baber/WOPTO huggingface dataset:
Patent GB-743259-A (GB)
Title: Improvements in or relating to locking devices
IPC: E04B1/61
Filed: 1952-12-18
Abstract: 743,259. Furniture Joints. HOOPER, G. A. H. Oct. 13, 1953 [Dec. 18, 1952], No. 32051/52. Class 52(2). [Also in Group XXV] A device for locking two parts 1a, 2a together consists of two members 1, 2 each adapted for fitting to one of the parts and having sections to engage one another intimately and so that when engaged the parts 1a, 2a are located in their desired position and slots 3, 5 through the sections which almost register transversely of the sections when the parts 1a, 2a are correctly located, and a wedge 6 for engaging in the slots, the slots and wedge being shaped so that the forcing of the wedge into the slots results in movement of the sections to draw the parts 1a 2a tightly together. The member 1 is tubular and has two diametrically opposed slots. The member 2 can be either solid in which case it has a diametrical slot or hollow in which case two diametrically opposed slots are provided. Each member has a flange 4, 4a by which it is fixed to its respective part 1a, 2a. The member 2 may alternatively have a screw thread in place of the flange. The wedge is tapered and has notches 8 one of which engages an edge of a slot to retain the wedge in place. The part 1a is suitably apertured to allow the wedge to be driven home.
Patent GB-877377-A (GB)
Title: Improvements in or relating to electric motors of the submersible type
Inventor: NICOL KENNETH MARTIN
IPC: H02K5/128
Filed: 1956-10-22
Abstract: 877,377. Pump motors. HAYWARD TYLER & CO. Ltd. Jan. 22, 1958 [Oct. 22, 1956], No. 32111/56. Class 35. In a motor-driven pump unit in which the pumped liquid has access to the motor rotor, the stator is sealed off by a diaphragm 15 passing through the air gap and is immersed in a separate cooling liquid. The liquid which is pumped by impeller 5 has access to the interior of the motor casing 7 through a heat-transfer reducing barrier 14 which fits loosely round the motor shaft 4. The liquid in the motor casing is circulated by means of an impeller 13 so that it passes vertically through journal bearings 10, 11 and thrust bearing 12, which bearings may be of the tilting pad type, and also circulates by pipes 20, 21 to an external cooler (not shown). The stator 2 is enclosed in a non-magnetic can comprising the diaphragm 15 and end covers 16, 17, and containing oil. This oil may be separately cooled after passing up through the stator slots by circulation through cooling tubes 31 by a small motor-driven pump 22a on a sealed partition disc 22 within the stator can. The tubes 31 are surrounded by a cooling jacket 32 through which cooling water is circulated. In a modification, the tubes 31 are cooled by means of a jacket through which the cooling water for the main motor is circulated. In a further modification, the outside cooler is dispensed with, and the pump 22a merely circulates the coil through tubes passing through the partition 22 and passing down through slots in the outer periphery of the stator pack. Pump 22a, Fig. 2, comprises a vertical rotor 23 mounted on integral trunnions 25, 26 and having an axial hole 29 and radial holes 30 which produce a pumping action on rotation of the rotor. The leads 39 which supply the main motor pass through slots in the stator pack 24 to form stator windings, the leads of each phase being 180 degrees apart.
Patent GB-1013215-A (GB)
Title: A method of producing foamable thermoplastic materials
IPC: C08F2/18
Filed: 1962-08-22
Abstract: A mixture of styrene and methyl methacrylate in a weight ratio of from 7:3 to 4:6 containing a polymerization initiation is prepolymerized at 70-100 DEG  C. for 0.5 to 2 hours, cooled to below 60 DEG  C. and on addition of a low boiling foaming agent, a suspension stabilizer and a further polymerization initiator in amount at least double that used in the first polymerization stage, further polymerized in suspension at 70-120 DEG  C. for 0.5 to 2 hours. The foaming agent may be added at the start of the suspension polymerization, the partly polymerized mixture being at a higher temperature than the normal boiling point of the foaming agent, but below the boiling point of the foaming agent at the pressure used, which pressure exceeds 2 atmospheres gauge. In an Example (1) to the partly polymerized copolymer benzoyl peroxide and an aqueous solution of polyvinyl alcohol were added in a pressure vessel and pentane added at 50 DEG  C. and heated for 2 hours.  Granules of polymer thus prepared may be foamed in water at 95 DEG  C. or in steam at 105 DEG C.  Other initiators may be: azo-bis-isobutyronitrile, acetylbenzoyl peroxide and tetraethyl lead.  In Example (3) a suspension of talc in water was added to the polymerizing mixture in the second stage. Specification 978,631 is referred to.
Patent GB-864672-A (GB)
Title: Production of articles or coatings by electrodeposition
Inventor: HUGHES HERBERT DENIS
IPC: C25D1/00
Filed: 1957-10-15
Abstract: 864,672. Forming shaped articles by electrodeposition. METACHEMICAL PROCESSES Ltd. Oct. 14, 1958 [Oct. 15, 1957; March 21, 1958], Nos. 32171/57 and 9093/58. Class 41. In the process of electro-forming, the mould e.g. of copper is first coated with a layer containing graphite of grain size 0.1 to 25 microns and a binder which is preferably a thermoplastic resin e.g. polyisobutylene. The coating is then smoothed and pressed to orientate the grains of graphite before electro-deposition of one or more metals electrolytically thereon. The orientation of graphite grain is stated to improve the hardness of the subsequently deposited metal which may be copper with an overcoat of heavy nickel plate and a top coat of chromium. Alternatively the resin and graphite compositions may be rolled into a film which is applied to the mould. This layer is removed from the final moulded article by stripping off or by using a solvent.
Patent GB-897657-A (GB)
Title: Improvements in or relating to solid propellant compositions
IPC: C06B45/10
Filed: 1956-10-22
Abstract: 897,657. Propellent compositions. PHILLIPS PETROLEUM CO. Oct. 22, 1956, No. 32191/56. Class 9(2). A composition adapted to be cured without the addition of elementary sulphur to form a solid propellant comprises a solid oxidant, a metal oxide, a heterocyclic nitrogen base polymer and a quaternising agent. The polymer is cured by heating and then acts as a binder for the oxidant and also serves as the fuel. The propellent compositions are more stable on ageing than compositions containing free sulphur. The polymer may be a homopolymer of a heterocyclic nitrogen base or a copolymer with a conjugate diene, with or without another vinyl compound. Suitable nitrogen bases are specified, including vinyl and ispropenyl pyridines, corresponding quinoline bases, and alkyl derivatives of these bases. A suitable conjugated diene is 1,3- butadiene, but others are specified. The other vinyl compound is, for example, an ester of acrylic or methacrylic acid, or styrene or a derivative thereof. The preferred metal oxide is litharge, zinc oxide, or magnesium oxide, but other oxides are mentioned. Quaternising agents which are specified are alkyl halides, alkylene halides, other halogen-substituted alkanes, benzoyl chloride, benzene sulphonyl chloride, benzyl chloride, benzal chloride, benzotrichloride, methyl benzene sulphonate, hexachlorocyclopentadiene, and nitro-substituted benzene compounds. Solid oxidants specified are alkali-metal and ammonium chlorates, perchlorates, and nitrates; salts of lithium, calcium, strontium, barium, magnesium, aluminium, and boron may also be used. The composition may also include oxidation catalysts, e.g. Milori blue, ammonium dichromate, or rouge. In examples, butadiene- 2-methyl-5-vinyl pyridine copolymer is used as the polymer, ammonium nitrate as the oxidant, litharge, zinc oxide or magnesium oxide as the metal oxide, and benzotrichloride, diethyl bromomalonate, or lauryl bromide as the quaternising agent. Other ingredients are carbon black, dioctyl ester of sodium sulphosuccinic acid, iron oxide, dibutyl carbitol formal, tri-(2-ethylhexyl) phosphate, Milori blue (a complex iron cyanide), and a mixture of N.N<SP>1</SP>-diphenyl-para-phenylenediamine and a diarylamine-ketone reaction product.
Patent GB-1157305-A (GB)
Title: Processing apparatus incorporating rolls
IPC: B21B29/00
Filed: 1966-07-18
Abstract: 1,157,305. Rolling. UNITED ENG. & FOUNDRY CO. 18 July, 1966 [17 Aug., 1965], No. 32208/66. Heading B3M. [Also in Divisions B5 and D2] A rolling mill or calender incorporates means for applying bending forces to a pair of rolls in order to control the effective crown of the rolls, separate cylinder assemblies being provided for either increasing or decreasing their crown. In a fourhigh rolling mill having rolls 15-18 which may all be crowned, a beam 25 extends between the windows of the two mill housings 11, 12 and is positioned between the chocks 22 of the upper backing roll 17 and mill screws 29. A central pistoncylinder assembly 34, 35 urges the beam and the chocks 22 carried by the beam upwardly against the screws. A roll bending assembly 41 at each side of the mill includes a piston 43 which acts downwardly on the beam, and a second piston 42 acting upwardly against a crosshead 45, Fig. 2. The crosshead is connected by links 46 to wings 48 on a bearing 47 carried by the end of the roll 17. The ends of the roll are thus urged upwardly by the assemblies 41, the roll pivoting about rocker plates 27 on the chocks 22. The arrangement of the beam 25, crossheads 45, and links 46 ensures that the bending forces do not pass through the mill housings. A further piston 49 acts in the opposite sense to the pistons 42, 43, thereby decreasing the effective crown of the roll 17, and hence the roll 15. A similar arrangement is provided for the lower backing roll 18, a beam 51 being located between the bases of the housings 11 and 12 and the chocks 22 of the roll 18. Filler plates 52 are interchangeable to compensate for various diameters of roll used in the mill. Balance pistons 24 and 23 act between the backing roll chocks 22 and working roll chocks 21 at each side of the mill. The pressure acting on the pairs of pistons 24, Fig. 1, as well as the effective pressure area, is maintained equal to that acting on the respective piston 49. The mill arrangement is suitable for use in calendering paper or rubber.
Patent GB-273175-A (GB)
Title: Improvements in spool or reel winding machines
IPC: B65H54/32
Filed: 1926-12-21
Abstract: 273,175. Squire, F. E., (Schzweizer, E.). Dec. 21, 1926. Winding-machines; stop-motions. - In a machine for winding spools having sloping ends and having thread-guides 4 which are given a variable traverse along rods 44 by a cam disc 50, the change in the extent of the traverse is produced by moving the thread-guide actuating member 41, 42, 43 towards or away from the axis of the cam disc 50 by means driven directly from the winding spindle, so that the variation is effected in direct accordance with the number of revolutions of the spindles 2. A two-spindle machine is shown and the members 41, 42, 43 are actuated vertically by a worm 14 on one of the spindles 2. The spindles are driven from a pulley 11 through friction discs 10, 9 and toothed gearing 7, 12, 13. Through a toothed wheel 15 the worm 14 drives a shaft 16 carrying a disc 19 having holes 17 into which the end of a lever 18 may be secured to actuate a ratchet-and-pawl 24. 25. When the lever 18 and disc 19 are not connected together the traverse of the guides 4 is constant. If however the lever 18 is connected to the disc 19, the ratchet wheel 24 is driven and its motion is transmitted through toothed wheels 26, 27 and the worm and worm-wheel 29, 30 to the spindle 31 carrying a roller 32 to which the end of a wire 35 is secured. Rotation of the spindle 31 therefore winds the wire 35 on the roller 32 and thus draws the rod 37, supported on the pivoted arms 38, downwardly whereby the arms 42 of the sleeve 41 are moved along the cam disc 50 towards its axis to decrease the traverse. The sleeves 43 are formed with arms 45 joined by a plate 56 and are connected to the guides 4 by rods 46. The holes 17 in the disc 19 are at differing radii whereby the change in the traverse may be varied. The wheels 26, 27 are also changeable. Spools having diverging slopes may be wound if the arms 42 are moved away from the shaft 6. The machine is adjusted at the commencement of winding by the spindle 31, while rollers 51 operate stop devices when the winding is completed.
Patent GB-1211806-A (GB)
Title: New derivatives of glycyrrhetinic acid
Inventor: TURNER JOHN CAMERON
IPC: C07D303/40
Filed: 1968-07-08
Abstract: 1,211,806. Glycyrrhetinic acid derivatives. BIOREX LABORATORIES Ltd. 17 June, 1969 [8 July, 1968], No. 32481/68. Heading C2C. The invention comprises compounds of formula wherein R is H or an aliphatic radical, A and B together represent an extra 2,3-bond or a 2α,3α- epoxy group, and the wavy line denotes the α- or #-configuration. The #<SP>2</SP>-compounds are prepared by dehydrating 18α- or 18#-glycyrrhetinic acid or an appropriate ester thereof, and are converted to the epoxides with an epoxidizing agent.
Patent GB-1221943-A (GB)
Title: Improvements relating to the control of electrical hoisting equipment
Inventor: AMEY MICHAEL EDWARD FREEMAN
IPC: B66C13/24
Filed: 1967-07-14
Abstract: 1,221,943. Control of D.C. motors. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 11 July, 1968 [14 July, 1967], No. 32595/67. Heading H2J. The hoisting and lowering speed ranges of a crane or the like driven by an electric motor are rendered inversely proportional to the load by control apparatus wherein at full load and at low speeds on no load the field current of the motor is maximum and all speed variation is achieved by varying armature voltage only, and at higher speeds on no load or part load variation is achieved by weakening the field. A demanded-speed reference signal s is fed from controller CT to armature voltage regulator AR which provides an armature voltage signal a and an armature current signal b, the signal a being positive for hoisting, negative for lowering and proportional to the demanded speed signal s, while signal b is postive when hoisting, negative when lowering light loads, and positive when overhauling (i.e. during regenerative lowering of a heavy load). Signal a is fed to a circuit A (detailed in Fig. 3, not shown) which provides a proportional negative output after signal a exceeds a threshold value in either direction. Signal b is fed to a circuit B (detailed in Fig. 4, not shown) which provides a proportional positive output whenever signal b departs from zero. The outputs from A and B are added and fed to circuit C (detailed in Fig. 5, not shown) which provides a positive output signal c (of limited maximum) when the input is negative but no output if the input goes positive. Signal c is fed to a field current regulator FR in opposition to a constant bias signal bs which keeps the field strength at maximum when c is zero. Circuit parameters are chosen such that when hoisting or lowering on full load signals a and b cancel each other and c is zero. At less than full load signal a predominates and causes field weakening in dependence upon armature current. Thus the speed/load characteristics are substantially identical for hoisting and lowering (Fig. 1, not shown).
Patent GB-841206-A (GB)
Title: Improvements in or relating to machines for making stirrups for use in reinforced concrete constructions
IPC: B21D11/12
Filed: 1956-10-23
Abstract: 841,206. Angular bending; shearing. SOC. DES ANCIENS ETABLISSEMENTS VIDAL, J. B. Oct. 25, 1956 [Oct. 25, 1955; Oct. 11, 1956], No. 32626/56. Class 83 (4). A machine for forming stirrups for metal reinforcements in reinforced concrete comprises a first bending means for forming an 180 degrees bend at one end of a wire blank, a second bending means spaced from the first for forming an 180 degrees bend at the middle of the wire blank and to provide a return-bent portion extending past the first bending means, the first bending means being arranged also to bend the end of said return-bent portion through 180 degrees in register with the first 180 degrees bend. Wire f is drawn intermittently from a coil through straightening rolls 3 and 4 by peripherally - grooved continuously - rotated rollers 8<SP>2</SP> co-operating with similar rollers 9<SP>2</SP>, said rollers being urged together, against springs, into driving engagement with the wire by an adjustable rotating cam 19, on a driven shaft 10, operating through a lever. When the wire f is stationary a length is severed therefrom by a shear 26 actuated through a lever 27 by a cam 17 on the cam-shaft 10. The bending is then effected by means carried in casings 47, 48 adjustable along a rod 49 and a shaft 50. The shaft 50 is oscillated by half-toothed bevel means 51, 52 on the main shaft 10. A cam 68 on the shaft 50 operating through linkage means 64, 62, 61, 60 projects heads 601, around which the wire is to be bent, through plates 571, 57<SP>2</SP>. These plates, which carry bending pins 58, 58<SP>1</SP>, are fast with hollow shafts 57 rotated by rack- and pinion means 55 driven by the shaft 50 to bend, through 180 degrees at one end and at the middle, a wire f presented thereto and placed on the heads 60<SP>1</SP> by feed members 69 moved towards the plates by cam means 73 on the shafts 57. The shaft 50 then rotates in the reverse sense and the plates 57<SP>1</SP>, 57<SP>2</SP> are rotated in a direction opposite their previous rotation. This causes a pinion 56, which has a helical slot engaged by a stud on the shaft 57, to slide axially of the shaft 57, and, through a connection 58<SP>2</SP>, to project the pin 58 further through the plate 57<SP>1</SP>. This pin thus engages the bentover arm of the wire stirrup E to form the terminal loop thereof at the other end. A hook 65 is engaged by a cam 67<SP>1</SP> on the shaft 50 at the commencement of its rotation in the original direction to withdraw the heads 60<SP>1</SP> and allow the completed stirrup E to fall away.
Patent GB-291301-A (GB)
Title: Folding table and trunk for automobiles
IPC: B60N3/00
Filed: 1927-12-03
Abstract: 291,301. Westenholz, T. F. Dec. 3, 1927. Seats combined with tables.-A folding table 4 in a motor car where the back of the driver's seat consists of a hollow receptacle closed by a lid 4 forming the table top, is further provided with a trunk 6 which is housed within the receptacle and hinged at 7, 8 so that it can be swung out for use as an auxiliary table. Space at the sides of the trunk in the receptacle behind the driver's seat may be used to hold bottles, &c. A shelf 11 may be provided above the trunk to hold drawings, umbrellas, &c. The trunk may contain two inner loose boxes to hold cutlery, clothes, &c.
Patent GB-443452-A (GB)
Title: Production of sulphur dioxide from acid sludge
IPC: C01B17/58
Filed: 1934-11-14
Abstract: <PICT:0443452/III/1> Sulphur dioxide is obtained by contacting sludge from the sulphuric acid purification of carbonaceous material (e.g. petroleum or coal tar fractions) with a stream of highly heated non-gaseous heating medium, continuously removing the sulphur dioxide evolved from the reaction zone and removing the carbonaceous residue and the heating medium.  Suitable heating media are molten metals or salts, solids such as iron or steel balls and finely divided solids such as sand.  Hot sand at about 1500 DEG  F. is fed into a revolving kiln 1 by means of a screw 2 while sludge is pumped in by a pump 4. A mixture of sand and coke is discharged at 6 while the evolved gases pass out through a gas outlet 5.  The mixture of coke and sand is transferred by a conveyer 7 and elevator 8 to a heating kiln 9 where the coke, ignited by a pilot flame 21, burns to reheat the sand for further use.  The gases pass through a baffled air condenser 12 and a cooled condenser coil 13 to a water-irrigated scrubbing tower 15 which removes the hydrocarbons present.  The scrubbed gas passes to an absorption tower 23 which absorbs the sulphur dioxide in water. The resulting sulphur dioxide solution is contacted with air in a stripping tower 28, the resulting sulphur dioxide-air mixture being dried by contact with strong sulphuric acid in a drier 34.  The dried gases are forced by a blower 38 through a converter which consists of a catalyst containing portion 40 and a heat-exchanger 41.  The sulphur trioxide containing gases are absorbed in strong sulphuric acid in an absorber 43.  By means of connecting pipes 48 and 49, water needed to combine with sulphur trioxide in the absorber 43 is obtained from the drier 34 and strong sulphuric acid needed in the drier is obtained from the absorber 43.  Alternatively, the hydrocarbon content of the gases may be burnt out.  According to a modification, the sludge is decomposed by hot metal balls.  The resulting mixture of coke and balls is discharged on to a screen through which the coke passes, the balls, freed from coke, being heated by travel in countercurrent to combustion gases in a vertical shaft.  The separated coke may be used as a fuel.  Specifications 398,023 and 443,800 are referred to.
Patent GB-968758-A (GB)
Title: Improvements in or relating to dynamometers for testing the power and/or torque developed at the road wheels of motor vehicles
Inventor: WALKER WILLIAM FREDERICK DELAB
IPC: G01M17/007
Filed: 1962-08-27
Abstract: 968, 758. Measuring the torque at vehicle road wheels. W. G. WALKER & CO. (ENGINEERS) Ltd. Aug. 26, 1963 [Aug. 27, 1962], No 32807/62. Heading G1W. In a dynamometer for measuring the torque or power developed at the road wheels of a vehicle, the road wheels drive rollers 2, 3 (Fig. 2) which are coupled to a fan 9 via a torque reaction gear box and a belt 8. The fan is embraced by an axially adjustable cowl to vary the load applied to the system. The gear box which is movable with respect to a base structure 1 may comprise a system of sun and planetary gears having coaxial input and output shafts 5, 7, respectively. The turning moment of the gear box is resisted by a spring balance 12 connected to an arm 25 projecting from the gear box, radially with respect to the shafts thereby providing a measure of the output torque at the road wheels. A tachometer 24 may be provided to measure the fan speed, so that the power developed at the road wheels may be calculated. Specification 854,188 is referred to.
Patent GB-833095-A (GB)
Title: Miniature potentiometer and method of manufacturing same
Inventor: GORDON JAMES FRANKLIN
IPC: H01C10/40
Filed: 1957-10-21
Abstract: 833,095. Casting composite-articles. BECKMAN INSTRUMENTS Inc. Oct. 21, 1957, No. 32824/57. Class 83 (1). [Also in Groups XXXIV and XXXVI] A miniature potentiometer (see Group XXXVI), has an elongated body with end portions 12, 13, having saddles 48, 49, for receiving bearings 14, 15. In the preferred method of manufacture, the saddles 48, 49 are lined with a layer of metallic material, e.g. silver, by any means such as painting-on a film of material and then firing. The adjustment shaft 16 is then supported in position and, after blocking the opening ends of the saddles, a molten-bearing-material such as a lead-tinalloy is poured into the saddles. The shaft 16 is made of a material, e.g. stainless-steel, to which the molten-metal will not adhere. One end of the shaft has one or more circumferential grooves into which the molten bearing- metal enters to form a thrust-bearing. During pouring, the shaft 16 expands more than the ceramic-body 10 to provide end-clearance for the shaft on cooling.