954, No. 37370/54. Class 17(2) A heel seat for correcting flatfootedness or other foot deformities (the left heel seat as shown), has a flat base 1 and outer and inner side walls 2, 3 and a rear wall 4 shaped to the form of the heel and preferably moulded in one rigid piece from plastic material or metal. The inner side wall 3 is formed with a bulbous portion forward of the area 3b which tilts the heel and forces the instep into an arched position. The bulbous portion is formed by an S-shaped curve both in a horizontal and a vertical plane. The heel seat may be built into the shoe..
Patent GB-894609-A (GB)
Title: Tannates of morphine alkaloids
IPC: C07D489/04
Filed: 1959-11-04
Abstract: The invention comprises the tannates of morphine, codeine, dihydrocodeine, dihydrocodeinone, 6-methyldihydromorphine and ethylmorphine, wherein the ratio of alkaloid to tannic acid is 5\sB 1/2 : 1, and the preparation thereof by dissolving the alkaloid in an alcohol, adding for each mol of alkaloid 374 grams of tannic acid dissolved in the same alcohol, diluting the mixture with an excess of ice water to complete precipitation of the tannate, filtering off the precipitate, washing thoroughly with ice water and drying in a vacuum oven.  The invention also comprises oral sustained-release analgesic and antitussive compositions in unit dosage form (e.g. tablets or capsules) comprising penta-morphine-, penta-codeine- or penta - dihydro - codeine-penta-(digallyl)-glucose (in each case substantially free of other tannin complexes of the same alkaloid), together with an excipient.
Patent GB-1303910-A (GB)
IPC: C23C16/30
Filed: 1971-08-10
Abstract: 1303910 Sintered cutting tool METALLWERK PLANSEE AG & CO 10 Aug 1971 [9 Sept 1970] 37432/71 Addition to 1217386 Heading C7F  A cutting tool for machining specific steels has a machining surface formed of a layer 0À001-<0À01 mm. thick containing at least 75% of carbides, nitrides, carbo-nitrides and/or borides of Ti, Zr, Hf, V, Nb and/or Ta with the balance Fe, Co, Ni, Cr, Mo, W and/or WC. A 5Á thick layer of TiC is formed on a cemented carbide tool by packing the tool in under carbonized TiC (16%C) of 1 mm. size and treating with gaseous CCl 4  at 1100C. A 8 Á thick layer of TiN is formed on a cemented carbide tool by heating in H 2  to 1100 in a SiO 2  or Al 2 O 3  tube and treating with TiCl 4  and N 2 .
Patent GB-787491-A (GB)
Title: Improvements in or relating to liquid mixing valves
Inventor: ATKINS HAROLD WILLIAM
IPC: A23G9/28
Filed: 1955-12-30
Abstract: 787,491. Mixing fluids in flow. DARI-GOROUND, Inc. Dec. 30, 1955, No. 37522/55. Class 86  A flavour mixing valve for manufacturing ice cream, milk shake and the like comprises a casing 10 having an inlet 14 for the introduction of a frozen food base and an inlet 19 for the introduction of a flavour fluid, an open ended cylinder 35 rotatably mounted within the casing 10 and having inlets 37, 38 adapted to co-operate with the inlets 14, 19 in the casing and a stirrer 52 for intermixing the frozen food base and flavour fluid in a central space 36 prior to the mixed product being discharged through the open end of the cylinder 35. The co-operating surface of the cylinder 35 and casing 10 are conical and are kept in fluid-tight engagement by a spring 45 located in a cap 12 which is secured to the casing 10. The cylinder 35 is rotated within the casing 10 by means of a handle 40 attached to an upper extension 41 of the cylinder 35. A motor 48 which drives the stirrer 52 is mounted on the extension 41. A flavour selector valve 20 is attached to the flavour inlet 19 whereby the inlet may be selectively connected to tubes 21, 23 each of which leads to a container containing flavour syrup under pressure. The valve 20 is operated by a handle 27.
Patent GB-1024034-A (GB)
Title: Benzofuran derivatives and process for their production
IPC: C07D307/80
Filed: 1962-10-04
Abstract: The invention comprises compounds of the general formula <FORM:1024034/C2/1> or a hydrochloride or sulphate salt thereof, wherein R1 is methoxy, R2 is hydrogen, and R3 hydrogen, carbethoxy or an acyl group derived from an aliphatic or aromatic carboxylic acid and optionally substituted by hydroxy, lower alkoxy containing 1 to 5 carbon atoms inclusive, aralkoxy or lower alkyl containing 1-5 carbon atoms inclusive, and a process for the preparation thereof comprising converting a compound of the general formula <FORM:1024034/C2/2> or the C1 to C5 alkyl ester or the acid chloride thereof, wherein R1 and R2 have the above-mentioned significances, into the corresponding benzofuran-3-propionyl-hydrazide by the action of hydrazine and converting the resultant hydrazide into the corresponding azide by action of nitrous acid, converting the resultant azide into the corresponding benzofuran-3-(beta-aminoethyl)-N-carboxylic acid alkyl ester by the action of a C1 to C5 aliphatic alcohol, which ester is the compound of Formula 1 wherein R3 is carbethoxy when the lower aliphatic alcohol is ethanol, and saponifying the said alkyl ester to yield compound (1) or the hydrochloride or sulphate salt thereof, and, if required, acylating the free base of compound (1) to obtain the corresponding acyl derivative.  In a preferred modification of the process, immediately prior to the saponification step, the corresponding benzofuran - 3 - (beta - aminoethyl) - N - carboxylic acid alkyl ester is acylated to obtain the corresponding 3 - (beta - acylaminoethyl) - benzofuran as the final product.
Patent GB-620738-A (GB)
Title: Improvements in and relating to the conservation and recovery of chemical substancesfrom viscose rayon spinning bath liquors
IPC: A23L21/18
Filed: 1946-12-23
Abstract: Recovery of sodium sulphate and conservation of other constituents of viscose spinning bath liquors containing sulphuric acid, sodium sulphate and less than 2 per cent zinc sulphate are effected by evaporating the liquor, and adding sulphuric acid if necessary, until the total amount of sodium sulphate (calculated as weight of Na2SO4) exceeds 30 per cent, e.g. 35 per cent, and the amount of sulphuric acid exceeds 17 per cent, e.g. 25 per cent, by weight of the liquor, cooling to below 32 DEG  C., separating the precipitated complex salts containing sodium sulphate, sulphuric acid and zinc sulphate, and decomposing them into their constituents by washing with a liquor containing sulphuric acid and sodium sulphate, the temperature of the wash liquor being maintained above or below 32 DEG  C. according as its concentration of sulphuric acid is respectively below or above 17 per cent by weight.  The decomposition may be effected by counter-current washing in which the acid concentration decreases as the decomposition of the complex salt progresses, and the temperature of the washing liquor is increased at and beyond the stage at which its acid content reaches 17 per cent.  Sulphuric acid may be added before the evaporation stage.  Specification 596,086 is referred to.
Patent GB-856313-A (GB)
Title: Diamino derivatives of dimeric aromatic hydrocarbons
Filed: 1958-11-24
Abstract: Polyamides are produced by reacting sebacic or adipic acid with a diamine, the molecules of which are built up of both cyclic and acyclic carbon skeletons.  The diamines are prepared by hydrogenating the diamines obtained by reacting benzene (or an alkyl benzene) with an aliphatic diolefine, or a cyclic diene, and hydroxylamine in the presence of a metal salt, e.g. titanous chloride, which undergoes an oxidation-reduction reaction with hydroxylamine (see Group IV(b)), whereby cross-dimerization and amination take place.  Suitable diolefines are:- butadiene, isoprene, dimethyl butadiene, and methyl-1, 3-pentadiene.  Cyclic dienes referred to are:-cyclopentadiene and cyclohexadiene-1, 3.ALSO:Diamino derivatives of bicyclohexadiene or alkyl-substituted bicyclohexadienes are prepared by the action of hydroxylamine on a solution of benzene, or alkyl benzene, in a lower aliphatic alcohol which contains a metal salt that undergoes an oxidation - reduction reaction with hydroxylamine.  In the case of benzene, the product is diaminobicyclo-hexadiene; and this may be hydrogenated to obtain diaminobicyclohexyl, or it may be dehydrogenated to obtain benzidine. Specified alkyl-substituted benzenes, which may be employed in the reaction, are toluene, the xylenes, ethylbenzene, and durene. Hydroxylamine in which organic radicals are substituted in place of one or both aminohydrogen atoms may also be used in the reaction. Suitable metallic salts are titanous chloride, titanous acetate, titanous nitrate, zirconium trichloride, stannous chloride, manganous chloride, and vanadous chloride.  In Example 1, titanium tetrachloride in methanol is subjected to hydrogenation at 500 p.s.i. using a finely-divided platinum catalyst.  The resulting titanous solution is then mixed with benzene and a solution of hydroxylamine hydrochloride in methanol, the temperature being maintained at 25 DEG C.  The reaction-product is hydrogenated at 1400 p.s.i. using a palladium-on-carbon catalyst.  A portion of the methanol is then evaporated, water added, and caustic is added to precipitate the titanium.  The slurry is extracted with isopropanol.  Distillation of the isopropanol, methanol, and water from the extract yields diaminobicyclohexyl, which is finally distilled under reduced pressure.  Example 2 describes the preparation of diaminodimethylbicyclohexyl from toluene as starting-material.  The reaction may also be carried out in the presence of an aliphatic diolefin or a cyclic diene such as cyclopentadiene.  In Example 4, the reaction is carried out as in Example 1, except that butadiene is passed into the reaction vessel.  The final vacuum-distillate is collected as several fractions, which contain diamines having both butadiene and benzene as precursors.
Patent GB-343232-A (GB)
Title: Improvements in metal strengthening plates for use in packing cases or other boxes or chests
IPC: B65D6/36
Filed: 1929-12-11
Abstract: 343,232. Strengthening plates for packing-cases &c. COLSON, G. F., Ivy Bungalow, Alkrington, Middleton, Lancashire. Dec. 11, 1929, No. 37971. [Class 18.] Strengthening-plates for use on packing-cases or wood or other chests consist of metal strips 1 with broad-based curved prongs 2 struck up from the ends. The prongs may be serrated and the strip may be bent to serve as a corner-piece. Prongs may also be formed at intermediate points. Specification 148,585, [Class 18, Boxes &c.) is referred to.
Patent GB-322366-A (GB)
Title: Improvements in heat exchanger for recovering heat from industrial waste water
IPC: F28F9/013
Filed: 1928-12-24
Abstract: 322,366. Dehn, F. B., (Whitlock Coil Pipe Co.). Dec. 24, 1928. Heating liquids.-waste hot liquids are passed through a chamber or series of chambers in each of which they enter by an inlet extending the whole width, such as over a weir 12, and pass generally downwards to the other end through an outlet again extending the whole width, for example under a partition 14, whence they may pass over another weir either to waste or to another chamber. In each chamber a series of tubes 20 is arranged so that the liquid to be treated passes through them generally upwards in counter-current. The inlet partition 12 extends above the level of the pipe assembly 20.
Patent GB-1365379-A (GB)
Title: Outdor swimming pool with dome
IPC: E04H4/10
Filed: 1971-08-16
Abstract: 1365379 Swimming pool covers H C BURKHOLZ and N K BURKHOLZ 16 Aug 1971 [27 Aug 1970] 38296/71 Heading A4N [Also in Division E2] A swimming pool 10, has supported on its peripheral rim a dome 20 comprising a framework of, for example, aluminium tubes, over which is stretched a flexible sheet 40. The framework is formed of a plurality of tubular supports 22, each support extending from a bracket 23 bolted to the top rail 15 of the pool to a central connector member 21. Each tubular support is formed by four slidably-connected sections 27-30, each section having at its lower end a spigot which engages the upper end of the adjacent lower section. The flexible sheet 40 is formed from a plurality of sections welded together and is provided about its periphery with grommets 45, 51 by which it is secured to hooks 46 on the pool, by means of S-shaped hooks 47, resilient straps 50 and a line 52. Access to the pool is gained via a door 55, and windows 60 may be provided for ventilation, the door and windows being fitted with zip fasteners. The pool 10 comprises a floor 11 and a bottom rail 12 from which rise vertical legs 13 which are inter-connected at the top by a top, rail, 15. The vertical legs 13 are joined by side walls 16 and the pool has a flexible liner 17.
Patent GB-1400544-A (GB)
Title: Gating circuits
IPC: H03K17/74
Filed: 1972-08-17
Abstract: 1400544 Gating circuits WESTERN ELECTRIC CO Inc 17 Aug 1972 [23 Aug 1971] 38382/72 Heading H3T A gating circuit includes a diode bridge 11<SP>1</SP>- 14<SP>1</SP> having control terminals 305, 306 connected to current sources 31, 32 and also to bias sources 39, 40 via diodes 151, 16<SP>1</SP> respectively, there being provided a switching arrangement 18<SP>1</SP>, 19<SP>1</SP> for alternately switching the gating circuit on or off. The gate is of the sample and hold type for storing at an output capacitor 24<SP>1</SP> a sampled value of the input at 301. The voltage V 1 , V 2  developed across the bias source resistors 39, 40 respectively are compared at an operational amplifier 41 for balancing the bridge drive currents supplied by transistors 31, 32 and for equalizing the bias voltages V 1 , V 2  so that all the four diodes of the bridge are switched off or on together by the switching on or off of the complementary pair of switches 18<SP>1</SP>, 19<SP>1</SP>. A mismatch in 31, 32 is automatically compensated by the above arrangement while a mismatch of 18<SP>1</SP>, 19<SP>1</SP> requires an adjustment in the bias resistors 39, 40. In order to render such adjustment insensitive to the matching of 31, 32 at least one of the bridge drive currents I 31 , I 32  is rendered constant by comparison of a voltage derived from it with a reference voltage in a second operational amplifier (50, Fig. 4, not shown). When the diodes 11<SP>1</SP>-14<SP>1</SP> are not matched or if the input at 301 is D.C. offset, resistors 39, 40 are further adjusted so that an unbalanced gate drive for achieving a zero output pedestal is obtained. The embodiment of Fig. 4 (not shown) also includes an arrangement including a constant current source (80- 82), Zener diodes (60, 64) and a differential pair of transistors (70, 71) for supplying signals of alternating polarity from an input clock signal for driving the switch transistors 18<SP>1</SP>, 19<SP>1</SP> on and off respectively.
Patent GB-1505879-A (GB)
Title: Acylated orgotein
IPC: C12N9/02
Filed: 1975-09-19
Abstract: 1505879 Antiinflammatory compositions containing acylated orgotein DIAGNOSTIC DATA INC 19 Sept 1975 [20 Sept 1974] 38520/75 Heading A5B [Also in Division C3] A pharmaceutical preparation having antiinflammatory activity comprises an orgotein wherein the E-amino group of at least one lysine residue is acylated in admixture or conjunction with a pharmaceutically acceptable carrier. The acyl radical may be derived from an aromatic, unsaturated or saturated aliphatic, araliphatic or cycloaliphatic, substituted or unsubstituted, monobasic or polybasic carboxylic acid having up to 18 carbon atoms, from a carbamic acid, from a heterocyclic acid, or from a sulphonic acid having up to 18 carbon atoms. The said preparation is preferably in the form of a sterile injectable solution or suspension for infusion, topical administration or esteral administration. In the Examples, the preparations also comprise (A) (G) dextrose, (B) (C) water or isotonic saline, (D) (F) sucrose, (E) phenol, tbimersol, methyl paraben, sodium azide or benzyl alcohol, (H) 21-sodium succinate ester of hydrocortisone, 21-sodium succinate ester of 6 - methylprednisolone, dexamethasone or betamethasone.
Patent GB-1067578-A (GB)
Title: Process for the manufacture of paper having a high degree of opacity
IPC: B29C48/91
Filed: 1963-09-30
Abstract: A composition used to opacify paper (see Division D2) comprises a solution of polyvinyl chloride in a mixture of two parts of acetone and one part of isopropanol.ALSO:Light-weight paper is made opaque by impregnating an absorbent fibrous web with a solution of a solid organic polymeric material in a volatile organic solvent, incorporating in the solution a volatile organic liquid that is miscible with the solvent and can, when present in sufficient amount, precipitate the polymeric material as fine particles between the fibres of the web, causing the concentration of the precipitant liquid to attain a value at which the polymeric material so precipitates, and evaporating off the solvent and the precipitant liquid at a temperature below that at which the particles of polymeric material coalesce.  The precipitant liquid may be less voltaile than the solvent and present with it in the solution as applied, in such proportions that the polymeric material is in solution, as applied, but is precipitated during the evaporation. The polmeric material may be a cellulose ester, cellulose ether, addition polymer or condensation polymer.  The specification lists examples of each, and also suitable solvents and precipitants.  The solution may also contain a dye or pigment.