baber/WOPTO huggingface dataset:
Patent GB-492237-A (GB)
Title: Improvements in non-slip and non-skid chains for use on wheel tyres
IPC: B60C27/08
Filed: 1938-02-02
Abstract: 492,237. Wheel tyres. CHAUBEYRE, G., and FABREGUE, G. Feb. 2, 1938, No. 3241. Convention date, Feb. 23, 1937. [Class 144 (ii)] A tyre gaiter, or the cross-chain element of a tread band, is formed by metal shoes connected by circular links b, each shoe comprising an outer, grooved, ground-engaging portion a<1> and an inner portion a<3> having a tyre-seating face of convex form in transverse section to permit tilting of the shoes. Preferably, as shown in Fig. 3, the tread-grooves a2 are alternately oppositely inclined.
Patent GB-1508131-A (GB)
Title: Crushing apparatus
IPC: B02C1/06
Filed: 1976-04-20
Abstract: 1508131 Jaw crushers N BOOTH 20 April 1976 [21 March 1975] 3245/74 Heading B2A A jaw crusher comprises a pair of movable jaws 4 Fig. 1 mounted on a carrier 5 and reciprocated by an eccentric 6 to cooperate with fixed jaws 3. The spacing may be adjusted by shims 22 and rubber blocks 11, 13 absorb vertical loads applied to the carrier. At least one of the fixed jaws is protected against overload by a collapsible hollow bar 23. The carrier may be constrained between a rubber block 13 and a roller 26 or ball Fig. 3. Each fixed jaw 3 is mounted on one of a pair of jaw mountings 15, and rests on a foot 19 which has an inclined upper surface 20 against which the jaw is urged by a wedge 21. Each jaw is reversible. The arrangement is applied also to the movable jaws.
Patent GB-556362-A (GB)
Title: Improvements in and relating to rotary screening apparatus
IPC: B01D33/00
Filed: 1942-03-16
Abstract: 556,362. Filters. HARTLEY, C. J. March 16, 1942, No. 3418. [Class 46] [Also in Group II] A rotary drum screen, particularly for sewage, comprises channel or other section metal spokes 12 secured between double hub flange members 11 at their inner ends and having gussets 20 acting as cantilever brackets attached to their outer ends, the screening plates or members 21 being attached to the gussets by means of angle irons 22. Sewage is fed by a channel 31 or a pipe into the front of the drum, which is open except for an annular plate 24 to retain the screenings, the back of the drum being covered by plates 19 which may be perforated. The spokes 12 are formed with lips 23, or carry trays, for conveying the screenings to a fixed shoot 25, the lower end of which extends through the open front of the screen to a discharge pipe 27 or a pit. The shaft 10 may be driven through gearing 13 by an electric motor 33. Wash water is supplied by pipes 28, 29 to the shoot 25 and the outside of the screen. A rotatable cleaning brush may be driven from the shaft 10. Reference has been directed by the Comptroller to Specification 284,403, [Class 46].
Patent GB-946788-A (GB)
Title: Improvements relating to electrical plug or socket connectors
Inventor: MERGLER WALTER
IPC: H01R13/504
Filed: 1961-01-30
Abstract: 946,788. Two-part couplings. LICENTIA PATENT-VERWALTUNGS G.m.b.H. Jan. 30, 1961, No. 3455/61. Heading H2E. A plug or socket connector has contact members 20 secured in the main insulating body 30, e.g. of polyvinylchloride, the contact pins 20 being directly connected with the conductors 26 of an incoming lead 28, these connections and the parts of the pins secured in the body being provided with selected high quality insulation 32, of good insulation resistance and dielectric strength. The insulation 32 may be a coated varnish or an insulating sleeve shrunk on to the pin 20. Suitable insulation material 32 may have a phosphate basis or comprise a copper oxide layer, while suitable varnishes include phenolformaldehyde compounds, epoxide resin, polycarbonate compounds or stoving enamels. Sleeve materials may be polyamide, polystyrene or similar thermoplastic materials. The body may comprise a single moulding, as shown, or may be formed in two parts. An earthing contact 50, Fig. 4, may be incorporated in the plug and held in an aperture in one part of a two-part body with the bent ends extending laterally therefrom. Alternatively, the body may be rendered conductive by the addition of carbon black and earthed.
Patent GB-1519629-A (GB)
Title: Ink jet printing
IPC: G06K15/00
Filed: 1975-07-21
Abstract: 1519629 Selective printing SILONICS Inc 21 July 1975 [19 July 1974] 03901/78 Divided out of 1519627 Heading B6F The subject of this Specification is identical to that of Specification 1,519,627, but the claims are directed to the control of the ink pressure in the common chamber connected to each of the orifice containing chambers.
Patent GB-432911-A (GB)
Title: Improvements in and relating to steam traps
IPC: F16T1/04
Filed: 1934-02-06
Abstract: 432,911. Steam traps. BARTY, T., and WESTINGHOUSE BRAKE & SAXBY SIGNAL CO., Ltd., 82, York Road, King's Cross, London. Feb. 6, 1934, No. 3907. [Class 64 (ii)] In a steam trap comprising a casing 1 containing a thermostatic element 2 adapted to control the operation of a valve 7 establishing communication between the steam pipe 9 and the atmosphere through ports 14, only the steam entering the casing when the valve is opened is directed into immediate contact with the thermostatic element by means of a guide member 12, attached to an internal partition 10 of the casing, while the condensate is separately diverted to the outlet 14 through a vertical passage 13. The hot vapour rising from the condensate passing to the ports 14 also contacts with the thermostatic element.
Patent GB-929220-A (GB)
Title: Gold plating
IPC: C25D3/62
Filed: 1962-02-01
Abstract: 929,220. Gold plating solutions. SEL-REX CORPORATION. Feb. 1, 1962 [May 1, 1961], No. 3952/62. Class 41. Gold plating solutions containing silver to give a low carat plate of 14 to 24 K, also contain soluble gold and silver cyanides and a water-soluble titanium compound e.g. amino alcohol titanate. This may be made by treating isopropyl titanate with ethanolamine, adding sorbitol hemihydrate as stabilizing agent, and removing the isopropyl alcohol. Other stabilizers include inositol, sucrose and related unsaturated alcohol and acid derivatives of 3 to 7 C atoms and 3 to 6 hydroxy groups e.g. aconitic acid or sodium salts thereof. The plating solution also preferably includes a soluble selenium compound e.g. selenium diethyl dithio carbamate, or sodium selenite. Specifications 759,181 and 763,010 are referred to.
Patent GB-679871-A (GB)
Title: Improvements in and relating to lubricating compositions
IPC: B65D85/672
Filed: 1950-02-16
Abstract: A lubricating composition comprises a mineral lubricating oil or grease and a minor proportion of one or more trithiones free from water-solubilizing substituents, of general formula <FORM:0679871/III/1> where R and R1 represent hydrogen, or aliphatic, cyclo-aliphatic or aromatic radicles or may together form a ring structure.  R and R1 may be substituted by halogen atoms, alkoxy, aryloxy, keto, carbalkoxy, nitro or acylamino groups, and free from carboxy or sulphonic acid groups.  Suitable compounds include 2- or 3-phenyl trithione, 3-(41methoxyphenyl) trithione, and benztrithione (also known as 2.3-dithiosulphindene).  They may be used as solutions or suspensions in mineral lubricating oil (solubilizing agents being added if necessary) in amounts from 0.05-5.0 per cent by weight of the mineral lubricating oil or grease.  Generally less than 1.0 per cent is sufficient, and preferably between 0.2-0.6 per cent by weight of the lubricating oil or grease.  The final composition possesses extreme pressure properties.  The mineral lubricating oil may be derived from paraffinic or asphaltic residues and refined by any known process such as solvent extraction, solvent de-waxing, or treatment with sulphuric acid and/or activated earth.  Other additives such as pour point depressors (alkylated naphthalenes), thickeners (soaps and inorganic gels), oxidation inhibitors (2, 4 dimethyl-6-tertiary-butyl phenol and 2, 6 ditertiary butyl-4-methyl phenol), sludge dispersers (oil soluble metal soaps and oil-soluble metal phenates), anti-corrosion agents (polycarboxylic acids formed by condensing alkenes with maleic acid), viscosity index improvers (polyisobutylenes and methyl methacrylate polymers), foam preventing agents (polymeric organic silicones and metasilicates), and anti-ring sticking agents (metal soaps of alkylated salicylic acids) may be present.  Also other extreme pressure additives such as chlorinated paraffin wax, calcium dichlorostearate, tricresylphosphate, bichlorophenylphosphate and 2, 4-di(trichloromethyl)-6-nitro-1, 3-benzodioxane may be added.  Examples describe the performance of compositions comprising 0.26 per cent by weight of 3-(41-methoxyphenyl) trithione (equivalent to 0.1 per cent sulphur increment by weight), and conventional additives added to a high viscosity index solvent refined mineral lubricating oil.
Patent GB-449916-A (GB)
Title: Improvements in and relating to devices for lining the holes of railway sleepers for the purpose of taking up the play of chair screws screwed into these holes
IPC: F16B37/12
Filed: 1935-02-07
Abstract: 449,916. Bushing internal screwthreads. STREIT, A. P., 47, Route d'OrlÚans, Cachan, France. Feb. 7, 1935, No. 4011. Convention date, Feb. 7, 1934. [Classes 83 (iii) and 83 (iv)] [See also Groups XXV and XXIII] The screw holes for chair screws are bushed by inserting a metal helix 1 of V crosssection. This helix is formed by securing a malleable strip in the hole 8 of the mandril 4 and then passing the mandril and strip through the die 10, thus pressing the strip on to the thread 5. The bush is then inserted into the work whilst still on the mandril but a backward turn causes the bush to grip the sides of the hole, breaks the strip at the hole 8 and thus allows the mandril to be withdrawn. Various locking devices associated with the hole 8 are described.
Patent GB-872114-A (GB)
Title: Improvements in and relating to the preparation of epoxy compounds
Filed: 1959-02-05
Abstract: Olefinically unsaturated compounds are epoxidised by treatment with hydrogen peroxide of at least 30% by weight strength in the presence of an organic polyhydric compound and an acidic substance.  The olefinic compounds preferably contain C12-26 hydrocarbon radicals. Specified olefinic compounds include hydrocarbons from C5 upwards; esters and ethers of olefinic alcohols of molecular weight 200-3,000; and esters, amides, substituted amides and nitriles of C12-26 fatty acids; naturally occurring glycerides are specifically mentioned. Suitable polyhydroxy compounds include mono- and poly-saccharides, both sugar-like and non-sugar-like, and polyhydric alcohols. Non-sugar-like polysaccharides may be used in degraded form, e.g. by prior mixing with the acidic substance.  Suitable acidic substances include inorganic and organic acids or acid halides e.g. mineral acids, boron trifluoride or boron trifluoride-water adducts, acid phosphoric acid esters, p-toluenesulphonic acid and high molecular weight sulphonic acid resins.  Temperatures of 0-100 DEG C. are mentioned.  Usually 1.1 to 2 mols of hydrogen peroxide are used per double bond in a mol of unsaturated compounds.  Normally the quantity of polyhydric compound and acidic substance amount to 7-15% of the unsaturated compound although more may be used when employing a synthetic resin catalyst.  The hydrogen peroxide is generally added over a period of 2-4 hours.  The process may be operated continuously in a countercurrent manner.  The products may be used as plasticizers and stabilizers for polyvinyl chloride and mixed polymers thereof, and as lubricants, lubricating oil additives or as textile oils.
Patent GB-365352-A (GB)
Title: Improvements in and relating to the production of toothed gears
IPC: B23F23/12
Filed: 1931-02-09
Abstract: 365,352. Lapping toothed g e a r s . KLINGELNBERG, G. A., KLINGELNBERG, M., KLINGELNBERG, R. G., KLINGELNBERG, W. H., and KLINGELNBERG, H. W., (trading as KLINGELNBERG SOHNE, W. F.), Remscheid, Berghausen, Germany. Feb. 9, 1931, No. 4057. Convention date, Feb. 11, 1930. [Class 60., In lapping spur or bevel gears by running them in meshing engagement and applying abrasive thereto, the gears are given additional relative lateral axial and irregular angular wobbling movements so as to render the gears insensitive to errors in their relative positions when assembled for service. In cutting the gears, a grinding tolerance is left on the tooth flanks as shown in Fig. 4, this tolerance being greater at the tips and roots of the teeth where the sliding movement is greatest and less at the pitch circle. This excess metal is removed during the lapping to obtain the correct involute profile. The tooth depth is also made larger than usual being from 2.25 to 2À3 times the module. The bed 1 is provided with perpendicular guides 2, 3, the former supporting a headstock 4 carrying the spindle 5 of one of the gears 7 to be treated and the latter supporting a slide 4<1> having a pivot 37 for a rocking plate 36 which carries the headstock 9 for the spindle 6 of the co-operating gear 8. This headstock may be angularly adjusted by means of a circular slide 38 to enable bevel gears to be treated. The spindle 5 is mounted in a sleeve 10 having spherical portions bearing eccentrically in discs 11, 12, the discs being themselves eccentrically mounted in a barrel member 15. The discs are adjustable in the barrel to vary the eccentricity of each end of the spindle 5. The barrel is driven through worm gearing 17, spiral gears 19, shaft 20, and worm gearing 21 from a motor 22, the rotation of the barrel imparting to the gear 7 a threedimensional " wobble motion. The shaft 20, Fig. 18, also drives an eccentric cam 26 which through a slide 27, screw 28, and nut 29 reciprocates the headstock 4 to vary the lateral distance between the gear spindles. A shaft 32, also driven from the shaft 20, carries an eccentric device consisting of inner and outer parts 34, 33, respectively, these parts being relatively adjustable to vary the eccentricity of the part 33 from zero to a maximum. The part 33 engages in the forked end of the plate 36 which is thus rocked on its pivot 37. At the same time the part 33 reciprocates a screwed spindle 39 engaging a nut 40 on the slide 4<1>, thus imparting a relative movement longitudinally of the gear teeth. The headstocks may be adjusted by means of handwheels 43, 44, on the spindles 39, 28, respectively,
Patent GB-786573-A (GB)
Title: Improvements in door-handling means for horizontal chamber coking ovens
IPC: C10B25/12
Filed: 1955-02-11
Abstract: 786,573. Coking-apparatus. KOPPERS GES., H. Feb. 11, 1955 [Oct. 8, I954], No. 4202/55. Addition to 699,399. Class 55 (1). [Also in Group XXVI] The double-acting bellows-like fluid pressure motor of the parent Specification is replaced by a double-acting piston motor comprising a cylinder 1 suspended by studs 34 from the frame 33 of the door-handling machine. The piston 5 is welded to a piston rod having a large end 7 slidable in a bottom seal 25, and an upper smaller end 10 slidable in an upper seal 25. A head 12 to which the door-lifting mechanism is connected is screwed into a recess in the end of the rod. A nut 13 acts as a stop. The packing rings 19 are preferably of synthetic plastic and are held in place in recesses in the piston by screwed rings 20 having flanges 21 which bear down on the channels in the rings. Grooves 23 in the sides of the rings 20 and openings 24 in the flanges 21 allow the fluid pressure to reach all parts of the rings 19. The seals 25 are similarly held by screwed rings 26. Grease-gun lubricating passages 27, 28, 30 are provided.
Patent GB-229344-A (GB)
Title: Improvements relating to exhaust steam injectors
IPC: F04F5/46
Filed: 1925-02-14
Abstract: 229,344. Friedmann, A., [Firm of]. Feb. 14, 1924, [Convention date]. Giffard injectors; regulating or controlling action; nozzles. - An exhaust-steam injector for the feed-water of locomotive boilers is provided with two auxiliary passages for the live steam in order that this steam may be admitted either to take the place of the exhaust steam or. when exhaust steam is available, to open a valve admitting the exhaust steam to the injector. The change-over device controlling the supply of live steam for this purpose is operated .either manually or automatically. In the arrangement shown in Fig. 1, with the parts positioned when the locomotive is stationary or running down a gradient, live steam passes from the boiler through a pipe 17 to the nozzle 1 and through the pipe 10 to the annular nozzle 3. When the locomotive is running, the handle 16 is operated to move the piston 15 to close the pipe 10 and open a pipe 11. Live steam then acts on the underside of a valve 13, which is lifted to open a valve 14 and permit exhaust steam in the pipe 4 to flow through the nozzle 2 of the injector. Feed-water is supplied through a pipe 6. The construction of the piston may be modified. In the arrangement shown in Fig. 3, the supply of live steam to the pipes 10, 11 is controlled automatically by a lift valve 24. When the locomotive is being driven under steam, there is sufficient pressure in the space 28, communicating through a pipe 29 with the steam chest, to keep the valve 27 closed and prevent the valve 24 from opening; live steam from the passage 17 then passes through the pipe 11 to open the valve 14 for the exhaust steam to flow to the injector. If the throttle valve is closed so that there is reduced pressure in the space 28, the boiler pressure in 17 lifts the valve 24 on to its upper seating 26. Live steam then passes through the pipe 10 to the nozzle 3 to take the place of the exhaust steam, and owing to the reduction of pressure in the pipe 11 the valve 14 closes. A valve may be provided for the regulation of the supply of boiler steam that is admitted to the nozzle 1 through the pipe 9 when starting the injector.
Patent GB-820230-A (GB)
Title: Control circuit arrangements for electrostatic precipitators
IPC: B03C3/66
Filed: 1957-02-07
Abstract: 820,230. Electrostatic precipitators. APRA PRECIPITATOR CORPORATION. Feb. 7, 1957 [March 6, 1956], No. 4216/57. Class 39(1). [Also in Group XXXV] The supply to an electrostatic precipitator is controlled in dependence upon the frequency of the flashovers occurring in the precipitator whereby if the preciptator elements become fouled such as to cause a high rate of flashover the voltage supplied to the electrodes is reduced and vice versa. In the type of precipitator where each section thereof is cleaned sequentially by a fluid blast, such as air or steam, the motor driving the cleaning apparatus may also be controlled according to the flashover rate so as to drive the cleaning apparatus faster or slower according to the state of the precipitator and hence the flashover rate. An electrostatic precipitator comprising a number of sections 13, 14, 15, 16. . . has each section supplied from a separate power source 30, 31, 32, 33 . . . each of which comprises circuitry to reduce the voltage of the flashover rate increases (see Group XXXV). The speed of a motor driving the cleaning mechanism 29 may be varied according to the rate at which flashover in the precipitator is taking place.
Patent GB-897828-A (GB)
Title: A fluorescent lamp operating circuit
IPC: H05B41/282
Filed: 1959-02-06
Abstract: 897,828. Supply circuits for space-discharge lamps. LICENTIA PATENT - VERWALTUNGS-G.m.b.H. Feb. 6, 1959 [Feb. 21, 1958], No. 4259/59. Class 38 (4). A fluorescent lamp is provided with a resistive ballast in the form of a controllable transistor. A fluorescent lamp 16 is supplied from a D.C. source UN by way of an oscillator 1, which produces alternating current having a rectangular waveform, the alternating current being fed from the oscillator output transformer 1a to a transformer 3, which feeds the lamp 16, over half-wave discriminating devices 2a, 2b, the connection between the centre taps on the transformer windings containing a transistor 4. By means of a further transistor 9 and voltage dividers 5, 6 and 7, 8, the transistor 4 is controlled to function as a resistive ballast for the lamp 16. The lamp has filamentary electrodes which are heated by means of a transformer 10, a transistor 12 being supplied to prevent heating current being developed after the lamp has ignited.
Patent GB-178974-A (GB)
Title: Improvements in means for regulating the current output of dynamo electric generators
IPC: H02K21/14
Filed: 1921-02-05
Abstract: 178,974. Torrance, J. W., and Torrance, J. M. Feb. 5, 1921. Pole-pieces and yokes.- A dynamo-electric generator is provided with means for automatically limiting the current and voltage at excessive speeds, such means consisting in adding an extension or series of extensions without moving parts to the pole-piece or yoke to form an air gap of constant dimensions between the polepieces and yoke so that the distorted flux produced bv armature reaction at high speeds is deflected across the gap. Fig. 1 shows an extension a fitted to the pole A so that a gap is provided between the pole and the yoke C. An extension may be fitted on each side of the poleshoe or on the yoke C. The extension a may consist of a single bar fixed to the outer faces of the pole-shoe or yoke, or may be made up of plates or stampings interleaved with the core laminations.
Patent GB-730068-A (GB)
Title: Improvements relating to the removal of ammonia from water
Inventor: AKEROYD EWART INGHAM
IPC: B01J47/02
Filed: 1953-02-16
Abstract: 730,068. Purifying water. PERMUTIT CO., Ltd. Feb. 16, 1954 [Feb. 16, 1953], No. 4288/53. Class 46. In removing ammonia from water b) a cation exchange process with periodica regeneration, the ex change material is divided into two parts 1, successively traversed by the water and regeneration is carried out when the first part 1 ceases to be effective in removing the bulk of the ammonia, the regenerative solution being passed successively through the second and first parts of the material. If the second part is unduly charged with ammonia, a little of the regenerative solution is allowed to run to waste before the solution is passed through the first part. The direction of the regenerative flow may be the same as or opposite to the service flow, the flow being in both cases through the second part first. As shown in Fig. 1, the two parts are in separate chambers but all the material may be in one chamber, Fig. 4, and the parts separated by a distributer and collector 8 at the interface between the two parts ; in this case the regenerative solution from the second part is collected and stored to be passed through the first part on completion of the regeneration of the second part.
Patent GB-438109-A (GB)
Title: Feed mechanism for machine tools
IPC: B24B47/20
Filed: 1934-02-09
Abstract: 438,109. Toothed gearing. FORTUNAWERKE SPEZIALMASCHINENFABRIK AKT.-GES., Cannstatt, Stuttgart, Germany. Feb. 9, 1934, No. 4320. Void [Abridged as open to inspection under Sect. 91 of the Acts, July 12, 1935]. [Class 80 (i)] In a face-grinding or other machine-tool, a shaft 9, turned by a handle 16, drives a tool- or work-slide 1, or spindle slowly through a reducing train 11, 12, 15, or rapidly through a toothed segment 10, the gearing being changed by swinging the handle laterally about a pivot 17 to slide the shaft 9 and with it gears 10, 11 axially, both gear trains being simultaneously in engagement during a change, so that the slide 1 is positively locked against movement. The train and segment gear respectively with rack teeth 6, 5 on the slide.