baber/WOPTO huggingface dataset:
Patent GB-1531459-A (GB)
Title: Preparation of solutions of a basic aluminium compound and their use in water treatment
IPC: C01F7/786
Filed: 1975-04-05
Abstract: 1531459 Solutions of basic aluminium compounds; water treatment LAPORTE INDUSTRIES Ltd 22 March 1976 [5 April 1975] 14038/75 Headings C1A and C1C An aqueous solution of a phosphate-containing basic aluminium compound is prepared by: (a) reacting aluminium sulphate solution with phosphoric acid at elevated temperature; (b) introducing chloride by the addition of hydrochloric acid or calcium chloride; (c) basifying by the addition of calcium oxide, hydroxide or carbonate in order to effect preferential precipitation of calcium sulphate; steps (b) and (c) being conducted at a temperature of above 60 C., and thereafter: (d) causing or permitting the solution to cool quickly to below 60 C. The chloride is preferably introduced prior to or at the same time as the calcium carbonate, oxide or hydroxide. The solution, optionally diluted, may be used for water treatment, especially for dewatering sewage sludge (Example 3).
Patent GB-220988-A (GB)
Title: Improvements in connection with trawl nets
IPC: A01K73/045
Filed: 1923-05-28
Abstract: 220,988. Rayton, T. S. May 28, 1923. Trawling-gear.-A trawl net is provided with the usual weighted otterboards e<1> and with two or more buoyant boards a connected to the lower boards by stays d<2> or other means, and to the headline of the net by lines c<1>, and towed in line with the lower boards. The upper boards may be provided with an air tube c or other inflatable device fitted with a valve for inflation, enclosed in a space b. Alternatively the buoyant otterboards may be formed of thin plates with air spaces, or the spaces may be filled with kapok, or the boards may have convex sides and have vanes to compensate for the curvature. The number and disposition of the upper otter boards may be varied.
Patent GB-686034-A (GB)
Title: Demodulators for frequency-modulated oscillations
IPC: H03D3/08
Filed: 1950-06-06
Abstract: 686,034. Frequency modulation. PHILIPS ELECTRICAL INDUSTRIES, Ltd. June 6, 1950 [June 9, 1949], No. 14090/50. Class 40 (v). In a frequency-modulation receiver, the demodulator is of the phasing type with two circuits 2, 3, both tuned to the central input frequency and coupled inductively and by a condenser 9. This results in the production at the opposite leads 5, 6 from the tuned circuit 3 of two H.F. waves amplitude-modulated in opposite phase. The wave at lead 5 is rectified in the detector 7 and produces a wave a, Fig. 4, of modulation frequency across the condenser 9, which has one terminal earthed through a load resistance 10. The H.F. wave b at lead 6 is superposed on the low-frequency wave a on the condenser 9 and is fed through a transformer primary coil 10<SP>1</SP>, a diode 14, and a negative bias source 15 to earth. The diode passes current only when its anode is positive or is less negative than the bias voltage 15, and this current energizes the secondary coil which is in series with a second detector 8 and a condensershunted load resistance 11, 12. The demodulated signal is taken off at the terminal 20, and, if desired, the D.C. component may be neutralized by a source 16. The bias 15 may be supplied from the automatic gain control voltage, or may be derived through a smoothing circuit from the voltage across the resistance 10. The transformer 101 may be replaced by an inductance or a tuned circuit. The circuit enables all the cathodes to be earthed, thus eliminating hum voltages arising from the heater supply.
Patent GB-496222-A (GB)
Title: Improvements in or relating to resilient or suspension devices
IPC: F16F1/40
Filed: 1937-05-22
Abstract: 496,222. Resilient mountings. GOLDSCHMIDT, M. May 22, 1937, No. 14280. Convention date, May 23, 1936. [Class 108 (iii)] A resilient suspension device comprises metal parts 2, 3 each in the form of a continuous helix, the interspaces between the convolutions of the parts being wholly or partly filled by rubber 5 vulcanized thereto. The parts are connected, for example, to the journal 1 of an aircraft engine and the frame 4 of the aircraft relative axial movements of which are damped by rapidly-increasing resistance of the rubber and relative radial and torsional movements by an initial slight resistance followed by a rapidly-increasing resistance. The convolutions are spaced by coiled metal strips 6, 8 which contain rubber inserts 12, 13 and are clamped in position by sprung-in rings 9 or by screwed flanges. The edges of the convolutions are covered with rubber 10, 11. The Specification as open to inspection under Sect. 91 comprises also constructions in which the helical parts are replaced (a) by conical discs, and (b) by discs having annular curved depressions. This subject-matter does not appear in the Specification as accepted.
Patent GB-569512-A (GB)
Title: Improvements relating to hinged doors, windows, flaps and other analogous pivotally mounted members
IPC: E05D15/50
Filed: 1943-09-01
Abstract: 569,512. Doors, windows, and like hinged articles. HOSKINS & SEWELL, Ltd., and COLEMAN, L. F. Sept. 1, 1943, No. 14294. [Class 20 (iii)] [Also in Group XXV] Doors, windows and like hinged or pivoted articles of the kind which may be opened by pivoting about either of two opposite edges and having means to prevent withdrawal of the pivots when the door &c. is opened are provided with actuating means within the hollow body of the door &c. consisting of two eccentrics s and links t. When one pair of pivots is withdrawn actuation of the others is prevented by one of two sliding rods u moved by a link t and pins w and provided with a flat y which engages a flat on the eccentric boss. An arc-shaped recess 2 on the rod u permits rotation when the bolts on the opposite side are extended. Projections q on the pivots adapted to pass through keyhole slots in the frame when the door is shut prevent withdrawal of the pivots when the door is opened. The invention is stated to be applicable to table tops extensible at either end.
Patent GB-857569-A (GB)
Title: An improved metal composition
IPC: C22C1/04
Filed: 1959-04-27
Abstract: Electrical contacts and welding electrodes are made from an alloy containing by weight W 32 to 36%, Mo 32 to 36%, Cu and impurities balance.  In one example described the raw materials are 41% by weight each of Mo and W powders not over 5 microns in Fisher average particle size, and 18% by weight of Cu powder of minus 100 mesh. These are blended by ball milling, a binder added, and compacts of desired shape obtained by conventional pressing techniques.  The compacts are then sintered at 1300-1350 DEG C. for 6-20 minutes in an inert or reducing atmosphere, followed by infiltration of the balance of the Cu at 1200-1275 DEG C.  In a second example, the correct amounts of W, Mo and Cu to yield the desired composition are blended and fritted at 1100-1200 DEG C. into slightly sintered cakes which are then broken up, screened and the powder pressed and sintered in the range 1350-1425 DEG C. for not less than 30 minutes.
Patent GB-942261-A (GB)
Title: Continuous adsorption apparatus
IPC: B01D53/06
Filed: 1960-04-22
Abstract: 942,261. Absorbing gases. METALLGESELLSCHAFT A.G. April 22, 1960 [May 2, 1959], No. 14299/60. Heading B1L. An apparatus for the continuous absorption of a component of a gas mixture and its desorption comprises two chambers 3 and 4 separated by gas-tight partition wall 2. Pipes 5 and 6 connect the chambers with inlets and outlets of absorbers 7 and flanged inlet 9 and outlet 11 are provided for the gas under treatment. Steam for desorption is connected with flange 28 and leaves apparatus at lower hollow end of shaft 12. To switch from absorption to desorption and vice versa shaft 12 is lifted and spring loaded flanges 21, 22, 23 and 24 are moved to the pipe ends which communicate with the next absorber. These operational steps may occur at timed intervals or by a control from a concentration meter at the end of a rotatable swivel arm which samples from the next absorber due for steam. Modified apparatus with liquid seals or connections disposed on the periphery of a cylinder are described in Figs. 2-6 (not shown).
Patent GB-497913-A (GB)
Title: Improvements in or relating to indicating devices
IPC: B60Q11/00
Filed: 1938-05-13
Abstract: 497,913. Indicators ; electric signalling systems. SCHLESINGER, A. May 13, 1938, No. 14341. Convention date, March 11. [Class 38 (v)] [Also in Groups XXXI and XXXVIII] An indicator for the switch controlling the lamps of a motor vehicle comprises a casing a having a frosted glass front b and containing three incandescent bulbs c, d and e. A screen g ensures that lamp c only illuminates the upper part of glass b while allowing lamp d to illuminate the whole of the glass. Lamp e shines through a small aperture and gives a spot of light on the glass. When the switch is put to full headlights, lamp d lights up the whole of disc b, while for " dim " lamp c lights part of disc b and for " parking lamp e shows a spot on the disc. This is stated to resemble the actual appearance of the lamps.
Patent GB-1515917-A (GB)
Title: Ultraviolet light applicator for treating teeth
IPC: A61C13/15
Filed: 1975-08-11
Abstract: 1515917 Ultra-violet lamps for dental use CAVITRON CORP 11 Aug 1975 [16 May 1975] 14365/77 Divided out of 1515916 Heading F4R . An ultra-violet light applicator comprises a handle, a lamp cover extending from the handle and having a face shaped to conform to a portion of an arch of human teeth, an ultraviolet lamp mounted in the cover, and means (an electric cable) extending from the handle for powering the lamp.
Patent GB-1511652-A (GB)
Title: Pigment dispersing agents
IPC: C09D135/00
Filed: 1975-06-30
Abstract: 1511652 Salts of maleic anhydride/diisobutylene copolymers ALBRIGHT & WILSON Ltd 30 June 1975 [1 April 1974] 14416/74 Heading C3P The invention comprises water-soluble partial or complete alkali metal, ammonium or organic amine salts of maleic anhydride/diisobutylene copolymers having molecular weight characteristics (all M.W.'s being expressed as polystyrene equivalent M.W.'s in tetrahydrofuran) defined by either of the two following means: (A) the mode M.W. is in the range 5000-11,000 and the ratio Mw/Mn is not greater than 2À4; or (B) the mean M.W. is in the range 8000- 12,000, there being present no more than 12 wt. per cent of material of M.W. above 20,000 and no more than 2 wt. per cent of material of M.W. above 35,000. Use.-As pigment dispersants in waterbased paints.
Patent GB-1033538-A (GB)
Title: Improved electromagnet for a cyclotron
IPC: H05H13/00
Filed: 1963-04-11
Abstract: 1,033,538. Cyclic particle accelerators. N.V. PHILIPS GLOEILAMPENFABRIKEN. April 11, 1963 [April 16, 1962], No. 14605/63. Heading H1D. In a cyclotron of the type in which the magnetic field varies with azimuth each magnet poleface is formed of alternately " low " and " high " sectors, the maximum height of the high sectors above the mean height, which is the height at the centre of the magnet, being less than the maximum depth of the low sectors below the mean height. Further, both sectors taper to the mean height at the centre of the magnet with average slopes which are at least 20 degrees, preferably 60 degrees, to normal for the high sectors and at least 10 degrees, preferably 35 degrees, to the normal for the low sectors. Thus the high sectors taper less steeply than the low sectors. The object is to ensure that with different values of magnetic flux density, the flux density at the centre region is still equal to the mean value along a circular path in the central region. The sectors may be spiral-shaped with high sectors, tapering in stepwise fashion towards the centre thus forming platforms on which the ion source can be mounted. Specific dimensions are given.
Patent GB-862788-A (GB)
Title: Mandrel for tube drawing
IPC: B21C3/16
Filed: 1959-04-29
Abstract: 862,788. Drawing-mandrels. WALLRAMIT HARDMETAAL MAATSCHAPPIJ N.V. April 29, 1959 [May 13, 1958], No. 14637/59. Class 83 (4). A mandrel for reducing tubes by so-called reaction-drawing, comprises a frusto-conical portion the leading end of which is smaller in diameter than the trailing end, the mandrel being provided with a heat-conducting lining extending along at least the frusto-conical portion. A tube 3 is reduced by drawing through a ring 6 and over a mandrel having a steel body 7 e.g. of low-alloy crucible steel or carbon steel on which is mounted a hard-metal annular member 1 having a conical drawing part 2. A bronze lining 8 is mounted between the annulus 1 and the body 7 for the purpose of accelerating conduction of heat from the working surface of the mandrel to the interior. The mandrel may float freely within the tube during drawing or may be supported by a bar 10 which however is not subject to tension since the mandrel is held against forward motion by the reaction of the ring 6. In further modifications a hard-metal annulus may be mounted on either a solid bronze body or on a robust hollow bronze body. If a floating mandrel is used it may be reversible or " double-ended."
Patent GB-317808-A (GB)
Title: Improvements in the manufacture and production of organic compounds from oxides of carbon and hydrogen
IPC: C07C29/151
Filed: 1928-05-18
Abstract: 317,808. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). May 18, 1928. Oxygenated organic compounds; hydrocarbons. -Organic compounds, particularly those containing oxygen such as methyl, ethyl and higher alcohels, acids, esters, ketones, and fats, and also hydrocarbons, are prepared by treating gaseous mixtures comprising oxides of carbon and an amount of hydrogen or a gas rich in hydrogen greater than that of the carbon monoxide puresent, at a pressure more than 20 atmospheres with a catalyst comprising a mixture of an element from the first sub group of the periodic system and a large amount of an element from the eighth group of the periodic system and preferably from the iron group, if desired with the addition of less than 5 per cent of a metal forming a difficultly reducible oxide. A catalyst free from cadmium or thallium is used if the gaseous mixture contains oxides of carbon in an amount exceeding 25 per cent of the amount of hydrogen present. In examples, (1) ferric nitrate, cupric nitrate and a small amount of potassium carbonate are deposited on pumice, stone, calcined, and reduced by hydrogen; a mixture of carbon monoxide with excess of hydrogen is passed over the product at 350‹ C. under pressure, giving an oil containing higher hydrocarbons, alcohols and esters and also an aqueous condensate containing lower alcohols and fatty acids, hydrocarbons of the benzine type being recovered by charcoal from the residual gases; (2) ferric nitrate and cupric nitrate are precipitated with potassium carbonate, and the precipitate is washed and dried and used as in example 1, similar products being obtained; carbon dioxide gives the same result if used instead of carbon monoxide: (3) a solution of the nitrates of iron, zinc and copper is precipitated with potassium carbonate and the precipitate dried; a mixture containing carbon monoxide, hydrogen, methane and a little nitrogen is passed over this catalyst at a high temperature and pressure, a liquid being obtained in two layers, the upper one consisting chiefy of hydrocarbons the lower containing 30-40 per cent of ethyl alcohol; benzines may be recovered as in the other examples. Specifications 2306/14. [Class 1 (i), Chemical processes &c.]. and 300,294 are referred to.
Patent GB-907372-A (GB)
Title: Coin-controlled device
IPC: G07F1/04
Filed: 1961-04-24
Abstract: 907,372. Coin-freed apparatus. CARI G.m.b.H. & CO. April 24, 1961 [April 28, 1960], No. 14755/61. Class 27.  Coin-freeing mechanism for a vending machine comprises a movable coin holder g with a pair of coin pockets p, p 1  and a pair of locking levers n, n 1 , pivoted on a fixed casing a and having pins h, h 1  extending through slots h<SP>1</SP>, h 1 <SP>1</SP> in the coin holder ; when both coin pockets are filled with the requisite number of coins B, A and the holder is moved by a bar t<SP>1</SP> connected to an actuating lever H of the machine, the pins are lifted above stop-faces x of the slots and full movement of the holder is permitted. Full movement is also permitted if the pocket p is left empty and an additional higher-value coin A is placed in the pocket p 1  so that it acts on the pin k of a lever i and through a link f raises the locking lever n 1  in the empty pocket. If change-giving is required, a link I extending down from the pin k may engage below a rod S and raise it to engage a slot S<SP>1</SP> round a pin m on the coin holder, thus coupling the holder to a change-giving device R. The coin pockets, the casing and other parts are made of plastic.
Patent GB-199717-A (GB)
Title: Improvements in and relating to the rolling of matal
IPC: B21B1/08
Filed: 1923-06-05
Abstract: 199,717. Jones & Laughlin Steel Corporation, (Assignees of Rendleman, N. C.). June 20, 1922, [Convention date]. Rolling. - Steel structural members such as I-beams, channels, or other flanged members having thin deep web portions 12, Fig. 6, are produced by a rolling process wherein the web portion is first thinned by passing a blank 13 through a series of grooves formed in rolls which engage the web portion only of the beam, the flanges being thereby caused to separate by lateral flow without substantial elongation. The roll faces 14 at each pass are slightly tapered as shown in Fig. 3. The beam is finished by one or more passes of usual shape as shown in Fig. 5. In a modification, the finishing passes may be made in a universal mill.
Patent GB-311944-A (GB)
Title: Improvements relating to the pile yarn carrying spools of looms for weaving tufted fabrics
IPC: D03D39/06
Filed: 1928-05-21
Abstract: 311,944. Carpet Manufacturing Co., Ltd., and Cooper, T. May 21, 1928. Creel-frame arrangements.-The spools for the pile yarns in looms for weaving pile fabrics, such as described in Specification 20874/08, comprise solid drawn steel or other metallic tubes 9, each furnished with aluminium or other metal or alloy flanges 10 formed with tubular bosses 10<a> fitting in the tubes. The pile yarns are secured in a longitudinal channel &c. preferably dovetail shaped, registering with channels in the bosses 10<a> and with holes 10<c> in the flanges, through which the usual yarn retaining wire may be withdrawn after the spool has been wound. The holes 10<c> may have protecting marginal webs 10<d>. The tubes may be coated with aluminium paint or be otherwise roughened. The end flanges may be dished out as shown, annular central bosses 10<e> being left. Where several spools are mounted in each tube frame, adjacent spools are connected by projecting pins 11 on a spindle 12 connected to an adjacent spool fitting through slots 10f in a boss 10<e>. Additional slots at right angles to the slots 10f may be provided. Or the tubular passage 10 in the tubular boss 10<a> may be of angular or elliptical cross section and the spindle 12 shaped accordingly. The flanges 10 may be secured in position by plug pins 13, which may pass through the spindles and secure these in position, or the spindle 12 may be cast to the end flanges. The two outermost end flanged sections of the spools mounted in a tube frame, or the end flanges of the spool, where only one is used, are provided with spindles for engagement with the bearings on the tube frame.
Patent GB-1396822-A (GB)
Title: Automatic control system for use with a hydraulic drive system
IPC: E02F9/22
Filed: 1973-03-28
Abstract: 1396822 Motor vehicles CMI CORP 28 March 1973 [26 June 1972] 14887/73 Heading B7H [Also in Division F2] A tracked vehicle comprises four track assemblies 16 each driven by an hydraulic motor 32, 34, 36, 38 supplied by a pump 20 through a valve assembly 18 (Figs. 2 to 10, not shown) having a flow divider (Fig. 6, not shown) which proportions the flow from the pump between the tracks on each side of the vehicle for steering, the flow divider acting to steer the vehicle in response to either a manually controlled valve 64 or a probe 82 which follows a string line 84 automatically to steer the vehicle through adjustment of a valve 72. The vehicle may be used in road construction. The pump 20 can be driven by an internal combustion engine which may be a gas turbine.
Patent GB-1000198-A (GB)
Title: Process for preparing crystallizable complexes of retinene and certain phenolic materials
IPC: C07C403/00
Filed: 1962-04-18
Abstract: All trans retinal (retinene) is separated from a mixture of isomers thereof by mixing therewith a compound which forms a complex with all trans retinal, the mixing being performed at an ambient pressure less than atmospheric, crystallizing the complex formed and isolating the crystals, and then releasing the all trans retinal by contacting the crystals with an aqueous alkaline solution.  The ambient pressure may be less than 20 millimeters of mercury but greater than the sublimation pressures of the retinal, complex-forming compound or the complex.  The mixing may be carried out at 50 DEG  to 120 DEG  C. for at least two hours.  In examples complexes are formed with hydroquinone and isobutylidene bis hydroquinone. A list of complex-forming compounds is given. Specifications 765,533 and 773,189 are referred to.
Patent GB-576608-A (GB)
Title: Improvements in or relating to electrical contact springs
IPC: H01H50/54
Filed: 1944-08-08
Abstract: 576,608. Contact-members for switches. ERICSSON TELEPHONES, Ltd., and CROWE, D. C. Aug. 8, 1944, No. 15026. [Class 38 (v)] A contact spring for use in an electromagnetic relay, switching-key, or automatic telephone selector, comprises two substantially rigid members 1, 2 joined by a resilient member 3, member 2 preferably carrying two contacts 7a, 7b. The resilient member 3 presses the members 1, 2 against insulating plates 4, 5 to which member 1 is fixed by insulating pin 6, and may be attached either as shown in Fig. 1, or it may have its rear end attached to the movable member 2 and its front end to the fixed member 1, Fig. 2 (not shown). The members 1, 2, 3 may be riveted or welded together or may consist of one or more integral parts. Three contact springs may be inserted into an insulating housing 8, Fig. 3, the members 1 being widened to fit in grooves 10. The lowest spring is inverted and the middle member 2 is lengthened to receive an operating stud 11. To ensure even distribution of pressure between the contacts 7a, 7b, the rear ends of the members 2 are rounded to permit slight lateral movement.
Patent GB-544436-A (GB)
Title: Improvements in freight handling mechanism
IPC: B60P1/64
Filed: 1940-10-09
Abstract: 544,436. Handling transferable load containers ; conveyers. NATIONAL FITCH CORPORATION. Oct. 9, 1940, No. 15065. Convention date, Oct. 30, 1939. [Classes 78 (i) and 78 (iv)] Containers are transferred between vehicles by propelling mechanism carried by one of the vehicles and consisting of an endless chain with direct connecting means when the container is over the chain and connecting bars when the container is distant from the chain. When a motor vehicle is connected to a railway truck B by bridging members 60, the container C is guided over aligned channel members a, b, on the two vehicles. Endless chains 10 driven by a motor 14 effect transfer in either direction. When the container is over the chains, projections 20 on the chain engage lugs 36 depending from the container. At other times, a pushpull bar 40 connects the container to a block 50 having teeth to engage the chain. The end of the bar 40 has a flattened end 41 which is inserted when vertical into a slot 38 at the front of a recess in the container and is then turned into a horizontal position so that it cannot be withdrawn.