baber/WOPTO huggingface dataset:
Patent GB-1349584-A (GB)
Title: Process for producing ammonium diuranate
IPC: C01G43/00
Filed: 1971-11-04
Abstract: 1349584 Ammonium diuranate WESTINGHOUSE ELECTRIC CORP 4 Nov 1971 [29 Dec 1970] 51308/71 Heading C1A Ammonium diuranate is prepared from an acidic aqueous solution containing uranyl fluoride and hydrogen fluoride by introducing aqueous ammonium hydroxide of a molarity of at least 6 at a limited rate into the acidic solution until the pH of the solution is 4À5 to 6À0, neutralization of the hydrogen fluoride then being incomplete and the uranyl fluoride unchanged, and thereafter rapidly mixing the solution having a temperature of 125-175‹ F. with an aqueous ammonium hydroxide solution having a temperature of less than 100‹ F. and a molarity of about 6 in an amount of at least twice the stoichiometric quantity required to convert all the uranium in the solution to ammonium diuranate, such that the resulting solution has a pH of at least 9À5 but not substantially more than 10, digesting the resulting slurry of precipitated ammonium diuranate at 104-158‹ F. for 5-30 minutes and separating a major proportion of the water to produce a flowable or pumpable ammonium diuranate slurry. This slurry may be pumped to a kiln and dried, calcined to UO 3  and U 3 O 8  and then reduced to uranium dioxide which may be pelleted and sintered. The acidic aqueous solution may be made by aqueous hydrolysis of UF 6 , the neutralization to pH 4À5-6À0 leaving 5-15% of the hydrogen fluoride unchanged. An arrangement of suitable apparatus is given.
Patent GB-1092118-A (GB)
Title: Formation of corrosion resistant coatings on reactor walls
IPC: C01B13/22
Filed: 1964-12-17
Abstract: The imperforate metal walls of a reactor suitable for effecting the oxidation of a titanium tetrahalide to TiO2 are coated by applying an aqueous slurry of white, particulate TiO2 to the said walls and drying the coating to obtain a glazed, thermoreflective coating of TiO2 firmly adherent to said walls and from 0.001 to 0.1 inch thick. The metal walls may be of Ni, Fe, steel, Al, high nickel alloy, Zr, Ti or thoriated nickel. In examples, TiCl4 is oxidized to TiO2 with oxygen in a reactor with TiO2-coated nickel or steel walls.ALSO:A reactor suitable for effecting the oxidation of a titanium tetrahalide to tianium dioxide at elevated temperatures comprises a reaction zone, the imperforate metal walls of which have been coated with an adherent, glazed, thermoreflective coating of TiO2 by applying an aqueous slurry of TiO2 to the walls and drying the coating formed.  The metal is, e.g. Ni, Fe, Al, Zr, Ti, steel, a high nickel alloy or thoriated nickel.  In the drawing (not shown), wall 7 of the reaction zone has coating 8 of titanium dioxide.
Patent GB-1474041-A (GB)
Title: Indicating circuits for fm stereophonic receivers
IPC: H04H1/00
Filed: 1974-11-27
Abstract: 1474041 Tuning indicators; stereophonic radio receivers SONY CORP 27 Nov 1974 [29 Nov 1973] 51418/74 Headings H3Q and H4L An indicating circuit for an FM stereophonic receiver for providing dual indications of tuning and channel balance has a switch SW1, SW2 for selectively supplying a tuning signal or first and second signals representing the levels of the audio signals transmitted in first and second signal channels 3L, 4L, 5L, 6L and 3R, 4R, 5R, 6R of the receiver to a visual indicator 7. The switches SW1 and SW2 are shown connecting the meter 7 to outputs of left and right channel level detecting circuits 5L, 6L and 5R, 6R so as  to enable channel balance to be adjusted. The pointer 9 of the meter 7 is displaced in accordance with the difference between the input signals applied to the input terminals 7 1  and 7 2 . The channel level detecting circuits are fed from a stereo signal decoder 2 via left and right audio channel preamplifiers 3L and 3R. By switching switches SW1-SW2 to the other position the output from an FM detector circuit 13 is connected to the meter 7 which indicates a zero or null value when the tuner is correctly tuned. The switches SW1, SW2 may be of push button type. The meter 7 may include an input coupled to an algebraic combining circuit which is selectively supplied with the signals from the switches SW1 and SW2. The meter 7 may include an internal D.C. conversion circuit to replace the rectifier circuits 6L, 6R. Also the "tuned" indication of the meter 7 may be provided by a maximum deflection of the movable pointer 9 rather than a null indication.
Patent GB-1247272-A (GB)
Title: Novel phosphoroamidothioates and their use as herbicides
Inventor: SCHRADER GERHARD
IPC: C07F9/24
Filed: 1969-10-28
Abstract: 1,247,272. Herbicides containing phosphoroamidothioate esters. FARBENFABRIKEN BAYER A.G. 28 Oct., 1969 [28 Oct., 1968], No. 52741/69. Heading A5E. [Also in Division C2]  A herbicidal composition contains as active ingredient a compound of the formula: wherein R and R' are the same or different C 1 -C 4  alkyl radicals. The composition may include a liquid or solid diluent or carrier and an emulsifying or dispersing agent and may be in the form of a solution, emulsion, suspension, powder, paste or granulate. The active compounds may also be used in admixture with other herbicides, e.g. phenoxy compounds, chlorophenols, diphenyl ethers or triazines and nematocides, soil disinfectants, plant growth regulators and fertilisers may also be present.
Patent GB-1275015-A (GB)
Title: Improvement in the extrusion of seamless tubing
IPC: B21C23/08
Filed: 1970-11-05
Abstract: 1275015 Extruding CEFILAC 5 Nov 1970 [5 Nov 1969] 52758/70 Heading B3P A hot extrusion process for making metal tubes comprises inserting a pierced billet into an extrusion container and extruding the billet through a die using a mandrel whose diameter is smaller than the pierced bore so as to leave an annular gap between the bore and the mandrel. The provision of the gap ensures that vitreous lubricant in the bore is not wiped off as the mandrel is inserted. The bore diameter exceeds the mandrel diameter by 5-30% of the difference between the container inner diameter and the mandrel diameter. The extrusion is effected by an hydraulic press which achieves full pressure in 0À5-4 seconds using a bushel valve or two parallel valves or by using valves with automatic programmed opening. An example is given of extruding carbon steel. In operation, the billet first flows into contact with the container wall and then with the leading end of the mandrel to trap the lubricant.
Patent GB-1125705-A (GB)
Title: Improved electrical switch of the vacuum type
Inventor: FLURSCHEIM CEDRIC HARALD
IPC: H01H33/66
Filed: 1964-12-31
Abstract: 1,125,705. Vacuum switches. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 30 Nov., 1965 [31 Dec., 1964], No. 53012/64. Heading H1N. The contacts 1, 2 of a vacuum switch are mounted at the ends of conducting stems 3, 4 which are mounted in insulating end walls 17, 18 of the evacuated enclosure, the side wall 6 of the enclosure comprising an extensible metal bellows. The bellows is attached at its ends to metal rings 9, 10. The contact stems 3, 4 are attached by metal diaphragms 13, 14 to further, concentric rings 15, 16 which are spaced from rings 9, 10 by glass spiders 11, 12, the ends of the enclosure being sealed by bodies 17, 18 of cast or moulded synthetic resin formed with corrugations to increase the creepage path. In a modification (not shown) the bellows may be replaced by a simple metal wall of a shape having the necessary resiliency. For example the wall may have a hyperbolic longitudinal cross-section; only part of the side wall need be flexible.
Patent GB-1123018-A (GB)
Title: Production of unsaturated lactones having a five-membered ring
Inventor: KUTEPOW NIKOLAUS VON
IPC: C07C51/54
Filed: 1965-12-17
Abstract: Unsaturated g -lactones are prepared by reacting olefins with CO at elevated temperature and superatmospheric pressure, in presence of either (a) 0.01-20 wt. per cent (based on olefin) Pd and 0.2-150 parts (based on wt. of Pd) HX (X = halogen) or (b) 0.01-20 wt. per cent (based on olefin) Pd-halide, and optionally HX; the amount of HX used in either alternative not exceeding 20 mole per cent of the olefin.  Ethylene gives a mixture of products of formulae <FORM:1123018/C2/1> which may be hydrogenated to g -caprolactone. The use of propylene, mixed butylenes and butadiene is also exemplified; other starting materials mentioned are butene-1, 2-ethylhexene-1, allyl chloride, ethyl crotonate and acrylonitrile.
Patent GB-1367333-A (GB)
Title: Apparatus for emptying a container
IPC: B65F3/04
Filed: 1971-11-19
Abstract: 1367333 Emptying dustbins into dustcarts ZOLLER-KIPPER GmbH 19 Nov 1971 [11 Jan 1971] 53850/71 Heading B8E Apparatus for emptying a dustbin 3 into a dustcart (not shown) comprises a pair of swivel levers 1 spaced apart on a common shaft 2 at the rear of the dustcart. Each lever 1 is composed of an arm 1a, substantially vertical in the rest position, joined to an arm 1b, substantially horizontal in the rest position (shown in full lines). At the free end of each arm 1b is attached a support plate 5. The two plates 5 can pivot about a common axis 6 parallel to the axis of the shaft 2. Each plate 5 is arranged on the inner surface of its lever 1 and has on its top edge an inner receiving and holding element 7 and an outer receiving and holding element 8 as well as an upper supporting edge 9 for an eyeletshaped handle 10 on either side of the dustbin 3. In the rest position a tension spring 12 holds each plate 5 in an oblique position limited by an abutment plate 11 engaging the underside of each arm 1b. Leading side arm 10a of the handle 10 is received in inner slot 7a while trailing side arm 10b is received in outer slot 8a. In the engaged position the centre of gravity S of the dustbin 3 is beyond the vertical plane 6a containing the axis 6 towards the dustcart and during the initial lift the plates 5 are inclined inwards gripping the side arms 10a more securely. When fully raised to empty the dustbin 3 the swivel levers 1 are in the broken line position and, as shown, the plates 5 have pivoted into a position again limited by the abutment plates 11 engaging the arms 1b.
Patent GB-1364494-A (GB)
Title: Electric kettles or the like
IPC: H05B1/02
Filed: 1972-11-20
Abstract: 1364494 Electric kettles BACKER ELECTRIC CO Ltd 20 Nov 1972 [20 Nov 1971] 54004/71 Heading A4A [Also in Division H5] A steam-cut-out is made adjustable for different electric kettle sizes by a dome 12, comprising inner and outer tubes 13, 17 having closed ends 14, 15, arranged to extend slidably upwards about a central steam pipe 8 and a concentric tube 10. The tube 10 is brazed to the element sheath at its base 9, steam passing to the steam pipe via hole 16. A seal ring 19 and brazed fitting 20 seal and retain the dome relative to the steam pipe 8. A vent hole 15 to prevent siphoning is provided. The steam pipe communicates with the cut-out switch 3 at pipe end 7. A reset button 5 is provided.
Patent GB-1241298-A (GB)
Title: Improvements in or relating to equipment for the random or sequential selection of indicia
Inventor: BUSBY LESLIE
IPC: G07C15/00
Filed: 1967-11-29
Abstract: 1,241,298. Random selection device. L. BUSBY and E. BUSBY. 13 Dec 1968 [29 Nov., 1967], No. 54237/67. Heading A6H. The indices of banks of indicia are illuminated randomly or in sequence by electrical means which, when manually switched off, leave indices illuminated and thereby selected. Powered rotary switches 12, 13 and 15 govern the illumination of the numbers of banks 1A, 1B. Manual switches 14 and 16 limit the numbers available for selection. The numbers need only be illuminated when selected.
Patent GB-1221005-A (GB)
Title: Suspension systems in motor vehicles
Inventor: ALDEN JOHN HAROLD
IPC: B60G9/00
Filed: 1968-11-15
Abstract: 1,221,005. Vehicle spring suspensions. VAUXHALL MOTORS Ltd. 2 Oct., 1969 [15 Nov., 1968], No. 54377/68. Heading B7D. In a vehicle beam axle suspension system, a U-shaped suspension member 10 is disposed with its arms 12, 14 directed rearwardly and is pivotally connected, in the central region of its base 16, to a vehicle body portion, the member 10 supporting an axle 22 and having a transverse leaf spring 44 flexibly supported by the ends of its arms, the vehicle body portion being mounted on the leaf spring by means of a pair of spaced mounts 50, 52. The pivotal connection 18 of the member 10 to the vehicle body comprises brackets 68, 70 fixed to the member 10 and pivoted to a transverse rod (62) (Fig. 2, not shown), which is flexibly supported by brackets 20 on the body portion. The rod (62) may pass beneath the vehicle propeller shaft 38, being appropriately bent centrally for this purpose. The member 10 may additionally be connected to a differential housing, and also the vehicle body by means of Panhard rod 58. The latter may, alternatively, be connected to the axle and body. Vibration dampers 74, 76 may be provided between the body and the axle or, as shown, the ends 40, 42 of the arms of member 10. These ends 40, 42 may be splayed outwardly to enhance roll-resistance of leaf spring 44. Some, or all, of the suspension-to-body connections may comprise elastomeric members. Specifically, the pivotal connection 18 comprises elastomeric bushes (64, 66), the ends of the leaf spring are supported by elastomeric blocks 46, 48, and the mounts 50, 52 comprise elastomeric pads.
Patent GB-1157628-A (GB)
Title: Improvements in or relating to Machines for Cutting Grass and like Vegetable Matter
Inventor: HOWLETT REX RICHARD
IPC: A01D34/42
Filed: 1966-04-06
Abstract: 1,157,628. Lawn mowers. WILKINSON SWORD Ltd. 20 June, 1966 [6 April, 1966], No. 55936/68. Divided out of 1,157,626. Heading A1F. A lawn mower comprises a main frame having frame members 20 and 22, a subframe having end plates 42 and 43 pivotally connected to the main frame by the rods 52 and 56, a stationary cutting blade 46 and a cylindrical rotary cutter 45 mounted on the sub-frame, and is characterised in that a locking means in the form of a rod 60 and slots 62 in frame-members 20 and 22 are provided for locking the subframe rigid with the main frame, the locking means being such that the position of the sub-frame relative to the main frame and hence the height of the cutter unit 46, 41 above the ground can be adjusted. The rod 60 which passes through the main and sub-frames has narrow necks 68, and the slots 62 have holes 64 joined by slots 66 (Fig. 1) so that when the rod 60 is moved axially to align its narrow necks with the members 20 and 22, the sub-frame can be pivoted about the common axis of 52, 56 to adjust the cutter height, after which the rod 60 is moved back to engage a hole 64. The gap between the blade 46 and the cutting cylinder 41 can be altered by a knob 51, and the mower may be driven manually or by a motor located on the cross-member 24 of the main frame.
Patent GB-1242597-A (GB)
Title: Detergent compositions containing stabilised enzyme
Inventor: EYMERY JEAN-PIERRE D B
IPC: H02M7/515
Filed: 1968-11-26
Abstract: 1,242,597. Proteolytic enzyme-containing detergent composition. PROCTER & GAMBLE CO. 26 Nov., 1968 [29 Nov., 1967; 27 Aug.. 1968], No. 66044/68. Heading C5D. A granular proteolytic enzyme-containing detergent composition comprises, by weight: (1) from 60 to 98% of a mixture of an organic detergent and an alkaline builder salt in a weight ratio of alkaline builder salt to organic detergent of 30:1-1:4; (2) from 0À001 to 2% of a proteolytic enzyme having enzymatic activity in the pH range 5- 12 and the temperature range 50-200 F.; and (3) a proteolytic enzyme-stabilizing amount of a partially hydrolysed and partially solubilized collagen having an average molecular weight of at least 5000. Specific examples of proteolytic enzymes suitable for use in the present invention are pepsin, trypsin, chymotrypsin, collagenase, keratinase, elastase, the subtilisins, papain, ficin, bromelin, carboxy peptidase, amino peptidase, aspergillopeptidase A and B and those proteolytic enzymes isolated from streptomyces species, e.g. Streptomyces griseus. The proteases may be utilized in the pure form or as powdered commercial enzyme compositions containing these enzymes in an amount 2-80% by weight, the balance being sodium or calcium sulphate. The partially hydrolysed and partially solubilized collagen preferably has an average molecular weight of 5000-250,000 and is suitably gelatin. Generally the collagen is used in a weight ratio of collagen to pure protease in the weight ratio 100:1-1:10, preferably 20:1-1:1. The organic detergents suitable for use in the composition include any of the conventional materials used in detergent compositions, viz. soap, anionic detergents, nonionic detergents, zwitterionic detergents, and ampholytic detergents. The alkaline builder salt may be a conventional inorganic or organic builder salt, e.g. alkali metal carbonates, phosphates and silicates, polyphosphonates, polyacetates and polycarboxylatcs. Preferred organic detergents include sodium alkyl benzene sulphonate, sodium alkyl sulphonate and mixtures thereof in which the alkyl groups contain 10-18 carbon atoms. The specific examples employ sodium tetrapropylene benzene sulphonate as detergent and a mixture of sodium tripolyphosphate and sodium silicate as the alkaline builder. The composition may also contain perfumes, anti-tarnishing agents, inert salts such as sodium sulphate, bacteriostatic agents, dyes, fluorescers, sodium perborate, dihydrogen disodium pyrophosphate, sodium bisulphate, sodium bicarbonate and sodium carboxymethylcellulose. In the preparation of the composition the enzyme and collagenderived protein is preferably mixed with water into a slurry or solution and subsequently sprayed on to one or more of the granular components comprising the detergent composition to provide enzyme-containing granules.
Patent GB-1291938-A (GB)
Title: Method for recovering trimethylolpropane
IPC: C07C31/22
Filed: 1970-11-26
Abstract: 1291938 Purification of trimethylolpropane KOEI CHEMICAL CO Ltd 26 Nov 1970 [28 Nov 1969] 56239/70 Heading C2C Trimethylolpropane, prepared by reacting formaldehyde and n-butyraldehyde, in an aqueous medium, in the presence of a basic catalyst, is isolated by steam distillation using superheated steam, under reduced pressure.
Patent GB-1343360-A (GB)
Title: Densified polyurethane foam
IPC: C08J9/00
Filed: 1971-12-03
Abstract: 1343360 Densified polyurethane foam OLIN CORP 3 Dec 1971 [7 Dec 1970] 56267/71 Addition to 1240649 Heading C3R [Also in Divisions B4-B5] Flexible densified polyurethane foam is prepared by (a) allowing a polyurethane foamforming reaction mixture to rise and form a partially cured cellular material, (b) applying a compressive force to the partially cured cellular material after a period of 0 to 10 minutes after completion of the rise, thereby to reduce the volume of the partially cured material to between 2/3 and 1/10 of its original volume and (c) removing the compressive force and completing the cure of the compressed cellular material, with the proviso that where the period of time between completion of the rise and application of the compressive force is 0 to 2À5 minutes the partially cured cellular material is maintained at an environmental temperature of 45 to 400‹ F. for the period, where the said period is 2À5 to 5 minutes the environmental temperature is 45 to 200‹ F. and where the said period is 5 to 10 minutes the environmental temperature is 45 to 110‹ F. for the period, the polyol employed in the foam-forming reaction mixture comprising a blend of a first polyol of M.W.2000-10,000 and a second polyol of M.W. 100-1500, in a weight ratio of first polyol to second polyol of 9 : 1 to 1 : 4. The first and second polyols are preferably polyether polyols and most suitably are oxypropylated glycerines. A filler, preferably barytes, may be added to the foam-forming reaction mixture. Conventional polyisocyanates, catalysts, blowing agents and surfactants are employed in the foamforming reaction mixture. Preferably the environmental temperature is 70 to 110‹ F. The partially cured foam is compressed by rollers or platens. The compressed foams may be used for making foam cushions, pillows, mattress pads, automobile interior paddings, bumper guards, case liners, paddings for delicate instruments and for the backing of rugs, tiles and carpets.
Patent GB-1249978-A (GB)
Title: Weatherproof garment
Inventor: CHAPMAN DONALD
IPC: A41D3/08
Filed: 1967-12-12
Abstract: 1,249,978. Weatherproof garment. UNIROYAL Ltd. 11 Dec., 1968 [12 Dec., 1967], No. 56350/67. Heading A3V. [Also in Division E1] A weatherproof garment comprises a number of vertically spaced members 1-5 encircling the body of a wearer, adjacent members being joined by flexible weatherproof material 6-10 forming the sides and top of the garment, the bottom of the garment being formed by a web 16 having an orifice 17 for the legs, the garment being suspended by its top portion 10 from the head of the wearer. The inner surface 15 of portion 10 may have a slip finish so that the wearer may turn his head freely. The material 6-10 may be of one piece, and patterned or camouflaged woven or sheet plastics material may be used. The members 1-5, which may be elliptical, square or preferably circular shaped, and of circular section, may be of plastics or light alloy, and may be secured to the material 6-10 by stitching or hot welding. A number of ventilation holes 14 are punched in a transparent visor 13 in the material 6. The orifice 17 has elastic sides 18. The garment is collapsible to a substantially flat disc, and carrying handle 19 is provided. The wearer may sit totally enclosed within the garment, which is stated to be suitable for anglers or as a bird watching hide. Sliding clasp fastened arm holes and internal pockets may be provided. (For Figure see next column)
Patent GB-1373948-A (GB)
Title: Light signalling units and a method of producing same
IPC: F21S8/00
Filed: 1971-12-06
Abstract: 1373948 Making light signal units EUROMATION ENSTALT 6 Dec 1971 [12 Dec 1970] 56489/71 Heading B3A [Also in Divisions F4 and H2]  Light signal units, see Division F4, are made by shearing a metal strip 28 to obtain a number of shaped elements 29 each including conductor elements 3, 4 one of which has a discontinuity 12 therein. An insulating plastics body 2 provided with a recess 13 exposing the discontinuity 12 is moulded on each element 29 and then the elements 29 and the individual terminals 5 are separated by shearing the metal strips 30. The terminals 5 are then clawed to respective conductors 6 of gas discharge bulbs 1 and a current limiting resistor 11 is inserted to bridge the discontinuity 12 in the conductor 4. After testing the electrical characteristics of the units they may be separated by shearing the longitudinal strip 31.