baber/WOPTO huggingface dataset:
Patent GB-557164-A (GB)
Abstract: 557,164. Melamine. BRITISH INDUSTRIAL PLASTICS, Ltd. (American Cyanamid Co.). April 22, 1942, No. 5396. [Class 2 (iii)] Melamine, prepared by reacting cyanamide or dicyanamide with anhydrous ammonia is not permitted to form a solid cake before it is washed free from basic impurities. It is then suitable for the manufacture of resins and clear haze-free melamine-formaldehyde lacquers. The contents of the reaction vessel may be discharged directly into water or into a spray drying chamber and subsequently washed. In a process described with'reference to a flowsheet, melamine prepared from dicyandiamide and ammonia in the presence of anhydrous methanol is discharged into a tub containing sufficient water to dissolve the ammonia present. The resulting slurry is filtered, the melamine washed with water and the filtrate worked up for the recovery of the ammonia, methanol, dicyandiamide, guanidine, guanylurea and melamine. Detailed examples describe similar processes and also the preparation of butylated lacquers from the purified products and from impure products containing small amounts of guanylurea carbonate and guanidine carbonate. Specification 554,262 is referred to.
Patent GB-1427003-A (GB)
Title: Compactor
IPC: B30B9/30
Filed: 1971-12-01
Abstract: 1427003 Compressing scrap G SERCOMBE 27 Feb 1973 [1 Dec 1971 13 March 1972] 55771/71 and 11660/72 Heading B3H [Also in Division B8] A compactor comprises a pressure platen 26 to exert downward pressure on material 12 to be compacted in a removable container, e.g. a skip 10, the platen being movable between a pressing position and a retracted position vertically higher than and horizontally removed from the pressing position, a support 22 pivoted at 21, as ground-engaging base having projections 30 to prevent horizontal movement of the container during the compacting, and power operated means for moving the platen between the two positions, the movement being substantially vertical throughout its extent within the container. The support 22 may be pivoted on a pair of mounting members 20, the pivotal movement being effected by an hydraulic ram 18. In another arrangement, Fig. 2 (not shown), the ram is mounted beneath a base-plate 14. In both arrangements the ram may be replaced by a motor-driven screw device, a winch device, a motor driven gear train or by electromagnetic means. The skip 10 may be on a movable conveyer, a slide, or a roller conveyer.
Patent GB-1163938-A (GB)
Title: Freezing Condition Control
Inventor: HARKER CHARLES BARTELT
IPC: A23G9/22
Filed: 1966-12-14
Abstract: 1,163,938. Freezing confections. BEATRICE FOODS CO. 14 Dec., 1966, No. 55931/66. Heading F4H. Apparatus for making semi-frozen confections comprises a freezing cylinder 12 including a rotating beater 14 and a viscosity sensing device which comprises an independently rotatable member 16 whose tendency to rotate with the slush in the chamber 12 is restrained by a spring (18), Figs. 3 and 4 (not shown), acting on an arm 42 of a shaft 34 of the device. Rotation of the shaft against the spring beyond a given point causes the arm 42 to operate a switch 20 to de-energize a refrigeration apparatus associated with the chamber. As illustrated, the viscosity sensing device comprises U-shaped rods 40 attached to the shaft 34, one end of the latter being journalled at 32 in the beater. Wall scrapers 24 rotate with the beater. In a modification, Fig. 5 (not shown), the sensing device comprises a number of discs (101) mounted on a shaft. In another embodiment, Fig. 6 (not shown), the sensing device comprises a helically twisted strip of material.
Patent GB-1369859-A (GB)
Title: Bearing-and-housing assemblies
IPC: F16C33/76
Filed: 1971-12-02
Abstract: 1369859 Bearings HITACHI Ltd 2 Dec 1971 [2 Dec 1970] 55980/71 Heading F2A A bearing and housing assembly has a bearing cover 20 located on one side of the bearing in which is a chamber 40 to which spent grease may be forced by the introduction of fresh grease into the bearing, the assembly being such that it may be arranged so that some of the grease in the chamber may flow back into the bearing. The cover has an annular recess 34 which surrounds a shaft 10 supported by the bearing, and the chamber opens from the recess. The assembly is arranged so that a lower surface 42 of the chamber extends, in a plane perpendicular to the shaft, substantially tangentially and slightly upwardly from the lower region of the outermost circumferential surface of the recess. The cover may be removable from the assembly so that the spent grease can be removed, or alternatively an opening may be formed in the housing through which grease can be extracted. The other side of the bearing is also provided with a cover 18 which has an annular recess, to which grease is supplied under pressure via a duct 36. The covers may also have annular air chambers 22 which are connected so that air may flow around the bearing, rather than through it, to reduce contamination of the grease.
Patent GB-1188398-A (GB)
Title: Improvements relating to Universal Joints
Inventor: SCHOFIELD GEOFFREY
IPC: F16D3/40
Filed: 1967-12-12
Abstract: 1,188,398. Universal joints. QUINTON HAZELL Ltd. 2 Dec., 1968 [12, Dec., 1967], No. 56357/67. Heading F2U  A sleeve, intended for, a universal joint, is made, of a hard material and has a, cylindrical. bore 58, Fig. 1, for mounting on a spider arm 48 and a circumferential surface comprising an annular groove 66 Between the ends of a frustoconical formation whereby the bridge 68 of a U-bolt is received in the annular groove to clamp the sleeve in a complementary seat 30 in a yoke joint. The drive is transmitted through a spider 38, having lubricant passages 86 and arms having cylindrical portions 48 which form the inner race rings for needleroller bearing units 50. The latter have outer race rings 55 which engage shoulders 60 in the sleeves 42. A sealing ring 62 prevents lubricant loss. The outer race rings 55 or the needle roller may be omitted so that the cylindrical portions or the needle rollers can engage the sleeve bores either directly or via a plain bush. The end wall 56 may be separated from the cylindrical wall 55 or omitted entirely and the outer end of the sleeve closed By a wall (90), Fig. 3 (not shown). In a modification an end wall 56 can abut a circlip (92), Fig. 4 (not shown,) in the sleeve bore. In further modifications the sleeves are split longitudinally and have either an external longitudinal rib which locates the half-portion in its yoke or have complementary ribs and grooves, flanges and recesses or spigots and sockets formed in identical half-portions. The sleeves may be of steel or of a sintered material which includes iron, copper or carbon or of acetal resin.
Patent GB-1378490-A (GB)
Title: Space heating units and installations
IPC: F24F13/072
Filed: 1971-11-22
Abstract: 1378490 Space heating units NATIONAL RESEARCH DEVELOPMENT CORP 22 Nov 1971 [27 Nov 1970] 56422/70 Heading F4V A space heating installation comprises an air distribution unit having adjacent the floor of the space to be heated a single outlet slot free from any substantial obstruction and from which heated air is expelled to form a carpet of air which covers substantially the whole floor area. In the form shown, the slot 14 extends across one wall 8 of the space and the depth of the slot is 6À5 mm. A corrugated baffle (50, Fig. 5) may be provided in the slot 14. In another embodiment, the unit includes a free-standing body having an air inlet in its top surface, containing a heater and a fan, and defining an annular air outlet slot by itself or between the body and the floor. In other embodiments, the unit is located in the corner of or against one wall of the space and includes a slot which extends through 90 degrees or 180 degrees respectively. An air outlet 22 is provided.
Patent GB-1410473-A (GB)
Title: Delivery apparatus for rodlike articles of the tobacco-processing  industry
IPC: A24C5/32
Filed: 1971-12-10
Abstract: 1410473 Conveyers HAUNI-WERKE KORBER & CO KG 2 Nov 1972 [10 Dec 1971] 57537/71 Heading B8A Cigarette filter rods 103 from a pneumatic pipe 122 are slowed by opposing rollers 141, 142 before passing into a channel 121 which guides the rods between opposing rollers 128, 129 driven at higher speed than the rollers 141, 142. The rods are then delivered to a magazine 102 by a guide 104 and opposing rollers 106, 107 the rods being moved transversely to their longitudinal axes and upwardly via a duct 119, into the magazine. The channel 121 may cover 149 and may have an opening along its base for the release of dust. It is possible for the rods to be fed from an upwardly-directed pneumatic pipe, the rollers 141, 142 then feeding a channel inverted from the position shown in Fig. 2.
Patent GB-1153920-A (GB)
Title: Reforming Aromatization Process With Sulfided Catalyst
Inventor: CARTER JAMES LESLIE
IPC: C10G35/085
Filed: 1967-12-19
Abstract: 1,153,920. Reforming naphtha. ESSO RESEARCH & ENG. CO. 19 Dec., 1967 [3 Jan., 1967], No. 57624/67. Heading C5E. In a process for catalytically reforming a hydrocarbon feed stream boiling in the motor fuel range and comprising paraffins, naphthenes and aromatics, the hydrocarbon is contacted with a reforming catalyst which comprises a refractory support and a metal component of the platinum group in a reforming zone at reforming conditions, the level of naphthenes is reduced to a maximum of 10% by weight of the feed, and the feed is then contacted with a similar catalyst in sulphided form. There may be three stages, the first two containing unsulphided and the third sulphided catalyst.
Patent GB-1208313-A (GB)
Title: Closure devices for liquid containers
Inventor: JOHNSTON MACK S
IPC: F16K1/30
Filed: 1967-12-19
Abstract: 1,208,313. Multi-channel pipe joints. JOHNSTON ENTERPRISES Inc. 19 Dec., 1967 [25 Jan., 1967], No. 57627/67. Heading F2G. A closure device for a keg (20), Fig. 1 (not shown), comprises an outer sleeve 127, Fig. 2, secured in an opening, a gas passage and a liquid passage containing a normally closed valve (214), Fig. 4 (not shown), in the sleeve, a transition element (264), Fig. 3 (not shown), having liquid and gas apertures therethrough communicating with the liquid and gas passages, the outer end of the liquid aperture (258) having its centre aligned with the longitudinal axis of the sleeve and its inner end offset from the axis and a non-return valve 286 in the gas passage. When collar 118 is tightened on to ring 126 a probe on the adapter A (not shown) unseats the valve against spring 216. Liquid is free to move outwardly through siphon tube 228, tube 274, the transmission element, spring 216 and the open valve to a dispenser (40). At the same time air or gas from a tank 30 passes via coupling 144, space 212, slot 280 to the non- return valve 286. In another embodiment the transition element (290), Fig. 5 (not shown), is made from a synthetic plastic, e.g. a polycarbonate. In modifications, ring 192, insert 208, insert 218, tube 274 and tube 228 may be moulded in a polycarbonate and valve 286 may be of gum or silicone rubber.
Patent GB-1390049-A (GB)
Title: Ball valve with resilient seal
IPC: E21B34/00
Filed: 1972-12-14
Abstract: 1390049 Valves BAKER OIL TOOLS Inc 14 Dec 1972 [22 March 1972] 57737/72 Heading F2V [Also in Division E1] A ball valve assembly V, Fig. 1, for use in offshore wells, comprises an elongated outer casing containing a fixed member 40, Figs. 8 and 9, supporting ported valve ball 46, and upper and lower sleeves 60, 53 sealingly cooperating with the ball. The ball has in opposite sides thereof recesses 45 engaged by fixed pins 44 extending from member 40. Upward or downward movement of the ball within the member 40 causes the ball to rotate, due to the co-operating pins 44 and recesses 45, and thereby closes or opens the flow passage through the valve. The co-operating surfaces of the pins and recesses are so arranged that initial downward movement of the ball from its closed position shown in Fig. 8, occurs without rotation of the ball so that the ball moves out of contact with resilient seal 103 before it rotates to its open position. Stop surfaces 91a, 91b on the ball co-operate with a surface on the member 40 to limit rotation of the ball. The ball is moved downwards by the sleeve 60 when piston means thereon are subjected to control pressure fluid supplied through pipe CF from a pressure source 11 mounted on floating platform P. Prior to moving the sleeve 60, the control pressure fluid causes a valve sleeve (67), Fig. 2a (not shown), to move along the sleeve 60 to an open position wherein ports in both sleeves are communicated to thereby allow well pressure below the ball to pass to the upper side of the ball and provide pressure balance. The valve sleeve (67) has longitudinally extending resilient latching fingers (74) with projections thereon which are forced out of engagement with a shoulder on sleeve 60 by camming action during opening movement of the valve sleeve. Upward closing movement of the ball occurs automatically after cessation of control pressure fluid flow, by the action of well pressure and by a helical spring (51), Figs. 2b, 2c (not shown).
Patent GB-1224177-A (GB)
Title: Improvements in or relating to skis
Inventor: CARLTON WILLIAM CHARLES
IPC: A63C5/056
Filed: 1967-12-20
Abstract: 1,224,177. Skis. CARLTON SPORTS CO. Ltd. 13 Dec., 1968 [20 Dec., 1967], No. 57759/ 67. Heading A6D. A ski has a runner comprising a shaped plastics material containing carbon fibres as a reinforcement. The runner which may be formed by compression moulding may be additionally reinforced with steel on its outside lower edge. The ski may also have linings of plastic material reinforced with carbon fibres, the runner and the foot of the bindings being formed as integral moulding. The plastics material may be a thermosetting resin such as polyester, epoxy or phenolic resin.
Patent GB-1169550-A (GB)
Title: Improvements in or relating to Foodstuffs and Pharmaceutical Compositions
Inventor: STARKE ARMIN
IPC: A23K30/00
Filed: 1966-12-23
Abstract: 1,169,550. Preserving products. A. STARKE. 23 Dec., 1966 [27 Dec., 1965], No. 57765/66. Heading A2D. [Also in Division A5] A method of preserving an organic dried food product or pharmaceutical product comprises subjecting the product in a porous, particulate or pulverulent state and under vacuum in a vacuum chamber, to the action of an enzyme deactivator in gas or vapour form whereby the enzymes in the product become deactivated and thereafter packaging the product with the deactivator taken up by it, under a protective gas, without contact with the atmosphere and after filling the vaccum chamber with the protective gas. The product may be freeze dried, vacuum dried or spray dried milk, cream or animal feeds. The enzyme deactivator may be ethyl alcohol, formaldehyde, or suphur dioxide. The protective gas may be nitrogen. The product may be contained in a gas permeable bag in the vacuum chamber.
Patent GB-1393539-A (GB)
Title: Means for indicating the state of charge of a lead-acid battery
IPC: H01M10/48
Filed: 1971-12-14
Abstract: 1393539 Measuring density JOSEPH LUCAS (BATTERIES) Ltd 13 Oct 1972 [14 Dec 1971] 57989/71 Heading G1S [Also in Division H 1] A specific-gravity indicator for use in a lead-acid battery, is formed from a butadiene-styrene rubber filled with china clay. In the embodiment a leadacid battery includes three balls of different colours of the filled rubber, each ball being of a different specific gravity. The constituents of the filled rubber are specified.
Patent GB-1495704-A (GB)
Title: Containers with metal plug lids
IPC: B65D43/04
Filed: 1973-12-14
Abstract: 1495704 Containers with lever plug lids METAL BOX Ltd 12 Dec 1974 [14 Dec 1973] 58093/73 Heading B8T A metallic container and lever plug lid utilize a circumferential line contact whereby lid pivoting during withdrawal is facilitated. The plug comprises a circular bottom 11 joined to a flange 7 by a side wall 3 that includes an outwardly convex annular portion 3B that provides the line contact and which is joined to the flange by an annular portion which is radially inward of the convex portion. In modifications the convex portion is part way up the side wall, Fig. 5, or formed as a curl 16b, Fig. 7, which is connected to flange 16c by annular portion 26. The lids of Fig. 5 may be stacked.
Patent GB-1129396-A (GB)
Title: Improvements in the production of gelatin-containing photographic layers
IPC: G03C1/30
Filed: 1966-12-29
Abstract: 1,129,396. Derivatives of urea. E. I. DU PONT DE NEMOURS & CO. 29 Dec., 1966 [30 Dec., 1965], No. 58177/66. Heading C2C. [Also in Division G2] Compounds of the formulµ wherein R and R 1  are alkyl, aralkyl or allyl groups, or are methylene groups linked together through other methylene groups to form a bridge containing 4 or 5 methylene groups, R 3  and R 4  are hydrogen atoms or are methylene groups linked together to form a bridge containing at least two methylene groups, and n is 2-6 when R 3  and R 4  are hydrogen, or 2 when R 3  and R4 are methylene groups are obtained by reacting urea or an #,#<SP>1</SP>-bis-urea, formalin and. a secondary amine R(R 1 )NH. The #,#<SP>1</SP>- bis-urea starting material may be obtained by heating urea with a diamine
Patent GB-1401766-A (GB)
Title: Casting aluminium ingots
IPC: B22D11/14
Filed: 1971-12-17
Abstract: 1401766 Continuous casting ALCAN RESEARCH & DEVELOPMENT Ltd 13 Dec 1972 [17 Dec 1971] 58876/71 Heading B3F [Also in Division F4] A number of continuous casting moulds (such as 1 with a flow control float 4 initially supported by wires 5) are fed simultaneously with molten Al or Al alloy through individual dip tubes 3 with inlets 6 in a trough 2, e.g. supplied by way of a launder 12, and, to prevent flow through a dip tube until a sufficient local level in the trough has been attained, each tube is fitted with a buoyant plug 16 of a material substantially unaffected by molten Al and with a lower specific gravity and having a head greater in width than the dip tube mouth and a stem of a diameter slightly less than that of the tube 3, the head being of such size as to provide sufficient buoyancy for the whole plug.
Patent GB-1389680-A (GB)
Title: Hydraulic testing machine
IPC: G01N3/36
Filed: 1972-12-20
Abstract: 1389680 Hydraulic testing machine CARL SCHENCK AG 20 Dec 1972 [27 Jan 1972] 58877/72 Heading G1S A known hydraulic testing machine comprises a piston and cylinder for producing a static preload, a further piston and cylinder for producing a dynamic alternating load, and pressure reservoirs connected to the pre-load cylinder above and below the piston to prevent pressure surges. When operating slowly however, by producing a slowly varying test load by means of the pre-load cylinder, the reservoirs produce an undesirable disturbing  effect. The invention seeks to overcome this disadvantage by providing accumulator bags in the reservoirs connected to other pressure reservoirs or pressure raisers in order to vary the pressure in the original reservoirs by emptying them partially or completely. In Fig.1, the pre-load pressure cylinder 1 and piston 2 are connected to reservoirs 3, 4 containing gas filled accumulator bags fed by gas bottles 5, 6 via gauges 9, 10 and valves 7, 8, and the cylinder I is also connected by a hydraulic switch valve 12 to a hydraulic assembly 11 providing additional pressure. By means of the gas bottles and the hydraulic supply 11 the pressure in cylinder 1 may be controlled by increasing or decreasing the pressure in the accumulator bags to expand or contract them and shunt the hydraulic fluid into or out of the reservoirs and the cylinder 1. The pressures in 3 and 4 may be held at different values by closing the valves 7, 8 at different times so that the desired pre-load may be applied in cylinder 1. In Fig.2 (not shown) the bag pressures are produced by a pressure raiser (14) driven by mains compressed air and fed from a bottle (5). In Fig.3 (not shown) additional reservoirs and accumulator bags in series are provided.
Patent GB-590841-A (GB)
Abstract: 590,841. Shoe racks. AIRFLOW STREAMLINES, Ltd., and WESTLEY, G. F. March 30, 1945, No. 8106. [Class 52 (iii)] In a shoe rack comprising a series of slats 7, 7' spaced apart so that shoes may be lodged between them and formed of sheet metal beat to an inverted U or equivalent cross-section, the slats extend between. and are supported by longitudinal sheet metal rails 5, 6, also of inverted U or equivalent cross-section. As shown,- the slats are arranged in tiers, and the pairs of rails 5, 6 are secured to sheet metal side members 2 secured to a base 1 mounted on castors 8. The front rail 5 of a pair is lower than the rear rail 6, so that the slats are downwardly inclined, and its upper edge is higher than the adjacent surfaces of the slats so as to provide a ledge to prevent the shoes slipping off. The slats 7<1> are wider than the slats 7 so as to facilitate the arrangement of the shoes in pairs. The base 1 is formed as a tray to receive materials.
Patent GB-1245787-A (GB)
Title: Improvements in or relating to magnetic devices
Inventor: BOBECK ANDREW HENRY
IPC: G11C11/15
Filed: 1968-12-13
Abstract: 1,245,787. Magnetic structures. WESTERN ELECTRIC CO. Inc. 13 Dec., 1968 [19 Dec., 1967], No. 59315/68. Heading H1H. A magnetic device comprises a layer of magnetic material between and having a lower coercive force than each of two regions of anisotropic magnetic material, the device being such that when the regions are magnetized in opposite directions a domain wall is formed in the layer. The anisotropic regions may be layers, and their coercivities may be the same or different. The layer may also be anisotropic, and the hard axes and easy axes of the layer and regions may be in substantial alignment. The lower coercivity layer may be of permalloy or Y-I-G, while the higher coercivity regions or layers may be of Fe-Ni-Co alloy deposited by electrodeposition, sputtering or vacuum deposition. The sandwich arrangement of the device may be extended to include fourth and fifth layers of higher and lower coercivities. In one embodiment, the device, in the form of an annulus 20,000 thick provides an inductance for a filter network circuit.
Patent GB-1436400-A (GB)
Title: Antilock braking system
IPC: B60T8/82
Filed: 1973-12-21
Abstract: 1436400 Antiskid braking systems TELDIX GmbH 21 Dec 1973 [23 Dec 1972] 59344/73 Heading F2F In an antiskid braking system a vehicle speed dependent reference value is produced, for example, from wheel speed pulse generating sensors 3, 4 connected to frequency-voltage converters 5, 6 and storage elements 7, 8, a wheel speed dependent value is produced and the two values are compared, the brake pressure being varied when the wheel speed value falls below the vehicle speed value. An operational amplifier 9 selects from the storage elements 7, 8 the output with the greater voltage and the amplifier output voltage is reduced by means of a voltage divider comprising resistances R 1 , R 2  the reduced voltage being fed to the lower inputs of difference amplifiers 10, 11. The reference voltage thus obtained is compared with the output voltages of converters 5, 6 and when the latter fall below the reference voltage outputs produced by the amplifiers 10, 11 reduce brake pressure.