baber/WOPTO huggingface dataset:
Patent GB-428257-A (GB)
Title: Silencer for internal combustion engines
IPC: F01N13/08
Filed: 1934-07-23
Abstract: 428,257. Exhaust-silencers. TYDEN, E. O. E., 36, Hantverkaregatan, Stockholm. July 23, 1934, No. 21534. Convention date, May 14. [Class 7 (ii)] Silencers comprising a body or bodies located in or forming part of the exhaust pipe, and provided with a plurality of passages in or approximately in the longitudinal direction of the pipe, are characterized by the combination of the following features : (1) the length of each passage in the direction of flow of the gases is at least about twenty times its diameter or largest cross-sectional dimension, (2) the sum of the smallest cross-sectional areas of the passages is equal or approximately equal to the cross-section of the exhaust pipe, and (3) all the passages are of practically equal length and between their ends are completely shut off from communication with other passages and with the outside air. In Fig. 2, the exhaust pipe is enlarged at 2 to accommodate a heat-resisting block 3 with the passages 4. In Fig. 5, the end of the pipe 11 is flattened for some distance and the walls corrugated to contact along lines 12 to form the separate passages 14.
Patent GB-933657-A (GB)
Title: Process for the preparation of aescin isomers
IPC: A61K36/00
Filed: 1961-06-14
Abstract: The invention comprises a - and b -aescin, m-pts 225-7 DEG C. and 222-3 DEG C. respectively, and a process for their preparation by converting natural horse chestnut aescin (prepared by the method of Specification 929,816) into the free acid form, preferably by means of an ion exchanger, maintaining a solution of the aescin in its free acid form at 50-90 DEG C. until precipitation of the b -aescin is complete, separating the dissolved a -aescin and precipitated b -aescin fractions.  The isomers are then isolated by drying in vacuo, if desired with use of drying agents, at temperatures below 100 DEG C.  Detailed examples illustrate the isolation procedure.  The isomers possess the same qualitative haemolytic effect as natural aescin, but the haemolytic indices are 1:20,000 and 1:40,000 for a - and b -aescin respectively.
Patent GB-297928-A (GB)
Title: Improvements in or relating to spring-attachment systems for car-wheels
IPC: B60G3/20
Filed: 1927-08-16
Abstract: 297,928. Parisi, F. Aug. 16, 1927. Springs, arrangement of. - In a spring suspension in which each wheel is independently connected to a vehicle frame by a transverse parallel linkage controlled by a transverse helical spring operated by an extension of one of the horizontal sides of the linkage, the linkage is prevented from fore and aft displacement by a connection 7 between the outer end of the other horizontal side and the vehicle frame. The linkage, in this case of steering wheels, comprises members 6, 8 pivoted at 3, 4 to a bracket 1 on the frame 2 and at their outer ends to sleeves 13, 14 mounted, together with a sleeve 10 on the stub axle, on the steering pivot. The member 7 rigid with the member 6 is pivoted at 5 to the frame at a point displaced from the pivot 3 but co-axial therewith. The member 8 carries an extension 11 which is pivoted at 12 to the movable, member of a spring device M adjustably mounted on the bracket 1 so as to vary the height of the vehicle frame from the ground. The device M, Fig: 2, is double acting and comprises a compression spring 19 mounted between the cylindrical casing 20 and a flange on member 24 which normally abuts against a pad 26 on the adjustable closed end 25 of casing 21. Disengagement of the casings 20, 21 is prevented by flanges 22, 23. The member 24 forms the cylinder of a dash-pot and is engaged by a perforated piston P, the rod 29 of which is connected to the extension 11. In the case of driving wheels, the members 6, 8 are connected at their outer ends to a boss carrying a stub axle, the wheels being driven by cardan shafts from a fixed differential gear.
Patent GB-646412-A (GB)
Title: Improvements relating to carburettors
IPC: F02M13/06
Filed: 1948-08-16
Abstract: 646,412. Spray carburetters. BRACHER, J. H. Aug. 16, 1948, No. 21562. [Class 7(iii)] Passages f, g, in a paraffin or heavy fuel carburetter a are fed from a float-chamber b at starting and idling through a jet c and passage d containing an air bleed valve j, which is opened by a cam i when the throttle valve h is opened a predetermined amount to destroy the suction on the jet c and stop the supply of light fuel.
Patent GB-984763-A (GB)
Title: Improvement in filter bag for filtering dust from dust-laden air
IPC: B01D46/02
Filed: 1961-06-15
Abstract: 984,763. Air filter bags. RANK-XEROX Ltd. June 15, 1961 [June 22, 1960], No. 21699/61. Heading BIT. [Also in Division B8] A generally flat-sided outward flow dustladen air filter bag 25, Fig. 2, is constructed of self-sustaining fibre-glass mat and has an open mouth 74 in one side wall reinforced by internal and external collars 72, Fig. 5, and 73 into which is fitted an inlet duct 17, Fig. 1 (not shown). The bag is formed from a blank 30 previously provided with collars 72, 73 and which is folded along lines 33-35 to form an open-ended tube which is stapled along fold and seam lines 36, 37. The ends of the tube are then closed by folding end panels 48, 49, 51, 52 and fold-back panels 55, 56, 59, 61, 64, 65, 68 and 69 into a gable-like end closure secured by staples along fold and seam lines 42,43.
Patent GB-1382976-A (GB)
Title: Wrench
IPC: B25B13/46
Filed: 1973-05-07
Abstract: 1382976 Ratchet spanners E LIND 7 May 1973 [9 May 1972] 21703/73 Heading B3N A wrench consists of a head 1 and a tubular shaft 2, a sleeve 6 threadedly attached to the shaft and a rod 3 that extends through shaft 2. The rod 3 is biased by spring 15 and has a circumferential groove 7 into which a block 5 fits. Sleeve 6 has a recess 4 to accommodate the block and a plate 8 is connected to the block by pins 9. Springs 12 bias the parts apart. A pin 21 prevents rotation of rod 3 relative to shaft 2 whilst projections 25 prevent the head from slipping off a nut. In operation sleeve 6 is screwed until head 1 and rod 3 grip a nut or bolt head. A ratchet effect is obtained on a return rotation of the wrench by depressing plate 8 so that the rod can be moved back against the pressure of spring 15. Fig. 7 shows an alternative head shape whilst Fig. 8 shows a head arrangement for gripping a socket screw. Edges 37, 38 are moved apart to grip a recess. Fig. 10 shows an alternative arrangement for moving block 5. A sleeve 39 is located on sleeve 6 and a pushbutton 8a is attached to the block by screws 9.
Patent GB-1456411-A (GB)
Title: Marking devices
IPC: E01C23/22
Filed: 1974-05-16
Abstract: 1456411 Line marking machines ROCOL Ltd 15 May 1975 [16 May 1974] 21777/74 Heading EIG [Also in Division Fl] A device for marking lines comprises an aerosol dispenser mounted on a carriage 1 with wheels 4 having shields 5 between which the outlet from the nozzle 8 discharges on actuation of a rod 10. The spray is protected by a wind shield 12.
Patent GB-1461599-A (GB)
Title: Method and apparatus for sorting pieces of particulate  material
IPC: B07C5/344
Filed: 1974-05-16
Abstract: 1461599 Sorting particulate material GUNSON'S SORTEX (MINERAL & AUTOMATION) Ltd 11 March 1975 [16 May 1974] 21814/74 Heading G1N Particulate material of the same or different chemical composition is sorted in accordance with whether its electrical resistance is above or below a predetermined limit. If the material is the same composition e.g. aggregate for use in road-making or concrete then there is a correlation between the hardness of the pieces and their electrical resistance i.e. the harder pieces contain less inherent moisture than the softer pieces and thus exhibit a high resistance. If the material is of different composition e.g. quartz and talc, or limestone and iron ore then the material is wetted with a conductive liquid at least one second before the resistance measurement. Thus aggregate from hopper 18 is sprayed with water from spray pipes 18a as it falls on to region 11 of rotary plate 12 where it is guided by baffles 15, 16, 17 so as to be carried one at a time past and in contact with a conductive brush 21 and complete a circuit between brush 21, and contact 23 which may be plate 12 if the latter is conductive. The resistance of each piece is measured at 25 and compared with a datum value in comparator 26. If the resistance is below the datum level ejector 27 is activated to deflect the aggregate so that it passes down reject shoot 33 whereas where the resistance is above the level it passes undeflected through shoot 32.
Patent GB-249742-A (GB)
Title: New or improved anti-dazzle means for use in motor headlamps and the like
IPC: F21V9/08
Filed: 1925-09-01
Abstract: 249,742. Williams, L. G. Sept. 1, 1925. Lantern screens. -A translucent or coloured light filter c of celluloid, mica, glass, &c., for filtering the light from the lower half of the reflector of a vehicle lamp is formed with a central part A extending higher than the source of light, and may be a permanent part of the lamp glass or attached thereto, e.g. by a suction cup F. The filter may be preferably coloured blue.
Patent GB-731132-A (GB)
Title: Improvements in or relating to plastic interpolymers
IPC: C08F236/16
Filed: 1953-08-07
Abstract: Plastic interpolymers are prepared by polymerizing from 20 to 50 mol per cent of a 1,3-butadiene such as butadiene, isoprene, dimethyl butadiene or a mixture thereof, 40 to 70 mol. per cent of 1,1-difluoro-2,2-dichloroethylene, 1,2-difluoro-1,2-dichloroethylene or a mixture thereof and 10 to 40 mol. per cent of an alkyl acrylate or a mixture thereof, wherein the alkyl group is methyl, ethyl, N-propyl, isopropyl, N-butyl, sec.-butyl, t-butyl, amyl, isoamyl, hexyl, heptyl, 2-ethylhexyl, octyl, isooctyl or chloroethyl.  The polymerization may be batchwise or continuous and may be carried out in bulk, solution or, preferably, suspension or emulsion.  Catalysts specified are hydrogen and benzoyl peroxides, potassium persulphate, t-butyl and cumene hydroperoxides, terpine hydroperoxides, alpha-alpha1 azodiisobutyronitrile or redox systems using polyamines, sugars or heavy metal complexes. Emulsifiers listed are fatty acid, rosin acid and amine soaps, and alkyl, aryl and aralkyl sulphonates or sulphates.  In suspension systems gelatin, casein, clay and polyvinyl alcohol may be used alone or in conjunction with a surface active agent and in solution polymerization aromatic solvents such as benzene may be used or, to precipitate the interpolymer as it forms, solvents such as butane and hexane.  Modifiers such as alkyl mercaptans, xanthogen disulphides and carbon tetrachloride are usually included and small amounts of plasticizers such as dioctyl phthalate or adipate and tricresyl phosphate may be added at the latex stage or during processing.  Polymerization may be stopped with hydroquinone or by coagulation with alcohol, acetone or salt and acid.  The products may be used for moulding, and as films, adhesives and coatings.
Patent GB-886218-A (GB)
Title: Improvements in or relating to the stabilization of polyolefins
Inventor: OBERDORFER PAUL ELLSWORTH
IPC: C08K5/1535
Filed: 1960-06-22
Abstract: A polyolefin is stabilized with a compound <FORM:0886218/IV (a)/1> wherein X and Y are -NR9R10, -OR9, -SR9 or -OC(O)R9 and each of R1 10 are hydrogen or C1 to C20 hydrocarbon radicals and at least one of R1-8 is a hydrogen atom attached to a tertiary carbon atom. Polyolefins specified are those derived from ethylene, propylene, butene, isobutylene, hexene and/or octene, and of the many stabilizers disclosed those preferred are sorbide, sorbide dibenzyl ether, di(dimethyl amino) sorbide, dianiline sorbide, diamino sorbide, sorbide dimethyl ether and sorbide diacetate.  Conventional inhibitors also may be present and several phenols, amines and organic sulphur compounds are specified.  The stabilized polyolefins have colour stability even at degradation temperatures, thereby enabling polyolefins of reduced molecular weight to be obtained. Applications specified are film, sheet, containers and tubular goods.
Patent GB-828815-A (GB)
Title: A bogie for a rail vehicle
Inventor: WINTEMBERG ADELBERT CHRISLER
IPC: B61F3/06
Filed: 1956-07-16
Abstract: 828,815. Railway trucks. GENERAL STEEL CASTINGS CORPORATION. July 16, 1956, No. 21959/56. Class 103(6) [Also in Group XXXI] In a rail vehicle bogie having three axles 2 driven by individual electric motors 14, 20, 22 the bogie frame has a centre bearing support C on the longitudinal centre line thereof and laterally spaced supports 15 spaced longitudinally from the centre bearing support for mounting a body (not shown) thereon, the frame comprising cooling air conduits for the motors, one conduit being supplied through the centre bearing support C and the other conduit being supplied through a top opening 16 in the frame. As further shown the one piece metal casting bogie frame is formed with longitudinals 6, transoms 8, 9 and end transverse members 7 and is spring supported on the axles 2. The support C communicates with a chamber 11 in the transom 8 whereby cooling air for the motor 14 is conducted from the body to the motor 14, the square-sectioned transom 8 having a side aperture 12 connecting the motor 14 to the chamber 11. The top opening 16 in the transom 9 communicates with a chamber 18 therein having lateral openings connecting with the motors 20, 22 whereby cooling air is conducted to the motors from a source in the vehicle body.
Patent GB-992503-A (GB)
Title: Improvements in or relating to resin blends
IPC: C08L51/00
Filed: 1962-06-06
Abstract: A synthetic resin composition, suitable for the production of moulded bodies, comprises (1) a polycarbonate of a di-(monohydroxyphenyl)-substituted aliphatic or cycloaliphatic hydrocarbon in which both hydroxyphenyl groups are attached to the same carbon atom of the hydrocarbon and (2) a graft copolymer of (a) a copolymer of a conjugated diolefine and a vinyl aromatic hydrocarbon and (b) a mixture of a lower alkyl ester of an alpha-lower alkyl acrylic acid and a vinyl aromatic hydrocarbon. From 5 to 80 parts of the polycarbonate may be present per 95 to 20 parts of graft copolymer.  The composition may also contain pigments, fillers and N,N-ethylene bis-strearamide (as a lubricant). The polycarbonate is preferably that of bisphenol A.  In the example, the graft copolymer was made by heating together a butadiene-styrene copolymer, methyl methacrylate, styrene, water, the sodium salt of hydrogenated disproportionated rosin, sodium hydroxide, sodium pyrophosphate, glucose, ferrous sulphate, sodium dodecyl benzene sulphonate and cumene hydroperoxide, and at the end of the polymerization adding a stabilizer comprising 2,6-di-tertiary butyl p-cresol and polyalkyl phenols.  The styrene in both the copolymer backbone and in the monomer mixture may be wholly or in part replaced by alpha-methyl styrene, vinyl toluenes or alpha-methyl vinyl toluenes.  Specification 772,627 is referred to.
Patent GB-1094124-A (GB)
Title: Coating device
Inventor: BROWN NORMAN HENRY
IPC: D06B11/00
Filed: 1964-05-28
Abstract: 1,094,124. Web coating apparatus. IMPERIAL CHEMICAL INDUSTRIES Ltd. May 13, 1965 [May 28, 1964], No. 22103/64. Heading D1L. A device for applying coating composition to sheet material, comprises a reservoir divided into two or more separate compartments 2, 3 into which different coating compositions may be placed, each compartment having a series of outlet holes 7 such that the different compositions may be applied simultaneously as stripes on sheet material when it is passed continuously under the coating device. The holes 7 are preferably in a line across the device and barriers are located between adjacent holes to prevent intermingling of the different compositions. Such barriers can be formed by a wire 15 laid in a helical groove on the surface of the reservoir. In another embodiment the reservoir is of triangular cross section the series of holes being at one of the apices thereof. In use sheet material to be coated is passed over a rubber roller which maintains the sheet material in contact with the outlet holes of the coating device as the sheet material is passed between the device and the roller, and coating composition is fed to the separate compartments by gravity or pump means. The coating device can be given a transverse reciprocal motion to produce a wave effect to the stripes on the sheet material.
Patent GB-900452-A (GB)
Title: Process for the extraction of thorium
Inventor: WELLS RONALD ALFRED
IPC: C01F15/00
Filed: 1957-11-01
Abstract: 900,452. Thorium extraction. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Oct. 24, 1958 [Nov. 1, 1957], No. 22105/60. Divided out of 899,284. Class 1(3) Thorium values are extracted from an acid aqueous solution thereof containing phosphoric acid, by contact with phosphorylated cellulose in hydrogen form. Such phosphorylated cellulose is obtained according to Specification 899,284 by treating cellulose with phosphoric acid and a basic nitrogen containing compound such as urea, followed by conversion to the hydrogen form by treatment with acid such as dilute hydrochloric, sulphuric or nitric acid and thereafter allowing it to stand in contact with water. Elution of the thorium values may be effected with aqueous -ammonium carbonate solution. According to an example, a sulphuric acid solution containing dissolved thorium and phosphate (such as is obtained in opening up monozite) is passed through phosphorylated cellulose in a column. Washing is effected successively with 2N sulphuric acid, water and aqueous ammonia and elution is then effected with 10% aqueous ammonium carbonate solution; the eluate is boiled and hydrated oxides thus precipitated taken up in nitric acid from which pure thoria is subsequently recovered by known means. Specification 803,264 also is referred to.
Patent GB-252112-A (GB)
Title: An improved material for moulding articles of all kinds, more particularly parts of lving bodies
IPC: C08L5/12
Filed: 1925-09-04
Abstract: 252,112. Poller, A. May 14, 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Fibrous plastic compositions.- A composition applicable for moulding parts of living bodies comprises a mucilage obtained from sea-wracks, mosses, or algaceous plants in general, to which is added a proportion of short animal, vegetable, or mineral fibres. To this may be added iron oxide or other " colloidal metallic oxides " to improve the adherence of the mucilage to the fibres. The strength and resilience may be increased by the addition of long fibres, and by injection into the melted mass, while stirring, a solution of indiarubber, whereby a filamentary network of rubber is produced which permeates the whole. Suitable proportions are : agar agar 1,000 gm., water 20,000 gm., short fibrous cellulose 200 gm., iron oxide 500 gm., long fibres 10 gm., rubber 250 gm. The mixture is heated until it is viscous and applied to the surface of a body of which a cast is to be made, with a brush or spatula. Cosmetics and medicinal preparations may be added.
Patent GB-531731-A (GB)
Title: Improvements in or relating to fire extinguishing apparatus
IPC: A62C13/00
Filed: 1939-07-31
Abstract: 531,731. Fire-extinguishing. FIRE-GARD CORPORATION. July 31, 1939, No. 22181. Convention date, Aug. 29, 1938. [Class 47 (ii)] Fire extinguisher apparatus comprises a container 10 for carbon-tetrachloride having a perforated top 11 for discharging the fluid. The perforations are closed by a metal member 13 the peripheral edge of which is sealed by fusible alloy 14. The member 13 is provided with a pin 16. In the example shown, this pin is supported on a V-shaped bracket 17. A pull on the can 10 disrupts the seal 14 and the apparatus can then be used to spray liquid on the fire. Alternatively, automatic disruption of the seal 14 is accomplished by heat and the can drops to the floor. It is possible to use the apparatus without supporting means. In this case the pin 16 is knocked on any ledge or projection available.
Patent GB-320970-A (GB)
Title: Improved means for use in automatically pumping up pneumatic tyres
IPC: B60C23/12
Filed: 1928-08-01
Abstract: 320,970. Campbell, D. C. Aug. 1, 1928. Actuating pump by motion of vehicle wheel.- In an automatic inflation apparatus for pneumatic tyres, the pump cylinders G are rigidly attached radially to the wheel. The pistons M are connected by a rod to weights P sliding on guiderods Q. The pump cylinders are connected to the tyre valve, which may have a relief valve fitted, by means of capillary tubes. At a critical speed of the wheels, the centrifugal force on the pistons and weights causes the weights to snap past spring detents S, and the pumps deliver compressed air to the tyre valve. When the speed decreases the spring b return the weights and pistons to their original positions.
Patent GB-168876-A (GB)
Title: Improvements in systems for wireless transmission of writing, pictures and the like
IPC: H04N5/067
Filed: 1921-08-22
Abstract: 168,876. Petersen, M. H. Sept. 9, 1920, [Convention date]. Synchronous movements.-In a copying telegraph using wireless transmission, the picture &c. to be copied is chemically produced in insulating lines on a drum or plate 7 of conducting material, and is reproduced on a similarly-driven plate or drum at the receiving station, the motors driving the two drums being maintained in synchronism by an application of the " beat " effect. The drum 7 co-operates with a contact so that the coil 10 in the grid circuit of an oscillation generator 4 is short-circuited except when the contact is passing over an insulating line, in which circumstances the generator 4 supplies high-frequency oscillations through transformer 6 to the antenna 1. At the receiving station the high-frequency waves are caused to heterodyne with locally produced oscillations to give a lowfrequency " beat," which after amplification by a low-frequency amplifier produces low-frequency current in the coil of a recording oscillograph. Two generators 21, 23 giving oscillations which differ little from one another in frequency, but differ considerably from those given by generator 4, supply energy through transformers 28, 29 to antenna 1, and produce low-frequency beats in coil 30 which by means of amplifier 33 and transformer 34 supply low-frequency current to motor 35 driving the drum 7. These two sets of waves also produce similar low-frequency beats at the receiving station, where the beat-frequency current, after amplification, is supplied to the motor which drives the receiver drum. An alternative arrangement is described whereby oscillations of different frequencies are produced by a single vacuum tube replacing the generators 4, 21, 23. The oscillograph and motor control circuits at the receiving station are tuned to the picture-transmitting and motor-control wave-frequencies respectively.