baber/WOPTO huggingface dataset:
Patent GB-725695-A (GB)
Title: Improvements in and relating to quartz-to-metal seals
IPC: H01J61/34
Filed: 1953-02-23
Abstract: 725,695. Quartz-metal seals. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 23, 1953 [Feb. 23, 1952], No. 4986/53. Class 36. A quartz-metal seal comprising a quartz tube having one end pressed around and hermetically united to a foil portion of a metal conductor is made with an apparatus comprising a pair of jaws 14, 15 having opposing operative faces across each of which extends a wide groove 17 and lands 18, 19 which are so spaced that the groove overlies the foil section of the conductor and the lands overlie the ends of said section. Two molybdenum conductors 1, 2, having foil sections 3, 4, are supported in a jig 5 between the jaws 14, 15. A quartz tube 12 is placed around the wires and held with its lower end approximately ¢ mm. above the surface of the jig to allow for the circulation of an inert gas therethrough during sealing. The lower end of the tube is softened by heat and flattened by the jaws. The jaws are retracted and the tube end reheated after which the jaws are advanced until the pressed quartz stops further movement. The lands 18, 19 restrict the flow of quartz in the longitudinal direction of the assembly. Lateral flow is prevented by a flange 22 on each jaw which, when the jaws are closed, overlies a corresponding cut away portion 23 on the opposing jaw. The top surface 20 of each jaw is preferably concave and the upper land 19 correspondingly curved so that a pair of arcuate grooves 21 (Fig. 2) are impressed on the quartz, leaving no cavities at the sealed end of tube 12. The lower lands 18 are straight and close the outer end of tube 12, pressing the quartz about the lead-in wires. Specification 713,828, [Group XL (a)], is referred to.
Patent GB-1111216-A (GB)
Title: Production of alkali metal phosphates
Inventor: SMITH RAYMOND ANTHONY
IPC: C01B25/30
Filed: 1966-02-04
Abstract: Alkali metal hemiphosphates, MH2PO4.H3 PO4, and mixtures with a mono alkali metal orthophosphate MH2PO4 having an M: P ratio in the mixture of between 0.5:1 and 0.75:1, are prepared by mixing anhydrous MH2PO4 with anhydrous H3PO4 in a molar proportion of MH2PO4:H3PO4 of from 1:1 to 3:1.  The MH2PO4 is preferably the sodium salt, though the potassium and lithium salts may be used. The acid which has a phosphorus pentoxide content of from 70 to 76% by weight is preferably added to the phosphate which may be in the form of a spray dried powder, and the reaction may be carried out in the presence of a heel of previously prepared hemiphosphate. The temperature of the reaction mixture is preferably below 40 DEG  C., but the mixture may be heated to a temperature within the range 50-70 DEG  C. and then cast, by cooling the slurry.
Patent GB-188607-A (GB)
Title: Improvements in the process of and apparatus for the manufacture of producer gas with simultaneous recovery of high yields of byproducts
IPC: C10J3/00
Filed: 1922-02-21
Abstract: 188,607. Beswick, W., and Rambush, N. E. Feb. 21, 1922. Producers.-In a gas producer the whole or part of the gases generated is caused to pass through a considerable depth, say 14 feet, of fresh fuel which is thereby distilled in stages and at low temperature so that the gases leaving the upper part of the producer have a temperature of between 150‹ and 300‹ C., and a calorific value of about 170 B.T.U. high yields of ammonia and low temperature distillation products being obtained. The temperature of the upper fuel zone may be controlled by removing part of the gases generated in the lower part of the producer prior to their reaching the upper zone. A central gas off-take comprises a bell situated near the top of the upper zone so that the ascending gases are distributed evenly over the cross-sectional area of the descending column of fresh fuel.
Patent GB-339879-A (GB)
Title: Improvements relating to sweetmeat, biscuit and like wrapping machines
IPC: B65B11/54
Filed: 1930-02-15
Abstract: 339,879. Southall & Smith, Ltd., and Hollies, J. Feb. 15, 1930. Packeting by wrapping-up. - In machines for wrapping sweetmeats, and of the kind in which the article is pushed, with a foil &c. wrapper, through an annular brush or flexible diaphragm to effect the wrapping, the delivery conveyer is arranged to be momentarily moved beneath the folding mechanism. The article d to be wrapped is brought over a vertically movable plunger o which carries it, with a wrapper p, through a brush r and into the grip of tongs f. The bottom edges of the wrapper having been folded up by any suitable mechanism, a slide e carrying a roller c, around which the delivery conveyer passes, is moved to the right by an arm h against the action of a resiliently held arm l carrying a roller k. The belt is thus extended in a longitudinal direction, as shown in broken lines, and the wrapped article is dropped on the extended portion and fed away to the left.
Patent GB-784536-A (GB)
Title: Improvements in or relating to the extraction and purification of hecogenin
Inventor: HOLT THOMAS ERIC
IPC: C07J71/00
Filed: 1955-02-21
Abstract: Crude hecogenin, i.e. hecogenin material obtained directly from the hydrolysis of the saponin, is purified by dissolving it in a lower alcohol (containing up to 5 carbon atoms in the molecule), removing undissolved impurities from the resulting solution and recovering hecogenin of increased purity, preferably by crystallization or by evaporation to dryness followed by dewaxing with a cold hydrocarbon solvent and subsequent crystallization from a lower alcohol.  The purified hecogenin material can then be acylated and the hecogenin acylate crystallized.  In examples: (1) Tanganyika sisal residues are refluxed with methanol, the filtered methanolic extracts evaporated to dryness, the residue treated with petroleum (100-120 DEG  C.) in the cold and the insoluble portion refluxed in methanol with charcoal and kieselguhr, filtered and cooled, giving purified hecogenin; subsequent treatment with acetic anhydride-acetic acid gives hecogenin acetate; (2) Jamaica sisal residues are extracted with hot methanol, the filtered extracts refluxed with charcoal and kieselguhr and again filtered, when hecogenin crystallizes from the concentrated filtrate; further purification is effected by recrystallization and acylation as in (1); (3) Tanganyika sisal residues are refluxed with methanol containing charcoal, the mixture filtered and concentrated, giving crystalline hecogenin which is dewaxed with petroleum and purified as in (1); (4) hecogenin acetate recovered from crystallization mother liquors from previous acylations is hydrolysed with aqueous methanolic NaOH and re-acetylated to give a pure product; (5) sisal residues are extracted with hot ethanol, the extracts treated with kieselguhr, filtered, evaporated and the residue slurried with petroleum yielding semipure hecogenin. Specification 768,459 is referred to.
Patent GB-374911-A (GB)
Title: Lighting device
IPC: F21V7/00
Filed: 1931-02-18
Abstract: 374,911. Vehicle &c. lamps. RIVIER, L., Canton de Vaud, Jouxtens-Mezery, Switzerland. Feb. 18, 1931, No. 5200. Convention date, Feb. 18, 1930. [Classes 75 (ii) and 75 (iv).] Lantern fronts.-In a vehicle or like lamp in which a portion of the light emitted by a source is concentrated by a series of reflectors to the focus of a parabolic reflector which projects a horizontal parallel beam, the' said focus approximately coincides with one surface of a screening member which is adapted to intercept those rays which would not pass through the said focus and which would be projected upwardly by the parabolic reflector. In the form shown in Fig. 1, the filament 2 of an electric lamp bulb is placed at one focus of a main ellipsoidal reflector 1, the second focus 3 of which lies on a small oblique reflecting surface 4, Fig. 3, reflecting the light on to .a paraboloidal reflecting surface 5 which projects a horizontal parallel beam through a vertically grooved central portion of a front glass 6. The reflecting surface 5 and a bracket 24, which carries the reflecting surface 4 and acts as a screening member, are mounted on a frame 7 having a central aperture 8 opposite the reflecting surface 5, the underside of the bracket 24 and the upper edge of the aperture 8 being painted a dull black to prevent undesirable reflections. The front of the lamp may be fitted with an ellipsoidal reflector 10 which is of slightly smaller radius than the main ellipsoidal reflector 1 and is adapted to cooperate directly with the reflecting surface 5 to produce a beam directed downwardly and to both sides of the vehicle. A screen 18 is placed in front of the electric lamp bulb and the socket 21 of the bulb is slidably mounted in a horizontal support 22 carried by the lamp casing and is locked in position by a set screw. The lamp is mounted on a transverse pivot 23 and may be tilted upwardly by a control member 20 against the action of a spring 19. In the form shown in Fig. 5 a number of light sources are arranged along the focal line of one or more main parabolic trough-shaped reflectors 11 which co-operate with correspondingly shaped reflecting surfaces 12, 14 having a common focal line 13 arranged in the same horizontal plane as, and adjacent the edge of, a flat screening member 16. The Specification as open to inspection under Sect. 91 (3) (a) states also that the main reflector may be paraboloidal, the auxiliary reflecting- surfaces may be replaced by a lens, and the front glass may be opaque with a central transparent portion provided with the vertical grooves. This subject-matter does not appear in the Specification as accepted.
Patent GB-1339235-A (GB)
Title: Machine for cross wedge rolling of workpieces
IPC: B21H1/18
Filed: 1972-02-03
Abstract: 1339235 Rolling VYZKUMNY USTAV TVARECICH STROJU A TECHNOLOGIE TVARENI 3 Feb 1972 [11 Feb 1971] 5203/72 Heading B3M A cross wedge rolling machine comprises a pair of work rolls 3, 4 each provided with wedge tools 5, 6 and a feeding device 7 for bar stock or blanks provided with a series of stations which can be brought successively into the rolling space between the rolls. The device comprises a cylindrical cage provided with a set of slots 8 to receive blanks 14 from a shoot 13. The cage is indexed one station for each revolution of the upper work roll 3 by engagement of dogs 12 on the roll and stops 11 on the cage. The cage is held in its indexed position by a spring-biased pin 10 engageable with depressions 9 on the end wall 7a of the cage. The blank is centred by ribs 21 on the upper roll. The rolling preferably takes place in the plane through the axes of the rolls 3, 4 but may be arranged to take place on either  side of the plane. The slots 8 may be defined by balls, or rollers (15), Fig. 3 (not shown) in the cage or the cage may comprise parallel rods (16a) Fig. 5 (not shown), between a pair of end discs. An intermediate blank (14a) can be positioned for initial rough rolling simultaneously with the finish rolling of the blank (14). The rods can be provided with guide rollers (18), (19), Fig. 7 (not shown), urged by springs (20) towards each other. The cage may have a cutting edge to sever the bar stock either before or after rolling.
Patent GB-577982-A (GB)
Title: Improvements relating to the drying of textile materials
IPC: D06M15/71
Filed: 1943-04-01
Abstract: Textile materials, such as fabrics, cords or yarns, which have been impregnated or analogously treated with aqueous preparations containing resin-forming substances are dried to a condition in which they are readily handleable and substantially free from tackiness, by contact with superheated steam at atmospheric pressure.  The impregnating composition may also contain rubber latex.  Viscose rayon cord is impregnated with an aqueous preparation containing rubber latex, sodium hydroxide, resorcinol and formaldehyde, with the object of improving the adhesion of the cords, when dried, to a vulcanizable rubber composition subsequently applied to the dried cords.  The cord so treated with the aqueous preparation is passed upwards through a vertically disposed tube having small apertures at the top and bottom for passage of the cord.  Steam at atmospheric pressure and at 140 DEG  C. enters the tube through an inlet near the bottom of the tube and passes out at the top.  The water content of the cord on entering the tube may be about 50 per cent; after emergence from the tube the water content is reduced to about 20 per cent in which condition it may be handled without risk of sticking. After emerging from the top of the tube, the cord passes through the air for several feet and is then wound on a bobbin.  A viscose rayon woven cord, comprising a plurality of cords of viscose rayon held by comparatively weak weft threads at intervals larger than the distance between the cords, is treated in a similar manner, the tube in which it is treated with superheated steam being slot-like in cross-section.  After emerging from the tube, the woven cord may be dried further by passage round heated metal rollers. Specification 577,985, [Group VIII], is referred to.
Patent GB-1028023-A (GB)
Title: Improvements in domestic oil-fired water-tube boilers
Inventor: HETHERINGTON MICHAEL ARNOLD
IPC: F24H1/40
Filed: 1962-02-12
Abstract: 1,028,023. Oil-fired water-tube hot-water boilers. NEWTON CHAMBERS & CO. Ltd. Feb. 12, 1963 [Feb. 12, 1962], No. 5309/62. Heading F4A. A domestic oil-fired water-tube hot-water boiler has a heating chamber containing a nest of vertical water-tubes 4 and is bounded by an outer protective casing 7, the inside of which is lined with heat-resistant insulating material 9. The vaporized oil is burnt in the pot 1 supplied with air by the fan 2, the hot gases and the flame rising into the heating chamber through the opening 19 and leaving by the opening 14 and the flue 8. The water tubes run between the headers 5, 6 which comprise rectangular outside walls formed by bending at right angles their lower and upper plates respectively, circular gas openings 14, 19, and circular openings in their respective lower and upper plates for receiving the water tubes. The respective upper and lower plates of the headers 5, 6 overlap the insulating material 9 on the inside face of which is superimposed an open-work metal lining 10. The insulating material may be mineral wool bonded by a heatresistant adhesive or resin-bonded glass fibre.
Patent GB-1096002-A (GB)
Title: Improvements in and relating to the treatment of shoe upper foreparts
Inventor: STADEN ALFRED ALEXANDER
IPC: A43D8/00
Filed: 1964-02-10
Abstract: 1,096,002. Boots &c. SHOE & ALLIED TRADES RESEARCH ASSOCIATION. July 24, 1964 [Feb. 10, 1964], No. 5410/64. Divided out of 1,096,001. Heading A3B. A shoe upper forepart is prepared for lasting by stretching the marginal edges of the forepart and setting this stretch. The forepart is stretched by clamping the forepart at the toe and waist regions in grippers 36, 37, 38 and then raising a mould having three lobes 44, 45, 46 which stretch the forepart along its edges but leave the central portion undisturbed. The grippers 36, 37 may be mounted on screws to impart additional stretch to the upper. The stretch is set by the application of heat or heat and moisture. Preferably the mould 44, 45, 46 is heated and moisture may be applied before stretching e.g. by mulling or during stretching e.g. by steam jets or a water spray.
Patent GB-124207-A (GB)
Title: Improvements in and relating to Dynamo Electric Machines.
Inventor: BURNHAM JOSEPH LLOYD
IPC: H02K13/10
Filed: 1919-03-05
Abstract: 124,207. Burnham, J. L. March 6, 1918, [Convention date]. Auxiliary protective or safety devices. - In dynamo-electric machines, barriers for preventing flash-overs or arcing between the brushes or between the brushes and parts of the machine consist of a radial insulating member 8 and an insulating member 7 arranged at an angle to the first. The inner edges of the members 7, 8 are arranged close to the commutator surface. In addition, a radial screen composed of fine and coarse mesh metal sheets may be secured to the member 8. The barriers are supported on members 13 arranged at each end of the commutator.
Patent GB-252459-A (GB)
Title: Improvements in and relating to sound-absorbing plasters
IPC: C04B28/32
Filed: 1925-02-27
Abstract: 252,459. Bakewell, B. Feb. 27, 1925. Porous compositions.-A sound-absorbing composition capable of being applied as a plaster to parts of buildings comprises granulated slag, magnesium oxide, and chloride, and a mixture of powdered aluminium or zinc and slaked lime, with or without glue solution. Suitable proportions are 200 gm. of magnesium oxide, 250 c.c. of magnesium chloride of specific gravity 1.17, 10 c.c. of glue solution, 560-900 gm. of slag, 2.5 gm. of aluminium, and 10 gm. of slaked lime. The slag may be replaced by an equal volume of other fillers, for example pumice. The filler should be ground to particles of similar size, and be free from fine dust.
Patent GB-1220229-A (GB)
Title: Improvements in or relating to fluid bearings
IPC: F16C29/02
Filed: 1968-02-02
Abstract: 1,220,229. Fluid bearings. GENERAL PRECISION SYSTEMS Inc. 2 Feb., 1968 [2 Feb., 1967], No. 5534/68. Heading F2A. A pressurized fluid bearing assembly comprises two bearing members 10, 12 each having a plurality of surfaces 14-20 lying in different planes parallel to the direction of movement, the surfaces of each member being complementary to the surfaces of the other and forming bearing fluid gaps between the surfaces, means being provided for introducing fluid under pressure into the gaps. Corresponding pairs of surfaces are preferably arranged in each member so that repeated deviations from the perfect configuration of each surface, resulting for example from the machining of the surfaces, tend to cancel out. The bearing surfaces may be defined by alternate grooves and lands, with the lands of one member being disposed in the grooves of the other member, and the members may be rectilinear and disposed parallel to one another, or circular (Fig. 4, not shown) and disposed concentrically with one another.
Patent GB-578130-A (GB)
Title: Improvements in scythes
IPC: A01D1/14
Filed: 1944-03-25
Abstract: 578,130. Scythe handles. MOUNTFORD, P. March 25, 1944, No. 5580. [Class 61 (i)] A scythe has mounted on the shaft 1 an auxiliary arm 3 by means of a pair of clips 5 pivoted on a bolt 9 and a second pair of clips 11 pivoted by bolts 13 to a bar 10 such that by suitable manipulation the arm and its clips may be adjusted forwards and backwards, or about the axis of the shaft 1 to vary the lift of the point of the blade, or the angle of the arm to the shaft may be varied. Adjustable hand-grips 4 are provided on the shaft and arm. Specifications 437,074 and 575,261, [both. in Group I], are referred to.
Patent GB-980530-A (GB)
Title: Process for the production of foamed polystyrene articles
Inventor: SKINNER STANLEY JOHN
IPC: C08J9/232
Filed: 1963-02-12
Abstract: 980,530. Moulding foamed polystyrene. MONSANTO CHEMICALS Ltd. Jan. 8, 1964 [Feb. 12, 1963], No. 5594/63. Heading B5A. In a process for the production of a foamed polystyrene article, pre-foamed polystyrene beads in a mould are subjected to the action of steam such that a steam pressure inside the mould of less than 7 pounds per square inch gauge is maintained for at least one minute, the steam pressure then being released and the article allowed to cool.
Patent GB-134150-A (GB)
Title: Improvements in Method and Apparatus for the Forming of Leather Leggings.
Inventor: WALLOEE EMIL
IPC: A43D8/00
Filed: 1919-03-06
Abstract: 134,150. Walloe, E., and Walloe, K. March 6, 1919. Leggings. - Relates to a former for leather leggings. A suitable piece of leather is soaked and bent into conical form and its edges are secured together. Tapered side members are then inserted and forced apart by tapered front and back members 6, 7. These four wedge members are shaped externally to the legging contour required. Finally, a central wedge 8 is driven in, the leather is dried, and the the wedges are removed.
Patent GB-1486163-A (GB)
Title: Electric switch
IPC: H01H23/08
Filed: 1976-02-12
Abstract: 1486163 Snap-action switches E MARQUARDT J MARQUARDT M MARQUARDT E MARQUARDT [trading as J & J MARQUARDT] 12 Feb 1976 [13 Feb 1975] 5609/76 Heading H1N An electric switch comprises a cam-type actuator 4, Fig. 1, engageable with a pivoted resilient wire contact 13 which is guided between parallel walls 8, 24, 25, Fig. 2, of the switch housing 1. The wire contact 13 is U- shaped and has the upper spring arm 38 engaged by the cam end 12 of the actuator. Contact tips 15 may be formed on one or both ends of the contact 13 for engagement with fixed contacts 16, (34), Fig. 3 (not shown). The actuator 4 may be translucent if an indicator lamp 29 or a glow discharge tube with resistor 29 are arranged in the housing 1. A fifth compartment wall 27 may be provided to support the resistor 28 and separate the indicator connecting wires 31 which pass through the base 19 for connection to gripping devices 32.
Patent GB-549851-A (GB)
Title: Improvements in or relating to the softening or purification of water
IPC: C02F1/52
Filed: 1941-05-02
Abstract: 549,851. Purifying water. MILLICAN, T., BANNISTER, H. W., and LIVERPOOL BORAX CO., Ltd. May 2, 1941, No. 5693. [Class 46] Plant for softening boiler-feed or other water with the aid of precipitants comprises a system of externally-heated upright or substantially upright pipes c connected in series by upper and lower headers a, b to provide a sinuous passage for a mixture of water and reagent, the arrangement being such that the repeated variations in velocity and direction. of flow at the headers and turbulance produced in the pipes cause precipitation of suspended impurities. As shown, water supplied by a pipe e and nagent supplied by a pipe d are circulated through the system by a pump h. Water is drawn off as required through a branch pipe f to a tank k, supplied with a coagulant by a pipe y, and the treated water flows thence through a filter n to an outlet pipe p. The pipes c are arranged within a heating jacket r fed with exhaust steam, flue gases &c. Specifications 405,368 and 408,871 are referred to.
Patent GB-921890-A (GB)
Title: Improvements in or relating to refuse incinerators
IPC: F23G5/00
Filed: 1961-02-16
Abstract: 921,890. Refuse incinerators. L. VON ROLL A.G. Feb. 16, 1961 [Feb. 16, 1960], No. 5848/61. Class 51 (1). In a refuse incinerator comprising a combustion grate spaced apart from and below a predrying grate, over which the combustion gases are deflected, the refuse is fed through a hopper 1 on to the predrying grate 2 and over a step member 3 on to the combustion grate 4. Combustion air enters through openings 5, and ashes and cinders are removed through an outlet shoot 6 on to a scraper conveyer 7. A projection 8 on the wall 10b of the combustion housing 10 which covers up to one third of grate 4 in projection deflects the combustion gases towards the predrying grate.
Patent GB-286301-A (GB)
Title: Improvements in or relating to methods for the separation from one another of bodies of different composition, shape or size
IPC: B07C5/344
Filed: 1928-02-24
Abstract: 286,301. Kolitsch, H., March 4, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Magnetic, electrostatic, and like separators.- In a, process for separating bodies of different shape &c. from one another, the bodies are passed through one or more differently cooperating magnetic and/or electrostatic fields and the reaction of the different strengths, produced by the bodies as they pass through the field, is utilized to operate a, mechanical separating device which deflects into different paths bodies differing from each other.
Patent GB-1301087-A (GB)
Title: Improvements in or relating to vices
Inventor: WORTHINGTON GEOFFREY GEORGE
IPC: B25B1/10
Filed: 1969-02-04
Abstract: 1301087 Vices SPEAR & JACKSON Ltd 8 April 1970 [4 Feb 1969] 5885/69 Heading B3B A vice has a fixed body 1 and a slide 3 of channel section movable by a threaded rod 7 engaging a replaceable hexagonal nut 8 located against axial and rotational movement within a recess 9 in the body. A spring 7 may be included for urging the parts apart.