baber/WOPTO huggingface dataset:
Patent GB-457884-A (GB)
Title: Improvements in or relating to the manufacture of bricks or the like
IPC: B28B11/08
Filed: 1935-06-04
Abstract: 457,884. Sanding bricks &c. during moulding. ROGERS, G. E., 1, Holt Avenue, Moreton, Cheshire. June 4, 1935, No. 16165. Addition to 426,444. [Class 87 (ii)] In the apparatus described in the parent Specification, means are provided for periodically moving the roller means out of contact with the clay strip. The spindles 19 of the horizontal brushes are resiliently mounted in the reciprocating carriage 11 by springs 26 and the vertical brushes 20 are similarly mounted and are connected together by frames 31. The spindles carry anti-friction rollers 46, 30 which engage ramps 27, 33 formed on rails 32 fixed to the machine frame. The ramps move the brushes out of contact with the clay strip 16 at each end of the stroke of the carriage 11 and the brushes continue to rotate thus presenting a fresh surface to the clay strip. The spindles of the rollers 30 are mounted adjustably on screws 35. Vertical adjustment of the brushes 18 may be provided by arranging shims between the brackets 36 and rails 37. Pawl-and-ratchet mechanism may be provided for rotating the brushes when clear of the strip. A roller dipping in oil may be mounted to lubricate the under face of the strip 16. According to the Provisional Specification the brushes may be carried by rocking levers resiliently mounted on the frame 11.
Patent GB-567570-A (GB)
Title: Improvements in electric metal vapour converters having interphase transformers
IPC: H02M7/06
Filed: 1941-12-15
Abstract: 567,570. Converting. GENERAL ELECTRIC CO., Ltd., and FRIEDLANDER, E. Dec. 15, 1941, No. 16168. [Class 38 (ii)] In a polyphase converter employing an interphase transformer 7, a condenser 9'is associated with the latter to form therewith a parallel resonance circuit tuned to at least one of the frequencies to which it is subjected. Thus, failure of the interphase transformer at light loads is prevented by magnetizing current compensation. A second condenser 10, Fig. 2, shunted by an inductance is provided so that the combination is resonant at the operating frequency of the interphase transformer and also at a harmonic thereof. In a further modification, a condenser is connected across a winding separate from but on the same core as the interphase transformer and an air gap is provided in the core where it is embraced by the winding across which the condenser is connected.
Patent GB-612592-A (GB)
Title: Improvements in and relating to boiling vessels
IPC: B01B1/06
Filed: 1946-05-29
Abstract: Distillation flasks &c. are prevented from "bumping" during boiling, by adding a surface coating repellant to the liquid to be boiled. The coating may be of a silicone, or a material polymerized by heating, or the surface of the vessel may be reacted with a methyl chloro silane.
Patent GB-1472431-A (GB)
Title: Shaped and fired refractory microspheres
IPC: C01G23/047
Filed: 1974-04-11
Abstract: 1472431 Reflectors MINNESOTA MINING & MFG CO 11 April 1974 [16 April 1973] 16389/74 Heading B2E [Also in Division C1] Reflective signs are made by applying to a substrate, transparent microspheres of 1-200 microns diameter containing more than 50% anatase TiO 2  and optionally oxides of Fe, Al, Cr, Co and Si (see Division Cl). In Example 7, polyester sheet is coated with a tacky vinylidene fluoride-perfluoroproprene fluorinated elastomer in which a layer of microspheres is embedded and then the exposed surfaces are vapour plated with Al. In Example 8, polyacrylate treated paper is coated twice with an alkyd resin, a monolayer of microspheres, a coating of polyvinyl butyral and then vapour deposited Al. The assembly may then be stripped from the paper. In Example 9, polyacrylate treated paper is coated with a blend of nitrile rubber, phenolic resin and Al powder and the microspheres are embedded therein.
Patent GB-787962-A (GB)
Title: Improvements relating to mass spectrometers
IPC: H01J49/38
Filed: 1955-06-08
Abstract: 787,962. Automatic frequency control systems. GENERAL ELECTRIC CO. June 8, 1955 [June 8, 1954], No. 16483/55. Class 38 (4). [Also in Group XL (a)] In a mass spectrometer 10 of the radiofrequency ion resonance type (see Group XL (a)] the frequency of the applied R.F. field or the strength of the magnetic field is modulated so as to cause the value of the m./e. ratio at which ion resonance is obtained to fluctuate about a nominally preselected value, and an error signal derived from the variations in the amplitude of the ion current is used to correct any errors in the frequency of the applied R.F. field automatically. The ion current is converted to a voltage and the resultant voltage amplified in amplifier 12. The amplified voltage is measured by recorder 13 and also fed to an A.C. detector 15 for converting the pulsating voltage to an A.C. ripple current. The resultant A.C. is amplified at 16 and fed to a phase discriminator and amplitude detector 17 where the amplified A.C. is referenced against the phase of the modulation from frequency modulating signal device 14 and a feedback signal is then sent to the R.F. oscillator 11.
Patent GB-748596-A (GB)
Title: Improvements in or relating to furnaces for the heat treatment of materials
IPC: F27D99/00
Filed: 1952-07-01
Abstract: 748,596. Tunnel furnaces. HEURTEY & CIE. July 1, 1952 [Feb. 8, 1952], No. 16509/52. Class 51(2). A tunnel furnace is divided into sections or closed at its ends by a thin gaseous curtain comprising gases withdrawn from the furnace by a fan 11 through ports 7, a duct 9 and a cooler 10, and re-introduced into the furnace through roof nozzles 13 to form the gaseous curtain. In a modification, Fig.2 (not shown), the gases pass from the furnace into a side flue under suction of a jet discharging into a venturi leading to a top header from which the gases pass through roof nozzles to form the gaseous curtain in the furnace. A number of sets of roof jets may be closely spaced together, each fed by its own venturi jet, which jet may be replaced by a burner.
Patent GB-170336-A (GB)
Title: Improvements in or relating to suction gas plants
IPC: C10J3/72
Filed: 1920-06-18
Abstract: 170,336. Paterson, J. H., Tulloch, T. G., an'd Smith, D. J. June 18, 1920. Plant.-In a suction gas plant installation gas is drawn from a producer A by a fan E and delivered to an engine or other apparatus through a pipe G' the gas being mixed with air to form a combustible mixture, at G. Scrubbers Care located between the fan and the producer. To ensure the passage of air and steam, through the producer when the supply of gas is throttled by closing the valve F<2>, gas is delivered to the atmosphere through a valve F<1>. According to a modified construction, the scrubbers C are dispensed with and the gas from the pipe E' may be returned through a by-pass to the suction side of the fan when the valve F<2> is more or less closed. A valve in the by-pass, and the valve F<2> may be connected together to move simultaneously. A further modification is described in which the air and gas mixing-device G is located on the suction side of the fan. The fan shown in Fig. 4 comprises a hollow valve E<4> in which collects tar and other impurities thrown off by the fan blades. A wire cage or gauze E<6> may surround the fan blades, and a baffle may be provided at x.
Patent GB-1049213-A (GB)
Title: Production of chlorinated hydrocarbons
IPC: C07C17/156
Filed: 1965-04-21
Abstract: Chlorinated hydrocarbons are obtained by feeding an aliphatic C1- 4 hydrocarbon or partially chlorinated hydrocarbon, an oxygen-containing gas and HCl and/or Cl2 into a fluidized bed of metal halide particles, the oxygen-containing gas being introduced through conduits to the fluidized bed at a distance removed from the level of introduction of the other reactants such that the oxygen in the conduits traverses the zone in which the other reactants are in contact with the metal halide particles and is thereby preheated. Examples prepare CH2ClCH2Cl from C2H4; C2Cl4 and C2HCl3 from CH2ClCH2Cl; vinyl chloride fro C2H6; CCl4 and CHCl3 from CH4; and C3 products from C3H6.  Reference has been directed by the Comptroller to Specification 904,084.
Patent GB-731057-A (GB)
Title: Improvements in or relating to devices for protecting water meters and similar liquid containers against damage caused by freezing
IPC: G01F15/10
Filed: 1952-07-04
Abstract: 731,057. Pressure-relieving devices for fluids. COMPAGNIE POUR LA FABRICATION DES COMPTEURS ET MATERIAL D'USINES A GAZ. July 4, 1952 [July 9, 1951], No. 16915/52. Class 135. In a water meter or similar liquid container, damage due to the excessive pressure developed by freezing of the water is prevented by a safety device which ruptures to relieve the pressure, the device comprising a frangible member 7, a rigid disc 11 of small dimensions, and a pliable but impermeable membrane 10. The safety device is clamped between the meter casing and a well 15 which holds the water that escapes after the device has ruptured.
Patent GB-1309482-A (GB)
Title: Preparation of organic isocyanates from organic nitro compounds
IPC: C07C49/00
Filed: 1970-04-09
Abstract: 1309482 Organic isocyanates OLIN CORP 9 April 1970 [16 April 1969] 16959/70 Heading C2C Organic isocyanates are prepared by reacting an organic nitro compound with carbon monoxide at elevated temperature and pressure in the presence of a noble metal based catalyst and adding to the reaction mixture an effective amount of at least one organic carbonate of the formula where R and R<SP>1</SP> each represent an alkyl C 1-18 , cycloalkyl C 3-12 , aryl C 6-12 , alkyl C 1-12 -substituted aryl C 6-12 , fluoro-, chloro- or bromo-substituted aryl C 6-12  radical or of the formula where R<SP>11</SP> is an alkylene C 2-6 , 1,2-cycloalkylene C 5-12  or orth-arylene C 6-10  radical. Examples describe the reaction of 2,4-dinitrotoluene. A large list of starting materials is given including hydroxy, carboxy, cyano, halo, sulphone or thio-substituted nitro compounds.
Patent GB-208732-A (GB)
Title: Improvements in steam heated drying cylinders for drying fabrics and other fibrous materials, applicable for other purposes
IPC: F26B13/18
Filed: 1922-06-20
Abstract: 208,732. Roberts, G. P., and Roberts, Ltd., R. R. June 20, 1922. Rollers or cylinders, hollow. - A bucket device for draining a steamheated rotary drying-cylinder a is formed integral with the end of the cylinder. The bucket has a central chamber d in line with the hollow discharge trunnion and passage h opening into the chamber d from the outer ends of the bucket, the inner ends h<1> of the passage being arranged so as to prevent water running back from the trunnion into the bucket. A central partition k is arranged across the chamber d in line with the axis of the trunnion and adjacent to the ends h<1> of the passage h. In another form the ends h<1> of these, passages extend beyond the axis of the chamber d. Reference has been directed by the Comptroller to Specification 14443/92.
Patent GB-1137766-A (GB)
Title: Image resolution
IPC: G03G5/022
Filed: 1966-04-18
Abstract: 1,137,766. Electrophotography. RANK XEROX Ltd. 18 April, 1966 [20 April, 1965], No. 16981/66. Heading HIK. A xerographic plate for deformation imaging comprises a conductive substrate having a layer of vitreous selenium thereon, an electrostatically deformable layer above the selenium layer, and a layer comprising an electron donor material and a resin overlying the selenium layer. The deformable layer and the layer containing the resin and electron donor may be the same or distinct layers. The conductive substrate may be A1, brass or paper or plastics sheet with a conductive layer thereon. The electron donor may be SnCl 2 , FeCl 2 , nigrosine, N,N<SP>1</SP> - diphenyl - p - phenylene diamine, indigo blue, methylene blue, or tri-n-butyl amine. The resin binder preferably has a resistivity of 10<SP>14</SP> ohm cm. and may be vinyl chloride/acetate copolymer, cellulose acetate butyrate, polymethacrylate, polycarbonate, copolystyrene-acrylonitrile or polyurethane. The deformable layer may be made of glycerol esters of hydrogenated rosin, e.g. " Staybelite " (Registered Trade Mark), polystyrene, vinyl polymers, polyethylene, phenol-aldehyde resin, acrylic esters and copolymers of styrene with vinyl toluene or methyl styrene.
Patent GB-1037290-A (GB)
Title: Double-twisting device for textile yarns
IPC: D01H7/86
Filed: 1964-04-24
Abstract: In a two-for-one twister, during normal operation, the package holder 10, 11, 13 Fig. 1, (not shown), is prevented from rotating by a weight 43, but at the start or finish of an operation, or when the unwinding operation is disturbed, the effect of the weight is assisted by rotating mechanical means.  As shown, the holder is mounted on two sets of bearings; 12 between the holder and the spindle 3, and 15 between the holder and a ring 16 which is rotated from the spindle about an axis which is eccentric relatively to the spindle.  When the apparatus is functioning normally with the yarn ballooning at 39 clear of the holder, the weight is sufficient to immobilize the holder.  At the start &c. of an operation, the yarn takes a path 42 in contact with the side of the holder.  The weight is then assisted by the fact that the cam tends to rotate about the two sets of bearings; as these are on different axes, the cam is held stationary.  The ring 16 is driven from a ring 20 which is driven from the spindle 32.  The rings are equally eccentric of the spindle, and are interconnected by fingers, e.g. 21, each in an eccentric bore in a member 6 which has the thread-outlet 6a.  Each finger is fixed in ring 20 and is mounted in a resilient mesh 31 in ring 16.  Ring 20 is driven from spindle 2 by a pin 23 connected to the spindle, Figs 7-10, (not shown), and slidably mounted in a bush 24 which can turn in a recess in the part 20.  Springs are provided between the part 6 and the parts 16 and 20.  Sealing arrangements for the rotating parts to exclude dust &c. and lubricating ducts 32, 28, 35 are provided. The ring 20 rotates in bearings 19 in a ring 18 fixed in the frame concentrically of the spindle which itself rotates on bearings 4 and 5.  The spindle is connected to a driving pulley 7 by a clutch comprising a male part 45 spring-urged to engage a female part 44. When a handle 51 is rotated in a path at right angles to the spindle, a cam-ring 49 is rotated to rise on fixed studs 50 and move parts 52, 45a together so that the clutch parts are disengaged.  The handle is acted on by an adjustable spring 61 which tends to move it to separate the clutch-parts, but which is locked by a detent which can be freed by hand or by a solenoid.
Patent GB-970692-A (GB)
Title: Improvements in or relating to cattle dips
IPC: A01N47/22
Filed: 1963-05-01
Abstract: An aqueous cattle dip comprises N-methyl-1-naphthyl carbamate and 0.15 to 1% based on the water and an alkali metal dihydrogen phosphate, ammonium dihydrogenphosphate, superphosphate or triple superphosphate.
Patent GB-1080858-A (GB)
Title: Improvements in or relating to bearings for the spindles of high speed machines
IPC: F16C19/54
Filed: 1966-04-19
Abstract: 1,080,858. Bearings. ZVL-VYZKUMNY USTAV PRO VALIVA LOZISKA. April 19, 1966 [April 21, 1965], No. 17084/66. Heading F2A. A spindle 1 of a high-speed machine is supported in a housing 2 by a pair of ball-bearings 5, each of which is provided with a cage 6 and has race-grooves 3 and 4 formed in the spindle 1 and in the housing 2. The housing is closed at each end by a closure member 7. In theory, the grooves 3 and 4 form parts of figures generated by the rotation of respective circles about the spindle axis, the centres S of these circles lying on a line P which includes an angle of between 5-30 degrees with a line O normal to the spindle axis. The line P intersects the spindle axis at A, the position of the latter being on the opposite side of the pertaining ball - hearing to the mid-point of the housing 2.
Patent GB-1382094-A (GB)
Title: Method of maintaining the required shape of a structure
IPC: H01Q15/14
Filed: 1972-04-13
Abstract: 1382094 Aerials H C HUSBAND 6 June 1973 [13 April 1972] 17098/72 Heading H4A In order to maintain the required shape of a radio reflector or like structure during use in spite of varying deforming forces caused by changes in the operating conditions, measurements of such changes are made and are applied to a control means which is arranged to develop from a storage means a plurality of control signals for application to actuators which produce mutual displacements between portions of the structure in compensation If the distortions caused by said forces. The storage means develops said displacements from previously measured values of the distortions produced by various conditions of operation. An aerial assembly 1 has a large reflector comprising sheets 2 of suitable reflective material which are mounted on individual frames 3. Each of said frames is supported from a main framework 4 through the intermediary of a plurality of actuators 5. The framework 4 comprises a circular rim 4a, arms 4b, and a hub 4c. The aerial assembly 1 has a mounting 6, which provides for its rotation in azimuth and in elevation. Signals corresponding to the rotational displacements of the aerial assembly are transmitted over a link 7 to a control device 8, which is also fed with signals corresponding to wind speed and direction (devices 9, 10), temperatures of different parts of the structure (devices 11, 12) and air temperature and barometric pressure (devices T, P). The control device 8 provides output signals for controlling each of the actuators 5 to reduce or eliminate distortion of the reflective surface caused by changes in the monitored operating conditions. The actuators 5 may be in the form of hydraulic jacks, and they may be operated in stepped manner by pulsed output signals. The control device 8 may comprise analogue computing means or may alternatively comprise a programmed computer in which each programme corresponds to a different set of operating conditions.
Patent GB-599673-A (GB)
Title: Improvements in or relating to sound-absorbent panels
IPC: G10K11/16
Filed: 1943-10-18
Abstract: 599,673. Building units. BYTHWAY, A. S., NEELANDS, A. R., and CEMENTATION CO. (SUBSIDIARIES), Ltd. Oct. 18, 1943, No. 17123. [Class 87(i)] [Also in Group XIII] A rectangular wooden frame B, which can be slid between steel stanchions A, is provided with intersecting p a r t itions C, D forming square cells E which are packed with granular mineral material such as vermiculite. The partitions may be of cardboard, plywood, or metal, and the resulting panel may be covered by perforated sheets of metal, plywood, asbestos, leather board, or American cloth, or with a porous material such as calico, hessian, or muslin. An outer covering of wire mesh, copper tangle, or steel tangle, which may be on a separate framework, may be added. Specifications 23621/10, [Class 64(iii)], 215,608, [Class 20(iv)], and 501,834, and U.S.A. Specification 2,106,943 are referred to.
Patent GB-1428198-A (GB)
Title: Method of retreading a tyre
IPC: B29D30/54
Filed: 1973-04-10
Abstract: 1428198 Retreading tyres W SCHELKMANN 10 April 1973 [11 April 1972 (2)] 17179/73 Heading B5A A method of retreading a tyre comprises locating an unvulcanized rubber layer between a tyre carcass 1 and a prevulcanized tread 2, covering at least the two annular side portions of the carcass by means which include two annular shells 3, and forming at least one sealed enclosure between the covering means and the carcass, evacuating each enclosure and vulcanizing the rubber layer by heating the assembly. In Fig. 5 each shell is sealed to the bead region, and its radially outer edge is sealingly engaged by a flexible sheet 11 having a nipple 12 for air evacuation. In a modification the shell extends partly over the sidewall and the sheet extends downwardly to sealingly engage the shell edge; alternatively, a flexible sheath may cover the tread and shells and be sealed to the inner periphery of each shell. Instead of a flexible sheet, a rigid ring 19, Fig. 10, is applied to the tread and sealed to each shell by a sealing ring 6; shell projections 20 provide separate vacuum zones between shell and carcass. In Fig. 9, the shells are used alone and are resilient and appropriately curved so that by pressing at a zone c they are held by suction; and additional seal 17 is provided. The shells may have projections on their faces adjacent the sidewalls in the form of letters or figures for impressing in the finished tyre. Various means for sealing the shells to the tyre bead regions are described.
Patent GB-109347-A (GB)
Title: An Improvement in Rugs and Covers used for Personal Protection and Comfort in Travelling.
Inventor: BLISS ERNEST COULSON
IPC: A47G9/06
Filed: 1917-05-18
Abstract: 109,347. Bliss, E. C. May 18, 1917. Rugs, travelling and like.-Rugs or covers for travellers are provided with two pockets so arranged relatively to the borders of the rugs that, their contents are readily accessible, and constructed and disposed relatively to each other as described below so that, when the rugs are evenly folded or rolled, the contents are well protected and not liable to mutual crushing. The two pockets A, B are situated near the upper border of the inside surface of the rug and contain inside pockets a, b<1>, b<2>, the pocket a being disposed in the upper half of the pocket A, and the pockets b<1>, b<2> in the lower half of the pocket B, so that when the rug is folded about the line Y-Y the bulge of the pocket a will not coincide with the bulges of the pockets b<1>, b<2>. After the rug is folded, it may be rolled and the contents of the pockets are then well protected. The pocket flaps are secured by stud fastenings.
Patent GB-545129-A (GB)
Title: Improvements in radio frequency bridges for impedance measuring purposes
IPC: G01R27/02
Filed: 1940-12-04
Abstract: 545,129. Sets of resistances; inductance and capacitance measurements. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., COLCHESTER, C. D., JELLYMAN, P. E., and NIGHTINGALE, R. A. Dec. 4, 1940, No. 17259. [Class 37] A radio-frequency bridge for measuring impedance comprises a number of resistances and condensers each in a close fitting metal tube, the tubes being arranged radially in rotatable drums mounted side by side. Each resistance drum comprises a disc di with an annular wall aw which may carry a scale and within which are mounted resistance units rux extending radially through holes in the wall aw and having contacts at their inner ends for engagement with a contact cos on a central bar ba surrounded by a tube at. The condensers cdd are similarly mounted, except that the condenser lc is connected across the jack ja or terminals teo, tei to which the work is to be connected. A further variable air condenser vac is provided comprising tubes it, ot, the tube ot being adjustable by means of a threaded member tm operated by the drum cdv. Resistances ra<1>, ra<2> constitute the ratio arms of the bridge. The circuits include input and output jacks jmi, jmo and a screened and balanced transformer tr.