baber/WOPTO huggingface dataset:
Patent GB-541789-A (GB)
Title: Improvements in cords for use in the covers of pneumatic tyres and other reinforced articles of rubber and similar materials
IPC: B60C9/00
Filed: 1940-06-10
Abstract: 541,789. Tyre cords &c. JACKSON, T., and FREARSON, T. B. June 10, 1940, No. 10097. [Class 120 (iii)] Cord for pneumatic tyres and other reinforced articles of rubber or similar materials is formed of a cabled assembly of a number of heavy singles yarns of cellulosic staple fibres having a cotton count of 3's to 10's and 14-24 turns per inch in one direction cabled together with 5-12 turns per inch in the other direction. The yarns may be of cotton or regenerated cellulose or a mixture of these fibres and singles yarns of different fibres, or, fibre mixtures may be cabled together. The yarns are lubricated during twisting with a solution of coconut oil in kerosene or petrol to which 1 per cent. tricresyl phosphate has been added.
Patent GB-456449-A (GB)
Title: Improvements in and relating to the manufacture of cylindrical sheet metal containers
IPC: B21D51/26
Filed: 1935-04-02
Abstract: 456,449. Flanging can bodies. PERKINS, C. W., 36, Hazelbourne Road, Balham, London, and PRITTY, J. J., Coombe Close, Coombe Wood Road, Kingston Hill, Surrey. April 2, 1935, No. 10205. [Class 83 (iv)] In a machine for flang ing can bodies, rotary heads 7 carry the bodies between flanging members 25 and stationary cams 31 to effect the flanging The bodies fall down a shoot to troughs 14, raised by fixed cams 16 to position the bodies to be gripped between heads 7 moved laterally by cams 10. The heads carry flanging collars 24 and a floating ring 25. Stationary cams 31 are shaped to force gradually the can body towards the axis of the rotary beads. The can bodies are rotated by contact with the cams 31 or auxiliary shoes and are flanged by the parts 31, 24. The cams 10 then withdraw the heads 7 and the cans are ejected.
Patent GB-1480967-A (GB)
Title: Alginate preparations
IPC: A23L29/256
Filed: 1975-03-12
Abstract: 1480967 Beverage compositions HENKEL & CIE GmbH 12 March 1975 [16 March 1974] 10225/75 Heading C6E [Also in Divisions A2 and C3] A preparation for use in a slimming diet comprises an alginate and a diphosphonic acid of formula R.C(PO 3 H 2 ) 2 .OH or CH 2 COOH.CH COOH.C(PO 3 H 2 ) 2 .R 1  where R is C 1 -C 7  alkyl and R 1  is 'H or CH 3 , or a water soluble salt threof e.g. Na, K, Mg, NH 4 , or substituted ammonium. Flavouring, vitamins and sugar/ fruit concentrates may also be included. The preparation may be in the form of a tablet, pill or powder. In an example a beverage composition for mixing with water comprises 64À5% of sugar/ fruit concentrate, 35% sodium alginate and 0À5% of the sodium salt of a diphosphonic acid of one of the above formulae.
Patent GB-1423231-A (GB)
Title: Alternating current electric generators suitable for heating by induction
IPC: H02M7/537
Filed: 1973-03-02
Abstract: 1423231 Inverting M SINET 2 March 1973 [3 March 1972] 10327/73 Heading H2F In an A.C. source (e.g. for induction heating), a pair of transistors T8, T9 and a pair of capacitors C5, C6 are connected as shown across a D.C. supply, the transistors being driven by a variable frequency oscillator 2 driving a squarewave generator 1 so that when an inductor 7 is connected as shown, the power transmitted by the inductor is controlled by variation of the oscillator frequency in relation to the resonant frequency of the inductor 7 and capacitors C5, C6. As described, the D.C. is derived by a threephase bridge of diodes D1, D2. Opto-electronic couplings to the transistors is envisaged.
Patent GB-1084426-A (GB)
Title: Improvements in the coating of metals
IPC: C23C22/44
Filed: 1966-03-09
Abstract: A chromate coating is formed on a zinc surface by applying an aqueous acidic solution containing hexavalent chromium and fluoride ions, and an activator in the form of tungstate, molybdate, vanadate or uranate, and then rinsing in a solution containing hexavalent chromium ion.  The first solution may also include arsenate ions, a buffering agent e.g. boric or silicic acid, and aluminium fluoride. The pH is 1.3 to 3.2, and nitric, sulphuric, and hydrochloric acids may be added to adjust the pH. The zinc surface may be first cleaned with an alkali metal hydroxide, phosphate or silicate e.g. 50% sodium metasilicate and 50% trisodium phosphate.
Patent GB-493552-A (GB)
Title: Improvements in or relating to rubber compositions and methods of forming the same
IPC: C08J3/22
Filed: 1937-04-12
Abstract: A composition containing rubber and a reinforcing pigment such as carbon black or zinc oxide and it may be other ingredients but no vulcanizing agent, is heated, preferably under static conditions and to substantially a vulcanizing temperature, e.g. 260 to 360 DEG  F., for from six to two hours in an inert gas or in vacuo.  During the heating the carbon black migrates and collects in floccules forming a reticulated network or chain structure interspersed with rubber containing a lower proportion of carbon black.  The composition may then be mixed with further rubber and/or compounding ingredients, any such admixed composition preferably containing compounding ingredients in the same proportions as in that of the treated batch. The treated batch, with or without this further admixture may then be milled with vulcanizing agents and vulcanized.  The resulting product compared with a non-treated composition, is softer, of the same tensile strength, of higher wearing or abrasion resisting quality, with lower hysteresis loss, and consequently a lower running temperature when flexed, as in a tyre tread for the manufacture of which it may be used.
Patent GB-656898-A (GB)
Title: An improved method and means for drying
Inventor: ROBIETTE ALFRED GORDON EVANS
IPC: F26B21/08
Filed: 1949-04-06
Abstract: 656,898. Drying air. AGRICULTURAL & INDUSTRIAL DRYERS, Ltd. April 6,1949, No. 10414/48. [Class 34(i)] [Also in Group X] In apparatus for producing warm dry air the air passes in sequence over the expansion coil 3 of a compression type refrigerating system, where the moisture condenses, over a heat exchanger 4 where the temperature of the air is raised and over the condenser coil 6, of the refrigerator, where it is further heated, the heat exchanger being 'supplied with a fluid at atmospheric temperature but independent of the air to be dried and warmed. The air is drawn through the - apparatus by a fan 2 which may be driven from a prime mover 7 which drives the refrigerator compressor. The heat exchanger 4 is supplied with atmospheric air by a fan 5 or with water at ambient temperature. An auxiliary electric heater 9 may be provided, or the air may be further heated by passing through the radiator or over the exhaust system of an internal combustion engine or over an electric motor driving the refrigerating compressor.
Patent GB-1253696-A (GB)
Title: Improved vehicle brake system
IPC: B60T17/22
Filed: 1969-02-26
Abstract: 1,253,696. Brakes. KELSEY-HAYES CO. 26 Feb., 1969 [4 March, 1968], No. 10421/69. Headings F2E and F2F.  In a vehicle brake system having front and rear braking systems there is an indicating system 34 providing a signal if the pressure in either system is lost and remaining in the signalling condition even when the brakes are released but being reset by actuation of the brakes with restoration of normal pressure. This is achieved by a detent piston 306 which slides in a bore 300 between the rear-brake pressure fed from bore 36 of a proportioning valve 28 at its right-hand end, and pressure from a front-brake metering valve assembly 30 at its left-hand end. If one of these pressures fails, the other pressure drives the piston along the bore 300 and in doing so, deflects a plunger 310 out of groove 308 in the piston to actuate an alarm switch 312. The piston is restored to its central position by virtue of the bushings 316, 332 which add to the effective area of the piston on the side that engages them. When the front brake system fails, leftward movement of the piston, causes 0-ring 328 to open port 400 to a by-pass valve 32 which by-passes the proportioning valve 28 to apply full pressure to the rear brakes.  The front and rear brakes are separately fed from a dual master cylinder 10, feeding pressure at entries 16, 20. A single housing 16 contains the alarm unit 34, a rear-pressure proportioning valve 28 which cuts off the rear-braking force on heavy braking, and a front-pressure metering valve assembly 30 which accommodates the differential spring-rate between the front and rear shoes.
Patent GB-926814-A (GB)
Title: Ion getter pump for high vacuum generation
IPC: H01J41/20
Filed: 1962-03-19
Abstract: 926,814. Ionization chambers. M. M. DUNKEL, [trading as E. LEYBOLDS NACHFOLGER]. March 19, 1962 [March 18, 1961], No. 10510/62. Class 39 (1). An ion getter pump for high vacuum generation by cold cathode discharge and sputtering in a magnetic field which lengthens the path of the electrons, comprises at least two discshaped ionization chambers 2 arranged consecutively along the pump axis and ring magnets 92, 102 between which the ionization chambers are individually sandwiched. The anodes 3 are preferably of cellular annular form, the inside surfaces of which are provided with perforations communicating with a central cylindrical suction chamber 1, and the cathodes 81, 82 are preferably plates of titanium, hafnium, aluminium or zirconium coated on the inside of the envelope, which may consist of non- ferromagnetic fine steel formed in units and joined together with the use of electricallyconductive seals 7 of gold, copper or aluminium. Alternatively, the inside surfaces of the envelope may function directly as cold cathodes by being formed of a getter. The permanent magnets are formed in two half-sections for easy removal and consist of high temperatureresistant material such as ceramic sintered ferrites, producing a uniform field of 1000 Oersted.
Patent GB-158477-A (GB)
Title: Improvements relating to squares
IPC: G01B5/245
Filed: 1920-04-15
Abstract: 158,477. Collins, W. G., and Cambridge & Paul Instrument Co., Ltd. April 15, 1920. Squares are provided with bubble level-indicators to enable the accuracy of the squares to be checked both during and after finishing. A square has three plane faces a, b, c, and a stiff web h, the faces a, c being parallel and at rightangles to the face b. Mounted adjacent to the faces a, c are bubble levels d, e provided with lugs j which are adjustably supported on studs k. The levels can be observed through apertures f, g. In finishing the square, the face c is trued and placed on an accurate surface plate; the face a is then tested and finished by the aid of a separate sensitive level placed on it. The face b is then applied to the truly plane surface of an angle plate placed on the surface plate, first with the face a and then with the face c uppermost, the faces a and c being kept clear of the surface plate. The face b is then trued until equal readings are obtained from the levels d, e. The levels also enable accurate determination of the degree of accuracy of the work to which the square is applied to be effected. The web h is preferably provided with an ebonite &c. handle i to prevent distortion of the square by the heat of the hand.
Patent GB-199863-A (GB)
Title: Improvements in keys for use with railway chairs
IPC: E01B9/58
Filed: 1922-04-12
Abstract: 199,863. Langley, J. April 12, 1922. Chair keys are made in three pieces, a wooden liner WL seated in a metal shoe MS, and a spring steel wedge W, the shoe having a central rib R with a rounded edge to permit adjustment of the wedge. The rib tapers in depth and may be concave in the centre, and may have projections or serrations S engaging corresponding parts on the wedge. The wedge is bent or curved from metal of uniform section and has a head H to engage the chair jaw together with projecting lugs PL on the shoe. One Provisional Specification describes the use of a serrated plate having at each corner bars which engage the chair jaw and are engaged by projections on the wedge. Another Provisional Specification describes also the use of a split spring wedge having serrations or ratchet teeth engaging these corner bars.
Patent GB-348813-A (GB)
Title: Improvements in headlights for vehicles
IPC: F21V7/00
Filed: 1930-04-03
Abstract: 348,813. Vehicle lamps. TOURRIOL, J., 167, Boulevard Montparnasse, Paris. April 3, 1930, No. 10637. Convention date, April 9, 1929. [Classes 75 (ii) and 75 (iv).] Reflectors.-A silvered glass reflector for a vehicle lamp comprises spherical surfaces with centres of curvature on a common axis, but the upper and lower halves of the front face, the rear face, or the front and rear faces, are of different radii. In the form shown in Fig. 2, the upper half of the reflector produces a horizontal beam whilst the radius of the rear face b, c of the lower half is increased to produce a downwardly divergent beam. The rear face b, c may be plane or concave. Similarly,-in the form shown in Fig. 5, the radius of the rear face a, b of the upper half is reduced to produce a downwardly convergent beam. The source of light preferably comprises a spherical electric lamp bulb 2, the front half of which is silvered, containing a short horizontal tranvserse filament, whilst the front glass 3 is vertically grooved, flutted, or made prismatic so as to produce a lateral dispersion of the beam.
Patent GB-414327-A (GB)
Title: Improvements in or relating to machines for forming strips of metal wool into ball-like rolls
IPC: B23P17/06
Filed: 1934-04-09
Abstract: 414,327. Bundling. STEVENS, A. H., 5, Quality Court, Chancery Lane, London.- (Rhodes & Co., J. H. ; 153, West Austin Avenue, Chicago, U.S.A.) April 9, 1934, No. 10661. [Class 94 (i).] A machine for forming strips 11 of metal wool into ball-like rolls 36 comprises a travelling belt 15 which receives the strips from a shoot 12 and conveys them beneath an arched casing 16 provided along its length with projections for engaging the strips and causing them to roll up. The casing 16 consists of four sections, the first 26 having inwardly projecting pins 31 for starting the rolling action, the second 27 having cross-ribs 33 and increasing progressively in height to that of the third and fourth sections 28, 29, which have shallower cross-ribs 35. Two separate machines may be mounted side by side in one frame.
Patent GB-699403-A (GB)
Title: Improvements in or relating to electric switch-gear and fuses
IPC: H01H9/10
Filed: 1949-04-22
Abstract: 699,403. Snap-action switches; contacts. EGA ELECTRIC, Ltd., and KILMINSTER, G. July 24, 1950 [April 22, 1949], No. 10684/49. Class 38 (v) [Also in Group XXXVI] A rotary switch carries one or more bridging contacts 17 that are clipped on to the rotary spindle 16. For this purpose, the spindle has enlarged portions 44 for receiving the clips and adjacent reduced portions 47 on to which the clips may be assembled readily prior to sliding them sideways on to the portions 44. The portions 47 are of circular cross section and rest in semi-circular bearings 42 in the base being retained against withdrawal, if desired, by co-operating projections (not shown) on the cover 12. The spindle also has a square portion 36 which co-operates with two blade springs to give a snap action and determine four switch positions 90 degrees apart. The clip contacts 17 may be modified in various ways and their ends may engage the same groove in the spindle. In the form shown, the contact 17 forms a bridge between a U-shaped contact 18, one end 59 of which has limited movement, and a contact 26 forming one of the two contacts of a detachable fuse carrier 11, the other contact 14 of which engages a contact terminal 29. The operating handle is connected directly to the spindle. The invention is shown applied to a twopole switch, to a 'splitter' switch, wherein there are two separately fused parallel circuits on the output side as well as a neutral circuit, and to a three phase switch. The latter Fig. 12 has a metal cover hinged at the bottom and which cannot be opened when the switch is "on" owing to a U-shaped operating member 72 overlying it. The end 75 of the operating member is flattened and engages with lost motion a slot in the end of the contact spindle. Specification 699,439 is referred to.
Patent GB-417610-A (GB)
Title: Improvements in the firing of boilers
IPC: F22B1/18
Filed: 1933-04-11
Abstract: 417,610. Heating boilers. WOODALLDUCKHAM (1920), Ltd., and REBER, J. W., 136, Victoria Street, London. April 11, 1933, No. 10807. [Class 51 (i).] To enable waste heat boilers to be heated by gaseous or liquid fuel the combustion temperature of which is so high that it cannot be used undiluted without injury to the boiler, gas from a producer A or gaseous or liquid fuel from a flue K is introduced to a combustion chamber C and burnt with air entering through a port D. The combustion products are mixed in a chamber F with waste gases returned through a conduit H from the boiler E being heated or with waste gases supplied by another source through a flue J before entering the boiler. A fan G is employed for recirculating waste gases through the flue H.
Patent GB-917370-A (GB)
Title: Improvements in chemical compounds and use thereof as antioxidants for organic materials
IPC: C08K5/375
Filed: 1961-03-24
Abstract: Hydroxybenzyl sulphides and sulphoxylates of the general formula <FORM:0917370/III/1> wherein R and R1 are alkyl, cycloalkyl, or aralkyl groups containing less than 13 carbon atoms, and X is a sulphur atom or sulphoxy group, are used as antioxidants and may be incorporated in fats, petroleum products, and synthetic lubricants. The antioxidant may be incorporated in the organic material subject to oxidative deterioration in a proportion of 0,01 to 5%.  Examples describe the incorporation of bis-(3.5-di-t-butyl-4-hydroxybenzyl) sulphoxide and sulphide, and bis-(3-methyl-4-hydroxy-5-t-butyl-benzyl sulphide in pork fat, gasoline, petroleum oils such as turbine oils, and a synthetic ester lubricant based on trimethylol propane.ALSO:Hydroxybenzyl sulphides and sulphoxylates of the general formula <FORM:0917370/IV(a)/1> wherein R and R1 are alkyl, cycloalkyl, or aralkyl groups containing less than 13 carbon atoms, and X is a sulphur atom or a sulphoxy group, are used as antioxidants inter alia for elastomers, polyamides, polyolefins, and synthetic lubricants. The antioxidant may be incorporated to the extent of 0,01-5% of the organic material subject to oxidative deterioration. Examples describe the incorporation of bis-(3,5-dimethyl-4-hydroxy-benzyl) sulphide, the corresponding 3,5-diisopropyl and di-t-butyl compounds, bis-(3-methyl-4-hydroxy-5-t-butyl-benzyl) sulphide and sulphoxide, in polyethylene and natural rubber compositions.ALSO:The invention comprises bis-(hydroxybenzyl) sulphides and sulphoxides of the formula <FORM:0917370/IV (b)/1> wherein R and R1 are alkyl, cycloalkyl, or aralkyl radicals containing less than 13 carbon atoms, and X is a sulphur atom or a sulphoxide group.  The sulphides may be prepared in several ways. A 2.6-dihydrocarbyl-4-(dialkylaminomethyl)phenol or a quaternary salt thereof may be reacted with an alkali metal sulphide in a solvent such as methanol, ethanol, isopropanol, or ethylene glycol mono-ethyl ether, at 50-150 DEG C.  The sulphoxide compounds may be prepared from the sulphides by oxidation e.g. with hydrogen peroxide in glacial acetic acid.  The sulphides may also be prepared by reacting a molar proportion of an appropriate phenol with one to three molar proportions of formaldehyde and 1/2 to 2 molar proportions of an alkali metal sulphide or hydrosulphide in an alcoholic solvent at 25-150 DEG C. for 1/2 to 24 hours.  Examples describe the preparation of bis-(3.5-di-t-butyl-4-hydroxybenzyl)sulphide and sulphoxide and the corresponding (3-methyl-5-t-butyl), (3.5-dimethyl), (3.5-dicyclohexyl), and [3-methyl-5-(alpha-methylbenzyl)] compounds. The sulphides and sulphoxides may be incorporated as antioxidants in elastomers, polyamides, polyolefins, fats, petroleum products, and synthetic lubricants.
Patent GB-1154263-A (GB)
Title: Improvements relating to Fabric-Resin Laminates
IPC: D03D27/00
Filed: 1967-10-05
Abstract: 1,154,263. Laminates. SOC. RHODIACETA. 5 Oct., 1967 [5 Oct., 1966; 16 Nov., 1966; 11 April, 1967], No. 45561/67. Heading B5N. [Also in Division D1] A laminate comprises one or more plies of a fabric with layers of heatset resin wherein the body of the fabric comprises synthetic yarns which are shrunk after the fabric is formed and has on at least one of its faces floats of essentially non-shrinking yarn. The shrinkable yarns may be polyester or polyethylene and the non- shrinkable yarns of spun glass. The heatset resin may be a thixotropic solution containing styrene, an ester produced from maleic, phthalic and adipic triacids, propylene glycol and ethylene glycol, methyl ethyl ketone peroxide and cobalt octoate. A hammered appearance may be produced on the outside surface by placing on a smooth surface to gel.
Patent GB-581246-A (GB)
Title: Improvements in or relating to the measurement of electric impedances
IPC: G01R27/02
Filed: 1944-06-07
Abstract: 581,246. Impedance and power factor measurements. SHERIDAN, V. A. June 7, 1944, No. 10914. [Class 37] The impedance of an element is measured by associating a known variable impedance therewith to form. a tunable circuit, supplying the circuit successively with voltage at two predetermined frequencies, adjusting the variable impedance to effect resonance at each frequency and computing the impedance from the two frequencies and the difference between the two values of the variable impedance. A coil 10, the impedance of which is to be measured, is connected in parallel with a variable condenser 110 and supplied from an oscillator 1 the frequency of which may be adjusted to two predetermined frequencies by switching condensers 4, 5 alternatively into the tank circuit 2. The condenser 110 is adjusted to effect resonance at each frequency as indicated by a maximum reading on the valve-voltmeter 18. The inductance of coil 10 is then computed from a formula given in the Specification. For direct reading, ganged switches 61, 62, are provided so that a further condenser 111 is switched into circuit in parallel with condenser 110 at the same time as condenser 5 is switched into circuit in the oscillator. Thus, if condenser 110 is adjusted for resonance at the frequency corresponding to the open position of switch 62, the condenser 111 only need be adjusted to effect resonance at the other frequency and may be calibrated to read inductance values direct. The power factor of the coil may be determined in known manner from the-voltmeter 18 reading at resonance. The condensers 4, 5 may be finely adjusted by using a known .inductance in place of coil 10. Capacitance may be measured by using a known variable inductance in parallel therewith in place of elements 110, 111. A plurality of preset oscillator frequencies may be employed to vary the range of measurement.
Patent GB-642988-A (GB)
Title: Improvements in or relating to boxes or cartons of cardboard or other like material
IPC: B65D85/10
Filed: 1948-04-22
Abstract: 642,988. Boxes or cartons. JACKSON, D. R. P., and MOLINS MACHINE CO., Ltd. April 22, 1948, No. 11147. [Class 18] A cardboard or like box having a hinged lid 1 with a part that lies in the same plane as a part of the body 2, e.g. as described in Specification 507,998, has the hinge formed by two or more parallel creases 4. The box may have arcuate slits defining a disc-like portion as described in Specification 517,947 in which case the disc has two perforations or slits 7.