baber/WOPTO huggingface dataset:
Patent GB-991804-A (GB)
Title: New derivatives of cyclopentanophenanthrene and processes for their preparation
IPC: C12P33/00
Filed: 1962-06-13
Abstract: The invention comprises steroids of the general formula <FORM:0991804/C2/1> wherein R represents an alkyl group containing from 1 to 4 carbon atoms, R1 represents hydrogen or the acyl residue of a carboxylic acid containing from 1 to 12 carbon atoms, R11 represents hydrogen or an alkyl group containing from 1 to 4 carbon atoms and Z represents hydrogen, a keto group or an a - or b -hydroxy group which may be esterified with a mono- or di-carboxylic aliphatic acid containing from 1 to 12 carbon atoms, or with phenoxy-acetic, aminoacetic, b -chloropropionic, b -cyclopentylpropionic or benzoic acid; the preparation thereof by halogenating steroids of the general formula <FORM:0991804/C2/2> wherein R, R1, R11 and Z have the above significance, at the 2-position with a halogen, N-halogenoimide, or hypohalogenite, removing one molecule of hydrogen chloride from the 4,5-position of the resulting 2-halogeno-4,5-dichloro-steroid by means of an anionic resin in a suitable solvent or a tertiary nitrogen base at a temperature lower than 50 DEG  C., and a second molecule of hydrogen halide being then removed from the 1,2-position of the resulting 2-halo-4-chloro-steroid by means of a tertiary nitrogen base or lithium chloride in dimethylformamide at a temperature from 50 DEG  to 180 DEG  C., or by dehydrohalogenating at the 1,2- and 4,5-positions simultaneously by means of a tertiary nitrogen base or lithium chloride in dimethylformamide at a temperature ranging from 50 DEG  to 180 DEG  C.; and the preparation thereof by dehydrogenating in the 1,2-position steroids of the general formula <FORM:0991804/C2/3> wherein R, R1, R11 and Z have the above significance, for example, by means of a microbiological process using the microorganisms Didymella lycopersici, Bacillus spaericus or Corynebacterium simplex or by means of selenium dioxide or selenious acid in amyl or t-butyl alcohol.  Specification 792,727 is referred to.
Patent GB-1208541-A (GB)
Title: Benzodiazepine derivatives and a process for the manufacture thereof
IPC: C07D243/24
Filed: 1969-05-05
Abstract: 1,208,541. Benzodiazepine derivatives. F. HOFFMANN-LA ROCHE & CO. A.G. 5 May, 1969 [7 May, 1968; 12 March, 1969], No. 22780/69. Heading C2C. Compounds of the general formula (R 1  = H, halogen, NO 2 , CF 3 ; R 2  = H, halogen, NO 2 ; R = C 1-7  haloalkanoyl, C 1-7  alkoxy-C 1-7  alkanoyl, aroyl, aryl-C 1-7  alkanoyl, monoacyl moiety of dibasic acid, acyl moiety of C 4-7  alkenoic acid, carbamate, sulphate or phosphate moiety, - CO - [C 1-6  alkylene] - NR 5 R 6 , -C m H 2m OH; H 5,6  = H, C 1-7  alkyl or -NR 5 R 6  = heterocyclic group containing at most one additional N or O atom; n, m = 2-7) and their salts are prepared by acylating or etherifying a compound of the formula optionally followed by reaction of a product in which R = haloalkanoyl with NHR 5 R 6  and/or salt formation. The above compounds are sedatives, and may be administered in the form of pharmaceutical preparations containing them in association with a carrier.
Patent GB-1311606-A (GB)
Title: Process for c8aromatic feed fractionation
IPC: C07C7/04
Filed: 1971-04-19
Abstract: 1311606 Separating C 8  aromatic hydrocarbons FLUOR CORP 19 April 1971 [23 March 1970] 22780/71 Addition to 1277457 Heading C5E Feedstocks comprising xylenes and ethylbenzene are separated into components by a process comprising: (a) pre-fractionating the feed and/or chemically depleting the feed of m-xylene to form a first C 8  aromatic feed stream relatively rich in ethylbenzene; (b) feeding this first stream into a multilevel fractionation zone into an intermediate tray ; (c) feeding a second C 8  aromatic stream relatively rich in o-xylene to a tray below the first feed tray; (d) separating an ethylbenzene overhead stream, a predeominantly o-xylene bottom stream and a xylene isomer sidestream from between the first and second feed trays. The xylene sidestream may be treated to remove p-xylene, passed to a conversion zone to isomerize m-xylene to other xylene isomers and returning the isomerization products to the fractionation zone as the second feed stream. The initial feedstock may be prefractionated to give an overhead stream for use as the first feed stream, and a bottom stream for use as the second feed stream.
Patent GB-718193-A (GB)
Title: Improvements relating to electric motor control systems
Inventor: DOLAN HARRY
IPC: H02P3/24
Filed: 1951-10-01
Abstract: 718,193. Control of A.C. motors. ENGLISH ELECTRIC CO., Ltd. Sept. 26, 1952 [Oct. 1, 1951], No. 22801/51. Class 38(3) A three phase induction motor 10 driving a mine hoist has one phase of its primary winding 10a connected during braking to a direct-current source 11, whilst the other primary phase windings are energized in accordance with the rotor current of the motor, and therefore its braking. torque, through current transformer 14, rectifier 12, and resistor 13. A liquid resistance speed regulator 15 is controlled from the driver's lever through a positional oil servomotor. A polarized relay 19 has contacts 19e connected in series with the operating coil of a valve 16b, which when open, offers no restriction to the flow of exhaust oil from the servomotor, so that the movement of the speed regulator is unimpeded. A winding 19a of the relay 19 is connected across resistor 13 to be energized in accordance with the braking torque, a limit switch 17 disconnecting, this winding when the winder approaches its end of travel. In addition, a relay winding 19b is energized through transformer 18 in accordance with the rate-of-change of braking torque, so that, when this torque increases, the windings 19a, 19b act in the same direction. Thus. if the braking torque and the rate-of-change of braking torque are together such as to cause operation or relay 19, the valve 16b becomes effective to reduce or prevent the movement of the speed regulator. The relay 19 has also a winding 19c, energized from a constant source 20 and opposing winding 19a, and a winding 19d which is connected through recifier 22 to a tachometer generator 23 driven by the motor 10. The winding 19d assists the winding 19a and at full speed of the winder, the combined effect of windings 19c, 19d is zero. As the speed of the winder decreases, the winding 19c overcomes the effect of the winding 19d and the maximum braking torque permitted by the relay 19 is accordingly increased. Specification 517,468 is referred to.
Patent GB-717588-A (GB)
Title: Improvements in and relating to the production of 2,6-xylenol
Inventor: KUNZ WERNER
Filed: 1951-10-01
Abstract: 2 : 6-Xylenol is obtained by reacting orthocresol and methanol in the vapour phase and at elevated temperature in the presence of a metal oxide having a dehydrating action.  The reaction temperature may be 300-450 DEG  C. and preferably 350-400 DEG  C. whilst pressures up to 30 atmospheres gauge are satisfactory, the preferred pressure being 15-25 atmospheres gauge.  Elevated pressure may be maintained by the addition to the reaction space of an inert gas at a suitable pressure.  Specified metal oxides are the oxides of aluminium, thorium, zirconium, zinc, iron, manganese, magnesium, calcium and barium.  It is preferred to use activated alumina which is diluted with an inert heat-resisting solid such as fragments or chips of pumic or silica.  The molar ratio of methanol to ortho-cresol may be 3 : 1 but is preferably about 1.5 : 1.  In examples (1) a mixture of methanol and ortho-cresol (molar ratio 1.5 : 1) is heated to 350 DEG C. and the vapour injected into a vessel containing activated alumina mixed with silica chips, the reaction pressure being maintained at 15 atmospheres gauge with nitrogen whilst the liquid mixture is fed at 5 volumes per volume of contacting agent.  The powder is treated with caustic soda solution, the insoluble oil separated, and the mixture then sprung with hydrochloric acid to give phenols which are dried by simple distillation acid then fractionated to yield 2,6-xylenol containing small quantities of meta- and para-cresols; (2) as in (1) except that the temperature is 400 DEG  C. and the pressure is 25 atmospheres gauge; (3) as in (1) except that 10 volumes of liquid mixture are used per volume of contacting agent.
Patent GB-865434-A (GB)
Title: Improvements in guns for projecting grinding or polishing material in a stream or spray
IPC: B05B1/00
Filed: 1959-07-03
Abstract: 865,434. Blasting. ASHWORTH, N. I. Sept. 21, 1959 [July 3, 1959], No. 22860/69. Class 60. A gun for projecting grinding or polishing material in a stream or spray has a venturi discharge nozzle 3, a passage 2 co-axial with the nozzle and a passage 7 the axis of which makes an acute angle with the axis of the passage 2, the axes of the passages intersecting behind the passage through the nozzle. The nozzle is detachable. A mixture of abrasive and water is fed to the passage 2 under pressure, e.g. 60 lbs./sq. in. Air or other gas is fed to the passage 7 under pressure, e.g. 80-100 lbs./sq. in. A number of passages 7 may be arranged round the gun body. The gun body and nozzle may be of abrasive-resistant steel ; alternatively the passage 2 and the nozzle bore may have rubber or other abrasive-resistant linings 8, 9 which may be replaceable.
Patent GB-1436894-A (GB)
Title: High voltage insulating compostiion
IPC: C08K5/00
Filed: 1973-05-14
Abstract: 1436894 High voltage insulating compositions NATIONAL DISTILLERS & CHEMICAL CORP 14 May 1973 [23 May 1972] 22864/73 Heading C3P High voltage insulating compositions comprise (1) unfilled crosslinked low density polyethylene or ethylene/vinyl acetate copolymer and an antioxidant mixture comprising (2) a hindered phenolic antioxidant and (3) a zinc dialkyl dithiophosphate. The phenolic antioxidant may be a mono-, di- or trialkylphenol with at least one orthosubstitutent, particularly 2,6 - dioctadecyl - p - cresol, and alkylidene or thio bisphenol, 1,3,5-trimethyl-2,4,6-tris- (3,5 - di - t - butyl - 4 - hydroxybenzyl)benzene, pentaerythritol tetra(3,5 - di - t - butyl - 4- hydroxyphenylpropionate) or 3 : 1 3-methyl- 6 - t - butylphenol/crotonaldehyde condensates. Examples describe compositions comprising antioxidant mixtures of the invention and low density polyethylene crosslinked with dicumyl peroxide or ethylene/vinyl acetate copolymer crosslinked with dicumyl peroxide or 1,3-bis- (t-butylperoxyisopropyl)benzene.
Patent GB-1487864-A (GB)
Title: Stabilizing magnetic bubble domains
IPC: H01F10/06
Filed: 1975-05-23
Abstract: 1487864 Magnetic bubble devices INTERNATIONAL BUSINESS MACHINES CORP 23 May 1975 [25 Oct 1974] 22914/75 Heading H3B Wall-encoded magnetic bubbles, particularly those having either two or no Bloch lines in the domain wall as in Specification 1,487,863, are stabilized by the effect of an exchangecoupled magnetic layer subject to an in-plane magnetic field of magnitude sufficient to maintain domain coding when the domains are moved. Bubbles having two Bloch lines in the wall are designated state S = 0 and those with no lines S = 1. When S = 0 bubbles are moved at a high enough speed the wall encoding readily reverts to S = 1, with subsequent loss of data. The exchange-coupled layer increases the energy barrier EB2 of the S = 0 bubbles so preventing the reversion. The field Hx generally lies bebetween 5% and 25% of the saturation magnetization and varies with bubble size, e.g. 15- 40 Oe for 5 Á bubbles in a YEuGaFe garnet and 40-110 Oe for 1 α bubbles in an EuThGaFe garnet. The exchange coupled layer is ion-implanted, or is an FeNi or garnet layer and in practice the in-plane field is applied to both the layer and the bubble-supporting medium.
Patent GB-406587-A (GB)
Title: Riding saddle frame
IPC: B68C1/02
Filed: 1933-08-17
Abstract: 406,587. Saddles. KNETSCH, G., 162, Hermannstrasse, Neuk÷lln, Berlin. Aug. 17, 1933, No. 22974. [Class 62.] A riding saddle frame, of which an underneath view is shown, comprises side parts 1 of plywood connected at the front and rear and a central part 2 made up of fibre or plywood strips or plates flat at the seat point and curving upwardly towards the. rear. The side parts are arranged so that a hollow space is formed below the central part to receive the animal's spine. The side parts are detachably connected at the front by a chromium-nickel-steel link 4 disposed in a groove 4.
Patent GB-890661-A (GB)
Title: Protective device for nuclear reactors
Inventor: GREESON CHARLES THEODORE
IPC: G21C7/12
Filed: 1959-07-03
Abstract: 890,661. Nuclear reactors. REYROLLE & CO. Ltd., A. Sept. 30, 1960 [July 3, 1959]. No. 23015/59. Class 39(4) A temperature-responsive protective device for a nuclear reactor comprises a permanent magnet whose poles are shunted by a magnetic shunt made of ferromagnetic material whose Curie point coincides with the temperature at which the device is required to operate, and automatic means responsive to the change in magnetic flux in the shunt when heated above its Curie point for causing the shut-down or partial shut-down of the reactor to bring about a temperature reduction. In one arrangement, Fig. 2 (not shown), the shunt is held against the poles by magnetic attraction and has -a weight suspended from it. The reactor coolant passes over the shunt so that when the temperature of the coolant rises above the Curie point of the shunt the magnetic attraction is reduced and the weight is allowed to fall and trip a latch which releases neutron absorbent balls into the reactor. In Fig. 3 the poles 22 of the permanent magnet are normally shunted by a bridge comprising thin vertical plates 32, of nickel-iron or other magnetic material having a suitable Curie point, clamp at either end between mild steel or iron plates and spacers forming extensions 33 of the poles. A hinged armature 34 is normally held in the position shown by a spring 35, and by means of a latch 34a retains a hook 36 encircled by a ring 38 from which a weight is suspended. When the plates 32 are heated by the reactor coolant above their Curie point the magnetic flux of the permanent magnet is diverted through armature 34 which moves upward, releases the hook 36, and thus allows the suspended weight to fall and trip a latch which releases neutron absorbent balls into the reactor.
Patent GB-607217-A (GB)
Title: Apparatus for instruction in night navigation
IPC: G09B9/16
Filed: 1945-09-07
Abstract: 607,217. Training pilots. WOOD, C. H. Sept. 7, 1945, No. 23113. Drawings to Specification. [Class 4] [Also in Groups XX and XXXII] Apparatus for instruction in night navigation of vehicles, e.g. aircraft, comprises an amber and a blue filter, one (the pupil's) being interposed only in the pupil's line of vision and the other being in both the pupil's and instructor's lines of vision, the density of the second filter being such as not to restrict unduly the instructor's visibility outside the vehicle. The pupil's filter may be fixed to the vehicle or mounted in goggles and the other filter is fixed to the windscreen or may slide or pivot thereover.
Patent GB-897422-A (GB)
Title: Improvements in or relating to fusible connectors
Inventor: FELDHUSEN IGOR VLADIMIR
IPC: H01R4/02
Filed: 1960-07-01
Abstract: 897,422. Thermal switches. STANDARD TELEPHONES & CABLES Ltd. July 1, 1960, No. 23115/60. Class 38 (5). A fusible connector comprises within an insulating  enclosure, two contacts and a quantity of low-melting point alloy, a heated winding surrounding the enclosure so that the alloy when melted will flow by gravity to make or break a connection between the contacts. In one form, Fig. 1, the contacts are in the form of cups 5, 6 disposed in a tube 1 with the external heater 2, the alloy being shown at 7. The contacts may be in the form of wires, Fig. 2 (not shown), and there may be two contacts at each end of the tube so as to form a change-over switch, Fig. 4 (not shown). Another change-over switch, Fig. 5, comprises contacts 31, 32, 33 and the alloy 34 is sufficient to bridge any two of these, depending upon the angular position of the connector. Specification 897,423 is referred to.
Patent GB-1476889-A (GB)
Title: Head of golf club
IPC: A63B53/04
Filed: 1975-05-27
Abstract: 1476889 Golf club heads K MATUKI 27 May 1975 [15 March 1975] 23131/75 Heading A6D [Also in Division C7] A "wood" golf club head comprises a hollow alloy main body 1 having an opening at its bottom, said opening being closed by an alloy sole 2 attached by screws to said main body 1, and the hollow space defined by said main body and sole filled with a foamed plastics material, e.g. urethane plastics. The body 1 and sole 2 are preferably die cast from an aluminium alloy of stated composition. The striking face 3 which preferably is coated with an anodic oxidised film of aluminium oxide is of greater wall thickness than the rest of the body 1 and is strengthened by a reinforcing rib 5 the bottom edge of which extends rearwardly and upwardly from said face 3. The sole 2 has a central annular or ring-shaped projection 14 in which are placed a number of heavy metal disks 20 and held in place by adhesive 21.
Patent GB-287397-A (GB)
Title: Improvements in or relating to hand tools for bending sheet metal or the like
IPC: B21D5/16
Filed: 1927-09-02
Abstract: 287,397. Powell, A. D., and Bradbury & Sons, Ltd., J. Sept.. 2, 1927. Angular bending. -A hand tool for bending or straightening the edges of mudguards, panels of motor cars and other sheet metal or the like consists of a bar A with an L-shaped end A' having an adjustable block B so as to vary the contact points. The block, which may have a resilient facing C, is adjusted by a bolt B and slot A<3>, a pin B<2> being provided to prevent rotation of the block. The end of the member A<1> is curled round at A<2> to engage over the bead on the mudguard &c. when setting the edge of the mudguard outwards, as shown in Fig. 2. The other end of the bar may be U-shaped, with the outer end bent over at D' to prevent a rounded surface to the work when setting the edge of the mudguard inwards &c. as shown in Fig. 3.
Patent GB-1155255-A (GB)
Title: Substituted Benzoic Acid Lactones having Estrogenic Properties
IPC: A23K1/16
Filed: 1967-05-18
Abstract: 1,155,255. Animal growth promoters. COMMERCIAL SOLVENTS CORP. 18 May, 1967 [29 June, 1966; 3 March, 1967], No. 23154/67. Heading A5B. [Also in Division C2] Pharmaceutical compositions, suitable for parenteral administration and animal feed stuffs contain as an active ingredient a novel substituted benzoic acid derivative of the formula: wherein A is CH 2 -CH 2 , or CH=CH, B is one R is H, benzyl or C 1-8  alkyl. The animal feed stuffs may also contain, if desired other active ingredients such as vitamins and antibiotics. The above compositions and feed stuffs have estrogenic activity or aid in increasing the rate of growth in meat-producing animals. Reference has been directed by the Comptroller to Specification 951,349.
Patent GB-198944-A (GB)
Title: Improvements in valves for internal combustion engines
IPC: F01L1/30
Filed: 1922-08-28
Abstract: 198,944. Norton Motors, Ltd., Norton, J. L., and Shelley, R. T. Aug. 28, 1922. No Patent granted (Sealing fee not paid). Actuating - mechanism; spindles. - The valve stem of an internal-combustion engine is formed with an enlarged end b slotted at o to receive the valve lever d, and works in a guide f which is formed in two halves so that it may be fitted around the stem after the end b has been passed through the bore g. The guide f is secured by a nut k and has a shoulder h bearing against the valve casing. Reference has been directed by the Comp. troller to Specification 129,015, [Class 7 (ii), Internal-combustion engines, Arrangement &c. of].
Patent GB-1285851-A (GB)
Title: A method and conveyor system for transporting glass microscope slides
IPC: B65G59/06
Filed: 1971-04-19
Abstract: 1285851 Endless conveyers; feeding sheets PROPPER MFG CO Inc 19 April 1971 [1 Dec 1970] 23256/71 Headings B8A and B8R To aid the withdrawal of microscope slides 12 from a stack one at a time, a bin 14 containing the stack is submerged in a detergent solution 26. The lowermost slide rests on a ledge (30, Figs. 3, 4, not shown) in the bin but is engaged by a conveyer belt 18 having transverse projections 18a. The next lowest slide is normally prevented from passing out of the bin by the forward wall 14a thereof. If these two slides tend to stick together the belt 18 is deflected and the slides are completely separated by the next belt projection 18a. Section 14c serves to support the bin-conveyer unit which is preferably pivoted about the upper end of the conveyer. A number of the units may be arranged side-by-side in tank 28.
Patent GB-1152262-A (GB)
Title: Improvements in or relating to Ships' Accomodation Ladders
Inventor: NOULIAN GLAUCO
IPC: B63B27/14
Filed: 1966-05-25
Abstract: 1,152,262. Ship's ladders. CANTIERI NAVALI ITALIANI (ANSALDO C.R.D.A. - NAVALMECCANICA) ITALCANTIERI S.p.A. 25 May, 1966, No. 23267]66. Heading A6L. A ship's ladder comprises upper and lower flights of steps 3, 10 connected by an intermediate platform 1. The steps 10 are pivoted to a plate 8 which by means of a strap 11 and bearing members 12 is rotatable about the platform 1. The lower end of the upper flight 3 and the upper end of the flight 10 are pivoted respectively to the platform 1 and the plate 8.
Patent GB-1524447-A (GB)
Title: Compositions containing phytosterols
IPC: C09K23/38
Filed: 1976-06-04
Abstract: 1524447 Phytosterol compositions GENERAL MILLS CHEMICALS INC 4 June 1976 [6 June 1975] 23287/76 Heading A5B [Also in Division C5] Compositions comprising a blend of a phytosterol (i.e. a sterol obtained from a plant source, such as stigmasterol, campesterol, sitosterol and/or brassicasterol or the naturally occurring esters thereof) and a free saturated fatty acid and/or fatty alcohol having an even numbered C 12-18  carbon chain (e.g. lauric, myristic, palmitic or stearic acid, lauryl, myristyl, cetyl or stearyl alcohol), the said blend being substantially free of triglyceride, are prepared by heating the fatty acid and/or fatty alcohol to a molten condition and dispersing the phytosterol, preferably also heated to melting, therein. The compositions may be used in cosmetic compositions e.g. as emulsions with triethanolamine or liquid paraffin, or as shampoos comprising e.g. aqueous sodium lauryl sulphate, triethanolamine lauryl sulphate and lauric and myrisfic diethanolamides.
Patent GB-531160-A (GB)
Title: Improved thumb-keys for the boehm flute
IPC: G10D7/02
Filed: 1939-08-12
Abstract: 531,160. Flutes. CARNE, C. H. Aug. 12, 1939, No. 23288. [Class 88 (ii)] The pad end 2 of the B # key of a Boehm flute has a longitudinal extension 1 on which the thumb can rest, the B #  lever having a su ned inwardly towards the said extension. The usual thumb key on the B #  lever is omitted. The lower edge of the surface 3 lies just below the surface of the extension 1 when the key 2 is depressed but normally the upper edge of the surface 3 and the surface of the extension 1 are at the same level.