baber/WOPTO huggingface dataset:
Patent GB-957600-A (GB)
Title: Rotary spherical fluid control valves
Inventor: BREDTSCHNEIDER KURT BRUNO
IPC: F16K5/06
Filed: 1962-12-11
Abstract: 957,600. Valves. CRANE CO. Dec. 11, 1962, No. 46735/62. Heading F2V. The body 1 of a rotary spherical valve has annular shoulders 12, 13 and 14, 15 which form steps to house the sealing rings 16, 17 of backing elements 18, 19 that each embody a tapered surface 23, 24, respectively, which enable the elements to rock. Sealing rings 34, 35 are provided on the inner surfaces of the elements 18, 19 and against which abut the seats 41, 42 for the closure member 46; the seats and closure member are inserted together through the body opening 43, the elements 18, 19 being thereby forced apart to compress the rings 16, 17, the seats being carried by cradle-like surfaces in the body. The seats, which are formed with chamfered surfaces 40 to facilitate their movement across the faces of the backing elements, are also provided with seals 44, 45 for the closure member 46. The opening 43 is closed by a bonnet 47 that is secured by a threaded and castellated retainer 53. The operating handle 69 is shrouded around the valve stem 56 which is sealed and journalled in the bonnet; stops 71 define the open and closed positions of the valve. In various modifications, the bonnet may be bolted in place and provided with strengthening ribs 95. The backing elements may be arcuately ribbed where they engage the seats as well as loaded on to the latter by coil springs, disc springs or 0-rings.
Patent GB-1220132-A (GB)
Title: Improvements in or relating to refrigeration systems
IPC: F25B1/047
Filed: 1968-01-17
Abstract: 1,220,132. Refrigerating. DUNHAM-BUSH Inc. 17 Jan., 1968 [27 Jan., 1967], No. 46998/70. Heading F4H. The subject-matter is identical with parent Specification 1,220,131, but the claims differ.
Patent GB-1140145-A (GB)
Title: Manufacture of organic isocyanates
Inventor: CLIFFORD BARBARA HELEN
IPC: C07C263/10
Filed: 1966-10-21
Abstract: 1,140,145. Isocyanates. IMPERIAL CHEMICAL INDUSTRIES Ltd. 5 Oct., 1967 [21 Oct., 1966], No. 47164/66. Addition to 1,067,316. Heading C2C. Organic isocyanates are made by a process in which an organic nitro compound is reduced to a primary amine, the catalyst (if used) is separated by filtration, the water formed in the reduction is separated by distillation and the amine is then phosgenated, the entire process being effected in an inert liquid reaction medium consisting of an N,N-disubstituted carbamic ester, a number of which are specified. Products stated to be obtainable by the process include phenyl isocyanate, benzyl isocyanate, octyl isocyanate, cyclohexyl isocyanate, xylylene diisocyanates, diphenylmethane-4,4<SP>1</SP>-diisocyanate, m-phenylene diisocyanate, naphthylene - 1,4 - diisocyanate and 1,3,5 - benzene triisocyanate. An example is given.
Patent GB-1312579-A (GB)
Title: Process and apparatus for texturising and simultaneously treating
IPC: D02G1/12
Filed: 1971-10-13
Abstract: 1312579 Texturising and treating yarns; apparatus therefor RHONE - POULENC - TEXTILE 13 Oct 1971 [14 Oct 1970 26 July 1971] 47668/71 Headings D1F and D1L In a process for texturising and simultaneously treating a thermoplastic, e.g. nylon, yarn with fluid(s), the yarn is fed into a confined space and compressively crimped and set therein by a stream of hot pressure fluid, e.g. saturated steam, a part of which further advances the yarn and another part of which escapes from the space. At least one solution, emulsion or suspension in liquid of a finishing agent, e.g. antistatic dye inhibitor, softener, flame proofing agent, ultra violet absorber, or filters such as metal powders, and/or a dyestuff is/are introduced into the stack of yarn. On leaving the space, the stack is continuously passed through at least one expansion zone and at least one zone wherein at least one fluid, e.g. saturated steam, under pressure is injected. The yarn is such as obtained by spinning or extrusion of polymers, copolymers, grafted polymers or mixtures thereof or by spinning and simultaneous extrusion of at least two of these products arranged concentrically, side-by-side or dispersed in one another so as to yield heterogenious yarns the properties, e.g. differential shrinkage and/or dye affinity, of which are a function of those of the constituents. As shown, yarn 1 is introduced into a channel 2 of a nozzle 3 into which fluid is passed through a tube 4 to forward the yarn into a crimping chamber 5 having apertures 6 through which fluid escapes to an enclosure 7 maintained under a set pressure by means of a controller 8. The yarn forms a stack 9 which is subjected to the action of two dyestuffs solutions fed from a compartmented reservoir 10 through pipes 13 and 14. The chamber 5 extends through an expansion enclosure 15 having a regulating device 16 and whence fluid escapes through orifices 17; through an enclosure 18 having a regulating device 19 and from which fluid supplied through pipe 20 passes through orifices 21 and penetrates stack 9; through another expansion enclosure 22 (similar to enclosure 15) and the issuing stack is guided by rollers 25, 26, or a tube equipped with fluid inlet orifices, Fig. 2 (not shown).
Patent GB-1462518-A (GB)
Title: Restriction of fields of radiation
IPC: G21K1/04
Filed: 1974-11-05
Abstract: 1462518 Radiation absorbing materials R FLOCEE 5 Nov 1974 47826/74 Heading G6R [Also in Division H5] A radiation absorbing apertured plate for use in a radiation therapy unit (see Division H5) is made from a heavy metal powder, e.g. tungsten or lead, and 1-10% by weight of a pressuresensitive non-curable binding agent.
Patent GB-1236323-A (GB)
Title: Motor vehicle differential assembly
IPC: B60K17/16
Filed: 1969-09-30
Abstract: 1,236,323. Differential gearing. FORD MOTOR CO. Ltd. 30 Sept., 1969 [29 Nov., 1968], No. 47934/69. Heading B7H. [Also in Division F2] A motor-vehicle bevel gear differential comprises side-wheels 122, 124, freely journalled on an input shaft 62, meshing bevel planets 130, 132 freely journalled and retained by a ring 138 on cross-pins 134, 136 fast with the input shaft 62,the side wheels 122, 124 having extensions 128, 126 splined at90, 70 to driving bevel pinion, 81, 70 coaxially arranged on the shaft 62 and journalled at 84, 86 and 74, 72 in a differential casing 20, the input shaft axis being slightly inclined from a right-angled relationship relative the usual transverse half-shafts (not shown), whereby the driving pinions 81, 70 respectively engage half shaft output ring gears 106, 94 at one point only on diagonally opposite sides, the arrangement permitting the half shaft axles to be inclined downwardly from the wheels 10, 12 to lower the differential gear assembly and reduce road clearance between the floor of the vehicle body and the road surface for low silhouette body styling. Constant velocity ratio joints (50) (Fig. 4, not shown) are fitted between the outer ends of the half shafts and the wheel hubs 34, 36.
Patent GB-1092630-A (GB)
Title: Purification of pyrrolidone-(2)
Inventor: DOERFEL HELMUT
IPC: C08G69/24
Filed: 1964-11-27
Abstract: Polypyrrolidone is obtained from technical grade pyrrolidone (2) containing for example 0.2-0.4% by weight of impurities, e.g. 0.02% butyrolactone, 0.07% water, some g -pyrrolidylbutyramide and further impurities, by first recrystallizing from an aliphatic alcohol or ketone (see Division C2).  The pyrrolidone is polymerized in cyclohexane in the presence of adipoyldipyrrolidone.ALSO:Pyrrolidone-(2) is purified by recrystallization at -70 DEG  to +20 DEG  C. from an aliphatic alcohol or ketone or mixtures thereof which has a boiling point lower than the boiling point of pyrrolidone-(2). The solvent may be methanol, ethanol, isopropanol, butanol, isobutanol, acetone, methyl ethyl ketone, or diisopropyl ketone and is used in an amount of 1-50%, preferably 5-25%, by weight.  The pyrrolidone is dissolved in the solvent at 25-30 DEG  C., solid impurities are filtered, and the solution cooled preferably to -30 DEG  to +15 DEG  C.
Patent GB-1091258-A (GB)
Title: Bacteriological sampling set
IPC: C12M1/30
Filed: 1966-10-27
Abstract: A bacteriological sampling set includes a sampling stick 8 provided with a pad of cotton wool 9 and a substrate tube 4 held at the lower end by a resilient insert 3 and at the shoulder by an annulus 5 of which the three fins are secured between a projection of the plastic enclosure 1 and the lower edge of the threaded cover 2.  In use the cover 2 is unscrewed, the substrate tube 4 is broken, the pad of cotton wool 9 on the stick 8 is brought into contact with the organ from which a secretion sample is to be taken, and then this portion of the stick is inserted into the substrate in the substrate tube 4 and the cover 2 is re-fitted. The sampling stick may be held at the neck of the substrate tube by a hollow plastic stopper 11 having <PICT:1091258/C6-C7/1> three resilient annular flanges 14, Figs.4 and 5, (not shown) of which the uppermost has an outer diameter greater than the inner diameter of the substrate tube neck.  When the stopper has been fitted on the substrate tube, the other two flanges are held bent up in the neck Fig.2 (not shown).
Patent GB-1537050-A (GB)
Title: Controller units for central heating systems
IPC: F24D19/10
Filed: 1976-11-24
Abstract: 1537050 Control of central heating ANDREWS-WEATHERFOIL Ltd and R W PUZYNA 24 Nov 1976 [24 Nov 1975] 48290/75 Heading G3N  Switches 29, 30 and 33, 34 for operating a pump and a burner in a central heating system are operated (e.g. by relay coils 27, 32) in dependence on the setting of time-dependent switches 15-18 and temperature-dependent switches 22-25. In particular, switches 15-18 may be closed at 1 hour intervals from 5 am each day, switches 22 and 23 at external temperature of 0 and 5C, and switches 24 and 25 at internal temperatures of 5 and 10C, the general object being to attain appropriate internal temperature conditions by a given time. Further manually-operated switches 38, 39 and time-operated switches 45, 46 provide for extension of a day-time mode of operation into the evening and for a frost protection mode at night.
Patent GB-1055879-A (GB)
Title: Preparation of carbohydrazide
Inventor: ARGYLE CHRISTOPHER STANLEY
IPC: C07C281/06
Filed: 1962-12-22
Abstract: Carbohydrazide is prepared by reacting hydrazine with cyanuric acid, preferably using elevated temperatures.  The hydrazine is preferably employed in molecular excess and may also be used as an aqueous solution.
Patent GB-1195426-A (GB)
Title: Improvements in Spring Applied Brakes
IPC: B60T17/08
Filed: 1967-10-26
Abstract: 1,195,426. Spring applied brakes. SOC. ANON. DE VEHICULES INDUSTRIELS ET D'EQUIPEMENTS MECANIQUES SAVIEM. 26 Oct., 1967 (8 Nov., 1966], No. 48817/67. Headings F2E and F2F. A brake of the type in which a piston 2 in a cylinder 1 is urged by a spring 12 to the brake applying position, and by fluid presusre to the release position is characterized in that the driver's valve 13 is mounted adjacent the cylinder 1 and includes a non-return valve 25. The non-return valve 25 ensures that a break in the feed pipe 14 does not apply the brake. Actuation of the driver's valve 13 is by a cable 39, the length of pull necessary being indicative of the travel of the brake actuation lever 5.
Patent GB-1046450-A (GB)
Title: Flexible tower silo
IPC: A01F25/16
Filed: 1962-12-28
Abstract: 1,046,450. Silos. A. MARSHALL. Dec. 13, 1963 [Dec. 28, 1962], No. 48828/62. Heading A1F. A tower silo comprises a framework of inclined struts 10 within which is located a silage container 30 of flexible material having its lower edge bounded by a hoop 36 which is raised from the ground by means of ropes 14 to expose the silage within the container. The container 30 is formed as a frustum of a cone and comprises a sheet of plastics material held between upper and lower hoops 36 and kept taut by means suspended from a bridge structure 14 extending across the upper end of the framework. A cover 54 closes the upper end of the container and is provided with means allowing the escape of gases generated within the container but preventing the entry of air, such means comprising a length of flexible tube connected at one end to the cover and normally in a collapsed condition. A fan or blower 66 projects silage material through tube 68 and jointed nozzle 70 into the container. The silo is provided with a concrete base 26 provided with a channel 40 to receive the lower hoop 36.
Patent GB-1285106-A (GB)
Title: Ignition timing change-over device
IPC: F02P7/063
Filed: 1970-10-15
Abstract: 1285106 Tuning ignition NISSAN MOTOR CO Ltd 15 Oct 1970 [22 Oct 1969] 48989/70 Heading F1B An ignition system for an internal-combustion engine comprises an ignition timing change-over device including first and second normally closed relay switched 29, 30 connected in series with each other between a retarding breaker contact 22 and the primary side 26 of an ignition coil 12 and each having a respective solenoid coil 31, 32, the solenoid coil 31 of the first named relay switch being connected to the D.C. voltage source 10 via a starting switch 33 for being energized to open the first mentioned relay switch during the starting operation of the engine. A thermostatically controlled switch 35 is connected between the solenoid coil 32 of the second mentioned relay switch and the voltage source and a bi-metal member 41 is adapted for sensing the engine temperature and for opening the thermostatically controlled switch to de-energize the solenoid coil of the secondmentioned relay switch whereby an ignition advance is effected during the starting and warm up operation of the engine.
Patent GB-1362501-A (GB)
Title: Convertible folding table-carrel unit
IPC: A47B85/06
Filed: 1972-10-26
Abstract: 1362501 Convertible table carrel SICO Inc and K H WILSON 26 Oct 1972 [28 June 1972] 49441/72 Heading A4H A convertible table-carrel comprises a table top 10 having two sections 10a, 10b, each section having pivotally secured thereto a pair of side walls 22, 23 and a back wall 24 having a peripheral flange 24a, the side walls 22, 23 being moveable between storage positions folded downwardly against the top section 10a or 10b and vertical carrel-forming positions, the back wall 24 being moveable between an open vertical carrel-forming position in which it extends partly below the top section 10a or 10b and a closed table-forming position in which it overlies the folded side walls 22, 23, the vertical side walls 22, 23 being prevented from swinging outwardly by engaging end portions of the flange 24a, and the side walls 22, 23 being securely held against the flange portions by a shelf 27 extending horizontally forwardly from the open back wall 24 and engaging stops 22a, 23a on the side walls. The shelf 27 can be pivoted on the back wall 24 to a storage position lying against the under surface of the back wall 24 and is retained in this position by a spring-loaded latch 28, 29. Top sections 10a, 10b are mounted on frame sections 11a, 11b connected by hinges (12), 13 so that the top sections 10a, 10b can be folded from the coplanar position shown to a vertical storage position so as to provide a room divider. Telescopic leg members 14, 15 are pivotally connected to the frame sections 11a, 11b, and the leg members 14, 15 are retained vertical during folding of the top sections 10a, 10b by link members 18, 19 pivoted to the leg members and the opposite top section. The top 10 is locked in the horizontal position by a U-shaped rod 20, one leg of which is pivoted in aligned openings in the hinges (12), 13 and the other leg of which releasably engages between a pair of ears (13a), 13b on the hinge 13.
Patent GB-1124508-A (GB)
Title: Internal combustion engines
Inventor: AUSTEN ALAN EWART WALTER
IPC: F02F7/00
Filed: 1964-12-08
Abstract: 1,124,508. Crank-cases; cylinder blocks. C.A.V. Ltd. Dec.1, 1965 [Dec. 8, 1964], No.49965/64. Heading F1B. In an I. C. engine in which the crank-case and the part of the engine in which the cylinders are defined include two end walls 10, which support crank-shaft bearings 10a, and two side walls (11) Fig. 2 (not shown), inter-connecting and formed integrally with the end walls, no one wall varies in thickness by more than 1À3:1, the difference in thickness between any two walls is not more than 1À5:1 and the walls are such that the amplitude of vibration at the middle of each wall is not more than three times the amplitude of a vibration at the edge of the same wall, which latter vibration induces the former. A transverse wall 16, intermediate the two end walls 10, may be provided. Recesses to accommodate cylinder liners 14 and to form coolant chambers result in a remaining wall thickness which lies within the 1À3:1 limiting ratio. A mounting boss 17, e.g. for a fuel pump, may be provided.
Patent GB-1324384-A (GB)
Title: Method of treating continuous ferrite-pearlite carbon steel members
IPC: C21D8/06
Filed: 1970-10-21
Abstract: 1324384 Working at specified temperatures; making bar, strip and wire BEKAERT SA NV 21 Oct 1970 [21 Oct 1969] 50027/70 Headings B3A and B3V A ferrite-pearlite carbon steel member for reinforcing concrete is formed by cold working such a continuous steel member and quickly thereafter warm drawing the steel whilst it is subjected to axial tension and a backpull such that the finishing temperature is 350-500‹C. The steel in bar, strip or wire form is first cold worked by drawing, rolling, stretching or straightening and then warm worked within 10 seconds by drawing. The backpull may be produced by a preceding drawing die or by a drum over which a few loops of the member have been passed, the axial tension applying a stress of from 15% of the tensile strength to the elastic limit of the steel. In an example, a 0À76%C steel wire is cold drawn through a series of dies and heated by an electric current, induction oven or heating bath before passing through the final die which it leaves at a finishing temperature of 400‹C.
Patent GB-1235518-A (GB)
Title: Separation of bromine from gaseous mixtures containing oxides of nitrogen
IPC: C01B7/09
Filed: 1968-10-23
Abstract: 1,235,518. Bromine; nitric acid. BADISCHE ANILIN- & SODA-FABRIK A.G. 23 Oct., 1968 [24 Oct., 1967], No. 50346/68. Heading C1A. Bromine is separated from gaseous mixtures containing bromine and oxides of nitrogen (the nitrogen being in a lower valency state than five) with or without nitrosyl bromide, by adding at least such an amount of oxygen to the mixtures as is necessary for the conversion of the nitrogen of the oxides and any nitrosyl bromide to the pentavalent state, and these mixtures are then treated with water or aqueous nitric acid. Preferably the process is carried out at atmospheric pressure or up to 5 atmospheres gauge. Temperatures are used which are above the dew point of bromine but below the boiling point of the absorption liquid e.g. 65-70‹ C. at 1 atmosphere, 130-135‹ C. at 5 atmospheres. The contacting with water (or aqueous acid) may take place in a distillation type column to which the gases mixed with oxygen are admitted at the bottom and the liquid at the top. Bromine is removed at the top and nitric acid (or more concentrated nitric acid), from which bromine may be removed by boiling, is removed from the bottom of the column.
Patent GB-1198449-A (GB)
Title: The Mounting of an Assembly of Electrical Circuit Components
Inventor: WELCH BRIAN RICHARD
IPC: H05K1/18
Filed: 1966-11-10
Abstract: 1,198,449. Circuit assemblies. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 1 Aug., 1967 [10 Nov., 1966], No. 50464/66. Heading H1R. In a circuit assembly the components and wiring are mounted in slots in the insulating base member in such a manner as to be readily removable. An R.C. filter network, Fig. 1 (not shown), comprises two resistors and two capacitors, each component being located in a separate slot 3, 4, 5 &c. formed in one face of a rectangular block of foamed plastics material and the connections between the components are located in smaller slots interconnecting slots 3, 4, 5. Slot 3 is tapered towards the base so that as capacitor C1 is pushed into the slot the base is deformed and retains the capacitor in, the slot. Resistor R1 is maintained in slot 5 by a small quantity of silicone rubber or wax 9 including a hardener and inert filler. Alternatively the whole slot may be filled with silicone rubber or wax, 10, together with the slots carrying the connecting wires. The silicone rubber may be easily peeled or cut away.
Patent GB-1491443-A (GB)
Title: Telecommunication through the ground for control of material in pipe networks
IPC: G01F15/06
Filed: 1973-10-31
Abstract: 1491443 Valves HAWKER SIDDELEY DYNAMICS ENG Ltd 28 Oct 1974 [31 Oct 1973] 50626/73 Heading F2V [Also in Divisions H4 and G3] In a system for transmitting electrical signals by leakage through the ground to operate a regulator 12 to control the fluid pressure in a pipe (Division H4) the regulator is provided with a motor 28 driving an operating bar 29 through rack and pinion drive 31a, 31b. The position of the bar is sensed by a linear differential transformer 41 to provide a feedback signal to control the motor. The regulator includes a gas valve 25 in the pipe 5 with its stem connected to a diaphragm 42 loaded by a spring 30 attached to the bar 29. A return compression spring 30, whose force exceeds that of spring 30, tends to move the bar 29 towards stop 33 where maximum gas pressure is achieved. Should the transmission fail the bar is set at this safe condition.
Patent GB-1168478-A (GB)
Title: Forming apparatus for transversely curving metal ribbons
Inventor: MCGEAN THOMAS JAMES
IPC: B21D5/08
Filed: 1966-11-11
Abstract: 1,168,478. Skelping. WESTERN ELECTRIC CO. Inc. 11 Nov., 1966 [12 Nov., 1965], No. 50644/66. Heading B3E. A forming apparatus for imparting a transverse curvature to a longitudinally moving corrugated strip by passing it through a plurality of stages each comprising a pair of forming rolls, the rolls forming each pair being freely rotatable and having curved peripheral forming surfaces, is characterized in that the average radius of curvature imparted to the ribbon by the first pair of rolls is substantially equal to the product of the number of stages and the desired final radius and the average radius of curvature imparted by each succeeding stage is substantially inversely proportional to the number of the stage, the final stage imparting the curvature having the desired final radius. Thus, for example, with five stages the profile radius of each stage is respectively 5, 5/2, 5/3, 5/4, and 1 times the desired radius of the tube. A transversely corrugated strip 12 of copper bonded to tin-plated steel is given a transverse curvature by passage between pairs of rolls 38, 40 and 44, 46. A conductor 16 carrying spacers is fed down a tube 20 into the thus-formed trough. Pairs of rolls 52, 54, 60, 62 and 64, 66 then bend the strip 12 up into tubular form about the conductor 16. The rolls are adjustable and have ridges formed thereon against which the edge of the strip 12 abut. The profiles of the rolls 44, 46 may have smaller radii of curvature at the edges that at the centre. The strip thus formed into tube form 26 may then pass beneath a vertical wheel 136, Fig. 10, having a knife edge 140 engaging the edges of the strip to position the seam. The edges are then overlapped by rolls 76, 78 and the tube sized by rolls 76, 78, 80, 82 and 88, 90 before soldering the seam.