baber/WOPTO huggingface dataset:
Patent GB-162228-A (GB)
Title: Improvements in and relating to lubricating devices
IPC: F16N7/30
Filed: 1920-09-01
Abstract: 162,228. Farmer, C. C. May 12, 1920, [Convention date]. Lubricant conveyed by fluid.-A lubricator for air compressors, of the kind in which air is forced into a chamber 3 and through a valve 6 into an inner chamber 4, passing on the suction stroke through an opening 11 and through the body of lubricant 2 back to the compressor, is so constructed that the chamber 3 is of large capacity and area relatively to the chamber 4, so that in operation the oil level in the chamber 3 does not appreciablv fluctuate. The air enters and leaves the lubricator through a pipe 7 and a port 8 in a valve 9, Fig. 1, a second port 12 allowing oil to be delivered directly of necessary. Fig. 2 shows a modification in which the valve 9 is replaced by a valve 15 which is held off its seat by a filling-plug 14<1> and closes automatically when the plug is removed. A slot 17 in the plug releases the compression in the lubricator before the plug is entirely unscrewed.
Patent GB-1045077-A (GB)
Title: Document feeding apparatus
IPC: B65H3/08
Filed: 1963-06-25
Abstract: 1,045,077. Feeding sheets. FARRINGTON ELECTRONICS Inc. June 25, 1963 [July 9, 1962], No. 25246/63. Heading B6B. [Also in Divisions F2 and G4] Automatic character-sensing apparatus includes a reciprocating suction head for feeding a document to the reading station of said apparatus, the lower surface of the suction head having a convex curvature which corresponds to the concave upper surface of the supporting surface at the reading station. Separators; feed tables.-Sheets are separated one at a time from the top of a stack by a suction head 23. The latter is reciprocated between stops 28 and 35 by a rack-and-pinion arrangement 30, 31, to feed the leading edge of a separated sheet on to a feed table 19. The suction head has a convex lower surface 23<SP>1</SP> which conforms to the concave upper surface of the feed table, Fig. 3 (not shown). Drop-rollers; registering.-The sheet is fed step-by-step through character-sensing apparatus by an intermittently driven roller 37 and a drop-roller 40. A solenoid 41 controls the movement of the drop-roller. The shaft 38 of roller 37 is driven from a constantly driven gear 45 through a friction clutch 32 and gear 54 fast with shaft 38. The friction clutch comprises a first gear 43 loose on a shaft 44 and a second gear 46/53 fast on said shaft. The gear 46/53 is normally prevented from turning with the gear 43 by a magnetically controlled pawl 48. The pawl is periodically withdrawn from the gear 43 under the control of the charactersensing apparatus whereby the sheet is fed forwards step-by-step. The pawl is mounted on a sector-shaped plate 50, rotatably mounted on the shaft 44. The plate 50 has teeth 51 meshing with the teeth of a gear 52. The latter may be turned a small amount in either direction to rotate the roller 37 a corresponding small amount in either direction and accurately register the sheet in position. Rotation of the gear 52 is controlled by said character-sensing apparatus which produces an error signal representing the difference between the actual and required position of a line of characters.
Patent GB-209787-A (GB)
Title: Improvements in the manufacture of composite shoe heels
IPC: A43B13/34
Filed: 1922-09-19
Abstract: 209,787. Barnett, B. C. Sept. 19, 1922. Heels.-A filling-composition for a hollow metal heel 3 comprises a mixture of fifteen parts of cork dust, seven parts of sawdust, and six parts of gypsum, which is stirred with a solution of twenty-two parts of shellac in fifty parts of spirits of wine, heated in a steam-jacketed retort until the solvent evaporates and forced whilst in a plastic state into the heel, which is preferably of aluminium. The heel 3 is open at the top and bottom and may have a lip 9 having holes 10 for screws by which the heel is secured to the waist of the shoe. A metal wearing inset 13 and a tread of rubber or leather may be provided. The heel may be supported in a two-part mould when the composition is forced into it.
Patent GB-745019-A (GB)
Title: Improvements in cabinets
IPC: A47B63/00
Filed: 1953-09-14
Abstract: 745,019. Drawers. BROWN, F. C. Sept. 9, 1954 [Sept. 14, 1953], No. 25301/53. Class 52(1). An assembly of drawer runners 11 for a sheet metal cabinet is spotwelded to one or more vertical members 12, 13 the front member 12 having an offset 12A which with the runner ends forms a recess to receive the inturned flange 8 of the opening in the front wall of the cabinet. Top and bottom lugs 14A engage bent flanges 13B on the rear vertical members 13 to position the assembly.
Patent GB-518587-A (GB)
Title: Improvements relating to motion transmitting devices
IPC: F16H37/12
Filed: 1938-08-29
Abstract: 518,587. Motion transmitting devices. RENOLD & COVENTRY CHAIN CO., Ltd., and HEWARD, F. J. L. Aug. 29, 1938, No. 25315. [Class 136 (i)] [Also in Group XXIV] Relates to motion transmitting devices wherein a flexible member within a tubular, casing is adapted to exert push-and-pull, e.g., as described in Specification 339,108, [Class 80 (iii)]. With such devices, lost motion occurs and according to one aspect of the invention it is ensured that the movement at the driven end is not less than that at the driving end. A driving member, e.g., a rod 10, slides in guides 12 and is in line with a driven member 36 sliding in guides 38. These members are connected by pairs of pivoted links 40, 42 the pivot points 44 of which are guided in slots 46 inclined to the line passing through the members 10, 36. The slots are formed in members 48 which may be pivoted at 50 and have their inclinations varied by a screw 52 to vary the velocity ratio. To obtain a constant velocity ratio, the guide slots 46, Fig. 2, may be curved. Instead of the slots approaching the member 36, they may diverge from it so as to give a smaller velocity ratio and a greater mechanical advantage towards the end of the movement. In a still further modification, the guides may first converge and then diverge so as to give first an increasing velocity ratio and then an increasing mechanical advantage.
Patent GB-1518669-A (GB)
Title: Hydraulic fluid compositions
IPC: C10M169/00
Filed: 1974-06-07
Abstract: 1518669 Hydraulic fluid IMPERIAL CHEMICAL INDUSTRIES Ltd 23 May 1975 [7 June 1974] 25342/74 Heading C5F [Also in Division C2] A hydraulic fluid comprises a borate of general formula where C is a glycol residue and A is a glycol ether residue. The residues C and A may be derived from ethylene, propylene or butylene glycol, neopentyl glycol or a polyethylene or polypropylene glycol or a glycol derived from mixed ethylene oxide/propylene oxide units, the glycol ether particularly being a C 1-6  alkyl ether. The borate may comprise 5-98% by weight of the fluid which may also comprise 20-80% of a glycol mono- or di-ether; a polyglycol of molecular weight above 150; a pH control and corrosion inhibitor such as an alkali metal borate, an amine, a morpholine, mercaptobenzotriazole, benzotriazole, or a nitrite; or an antioxidant such as 2,4-dimethyl-6-tert. butylphenol, 4-methyl-2,6-di-tert. butylphenol, phenothiazine or a substituted phenylene diamine.
Patent GB-501296-A (GB)
Title: Improvements in or relating to wound packages of yarns, threads, and the like
IPC: A47F7/10
Filed: 1937-09-18
Abstract: 501,296. Displaying; figures or models. PERI-LUSTA, Ltd., and ELKS, D. P. Sept. 18, 1937, No. 25360. [Class 3 (ii)] [Also in Groups XV and XVII] A plurality of wound packages of yarns, threads or the like are assembled to resemble, in fantastic form, a human being, animal, bird, insect or the like. Fig. 1 shows an arrangement built-up on a wire-former, Fig. 2, and comprising cylindrical drums 8, 9, 10 and tubular cores 3 on which thread is wound, and a mending card 5. Other arrangements include reels of cotton or threads The yam or thread may be unwound without removing the units from the assembly. To facilitate unwinding, the units may be arranged to revolve on their support. Reference has been directed by the Comptroller to Specifications 122,100 and 206,457, [both in Class 132 (ii)].
Patent GB-803822-A (GB)
Title: Improvements in or relating to radio receivers
IPC: H01F27/00
Filed: 1955-09-05
Abstract: 803,822. Inductors. BURKE, J. D. June 28, 1956 [Sept. 5, 1955 (2); Sept. 29, 1955], Nos. 25425/55, 25426/55 and 27781/55. Class 38 (2). [Also in Group XL (c)] The Specification describes a plurality of arrangements for varying an inductance for the purpose of tuning a radio receiver. In the arrangement shown in Fig. 3 the tuning section of the receiver comprises a tapped inductor 13, 14 ... , contact segments 15, 16 ... each of which is connected to one tapping point on the inductor and a contact 19 mounted upon a rotatable shaft 3. As the shaft is rotated, the contact 19 makes contact with each segment 15, 16... in turn, tuning of the portion of the inductance selected by contact between the contact 19 and any one of the segments is effected by means of a helical core 17 attached to the shaft 3 by an arm 18 and moving within a corresponding helical former on which the inductance 13, 14 is mounted. The core 17 may be a magnetic dust core or may comprise both magnetic and non-magnetic conducting portions. The arm 18 is made flexible in a direction parallel to the shaft 3 to permit the core to progress within the former of the inductance as the shaft is rotated. In a second embodiment, Fig. 5, the tuning coils are mounted upon a turret or drum and are selected in turn as the shaft 3 is rotated, tuning within each wave range being effected by the motion of the coil relative to a mass 38 of magnetic or partly magnetic and partly conducting material as the shaft is rotated. The mass 38 may be of trough-like form to provide end portions between which the coils pass. Fig. 6 illustrates a further tuning arrangement in which a loop of wire 40 is drawn to a varying extent into a hollow cylinder 39 of high permeability material as the tuning shaft is rotated.
Patent GB-1306577-A (GB)
Title: Flow-measuring apparatus
IPC: A61B5/087
Filed: 1971-04-19
Abstract: 1306577 Measuring fluid-flow electrically SIEMENS AG 19 April 1971 [25 March 1970] 25458/71 Heading G1N Flow measuring apparatus for measuring flow of gas through a duct 3 of a respirator to or from a patient comprises a flow sensing device 2 (a resistance strain gauge) in or adjacent to the duct to provide an output signal variable in dependence upon gas flow-rate and a flow control valve 1 operable to interrupt the flow at selected instants, the device having zero-adjustment means operable in dependence upon the control valve to cause the output signal to be set to a predetermined value at each of the selected instants. The zero-adjustment means is a photo-electric cell responsive to movement of part of the valve 1 and controlling conduction of an F.E.T. 8 which earths the input to amplifier 6 when the flow goes to zero due to valve closure. Thus the capacitor 5 charges to a voltage indicative of the zero error in the previous respirotory cycle but when the transistor 8 is rendered non-conductive again, no change in charge of the capacitance occurs because the input impedance of amplifier 6 is high. Therefore the output voltage from amplifier 6 has a magnitude proportioned to the instantaneous flow-rate.
Patent GB-941841-A (GB)
Title: Improvements in or relating to dust separating means for grinding apparatus
IPC: B23Q11/00
Filed: 1961-07-14
Abstract: 941,841. Comfining dust generated in industrial processes. O. RUTHNER. July 14, 1961 [July 14, 1960], No. 25574/61. Heading F4X. [Also in Division B1] A suction casing 2 . . . 5, 11 which also serves as a dust depositing chamber has a suction air inlet 8 extending horizontally between upper and lower portions 2, 3 of the casing front and downstream of a dust generating source, e.g. a pendulum grinder 9 and a metal billet 16 supported by a work-table 15; the crosssectional area of the casing being sufficiently greater than that of the inlet 8 as to cause deposition of the coarser dust particles on the floor 11 of the casing. The latter is provided with a baffle 14 and a pair of fabric filters 12 adjacent the inlet of a suction fan 6.
Patent GB-199994-A (GB)
Title: Improvements in dust-caps for pneumatic tyre valves
IPC: B60C29/06
Filed: 1922-09-22
Abstract: 199,994. Burn, R. S. Sept. 22, 1922. Dust caps for tyre valves.-The hood member a is provided with a rigid smooth surface d at its lower end b adapted to gather and compress the resilient washer f on the rim nut e on screwing down. In the preferred form as shown the surface d is coned inwards and the washer f is an upstanding rubber or like cone.
Patent GB-704038-A (GB)
Title: Improvements in or relating to medicines containing antibiotics
IPC: A61K31/65
Filed: 1951-11-02
Abstract: A medicine for oral or parenteral administration, which is particularly effective against mycobacteria, comprises a mixture of the antibiotic oxytetracyline and the antibiotic Viomycin (R.T.M.), preferably in a proportion equivalent to 50 to 90 parts by weight of Viomycin sulphate and 50 to 10 parts by weight of oxytetracycline hydrochloride.  The oxytetracycline may be used as such or in the form of the acid salt or metal salt.  Viomycin may be in the form of the base or acid salt such as sulphate or hydrochloride. Specifications 684,417 and 687,500, [both in Group IV(b)], are referred to.
Patent GB-697887-A (GB)
Title: Improvements in or relating to facsimile telegraph systems
Inventor: MASON FREDERICK PERCIVAL
IPC: H04N1/40
Filed: 1951-11-02
Abstract: 697,887. Copying-telegraphy. CREED CO., Ltd. May 9, 1952 [Nov. 2, 1961], No. 25671/51. Class 40 (iii). [Also in Group XL (c)] In a circuit arrangement for inverting facsimile signals, the received signals, Fig. 2 (b), modulated in accordance with the tone of the copy (a), are applied through a transformer T1 and rectified in full-wave circuit X1, X2 to produce a negative voltage across resistor R3 increasing to a maximum when a white signal is received. A second full-wave rectifier circuit X3, X4 is fed via resistance-capacitance networks C1, R1 and C2, R2 which introduce a 90 degrees phase-shift, the combined output (c) across resistor R3 approximating more closely to a D.C. signal. Additional rectifying circuits may be employed. The rectified signals control the bias of a pair of normally-conducting modulating stages V1, V2 which receive the unrectified facsimile signals via condensers C3, C4 and apply an output to the recording stylus via transformer T2. The stylus signal appears as shown at (e), varying inversely with the strength of the received signal. In a modification, Fig. 4 (not shown), the alternating signal applied to the grid of the modulating stages is derived from a local oscillator. In a further modification, Fig. 1 (not shown), the modulating stage supplies a direct current to the stylus, as shown in Fig. 2 (d). The signal inversion may be effected either at the receiver or the transmitter.
Patent GB-713930-A (GB)
Title: Improvements relating to centrifugal dust collectors
IPC: B04C3/04
Filed: 1952-10-14
Abstract: 713,930. Centrifugal separators. HEINRICH, O. X. Oct. 14, 1952 [Oct. 16, 1951], No. 25700/52. Class 23 A centrifugal separator, for removing particles from gas, comprising a tube 25, whirl producing means 26 at the inlet end of the tube, and a core member 33, has the dimensions of the tube and core so chosen that with a gas velocity of 1500 cm/sec. the Reynold's Number (based on the kinematic viscosity of the gas alone), is less than 10,000 so that the flow in the separator is predominantly laminar. The invention ensures that particles below 10 microns diameter are removed from the gas. As shown the cells 12 of a multi-cell separator having inlet and outlet ducts 15, 16 are separators according to the invention. The whirl producing means are blades arranged to form tangential inlets to the cells, and the cores are plates arranged to form a cross. The cores penetrate into cleaned gas outlet tubes 28 which have divergent ends fitted with straightening blades 35. Dust discharges from the cells through slots 30 to a dust collecting chamber 20 having a screw conveyer 21 for removal of dust. Pipes 23, 27<SP>1</SP> permit the recirculation of 10-15 per cent. of the main gas flow from the chamber 20 to the inlets of the cells. Dust in the recirculated gas may be used to increase the actual viscosity of the gas and dust to ensure the flow is laminar. In a modification, Figs. 7 and 8 (not shown), the inlets of the cells are axial and the tubes are provided with slots in the vicinity of the inlet so that gas is drawn from the dust collecting chamber into the cells without external fittings.
Patent GB-1144593-A (GB)
Title: A method for the manufacture of rectangular ducts
IPC: B21C37/15
Filed: 1966-06-06
Abstract: 1,144,593. Making ventilation ducts. SVENSKA FLAKTFABRIKEN A.B. 9 June, 1966 [9 June, 1965], No. 25700/66. Heading B3A. A rectangular ventilation duct is formed by joining two metal strips (3), (4), Fig. 1 (not shown), in parallel to form a single web blank which is cut transversely and the cut-off portion folded transversely so that the joint between the strips extends around the periphery of the duct. The strips (3), (4) are longitudinally grooved by rollers (5) and their adjacent edges folded by rollers (6) into complementary S- shapes which are interengaged and folded together. The free edges of the resultant web are folded by rollers (8) to form flanges 12. The web is cut transversely (9) and the cut-off portion folded transversely, with the grooves 11 and joint 10 extending around the periphery of the duct and the longitudinal edge joined together. Adjacent ducts are joined together by shaped rails pushed over a pair of adjacent flanges. An elastic strip may be placed between the adjacent faces 12a.
Patent GB-387959-A (GB)
Title: Improvements in or relating to drying cabinets
IPC: F26B9/06
Filed: 1932-09-15
Abstract: 387,959. Drying-cabinets. BRITISH THERMOSTAT CO., Ltd., Windmill Road, Sunbury, Middlesex, and PAYNE, M., 50, Hook Road, Surbiton, Surrey. Sept. 15, 1932, No. 25716. [Class 34 (i).] Outlets for the escape of moisture-laden air are provided near the base of a drying-cabinet, and the air inlet is a tube projecting through the base of the cabinet, a heating element being disposed in or near the tube, so that an upward stream of heated air is injected into the chamber. In the form illustrated, the cabinet has a door 2 and supports 3 for the articles to be dried. The inlet tube 5 contains an electric heating element 4 so controlled by the thermostat 9 as to maintain a uniform temperature in the ascending air stream. The scoops 8 through which the used air passes to the outlets 7 may be adjusted to allow recirculation of part of the air.
Patent GB-1128686-A (GB)
Title: Improvements relating to mineral processing
Inventor: AUSTIN JAMES
IPC: C01B17/033
Filed: 1966-06-09
Abstract: 1,128,686 Extraction of S values from pyrites. WOODALL-DUCKHAM Ltd. 2 June, 1967 [9 June, 1966; 7 Nov., 1966], Nos. 25842/66 and 49749/66. Heading C1A. Sulphur values are extracted from pyrites in a two-stage process comprising heating pyrites in divided form (e.g.-20 mesh) to not more than 700‹ C., preferably 500‹ C. in an inert atmosphere containing less than about 1%, preferably 0À1% O 2  by volume, thus releasing part of the S content as elementary S and/or H 2 S; and thereafter treating the solid residue with HC1 to dissolve the iron values therein and to release further S values as H 2 S. The pyrites may contain coal, resulting in the S released being mainly H 2 S. In this case the inert atmosphere may be substantially free of water vapour. The Fe values dissolved by treatment with HCI may be recovered as FeCl 2  crystals obtained from the solution and H 2  reduction of the FeCl 2  produces Fe powder and HC1. The mother liquor obtained in the FeCl 2  crystallization process may be subjected to thermal decomposition to produce Fe 2 O 3  and HC1. The free S released in the second stage may be recovered in the molten state while part of the solid residue from this stage may be recycled to the first stage and heated together with further amount of divided pyrites. The HC1 produced with Fe powder or FeO may be recycled to the appropriate point in the process. The pyrites may be pre-treated with HCI.
Patent GB-818996-A (GB)
Title: Improvements in or relating to electrostatic precipitators
IPC: B03C3/86
Filed: 1956-08-24
Abstract: 818,996. Electrostatic precipitation. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Aug. 24, 1956 [Aug. 30, 1955], No. 25891/56 Class 39(1). In an electrostatic precipitator which comprises a plurality of spaced, parallel collector plates and ionizer wires upstream of these plates, the upstream edges of the collector plates constitute non-discharging electrodes which together with the ionizer wires form the main ionizer zone of the precipitator. As shown, alternate ones 23 of the collector plates extend closer to the ionizer wires 18 than do the remaining plates 24. Plates 23 are insulatedly supported from the casing 10 and are connected through a variable resistance 31 to ground while plates 24 are connected directly to the casing and to ground. In operation, ionization current flows between the ionizer wires, which are connected to the positive terminal of the voltage power pack 30, the collector plates and ground. A grounded, perforated metal screen may be provided upstream of the ionizer wires to provide an ionization field upstream as well as downstream of the wires. A dielectric screen may be placed between the ionizer wires and the collector plates where it becomes positively charged and forces the positive ions to take longer paths between the wires and the plates. In an alternative embodiment each of the plates 23 is connected to ground through an individual resistor, each of which can be selected to provide a voltage drop which will equalize the voltages on the plates 23.
Patent GB-719633-A (GB)
Title: Lubricating oil composition
Inventor: ERVINE WILLIAM DENIS
IPC: C10M173/00
Filed: 1951-11-06
Abstract: A soluble oil composition comprises a major proportion of mineral lubricating oil, a minor proportion of an emulsifying agent, from 0.5-25 per cent. of a chlorinated hydrocarbon or chlorinated phenol, and an alkali metal salt of benzoic, succinic or salicyclic acid. Chlorinated compounds referred to are chlorinated mineral oil fractions such as lubricating oil and kerosine; chlorinated wax such as paraffin, microcrystalline and ceresine wax; chlorinated benzene, naphthalene and phenol; and hexachlorobenzene, tetrachloronaphthalene, hexachlorobutadiene, carbon tetrachloride and pentachlorophenol.  Emulsifying agents mentioned are oil-soluble sodium petroleum sulphonates, particularly mahogany sulphonates, alkali and alkaline earth metal salts of fatty, resin and naphthenic acids and non-ionic detergents such as those described in Specification 705,056.  The metal salt specified is sodium benzoate. The mineral oil may have a small proportion, for example up to 1 per cent. of sulphur incorporated therein.  Optional ingredients referred to are isopropyl alcohol, diethylene glycol and silicones.  The compositions are compared with compositions containing conventional additives containing chlorine, chlorine and sulphur, chlorine phosphorus and sulphur, or sulphurized fatty oil. Specification 689,740 is disclaimed.  The Provisional Specification refers also to chlorinated coal tar fractions.