baber/WOPTO huggingface dataset:
Patent GB-1517436-A (GB)
Title: Method of separating components of an isotopic mixture
IPC: H01S3/08
Filed: 1976-05-27
Abstract: 1517436 Isotope separation using irradiation KRAFTWERK UNION AG 27 May 1976 [30 May 1975] 22178/76 Heading C1A An isotope mixture is irradiated at such a frequency that the molecules of the component(s) which are to be separated from the mixture are selectively excited; chemical reaction then takes place between these excited molecules and free atoms or free radicals as a co-reactant which has been obtained by dissociation of a starting material, the mixture obtained is then removed from the reaction zone and the reaction product is separated by known means outside the reactor, the rate of flow of the mixture through the reactor is regulated to ensure that the coreactant is already recombining to form the starting material. In the Example an isotopic mixture of UF 6  is treated to selectively excite 235 UF 6  which may react with atomic hydrogen, nitrogen or oxygen or with CH 3  or CHO radicals to form UF 5  or UF 4 .
Patent GB-499972-A (GB)
Title: Improvements in refractory materials
IPC: C04B35/14
Filed: 1937-08-12
Abstract: Refractory moulds for casting metals are formed from an aqueous mixture containing sand, a water-soluble compound of silica, e.g. sodium silicate, as binding agent, and a substance which precipitates a silicon compound from an aqueous solution of the binding agent, and are expanded before use in casting by heating to a temperature at which quartz present in the sand is converted to tridymite.  The addition of the precipitating substance, which may be a metal or metalloid oxide or oxyhydrate, e.g. calcium oxide, allows the conversion of quartz to tridymite and the expansion of the mould (which is necessary in order to compensate for the shrinkage of the metal subsequently cast therein) to proceed at a lower temperature, i.e. 900 C. instead of 1200-1300 C.  The expansion may be reduced, if required, by replacing some of the sand by a substance which will not expand during the heating, e.g. burnt clay.
Patent GB-1141761-A (GB)
Title: Method and apparatus for cutting a continuous strip from a web
IPC: B29C48/08
Filed: 1967-05-12
Abstract: 1,141,761. Cutting webs. VELUWSE MACHINE INDUSTRIE N.V. 12 May, 1967 [18 May, 1966], No. 22214/67. Heading B4B. An apparatus for forming a continuous strip 12 from a web 1, e.g. of rubber, comprises a conveyer 2 for feeding the web in a stepwise manner over a cutting block 3, a knife 7 cooperating with the block and having at least one cutting edge arranged to cut the web at an angle to its longitudinal direction such that alternate knife cuts start from one lateral extremity and the remaining cuts start from said other lateral extremity and terminate short of said lateral extremity. The conveyer roller 5 may be driven stepwise by means of an hydraulic or pneumatic piston-and-cylinder device 18. The knife 7 may have two curved blades 9, 10 mounted on a shaft which is rotated by a motor (11, Fig. 2); alternatively, the knife may have only one blade and be raised and lowered to effect the cutting. Tension rollers (14, 15) are provided.
Patent GB-645044-A (GB)
Title: Improvements in, or relating to, tripods for the use of photographers
IPC: F16M11/38
Filed: 1948-08-24
Abstract: 645,044. Tripods. LYCETT, F. C. O. Aug. 24, 1948, No. 22238. [Class 52 (iii)] A tripod has pivoted folding legs of channel section in two or more parts 5, 6 of successively smaller crosssection the walls of the channels being strengthened at the hinge points by inserted spacers 8. The tripod head has a vertically adjustable rod or tube 14 clamped in a sleeve 13a by a nut 20.
Patent GB-1476559-A (GB)
Title: Apparatus for developing electrophotographic materials
IPC: G03G15/10
Filed: 1975-05-22
Abstract: 1476559 Developing electrostatic images HOECHST AG 22 May 1975 [28 May 1974] 22291/75 Heading G2H Latent electrostatic images on copy material 13 are developed by liquid developer from roller 5 and the developer is distributed by soft and porous roller 7 as the copy material passes towards the nip of rollers 8 and 9. Preferably the roller 5 has a PVC surface, the roller 7 is covered with plush or nylon velours and the roller 8 has a ceramic surface. The rollers 6 and 9 preferably have rubber coatings. Spray tube 10 applies liquid developer to the roller 5, and preferably has two rows of openings, each at 5 degrees to 15 degrees from the vertical.
Patent GB-1219932-A (GB)
Title: Improvements in electrolytic deposition of zinc
IPC: C25D3/22
Filed: 1968-05-10
Abstract: 1,219,932. Electro-depositing bright zinc. LEA-RONAL Inc. May 10, 1968 [May 22, 1967], No.22309/68. Heading C7B. Bright zinc is electro-deposited from an aqueous alkaline bath, preferably of pH above 12, which is devoid of or contains only a small amount of cyanide and contains a dissolved zinc compound and as an additive a water-soluble reaction product of molecular weight above 250 formed from an alkylene polyamine containing one or more tertiary amine or quaternary ammonium groups and an epihalohydrin. Typically zinc is added as the oxide, sulphate or acetate together with sodium or potassium hydroxide and the watersoluble additive is a condensation product of molecular weight 4000 to 5000 formed from epichlorohydrin and dimethylaminopropylamine. Preferably known aldehyde brighteners for zinc are also included in the bath such as vanillin, hydroxybenz aldehyde, anisic aldehyde and their bisulphite addition products. Plating may be effected on to steel cathodes at 25 to 50 amps/sq. ft.
Patent GB-838457-A (GB)
Title: Ball joint for the suspension of motor vehicle wheels
IPC: F16C11/06
Filed: 1957-07-15
Abstract: 838,457. Ball-and-socket joints. LANGEN, V. July 15, 1957 [Set 8, 1956], No. 22313/57. Class 65(2) The ball pivot 3 is extended from its neck 12 by a part-spherical portion 4 of the pivot head surmounted by a conical portion 5 of the head which faces away from the pivot, and a hemispherical cap 6 having a conical recess is fitted on the conical portion 5. A hollow cone 7 and a flexible spacing layer 8 are arranged between the conical surfaces of the pivot head and the cap, and the whole head is seated in a ball cup 2 provided with grooves 18 running into slots 15 which enable it to be expanded radially to embrace the head. Oilways are stamped in the inner surface of the cone 7. Cup 2, cap 6 and ,cone 7 may be of steel, bronze, or plastics material.
Patent GB-1221663-A (GB)
Title: Improvements relating to vending machines
Inventor: WHITE BARRINGTON JOHN LEONARD
IPC: G07F5/22
Filed: 1968-05-10
Abstract: 1,221,663. Coin totalizer and vending machine; counters. SIGMATRON Ltd. 12 May, 1969 [10 May, 1968], No. 22347/68. Headings G4D and G4V. A coin totalizer for use with a vending machine dispenser comprises six pulse generators 13a to 13f which, on insertion of a penny, a threepence or a sixpence, send one, three, or six pulses respectively to an integrated circuit binary counter 16. The vending machine includes a commodity release circuit responsive to the counter. On insertion of a coin, microswitch 10, 11 or 12 is closed and a monostable circuit pulse generator 13a, 13c or 13f sends a pulse to line 14 after 5mS and also causes all the pulse generators corresponding to lower coin values to be triggered in turn and send a pulse to line 14 at 5mS intervals one after the other. The counter 16 is connected to a resistor (or diode) decoder 18 having fifteen selector sockets 19, each corresponding to a different money value. The decoder 18 can be connected to commodity releasing relay circuits 20a to 20d by rotary switches, or by way of sockets 19, plugs 21 and a bi-stable thyristor circuit for each commodity (Fig. 3, not shown), included in the relay circuits. A circuit 28 resets the counter to zero and blocks the pulse generators if the electrical supply fails and also before a coin is inserted. In a modification (Fig. 5, not shown), the totalizer can count in tens by the addition of a further coin contact and a monostable circuit connected to the generator 13d so that, on insertion of a sixpence, six pulses are generated as before and then generator 13d is actuated by the monostable to generate four more pulses. Between each microswitch and its generator there may be a resistor or a capacitor, the latter operating to prevent a false count if the microswitch sticks. To prevent error signals, a gate may be provided which only allows pulses into the counter for 50mS.
Patent GB-258858-A (GB)
Title: Improvements in or relating to power generating plants
IPC: F01D13/02
Filed: 1926-09-10
Abstract: 258,858. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Allen, R. C.). Sept. 24, 1925, [Convention date]. Motor power plant; mounting and supporting. -The several turbines 10, 11, 12 of a power plant are arranged end to end with their shafts in one vertical plane and the steam connections between them are made by rigid pipes 23. Expansion of the pipes and of the turbine casings is permitted by anchoring one end of one turbine by bolts 29 and leaving the other end of that turbine and both ends of the other turbine free to move longitudinally as by means of slotted bolt holes 31 - - 35. The high-pressure turbine may be coupled to one electric generator 14 and the low-pressure turbine to another 16 and the two generators need not run at the same speed. The low-pressure turbines are arranged in parallel by means of the pipes 24. 25. The shaft couplings 13, 15, 17 may be flexible to permit longitudinal movement. The high-pressure turbine may be replaced by high-pressure and intermediate turbines. The steam-pipes are situated below the usual diametral flanges of the turbine casings.
Patent GB-1276583-A (GB)
Title: Method and device preferably for domestic use for preparing ice cream
IPC: B01F7/16
Filed: 1970-05-08
Abstract: 1276583 Mixing apparatus TIGER VACUUM BOTTLE INDUSTRIAL CO Ltd 8 May 1970 [8 May 1969 3 July 1969 27 Sept 1969] 22391/70 Heading B1C Domestic ice-cream mixer consists of a detachable container 2, in which the mixture can be frozen inside a refrigerator, and a stirrer consisting of a scraper portion 11 which moves over the upper surface of the frozen mixture to form flakes, and a portion 9 which is inclined so as partially to consolidate the flakes. The stirrer is axially movable, e.g. by applying pressure to a handle 31, and is rotatable by a motor 15, or by hand (Fig. 1, not shown). Alternatively the container is rotated (Fig. 4, not shown). The container is mounted in a holder 22 and has external splines, which may taper (Fig. 8, not shown) or is polygonal or oval to prevent its rotating relative to the holder. The stirrer may have four radially extending blades with upturned ends (Fig. 2, not shown), or two blades, as shown. The scraper blade may have a toothed leading edge (Figure 13, not shown) and the other blade may have a toothed trailing edge (Figs. 12 and 13, not shown) or may have an undulating profile (Fig. 11, not shown) or a spiral profile, preferably perforated (Figs. 14-16, not shown). The lower edge 11a of the scraper is lower than that of the other part.
Patent GB-1481919-A (GB)
Title: Barbituric acid derivatives
IPC: A01N43/54
Filed: 1975-05-23
Abstract: 1481919 Herbicidal application of barbituric acid derivatives NIPPON SODA CO Ltd 23 May 1975 [4 June 1974] 22455/75 Heading A5E [Also in Division C2] Herbicidal compositions comprise compounds of the formula:- in which R 1  is H, C 1 -C 4  alkyl, phenyl or phenyl substituted by halogen or halogenated methyl; R 2  is H, C 1 -C 2  alkyl or C 2 -C 3  alkenyloxy; R 3  is C 1 -C 5  alkyl or phenyl substituted by halogen; and R 4  is C 1 -C 3  alkyl, C 2-3  alkenyl or benzyl; or metal salts thereof, in admixture with urea derivatives such as 3-(3, 4-dichlorophenyl)-1-methoxy-1-methyl urea, or N-(3, 4- dichlorophenyl) N', N'-dimethylurea, triazine derivatives such as 2-chloro-4-ethylamino-6- isopropyl-s-triazine, or 2-chloro-4, 6-bis (ethylamino)-s-triazine, or amide derivatives such as N-1-naphthyl-phthamic acid.
Patent GB-442224-A (GB)
Title: An anti-gas helmet for protection against obnoxious and poisonous gases
IPC: A62B18/04
Filed: 1934-08-01
Abstract: 442,224. Gas-masks. GORDON, C. J., 10, Liberia Road, Highbury, London. Aug. 1, 1934, No. 22465. [Class 81 (ii)] A gas-mask comprises a helmet 5, Fig. 1, completely enclosing the head and having a skirt 7, enveloping the shoulders and worn under the outer clothing; the mask has an opening 10 carrying a preferably detachable air-filtering unit 11 through which air is both inhaled and exhaled. As shown, the helmet comprises a rigid head portion 1 having a curved flange 2 into which the portion 5, which is flexible, may be packed and held by a rubber or like elastic annular band stretched over the flange 2. The part 5 has eye-pieces 9 and an elastic band or tapes 8 to tighten it round the neck. At one side the mask carries a microphone 12 connected by flex with a battery B and an ear piece 13 or equivalent receiver. The battery B is preferably constructed as in Specifications 423,301, 423,353, or 423,738, [all in Group XXXVI], and is carried, together with a spare battery in a pocket 14 in the skirt 7. A container 26 for desiccating material such as calcium chloride is carried in the part 1. The filter unit 11, Fig. 7, comprises an outer casing containing filter material 16, through which air is drawn through a ring of holes 18 and ports controlled by an annular valve 20 having a spring 21, and a central channel 17 containing a spring-pressed valve 22 and serving for exhaling and transmission of speech. The inner end of channel 17 is flared as at 15 and a speaking trumpet, which may be electrically operated from the battery, may be screwed to the unit at 25. The filter materials may comprise layers of caustic soda, loose cotton wool, charcoal, and then more wool or cellulose fibre. Means for sterilizing bacteria in the air may be provided comprising a grid maintained at a dull red heat by current from the battery. Instead of the filter unit shown, separate filter units and electric speech transmitting means may be provided. In modifications the whole helmet may be of flexible material and may be carried in the crown of an ordinary hat or cap, or the helmet may be of rigid material such as light metal or papier mÔchÚ in a single piece or in two telescopically connected pieces, the lower end of the helmets having curved portions to rest on the shoulder and being provided with a skirt, with or without under-arm straps. The microphone and filter units are carried in the skirt, the filter unit having a flexible tube clipped to the inside of the helmet to hold a terminal mouthpiece opposite the mouth. The helmet is provided with a single elongated window. The Provisional Specification describes the filter unit as containing filter material in the inner chamber.
Patent GB-625637-A (GB)
Title: A new or improved back rest
IPC: A47C9/10
Filed: 1947-08-13
Abstract: 625,637. Back-rests. HOLLINGSWORTH, E. C. Aug. 13, 1947, No. 22522. [Class 52 (ii)] In a folding back-rest of the type in which a flexible sheet forms both the seat and back-rest, X-frame struts 4 fit into elongated pockets 6 in a flexible sheet 2, the pockets being divergent to take the struts when erect and the splay of the struts is limited by a flexible tie 11. The pockets are formed by stitching a separate piece of material 7 over the end of the main sheet and a separate pocket may be provided for a cushion.
Patent GB-477060-A (GB)
Title: Improvements relating to swing gearing for slubbing, intermediate and roving frames used in textile trades
IPC: D01H1/00
Filed: 1936-08-17
Abstract: 477,060. Swing gearing for roving &c. frames. TATHAM, Ltd., W., and THORNTON, H. Aug. 17, 1936, No. 22560. [Class 120 (ii)] Swing-gearing for slubbing, intermediate and roving frames comprises an endless chain t connecting a wheel on the first motion shaft A and wheels on the bobbin-driving shafts c, and extending in two loops around wheels l, m, which are respectively carried at the midpoint of a lever g coupled to the bobbin rail and anchored to the frame, and at the end of a lever n coupled by a link o with the lever g, the arrangement being such that the vertical travel of the wheels l, m is half that of the bobbin rail. Suitable carriers f, q, rare mounted on the bobbin rail and a bracket s.
Patent GB-442153-A (GB)
Title: Improvements relating to pressure lubricating devices
IPC: F16N5/02
Filed: 1934-08-02
Abstract: 442,153. Valves. PILLIN, J. B., Church Hill, Beckenham, Kent. Aug. 2, 1934, No. 22583. [Class 135] A ball valve L controls the flow of lubricant from a source of pressure supply to the discharge passages B, C, D, in the hand grip A. The valve L is urged towards the closed position by a spring L1. A plunger M has a head M2 bearing against a ratchet wheel O carried by a rotatable arbor N, and a lower end M1 of triangular cross-section bearing against the valve L. Upon depression of a hand-lever Q a pawl P pivoted thereto, rotates the wheel O and depresses the plunger M and valve O to cause a discharge of lubricant. Immediately the point of the operating tooth on the wheel O has passed over the highest part of the head M<2> the plunger M and the valve L return to the closed position under the action of the spring L1. If a continuous flow is desired the lever Q is moved a little farther so that the next tooth on the wheel O depresses the plunger M. The wheel O may be mounted eccentrically and means may be provided for rotating the arbor N so that the quantity of lubricant discharged may be varied or may be continuous.
Patent GB-484267-A (GB)
Title: Improvements in or relating to bearings
IPC: F16C25/06
Filed: 1937-08-17
Abstract: 484,267. Bearings. STIEBER, W. Aug. 17, 1937, No. 22622. [Class 12 (i)] To adjust the wear in a bearing the perimeter of the bush 7 or of a sleeve 7 around the same is conical. The bearing housing 1 has a bush 2 with a conical bore, and between the two conical surfaces is a series of rollers 4. The latter have their axes slightly inclined to the bearing axis and are retained by a spacing cage 5. To adjust for wear the sleeve 6 is rotated slightly. This causes it to move axially to put radial pressure on the rollers. 4 and hence compress the sleeve 6 and bush 7. The sleeve is locked in adjusted position by teeth 8 engaging a locking plate 9. In a modification the bearing bush surrounds the conical rings and the rollers. The sleeves 6, 7, may be split. In another modification for a ball bearing the latter is carried in a sleeve 16 with a conical perimeter, and a sleeve 2 with a conical bore is carried by the bearing housing 1. The perimeter of the sleeve 16 and/or the bore of the sleeve 2 has helical grooves 15 in which bearing balls 14 are accommodated. Rotation of the sleeve 16 causes axial movement thereof and hence radial compression of the sleeve 16, and the outer race 17 of the ball bearing. The sleeve 16 and race 17 may be integral with one another.
Patent GB-1340806-A (GB)
Title: Cathode ray display system
IPC: G09G5/22
Filed: 1972-05-15
Abstract: 1340806 Cathode-ray tube displays WESTINGHOUSE CANADA Ltd 15 May 1972 [26 May 1971] 22639/72 Heading H4T The invention relates to an information storage and display system in which the information, e.g. Alpha-Numeric symbols, is displayed on a cathode-ray tube by " bright-up " of appropriate portions of a vertical line scanned raster the information having a time sequential variation in the horizontal direction but being stored, in memories associated with the display, in the sequence of its appearance in the vertical scan. A particular advantage of this arrangement is that the memory may be updated to produce a " roll-up ", i.e. eliminating the first (horizontal) line of information from the top of the display and adding a new line at the bottom by delaying the stored information such that new information may be entered at the required location and the old information rejected. Fig. 1 shows the general appearance of the display in which the beam of the display tube is scanned, from top-to-bottom in a line raster having a five-fold interlace, the symbols being produced by bright-up of appropriate positions in a notional 7 Î 5 dot matrix to produce a complete display of eighty (vertical) columns each containing twenty symbols. Interlace control means are provided which, by adjusting the spacing between the vertical line scans allows the horizontal spacing between the symbols to be adjusted. Thus in the generation of the display the elements forming the portion of each symbol which lies on the first scan line of each group of five scan lines, are produced followed in succession by the elements lying on the second to fifth scan lines. An embodiment is described with reference, Figs. 2 and 3 (neither shown), and the organization of the memories (shift registers) is described with reference to Figs. 4 and 4a (neither shown).
Patent GB-1060986-A (GB)
Title: Pressure responsive transducer
Inventor: TALBERT DAVID GODWIN
IPC: G01L9/00
Filed: 1964-06-01
Abstract: 1,060,986. Measuring fluid-pressure electrically. ULTRA ELECTRONICS Ltd. Aug.26, 1965 [June 1, 1964], No.22642/64. Heading G1N. The ratio of the pressures of two fluids is measured by applying one fluid to a bellows 11 having a displaceable end wall 12 and a mica layer 14, and the other fluid to a thin-walled elliptical tube 15 of beryllium copper having closed ends (in the plane of the drawing. ) The area of contact of the end wall 12 and of the tube 15, and therefore the value of the capacitor formed thereby, is proportional to the ratio of the applied pressures and is indicated by a capacitance measuring circuit 19.
Patent GB-1343855-A (GB)
Title: Purification of carboxylic acids
IPC: C07C51/00
Filed: 1972-05-15
Abstract: 1343855 Carboxylic acid purification MONSANTO CO 15 May 1972 [10 Nov 1971] 22644/72 Heading C2C In a process for the purification of a monocarboxylic acid stream containing water and halogen contaminants, for example that prepared by the reaction of alcohols or olefines with carbon monoxide in the presence of a Group VIII metal and halogen catalyst, the stream is introduced to a first distillation zone, water and a major proportion of alkyl halide is removed as an overhead fraction and a major proportion of hydrogen halide is removed as the bottom stream, and a stream from the middle portion is introduced to the upper half of a second distillation zone, water is removed as the overhead fraction and a stream is removed from the mid-point below the introduction point and at or near the peak concentration of hydrogen halide present in the zone and recycled to lower portion of first distillation zone and removing the dry and purified carboxylic acid from the second distillation zone. Carboxylic acids of 2-10 C, preferably 2-4 C may be treated and the distillation zones may be the packed or plate types. Examples describe the purification of acetic and propionic acids.
Patent GB-1469279-A (GB)
Title: Winding arrangement for transformers and chokes
IPC: H01F29/02
Filed: 1974-05-21
Abstract: 1469279 Transformers and inductors TRANSFOBMATOBEN UNION AG 21 May 1974 [26 May 1973] 22693/74 Heading HIT A single coarse stage winding arranged concentrically about a master winding and a multistage. fine stage winding comprises at least three current paths, e.g. 1, 2, 3, 4, connected in series and arranged spatially parallel in a common winding cylinder, each path consisting of at least two conductors connected in parallel by bridges 5, 6, 7, the conductors of each both spatially flanking or being flanked by the conductors of the electrically following path. A fine stage winding, Fig. 2, comprises eight stages 11 to 18 each of two conductors connected in parallel by bridges 19 and 20 which are provided with terminals 21-29 for interconnection with a stage selector switch. More than two conductors per path or fine stage may be used and when an odd number may be divided into two groups with a different number of conductors in each and arranged so that larger conductor groups flank, or are flanked by, smaller conductor groups. The series electrical connections of path to path or of fine stage to fine stage may be effected outside the winding arrangement by means of terminals.