baber/WOPTO huggingface dataset:
Patent GB-1031195-A (GB)
Title: Compatible single sideband transmission system
IPC: H04B1/68
Filed: 1963-03-22
Abstract: 1,031,195. Amplitude modulation. STANDARD TELEPHONES & CABLES Ltd. March 22, 1963 [March 29, 1962], No. 11478/63. Heading H3R. In an S.S.B. transmitter with non-suppressed carrier, the transmitted signal is corrected to render it compatible with single or double sideband receivers. The carrier cos #t is amplitude modulated at 3 by the input signal cos #t (of the same amplitude), the S.S.B. cos (# + #)t filtered at 5 being added at 7 to the carrier to produce the signal S = cos # t + cos (# + #)t= 2 cos #t/2. cos (# + #/2)t to which a correction signal derived in a circuit 1 is added at 15. The amplitude modulation component 2/cos #t/2/ of signal S is detected at 9, the output of which is equivalent to a harmonic series 4/#. (1 +2/3 cos #t -2/15 cos 2 #t + ...) from which the D.C. component is eliminated by a capacitor C and, in an adder 11, the cos #t term is eliminated by a sample of the original modulating signal. The remaining higher harmonic terms H(#t), which are those to be eliminated at a double side-band receiver, are then multiplied in a balanced modulator 13 with the phase-modulated component cos (# + #/2)t of signal S after limiting the latter at 10, and the product subtracted from the signal S (by inverting the product at 14 and adding it to S at 15). The corrected signal transmitted S<SP>1</SP> =À(4/# 1 + 2/3cos #t. (+ cos (# + #/2)t) which is compatible. A fflter 16 may be used to eliminate higher harmonics from the correcting function H(#t) to reduce the transmitted frequency band. The sample of the original modulating signal (cos #t) for the adder 11 may be derived direct from the input 2 or by demodulation of the output of the S.S.B. filter 5 at 17. In a modification, Fig. 2 (not shown), the higher harmonic terms H(#t), derived as in Fig. 1, amplitude modulate a portion of the original carrier (cos # t) which is then additively combined with the S.S.B. filter output. This approximates to the output S<SP>1</SP> (Fig. 1).
Patent GB-114838-A (GB)
IPC: F28B1/02
Abstract: 114,838. Barbet et fils et Cie., E. March 31, 1917, [Convention date]. Concentric or jacketed straight-tube apparatus. -In tubular evaporating, condensing, or cooling apparatus, vapour flows at a high speed through annular spaces D formed by jackets placed around the tubes B through which a liquid is passed. The jackets are expanded into two inner tube-plates d, c, and project a certain distance beyond the tube-plates. The vapour is supplied by a fan or by an injector P connected by a. pipe 0 to the space between the lower tube-plates so as to draw uncondensed vapour again into circulation through the jackets.
Patent GB-935415-A (GB)
Title: Improvements in or relating to fuel cells
IPC: H01M8/08
Filed: 1962-03-26
Abstract: 935,415. Fuel cells. LEESONA CORPORATION. March 26, 1962 [April 6, 1961], No. 11516/62. Class 53. A fuel cell consuming gaseous fuel comprises a gas permeable polymer matrix impregnated with an aqueous electrolyte and thin conductive metal layers on opposed surfaces functioning as electrodes. The matrix should be hydrophilic (inherently or by treatment) and are exemplified by reconstituted cellulose or cellulose compounds, P.V.A. or P.V.C. having a pore size of 1-100 Á (preferably 1-10 Á.). The matrix may be very thin (45-240 Á). The cells operate at low temperatures and with either acid or alkaline solutions. The metal electrodes may be produced by deposition from aqueous salt solutions and may be of silver, platinum or palladium/silver.
Patent GB-213785-A (GB)
Title: Improvements in and connected with steam super-heaters for boilers
IPC: F22G7/10
Filed: 1923-04-30
Abstract: 213,785. Larrey, T., and Godard, L. April 30, 1923. Superheating-chambers heated by combustion gases.-A superheater designed to be placed in the smoke box in front of the flue tubes 3 comprises a pair of casings 7 the vertical inner faces of which are fastened by straps 8. The casing communicates with the dry pipe 6 by way of the pipes 10 and the superheated steam is supplied to the cylinders by way of the pipe 23. The casing is divided by a plate 14 held in place by stay bolt 15 with spacing sleeves 16 and provided at the top with an apertured shoulder 13 which coincides with aperture in the outer casing for the admission of the pipe 10. A second boss 19 coincides with a similar imperforate boss in the wall of the casing. The margin of the division plate is spaced from the peripheral wall of the case to permit the passage of the steam from the rear-chamber to the front. Modified forms of the division plate are described. Reference is made to Specifications 142,478 and 167,438.
Patent GB-758690-A (GB)
Title: An improved roller for belt conveyors
IPC: B65G39/073
Filed: 1954-04-23
Abstract: 758,690. Idlers for belt conveyers. FERREIRA, P. D. F. July 15, 1955 [April 23, 1954], No. 11737/54. Class 78 (1). [Also in Group VIII] A roller 1 is formed of angle irons 4 welded to end discs 3, which discs are mounted by welding upon shaft 12. The angle irons are preferably crowned, as shown.
Patent GB-128436-A (GB)
Title: Improvements in and relating to Electrolytic Cells.
IPC: C25B11/02
Filed: 1918-07-17
Abstract: 128,436. Marks, E. C. R., (Stuart, .J. T.). July 17, 1918. Cells; electrodes.-An electrode comprises a number of thin metal plates closely adjacent to each other and separated from those of a similar opposite electrode by the minimum distance compatible with avoidance of short-circuit. The active portions may abut against opposite sides of a diaphragm. One form of electrode consists of parallel strips 2, Fig. 1, the rear ends of which are bent at right-angles and fused together. To the solid back thus formed are attached crosspieces 4 which fit over supporting pins in the frame members 7 of a cell., The flanges of the frames are flush with the ends of the strips, and clamp the diaphragms between them. Another form of electrode is made by folding a single thin sheet, as shown in Fig. 3. Electrodes may also be made from gauze or a plurality of wires. The projections may number 70 per inch. The electrodes may be used for the production of oxygen and hydrogen.
Patent GB-381115-A (GB)
Title: Process for the manufacture of metallic magnesium from magnesium oxide
IPC: C22B26/22
Filed: 1932-04-25
Abstract: 381,115. Distilling magnesium. OSTERREICHISCH AMERIKANISCHE MAGNESIT AKT.-GES., Radenthein, Carinthia, Austria. April 25, 1932, No. 11804. Convention date, July 8, 1931. [Class 82 (i).] In the reduction of magnesium from its oxide by means of a carbonaceous reducing agent, the temperature in the reduction chamber is maintained sufficiently high to avoid reversal of the reaction, and the reaction products are diluted with hydrogen or like inert gas only on leaving the reduction chamber and are thereby cooled to condense the magnesium. The apparatus shown comprises an electric furnace A the outlet 3 of which is provided with a water jacket 1 and a water-cooled cylinder 2. Hydrogen is supplied by a pipe 5 to a ring 4 mounted in the cylinder 2 and issues from openings 6 in the direction of the pipe D which leads to a filter E. A small amount of diluting gas may be supplied to the furnace A through a pipe G if desired.
Patent GB-705235-A (GB)
Title: Improvements in or relating to electrical cable end connectors
Inventor: PRESTIGE HARRY THOMAS
IPC: H01R11/11
Filed: 1952-05-09
Abstract: 705,235. Wire terminals; two-part couplings. BELLING & LEE, Ltd. May 9, 1952, No. 11833/52. Class 38 (1) A cable-end connector is bent from a single blank to form a plug or a spade connector. In Figs. 1, 2 the plug pin is made up of two halves 11 made slightly resilient by bending them slightly outwardly at notches 13, 14, two serrated jaws 15 16 receiving between them a bared part' 19 of the cable end. A resilient sleeve 21 of p.v.c. is then slid from the cable over the jaws, clamping them tightly on to the bared conductor. Alternatively, a spring clip, which may be covered with insulating material, may fit over the jaws. In a spade connector (Fig. 5) the jaws 32, 33 are joined by a strip of metal 34.
Patent GB-853067-A (GB)
Title: Improvements relating to door handles
IPC: E05B1/00
Filed: 1958-04-15
Abstract: 853,067. Door handles. HOLDEN & CO. (B'HAM) Ltd., E., and HOLDEN, E. J. April 15, 1959 [April 15, 1958], No. 11885/58. Class 52(1) A rose plate is secured to a bar-type handle by means of a screw having its head arranged for interlocking relationship with the rose plate. As shown, projections 141 engage in notches 113 in nose plate 111 as the shank of the screw 14 is driven home into bar handle 10. In another form (Fig. 6, not shown) the hexagonal head of a bolt fits into a complementary recess in the rose plate.
Patent GB-1409672-A (GB)
Title: Carbon paper
IPC: B41M5/10
Filed: 1973-03-13
Abstract: 1409672 Cellulose ether dispersions IMPERIAL CHEMICAL INDUSTRIES Ltd 28 Feb 1974 [13 March 1973] 11967/73 Heading C3F [Also in Division D2] A composition used for making carbon-paper comprises an emulsion of which the continuous phase is ethyl cellulose dissolved in toluene and the discontinuous phase is carbon black dispersed with the aid of potassium linoleate in water. Castor oil, titanium dioxide and polyhydroxy-stearic acid are also present.
Patent GB-1499102-A (GB)
Title: Timing circuit
IPC: H03K5/135
Filed: 1974-03-19
Abstract: 1499102 Timing circuit M L ENG (PLYMOUTH) Ltd 18 March 1975 [19 March 1974] 12116/74 Heading H3T A timing circuit of the type in which a capacitor C t , Fig. 1, is progressively charged until the potential across it is large enough to operate a twostate threshold circuit A, is characterized in that the charging circuit is such that neither an open-circuit or a short-circuit fault in the capacitor C, can cause the two state threshold circuit A to be operated. In this sense the circuit is "fail safe". As described switches S1, S2 are operated alternately by a multivibrator thereby alternately connecting opposite plates of the capacitor C, to a reference voltage shown as earth, so that the potentials at points A, B and C vary as shown in Fig. 2 until the potential at C is sufficiently negative to operate the threshold circuit A. In the preferred embodiment, Fig. 3, the switches Sl, S2 are formed by FET's driven by a multivibrator T1, T2, the reference voltage is set by zeners ZD1, ZD2 and the threshold device is constituted by transistors T3, T4. Once the potential at the output C of a source follower falls below the reference voltage VR, the transistor pair T3, T4 switches, T4 becoming conductive and T3 non-conductive, and therafter as the point C oscillates in potential the transistor pair T3, T4 continues switching to provide an output via a push-pull stage T5, T6, a voltage doubling rectifier arrangement, and a transformer.
Patent GB-555460-A (GB)
Title: Improvements in or relating to hydraulic pumps
IPC: F04B1/08
Filed: 1942-08-28
Abstract: 555,460. Controlling reciprocating pumps. ERNST, W. Aug. 28, 1942, No. 12140. [Class 102 (i)] The delivery of a hydraulic pump is controlled by a reciprocating member which is continuously urged towards its delivery position by resilient means, and, in response to a predetermined delivery pressure, is automatically moved towards its no-delivery position by a fluid operable plunger the maximum stroke of which is adjustable, as by means of an axially movable control element. In the form shown a radial cylinder pump 1 for operating a press cylinder 9 has a control ring 15 which is pushed to the right by a spring 34 bearing at one end against a hubbed washer 24 movable longitudinally by a hand wheel 31. The other end of the spring 34 bears against the inside of a cylindrical cup 35 in engagement with the tapered end 43 of a rod 42 having a shoulder 48 and connected to the control ring 15 by threads 44 which are always in compression. The other side of the control ring 15 is threaded at 64 to receive a rod 65 which abuts against a plunger 62 abutting a smaller plunger 63. Opposite the latter is the contact piece 59 of a stroke-adjusting screw 58. The plungers 62, 63 co-operate with annular chambers 56, 57, radial passages 68, 73, longitudinal passages 70, 75, and a shallow chamber 71, the latter leading residual fluid to grooves 66 in the rod 65 and thence into the pump casing. The passages 68, 73 are connectable, separately or together, to the front or rear of the cylinder 9, and plugs, such as 72, 74 are provided whereby the pressure within the cylinder 9 may act on one or both of the effective areas of the plungers 62, 63 to move them to the left and thereby push the ring 15 to the left, the threads 64 always being in compression. A choke check 77 is placed between the pump delivery pipe 8 and the control cylinder 3. In a modification, an additional larger control plunger is employed, and the connections may be so arranged that the ring 15 may be pushed to the left at varying speeds.
Patent GB-150385-A (GB)
Title: Improvements in constructional toys for children
IPC: A63H33/10
Filed: 1919-11-12
Abstract: 150,385. Emerson, C. Nov. 12, 1919. Building - blocks. -Relates to constructional toys in which blocks representing bricks are pierced with holes for the reception of rods for locking the blocks together. According to the invention, some of the pins, which may be split pins, are formed with eyes 15, Fig. 1, which project above the top of the block so that a rod 18 can be passed through the eye to represent a railing on the top of a wall. Some of the blocks may have short pins 3, Fig. 5, permanently fixed for about half the length in the perforations 2, the projecting portion being adapted to engage in the perforations in other blocks. Half bricks, angular bricks, and others of various shapes may be used as terminal or finishing bricks for constructing posts, corner pieces, &c.
Patent GB-988721-A (GB)
Title: Web feeding system
IPC: B65H23/188
Filed: 1962-03-30
Abstract: 988,721. Feeding webs. PACKAGE MACHINERY CO. March 30, 1962 [June 28, 1961], No. 12247/62. Heading B6C. [Also in Division G3] Web W unwound from a supply roll 10 braked by an electromagnetic brake 11 passes around rollers 14, 16 to first and second tensioning rollers 18 and 24 urged into contact with the web by springs 68, 70 which apply a constant tension to the web but do not stretch it permanently. Limit switches 76 and 78 controlling a motor 50 and brake 11 respectively control the loop length around roller 24. Limit switches 82 and 80 in the path of travel of a floating roller 56 control the loop length around that roller. Feed rollers 32, 34 driven by motor 50 through an electromagnetic clutch 44 are energized by closure of switch 82 and deenergized by switch 80.
Patent GB-806714-A (GB)
Title: Improvements in or relating to pharmaceuticals
IPC: A61K9/48
Filed: 1957-04-15
Abstract: Pharmaceutical capsules containing Vitamin B12 and other pharmacologically active constituents having a deleterious effect on Vitamin B12 are characterized in that the Vitamin B12 is stabilized by being surrounded by gelatin, preferably by embedding the Vitamin B12 in the gelatin wall of the capsule.  The gelatin preferably contains 5-35 per cent of its weight of glycerine.  Examples describe the preparation of capsules by adding Vitamin B12 to the liquified gelatin mass and forming the resulting mass into capsules, all the other pharmacologically active substituents being placed into the interior of the capsule.  Specified substituents are a solution or suspension in ground nut oil containing lecithin or bees wax of Vitamins A, B1, B2, B6, C, D3 and E, nicotin-amide, calcium pantothenate, folic acid.
Patent GB-713651-A (GB)
Title: Improvements in or relating to the preparation of products having a cortisone-like activity
Inventor: CORNFORTH JOHN WARCUP
IPC: A61K36/484
Filed: 1951-05-25
Abstract: In a process wherein an aqueous alcoholic solution of a precipitate obtained by the acidification of an aqueous extract of liquorice root is contacted with a cation-exchange material, from which, after washing with an aqueous alcohol, substances having a cortisone-like activity are subsequently produced (see Group VI), the filtrate and washings from the cation exchanger are passed through an anion-exchanger, and the filtrate is evaporated at low pressure, dissolved in glacial acetic acid, and treated with potassium or ammonium acetate for the separation of potassium or ammonium glycyrrhizinate which is recrystallized.ALSO:Substances having a cortisone-like activity are obtained by a process comprising contacting a cation exchange material with an aqueous alcoholic solution of the precipitate obtained by acidification of an aqueous extract of liquorice root, washing the exchange material with an aqueous alcohol, and eluting the absorbed material with an aqueous alcoholic solution of an alkali, e.g. ammonia.  On evaporation, a brittle resin (fraction A) results.  (i) This is dissolved in water, a water-soluble alkaline earth salt, e.g. barium chloride, added, the inactive precipitate removed, and the supernatant liquid evaporated at low pressure to give an orange resin (fraction B).  (ii) Alternatively fraction A is dissolved in water and treated with lead acetate solution, when the greater part of the active factor is precipitated.  This is taken up by a dilute solution of ammonium sulphate to which a small amount of ammonia has been added, and the lead sulphate separated.  Operation (ii) may be applied to the liquid from the barium chloride treatment of (i) above.  (iii) In a third method, the eluate from the cation exchange column is concentrated, acidified to pH2, and the dark precipitate is removed.  The liquid is decolorized by charcoal, neutralized and evaporated at low pressure to a light yellow gum (fraction C).  An aqueous extract of this fraction may be extracted with butanol, whereby activity is concentrated in the butanol extracts.  The filtrate and washings from the cation exchanger may be passed through an anion-exchanger, and the filtrate evaporated at low pressure, dissolved in glacial acetic acid, and treated with potassium or ammonium acetate for the separation of potassium or ammonium glycyrrhizinate, which is recrystallized.
Patent GB-690526-A (GB)
Title: Improvements in or relating to a substructure for a mast
Inventor: WOOLSLAYER HOMER JOSEPH
IPC: E21B15/00
Filed: 1951-05-28
Abstract: 690,526. Raising derrick masts. MOORE CORPORATION, L. C. May 28, 1951. No. 12448/51. Class 78 (iv). The -feet 18 (Fig. 2) of a derrick mast E assembled on a temporary support 17 are guided into engagement with shoes 10 on the substructure illustrated by a pair of parallel arms 20 pivoted to brackets 21 on the side frames A and B (Fig. 1) of the substructure and to brackets 23 on the front legs 16 of the mast when the feet are raised by a sling 24 which passes over a gin pole D. The arms 20 are then disconnected from the mast and are bolted to brackets 30 on a frame C mounted transversely on the tops of the side frames A and B and serving, when the mast has been raised by a line 26 which extends from the draw-works to the crown block, to secure a pipe setback support (not shown) mounted immediately in front of it on the side frames. The rotary table (not shown) is mounted on the frame C and is thus sufficiently high to leave room beneath for equipment for sealing the well casing should high pressure gas or liquid zones be encountered. The side frames A and B are detachably joined by cross members 1 forming a deck at such a height that equipment may readily be slid onto it from the platform of a. lorry. The shoes 10 also support the front legs 12 of the gin pole the longer rear legs of which are carried by shoes 11 and are reinforced by braces 14.
Patent GB-1408824-A (GB)
Title: Burner
IPC: F23D14/00
Filed: 1973-03-15
Abstract: 1408824 Burners COMPAGNIE D'ETUDES ET DE PARTICIPATIONS INDUSTRIELLES 15 March 1973 [16 March 1972] 12509/73 Heading F4T A burner comprises at least two injectors 1, 2, Fig. 1, of different injection opening crosssection to one another and opening into a combustion chamber 3 and for each injector a respective mixing/measuring valve 23, 24, Fig. 4 for receiving comburent gas and fuel gas, each valve being upstream of the relevant injector which is thereby supplied with a fuel/comburent mixture, and automatic means arranged so that, during use of the burner when the injection speed of gas mixture into chamber 3 is reduced, before the speed drops below a value at which flashback is likely to occur, the injector with the larger or largest injection opening is automatically cut out of service. A furnace heating burner has a cylindrical ceramic combustion chamber 8 inside a square-section housing 7 with channels (9), Fig. 2 (not shown), defined therebetween for supplying dilution gas, e.g. air, from a chamber 10, Fig. 1 into a dilution chamber 4, the outlet of chamber 3 having a throat 11 so that the combustion products act to inject such products mixed with the dilution gas into the furnace via opening 6, the injector action also causing some gas from the furnace to be withdrawn via channels 12 and passed back via opening 6. A plurality of such burners, Fig. 4, are supplied with comburent gas via a pipe 19, motor driven valve 20, intermediate valves 25, 26, and mixing/  measuring valves 23, 24 whereat fuel gas is mixed therewith after passing via valves 27, 28. If the gas mixture injection speed falls below a critical value as sensed by pressure gauges 17, 18, the fuel gas valve 27 supplying the larger injectors 1 closes but valve 25 remains open for a time determined by a timer relay in order that the gaseous mixture remaining in pipe 15 after closure of valve 27 shall not explode. If more heat is subsequently required valve 25 opens and as soon as gauge 17 senses the flow speed to be above the critical value valve 27 opens. If, when injectors 1 are out of service, the flow speed out of injectors 2 falls below said critical value, valve 28 also closes and subsequently the valve 26 is closed without any flashback arising. The mixing/measuring valves 23, 24 maintain a constant fuel/comburent ratio with changes in required heat output. The injectors 1, 2 need not be coaxial and each burner may have more than two injectors of different crosssections to one another.
Patent GB-254062-A (GB)
Title: Improvements in confection packages
IPC: B65D75/52
Filed: 1925-05-15
Abstract: 254,062. Marrks, E. C. R., (Wrigley Jun. Co., W.). May 15, 1925. Packing confectionery. - Tablets of confectionery are packed face to face in a wrapper B, the material of the wrapper being depressed at b into the spaces separating the edges of the tablets. The wrappers may be of paraffin paper and the indentations may be formed by passing the packages through heated dies, and in such a manner that the tablets are secured against displacement by the adhesion of the wrapper to their edges.
Patent GB-552432-A (GB)
Title: Improvements in or relating to electric insulating bodies
IPC: H01B3/48
Filed: 1941-10-03
Abstract: 552,432. Synthetic resins. STANDARD TELEPHONES & CABLES, Ltd., and WEBB, J. K. Oct. 3, 1941, No. 12801. [Class 2 (iii)] [Also in Group XXXV] A former for an inductance or transformer coil has a superficial layer formed of laminations of acetylated paper or other fibrous material impregnated with a synthetic resin. The paper may be impregnated with monostyrene which is then polymerized and it may then be coated with a lacquer containing polystyrene. The impregnant may also include a plasticizer, e.g. 8 per cent. ethyl oleate and 2 per cent. 1, 2, 3, 4-tetrahydronaphthalene. Specifications 545,707, [Group XXXV], 549,043, [Group XXXVI], and 552,433 are referred to.