baber/WOPTO huggingface dataset:
Patent GB-807762-A (GB)
Title: Improvements in or relating to thermally responsive electric switches
IPC: H05B1/02
Filed: 1955-07-14
Abstract: 807,762. Thermal switches. IGRANIC ELECTRIC CO. Ltd. July 14, 1955 [July 26, 1954], No. 20400/55. Class 38 (5). A switch has normally-open and normallyclosed bridging contacts with spring means for biasing the contacts to the closed position, a push-button for changing the contacts over and thermal means for restoring the contacts to their normal positions. As shown, the switch comprises two movable contacts 25, 27 co-operating with contacts 14b, 15b and 13e, 14e, and urged apart by a spring 26. The ends 25c of contact 25 and 27c of contact 27 are engaged respectively by levers 28, 29 which are operable by a lever 9a of a snap-action mechanism such as that of Specification 642,109. In each position of lever 9a, one of the levers 28, 29 is moved to open its appropriate contacts whilst the other lever allows its contacts to close. Contacts 14b 15b are normally closed and control the compressor motor of a refrigerator, the normallyopen contacts 13e, 14e controlling a defrost heater. A push-button 30 is biased to engage the lever 9a at 30b by a spring 30d and when depressed, causes the snap-action mechanism to change-over and lever 9a thus engages lever 28 and releases lever 29 so that the contacts also change over. When a predetermined temperature, e.g. 50‹ F., has been reached, a diaphragm 10a reverses the snap-action mechanism and restores the contacts to their normal position. The push-button 30 may be coloured so as to act as an indicator since it is held in the depressed position by spring 30d until returned by return movement of lever 9a. In a modification (Fig. la, not shown) the button is urged outwards by a spring.
Patent GB-1208684-A (GB)
Title: Orthopaedic sock
Inventor: PRUETT FRANK MAUER
IPC: A61F13/04
Filed: 1968-04-30
Abstract: 1,208,684. Toe protector. F. M. PRUETT. 30 April, 1968, No. 20403/68. Heading A3B. [Also in Division A5] A protector which fits over the toes protruding from the front of a plaster cast comprises a stiff sole portion 18 and a cap portion 20, 22. It is secured to the plaster cast by means such as straps 32 provided with fastening means such as the multiple hook and eye fastener 42.
Patent GB-675512-A (GB)
Title: High frequency induction furnace
Inventor: CONQUEST ALEXANDER ROY
IPC: H05B6/26
Filed: 1949-08-05
Abstract: 675,512. Casting-machines. STANDARD TELEPHONES & CABLES, Ltd. Aug. 4, 1950 [Aug. 5, 1949], No. 20406/49. Class 83 (i). [Also in Group XI] Heating by electricity.-A furnace 5 comprising a high-frequency induction heating coil 6 surrounding a crucible 7, is rigidly mounted within an evacuated drum 1, and a mould 8 is rotatably suspended adjacent the furnace such that when the drum is turned through a rightangle the crucible contents are poured into the mould which remains in a vertical position. A poker 14, mounted in guides 15, is vertically actuated by an electric motor to break any crust forming on the melt surface of the crucible. A series of hoppers 12 containing ingredients to be added to the melt, are arranged above the crucible, and their outlets are controlled by electromagnetically - operated shutters. An observation window 11 is provided, together with means for feeding an inert gas into the drum.
Patent GB-125040-A (GB)
Title: Improved Gas-diverting Valve of the Rotating Type, for use with Purifiers and other Gas Apparatus.
IPC: C10K1/28
Filed: 1918-12-09
Abstract: 125,040. Dempster, R. & J., and Rodger, W. F. Dec. 9, 1918. Purifiers.-A distributing- valve for gas-purifiers, condensers, &c. consists of a cylindrical body d on the end of which is a rotating hood a. The body is divided by partitions d<1>, d<2> into quadrants provided with inlet and outlet pipe sockets g, h, k, l, and at the end is partially closed by two sectoral plates e of about 60 degrees. The rotating hood is divided into three parts by a central division band a radial division c, the smaller sector between the two divisions having an angle of about 60 degrees. Fig. 9 shows diagrammatically the manner in which four valves are used for supplying from purifiers, the thick black lines b, c indicating the divisions in the hood, and the hatched parts the sectoral plates above referred to in the body of the valve, while the supply and discharge mains are indicated by the lines i and o respectively, the lines being in full at the parts where the current of gas is passing, and dotted at the parts where the passage is blocked. In the Figure the gas is shown as passing through each valve and purifier in succession and returning from the last purifier to the first valve and passing thence to the main o. By suitably manipulating the valves, any or all of the purifiers may be cut out of the circuit, and by the use of an ordinary four-way valve v in addition the direction of the gas current may be reversed. By the use of this invention a relatively smaller number of valves are required than when ordinary four-way valves are employed.
Patent GB-123723-A (GB)
Title: Apparatus for Regulating the Velocity of Fall of Grain and similar Material.
Inventor: CHARLES BORUM
IPC: B65G11/00
Filed: 1918-12-09
Abstract: 123,723. Borum, C. Feb. 25, 1918, [Convention date].Void [Published under Sect. 91 of the Act]. Shoots.-An apparatus for regulating the speed of grain &c. issuing from a shoot consists of a hopper a having a central discharge opening b and a cylindrical rim c, fitted tangentially to the shoot d. The speed of the material leaving the opening b is approximately the same whether the grain has fallen from a high or a low level, since the grain arriving at a high speed makes one or more turns round the hopper before reaching the discharge opening b, whilst Drain arriving at a lower speed passes more directly to the discharge opening.
Patent GB-375574-A (GB)
Title: Improvements in or relating to ventilating louvres
IPC: B60H1/26
Filed: 1931-07-16
Abstract: 375,574. Ventilators ; vehicle window frames. BEATON & SON, Ltd., G. and BEATON, G. H., Victoria Road, Willesden, London. July 16, 1931, No. 20458. [Classes 20 (iii) and 137.] In a ventilator of the louvre type, more particularly of the type in which glass or other panels are arranged to overlap the tops of vertically sliding windows in vehicles, 'each panel is held at its upper edge in a frame comprising a curved lip adapted to slide into a correspondingly curved groove in a cornice. A channel B adapted to receive the upper end of a panel C is provided at its rear or inner side with a curved lip bl adapted to fit into a similarly shaped groove in a continuous cornice A. The panel is fixed at an angle to the vertical by means of wedge plates G screwed to the pillars of the vehicle body (not shown) and having bent lower edges g<1>, g<2>. Over the edges of two adjacent panels and separated therefrom by a felt or other pad F, is arranged a cover-plate E having at its upper edge a flange e<1> fitting over the channel B and at its lower edge a larger flange e<2> supporting the lower corners of the panels. Each cover plate E is attached to the corresponding wedge plate G by means of bolts H located in the spaces between the edges of adjacent panels.
Patent GB-631421-A (GB)
Title: Improvements in or relating to soap compositions
IPC: C11D10/04
Filed: 1947-07-29
Abstract: A saponaceous composition for use in hard water comprises a major proportion of a watersoluble soap and a minor proportion of a salt of a higher fatty acid ester of a lower sulphocarboxylic acid amide of an alkanol nontertiary amine sufficient to disperse lime soap in hard water.  These non-soapy detergents are derived from those known as "Emco" (Registered Trade Mark) type detergents and particular compounds specified comprise potassium lauric "Emco," sodium lauric "Emco," potassium myristic "Emco," sodium myristic "Emco," triethanolamine lauric "Emco," and triethylamine palmitic "Emco." The "Emco" detergent may also be made from the mixed fatty acids of coconut oil.  The usual soaps may be used such as the sodium, potassium, watersoluble organic base and ammonium soaps of the higher fatty acids of ten to eighteen carbon atoms in the molecule.  The compositions may be prepared in any of the conventional soap forms, cakes, flakes, shreds, granules, pearls, powder, creams, pastes, or solutions.  Floating products may be made by aeration with air or other compatible gas.  U.S.A. Specification 2,184,770 is referred to.
Patent GB-640170-A (GB)
Title: Method of producing ammonia from hydrogen and nitrogen
IPC: C01C1/04
Filed: 1947-07-29
Abstract: Ammonia is prepared by passing hydrogen and nitrogen over a catalyst containing at least one metal from the iron group and at least one of the metals magnesium and vanadium at a temperature not greater than 450 DEG  C.  The Specification as open to inspection under Sect. 91 comprises also the combination with the metal from the iron group of at least one metal capable of forming a nitride at the temperature of reaction.  This subject-matter does not appear in the Specification as accepted.  Reference has been directed by the Comptroller to Specification 609,756.
Patent GB-260071-A (GB)
Title: Improvements in and relating to centrifugal separators
IPC: B04B1/02
Filed: 1925-08-15
Abstract: 260,071. Green, E. W., and Ogden, H. Aug. 15, 1925. Cream separators and like machines for separating liquids from one another by density.- In a centrifugal separator of the type in which the discharge outlets from the bowl are so located that the difference in the radial distance of the said outlets from the axis of rotation is limited only by the radial width of the outlet for the heavier fluid, the discharge outlets j<1>, t<1> are in the form of circular weirs with uninterrupted peripheries. The discharge outlet t' for the heavier fluid is fed from the outermost stratum of liquid in the bowl through a passage g<1> of great peripheral length and small width. A mixture of oil and water is fed from a container x into the bowl b that is mounted on a driving shaft a and provided with a conical cover g. The member h has ribs i to provide outlet passages g<1> leading to the outlet weir t' for the heavier fluid, and the transverse area of these passages may be maintained constant by suitably forming the ribs i of increasing depth. The member h has also a diaphragm j with an outlet weir j<1>, and a flange k with an extension l. The lighter fluid delivered by the weir j<1> is discharged through ferrules o which pass through the ribs i without breakage. The plate t that forms the outer boundary of the weir t' is held in place by a nut s, and this nut has radial grooves u for the passage of the heavier fluid into the hood w.
Patent GB-765870-A (GB)
Title: Improvements in or relating to the manufacture of margarine
Inventor: EUWE GERRIT EVERT
IPC: A23D7/05
Filed: 1953-07-24
Abstract: 765,870. Margarine. UNILEVER, Ltd. Sept. 21, 1954 [July 24, 1953], No. 20566/53. Addition to 650,481. Class 84. The process of the parent Specification is modified by passing a part of the liquid fat as a continuous stream through a preliminary A- unit Votator 9 and at least one pre-crystallising unit 11 having a zone where the chilled fat is agitated to allow crystallisation to proceed and a following zone where the chilled fat meets and is agitated with the stream of the remaining liquid fat, so that in the fat phase of the total emulsion a substantial proportion of the higher melting point glycerides is in the crystalline condition whereas the lower melting point glycerides are in liquid form when the mixture enters the final A-unit of a Votator. One part by weight of aqueous ingredients may be supplied from a reservoir 1 and two parts of liquid fat from reservoir 2 by proportioning pumps 3a, 3b. 3c through pipe 8 to the A-unit 9 and a further two parts of liquid fat at 40‹C. by pumps 3d and 3e through pipe 20 which terminates about two thirds down the length of the first of two pre-crystallising units 11, 11<SP>1</SP>, constructed as described in the parent Specification, so that the temperature of the mixture falls from 32‹C. to 17‹C. in the A-unit 9, rises to 23‹C. in unit 11 when it meets the fat injected by pipe 20 and reaches 28‹C. on leaving unit 11<SP>1</SP>. The chilled material leaving the final tube 19 of the main Votator 17, 18, 19 is set in the B- unit 25. Alternatively, four parts of a mixture consisting of one part aqueous ingredients and fibe parts liquid fat may be fed to the A-unit 9 and two parts of the mixture direct to unit 11, or part or all of the aqueous ingredients may be fed with liquid fat directly to the unit 11. A suitable fat blend is 39 per cent palm oil, 30 per cent hardened fats, 8 per cent liquid oil and 23 per cent coconut and/or palm kernel oil. Specification 590,935 [Group V], is referred to.
Patent GB-903567-A (GB)
Title: An improved process and apparatus for the manufacture of angularly corrugated board or angles of fibre
IPC: D21J1/00
Filed: 1961-06-07
Abstract: 903,567. Making angularly corrugated fibreboard &c. OKAWA, R., and OKAWA, S. June 7, 1961, No. 20645/61. Class 96. In making angularly-corrugated fibre-board, a fibrous suspension is supplied under pressure to a gap Z between rotating rollers Xa, Ya, Fig. 5, so that white water is expressed and drains along grooves 13 and into a tray for reuse, the grooves being cleared of fibres by a doctor 37, Fig. 6. The general configuration of the surfaces of the rollers is as illustrated, to form the angularly-corrugated fibre-board. The grooves 13 may be machined in the surface of the rollers, or formed by rings 38 and spacers 39. The spacers may be of corrugated form to provide passageways for the white water into the interior of the rollers X, Y, Fig. 6, in which case, suction-boxes 46 are fitted. The wet fibre-board thus formed may be cut in lengths to suit a hot-oil or steam-heated multiple-platen press, the platens being of angularly-corrugated shape to suit the fibre-board. Cutting is effected as by a cutter-plate spring-pressed to a retracted position but advanced into cutting position by gearing, one wheel of which has teeth on a portion only of its circumference. The product may be sawn or planed and used for decorative building &c. material, and may be cut to make angle-section strips.
Patent GB-573448-A (GB)
Title: Improvements in or relating to air-break isolating switches of the heavy current type
IPC: H01H31/28
Filed: 1943-12-11
Abstract: 573,448. Air-break switches; latching of switches. DEAN, F. (Representative of DEAN, R.). Dec. 11, 1943, No. 20757. [Class 38 (v)] An air-break isolator adapted to carry heavy currents, comprises a blade contact 3 fixed on a rotatable pedestal insulator 2 so as to move in a horizontal plane into the " on " position, the circuit being finally completed by rotating a further pedestal insulator 8 so as to force the fixed contact 12 on to the blade 3. During this operation, stressing of the blade and its insulator is avoided by engagement of a pin 13 on the blade by a pair of surfaces 14 on the housing of contact 12. A stop is also provided on the pedestal 8 to avoid direct thrust of the blade on the pedestal.
Patent GB-1510982-A (GB)
Title: Wiper blades for screen wipers for motor vehicles
IPC: B60S1/38
Filed: 1975-05-16
Abstract: 1510982 Windscreen wipers  ROBERT BOSCH GmbH 16 May 1975 [5 Oct 1974] 20788/75 Heading A4F A pivot pin 15 for the attachment of a wiper  arm to a wiper blade yoke 10 of generally, U-shaped transverse section is manufactured from a portion of the rear of the yoke 10. In the illustrated embodiment two tongues 19, 20 are cut in the rear of the yoke and are rolled together to form the pivot pin 15. Alternatively a single tongue only may be rolled to form the pivot pin.
Patent GB-1010182-A (GB)
Title: Improvements in or relating to substance sampling
Inventor: JENKINS PHILIP
IPC: G01N30/06
Filed: 1962-05-30
Abstract: 1,010,182. Sampling device for gas chromatography. PYE Ltd. July 17, 1963 [May 30, 1962], No. 20805/62. Heading B1L.  A sample of volatile gaseous substances (e.g. solute vapours) in a predetermined volume of an inert carrier gas is produced by introducing the substances into a dilution vessel to which said gas is fed and containing therein a stationary phase absorber, e.g. a liquid, and removing said volume containing the substances from the effluent from the vessel thus giving a sample wherein the relative mass of each substance is determined by the relative concentrations in the vessel. In Fig. 1, inert carrier gas, e.g. dry filtered argon, enters diluvessel 1 at 2 containing a liquid L of insignificant vapour pressure. The sample of substances is introduced at 3, e.g. by means of a hypodermic syringe, and the effluent gas leaves by tube 4 and cock 5 going to waste 6. When cock 5 is operated -at given time intervals, a carrier gas, e.g. argon, from tube 7 sweeps the sample into column 8 of the chromatographic unit 9. The dilution vessel, sampler, column and detector are contained in a thermostat. In another embodiment, Fig. 2 (not shown), cock 5 is used in conjunction with a sampling loop. Another modification of the apparatus has means to move or circulate the liquid to permit frequent or continuous observations of changes of concentration of the sampled substance. A multi-component mixture may be analysed by. taking a series of samples of the effluent at predetermined intervals, obtaining a series of peaks for the various components and extrapolating to time t=0 to give the original concentration of each component.
Patent GB-1015947-A (GB)
Title: Load handling machine
Inventor: BOULINIER CLAUDE
IPC: B66C13/00
Filed: 1964-05-20
Abstract: 1,015,947. Winches; driving gear; supporting load at two or more points. COMMISSARIAT A L'ENERGIE ATOMIQUE. May 20, 1964 [May 31, 1963; Aug. 29, 1963], No. 20811/64. Heading B8B. [Also in Division H2] In apparatus for lifting loads at multiple points by means of multiple winches 2, 3, 4, 5, Fig. 6, driven from a single main motor, the winches have differential drives with additional inputs from auxiliary motors for maintaining the load level. A T-shaped member, to which the load is attached, is supported at its extremities by the winch cables 39, 40, 45, and carries level detectors 36, 37 (see Division H2). The winches are driven from a single main motor (not shown) which drives worm shafts engaging a pair of worm-wheels 8, 9, Fig. 2. The worm-wheel 9 directly drives a single drum 4 or a pair of drums 4, 5 on a single shaft for connection by cables 45 to the extremities of the longitudinal arm 35 2 . The worm-wheel 8 drives a pair of winches 2, 3 through intermediate differential gears 26 having external worm-wheels 28, 32 driven from the auxiliary motors 30, 33 through worm shafts 29. Cables 39, 40 attached to the winches 2, 3 are connected to the extremities of the transverse member 35 1 . The arrangement is such that while the main motor drives all the winches simultaneously the winches 2, 3 may be driven independently from the auxiliary motors 30, 33 to maintain the load level under the control of the level detectors 36, 37.
Patent GB-404947-A (GB)
Title: Improvements in and relating to manicuring instruments
IPC: A45D29/16
Filed: 1932-07-23
Abstract: 404,947. Manicuring-appliances. SEEL, M. A. M. MOLYNEUX-, 23, Ovington Square, London, and BERTUCCIOLI, T. B., Lower Green Farm House, Farnborough, Kent. July 23, 1932, No. 20842. [Class 131.] A manicuring device for applying liquid to the nails comprises a reservoir 10 communicating at one end with a hollow tip 11 which is provided with a discharge orifice 12 and is shaped at its outer end 35 to from a cuticle remover, and a feeder movable longitudinally in the reservoir and arranged to feed or carry liquid from the reservoir into the hollow tip. As shown in Fig. 2, the feeder 22 coacts with a capillary passage 30 in the end of the reservoir 10, is provided with a cut off valve 24, is loaded by a spring 27, and is actuated by a spring-loaded plunger 14 mounted in the cap 13 of the reservoir. In a modification, the valve 24 and spring 27 are dispensed with, the capillary passage 30 is formed in a tubular member projecting from the bottom of the reservoir into the tip, and the feeder is directly attached to the plunger 14.
Patent GB-1360188-A (GB)
Title: Semiconductor device
IPC: H01L29/78
Filed: 1973-05-02
Abstract: 1360188 Semi-conductor devices INTERNATIONAL BUSINESS MACHINES CORP 2 May 1973 [19 June 1972] 20956/73 Heading H1K An isolated semi-conductor region is produced by depositing a layer of dielectric on a monocrystalline semi-conductor wafer, patterning it to expose areas of the wafer. oxidizing the exposed material to form upstanding ridges of oxide surrounding at least one area of dielectric and then removing said dielectric and vapour depositing semi-conductor material between the ridges to bring it level with the tops of the ridges. Typically mutually isolated complementary FETs are produced on a 111 or 100 face of a .1-100 ohm.cm. P- or N-type Si substrate by first depositing a 500 silicon nitride layer by pyrolysis or reactive sputtering and patterning to form a mask against oxidation. Oxidation, e.g. in oxygen at 800-1100 C. or by anodizing produces the ridges of oxide. Donor and acceptor impurity are diffused into respective isolated areas, all masking layers removed and undoped Si deposited from silane under such conditions that growth occurs only on the Si, the process being continued until the Si surface is coplanar with the ridge tops. During growth outdiffusion from the doped areas occurs to produce one N and one P region (see Fig.). The same result is alternatively produced by dispensing with one, e.g. the donor diffusion and depositing N type material which is converted to P-type over the acceptor doped region. Finally source and drain regions of opposite type are formed by oxide-masked diffusions or ion-implantations in isolated regions 34, 40 respectively. To produce complementary bipolar transistors in the isolated regions the process is modified by initially simultaneously or sequentially diffusing donor and acceptor impurities with differing diffusion coefficients into the part of the substrate underlying region 40 to form an isolating PN junction during epitaxial growth. The transistor zones are formed by conventional diffusion steps.
Patent GB-686196-A (GB)
Title: Improvements in or relating to optical objectives
Inventor: WARMISHAM ARTHUR
IPC: G02B9/34
Filed: 1950-08-24
Abstract: 686,196. Optical objectives. TAYLOR, TAYLOR & HOBSON, Ltd. Aug. 13, 1951 [Aug. 24, 1950], No. 21012/50. Class 97 (i). A corrected objective comprises two compound divergent meniscus components having their external faces concave towards a diaphragm between them and each consisting of a convergent. element and a divergent element, such components being located behind a simple convergent front component and in front of a convergent rear component, the front component and the convergent elements of the two inner components being made of crystalline fluorite (calcium fluoride), whilst the convergent rear component is in the form of a cemented doublet including a divergent element made of a material having mean refractive index between 1.55 and 1.60 and a convergent element made of a material having mean refractive index greater than 1.65 and at least 0.06 greater than that of the divergent element, the cemented surface being collective and convex towards the diaphragm. Numerical data are given for one example of the lens shown.