baber/WOPTO huggingface dataset:
Patent GB-1231190-A (GB)
IPC: B21H1/22
Filed: 1967-12-13
Abstract: 1,231,190. Rolling. WILKINS & MITCHELL Ltd. 3 Dec., 1968 [13 Dec., 1967], No. 56582/67. Heading B3M. A workpiece is formed by moving it through the roll gap of a pair of forming rolls in which a stop is situated such that the workpiece moves by gravity to the roll pair and is located in the roll gap by means of the stop. A machine for carrying out the method comprises a series of roll pairs 28, 29, 30 and 31 which may be mounted vertically above each other or inclined, preferably at an angle of 45 degrees, to the horizontal so that a workpiece 85 falls by gravity between the roll pairs and is located by stops 78 in the roll gaps. Each roll pair has two stops, one in the form of a cam-operated shutter 40 before the roll pair and the other, 78, being resiliently biased in the roll gap. The stop 78 is moved away by means of a cam member 71 attached to shaft 69 on which a lever 68 carrying the stop is mounted. A member 73 on one of the rolls engages the cam member to move the stop out of the roll gap as the workpiece is gripped by the rolls. If the workpiece tends to overtake the stop then the stop is pushed aside by the workpiece. The workpiece may be turned in guides 57 located between the roll pairs which can be rotated about an axis parallel to the path of the workpieces or about an axis parallel to the roll axes by a mechanism driven synchronously by the roll drive. The shutter-type stops 40 are also operated by a drive synchronous with and preferably derived from the roll drive.
Patent GB-1233770-A (GB)
IPC: D03D49/52
Filed: 1968-08-19
Abstract: 1,233,770. Shuttle boxes. ,NORTH' AMERICAN ROCKWELL CORP. 19 Aug., 1968 [27 Sept., 1967],. No. 39553/68. Heading D1E.  Removal of the spring 32 acting through a lever 21 on a shuttle swell 16 is facilitated by inserting a machine screw through a large hole 36 in the lever and a smaller hole in the end cap 30 of the spring and screwing it into the other end cap 37; the spring can thereby be completely compressed. There may be two springs, one inside the other.
Patent GB-1239151-A (GB)
IPC: F16K3/02
Filed: 1969-04-18
Abstract: 1,239,151. Valves. INGENIEURBUREAU HAUSAMMANN & ISLER. 18 April, 1969 [25 April, 1968], No. 19912/69. Heading F2V. A sliding plate type valve is provided with roller bearings 32, 33 and the valve member constitutes a piston responsive to pressure in the valve chamber. As shown, the rollers 33 are carried in the cage 32 and run on bearing plates 30 recessed into the slider 66. Complementary bearing plates 31 are recessed into the valve body on the downstream side. The embodiment shown is operated by control valves 120, 121. From the position shown, valve 120 first applies pressure (a) through passages 115, 133 to move the seat 132 away from the slider, and (b) to remove a locking pin (129), Fig. 3 (not shown) from the rod 55. There after the reversing valve 121 connects the space 67 to exhaust and the slider is pushed into the open position by filling the cylinder space to the left of the slider. In a rapid opening construction for supersonic wind tunnels, the opposite ends of the valve chamber are in communication through, say six, valves (170, 171) at each end with chambers (177, 178), Fig. 7 (not shown). Chamber (177) is pressurized from the inlet (179) whilst chamber (178) is open to atmosphere. The valves (170, 171) are normally held closed by pressure applied through a pilot valve (175) and when released, the slider closes rapidly. Shock is prevented by plugs (168) entering the seat openings of valves (171). A second pilot valve (157) exhaust s the slider chamber at one end to allow it to close under the main fluid pressure.
Patent GB-1239401-A (GB)
IPC: G07F13/06
Filed: 1967-06-10
Abstract: 1,239,401. Mixing liquid and powder. S. A. MAXWELL. 7 June, 1968 [10 June, 1967], No. 26910/67. Heading B1C. [Also in Divisions A4; E1 and G4] Apparatus for dispensing a mixture of a liquid and powdered and/or granular material comprises a liquid storage tank 7 from which liquid can flow under gravity to a further tank 8 having a valve controlled dispensing pipe 44, and at least one canister 22, for the powdered material, including material dispensing means driven by an electric motor. The apparatus includes an electric timer which starts the or each electric motor after opening the dispensing valve and stops the or each motor before closure of the dispensing valve. The material dispensing means includes a pocketed wheel 29 (Fig. 2, not shown) to dispense the material through an aperture 35, detachable funnel 41 and mixing bowl 43 into a container (not shown). The materials within the canisters are agitated by agitators 39. The pockets in the wheel may each be divided into two parts and a radially slidable shutter may be provided between the wheel and the aperture 35, displacement of the shutter exposing either or both parts of each pocket. The tank 8 may include an immersion heater or a liquid cooling device and a fan 46 may be provided to exhaust steam. The tank 7 for cold water includes a vented chamber 13 which communicates with the chamber 12 via an aperture 17. The aperture 17 may be variable in size e.g. by a manually adjustable valve or automatically by providing the aperture with a float controlled valve which is operated by level of liquid in chamber 12. When water is dispensed from the tank 8, the water in chamber 13 will flow via pipe 11 faster than it can be replaced thus giving a substantially constant pressure on water in the tank 8.
Patent GB-1239733-A (GB)
IPC: F21K5/08
Filed: 1969-01-10
Abstract: 1,239,733. Flash cubes. WESTINGHOUSE ELECTRIC CORP. Jan.10, 1969 [Jan. 24, 1968], No.1653/69. Heading G2A. A flash-cube has a plurality of uncoloured lamps 16 each provided with a reflector 14. A cube shaped cover 12 of transparent material, e.g. polystyrene, has at least coloured side faces so that the artificial light emitted by the lamps is converted to light having the spectral characteristics of daylight. The colour is obtained by admixing quantities of blue, red and violet organic dyes with the polystyrene, the resultant polystyrene resin being blue-tinted. This is then used to form the cover 12 by injection moulding. The lamps are filled with shredded aluminium or zirconium foil, and can be coated with cellulose acetate.
Patent GB-1252862-A (GB)
IPC: H01P1/205
Filed: 1970-03-26
Abstract: 1,252,862. Microwave filter. LICENTIA PATENT - VERWALTUNGS G.m.b.H. 26 March, 1970 [11 April, 1969], No. 14723/70. Heading H1W. A microwave comb filter in which a number of metal comb elements 3, 5, 7, 14 &c: are coupled together (as shown by a side wall 2 of a waveguide section 6) comprises additional capacitative coupling by means of at least one metal spring 9 attached to a comb element and extending such that the free end of the spring lies opposite the end of the adjacent comb element. This capacitative coupling is adjustable by means of dielectric screws 10 which engage the springs 9, each comb element being electrically insulated from the adjacent element by providing an insulating coating on the spring either on the outer surface of the anchored end or on the inner surface of the free end. The capacity between each comb element and the side walls is adjustable by means of metal screws 11, 12 (Fig. 3, not shown). Input and output to the filter are respectively by coaxial connections 8 and 14.
Patent GB-1257252-A (GB)
IPC: H05B6/74
Filed: 1969-02-18
Abstract: 1,257,252. Microwave ovens. VARIAN ASSOCIATES. 18 Feb., 1969 [19 Feb., 1968], No. 8805/69. Heading H5H. A multimode microwave oven 11 has a mode stirrer assembly 19 comprising a plurality of rotatable conducting slats 21, each slat 21 having a dimension perpendicular to its axis of rotation which is at least one quarter of a wavelength. As shown, the width W of the slats 21 is half a wavelength, their axes of rotation 24 are parallel and in the same plane, the slats are parallel and are driven synchronously by a chain and sprocket arrangement 36, 37. Alternatively the slats can be driven separately, out of synchronism, oscillated, or in opposite directions. The slats 21 are preferably spaced by less than # at their position S of nearest approach and are spaced from the adjacent side wall by a distance less than #. Preferably the waveguide feed or feeds 16 is or are mounted at the opposite end of the cavity to the slats. Each slat 21 comprises four longitudinal segments secured to a shaft 26. A low loss polypropylene cylindrical shield may be secured to each shaft 26 to surround the slat and facilitate cleaning. More than one slat may be carried on each shaft. A conveyer may pass through the oven.
Patent GB-1257261-A (GB)
IPC: C21D1/04
Filed: 1969-02-25
Abstract: 1,257,261. Precipitation hardening. ELIN-UNION A. G. FUR ELEKTRISCHE INDUSTRIE. Feb. 25, 1969 [Feb. 27, 1968], No. 9979/69. Headings C7A and C7N. Alloys are precipitation hardened by the simultaneous application of solution heat treatment and one or more magnetic alternating fields and/or vibrations, followed by quenching. The magnetic fields or vibrations may be produced as follows:- (1) by electromagnetic induction, (2) by conductive supply of alternating currents, (3) by being brought into the field of a magnet of continuously changing magnetic polarity, (4) by relative motion between the alloy and the field of a magnet of constant polarity, (5) by means of the sound field of a sound generator, (6) mechanically, as by shaking. The alloy may be heated (a) by conduction, (b) by radiation, (c) by passing direct current therethrough, (d) by the eddy currents generated as a result of method (1) above and (e) by the A. C. of method (2) above. The example relates to the treatment of an alloy consisting of Cu 5À4-5À9% Fe 0À3% Si 0À15% Mg 0À05% Zn 0À2% Pb 0À3-0À6% Ni 0À3-0À6% Al balance.
Patent GB-1259271-A (GB)
IPC: F16H57/00
Filed: 1967-11-23
Abstract: 1,259,271. Shaft couplings. JOSEPH LUCAS (INDUSTRIES) Ltd. 9 Dec., 1968 [23 Nov., 1967], No. 53358/67. Heading F2U. In a gear-wheel pump the rotor 11 has a splined connection 24 with a hollow shaft 17, the end of which is formed as a pinion driving an auxiliary gear train 18, 20, 21, the shaft 17 being axially fixed in relation to the rotor 11 by tapered collets 26 engaging an annular tapered groove 25 in the rotor. The collets surround a tapered projection 27 at the end of shaft 17 and having a threaded portion 28 carrying a nut 29, tightening of which expands the collets into groove 25.
Patent GB-1264473-A (GB)
IPC: G21C13/04
Filed: 1968-02-22
Abstract: 1,264,473. Reactors. BRITISH NUCLEAR DESIGN & CONSTRUCTION Ltd. 21 Feb., 1969 [22 Feb., 1968], No. 8688/68. Heading G6C. In a guide tube arrangement for a re-entrant type gas-cooled nuclear reactor, the guide tube 4 extends between a pressure vessel standpipe 1 and a corresponding fuel or control rod channel 6, and passes through an aperture 11 in a pressure membrane 8 and through a tube 13 which is shorter than the guide tube 4, one end of the tube 13 being attached and sealed to the membrane 8 and the other end being attached and sealed to the guide tube 4 at a point intermediate along its length. Relative movement between the membrane 8 and the standpipe 1 is accommodated in the plane of the membrane 8 by the flexibility of the guide tube 4 and the tube 13, and in a perpendicular direction by relative axial movement permitted the ends of the guide tube 4. The guide tube 4 is in two parts 4A, 4B, the upper part 4A being provided with an enlarged head portion 16 which is a sliding fit within an enlarged bore portion 3 of the standpipe 1, and with a flange 17 at its lower end, while the lower part 4B is provided with a flange 18 at its upper end and with circumferentially spaced ribs 19 at its lower end which are a sliding fit in an enlarged bore portion 5 of the channel 6. The end wall 14 of the tube 13 and the flanges 17, 18 of the guide tube parts 4A, 4B are rigidly connected and sealed together. The diameters of the channel 6, the guide tube 4 and the smaller diameter portion of the standpipe 1 are substantially the same and are just sufficient to accommodate fuel element strings (not shown), so as to reduce the possibility of the strings rattling whilst being transferred from a suitable charge/servicing machine into the reactor core 7. During operation of the reactor, cool gas flows down through the annular passage defined between the fuel channel 6 and the fuel sleeve assembly 20 and is joined at the bottom of the reactor core 7 by further coolant fed to below the core. The coolant is returned through the fuel sleeve bore 21, and thence to the hot-box 9 by way of the guide tube 4 and ports 4C.
Patent GB-1265847-A (GB)
IPC: B29C/
Filed: 1969-06-20
Abstract: 1,265,847. Moulding foamed polystyrene. SWEDISH CRUCIBLE STEEL CO. 20 June, 1969 [6 Aug., 1968], No. 52496/70. Divided out of 1,265,845. Heading B5A. An expanded polystyrene body is made by pre-expanding granules of polystyrene containing blowing agent to a density of approximately ¢ pound per cubic foot by applying steam thereto in a vertically unconfined expansion space at a temperature above 212 F., filling a closed mould chamber with the expanded particles, compressing the particles by reducing the volume of the mould chamber, opening the mould chamber and removing the foamed body.
Patent GB-1289332-A (GB)
IPC: A01C17/00
Filed: 1969-09-30
Abstract: 1289332 Spreaders; hitches C VAN DER LELY NV 30 Sept 1969 [30 Sept 1968] 48092/ 69 Headings AID and A1P A device for spreading materials comprises a frame 1, a container 2 having a material outlet 44 and a spreading member 45 rotatable about a substantially vertical axis and is characterised in that the frame has a pair of ground wheels 4, 6 and, preferably, as shown an additional pair 3, 5 and the container has a sloping front wall 35 which is at an angle 36 of between 25 and 50 and preferably 30 to the horizontal, the lower end of the wall terminating rearwardly, as shown in Fig. 1, of the axes of rotation of the pair 4, 6 of ground wheels and the front and upper end of the wall ending forwardly of that pair of wheels.  The container is mounted on the frame by generally inverted U-shaped support plates 17, 27, 18 on the right-hand side of the device (Fig. 1) and similarly on the other side. A drive shaft 50 which in use is connected at 98 to an output shaft of a towing vehicle drives the spreading member 45 via gearbox 47 and may also drive a "knocking" device comprising belt-driven cam 66 whose surfaces bear onto a spring-loaded knocking bar. 69 pivoted at 70, which bar by means of thrusting member 74 knocks against thrust plate 75 rigidly mounted on front wall 35 in order to loosen any compacted material in the container 2. The knocking device may be disconnected by means of wire 94 which is pulled and stop 95 being engaged in a slot 97. At the front end of frame I a spring loaded parallelogram link 81-90, Fig. 5, may be provided to compensate for unevenness of the ground and so as to isolate the vertical movement of the towing vehicle. In a further embodiment (Figs. 6, 7 not shown) two oppositely diagonal loading springs are provided. Ground wheels 3-6 may be independently mounted and spring, Fig. 4, and are rotatably mounted at 55 on arms 54 Fig. 2 which are secured to frame members 13 via coil springs 57. The spreading member 45 has a disc 45A which closes off the lower end of the outlet spout 44 and a metering member 46 which includes a generally cylindrical annulus which rests at its lower end against disc 45A and surrounds at its upper end the spout 44 and has at least one outlet port which can be closed to a chosen extent to control the volume of material issuing from the container 2.
Patent GB-1295074-A (GB)
IPC: B26F3/06
Filed: 1969-03-28
Abstract: 1295074 Seaming non-metallic sheet material BRITISH OXYGEN CO Ltd 26 March 1970 [28 March 1969] 16544/69 Headings B5K and B5A At least two superposed layers 2, 4 are cut and welded by causing a narrow beam 14 of ions, electrons, photons or other energy carriers to cut by fusion at least the layer 4 which is of thermoplastic material and directing at the fused material a jet of gas of energy sufficient to cause the fused material to flow into or on to the layer 2 before solidifying. As shown, the layer 2 comprises a foamed plastics material and the layer 4 a nylon fabric. Gas is fed into a device 6 through an inlet 8 and discharged through a shaped outlet 10 on to the layer 4 in a suitable flow pattern. A laser beam 14 passes through a window 12 in the device 6 and is focused on or near the upper surface of the layer 4. In modifications (not shown), the layer 2 is of textile material of reticular or lamellar structure or the layers 2, 4 are of thermoplastic material of different gauges. In addition to the gas jet, welding may be effected by mechanically pressing the layers together so that the heat-softened portions thereof remain in contact.
Patent GB-1303319-A (GB)
IPC: C23D5/02
Filed: 1970-04-08
Abstract: 1303319 Coatings ENAMELLERS (ASHTON-UNDER-LYNE) Ltd LOYNE Ltd C P STOKES H H F STOKES K R STOKES and G A MANIFOLD 3 May 1971 [8 April 1970] 16602/70 Heading B2E A process for producing articles having a surface coating of polytetrafluoroethylene in which an article made of a ferrous material is provided with a porous vitreous enamel base coat which does not contain free quartz or metal and then a coating of polytetrafluoroethylene is applied after firing. The surface of the article may be prepared by pickling or shot blasting before the application of the vitreous enamel coat. The enamel may be applied by dipping or spraying and may be fired at 800-810‹C. The PTFE coating may be applied with a dispersion which may or may not be pigmented and one or two coats may be applied. The method may be used for application to domestic and catering appliances.
Patent GB-1307622-A (GB)
Title: Production of caprolactam
IPC: C07D201/10
Filed: 1970-08-07
Abstract: 1307622 Caprolactam IMPERIAL CHEMICAL INDUSTRIES Ltd 29 July 1971 [7 Aug 1970] 38135/70 Heading C2C [Also in Division C5]  Caprolactam is obtained by nitrosating at least one of methyl cyclohexyl ketone, methyl cyclohexyl carbinol, vinyl cyclohexane, methyl vinyl cyclohexane and dimethyl cyclohexyl carbinol, derived from methyl phenyl carbinol, methyl phenyl ketone or cumol, as the case may be, which has been co-produced in a process for  propylene oxidation to propylene oxide using either ethyl benzene hydroperoxide or cumene hydroperoxide. In examples the nitrosylating agent employed is nitrosyl sulphuric acid. The starting materials may be obtained, for example by hydrogenating methyl phenyl carbinol to methyl cyclohexyl carbinol followed by dehydrogenation to methyl cyclohexyl ketone or by dehydration to vinyl cyclohexane, or by converting methyl phenyl carbinol to acetophenone followed by selective hydrogenation to methyl cyclohexyl ketone; cumol may be converted to dimethyl cyclohexyl carbinol by con - trolled hydrogenation and the latter dehydrated to methyl vinyl cyclohexane.
Patent GB-1311752-A (GB)
Title: Ribbon burner
IPC: F23D14/58
Filed: 1970-05-02
Abstract: 1311752 Gas burners J H FLYNN 2 May 1970 21199/70 Heading F4T A ribbon burner 10 comprises an elongate casing 12 including a chamber 14, the chamber being divided into a main gas compartment 18  and a pilot gas compartment 20 by an internal partition 16 extending the length of the burner, part of the casing being formed by peripheral wall parts 32, 34 which converge towards each other at right angles but do not meet; the partition 16 is also formed by two parts 94, 96 which are spaced from and extend parallel to the peripheral wall parts and converge at right angles but do not meet, the gap between the wall parts 32, 34 and partition parts 94, 96 forming a groove 26 in which a flame port assembly is received. The assembly comprises two U-channels 40, 42 and main 36 and pilot 38 flame ribbons and is secured to opposite parallel side walls of the slot 26, the base webs of the channels seating on shoulders formed by the converging partition parts. The assembly seals the pilot compartment from the main compartment and divides the pilot gas compartment into two sections 48, 50 sealed from each other. That part of the burner around the groove 26 is strengthened by three sets of ribs which are spaced longitudinally of the burner, two sets 98, 100 extending between the wall parts 32 and 34 and the partition parts 94, 96 respectively, the third set 102 extending between the two partition parts. A gas inlet 56 supplies a gas/air mixture to the main gas compartment 18, in which the gas is distributed by a baffle plate 76 along the length of the burner to the main flame ribbon 36, secured between the U- channels 40, 42. A gas inlet 60 supplies a gas/air mixture to section 48 of the pilot gas compartment, from which the mixture passes via longitudinally spaced holes 52 in the U- channel 42 to the associated pilot ribbon. The other pilot section 50 is supplied from the main compartment 18 via an aperture (64), the flow being adjustable by a valve plug (66).
Patent GB-1314014-A (GB)
Title: Conveyor belts
IPC: B65G15/42
Filed: 1969-06-09
Abstract: 1314014 Laminated conveyer belts BTR INDUSTRIES Ltd 9 June 1970 [9 June 1969] 29112/69 Heading B5N [Also in Division B8] An endless conveyer belt formed of a plurality of reinforcing plies 11 and one or more layers of polymeric material 12 is reduced in thickness at 13, to form a depression 14 in the vicinity of holes 15, by compression of the polymeric material. The reinforcing plies may be made from cotton, rayon, glass fibre, polyamide or polyester fibres and the material 12 may be made from rubber or a thermoplastics material, e.g. P.V.C. The depressions 14 are formed during manufacture of the belt by suitable shaped plates in a press (not shown). The holes 15 in the belt are used to attach studs (20), Fig. 3 (not shown), to the belt.
Patent GB-1316197-A (GB)
Title: Exchanger for the production of domestic hot water
IPC: F24D3/08
Filed: 1971-04-30
Abstract: 1316197 Water heaters; concentric-tube heat exchangers SOCIETE D'ETUDE ET DE CONSTRUCTION DE CHAUDIERES EN ACIER SECCACIER 30 April 1971 12459/71 Headings F4A and F4S A domestic water heater comprises an outer chamber 1 for primary water and a coaxial inner chamber 5 with detachable end plates 5 1 , 5 2  for secondary domestic water, both chambers having helical baffles 6, 7 to produce counterflow of water in the chambers; primary water from a boiler enters at 3 and discharges at 4 whilst cold domestic water enters at 6 1  and hot domestic water discharges at 6 2 . The detachable end plates 5 1 , 5 2  provide access to the inner chamber 5 which has a lining of polyamide to protect against tartar deposits and corrosion.
Patent GB-1320577-A (GB)
Title: Tape control device
IPC: G11B15/56
Filed: 1970-08-17
Abstract: 1320577 Controlling tapes LANIER ELECTRONIC LABORATORY The 17 Aug 1970 39561/70 Heading G5R In order to prevent breakage of a tape 10 acted on by two drive devices 11,12 respectively arranged to remove tape from a random storage container 13 through apertures 21, 22, a lamp 24 and photo-cell 26 are arranged to cause the power supply to each device to be cut off whenever there is insufficient tape in the container as to block the light path between the lamp and photo-cell. A signal delay element (28, Fig. 2, not shown) may, however, be placed in series with the photo-cell to allow tape drive to continue for a short while after the photo-cell becomes illuminated, thereby allowing some positions between the normal cut-off position P 3  and the breaking position P 1  to be occupied.