baber/WOPTO huggingface dataset:
Patent GB-1147302-A (GB)
Title: Bearing for a rotary shaft
IPC: A61K31/08
Filed: 1967-01-27
Abstract: 1,147,302. Bearings. DAINI SEIKOSHA K.K. 27 Jan., 1967 [2 Feb., 1966], No. 4296/67. Heading F2A. [Also in Division G3] A bearing comprises a first portion 1 engaging an end of a shaft, a second portion 3 journalling the shaft, the portions being spaced to form a lubricant retaining zone and having at least one aperture 4 containing lubricant and opening into the zone. In Fig. 1, a space 6 between the portions and between the shaft and portion 3 contains lubricant and four axial apertures 4 of circular cross-section are equally spaced around the axis of the shaft. d<SP>1</SP> = D/2. In Fig. 3 (not shown), capillary tubes 7 extend from the ends of apertures 4 remote from space 6.
Patent GB-138921-A (GB)
Title: Improvements in method of manufacturing fibrous cement products
IPC: B28B17/02
Filed: 1920-02-12
Abstract: 138,921. Mattison, R. V. Feb. 12, 1920. Batch-mixers with circulating-devices and rotary stirrers; pug-mills.-In a continuous process for the manufacture of fibro-cement products, e.g.- roofing-tiles, asbestos waste is ground in a crush. ing-mill and is mixed with dry cement, the dry mixture being conveyed by a bucket elevator 19, Fig. 2, to a hopper 20 furnished with a valve 21 from which the mixture passes, via a weighing bucket 23, to a wet mixer 30, where it is mixed with water supplied by a measuring-device 33. The wet mixture is delivered through a valved gate 47 to a chamber or reservoir 46 furnished with agitators 48 and passes to an extrusion machine 51, whence it is forced through a die 56 in the form of a sheet and is severed by a cutting-device 57. Reference has been directed by the Comptroller to Specification 18404/13, [Class 87 (i), Bricks &c.].
Patent GB-333243-A (GB)
Title: Improvements in the dyeing of regenerated cellulose materials
IPC: C09B31/08
Filed: 1929-02-08
Abstract: 333,243. Imperial Chemical Industries, Ltd., and Brightman, R. Feb. 8, 1929. Azo dyes.-Regenerated cellulose materials are dyed in level violet to blue to bluish green shades by the application of secondary disazo dyes of the type having as first component a naphthylaminesulphonic acid or an aminonaphtholsulphonic acid other than 2 : 5 :-7-acid, as middle component a mono-amine of the benzene series coupling in pposition to the amino group, and as end component a 1 : 8-aminonaphtholmono- or di-sulphonic acid. In an example viscose silk is dyed greenish blue by means of the dyestuff 2 : 8-aminonaphthol- 3 : 6-disulphonic acid # 2 : 5-dimethoxyaniline # 1: 8-aminonaphthol-4-sulphonic acid in a bath containing Glauber's salt, soap, and soda ash with or without other salts or dyeing assistants such as borax. A table is also given showing the shades obtained on viscose silk by use of the following dyestuffs :-2 : 8 - aminonaphthol - 6 - sulphonic acid, 1-naphthylamine-4-sulphonic acid, or 1: 5-aminonaphthol-7-sulphonic acid, # cresidine # (alkaline) 1 : 8-aminonaphthol-2: 4-disulphonic acid; 2 : 8-aminonaphthol-3 : 6-disulphonic acid or 1 : 8-aminonaphthol-4-sulphonic acid # cresidine # (alkaline) 1:8- aminonaphthol-4-sulphonic acid; 2-naphthylamine-4-sulphonic acid # cresidine # (alkaline) 1 : 8- aminonaphthol-3 : 6-disulphonic acid; 2-naphthylamine - 6 - sulphonic acid # m - toluidine # (alkaline) 1 : 8-aminonaphthol-4-sulphonic acid; 1- naphthylamine 4 - sulphonic acid # aniline # (alkaline) 1 : 8-aminonaphthol-2 : 4-disulphonic acid; 2-naphthylamine-6-sulphonic acid # o-anisidine # (alkaline) 1 : 8-aminonaphthol-3: 6-disulphonic acid. Specifications 276,450, 276,757, 281,767, 283,319, 287,010, 287,609, and 301,754 are referred to.
Patent GB-445386-A (GB)
Title: Improvements in electric resistance bodies of semi-conducting materials
IPC: H03B5/10
Filed: 1935-02-11
Abstract: 445,386. Resistances. PATENT-TREUHAND-GES. FUR ELEKTRISCHE GLUHLAMPEN, 11, Ehrenbergstrasse, Berlin. Feb. 11, 1935, Nos. 4391 and 4392. Convention dates, Feb. 12, 1934 and Feb. 19, 1934. [Class 37] Electric resistance elements with a negative temperature coefficient and in which the voltage drop within limits shows a falling characteristic with increasing load are made from metallic oxides, sulphides, selenides or tellurides having a specific resistance greater than 1 ohm, and preferably between 10<3> and 10<6> ohms, by controlling the temperature of the resistance elements in such a manner as to produce a temperature drop in the direction of the current flow. Oxides, such as uranium dioxide and unsaturated oxides of nickel and cobalt, are particularly suitable for making the resistances. The resistance may be in the form of a rod 1, which is provided with massive current leads 2, 3, with or without cooling plates 4, 5, Fig. 5, to produce the temperature drop. The radiation of heat from the central portion of the rod 1 may be reduced by surrounding this portion with a shield 8, Fig. 8, which may be perforated as shown, or by providing a heat insulating layer around the central portion. The heat withdrawing leads may be provided at one end only of the rod 1, as shown in Fig. 9, the current supply at the other end being effected through a thin coiled spring 9. In modifications the resistance elements consist of discs traversed radially by the current. In one form, Fig. 12, the current is conducted to the centre of the disc 11 through a coiled spring 14, and is conducted from the periphery through a cooling plate 15. The effect may be further increased by providing the central portion of the disc with an insulating or slightly heat radiating covering. In other arrangements the temperature drop is produced by varying the cross-section of the resistance. Thus the resistance may be built up of separate discs of differing diameter, as shown in Fig. 14, or the cross-section may increase from the middle towards both ends, or from one end to the other. The resistance elements may also be arranged in vessels filled with gases, such as hydrogen or argon. The resistances may be used for maintaining constant voltage in the anode circuits of amplifiers. Specification 409,174 is referred to. Reference has been directed by the Comptroller to Specification 1998 /09 (as open to inspection under Sect. 91 of the Acts), [Class 37].
Patent GB-666716-A (GB)
Title: Preparation of acrylonitrile/vinylpyridine copolymers
IPC: C08F20/42
Filed: 1949-02-18
Abstract: Acrylonitrile and 2 to 8 per cent of a vinyl pyridine are copolymerized in aqueous media at a pH of less than 6 in the presence of a catalyst such as alpha, alpha azodiisobutyronitrile, peroxides, or sodium, potassium, lithium, barium, magnesium, calcium or ammonium persulphates which may be activated by an oxidizable sulphoxy compound such as sodium bisulphite, metabisulphite, hydrosulphite, or thiosulphate, sulphur dioxide, diethyl sulphite, formamidine sulphinic acid, or p-toluene sulphinic acid.  Vinyl pyridines specified are the alpha, beta, and gamma vinyl pyridines and their methyl and ethyl ring substitution derivatives such as 5-ethyl-2-vinyl pyridine and 2-methyl-5-vinyl pyridine; mixtures of two or more of these vinyl pyridines may be copolymerized with acrylonitrile.  The process may be carried out in a batchwise or continuous process, and the aqueous medium may contain the sodium sulphate of a hydrocarbon of from 15 to 18 carbon atoms as an emulsifying agent.  The copolymers thus produced are of a uniform molecular weight between 10,000 and 100,000, and may be dissolved in dimethyl formamide and dry spun to provide filaments which may be oriented by stretching and dyed with acid and direct dyestuffs.ALSO:Fibre forming copolymers susceptible to dyeing with acid or direct dyestuffs are made by copolymerizing a mixture of acrylonitrile and 2 to 8 per cent of a vinyl pyridine.
Patent GB-1190321-A (GB)
Title: Method of Producing Malleable Iron
IPC: C21D5/14
Filed: 1968-01-29
Abstract: 1,190,321. Heat-treating cast iron. BRITISH FURNACES Ltd. Jan.29, 1968 [Feb. 6, 1967], No.4516/68. Heading C7A. Ferritic malleable iron is produced from white cast iron containing 2-3% C. and 0À8-1À7% Si by isothermally annealing the cast iron, first at 1700-1750 F. for sufficiently long to complete first stage graphitization, then at 1275-1325 F. for sufficiently long to partially complete second stage graphitization, and finally at 1225-1275 F. for sufficiently long to complete second stage graphitization. Prior processes involve cooling from the first anneal, first rapidly to 1400 F., then slowly to 1200 F. An example of cast iron castings is specified containing 2À5% C., 1À45% Si, 0À36% Mn, 0À16% S., 0À002% B., 0À02% Cr and 0À005% Bi.
Patent GB-432172-A (GB)
Title: Improvements in and relating to instruments for measuring the arc-drop in vapour electric arc apparatus
IPC: G01R31/24
Filed: 1935-02-12
Abstract: 432,172. Pressure meters. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. Feb. 12, 1935, No. 4543. Convention date, Feb. 13, 1934, [Class 37] The mean arc voltage in arc discharge devices containing metal vapour is measured by connecting anodes A1 A2 of the device to rectifiers G1 ... G3, the midpoint of resistance R being connected to the cathode, and a voltmeter V being connected across the resistance R. The connections of anodes Al A2 may be reversed and the mean of the two readings taken. If the arc apparatus is grid-controlled the rectifiers G1 ... G3 must be controlled in the same way.
Patent GB-884389-A (GB)
Title: Improvements in lens arrangement for a binocular telescope
IPC: G02B7/02
Filed: 1960-02-10
Abstract: 884,389. Lens mounting for binoculars. D & D. CO. Inc. Feb. 10, 1960 [Feb. 25, 1959], No. 4677/60. Class 97(1). A lens mounting arrangement for a binocular telescope comprises two compact rectangular lens casings e.g. mounted on a connecting bridge; at least two rectangular shaped lenses 20, 21 and 22 are mounted on a sleeve 25 the lenses being of different width in a direction perpendicular to their optical axis and each comprising two straight edges joined by two arcuate edges. The sleeve 25 has a shoulder 32 between the portions holding the two lenses which are held in place by a flange 35 and lugs 41 and which are separated by arcuate spacers 37 (Fig. 3) or by beads of cement 46 and the flange 32 (Fig. 5).
Patent GB-402419-A (GB)
Title: Process for ionisation and electronisation of mixtures of gases and other materials, such as vapours, liquids, colloids, solids
Filed: 1932-02-17
Abstract: In carrying out non-explosive chemical reactions, including the physico-chemical operation of dyeing, between liquids and/or solids and liquids and/or solids and gases, a gaseous suspension of the said solids and/or liquids physically stabilized by ionization of the gaseous medium is prepared and utilised then subsequently to effect the required reaction.  The gaseous medium, either the whole or a portion thereof, may be ionized separately from or together with the materials capable of reacting together or with the gaseous medium. Known ionizing agents may be initially employed such as the high tension electric spark, high frequency electric spark, high tension electric discharge, luminous radiations including ultraviolet and infra-red radiations, cathode rays and X-rays.  Certain chemical reactions, particularly combustions, may be used to effect ionization of a suitable gaseous medium.  Radioactive substances, and certain common metals which emit ions may also be used.  A high frequency electric discharge is used to maintain the ionized condition. According to an example, dyeing materials may be stably suspended, as such or in solution, in a previously ionized gaseous medium and may be precipitated on the body to be dyed by electrostatic means.  The colouring effect may be localised by the interposition of suitably shaped dielectric screens.  The Specification as open to inspection under Sect. 91 comprises also the production of a combustion mixture for internal combustion engines by treating air with electric sparks and/or an electric discharge to cause ionization of the air which is then mixed with a fuel.  The electric sparks or discharge may also act on a mixture of air and fuel in a manner such that the fuel is prepared for subsequent combustion in the engine.  This subject-matter does not appear in the Specification as accepted. Reference has been directed by the Comptroller to Specification 16432/07, [Class 1, Acids, alkalies &c.]ALSO:Dyeing materials may be stably suspended, as such or in solution, in a previously ionized gaseous medium and may be precipitated on the body to be dyed by electrostatic means.  The colouring effect may be localised by the interposition of suitably shaped dielectric screens.  Reference has been directed by the Comptroller to Specification 16432/07, [Class 1, Acids, alkalies, &c.].
Patent GB-885307-A (GB)
Title: Improvements in or relating to apparatus for righting derailed or overturned vehicles
Inventor: WULLNER HEINRICH
IPC: B61K5/00
Filed: 1960-02-10
Abstract: 885,307. Lifting vehicles. MASCHINENFABRIK DEUTSCHLAND A.G. Feb. 10, 1960, No. 4726/60. Class 79(3). A device for attachment to an overturned railway vehicle to facilitate the application of lifting jacks comprises a mounting 12 to which a strut 11 may be pin jointed at 14 and to which a member 10 may be attached by screws 13. The other ends of the members 10 and 11 may be retained in supports 2 and 3 by wedges 6 or bolts 7. The supports 2 and 3 may be screwed on to the vehicle at the position occupied by the buffers. Bolts 17 are provided on the mounting 12 for the application of the jacks. The members 10 and 11 may be tubular, the member 10 having- flanges 15.
Patent GB-1247234-A (GB)
Title: Yarn piecing apparatus
IPC: D01H4/50
Filed: 1969-01-28
Abstract: 1,247,234. Piecing-up in break spinning apparatus. TORAY INDUSTRIES Inc. 28 Jan., 1969 [2 Feb., 1968; 26 Feb., 1968; 1 March, 1968; 13 March, 1968; 29 March, 1968], No. 4762/69. Heading D1D. In break-spinning apparatus a break occuring in the yarn is detected and the end is returned into the rotor 8 pneumatically and/or mechanically. Compressed air from source 4 is supplied through magnet valve 5 to device 3 for conveying individual fibres 2 in an air stream to rotor 8 as long as device 12 detects a predetermined tension in the yarn; but the air is supplied to box 11 and thence into delivery tube 7 when the tension falls below the required level. Simultaneously the rotation of the rotor is halted and the take up rollers 10a, 10b and the winding roller 20 are reversely rotated for a predetermined amount so that the broken end is pneumatically and mechanically introduced into the rotor. An air suction tube may be disposed from above coaxially into the rotor for preventing contact of the yarn with the rotor wall. Two pairs of rollers 10a, 10b and 26a, 26b may be disposed below the box 11, rotating in different directions, together with a guide lever 28 for leading the yarn to one or other of the roller pairs in accordance with a signal from the device 12. Instead of two pairs of rollers, a pair of auxiliary rollers contacting diametrically opposed positions of a rotating roller may be provided. Also the length of the yarn path between the rollers and the take up roll 19 may be changed by a pivoted lever 33 actuated by a signal from device 12. The yarn may be introduced back into the rotor solely by mechanical means such as a pair of nip rollers or aprons provided immediately adjacent the downstream terminal of the delivery pipe of the rotor. During piecing-up the fibres are sucked up tube 14 into a container 15.
Patent GB-485033-A (GB)
Title: Improvements in the manufacture of ethylene oxide
Filed: 1937-02-17
Abstract: In the process of the parent Specification for recovering ethyelne oxide by adsorption in active carbon, and its drying to a definite degree by means of hot air or inert gas after each flushing to remove adsorbed ethylene oxide, the carbon when exhausted is treated with hot or boiling water or a suitable watermiscible solvent, such as ethyl, isopropyl or propyl alcohols, or a mixture of such solvent and water for a substantial period of time, e.g. 30 minutes or more in order to reactivate it, whereupon it is dried for further use. According to an example, such exhausted carbon was revivified by treatment for 24 hours immersed in water at 90 DEG  C.ALSO:In the process described in the parent Specification for recovering ethylene oxide by adsorption in active carbon, and its drying to a definite degree by means of hot air or inert gas after each flushing to remove adsorbed ethylene oxide, the carbon when exhausted is treated with hot or boiling water or a water-miscible solvent, e.g. ethyl, propyl or isopropyl alcohols, or a mixture of such solvent and water for a substantial period of time, e.g. 30 minutes or more in order to reactivate it, whereupon it is dried for further use.  According to an example, such exhausted carbon was revivified by treatment for 24 hours immersed in water at 90 DEG  C.
Patent GB-473176-A (GB)
Title: Improvements in and relating to air-cooling arrangements for dynamo-electric machines
IPC: H02K9/10
Filed: 1937-02-17
Abstract: 473,176. Cooling dynamo electric machines. SIEMENS-SCHUCKERTWERKE AKT.-GES. Feb. 17, 1937, No. 4810. Convention date, Feb. 29, 1936. [Class 35] The cooling air-currents of a dynamo-electric machine are produced by fans 9 shut off from the space occupied by the windings and located between the bearings and the rotor, which fans draw the heated air from portions 15 of the stator periphery and deliver it, after cooling, partly to the winding heads 3 and partly to the remaining portions 13 of the stator periphery. In the preferred arrangement shown, the fans have spiral casings whereby the heated air loses velocity and gains pressure. The heated air is conducted by guiding ribs 23 between the two walls of a double bottom 21 towards coolers 18 situated below and on both sides of the machine. The cooled air flows below the double bottom and through a vertical conduit 22 back to the machine.
Patent GB-835837-A (GB)
Title: Improvements in polymerisation
IPC: C08F110/06
Filed: 1958-02-14
Abstract: Polypropylene is made by heating at a temperature of from 100-170 DEG C., a mixture of propylene and a catalyst composed of titanium trichloride and tri-isobutyl aluminium.  The reaction may be conducted in bulk or in an inert hydrocarbon solvent such as a saturated aliphatic or cycloaliphatic or aromatic hydrocarbon, and under a pressure which is maintained constant during the course of the reaction.  The reaction may be terminated by destroying the catalyst, for example by the addition to the mixture of a mono- or polyhydric alcohol, or water containing up to 10% of hydrochloric acid.  The product which consists of amorphous and crystalline polypropylene can be separated by extraction with suitable inert, non-polar solvent medium.  The polypropylene may be used for the production of moulded articles, films, coatings, fibres, as a condenser tape, and as an insulator for wiring, gears, and gear-boxes.
Patent GB-510668-A (GB)
Title: Improvements in and relating to injection moulding and die casting machines for the manufacture of screw-threaded articles
IPC: B21C37/09
Filed: 1939-02-14
Abstract: 510,668. Moulding screw-threaded articles by injection. EVERY, C. E. (Eckert & Ziegler Ges.). Feb. 14, 1939, No. 4878. [Class 87 (ii)] In injection-moulding machines for the manufacture of screw-threaded articles, such as caps for collapsable tubes, comprising a fixed mould half A, a movable mould half B and cores 16 for forming the screw threads, the cores are rotated and axially displaced by a threaded spindle 24 which moves with the mould half B and is provided with a screw thread 28 which engages a stationary nut 29. The fixed mould half A comprises plates 1, 2 carrying diemembers 3 and an inlet 6 whereto an injection nozzle is applied. The mould half B comprises plates 8-13 bolted together. The plate 13 carries die-members 15 wherein the cores 16 are mounted. Each core has a portion 17 for forming the screw threads and a threaded part 18 engaging a nut 19 fixed in the plate 11 such that when the core is rotated, it is also displaced longitudinally. The spindle 24 rotates the cores by gearing 25, 23, 22, 20, on movement of the mould half B and relative movement of the thread 28 and nut 29. Ejector pins 37 work in bores in the cores and are operated by plates 33 moved in a cavity 32 in the plate 11 by engagement of a rod 34 with a fixed stop 36. The rod 34 may have an adjustable end 35.
Patent GB-101383-A (GB)
Title: Internal Combustion Engines.
Inventor: WEGER CHARLES JOHN
IPC: F02B25/00
Filed: 1916-04-04
Abstract: 101,383. Weger, C. J. April 4, 1916. Two - stroke - cycle engines.-The power cylinder A is in communication with a wider co-axial cylinder C which is connected to the carburettor, and the crank-shafts A<4>, C<6> rotated by the pistons of these cylinders are provided w i t h additional cranks a<8>, a<9> and c<7>, c<8> respectively, connected by rods A<3>, A' and set so as to allow the pistons to move in opposite directions throughout a part of their strokes. A poppet valve c<1> which opens inwardly with respect to the cylinder A controls the opening in the partition separating the cylinders, and a similar valve (not shown) opening inwardly with respect to the cylinder C controls the communication with the carburettor. Ignition takes place immediately after the piston A<1> has reached the upper limit of its stroke, and at this time the piston C' is still moving upwards and explosive mixture is entering the cylinder C. During the down-stroke of the piston A<1>, the exhaust port a is uncovered, and since the piston C' commences its down-stroke before the piston A<1> reaches its lowest position, the explosive mixture will be forced through the valve c<1> while the exhaust is open, so scavenging the cylinder A. When the piston A<1> moves upwards, the port a is closed, but the piston C<1> continues to force mixture into the cylinder A, the compression being aided by the upward movement of the piston A<1>. The valve c<1> closes as soon as the piston C<1> moves upward.
Patent GB-436856-A (GB)
Title: Improvements in and relating to radio receivers
IPC: H03G3/26
Filed: 1934-02-15
Abstract: 436,856. Valve circuits for wireless reception. FERRANTI, Ltd., and TAYLOR, M. K., Hollinwood, Lancashire. Feb. 15, 1934, No. 5027. [Class 40 (v)] Relates to receivers embodying automatic volume control and including means for inter-channel noise suppression and comprises the provision of a common ohmic resistance in the anode-cathode circuit of a noise suppressor valve and a low frequency amplifier valve and also included in the grid biassing circuit of the latter. In one embodiment, the diode portion of a valve V1, Fig. 1, is fed with signals from a circuit LC, the demodulated component of its output, developed across the load resistance b, being applied through a condenser d to the grid e of the triode portion for low frequency amplification. Bias for the grid e is due to the cathode resistance f which carries also the anode current of a compensating valve V2, the grid of which is connected to a tapping h on the resistance b. When no signal is being received the valve V2 passes a large current through resistance f to block the grid of valve V1. When a signal is being rectified by the diode the grid of valve V2 is rendered negative its anode current drops and the grid bias of valve V1 attains a value permitting normal amplification. In a modification the grid bias of the valve V1 may be in part due to a potential divider connected across the plate supply. In another embodiment the valve V2 is arranged to oscillate and so pass a large anode current during the no-signal periods. The variable grid bias for the compensating valve may be derived by the rectification of a specially produced intermediate frequency. Thus the valve V2, Fig. 4, is biassed by the potential due to the load resistance w of a rectifier R fed from an I.F. circuit L3, C3, associated with the anode circuit of a heptode frequency changer V3, fed with signals from the circuit LC through a condenser q. Alternatively the valve V2 may itself act as the rectifier of the I.F. signal. Specification 405,124<*> is referred to.