baber/WOPTO huggingface dataset:
Patent GB-1150073-A (GB)
Title: Improvements in or relating to rolling
Inventor: YEOMANS KENNETH ALFRED
IPC: B21B37/16
Filed: 1965-06-16
Abstract: 1,150,073. Rolling. BRITISH IRON & STEEL RESEARCH ASSOCIATION. 14 June, 1966 [16 June, 1965], No. 25437/65. Heading B3M. [Also in Division G3] A method of rolling stock in at least two passes includes controlling the roll gap of the penultimate of the two passes, such that the stock will be presented to the last of the two passes with a cross-section which will result in a product having a desired cross-section after passing through the last pass. As applied to a reversing stand 11, Fig. 5, the height and width of the stock 5 are measured by a gauge 13 during the penultimate pass, and the values are fed to a controller 12. Also fed to the controller are the desired stock output after the final pass, the size of the stock prior to rolling, the roll diameters for the penultimate pass, and the spread coefficient of the stock. The controller, which may be of digital or analogue type, adjusts the stand to produce a stock cross-section suitable for the final pass. An automatic gauge control may be provided for the final pass, if this is warranted, in order to keep the pass at a desired value. A similar controller 28, Fig. 7, is used In a continuous mill to control the penultimate pass 24. The dimensions of the stock are measured after the final pass 25 by a gauge 27 and fed to the controller. If desired, a further gauge 26, either before or after the stand 24, also feeds information to the controller. The gap in stand 24 is ideally set such that the product assumes the desired final cross-section after stand 25. As before, an automatic gauge control may be provided for stand 25, if the spring of the stand warrants it. The stock is arranged to be free of interstand tension during rolling.
Patent GB-1473615-A (GB)
Title: Spectrometer with interferential selective amplitude modulation
IPC: G01N3/00
Filed: 1975-06-13
Abstract: 1473615 Spectrometer with interferential selective amplitude modulation LENINGRAD GOSUDARST UNIVERSITET IM AA ZHDANOVA 13 June 1975 [13 June 1974] 25438/75 Heading G1A [Also in Division G2]  In such a spectrometer a collimated light beam incident on a symmetrically ruled grating 7 is diffracted into two ways of a given wavelength, which return to grating 7, the first after reflection from scanning mirror 15 and the second after reflection from mirror 10, with its reflecting surface 11 parallel to the grating rulings 8, then from mirror 15 and from mirror 10, both rays then being diffracted in the same direction, interfering and being directed on to light structure device 24 actuating means 26 indicating or displaying spectral composition. Entrance aperture 1 in casing 2 lies at the principal focus of collimating lens 3 in mounting 4. Semi-transparent mirror 5 in mounting 6 is at 45 degrees to the principal axis of lens 3. On base 9, modulator mirror 10 is a Piezo-ceramic capacitor with plates 11 which is reflecting, and 12 and coupled to generator 13 through insulator 14. Mirror 15 on base 17 positioned by spring 21 can be adjusted by screw 19 and nut 20 for rotation about axis 18 parallel to rulings 8. Grating 7 is positioned so that the zero order ray of diffraction misses exit aperture 22. Only rays of a given wavelength coincide at aperture 22 to interfere to give a modulated intensity at photo-multiplier 24 feeding oscilloscope 26 via selective amplifier 25. Synchronous detection may be used. In another embodiment mirror 10 is replaced by a mirror arrangement in which the reciprocating motion of the reflecting surface is achieved by an adjusting screw Fig. 5 (not shown). In another embodiment Fig. 6 (not shown), the axis of rotation of the scanning mirror is the line of intersection of the plane of the reflective surface (equivalent to surface 11) and the plane of the rulings. The number of reflections of the first and second rays are respectively 2n + 1 and 2n + 3, where n is an integer.
Patent GB-1210261-A (GB)
Title: Improvements in or relating to air cushion supported platforms
Inventor: NOBLE BRUCE THOMAS
IPC: B65G7/00
Filed: 1967-06-01
Abstract: 1,210,261. Hover-pallets. BRITISH HOVERCRAFT CORP. Ltd. 7 May, 1968 [1 June, 1967], No. 25459/67. Heading B7K. An air-cushion supported load-carrying pallet 1 is formed on its base with a flexible diaphragm 2 secured at its centre 3 and also at its periphery 4. The diaphragm is pre-formed with concentric corrugations such as 11, Fig. 1, to ensure that it is retracted clear of the ground 10 when the pallet is resting on wheels or supports, not shown. When inflation fluid is delivered through aperture 6 the diaphragm is inflated to the shape shown in Fig. 2, fluid being discharged through apertures 7 to form a supporting cushion 8. A stiffening bead or lip may be formed on or attached to the outer lower periphery of the diaphragm.
Patent GB-1420367-A (GB)
Title: Copolyesters
IPC: C08G63/00
Filed: 1973-05-29
Abstract: 1420367 Thermoplastic copolyesters E I DU PONT DE NEMOURS & CO 29 May 1973 [30 May 1972] 25466/73 Heading C3R A copolyester is derived from (a) a poly- (alkylene oxide)glycol of molecular weight 150-250 and a carbon to oxygen ratio of from 1À5 : 1 to 2À4 : 1, (b) a dicarboxylic acid of molecular weight not greater than 300, and (c) a diol, other than (a) of molecular weight not greater than 250, the copolyester containing 30-65% by weight of 1,4-butylene terephthalate units and 0-20% by weight of other units derived from (b) and (c) which are present in an amount of at least 6% by weight when less than 45% by weight of the copolyester consists of 1,4-butylene terephthalate units. The copolyesters may contain stabilizers, e.g. syn-dibeta-napthyl-p-phenylenediamine, and fillers, e.g. carbon black, silica gel, alumina, clay or chopped fibreglass. The examples describe copolyesters prepared from (a) poly(ethylene oxide)glycol, (b) dimethyl terephthalate, optionally with dimethyl isophthalate, and (c) 1,4- butanediol.
Patent GB-768724-A (GB)
Title: Window mountings for motor vehicles
Inventor: RAMSAY THOMAS WILSON
IPC: B60J10/02
Filed: 1954-09-03
Abstract: 768,724. Mounting vehicle windows. MORRIS MOTORS, Ltd. Sept. 29, 1955 [Sept. 30, 1954], No. 25587/54. Class 20(3) An extruded rubber glazing strip 1 for mounting the curved glass pane 7 of a wrap-round type of front, or rear, vehicle window has a channel 2 for tightly gripping the edge of the pane 7, and a flap 3 which forms a recess 4 wide enough to afford the requisite range of lateral adjustment of the strip 1 with respect to a retaining flange 6 of the window surround which is received within the recess. A lip 8 affords a seal with the adjoining part 9 of the panelling of the vehicle, a sealing compound being applied under the lip to render the joint waterproof.
Patent GB-656123-A (GB)
Title: Improvements in or relating to radio navigation systems
Inventor: O'BRIEN WILLIAM JOSEPH
IPC: G01S1/30
Filed: 1948-10-08
Abstract: 656,123. Phase measurement. DECCA RECORD CO., Ltd., O'BRIEN, W. J., BRIDGES, D. E., HENDLEY, D. A., EASY, M. H., and VICKERS, J. Oct. 8, 1948, No. 25730/49. Divided out of 656,108, [Group XL (c)] [Class 37] [Also in Group XL (c)] A phase meter for use in a radio-navigation system as is described in Specification 656,108, [Group XL (c)], is provided with holding means for maintaining the indication after the end of the application of the signals whose phase difference is to be measured. This enables satisfactory indications to be given even when, as in the system described in the abovementioned Specification, the signals are only applied for half a second or less. The phase discriminator circuit shown is similar to that described in Specification 624,042, the inputs being applied across the primaries of transformers 140 and 141 and voltages being generated on lines 150 and 153, respectively, proportional to the sine and the cosine of the phase angle. These voltages are applied through relay contacts 155, 156, to the grids of cathode follower valves 157, 158, whose loads include the coils of phase meter 161. Condensers 159 and 160 are connected across the sine and cosine inputs to the indicator circuit and contacts 155, 156; arranged to shut immediately after the application of signals to the discriminator and to open shortly before such signals cease. Thus, providing the contacts are closed for sufficient length of time to fully charge holding condensers 159 and 160, the potentials across the condensers will maintain the indication on meter 161 for a considerable time providing no grid current flows in valves 157, 158, and the leakage is kept small. Specifications 620,479 and 630,698, [both in Group XL (c)], also are referred to.
Patent GB-613837-A (GB)
Title: Improvements in and relating to ignition systems
IPC: F02P3/00
Filed: 1945-10-03
Abstract: 613,837. Dynamo-electric machines. WICO ELECTRIC CO. Oct. 3, 1945, No. 25739. Convention date, Dec. 7, 1944. [Class 35] [Also in Group XXVII] An alternating current generator 1 for an ignition system (see Group XXVII) charges a condenser 2 through a bridge rectifier circuit comprising rectifiers 3a ... 3d. Each pulse of voltage provided by the generator is used to charge the condenser. The generator has a stator 11 carrying four coils 13 connected in series, the terminals being connected to points 18 and 19 on the bridge rectifier circuit. Each voltage wave from the generator has a sharply rising portion and an immediately ensuing sharply falling portion followed by a relatively long interval where there is no substantial change of voltage. The width of the pole faces 10 on the rotor (Fig. 4) is substantially wider than the width of the pole faces 32 on the cores 12 of the coils 13. The pole faces are true part cylindrical surfaces coaxial with the generator shaft and the clearance between the faces is preferably reduced to a minimum. Curves showing the variations of open circuit flux and open circuit voltage of the generator are indicated in the Specification. Curves of current to and voltage on the condenser, plotted against degrees of rotation of the generator, are also included. These show that the charging of the condenser oceupies a greater portion of the angular movement of the rotor at high than at low speed. Curves of current to and voltage on the condenser for a 12-pole generator are given and these illustrate how the range of advance of 40 degrees (20 degrees of rotation of the generator driven at half engine speed by the cam-shaft) can be obtained.
Patent GB-771238-A (GB)
Title: Improvements in or relating to work-holding mandrels
Inventor: GRIFFITHS RICHARD WILLIAM
IPC: B23B31/40
Filed: 1953-09-18
Abstract: 771,238. Mandrels. TALBOT TOOL CO., Ltd. Nov. 23, 1954 [Sept. 18, 1953], No. 25833/53. Class 83 (3). A mandrel comprises an internally-tapered split-sleeve 9, on which a workpiece is to be secured, mounted on an arbor 1 having a correspondingly tapered part 6, and screw-means for moving the sleeve along the arbor to vary its external diameter and so grip or release the work. The means consists of a nut 14 engaging a screwed part 7 of the arbor and having a recess 15 for the flanged-end 13 of the sleeve, which is retained therein by a ring 16 fixed to the nut by screws 17. The sleeve is prevented from rotating by a peg 8 or key engaging the slit 10. A number of sleeves may be provided for alternative use on the arbor to cater for a range of external diameters. The work is located endwise against ring 16.
Patent GB-637263-A (GB)
Title: Improvements relating to resilient mountings
IPC: F16F1/38
Filed: 1947-09-23
Abstract: 637,263. Resilient mountings. PIRELLI SOC. PER AZIONI. Sept. 23, 1947, No. 25864. Convention date, July 5, 1944. [Class 108 (iii)] In a resilient mounting of the kind in which the resilient element is composed of rubber or the like possessing the characteristic of becoming progressively stiffer under increasing load of compression, the resilient element is so shaped that it has substantial lateral deformation under load and there are disposed about it, as integers of the mounting, a rigid surface or surfaces so positioned as in the unloaded condition of the mounting to be spaced from the surface of the element, said surface or surfaces comprising or including a surface or surfaces placed laterally abreast of the element, but in spaced relation to the periphery thereof so as to lie in the path of the periphery as the element deforms laterally under load, which rigid surface or surfaces is or are so shaped and positioned as by controlling the deformation of the resilient element, to force a change or changes in the kind of stress to which it is subjected as the load on the mounting is progressively increased, according to the requirements of a predetermined deformation diagram in respect of the mounting. In the arrangement shown, a suitably shaped surface 4 of. a disc-shaped terminal member 1 abuts axially thereof an annular rubber block 3 which during deflection of the mounting, peripherally engages an inner surface 5 of an annular terminal member 2. The rubber block 3 is provided with a rigid bushing 3a. On deflection from the unloaded position (shown in dotted lines), by progressively increasing axial load on the member 1, the nature of the stress to which the block 3 is subjected, for a given shape of block, alters in dependence upon the respective shapes of the surfaces 4 and 5. Other arrangements (Figs. 2 and 3, not shown) disclose alternative shapes for the surfaces 4 and 5. Specification 621,693 is referred to.
Patent GB-167697-A (GB)
Title: Improvements in furnace fronts
IPC: F23D11/00
Filed: 1920-09-08
Abstract: 167,697. White, W. A. Sept. 8, 1920. Liquid-fuel fittings. - In an oil-fired furnace front, air is supplied around the burner through a hit-and-miss valve 4 rotatable on a conical grid 3 mounted around the central burner opening. Adjacent to each slot of the grid is secured a helically curved vane 7, the effect being to direct the air tangentially and obliquely towards the burner. Some of this air enters the burner jacket through slots 13 inclined to suit the direction of the air currents.
Patent GB-860805-A (GB)
Title: Process for the manufacture of substituted formamides
IPC: C07C233/00
Filed: 1957-08-16
Abstract: Substituted formamides are prepared by reacting a primary or secondary amine with carbon monoxide at temperatures above 100 DEG C. and pressures above 50 atmospheres in the presence of water as sole catalyst.  If the amine is insoluble or substantially insoluble in water, a water-miscible liquid solvent may be added. Preferably the water-content is at least 5% by weight of the amine.  Specified and exemplified amines are dimethylamine, isohexylamine and piperidine.
Patent GB-950517-A (GB)
Title: Improvements in or relating to heat exchanger apparatus
Inventor: DUPUY GERARD
IPC: G21C1/14
Filed: 1961-07-18
Abstract: 950,517. Heating and cooling liquids in bulk. COMMISSARIAT A L'ENERGIE ATOMIQUE. July 18, 1961 [July 18, 1960], No. 25980/61. Heading F4S. [Also in Division G6] In an apparatus for heat exchange between a liquid and another fluid, the liquid flows through a casing 9 over tubes 8 (only one of which is shown) through which the other fluid passes, and a variable body of gas is maintained in the top of the casing to depress the liquid level therein and hence to vary the effective area of heat exchange surface between the two fluids. As shown, the liquid 13 is contained in the tank of a reactor of the swimming pool type in which the heat exchange is immersed so that liquid enters the casing 9. Circulation of liquid through the casing is maintained by a pump 14 by way of a duct 12 and ports 11 in the casing wall.
Patent GB-518835-A (GB)
Title: An improved method of folding and closing the ends of bags, packages, or the like
IPC: B65D77/14
Filed: 1938-09-06
Abstract: 518,835. Paper bags. ROSE, A. G., and ROSE BROS. (GAINSBOROUGH), Ltd. Sept. 6, 1938, No. 25998. [Classes 94 (i) and 94 (ii)]. A rectangular packet has a thin lining projecting beyond the outer packet so that the end may be closed as described in Specification 281,174, [Class 94 (ii)] but with the projecting portior of the lining only forming the preliminary upstanding " projecting seam 17.
Patent GB-890281-A (GB)
Title: Improvements in or relating to edge rolling attachments for rim rolling machines
IPC: B21D53/30
Filed: 1959-07-29
Abstract: 890,281. Rolling. KELSEY-HAYES CO. July 29, 1959 [Oct. 27, 1958], No. 26036/59. Class 83 (4). In a rim-rolling machine rolls 12, 13, Fig. 1, are mounted on a frame 11 for relative movement toward and away from each other during a rim-rolling operation and means are provided for rounding a corner of one edge of a rim-blank during the rim-rolling operation, including means mounted for axial pressure engagement with the corner of the edge. A blank B is rolled to the form shown in Fig. 5, the lower roll 13 being raised during rolling by a doubleacting hydraulic cylinder 18 actuated through a solenoid-controlled four-way valve 23. The upper roll 12 which may, like the lower roll, comprise several circular segments secured together, includes a portion 29 which protrudes into a relieved portion 28<SP>1</SP> of the roll 13 so that the outer corner of the outboard edge of the rim is contained and rolled smooth by an arc 30<SP>1</SP> of the roll 12. On reaching the position of the rolls shown in Fig. 5, a limit switch is operated by the upward movement of the roll support 16 which actuates a solenoid to admit compressed air through another four-way valve to a double-acting cylinder 49 to move a grooved smoothing roll 31 laterally into engagement with the outboard edge of the blank to further smooth the outside corner and also to smooth the inside corner of the edge. The roll rotates freely and slides axially on a block 36 in a slide 42 (not shown) which slides in turn in a fixed guide 45 in a direction parallel to the axis of the rolls 12, 13 for engagement of the roll 31 with the work. After a definite time, the solenoids are automatically released to simultaneously operate the four-way valves, however, due to the compressed air cylinder 49 being quicker-acting than the hydraulic cylinder 18, the roll 31 disengages before the roll 13 is lowered. Since the edge roll 31 is grooved to act on both corners of the edge such a roll may be used with rolls similar to 12, 13, but not having a smoothing flange. In a modification, Fig. 6, a freely-rotating roll 71 acts on the inner corner of the outboard-edge of the rim-blank against a freely-rotatable, laterally-adjustable backing roll 72, the roll 71 being engaged axially by a pneumatic cylinder 80 and adjusted laterally by screw-adjustment of a sliding spindle block 74.
Patent GB-498214-A (GB)
Title: Improvements in or relating to hulls for marine craft
IPC: B63B1/20
Filed: 1937-07-08
Abstract: 498,214. Ship and boat hulls. BILLING, N. P. July 8, 1937, No. 26087 /36. [Class 113 (ii)] The lower surface of a boat hull has two longitudinally disposed tunnels each bordered by steps having horizontal treads 31, 32, 33 ... and inclined risers 36. The treads and risers may be straight or curved in crosssection. The tunnels contain the propellers 38, the depth of submergence of which can be adjusted selectively to assist steering. The forward ends of the steps merge into a smooth surface.
Patent GB-698162-A (GB)
Title: Improvements in the processing of nickel-copper mattes
IPC: C01G53/00
Filed: 1951-11-08
Abstract: Nickel-copper mattes having a sulphur content insufficient for binding the metals as sulphides, say 20 per cent, are preferably first subjected to prolonged heating, e.g. at 500 DEG C, to promote a growth of grain and a demixing of the phases, and after comminution, the fraction consisting pre-dominantly of metallic nickel and copper is mechanically separated, e.g. by magnetic treatment, flotation, windsifting or sieving, and is treated with a nickel-dissolving agent such as sulphuric, hydrochloric, nitric or organic acid, or salt solutions, e.g. of copper sulphate or ferric chloride.  The metallic copper produced carries any noble metals present.  Any copper passing into solution may be precipitated by treatment with a further amount of the metallic fraction.  The nickel salts solutions may be crystallized, or nickel sulphate solution so obtained may be electrolyzed, the acid formed anodically being re-used.  The metallic fraction may also be used for purifying nickel salt solutions obtained otherwise, precipitating all metals nobler than nickel.ALSO:Nickel-copper mattes having a sulphur content insufficient for binding the metals as sulphides, say 20 per cent, are preferably first subjected to prolonged heating, e.g. at 500 DEG C, to promote a growth of grain and a demixing of the phases, and after comminution, the fraction consisting predominantly of metallic nickel and copper is mechanically separated, e.g. by magnetic treatment, flotation, windsifting or sieving, and is treated with a nickel-dissolving agent such as sulphuric, hydrochloric, nitric or organic acid, or salt solutions e.g. of copper sulphate or ferric chloride.  The metallic copper produced carries any noble metals present.  Any copper passing into solution may be precipitated by treatment with a further amount of the metallic fraction.  The metallic fraction may also be used for purifying nickel salt solutions obtained otherwise, precipitating all metals nobler than nickel.
Patent GB-209145-A (GB)
Title: Improvements in or relating to belting for machinery
IPC: F16G5/18
Filed: 1922-09-29
Abstract: 209,145. Green, H. Sept. 29, 1922. Belts.-In a link belt for use with grooved pulleys, the pivot pins connecting flat metal @inks arranged side by side, are of leather, fibre, wood or like frictional material, the ends of the pins protruding to form the driving faces or having attached thereto pieces of similar frictional material for this purpose. In the form shown in Figs. 1 and 3, pairs of links a secured together by rivets or screws a' alternate with single links of similar shape, the pivot pins b being merely a close fit in the holes. A multiple arrangement of links is shown in Fig. 5 in which the pins b do not protrude but have attached thereto by screws c, gripping pieces b<1> of similar material, preferably circular in share and of slightly largerdiameter. In another form, the gripping pieces comprise extended plates each secured to a pair of pins. The Provisional Specification describes also the use of pivot pins of cork, balata &c.
Patent GB-810879-A (GB)
Title: Improvements relating to draught-controlling means for domestic fireplaces
IPC: F24B1/19
Filed: 1956-08-28
Abstract: 810,879. Air supply to open fireplaces. DICKSON, F. G. Aug. 8, 1957 [Aug. 28, 1956], No. 26297/56. Class 126 The air supply device for domestic fireplaces described in Specification 637,910 is provided with additional means for regulating the amount of air comprising crescent-shaped blades 11, 12, Fig. 3, mounted on a common vertical pin 13 and movable horizontally across the inlet opening 14, Fig. 2, at the base of the device. The pin 13 is mounted in.a ring 15 having a dependent sleeve 16 for entering a hole in the floor, and an upturned lip 17 which fits into a downturned lip 18 on a flange 2 of the inner casing 1. The ring 15 and the flange 2 form an annular space which receives the blades 11, 12 in their fully opened position. The edge of an expanded metal screen 19 stretched across the opening 14 is accommodated within the annular space. The closing movement of the blades is limited'by stops 11a, 12a constituted by small upstanding tongues on the overlapping parts of the blades remote from the pin 13.