baber/WOPTO huggingface dataset:
Patent GB-706096-A (GB)
Title: Manufacture of laminated articles using unsaturated polyester resins
IPC: C08L61/10
Filed: 1950-08-04
Abstract: 706,096. Compound sheet materials. BADER, E., and PARKYN, B. Oct. 10, 1951 [Aug. 4, 1950], No. 19562/50. Class 140 Laminated, resin-bonded, sheets or articles are made by assembling dry layers of porous or fibrous reinforcing material between moulds or cauls in a substantially airtight system, sucking up liquid unsaturated polyester resin into the space between the moulds or cauls thus impregnating the reinforcing material, and allowing the resin to polymerise. The application of the vacuum may cause the moulds or cauls to apply pressure. Curved articles may be made by laying the reinforcing material on the surface of a solid or hollow male mould A the base of which is completely surrounded by a trough E. A female mould B having a lower flanged edge which fits into the trough E, and provided with one or more tubes C carrying a sight glass and vacuum gauge, is laid over the reinforcing material. A cold-setting unsaturated polyester resin is poured into the trough E, vacuum is applied at C, and when the resin reaches the sight glass in tube C, the resin is allowed to polymerise. The mould can be made of cement, wood, metal, plaster of Paris, or wax, and the female mould of laminated material, metal, or rubber. The reinforcing layers may be cloth woven from cotton, sisal, hemp, silk, rayon, nylon, or glass, fabrics in which either the warp or weft is of metal, paper, or glass fibre mat, orientated or not. The resin may be derived from diallyl phthalate; a condensation product of maleic, fumaric, or itaconic acid or anhydride with glycol with or without saturated polybasic acids such as phthalic or succinic; or an ester of acrylic or methacrylic acid. The resins may be mixed with polymerisable monomeric compounds such as methyl or butyl methacrylate, styrene, or vinyl acetate shortly before use. Boat hulls, radomes, boxes, flat and corrugated sheets may be made.
Patent GB-1010976-A (GB)
Title: Forming shapes in woven fibrous cloth of thermoplastic material
IPC: B29C51/08
Filed: 1963-05-17
Abstract: 1,010,976. Moulding articles from thermoplastic fabrics. J. GILBERT. Aug. 17, 1964 [May 17, 1963], No. 19641/63. Heading B5A. An article is moulded from a sheet 23 of woven fibrous thermoplastic material, e.g. polypropylene or nylon, by a lower die 11 and cooperating upper dies 12a, 13a and 14a, which are independently slidable in tubular guides 15 carried by a cross bar 16, which is clamped to pillars 17, mounted on the lower die by nuts 19. The lower die carries concentric die cavities 12, 13, 14 and in operation the dies 12a, 13a and 14a are successively lowered into said die cavities to progressively deform the sheet from its middle to its outer regions. During the moulding the sheet is clamped by spring biased ring 20. The article is then heated to its moulding temperature and then cooled to enable the article to retain its new shape. The rigidity of the article may be improved by applying thermosetting resin prior to the moulding operation.
Patent GB-816432-A (GB)
Title: Improvements in cleaning arrangements for ships' tanks
IPC: B63B57/02
Filed: 1954-07-05
Abstract: 816,432. Cleaning ship's tanks. LAING & SONS Ltd., Sir J., and RIPLE, E. K. July 5, 1955 [July 5,1954], No. 19642/54. Class 138(1). A cleaning arrangement for ships' tanks comprises a washing water supply tank 1, an open topped sludge settling tank 3 in the supply tank, means 10 supplying used washing water to the sludge tank 3 through pipes A and A1, and a forced water ejector 4 whereby the sludge in the tank 3 can be forced overboard through valves 5. The water ejector 4 is fed from a stripping pump 12 coupled to a sea suction pipe H. A pipe D couples the tank 1 to a second tank 2, from which tank 2 water is taken by a pump 8 and passed through a heater 9 to a pipe to supplying the washing apparatus. The dirty used water returns via pipes J to the pump 10 and thence to the sludge tank 3. To remove accumulated oil from the tank 1 the pipe D is temporarily closed. The level of the water in tank 1 then rises to the level of a scum pan 6 and the pump 12 can be used to discharge this oil overboard or pass it through an oil-water separator to an adjacent tank. The two tanks are arranged on opposite sides of the ship.
Patent GB-613762-A (GB)
Title: Improvements in or relating to luminescent screens and methods of manufacturing suchscreens
IPC: H01J9/22
Filed: 1946-07-01
Abstract: 613,762. Luminescent screens. RAULAND CORPORATION, and SZEGHO, C. S. July 1, 1946, No. 19672. Drawings to Specification. [Class 39 (i)] A double layer of luminescent material is applied to the screen of a cathode-ray tube by first applying by pouring or spraying a very thin coating of a binder such as phosphoric acid, drying or evaporating the solvent, dusting or spraying it with a fluorescent powder, then introducing into the tube a settling solution, e.g. of waterglass, containing the same or another fluorescent powder, preferably of finer grain, so as to cover only the screened portion and allowing the second layer to form by settling. Baking of the screen may be carried out at any stage, but preferably after dusting or spraying on the first luminescent material. The layers may have the same or different characteristics, i.e., after-glow, colour, &c.
Patent GB-147702-A (GB)
Title: Improvements in or relating to the production and control of high frequency currentsin static transformers with auxiliary magnetisation, especially for use in wireless signalling
IPC: H03C1/10
Filed: 1920-07-08
Abstract: 147,702. Ges. fiir Drahtlose Telegraphie. Feb. 26, 1914, [Convention date]. Frequency, changing.-In wireless transmitting-systems of the type in which alternating current is raised to a higher frequency by static transformers with auxiliary magnetization, and in which the amplitude of the resultant high-frequency oscillations is varied by varying the auxiliary magnetizing current by means of a microphone, there is interposed between the auxiliary magnetizing-windings and the apparatus supplying them with continuous current, a system which only exerts a choking action on high-frequency currents of a definite period. In the arrangement shown, the frequency of the current from the alternator 1 is raised in two stages A and B before being supplied to the aerial 2. In series with the generator 20, which supplies the auxiliary magnetizing-current to the windings 17 and 18 of the second unit B, is inserted a choke 21 which prevents the low-frequency microphone impulses from passing through the current source 20. The selector circuit 22 is tuned to the period of the high-frequency currents induced in the windings 17 and 18, and prevents them from passing through the miorophone 19 or the generator 20. Means may be provided for automatically correcting the tuning of the circuit 22 on alteration of the period of the high-frequency currents due to variation in the speed of the generator 20. For instance, the generator may be provided with a centrifugal governor which controls a variometer inductance or the movable plates of a condenser. Specification 29946/13 is referred to.
Patent GB-516677-A (GB)
Title: Improvements in or relating to oil fuel burners
IPC: F23D11/10
Filed: 1938-07-04
Abstract: 516,677. Liquid fuel burners. GENERAL GAS APPLIANCES, Ltd., COLEMAN. F. S., and GRAFTON, R. F. O. July 4, 1938, No. 19708. [Class 75 (i)] A burner apparatus in which oil fuel is atomized by low pressure steam generated by the heat of the burner comprises a fuel spraying jet shown in Fig. 5 discharging into a primary combustion chamber formed by a cone r, Fig. 1, leading to a secondary combustion chamber formed by a cylinder p in which is arranged a steam generator consisting of a stainless steel tube 1. The tube l passes horizontally through a box q containing heat insulating material and surrounding the cone r to the secondary combustion chamber where it is bent first upwardly and then horizontally. The horizontal portion m is connected by a smaller pipe n to the steam chamber of the spraying jet. The pipe l is loosely filled with steel wool, coiled wire gauze, wire gauze discs, or perforated metal discs. Air is 'supplied through a rectangular casing s open at its rear end and passes to the flame through apertures t beneath a deflector plate u. The burner jet comprises a cylindrical body a formed with a central fuel passage. having a small discharge. orifice e and with six passages i parallel to the fuel passage and leading from a steam chamber j to an adjustable cap g formed with a conical orifice surrounding the orifice e. Suitable dimensions are stated in the Specification. A cover lined with sound-deadening material and causing a change of direction of the incoming air current may be provided at the outer end of the burner. The cover may be fitted with air-regulating means. The water and. oil supplies may be regulated by float operated valves and the fuel supply may be controlled by a valve operated by a diaphragm subjected to the steam pressure.
Patent GB-636453-A (GB)
Title: Improvements in and relating to dies for coating ribbon wire
IPC: B05C3/12
Filed: 1945-08-01
Abstract: 636,453. Coating wire. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 1, 1945, No. 19736. Convention date, Aug. 9, 1944. [Class 140] A wiping die for coated ribbon wire comprises two inclined side-plates enclosing a V-shaped space provided with extensions to form a parallel walled wiping gap at the narrower end of the V-shaped space, and is floatingly-supported in the coating apparatus. Wires 3, Fig. 2, from the coating bath pass through the inclined plates 15, 16 and the parallel extensions 17, 18 of die 6 and on through an oven. The plates 15, 16 are secured to end-plates 19, 20, the upper portions of which are provided with shaft stubs 25 attached to the inner race of a ball-bearing 26, the outer race of which engages a track formed by U-shaped bracket 7 having parallel lower and upper horizontal legs and secured to the oven wall. A plate 28 prevents the die turning about the axis of the wire. A die permitting various thicknesses of coating, Fig. 3, comprises supporting-plates 29, 30 provided with pairs of wiping fingers 33. The width of gap 39 is varied by moving the fingers in slots 40, fine adjustment being provided by screws 41.
Patent GB-1037882-A (GB)
Title: Light controlling devices
Inventor: HOLMES JOHN GUYSCLIFFE
IPC: F21V5/00
Filed: 1964-05-12
Abstract: 1,037,882. Light refracting plates. HOLOPLANE Ltd. May 11, 1965 [May 12, 1964], No. 19759/64. Heading F4R. A light controlling panel has one plain surface and on the other surface a pattern of recesses 12 each tapering towards but terminating short of an apex, the termination bearing a projection 16 tapering to an apex 17, the recess being pyramidal and the projection conical or vice versa and the angle of the sides of the recesses and projections to the general surface of the 2 panel being approximately equal to - (90 y degrees-c) where y is an odd integer greater than 1 and c is the critical angle of the material of the panel. The edges of the recesses may be contiguous or separated by small plain areas and narrow flat areas may also be provided in the terminations of the recesses adjacent the bases of the projections. In the preferred form the recesses are of equilateral triangular pyramidal form with conical projections at the bases, the shapes being so chosen that the apices of the cones lie in the plane of the outer edges of the recesses.
Patent GB-1174503-A (GB)
Title: Receiver for F.M. Signals.
IPC: H04B1/26
Filed: 1967-04-28
Abstract: 1,174,503. Frequency modulation receivers. INTERNATIONAL STANDARD ELECTRIC CORP. 28 April, 1967 [30 April, 1966], No. 19776/67. Addition to 1,163,330. Headings H3A and H3R. In a F.M. receiver as described in Specification 1,163,330, the frequency discriminator responds to both the leading edge and the trailing edge of the rectangular wave I.F. signal, thereby reducing phase errors caused by interference and the limiting process. In Fig. 2, the I.F. source 1 produces push-pull outputs at 2 and 3; a positive excursion at 3 charges capacitor 5 through diode 7 and a negative excursion discharges the capacitor through transistor 9. In this way pulses of charge are applied to the output capacitor 11 at each leading edge and trailing edge of the input through the transistors 8 and 9 alternatively. The ratio of the magnitudes of the outputs at 2 and 3 may be adjustable to minimize the effect of interference. In a modified circuit, Fig. 3 (not shown), one of the transistors is omitted and the capacitors 4 an 5 are connected to the output transistor through diodes (12 and 13).
Patent GB-184167-A (GB)
IPC: C04B20/10
Filed: 1922-07-19
Abstract: 184,167. Borle, G. Aug. 2, 1921, [Convention date]. Plastic compositions containing fibres and cement.-A filler such as sawdust, broken stones, fossil dust, asbestos dust, or quartz meal, a binder such as cement, and a bituminous substance such as tar oil, tar, or pitch are mixed together dry and then added to a suspension of silicated fibres in water. The fibres, which may be hair, wool, cotton, cellulose, asbestos, or the like, are prepared by treating with sodium silicate solution and a precipitating agent such as milk of lime, aluminium sulphate, or magnesium chloride. The Specification as open to inspection under Sect. 91 (3) (a) states also that metallic oxides or salts, e.g. iron compounds, may be added to the silicating bath, that the bituminous ingredient may be omitted or replaced by resin or other soaps, and that instead of sodium silicate a solution of hydrofluosilicic acid partly decomposed by a metallic oxide or carbonate may be used. This subject-matter does not appear in the Specification as accepted.
Patent GB-1214110-A (GB)
Title: Heating system
Inventor: STRUYK ANTHONY ALBERTUS
IPC: F24D5/04
Filed: 1969-04-18
Abstract: 1,214,110. Air heating stoves, gas fired heaters. RESEARCH INSTITUT "SESTO" N.V. 18 April, 1969, No. 19878/69. Headings F4S and F4W. A "Brick Central Unit" comprises a heating source 10 in outer casing walls 1, 2 forming part of adjoining rooms having inlets 13 for air to be heated and outlets 14 for heated air to pass into the rooms. The casing is divided by a horizontal, heat insulating partition 7 into upper and lower chambers, the combustion gases from a gas or liquid fuel fired heater 10 passing into the upper chamber through a vertical flue 11 projecting through the partition. The upper chamber communicates with a smoke duct 17 having an opening which has less cross-sectional area than an air inlet opening 18 to act as a check draught. As shown, the opening 18 is formed at the upper end of a tube 19 projecting through the partition 7 and passing under the floor 5 but, in a modification, the opening 18 may comprise an aperture in a wall of the upper chamber. A heat exchanger 12 may be formed in the flue 11. In a modification, a second heat source for a hot water supply may be mounted in the lower chamber, which source has its own flue projecting upwardly through the partition into the upper chamber.
Patent GB-140003-A (GB)
Title: Improved water-heater
IPC: F24H1/40
Filed: 1919-08-13
Abstract: 140,003. Herbert, M. E. Aug. 13,1919. Internally-fired boilers.-The headers 16, 17 of a water-tube section, Fig. 3, are divided horizontally by partitions 18, and the corresponding compartments of the headers are connected together by separate sets of water-tubes 19, the compartments being connected to the main water space of the boiler through nipples 21 arranged in opposite sides of the section. The elements shown in Fig. 1 are connected to the water space between two shells 1, 5, which enclose a furnace chamber 7 and a rear heating-chamber. The rear wall 6<a> of the fuel magazine is formed by a depression in .the inner shell. A water chamber 15 extends across the heating chamber at the rear of the grate. The water-tube elements are covered with brick tiles 22.
Patent GB-836998-A (GB)
Title: Pulverised coal burner
IPC: F23L17/00
Filed: 1956-06-27
Abstract: 836,998. Pulverized-coal burners. WAAGNER-BIRO A. G. June 27, 1956 [July 1, 1955], No. 19944/56. Class 75(1) A pulverized-coal burner comprises a spiral shaped swirl chamber 2 having a tangential air inlet 3 extending undivided the ful length of the chamber and a fuel conduit 1 opening into the swirl chamber at a point where a negative pressure exists so that the fuel is sucked out of the conduit 1. The conduct 1 may open within the swirl chamber as shown or flush with the outlet of the chamber. The fuel conduit may have a swirl device.
Patent GB-773604-A (GB)
Title: Xerographic image formation
IPC: G03G15/18
Filed: 1954-07-08
Abstract: 773,604. Photographic electrostatic images. HALOID CO. July 8. 1954 [July 16, 1953; June 4, 1954], No. 19995/54. Class 98(2) An electrostatic image is formed on an insulating receiving surface by placing the latter in close proximity to a second surface which is of material the conductivity of which varies in accordance wth incident radiation, the surfaces being separated by an air gap of not less than 2. microns, exposing the second surface to a pattern of radiation and applying an electric field between the surfaces. The second surface may be a photoconductive layer and the field may be applied by placing conductive layers behind the insulating and photoconductive layers and connecting a. source of potential between the conductive layers. Exposure may be to light or X- rays. In order to expose the photoconductive layer to light, a pattern -or "negative" may be laid on the conductive layer covering the insulating receiving surface arid' the whole radiated with light or an image may be projected on to the layer, but in either case the insulating sheet and conducting layer must be transparent. Alternatively, the conductive backing of the photoconductive layer can be transparent and the light pattern projected through from. that side. Conductive glass or conductively coated glass may be used for the transparent electrodes 'or such electrodes may comprise a fine wire screen embedded in a plastic sheet or a thin partially transparent metal foil or a base of glass: or transparent film. Alternatively a conductive liquid or ionized gas may be used. The photoconductive layer may be of anthracene, sulphur or selenium but other substances with a higher dark decay rate may be used. The insulating receiving sheet may be a polystyrene film. The photoconductive material may be dispersed in a binder. Fig. 2 shows the production of an electrostatic image on a roll of insulating film 27. A xerographic plate 10 comprising a photoconductive layer 12 over a conductive backing 11 is supported on member 17. In close proximity to the plate is a transparent electrode 22 and on top is a document 24 to be copied. Exposure is made by means of lamp 25 and' at the same time a high potential is applied between electrode 22 and backing 11 from a source 31. After exposure, the film 27 (which now carries the image), is passed through a processing station to develop and fix the image. In a further embodiment, matter is copied by projection from a moving "negative" film on to a moving insulating film positioned over a xerographic member in the form of a revolving conducting cylinder having a photoconductive coating. Another example shows the use of X-rays. The theory of formation of the image by transfer of charge from the exposed photoconductive layer to the insulating surface is discussed. Specifications 672,767, 679,715 and U.S.A. Specification 2,277,013 are referred to.
Patent GB-1495796-A (GB)
Title: Transfer system with tailored illumination
IPC: B65H5/02
Filed: 1975-05-13
Abstract: 1495796 Electrostatic transfer XEROX CORP 13 May 1975 [20 Aug 1974] 20029/75 Heading B6C An electrostatic transfer apparatus comprises a partially shielded light source 41 located in a biased transfer roller 19 under a photoconductive transport belt 12, the light being directed to irradiate the nip and post-nip areas only; the nip being between belt 12 and an electrically biased xerographic drum 20. The transfer roller 19 and belt 12 may be coated with dielectric protective layers. In another embodiment a further light source illuminates the belt simultaneously with charging thereof. A further embodiment has no belt but uses a thick photoconductive surface on the transfer roller as part of the transport means.
Patent GB-898331-A (GB)
Title: Mineral fibre laminate and method of making same
Inventor: MILLER NORMAN TAYLOR
IPC: E04C2/16
Filed: 1958-06-23
Abstract: 898,331. Laminates. L.O.F. GLASS FIBERS CO. June 23, 1958, No. 20047/58. Drawings to Specification. Class 140. A laminate comprises a layer of glass or other mineral fibres of low density bonded with a thermosetting resin having on one or both sides a layer of similar and similarly bonded fibres of higher density. The fibres are preferably laid to lie generally parallel in one or more directions in the individual layers. The resin used may be in solution or powder form and may be a condensation product of formaldehyde with phenol, urea, melamine, or dicyandiamide, or an unsaturated polyester. The layers may be separately cured under pressure and bonded together with one of the above resins, or the uncured denser layer or layers may be laid on the cured low density layer and bonded thereto, and simultaneously cured, with heat and pressure. The outer layer may be embossed or the laminate shaped in a mould. The products may be used for acoustic or heat insulation in buildings, as coverings for pipes, including Y and T pipe joints, or may be surfaced with polyvinyl resin sheet and be used for upholstery and internal linings for cars and the like.