baber/WOPTO huggingface dataset:
Patent GB-1440094-A (GB)
Title: Simaroubolide
IPC: C07D493/10
Filed: 1973-08-03
Abstract: 1440094 Simaroubolides RESEARCH CORP 3 Aug 1973 36986/73 Heading C2C [Also in Division A5] The invention comprises a method of isolating an anti-leukemically active fraction from Brucea antidysenterica comprising the sequential steps of:(a)extracting Brucea antidysenterica with akanol; (b) partitioning the alkanolic extract between CHCl 3  and water; (c) removing the solvent from the CHCl 3  fraction and partitioning the residue of the fraction between 90% aq. CH 3 OH and petroleum ether; (d) separating said 90% aq. CH 3 OH fraction and adding thereto sufficient water to produce a 80% aq. CH 3 OH solution and extracting same with COl 4 ; (e) further diluting said 80% aq. CH 3 OH solution with sufficient water to provide a 60% aq. CH 3 OH solution and extracting the same with CHCl 3 ; (f) removing the CHCl 3  from the CHC1 3  extract, chromatographing the residue on silica gel and eluting the gel firstly with CHCl 3  containing up to 0.5% CH 3 OH ; and (g) eluting secondly with 1% CH 3 OH in CHCl 3  and collecting at least the first of the fractions which contain any compound which upon thin layer chromatography gives an immediate dark stain with FeCl 3,  the fraction(s) thus isolated being the anti-leukemically active fraction(s). The invention also comprises bruceantin, its triacetate and a simaroubolide having the following physical characteristics: [α]<SP>24</SP> D  -14À5‹   7À95, 8À65, 9À47 Á; mass spectrum m/c 457, 546, 438, 430, 402, 151, 125, 110 and 091; nmr (CDCl 3 )#6.28, 7À90, 8À02, 8À19, 8À50, 8À63 (methyl singlets). These compounds may be obtained by the above process with the triacetate being obtained by acetylating bruceantin with acetic anhydride. In the above, process the solvent may be removed from the fractions obtained in step (g) to give a concentrate containing bruceantin which may be chromatographed on silica gel which is eluted with a 30% ether/70% benzene mixture from which the first and second fractions containing bruceantin and also, upon thin layer chromatography, giving an immediate dark stain with FeCI 3  are collected. The solvent may be removed from the second of said fractions to give substantially pure bruceantin. Other compounds which may be isolated from the anti-leukemically active fractions, are bruceantarin, bruceine B, isobruceine B and dihydrobruceantin.
Patent GB-1437429-A (GB)
Title: Generation of hadamard transforms of electrical signals
IPC: G06F17/14
Filed: 1973-08-03
Abstract: 1437429 Data transmission; coding for facsimile systems BRITISH BROADCASTING CORP 7 June 1974 [3 Aug 1973] 37010/73 Addition to 1366085 Heading H4P In an arrangement as disclosed in parent Specification No. 1,366,085 in which a method and apparatus for generating a Hadamard transform of a series of 2<SP>N</SP> elements of an electrical signal is claimed and disclosed which includes N serial connected sections of order i where i takes once each of the values 1-N in any order, each section including first means for delaying the input by 2<SP>i-1</SP> elements and means for both adding and subtracting the delayed and undelayed signals, the apparatus is modified by halving a number of delay elements required. In the former apparatus only half the information stored is relevant to the transform the other half being rejected, hence in the present apparatus, by incorporating switching means, only relevant information is stored. The figure shows one of several serial stages for digital signals where the delay is conveniently a clocked 8 stage register connected at input and output to parts 12, 20 of a linked switch receiving on other inputs sum and difference of input signal 10 and delayed signals from 18. While the output of subtractor 16 is working its way through register 18, outputs of adder 14 are being applied through switch part 20 to output V. When the output of subtractor 16 reaches output of register 18, the switch 12, 20 reverses to apply signals emerging from register 18 to output V and incoming signals 10 are stepped through register 18. Switch 12, 20 then reverts for a further period of eight elements et seq. The improved arrangement uses all the register capacity all the time hence less apparatus is employed in the parent Specification. Different types of transforms may be obtained (a) by transposing the inputs of subtractor 16, (b) transposing 14 and 16 also (a) + (b) combined. These arrangements are particularly useful for asymmetrical transforms. Like the parent Specification, analogue signals may be processed by replacing the shift register by an appropriate clocked storage device, e.g. of capacitor type, together with analogue sum and difference circuits.
Patent GB-370415-A (GB)
IPC: G07F17/36
Abstract: 370,415. Coin-freed amusement apparatus. ALDERSON, E. L., 1, Castle Street, Southport, Lancashire. Jan. 1, 1931, No. 5. [Class 27.] A coin - freed amusement apparatus comprises an imitation thermometer A having a bulb B to be grasped and purporting to indicate on a scale of legends by the level of fluid in the tube A the armatory condition of the person using the apparatus, a pump C actuated by an electric motor M causing the fluid to rise in the tube A after the insertion of a coin. A card d is also delivered. The pump plunger C<2> is depressed against the action of a spring D<1> by a rod E and link D, the rod E being actuated by a toothed cam F which is driven through worm gearing by the motor M. The fluid passes by a tube C<1> to the tube A through a two-way cock on the end of which is a pinion B<4> engaging a rack B3. The rack is moved, when the bulb B is grasped, by a member B<1> pivoted at B2. If the bulb is not grasped, the cock is not turned and the fluid is diverted to a concealed tube A<1>. The member B<1> may be in the shape of a guard conforming to the shape of the bulb. In a modification, the byepass may be dispensed with and the member B<1> caused to operate a switch in the circuit of the motor. Coin action, electric-connection.-The coin inserted in a shoot H forms an electric connection between the shoot and a lever H<1>, H<2>, the coin resting on the bent end of the arm H<2>. The lever and shoot are in the circuit of the motor M. The arms H<1> rests on contact springs N<1> and, when the rod E is raised, a pin E<1> raises the spring N<1> to tilt the lever and allow the coin to drop. Delivery of articles stored in piles.-The bottom card of a pile in a container P is ejected by a slide which is actuated by a linkage O, K, Kl, J, the arm J being operated by pins F<1> on the face of the cams F.
Patent GB-1463750-A (GB)
Title: Friction-drive electricity generating method and equipment enabling electricity to be generated utilising the driving wheel of a motor vehicle
IPC: B60K25/08
Filed: 1974-08-23
Abstract: 1463750 Driving external machines T WATANABE 23 Aug 1974 [1 March 1974 16 May 1974] 37110/74 Heading B7H [Also in Division H2] In a method of generating electricity, a base plate 12 carrying a jack 54/38/40 is appropriately located relative to a driving wheel 102 of a motor vehicle 100, the jack is operated to lift the wheel 102 clear of the ground, and a dynamo 70 mounted on the base plate 12 is displaced to bring a shaft 74 of the dynamo into frictional contact with the wheel 102 whereby to drive the dynamo 70 from the wheel 102. In the embodiment described, the dynamo 70 is supported on a shaft 78 journalled in a socket 16 and in a fastener (18, Fig. 1, not shown), fixed on the base-plate 12, and the dynamo is pivoted to bring the shaft 74 into engagement with the wheel 102, a turn-buckle 96 being tightened to obtain the desired contact pressure between the shaft and wheel. The base-plate 12 has a general U-shape (as in Fig. 1), and the dynamo 70 is removable from the base-plate. The shaft 74 may be coated with friction material.
Patent GB-1271509-A (GB)
Title: Improvements in or relating to amplifier arrangements
Inventor: PERKINS KENNETH GEORGE
IPC: H03F1/56
Filed: 1968-08-05
Abstract: 1,271,509. Amplifiers. PLESSEY CO. Ltd. 4 Aug., 1969 [5 Aug., 1968], No. 37267/68. Heading H3W. In a feedback amplifier the effective impedance presented by the feedback impedance R 2  to the output of the amplifier A is reduced by means of an impedance transforming networkas comprising an autotransformer T interposed between the output of the amplifier and the feedback impedance.
Patent GB-847817-A (GB)
Title: Hydroxy anthracenones and the preparation thereof
Inventor: STEPHENS CHARLES ROBERT JR
Filed: 1956-12-13
Abstract: The invention comprises 8, 9-dihydroxy-3, 4-dihydro-1 (2H) anthracenones and alkali metal salts thereof and a process for the preparation thereof which comprises contacting a 1, 8-dihydroxy-9 (10H)-anthracenone with hydrogen in the presence of a hydrogenation catalyst and in an aqueous alkali metal hydroxide solution and if desired acidifying the alkali metal salt thus obtained.  Catalysts mentioned include Raney nickel and noble metal hydrogenation catalysts, e.g. palladium on activated carbon.  Substituents which may be present in the products include alkyl, hydroxyl and carboxylic groups and products specified are 8, 9-dihydroxy-3, 4-dihydro-1 (2H)-anthracenone and the corresponding 10-methyl derivative, 8, 9, 10-trihydroxy-3, 4-dihydro 1 (2H) anthracenone, 8, 9-dihydroxy-3, 4-dihydro-1 (2H) anthracenone 6-carboxylic acid and a pentahydroxy, 3, 4-dihydro-1 (2H)-anthracenone.  Examples are furnished.  The products of the invention form complexes with polyvalent metals, e.g., copper, nickel, iron, cobalt, alkaline earth metals, e.g., calcium and magnesium.
Patent GB-321595-A (GB)
Title: Improvements in or connected with mudguards for perambulators and the like
IPC: B62B9/16
Filed: 1928-12-27
Abstract: 321,595. Wasdell, E. C. Dec. 27, 1928. Mudguards.-In mudguards for perambulators, toy motor-cars, &c. of the type in which the blade a is rigidly connected by stays c to a centre piece d detachably connected to the axle e or a frame member of the vehicle, a bridge piece g is pivoted at f to the centre piece d and is provided with a hole at its free end to engage a bolt h, which is carried by the centre piece d and by which the parts. are detachably clamped around the axle &c. e. The centre piece d comprises two complementary dished side plates d<2>, Fig. 2, each provided with a depending ear d<4> pierced to receive the pivot pin f for the bridge piece g, which is of U-shaped cross-section. The bolt h is fitted with a wing-nut h<2>, and is capable of partial rotation about a. rivet i. The ends of the stays c are connected to the centre piece d by means of rivets i<2> and packing-washers i<3>. Specification 167,977 is referred to.
Patent GB-1367022-A (GB)
Title: Electron beam deflection apparatus
IPC: H01J29/74
Filed: 1972-01-04
Abstract: 1367022 Cathode-ray tubes; travelling wave tubes TEKTRONIX Inc 4 Jan 1972 [24 Feb 1971] 38331/73 Divided out of 1367021 Heading H1D The disclosure is substantially identical to that of application (Specification 1,367,021) but the claims are directed to the provision of compensating plates (56, 58) which overlie the helices of a delay line type deflection system.
Patent GB-836942-A (GB)
Title: Chipwood made material of high compressive strength and a method of producing the same
IPC: C08L97/02
Filed: 1957-12-11
Abstract: A compression-resistant lightweight material comprises wood chips bonded together with a binding agent, the voids between the chips being filled with an expanded porous plastic.  The material may be produced by moulding together at elevated temperature a mixture of chips, binding agent and 0.5 to 25% by weight of the chips of a small-particled expandable, partially expanded or expanded plastic, e.g. a styrene polymer or copolymer, polyvinylchloride, polyvinyl carbazole, polyethylene, or an amino-aldehyde resin.  Preferred binding agents are aminoplasts and phenoplasts, e.g. carbamide resins, phenol-formaldehyde, and 5 to 20 kg. is used per 100 kg. wood chips.ALSO:A compression-resistant lightweight material comprises wood chips or other vegetable material such a coir, jute fibre, flax waste, or rice husks, bonded together with a binding agent, the voids between chips being filled with an expanded porous plastic. The material is produced by moulding at elevated temperature a mixture of chips, binding agent and 0,5 to 25% by weight of the chips of a small-particled expanable partially-expanded or expanded plastic, e.g. a styrene polymer or copolymer, polyvinyl chloride, polyvinyl carbazole, polyethylene, or an amino aldehyde resin.  Preferred binding agents are aminoplasts and phenoplasts, e.g. carbamide and phenol-formaldehyde resins, and 5 to 20 kg is used per 100 kg wood chips.
Patent GB-1309955-A (GB)
Title: Resinous composition
IPC: C09J125/00
Filed: 1970-08-10
Abstract: 1309955 Styrene copolymers GOODYEAR TIRE & RUBBER CO 10 Aug 1970 [5 Sept 1969] 38475/70 Heading C3P A copolymer of 10-50% styrene, 10-80% α-methyl styrene and 10-80% vinyl toluene and a vinyl toluene/styrene mol. ratio of 3 : 1 to 1 : 1 has a softening point of 70-130‹ C. and is produced by copolymerization, preferably in an inert diluent, in the presence of boron trifluoride, or an etherate thereof, aluminium chloride, ethyl aluminium dichloride or stannic chloride. The product is used as an additive for hot melt adhesives.
Patent GB-1116808-A (GB)
Title: Improvements in apparatus for damping the oscillating or pendulum-like movements of a pivotably suspended body
IPC: F16F15/023
Filed: 1965-09-09
Abstract: 1,116,808. Vibration dampers. R. BOSCH G.m.b.H. 9 Sept., 1965 [10 Sept., 1964], No. 38489/65. Heading F2S. [Also in Division G2]   A body mounted in a pendulum manner, e.g. a mirror 1 having on its front face three mirrors (2, 3, 4), Fig. 3, not shown, carries, on its rear face, a pin 5 which can rotate but which is axially immovable and which is adapted to be secured within a bush on a mounting device, a damping apparatus consisting of a closed tube 6 of constant interior cross-sectional area and of rectangular axial section being slightly more than half-filled with silicone oil 7 and mounted on the rear face of the mirror. The ratio of the mass of oil to the mass of the mirror is about 1 : 20. The mirror can be fitted, e.g. to the rim of a vehicle wheel to assist in measuring the angle of the associated axle.
Patent GB-835346-A (GB)
Title: Improvements in or relating to pit props consisting of several component parts
IPC: E21D15/502
Filed: 1957-12-12
Abstract: 835,346. Pit props. GERLACH, K., and GERLACH, H. Dec. 12, 1957 [Dec. 21, 1956], No. 38629/57. Class 20(2) [Also in Group XXII] In a method of making pit props consisting of several component members with one or more inner props held by a friction lock, the surfaces of the inner props, in particular at the points subject to the friction of the lock, are compressed and rendered more resistant by a plurality of hammer blows. The props may be of circular cross-section or may be shaped as shown in Fig. 3 and made up of two sections 1a and 1b welded together. A parallel walled blank may be tapered by the hammering operation.
Patent GB-1149569-A (GB)
Title: Capacitors and methods for their manufacture
Inventor: LUCAS MICHAEL STEPHEN PATRICK
IPC: H01G4/06
Filed: 1966-09-01
Abstract: 1,149,569. Capacitors. MINISTER OF TECHNOLOGY. 31 Aug., 1967 [1 Sept., 1966], No. 39007/66. Heading H1M. A capacitor comprises a pair of coplanar electrodes 1, 2 on a dielectric substrate 3, the electrodes having interdigitated projections 5, 6, 7 and 8, and a dielectric overlayer which fills the space 4 between the projections (Figs. 3, 4, not shown), the useful capacitance being derived from the proximity of the edges of the projections. The capacitance may be further increased by another parallel connected pair of electrodes on the overlayer (Fig. 5, not shown). The substrate and overlayer dielectric may be glass, ceramic, alumina, barium titanate, lead titanate zirconate or silicon monoxide and may be selected so that its change of dielectric constant with temperature compensates for its thermal expansion. To form the electrodes a single conductive layer of, e.g. tantalum may be applied and divided by a meandering slot by electron beam treatment or a masking and etching process. Alternatively the electrodes may be printed separately. The capacitance may be trimmed to a desired value by electron beam treatment, or anodizing, or etching.
Patent GB-1345666-A (GB)
Title: Preparation of polyamides
IPC: C08G69/48
Filed: 1972-08-24
Abstract: 1345666 Polylactam treatment SOC AQUITAINE-TOTAL ORGANICO OF TOUR AQUITAINE 24 Aug 1972 [25 Aug 1971] 39433/72 Heading C3R Polyamides prepared by anionic polymerization of a lactam in anhydrous medium with an alkaline catalyst, are treated by addition of a tertiary alcohol R 1 R 2 R 3 COH, where R 1 , R 2 , and R 3  are hydrocarbyl. The alcohol may be tertbutyl alcohol. The lactam may be capro-, dodeca-, or capryl-lactam. There maybe 0À05-2 moles alcohol per mole lactam. The alcohol may be added after polymerization, e.g. by mixing with the polyamide in molten or paste form. Use.-Fibres, films, sheets, moulded articles.
Patent GB-1004929-A (GB)
Title: Electrophotographic copying material
IPC: G03G5/06
Filed: 1963-10-07
Abstract: 1,004,929. Electro-photographic materials. KALLE A.G. Oct. 7, 1963 [Oct. 13, 1962], No. 39479/63. Heading H1K. [Also in Division G2] An electro-photographic material has an electrically conducting support bearing a photoconductive insulating layer containing one or more photo-conductive thiadiazoles conforming to the formula:- in which R 1  and R 2 , which may be the same or different, each represent an alkyl radical or a saturated carbocyclic or heterocyclic radical, or either R 1  or R 2  may represent hydrogen, and R 3  represents a substituted or unsubstituted aryl or heterocyclic radical. In specific compounds R 1  and R 2  are exemplified by hydrogen, and methyl, ethyl, n-propyl, n-butyl, isopentyl, cyclopentyl, and cyclohexyl groups, while R 3  is exemplified by an o-methyl-phenyl or a m-chlorophenyl group, by a phenyl, α- furyl, α-naphthyl, or a γ-pyridyl group, or by phenyl groups substituted in the p-position by ethylamino, diethylamino, ethylbutylamino, butylamino, dibutylamino, isopentylamino, or methoxy groups, chlorine, or bromine. In a general passage additional examples for R 1  and R 2  are iso-propyl, hexyl, 2 : 4-dimethylhexyl, and tetrahydrofurfuryl groups and piperazine or morpholine residues. Additional examples for R 3  are diphenylnaphthyl groups and residues of pyrene, phenanthrene, indene, anthracene, perylene, fluorine, thiophene, pyrrole, and indole. These (R 3 ) may be substituted by halogens, alkyl groups, alkoxy groups, caralkoxy groups and substituted or unsubstituted amino groups. The support materials mentioned are those commonly used. A list of suitable binders is given-use of a binder is optional. Spectral sensitivity, normally in the range between long-wave U.V. and short-wave visible light, may be modified by dyestuff sensitizers. Seven specific embodiments are given.
Patent GB-1485466-A (GB)
Title: Apparatus for manufacturing synthetic plastics tubing
IPC: B29C48/09
Filed: 1974-09-10
Abstract: 1485466 Extruding and corrugating plastics tubing WAVIN BV 10 Sept 1974 [11 Sept 1973] 39524/74 Heading B5A A polyvinyl chloride tube 5, is extruded from an annular die outlet 4, Fig. 1, and then transversely, annularly, or helically corrugated by being urged by internal air pressure against a surrounding moving cavity which is defined by the co-operation along a common straight path of a pair of moving endless chains 7, 8, of interconnected corrugating mould halves 7a, 8a, which move along different return paths. To prevent pinching of the extruded tube between the transverse surfaces of adjacent mould halves of each chain as they move around sprocket means 16, 17 into co-operation with the other chain at the upstream end of the straight path, the mould halves are delivered into the path with the transverse surfaces 22, 23, Fig. 2, of the adjacent moulds in abutment, by the sprocket means causing the upstream end of each mould half, Fig. 2, to move about a larger pitch circle R, than that R<SP>1</SP> of the downstream end. The abutment of the mould halves may be effected by alternate deeper and shallower recesses, provided either in different, or on the same sprocket as disclosed, and engaging respective larger and smaller diameter projections on the mould ports. The mould ports may be connected by an endless belt, but in the embodiment, the interconnection between the mould halves of each chain is effected by trailing and leading shafts 18, 19, Fig. 2, of each mould half which respectively engage the deeper and shallower recesses of a sprocket 20, the successive positions of a mould in each chain being shown by the numerals I-X, and IV<SP>1</SP> to X<SP>1</SP>. The shafts 18, 19, Fig. 5, are connected by strips 26, Fig. 5, which each respectively engage a shaft 18 without clearance, and a shaft 19 in slot 27 providing displacement to permit the required movement on to abutment. Upstream of the sprocket means, guides (29a), Fig. 4 (not shown), are provided to deliver the mould halves tangentially into the pitch circles. In the described embodiment, Fig. 1, the tube is extruded from a die head passage 4 defined between a mandrel 2, and a die 3 which projects at 3a downstream of the mandrel 2. The extruding tube 5 is urged against corrugating mould ribs and recesses 9b, 9a by compressed air admitted through a mandrel passage 6, and openings 13 of a mandrel extension 11 which is provided with a seal 12 retaining the air within the cavity. The plug 12 comprises alternate metal and rubber discs 14, 15, the discs 15 being substantially equal to the diameter of the mould recesses 9a, less the wall thicknesses of the tube 5. The process facilitates perforating of the corrugated tube, by avoiding pinches in the tube.
Patent GB-1318559-A (GB)
Title: Stabilisers for synthetic polymers
IPC: C07F7/10
Filed: 1970-08-17
Abstract: 1318559 Piperidine derivatives SANKYO CO Ltd 17 Aug 1970 [8 Jan 1970] 39588/70 Headings C2B C2C and C2P [Also in Division C3] 4-Amino-piperidine derivatives of formula where R 1  is H or acryl; R 2  is H, unsubstituted or substituted alkyl, aryl or aralkyl, cycloalkyl or 2,2,6,6-tetrarnethyl-4-piperidyl; n is 1, 2 or 3 and when n is 1 R 3  is H, acyl, alkoxy carbonyl, carbamoyl, thiocarbamoyl, N-substituted carbamoyl or N-substituted thiocarbamoyl or a monovalent non-carboxylic oxo acid residue or with R 2  form an orthophthaloyl group; when n is 2 R 3  is diacyl, N-substituted dicarbamoyl, N-substituted bisthiocarbamoyl, carbonyl or a divalent non-carboxylic oxo acid residue; and when n is 3 R 3  is triacyl, N-substituted tricarbamoyl, N-substituted tristhiocarbamoyl or a trivalent non-carboxylic oxo acid residue; may be prepared by reacting N-R 2  2,2,6,6-tetramethyl piperidine with an acid anhydride, ester, or halide, urea, thiourea or isocyanate. Many compounds are specified and reaction schemes for the preparation thereof are given. In Example 1 4 - (3 - phenylureido) - 2,2,6,6- tetramethylpiperidine is prepared by reacting 4 - amino - 2,2,6,6 - tetramethylpiperidine with phenyl isocyanate. Tris-(2,2,6,6-tetramethyl-4- piperidylamino) phosphine, tris-(2,26,6-tetramethyl - 4 - piperidylamino) phosphine oxide and tris (2,2,6,6 - tetramethyl - 4 - piperidylamino) boron are among other derivatives listed.