baber/WOPTO huggingface dataset:
Patent GB-682719-A (GB)
Title: Improvements in or relating to variable-speed power transmission
IPC: F16H37/08
Filed: 1950-07-25
Abstract: 682,719. Variable-speed gear. TROFIMOV, L. A. July 25, 1950, No. 18543/50. Class 80 (ii). A motor-driven variable-gear unit, providing many alternative assembly positions, includes a variably-controlled three-element bevel differential, of which the spider 47, one side-wheel 43 and input shaft 24 are carried as an assembly in a housing-section 4, whilst the other sidewheel 70 is similarly carried in another housing-section 6, which, when accurately positioned on and bolted to the first housing-section 4, completes the differential gear. As shown, the shaft of a motor 1 bolted to the other side of the housing-section 4, carries a pinion 34 driving a wheel 31 on the gear input shaft 24, to which is fast the differential spider 47, and the freely mounted control side-wheel 43 is variably driven from the input shaft 24 through positive-meshing expanding-pulley and chain gear 11, 12, a parallel shaft 25, and chain or toothed-idler gearing 45. A hand-wheel 9 on an oppositelythreaded shaft, with indicator 10, simultaneously adjusts both pulleys 11, 12 over a ratiorange between 2 to 1 and 1 to 2, providing an overall range of 1 to 1 to 1 to 1¢ at the output side-wheel 70, which latter is mounted on a shaft 69 driving a final driven shaft 8 through reduction or multiplier gearing on parallel shafts 69, 72, 8. The following alternative assemblies can be realised. The expanding-pulley shafts 24, 25 are identical and equally spaced from the motor axis, so that the motor-meshing wheel 31 may be mounted on the shaft 25 instead of 24, whereupon the side-wheel 43 becomes the input member and the spider 47 the control member of the train, giving a ratio range of 1 to 0, to 1 to 3. The output gear shafts 69, 72, 8 are similarly equispaced in bearings in the end wall and a parallel web 54 and have separate cover-plates 78 so that the final output shaft 8 may occupy any of the three positions giving direct drive, single or double stage gearing, the central position being aligned with the motor shaft, the outer ones with the pulley shafts 24, 25. In all cases all the elements of the differential gear always rotate in the same direction.
Patent GB-809204-A (GB)
Title: New printing process for wool
Inventor: SIMONS JOSEPH
IPC: D06P3/10
Filed: 1956-06-15
Abstract: Textile materials containing wool are printed with an aqueous paste containing a water-insoluble colouring matter (or dyestuff intermediate) containing a mono- or di-halogeno-1 : 3 : 5-triazin-2-ylamino group and then steaming.  The dyestuff may be a nitro-, azo- or anthraquinone-dyestuff which is free from solubilizing groups.  In the case of a dyestuff intermediate, it may be a diazotizable amine or a coupling component which can be converted on the fibre into a dyestuff free from solubilizing groups. The paste may also contain thickeners such as methyl cellulose, starch, locust bean or crystal gum and sodium alginate, alkaline substances such as sodium bicarbonate, the usual adjuvants such as urea, thiourea, thiodiglycol, methylated spirits, sodium metanitrobenzene sulphonate and aqueous emulsions of sulphonated oils.  Examples are given and numerous dyestuffs are specified.
Patent GB-1060135-A (GB)
Title: Derivatives of phenylhydroxylamine
Inventor: BASKAKOV JURY ALEXANDROVICH
IPC: C07C271/06
Filed: 1964-05-05
Abstract: The invention comprises compounds of formula PhN(O-acyl)CO2CHMe2, and a method of making them by reacting PhN(OH)CO2CHMe2 with the appropriate carboxylic or sulphonic acid chloride.ALSO:The compounds of formula PhN(O-acyl)CO2CHMe2, in which X is acetyl, propionyl, butyryl or isobutyryl, promote the growth of horse beans while simultaneously destroying wheat sprouts.ALSO:Herbicidal compounds have the formula PhN(O-acyl)CO2CHMe2, in which the acyl group is derived from a carboxylic or sulphonic acid, and may be used as dusts, suspensions of wettable powders, or oil-in-water emulsions.
Patent GB-928600-A (GB)
Title: Improvements in and relating to jackets
IPC: A41D27/28
Filed: 1960-05-25
Abstract: 928,600. Jackets. T. WILLIAMS. Aug. 15. 1961 [May 15, 1960], No. 18568/60. Class 141, In a jacket comprising two layers of impermeable material, air inlet holes 12 are provided in the inner layer to admit air to the space between the layers; strips of fabric 13 are arranged behind the holes to close them when the jacket is tightly closed by a sliding-clasp fastener 14 or a belt. Strips of webbing 15 attached inside the jacket are connected to rings 16 or hooks outside the jacket for attachment to a chain or the like secured to the floor of a vehicle to hold the wearer in his seat.
Patent GB-447521-A (GB)
Title: Improvements relating to the froth flotation concentration of copper sulphides
IPC: B03D1/001
Filed: 1935-06-28
Abstract: A soluble nickel compound, e.g. the acetate, chloride, nitrate, or sulphate, is added as an activator in the froth flotation concentration of copper sulphide ores.  When the ore also contains sulphides such as iron or zinc sulphide a cyanide, e.g. sodium cyanide or zinc cyanide, may be added to inhibit the flotation of the iron or zinc sulphide.  If the ore contains lead sulphide and zinc or iron sulphides, cyanide may be added to inhibit the copper sulphide and the iron or zinc sulphides and a lead froth removed, the nickel compound being then added to activate the copper sulphide which is then floated.  Alternatively, the nickel compound can be added before the first flotation so that the lead and copper sulphides are recovered together.  In one example, an ore containing copper and iron sulphides is treated with nickel sulphate and the copper concentrate obtained by flotation with cresylic acid and thiocarbanilide.  Amyl xanthate may be used as the collecting agent, in which case sodium cyanide is added to inhibit the flotation of the iron.  The pulp is preferably neutral or slightly acid, but may be alkaline.
Patent GB-1312471-A (GB)
Title: Arrangement for purifying the exhaust gas of an internal combustion engine and a device for incorporation in such an arrangement
IPC: F01N3/22
Filed: 1970-04-17
Abstract: 1312471 Fluid-pressure servomotor systems TOYO KOGYO CO Ltd 17 April 1970 [18 April 1969] 18594/70 Heading G3P [Also in Divisions F1 and F2] Secondary air is supplied to the exhaust system of an I. C. engine by an engine-driven pump 5 through a non-return valve 10 which opens at a predetermined pump delivery pressure which will correspond to a certain engine speed. At least some of the pump delivery is exhausted to atmosphere through a non-return valve 42a, Fig. 2, at a predetermined pump delivery pressure above the pressure at which the valve 10 opens, to maintain the air supply pressure substantially constant. Above a predetermined engine or vehicle speed, e.g. 2, 800 r.p.m. a valve 35 is opened, the pump 5 exhausts to atmosphere and the valve 10 closes. The valve 35 which comprises a plate member 36 and a gasket 38 is closed below the predetermined speed by a spring- biased diaphragm 25 to which the engine intake vacuum is applied through passages 16, 21, 22. The passage 21 is opened by a valve 20 operated by a solenoid 17 which is energized below the predetermined speed. The rubber valve 42a is biased by a cone spring 43a to close the apertures 37, 39 in the valve 35. The apertures 37, 39 in the valve 35 may be closed by an annular plate (42b), Fig.5, (not shown), biased by a coil spring (42b) acting between the plate and the casing 32, Fig. 2.
Patent GB-1184840-A (GB)
Title: Valve Locking Mechanism
IPC: F16K11/07
Filed: 1968-04-19
Abstract: 1,184,840. Valves. BENDIX CORP. 19 April, 1968 [24 April, 1967], No. 18636/67. Heading F2V. A manual spool valve 12, which is centred in neutral by a centring spring 58 held between movable retainers 60, 62 is releasably locked in one actuated position by ball detents 68, 70 which move radially into recesses 92 in a part 64 fast with the spool. The balls are biased by the centring spring, through a conical ring 66. The angle of the locking faces on the recess 92 is greater than the angle of the ring. In an up position from the neutral position shown, a pressure port 20 communicates through chamber 18 and check valve 38 with an outlet 34, a loose orifice plate 56 in the outlet being moved away. In a down position wherein the locking occurs, a piston 48 operated from a chamber 22 opens the check valve and another pressure port 26 is communicated to an outlet 106 to a controllable actuator. Leakage at the top end to a drain port 16 is controlled by an orifice 104 in the spool.
Patent GB-1389218-A (GB)
Title: Tool for forming internal threads
IPC: B23G7/02
Filed: 1971-06-03
Abstract: 1389218 Tool for forming internal threads RICHARD LLOYD Ltd 16 June 1972 [3 June 1971] 18709/71 Heading B3N A tool for forming internal threads comprises a stem 12, a main thread forming part 13 and a terminal tapered part 14, part 13 has a plurality of rows of thread portions 15 separated by generally flattish sides 16 so that part 13 is of generally polygonal cross-sectional form with the thread prtions defining rounded corners, and wherein the sides 16 at least intersect the effective thread circle of the main thread forming part 13. Preferably the sides are flat and intersect or cut the core circle 13a and the outer edges 15a extend through an arc of between 5 and 20 degrees. The tool forms a thread in a hole having a diameter approximately equal to the diameter of the effective circle of part 13 by metal displacement. Forming of the tool is by a two-step grinding operation, one step being helical grinding to produce the thread form, the other step being linear grinding to produce the sides.
Patent GB-1428317-A (GB)
Title: Method for in vitro determination of thyroid function and diagnostic reagent composition therefor
IPC: G01N33/78
Filed: 1974-04-29
Abstract: 1428317 Radio-active compositions MALLINCKRODT CHEMICAL WORKS 29 April 1974 [14 May 1973] 18717/74 Heading G6R [Also in Division G1] A diagnostic reagent composition for use in in vitro determination of thyroid function comprises a buffered aqueous suspension containing finely divided, amorphous silicon dioxide, thyroid hormone substance tagged with radioactive iodine and a non-ionic surfactant. In carrying out the determination, a blood serum sample is mixed with a measured amount of the reagent composition, the silicon dioxide is separated from the suspension and the radioactivity of the separated silicon dioxide or of the supernatant liquid is measured. Examples relate to compositions comprising a buffered aqueous suspension of microfine precipitated silica containing L-tri-iodothyronine (T-3) labelled with I-131 and as surfactant nonylphenoxypoly(ethyleneoxy) ethanol, polyoxyethylene (20) oleyl ether, polyoxyethylene (20) sorbitan monolaurate. There is general reference to use in the compositions of L-thyroxine or L-tri-iodothyronine tagged with I-125 or I-131.
Patent GB-1139326-A (GB)
Title: Reductive aromatisation of steroids and intermediates used therein
IPC: C07J75/00
Filed: 1966-04-28
Abstract: 1,139,326. Reductive aromatization of steroids and intermediates used therein. ORGANON LABORATORIES Ltd. 28 April, 1966 [28 April, 1965], No. 18719/66. Heading C2U. Novel #<SP>1</SP>'<SP>4</SP> - 3 - keto - 17# - hydroxy - androstadiene 17-ethers having in the 17-position the groups shown in the following partial formula (in which X is C 1-6  alkyl; and R, R 1 , R 2  and R 3  are each H or alkyl) are exemplary of 17- hydroxy-protected intermediates in a process in which a #<SP>1,4</SP>-3-keto-17#-hydroxy-androstadiene is converted into a protected intermediate of the above-defined type by reaction with a vinyl ether of the formula in the presence of an acid catalyst, this intermediate is treated with at least 2 atomic equivalents of an alkali metal in the presence of a polycyclic aromatic compound capable of serving as a radical anion precursor and an ethereal solvent and the alkali metal salt of the 3-hydroxy steroid thus-produced is treated with an acid, the protective group also being eliminated by treatment with an acid. Examples are given, and comparison is made with the aromatization of #<SP>1,4</SP>-3-keto-17#-hydroxy-androstadiene used as the free ol or as its acetate, hexahydro benzoate or tetrahydropyranyl ether (the last-named being prepared from the free 17#-ol and dihydropyran).
Patent GB-1035929-A (GB)
Title: Hay wafering method and apparatus
IPC: B30B11/20
Filed: 1963-05-13
Abstract: 1,035,929. Compacted hay wafers. MASSEY-FERGUSON Inc. May 13, 1963 [May 14, 1962], No. 18774/63. Heading A2B. Apparatus for making compressed hay wafers includes an annular series of axially open die cells 76 in housings 78, each having axially spaced entrance and exit ends, rotary compression means such as an auger 58 and rollers 62 for successively applying force to hay disposed opposite the entrance onds of the die cells 76 to compress a column of hay into and through the die cells, and means such as the brackets 132 axially engageable with columns of hay emerging from the exit ends of the die cells axially to compact the columns and form them into compressed wafers of hay as the force is applied.
Patent GB-1112205-A (GB)
Title: Method of electrodynamically forming solid metallic workpieces
IPC: B21D26/14
Filed: 1966-04-28
Abstract: 1,112,205. Electromagnetic forming. SIEMENS-SCHUCKERTWERKE A.G. 28 April, 1966 [29 April, 1965], No. 18790/66. Heading B3Q. A method of electromagnetic forming comprises ascertaining the optimum frequency of a discharge circuit including a forming coil (12), Fig. 1 (not shown), by carrying out a number of tests using different values of capacitance for a bank of capacitors (15) in the circuit and plotting the forming travel (U), Fig. 2 (not shown), of a workpiece against the frequency corresponding to the particular values of the capacitance. For a given total energy adjusted by a variable resistance, the optimum frequency is that which results in maximum forming travel, and the corresponding capacitance is the one selected. Reference has been directed by the Comptroller to Specification 896,923.
Patent GB-993408-A (GB)
Title: Vacuum support for a light-sensitive film in a photomechanical camera
IPC: G03B27/60
Filed: 1961-05-24
Abstract: 993,408. Vacuum film holder for photomechanical cameras. POWERS CHEMO Inc. May 24,1961 [June 29, 1960], No.18822/61. Heading G2A. A vacuum holder for supporting sheets of photographic film of various sizes and having a supporting surface with spaced openings for applying suction to the sheet to hold it against the supporting surface, is provided with internested separate manifold chambers for furnishing suction to the openings and with suction supply channels extending in directions radially from the centre of the supporting surface for transmitting suction from the innermost of the manifold chambers to openings over substantially the entire supporting surface and from a surrounding manifold chamber or chambers to chosen parts of the surface, diametrically opposed and radially extending channels from the same manifold chamber being of the same length and arranged so as to apply suction symmetrically to the sheet in concentric zones of substantially equal pressures. As shown, the holder is formed by a perforated front plate 10, on which the film is held by the applied vacuum, and intermediate plates 16, 18 screwed to a back plate 14 to which is secured a conduit 62 communicating with a central opening and parts of openings 66, 68 in the plate 14. The back plate is provided with an upstanding rim 20 and ribs 22 which by air-tight engagement with the plate 18 form nested manifold chambers 24, 26, 28. The plate 18 has a central aperture 30, a first concentric ring of four apertures 32 and a second concentric ring of twenty four apertures 34, all communicating with the chamber 24, and two concentric rectangular sets of openings 54, 46 communicating with chambers 26, 28 respectively. The plate 16 has a central opening 36 co-operating with apertures 30, 32, concentric annular channels 42, 38 connected by radial channels 40, the outer annular channel registering with the apertures 34 in the plate 18, radial channels 44 extending from the channel 38 to the margin of the plate and communicating at 48 with the openings 46 in the plate 18, and shorter radial channels extending to the margins of the plate from openings 52 in register with openings 54 in plate 18. In this way the centre of the film sheet is attracted most strongly to the supporting surface and due to the outward radial decrease in pressure smoothing out of wrinkles is facilitated. The holder is pivotally mounted at 56 on the vacuum supply tube 58 with which the conduit 62 communicates.
Patent GB-153364-A (GB)
Title: Improvements in apparatus for moulding or forming blocks of starch for laundry and like purposes
IPC: C08B30/06
Filed: 1919-07-30
Abstract: 153,364. Mordle, L. Dare-, and Shotter, F. B. July 30, 1919. Moulding pulp.-Comprises improvements in apparatus for moulding blocks of starch for laundry &c. purposes of the type comprising a closed container into which the starch is introduced in a plastic or semi-liquid condition and water expelled therefrom by compressed air. The container is provided with a grid or frame comprising detachable sections adapted, when assembled, to form a series of receptacles for the starch and - capable of ready separation from the moulded blocks and the container. As shown, the sections 17 are formed of aluminium &c. and comprise a longitudinal member provided at one side with a series of parallel transverse members forming three-sided cavities, the fourth side being closed by an adjacent section, as shown in Fig. 2. The container comprises a tubular body member 1 tapering upwardly internally, a concave cover 2 and concave bottom 3 secured together by bolts 9. The cover 2 is strengthened by ribs 7 and is fitted with a small tubular compartment 4 closed by a perforated bottom 5 and apertured at 6 to ensure uniform distribution of the compressed air which is introduced through an aperture 3a The bottom 3 is formed with partitions 11 apertured at 12 for the passage of water which escapes through an opening 13. The grid 17 is supported upon a cloth 16 on a perforated plate 15.
Patent GB-598575-A (GB)
Title: Improvements in and relating to magnetrons
IPC: H01J25/587
Filed: 1945-07-24
Abstract: 598,575. Magnetrons. BRITISH THOMSON-HOUSTON CO., Ltd. July 24, 1945, No. 18985. Convention date, July 29, 1944. [Class 39 (i)] In an ultra-high fre quency magnetron the axial magnetic field is provided by magnetic. preferably permanently magnetised, pole - pieces 12, 13, Fig. 3, at anode potential, the pole-pieces 12, 13 are screened from electron bombardment by shields 30, 33 secured to the ends of the cathode structure 24 by metallic members 31, the latter offering a small area to the flow of heat by conduction from the cathode structure 24 to the end shields 30, 33, and the end shields 30, 33, have an area substantially greater than any lateral cross-section of the cathode structure 24. The metallic members 31 are preferably a plurality of short lengths of nickel wire, spotwelded or soldered to the shields 30, 33, and to flanges 29 on the cathode structure 24, and the end shields 30, 33, which are preferably cupshaped to reduce the voltage gradient at the edges thereof, are formed of a material of poor electron emissivity, e.g. nickel, and may be carbonised or blackened to improve their heatradiating properties. The cathode 24 is preferably indirectly heated, as shown, and the leads 22, 23 thereto pass through an axial hole in the upper pole-piece 12, from which they are spaced by an insulator giving a long leakage path ; an exhaust, tube is attached to the lower end of a similar hole in the lower polepiece 13. The pole-pieces 12, 13, are secured in spaced relation with reference to the multicavity anode structure 6 by means of discs and cylindrical sleeves, Fig. 1 (not shown). The container is of ferromagnetic material such as cold rolled steel and is closed at each end by flanged members welded thereto and which carry the pole-pieces 12, 13. External cooling fins and a mounting flange are provided.
Patent GB-1426277-A (GB)
Title: Sensitive silver halide radiogrpahic materials
IPC: G03C1/83
Filed: 1973-04-19
Abstract: 1426277 Radiographic silver halide material EASTMAN KODAK CO 19 April 1973 [21 April 1972] 19009/73 Heading G2C A sensitive radiographic material comprises a support coated on one side with a layer of a blend of, or with adjacent layers of, a spectrally sensitized surface-sensitive photographic silver halide emulsion and an internally fogged internal image photographic silver halide emulsion containing, to reduce halation, at least one methine dye which is adsorbed to the grains and is removable from the material during processing, the silver halide compositions of the surface-sensitive and internally fogged emulsions being such that development of exposed surface-sensitive grains causes development of the adjacent internally fogged grains. The methine dye may be a complex cyanine of the Formula I:- a cyanine dye of the Formula II:- a merocyanine dye of the Formula III:- or a hemioxonol dye, providing a spectral sensitivity to radiation of wavelengths longer than 539 nm. where L, L 1  and L2 each is a methine group which may be substituted; R and R 2  are each alkyl, cycloalkyl or substituted alkyl; R 1  is alkyl, substituted alkyl or aralkyl or together with L2, 2- 3C alkylene; D and D, together complete a 4- thiazolidinone, 5-thiazolidinone, or 4-imidazo lidinone; n is 1, 2 or 3; Z, Z', Z 1  and Z 2  each complete a non-metallic heterocyclic nucleus containing a 5-or 6 -membered heterocyclic ring; Q completes a non-metallic 5 - or 6 -membered heterocyclic nucleus; and X# is an anion. The surface-sensitive emulsion may be a silver bromoiodide emulsion and the internal image emulsion a silver chlorobromide emulsion. The dye or dyes of Formulae II and III may be used to reduce halation and also to spectrally sensitize the surfacesensitive emulsion. The dyes used may be anhydro- 3, 9-diethyl -5,5'-dimethoxy-3'-(3-sulphobutyl) thiacarbocyanine hydroxide and anhydro -3', 9 - diethyl - 5' -methoxy -5-phenyl -3-(3-sulphobutyl) oxaselenacarbocyanine hydroxide.
Patent GB-478131-A (GB)
Title: Improvements relating to electric distribution systems
IPC: H02G5/08
Filed: 1936-07-10
Abstract: 478,131. Electricity supply; fuse-boards. HOLLANDER, J. M. July 10, 1936, Nos. 19123 and 23707. [Class 38 (iv)] [Also in Group XXXVI] Installation wiring.-In electric distribution means comprising a plurality of continuous conductors passing through a casing and a plurality of fixed socket or plug members carried by a panel arranged in and at the back of the casing and each connected to a different conductor, a second panel adapted to be introduced through an opening in the casing is provided with plug or socket members capable of engaging the socket or plug members arranged in the casing and connected to power consuming apparatus through fuses arranged on the panel. In Figs. 3 and 4, rigid bus-bars 1 are arranged in a continuous casing 2 and connected to respective sockets 11 arranged on an in.- sulating panel 12 secured to the bars 1. Power is taken from the conductors 1 through conductors connected through fuses 18 on a panel 17 to plugs 19 arranged on the back of the panel 17 and adapted to be engaged with the sockets 11 when the panel 17 is secured in position. The opening in the casing 2 through which the panel 17 is introduced is closed by means of a door 6, the panel 17 being secured on uprights 14 or held in place by the door 6 when in position. In an alternative arrangement, Figs. 8 and 9, flexible conductors 1 carried in conduits 22 pass through distribution boxes having sockets 11 arranged therein and connected to the conductors through tap clamps 9 carried by a panel 24. Power is taken from the conductors 1 through plug-in fuse units, the panels 17 of these units being secured to lugs 31 in the distribution boxes when in position.