baber/WOPTO huggingface dataset:
Patent GB-1171998-A (GB)
Title: Gas Centrifuge
IPC: B04B5/08
Filed: 1967-03-23
Abstract: 1,171,998. Gas centrifuges. DORYOKURO KAKUNENRYO KAIHATSU JIGYODAN. 23 March, 1967 [29 March, 1966], No. 13644/67. Heading B2P. In a centrifuge comprising a rotary chamber 20 rotatably mounted within an outer chamber 10, Fig. 1, a mixture of gases of different molecular or atomic weights are separated by feeding the mixture through a port 30 into the chamber 20, removing, from different parts, e.g. the two end portions, of the chamber through holes 25, 26 into different regions A, B between the outer and rotary chambers, parts of the gas mixture rich in components of different molecular or atomic weights, and removing the differently enriched parts of the mixture from the regions A, B through pipes 13, 14 to the outside of the chamber 10, a gas of low molecular or atomic weight relative to the components of the gas mixture being caused to flow through pipes 11 into the region 50 between the chambers 10, 20 so as to sweep into the regions A, B and be evacuated with the differently enriched parts of the mixture. The gas mixture may be uranium hexafluoride which it is desired to separate into uranium 235-rich and uranium 235-poor gases. The gas of low molecular or atomic weight may be helium. The pipes 11, Fig. 3, are provided with nozzles 12 for directing the gas tangentially to, and in the direction of rotation of, the Cylinder 20. Flanges 27, 28 at the ends of the chamber 20 provide clearances 31, 32 for the passage of the gas of low molecular or atomic weight. An infra-red or steam heater 40 fitted with a reflector 42 conducts heat to the end plate 21 of the chamber 20 and a cooling device 41 cools the end plate 22. The pipes 13 14 are connected to a vacuum pump. In the embodiment of Fig. 5, the chamber 20 has cylindrical end projections 33, 34 in the peripheral walls of which are provided the holes 25, 26 which communicate with spaces between pairs of annular plates 53a, 53b and 54a, 54b fixed to the chamber 10. These spaces communicate with the pipes 13, 14. The low molecular or atomic weight gas entering through the pipes 11 passes through clearances 31, 32 between the chamber 20 and annular projections 51 formed on the inner wall of chamber 10, and passes into the spaces between the plates 53a, 53b and 54a, 54b partly directly through clearances 57, 58, and partly indirectly through intercommunicating elliptical pipes 55a-d and 56a-d, Fig. 8, and further clearances 57, 58. The gas mixture to be separated is fed in through a pipe 15 and a bore 30 in the lower shaft 24 of the chamber 20.
Patent GB-1145975-A (GB)
Title: Improvements in or relating to 5ª,6ª-methylene steroids
IPC: C07J63/00
Filed: 1966-03-28
Abstract: 1,145,975. 5#,6#-Methylene steroids. SYNTEX CORP. 28 March, 1966 [31 March, 1965 (2)], No. 13646/66. Heading C2U. Novel steroids of the Formula (I) (wherein in (I) R is O, α-R<SP>1</SP> (#-COCH 3 ) or α-R<SP>3</SP>(#-OR<SP>2</SP>) in which R<SP>1</SP> is H, OH or O acyl, R<SP>2</SP> is H, tetrahydropyranyl or acyl and R<SP>3</SP> is H, C 1-8  alkyl, C 2-8  alkenyl or C 2-8  alkynyl; and Z is a #<SP>1(10)</SP>- or #<SP>9(10)</SP>-double bond; the acyl groups being derived from hydrocarbon carboxylic acids of less than 12 carbon atoms which are optionally substituted) are prepared by treating steroids of the formula (A) (wherein Ac is acyl and R<SP>4</SP> is O or α-R<SP>5</SP>(#-COCH 3 ), R<SP>5</SP> being H or acyloxy) with a compound of the formula A.B.N.CF 2 .CH.X<SP>1</SP>X<SP>2</SP> (wherein X<SP>1</SP> is F or Cl; X<SP>2</SP> is F, Cl or CF 3 ; and A and B are C 1-6  alkyl or NAB is C 5-7  alkyleneimino) at elevated temperature in a non-polar solvent to give a mixture of #<SP>9(10)</SP> and #<SP>1(10)</SP> compounds of the formula (B) and, before or after separation thereof, in the case of the pregnene compounds, hydrolysing and oxidizing to give the required 3,20-dienes and optionally hydrolysing a 17α- acyloxy group and re-esterifying if desired, or, in the case of the estrene compounds, either hydrolysing and oxidizing to give the required 3,17-diones, or converting the 17-keto group to a 17a-hydrocarbon-17#-hydroxy grouping by standard methods, and then hydrolysing, if required, and oxidizing to give the required 3-keto compounds and optionally acylating the tertiary 17#-hydroxyl group, or reducing the 3,17-diones produced as described above to the 3,17-diols, back oxidizing to give the required 3-keto-17#-ols and optionally acylating, or etherifying these or the tertiary ols with dihydropyran. 17α-Alkynyl products may be hydrogenated successively to the corresponding 17α-alkenyl and -alkyl compounds. By treatment with an acid or base the compounds of Formula (I) are converted to compounds of Formula (IV). The 5,6-methylene steroids of the invention which have a pregnane side chain or a 17α- alkynyl substituent have progestational activity and are useful in the control of fertility and in the treatment of various menstrual disorders. The other estrane compounds are anabolic agents. The compounds of the invention also have anti-androgen properties and are useful in the treatment of acne, benign prostate hypertrophy and hirsutism in females. They may be incorporated in pharmaceutical compositions with suitable carriers.
Patent GB-1267448-A (GB)
Title: Polymerizable dental restorative compositions
IPC: C08F2/00
Filed: 1969-03-14
Abstract: 1,267,448. Polymerizable dental materials. MINNESOTA MINING & MFG. CO. 14 March, 1969 [15 March, 1968; 12 July, 1968], No. 13681/69. Heading C3P. Mouldable dental restorative compositions having a moisture absorption, after hardening and exposure to moisture, of less than 2% by weight comprise an inorganic particulate filler and a liquid binder capable of being polymerized in the presence of a free radical initiator, the binder including a polymerizable polyacrylate or polymethacrylate ester of at least one polyol having primary hydroxyl groups and the poly- (meth) acrylate being substantially free from active hydrogen atoms and devoid of peroxides. The compositions preferably include 72-78% by weight of the filler and 28-22% by weight of the binder. The binder optionally includes an accelerator for free radical polymerization; preferred accelerators are dimethyl-p-toluidine and N,N - bis - (hydroxyalkyl) - 3,5 - xylidines having 2-4 carbon atoms in the alkyl groups. Suitable fillers include silicon dioxide (quartz), lithium, aluminium silicates and hydroxyapatite; the filler may be conventionally treated to promote adhesion by the binder, e.g. with a vinyl silane treatment. The polymerizable ester used is preferably a polymethacrylate of the formula in which M is a methacryloyl group, D is a C 2 -C 5  alkylene group, a group of the formula -CH 2 -Y-CH 2 - (where Y is cycloalkylene) or 3-oxapentylene, n is 1 or 2 and X is the acyl residue of a mono- or bi-nuclear aromatic dicarboxylic acid of 8-19 carbon atoms or an unsaturated dibasic aliphatic acid of up to 5 carbon atoms. Also useful are bis- and tris- (methacryloxymethyl) derivatives of diphenyl ether. To effect polymerization of the compositions an initiator such as benzoyl peroxide is added immediately before polymerization.
Patent GB-884575-A (GB)
Title: Improvements in and relating to thermoplastic materials
IPC: C08K3/00
Filed: 1958-04-30
Abstract: A method of partially crystallizing a thermoplastic polymer derived from a terminally ethylenically unsaturated hydrocarbon comprises forming a melt of the polymer and not more than 1,000 p.p.m. of a uniformly dispersed additive, which at the temperature of crystallization of the polymer is in the form of solid particles which are insoluble in the polymer and whose particle size is not greater than 1 micron, and cooling the melt.  The additive may be a silicate, modified silica or an estersil, ammonium perfluoroheptane carboxylate, alumina, rosin, sodium chloride, sulphate or phosphate, magnesium oxide, calcium chloride or carbonate, potassium bromide or nitrate, or aluminium trichloride, phosphate, acetate or sulphate. Further additives may also be present, such as amides, e.g. oleamide or ethylene distearamide.  The polymer may be derived from ethylene, e.g. linear polyethylene, propylene, styrene or a diene and may be a copolymer of these.  The composition may be formed into film and the above crystallization may take place therein.  Specifications 532,665, 729,669 and 788,151 are referred to.
Patent GB-615344-A (GB)
Title: Improvements in or relating to draught regulators for furnaces
IPC: F23N3/04
Filed: 1946-05-06
Abstract: 615,344. Thermally-actuated valves. BOLL, A. H. May 6, 1946, No. 13703. (Class 135] Also in Group XII] In an automatic draught regulator of the kind comprising a Bourdon tube filled with liquid subjected to the temperature of the water in a boiler heated by the furnace, one end of the Bourdon tube being connected to a rod or lever actuating the furnace dampers or the like, the tube 1 is spirally coiled so that its ends overlap, one end being connected through a fitting 3 to a lever 4, the other end being connected to a dip tube 5 adapted to be screwed into the boiler or a pipe thereon. The tube 1 is filled with a liquid having a larger and substantially constant coefficient of expansion, e.g. a mixture of petroleum, benzine and petroleum ether.
Patent GB-1530869-A (GB)
Title: Drive mechanisms
IPC: B21D43/05
Filed: 1977-04-01
Abstract: 1530869 Reciprocating conveyers B J WALLIS 1 April 1977 [2 April 1976] 13795/77 Heading B8A [Also in Division F2]  A carriage 24 is reciprocated along guide bars 22 by engagement of a drive member carried on endless chain 52 with an elongate slot in a depending portion 60 of slide 26. Guide tracks 76 are provided for engaging the drive member as it passes around sprockets 42, 46 thus ensuring accuracy in the length of stroke. As described the guide tracks 76 are surfaces formed on either side of the sprocket for engaging rollers 54, 56 of the drive member. Further external guide tracks are provided by arcuate surfaces 82 on members 78, 80. Rollers 54, 56 engage respective slots 74, 72 in a C- shaped yoke 66 attached to portion 60 of the slide 26. Carriage 24 is attached to slide 26 via an actuator 28 which also controls the lateral position of gripping members 32 (see also Fig. 1, not reproduced) for picking up and setting down workpieces being transferred.
Patent GB-280118-A (GB)
Title: An electrically actuated vacuum cleaner adapted to actuate domestic appliances of various kinds
IPC: A47L7/02
Filed: 1927-05-23
Abstract: 280,118. Sch÷ttle, R. May 23, 1927. Vacuum-cleaners. -An electricallyactuated vacuum cleaner is provided with detachable fittings for connecting a flexible shaft or other driving-gear to the motor, to operate brushes or other domestic appliances located outside the casing. The motor 8 carrying a detachable fan 9 is located in a twopart casing at one end. At the other end a flexible shaft 10 is connected to the shaft 7 by a coupling 10<1> which is connected to the motor shaft by a bayonet-jointed socket 11. In a modification, where reduction gear is employed the sockets 15<1>, Fig. 3, either of which may be coupled to the motor shaft, are mounted on a shaft 15 working in a box 16 and worm geared to the shaft 7 to which the appliance may be secured. In an arrangement of this character, a suction pipe connected to the dust chamber may be employed to carry off the dust raised by the brush.
Patent GB-712996-A (GB)
Title: Improvements in or relating to method of coal coking and plant for carrying out thismethod
Inventor: PAMART CHARLES
IPC: C10B57/04
Filed: 1951-06-12
Abstract: 712,996. Materials for making coke. CHARBONNAGES DE FRANCE. June 12, 1951 [June 15, 1950], No. 13861/51. Class 55 (2) A low density coke resistant to abrasion and suitable for large capacity blast furnaces is obtained from coals having over 35 per cent volatile matter by carbonizing a mixture of the coal and semi-coke in dried and crushed state in a coke oven which is gravity charged at high charge density but without ramming. Coals from different sources are discharged into track hoppers 2 where measured amounts are fed to an elevator 5 supplying a dryer 6 in which the material descends by gravity in counterflow to high speed gases so that it is quickly heated to 60‹-70‹ C A cooler-ventilator 8 removes steam and a separator 9 dust, before the coal is reduced by a crusher 10 and hammer mill 11. Part of the material is converted to semi-coke in an oven 14 and delivered after grinding and screening to a hopper 13b. The rest is fed to hoppers 13 and a regulated mixture is passed through a mixer 18 to a feeder 20 discharging into a bench of ovens, In an example, a mixture of 60 per cent of coal with 35-40 per cent volatiles, 25 per cent of coal with 35 per cent volatiles and 15 per cent of semi-coke from a different coal and having 15 per cent volatiles has a total moisture content of 2 per cent and comprises 52 per cent of particles 0-.5 mm. and 6 per cent above 3 mm. After coking for 15 hours 10 minutes in an oven with a bottom temperature of 1300‹ C., 77 per cent of the product is of sizes above 40 mm., and the density of the dry coke, 60 per cent screened, is 25 1b. per cubic foot.
Patent GB-315046-A (GB)
Title: Improvements in games racquets
IPC: A63B49/00
Filed: 1928-05-11
Abstract: 315,046. Claremont, C. A. May 11. 1928. Rackets.-The rim of a games racket consists of one or more flat members which may be spaced apart by suitable distance pieces and a further flat member on each side of these members and likewise spaced therefrom by suitable distance pieces. The inner members a, which may be of spring steel, are spaced apart by flat distance pieces c round which the strings f of the racket may be passed. The two outer members b, which may be of the alloy known under the Trade Mark " Duralumin," are spaced from the inner members a by distance pieces d, and the whole structure is secured by rivets e. Either set of distance pieces may be semi-circular, annular or rectangular, and the distance pieces d may also be S- or V-shaped. When the rim proper consists of only one member a, the stringing is secured thereto by passing it round projecting studs on the surface of the member or through holes in the same. The rivets e may be arranged so as not to be in contact with the distance pieces.
Patent GB-436973-A (GB)
Title: Improvements in or relating to heddles for looms
IPC: D03C9/02
Filed: 1934-05-09
Abstract: 436,973. Loom healds and reeds. TAYLOR, Ltd., L. C., 112, Wellington Street, Leicester, JONES TEXTILATIES, Ltd., and JONES, E., Hart Street, Blackburn. May 9, 1934, No. 14036. [Classes 142 (i) and 142 (iii)] A heald frame applicable also as a beating-up reed for use in educational looms has its sides 1 formed from slats 2 between which are held the ends of the wire healds 5 spaced by turns 3 of wire or by springs and secured by dipping the sides in solder. The healds 5, each formed by a pair of wires soldered together and provided with an eyelet 6, are twisted about their ends to turn their eyelets sideways, as shown.
Patent GB-747936-A (GB)
Title: A contact rectifier with commutating reactors in series with the contacts
IPC: H02M1/26
Filed: 1954-05-13
Abstract: 747,936. Rectifying. LICENTIA PATENTVERWALTUNGS GES. May 13,1954 [May 30, 1953], No. 14054/54. Class 38 (2). A mechanical contact rectifier has a fixed pair of contacts 3 connected through a switching choke 2 to each phase 1 of the supply transformer, which contact pair is periodically connected together by a bridge 5 which, through a two-way switch ' 6, also connects the contacts to the release coil 7 of a protective device or to a supervisory apparatus 8 fed from a transformer 9 connected across the switching choke. During normal operation the protective device will be in circuit, and the switch 6 will be moved to operate the supervisory device 8, which measures the duration of contact closure, at the will of the attendant, or automatically from time to time when the measurement is recorded. Thus adequate supervision is provided without undue interference with the protective system, which may be supplemented by an excess current release device not disconnected by operation of switch 6. Where each phase comprises two switches in series, the change-over switch may be connected to the conductor joining them.
Patent GB-723684-A (GB)
Title: Improvements in or relating to coil winding machines
IPC: H02K15/085
Filed: 1952-06-04
Abstract: 723,684. Winding dynamo-electric machines. STANDARD COIL PRODUCTS CO., Inc. June 4, 1952 [Oct. 10, 1951], No. 14116/52. Class 35. Wires are wound simultaneously into each of the slots of a stator by means of stationary needles carrying the wires into the slots while the stator alternately reciprocates and rotates to wind the wires over a pole-pitch. The stator 130, which in the form shown has twelve slots to carry a three-phase winding, is mounted in a reciprocating carriage 25 which is guided by rails 28 engaging slots 16 in the base-plate and is reciprocated by a crank 63 and a connecting- rod 65 having an adjustable degree of lost-motion provided by a slot 64. The bore of the stator is engaged by a pair of tubular members 150, 160 extending from either end towards the centre of the stator bore and having radial tongues extending into the slots. These members are mounted together with supporting plates 50 which carry the weight of the stator, on a pair of circular end plates 40, 41 supported for rotation by rollers 30, 31, 32 attached to the end-plates 26, 27 of the reciprocating carriage. Rotational oscillation is achieved by means of the alternate engagement of the driving gear 223 with wheels 222 and 225 due to the reciprocatory motion of the carriage. Wires 101 are fed into a hollow tube 100 and pass out through the hollow radial needles 131 into the stator. The alternate axial and turning motion of the stator winds the wires round the slots of 90 degree pitch, the tongues serving to provide winding space and guiding the end loops. The finished stator is removed by withdrawing the tubular member 160 and its supporting shaft 161 in an axial direction as shown.
Patent GB-123014-A (GB)
Title: Improvements relating to Aerial-fuse Bombs.
Inventor: HAYNES EDWARD FREDRICK
IPC: F42C15/295
Filed: 1918-08-31
Abstract: 123,014. Haynes, E. F. Aug. 31, 1918. Blades, vanes, and the like.-Relates to aerial bombs adapted to be armed by wind vanes carried by a nose cover screwing on the end of the firing-pin, and consists in a method of securing the vanes to the cover. Each vane 4 is stepped at its inner end to form a short broad tongue 6 which is formed with two or more projections 7. The tongue and projections are inserted through an inclined slot 8 in the nose cover 1, and the projections 7 are headed over.
Patent GB-514706-A (GB)
Title: Improvements in and relating to domestic refrigerator construction
IPC: F25D23/06
Filed: 1938-05-13
Abstract: 514,706. Refrigerators. MURPHY RADIO, Ltd., and WALTERS, C. R. May 13, 1938, No. 14328. [Class 29] Cabinets having a sheet metal outer casing and a spaced sheet metal liner or chamber 1 are rendered rigid by the use of angle bars 7 or angle sheets at the horizontal corners of the liner, with bent ends 8 attached to the front flange 2 of the liner and to the casing back 5. The sides 3 of the cabinet have their edges bent inwardly to form shallow trays while the top 4 is in the form of an inverted tray, bolted to the liner. The back and bottom are formed by a plain sheet of metal 5 bent at right angles or may be in separate parts. The space between the chamber and casing is filled with exploded mica or other insulating material. The flange 2 on the chamber may be replaced by L- or channel-section bars to which the bars 7 and the casing may be attached, the structure being finally stiffened by sliding in the chamber 1. A moulded synthetic resin strip forms a finish around the front edge of the chamber.
Patent GB-1243327-A (GB)
Title: Process for the preparation of piperidine
IPC: C07D295/027
Filed: 1970-03-24
Abstract: 1,243,327. Piperidine. STAMICARBON N.V. 24 March, 1970 [29 March, 1969], No. 14339/70. Heading C2C. Piperidine is prepared by hydrogenating 4-cyanobutyraldehyde in the presence of a hydrogenation catalyst and ammonia. Some 1,5-diaminopentane is also obtained during the course of the reaction.
Patent GB-1455944-A (GB)
Title: Data communication system
IPC: G06F13/12
Filed: 1974-04-01
Abstract: 1455944 Data transmission; master and slave systems INTERNATIONAL BUSINESS MACHINES CORP 1 April 1974 [18 April 1973] 14373/74 Heading H4P In a system comprising a transmitter e.g. central processing unit CPU working to one or more peripheral units operating on cyclic programmes on demand from the CPU which should not be interrupted, and which peripheral unit(s) supply a busy signal while the peripheral is occupied, an adaptor is interposed between transmitter and each receiver which in response to the busy signal and a second demand signal, blocks the second signal and passes a response signal back to the transmitter. On completion of an operation, the receiver produces a response signal which the adaptor passes to the transmitter. The adaptor may also produce a signal on coincidence of the busy signal and the second signal by means of a latch unit which may be unlatched by the interruption of the further data signal. In Fig. 1, CPU 110 is coupled to a number of peripheral devices e.g. 140 which may be controlled by micro processing unit MPU 150 through an adaptor 160 and channel units 120 which issue and receive signals to and from communication channels. Since MPU 150 controls 140 sequentially, it may be performing a cycle when 120 demands a response within a determined time. To avoid interruption of the cycle, also to satisfy the demand, adaptor 160 senses a signal on line 175 indicating that MPU is occupied hence signals on 176 are inhibited; meanwhile a response is made on lines 133, 134 to the transmitter. A detailed arrangement is described in relation to Fig. 2 (not shown) with further reference to IBM "OEMI" Manual and Specification 1,415,567.