baber/WOPTO huggingface dataset:
Patent GB-1284509-A (GB)
Title: Method and apparatus for vacuum welding of plastics envelopes
Inventor: GIRAUDI GIORGIO
IPC: B65B31/02
Filed: 1971-01-14
Abstract: 1284509 Seaming edges W R GRACE & CO 14 Jan 1971 1962/71 Heading B5K [Also in Division B8] In an apparatus for sealing a thermo-weldable plastics envelope H containing a product K the package HK is placed on a table 10 with the edges H 1 , H 2  to be welded together overlying welding and clamping bars 12, 50 fixed respectively to the table, and a bell 34 is lowered over the package HK to form a hermetically sealed closed chamber L, the bell, carrying complementary movable welding and clamping bars 15, 36 respectively. When the bell is in its lowered position spring-loaded pads 44 in the clamping bar 36 clamp, the envelope edges H 1 , H 2  at spaced intervals to the upper face 46 of the corresponding bar 50 so that openings between the edges H 1 , H 2  are formed in register with a series of profiled grooves 48 in the upper face 46 of the bar 50 between the areas contacted by the pads 44. After the edges H 1 , H 2  have been partially clamped by the pads 44 and clamping bar 50 the chamber L is evacuated through a valve controlled pipe (M), (Fig. 6, not shown), the space 26 above a movable welding bar piston 20 in a cylinder 22 also being evacuated due to the setting of a three-way valve 28, Fig. 1, to maintain the welding bar in its withdrawn position while the envelope H is being evacuated through the openings between the edges H 1 , H 2 . Upon the attainment of sufficient vacuum to evacuate the envelope H the valve 28 is operated to disconnect the chambers L and 26 and vent the latter to atmosphere so that the welding bar 14 is lowered, against the action of a spring 24 on to the fixed bar 12 the electrode 16 of which is connected to an electric power source for welding. After the welding the valve 28 is again operated to reconnect the chambers L and 26 allowing the spring 24 to withdraw the welding bar 14. Atmospheric pressure is then introduced into the chamber L by passing air through a valve controlled-channel 52 in the integral block for the fixed clamping and welding bars 50, 12 the air passing through a series of nozzles 54 and on to the welded edges H 1 , H 2  and welding bar 50 to cool and detach them from the fixed welding bar 12. Finally the bell 34 is raised to lift the pads 44 and allow the package HK to be removed from the table 10. The pads 44 of the clamping bar 36 are carried by spring-loaded plungers 38 contained in a series of holes in the bar, and the electrode 16 is coated with a film of P.T.F.E. In a modification, Fig. 3, not shown, a pair of auxiliary clamping bars (C) are located between the clamping and welding bars 36, 50 and 14, 12 respectively, the movable bar (60) of the clamping bars (C) being actuated during, or immediately before, the welding of the edges H 1 , H 2 .
Patent GB-138328-A (GB)
Title: Manufacture of glycerol from sugar
IPC: C12P7/20
Filed: 1920-01-21
Abstract: In obtaining glycerine by fermentation of sugars in presence of a substance of alkaline reaction as described in the parent Specification, the alkaline substance used is a sulphite, such as normal sodium sulphite, preferably with a hydrosulphite or sulphoxylate or other sulphur-acid salt that is a strong reducing agent.  Materials producing a sulphite may be used.
Patent GB-1215853-A (GB)
Title: Continuous casting wheel with improved cooling arrangement
Inventor: PROPERZI ILARIO
IPC: B22D11/06
Filed: 1968-01-12
Abstract: 1,215,853. Continuous casting. I. PROPERZI. 12 Jan., 1968 [21 Oct., 1967], No. 1974/68. Heading B3F. In a wheel-and-band type of casting machine, the groove mould 20 is formed by a ring, e.g. of copper, of the cross-section shown, secured to a wheel disc 16 by clamping of its flanges 34, 35 between rings 36, 37 and the disc 16 and an extension ring 29 bolted to the disc, so that as the mould is heated by the melt the mould can expand by flexible portions of the flanges 34, 35 bending out temporarily as indicated at 40, 41 and contract again to maintain contact with the metal as it cools and solidifies. Water is sprayed on to the band 7 and on to the ring 20 through slits 31 in the extension ring 29. The position of the filling nozzle 3 may be adjusted as described in Specification 1,193,772.
Patent GB-774930-A (GB)
Title: Improvements in dry gas meters
Inventor: BROOKES GEORGE
IPC: G01F3/22
Filed: 1955-01-24
Abstract: 774,930. Gas meters. METERS, Ltd. Dec. 23, 1955 (Jan. 24, 1955], No. 2027/55. Class 54. A dry gas meter comprises two units a, beach containing diaphragm chambers c, d with a flag rod e coupled to a pair of diaphragms i, j and extending through the space k between the diaphragms which is under gas outlet pressure, the outer sides only of the diaphragms being placed alternately under gas. inlet pressure by the gas valves y. The diaphragms, each of which has a hole w to provide a gas-way between the chambers c, d and the valves y, form packings between outer members t, u and an intermediate member v. Brackets o, p are secured to the metal centre-piece q of each diaphragm and connected by pivot pins r to an arm s on each flag rod. A branch m communicates with the gas outlet of the meter. The meter may be made of sheet steel, plastic mouldings or die castings and the two members u may be formed in one piece.
Patent GB-765685-A (GB)
Title: Improvements in electric phase discriminating arrangements
Inventor: EARP CHARLES WILLIAM
IPC: G01R25/00
Filed: 1954-01-22
Abstract: 765,685. Phase discriminators. STANDARD TELEPHONES & CABLES, Ltd. Jan. 14, 1955 [Jan. 22, 1954], No. 2028/54. Class 40(5) In a phase discriminator for a carrier phase modulated between Œ 180 degrees the signals carrier and a stable reference carrier of reversed phase relative to the middle phase of the signal are both converted at 3, 4 to short pulses of corresponding phase and frequency, e.g. by squaring, differentiating and taking off only positive going pulses, which are then used to trigger the opposite conditions of stability a bi-stable valve circuit 5, so that the output of one valve is a train of constant amplitude pulses, of duration proportional to the phase difference, which is then integrated to produce a correspondingly proportional D.C. output current. Further, a small portion of the reference wave of reversed phase is added by an attenuator 8. to the phase modulated wave before conversion to ensure that the output assumes the valve corresponding to zero modulation in the event of non- receipt of the signal wave. Specification 594,530 [Group XL] is referred to.
Patent GB-648752-A (GB)
Title: Improvements in and relating to a method and apparatus for the recovery of phenols from aqueous liquors
IPC: C07C37/00
Filed: 1947-01-22
Abstract: Phenols are recovered by solvent extraction from the aqueous liquors of a coal distillation or carbonizing process using butyl acetate as solvent, the aqueous liquor being passed downwardly in counter-current to the butyl acetate passing upwardly in an extraction column provided with a series of distributer plates, each plate consisting of a frusto-conical fitting secured at the base to the inner peripheral wall of the column and supporting on vertical metal strips a cylindrical part covered by a flat perforated plate. The butyl acetate solution is then fractionated to separate the phenols.  The phenols specified are phenol, m- and p-cresol, and dihydric phenols.  The final fractionation is preferably performed in vacuo in two stages.  The butyl acetate is used in a ratio by volume of about 1 volume of solvent to 8 of aqueous liquor, and preferably in a ratio of not less than 1 to 10.  Specifications 512,723 and 520,198 are referred to.
Patent GB-929524-A (GB)
Title: Improvements relating to holders for specimens in electron microscopes
Inventor: LUCAS JEFFREY HARVEY
IPC: H01J37/20
Filed: 1961-01-18
Abstract: 929,524. Electron microscopes. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Jan. 18, 1962 [Jan. 18, 1961], No. 2084/61. Class 39 (1). A specimen holder for an electron microscope comprises two coaxial co-extensive cylindrical conductive supports 1, 2, as shown provided with extensions carrying jaws 3, 4 by which the specimen support 6 is clamped in position; the specimen is heated by passing current between the conductors through the specimen support. The conductors 1, 2 are insulated from each other by a cylindrical bushing closely fitting the inner conductor 2. The jaws 3, 4 are held in position by a locking-ring 5 of insulating material. Preferably the jaws 3, 4 and locking- ring 5 are made in one piece by mounting the jaws in a cold setting resin and machining away surplus resin to leave only the ring 5 of resin.
Patent GB-1311261-A (GB)
Title: Bicyclotridecyl ethers
IPC: C07C67/00
Filed: 1971-01-15
Abstract: 1311261 Bicyclotridecylethers L GIVAUDAN & CIE SA 15 Jan 1971 [15 Jan 1970] 2098/71 Heading C2C [Also in Division A5] The invention comprises compounds of the formula where R is alkyl of 1-4 carbon atoms and R 1  and R 2  are H, methyl or ethyl. The compounds may be prepared by reacting compounds of the formula with methylene iodide in the presence of a zinc-copper alloy, with bishalomethyl zinc, with ethylidene iodide and diethyl zinc or with ethereal diazoethane in the presence of Cu<SP>++</SP> or by reacting compounds of the formula where X is halogen with catalytically activated hydrogen, nascent hydrogen or with lithiumdialkyl-copper.
Patent GB-964010-A (GB)
Title: A directional radiant energy transducer system
Inventor: WATTS CHESTER BURLEIGH
IPC: H01Q25/02
Filed: 1961-01-18
Abstract: 964,010. Audible signalling apparatus. SCANWELL LABORATORIES Inc. Jan. 18, 1961, No. 2106/61. Heading G4F. [Also in Division H4] An array of radio aerials or electro-acoustic transducers having a cardioid array directivity pattern 34, Fig. 4, over a wide band of frequencies comprises two elements spaced apart a distance S small compared with the wavelength À# and fed simultaneously (1) in phase, i.e. "aiding" mode, and (2) in anti-phase, i.e. opposing or "bucking" mode, the aiding and opposing currents being in phase quadrature and this amplitude ratio being proportional to frequency so that the array directivity characteristics of the aiding and opposing modes comprise circular and figure-eight patterns 32, and 30, Fig. 3, which combine to give the required cardioid pattern 34, Fig. 4. The invention is described in detail only as applied to a radio system in which the two elements comprise coplanar loop aerials; as shown in Fig. 2 the two elements are coupled to unbalanced guide terminals 1 of a 1 : 1 transformer 18 and equal resistance 11 and 12.
Patent GB-823204-A (GB)
Title: Improvements in or relating to roller applicators for paint and like materials
Inventor: POWELL CHARLES FREDERICK NELSO
IPC: B65H19/10
Filed: 1955-01-24
Abstract: <PICT:0823204/III/1> <PICT:0823204/III/2> A single-roller applicator for paint and the like comprises a closed cylinder 1 having ends 2 each provided with a boss 3 having a recess 4, and a supporting structure comprising arms 6, each having a stub axle 7 which is adapted to co-operate with a recess 4 to form a bearing; a tie-rod 8 extends between the arms 6, and has adjustable means, such as a wing-nut 8, whereby the cylinder may be disengaged from the supporting structure, or the bearing means brought into co-operating relationship.  The arms 6 may be resilient, or one or both of them may be hinged.  A guard may be provided to protect the user from dripping paint.  The cylinder 1 may be provided with a corrugated surface, for use on corrugated sheet material.
Patent GB-712813-A (GB)
Title: Improvements in or relating to the sweetening of hydrocarbon oils
IPC: C10G19/02
Filed: 1950-01-27
Abstract: Petroleum hydrocarbon fractions are refined by treating with an alkali metal hydroxide solution to remove hydrogen sulphide and phenolic bodies, and then treating with a weaker aqueous solution of an alkali metal hydroxide containing an extract obtained by treating a petroleum hydrocarbon fraction with a 0.7-7 per cent. by weight aqueous solution of an alkali metal hydroxide.  This extract contains aliphatic acids and substituted phenols, such as propyl, butyl and amyl phenols, for example p-tert butyl-m-cresol, p-tert amyl phenol, p-tert butyl-m-ethyl phenol and carvacrol. The extract is preferably obtained from thermally cracked petroleum fractions of 400-700 DEG C. boiling range.  Aromatic mercaptans, such as dimethyl, ethyl and propyl thiophenols, for example thiophenol, p-thiocresol, o-thiocresel, p-ethyl thiophenol and 1-thio-2, 4 methyl benzene may be added to the extract.  The petroleum oils treated may be thermally or catalytically cracked oils and are preferably of boiling range below 700 DEG  F.
Patent GB-1204024-A (GB)
Title: Capacitor charging circuits
IPC: H03K3/57
Filed: 1968-10-25
Abstract: 1,204,024. Supply circuits for demagnetizing apparatus. RFL INDUSTRIES Inc. 25 Oct., 1968 [12 July, 1968], No. 2289/70. Divided out of 1,204,023. Heading H2H. The description is identical with that of Specification 1,204,023, but the claims are directed to the capacitor charging circuits.
Patent GB-994303-A (GB)
Title: Improvements in and relating to apparatus for photographic reproduction
Inventor: HALDEN JOSEPH GERALD BROCTON
IPC: G03B27/14
Filed: 1962-01-22
Abstract: 994,303. Cutting webs. OZALID CO. Ltd. Jan. 22, 1962, No. 2301/62. Addition to 895,945. Heading B4B. [Also in Divisions B6 and G2] In a photo-copying apparatus (Division G2) as described in the parent Specification, sensitized material is fed from a roll 101 by spring-pressed feed rollers 107 towards a transverse guillotine 109 and a slitting apparatus 110. Photo-electric cells, not shown, are located along feed path 111 at standard sheet lengths from guillotine 109 which is actuated when a selected cell detects the leading edge of the sheet material, the drive to the feed rollers 107 being interrupted during actuation of the guillotine. A selector switch, not shown, permits the selection of a photo-electric cell appropriate to the required length of a cut sheet. Alternatively, the position of a single photo-electric cell along the feed path may be varied.
Patent GB-681139-A (GB)
Title: An improved hydraulic drive
IPC: F04B43/073
Filed: 1951-01-31
Abstract: 681,139. Diaphragm pumps. MONOYER, M., and ATELIERS DE CONSTRUCTION D'ENSIVAL SOC. ANON. Jan. 31, 1951 [Feb. 22, 1950], No. 2404/51. Class 102 (i) [Also in Group XXIX] A pumping installation comprises a pressuregenerator in communication with two ducts for fluid connected to a distributer for creating an alternating pressure on one face of a diaphragm, the other face of which is a working surface. Fluid is drawn by a pump 2 through the duct 3 and distributer 6 from the space 9, drawing the diaphragm 8 to the position 8<SP>1</SP> in which it causes a flow of fluid past a valve 12 into the compartment 10. Fluid is then supplied by the pump 2 through the duct 4 and distributer 6 to the compartment 9 to force the diaphragm to the position 8" and thus expel the fluid in compartment 10 past the valve 11. The two compartments may be separated by two diaphragms which are themselves separated by a space accommodating a liquid which may be examined through a window. A number of diaphragm systems, each with its own distributer, may be connected in parallel between the suction and pressure ducts. In the embodiment shown in Fig. 4 a container 26, at the end of a duct 26', has mounted thereon a centrifugal pump 27 driven by a motor 28 which also drives a rotary distributer 29 which sends the liquid, drawn in by the pump 27, into the compartments 30 of a series of diaphragm systems 31 surrounding the distributer. The diaphragm systems are connected by a circular duct 32 for drawing in the fluid to be conveyed and by a duct 33 for expelling this fluid.
Patent GB-403821-A (GB)
Title: Improvements in or relating to solid fuel heating apparatus
IPC: F24H9/20
Filed: 1933-01-25
Abstract: 403,821. Boiler &c. furnaces. VANDEVELDE, A., 25, Avenue Jacques Sermon, Brussels. Jan. 25, 1933, No. 2422. Convention date, Dec. 10, 1932. Addition to 403,819. [Class 51 (i).] Air supply, regulating; stoking; tuyÚres.- In a furnace according to the parent Specification, in which small coal is fed continuously to a trough 3‹ having inclined side walls, and is there burnt by the aid of primary air supplied under pressure by water-cooled nozzles which direct the air downwardly through the fuel, the air and fuel are fed in the same direction relative to the zones in which slag is formed, in order to avoid separation of the air from the unburnt fuel by the slag. In the form shown in Fig. 1, the air-supply takes place through a slot 8‹ in the underside of a water-cooled conduit 8‹‹ arranged directly below the fuel-supply nozzle 17 and extending along the trough. As in the parent Specification, the motor driving the air supply fan is switched on and off by the action of a thermostat 20. Secondary air may be supplied through a gap around the upper edge of the trough. Figs. 3 and 4 show a modified form of the air supply fitting, in which air is supplied from a slot in the lower part of a tube 29 and distributed through two slots 8‹ formed between water-tubes 30, 31.
Patent GB-548966-A (GB)
Title: A method of and apparatus for the manufacture of staybolts
IPC: B23P13/00
Filed: 1941-02-24
Abstract: 548,966. Coating metals; case hardening; bolts. FLANNERY BOLT CO. Feb. 24, 1941, No. 2469. Convention date, March 8, 1940. [Classes 72 and 82 (ii)] [Also in Group XXV] A hollow stay bolt is provided on its interior with a hot-coated lining of low melting point metal such as lead or lead alloy and the head of the bolt is carburized, the latter operation preferably taking place simultaneously with the interior coating. A protective coating, e.g. of copper may be deposited electrically on the lining. Stay bolts A, Fig. 4, are arranged in rows in a rack 29, comprising an elongated shallow pan 30 in which is set a trough-like structure 31 within which are arranged inclined guides or plates 32 against which the bolts rest. The interiors of the bolts are filled with a liquid flux C such as zinc chloride solution, from the nozzle 36 of a pipe 35 connected by a valve 34 to a reservoir 33, A slug D of the coating metal is dropped into each bolt and then a rod E with a small weight e at its upper end is fitted into each bolt. The bolts are then fitted in cradles in a carrier 18, Fig. 4, which is at station 20, when they are given an initial heating sufficient to melt the coating metal. As the slugs melt, the rods E exerting a pressure on the molten metal force the latter up round the entire length of the rods. The carrier 18 is then transferred by the arm 16 of a hydraulic crane 4 to a preheating furnace 21, the carrier 18 which has been at the cyaniding or case hardening station 22 being returned to the station 20. While one set of bolts are being preheated at station 21, another set are being treated in the case hardening pot 27 in the cavity 26 at the station 22. Then the set of bolts preheated are removed by the crane and deposited in the pot 27, the last set of bolts being transferred to the furnace 23 at the station 20. The bolts are then removed from the rack 18, the rods E removed, the bolts upturned to remove excess coating metal and then quenched in the tank 28. The interior of the treated bolts may now be coated with copper electrolytically.
Patent GB-524226-A (GB)
Title: Improvements in or relating to supply circuits for cathode ray tubes
IPC: H04N3/26
Filed: 1939-01-24
Abstract: 524,226. Supply systems for cathode-ray tubes converting. KOLSTER-BRANDES, Ltd., and SHANNON, D. S. B. Jan. 24, 1939, No. 2483. [Classes 38 (ii) and 38 (iv)] In a supply arrangement for a cathode-ray tube the positive end of the H.T. supply to the tube and the negative end of the supply to the time-base generator are earthed and the final anode of the tube is connected to the positive end of the supply to the time-base. In the Fig. the positive terminal of the supply circuit for the electrodes A2, A3 &c. comprising mains transformer T1, thermionic rectifier V1, smoothing network L1, C1, C2 and potentiometer R1, R2, R3, R4, is earthed, together with the negative terminal of the supply circuit for the time-base generator, comprising mains transformer T2, thermionic rectifier V2 and smoothing network L2, C3, C4. The anode A1 of the tube is then connected to the positive terminal of the timebase supply. The time-base generator may be a relaxation oscillator followed by an amplifier.
Patent GB-161005-A (GB)
Title: Improvements in road scarifiers
IPC: E01C23/12
Filed: 1920-01-27
Abstract: 161,005. Price, F. C. Jan. 27, 1920. Scarifiers.-Relates to scarifiers of the kind attached to a road roller or locomotive, in which the tine-holder is carried on a frame adjustable in vertical guides to regulate the depth of the cut. According to the invention, the tine-holder is pivoted to the frame so as to be angularly displaceable against the action of springs, to render the tines resilient. In the form shown, the tines are mounted in a holder e pivoted at d to a frame b displaceable vertically in a frame a by rack gearing c operated from a hand-wheel. The holder e is adjustably supported by links g and its angular movements are cushioned by springs f. A resilient block j (or a. spring device as described in Specification 113,487) may be interposed between the rack c and the frame b. The scarifier frame a is supported against the tender plate by a metal thrust-block s faced with wood t, and is connected to the road wheel by a drawbar i having spring-loaded adjusting means at the road-wheel end, and also, in a modification, adjusting means at the scarifier end, to take up wear.
Patent GB-289917-A (GB)
Title: A vacuum cask, can, tin, bottle or receptacle to keep fruit, fish, eggs, milk and the like for a long period
IPC: B65D51/16
Filed: 1927-01-28
Abstract: 289,917. Jassawalla, K. S. Jan. 28, 1927. No Patent granted (Sealing fee not paid). Vacuum closures; detachable stoppers secured by clamping devices or clips. - Relates to vacuum covers for jars, tins, bottles casks, and other receptacles for use in preserving fruit, fish, eggs, milk, &c., and comprises a lid B provided with leather, rubber &c. packing D and removable clamps C, A top K is screwed into the lid, which is opened during the heating of the contents of the receptacle to provide an exhaust, but which is closed immediately the heating is stopped. Alternatively a grooved bolt or ball valve may be provided as an exhaust, the bolt being screwed in beyond the grooves when beating is discontinued. A cap like device I may be provided over the exhaust valve. In a modification a plain disc and resilient packing ring are employed and secured by the clamps C. This construction is said to be especially applicable to milk bottles in which the milk is boiled. Specification 7713/15 is referred to.
Patent GB-235107-A (GB)
Title: Improvements in transmission gear for motor vehicles
IPC: F16H61/02
Filed: 1925-01-28
Abstract: 235,107. Gould, E. J. Jan. 28, 1925. Variable-speed epicyclic gearing.-Comprises an auxiliary epicyclic two-speed gear employing bevel gearing and combined with differential gearing in the housing of a motor vehicle. The driving-shaft 25 drives through bevel gearing 23 a casing 20 enclosing two-speed gear 16 and differential gearing 12 driving the axle-shafts 4, 5. The casing 20 is fixed to one sun pinion 18 of the speed gear and carries a clutch member 21. A sliding clutch member 19 on a sleeve 17<1> of the other sun pinion 17 can engage either (1) the clutch 21 to lock the gear so that the planet-carrier 15 is driven direct by the casing 20, or (2) a fixed plate 31; the planet-carrier being then driven at a reduced speed. The planet-carrier 15 is connected to the differential planetcarrier 10 by a member 11. The clutch 19 is controlled by a fork-arm 36 normally pushed to the direct-drive position by a spring 40. In modified controlling-means shown in Figs. 5 and 6 the fork-arm 53 has one pointed face which can engage either of two notches in a spring-pressed block 59, so that the gear tends to remain in either of its two gear positions and will not stay in neutral.