baber/WOPTO huggingface dataset:
Patent GB-1008274-A (GB)
Title: Process for the manufacture of steroid-dienes
IPC: C07J75/00
Filed: 1962-11-12
Abstract: The invention comprises (1) a process for preparing 19 - oxygenated - D 4,6 - 3 - oxo - steroids of the androstane, pregnane, cholane, cholestane, spirostane or cardanolide series by treating corresponding 19 - oxygenated - D 4 - 3 - oxo-steroids with a dehydrogenating agent such as manganese dioxide or a quinone; and (2) D 4,6 - 3 - oxo - 6 - halogeno - 19 - hydroxy -pregnadienes. The 19-group in the starting materials for process (1) may be a free, esterified or etherified 19-hydroxyl group or a free or protected 19-oxo group or an esterified steroid 19-acid, and the starting material may also contain free, ketalized or enolized oxo groups, esterified or etherified hydroxy groups, alkyl groups or halogen atoms in other positions of the steroid nucleus and 17-side chain, particularly 6-halo or 6-methyl groups.  The new steroids (2) are particularly D 4,6 - 3,20 - dioxo - 6 - chloro - 19 -hydroxy-pregnadiene and the 17a -hydroxy and -acetoxy analogues thereof.  Examples are given.  D 4 - 3,20 - dioxo - 6a  - chloro - 17a  - acetoxy - 19 -hydroxy-pregnene is prepared by acetylating D 4 - 3,20 - dioxo - 17a  - acetoxy - 19 - hydroxy-pregnene to give D 4-3,20-dioxo-17a ,19-diacetoxy-pregnene, converting this to the D 3,5-3-ethyl enol ether, treating this with N-chloro-succinimide to give D 4 - 3,20 - dioxo - 6a  - chloro - 17a , 19 - diacetoxy-pregnene and selectively hydrolysing this.  Other 19-oxygenated-6-halogenated-D 4-3-oxo-steroids are prepared similarly via enol ethers or esters.  Specifications 994,749, 1,007,256 and 1,007,257 are referred to.
Patent GB-955886-A (GB)
Title: Material having a two-component diazotype coating
IPC: C07D295/096
Filed: 1961-12-01
Abstract: Di-alkyl phenols of formula: <FORM:0955886/C2/1> wherein R1 and R2 are alkyl groups containing not more than 5 carbon atoms in a straight chain, R3 is alkyl, aryl, aralkyl, substituted alkyl carboxyl or carboxyalkyl and in which the piperazine ring may be substituted by alkyl groups containing not more than 5 carbon atoms in a straight chain may be prepared by reacting a dialkyl phenol with equimolecular quantities of formaldehyde and a piperazine substituted at one nitrogen atom only. Suitable phenols are 2,5-dimethyl, 2, 3-dimethyl.  3, 5-dimethyl, 2, 6-dimethyl, 3-methyl -5- ethyl, 2-methyl -5-isopropyl, 5-methyl -2- isopropyl and 3-methyl -6-ethyl. Suitable piperazines are N-methyl, N-ethyl, N-benzyl, N-(b )-hydroxyethyl, N-tolyl, N-phenyl, N-carboxyl, N-phenyl-2-methyl, N-phenyl-2-ethyl and N-phenyl -3 ethyl.
Patent GB-1144560-A (GB)
Title: Improvements in films and sheets
IPC: C08L1/12
Filed: 1966-09-27
Abstract: 1,144,560. Plasticized cellulose acetate. CELANESE CORP. 27 Sept., 1966 [30 Sept., 1965], No. 43070/66. Heading C3F. Cellulose acetate contains up to 12À5% by weight of 2,2,4-trimethylpentane-1,3-diisobutyrate as plasticizer. Films may be cast from such a composition in, e.g. acetone or MeOH/ methylene chloride, optionally together with hydrated alumina or stearic acid. Films may also be made from the melt.
Patent GB-1397038-A (GB)
Title: Electronic flash gun
IPC: G03B15/05
Filed: 1973-09-13
Abstract: 1397038 Supply circuits for flash tubes; voltage multiplying converters FRANKE & HEIDECKE GmbH [trading as ROLLEIWERKE FRANKE & HEIDECKE] 13 Sept 1973 [25 Sept 1972] 43080/73 Headings H2H and H2F An electronic flash gun comprises a flash tube 32, a D.C. voltage source 11 and an n-stage (n#1) voltage mutliplying circuit 19 which includes two chains each of n rectifiers 20, 21, n + 1 sotrage capacitors 22, 23 and n switches 24. Fig. 1 shows a single stage voltage multiplying circuit in which the switch 24 may be a gas filled tube or a thyristor. Each capacitor is charged to the source voltage via its associated diode but when a device 27 supplies trigger pulses through respective transformers 25, 33 to the switch 24 and the tube 32, the capacitors are connected in series to supply twice the source voltage to the flash tube. The short circuiting of terminals 17, 18 by the switch 24 causes a contact 14 of a switch 15 to open to disconnect the source 11 from the circuit 19. The switch 15 re-closes when the flash tube discharge has terminated.
Patent GB-1277501-A (GB)
Title: Variable capacitance diode fabrication
Inventor: ENGELER WILLIAM ERNEST
IPC: H01L21/00
Filed: 1969-09-02
Abstract: 1277501 Semi-conductor devices GENERAL ELECTRIC CO 2 Sept 1969 [18 Sept 1968] 43426/69 Heading H1K A variable capacity diode is manufactured in a P(N)-type layer 11 on a P+(N+)-type substrate 10 by epitaxial deposition, through an aperture in a passivating layer 12 of a layer 14 heavily doped with N(P)-type impurities partially compensated by P(N)-type impurities. The P(N)-type impurities in the layer 14 have a higher diffusion rate than the majority N(P)- type impurities, so that a heating stage during or subsequent to the deposition process causes P(N)-type impurities to preferentially diffuse into the layer 11 producing a P+(N+)-type region 15 defining a hyper-abrupt junction with the layer 14. The layer 11 is preferably itself formed epitaxially. In the form shown the substrate 10 and layer 11 are of Si containing B, Al, Ga or In and the layer 14 contains As or Sb partially compensated with B or Ga. If the conductivity types are reversed the layer 14 may contain Ga or B partially compensated with P. Growth of the layer 14 may be from an atmosphere of iodine containing Si or by hydrogen reduction of SiCl 4 . The passivating layer 12 may be of silicon oxide, nitride or oxynitride or a glass containing silicon, oxygen and nitrogen.
Patent GB-1435367-A (GB)
Title: Valves
IPC: B63C11/22
Filed: 1973-09-18
Abstract: 1435367 Valve I V PRESSURE CONTROLLERS Ltd 13 Nov 1974 [18 Sept 1973] 43842/73 Heading F2V [Also in Divisions A5-A6] A valve has four parts 1, 2, 3 and 4 in a easing 5 and a valve member 6 for movement to control flow by, in a first position placing ports 1, 2 and 3 in communication and closing port 4 and in a second position placing ports 2 and 4 in communication and closing ports 1 and 3, there being a non-return valve 10 at port 1 preventing flow from the casing and a non- return valve 11 at port 3 preventing flow into the casing. The valve member may have rotary movement and have a through bore 7 and a branch bore 8 the ports 1 and 3 being opposite one another and ports 2 and 4 extending in mutually perpendicular directions which are also perpendicular to the directions of ports 1 and 3. An elastomer seal, Fig. 7, between the valve member and casing is retained in grooves in the valve member with sides 9E and 9F placed circumferentially either side of the bore 7. The valve is for incorporation in a diving mouthpiece as part of a closed circuit having a first air bag (not shown) connected to the first port 1, the mouthpiece connected to the second port 2, the third port 3 connected to a second air bag (not shown) and port 4 open to surroundings. With the valve in its first position (port 4 sealed), for diving, the first air bag receives a trickle of oxygen, the second air bag receives exhaled air, from the second valve port 2, which is returned via a soda lime filter to the first air bag. With the valve in its second position the closed circuit is blocked and air can be inhaled and exhaled through the mouthpiece port 2 and atmospheric inlet/outlet 4 thus saving oxygen when not diving.
Patent GB-885899-A (GB)
Title: Improvements in bearings for tapered shafts
Inventor: WECKSTEIN SAMSON M
IPC: F16C19/38
Filed: 1959-12-29
Abstract: 885,899. Bearings. TIMKEN ROLLER BEARING CO. Dec. 29, 1959, No. 44079/59. Class 12 (1). [Also in Group XXII] A bearing assembly for a tapered shaft 10, Fig. 1, having inner races 24, 30, 34 with tapered bores which are an interference fit on the shaft, comprises means for supplying fluid under pressure to the joint faces to release the bearings from the shaft, and co-operating means on the shaft and the bearing housing 40 to limit axial displacement of the housing due to this pressure and prevents damage to the bearings. The bearing assembly 21, Fig. 1, comprises three inner races supporting rollers 22, 26, 28, 32 and two outer races 36, 38, in the housing 40. The bores of the inner races are tapered and are an interference fit on the shaft 10, and adjacent each inner race is a groove 74, 76, 78 communicating with axial passages in the shaft through which fluid under pressure is supplied to break the interference fit to allow the bearings to be disassembled. To assemble the bearings a bearing ring 48 is placed at the end 44 of the shaft, the housing 40, along with the bearings, is moved towards the ring, and a pressure ring 62 is loosely located on the shaft by a block 66 secured to the housing 40. A thrust member 18 is secured in a groove 16 in the shaft and pressure is applied between the members 18, 62 by e.g. an hydraulic jack, and the inner races are seated tightly on the shaft and against bearing ring 48. The member 18 is removed and a ring 20 is placed on the portion 14 of the shaft to receive an internally screwed ring 64. The member 18 is replaced and the ring 64 is rotated on ring 20 until the members 62, 64, 20 and 18 are jammed tight, and a screw 65 locks the members 64, 62. To disassemble the bearings the members 18, 20 and 64 are removed and fluid pressure is supplied to the groove 78, the axial force of such pressure moving the race 34 to the left and the movement is limited by a flange on the member 62 engaging the block 66. Pressure fluid is then supplied to the groove 76 thus moving the race 30 along with the housing 40 to the left, the movement being limited by a flange 60 on the housing engaging the race 24. Finally, pressure fluid is supplied to the groove 74 and the race 24 moves to the left thus enabling the bearing assembly to be removed from the shaft. The bearings are sealed by seals 52, 70. In a modification, Fig. 2, the bearing ring 48 is replaced by an extension 90 of the inner race 24, and the flange 60 is replaced by a flange 104 on a ring 92 which engages adjustable plates 98, secured to the block 94, after the ring is adjusted axially on the ring 20 to the required position. The seal 108, Fig. 2, may be replaced by a seal engaging the end 25 of the shaft.
Patent GB-1244737-A (GB)
Title: Waste disposal system
IPC: B60P3/36
Filed: 1968-09-18
Abstract: 1,244,737. Waste disposal systems in motor vehicles. STANDARD PRODUCTS CO. 18 Sept., 1968 [19 Sept., 1967], No. 44396/68. Heading B7B. Waste material collected in a vehicle is deposited in tank 25 which functions as a septic tank. The liquefied waste when it rises to filter 31 is pumped to tube 59 by the temperature activated pump 33. The liquid substantially vaporizes in tube 59 due to the stream of hot gases passing through the exhaust assembly from the I.C. engine which has been running for some time. Specification 1,139,277 is referred to.
Patent GB-1063857-A (GB)
Title: Gripping device for heavy-service lifting machines
IPC: B66C1/48
Filed: 1963-11-11
Abstract: 1,063,857. Lifting-dogs. SCHMIDT, KRANZ & CO. G.m.b.H. Nov. 11, 1963 [Nov. 17, 1962], No. 44445/63. Heading B8H. A lifting-dog comprises a housing 1 with a fixed jaw 1a to which is pivoted at 3 a movable jaw 2 closed by a chain 6 extending round rollers 17, 16, between a pivotal connection 4 on the jaw and a lifting eye 7. The jaw 2 is urged towards a closed position by a tension spring 11, located in a recess 10, and attached to the jaw 2 at 12 and the housing at 13. The fixed jaw has a removable gripping insert 8. The width b of the jaw is not less than its depth. t. The device may be used for lifting horizontal sheets with or without the provision of a counter-roller for the roller 17.
Patent GB-1294560-A (GB)
Title: Weft storage device for looms
IPC: D03D47/00
Filed: 1970-09-21
Abstract: 1294560 Looms NORTH AMERICAN ROCKWELL CORP 21 Sept 1970 [22 Dec 1969] 44813/70 Heading DIE A weft storage device comprises a rotating tapered drum 34 with vacuum applied to its interior and having a port 40 in its periphery to hold the weft in contact with the drum. Weft is drawn continuously from a supply by a pair of rollers 41 and 42 in frictional contact with each other, and mounted at the end of a pivoted arm 43 which is biassed by a spring a pair of rollers 41 and 42 in frictional contact with the periphery of drum 34. Drum. 34 is driven from the loom crankshaft via an intermediate gear (67), Fig. 3 (not shown). A weft inserting air jet 20 is operated by a piston pump (69) actuated through a bell crank lever (71) by a cam (75) on the loom crank shaft.
Patent GB-1285479-A (GB)
Title: Latex composition
Inventor: SPEKTOR ERLEN MORDUKHAEVICH
IPC: C08K3/34
Filed: 1970-09-23
Abstract: 1285479 Coating VSESOJUZNY NAUCHNO-ISSLEDOVATELSKY INSTITUT NOVYKH STOITELNYKH MATERIALOV 23 Sept 1970 45235/70 Heading B2E [Also in Division C3] Compositions for coating surfaces of, for example, artificial leather, paper, cardboard, concrete and asbestos-cement sheets, comprise (i) a rubber latex, e.g. vulcanised styrene-butadiene copolymer latex, (ii) a water-soluble glass, and (iii) sodium aluminate, there being 1.3-5.4 parts by weight of (iii) per part of SiO 2  in (ii), and 1-10 parts of SiO 2  in (ii) per 100 parts of rubber in the latex. Additional ingredients are kaolin and phenyl-#-naphthylamine.
Patent GB-1314781-A (GB)
Title: Data processing apparatus
IPC: G06F7/24
Filed: 1971-09-29
Abstract: 1314781 Sorting digital data INTERNATIONAL BUSINESS MACHINES CORP 29 Sept 1971 [31 Dec 1970] 45279/71 Heading G4M Data processing apparatus is arranged to sort data into strings, which are subsequently merged to produce a single sorted output sequence, using a fist storage area with a capacity of LL records and a second storage area with a capacity RxLL such that the lengths of the strings can be varied by adjusting the multiplier R to suit the equipment available for merging the strings. The first LL records of an unsorted sequence are entered into the first store; a comparison is then made between the record in the store having the lowest sort key and the subsequent records in the sequence. Each time the comparison is made, if the subsequent record is higher it replaces the lowest record in the first store and this lowest record is appended to an output string; if however the subsequent record is lower it is placed in the second store. When the second store is full (i.e. it contains RxLL records) the output string is completed by adding to it, in sequence, the LL records remaining in the first store and a new output string is started. The first LL records from the second store are entered into the first store and the comparison made as before with each of the records left in the second store and then with those in the unsorted sequence. As before lower records are returned to the second store and when it is again full the second string is completed. This is repeated until all the input records have been allocated to output strings which are then merged in known manner. The first storage area is in primary storage while the second storage area and the stored strings are in secondary storage. The method is useful in a time sharing computer since the lengths of the output strings are not limited by the size of primary storage available.
Patent GB-1402499-A (GB)
Title: Receptacles
IPC: A01G9/02
Filed: 1973-09-27
Abstract: 1402499 Furniture leg brackets R F URBAN 27 Sept 1973 [17 Oct 1972] 45303/73 Heading F2M  An angle bracket for securing a seed tray to a leg member 23 to facilitate stacking, see Fig. 1 (not shown), is provided with outwardly turned flanges 26 for attachment to the corners of the side walls of the tray and inwardly-directed flanges 42, 44 to slidably receive the legs 23 therein, the legs being grooved at 48 to locate the flanges 44 and the uppermost part of the legs 23 serving to locate the base of the tray thereon. The bracket is bolted and nailed to the side walls of the tray, see Figs. 2, 3 and 5 (not shown).
Patent GB-1011306-A (GB)
Title: Suspension device for the drawband of typewriting machines
IPC: B41J19/36
Filed: 1962-11-30
Abstract: 1,011,306. Typewriters. OLYMPIA WERKE A.G. Nov. 30, 1962 [June 16, 1962], No. 45356/62. Heading B6F. The draw band 8 for the carriage 1 of a typewriter is connected to a resiliently-mounted slide 6 spring-mounted on a shaft 4 used for pivoting the feed-rollers away from the platen of the typewriter.
Patent GB-1024329-A (GB)
Title: Imino bis (sulphuryl halides)
IPC: C01B21/093
Filed: 1962-12-04
Abstract: The invention relates to imino bis(sulphuryl halides), HN(SO2X)2, where X is chlorine or fluorine.  The compounds may be prepared by the reaction of the corresponding halosulphonic acid with the corresponding halosulphonyl isocynate, the halogen in both reactants being the same.  The latter reagent may be formed in situ by the action of the corresponding halosulphonic acid on urea in a molar ratio of 2 : 1. The preparations may be carried out without using solvents.  In a typical example, fluoro-sulphonic acid was added to urea and the reaction mixture was distilled at 1 mm. Hg. Unreacted acid was separated by fractionation from the distillate which yielded (60% theoretical) imino bis(sulphuryl fluoride).  The imino bis(sulphuryl halides) are hydrolysed by water to sulphamic acid, caustic potash gives potassium imino sulphate, HN(SO2OK.)2, and potassium amide in liquid ammonia gives the N-K amide, KN(SO2NH2)2.
Patent GB-1017464-A (GB)
Title: Improvements in or relating to pneumatic tyres and to methods of their manufacture
Inventor: COOPER JOHN GILBERT
IPC: B60C13/04
Filed: 1961-12-28
Abstract: 1,017,464. Pneumatic tyres. DUNLOP RUBBER CO. Ltd. Dec. 5, 1962 [Dec. 28, 1961], No. 46383/61. Heading B7C. A pneumatic tyre is formed by positioning a main layer, comprising portions 3, 5 of different coloured rubber, around a sidewall region of the tyre carcass 1 and a capping layer 7 of darker rubber, preferably neoprene, wholly over the lighter coloured portion 5, after moulding and vulcanizing the tyre, part of the capping layer 7 is removed to expose at least part of the lighter coloured portion 5. The darker portion 3 of the main layer overlaps the edge portion of.the tread 2. In the embodiment shown in Fig. 1 a further layer 8 of neoprene overlaps the radially outer edge of the capping layer 7. A chafer strip 9 may extend from the bead edge of the carcass 1 to overlap the radially inner edge of the white portion 5. In a modification, Fig. 4, the capping layer is superposed on the white portion and the dark rubber of the main layer is applied in two strips 12, 13 disposed on each side of the white portion. In another embodiment, Fig. 6, the dark portion of the main layer comprises a strip 14 overlapping the edge of the tread 2, and two parts 15, 16 of neoprene disposed on each side of the white portion, with the capping layer superposed upon both the white and the neoprene portions of the main layer. In a modification, Fig. 7, the neoprene parts 15, 16 are joined to form a single strip 19, the white strip being inserted in a depression 19a in the strip 19.
Patent GB-928751-A (GB)
Title: Improvements in or relating to tape capstan units
Inventor: TURNER FREDERICK JAMES LESLIE
IPC: G06K13/22
Filed: 1961-12-28
Abstract: 928,751. Feeding webs. CREED & CO. Ltd. Dec. 28, 1961, No. 46430/61. Class 100 (1). [Also in Group XXXVIII] A capstan unit for augmenting the feeding of tape between spools 33, 34 includes a pair of rollers 6, 14 which in a first position allows free passage of tape between the rollers, means for moving one roller from its first position to a second position to cause engagement of tape by both rollers, means for driving the rollers in opposite directions, and separate means for maintaining the rollers in the second position during tape feeding. As shown, a reversible electric motor 1 drives the roller 6 on a shaft 2. The shaft 2 carries a freely pivotable brake arm 7, a gear 8 free on the shaft, and a gear 9 fixed to the shaft. An arm 10 free on shaft 2 carries a shaft 13 secured to roller 14. The shaft 13 carries gears 15, 16 meshing with the gears 8, 9, respectively. To render rollers 6, 14 operative the motor 1 is energized to rotate shaft 2 in the direction A, thus rotating arm 7 which rocks a latching lever 25 through a pin 24. Arm 10 is swung counterclockwise through gears 15, 16, the gear 8 being held stationary by a brake comprising a plate 18 co-operating with a pin 17. The arm 10 is retained in the Fig. 3 position by lever 25 engaging a pin 31. The rollers 6, 14 are returned to inoperative position by reversing the direction of rotation of the motor 1. Specification 912,779 is referred to.
Patent GB-1285705-A (GB)
Title: Device for use in the testing of valve seats
Inventor: PARKINSON HORACE JOHN
IPC: G01M3/28
Filed: 1968-10-01
Abstract: 1285705 Testing valves JOSEPH LUCAS (INDUSTRIES) Ltd 17 Nov 1969 [1 Oct 1968] 46449/68 Heading F2V A device for testing the seating of a valve component 17, comprises a chamber 11 which is transparent and has an inlet with a non-return valve 14 at its lower end, partially filled with liquid, e.g. kerosene, an outlet 22 at its upper end, and a coupling 19 with an annular seal receive the component 17. In operation air is drawn from the chamber by an ejector 23, and any leakage past the seating in the component 17 will bubble through the liquid in the chamber 11, and be detected. Flow through the inlet is controlled by a needle valve 16. A gauge 24 indicates the pressure in the chamber 11.
Patent GB-1446177-A (GB)
Title: Thermosetting and storage-stable mixtures
IPC: B29B7/00
Filed: 1973-10-04
Abstract: 1446177 Laminates C1BA GEIGY AG 4 Oct 1973 [10 Oct 1972] 46491/73 Heading B5N [Also in Division C3] Laminates are made by impregnating fabrics, mats, or fleeces of glass fibre with a solution of suspension of a prepolymer, drying, and pressing at 170-250‹ C. and 5-200 kp/cm.<SP>2</SP>, or precuring the laminates in the press and post-curing in an oven at 200-280‹ C. The prepolymer is made by heating a mixture containing (a) polyimides of unsaturated dicarboxylic acids (I) (b) polyamines (II) D-(NH 2 ) y  or (III) and (c) azomethines (IV) R 2 R 3 C=NR 4 , (V) and optionally (d) a curing catalyst, where A and E are C 2-30  radicals ; B is D is a C 2-40  radical; R 1  is a radical obtained by removing the 0 atom from a C 1-8  aldehyde or ketone; R 2 , R 3 , R 4  and R 5  can be C #  12  aliphatic, cycloaliphatic, or cycloaliphatic-aliphatic, C 6-12  aromatic, C#20 araliphatic, or heterocyclic or heterocyclic-aliphatic; R 2  can also be H; and (R 2  + R 3 ) can, with the C atom to which they are attached, form a cycloaliphatic ring system; and R 5  and either or both of R 2  together with the C atoms to which they are bonded can form 1 or 2 cycloaliphatic rings; x is 2 or 3, y is 2-4, and m is 0À1-2. There may be 0À01-5% wt. based on the mixture of catalyst (d), which may be a peroxide or persalt.
Patent GB-1443728-A (GB)
Title: Process for removing sulphur oxides and nitrogen oxides from flue gases
IPC: B01D53/56
Filed: 1973-10-08
Abstract: 1443728 Separating oxides of nitrogen and sulphur from flue gases HITACHI Ltd 8 Oct 1973 [9 Oct 1972 23 Oct 1972 13 Nov 1972] 46950/73 Heading B1L [Also in Division C1] Nitrogen oxides and/or sulphur oxides are removed from flue gases containing them and free oxygen by contacting the flue gases with a carbonaceous material having adsorbed thereon at least one of ammonium iodide, bromide and chloride, while providing ammonia in a quantity at least sufficient to react with the oxides. The ammonium halides may be formed in situ by adsorbing the corresponding halogen or hydrogen halide on to the activated carbon and then reacting with ammonia.