baber/WOPTO huggingface dataset:
Patent GB-307134-A (GB)
Abstract: 307,134. White, A. E., (Coodrich Co., B. F.). Dec. 20, 1927. Isomerizing rubber.-Rubber is converted into a heat-plastic material by heating it in the presence of a solvent with a phenol and an acid isomerizing agent such as a strong non-oxidizing mineral acid, or a sulphonic acid or sulphonyl chloride. In an example, to 200 parts of a 5 per cent solution of rubber in benzene, are added 40 parts by weight of phenol and 15 parts of hydrochloric acid. The mixture is heated to 100‹ C. for 40 hours under reflux, the phenol and solvent are removed by distillation in steam, and the residual acid is removed by washing in a hot mill. The resulting product is soluble in the usual rubber solvents to form a base for paints &c., practically insoluble in alcohol, ether, acetone, acetic acid, aniline, water, acids, and alkalies, and may be vulcanized in the usual manner. Balata, guttapercha, synthetic rubbers, and vulcanized or reclaimed rubber containing a low percentage of fillers and pigments, may be converted by the same process. Other solvents such as carbon tetrachloride, gasoline, tetrachlorethane, may be employed, and instead of phenol, cresol, carvacrol, alpha or #, naphthol, catechol, p chlorophenol, may be used. For coating metals &c., the solvent need not be removed, the acid being preferably neutralized, e.g. by ammonia. Specification 249,172 is referred to.
Patent GB-1302948-A (GB)
IPC: F16L27/04
Filed: 1970-06-24
Abstract: 1302948 Pipe joints G W WALTON 24 June 1970 [26 Sept 1969 2 Jan 1970] 30765/70 Heading F2G A ball and socket joint for pipe-lines comprises a ball and socket 10, 14, a ball retaining member 15, and a seal carried by a cylindrical surface 12 of the ball against an annular shoulder 26, the seal including a sealing ring 28 of rubber &c., a retaining ring 25, and a follower ring 29 of steel, &c. As a modification, the follower ring 29 may be a flange (35), Fig. 4 (not shown), on a tube providing the cylindrical surface 12, screwed into the end of the ball member 10. The retaining ring 29 has a convex surface which co-operates with a concave surface in the sealing ring 28. The retaining ring 25 and the rubber sealing ring 28 are connected by a tongue and groove, &c., and the seal can turn as a whole on the cylindrical surface 12. In the embodiment shown, the retaining member 15 is screwed into the socket 14 and has a grease nipple 20 for lubricating the surface of the ball and a grease retaining ring 22 located in a groove 23. In Fig. 5 (not shown, the ball retaining member (40) is connected to the socket (41) by bolts (42) and nuts (43). In Fig. 6 (not shown), the ball (52) is supported by ball bearings (55) within the socket mouth. In the embodiment of Fig. 7, the ball has diametrically opposed openings 83, 84 formed in slots 86, 87 respectively on its surface and the slots are positioned perpendicular relative to each other. Trunnions 78, 80 in the socket 72, when screwed fully inwards, engage the openings 83, 84 and in this position the ball moves relative to the socket 72 about the longitudinal axes of the trunnions. Withdrawing the trunnion 80 completely and the trunnion 78 so that it engages the slot 86 only, the movement of the ball member is governed by the direction of the slot 86, i.e. moves about an axis in a direction perpendicular to the slot at opening 83. Withdrawing the trunnion 78 completely and screwing in the trunnion 80 so that it engages the slot 87, the ball in this position moves about its own longitudinal axis.
Patent GB-739277-A (GB)
Title: Improvements in or relating to process and apparatus for the production of hydrogen cyanide
IPC: B01J12/00
Filed: 1952-12-05
Abstract: <PICT:0739277/III/1> <PICT:0739277/III/2> <PICT:0739277/III/3> <PICT:0739277/III/4> A catalyst unit adapted to be clamped by means of flanges 7 between the two sections 1 and 2 of a catalytic apparatus for the production of hydrogen cyanide from a gaseous mixture comprising ammonia, a gaseous hydrocarbon and oxygen (Fig. 1) comprises a foraminous platinum metal catalyst 25 located between a pair of mating catalyst holder plates 20, 21 and having a support associated with the lower of said plates, which may take the form of a plurality of parallel rods 28 (Figs. 2 and 3) or a woven network 31 (Fig. 4), and which is constructed of a metal structurally stable at about 1250 DEG  C. and having a surface covering of a high temperature refractory.  The holder plates may be constructed of an austenitic stainless steel.  The metal of the support may be an alloy of iron, chromium, nickel or copper, e.g. an austenitic stainless steel, nichrome, Monel or Inconel (Monel and Inconel are Registered Trade Marks).  The covering may be of silica, a high silica glass, chromia or alumina, and may be in the form of a sleeve or a sintered coating.  Specifications 723,081, 723,293, 723,508 and 723,757 are referred to.
Patent GB-200050-A (GB)
Title: Improved method of manufacture of electric glow lamp bulbs
IPC: C03B23/07
Filed: 1922-11-13
Abstract: 200,050. Monnier, A. M. June 29, 1922, [Convention date]. Forming electric-lamp bulbs.-In the manufacture of electric lamp bulbs without an apparent sealing-pip, a number of bulbs a<1>, a<2> are blown simultaneously in a mould, the blank terminating in cylindrical portions c, d. An exhaustion tube f is fixed on to the part c, which is then divided at the neck b<1> from the blank, and formed into a bulb with the usual sealing-pip, as shown in Fig. 5. A glass neck j carrying a filament is inserted in the bulb a<1> and an exhaustion tube k, fused on, as shown in Fig. 7. The bulb a' is then parted from the blank at b' and exhausted and sealed. The bulb a<2> is then treated in a similar manner. By moulding several blanks at once much thinner walls can be obtained than by blowing the bulbs singly.
Patent GB-1189226-A (GB)
Title: Process for the Separation of Mixtures of Liquid and Solid Fats, especially Liquid and Solid Fatty Acids
Inventor: HARTMANN HELMUT
IPC: C11B7/00
Filed: 1967-07-06
Abstract: 1,189,226. Separation of fatty acids. HENKEL & CIE G.m.b.H. 6 July, 1967, No. 31164/67. Heading C2C. Mixtures of fatty acids, or esters and alcohols, are separated in a crystallization process which is carried out in two stages. In the first stage, the mixture is cooled, preferably in the absence of water, so that only a part of the solid crytallizes; in the second stage a further reduction in temperature of the slurry formed in the first stage is caused by dispersing this slurry in aqueous wetting agent solution which is cooler than the slurry. Examples describe the separation of mixtures of distilled tallow fatty acids and of cotton seed oil fatty acids. The cooled wetting agent comprises magnesium sulphate and sodium decyl sulphate.
Patent GB-748876-A (GB)
Title: Improvements in or relating to electric circuit arrangements for starting and operating from an alternating current supply two low pressure electric discharge lamps eachhaving two heatable cathodes
IPC: H05B41/04
Filed: 1952-12-09
Abstract: 748,876. Supply systems for space discharge apparatus. GENERAL ELECTRIC CO., Ltd., and CATES, J. Dec. 9, 1953 [Dec. 9, 1952], No. 31213/52. Class 38 (4). Two series-connected low-pressure .electric discharge lamps 1, 2 each having two heatable cathodes 3, 4 and 5, 6 are started and operated by a circuit which includes a resistance heated thermal starter switch whose normally closed contacts 17 shunt one, 2, of the lamps and whose heater resistance 18 is connected in series with both lamps, a cathode heating transformer 10 whose primary winding 11 is connected across the circuit A.C. input terminals 12, 13 and whose secondary windings 8; 9 supply heating current at least to the cathodes of the lamp 1 unshunted by the contacts 17, and a ballast impedance which consists of or includes an inductor 14 serially connected with the lamps; as shown, the arrangement provides that via the contacts 17 the full voltage is first applied to the unshunted lamp 1 which, after its cathodes have been heated by windings 8, 9, starts, and its discharge current flows through the cathodes 5, 6 of the shunted lamp 2 and the heaterresistance 18 heating same until contacts 17 open to generate a high voltage pulse across inductor 14 which causes or assists lamp 2 to start. The transformer 10 may also have a main secondary winding 11, 16 across which the lamps are connected. In modifications the transformer 10 also heats either one or both of the cathodes 5, 6 of lamp 2. The cathode heating windings may be connected in voltage-aiding relationship with the discharge voltage applied across the lamps. The ballast may include a capacitor 15 and be capacitive. The lamp 1 may have an earthed starting strip 7. Specification 720,268 is referred to.
Patent GB-660820-A (GB)
Title: Improvements in or relating to carburettors for internal combustion engines
IPC: F02M3/045
Filed: 1949-10-11
Abstract: 660,820. Spray carburetters. JENKIN, A. Oct. 11, 1949, No. 31217/48. Class 7(iii) A device for cutting off the slow-running  fuel supply at overrunning comprises a valve 7, opened by an electromagnet 11, when the throttle valve 2 is closed and the engine speed above idling, to admit sufficient air to the slow-running passage 5 to put the slow-running jet 4.out of action. The valve 7 is carried by a spring arm 9 which also carries the electromagnet armature 12, a stop 13 limiting the open position of the valve. The electromagnet circuit contains a switch 16 closed by a wiper 18 on the accelerator pedal 3 when the throttle valve is closed, the wiper 18 contacting a terminal 20 to maintain the dynamo 15 connected to the battery charging cut-out 19 when the throttle valve is opened. The valve 7 may be arranged to shut off the fuel supply to the slow-running jet 4.
Patent GB-524560-A (GB)
Title: Improvements relating to bungs or closures for metal drums and other containers
IPC: B65D39/08
Filed: 1938-10-28
Abstract: 524,560. Closures for metal drums &c. WILLIAMS, M. W. Oct. 28, 1938, No. 31229. [Class 21] [Also in Group XXII] A closure for a metal container such as a drum or barrel comprises a neck 12, Figs. 2 and 5 formed from the stock of the container, with threads inside and outside, the free end of the neck above the threads being splayed outwardly to form a gasket-engaging surface for a screw bung. A cap seal may also engage the neck, and a reinforcing ring may engage the external threads, which ring may constitute a die 26, Fig. 2 or 34, Fig. 5, into which the neck is expanded by rotating a screwed member 37, Fig. 5, or by two cones 24, 25, Fig. 2, which expand a mandrel composed of segments 17. If the thread made by this mandrel is incomplete the neck may be rotated and a second impression made after a shim has been positioned between members 10, 13. The ring 34, Fig. 5, may be replaced by separable and removable segments which may be threaded. Various forms of outwardly-splayed ends are described. Specifications 391,050 and 392,830 are referred to.
Patent GB-1081053-A (GB)
Title: Hollow core cable oil
Inventor: RAKESTRAW JAMES ALLAN
IPC: C10M169/00
Filed: 1965-07-22
Abstract: A hollow core cable oil comprises a major proportion of a mineral oil having a pour point below - 25 DEG  C. and a viscosity in the range 15 to 24 cs. at 20 DEG  C., and a minor proportion of a straight chain alkyl benzene or mixture of straight chain alkyl benzenes having a viscosity in the range 4.5 to 15 cs. at 20 DEG  C. Preferably the alkyl benzenes have 6-15, more preferably 8-11 C atoms in the alkyl group.
Patent GB-209548-A (GB)
Title: Improvements in and relating to liquid elevators
IPC: F04F1/06
Filed: 1922-11-17
Abstract: 209,548. Sisson, N. Nov. 17, 1922. Direct air-pressure apparatus, automatic; valves for pressure fluid, actuation and arrangement of.-In pneumatic ejector apparatus com. prising two working chambers 1, 1<a> from which the liquid is alternately expelled by compressed gas, the inlet and exhaust valves for the gas are so interconnected that the gas may be used expansively up to a predetermined maximum delivery of liquid, and non-expansively above that maximum. The gas is admitted alternately to the chambers 1, 1<a> from a pipe 21 through valves 17, 18, 19 and pipes 24, 26, 30, 35, and is exhausted through pipes 30, 32, 35, 38, 40 and valves 18, 19, 20. The reversal of the valves may be effected by fluid pressure admitted to the ends of the valves by pilot valves 12 12a operated by the rise and fall of floats 8, 8a.
Patent GB-1213800-A (GB)
Title: Method of and apparatus for conveying sheets of glass
IPC: C03B35/18
Filed: 1969-06-23
Abstract: 1,213,800. Conveying glass. COMPAGNIE DE SAINT-GOBAIN. 23 June, 1969 [24 June, 1968], No. 31541/69. Addition to 1,078,878. Heading ClM. [Also in Divisions B8 and F2] Glass sheets heated to softening temperature are conveyed on rollers which are rigid and not subject to deformation, the rollers being provided with a resilient facing of fibrous refractory material in the form of a felt which is stable at the working temperature. The felt is preferably in the form of a ribbon wound helically round the roller with a space between successive terms of up to 1 mm., being attached to the roller by an air-dryable refractory cement. The felt is preferably of ceramic silico-aluminous fibres. The glass sheets may be carried by such rollers in a re-heat oven for tempering glass, at 780- 800‹ C.
Patent GB-627596-A (GB)
Title: A process for the production of macromolecular condensation-products from monomeric amino-polymethylene-carboxylic-acid-amides having more than 5 carbon atoms
IPC: C08G69/08
Filed: 1946-10-24
Abstract: Amino-polymethylene-carboxylic-acid-amides are polymerized by heating in a plurality of stages, the first stage to produce a pre-condensate being effected in presence of at least an equal weight of water. Viscosity stabilizers which act initially as catalysts, e.g. aliphatic mono- or di-carboxylic acids, or aliphatic diamines may be present.  In the examples: (1) o -amino-caproic-acid-amide, water and a little acetic acid are heated in an autocalve with isolation of ammonia.  Water is then distilled off and the residue further heated; (2) epsilon-amino-caproic-acid-amide and water were heated in an autocalve with a high-pressure reflux-cooler till all the ammonia has escaped.  Water is then distilled off and the residue heated, finally in vacuo.  The products may be spun into strong threads. Specifications 506,125 and 535,141 are referred to.
Patent GB-753555-A (GB)
Title: Improvements in and relating to cathode-ray tubes and particularly screen structurestherefor
IPC: H01J31/20
Filed: 1951-11-29
Abstract: 753,555. Colour television tubes. PHILCO CORPORATION. Nov. 29, 1951 [Dec. 1, 1950], No. 31661/54. Divided out of 753,442. Class 39 (1). A screen structure for a cathode-ray tube comprises an electron permeable conductive layer having on one side fluorescent material preferably in the form of red, blue and green emitting strips, and on the other side a plurality of " indexing " regions, preferably also in the form of strips, having a secondary emission ratio substantially different from that of the conductive layer. The indexing signals may be applied to the deflecting means, preferably deflecting coils to render the beam sweep linear, or used to control the timing of the signal sampling. The tube may be used in the sweep linearizing and control systems disclosed in U.S.A. Specifications 2,457,911 and 2,476,698. In one form, Fig. 3, which is particularly suitable for a dot sequential system, 22, 23, 24 are the tri-colour phosphor strips, 28 the conductive electron permeable layer, and 29, 30 the indexing strips, 27 being a glass backing plate which may be part of the tube envelope. In manufacture, the phosphor strips are coated with lacquer, then with conductive material 28 by settling, after which the lacquer is balsed out. The indexing strips 29, 30 are then evaporated on to the conductive layer through a mask. The indexing strips may have a larger or smaller secondary emission ratio than that of conductive layer 28. Suitable materials are aluminium of low secondary emission ratio and caesium, caesium oxide and silver mixtures, or gold, of high secondary emission ratio. The indexing strips and conductive layer may each have regions of different secondary emission ratios provided that they lie in mutually exclusive or alternating ranges. In modifications there may be spaces between adjacent phosphor strips, the indexing strips being wider than the phosphor strips by twice the beam diameter, Fig. 5 (not shown), or the indexing strips may be electron permeable and arranged over the green phosphor strips, there being no gaps between any of the phosphor strips, Fig. 6 (not shown). The signals derived from the indexing strips need not in general be used for indexing purposes. Specifications 753,441, [Group XXXV], also is referred to. '
Patent GB-706390-A (GB)
Title: Improvements in machines for the continuous production of zig-zag or wave-shaped metallic wires
IPC: B21F1/04
Filed: 1952-12-15
Abstract: 706,390. Corrugating. VIRALU SOC. ANON. Dec. 15, 1952 [Jan. 10, 1952], No. 31740/52. Class 83 (4) Wire is corrugated by feeding it axially between meshing right and left handed worms spaced apart a distance equal to the diameter of the wire. Wire 5 is fed axially between worms 1, 2 rotated in directions f<SP>1</SP>, f<SP>2</SP> and is supported by flexible fingers 3 carried on a rotary member 6 of large diameter and projecting into the worm clearance. As the worms rotate the wire is bent into zig-zag form, Fig. 5, by the teeth and is fed axially with the fingers 3. A small bend B may be formed in the corrugation by a projection on one of the worms.
Patent GB-841996-A (GB)
Title: Improvements relating to the manufacture of upholstered panels using dielectric heating
Inventor: STANLEY EDMUND CHRISTOPHER
IPC: B29C65/04
Filed: 1955-11-07
Abstract: 841,996. Bonding by dielectric heating. RADIO HEATERS Ltd. Jan. 25, 1957 [Nov. 7, 1955], No. 31791/55. Class 39(3). [Also in Group VIII] In the formation of an upholstered panel using radio frequency dielectric heating to bond two sheets of material forming the sides of the panel, pressure is applied to selected portions of the panel to compress them in sequence progressively over the area of the panels, the portions then being bonded while they are under pressure. Undue strain in the material forming the sides of the panel is thus avoided. As shown in Fig. 3, electrodes 14a-14e are lowered in sequence to compress portions of material 8 and 12, the cover material 8 moving from right to left over wadding 10 without undue stretching. Welding power is then applied between the electrodes 14 and the common electrode 18 and bonding takes place. The backing material 12 of the panel so formed remains approximately flat and a pronounced quilting effect is produced on the upper surface of the panel. Unnecessary compression of the wadding layer may be reduced by loading bars 36, Fig. 6, which consist of a series of rods or strips, and are inserted under the cover material before the bonding operation. Withdrawal of the bars after the fluting welds have been completed results in a maximum formed shape of the cover 8 and a deep upholstered appearance of the panel. The cover material and backing material may be thermoplastic sheeting, e.g. P.V.C., which may be either unsupported or supported on an open-weave backing cloth. The wadding may consist of felt, cellulose, paper, sponge rubber, foamed vinyl, polyurethane foam, or synthetic fibre ; coatings or sheets of glues or resins may be used to promote the bond between the cover and backing. Pneumatic rams or a series of cams may operate the movable electrodes which may be given a shape corresponding to the form of the indentations required.
Patent GB-806438-A (GB)
Title: Improvements in and relating to fire-proof and heat insulating coating compositions
IPC: C09D5/18
Filed: 1955-02-21
Abstract: Fire-proof and heat insulating coating compositions are prepared by subjecting exfoliated vermiculite granules either to water or a solvent compatible with polyvinyl acetate, rolling the granules in a wet state and incorporating with the rolled vermiculite a binder of polyvinyl acetate (described in Group IV (a)).  Tests describe the application of one or more layers of the compositions to (1) aluminium plates, (2) wooden panels, (3) plaster slabs, (4) fibre-board, and (5) double-walled partitions comprising plywood panels on a wooden frame.  Vermiculate.-Vermiculite for use in the above compositions may be prepared by passing the exfoliated vermiculite granules in a wet state between steel rollers, which may rotate at different speeds to give a slight drawing effect.ALSO:Coating compositions are prepared by subjecting exfoliated vermiculate granules to water or a solvent, rolling the granules whilst in a wet state and incorporating with the rolled vermiculite a binder of polyvinyl acetate, e.g. in aqueous emulsion. The compositions may contain pigments, e.g. titanium dioxide and antimony trioxide, plasticisers, e.g. tricresyl phosphate, and sodium phenyl phenate.  The vermiculite granules, preferably a mixture of different granule sizes, may be passed one or more times between rollers, which may rotate at different speeds to give a drawing effect.  The compositions may be used for fire-proofing and heat-insulating, and may be applied, e.g. with a spatula or brush or by spraying, to metal, e.g. iron and aluminium, wood, fibre board, cement and plaster.
Patent GB-670065-A (GB)
Title: Improvements in or relating to display stands for seed packets and other substantially flat articles
IPC: A47F7/14
Filed: 1949-12-12
Abstract: 670,065. Display stands. WARD, J. B., and CHALK, W. K. C., (trading as TECHNICAL ADVERTISING SERVICE), and FRANKLIN, R. S. Dec. 12, 1950. [Dec. 12, 1949] No. 31864/49. Classes 52 (i), 52 (iii) and 52 (v). A display unit for seed packets or other flat articles comprises a trough of rectangular crosssection, having end walls, and having the free longitudinal edges turned inwardly, the trough being formed of a single piece of sheet material and being divided into compartments by spacing members. As shown, the trough 10, pressed from aluminium alloy sheet, is compartmented by members 16, riveted at 17 to the back 18, and extending, parallel to the side 11 to the inturned flange 13. End walls 12 and sides 11 are provided with apertures 19, 21 so that units may be bolted together to form a rack, surmounted by an advertising panel 25, which may stand on a counter, or be hung on a wall, by means of nails passing through apertures 22. A display stand may be formed by bolting units to a tubular metal framework.