baber/WOPTO huggingface dataset:
Patent GB-540597-A (GB)
Title: Improvements in the manufacture of azo dyestuffs
Filed: 1939-12-02
Abstract: 540,597. Dyes. COMPAGNIE NATIONALE DE MATIERES COLORANTES ET MANUFACTURES DE PRODUITS CHIMIQUES DU NORD REUNIES ETABLISSEMENTS KUHLMANN. Dec. 2, 1939, No. 31311. Convention date, Dec. 23, 1938. [Classes 2 (iii) and 15 (ii)] Monoazo and primary diazo dyes are obtained in substance by diazotizing an amine of the general formula wherein R represents an aromatic residue, which may be substituted, e.g. by halogen atoms or by alkyl or alkoxy groups, and coupling with a component. The products are applicable for colouring fibres, plastic masses, paper, rubber &c. Examples relate to the preparation of the following dyestuffs, (1) 2- amino - 4 - trifluoromethyl - 1 : 1<SP>1</SP> - diphenyl ether# the anilide, 3<SP>1</SP>-nitranilide, 1<SP>1</SP>- or 2<SP>1</SP>- naphthylamide, 2<SP>1</SP> - methyl - 4<SP>1</SP> - chloroanilide, 2<SP>1</SP>- or 4'-anisidide, 2<SP>1</SP>-toluidide, 21-methoxy- 4<SP>1</SP>-chloroanilide or 2<SP>1</SP>: 4<SP>1</SP>-dimethoxy-3<SP>1</SP>-chloroanilide of 2:3-hydroxynaphthoic acid or diacetoacetyl - tolidine, (2) 2 - amino - 4 - trifluoromethyl - 4<SP>1</SP> - chloro - 1 : 1<SP>1</SP> - diphenyl ether# the 2<SP>1</SP> : 4<SP>1</SP> - dimethoxy - 3<SP>1</SP> - chloroanilide of 2 : 3-hydroxynaphthoic acid, (3) 2- amino - 4 - trifluoromethyl - 21 - methyl 1 : 11 - diphenyl ether# 1 : 4 - naphtholsulphonic acid. Specifications 294,883, [Class 2 (iii)], 361,097 and 442,884 are referred to. 2 - Amino - 4 - - trifluoromethyl - 1 : 1<SP>1</SP> - diphenyl ether and its 41-chloro- and 2<SP>1</SP>-methyl-derivatives are obtained by reduction of the nitro group in the products of reaction of 2-nitro-4-trifluoromethyl-1-chlorobenzene with potassium phenolate, 4-chlorophenolate and o-cresolate respectively ; diazo components are similarly derived from 2- and 3-chlorophenols, m- and p-cresols and monoalkylated derivatives of 1 : 3- and 1 : : 4-dihydroxybenzenes. The Specification as open to inspection under Sect. 91 comprises also the production of the dyestuffs on textile fibres, e.g. of cotton, viscose or wool. This subject-matter does not appear in the Specification as accepted.
Patent GB-1351096-A (GB)
Title: Radar distance measuring apparatus
IPC: G01S13/32
Filed: 1972-07-05
Abstract: 1351096 Radar HONEYWELL GmbH 5 July 1972 [6 July 1971] 31366/72 Heading H4D Distance measuring apparatus in which two signals are correlated, one being a delayed version of the transmitted pseudo-random sequence of pulses the other being the received signal and wherein the delayed signal is progressively delayed by a given time interval per period of pulse sequence and the delay for maximum correlation is measured to indicate the distance. Generators 2, 3 produce identical pseudo-random sequences under the timing control of clock 1. The signal X(t) is used to modulate the radar transmitter 4 and received signals are demodulated and passed to one input of sign logic 11. Generator 3 produces a signal Z(t) at the end of every completed pseudorandom sequence which advances counter 14 by one and is fed to the J input of bi-stable 21. During the next clock pulse from clock 1, generator 3 is held reset by the Q output of bi-stable 21 and thus is delayed in recommencing the next pseudo-random sequence. Generator 2 however continues to recycle without delay since the J input to bi-stable 23 is held continuously at "0". Thus the signal X(t - #) fed to the second input of logic 11 has a progressively increasing delay with respect to the transmitted signal during successive sequences. Logic 11 detects whether the instantaneous values of the two inputs A and B are identical and produces a corresponding + or - output which is fed to up-down counter 12. Since the auto-correlation function of a pseudo-random code is zero except at coincidence counter 12 content will vary about zero for the sequences before coincidence and during the period when the delay of the comparison signal equals the echo time of the received signal will rise to a maximum. At maximum count, a signal V12 stops period counter 14 and resets generators 2 and 3 to recommence their cycles. The output of counter 14 is transferred into a memory and decoder 16 which drives a digital indicator 17. The two correlated signals are also fed to an analogue correlation chain 25, 26 which drives an A-D converter 27 whose output provides a further digit 28 for the distance indication. During the sequence in which coincidence of the two signals occurs the analogue correlation provides a finer resolution of the range. A further increase in resolution may be obtained by increasing the clock frequency at the expense of loss of maximum range. Light or acoustic waves may also be used. Device may be used for anti-collision in all types of vehicle or for a fuse.
Patent GB-462486-A (GB)
Title: Improvements in steering gear
IPC: B62D3/06
Filed: 1935-11-13
Abstract: 462,486. Cam mechanism. MELHUISH, A. E. (Ross Gear & Tool Co.) Nov. 13, 1935, No. 31437. [Class 80 (iii)] In steering-gears of cam-and-lever type as described, for example, in Specification 234,584, [Class 80 (iii)], the rocker shaft arm is provided with two pins or followers both of which engage the cam during normal steering movements, but one of which passes out of engagement with the cam during excessive movement e.g. for parking purposes, the pin in action then engaging a part of the helix of lesser pitch. The steering shaft is shown at 1, the cam at 2, the rocker shaft at 5 and the arm thereof at 5a. This arm carries two pins 5b which in the normal steering positions, engage spaced portions of the cam near the ends thereof and of the same pitch. During movement in the arc a, b both pins are engaged by the cam for normal steering but only one pin is in engagement, during arc movement a, d or b, c, with the intermediate portion of the cam which is of lesser pitch than the spaced end portions.
Patent GB-1470118-A (GB)
Title: Self-lubricating sintered compotite materials
IPC: F16C33/12
Filed: 1974-07-16
Abstract: 1470118 Bearings AGENCY OF INDUSTRIAL SCIENCE & TECHNOLOGY 16 July 1974 [20 July 1973] 31537/74 Heading F2A [Also in Division C7] A self lubricating composite material comprises tungsten disulphide and molybdenum disulphide in a matrix of, for example, nickel, copper or a copper alloy. The material is prepared by blending a metal powder with the powdered disulphides, compression-moulding the blend and sintering the moulding in a vacuum at 800-1000 C.
Patent GB-860102-A (GB)
Title: Improvements in or relating to brushes
Inventor: WRIGHT JOHN FRANCIS HUGH
IPC: A46B11/00
Filed: 1959-09-16
Abstract: 860,102. Brushes. BELL, T. C. Sept. 16, 1959, No. 31552/59. Class 19. The brush consists of a handle, stock 13, stiffener plate 11 secured in and projecting out from the base of the stock, and a bag of porous, flexible material 10, e.g. polyurethane foam, secured to the stock after having been positioned about the perferably tapered stiffner plate that allows of a limited flexing of the head formed by the bag and the plate during use of the brush. The bag is formed by holding a sheet of the appropriate material upon itself and securing the side edges together with adhesive. The stock may be formed with internal passages as well as having built in pump means and/or valves for supplying liquid to the bag.
Patent GB-1319188-A (GB)
Title: Method of making bi-metallic pipe
IPC: B21C37/14
Filed: 1971-07-06
Abstract: 1319188 Metal pipe L B FOSTER CO 6 July 1971 [6 Jan 1971] 31613/71 Heading F2P [Also in Division B3] A corrosion-resistant pipe is made by helically winding a strip 10 of carbon steel bonded, e.g. by spot welding or preferably by epoxy cement, to a strip of corrosion-resistant metal such as stainless steel and welding the adjoining helical edges of both strips. The bonded strip is fed on to a mandrel (15) beneath forming rolls (16, 17, Fig. 1, not shown). A plasma welding head (18) welds the abutting stainless steel edges and the weld 23 enters into the carbon steel. A submerged arc welding head (21) welds the abutting edges of the carbon steel strip and the weld 24 enters the plasma weld but does not pass through to the stainless steel sheet.
Patent GB-979815-A (GB)
Title: A driving device for sliding windows
IPC: E05F11/42
Filed: 1961-09-04
Abstract: 979,815. Bowden mechanisms; toothed gearing; friction gearing. H. T. GOLDE G.m.b.H., H. GOLDE, and M. LOFFLER, [trading as H. T. GOLDE G.m.b.H. & CO. KOMM. GES.]. Sept. 4, 1961 [Sept. 3, 1960], No. 31786/61. Headings F2K and F2Q. [Also in Division E2] A sliding window 1 in a vehicle &c. is opened and closed by means of a flexible cable 37 in driven connection tangentially with a wheel 36 mounted on a driving shaft 34 which is rotatable by a hand crank 8; the cable is guided in a flexible tubular guide 11 having a longitudinally slotted portion 12 in which the attachment 16 connecting the cable to the window is slidable during movement of the window. The wheel 36 preferably is obliquely toothed for engagement with a helical rib 38 or other projections on the cable core which may be of circular, triangular or rectangular cross-section. Alternatively, the wheel may be a friction wheel in frictional contact with a cable of strip-like form. Braking action for maintaining the shaft stationary when the crank is stationary is provided by a helical braking spring, Figs. 7, 8 (not shown), encircling the shaft 34 and bearing against the inner surface of the housing 10. In an alternative arrangement the cable is attached to the window at two spaced locations by two attachments 16, each slidable in a slotted portion of the tubular guide. Alternatively, two separate cables attached to the window at spaced locations may be tangentially driven from different parts of the periphery of the driving wheel.
Patent GB-809319-A (GB)
Title: 4, 4-difluoro-3-buten-1-yne and salts thereof
IPC: C07F1/00
Filed: 1957-10-11
Abstract: Group I or Group II metal salts of 4,4-difluoro-3-buten-1-yne may be used as additives to fuels for internal-combustion engines. An example is given where the mercuric salt of 4,4-difluoro-3-buten-1-yne is added in the proportion of 1 gm. per gallon (U.S.) to petrol which contains 2 cc. of tetraethyl lead per gallon.  The petrol used contained 24 per cent olefines, 16 per cent aromatics, 56 per cent paraffins, 4 per cent cyclo-paraffins, and 0.05 per cent sulphur.ALSO:4,4-Difluoro-3-buten-1-yne may be polymerized alone or in combination with other polymerizable monomers, e.g. styrene or methyl methacrylate, by heating with a free radical catalyst, e.g. benzoyl peroxide.ALSO:The invention comprises 4,4-difluoro-3-buten-1-yne and metal salts thereof of general formula <FORM:0809319/IV (b)/1> where X is hydrogen or a Group I or Group II metal and n is a whole number of the same value as the valence of X. The metals are preferably those of Groups IB and IIB of the Periodic Table. 4,4-Difluoro-3-buten-1-yne may be prepared by pyrolysing 1-ethynyl 2,2,3,3-tetrafluorocyclobutane, when tetrafluoroethylene monovinylacetylene and vinylidene fluoride are also formed as by-products.  Preferred reaction conditions are temperatures of 600-1000 DEG  C. in an atmosphere substantially free of oxygen, at pressures less than 50 mm. of mercury.  The reactor may be constructed of any inert heat-resistant material, e.g. quartz, heat-resistant glass or stainless steel, and may be heated by electric heaters or the pyrolysis may be effected over glowing metal filaments such as platinum.  The ethynyl tetrafluorocyclobutane may be added dropwise to the inlet end of the reactor and then reaction products collected at the exit end of the tube in a series of traps cooled with liquid nitrogen.  The crude product may be partially purified by fractional distillation, and further purified by vapour phase chromatography.  The metal salts of 4,4-difluoro-3-buten-1-yne may be prepared by reacting a salt of a metal from Group I or II with 4,4-difluoro-3-buten-1-yne.  Examples are given of the preparation of 4,4-difluoro-3-buten-1-yne and the corresponding mercury and silver salts.  Other salts specified are those of lithium, sodium, potassium, calcium and barium.  The 4,4-difluoro-3-buten-1-yne may be chlorinated or brominated to yield 3,4-dichloro 4,4-difluorobutyne and 3,4-dibromo-4,4-difluorobutyne respectively.  The compounds of the invention are preferably stored in the presence of a trace of e.g. hydroquinone.ALSO:4,4 - Difluoro - 3 - buten - 1 - yne and its Group I or Group II metal salts may be used as bactericides.  An example is given illustrating the use of the mercuric salt of 4,4-difluoro-3-buten-1-yne in solution of acetone.
Patent GB-505663-A (GB)
Title: Improvements in or relating to electron discharge apparatus of the electron multiplier type
IPC: G04B37/14
Filed: 1937-11-19
Abstract: 505,663. Electron multipliers. ELECTRICAL RESEARCH PRODUCTS, Inc. Nov. 19, 1937, No. 31885. Convention date, Nov. 20, 1936. [Class 39 (i)] Coaxial, annular, secondary-electron emitting cathodes are arranged in alignment along their common axis between the primary cathode and the anode or collector electrode and are mounted on supports of insulating material carried by or rising from the stem of the envelope, the cathodes having individual leads and means being provided for producing a magnetic field along said axis. The secondary electrodes may be in the form of cylindrical metal bands, preferably coated on their inner surfaces with emitting material and equally spaced along the discharge tube axis, and are at uniformly increasing potentials from primary cathode to collector electrode. The tube is surrounded by a cylindrical magnet or coil producing an axial field of intensity which is greatest in the region of the primary cathode and decreases uniformly towards the collector electrode to compensate for the corresponding variations in the electrostatic field between the secondary electrodes and an auxiliary' electrode in the form of wire arranged along the axis of the discharge tube. The collector electrode is energized from a separate source, the other electrodes being connected to tappings on a potentiometer. In the modification shown in Fig. 4, the primary cathode and secondary electrodes are conical frustums partially nested together and provided with flanges 238 which are clamped to uprights 241, through which pass the potential supply leads 243. The collector electrode 244 is of similar shape. Disposed between the lowermost secondary cathode 237<5> and the electrode 244 is a screen electrode 249 in the form of a number of parallel wires, which serves to prevent reaction upon the secondary cathode of the potential variations upon the electrode 244. The linear rod 222 mounted axially of the system serves as the accelerating electrode, and may comprise several wires through which a current is passed to produce a magnetic field, or the rod may be a permanent magnet. In a further form, the cathodes 265, Fig. 6, are frusto-conical and are supported on insulating uprights 262 having fingers 264 to which are locked flanges on the cathodes; the uprights are carried by a threearmed spider 261 supported by rods from collars 259 clamped round the stem. The leads 275 to the electrodes are passed radially through a flange 258 on the press of the tube and are bent at right-angles so as to lie parallel to the tube axis. A hollow pillar 275 of mica carries inner frusto-conical electrodes 276<1>, one for each of the cathodes and of the same length, which serve as accelerating electrodes for the tube. Either the inner or the outer set of electrodes or both sets may be rendered secondary-emitting and operate as cathodes, and the primary electrode may be photo-electric or thermionic.
Patent GB-1436625-A (GB)
Title: Overvoltage protective circuit
IPC: H02H9/06
Filed: 1973-07-04
Abstract: 1436625 Overvoltage protective circuits SANKOSHA KK 4 July 1973 31946/73 Heading H2H An overvoltage protective circuit for use with lines L1, L2 connected to equipment T1 to be protected comprises a first pair of series connected, oppositely poled diodes D1, D2, a second pair of series connected reversely poled diodes D3, D4 and overvoltage protective devices Al, A2 connected between junctions P1, P3 and ground E1. A positive voltage surge applied to the lines L1, L2, for example by lightning is shunted to ground via the diodes D1, D2 and the device A1 whilst a negative voltage surge is shunted to ground via the diodes D3, D4 and the device A2. The devices A1, A2 may be gas filled discharge tubes, varistors or thyristors. Additional pairs of diodes D5, D6 and D7, D8 may be connected between the lines. Coils l1, l2 which present a high impedance to the surge current may be connected in the lines L], L2. To prevent the short circuitry of high frequency signals on the lines L1, L2 by the capacitance of the diodes, a coil may be connected between each pair of diodes.
Patent GB-829245-A (GB)
Title: Resin-drug compounds
Inventor: LINNELL WILFRED HERBERT
IPC: A61K47/48
Filed: 1957-10-14
Abstract: Resinate salts of b -phenylethylamines are made by combining a derivative of b -phenylethylamine with an acidic cationic ion-exchange resin, for example, either a styrene polymer cross-linked with divinyl benzene and containing sulphonic acid groups, or a cross-linked polymerized methacrylic acid.  The b -phenylethylamine derivative may be a drug such as ephedrine, adrenaline, isoprenaline, amphetamine or methylamphetamine and may be reacted with the ion-exchange resin in solution as the free base or as the hydrochloride.  The resinate salts of drugs may be used in pharmacy since the drug is slowly released in the body.
Patent GB-218573-A (GB)
Title: Improvements in or relating to driving gear for the wheels of mechanically propelled road vehicles
IPC: F16H48/30
Filed: 1923-12-21
Abstract: 218,573. Pickering, J. I. Dec. 21, 1923. Clutches, arrangements and applications of; balance gearing; de-clutching for steering.-In either differential axles or axles in which normally only one wheel is driven a clutch is provided for locking both axles together and releasing them when required. The clutch comprises spring-separated members e, f on the ends of the axle-shafts a, b, the member e being operated by a rod h passing axially through the shaft a and controlled by external means. In the construction shown in Fig. 1 the rod h is connected to a sliding collar l operated bv a rod o and forced lever m. In the construction shown in Fig. 3 the rod h projects beyond the axle-shaft into the hub cap q. and is pushed back to lock the clutch when a filling piece is inserted in the hub cap and the latter is screwed in place again.
Patent GB-875044-A (GB)
Title: Preparation of dispersions of barium hydroxide in non-volatile solutions of barium sulfonate
IPC: C10M159/24
Filed: 1959-09-22
Abstract: A dispersion of barium hydroxide in a solution of a barium salt of an oil-soluble sulphonic acid is prepared by (a) dissolving a mixture of an oil-soluble sulphonic acid and a non-volatile solvent in a volatile aromatic hydrocarbon solvent to provide a solution containing 15-35 parts by weight of sulphonic acid, 15-35 parts by weight of non-volatile solvent and 30-70 parts by weight volatile solvent, (b) adding a hot aqueous solution of barium hydroxide to the sulphonic acid solution in an amount 1.5-2.5 times that required to react with the sulphonic acid, (c) heating the reaction mixture at reflux tempertures, (d) removing substantially all of the water by azeotropic distillation with the volatile solvent, (e) removing any residual volatile solvent by distillation, (f) stripping and filtering the product.  The sulphonic acid may be mahogany sulphonic acid, dinonyl naphthalene sulphonic acid or various alkylated benzene sulphonic acids.  The non-volatile solvent is preferably mineral lubricating oil, while the volatile aromatic hydrocarbon may be benzene, toluene or p  xylene.  Step (b) may be carried out in two stages, sufficient barium hydroxide to neutralize the sulphonic acid being first added, most of the water present being then removed, and the rest of the barium hydroxide solution being finally added.  The dispersion of barium hydroxide produced according to the invention may be employed as a lubricating oil additive.
Patent GB-323489-A (GB)
Abstract: 323,489. Webb, C. F., and Black, H. D. July 27, 1928. Divided on 320,945, [Class 106 (iii), Fares &c.]. Strip-feeding arrangements.-In a ticket printing issuing machine, ejecting means (for example a friction roller) are provided, and a reaction member disposed one on either side of a ticket in such a manner that the freshlvprinted portion of the ticket does not engage with the reaction means, and consequently is not smudged. The ticket is printed by meansof a single rotary type-cylinder 20. A curved guide plate 12 is mounted on a rocking arm 13 the free end being located close to the surface of a rubber-tyred wheel 3 driven by band and chain gear from the driving motor. The severed ticket is fed so as to lie on a chord of the curve of the guide plate 12 and tangential to the wheel 3, and is delivered by rotation of the wheel 3. The corners of the plate 12 adjacent the wheel 3 are bent towards the wheel and maintain the freshly-printed portion of the ticket out of engagement with the plate 12.
Patent GB-637271-A (GB)
Title: An improved stove
IPC: F24B5/02
Filed: 1948-05-04
Abstract: 637,271. Stoves. MODZELEWSKI, J. May 4, 1948, No. 32430/47. [Class 126] A closed solid fuel stove comprises an internal casing containing the fire space and ash-pan so arranged between the front and back plates of an outer casing that a continuous passage for the circulation of hot combustion products is formed from one side to the other of the internal casing past the underneath of its bottom plate. As shown E, Fig. 1, is the internal metal sheet casing with fire space k and ash-pan space i formed between the front and back plates band c, Fig. 3, of the outer metal casing D, an opening t being provided in the internal casing so that the hot combustion products may pass through passages F via the underside of the ashpan space escaping to the flue o through an opening r in the back plate of the stove. The top opening t is preferably fitted with baffle plates u whilst a hit-and-miss damper q formed in the back plate c and opening into rear chamber p regulates the flow of the combustion products. In a further embodiment the back plate of the stove is adapted to have a water tank placed in contact with it.
Patent GB-317461-A (GB)
Title: Improvements in the manufacture of flat, thin-walled rubber articles from rolled sheets
IPC: B29C53/36
Filed: 1928-11-06
Abstract: 317,461. Dorogi, I., Dorogi, L., and Dorogi Ús Tarsa Gummigyßr R-T., Dr. Aug. 17, 1928, [Convention date]. Indiarubber, seaming and jointing.-Two pieces of rubber 11 are united by pressure at the edge 2. This seam is folded over and again pressed down to unite with the upper sheet of rubber as shown in Fig. 7 or the seam may be given a double fold as shown in Fig. 8. Reference has been directed by the Comptroller to Specification 318.336.
Patent GB-1523353-A (GB)
Title: Instruments
IPC: G01R1/12
Filed: 1975-08-04
Abstract: 1523353 Moving coil instruments SANGAMO WESTON Inc 4 Aug 1975 [2 Aug 1974] 32466/75 Addition to 1407690 Heading G1U A one piece base has a support 33, sides 37, 38 and ends 35, 40 with an aperture 50, in the support for receiving surfaces 72, 74 in the bottom half 26 of a two piece yoke, and apertures 56, 57 in the sides mating with corresponding surfaces in the top half 25. The surfaces and apertures serve to secure and positively locate the magnetic circuit comprising the yoke 25, 26 surrounding permanent magnet 27. The sides 37, 38 may flex outwards to allow insertion of the yoke. The movement is fixed to the instrument housing by bolts passing through ears 62, 64. The coil 28 taut-band suspension fits into apertures in ends 33, 35. The instrument is identical to that of Parent Specification 1523354.