baber/WOPTO huggingface dataset:
Patent GB-1000724-A (GB)
Title: Improvements in control systems
IPC: G05D7/06
Filed: 1962-05-30
Abstract: 1,000,724. Electric correspondence control systems. SIMMONDS PRECISION PRODUCTS Inc. May 30, 1962 [June 2, 1961], No. 20924/62. Heading G1N. (Also in Division G3] Apparatus for controlling the level of liquid in e.g. a fuel tank, comprises an automatically balanced bridge for measuring the liquid level, and a differential system for comparing it with the required level. The bridge comprises measuring capacitor 8 and reference capacitor 9 forming one branch, with parts of a potentiometer 4 and secondary winding of transformer 2 as the other branch. The slider 10 of potentiometer 4 is automatically made to follow the liquid level, as determined by capacitor 8. Thepotential or slider 10 is compared with a control potential or slider 25 of a potentiometer 24, any difference being amplified to energize a relay 19 which initiates liquid flow until the potential or slider 10 is equal and opposite to that on slider 25. Polarity switches 17, 22 ensure that relay 19 only responds when the difference potential between sliders 10, 25 has the correct polarity.
Patent GB-573835-A (GB)
Title: Improvements in or relating to the manufacture of interpolymers of styrene with polyhydric alcoholic mixed esters and of coating compositions obtained therefrom
IPC: C08F283/01
Filed: 1943-12-14
Abstract: The process of the parent Specification is modified by adding a portion only of the styrene to the partially polymerized ester at the beginning of the reaction and thereafter adding the remainder in portions over predetermined intervals of time during the source of the reaction.  Suitably, 25 per cent is added at the start and the remainder added in portions of 25 per cent.  If desired, the first portion may be added drop by drop.  Heating is continued after the last addition of styrene until the desired viscosity is reached.
Patent GB-470040-A (GB)
Title: Extensible electric cords
IPC: H01B7/06
Filed: 1936-07-29
Abstract: 470,040. Cables. UNGEMUTH, H. A. July 29, 1936, No. 20995. Convention date, Aug. 6, 1935. [Class 36] An extensible cable comprises conductors 1, a cover 3 and one or more resilient strings 4 occupying longitudinal housings in the fabric of the cover ; preferably such housings are formed by rows of meshes of a braided cover.
Patent GB-453014-A (GB)
Title: Improvements in decorative artificial lighting
Filed: 1935-07-24
Abstract: 453,014. Discharge lamps. BRACKENSEY, A. H., and FRANCO-BRITISH ELECTRICAL CO., Ltd., 25, Oxford Street, London. July 24, 1935, No. 21032. [Class 39 (i)] [See also Groups XI and XVIII] A neon discharge tube 1 is sealed within a fluorescent mercury discharge tube 2 so as to provide separate external electrodes, and the area of the light-emitting surface of the mercury tube is approximately twice that of the neon tube. The tones of the illumination may be altered by varying the relative luminous intensity of the tubes as by the means described in Specification 416,388.
Patent GB-405255-A (GB)
Title: Improvements in emulsifying machines
IPC: A01J13/00
Filed: 1932-07-27
Abstract: <PICT:0405255/III/1> <PICT:0405255/III/2> A machine for making emulsions, especially of butter and milk, comprises a cylinder a mounted at its upper end in trunnions a<1> in uprights c<1> on a base c<2>.  The cylinder contains a plunger d passing through a washer h retained by a screw-ring h<1> and is jointed to a handlever i fulcrumed on a detachable pin i<1> passing through the uprights c<1>. The head of the cylinder contains a tapered emulsifying element e having a ribbed surface and mounted in a coned socket.  The element has an enlarged screw-threaded portion j screwed to an extent depending upon the desired emulsifying aperture, into the cylinder head.  The mixture to be emulsified is drawn into the cylinder, from a separate vessel at the level of the base c<2>, through a pipe f<1>, having connection with one trunnion a<1>, through a passage in the trunnion and thence through a passage e<3> in the element e controlled by a ball valve f<2>.  The emulsified product passing the element e emerges through a pipe g controlled by a ball valve g<2>. Specification 405,254 is referred to.  The Provisional Specification describes the operating lever as having an open slot which embraces a pin on the base and which can then be closed by a spring catch; it also states that the suction tube may be flexible and that in this case the cylinder need not be trunnioned.
Patent GB-443148-A (GB)
Title: An improved hard court for games, and composition for its manufacture
IPC: C09K17/40
Filed: 1934-07-20
Abstract: A composition for surfacing tennis-courts comprises a hard mineral substance such as sharp sand, stone, rock or granite chippings, granular rubber or cork or both, fibre (e.g. coconut), and a mixture of linseed oil and a resinous or gluey substance. The rubber may be waste rubber.
Patent GB-277478-A (GB)
Title: An improved device for enabling electric mains to be used for supplying high tension current to thermionic valves
IPC: H02M1/14
Filed: 1926-08-28
Abstract: 277,478. Hartley, A. Aug. 28, 1926. Converting pulsating currents into steady continuous currents.-Means for supplying steady high tension current to thermionic valve circuits from supply mains or from a source of rectified current a, b comprise iron cored chokes c, d connected in each supply lead and enclosed in metal shrouds c<2>, d<2> which are connected either directly or through a condenser g to earth. Supply of current to several circuits at different voltages is obtained either by using a number of series resistances connected to one of the output leads, or by a resistance j connected across the output leads and provided with tappings j<1>, j<2> connected to the output terminals. Condensers k<1>, l<1>, m' are connected across each output circuit. The devices may be enclosed in a moulded insulating casing on which are mounted the input and output terminals or sockets and also a terminal f for connection to the earth terminal of a wireless set, and a terminal h to be connected to earth or to a counterpoise. The cores of the chokes c, d may also be connected to the counterpoise or to earth either directly or through a condenser.
Patent GB-358915-A (GB)
Title: Apparatus for feeding envelopes, and the like to typewriters and like machines
IPC: B41J13/12
Filed: 1930-07-14
Abstract: 358,915. Typewriters. KLETT, F. W., 11, Hammerrodchen, Mehlis, Zella, Thuringia, Germany. July 14, 1930, No. 21250. [Class 100(iv).] Sheet-feeding arrangements.-In an apparatus for feeding sheets, envelopes, &c., to the platen of a typewriter or like machine, a stack of sheets stands on an inclined plate and is pressed against a feed-roller by means of a vertical plate which is pivoted to a spring- pressed pivoted bracket. The apparatus shown in the Figure comprises a frame x supported by rails o and connected by straps p to the carriage r. The frame supports feed-rollers c, e, the roller c being geared to the roller e and being connected by a flexible shaft s to the platen b. The stack of sheets t stands on an inclined plate d and is pressed against the feed-roller c by means of a plate a which rests on the plate d and is pivotally connected to a bracket k pivoted on the plate d. A notched plate co-operating with a catch is employed for adjusting coiled springs engaging the bracket. The plate a may carry a vertically adjustable plate f which has a bend g at the bottom, and is set in a high or low position for thick or thin sheets respectively. The sheets are fed in overlapping relation by the feed-rollers, and pass on to the platen. On delivery, the sheets are prevented from wrapping around the platen by means of a plate i which rests on the platen and can move in guides on the plate d when the platen is shifted.
Patent GB-1182495-A (GB)
Title: Automobile Trim Components
IPC: C08J9/34
Filed: 1967-05-08
Abstract: 1,182,495. Moulding composite article. DAVIDSON RUBBER CO. Inc. 8 May, 1967 [31 May, 1966], No. 21293/67. Heading B5A. [Also in Division B7] An automobile interior trim component, e.g. a safety horn button with metal insert, comprises a rigid impact absorbing polyurethane foam core and a flexible non-foamed vinyl skin between which is an intermediate layer of a flexible foamed vinyl resin. In the method of making the component, a vinyl plastisol coating is applied to a first mould surface (e.g. by slush moulding, spraying or rotational casting) and gelled, an expansible vinyl coating is then applied thereto (e.g. by spraying), gelled, fused and expanded. The two-layer skin is then removed after cooling the mould and placed in a second mould to which a foamable urethane mix is supplied (e.g. by spraying or injecting) and allowed to expand and set against the fused skin. Examples of vinyl compositions including resins, plasticizers, inhibitors, blowing agents and fillers and of a urethane mix are given.
Patent GB-1371502-A (GB)
Title: Apparatus for dispensing fasteners
IPC: A01K11/00
Filed: 1971-09-14
Abstract: 1371502 Inserting fasteners MONARCH MARKING SYSTEMS INC 14 Sept 1971 [30 Sept 1970 (2)] 21332/74 Divided out of 1371501 Heading DIG The subject matter of the present Specification is identical with that disclosed in Specification 1371501 but the claims are concerned with an apparatus for dispensing fasteners, comprising a tubular needle projecting from a body and through which a part of each fastener is pushed during dispensing, and means for driving the tubular needle in the direction of removal from the body.
Patent GB-317469-A (GB)
Title: Improvements in and relating to the mounting of machine parts on shafts in a manner suitable for the transmission of rotational forces
IPC: F16D1/096
Filed: 1929-07-11
Abstract: 317,469. Junkers, H. Aug. 18, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Securing flywheels, pinions, pulleys, bearing-races, &c. on shafts.-A split, slotted, or continuous compressible cone 2, preferably of relatively soft material, engages the tapered bore of a wheel &c. 3, which is thrust axially by a nut 5 or tapered cotter, the angle of the cone being such that there remains a residual axial force which presses the cone against a shoulder 7 or second nut on the shaft 1, or against a spacing-sleeve transmitting the thrust to a second wheel and cone arrangement, Fig. 8 (not shown), or to a ball-bearing race abutting against the shoulder 7, Fig. 7 (not shown). The bore of the wheel &c. may ,as shown, be only partly tapered, a safety key 4 being provided at the cylindrical end, but the taper may extend over the whole bore, the key 4 then passing also through the cone 2, Fig. 1 (not shown). Washers of varying number or thickness may be interposed between the parts 2, 7 to adjust the axial position of the wheel &c.
Patent GB-496511-A (GB)
Title: Improvements in electrodes for arc welding
IPC: B23K35/04
Filed: 1937-08-03
Abstract: 496,511. Uniting by fusion. UNITED STEEL COS., Ltd., and REEVE, L. Aug. 3, 1937, No. 21396. [Class 83 (iv)] An arc welding electrode has a metal core on which is first wound one or more open spirals 2 of substantially incompressible material, over which is then applied a covering 4 of braided cotton or like and finally the covered core is coated with flux 5. In this manner the braid is retained near the surface of the flux in a single fluxing operation. The flux also fills the interstices of the winding 2 at 3 and of the braid. The winding 2, which may be of round wire or flat tape of soft iron or mild steel or alloying metal or of cotton string or tape previously hardened by shellac or artificial resin varnish or mixtures of such varnishes with fluxes, has a pitch less than ¢" and preferably “" in order to give support to the braid, which may have a pitch of 1¢" and about ten threads to the linear inch.
Patent GB-487002-A (GB)
Title: Improvements in or relating to the casting of metallic ingots
IPC: B22D7/10
Filed: 1937-08-03
Abstract: 487,002. Casting processes. HARBISON WALKER REFRACTORIES CO. Aug. 3, 1937, No. 21400. Convention date, Oct. 28, 1936. Drawings to Specification. [Class 83 (i)] Mould materials.-The piping of ingots is hindered by placing on the cast metal an insulating refractory porous block containing combustible material which closes the mouth of the mould. The block may comprise magnesium oxysulphate or oxychloride, silicates, or portland or alumina cement, and wood shavings, maize corn stalks, straw, hay, corrugated paper, coke, or cork compressed to form a porous block and dried at under 700‹ F. In a modification a non-refractory binder such as dextrine may be used, provided the block has an outer coating of refractory material. The mould may be only partly filled, in which case the block rests on the surface of the molten metal or it may be filled right to the top in which case it is covered bya larger block. When shrinkage has produced a cavity in the top of any ingot, additional metal is poured in through the charred centre of the block or through a hole made therein, but, as this occurs slowly, a large number of ingots may be poured before it is necessary to go back and fill the shrinkage cavities.
Patent GB-149289-A (GB)
Title: Improvements in sugar cane mills
IPC: C13B10/06
Filed: 1920-07-15
Abstract: 149,289. Bruin, F. J. de July 15, 1919, [Convention date]. Roller mills. - A sugar-cane mill comprises three rollers mounted in triangular arrangement with hydraulic rams 3 on the top roller 1, and the back roller 2 is movable radially and provided with hydraulic means 4. Rollers or balls 5, 6 may be provided between the trunnions 7, 8 of the top and back rollers and the mill housings 9. The top roller 1 is loaded vertically or in any oblique direction, as at an angle of 90‹ to the connecting line between the top and back rollers, and the hydraulic means 4 on the back rollers 2 acts in an horizontal direction or in any other direction, as in the direction of the back pressure. Reference has been directed by the Comptroller to Specification 116,401.
Patent GB-861957-A (GB)
Title: Improvements relating to shaking screens
IPC: B07B1/46
Filed: 1957-07-08
Abstract: 861,957. Sifting apparatus. SCHUECHTERMANN & KREMER-BAUM AKTIENGESELLSCHAFT FUER AUFBEREITUNG. July 8, 1957 [July 10, 1956; Aug 10, 1956], No. 21533/57. Class 117 A shaking screen box 13 supported on a base frame 2 has stops 10, 11 detachably and adjustably mounted on a member 12 -secured to the box, and the stops are located, with play, between resilient buffers 8 and 9 carried by a support 1 on the base frame. Lugs 15 on the stops engage the bore 14 of the member 12, and a bolt 16 holds the stops in position. The buffers are mounted on plates 3 and 5 spaced by spindles 6 and 7. The play between the stops and buffers may be adjusted by inserting shims 17. In Fig. 3 the buffer plates are attached to a support 18 on the base frame which has a recess 19 in which the parts are received. In Fig. 5 the stops 23, 24 have threaded lugs 28, 29 which engage the threaded bore of a bushing 30 secured to the screen box. The bushing is split longitudinally and has bolts 32 which clamp the stops in position.
Patent GB-1195919-A (GB)
Title: Improvements in or relating to Decollators.
Inventor: GILL EDWARD WILLIAM
IPC: B65H41/00
Filed: 1968-05-07
Abstract: 1,195,919. Decollating webs. LAMSON PARAGON Ltd. 1 May, 1969 [7 May, 1969], No. 21537/68. Heading B8R. A pre-separator for a decollator, e.g. of the type described in Specification 988,387, comprises a pair of side plates 2 joined together by a plurality of separating rods 4 disposed as illustrated, each side plate 2 having a top flange 6 formed with a hook 10 and a slot (Figs. 2 and 3, not shown) so that the pre-separator can be removably attached to the decollator. A stationary assembly 16, e.g. a continuous stationery form comprising a top record web 18 and a series of pairs of webs 20 each constituted by a record web and a superposed carbon transfer web, is drawn through the pre-separator by the pin-feed tractor of the decollator (not shown), the top web 18 and each of the pairs of webs 20 passing over a respective rod 4. The carbon transfer webs are then separated from the record webs in the decollator by a carbon rewind mechanism of known type.
Patent GB-678190-A (GB)
Title: Thermally responsive cut-off for steam generator
IPC: F22B29/02
Filed: 1950-09-01
Abstract: 678,190. Liquid-fuel furnaces. COMBUSTION ENGINEERING - SUPER - HEATER, Inc. Sept. 1, 1950 [Oct. 18, 1949], No. 21590/50. Class 51 (i). In a liquid fuel fired steam generator having a furnace chamber 10 and convection pass 12 lined with water tubes 21 and 30 respectively said tubes being supplied from a header 25, if the water supply to the tubes. 21 fails or is inadequate, fuel supplied to the burner 11 is cut-off by a thermally responsive element 50 in a pilot tube 40 disposed in the circuit of the feed water supplied by a circulation pump 32. The element 50 incorporating a pressureoperated bellows 62 is associated with a switch 63 arranged to open an electric circuit 64, 65 when the pilot tube temperature exceeds a certain value operating a control 53 to cut-off a motor 66 driving the fuel pump 67. The pilot tube 40 receives feed water through a constricted tube 42, discharging it through an inner tube 43 and tube 45 into a collecting header 26 and the safety device can be tested by closing the valve 47 cutting off the water to the pilot tube 40.
Patent GB-578981-A (GB)
Title: Device for use in making bifocal lenses
IPC: G06G1/14
Filed: 1944-11-03
Abstract: 578,981. Optical computing devices. COULDEN, A. P., and FLEMING, Ltd., J. & R. Nov. 3, 1944, No. 21607. [Class 106 (i)] A computing device for use in making bifocal lenses has a plate marked with one abscissa scale 15 representing distance lens power in the vertical meridian, another abscissa scale 17 representing prism effect in prism dioptres at the near visual point and an ordinate scale 16 representing segment diameters, a transparent slider 13 on the plate having a scale 18 of abscissµ representing reading segment additions, and a transparent arm 14 pivoted on the slider at such a point that when the slider is set to the prescribed distance lens power and when the pivoted arm is set to the prescribed reading segment on the slider scale 18, the operator can read off under the pivoted arm 14 the prism effect resulting from the use of any segment diameter.
Patent GB-391760-A (GB)
Title: Improvements in or relating to pistons for internal combustion engines
IPC: F16J1/08
Filed: 1931-07-29
Abstract: 391,760. Collecting leakage oil from bearings. SULZER FRERES SOC. ANON., Winterthur, Switzerland. July 29, 1931, No. 21659. Convention date, Oct. 22, 1930. Void [Published under Sect. 91 of the Acts]. [Class 12 (i).] A piston b for internalcombustion engines is provided at or near its lower end with an inwardly-projecting annular flange g formed with a downwardly-directed lip, whereby lubricant draining from the gudgeon pin down the inner wall of the piston will drop into the crank case clear of the cylinder wall.
Patent GB-923377-A (GB)
Title: Improvements in and relating to the production of acrylonitrile copolymers
Inventor: DAVISON ROGER ALLEYN
IPC: C08F283/00
Filed: 1959-06-25
Abstract: Acrylonitrile is polymerized according to the process of the parent Specification with the modification that one of the comonomers is methallyl sulphonic acid or a salt thereof.  Further comonomers such as vinyl acetate, styrene or methyl acrylate may also be present. The copolymer produced contains at least 80% acrylonitrile and preferably 0,5 to 5% methallyl sulphonate. In the examples the polymerization is carried out in 50% aqueous sodium thiocyanate solution using azo-bis-isobutyronitrile as catalyst and in the presence of thiourea dioxide and may be carried out at pH5.  In a comparison example sodium allyl sulphonate is copolymerized with acrylonitrile.
Patent GB-1452704-A (GB)
Title: Prealignment system for an optical alignment and exposure unstrument
IPC: H01L21/677
Filed: 1974-05-16
Abstract: 1452704 Orientating articles KASPER INSTRUMENTS Inc 16 May 1974 [21 May 1973] 21815/74 Heading B8S Semi-conductive wafers 17 of rounded form with a flat portion are fed singly along an air bearing track 18 from a magazine 16 to a platform 20 which tilts so that the wafer 17 engages a flat edge portion 85 of a stop plate 65 and driven rollers 64. Only two rollers are shown: a second outer roller is hidden under transfer arm 28. The three rollers 64 are driven by a belt 78 so that the first (visible) outer roller rotates anticlockwise while the centre and second (hidden) outer roller both rotate clockwise. These latter two rollers are initially engaged by the wafer 17 and it is rotated anticlockwise on an air cushion provided on the platform 20 until the flat portion becomes aligned with the three rollers 64. In this position only the two outer rollers are engaged by the wafer 17 and, as they rotate in opposite directions, the wafer 17 ceases to rotate. The air cushion provided at the platform 20 is then terminated and the wafer 17 vacuum clamped to the platform 20, when it is in a prealigned position ready for transfer by an arm 28 to a wafer chuck 14 for further manipulation to align it with a photomask for exposure to define a desired circuit pattern.
Patent GB-315717-A (GB)
Title: Improvements in and relating to evaporating plants
IPC: B01D1/28
Filed: 1929-07-16
Abstract: 315,717. Akt.-Ges. Brown, Boveri, et Cie. July 16, 1928, [Convention date]. Evaporating plant.-In evaporating plants in which the heat required for evaporating the liquid contained in a vessel 1 is supplied by energy from a compressor 4 which draws vapour from the vessel 1 and circulates it under pressure through the heating system 2, the heat required for starting up the apparatus is obtained by operating the compressor with air as working fluid until the temperature of the liquid reaches the level' necessary for normal working. Condensate is. drawn off at a valve 6.
Patent GB-173209-A (GB)
Title: Improvements in or relating to heat insulating handles
IPC: A47J45/08
Filed: 1921-08-17
Abstract: 173,209. Borel, J. Dec. 21, 1920, [Convention date]. Addition to 168,062. Handles.-To maintain the cover-plates 2, desscribed in the parent Specification, in operative position on the handle 1, a pin 3 is provided on the latter adapted to engage holes 4 in the coverplates. By lifting them slightly the cover-plates can be disengaged from the pins. The undersides of the cover-plates are provided with sharp or rounded points 5 adapted to engage the handle 1 with very small surfaces of contact.