baber/WOPTO huggingface dataset:
Patent GB-497342-A (GB)
Title: Improvements in auxiliary lamps and headlamps for motor road vehicles
IPC: B60Q1/068
Filed: 1937-06-16
Abstract: 497,342. Vehicle lamps; mounting reflectors and electric lamps in lanterns. PEILL, D. M., and MAcINTYRE, N. June 16,1937, No. 16769. [Classes 75 (ii) and 75 (iv)] In a vehicle lamp which can project two different forms of light beam, two reflectors 14, 21 carrying electric lamps 16, 22 are mounted at an angle to one another on a vertical bar 11 oscillatable in diametrically opposed bearings 8 through a limited angle by remote control means such as a Bowden cable connected to a pulley 24 which is fixed to the bar 11, arcuate contact strips 26, 27 are connected to the lamps 16, 22 respectively, and a spring 37 opposes rotation of the bar 11 by the remote control means and holds the contact 26 against one end of a live contact 34 (not shown). This maintains the lamp 16 in circuit when the reflector 14 is in the operative position. When the bar 11 is rotated, contact between 26 and 34 is broken, and between 27 and 34 is made, so that when the reflector 21 is in the operative position the lamp 22 is in circuit. The two reflectors project different kinds of light beams, e.g. the reflector 21 and/or its lamp may be coloured, and the lamp 22 may be out of focus. The bearings 8 form part of a split ring 7 which is adjustable to the size of the casing 1. The contacts 26, 27 are carried by an insulated block 25 attached to the pulley 24, and are connected by spring contacts 32, 33 to the lamps 16, 22. Rotation of the carrier owing to the spring is limited by engagement of the strip 34 with an outwardly bent end 26b of the strip 26. Motion due to the Bowden cable is limited by the abutment of projections on the spindle 9 and bearing 8. The front glass 3 has a stepped part 3a at the top, and corrugations over the rest of its inner surface.
Patent GB-348902-A (GB)
Title: Manufacture of wool dyestuffs
Filed: 1930-05-30
Abstract: Wool dyestuffs are obtained by heating 1 molecular proportion of a benzene derivative which contains a secondary amino group and two primary amino groups in o-positions thereto and at least one sulpho group, with 1 molecular proportion of a compound of the benzene series in which two nitro groups stand in o-position and one nitro group in p-position to a replaceable atom or atomic group, and heating the product in alkaline solution.  A diphenylamine derivative is first formed and this undergoes condensation on further heating in alkaline solution, alkali nitrite being split off.  The substituent in the secondary amino group may be an aromatic, hydroaromatic, heterocyclic or aliphatic residue.  The products dye level yellowish-brown to violet-brown shades.  In examples (1), 2,6-diaminodiphenylamine-4-sulphonic acid (prepared by condensing 2,6-dinitrochlorobenzene-4-sulphonic acid with aniline and reducing the nitro groups) is condensed with 2,4,6-trinitroanisole and the product heated in sodium carbonate solution; it dyes wool yellowish-brown shades; if instead of aniline used to prepare the above diphenylamine derivative, there is employed 4-phenetidine, 4-anisidine, or 4-toluidine, the final products are more reddish dyestuffs; if there is employed 2-chloraniline, 2-phenetidine or 2-anisidine, reddish-brown dyestuffs are obtained, and if 2-amino-1,4-xylene or 4-amino-1,3-xylene is employed brownish-violet dyestuffs are obtained: (2) 2,6-diamino-4-sulphophenyl-n-butylamine (prepared by condensing 2,6-dinitro-1-chlorobenzene-4-sulphonic acid with n-butylamine and subsequent reduction) is condensed with 2,4,6-trinitro-1-chlorobenzene and the product heated in sodium carbonate solution; it dyes reddish-brown shades: (3) 2,6-diamino-4-chlorodiphenylamine-31-sulphonic acid (prepared by condensing 1,4-dichloro-2,6-dinitrobenzene with 1-aminobenzene-3-sulphonic acid and subsequent reduction) is condensed with 2,4,6-trinitroanisole and the product heated in sodium carbonate solution; it dyes yellowish-brown shades: (4) the reduced condensation product of 2,6-dinitro-1-chlorobenzene-4-sulphonic acid and 4-aminoantipyrine is condensed with 2,4,6-trinitroanisole and the product heated in sodium carbonate solution; it dyes reddish-brown shades.
Patent GB-901201-A (GB)
Title: Improvements in or relating to transistor circuit arrangements for separating field synchronizing pulses from a television signal
IPC: H04N5/10
Filed: 1961-05-09
Abstract: 901,201. Transistor synchronizing pulse separator circuits. PHILIPS ELECTRICAL INDUSTRIES Ltd. May 9, 1961, [May 12, 1960], No. 16844/61. Class 40 (6). Frame synchronizing pulses are separated from line synchronizing pulses by applying the mixed pulses between base and emitter of a transistor normally biased to be over-saturated, in such a polarity as to tend to cut off the transistor, the frame pulses, but not the line pulses, being long enough in relation to the charge storage properties of the transistor to eliminate the state of saturation. In Fig. 5, the complete television signal 30 is applied to the base of a transistor 33 through a biasing network 31, 32 arranged so that only the " sync " pulses 2 appear at the collector electrode. These are applied through a resistor 3 to the base of a transistor 4 biased so as to be oversaturated. The transistor is chosen to have a time constant of charge storage such that line pulses do not cut the transistor off whereas frame pulses are long enough to do so, so that an output pulse is obtained at C only for frame pulses. The resulting waveform Vc is applied to a similar circuit 38 but having a longer time constant so that the line pulse slots in the waveform Vc are removed, producing the output waveform V E . In an alternative embodiment (Fig. 7, not shown) in which the complete video input waveform is of opposite polarity, the first transistor is of NPN type and the line pulse slots during the frame pulse are eliminated by providing a circuit similar to 38 in front of transistor 1. It is stated that the input signal could alternatively be applied to the emitter instead of to the base and that point contact transistors may replace the junction type shown. Specification 870,613 is referred to.
Patent GB-130514-A (GB)
Title: Improvements in Machines for Separating Dust and other Particles from Grain and other Granular Substances.
IPC: B07B4/02
Filed: 1918-10-16
Abstract: 130,514. Robinson & Son, T., Robinson, C. J., and Stevenson, T. J. Oct. 16, 1918. Pneumatic separating.-Apparatus for separating dust, &c. from grain and other granular sub stances, in which the dust, &c. is removed by air operating in a closed cycle, comprises a fan 1 delivering air down a conduit 4 to a chamber 6 whence it passes upwardly along a leg 5 down which the grain, &c. falls from an inlet 12. The air. &c. then pass under a deflecting-plate 9 into a chamber 10, in which light material is deposited, and from the top of this chamber through an inlet 2 to a cyclone separator 15 in which the dust is deposited the purified air then passes to the eve of the fan and is again circulated. The grain. dust, &c. are removed from the chambers through rotary trap-valves 7, 11, 16 having chambers separated by radial plates 17 whereby the entry of air is prevented: the conduit 4, the leg 5, and the chamber 10 are all of practically the same width.
Patent GB-416657-A (GB)
Title: Improvements in direction signalling apparatus for use on road vehicles
IPC: B60Q1/34
Filed: 1934-06-07
Abstract: 416,657. Road - traffic signals on vehicles. McGUIRE, J. K., 26, East Parade, Leeds. June 7, 1934, No. 16900. [Class 118 (ii).] A semaphore signalling arm is bent from a sheet metal blank and the ends are secured by tongue and slot engagement at the narrow or boss end. The blank shown in Fig. 1 is first bent to form the boss 9<x>, Fig. 2, the tongues 2 entering slot 3 and the two outer tongues being bent over. The centre tongue is drilled to form an attachment for the operating cable 13. The rest of the blank is then folded to form the spear-shaped head and the tongue 5 inserted in the slot 4 and then bent over to hold the end of the blank and form an anchorage for the spring 10. The edges 11 are folded over and the strengthening piece 9 (Fig. 7) fixed by tabs 8 in slots 7. Side panels resting against the edges 11 are pivoted to the arm at 19 and contacts 17 for a festoon lamp 18 are provided, the lower contact being carried by the pivotally mounted block 20. The arm is mounted in the casing 16 by bracket 15 formed from a sheet metal stamping to afford a shock-absorbing finger 15<x> and side spring pips 15<y> which engage the side faces of the arm to hold it in its normal position.
Patent GB-971145-A (GB)
Title: Continuously-variable frictional gear unit
IPC: F16H15/42
Filed: 1963-04-30
Abstract: 971,145. Variable-speed friction gear. K. MAICHEN. April 30, 1963 [April 30, 1962; Nov. 29, 1962], No. 16967/63. Heading F2D. A continuously variable friction gear cornprises conical members on coaxial or parallel driving and driven shafts with their conical surfaces facing away from one another and engaged by a friction ring adjustable to vary the gear ratio. As shown in Fig. 1 conical members 2, 3 connected to a driving shaft 1 and an output pinion 23 are engaged by a friction control ring 16, whose inclination is adjustable by an hydraulic piston 19, 20 integral with a stirrup member carrying two sets of rollers 17 engaging opposite sides of the ring. Spring washers 11 are mounted between the members 2, 3 and an additional fluid cushion 10 may also be provided. Nozzles 22 supply cooling fluid to the contact areas between the members 2, 3 and the control ring 16. In the embodiment according to Figs. 9, 10 shafts 40, 43 are connected by pinions 39, 42 meshing with the pinions 38, 41 of three lay gear units, each consisting of double cone members 2, 3 engaged by a pair of friction control rings 16. Fig. 12 shows a similar form of variable-speed unit combined with a spur pinion reversing gear 47, 48, 49, 52, 53 operated by a dog-clutch 51.
Patent GB-1063879-A (GB)
Title: Benzimidazole derivatives
Inventor: SEKI TERUYA
IPC: C07D235/28
Filed: 1965-04-22
Abstract: 1,063,879. Benzimidazoles. TAISHO PHARMACEUTICAL CO. Ltd. April 22, 1965, No. 17045/65. Heading C2C. Compounds of the formula in which R represents a halogen atom or an alkyl, an alkoxy, an alkylamino, or a dialkylamino group and R<SP>1</SP> represents H or a dialkylamino-ethyl or a morpholinoethyl group and in which all alkyl and alkoxy groups have 1-6 C atoms, are prepared by reacting a 2-chlorobenzimidazole with the corresponding 4-substituted thiophenol in an organic solvent to produce a compound of the above general formula, where R<SP>1</SP> is H and treating this with a suitable alkaline material in the presence of an inert solvent and then reacting with the corresponding basically substituted alkyl chloride.
Patent GB-1392356-A (GB)
Title: Image-intensifier tube
IPC: G21K4/00
Filed: 1972-04-13
Abstract: 1392356 Image intensifier tubes PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 13 April 1972 [16 April 1971] 17103/72 Heading H1D In an image intensifier tube of the electrostatic inverter type (Fig. 1, not shown) including a photocathode and a luminescent screen, the screen includes a cathode-luminescent layer covered, on the side facing the photocathode, by an electrically conductive and light impervious layer the nature and thickness of which are such that, a 50% reduction of the accelerating voltage, to a value not less than 8 kv., from the nominal operating value, produces a 90% reduction of image luminance, whereby an increased range of image intensity over that range of accelerating potentials for which image definition remains satisfactory. The layer may be of aluminium 10,000 angstroms thick; or of another metal-eg. titanium, silver, lead, or gold-which may be sandwiched between the fluorescent layer and an aluminium layer; or of the luminescent material, e.g. zinc cadmium sulphide, but devoid of activator, sandwiched between the activated luminescent layer and an aluminium layer. The intensifier tube is particularly intended for use in X-ray applications.
Patent GB-700422-A (GB)
Title: Improvements in or relating to tube-bending machines
IPC: B21D7/06
Filed: 1951-07-19
Abstract: 700,422. Angular bending. CHAMBERLAIN, A. G. Jan. 22,1952 [July 19, 1951], No. 17179/51. Class 83 (4) In a reciprocating bender abutment rolls 2 are removably carried on arms 3 positioned in use by abutments 25. and foldable when not in use against a jack cylinder 8. The arms 3 and the abutments are mounted on a bender 4 of the jack. Liquid is pumped from a reservoir 9 by a pump 27 with operating lever 17 pivoted on a lever 38 to move the ram 7 with attached former head 24. The ram is withdrawn by spring or hand means.
Patent GB-1049511-A (GB)
Title: Aminoplast resin compositions
IPC: C08L61/20
Filed: 1963-05-01
Abstract: Organic or inorganic salts of a tertiary amine Nr1R2R3, where R1, R2 and R3 are independently methyl or CR1R11R111 and R1, R11 and R111 are Cl-4 alkyl or hydroxyalkyl and R1, R2 and R3 are not all methyl, are used as latent curing catalysts for aminoplast resins.  The only amines specified are 2-dimethylamino-2-methyl-1,3-propane diol, tris hydroxy methyl dimethylamino methane, 4-dimethylamino-4-methyl-2 pentanol-1 and 2-dimethylamino-2-methyl propanol, the hydrochloride and p-toluene sulphonate of which are used in the examples. Reference is made to U.S.A.  Specification 2,326,727 which discloses salts of t-monoamines or t-alkylolamines in general and Specification 596,153 which, discloses salts of trimethylamine.  Various aminoplasts are mentioned; they may be modified or plasticized with thiourea, toluene sulphonamide, sucrose, benzene sulphonamide, substituted guanamines, glucosides, carbamates or polyhydroxy compounds.  Applications.-The latent-catalysed resins may be used to prepare decorative laminates from impregnated and dried sheets of alphacellulose paper, viscose rayon paper, or glass, cotton, wool or synthetic fibre cloth, e.g. as an assembly of such sheets or as a laminate of (1) a rigid substrate, e.g. plywood, fibre board or a phenol-formaldehyde impregnated laminate, (2) an aminoplast impregnated paper print sheet and (3) an aminoplast-impregnated overlay sheet.  They may also be used for postformable laminates, e.g. of crepe paper; plastic dinner ware; oil, water or air filters of bonded fibres; orthopaedic resins and plywood.
Patent GB-1399656-A (GB)
Title: Surface-modified polyester articles
IPC: C08G63/672
Filed: 1972-04-14
Abstract: 1399656 Treating polyester fibres BEAUNIT CORP 14 April 1972 [3 June 1971] 17299/72 Heading DIP [Also in Division C3] The surface of polyester fibres is modified by treatment with a composition comprising a mixture of: (I) 10-50% by wt. of a copolymer having 15-30% by wt. of ester units, 60-80% by wt. of oxyalkylene groups and 1-25% by wt. of polyepoxy containing groups and (II) from 15-60% by wt. another polyepoxide. I may comprise ethylene terephthalate units, polyoxyethylene units (av. M.W. 1500-6000) and a polyglycidyl ether radical derived from the reaction product of epichlorohydrin and glycerol. II may be a polyglycidayl ether of glycerol. The composition may also contain 10-50% by wt. of a textile lubricating agent. The compositions may co-crystallise on to the surface of polyester fibres having similar ester units. An RFL latex may be applied simultaneously or separately. The treated fibres have enhanced adhesion to rubber.
Patent GB-705661-A (GB)
Title: A process and plant for converting molten materials into a granular or powdery crystalline product
IPC: B01J2/04
Filed: 1950-07-11
Abstract: <PICT:0705661/III/1> Aqueous solutions of salts, such as sodium carbonate and calcium nitrate, which crystallize exothermically at a temperature above room temperature, are converted into granular crystalline products by spraying the solution, at a temperature at or slightly above the point of crystallization, into a chamber through which a current of gas is circulating, the temperature and water vapour pressure of the gas being adjusted, prior to admission into the chamber, by a cooling and condensing device in the gas circulation circuit, so as to secure rapid removal of all the heat of crystallization and cooling of the granules to the desired temperature without appreciable dehydration taking place.  In most cases the gas, which may be air, is cooled to a temperature below 10 DEG  C. in the cooling and condensing device.  In the Figure, the solution is supplied through a pipe 2 to the spray device of p chamber 1; and air is blown by fan 4 into the chamber through pipe 5. A vertical tube (not shown) discharges the air a short distance below the spraying device and the air flows concurrently down the chamber with the sprayed particles.  The crystalline product is separated from the air in the lower part of the chamber, and the product is removed at 3.  The heated air leaves the chamber through pipe 6, and is passed through dust-remover 7. The air then enters cooler 9, which is provided with a coil 10 through which a cooling medium is passed. The cooled air leaving the cooler is returned to fan 4 through pipe 14.  Condensate is removed from cooler 9 through outlet 13.  If necessary, the air may be cooled to a lower temperature in the cooler 9 than that at which it is to be circulated through the spraying chamber.  In such a case, part of the air leaving the cooler is passed through a heating device before it is introduced into the chamber. Specification 289,116, [Class 32], is referred to.
Patent GB-1499058-A (GB)
Title: Device comprising a connection housing and a pot for use in a compressed air pipe line
IPC: F15B21/041
Filed: 1976-04-28
Abstract: 1499058 Pressure vessel lids J LORCH GES & CO KG 28 April 1976 [6 May 1975] 17353/76 Heading F2P [Also in Divisions B1-B2] A filter separator, oil mister and/or pressure reducing valve (Fig. 1, not shown) for a compressed air line comprises a head 2 with inlet and outlet apertures, to which a cup-like bowl 1, of transparent material, is removable secured by a bayonet joint formed by arcuate lugs (11) on the bowl co-operating with inwardly facing lugs (6) on the head, and a member 16 is movable by a knob 15 against the action of spring 20 from the position shown where it locks the joint, thus preventing rotation of bowl 1 relative to head 2, to a raised position where it allows such rotation. Head 2 has a square cross-section (Fig. 4, not shown) with lugs (6) on its sides, and member 16 is located in one corner where its flange 21 normally lies on a level with lugs (11) to prevent their lateral movement. Member 16 (Figs. 9-11, not shown) is a triangular prism, and flange 21 extends the full arcuate distance between two lugs (11). Knob 15 has a stem 17 carrying resilient hooks 23 which engage in a bore (24) in member 16 (Figs. 12-14, not shown).
Patent GB-1038407-A (GB)
Title: Improvements in measuring instruments
IPC: G01D13/00
Filed: 1963-05-03
Abstract: 1,038,407. Friction clutches; clutch control. ROBERT BOSCH G.m.b.H. May 3, 1963 [May 5, 1962], No. 17500/63. Headings F2C and F2L. [Also in Division G1] An indicating element 20 can optionally either be driven by a movable member 16 of a measuring instrument, such as a Bourdon gauge, or held in an arrested position by means of an armature 19 fixed on the shaft 18 of the indicating element 20 and urged either against member 16 or against a stationary member 21 depending on which of two magnetizing coils 22, 23 is energized. In a time-delay circuit shown in Fig. 2 an electromagnetic relay A is connected to magnetizing coil 23 and battery B on closure of switch 30. The armature 19 is then arrested. If the key 31 is closed the relay A is actuated and closes contact a 2 . At the same time contact a 1  connects magnetizing coil 22 to battery B so that armature 19 is drawn into the measuring position. As measuring is commenced the relay A is disconnected from the battery and a capacitor C discharges through the winding of relay A and through one of resistors 35 or 36. The magnetizing coil 23 is then switched on by contact a 1  and the indicating element is arrested.
Patent GB-913119-A (GB)
Title: Body supporting or exerciser device
IPC: A47C4/46
Filed: 1960-05-18
Abstract: 913,119. Seats. SOLLOWAY, H., and GOODMAN, M. May 18, 1960, No. 17532/60. Class 52(2). A dismountable underframe pivotally supports two mutually pivoted seat-forming frames 14, 15 about spaced axes 19. The resiliency of legs 25, 26 allows the occupant to swing the frames 14, 15 until pivots 13 and 19 are all aligned. Clamps 17, 18 provide ears for the pivotal attachment of sleeves 20 which are joined by cross-bars 22, 21. The ends of two U-shaped leg frames are inserted in sleeves 20. To fold the seat or form a ground seat (Fig. 4, not shown), legs 25 are removed from the sleeves and the leg frames are swivelled about the rear sleeves 20 to bring the portions 24 together. A form in which the sleeves are provided by tubular legs and spigots are pivoted to the clamps 17, 18, is referred to.
Patent GB-1400705-A (GB)
Title: Camera systems
IPC: G03B27/72
Filed: 1971-05-27
Abstract: 1400705 Calculating lens flare in cameras LITTLEJOHN GRAPHIC SYSTEMS Ltd 25 Aug 1972 [27 May 1971] 17557/71 Heading G2A  The flare present within the lens system of a camera such as a studio type reproduction camera or an enlarger is computed as an interval of time which is then subtracted from the flash exposure used in a half tone exposure process to correct for the presence of flare. The flare time is assumed to be directly proportional to L A  d<SP>2</SP> E/V<SP>2</SP>, where LA is the luminous flux reaching the lens within an acceptance angle A for flare, d is the aperture diameter of the lens, V is the image distance and E is the general exposure. The circuit shown computes this quantity and a meter M displays the resulting flare time. Instead of indicating the flare time tF, a signal may be fed directly to a system which compensates for the flare effect automatically. The quantity LA is measured by a photo-cell of the photovoltaic type having linear characteristics which is positioned so its sensitive area covers more than the area subtended by the lens acceptance angle. Amplifiers having a feedback loop to produce logarithmic responses are used to compute the flare time.
Patent GB-356715-A (GB)
Title: Process for the manufacture of oxide cathodes for electric discharge tubes
IPC: H01J1/14
Filed: 1930-06-06
Abstract: 356,715. Thermionic cathodes. EGYESœLT IZZOL‡MPA •S VILLAMOSS‡GI R•SZV•NYT‡RSAS‡G, Ujpcst, near Budapest. June 6, 1930, No. 17582. Convention date, Dec. 23, 1929. [Class 39 (i).] Oxide cathodes are formed by treating with alkaline-earth metal vapour a body comprising a metal core coated with one or more tungsten or molybdenum bronzes of the general formula R2O.WO2.nWO3, where R is a monovalent metal, or RO.WO2.nWO3, where R is a divalent metal such as the alkaline earth metals and where the tungsten may be replaced by molybdenum. The bronze layer may be produced as in Specification 355,334 by electrolysis of solutions of salts of meta- or poly-tungstic or molybdic acids with the metal core as cathode, alkaline earth salts such as BaW4O13.9H2O being preferably employed. Barium tungsten bronze, BaW3O9, treated inside the discharge tube with barium vapour forms metallic tungsten and barium oxide, the cathode being then heated to 1500‹ C. to ensure adhesion of the oxide layer. The core may be of tungsten, molybdenum or nickel. Specification 341,826 also is referred to.